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International Journal of Technology
Scopus
ISSN 2086-9614 · Universitas Indonesia · 1,913 articles in the index
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Journal Article
Semi-Analytical Approach to Analyze the Hull Girder Ultimate Strength Considering the Influence of Side Hopper
A bilge hopper is one of the sections on ship bottom construction. The side hopper has an angle required in the national classification at the bilge hopper. This angle depends on the type of the ship’s hull, whether the ship has a single or double hull construction. This study aims to assess the…
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Journal Article
Efficient Block Partitioning Method for Spatial Scalable Encoding in Versatile Video Coding
The rapid increase in video consumption, further accelerated by the coronavirus disease 2019 (COVID-19) pandemic, has driven a significant rise in demand for live streaming services and video delivery across various devices, such as smartphones and tablets. Screen size and display resolution of…
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Journal Article
Towards Reliable Osteoarthritis Classification: Fine-Tuned Convolutional Neural Networks, Vision Transformers, and Ensemble Learning Approaches
Osteoarthritis (OA) is a widespread degenerative condition affecting millions of people worldwide. Early detection and precise classification are crucial for effective disease management. This study investigated the use of deep learning techniques to classify the severity of knee OA from X-ray…
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Journal Article
Land Value Capture Potential of Jakarta’s LRT: Early Post-Operational Evidence from Residential Property Prices in TOD Zones
Jakarta’s recent light rail transit (LRT) development has been promoted as part of a broader transit-oriented development (TOD) agenda. However, empirical evidence on whether early-stage operations influence surrounding land values is limited. This study examines residential land prices within 1 km…
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Journal Article
Prostaglandin Production in Marine Diatom Heterologously Expressing Cyclooxygenase
Prostaglandins (PGs) are biologically active molecules produced from C20 polyunsaturated fatty acids through the sequential actions of cyclooxygenase (COX) and various PG synthases. PGs are used for pharmaceutical purposes to induce labor and treat glaucoma. Currently, the market size of PGs was…
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Journal Article
Unravelling How pH Sequence Shapes Green-Synthesized TiO2 Nanoparticles for Dye-Sensitized Solar Cells
In this study, the influence of pH adjustment sequence during green synthesis on the structural evolution of TiO2 nanoparticles was investigated, specifically examining whether the solution pH was modified before or after the addition of titanium(IV) isopropoxide (TTIP). Jatropha multifida leaf…
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Journal Article
Engineering the Quantum Era: From the Discovery of the Nobel Prize to a Technology Platform
The 2025 Nobel Prize in Physics 2025 delivered a message with immediate relevance for engineers: quantum behavior can be realized in engineered circuits. John Clarke, Michel H. Devoret, and John M. Martinis “for the discovery of macroscopic quantum mechanical tunneling and energy quantization in an…
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Journal Article
Innovative Design of Dental Mouth Props: Exploring Functional Features and Material Enhancements for Improved Performance
Dentists play a crucial role in maintaining patients’ oral health. However, prolonged dental procedures often cause discomfort, such as jaw muscle fatigue and anxiety. Dental mouth props are used to keep the mouth open during procedures, but they often lead to complaints regarding comfort, size…
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Journal Article
Improving Nuclear Power Plant Safety Assessment: Review of Methods and Approaches
Safety assessment is a critical aspect in the design of nuclear power plants (NPPs). The results of this assessment can be applied to improve NPP operational safety. This study aimed to review the implementation of NPP safety assessment approaches and their limitations. Challenges and strategies to…
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Journal Article
Next-Generation Nutrient Delivery: Physicochemical Insights into Multicomponent Liposomes
Innovative food-grade lipid-based formulations incorporating multicomponent nutrients: vitamin C with vitamin D3 and vitamin D3 with calcium, were developed. Morphological characteristics, particle size, and physical stability were assessed using transmission electron microscopy (TEM), dynamic…
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Journal Article
Design Concept of Fiber Optic Bending Sensor using Incohrent Optical Frequency Domain Reflectometry and Two Photon Absorption Process in Avalanche Photodiode
In various fields, bending sensors based on optical fibers have gained significant attention. These include structural health monitoring and shape measurement of medical devices such as catheters. The characteristics of fibers, such as thinness, flexibility, light weight, and immunity to…
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Journal Article
Overlapping in Wire-arc Directed Energy Deposition Using Rotating Electrode
Adoption of additive manufacturing has enabled the fabrication of high-performance components with complex geometries. Tungsten Inert Gas (TIG) welding technology has been introduced to enhance the mechanical properties of the final products; however, it presents significant limitations in terms of…
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Journal Article
Seasonal Stratification and Depth Effects on Chub Mackerel Fishery Yields
Assessing how environmental and anthropogenic factors jointly influence fishery yields is crucial for targeted fishery management under climate change. By integrating Gray Relational Analysis (GRA) with Bayesian Generalized Linear Mixed Models (GLMM) to quantify how sea surface temperature (SST)…
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Journal Article
Detection of Weld Defects in Steel Pipes Using Coaxial Magnetic Induction Sensor: Numerical Simulation and Experimental Validation
Weld defects in high-pressure piping systems are critical initiation points for leakage, rupture, or explosion, leading to severe safety hazards and economic losses. Therefore, reliable and early detection methods are essential for ensuring the integrity of industrial pipelines. Radiographic…
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Journal Article
A Zeroth-Order Stochastic Gradient Descent Method for Communication-Efficient Federated Learning
Federated learning (FL) has emerged as a key paradigm for decentralized data privacy-preserving machine learning. However, substantial communication costs often hinder its practical application, especially as deep learning models scale to millions or billions of parameters. This communication…
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Journal Article
Cell Detection Methods to Enhance the Sorting Rate of a Large-Cell Sorter
Shrimp farming is widespread in Indonesia, and the risk of mass mortality due to disease outbreaks remains a significant concern. Recent research aimed at developing disease-resistant shrimp through genome editing has made remarkable progress. Additionally, the need for techniques that can…
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Journal Article
Usability, Humanization, and Perceived Service are Predictors of Customer Satisfaction in Chatbot Interactions
Companies’ online presence has driven the use of chatbots in digital channels as a solution to expand customer service. These systems make it possible to offer satisfying experiences and handle requests on a large scale. Even when adopting this technology, companies must regularly assess whether…
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Journal Article
A Cost–Benefit Analysis of Importing Complete Prefabricated Steel Structure Buildings from China to New Zealand
The domestic construction industry in New Zealand has long been challenged by persistent material shortages and elevated construction costs. In contrast, prefabricated steel structure buildings from China—backed by substantial technological accumulation, mature industrial scale, and strong…
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Journal Article
Influence of Partial Fine Aggregate Replacement with HDPE Plastic Waste on Concrete Compressive Strength: Melt Processing Vs. Water Quenching
High Density Polyethylene (HDPE) plastic waste, particularly from plastic bags, poses serious environmental challenges due to its non-biodegradable nature. This study evaluates HDPE as a partial fine aggregate replacement in concrete, focusing on the effect of two processing methods, melt…
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Journal Article
A Hybrid SEM-ANN Model for Predicting Purchase Intention Toward Recycled PET Products: Evidence from Indonesian Generational Segments
The escalating plastic waste crisis in Indonesia calls for a transition toward a circular economy, particularly through the adoption of recycled Polyethylene Terephthalate (rPET) products. Despite their environmental benefits, consumer acceptance remains limited due to concerns over quality, cost…
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