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View article: Performance Evaluation of Canola Oil-based Nano-Cutting Fluid with TiO2 Nanoparticle Additive in CNC Milling Process with Minimum Quantity Lubrication (MQL) System
Performance Evaluation of Canola Oil-based Nano-Cutting Fluid with TiO2 Nanoparticle Additive in CNC Milling Process with Minimum Quantity Lubrication (MQL) System Open
Mineral oil-based cutting fluid is the most commonly used type due to its superior performance, but it has a large environmental impact. Therefore, this study explores the performance of canola oil with TiO2 nanoparticle additives in the M…
View article: Integrated experimental and computational fluid dynamics study of graphene nanoplatelet-based nanofluids modified with surfactants in photovoltaic-thermal heat exchangers
Integrated experimental and computational fluid dynamics study of graphene nanoplatelet-based nanofluids modified with surfactants in photovoltaic-thermal heat exchangers Open
This study investigates the effects of graphene nanoplatelet-based nanofluids, modified with various surfactant types and concentrations, on the thermal performance of solar thermal systems. The nanofluids were synthesized and characterize…
View article: Comparison of the Physical Performance between Infrared and Hybrid Welding of Copper Wire Hairpins
Comparison of the Physical Performance between Infrared and Hybrid Welding of Copper Wire Hairpins Open
With the rise in demand for electric vehicles, hairpin welding is gaining popularity for its efficient manufacturing of critical EV motor components. Due to its high thermal conductivity, copper is commonly used. The tip of the hairpin can…
View article: Upaya Peningkatan Prestasi Belajar IPS Siswa Kelas VII SMP Negeri 3 Ngawi Melalui Pendekatan Learning Community Tahun 2024/2025
Upaya Peningkatan Prestasi Belajar IPS Siswa Kelas VII SMP Negeri 3 Ngawi Melalui Pendekatan Learning Community Tahun 2024/2025 Open
This study aims to improve student learning achievement in Social Sciences (IPS) subjects through the application of the learning community approach to class VII students of SMP Negeri 3 Ngawi in the 2024/2025 academic year. This study is …
View article: Enhanced Efficiency of Photovoltaic Thermal Systems using Graphene Nanoplatelets Nanofluids
Enhanced Efficiency of Photovoltaic Thermal Systems using Graphene Nanoplatelets Nanofluids Open
Photovoltaic thermal (PV/T) systems have become a promising technology for using solar radiation to generate thermal and electrical energy. However, the overheating tendency of PV cells can reduce the electrical output of PV/T systems, the…
View article: Optimalisasi Pemasangan Trafo Sisip untuk Perbaikan Drop Tegangan Pelanggan pada Trafo RTP 033 ULP Peureulak PT PLN (Persero)
Optimalisasi Pemasangan Trafo Sisip untuk Perbaikan Drop Tegangan Pelanggan pada Trafo RTP 033 ULP Peureulak PT PLN (Persero) Open
View article: Influence of Different Nanoparticles on Thermophysical Properties and Wear Resistance of Corn Oil-Based Cutting Fluid in MQL-CNC Milling Machining
Influence of Different Nanoparticles on Thermophysical Properties and Wear Resistance of Corn Oil-Based Cutting Fluid in MQL-CNC Milling Machining Open
Vegetable oil-based cutting fluids have emerged as a promising innovation in machining operations, supporting the advancement of sustainable and eco-friendly manufacturing practices. This study delves into the development of a biolubricant…
View article: Investigation of physicochemical and magnetic properties of zinc ferrite (ZnFe2O4) with different ultrasonic power for enhancement of thermal conductivity of refrigeration oils
Investigation of physicochemical and magnetic properties of zinc ferrite (ZnFe2O4) with different ultrasonic power for enhancement of thermal conductivity of refrigeration oils Open
Zinc ferrite (ZnFe2O4) nanoparticles have gained significant attention globally, particularly due to their superior chemical properties, magnetic properties, and heat transfer referring to their particle size. The sonochemical technique is…
View article: Enhancing mechanical properties of aluminum foam through optimized artificial aging: temperature and time effects
Enhancing mechanical properties of aluminum foam through optimized artificial aging: temperature and time effects Open
This research focuses on optimizing artificial aging parameters to enhance the mechanical properties of aluminum foam, specifically targeting industries where lightweight yet durable materials are critical. The primary object of this study…
View article: The Factors Affecting the Morphology of Kota Lama Tangerang
The Factors Affecting the Morphology of Kota Lama Tangerang Open
Morphological changes in old town areas often occur due to a lack of sensitivity to the importance of preserving historical traces, as seen in Kota Lama Tangerang. This area has undergone significant transformation influenced by ancient tr…
View article: Microstructure and Hardness Study of Al6061 Resulting from Artificial Aging
Microstructure and Hardness Study of Al6061 Resulting from Artificial Aging Open
This research aimed to improve the mechanical properties of Al6061 alloy through artificial aging heat treatment. The method used in this research was a laboratory-based experimental method. The Al6061 alloy was heated in a muffle furnace …
View article: Analysis of Crystallinity and Morphology of Bacterial Cellulose/Chitosan Based Composite Film
Analysis of Crystallinity and Morphology of Bacterial Cellulose/Chitosan Based Composite Film Open
Pineapple peel can be effectively utilized in fermentation process to produce bacterial cellulose (BC). This study uses pineapple peel extract to produce BC, combined with chitosan to form composite films. The study aims to analyze the cry…
View article: Morphology and Structure of Bagasse Fiber after Chemical Treatment
Morphology and Structure of Bagasse Fiber after Chemical Treatment Open
Sugarcane as a raw material for the sugar industry plays a strategic role in the Indonesian economy. Higher production of sugar provides sugarcane waste namely bagasse, as a natural fiber, that has potential for a composite material. This …
View article: Investigating Students’ Speaking Skills through Traditional Story-Based Digital Storytelling into Genre-Based Approach (GBA)
Investigating Students’ Speaking Skills through Traditional Story-Based Digital Storytelling into Genre-Based Approach (GBA) Open
Digital storytelling has been widely used in the English learning process as a way to improve language skills, especially speaking skills, but the influence of digital storytelling on students' speaking skills in traditional stories that i…
View article: Optimization of preparation parameters of palm oil-based nanofuel with multi wall carbon nanotube (MWCNT) for stability using Taguchi-grey relation analysis (GRA) combination
Optimization of preparation parameters of palm oil-based nanofuel with multi wall carbon nanotube (MWCNT) for stability using Taguchi-grey relation analysis (GRA) combination Open
This research optimizes the preparation parameters of palm oil-based nanofuel and Multi Wall Carbon Nanotube (MWCNT) to produce stable nanofuel. The parameters optimized include stirrer speed, sonication time, sonication power, and surfact…
View article: Modulating the holding time of hardening process in Q-P-T heat treatment: An experimental study on mechanical properties of medium-carbon steel plate
Modulating the holding time of hardening process in Q-P-T heat treatment: An experimental study on mechanical properties of medium-carbon steel plate Open
The metal heat treatment industry has seen substantial growth, with market projections increasing by USD 15.18 billion from 2022 to 2027, driven by advancements in technology. The iron and steel industry significantly contributes to this g…
View article: Teachers' perceptions of the Kampus Mengajar program in enhancing student literacy and numeracy
Teachers' perceptions of the Kampus Mengajar program in enhancing student literacy and numeracy Open
The Kampus Mengajar Program is one of the initiatives designed by the government to address literacy and numeracy issues among students in Indonesia through collaboration between university students and elementary school teachers. This stu…
View article: Pembelajaran Berbasis Masalah dengan Pendekatan CRT (Culturally Responsive Teaching) Berbantuan Media Google Sites untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa SMA
Pembelajaran Berbasis Masalah dengan Pendekatan CRT (Culturally Responsive Teaching) Berbantuan Media Google Sites untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa SMA Open
Penelitian ini bertujuan guna mengembangkan kemampuan pemecahan masalah matematis siswa dengan menerapkan pendekatan CRT berbantuan Google Sites. Jenis penelitian ini adalah penelitian tindakan kelas dengan subjek kelas X-9 SMA Negeri 9 Pa…
View article: Characterization of Hydroxyapatite Derived from Scallop Shell Waste Synthesized by Sonochemical Method with Different Temperature Calcination
Characterization of Hydroxyapatite Derived from Scallop Shell Waste Synthesized by Sonochemical Method with Different Temperature Calcination Open
One common bio-ceramic material used in the biomedical industry is hydroxyapatite. Because of its crystallographic and molecular resemblance to the hard tissues of the human body, hydroxyapatite is thought to form. Scallop shells are one n…
View article: Influence of Ball Milling Duration on Physicochemical Properties and Compressibility of Calcium Powder Derived from Snail Shells (Achatina fulica)
Influence of Ball Milling Duration on Physicochemical Properties and Compressibility of Calcium Powder Derived from Snail Shells (Achatina fulica) Open
Ball milling duration has an important role in the synthesis of calcium nanoparticles. The duration of this process can influence the properties of the calcium powder. This study investigates the influence of ball milling duration on the p…
View article: Worldwide Research Trend on Steel Casting: A Visualization and Future Research Directions
Worldwide Research Trend on Steel Casting: A Visualization and Future Research Directions Open
Aims: In this study, we conducted a bibliometric study about steel casting between the year 2000-2023. We carried out a bibliometric analysis of sand casting, investment casting, die casting, and squeeze casting in which optimization and s…
View article: Influence of additive nano calcium carbonate (CaCO3) on SAE 10W-30 engine oil: A study on thermophysical, rheological and performance
Influence of additive nano calcium carbonate (CaCO3) on SAE 10W-30 engine oil: A study on thermophysical, rheological and performance Open
Researchers have used nanomaterials as additives in base oil to improve its specifications, especially to minimize wear and friction during its applications. In this study, calcium carbonate (CaCO3) nanoparticles were selected as an additi…
View article: Comparative Analysis of the Effect Dual Spark Ignition and Single Spark Ignition on Performance and Exhaust Emissions in Bioethanol-Fueled Engines
Comparative Analysis of the Effect Dual Spark Ignition and Single Spark Ignition on Performance and Exhaust Emissions in Bioethanol-Fueled Engines Open
Bioethanol is an alternative fuel that has a high octane value of around 100 to 110, making it difficult to be applied to spark ignition engines directly. So, it is necessary to make adjustments, including increasing combustion efficiency …
View article: Biodiesel production from waste cooking oil using calcium oxide derived from scallop shell waste
Biodiesel production from waste cooking oil using calcium oxide derived from scallop shell waste Open
Biodiesel is one of the alternative forms of diesel fuel and can be obtained using the transesterification process of waste cooking oil with a catalyst to accelerate the reaction. The heterogeneous catalyst from waste scallop shells is use…
View article: Fatigue crack growth rate and mechanical properties of one-step double-side friction stir welded AA6061-T6
Fatigue crack growth rate and mechanical properties of one-step double-side friction stir welded AA6061-T6 Open
Friction Stir Welding (FSW) is commonly used in transportation industries but faces challenges when joining thick plates. To address this, double-side FSW (DFSW) has been introduced, involving two steps: FSW on one side, flipping the plate…
View article: Evolution of Residual Stress, Crystal Orientation, and Texture on Preheating Weld Treatment of Low Carbon Steel ASTM A572 Grade 42
Evolution of Residual Stress, Crystal Orientation, and Texture on Preheating Weld Treatment of Low Carbon Steel ASTM A572 Grade 42 Open
Preheating is one type of heat treatment on the material prior to starting the welding process by increasing the temperature of the material. It is used to reduce the cooling rate during the welding processes to minimize the risk of residu…
View article: Morphology and structure of sawdust waste after adding magnetic nanoparticles
Morphology and structure of sawdust waste after adding magnetic nanoparticles Open
Sengon (Albizia chinensis) is a type of forest plant that grows quickly and is widely used to meet human needs. The large number of uses of Sengon wood causes sengon wood waste, such as sawdust, to increase. The study’s aim is to analyze t…
View article: A Brief Study of the Carbon Counter Electrode for Photosensor based on DSSC
A Brief Study of the Carbon Counter Electrode for Photosensor based on DSSC Open
We investigate the fabrication of photosensor devices based on dye sensitized solar cells (DSSC). DSSC photovoltaic cells use solar light energy to trigger chemical reactions as a source of electrical energy. DSSC has several advantages, n…
View article: Analysis of Rapid Entire Body Assessment (REBA) and Nordic Body Map (NBM) on Work Fatigue
Analysis of Rapid Entire Body Assessment (REBA) and Nordic Body Map (NBM) on Work Fatigue Open
View article: Exploring peat’s physicochemical properties: Unveiling its potential as a fuel alternative
Exploring peat’s physicochemical properties: Unveiling its potential as a fuel alternative Open
The huge peatland areas of around 21 Mha in Indonesia have the potential to be a future fuel alternative. Linear with that purpose, exploring the physical and chemical properties is critical for understanding its fuel's potential. This wor…