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87 articles for “operating expense”
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Study of PBX and its Subsequent Development in Intercom System
Abstract: A private branch exchange (PBX) is a telephone exchange that serves a particular business or office. It operates as a connection between a private organization - usually a business organization and the public switched telephone network (PSTN). However, the particular development of PBX in its prototype model is both expensive and not feasible. Hence, proposed project work is limited to study of PBX and a suitable prototype model it’s devised …
Published in Journal of Control & Instrumentation · Vol. 8, Issue 1, 2017 · pp. 12–16 Read article
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Design of Gear Tooth Rounding and Chamfering Machine
Abstract: All movable gears which mesh with another gear require either rounding or chamfering. The operation is generally applied to the teeth of spur gears for use in sliding gear transmission of automotive vehicles and machine tool Gear boxes where the gears are moved on their longitudinal axes meshing with another spur gear. In current scenario the mechanically operated machines require lot of settings, which is time consuming and requires one …
Published in Trends in Machine design · Vol. 4, Issue 3, 2017 · pp. 38–44 Read article
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Zero Trust Security Governance by Utilizing Identity and Access Management
Abstract: The Zero Trust Paradigm, a more stringent approach to network security, operates on the fundamental concept of “Never Assume, Always Authenticate.” It is currently being implemented in different countries to align with their national cybersecurity and access management governance policies. The differentiation of these Zero Trust systems is contingent upon factors such as awareness, infrastructure, expenses, and security demand. Additionally, the identity-based access management models within the Zero Trust system …
Published in International Journal of Mobile Computing Technology · Vol. 1, Issue 2, 2023 · pp. 6–17 Read article
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Development and Performance Evaluation of a Multi-Purpose Power Tiller for Small-Scale Farming Applications
Abstract: This project outlines the development and testing of a multi-purpose power tiller tailored for small-scale farmers. Designed to reduce labor and enhance productivity, the machine integrates features for ploughing, seedbed preparation, and lightweight transportation. Key parameters including depth of tillage, working width, and fuel consumption were evaluated during field trials and benchmarked against manual operations. Results highlight its efficiency and potential for improving rural agricultural practices. Along with its primary …
Published in Journal of Automobile Engineering and Applications · Vol. 13, Issue 2, 2026 · pp. 14–19 Read article
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Physical Modeling of Mass Transport Processes in Extraterrestrial Landscapes
Abstract: Currently the progress in physical models based on mass transport in both the Earth's surface and extraterresterial landscape has been growing. It is a frame work involving different natural and made made processes including aeline process, fluid flow process, magmal movement, Geomagnetic stroms, and clould flow modesl etc. These process encorporates Physical models and appraches which help to simulate, compute and experiment in order to reduce complexity. However, their operating …
Published in International Journal of Universe · Vol. 1, Issue 2, 2025 · pp. 47–54 Read article
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Conservation of Agricultural Products in Sub-Saharan Zone by Ecological Off-grid Cold Room, Case of Senegal
Abstract: In this article, we have studied and dimensioned a solar cold room for the preservation of potatoes in sub-Saharan areas. The conservation of post-harvest agricultural products is a major issue in this part of Africa, hence the need to focus our research on off-grid refrigeration installations. In this work, we focused on the use of local materials such as agricultural residues and terracotta for the construction of solar cold rooms. …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 2, 2024 · pp. 24–35 Read article
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Suspension System with Combined Leaf and Helical Spring: A Review
Abstract: A good suspension system of any automobile vehicle must have minimum deflection, minimum weight, low maintenance and low operating cost with some other fine properties. Springs are major element of any suspension system and first line of its defense. If the suspension springs are rigid enough, they will not absorb road shocks efficiently, and if they are more flexible, then they will keep vibrating for a longer time even after …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 28–36 Read article
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Multi-directional Wind Turbine System Optimisation and Mathematical Modelling for India’s Sustainable Wind Energy Development
Abstract: The global trend towards green energy usage is expanding. Wind power is clean and sustainable and may compete with fossil fuels in the electricity market. This project's manufacturing cost must match fossil fuels or other energy sources to be competitive. The main investment in wind generation is in machinery and infrastructure. Wind power becomes competitive by lowering energy costs through turbine design, building, and operation. Understanding wind turbine activity over …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 1, Issue 1, 2023 · pp. 32–42 Read article
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Hydrogen and oxygen generation by Photoelectrolysis and Special Constructed Photoelectrolyzer Powered by Light Energy for Hydrogen Electric Vehicle Charging
Abstract: Today, pure hydrogen is produced by various industrial methods, including: steam reforming of methane and natural gas; coal gasification; biotechnology; electrolysis of water, etc. The most effective method for obtaining pure hydrogen is the use of photoelectrolysis of an aqueous solution of an electrolyte, flowing in a photoelectrochemical cell. In this method, the hydrogen in the photoelectrochemical cell is produced directly from solar energy. In a photoelectrochemical cell, a silicon …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 14, Issue 1, 2024 · pp. 38–46 Read article
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Data-driven Approaches to Mineral Resource Management Using AI: A Brief Review
Abstract: The role of Artificial Intelligence (AI) in the mineral resource sector has become increasingly significant over the past few years, as industries seek to optimize and modernize their operations. AI encompasses a variety of technologies and techniques, such as machine learning, deep learning, and expert systems, that are now widely used in mineral exploration, resource estimation, and mine management. These AI-driven approaches have brought about a transformative shift, enhancing efficiency, …
Published in International Journal of Minerals · Vol. 2, Issue 1, 2025 · pp. 25–29 Read article
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Solar-Powered Autonomous Multipurpose Agricultural Robot with Pesticide Sprayer
Abstract: Plowing and sowing are just a few of the many chores that take place in the agricultural field. The equipment needed to do the aforementioned tasks is expensive and difficult to use. Therefore, the Indian agricultural system should be supported by developing a system that will save time and labor. The goal is to create a robot that runs totally on solar power and is capable of seeding seeds, plowing, …
Published in International Journal of Machine Systems and Manufacturing Technology · Vol. 2, Issue 2, 2024 · pp. 1–8 Read article
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Employing Sweep Frequency Response Analysis for Diagnosing Condition of Power Transformer
Abstract: The power transformer being very expensive plays a tectonic role in power system. Reliability is apogee in power system. Any failure fringing power transformer may lead to substantial monetary loss depending on how much duration it is out of service. On-line monitoring and prognosis of power transformer helps the associated delegate to take decision on subject of maintenance, replacement or continuity of its operation. From accessible vivid methods for condition …
Published in Trends in Electrical Engineering · Vol. 6, Issue 3, 2016 · pp. 26–31 Read article
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Concept Design of a Simple Marine Dry Dock (Without Gate)
Abstract: This article explores various options for facilities used in underwater ship repair, including Dry Dock, Ship Lift systems, Floating Dry Docks, and Simple Slipway systems with cradle and winch. Such facilities are crucial to any ship repair operation. Among these, Dry Docks are known for their high capital cost and limited capacity to repair only one ship at a time. This makes them less appealing unless there is substantial demand …
Published in Journal of Offshore Structure and Technology · Vol. 11, Issue 3, 2024 · pp. 46–69 Read article
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Petroleum Geothermal energy and process of mines extract
Abstract: Mining consumes a lot of energy, and because so much money is spent on fuel and energy transportation, energy costs are particularly expensive for remote mines that are off the grid. The necessity to switch to greener power sources to lessen its environmental impact is becoming increasingly clear to the mining industry as well. Geothermal energy is a crucial, albeit frequently underutilized, energy source for the mining sector as it …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 35–40 Read article
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Design and Fabrication of Multi-operation Vegetable Cutting & Slicing Machine
Abstract: The purpose of this gadget is to reduce human effort and make the task of cutting and slicing vegetables considerably easier and faster. Its key characteristics are that it is totally automated, portable, uses less power, and has replaceable stainless, sharp blades. The machine consist of a reciprocating piston arrangement which works is chopping the vegetable and on other hand we constructed a rotating slicer for slicing purpose. A disciplined …
Published in Trends in Machine design Read article
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An Overview of New Coastal Research Vessel (N-CRV) Dry Dock and Construction
Abstract: A New Coastal Research Vessel (N-CRV) is a specialized ship designed for scientific research in fields like oceanography, geology, biology, and atmospheric studies, equipped with specific facilities and accommodations for sea missions. This paper discusses the coastal research ship dry-dock, construction, and design process, which involves three stages: concept, preliminary, and contract design. N-CRV must utilize scientific cruise, Exclusive Economic Zone (EEZ) survey, deployment, data collection, and seawater sample collection …
Published in Journal of Offshore Structure and Technology · Vol. 11, Issue 3, 2024 · pp. 1–11 Read article
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AI-Assisted Optimization of Supersonic Airfoil Shapes Using CFD Coupling
Abstract: This paper presents a novel framework for optimizing supersonic airfoil geometries through integrated artificial intelligence and computational fluid dynamics coupling. Traditional gradient-based optimization methods for high-speed aerodynamic shapes suffer from computational expense and convergence difficulties in non-convex design spaces. The proposed methodology employs a deep neural network surrogate model trained on high-fidelity Reynolds-Averaged Navier-Stokes solutions to approximate aerodynamic performance metrics across the design space. A hybrid particle swarm-genetic algorithm searches …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 8–17 Read article
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A Review Study on CPU-Optimized Parameter-Efficient Fine-Tuning for Large Language Models to Increase Accuracy Using LoRA
Abstract: The fast proliferation of large language models (LLMs) has increased the need to optimize the process of fine-tuning, but the existing workflows that require a graphics processing unit (GPU) are still expensive, intensive, and unavailable to most researchers. This paper is driven by the desire to have a more cost-efficient and democratized version by examining a CPU-efficient implementation of parameter-efficient fine-tuning (PEFT) based on low-rank adaptation (LoRA). The major purpose …
Published in Recent Trends in Parallel Computing · Vol. 13, Issue 1, 2026 · pp. 32–38 Read article
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A Review on Cascade Tripping and Islanding Scheme
Abstract: Large black outs typically involve sophisticated and cascading chains of events. Giant blackout though sporadic, is expensive to society with estimates of direct prices up to billions of bucks. There also are indirect prices like attainable social disruptions and also the propagation of failures into different infrastructures like communications, water system, fossil fuel and transportation. The very important importance of electrical power to our society motivates continuing attention to maintaining …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 24–27 Read article
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Voltage and Frequency Control of a Self Excited Induction Generator Using VSI
Abstract: In remote areas of a country where it is impossible or too expensive to access main power lines, one solution to obtain electric power is to use a small stand-alone hydro power plant. In such a situation, the turbine is been driven by a steady flow of water in a river. It is preferable to use a self-excited induction generator, due to its low cost an ruggedness. The voltage and …
Published in Trends in Electrical Engineering · Vol. 4, Issue 2, 2014 · pp. 13–20 Read article