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47 results on '"Salam, Rahmat"'

1. Analysis of variation of compaction on the formation of micro structure before sintering process.

Author

Suhendi, Prijono, Kusdi, Salam, Rahmat, Tampubolon, Muhammad Ahsan, and Jaim

Subjects
COMPACTING, SINTERING, GRAIN size
Abstract

This study aims to find the effect of compaction variations on the shape of the material with SEM in the form of micro-structures. The results of this compaction variation will determine how efficient the power is needed in the formation of a sample, ODS materials are made from various mixtures of powder materials. The powder materials commonly used are Fe and Cr materials and then mixed with other materials, the powder material that has been milled is then compacted with the specified load variation, this is done so that the material is solid before sintering. The variation of compaction carried out in this study with loads of 10 Tons, 20 Tons, 40 Tons and 60 Tons was observed how much influence on the grain size of the material, from the results of metallographic and SEM tests showed at a pressure of 10 Tons the grains were still in the form of medium spheres for 20, 40, 60 Tons of material are seen to bind to each other, for 40 and 60 Tons are not too much change compared to 20 Tons. [ABSTRACT FROM AUTHOR]

Published
2024
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3. IMPROVED DYNAMIC BOTANICAL AIR PURIFIER WITH LIGHT EFFECT FOR REDUCING CO2 CONCENTRATION IN CHAMBER

Author

Dwi Sundari, Carolina, primary, Fajri Hadi Syahputra, Muhammad, additional, Millatina Rachmawati, Lulu, additional, Jalasena, Andhika, additional, Ananta Hasmul, Nabil, additional, Chandra, Indra, additional, Awaludin Salam, Rahmat, additional, Octaviani, Yeni, additional, Rizzi Ani, Zahwa, additional, Fitria Suyatna, Sefani, additional, Abd Aziz, Azrina, additional, and Arif Burhanudin, Zainal, additional

Published
2024
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8. Analysis of Spatio-temporal PM2.5 and CO2 Concentrations Distribution with PSCF in the Greater Bandung Air Basin

Author

Adiwidya, Andre Suwardana, primary, Aziz, Reza Mochamad, primary, Afryan, Muhammad Beno, primary, Alexandra, Tania Christiana, primary, Permadi, Mario Gilang, primary, Jannah, Nur Rawdotul, primary, Amalia, Dini Rizqi, primary, Sopian, Nur Putri Megalia, primary, Lee, Vivian, primary, Salam, Rahmat Awaludin, primary, and Chandra, Indra, primary

Published
2023
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27. PENGUJIAN KONFIGURASI PIEZOELEKTRIK PENGHASIL TEGANGAN LISTRIK DARI ENERGI MEKANIK

Author

Ekawita, Riska, Salam, Rahmat Awaludin, Kusumawardani, Nolla, and yuliza, elfi

Abstract

There are enormous of natural resources as alternative electrical energy to be developed in Bengkulu province. It’s located in west coast of Sumatera Island and faces on Indian Ocean make Bengkulu province abundant wind energy. Piezoelectric is a material that produces electrical while the pressure applied on the surface. In this research, a preliminary study of characteristic of piezoelectric was carried out to produce electrical from mechanical energy generated from wind. The output voltage from some piezoelectric configurations was measured. Furthermore, a prototype of wind energy conversion to electrical energy was enlarged to search piezoelectric characteristic too. The measurement results show that the series piezoelectric configuration produces a higher electric voltage than the parallel arrangement. The greater the mechanical energy received on the piezoelectric surface, the higher the electric voltage generated by the piezoelectric. Four piezoelectric in series configuration produce 3.5 volts of voltage while 3.6 joules mechanical energy applied on their’s surfaces. By using the prototype of wind energy conversion, it is found that the wind velocity influence the obtained of voltage. There is a linear relationship between wind speed and the voltage generated. &nbsp

Published
2021

35. IMPLEMENTASI KEBIJAKAN PARTISIPASI MASYARAKAT DALAM PENCEGAHAN KEBAKARAN DI KECAMATAN PASAR MINGGU KOTA ADMINISTRASI JAKARTA SELATAN.

Author

Abdillah, Fauzi Hamdi, Samudra, Azhari Aziz, Tuti, Retnowati W. D., and Salam, Rahmat

Abstract

Copyright of Journal of Syntax Literate is the property of Ridwan Institute 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
2022

45. Measurement of Glucose in Blood Using a Simple Non Invasive Method

Author

Abidin, Muhammad Sainal, Rajak, Abdul, Salam, Rahmat Awaludin, Munir, Muhammad Miftahul, and Khairurrijal

Abstract

The amount of glucose in blood of human beings should be controlled. The excess or deficiency in glucose of human blood can cause a variety of diseases such as diabetes, heart disease, cholesterol and blindness. We report the design and development of a simple spectrometer as a non-invasive method to determine glucose in urine. Note that glucose in urine, which is caused by exceeding glucose level from the threshold in the renal system, is correlated with that in blood since glucose is a part of acid hydrate in the digestive tract and is absorbed by the intestine in the blood circulation. Urine containing glucose is reacted with a benedict solution that in turn affects the turbidity of urine according to the glucose concentration in the urine. Urines with various turbidities were then placed in transparent containers sitting between a light emitting diode (LED) as a light source and a photodiode as a detector of the simple spectrometer. As the concentration of glucose in the mixture solution became higher, the mixture solution developed more turbid and the output voltage of the photodiode would then be smaller. Moreover, the color of LED affects the magnitude of light intensity that can be transmitted by the sample.

Published
2015
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46. Web-Based Surface Level Measuring System Employing Ultrasonic Sensors and GSM/GPRS-Based Communication

Author

Munir, Muhammad Miftahul, Salam, Rahmat Awaludin, Widiatmoko, Eko, Supriadani, Yundi, Rahmadhani, Andri, Latief, Hamzah, and Khairurrijal

Abstract

Water surface level should get special attention as water can cause disasters such as flood when its surface exceeds a certain level. A real time early warning system to monitor water surface level is necessary for avoiding severe effects of flood to human life. A web-based water level measuring system using an ultrasonic sensor can be an alternative choice for developing the early warning system. It is known that the system has advantages in the installation and maintenance compared to other systems. This paper discusses the design of a water level measuring system integrated with an internet web server. Ultrasonic sensors are used to measure the water surface level. A GSM / GPRS-based communication system is applied for sending measured water levels to a web server. The results indicate that the measurement data are in accordance with the water levels manually obtained. The results also show that the system works real time.

Published
2015
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47. Development of a Wireless Sensor Network for Temperature and Humidity Monitoring

Author

Munir, Muhammad Miftahul, Mataubenu, Kostan D.F., Salam, Rahmat Awaludin, Latief, Hamzah, and Khairurrijal

Abstract

The development of a wireless sensor network system for temperature and humidity monitoring is described. The system is composed of two main parts, namely an end device and a coordinator. The end device consists of an SHT10 sensor, an XBee Pro RF module, an ATMega8535 microcontroller, and a battery. The coordinator consists of an XBee Pro RF module and an SIM900 GSM module. The temperature and humidity data were sent by the end device to the coordinator and they were forwarded to the web server via GPRS communication using the SIM900 GSM module. In order to the data stored in the database can be accessed in real time via the internet, a web server is developed by using CodeIgniter (CI). It was shown that each end device can communicate very well with the coordinator. Moreover, the data are received in accordance with the timing of delivery was given.

Published
2015
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