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The purpose of the research is to test the effect of intellectual capital efficiency on firm profitability and firm value of firms operating in the information and communication technologies sector in Borsa Istanbul (BIST). The research sample consists of thirteen firms and covers the years between 2010 and 2020. The relationship between the effectiveness of intellectual capital components and firm performance is tested by constructing two different models and panel regression analysis. The dependent variables in the models are ROA (Return on Assets) and MTB (Market Value / Book Value) and the independent variables are the efficiency coefficients of the components in the VAICTM (Value Added Intellectual Capital Coefficient) model (HCE - human capital efficiency, SCE - structural capital efficiency, CEE - working capital efficiency). According to the research findings, the impact of intellectual capital components on firm performance is quite limited. Among the intellectual capital efficiency coefficients, only CEE has a positive effect on ROA. There is no relationship between intellectual capital efficiency components and MTB. [ABSTRACT FROM AUTHOR]

This paper analyzes the efficiency and efficiency changes of 57 Turkish natural gas distribution firms in the period 2016-2021 with input-oriented Data Envelopment Analysis (DEA) and Malmquist Total Factor Efficiency (TFP) Index, respectively. The efficiencies of the distribution firms are analyzed using both the aggregated data of all years and the six‐year multiperiod analysis. According to the results of the aggregated model, the technical efficiency, pure technical efficiency, and scale efficiency of the firms on average are 77.4%, 81.2%, and 95.4%, respectively. 32 (14) scale-inefficient firms have increasing (decreasing) returns to scale. Only three of the 10 firms that are technically efficient in the aggregated model are found to be fully efficient in all periods. Natural gas distribution firms are classified as small firms and large firms according to their gas delivery amounts, and the scale efficiency of these firms and the changes in the number of large and small firms with increasing or decreasing returns to scale are examined on a yearly basis. Over the period 2016-2021, total factor productivity decreased by an average 1.8% annually, as a result of an annual average decrease of 1% in technical efficiency and an annual average decrease of 0.8% in technological change. The reduction in technical efficiency is due to 0.6% decrease in pure technical efficiency and 0.4% decrease in scale efficiency. [ABSTRACT FROM AUTHOR]

Steam traps are critical to energy efficiency in many industrial facilities. The types of steam traps, their uses, and application problems (such as installation, sizing, material compatibility, working conditions) have been explained in this study. The most common causes of steam trap problems and methods for maintenance and repair are explained in detail. Steam leakage measurements in an industrial plant were used to demonstrate the economic significance of steam traps. Based on the analyses, the one-year energy loss cost for the plant with 105 steam traps was determined to be $561,384, and was reduced to $93,287 after the maintenance period. [ABSTRACT FROM AUTHOR]

The information and communication technologies of the 21st century use digital user data as a technical tool and aim to increase the efficiency and profitability of industrial production through the use of advanced data analysis technologies. Big data technologies carry out continuous surveillance on internet users and can reach accurate inferences through advanced analysis methods by using data generated by users. The ability of big data analysis techniques to collect and process detailed behavioral data about users raises concerns regarding the privacy and confidentiality of user data. This study, which provides a summary of the developmental stages of data technologies and analyses the dangers contained in these technologies in connection with the ongoing and new dynamics of capitalism, includes a survey of 307 people. The survey consists of questions that measure participants' levels of caution and anxiety regarding their personal and behavioral data, internet usage habits, digital skills, and awareness levels of data privacy breaches. The sample included students selected from the Departments of Sociology, Philosophy and Computer Engineering at Hacettepe University and technology company employees at Hacettepe Teknokent to include three different levels of technological expertise. The study found that participants were also more likely to be concerned about their behavioral and sensitive data as their frequency of daily internet use increased. Users' attitudes to behavioral data vary according to their frequency of daily internet use and the level of expertise of the participants. Participants demonstrated a high level of awareness of online profiling, but the habit of keeping data regarding their online behavior private is not widespread. When the findings are evaluated broadly, it is noted that participants with a limited knowledge of the profiling capacity of data technologies are unable to maintain behavioral data confidentiality. This research has limitations in the context of the sample's capacity to represent the research universe. However, it is thought that it will prove useful in drawing the historical background for the development of big data technologies, analysing this technology within the dynamics of capitalism and in drawing attention to the differences between users' approach to personal data and behavioral data. [ABSTRACT FROM AUTHOR]

The aim of the study is to investigate the extent to which the quality performance will be changed by transferring the processes in the coating section of the home textile production enterprise to the automation system. The effects of total quality on the efficiency of companies were investigated. The supporting role of total quality management with information communication technologies is examined. For this purpose, an intermediary model has been created. The data were obtained from the employees of the coating department of a company operating in the textile sector. As a result of the analysis of the model, the full mediation role of TQM applications in relation to TQM-ICT awareness and quality performance was determined. [ABSTRACT FROM AUTHOR]

In recent years, innovation is one of the most important competitive tools used by businesses to achieve sustainable growth. Thanks to innovation, companies can significantly increase their production, finance and marketing performance. In this study, fuzzy data envelopment analysis method was used to determine the performance efficiency of twenty companies operating in software sector in İzmir. For the fuzzy efficiency analysis, university cooperation level, product innovation and process innovation rating scores were taken as input variables. Software development performance, market performance and financial performance scores were taken as output variables. Data on input and output variables were obtained through a questionnaire applied to enterprises. The results obtained with fuzzy data envelopment analysis and classical data envelopment analysis models were examined comparatively. In this study, it is aimed to list the twenty companies operating in the software sector in İzmir province by classical data envelopment analysis and fuzzy data envelopment analysis method. [ABSTRACT FROM AUTHOR]

Businesses are in constant need of continuous growth, simultaneously with the growth of the economy. Conglomerating or getting under the roof of holdings could mitigate this. Study attempts to analyze whether there is statistically significant difference between the performances of holding and non-holding based on financial ratios using t-test analysis in a panel data setup. Results indicate that holding companies positively separate from non-holding companies on efficiency and negatively on short term liabilities turnover. Results suggest that non-holding firm attempt to make up for long operational cycle by longer liability payment periods. However, holding firms still display a shorter cash conversion cycle. Results indicate that holdings are successful at meeting their primary role of efficient resource allocation and management. [ABSTRACT FROM AUTHOR]

Nowadays, the activities of companies started to become more complex and diverse as a result of technological developments and increasing human population. This situation requires the efficient use of companies’ resources. It is important for airline companies to carry out their activities effectively with the help of infrastructural improvements and state subsidies for air transportation in our country. This is particularly important both for sectoral and academic development. The data envelopment analysis (DEA), which is the method of this study, is a multi-criteria decision-making method that measures efficiency by evaluating the data set handled by using common inputs and outputs for enterprises or periods covered. This study was conducted in order to measure the efficiency of activities of the airline companies. In addition, this was done in order to measure the shortcomings of the literature and the efficiency of the airline companies. Within the scope of this study, the activity effectiveness of the two companies which are Turkish Airlines and Pegasus Airlines, operating in our country between 2012 to 2015 was measured by using VZA. As a result of the analysis, information about the activity efficiency of the companies in the relevant years is provided by evaluating the obtained results. [ABSTRACT FROM AUTHOR]

In this study, a power management scheme using genetic algorithm optimization method in a heterogeneous LTE network in which there exists femtocells having a low transmission power among macrocells is proposed. The simulation results show that power management for femtocells in the downlink direction plays an important role in reducing the degrading effects of the interference. In the simulations, the results of keeping fixed transmission power of femtocell base stations situation are compared with that of performing optimization case. There is no observable performance loss in the femtocell user's signal-interference and noise ratio due to the power management optimization. On the contrary, almost 50% transmission power decrease of femtocell base station can be provided by means of the proposed power management scheme. [ABSTRACT FROM AUTHOR]

In the study, it is examined whether the efficiency of the companies that are traded in the BIST sustainability index, which are started to be calculated as of November 2014 in our country, have changed their efficiency according to previous periods before entering into the scope of the index. For this purpose, the efficiency values of the periods of 2013-2016 were calculated by using Data Envelopment Analysis (VZA) method considering the 13 manufacturing companies included in the sustainability index in the period of November 2015 - October 2016. The change in efficiency values of companies over the period was measured by Malmquist Total Factor Productivity (TFV) index. As a result of Data Envelopment Analysis, it was determined that 7 companies of the 13 were effective both before listing period and after listing period in sustainability index. 4 companies were effective in the previous periods but they were not effective after entry process of sustainability index. Also 2 companies were not effective neither their non-listing period nor listing period of sustainability index. According to Malmquist TFV index, productivity of 7 companies increased over the period of 2015-2016. If the Malmquist TFV index of these 7 companies was examined, an increase in productivity of 6 companies in the period of 2014-2015 and 3 companies in the period of 2013-2014 had been determined. When the two main elements of Malmquist TFV index, technological efficiency and technical efficiency, were examined, it was shown that the productivity of companies increased during the period of 2015-2016 caused by technological efficiency. If we made business-based assessments, the first three companies with a high increase in productivity were VESTEL (43%), TOFAŞ (37%) and Petkim (16%) as of 2015-2016. As a result, it was seen that whether or not the companies take place in the sustainability index didn't make a difference in productivity. [ABSTRACT FROM AUTHOR]

Mixed-model assembly lines are needed for the assembly of products with a variety of models at comparatively lower costs. The design of such lines requires the work to be done at stations well balanced, satisfying the constraints such as time, space and location for optimal productivity and efficiency. This paper presents a heuristic algorithm for the mixed-model assembly line balancing problem to minimize the number of stations for a given cycle time. The proposed algorithm further reduces time discrepancies among stations due to differences in times for common operations of different models by using a smoothing approach which is based on the tabu search algorithm. [ABSTRACT FROM AUTHOR]

Work-related accidents causing loss of life and serious injuries is an important social problem and a large amount of loss for businesses. Work-related accidents resulting in loss of working days caused by discontinuities in the hiring of employees is an important part of these costs. Reduced to an acceptable level of accidents reducing the direct costs such as loss of work days, as well as increasing the efficiency of the employee's continuity and contribute to an increase in operating profit. About 22 work-related accidents occur in the construction industry every working day, 1,2 people being permanently incapacity and 1 person dies as a result of these accident. Construction site accidents creates a large amount of the financial loss. Research was carried out on site, occurring within 2,5 years with a variety of small-scale work-related accidents, there has been a total of 1946.5 hours of loss, the amount of these losses revealed reached 14.268 TRY. With fatal and serious injuries as a result of a occupational accidents, loss reaches large amounts, given the fact that occupational health and safety prevention programs to reduce costs, increase efficiency, and sustainability is understood in these results. [ABSTRACT FROM AUTHOR]

Competition, had been feeling deeply even in small market shares because of disappearing economic boundaries, can be turned into advantage by using sources efficiently and productively. Competition advantage depends on manufacturing more output by using lesser input and using it efficiently. The aim of the study is to compare 16 firms in Paper and Paper Products, Printing and Publishing Industry, publicly traded in İMKB, with Data Envelopment Analysis (DEA). Input and output variables using in analysis were chosen among financial ratios, which have been using in common. As a result of the study, applied by using data of 2012, average efficiency score of sector was determined as 60.8% and HÜRRİYET, KOZA, DURAN DOĞAN and DENTAŞ use their sources precisely efficient and they were determined as reference firms. Required potential development ratios were calculated in order that the firms can be efficient and necessary suggestions were offered. [ABSTRACT FROM AUTHOR]

In this study, efficiency level of affiliated enterprises to the General Directorate of Post and Telegraph Organization (PTT), a public institution, in 76 cities is analyzed for the period 2006-2010. Total Factor Productivity (TFP) and change in the composition of TFP in each city were examined using the Malmquist-TFP index method for a given period. The obtained results correspond that an increase of 46.6% in total productivity is revealed in the related period and this increase is largely due to the increase in technological change. [ABSTRACT FROM AUTHOR]

In this study, efficiency levels of 25 manufacturing firms listed in the ISE 100 index are measured for the period before and after the 2008 crisis by Data Envelopment Analysis (DEA). Afterwards, a ranking is made between the firms which are efficient by using super efficient analysis. In the study current ratio, receivables turnover ratio, inventory turnover ratio, long term debt/equity and financial leverage are used as input data and return on asset and return on equity are used as output data in order to analyze input oriented efficiency. As a result of the analysis, only 3 of the firms are found efficient before and after crisis period. Nonetheless, 3 firms were not able to remain efficient during global crisis period. [ABSTRACT FROM AUTHOR]

Managers must think many evaluation criteria together. Some of these criteria values must be higher, but some of them must be low. Promethee method enables to evaluate of these opposite values. In this study, laser cutting machines will be compared according to working accuracy, cutting speed, point to point speed, acceleration and axis movement evaluation criteria by using Promethee method. Working accuracy value differs from the other evaluation criteria because lower working accuracy value is preferable. [ABSTRACT FROM AUTHOR]

Surface quality and dimensional precision significantly affect to strength and performance of working machine parts that are contacted one another. Additionally, cutting tool geometry and cutting parameters are the most important factor affecting to cutting force, surface roughness and productivity in machining. In this paper, optimization of cutting parameters and tool nose radius (variables) was performed for which Fc and Ra are occurred in machining of AISI 316L austenitic stainless steel. For this purpose, the machinability experiments were carried out using Taguchi's L9 orthogonal array. An analysis of variance (ANOVA) was employed to determine the level of contribution and effects of variables on Fc and Ra values measured during the machining experiments. Optimal values of variables which were obtained using the S/N ratios were found at different levels for Fc and Ra. According to the ANOVA results, the most significant variable affecting to cutting force and surface roughness values was determined as feed rate. [ABSTRACT FROM AUTHOR]

Mersin province is one of the most important agriculture centres of Turkey. Conventional systems are widely applied in the agricultural production. To obtain higher and quality crop from per unit area is possible with use all production inputs and techniques. Agricultural mechanization has a paramount importance in agriculture production, quality and efficiency of the work. The aim of this study was to determine the projection of technology usage in agriculture of Mersin province. It was calculated that the projection coefficient was 4.49% for cultivator, 3.74% for tractor disc plow, 3.04% for tractor moldboard plow, 0.73% for rotary cultivator, 5.07% for atomiser, 3.79% for planting machine and 4.38% for chemical fertilizing machine. The increasing in the projection co-efficient caused to increase on implement and machine numbers. [ABSTRACT FROM AUTHOR]

Turkish Banking Sector withstanded to 2008 global crisis by the powerful structure because of the measures taken after the 2001 crisis. However, the effects of the crisis were appeared in the real sector as the record decrease at production levels, high current deficit, and increasing unemployment ratios. There is a perception about the Turkish banking sector succeded in protected from 2008 global crisis. The purpose of this study is to find out the levels of reflections on the rates of the sector efficiency. In this study Data Envelopment Analysis which is a non parametric method is used. First, it is concluded that government owned banks are more efficient than privately-owned banks and foreign-owned banks in the period of 2007-2009. Second, it is observed that the efficiency level of foreign-owned banks' is lower than others in this period. Last, these findings about the foreign-owned banks can be observed on the change of Total Factor Productivity Index. [ABSTRACT FROM AUTHOR]

In this study, the efficiency of tea processing factories of General Directorate of Tea Enterprises (Çaykur), which is a Public Economic Enterprise, is investigated using data envelopment analysis (DEA) and data set for the period of 2005-2010. First, efficiency analyses are subjected to the every individual year separately. Then using data set in constant prices, factories' efficiency levels of 2005 and 2010 are compared. Findings show that after 2008, efficiency problems are increased in a numbers of factories and efficiency scores decreased in inefficient factories. Homogeneity with respect to productivity is declined in the same period among the factories. Conclusions of the DEA related to comparison of 2005 and 2010 years prove that productivity problems arise in much more factories and effectiveness scores of those factories worsened. These results indicate that productivity levels of Çaykur tied factories are declined in 2010 compared with 2005 [ABSTRACT FROM AUTHOR]

In this study, indicators of the level of mechanization of agriculture in Turkey agriculture and these indicators have been compared with indicators of the European Union. This study is composed by Turkey and the European Union's agricultural structures and mechanization properties. From this data introduced the current situation of Turkey and the European Union's agricultural structures and agricultural mechanization properties. Indicators of the level of mechanization in Turkey, 1.68 kW ha-1, 24.80 ha/tractor, 40 tractors/1,000 ha, 5.20 equipments/tractor, 4.20 tons/tractor; in the European Union 6 kW ha-1,11.30 ha/tractor, 89 tractors/1,000 ha, 10 equipments/tractor, 12 tons/tractor. According to these comparisons, the level of mechanization in Turkey in terms of the degree of mechanization of the indicator values 'EU average is low. This development stands in front of the unfavorable structure of agricultural as a problem. [ABSTRACT FROM AUTHOR]

The aim of this study is investigating the structure of enterprise risk management through different aspects. Besides, on evaluation has been made by putting forth the structure's mechanism and application process of enterprise risk management. As a result of this evaluation, it has been determined that organizations need an effective enterprise risk management for effective and high performance in risky environment conditions. Because organizations, get the opportunity to assign the resources in an efficient way by enterprise risk management practices. [ABSTRACT FROM AUTHOR]

The fundamental economic goals of the business enterprises, except with social objective ones,, is making profit from their activities, developing, providing continuity and to increase market value. Business enterprises need some performance measurement systems for adapting themselves to increasing competition and changing environmental conditions, taking right results with the right data by making accurate strategies and deciding the stage of the targets which is constructed according to their goals in the application. Because of the changes in the fields of information systems, technology, production management and management systems, necessities for checking over the performance criteria for the business enterprises occurred nowadays. Financial performance measurement systems which were used mostly before become insufficient for specifying the performance criteria for today. In this study, the performance of the cement sector listed in İstanbul Stock Exchange (IMKB) is evaluated in terms of effectiveness and efficiency by the Data Envelopment Analysis (DEA) method. [ABSTRACT FROM AUTHOR]

Theory of constraints thinking process approach can be used in manufacturing and service firms for identifying the core problems and improving the efficiency of the processes by eliminating core problems. This paper explains the application of theory of constraints thinking process in determining the factors that affect the efficiency of the production process of a firm and in analyzing the relationships between these factors. The aim of this study is to show the application of theory of constraints thinking process for improving a manufacturing process. By using the current reality tree the core problems which cause undesirable effects have been determined and how the tool of evaporating cloud can also be used for eliminating the core problems has been evaluated. [ABSTRACT FROM AUTHOR]

In current age, organizations assume important roles in our daily lives and in a sense, the society is consisted of a group of organizations. Facts like globalization and competition carry organizations to new and different searches and this situation requires employees of an organization to take over more different responsibilities and show different performance. Organizational Citizenship concept that has recently been worked on in management literature, accepted as important concept for efficiency and effectiveness of organizations. In light of the abovementioned information, this study aims to identify organizational citizenship behavior of frontline employees of hotel operations in Ankara and if this citizenship behavior differs according to gender. The results demonstrate that, front line employees show citizenship behaviors and these behaviors differ according to their gender. [ABSTRACT FROM AUTHOR]

Agricultura machine parks and agricultural mechabization levels of Ege Region's provices in Trukey were determined in this study. To reveal the level of agricultural mechanization, 5 variables and the postion of the machine park 18 variables analyzed by Multidimensional Scaling. Dual and triple postioning have been done in this study. Accoridng to dual positioning Manisa and ternary positioning from other provices in terms of agrucultural mechanization levels. According to duak positioning Manisa, Ïzmir and Aydin, ternary positioning Aydin and Ïzmir provinces differ postioning from other provinces in terms of machine park. [ABSTRACT FROM AUTHOR]

Pre-sellers make a connection between CCI sale department and the customers. They have to go to office every morning and evening but the time spent in office decreases customer relations and this situation decreases efficiency of sale system. "Also, fuel and office expenses increase and life standard of pre-sellers is affected. The aim of the project is to design a new "Demand Collection System" for CCI Ankara. Pre-sellers 'job flow and pre-sellers' customer routes are reorganized. In addition, annual activity plan calendar is made to improve pre-sellers' motivation. The system is implemented; as a result, office expenses decrease 30%, number of vehicles decreases 12% and employees' service decreases 60%. [ABSTRACT FROM AUTHOR]

Economics has used Neoclassical-Pareto Efficiency Theory as economic efficiency for a long time. However, this theory is not sufficient to explain the (in) efficiencies of the real economic activity. Although some approaches have introduced against the conventional theory, a more general and comprehensive explanation on efficiency is that engaged by modern economic theory has not yet been in force. The dimensions of ongoing controversy has reached from X (in) efficiency approach to the modern theories of the firm. Departing X (in) efficiency approach, the aim of this essay is to study the sources of efficiency existing in the real economic life and to model its determinants within today's market relations. [ABSTRACT FROM AUTHOR]

Today globalization, technological developments and mass competition forced businesses use their resources efficiently, evaluate relatively performance with their competitor and determine businesses for benchmarking. In this study, it is tried to examine whether 24 businesses which traded in Istanbul Stock Exchange in food and drink sector are efficient. For this aim, businesses efficiency is measured by Data Envelopment Analysis (DEA). Also, similar businesses are clustered by cluster analysis and business efficiencies are ranged by TOPSIS analysis and methods are compared. According to the result of DEA, 14 businesses in 2007 and 11 businesses in 2008 are found to be efficient. As a result of the study, it is observed that the methods we used produced contradictory results. Although some businesses found to be efficient in DEA method, these businesses could not show a good performance in TOPSIS analysis. Also, some efficient businesses are in different clusters in Cluster Analysis. [ABSTRACT FROM AUTHOR]

Today coal and other fossil fuels share 40% and 20% of the world's total electricity respectively. Fossil fuels playing an important role on CO2 emissions which has the greatest negative effect on greenhouse, causing 55% of the global warming. To stop negative effect on greenhouse CO2 emissions should be decreased. For that reason the CO2 emission technology of the power plants is necessary to be developed and replaced by a zero emission technology. Zero and near zero emissions power plant technologies and their cycles, and important cogeneration cycles are analyzed by the first law of the thermodynamic. Oxyfuel and water cycles' heat and electrical powers compared with sample and recuperated cycles. First law of the thermodynamic efficiency of the oxyfuel and water cycles are found less 8% than sample and recuperated cycles because of air separated unit work to separate oxygen (2-3%) and compressing work of CO2 (5-6%). For the thermodynamic analyze a computer program which its' FORTRAN codes are written by us. The results of this study are also compared with the literature and found that appropriate. [ABSTRACT FROM AUTHOR]

Energy consumption of a rail transit system depends on many parameters such as train weight, maximum speed, power supply system voltage level, and operation concepts. One of the most effective methods of reducing energy consumption in a rail transit system is optimizing the speed profile of the trains along the route: Trains consume the maximum energy during flat-out mode operation where they speed up to the maximum speed and keep that speed until it reaches to the braking point which is determined by deceleration rate. This type of operation gives the shortest journey time. A small trade-off from this journey time gives high saving in energy consumption. This subject poses an optimization problem which could be very complicated. In this study, a new efficient method will be presented for optimization of the coasting points for trains in a global manner. The new method suggest using Artificial Neural Networks (ANN) together with classical approach of simulator tool and genetic algorithms. Trains run along the line according to a timetable. Timetables define the travelling time for every train from every station to station. Timetables always include some slack time for an unexpected time loss which could be caused by faulty equipment, but mostly by passengers. Slack times and station dwell times are very important for providing a punctual service. Delays disturb the punctual operation as well as reducing energy efficiency by consuming the slack times which can be used in normal operation conditions for energy efficient driving. Simulation software is used for creating training and test data for ANNs. These data are used for training of ANNs. Test data are used to validate the outputs of trained ANNs. The trained ANNs are then used for estimating energy consumption and travel time for new sets of coasting points. Finally, the outputs of ANNs are optimized to find optimal train coasting points. For this purpose, a fitness function with target travel time, energy consumption and weighting factors is proposed. Genetic algorithms were used for this search purposes. An interesting observation is that the use of ANNs increases the speed of optimization, and gives researchers the ability to test different optimization with differing genetic algorithm parameters. Proposed method is used for optimizing coasting points for minimum energy consumption for a given travel time of first 10 km section of Istanbul Aksaray- Airport metro line, where trains operate every 150 seconds. The section covers 9 passenger stations, which means 8 coasting points for each line. It has been demonstrated that an 16 input ANN can be trained with acceptable error margins for such a system .The optimization method finds the near optimum points for different target travel times and weight factors of the fitness function. It was found for the given line configurations that the energy saving potential with coasting schemes for the same amount of time increase is far less in the multi-train case, where trains regenerate and feed each other.… [ABSTRACT FROM AUTHOR]

In our world, meeting the consumer wishes and demands puts the prioty on services efficiency in providing the quality of products and services. Services efficiency is one of the most important matters and strategy in automotive sector like all sectors. In this study, automotive sector in Erzurum have been examined and some conclusions have been drawn for companies. In this study, services efficiency in seventeen dealers in automotive sector in Erzurum City Center have been examined by DEA (Data Envelopment Analysis). The performances of dealers in automotive sector is compared with the others and the efficiency rate for each dealers is assessed. Efficiency scores of each dealer are obtained and potential improvements are advised for inefficient dealers. [ABSTRACT FROM AUTHOR]

The purpose of the study is to compare performance efficiency of businesses listed in the sector of Fabricated Metal Products, Machinery and Equipment on Istanbul Stock Exchange (ISE) by using Data Envelopment Analysis. Data Envelopment Analysis is a method that is used to determine to effective and ineffective units, performing in same subject and using similar inputs and outputs. As a result of the analysis, it is found that 5 businesses are efficient in 4 periods of 2008. In addition to that, the potential recovery rates are calculated for the inefficient manufacturing businesses and made some recommendations how they might perform better. [ABSTRACT FROM AUTHOR]

This study has been performed to find out the efficiency of cottage hospitales in the city center of Konya. Data has been obtained from Konya Health Diractorate Province of statistics 2007. Efficency evaluation has been done by means of Data Envelopement Analaysis (DEA). Input variables of DEA models are the numbers of general practitioner, nurses and midwifery, as for that, output variables of DEA models are the numbers of vaccination-injection, consulitation and midwifery home visites. At the end of this research, the average efficiency level of cottage hospitals is measured 83.77 %. [ABSTRACT FROM AUTHOR]

In more heavily globalizing world economy, Efficiency plays a crucial role in terms of sustaining countries' economic development. For the past decade, Six sigma, for which many world-wide leading corporations apply, has helped increase their profit and expand by making their all processes (e.g. manufacturing, personnel management, finance, marketing) more efficient. Six sigma, however, focuses on quality instead of speed. Lean production offsets the underlying difficulty due to slow processes. Lean management is especially known to be good at any process's flow and speed rather than quality improvement. Thus, the most desirable results can be attained when Lean management and Six Sigma techniques are used together and in a manner that both support each other. This study surveys the literature about Six sigma and Lean six sigma methodology. Studies in the literature are classified into different categories and brief information is given. [ABSTRACT FROM AUTHOR]

The technology of identifying the objects with radio frequencies firstly came into view after 2nd World War but it was used as the system after 1960's. Thanks to this technology, it has become possible to apply the activities more efficiently, while following the product movements faster and more reliably and avoiding the obstacles in activities. Under given price conditions, the ability of the management to obtain more output with its owning means a decrease in the unit costs and an increase in the unit contribution margin, in private, and means an increase in the added-value (productivity), in general . The aim of this study is putting forward the dimensions of cost reduction, that will be created by the increase in efficiency, which will be provided by the using of RFID technology and revealing this technology's effects on management results, by introducing the RFID technology, its components and their functioning. [ABSTRACT FROM AUTHOR]

In a construction of machine, the parts that perform similar functions are not been sized at all times. The parts which are ripped functionally are standardized. These are named as standards or norms. (TS, DIN, EN, ISO, etc.) Due to standardization, the costs will decrease and also in all of the stages of construction, from drawing to production, from production to installation and after this, it will be a big easiness for operation and maintenance. Standardization will provide practicality and efficiency for alignment of parts that should be changed, and also provide solutions of which the accuracy and compliance are accepted instead of ones changing people to people. Economic problems but we have so often attached to people, instead of different solutions for accuracy and compliance solutions offer accepted. Inside geometric dimensioning the measurement tolerances have great importance when the standards such placed in these days. Tolerances and the quality of tolerances have been linked to international standards. During breakdown and planned maintenance in production, if the user complies with the measurement tolerances that determined by the producer of the machine, it will provide efficiency and reduction for the costs of production. In this case, in "maintenance engineering" first of all examination of the "geometric tolerances and dimensional sizing" must be known, performed absolutely and improved constantly. [ABSTRACT FROM AUTHOR]

This article will present the global trends in reliability management. Concept of Reliability Engineering will be introduced and discussed in the context of today's heavy industry with practical applications; how reliability influences strategic management tactics and business vision. Today some of the local and international companies utilise a number of business processes for the management of reliability at their sites with a view to improve plant availability. The management tactic that integrates and leads all these business processes is called Asset Management. Asset Management, a relatively new concept, attempts to optimise the management of physical assets of the industrial establishments by taking safety, economics, environment and legal implications into consideration. Asset Management requires a management approach that is in-between and above the existing organisational diagrams. Asset Management includes key business support processes such as reliability and integrity management, maintenance management and quality management (it is formed by the integration of these processes). In this article position and importance of Reliability Management and Reliability Engineering, differences of Reliability Engineering from Operations/Maintenance Engineering will be reviewed in the context of Asset Management in an ever changing global business environment. [ABSTRACT FROM AUTHOR]

Effectiveness, efficiency and productivity are the technical performance monitors of corporations. Technical Performance Monitors help mesuring the performence in all aspects. Technical monitors are used in production process, and mesuring the performence of employees. Those factors are more difficult to measure than measuring the financial situation of the firms. Also there can be complexity when trying to understand all the terms. Some terms can mean various or different values. Their meanings can be different. Thus they should be used carefully. In our work, first of all, the meanings of terms are given for ensure that there is no misunderstanding. In the second part, there are numerical analysis and sector search for marble business. [ABSTRACT FROM AUTHOR]

Research and development; is a term of activity that a foundation develops new products, processes or services by the way of employing scientists and engineers in accordance with the foundation's workplace. In other words, R&D is a work that is made to reach new information or discover the existing know-how by gathering the data systematically, analyze and make comment on these data. The essential duty of R&D is to use the technological developing for carrying on and if possible augmenting the ability of the company's profitability. In the competition process, innovation, evolution, development, and having brand new technology are as important as production efficiency, price, and advertisement and marketing. Phases of R&D projects could be defined: Phase Zero: Finding and eliminating raw ideas, at this beginning phase new commercially hopeful ideas are produced. These ideas are selected and transformed to suitable, consistent development projects. Phase One: Conceptual Research, in that phase, constraints and contents of raw ideas are understood. How to produce the ideas in hand from laboratory conditions to practice are made in that phase. Phase Two: Feasibility, the subject of this phase is to solve known problems and produce the cost and performance data for engineers and salesperson to undertake the research. Phase Three: Development, at the development phase, required technical properties, specifications, and production processes are determined to be able to produce the product. Phase Four: Early Commercialize, in general early commercialize is very dangerous and risky transition phase for financial supporters. The dissatisfaction related with this phase is determinant and highly anticipated. If the problems and troubles could not be defined well, though the market says contrary, presentation of the product should be postponed. While the valuation methods of R&D projects are evolved from basic to hard, they conducted a long process. At that required process the valuation methods are: Classical Methods, Portfolio methods, Organizational decision making methods, and Multicriteria evaluation methods. Real options are based on financial options. An option gives the holder the right to buy or sell the underlying asset by a certain date for a certain price but contains no obligation. A real option is a right to act an action (defer, expand, contract or abandon) in the predetermined cost called strike price and in the predetermined period called expiration time, beside does not contain an obligation. In this dissertation, Black-Scholes pricing method investigated under fuzziness will be utilized. In literature, fuzzy real option valuation models are developed to the lack of exact data situations. At first, a heuristic real option valuation process is developed for fuzzy state. … [ABSTRACT FROM AUTHOR]

Production systems which has more than one assembly line is widely seen in industry. These lines produce same or similar products, and their cycle times are generally considered similar. So, Gökçen et al. (2006) suggested to combine workload of some stations on parallel consecutive lines, in a convenient way, for improving the resource utilization and the efficiency of the production system. This common balancing of more than one assembly line is named Parallel Assembly Line Balancing Problem (PALBP). The major aim of PALBP is to obtain minimum number of stations (or operators). In this paper, a simulated annealing (SA) based approach is developed for PALBP. This paper is built directly on the study of Gökçen et al. (2006). The proposed approach is illustrated with a numerical example and its performance is tested on data set taken from Gökçen et al. (2006). In the computational studies, for 95 test problems, the proposed approach found 47 proven optimal solutions and 6 solutions superior to Gökçen et al. (2006). [ABSTRACT FROM AUTHOR]

Problem Statement: Today establisments are in a very big global competition. From this they must give great effort for making their function continuous and for having a good place in the market. With this aim in available conditions they are making their structure suitable. Outsourcing is giving possibility as a strategic management vehicle. Establishments have tandency to make outsource couse of focus to their basic function. They give out other functions from their basic functions to develope their competition structure. In addition to outsource decreasing costs, share in risks, developing quality, making elastic structure ets helps to ıncrease performance of establishments. Resarch Aims: The aim of this study effects on efficiency using of outsourcing in the hospitals. Method: A questionniare has been applied to a total of 85 managers which works in university hospital (1), state hospital (15), special hospital (2) and branch hospital (2). The data have been evaluated by doing frequency distribution with correlation analysis which aims to reveal the existence of relation using SPSS program. Findings and Results: It has been observed that outsourcing helps to reduce the costs in hospitals and a positive relation between oursourcing and efficiency exists. Thus, it has been concluded that outsourcing increases efficiency in hospitals. Proposals: In hospitals which are the most important health care providers in a sector intense with service, it is obvious that outsourcing focuses respectively on cleaning, catering, security and automation with changes in understanding of providing health services it is thought that health services may also be provided by means of outsources in future. Because in may sector outsourcing is utilized effectively and efficiently. [ABSTRACT FROM AUTHOR]

In this study, recursive least squares method (RLSM) that is one of the adaptable classical methods was used. Firstly forgetting factor was adapted to RLSM. Phase information of voltage signal belonging to an electric power network that contains harmonics and spike was obtained by developed approach. Then responses of the algorithm were investigated for voltage collapse, phase shift and spike. Simulation was implemented by using MATLAB® code. Results of simulation were examined and efficiency of method was presented. [ABSTRACT FROM AUTHOR]

In general, productivity which indicates the relationship between inputs and outputs, expresses the most efficiently usage of these inputs. In recent years, increasing interest on productivity, especially seeks the answer of "which factors affects productivity?". Several studies carried out for this purpose. In this respect, the aim of this study is to bring out the affects of foreign direct investment and trade openness on productivity. The relationship between productivity and trade openness has been investigated by cointegration analysis for 26 observations between 1980 and 2005 in Turkey. And then the relationship between productivity and foreign direct investment has been investigated by the same method. Thus, it is determined that, trade openness expresses %38.7 of the labour productivity and FDI expresses %19.3 of the labour productivity at the end of the twenty years period time. [ABSTRACT FROM AUTHOR]

In this study, the efficiency of Turkish automotive firms in top-500 according to ISO is examined by taking care of the differences in their capital structure. Firms are divided into 4 groups in terms of capital structure. These are public, domestic, foreign, and mixed capital firms. Mixed capital firms also are divided into 2 sub-groups as domestic-weighted owned capital and foreign-weighted owned capital firms. Data Enveleopment Analysis technique (DEA), non-parametric mathematical programming model, is used to compare firm's efficiencies in the study. Input variables of the model are net assets, equity capital, and the number of employee, and output variables are endorsement, profit, and exports. As a result of the study, it is found that only 6 firms work more efficient than the others. In efficient firms, three of them domesticly owned capital firms, two of them foreign owned capital firms and one of them mixed capital firms. Public capital firms are not efficient. [ABSTRACT FROM AUTHOR]

The relationship between resources-activities-products in business has impact on production costs. At process level, resource costs is assigned to activities by activity usage and then activity costs are allocated to products by product usage. At this point, at process level if activities are managed by efficiently so costs are too. For this reason process should be improved in continuum. Additionaly process improvement study must be monitored and analysed. Process value analysis is a tool for answering these purposes. In this article, how process value analysis is used in process improvement studies. Every steps in process value analysis are examined by details. By develeoped a case, thsese steps are examined too. Especially, performance evaluation that is related to before and after of precess improvement are examined comperatively by using LP model. MS Office Excel programme (solver tool) is used for solving this LP model. [ABSTRACT FROM AUTHOR]

The aim of this study is to measure and evaluate the efficiencies of ship building and maintenance shops performing under one of the Turkish Navy Shipyards. As a result of 6-months-period comparative shop performance evaluations, the study puts forward (1) the comparative efficiency ratings of each job shop, (2) the level of required modifications to the particular input and output values for making inefficient shops more efficient, and (3) the factors that could affect the efficiency scores. Based on the results obtained from the correlation and regression analyses, it is observed that the most important factors influencing the efficiency of job shops are the quantities of lost workforce and unidentified jobs. [ABSTRACT FROM AUTHOR]

Just as typewriter, calculator and telephone received attention by businesses when invented, so did personal computers, and they have been key elements of businesses. Several studies have been conducted to research the impact of computers on productivity of business activities. However, these studies underline that it is rather difficult to measure productivity completely since many factors have an effect on productivity. Present study, having a difference from other studies, sets off the subjective opinions of personal computer users while presenting whether personal computers help them to increase productivity in performing works. [ABSTRACT FROM AUTHOR]