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Artikel Jurnal
FEASIBILITY STUDY OF GROUND ENHANCEMENT MATERIAL (GEM) PRODUCTION STARTUP AS AN IMPORT SUBSTITUTION BASED ON TECHNOLOGICAL AND FINANCIAL ASPECTS
Ground Enhancement Material (GEM) plays a crucial role in lightning protection systems by effectively channeling lightning voltage into the ground. Given Indonesia's reliance on imports, it is essential to explore domestic alternatives for GEM production. This study assesses the feasibility of…
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Artikel Jurnal
PENGARUH PENAMBAHAN RADIUS PADA KECEPATAN DAN FREKUENSI SLUG DI DAERAH DOWNSTREAM T-JUNCTION MINICHANNEL
Multiphase flow channel is commonly applied in various industrial contexts, including lab-on-a-chip, nuclear power plants, microelectronics cooling systems, and chemical microreactors. Equipment ranging from mini to micro sizes plays a vital role in enhancing heat and mass transfer processes during…
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Artikel Jurnal
PENGARUH JUMLAH ISIAN PROPELAN TERHADAP KECEPATAN PROYEKTIL MUNISI KALIBER 40X46 MM NON-LETHAL
Many kinds of non-lethal ammunitions are developed in the last fourty years. The 40x46 mm Non-lethal ammunition is one of several ammunitions ready to be used in riot control. This type of ammunition can be used to subdue the target by implementing impact force. When developing non-lethal…
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Artikel Jurnal
PENGARUH WATER COOLANT TERHADAP EFEKTIFITAS RADIATOR PADA MESIN TOYOTA KIJANG SERI 4K
The cooling system of an engine utilizes a radiator to regulate the temperature of the coolant, whice absorbs heat from engine to maintain its optimal operating temperature. The aim of the research is to evaluate the effectiveness of radiator using defferent types of water coolants, including…
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Artikel Jurnal
EFFECT OF DIAMETER BEARING MOUNTS TO STRESS CONCENTRATION FACTOR ON TRUCK GEARBOX CASING
The present study examines the effect of diameter bearing mounts to the stress concentration factor. Three commercial truck gearbox casings were selected for redrawing using CATIA. The gearbox casing is then converted into a FEM model in ANSYS. It has a bore ratio (the ratio of the largest diameter…
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Artikel Jurnal
IMPLEMENTASI STOKASTIK PADA INVESTIGASI PENGARUH I/D TERHADAP PERILAKU ANTARMUKA ALIRAN BERLAWANAN ARAH DI GEOMETRI 1/30 HOT LEG PWR MENGGUNAKAN SENSOR KONDUKTANSI
A small leakage in the primary circuit of a nuclear power plant reactor may trigger the occurrence of countercurrent flow which probably develops into a flooding regime followed by the zero penetration caused core cooling failure. During extensive studies in the flooding phenomena in the PWR hot…
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Artikel Jurnal
EVALUASI KONVERSI DAN DISTRIBUSI ENERGI PADA RESEARCH TEST ENGINE TIPE 240PE BERBAHAN BAKAR GASOLINE JENIS PERTALITE
Gasoline fuel is a kind of fossil fuel that is still the primary fuel for vehicles and motorcycles nowadays. Demand for fuel continues to increase from time to time, so an effort is needed to save the use of fuel. This research is intended as an initial study to determine the quantity of heat…
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Artikel Jurnal
PLANNING AND SCHEDULING IN AUTOMATIC TRAIN SIGNALING MAINTENANCE: A REVIEW
The development of automatic railway signaling systems that use moving block systems has grown rapidly. The moving block signaling system, which is a development of the fixed block system, has functions such as automatic control, shortening headways, increasing operating capacity, and railway…
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Artikel Jurnal
RANCANGAN SISTEM HIDROLIK PADA FRONT ATTACHMENT ALAT PERAGA MINI EXCAVATOR
As one of the heavy equipment, an excavator is used to facilitate construction work and streamline time and energy. Hydraulic excavators are widely used in construction, mining, quarrying, and forestry applications. A hydraulic excavator is a type of heavy equipment that has several functions such…
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Artikel Jurnal
PENGARUH VARIASI TEMPERATUR FURNANCE BRAZING TERHADAP SIFAT MEKANIK DALAM PEMBUATAN GRINDING ROLL MATERIAL FCD 500 DAN NI-HARD1
This research was conducted on nodular cast iron FCD 500 and white cast iron Ni-Hard1 in the manufacturing of grinding rolls. These rolls were joined together using the furnace brazing method, with CuZn 35 filler metal placed between the two parent metals. The pressure applied in this experiment…
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Artikel Jurnal
A RECENT REVIEW ON THE FAILURE ANALYSIS OF BOILER TUBE
The failure analysis in the industrial systems i.e. power plan, oil, and gas companies, has been reported by many researchers. One of the most reported has occurred in the Boiler system. Among the components of the boiler, problems, and failures often took place in the tube. The purposes of the…
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Artikel Jurnal
REVIEW OF SPEED PROFILE OPTIMIZATION METHODS FOR ENERGY EFFICIENCY IN TRAIN
Improving energy efficiency in the transportation system is an important goal in facing the challenges of climate change and limited energy resources. Electric trains are a promising alternative for reducing greenhouse gas emissions and dependence on fossil fuels. Speed profile optimization has…
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Artikel Jurnal
SIMULASI NUMERIK ALIRAN FLUIDA PADA KINCIR AIR MENGGUNAKAN METODE SLIDING MESH INTERFACE
This research is aimed to investigate the accuracy and cost-effectiveness of numerical simulation method for the study of flow in a waterwheel system by comparing the results to the results of experiment, as well as by comparing the computational load of various solution schemes. The simulation is…
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Artikel Jurnal
STUDI PENGARUH PERLAKUAN ALKALI TERHADAP SIFAT MEKANIK DAN MORFOLOGI KOMPOSIT SERAT PELEPAH KELAPA SAWIT BERMATRIK UREA FORMALDEHIDA
Palm frond residue is one of the valuable wastes from palm oil plantations. This refuse can be repurposed and transformed into materials for producing acoustic composites. This study investigates the mechanical and morphology characteristics of a composite material reinforced with natural fiber…
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Artikel Jurnal
PIROLISIS MENGGUNAKAN SCREW SEBAGAI PRESSURE DROP DAN SIRIP PADA KONDENSOR
The main factor that can determine the pyrolysis reaction is reactor type. However, the operational system of the pyrolysis reactor has a problem due to the low energy supply and low thermal conductivity of plastic. In addition, the particle agglomeration phenomenon occurs due to the presence of a…
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Artikel Jurnal
REVIEW: VARIOUS TREATMENTS NAOH, SEA WATER, FUMIGATION, LIQUID SMOKE TO IMPROVE TENSILE STRENGTH AND SURFACE MORPHOLOGY OF NATURAL FIBER
This article is a literature review of several studies oriented toward the treatment of natural fiber to improve the surface morphology and tensile strength of the fiber. The method used is to review several studies that describe the physical and mechanical properties of natural fiber with…
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Artikel Jurnal
IMPLEMENTASI DAN PENGUJIAN PROTOTIPE TURBIN JENIS PROPELLER UNTUK PEMBANGKIT LISTRIK TENAGA MIKROHIDRO
The implementation of a small-scale Micro-Hydro Power Plant which considering a 2-meter water head river will be discussed in this research. Therefore, a Micro-Hydro Power Plant with a Propeller turbine type was implemented. The turbine components include the turbine wheel, blades, guide vanes…
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Artikel Jurnal
OPTIMIZATION OF INJECTION MOLDING PARAMETERS TO MINIMIZE SHRINKAGE AND MAXIMIZE TENSILE STRENGTH IN THE RECYCLING PROCESS OF DISPOSABLE FACE MASKS
Recycling used face masks into useful products is an alternative way to reduce the accumulation of medical waste during the COVID-19 period. The main objective of this study was to determine the effect of injection molding parameters of barrel temperature, molding temperature, and cooling time on…
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Artikel Jurnal
PREDICTION OF LOCATOR PIN ERRORS IN FACING PROCESS USING NEURAL NETWORK AND SUPPORT VECTOR REGRESSION
Facing is a common process in machining. Facing process error could be the result of a three-pin error in 3-2-1 principle. Measuring pin error is difficult to carry out periodically. This study discusses how to identify pin errors based on the objects deviation after facing using neural network and…
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Artikel Jurnal
KAJIAN EKSPERIMENTAL PENGARUH PARAMETER OPERASI TERHADAP PEMECAHAN GELEMBUNG DAN KINERJA PEMBANGKIT GELEMBUNG MIKRO TIPE SWIRL
In this study, we present the bubble breaking mechanism of the rotating flow in the swirl type microbubble generator (MBG) on the resulting performance in this case the oxygen dissolution rate. This type of MBG is an aeration technology and has been developed in recent years by utilizing the…