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Artikel Jurnal
Perancangan Alat Penghitung Benih Ikan Berbasis Sensor Optik
Freshwater fish is one of important commodities for the people of Indonesia. High level of freshwater fish consumption in Indonesia leads to an enormous amount of freshwater fish embankment business. These freshwater fish embankment business are supported by fries cultivation business. One of the…
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Artikel Jurnal
Mechanical Properties Transformation On Zr54Al17Co29 Bulk Metallic Glass by Partial Crystallization
Study on biomaterials is recently essential for rapid development of medical application and Zr54Al17Co29 BMGbecomes promising candidate due to the lack of toxic elements. Partial crystallization by isothermal annealing at SCL region was used to variate the crystallinities of BMG. The structural…
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Artikel Jurnal
Analysis of Proton Conducting SOFC–Micro Gas Turbine Hybrid System with Anode and Cathode Recycling and Fueled by Ethanol
This paper presents a hybrid system that consists of a pSOFC (proton conducting SOFC) stack, a micro gas turbine (MGT), a combustor, a compressor, a heat exchanger, and an external steam reformer. This simulation is based on thermodynamic analysis and is developed using Matlab/Simulink/Thermolib…
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Artikel Jurnal
Perbaikan Layout Mesin Produksi Longsong Munisi menggunakan Metode Systematic Layout Planning dan Blocplan (Studi Kasus : Divisi Munisi - PT. Pindad (Persero))
Layout of the existing machines using cell system has been applied since 2005 and the machine operators have known the weaknesses, so it is necessary to improve the layout of the machines. This study was conducted to improve the machines layout cartridge case production by using Systematic Layout…
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Artikel Jurnal
Pengaruh Ukuran Butir Pasir Besi dan Volume Air Laut pada Absorber Type Fins Solar Destilation terhadap Produktifitas Air Tawar
The needs of clean water is especially increased for the living in coastal. Because of that, a simple equipment and low cost operation is needed. Distillation is a method to convert sea water to fresh water by using solar energy. Various research on absorbent plate solar still has been done to…
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Artikel Jurnal
Analisis Kekuatan Bending dan Kekuatan Impact Komposit Epoxy Diperkuat Serat Pelepah Lontar
Natural fibers have been considered as reinforcement in composite materials which is environmentally friendly fiber instead of fiberglass. The use of natural fibers in the composite material is currently growing, along with the increasing use of such materials are widespread ranging from household…
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Artikel Jurnal
Analisis Penyerapan Energi Crash Box Pola Origami pada Pengujian Frontal Impact Posisi Angular Frontal
In the car, the body structure is designed in such a way so as to transfer and absorb energy. This serves to minimize the result of this accident related to kinetic energy. This needs a system to absorb the kinetic energy maximally, so as a result of a frontal collision events that can be reduced…
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Artikel Jurnal
Rancang Bangun Mesin Pengiris Talas Semir
Talas semir is a superior commodity in Sumedang. Talas semir can be made into various type of snacks such as chips. The best quality of Talas semir chips can be produced by using the best cutting machine. Based on some experimental results of the cutting machine for producing talas semir chips, the…
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Artikel Jurnal
Pengembangan Wearable Robotic Arm Input dan Virtual Instrument untuk Pengendalian dan Pemantauan Lengan Robot
This paper investigate the integration of wearable robotic arm input (WRAI) with virtual instrument (VI) for controlling and monitoring the manipulator. The WRAI was designed by following the contours of human arms and equipped with five potentiometers as the sensor. The sensors were placed…
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Artikel Jurnal
Karakteristik Komposit Serat Kulit Pohon Waru (Hibiscus Tiliaceus) Berdasarkan Jenis Resin Sintetis terhadap Kekuatan Tarik dan Patahan Komposit
The fiber composite of hibiscus's bark is the material that comprises synthetic resin as a matrix and hibiscus's bast fiber as reinforcement. The hibiscus's bast fiber have the excellent potency regarding the strength that is employed as reinforcement. Four types of synthetic resin were used in…
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Artikel Jurnal
Pengaruh Ball Peening terhadap Kekerasan Baja Tahan Karat AISI 316L
In this work, ball peening was performed in order to evaluate its effect on the AISI 316L hardness. The process was conducted by employing AISI E52100 Chrome Steel ball which has hardness 752 HVN as bomber. In this research ball peening process was performed at three different nozzle pressure (6…
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Artikel Jurnal
Analisis Perpindahan Panas pada Kolektor Pemanas Air Tenaga Surya dengan Turbulence Enhancer
One of the solar energy utilization is solar water heater. To improve the performance of solar water heater, modifications were applied to dual absorber plate and flow channels to increase heat absorption. The aim of this study is to analyze the heat transfer of the collector solar water heater…
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Artikel Jurnal
Simulasi Numeris Karakteristik Pembakaran CH4/CO2/Udara dan CH4/CO2/O2 pada Counterflow Premixed Burner
The high amount of CO2 produced in a conventional biogas reactor needs to be considered. A further analysis is needed in order to investigate the effect of CO2 addition especially in thermal and chemical kinetics aspect. This numerical study has been held to analyze the effect of CO2 in CH4/CO2/O2…
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Artikel Jurnal
Pengaruh Tekanan Vacuum terhadap Kekuatan Tarik dan Kekuatan Lentur pada Biokomposit Serat Purun Tikus (Eleocharis Dulcis)
In particular composite materials made from polymer biocomposite material which is now becoming an alternative to the metal and is very widely applied in the manufacturing industry because of its corrosion resistance and high strength ratio of specific gravity. Natural fiber began to be used for…
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Artikel Jurnal
Efek Longitudinal Vortex Dihasilkan dari Vortex Generator Jenis Concave Delta dan Rectangular Winglet terhadap Perbaikan Perpindahan Panas: Visualisasi Aliran/Studi Eksperimental
The generation of longitudinal vortex to enhance the rate of heat transfer is a passive method that has been widely considered recently. This consideration is based on improving the energy efficiency and optimum design of a heat exchanger. Therefore, this study is focused on the experimental test…
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Artikel Jurnal
Pengaruh One Direction Pre-Tension pada Reinforcement Fibre terhadap Kekuatan Tarik dan Impact Fibre-Powder Reinforcement Hybrid Composite
Nowadays, industrial manufacturing needs environmentally and friendly material and has special properties which are difficult to obtain from the metal material. Composite is one of the alternative materials that can be used to meet those needs. A structural composite material consisting of a…
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Artikel Jurnal
Pengaruh Rasio Step pada Sudden Enlargement Channel terhadap Heat Flux Kondensasi di Porous Media
One of the most significant parameter in air conditioning problems is air humidity. A porous media can be used as a heat exchanger component in order to increase the heat transfer performance which is significantly depends on the heat flux values inside of them. To determine the heat flux value, a…
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Artikel Jurnal
Pengaruh Rasio Laju Alir Gas Nitrogen-Hydrogen serta Gas Pressure pada RF Plasma Nitriding terhadap Surface Hardness Spesimen SUS304
RF Plasma nitriding was done on the specimen SUS304. This research had aim to obtain a high surface hardness value as a result of flow rate ratio of Nitrogen-Hydrogen. The experimental research consisted of three models. Each experimental model used varying parameters and constant parameters. Micro…
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Artikel Jurnal
Hardening Baja AISI 1045 Menggunakan Gel Aloe Vera Sebagai Media Pendingin
Quenching is a cooling method of heat treatment for metal hardening. Quenching refers to the process of rapidly cooling metal parts from the austenitizing or solution treating temperature, typically from within the range of 815 to 970 °C for steel. The selection of a quenchant medium depends on the…
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Artikel Jurnal
Peningkatan Efisiensi Sistem Pemanasan dengan Penambahan Grid pada Perforated Burner
Efficiency of a domestic gas stove depend on the kind of burner material and its configuration. In this study, a material in the form of a grid has been inserted into combustion chamber to modify flame characteristics. Grids made from stainless steel with different thickness were inserted between…