362 results on '"ALKAN, Mehmet"'
Search Results
152. Detection of coal ash turbidity in marine environment using remote sensing
- Author
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Yıldırım, Yılmaz, Alkan, Mehmet, Oruç, Murat, and Zonguldak Bülent Ecevit Üniversitesi
- Subjects
Classification and turbidity ,Marine pollution ,Landsat ,Slug and fly-ash - Abstract
Power production using fossil fuels can bring significant adverse effects on the surrounding environment. In this study, detection of industrial ash turbidity from a coal-fueled power plant in marine water and its interaction with marine environment were evaluated using 3 satellite imageries. To this aim, e-Cognition v.4.0.6 software was utilized to perform detection, classification and comparison of the polluted area in the aquatic marine environment using Landsat-5 TM satellite imageries and Landsat-7 ETM + satellite imagery. Total polluted area, obtained from Landsat satellite imageries, was classified into 3 regions: highly polluted, moderately polluted and less polluted region, and their polluted field dimensions were evaluated to be 10.19 km2and 7.50 km2 for Landsat TM imageries as well as 37.73 km2 for Landsat ETM+ imagery. Total suspended solids (TSS) levels were determined as 2380±213 mg.L-1, 361±118 mg.L-1 and 57±24 mg.L-1for the highly, moderately and less polluted regions, respectively. This study may serve as a database for future comparisons to identify the trend of improvement or deterioration of coastal environment of Zonguldak.
- Published
- 2009
153. Romatoid artrit tedavisine yönelik protein A- takılı poli(HEMA) kriyojellerin hazırlanması
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Alkan, Mehmet Hüseyin, Baysal, Zübeyde, and Kimya Anabilim Dalı
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Biyokimya ,Biochemistry - Abstract
Romatoid artrit (RA) vücudun kendi bağışıklık sisteminin sağlıklı hücrelere saldırdığı bir otoimmün bozukluktur. Dünya nüfusunun %1-3' ünde RA görülmektedir. Son yıllarda RA hastaları için tedavi yöntemlerinde oldukça yol katedilmiştir. Bu yöntemlerden biri olan immünoadsorpsiyon yöntemi ile, plazmadan sadece patojen antikorlar uzaklaştırılmaktadır. Ligand olarak Staphylococcal Protein A ile afinite kromatografi uygulamaları, antikor saflaştırılmasında yaygın olarak kullanılmaktadır. Protein A, antikorların Fc kısımlarına spesifik olarak bağlanan bir proteindir.Sunulan çalışmada, RA tedavisine yönelik protein A takılı-Poli(2-hidroksietil metakrilat) kriyojel hazırlanmıştır. İlk basamakta yığın polimerizasyon tekniği ile plastik şırıngada monomerin sulu çözeltide donmasıyla (donmuş-polimerizasyon) Poli(HEMA) kriyojel hazırlanmıştır. Buz eridikten sonra Poli(HEMA) kriyojelinde 10-200 µm gözenek boyutunda birbiriyle bağlantılı makrogözenekler oluşturulmuştur. Daha sonra CNBr ile aktive edilip spesifik ligand olarak protein A bağlanmıştır. Hazırlanan protein A takılı-Poli(HEMA) kriyojel yüzey alan ölçümleri, şişme testleri, taramalı elektron mikroskobu (SEM) ve FTIR ile karakterize edilmiştir. Protein A takılı-poli (HEMA) kriyojelinde maksimum immünoglobülin G (IgG) adsorpsiyonu pH 7.4' te 83.2 mg/g olarak bulunmuştur. İnsan plazmasından adsorpsiyon incelendiğinde ise daha da yüksek adsorpsiyon kapasitesi elde edilmiştir (98.7 mg/g). Poli(HEMA) kriyojelin spesifik olmayan IgG adsorpsiyonu ise 0.38 mg/g olarak belirlenmiştir. Adsorbe olan IgG 0.1 M Glisin-HCl (pH 3.5) tamponuyla % 85 saflıkta elüe edilmiştir. Sıcaklık deneylerinde 37°C' de maksimum IgG adsorpsiyon kapasitesi (98.8 mg/g) gözlenmiştir.İmmobilize edilen protein A miktarı artıkça adsorplanan romatoid faktörün de artığı gözlenmiştir. İnsan Serum Albumin (HSA) ve IgG protein karışımı ile insan plazması için hesaplanan RS değerleri sırasıyla 2.28 ve 2.63 olarak bulunmuştur.Kan uyuşabilirlik çalışmalarında pıhtılaşma zamanı (CT), aktive kısmi tromboplastin zamanı (APTT), protrombin zamanı (PT) ve fibrinojen zamanı (FT) tayin edilmiş, protein A takılı-Poli (HEMA) kriyojellere ait bütün pıhtılaşma zamanlarının poli (HEMA) kriyojele göre arttığı gözlenmiştir.Protein A takılı- Poli(HEMA) kriyojel ile 10 kez adsorpsiyon/desorpsiyon yapıldığında IgG adsorpsiyon kapasitesinde belirli bir azalma olmadan tekrar kullanılabilir olduğu görülmüştür. Rheumatoid arthritis is an autoimmune disorder in which the immune system of the body attacks healthy cells. RA prevails among 1-3 % of the world population. In recent years, the RA treatment methods have advanced greatly. One of the methods involving the removal of only pathogenic antibodies out of the plasma is immunoadsorption. Affinity chromatography applications utilizing Staphyloccal Protein A as the ligand have been widely used in antibody purification. Protein A is a protein which binds specifically to Fc domain of the antibodies.In the present study, protein A immobilized poly(2-hydroxyethyl methacrylate) cryogel was prepared. Firstly, poly(HEMA) cryogel was prepared by bulk polymerization which involves freezing of the monomer in aqueous solution in a plastic syringe. After thawing, adjacent pores of 10-200 µm in size formed in the matrix of poly(HEMA) cryogel. The cryogel was then activated by cyanogen bromide (CNBr) followed by immobilization of protein A. The protein A immobilized poly(HEMA) cryogel was characterized by surface area measurements, swelling tests, scanning electron microscopy (SEM) and FTIR. The maximum IgG adsorption by the immobilized cryogel was found to be 83.2 mg/g at pH 7.4. Higher adsorption capacity of IgG (as high as 98.7 mg/g) was reached by the cryogel when human plasma was used. The non-specific IgG adsorption onto the poly(HEMA) cryogel was about 0.38 mg/g. The IgG adsorbed was eluted using 0.1 M glycine-HCl buffer (pH 3.5) with a purity of 85 %. Maximum IgG adsorption capacity was determined to be 98.8 mg/g at 37 oC in temperature experiments.It was observed that the rheumatoid factor increased as the immobilized protein A in the cryogel was increased. The computed Rs values for a mixture of Human Serum Albumin (HSA) and Immunoglobulin G (IgG) proteins and human plasma were 2.28 and 2.63, respectively.It was observed that the factors of Clotting Time (CT), Active Partial Tromboplastine Time (APTT), Protrombine Time (PT) and Fibrinogen Time (FT) increased with protein A immobilized poly(HEMA) cryogel as compared to poly(HEMA) cryogel.Protein A immobilized poly(HEMA) cryogel used for repetitive adsorption/desorption of IgG without noticeable decrease in IgG adsorption capacity after ten cycles. 145
- Published
- 2009
154. Türkiye'deki yenilenebilir enerji kaynaklarının eğitimi ve öğretimi
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Alkan, Mehmet Ali, Karabulut, Abdurrahman, and Makine Eğitimi Anabilim Dalı
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Energy ,Renewable energy resources ,Enerji - Abstract
Fosil yakıtların sınırlı rezervlerinin tüketilmesi ve çevresel etkileri yüzünden yenilenebilir enerji kaynaklarına (YEK) olan ilgi gün geçtikçe artmaktadır. Gelişmekte olan ülkeler arasında bulunan Türkiye, hızlı sanayileşme ve hızlı nüfus artısı sonucunda artmakta olan enerji talebini karşılamakta güçlük çekmektedir. Enerji talebinin karşılanması için YEK'in verimli şekilde kullanılması gerekmektedir. Ayrıca ülkemizdeki bilim adamları Araştırma-Geliştirme (Ar-Ge) çalışmalarıyla yenilenebilir enerjinin değerlendirilmesi için parlak bir gelecek ortaya koymaktadırlar. Fakat YEK'in gelecek nesillere hızlı ve erken yayımı, etkili eğitimi ve YEK'i öğretmede daha fazla ilgi gösterilmemektedir.Bu çalışmada, Türkiye'de YEK'in üniversite düzeyinde eğitim ve öğretiminin durumunu öğrenmek için anket hazırlanmış ve 14 üniversiteye uygulanmıştır. Elde edilen sonuçlar SPSS istatistik veri analiz programı ile analiz edilmiştir. Yapılan analiz sonucunda YEK konuları içinde jeotermal, güneş ve rüzgar enerjisi master seviyesinde eğitim sağlanmaktadır. Diğer YEK konuları ise lisans seviyesinde klasik mühendislik dersleri içinde öğretilmektedir. Öğretme Türkçe dilinde ve ansiklopedik seviyededir. Öğretim materyallerinin hazırlanması ve bulunması pahalı olması nedeniyle eğitim de problemler çıkmasına neden olmaktadır. Türkiye üniversitelerinde YEK üzerine diploma verilmemektedir. Bu nedenle Türkiye mühendislik diplomalarıyla yenilenebilir enerjisinden faydalanma yolundadır. Diplomanın olmaması bu konuda uzman kişilerin iş başına gelmelerini de etkilemektedir. Bu eğitim yetersiz sayılabilir, genişletilmeli ve gelecekte daha da güçlendirilmelidir. As a consequence of the environmental effects and the consumption of limited reserves of fossil fuel, the attention to Renewable energy sources (RES) has increased. As a developing country, Turkey suffers from meeting the increasing demand on energy because of rapid industrialization and growth in population. To meet the demand on energy sufficiently, renewable energy sources should efficiently be handled. Furthermore scientists display bright prospects to renewable energy with research and development in our country. Nevertheless there are difficulties on betimes and rapid transferring RES to next generations, efficient education of RES and interest on education of RES.In this study, a questionnaire developed and applied to 14 universities to get the RES education level at universities in Turkey. The results analyzed in SPSS, statistical data analyses software. As a result of the analyses, between the all RES topics only geothermal, solar and wind energy sources given as master degree education. Other RES topics are only a part of engineering lessons in bachelors degree education. Education level is encyclopedical and lessons are in Turkish language. There are some difficulties in finding and using the education materials with their high costs. In Turkish universities, there aren?t any diplomas particularly for RES. As a consequence Turkey follows up renewable energy with engineering diplomas. Without having such a diploma, specialist labour in renewable energy is missing. This sort of education is considered as insufficient and should be broaden and strengthen.
- Published
- 2009
155. Modernization and Education in the Ottoman Empire
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ALKAN, Mehmet Ö.
- Subjects
Ottomanism,Turkish-Islamic Synthesis,Islamic-Turkish Synthesis,Turkism,Modern Educational Institutions,Modern Ottoman Educational Institutions ,Osmanlılık,Türk-İslâm Sentezi,İslâm-Türk Sentezi,Türkçülük,Modern Eğitim Kurumları,Modern Osmanlı Eğitim Kurumları - Abstract
This article evaluates the Ottoman modernization process and the heritage produced by this process and taken over by the Republican Period, by focusing on the history of education. Relying on the text books of the modern schools opened during the eras of Tanzimat, Abdulhamit II, Constitution II, and the Republic, it sets forth with its different aspects and in a comparative manner the “identity” that each era tried to construct. Other issues this article dwells on are Ottomanism, Islamic-Turkish Synthesis, Turkish-Islamic Synthesis, and the developments in the fields of schooling/modernization in this sub-periods dominated by nationalism
- Published
- 2008
156. 2007 Yılı Sivas / Haliminhanı – Hayranlı Kazısı
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Erkman, Ahmet Cem, Kaya, Ferhat, Bozca, Kutay Murat, Çeri, Özlem, Özkurt, Şakir Önder, Bedir, Adem, Güleç, Erksin, Alkan, Mehmet, and Pehlevan, Cesur
- Published
- 2008
157. Seismic tomograpy of Sakarya basin
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Alkan, Mehmet Akif, Yardımcı Doçent Doktor Günay Beyhan, Sakarya Üniversitesi, Fen Bilimleri Enstitüsü, Jeofizik Mühendisliği Anabilim Dalı, Jeofizik Mühendisliği, Beyhan, Günay, and Jeofizik Mühendisliği Anabilim Dalı
- Subjects
Kabuk hızı ,Earthquake ,1D sismik tomografi ,Geophysics Engineering ,Jeofizik Mühendisliği ,17 Ağustos 1999 depremi ,3Dsismik tomografi ,Tomography ,Seismology ,Modelling - Abstract
06.03.2018 tarihli ve 30352 sayılı Resmi Gazetede yayımlanan “Yükseköğretim Kanunu İle Bazı Kanun Ve Kanun Hükmünde Kararnamelerde Değişiklik Yapılması Hakkında Kanun” ile 18.06.2018 tarihli “Lisansüstü Tezlerin Elektronik Ortamda Toplanması, Düzenlenmesi ve Erişime Açılmasına İlişkin Yönerge” gereğince tam metin erişime açılmıştır. Anahtar kelimeler: 17 Ağustos 1999 depremi,1D sismik tomografi, 3D sismiktomografi, kabuk hızı, Sakarya baseniBu çalısmada, Sakarya havzası ve çevresine ait bölgenin 3 boyutlu hız modelininçıkarılması amaçlanmıstır. Afet ?sleri Genel Müdürlüğü Deprem Ars. Dairesi ileAlman Potsdam Üniversitesi ile ortak yürütülen ?Depremlerin ÖncedenBelirlenmesi Türk -Alman Ortak Projesi" Kapsamında KAFZ'nun Sakarya ? Boluilleri arasında kalan kesiminde kurulmus olan 14 adet sayısal ve 3 bilesensismometre ile 17 Ağustos 1999 depremi sonrasında 3000 den fazla art sarsıntıkaydedilmistir.Öncelikle bölgede daha önce yapılmıs çalısmalardan farklı hız modelleri alınmıs vebu hızlar ile bölgeyi tam olarak temsil edeceği düsünülen yeni bir hız yapısı eldeedilmistir. Hız yapısının elde edilmesinde, odaksal parametreler ile istasyondüzeltmelerinin hesaplanmasında, es zamanlı ve yinelemeli ters çözüm sağlayanVELEST yazılımı kullanılmıstır.Depremlerin seçiminde, doğru sonuçlar elde edebilmek için yüksek kalitelidepremler seçilmistir. Bu islem sonunda toplam 311 art sarsıntı seçilmis ve bölgeyeait 1-D P dalga hızı modeli elde edilmistir.Son olarak, elde edilen bu bir boyutlu hız modeli, üç boyutlu tomografik çözümyapabilen SIMULPS14 programında kullanılmak üzere düzenlenerek gerçek seyahatzamanı verileriyle birlikte tomografik ters çözüm islemi tamamlanmıs veTOMO2GMT programı yardımıyla üç boyutlu kesitler elde edilmistir. Bu kesitlerincelendiğinde, art sarsıntılar 0-16 km derinlikte meydana geldiği için, bu aralıktakikatmanlar, ters çözüm sonucu daha iyi belirlenebilmistir. Sonuç olarak; elde edilen1-D hız modeli ile bölgenin altı farklı hız katmanına sahip olduğu bulunmustur. Tümbu islemler sonucunda, bölgenin hız yapısı üç boyutlu olarak ortaya konularakjeolojisi ve tektoniği ile uyumluluğu değerlendirilmistir. Key words: 17 August 1999 Earthquake, 1-D seismic tomography, 3-D seismictomography, crustal velocity, Sakarya Basin.The aim of this thesis is to determine 3D velocity model of Sakarya Basin and itsvicinity. After 17 August 1999 Earthquake, more than 3.000 aftershocks wererecorded using 14 digital seismometers that were established to provide data for thearea between Sakarya and Bolu to use in ?The Prediction of Earthquakes Project?which was a co-project between General Directorate of Disaster Affairs and PotsdamUniversity. Since some earthquakes are not recorded at each station and some are outof this area, only selected recordings are used in this study.First, a new velocity structure that represents entire study area was produced byusing various velocity models in the previous studies. VELEST software whichproduces a simultaneously and iterative inverse solution, was used to derivevelocities, compute hypocentral parameters and station corrections.Afterwards, high quality data were selected to reach correct results. And 1D velocitymodel of P wave that belong to study area was derived. Finally, the derived 1Dvelocity model was arranged to use in SIMULPS14 that produce 3D tomographicsolution. In this manner, tomographic inverse solution process was completed byusing real travel time and 3D profiles were derived by using TOMO2GMT.Consequently, layers that lay on between 0 and 16 kilometres in the study area couldbe determined well than layers that lay on under the depth of 16 kilometres, sinceaftershocks occurred in this distance. The derived 1D velocity model shows the studyarea has six different velocity layers. The structure of velocity that belongs to studyarea was evaluated to determine whether it is compatible with geologic and tectonicstructure or not.
- Published
- 2007
158. Akhamenidler Dönemi'nde Perslerin Anadolu'da tapınak ilişkileri
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Alkan, Mehmet, Tekoğlu, Şeyhmus Recai, and Diğer
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Eski Çağ Dilleri ve Kültürleri ,Ancient Linguistics and Cultures - Abstract
ÖZETAkhamenidlerin genel din politikaları ve egemenlikleri altındaki ülkelerde yereltapınaklarla ilişkileri hakkında günümüze değin çeşitli çalışmalar yapılmış ve giderek artansayıdaki sempozyum, workshop ve monografilerle bu çalışmalara devam edilmektedir.Perslerin Anadolu'daki tapınak ilişkileri ve din politikaları henüz özel bir çalışmanın konusuolarak ele alınmamıştır.Persler Anadolu'yu yaklaşık iki yüzyıl hakimiyetleri altında tutmuşlardır. Bu süre içindeyerli ve Yunan tanrılarıyla tanıştılar ve bu dönem boyunca buradaki tapınaklarla yakınilişkiler kurdular. Bu tez bu ilişkilerin niteliğini araştırmak amacıyla seçilmiştir.Çalışmada temel kaynaklar olarak klasik eserler ve epigrafik belgeler kullanılmıştır. Antikmetinlerde yer alan tapınak ilişkilerine dair anlatımlar tarihsel olaylarla birlikte kronolojik birsıra içinde sunulmuştur. Yazıtlar ayrı bir bölümde incelenmiştir ve yazıtların tartışmalıkonularına ilişkin farklı modern görüşlerin hepsine yer vermeye çalışılmıştır.Antik kaynaklar, Perslerin kimi zaman bazı Yunan tapınaklarını tahrip ettiğini, kimi zamanda bu tapınakları onurlandırdıklarını göstermiştir. Tapınak yakma olayları nadiren savaşlardaya da ayaklanmalar sırasında gerçekleşmiştir. Bu eylemler yakılan tapınaklara karşı misillemeveya cezalandırma amacıyla ortaya çıkmıştır ve Persler bu davranışlarında dinsel bir baskıkurma ya da hoşgörüsüzlük niyeti taşımamışlardır. Bununla beraber, Persler yerli ve Yunantanrılarına adaklar adamışlar ve bu tapınaklarda çeşitli hizmetlerde bulunmuşlardır.Yazıtlar da aynı şekilde, Perslerin yerel kültlerin korunmasına ve gelişmesine katkıdabulunduklarını hatta bu kültleri benimseyip yerel tanrılar için kült merkezleri kurduklarınıgöstermiştir.Özetle, Persler Anadolu'da hiçbir zaman kendi dini inançlarını yerli halk üzerine baskıaracı olarak kullanmamışlar tersine dinsel hoşgörü politikası takip etmişlerdir. SUMMARYRELATIONS OF PERSIANS WITH TEMPLES IN ANATOLIA IN THE ACHAEMENIDPERIODVarious studies concerning religious policies of Achaemenids and their relations withtemples in the counturies captured by them have been worked so far and these studies arecontinued with increasing symposiums, workshops and monographs. Relations with templesand religious policies in Asia Minor had not yet been studied as subject of a particular work.Persians dominated Asia Minor more than two ceturies, during this period they confrontedlocal and Greek religion and contacted closely temples in Anatolia. This study aims to seeknature of these relations.In this study, classical sources and epigrafic documents were considered as main materialsof the research. The accounts of ancient writers regarding to relations with temples were givenin chronological order according to historical events. Inscriptions were examined in a chapterseparated and interpretations in dispute concerning the documents were gathered.Ancient sources revealed that Persians destroyed Greek temples and honored them. Theevents of destroying temples were occured rarely in battles and revolts. The purpose of theseoperations was retaliation or punishment and they did not intend to suppress foreign religions.However, Persians offered sacrifices to Greek and local gods and they serviced in the templesof these gods.Equally the epigrafic documents proved that Persians supported protection anddevolopment of local cults and also adopted them and founded cults for foreign gods whichthere were not in Persian pantheon.It may be concluded that Persian otorities did not force their believes on subject peoplesbut they followed the policies of religious tolerance. 60
- Published
- 2006
159. COĞRAFİ BİLGİ SİSTEMLERİNDE (CBS) AĞ ANALİZİ TEKNİKLERİYLE EMLAK VERGİ DEĞERLERİNİN TAKİBİ
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ALKAN, Mehmet, NİŞANCI, Recep, and YILDIRIM, Volkan
- Subjects
Emlak vergileri,Coğrafi Bilgi Sistemleri,Veri tabanı ,Real estate tax,Geographic Information Systems,Database - Abstract
Real estate tax is a very big resource for local authorities and central administrations in developed countries. On the other hand, because of lacking of legal legislation, applicators and communication between institutions, real estates having responsibility for tax and real estate values can not be determined. This lead to an important economical loss. Today, constitution of systems which allow taxpayers and related institutions to access real estate tax values optimally and minimize tax loss is possible via information technologies. In this study, minimum real estate values specified in district or street based were taken into consideration for tax. Then, a model was designed and a sample application was performed to control minimum declaration values. For this purpose, after linking road network and cadastral data, a database design was realized for real estates having responsibility for tax, Gelişmiş ülkelerde emlak vergileri (EV) yerel yönetimler ve merkezi idareler için önemli bir kaynak teşkil etmektedir. Ancak ülkemizde yasal mevzuat, uygulayıcılar ve kurumlar arası koordinasyon eksikliği, vergiye esas taşınmazların belirlenememesi, takip edilememesi ve taşınmaz değer karşılıklarının doğru olarak tespit edilememesine neden olmaktadır. Bunların sonucunda, önemli oranda ekonomik kayıp ortaya çıkmaktadır. Günümüzde bilgi teknolojileri yardımıyla vergi mükellefleri ve ilgili kurumların emlak vergi değerlerine optimal bir şekilde erişimi sağlayacak ve vergi kayıpları minimum seviyeye indirecek sistemlerin kurulması mümkündür. Yapılan bu çalışmada, Coğrafi Bilgi Sistemleri teknikleri kullanılarak, yasal mevzuatta bölge, cadde veya sokak bazında belirlenen asgari emlak vergi değerlerinin taşınmazlara yansıtılması ve asgari beyan sisteminin kontrolü amacıyla bir model tasarlanarak örnek bir uygulama yapılmıştır. Bu amaçla yol ağı ile kadastral veriler ilişkilendirilerek vergiye esas taşınmazlar için bir veri tabanı (VT) tasarımı gerçekleştirilmiştir
- Published
- 2006
160. Kuzey Anadolu Fayı Bolu-Çorum Segmenti Boyunca Yer Kabuğu Hareketlerinin GNSS Yöntemiyle İzlenmesi.
- Author
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Aladoğan, Kayhan, Tiryakioğlu, İbrahim, Yavaşoğlu, Hakan, Alkan, Reha Metin, Alkan, Mehmet Nurullah, Köse, Zafer, İlçi, Veli, Ozulu, İbrahim Murat, Tombuş, Fazlı Engin, and Şahin, Murat
- Published
- 2017
- Full Text
- View/download PDF
161. Microtremor exploration for shallow S-wave velocity profiles at stations in local strong motion network in Bursa, Yalova, and Kocaeli in north-western Turkey.
- Author
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Tuna Özmen, Özgür, Hiroaki Yamanaka, Kosuke Chimoto, Çeken, Ulubey, Akif Alkan, Mehmet, Tekin, Kudret, and Ate¸s, Erkan
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SHEAR waves ,KINETIC energy - Abstract
We conducted microtremor array surveys for shallow S-wave velocity profiles at 20 sites in Bursa, Yalova and Kocaeli provinces in the north-western part of Turkey to provide fundamental data to assess the seismic hazard in the area. All of the measurement sites were positioned very close to strong motion stations belonging to the Disaster and Emergency Management Presidency of Turkey (AFAD) in order to further understand site amplification factors in strong motion records. Of the 20 study sites, two were located in Yalova, four in Bursa and 14 in Kocaeli. We temporarily installed two small arrays to obtain simultaneous records of vertical microtremors. Then, the spatial autocorrelation method was applied to retrieve Rayleigh wave phase velocity curves in a frequency range from 1 to 30Hz from the array records. The phase velocities in the western part of the Kocaeli area are low across a wide frequency range, while relatively high phase velocities are found in the eastern part of the Kocaeli province. The phase velocities in the Yalova and Bursa provinces are widely distributed suggesting large variations in soil conditions. The observed phase velocity curve at each site was inverted to a one-dimensional (1D) S-wave velocity profile to a depth of 100 m, using a hybrid heuristic inversion method. All the S-wave velocity profiles in the eastern Kocaeli area are similar; however, the sites in the western Kocaeli and Yalova-Bursa areas have profiles with different features from the others. Finally, we discuss amplification factors for S-waves using the inverted profiles. The dominant fundamental periods of the amplification factors were distributed in a frequency range from 0.7 to 5 Hz. The profiles obtained are also used tomapaverage S-wave velocities in the study area, with an addition of existing data at strong motion stations of the AFAD. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
162. Microtremor Array Measurements for Shallow S-Wave Profiles at Strong-Motion Stations in Hatay and Kahramanmaras Provinces, Southern Turkey.
- Author
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Özmen, Özgür Tuna, Hiroaki Yamanaka, Alkan, Mehmet Akif, Çeken, Ulubey, Öztürk, Taylan, and Sezen, Ahmet
- Abstract
We conducted microtremor array exploration of shallow S-wave velocity profiles at 28 sites in Hatay and Kahramanmaras, in the southern part of Turkey, to provide fundamental data to assess seismic hazards in the two areas. A total of 16 and 12 sites were located in Hatay and Kahramanmaras Provinces, respectively. We temporarily installed two small arrays to obtain simultaneous records of vertical microtremors. The spatial autocorrelation method was applied to retrieve Rayleigh-wave phase velocity in a 1-30 Hz frequency range. The phase velocities at most of the sites in Kahramanmaras Province were high in the entire frequency range, whereas those in Hatay Province were widely distributed, suggesting significant variation in soil conditions. Low-phase velocities were identified at sites near the coast in Hatay. Subsequently, the phase velocity observed at each site was inverted to a 1D S-wave velocity profile to a depth of 100 m using a hybrid heuristic inversion. Most of the profiles in Kahramanmaras had very thin near-surface layers with S-wave velocities of less than 300 m/s and thicknesses of less than 10 m. The top layers at the sites in Hatay showed significant variation, with different S-wave velocities from 110 to 760 m/s and thicknesses from 2 to 40 m. These layers were thicker at the sites near the coastal area. We finally discuss amplification factors of S waves using the inverted profiles. The fundamental predominant periods of the amplification factors distributed across a wide frequency range from 0.8 to 10 Hz in Hatay. The peak frequencies concentrated in a high-frequency range of more than 5 Hz in Kahramanmaras. The profiles observed were used to map average S-wave velocities in the top 30 m at strong-motion stations. [ABSTRACT FROM AUTHOR]
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- 2017
- Full Text
- View/download PDF
163. Abdülkâdir-i Belhî'nin Sunûhât-ı İlâhiyye Mesnevîsi ve A. Gölpınarlı'nın manzum Türkçe çevirisi
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Alkan, Mehmet Hilmi, Öz, Yusuf, and Diğer
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Eastern Linguistics and Literature ,Doğu Dilleri ve Edebiyatı - Abstract
ÖZET önemli bir şahsiyet ve on dokuzuncu yüzyılda, bir başka ifadeyle Osmanlı'nın son dönemlerinde yaşayıp tasavvuf sahasında Farsça eser veren son mutasavvıf şair özelliğini taşıyan Seyyid Abdükâdir-i Belhî Efendi'nin, mesnevi tarzında kaleme aldığı `Sunûhât-ı İlâhiyye ve İlhâmât-ı Rabbâniye` adlı eseri incelenerek, çalışmaya konu olması cihetiyle eser ve müellifi hakkında bir takım inceleme ve araştırma yapılmıştır. Öncelikle, eserin müellifi Seyyid Abdülkâdir-i Belhî Efendi ve babası Seyyid Süleyman Belhî Efendi'nin diğer aile fertleri ile birlikte Afganistan'dan İstanbul'a gelişlerinin nedenleri ve geldikten sonra, hayatta kaldıkları süre içerisinde İstanbul'daki yaşamları, gerekli bilgi, belge ve kaynaklardan yola çıkılarak ele alınmıştır. Bu çalışmada, Sunûhât-i İlâhiyye ve llhâmât-i Rabbâniyye'nin Farsça metninin edisyon kritiği yapılmış; kaynaklardaki bilgilere ilâve olarak, Belhî ailesinin değerli mensuptan hakkında yeni bilgi ve belgelere ulaşılmıştır. Bu aileden özellikle Abdülkâdir-i Belhî'ye önem vererek onun bazı eserlerini özetle istinsah ve bazısını da tercüme eden değerli ilim adamı Abdülbâki Gölpınarlı'nın da bugüne kadar bilinmeyen ve değerlendirilmeyen Sunûhât-ı İlâhiyye tercümesi de, bu sahayla ilgili olanların dikkatine sunulmuştur. Ayrıca bu çalışma vesilesiyle Belhî ailesinin bugün hayatta olan fertlerine ulaşılmış ve bazı bilgiler aktarılmıştır. Seyyid Abdülkâdir-i Belhî ve Abdülbâki Gölpınarlı ile ilgili olarak ayn ayn bölümlerde bilgiler verilmiş, daha sonra ise Abdülbâki Gölpınarlı'nın Belhî ailesi ile aralarındaki münasebetleri üzerinde durulmuştur. Abdülbâki Gölpınarlı'nın Seyyid Abdülkâdir-i Belhî Efendi'ye olan muhabbeti ve eserleri üzerinde yaptığı çalışmalar ortaya konmuştur. ABSTRACT Being an Otoman sufi and poet who came originally from Balhk 'Abd al-Qader Balkî was born at Khanqah, one of the villages of the city of Qondoz. His father was Sayyed Solaymân Hosaynî an important personage of the sâdât-e Hosayniya. The genealogy of the Solaymân Balkhi family is based on Burhan al-Dîn Kılıç known as `sovereign`, `Sultân of the Ozkand` and `Turk sheikh from Fargana` and who lived in the ll`1 century. The Solaymân Balkhi family with a crowded convoy formed by the Uzbeks from Balkh, Kunduz and Badahshan and the Turcomans, came from Afganistan to Bagdhad through Iran and settled in Istanbul upon the invitation of the Otoman sultan Abd al- Aziz in 1861. Sayyed Solaymân, and his sons Abd al-Qader and Burhan al-Din Balkhi are the most important persons of the Balkhi family. In Istanbul Abd al-Qader-e Balkhi was given the position of shaikh in Shaikh Murâd al-Buhâri Tekye. After occupying this position for ten years he died on 23 Rajab 1341 (15 March 1923). The Works of Abd al-Qader are all written in Persian. Of his Divan, which is rather large in size, contains his Turkish and Persian poems and his seven matnavi are much more important from the point of wiev of mysticism than for their literary value. 307
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- 2005
164. Çorum Organize Sanayi Bölgesi afet bilgi sistemi altyapısının oluşturulması
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Alkan, Mehmet Nurullah, Şahin, Muhammed, and İnşaat Mühendisliği Ana Bilim Dalı
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Jeodezi ve Fotogrametri ,Geodesy and Photogrammetry - Abstract
ÇORUM ORGANİZE SANAYİ BÖLGESİ AFET BİLGİ SİSTEMİ ALTYAPISININ OLUŞTURULMASI ÖZET Ülkemizde sık aralıklarla meydana gelen doğal afetlerin insan hayatını ne kadar etkilediği açıktır. Bu tür afetlerin nasıl önlenebileceğine yada olduktan sonra nasıl müdahale edilebileceğine dair bir planlama yapılması gerektiği de açıktır. Her türlü afetin önceden tahmin edilebilmesi, bunlara ilişkin tedbirlerin alınması, afetin oluşumundan sonra da yapılabilecek bütün faaliyet planlamalarının yapılması hayati önem taşır. Günümüzde gelişen teknoloji ile birlikte afet öncesinde yada sonrasında yapılabilecek faaliyetlerin planlaması daha kolay ve hızlı bir şekilde yapılabilir. Bütün bu faaliyetlere Afet Yönetimi'nin içerisinde göz atmak mümkün olabilir. Afet Yönetimi için en önemli unsurlar mevcut durumda bölgeden toplanabilecek bilgilerin geçerli ve doğru olması, bunların gelecek için güncellenebilir hale getirilmesi, bunun yanı sıra elde edilen bu bilgilerin doğru bir şekilde değerlendirilmesidir. Bütün bu aşamalarda en önemli bilgi toplama kaynağımız günümüzde klasik ölçme yöntemlerinin yanı sıra GPS ölçmeleri ve uzaktan algılama yöntemiyle elde edilen sonuçlardır. Bu bilgilerin değerlendirilmesi ve kullanılabilir hâle getirilebilmesi içinde Coğrafi Bilgi Sistemi(CBS) kapsamında ele alınması gerekir. CBS ile eldeki verilerin değerlendirilmesi, çeşitli sorgulamalar yapılması ve bunlara dayalı olarak planların oluşturulması ve bir afet yönetimi bilgi sistemi için gerekli bilgiyi verebilmesi mümkün olabilecektir. Bu çalışmada Çorum Organize Sanayi Bölgesi için bir afet yönetimi altyapısının nasıl oluşturulabileceği ve eldeki veriler ışığında ne tür planlamalar yapılabileceği açıklanmıştır. Ayrıca ne tür afetlerin oluşabileceği ile ilgili bazı tahminler yapılmış ve bunlarla ilgili varsayım ve önerilerde bulunulmuştur. ıx CONSTITUTION OF DISASTER INFORMATION SYSTEM INFRASTRUCTURE IN CORUM ORGANIZED INDUSTRIAL ZONE ABSTRACT It is clear that the disasters effecting the human life often occur in our country. Planning of precautions is vital important before or after disasters. It is also vital to estimate any kind of disasters, precautions and interfere operations and planning after the disasters. Nowadays, it is possible to plan the activities more easily and quickly before or after the disasters with theimproving technology. All of these operations may be included in the Disaster Management systems. The most important components for a Disaster Management are the collection of the information through the environment of the planning zone, to make these information updateble, and also a true analysis of them. In all of these phases the most important data collection mechanisms are the classical surveys with GPS and remote sensing. Also, Geographic Information Systems(GIS) are the key systems to make these information useful. Evalution, producing new querries, planning according to these factors and gathering information about the Disaster Management are possible during GIS phases. This study explains how to establish an infrastructure and how to make a plan using the available data for the Coram Organized Industrial Zone (OSB). In addition, possible disasters and hypothesis and suggestions that can affect the region in the future are presented. 112
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165. Silahlı kuvvetlerin yurt dışında kullanılması
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Alkan, Mehmet, Şimşek, Oğuz, Kamu Hukuku Ana Bilim Dalı, Kamu Hukuku, Oğuz Şimşek, and Sosyal Bilimler Enstitüsü
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Defense and Defense Technologies ,Savunma ve Savunma Teknolojileri - Abstract
Silah, savas, asker, düzen, kural insanoglunun hayatinda hep varola gelmiskavramlardir. Bu tezde belirtilen kavramlar ve aralarindaki iliskinin irdelenmesi ilebaslanmistir.Konuya daha sonra 1945'de baslayan yeni Dünya düzeninin sembolü olan BirlesmisMilletler çerçevesinden bakilmistir. Uluslararasi mevzuatin ortaya konmasindan sonra konuulusal mevzuat bakimindan incelenmistir. Bu kapsamda Türkiye Cumhuriyetinin katildigiKore ve Kibris baris harekatlarinin T.B.M.M.'nin ve kamuoyunun gündeminde ne sekildegörüsüldügü arastirilmistir.Hükümet ve muhalefetlerin ayni fikirde olmasi pek mümkün olmadigindan geçmiszaman içinde konu yüksek yargiya intikal etmis ve konu son olarak AnayasaMahkemesinin kararlari dogrultusunda incelenmistir. Guns, war, army, order and rule has been existing in human life. In this theis theseconcepts and their relations between them has been examired.These concepts have benn defined within the rules of the UN which is the symbol ofthe New World Order since 1945.After examing the international law, the subject has been studied according to thenational law. Turkey involed in Korean and Cyprus peace operations. Reggarding to thesissubject, the way of discussions ins the Turkish Parliament and public about these oparationshave been examined.As the governments and the opposition parties can not agree on the same idea, theseitems became court cases and the subject has also examined from the juridical point. 119
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- 2005
166. Constitution Of Disaster Information System Infrastructure In Corum Organized Industrial Zone
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Alkan, Mehmet N., Şahin, Muhammed, Jeodezi ve Fotogrametri Mühendisliği, and Geodesy and Photogrametry Engineering
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Afet Yönetimi ,Gographical ,Turkey Disaster Information System ,Coğrafi Bilgi Sistemi ,Türkiye Afet Bilgi Sistemi ,Disaster Management - Abstract
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2005, Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2005, Bu çalışmada, Çorum Organize Sanayi Bölgesi’nde bir afet yönetimi bilgi sistemi altyapısı oluşturulmuştur. Bunun yanı sıra bölge genelinde doğal, teknolojik ve insan kaynaklı afetlerin gerçekleşmesi olasılıkları da incelenmiş ve bunlarla ilgili varsayım ve önerilerde bulunulmuştur. Ayrıca, bölge genelinde toplanan bütün veriler ışığında çeşitli planlamalar yapılmıştır. Gelecekte bu sahada yada bölge genelinde yapılabilecek afet yönetimi bilgi sistemi çalışmalarında da kullanılabilecek bir örnek projede oluşturulmuştur., In this study, infrastructure of a disaster management information system in Corum Organized Industrial Zone is formed. Also, probabilities of natural, technological and human-made disasters and hypothesis and suggestions are presented. Also, different plans are constructed according to the datas collected from all over the region. A sample work for a possible disaster management information system in this region or all over the zone is presented that would be made in the future., Yüksek Lisans, M.Sc.
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- 2005
167. Tapu ve kadastro verilerine yönelik zamansal coğrafi bilgi sistemi tasarımı
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Alkan, Mehmet, Cömert, Çetin, and Jeodezi ve Fotogrametri Mühendisliği Anabilim Dalı
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Jeodezi ve Fotogrametri ,Geodesy and Photogrammetry - Abstract
ÖZET Türkiye'de arazi, arsa, bina gibi taşınmazların hukuki durumları, Tapu Sicil Müdürlükleri'nin kontrolündeki `Tapu Sicili verileri` ve Kadastro Müdürlükleri 'nin kontrolündeki `Kadastro bilgileri` ile tanımlıdır. Taşınmazların tapu ve kadastro (TK) verileri sürekli değişmekte ve bu bilgiler geleneksel yöntemle arşivlenmektedir. Ülkemizde, TK verilerinin zamansal analizlerine, yargı, birçok kamu kurum ve kuruluşu, belediyeler, özel sektör ve vatandaşlar tarafından ihtiyaç duyulmaktadır. Bu ihtiyaç, geleneksel TK sistemiyle karşılanmaya çalışılmaktadır. Bu ihtiyaca rağmen, ülkemizde zamansal TK verilerine duyulan ihtiyacın tespiti ve bu ihtiyaca yönelik herhangi bir sistem tasarımı gerçekleştirilmemiştir. Bu çalışmada, TK bilgilerinin zamansal analizlerine duyulan ihtiyacın belirlenmesi ve bu ihtiyaca yönelik bir sistem tasarımı gerçekleştirilmiştir. İhtiyacı belirleme kapsamında, zamansal TK bilgilerine ihtiyaç duyan kurum ve kuruluşlar belirlenmiştir. Ayrıca geleneksel TK sisteminin belirlenmesi amacıyla Tapu Sicil ve Kadastro Müdürlüklerinin mevcut yapısı incelenmiştir. Belirlenen ihtiyaç kapmasında, tapu verilerine yönelik veri tabam tasarımı yapılmıştır. Kadastro verilerine yönelik olarak ise, literatürde önerilen bir zamansal coğrafi bilgi sistemi veri modeli seçilmiştir. Daha sonra tapu ve kadastro verileri birbirleriyle ilişkilendirilmiştir. Bu ilişki tasarlanan ve uygulanan arayüz yazılımları ile gerçekleştirilmiştir. TK bilgilerinde değişiklik meydana getiren satış, ifraz, ipotek, cins değişikliği gibi TK işlemleri, TK bilgilerinin zamansal analizleri, güncel analizler, interaktif zamansal sorgulamalar da tasarlanan ve gerçekleştirilen arayüz yazılımları yardımıyla gerçekleştirilmiştir. Tasarlanan sistem ile, zamansal TK verileri hızlı ve doğru olarak elde edilebilecektir. e-Türkiye boyutunda tasarlanan sistem zamansal TK verilerine ihtiyaç duyan kurum ve kuruluşların verilere internet üzerinden ulaşmasını sağlayacaktır. Ayrıca, Tapu ve Kadastro Genel Müdürlüğü kurumlara göre belirli yetkilendirmelerle zamansal TK verilerini sunacak ve belirli bir ücretlendirme ile de ekonomik kazanç sağlayacaktır. Anahtar Kelimeler : Tapu ve Kadastro Verileri, Zamansal Coğrafi Bilgi Sistemleri, Zamansal Analiz, Tapu ve Kadastro İşlemleri VII SUMMARY The Design of a Temporal Geographical Information System for Deed and Cadastre Data In Turkey, land information representing the legal status of real properties such as land, building-plot and building has two main components; one is the geometrical component (Cadastre) and the other is the ownership information (Deed). Deed and cadastre (DC) data is dynamic. These data have been updated conventionally. In our country, the temporal analysis of DC data is needed by jurisdiction, many public foundations and institutions, municipalities, private sector and citizens. This need has long been tried to be met by conventional DC systems. In spite of this need, in Turkey, determination of the need for temporary DC data or any system design devoted to this need have not been realized yet. In this study, determination of the need for temporal analysis of DC data and a system design devoted to this need were realized. In the context of need determination, foundations and institutions needing DC data were determined. Besides, the current structure of Register of Deeds and Cadastre offices were examined to determine the conventional DC system. In the context of determined needs, a database design concerning deed data was realized. As for, cadastral data, a temporal geographical information system data model suggested by the literature was chosen. Afterwards, deed and cadastre data were linked. This linkage process was realized via some interfaces designed and implemented within this study. DC processes (e.g. sale, subdivision, mortgage and type changes change) causing changes in DC data, temporal analysis of DC data, some non- temporal or timely analysis and interactive temporal quarries were also realized using these interfaces. With the designed system, temporal DC data can be obtained quickly and precisely. In the context of e-Turkey, the designed system will provide the retrieval of DC data on the internet for the foundations and institutions in need of this data. In addition to this, TKGM will serve temporal DC data and gain some economical benefits with an authorization arrangement for some foundations and with a suitable charging policy. Keywords: Deed and Cadastre Data, Temporal Geographic Information Systems, Temporal Analyses, Deed and Cadastre Processes VIII 181
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168. Gogol's Overcoat: Tarik Zafer Tunaya and 'Political Parties'
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ALKAN, Mehmet Ö.
- Abstract
This article aims to present the place of Tarık Zafer Tunaya within the Turkish Political History. There is no doubt that the personality and the works of Tunaya has been very influential in the development of an intellectual generation that included, among others, leading academicians like Mete Tunçay, Zafer Toprak, Sina Akşin and Şükrü Hanioğlu. This article gives not only a summary of Tunaya's life story, but also the background of his academic studies.
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- 2004
169. Le Non-conformisme dans I'ceuvre romanesque de Boris Vian
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Alkan, Mehmet, Özmen, Kemal, and Fransız Dili ve Edebiyatı Anabilim Dalı
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Fransız Dili ve Edebiyatı ,French Linguistics and Literature - Abstract
11 ÖZET «Boris Vian'ın romanlarında `non-conformisme`» başlıklı çalışmamızda, iki savaş arası dönem Fransız edebiyatında ideolojilere, felsefi ve edebi akımlara karşı mesafeli tavrıyla tanınan ve bu nedenle belli bir gruba sokulamayan yazar Boris Vian'ın mevcut değerler ve kurulu düzen karşısında sergilediği reddedici ve yıkıcı tutumu çeşitli yönleriyle incelemeye çalıştık. Altı roman çerçevesinde incelemeye çalıştığımız bu `non-conformiste` tavrın kökeninde öncelikle, kilise ve militarizm karşıtı burjuva bir ailede yetişen yazarın muhalif, dahası başına buyruk mizacının yer aldığını gözlemledik. Birey özgürlüğünü ve mutluluğunu ön plana çıkartan yazarın başta varoluşçuluk olmak üzere her türlü kolektif anlayışın dışında bir çıkış yolu aradığını ve yalnızca düşsel ve düşünsel özgürlüğü savunan `Patafizik` adlı grupla bir gönül bağı kurduğunu ve bireyciliği ise bir yaşam ve varoluş biçimi olarak benimsediğini gördük Bireyi yok sayan ve onun yaratıcılığını sınırlandıran burjuva düzeninin değerlerini alaya almak ve sarsmak amacıyla yazar, çeşitli yıkıcı yöntem ve araçlara başvurmaktadır; yerici ve saldırgan bir mizah, şiddet ve erotizm sahneleri bu bakımdan bize, çağın kötülüklerini teşhir etmek ve genel kabul gören değerlere karşı duyulan antipatiyi dile getirmek amacıyla kullanılan etkili araçlar olarak göründü. Bu araçların yanı sıra, sunduğu geniş olanaklarla dil de, yazarın kurumlara, konformist alışkanlıklara ve bunların biçimlendirdiği gündelik yaşama karşı gösterdiği şiddetli eleştiride önemli bir rol oynamaktadır; hiçbir zaman eylem adamı olmayı aklından geçirmeyen Vian toplumun alışılagelmiş algı ve düşüncelerini tersyüz etmek ve yıkmak için sözcüklerin gücüne başvurur. Bu yönüyle dil hem mevcut düzeni yıkmak, hem de onun yerine düşsel ve yeni bir dünya yaratmak için en uygun araçtır yazar için.Ill Tüm bu eleştiri yöntem ve araçlarının hedefinde din, militarizm, aile, yönetim, iş hayatı ve edebiyat dünyası gibi toplumsal kurumlar ve alanlar yer almaktadır; kuralları ve gerekleriyle topluma körü körüne inanmayı emreden din anlayışının yararsız, toplumsal sistemlerin gücünün ise özlediği bir yönetim biçimini oluşturmak için yetersiz olduğuna inanan yazar birey özgürlüğünü sınırlayan iş yaşamına karşı da özel bir duyarlılık göstermektedir. Ailenin hem toplumsal, hem de bireysel mutluluk için kaçınılmaz olduğunu düşünen yazarın bu kuruma yönelik eleştirisi özellikle aşırılıklar ve eksiklikler üzerinde yoğunlaşmaktadır. Vian'ın kimi kez ironi yoluyla, kimi kez karikatürleştirme biçiminde ortaya koyduğu bu eleştirel tavır edebiyat söz konusu olduğunda parodi biçiminde kendini gösterir. Tüm sorgulayıcı, sarsıcı ve yıkıcı yönüne karşın Boris Vian'ın `non- conformisme`inin pozitif ve hümanist bir özelliğe sahip olduğunu gördük; şiddet, yıpranma, ölüm gibi dünyamızın tanıdık olgularını içinde barındıran bir evren ile, doğaüstü özelliklerle donatılmış, bilim-kurguyla, müzikle ve kişilerin özgün giyim-kuşam ve davranışlarıyla rahatlatıcı, sakinleştirici güce sahip düşsel bir dünyanın, başka bir deyişle, çocuk gözüyle ve çocuksu bir dille çizilmiş harikalar diyarının bir arada olması, yalnızca yazarın yaşama sevincini ve hayal gücünün zenginliğini değil, aynı zamanda onun `non- conformisme` nin özgünlüğünü ve içtenliğini de ortaya koymaktadır. IV SOMMAIRE Cette âtude intitulee « Le non-conformisme dans l'oeuvre romanesque de Boris Vian », aborde les divers aspects du refus que l'auteur français de l'entre-deux-guerres manifeste vis-â-vis des mouvements d'ordre idaologique, religieux, philosophique, litteraire, somme toute, des valeurs du monde bourgeois. Cette distance, voire âcart râflâchi se trouve marquee par la belle humeur vagabonde de l'auteur âlevâ dans l'atmosphâre sterile d'une famille bourgeoise, anticlâricale et antimilitariste. Le grand mepris des ideologies qui domine le domicile des Vian contribuera beaucoup â la formation de cette vision foncierement dâsengagâe de l'auteur. Nourri des procâdâs provocants du surrealisme et de certains aspects de I'existentialisme des annâes 1940, Vian ne s'alliera pourtant â aucun autre groupe ou mouvement litteraire ou philosophique qu'a celui de la `pataphysique` jarryesque qui reste pour lui comme un cas particulier et exceptionnel dans raffirmation de son individuality et dans sa quate continue du bonheur personnel. Pour tourner en derision les valeurs etablies de I'ordre bourgeois qui nient et asservissent l'individu, l'auteur a recours volontiers â certains procâdâs destructeurs tels le comique, le dâdoublement, la violence, l'illogisme et l'ârotisme qui apparaissent comme des moyens de conversion les plus efficaces pour dânoncer les vices de son apoque, d'oCı sa râpulsion catagorique des râfârences communes. Aupres de ceux-ci, le langage aussi lui sert de support dans ses attaques contre les institutions, les habitudes conformistes et notamment le quotidien ; Vian qui n'est jamais pourtant un homme d'action au sens idaologique du mot brise et bouleverse par le biais des mots, par la toute specificite de la parole individuelle les perceptions habituelles tant linguistiques que sociales. Le langage se montre â cet âgard comme le moyen le plus approprie â ses fins pour dâfaire un monde et en refaire un nouveau fonda sur I'imagination individuelle.Tous ces procâdâs et moyens critiques prennent pour cible les institutions sociales, la religion, Parmâe, la famille, I'administration, la vie du travail et le monde des lettres; convaincu de Pinutilite d'une religion aux pratiques anodines qui commande une obeissance servile, de la deficience de la capacite novatrice des systemes sociaux, litteraires ou philosophiques, et des astreintes penibles de la vie du travail, forme d'esclavage moderne, qui aliâne I'individu, Vian se montre pourtant plus modâre quant â la critique de la famille qui reste limitee aux exces et aux faiblesses. Cette attitude critique manifestee par la voie de Pironie et de la caricature tend â utiliser la parodie quand il est question de la litterature. Si dânonciateur et subversif qu'il soit, le non-conformisme vianesque comporte neanmoins un cote positif et hümaniste: la co-existence de deux mondes conflictuels dont le premier comporte les faits, tels la violence, I'usure et la mort qui nous sont bien familiers et dont le deuxieme qui, par le merveilleux, la musique, et les comportements originaux des personnages, nous euphorise, reflete non seulement Pamour de la vie et Pelan de Pimagination de Pauteur mais encore Pauthenticit? et Poriginalite de son non- conformisme. 159
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- 2004
170. Some Isaurian and Lycaonian inscriptions in the museum of Karaman
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Alkan, Mehmet, primary
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- 2014
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171. Contribution of Normalized DSM to Automatic Building Extraction from HR Mono Optical Satellite Imagery
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Sefercik, Umut Gunes, primary, Karakis, Serkan, additional, Bayik, Caglar, additional, Alkan, Mehmet, additional, and Yastikli, Naci, additional
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- 2014
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172. Hürriyet gazetesinde yayınlanmış müzik yazıları açıklamalı bibliyografyası (1948-1980)
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Alkan, Mehmet Şükrü, Şenel, Süleyman, and Diğer
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Hürriyet newspaper ,Bibliography ,Müzik ,Newspapers ,Music ,Article - Abstract
ÖZET Sedat Simavi tarafından kurulan ve ilk kez, 1 Mayıs 1948'de yayınlanan Hürriyet Gazetesi, yarım yüzyılı aşan bir süredir aralıksız sürdürdüğü yayıncılık anlayışı ile, gerek emsalleri arasında ve gerekse toplum nazarında büyük saygınlığı olan önemli bir basın-yayın organıdır. Yayın hayatına girdiği yıllarda, okuma yazma oram çok düşük olan Türkiye'de, günlük yazılan ve haberleri, halkın anlayacağı kadar basitleştiren ve sayfalarını resimlerle süsleyerek kısa sürede büyük tirajlara ulaşan Hürriyet Gazetesi, çoğunlukla fikir gazeteciliği yapan emsallerinin arasından, kendisini sürekli yenileyen yayıncılık anlayışı ile sıyrılarak günümüze kadar ulaşmıştır. Dünyanın hemen her ülkesinde olduğu gibi, ülkemizde de, günlük olayların yarınlara aktarılmasında en önemli misyonlardan birini üstlenen gazetelerin sayfalan, toplum hayatının hemen-hemen her unsuruna dayalı haber ve yorumlan banndırmakta ve okuyucusunun haber alma irade ve özgürlüğüne büyük hizmetler vermektedir. Ve bu sayfalar, şüphesiz çok çeşitli konulan içermektedir. Toplumun nabzını tutan konuların başında da musiki gelir. Ve, vazgeçilmez konular arasında yer alan musiki konusu: kimi zaman gazete sayfalarının kıyısında, köşesinde yer alan, adi bir haber; kimi zaman, manşetlere yükselen bir başlık; kimi zaman bir reklam, kimi zaman bilimsel bir makale, kimi zaman da bir konser kritiği olarak okuyucu karşısına çıkar. Hürriyet gazetesinin, yanm yüzyılı aşan bir sürede zarfında, yirmi bine yaklaşan yayın sayısı içerisinde, sayısı binleri aşan musiki başlıklı yazıya rastlanılır ve bu musiki yazılan, muazzam bir koleksiyon hüviyetine çoktan ulaşmış konumdadır. Hürriyet Gazetesi ile beraber, yayında olan daha pek çok gazetenin yayın periyodu içerisinde, yayınlanan genel musiki yazılanm hesaba kattığımızda ise, bu sayının, on binleri aşmakta olduğu kolayca anlaşılır. Bu yayınlann kültür-sanat camiasına bir bibliyografik kaynak halinde sunulması ve kataloglannın hazırlanması kaçınılmaz bir zaruret olmuştur. Bu düşünceler, bu bibliyografik çalışmanın yapılmasında başlıca etkendir. Ancak, hemen belirtelim ki, Hürriyet gazetesinin sayfalan arasında kalan söz konusu yazılann bilim ve sanat erbabının hizmetine sunulacak hale getirilmesi büyük zorluklar da içermektedir ve bu tez, 53 yıllık yayın periyodunun yaklaşık 33 yıllık boyutu içinde yer alan musiki yazılanm bir araya getirmekte; okuyucunun ve bilim- sanat camiasının hizmetine sunmayı amaçlamaktadır. iv SUMMARY The Hürriyet Newspaper, which was founded by Sedat SİMAVİ, and first broadcast on 01 May 1948, is a very significant media organ with regard to its half century uninterrupted broadcasting life as well as its esteem among its counterparts and within the public. Considering that the reading and writing rate in Turkey was very low when it first stepped into the broadcasting life, the Hürriyet Newspaper simplified daily articles and news and adorned its pages with pictures to create a large circulation and therefore survived today, although many of its counterparts at that time, which were mostly propagating ideas, failed. The newspaper pages, like in many other countries in the world, have undertaken one of the most important missions to transmit the daily events to the future generations. They include news and interpretations related to atmost all issues of the public life and serve its reader to freely get the news according to his/her wills. And, it is for sure that those page would deal with many issues. Music is among the most important subjecks, may be an advertising, or may be a scientific paper or a concert critic. The broadcasting life of Hürriyet, which already surpassed half a century and 20.000 issues, includes thousandsof music related news have already become an enormous collection. When we take into account the music news in many other media along with Hürriyet, it could be well seen that we are talking of tens of thousands of news. Such news should be made available to the culture and art society in a format of bibliographical resource and catalogs should be prepared. Such thoughts are primary drive for this bibliographical study. But it scould be noted that, it is very difficult to put such news from the pages of Hürriyet into a form that the science and art society would make use of, and this thesis compile the music related news during the 33 of a total 53 years of Hürriyet's broadcasting life with the aim to offer such information for the use of science and art society. 281
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- 2001
173. DEM generation with worldview-2 images
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Shortis, M., El-Sheimy, N., Buyuksalih, Gurcan, Baz, I., Alkan, Mehmet, Jacobsen, Karsten, Shortis, M., El-Sheimy, N., Buyuksalih, Gurcan, Baz, I., Alkan, Mehmet, and Jacobsen, Karsten
- Abstract
For planning purposes 42km coast line of the Black Sea, starting at the Bosporus going in West direction, with a width of approximately 5km, was imaged by WorldView-2. Three stereo scenes have been oriented at first by 3D-affine transformation and later by bias corrected RPC solution. The result is nearly the same, but it is limited by identification of the control points in the images. Nevertheless after blunder elimination by data snooping root mean square discrepancies below 1 pixel have been reached. The root mean square discrepancy at control point height reached 0.5m up to 1.3m with a base to height relation between 1:1.26 and 1:1.80. Digital Surface models (DSM) with 4m spacing have been generated by least squares matching with region growing, supported by image pyramids. A higher percentage of the mountainous area is covered by forest, requiring the approximation based on image pyramids. In the forest area the approximation just by region growing leads to larger gaps in the DSM. Caused by the good image quality of WorldView-2 the correlation coefficients reached by least squares matching are high and even in most forest areas a satisfying density of accepted points was reached. Two stereo models have an overlapping area of 1.6 km times 6.7km allowing an accuracy evaluation. Small, but nevertheless significant differences in scene orientation have been eliminated by least squares shift of both overlapping height models to each other. The root mean square differences of both independent DSM are 1.06m or as a function of terrain inclination 0.74m + 0.55m * tangent (slope). The terrain inclination in the average is 7 degrees with 12% exceeding 17 degrees. The frequency distribution of height discrepancies is not far away from normal distribution, but as usual, larger discrepancies are more often available as corresponding to normal distribution. This also can be seen by the normalized medium absolute deviation (NMAS) related to 68% probability level of 0.83m bei
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- 2012
174. Boris Vian'ın romanlarında yıpranma sorunu
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Alkan, Mehmet, Ertem, Tuna, and Batı Dilleri ve Edebiyatları Ana Bilim Dalı
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Wear ,Fransız Dili ve Edebiyatı ,French novel ,Vian, Boris ,Novel ,French Linguistics and Literature - Abstract
TÜM&ÇE toET Yazınsal yaşamım Vemon Sullivan takma adıyla başlayıp daha sonra Günlerin Köpüğü (L'Ecume des Jours) adlı yapmyîa gerçek adem ve gerçek yaratıcdığma kavuşan Boris Vian çağdaş Fransız yazınının önemli kişilerinden birisidir. Yazar, Günlerin Köpüğü (L'Ecume des Jours), Pekin'de Sonbahar (L'Automne â Pelrin), Kırmızı Ot (LHerbe Rouge) ve Yürek Söken (L'Arrache-Cosur) adlı romanlarında evrensel bir sorun olan yıpranmayı çeşitli boyutlarıyla irdelemektedir. Doğaüstü bir evrende yaşanan olağandışı olaylar, uyumsuz durumlar ve bu evrende bulunan olağanüstü kişiler aracılığıyla ortaya konulan yıpranma sorunu, başta insanlar olmak üzere, ilişkileri, uzamı, nesneleri, hayvanları ve doğayı etkisi altına alır. Boris Vian romanlarında kadın-erkek ilişkisi çoğu kez bireylerin yıpranmasıyla ve ardından çiftlerden birinin ya da her ikisinin ölümüyle sonuçlanır. Yıpranma süreci, genellikle mutlu başlayan ve umut vaad eden birlikteliklerin hemen ertesinde ortaya çıkar. Evlilik ya da duygusal ilişki içerisinde kadın, erkek yüzünden veya beraberliğin bir sonucu olan çocuk nedeniyle fiziksel ve psikolojik olarak yıpranır. Bu sarsıntı çoğu kez, içinde bulunulan uzamı,kuîîanılan nesneleri etkisi altına almakla kalmaz, aynı zamanda sürdürülen ilişkiyi de sona erdirir. Karşı cinslerin bir araya gelmelerinin sonucunda başlayan yıpranma sorunu, zamanla her türlü toplumsal ve bireysel ilişkiyi bozar.Erkeğin karşı cinsle olan ilişkisinden dolayı fiziksel, psikolojik ve ekonomik yönde bir yıpranma yaşadığı bu romanlarda yaşlılar ve çocuklar da gerek toplum gerekse kurumlar ve gelenekler yüzünden bu yazgısal sorundan payına düşeni alırlar. Yazar, canîı-cansız herşeyi etkisi altına alan bu trajik sorunu, kimi kez biîim-kurgusal, kimi kez fantezist,kimi kez gülünç bir biçemle veya uyumsuz durumlarla irade etmektedir. Temelinde bireyci dünya görüşünün yattığı ve sonsuz birliktelik ya da koşulsuz dayanışmanın olanaksız olduğunu savunan Boris Vian romanları, sadece yaşamın yıpratıcıliğım irdelemekle kalmaz, aynı zamanda, olayları ortaya koyma biçimi ve seçilen ironik yaklaşımıyla ` ciddi ` edebiyatın parodisini de yapar. 104 RESUME EN FEÂNÇAIS Boris Vian qui a commence sa vie litteraire sous le pseudonyme de Vemon Sullivan et qui, avec son oeuvre intitulee L'Ecume des jours, a repris son veritable nom et sa veritable creativite, est une personnalite importante de la litterature française contemporaine. L'auteur, dans ses romans intitules L'Ecume des jours, L'Automne â Pekin. UHerbe rouge, et L'Arrache-Coeur. aborde profond?meni l'usure qui est un probleme üniversel. Le probleme de 1'usure exprime par I'intermediaire des intrigues impossibles, des situations absurdes, et des personnages extraordinaires vivant dans un univers sumaturel, influence premieremenî l'homme, puis îes relations, l'espace, les objets, les animaux et la nature. Dans les romans de Boris Vian, la relation entre l'homme et la femme prend fin generalement par l'usure de l'individu et ensuite parfois par la mort de l'un ou l'autre des partenaires et quelquefois par celle de tous les deux. C'est juste â la fin de la coexistence commencee heureuse que le processus d'usure se voit. La femme, pendant les relations conjugales ou amicales, est usee par l'homme ou par l'enfanî qui est le resultat de cette relation. Cette secousse influence non seulement l'espace et les objets mais en meme temps la relation que Ton mene. Le probleme d'usure qui se voit par la consequence de la rencontre de deux sexes, rompî toutes sortes de relations sociales et individuelies. Dans ces romans oû Thomme subit, une usure physique, psychologique et economique â cause de sa relation avec la femme, les vieiîlards et les enfants sont egalement en proie â ce probleme fatal, soit par l'influence de la societe, soit par celle des institutions et des traditions. C'est avec un style tantöt science-fictif, îanîöî fantaisiste, tantot comique ou avec des situations absurdes que l'auteur aborde ce probleme tragique touchant tout et tous. Les romans de Boris Vian dont la base contient la philosophie de î'individualisme et qui defendent l'impossibilite de l'ensemble infini ou de la solidarite sans condition, n'abordent pas seulement l'usure vitale mais aussi font la parodie de la litterature 'serieuse' avec leur style et îeur rapprochement ironiques. W5 115
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- 1998
175. Biber hatlarında rapd merkezlerinin yardımıyla melez varyete ıslahı için genetik uzaklığın saptanması
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Alkan, Mehmet, Demir, İbrahim, and Diğer
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Ziraat ,Field crops ,Pepper ,Agriculture ,Plant breeding - Abstract
ÖZET BİBER HATLARINDA RAPD MARKÖRLERİNİN YARDIMIYLA MELEZ VARYETE ISLAHI İÇİN GENETİK UZAKLIĞIN SAPTANMASI ALKAN, Mehmet Yüksek Lisans Tezi, Tarla Bitkileri Bölümü Tez Yöneticisi: Prof. Dr. İbrahim DEMİR Eylül 1998, 33 Sayfa Bu araştırmada Altın Tohumculuk A. Ş. 'den temin edilen 22 adet farklı genetik kökenli biber tohumları kullanılmıştır. Biber tohumları serada steril ortamda yetiştirilmiş ve boyları 10-15 cm'e ulaştığında Doyle ve Doyle (1990)'a göre DNA izolasyonları yapılmıştır. İzole edilen DNA'lar random primerler yardımıyla amplifiye edilmiştir. Amplifıye olan DNA'lar % 1,5'luk agrose jelde yürütülmüştür. Daha sonra jel EtBr ile boyanarak UV ışık altında incelenmiş, polymorphic bandlar saptanmıştır. Poylmorphic bandlardan bir matrix oluşturulmuştur. Bu matrix bilgisayara yüklenmiştir. Bilgisayarda genetik uzaklığın saptanması için SAS (1988) programında dendrogram oluşturulmuştur. Bunun sonucuna göre melezleme programlarında 1-19, 1-18, 1-17, 16-19, 16-18, 16-17 hatları arasında melezleme yapılması önerilmiştir. Anahtar Sözcükler : Biber, RAPD, Genetik Uzaklık VI ABSTRACT DETECTION OF GENETIC DISTANCE FOR CROSS VARIETY BREEDING REVEALED BY RAPD MARKERS IN PEPPER ALKAN, Mehmet MSC in Agruculture Eng. Supervisor: Assoc. Prof. Dr. Ibrahim DEMİR September 1 998, 33 pages In this research, pepper seeds obtained from Altın Tohum Co. were used. Pepper seeds were grown in steril conditions in greenhouse and when the seedling have researched to 10-15 cm hight, DNA of seedling were isolated. Isolated DNA's were amplified by random primer. Amplified DNA's were run in agorose gel. Then the gel were stained with EtBr and were screened under UV were done from the polymorphic bands and te matrix were input to computer in order to calculate genetic distance. As a results, lines (1-19, 1-18, 1-17, 16-19, 16-18, 16-17) were suggested to cross. Keywords: Pepper, RAPD, Genetic distance 33
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- 1998
176. Generation and Validation of High‐Resolution DEMs from Worldview‐2 Stereo Data
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Sefercik, Umut G., primary, Alkan, Mehmet, additional, Buyuksalih, Gurcan, additional, and Jacobsen, Karsten, additional
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- 2013
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177. Geometric accuracy and information content of WorldView-1 images
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Alkan, Mehmet, primary, Buyuksalih, Gurcan, additional, Sefercik, Umut Gunes, additional, and Jacobsen, Karsten, additional
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- 2013
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178. Taşınmaz Değerlemesine Yönelik Coğrafi Bilgi Sistemi Tasarımı ve Uygulaması.
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Alkan, Mehmet and Özfidan, Ferihan
- Abstract
Copyright of Karaelmas Science & Engineering Journal / Karaelmas Fen ve Mühendislik Dergisi is the property of Karaelmas Science & Engineering Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
179. QUERYING CADASTRAL PARCEL DATA DEFINED BY INSPIRE URI MODEL BY USING QR CODE: TURKISH CASE STUDY.
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POLAT, Zeynel Abidin and ALKAN, Mehmet
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TECHNOLOGY , *WEB development , *INTERNET users , *TWO-dimensional bar codes , *DIGITAL communications standards - Abstract
Together with the development of modern technology, a new communication media for accessing to the quality information has emerged. In order to access quality information faster and more practically, Web technology has been developed by Tim Berners-Lee. With this technology, Web users are able to access to the information in Web environment by entering web site URI (or URL) addresses, searching and following the related links. URIs with not only Web documents also possible to define the real world concepts. URI technology has been started with the identification of spatial objects from this property and has been investigated in this study can be accessed via the web positional information of the object. For this purpose, the spatial objects (plots) for INSPIRE URI specific to each model are defined by reference to a spatial objects and to access web resources that is associated with this definition URI QR (Quick Response) code technology is used. To flesh out the application on the basis of the plot interrogation practices have been implemented by the General Directorate of Land Registry and Cadastre in Turkey an alternative to QR coded interrogation practices designed plots and compared with the current interrogation practices of the parcel. According to preliminary results of the comparison QR code to enter information for users with questioning parcels making improper interrogation practices in preventing the pos sibility of questioning is reduced to zero and conducted more practical and faster than the current interrogation practices parcel. [ABSTRACT FROM AUTHOR]
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- 2016
180. Ostenitik paslanmaz çelikte Nb ve Mo elementinin kaynak bölgesindeki etkisi
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Alkan, Mehmet, Tekin, Adnan, and Metalurji ve Malzeme Mühendisliği Ana Bilim Dalı
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Molybdenum ,Metalurji Mühendisliği ,Niobium ,Metallurgical Engineering ,Weld joint ,Stainless steel - Abstract
ÖZET Ostenitik paslanmaz çelik reaktör giriş hattının kaynaklarında ana malzeme ile uyuşabilecek elementler veya bu elementlerin yerine geçebilecek elementlere sahip kaynak dolgu malzemesinin kullanılması esastır. Yüksek basınç ve sıcaklıkta çalışan içerisinde hidrojence zengin olan gaz ve mayi geçen 321 kalite paslanmaz çelikte farklı dolgu malzemesinin kullanılmasıyla meydana gelecek sorunların çözümüne çare bulmak için bu çalışma yapılmıştır. Bu malzemeler özel alaşımlı malzeme olması ve kaynak edilebilmeleri hem zaman hemde ekonomik yönden büyük bir yük getirdiğinden dolayı üzerinden önemle durulmalı. İşe bilimsel olarak, mekanik, korozyon ve radyografik olarak tüm testler yapılmak suretiyle başladı. Sonuç olarak çok kısa zamanda olmasa bile uygun zamanlarda bu tür malzemelerinin orjinal dizayn malzemesiyle değiştirilmesinin gerekliliği tespit edilmiştir. IV SUMMARY THE EFFECT OF Nb AND Mo ON THE STAINLESS STEEL. In petroleum refineries there exists high technology production units, important equipment's and pipe lines. In this units, almost each equipment, reactors, heat exchangers and furnaces have different grade materials. Especially furnace outlet, reactor inlet lines were made of Austenitic stainless steel. Among these lines, a search has been done on 321 grade stainless steel line, for minimising the dangerous operation conditions due to use of wrong electrodes at that line, in an other words for preventing the risk of fire and production lost due to the cracks on the line. Since it will take too much time to cut the line and re-weld with original electrode, this search has been done to determine scientifically how long can we go safely with existing faulty welds. As a result of performed tests, using of Mo electrodes instead of Nb electrodes the suitability of weld diffusion to material was searched. Finally it was concluded that on austenitic stainless steel there will be no crack occurring for short period but for long period the original materiel should be used. It was observed, with the work performed by electronmicroscope, that there exists high stress at the regions where the granular formation is sharp in the photos 367 and 368 for that reason this section should be re-newed. The necessary precautions will be cleared out, by scientific examination, that the risk due to use of wrong electrodes which was the main problem fared by usage of 12` Sch 160 321 grade steel (33.32 mm wall thickness) at the inlet line of this unit's reactor. By this work, an approximated time for changing the line will be given, due to the structural change that was recognised at closer time of start up of the unit since the repairment of line by cutting and re-welding will take too much time.This work has been performed, to remove the dangerous conditions due to usage of wrong electrode, in another words, to remove the bad conditions such as gas, liquid and being loss due to the of welds with wrong electrodes. At the 12` Sch 160 321 stainless steel (33.32 mm wall thickness) lines of the high technology unit, `Hydrocracker Unit`, the pipes were welded with wrong electrode. Since the start-up time is close, changing of welds postponed to future times, or shutdowns. This work performed to observe the risky condition at environment due to wrong electrode. In these lines, % 94 purity of Hydrogen is circulated at rate of 172,000 Nm3/h, The lines also includes dense H2S which is very corrosive. For this reason, the test samples were examined by mechanical tests, corrosion tests and micro structure examination. As a result of analysis of 321 lines, at some welds, Mo was found with high ratio than limits, and at some other welds (Ti+Nb) stabiliser element found at inadequate ratio and some 304 quality welds without any stabiliser elements. Ni+Cr with standard ratio, was found at almost all the welds checked with surface machining. Because of this, Ni+Cr ratios were not considered in our examination. The high ratio of (Mo) element results in increase of hardness and hence decreases the tensile strength by 10 %. (Ti+Nb) element is used to prevent the acid corrosion between grains. This will be added to the material at a ratio of 4* carbon ratio or 5* carbon ratio according to some standards. The classical % 18 Cr., 8 % Ni low carbon sells are formed only in Austenitic phase. The existence of carbon dilutes the complex carburs, together with the gamma phase. Austenitic region develops with the condensitiy of Ni. This situation is obvious, especially at 1000 °C and shows the ability of melting of carburs increases with the increase of Ni ratio (Eg. at 1200 °C the limit is for 18/8 steel is % 0,4 and for 18/12 steel is & 0.60) Although the Ni in the ratio for % 8 is enough for the structure approximately under 1150 °C to be completely Austenitic and to stay stable up to the environment temperature, because of the reasons below for the steel with % 18 Cr, the Ni ratio is % 9 or more. VIFor % 8 Ni steel by plastic forming at surround temperature, the Austenitic structure can be transformed partially martensite. An increase of Ni, that adjust the stability of austenite, prevents this transformation. This transformation result bad conditions at manufacturing. Due to the high mechanical strength of austenite at high temperatures, the hot forming of these steels (rolling, forming) should be performed at high temperatures. The existence of ferrite amount in austenite prevents these transformations takes place under good conditions. Since (Peritectic) reactions are slow, the structures corresponding to the (fiziko-simik) equilibrium is obtained rarely by homogenities can be formed by forming of unstable austenite with stable delta ferrite of cooling. An increase of Ni, decreases these possibilities. The weld of steels are not sensitive to the crocks of martensitic steels due to structures. Austenitic welds, at some conditions, can be sensitive to cracks types of following, Crocks results at high temperatures (above 1200 °C ) while cooling. Since the metals structure can not be hrown at this temperature, the examination of this type of cracks is very difficult. Cracks formed between dendrits, that is they follow the crystal interface of cooling structure. Generally it is observed that the completely Austenitic weld are the most sensitive to crack after the complete cooling. If all the other conditions are same, as the ferritic capability of the molten metal increases, its sensitivity to crack at the hing temperature decreases till it is disappeared. According to an obvious identification, there is such a ferritic ratio at the molten metal after cooling that the metal above this ratio is not sensitive to crack anymore. This situation is observed experimentally. Intergranular corrosion is a localized attack along the grain boundaries of a metal or alloy. Corrosion can proceed to the point where whole grains of metal fall away and the metal loses its strength and metallic characteristics. Intergranular corrosion is usually caused by an improper heat treatment or heat from welding that causes the precipitation of certain alloy components at the grain boundary. This precipitation causes a depletion of corrosion-resisting elements in Vllthe area surrounding the grain boundary, and this art; a becomes anodic to the remainder of the grain. The austenitic stainless steels comprise the class of materials in which this form of attack is most common. The precipitate is a chromium carbide that appears at the grain boundaries during heating between 800 and 1400°F. The depleted component is chromium and attack occurs in the chromium depleted areas. There are three methods of combating intergranular corrosion in cases where susceptible materials must be heated in the sensitizing range. The first method is to reheat the metal to a temperature high enough to redissolve the precipitated phase and then cool quickly enough to maintain this phase in solution. The second method, called stabilization, is to add certain elements such as columbium, tantalum, and titanium in order to make use of their ability to combine more readily than chromium with carbon. In this way chromium is not depleted and the metal retains its corrosion resistance. The third is to restriet the amount of one of the constituetnts of the prceipitate-usually carbon-and thereby reduce the extent of the precipitation and resulting alloy depletion. Although it has been thougt that straining a metal would make it less noble and therefore subject to more rapid attack, it usually does not. Severely cold worked Nickel corrodes at approximately the same rate as when fully annealed. Some alloy sytems do show higher general corrosion rates after straining, but it appears that this increase is caused not by any significant shift in metal potential due to stress but by a metallurgical change in structure. It has been observed that on a metal sample with a sheared edge, which is a highly stressed area, the edge is more susceptible to pitting than the rest of the sample. It is just as likely, however, that pitting, in such cases, originates within the multitude of small crevices which exist as a result of shearing and is not directly related to the increased stresses. There are very important instances of stress and corrosion operating simultaneously to cause, not increased general attack, but fracture. Two such failure mechanisms are corrosion fatigue and stress-corrosion cracking. vmMetas that fail as a result of being alternately or cyclicly stressed are said to fatigue. Failure is by transgranular cracking (see Figure 12) and is usually only a single crack. (High temperature fatigue is intergranular since, above the equicohesive temperature, grain boundaries are weaker than the grains. A few metals such as lead and tin have low equicohesive temperatures and fail intergranularly even at room temperature.) Endurance limit and fatigue strength are measures of a metal's ability to withstand cyclic stressing in air. When the metal is cyclicly stressed in corrcisive environments, the joint action of corrosion and fatigue greatly intensifies the damage. Cracking is again transgranular, but there are usually a number of craeks and they quite often begin at the base of a corrosion pit. Fatigue data determined in air are useless as a design criterion for a part to be placed in service in a severe corrosive environment. Unfortunately, corrosion fatigue data for environments other than water or sea water are almost totally lacking. The most important consideration in selecting a metal for resistance to corrosion fatigue is the resistance of the metal to the corrosive environment. Metal strength is usually secondary. IX 58
- Published
- 1997
181. Otoyollarda mühendislik ölçümleri
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Alkan, Mehmet, Banger, Gürol, and Jeodezi ve Fotogrametri Mühendisliği Anabilim Dalı
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Tunnels ,Jeodezi ve Fotogrametri ,Motorways ,Geodesy and Photogrammetry ,Viaducts - Abstract
ÖZET Son yıllarda ülkemizde yapılmaya başlanan otoyollarda tünel inşaasında NATM (New Australian Tunnel Method) yöntemi kullanılmaktadır. Bu yöntem dünyanın bir çok ülkesinde yaygın olarak kullanılmaktadır. Ülkemizde otoyollarda yapılmış olan viyadükler sadece otoyollarda değil gerektiği durumlarda devlet yollarında da kullanılmaktadır. Yapımı devam eden Tarsus - Adana - Gaziantep (TAG) otoyolunda ise dünyada da ender yerlerde bulunan özel viyadükler yapılmaktadır. Tünel ve viyadük inşaatlarında harita mühendislerinin de etkin olarak görev aldığı ölçüm ve aplikasyon işleri bu çalışmada incelenmiştir. Anahtar Kelimeler : NATM, Tünel, Viyadük, Özel Viyadük SUMMARY Engineering Surveys on Motorways. In our country, in recent years, the buildings of the tunnels at the motorways, NATM method is being used. This method is commonly used in the most parts of the world. In our country, not only the viaducts are built at the motorways, but also built at the state ways when necessary. At the TAG (Tarsus - Adana - Gaziantep) motorway, which its building is still go on, some special viaducts which are seen rarely in the world, are being consructed. In this study, the surveying and the aplication works which are effectively consisted of the surveying engineers have been discussed. Key words : NATM, Tunnel, Viaduct, Special Viaduct VI 98
- Published
- 1997
182. Kaynak alabalığının (Salvelinus fontinalis, mitchill. 1814) Doğu Karadeniz koşullarında deniz suyu ve tatlı suda büyüme özellikleri
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Alkan, Mehmet Zeki, Okumuş, İbrahim, and Balıkçılık Teknolojisi Mühendisliği Anabilim Dalı
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Sea water ,Fisheries Technology ,Freshwater fisheries ,Eastern Black Sea region ,Salvelinus fontinalis ,Balıkçılık Teknolojisi ,Growth ,Feed evaluation ,Feed consumption - Abstract
ÖZET Bu çalışmada kaynak alabalığının (Salvelınus fontmalıs) deniz suyu ve tatlısu tanklarındaki günlük yem tüketimi, yem değerlendirme oranı, büyüme özellikleri ve kayıp oranlarının karşılaştırılması amaçlanmıştır özel bir alabalık işletmesinden temin edilen 0` yaş grubu yavruların kullanıldığı çalışma balıklar 18 aylık yaşa olaşıncaya kadar yürütülmüştür. Ocak - Nisan aylan deniz grubunun lehine gözüken büyüme daha sonra tatlısu grubu lehine dönmüştür. Buna göre çalışmanın başlangıcında deniz grubunda 5.74-1.63 g, tatlısu grubunda ise 6.02±1.69 g olan ağırlıklar Nisan 1996 da sırasıyla 96.07+3 1.78 g ve 86.17±27.17 g ve çalışma sonunda 230.28±75.73 g, 318.50±99.39 g olarak tesbit edilmiştir. Ortalama canlı ağırlık farkının deniz grubu lehine maksimum olduğu Nisan 1996 da aradaki fark önemli olmadığı halde çalışma sonunda tatlısu grubu lehine önemli bulunmuştur (P
- Published
- 1997
183. A Re-examination of the Sarcophagus Inscription at Turant Asarı
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Alkan, Mehmet, primary
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- 2011
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184. Stress Analysis in Al Based Composites Depending on Joining Quality
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Köksal, N., primary and Alkan, Mehmet, additional
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- 2011
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185. Studies on coliform organisms in Şavak Cheese
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TEKİNŞEN, O. Cenap, PATIR, Bahri, and ALKAN, Mehmet
- Published
- 1993
186. DETERMINATION OF THERMAL SHEAR STRESSES ON TERMOPLASTIC COMPOSITE ADHERENTS JOINED HYBRID TYPE.
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SEN, Faruk and ALKAN, Mehmet Ali
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SHEARING force ,THERMOPLASTIC composites ,FINITE element method ,STRUCTURAL engineering ,COMPOSITE materials - Abstract
Copyright of Mugla Journal of Science & Technology is the property of Mugla Journal of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
187. THE EDUCATION AND TRAINING OF RENEWABLE ENERGY RESOURCES FOR SUSTAINABLE DEVELOPMENT IN TURKEY.
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KEÇEBAŞ, Ali and ALKAN, Mehmet Ali
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SUSTAINABLE development ,EDUCATIONAL programs ,SECONDARY schools ,RENEWABLE energy sources ,RENEWABLE energy source management - Abstract
Copyright of Mugla Journal of Science & Technology is the property of Mugla Journal of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
188. Kist hidatikte sero-epidemiyolojik araştırmalar
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Alkan, Mehmet Ziya, Özcel, Ali M., and Diğer
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Enzyme-linked immunosorbent assay ,Mikrobiyoloji ,Echinococcosis ,Microbiology - Abstract
ÖZET Türkiye'de Kist hidatik hastalığı prevalansının immünolojik olarak araştırılmasına yönelik bu çalışmada, Enzim-1inked Immunosorbent Assay (ELISA) kolay uygulanabilirliği ve ekonomik olma avantajlarıyla İlk tarama testi olarak uygulanmış, test sonuçları diğer serolojik ve radyolojik testlerle doğrulanarak Türkiye'de belirli bir topluluktaki semptomatik ve asemptomatik kist taşıyıcıların belirlenmesi amaçlanmıştır. Kırsal kesimde belirli bir bölgede yaşayan toplam 684 kişinin serumlarının serolojik olarak incelenmesinde, Kist hidatik yönünden pozitif kabul edilen U kişiden ( 100.000 de 585 ) birinde bu sonuç radyolojik olarak ta doğrulanmıştır. Enzim1inked Immunosorbent Assay ( ELISÂ ), seroepidemiyoloj ik olarak insanda Kist hidatik hastalığının prevalansının belirlenmesinde ve sahada hidatitoz vakalarının araştırılmasında en uygun immünolojik test olarak düşünülmektedir. SUMMARY Enzyme- 1 inked Immunosorbent Assay was used as an initial screening test to estimate the prevalence of hydatid disease in man within the rural area of Türkiye. Positive sera were ret est ed with Indirect Fluorescent Antibody and Indirect Haemagglut inat ion tests. Test results were used to obtain immunological confirmation of clinical cases and to detect asyptomatic cyst carriers amongst residents of rural area. A total of 684 sera from residents of a rural area in the southern part of Türkiye was processed and four seropositive cases were detected. Only one case was examined radiological ly a liver cyst was detected by ultrasonographic examinations. Enzyme- linked Immunosorbent Assay (ELISA) is found to be a suitable i mmuno-d i agnostic method to estimate the hydatid cyst prevalence in man and detecting asymptomatic, hydatidosis cases in the field. 65
- Published
- 1991
189. Militarist Turkish-Islamic Synthesis: Official Ideology, Official History and Nationalism in the Second Constitutional Period.
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Alkan, Mehmet Ö.
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- *
PROMULGATION (Law) , *IDEOLOGY , *SECULARISM , *RADICALS , *NATIONALISM , *EDUCATION - Abstract
The “Promulgation of Freedom” on 23 July 1908 paved the way to the Second Constitutional Period. A clear ideological change occurred in this 10 years period that lasted in 1918. This shift in ideology was a transition from “Islamic- Turkish Synthesis” of Abdülhamid II's reign to the “Turkish-Islamic Synthesis.” The Committee of Union and Progress could have put into practice “Turkish nationalism” or “militant secularism” as the Republican People’s Party did after 1924 when they took the power after the coup of 23 January 1913. However the Balkan Wars and the World War I enforced them to postpone their will. On the contrary they made use of Islam as a unifying and mobilizing source of power and tried to build Turkish identity between the lines in the education system. That is why, as a result of these circumstances, “Militarist nationalism” and “Militarist Turkish-Islamic Synthesis” came into agenda in the Second Constitutional Period. [ABSTRACT FROM AUTHOR]
- Published
- 2014
190. Information content capabilities of very high resolution optical space imagery for updating GIS database
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Dhar, Nibir K., Dutta, Achyut K., Alkan, Mehmet, and Jacobsen, Karsten
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- 2015
- Full Text
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191. Exergoeconomic analysis of a district heating system for geothermal energy using specific exergy cost method.
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Alkan, Mehmet Ali, Keçebaş, Ali, and Yamankaradeniz, Nurettin
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- *
ELECTRIC heating systems , *GEOTHERMAL resources , *EXERGY , *COST effectiveness , *HEAT exchangers , *AIR conditioning - Abstract
Abstract: This study presents the exergoeconomic analysis and evaluation in order to provide cost based information and suggests possible locations/components in a GDHS (geothermal district heating system) for improving the cost effectiveness. The analysis is based on the SPECO (specific exergy costing) method, and used to calculate exergy-related parameters and display cost flows for all streams and components. As a real case study, the Afyon GDHS in Turkey is considered based on actual operational data. The obtained results show that the unit exergy cost of heat produced by the Afyon GDHS is calculated as average 5624 $/h. The HEX (heat exchanger)-III among all components should be improved quickly due to the high total operating cost rate and relative cost difference. The HEX-I and PM (pump)-V have the highest exergoeconomic factors among all other system components due to the high owning and operating costs of these components. The heat production costs per exergy unit for all the HEXs decrease due to the high exergy destruction cost rate of the system, while the well head temperature and ambient temperature increase. The SPECO method may be used to improve the cost effectiveness according to exergy rates in GDHSs as a thermal system. [Copyright &y& Elsevier]
- Published
- 2013
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- View/download PDF
192. TARİHİ ALANLARDA WEB CBS UYGULAMALARI.
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ALKAN, Mehmet, BAYIK, Çağlar, ARCA, Deniz, and ŞEKER, Dursun Zafer
- Subjects
- *
GEOGRAPHIC information systems , *HISTORIC sites , *WEB-based user interfaces , *TECHNOLOGICAL innovations , *CULTURAL property - Abstract
Due to improvements on the technology, web-based Geographic Information Systems become an indispensable part of the projects. Because it provides accessibility, easy usage functions and effective sharing options, it can address to the public people, so the web based Geographic Information Systems are chosen for the purpose of solving techniques in presentation sections. Historic heritage sites of countries present very much emphasis for various ways e.g., tourism, publicity of country, economical gains supply. Because of having lots of historical heritage, Turkey takes part of these lucky countries. Not only having historical heritage is important, but also it is very important to protect and revitalization of these sites. For this purpose, UNESCO takes important historical sites into world historical heritage list for the aim of helping world countries. In our country, nine historical areas are under protection of UNESCO and one of these is Safranbolu historical city. The aim of this study is to design a web based information system for the historical structures in city of Safranbolu. With web based GIS, users easily obtain data and maps which they need and can work with this data in accordance with defined interests. [ABSTRACT FROM AUTHOR]
- Published
- 2013
193. Nöbet Sonrası Gelişen İki Taraflı Humerus Kırığı: Olgu Sunumu.
- Author
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SÖYLEMEZ, Cansu, EMRE, Ufuk, ÖZDEMİR, Mustafa Hakan, ALKAN, Mehmet Oktay, and YAĞIZ, Orhan
- Subjects
RISK factors of fractures ,HUMERUS injuries ,ANTICONVULSANTS ,EPILEPSY ,HUMERUS ,VITAMIN D ,DISEASE complications ,INJURY risk factors - Abstract
Copyright of Epilepsi: Journal of the Turkish Epilepsi Society is the property of KARE Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
- View/download PDF
194. Advanced analysis of differences between C and X bands using SRTM data for mountainous topography.
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Sefercik, Umut and Alkan, Mehmet
- Abstract
By Interferometric Synthectic Aperture Radar (InSAR), during the Shuttle Radar Topography Mission (SRTM) height models have been generated, covering the earth surface from 56° south to 60.25° north. With the exception of small gaps in steep parts, dry sand deserts and water surfaces, the free available US C-band data cover the earth surface from 56° south to 60.25° north completely while the X-band data, distributed by the DLR (German Aerospace Center), cover it only partially. The C-band and X-band radar cannot penetrate the vegetation because of the short wavelength. Therefore, the height models are not Digital Elevation Models (DEM) representing bare Earth surface without any details, they are Digital Surface Models (DSM) representing the visible surface including vegetation and buildings. In the area of Zonguldak, Turkey, C-band and X-band DSMs are available and have been analysed in cooperation between Zonguldak Karaelmas University (ZKU) and Leibniz University of Hannover. The digitized contour lines from the 1:25,000 scale topographic maps and also a more precise height model derived directly from large scale photogrammetric mapping are used as reference height models. The terrain inclination influences the accuracy strongly, but also the directions of the inclination in relation to the radar view direction, the aspects, are important. Independent from the aspects, the analysed results do have root mean square differences against the reference data fitting very well to the Koppe formula SZ=a+b*tan α. The analyses are made separately for open and forest areas, with clear accuracy differences between both. Also, the analysis of X-band separately for three sub-areas is done and the positive effect of double observation to the accuracy has been clearly determined. The C-band data are only available with a spacing of 3 arcsec, corresponding to 92m × 70m, while the X-band data do have a spacing of 1 arcsec. This is important for the interpolation in the mountainous test area. The accuracy of the height points is approximately the same for the C- and the X-band data. But the C-band data which have three times larger spacing than Xband data, do not include the same morphological information. While C-band data contain very generalised contour lines X-band data have quite more details depending on 1 arcsec point spacing. The differential DEMs have been generated, separately, for displaying the differences between SRTM height models and reference DEMs of the test field. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
195. Global scientific production on LADM-based research: A bibliometric analysis from 2012 to 2020.
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Polat, Zeynel Abidin, Alkan, Mehmet, Paulsson, Jenny, Paasch, Jesper M., and Kalogianni, Eftychia
- Subjects
BIBLIOMETRICS ,SURFACE of the earth ,SCIENCE databases ,REVISION (Writing process) ,LAND cover ,STANDARDS - Abstract
Multiple Land Administration Domain Model (LADM) related studies have been carried out in two decades. ISO 19152 LADM is an international standard and an abstract, conceptual model covering the land administration domain (including those over land and water and elements above and below the earth's surface). The LADM is considered an important component for managing and developing land administration systems worldwide. In the context of this study's, scientific publications related to LADM are examined to carry out a bibliometric analysis on LADM research from 2012 to 2020. The extent of this investigation is limited to the Scopus database for scientific publications. All databases belong to the most extensive peer-reviewed summary and citation databases. It is noted that this study is based on the same principles as the research published by Paulsson and Paasch (2015), building on existing knowledge and aiming to add value in support to the current development of Edition II of the LADM. In this study, which covers 2012–2020, 175 LADM related scientific publications were found in the Scopus database. When the distribution of publications in journals is examined, Land Use Policy has the most published manuscripts related to ISO 19152 LADM. This analysis considers author identification, type of paper, organisational issues, and bibliometric analysis components. The analysis considered articles, books, and proceedings directly related to the LADM and included in the Scopus database or conference and workshop proceedings. For this, articles and books were selected from the Scopus database. Also, the proceedings were selected from those presented in the International Federation of Surveyors (FIG) events and workshops on LADM. Overall, this paper aims to arrange and present the global scientific production on LADM-based research. • International standards (LADM and ISO) play a vital role in the development of cadastral systems. • This paper aims to determine Global scientific production on LADM-Based research using bibliometric analysis from 2012 to 2020. • At a crucial time for LADM, during its revision process and with several publications since its vote as ISO standard, this bibliometric analysis provides important background for the research carried out so far. Covering an international context and taking into account publications in well-recognised sources, i.e. Scopus and FIG events, the analysis considered criteria according to their content. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
196. AYNI KALINLIĞA SAHİP LEVHALARIN ALIN KAYNAĞI İLE BİRLEŞTİRME DURUMLARININ GERİLME YIĞILMASINA ETKİSİ.
- Author
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Gök, Arif, Gök, Kadir, Ünal, H. Güran, and Alkan, Mehmet Ali
- Subjects
WELDING ,AXIAL loads ,SYMMETRIC matrices ,THICKNESS measurement ,MECHANICAL behavior of materials ,COATING processes ,STATICS ,STEEL ,CORROSION & anti-corrosives ,COST - Abstract
Copyright of Teknoloji is the property of Engineering Science & Technology, an International Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
197. Evaluation of myocardial perfusion in patients with Behçet's disease.
- Author
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Türkölmez, Şeyda, GöKçora, Nahide, Alkan, Mehmet, Gürer, Mehmet, Türkölmez, Seyda, Gökçora, Nahide, and Gorer, Mehmet Ali
- Abstract
Aim: To estimate the prevalence of silent myocardial ischemia (SMI) in patients with Behçet's disease (BD) and to identify a subgroup of patients at higher risk for the presence of SMI.Materials and Methods: We evaluated 41 patients (mean age 42.8 +/- 12.3 years) with BD and 35 healthy control subjects. Treadmill exercise test and thallium-201 myocardial perfusion single photon emission computed tomography (SPECT) were performed in all subjects. Coronary angiography was performed in all patients with a diagnosis of SMI in Behçet's group.Results: All subjects had normal resting electrocardiograms. Eight patients with BD (19.5%) had evidence of ischemia on exercise testing and myocardial perfusion SPECT. Only one SMI positivity (2.9%) was recorded in the control group. Significant coronary stenosis was not found with coronary angiography in the patients with a diagnosis of SMI in Beçet's group. SMI positivity was recorded in 2 of 18 female patients (11%) and in 6 of 23 male patients (26.1%) with BD (p = 0.429). The mean duration of BD was 13.8 +/- 2.6 years in patients with SMI and 7 +/- 4.1 in patients without it (p < 0.001). Seven of the 8 patients (87.5%) with SMI had a duration of BD of greater than 10 years.Conclusions: The results of this study show that the prevalence of SMI is high in patients with BD. Based on our findings, screening with myocardial perfusion scintigraphy may be recommended for patients with duration of BD greater than 10 years. [ABSTRACT FROM AUTHOR]- Published
- 2005
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198. Metoprolol, a Β-1 selective blocker, can be used safely in coronary artery disease patients with chronic obstructive pulmonary disease.
- Author
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Çamsarı, Ahmet, Arıkan, Serpil, Avan, Candan, Kaya, Deniz, Pekdemir, Hasan, Çiçek, Dilek, Kıykım, Ahmet, Sezer, Kerem, Akkuş, Necdet, Alkan, Mehmet, and Aydo&gcaron;du, Sinan
- Subjects
ADRENERGIC beta blockers ,CARDIOVASCULAR agents ,CORONARY arteries ,BLOOD vessels ,OBSTRUCTIVE lung diseases ,METOPROLOL - Abstract
The coexistence of coronary artery disease (CAD) and chronic obstructive pulmonary disease (COPD) is frequent because of common etiological factors. Β-Blockers remain underutilized in patients with CAD who also have COPD. This study was performed to evaluate the safety of Β-1 selective blocker agents in CAD patients with COPD. Fifty patients (aged 57.3 ± 10.1 years) were enrolled in this study; 27 patients received metoprolol CR (controlled release), and 23 received metoprolol (conventional). The patients were stratified according to the severity of COPD (21 severe, 21 moderate, and 8 mild), started on metoprolol CR or conventional metoprolol, and titrated up to the maximum tolerated dose. The clinical controls were done during the first week and then at the first and third month. Patients received a mean total daily dose of 92.5 ± 18 mg of metoprolol CR or 189 ± 36.7 mg of metoprolol. Seven patients could not receive the maximum dose. There was no significant decrease in forced expiratory volume in 1 s (FEV
1 ) in either group (basal vs last FEV1 : 54.5% ± 13.4% vs 54.3% ± 13% in the metoprolol CR group and 49.6% ± 14.5% vs 53.2% ± 12.8% in the metoprolol group). No adverse event was experienced. Metoprolol, a Β-1 selective blocker, can be used safely at the maximum dose in CAD patients with COPD. [ABSTRACT FROM AUTHOR]- Published
- 2003
- Full Text
- View/download PDF
199. Dobutamine Tc-99m furifosmin SPECT in detection of coronary artery disease: Evaluation of same day, rest-stress protocol.
- Author
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Turgut, Bulent, Unlu, Mustafa, Temiz, N., Kitapci, Mehmet, and Alkan, Mehmet
- Abstract
The purpose of this study was to evaluate the feasibility and diagnostic accuracy of same day rest-stress myocardial perfusion SPECT (MP SPECT) protocol by using technetium-99m (Tc-99m) furifosmin in conjunction with dobutamine stress test in subjects in whom coronary artery disease (CAD) had been proven or excluded at coronary angiography (CA). The study group consisted of 25 patients (8 female and 17 male with a mean age of 53.04±8.56 yrs) unable to perform treadmill exercise or unsuitable for pharmacologic vasodilator stress testing. Ten mCi (370 MBq) of Tc-99m furifosmin was injected intravenously at rest. Sixty min after injection, planar and SPECT images were acquired. One hour later all patients underwent dobutamine stress test. At the peak stress, 20 mCi (740 MBq) of Tc-99m furifosmin was injected. Sixty min after stress dose injection, planar and SPECT images were acquired. Rest-stress planar and SPECT data were evaluated by using visual and quantitative analysis. Heart to adjacent organ (Heart/Lung; H/Lu and Heart/Liver; H/Li) activity ratios were calculated from anterior planar images by using regions of interest (ROI). SPECT data were interpreted by using 20 segment-5 point scoring system from short axis and vertical long axis slices. The results of rest-dobutamine stress Tc-99m furifosmin MP SPECT were compared with CA results. There were statistically significant differences between H/Lu and H/Li ratios at rest and stress conditions. Heart/adjacent organ activity ratios were similar and significant statistical difference could not be found between CA positive and CA normal patients. Sensitivity, specificity and accuracy for Tc-99m furifosmin SPECT study were calculated as 90%, 80% and 84% for left anterior descending (LAD), 87%, 94% and 92% for left circumflex (LCx) and 67%, 86% and 80% for right coronary artery (RCA), respectively. Overall sensitivity, specificity and accuracy were calculated as 83%, 87% and 85%, respectively. According to the results obtained in this study, it may be concluded that same day rest-dobutamine stress Tc-99m furifosmin SPECT protocol is a feasible and accurate technique in the evaluation of CAD, especially in patients unable to perform treadmill exercise or unsuitable for pharmacologic vasodilator stress testing. [ABSTRACT FROM AUTHOR]
- Published
- 2002
- Full Text
- View/download PDF
200. Spatial-Land use planning system data model proposal for edition II of LADM.
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Yılmaz, Okan, Gürsoy Sürmeneli, Hicret, and Alkan, Mehmet
- Subjects
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DATA modeling , *SPATIAL systems , *BUILDING permits , *CONCEPTUAL models , *SCHEDULING - Abstract
Spatial plan decisions guide both the future use of the lands and many activities from protection to construction and permit. Due to its functions, spatial plan decisions play a key role in land administration. Spatial planning information for integrated land administration systems (LASs) should be associated with land registration systems. The Land Administration Domain Model (LADM) standard offers components to enable this structure. Integrating spatial plan data with LASs will provide standardization for plan data and assurance of plan decisions. Although the spatial planning mission differs across various administrative regions, planning activities produce land use decisions, albeit in different ways. The study aims to establish the common points in planning activities and design a joint spatial planning system data model using various countries' spatial planning systems and international standardization studies. The spatial plans in the model that has been proposed are depicted as a system, not merely by the rights, restrictions, and responsibilities (RRRs) that they establish on the land. The results point out that spatial planning systems have some similarities but also some limitations to support conceptual model design. Based on joint data and relationships, the proposed spatial planning system data model can be adapted for different country practices. The study's results are expected to support the LADM second version development studies. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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