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1380 articles for “working efficiency”
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Experimental Analysis of Concentric Heat Exchanger with Dimpled Tube
Abstract: In this work, an experimental and CFD analysis of concentric heat exchangers with smooth andspherical dimple pipes in different mass streams with water as a working medium is presented.Heat transfer technology refers to various methods used to increase the heat transfer ratewithout significantly affecting the overall system performance. Over the past decade, severalstudies have reported indirect technology for heat transfer. The present study on the change ofthe inner tube to …
Published in Journal of Thermal Engineering and Applications · Vol. 7, Issue 3, 2020 · pp. 7–12 Read article
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Ceria and Modified Ceria: A Reusable Catalyst for the Green Synthesis of 2,3-diphenyl Quinoxaline at Room Temperature
Abstract: Simple, highly versatile and efficient synthesis of 2,3-diphenylquinoxalines is achieved from benzil and o-phenylene diamine using ceria and modified ceria as the catalyst. Modification of ceria is done using different weight percentage of zirconia. The catalysts are characterized by XRD, FT-IR, BET surface area, TGA and EDX-SEM. The advantages of this method are short reaction times, milder conditions and easy work-up. The product could be separated from the heterogeneous catalyst …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 3, 2014 · pp. 1–11 Read article
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Integrated Microfluidic Platform for Accelerated Catalytic Analysis: Enhancing Sensitivity and Efficiency
Abstract: In this study, we introduce a groundbreaking advancement in microfluidic technology tailored for catalytic and catalytic analysis. Our innovative microfluidic device integrates novel features aimed at augmenting sensitivity and accelerating analysis while ensuring reliability and user-friendliness. The hallmark of our device is the fusion of sample preparation and analysis functionalities within the microfluidic chip. By embedding sample preconcentration and purification modules, we achieve remarkable enhancements in sensitivity and detection limits. …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 2, 2023 · pp. 51–27 Read article
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Performance Comparison of FBG as Dispersion Compensator with Different Frequency Chirp in an Optical Fiber Link
Abstract: AbstractRecent day’s optical communication is a most popular technique for transmission of data. We share most of our data through optical network, but the main huddle in performance is dispersion. However, the compensation of dispersion by Dispersion Compensating Fiber (DCF) and Fiber Bragg Grating (FBG) can boost significantly the system. Our proposed work investigates and analyzes the performance of optical transmission system at 1550 nm using FBG as dispersion compensator. …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 3, 2018 · pp. 1–7 Read article
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High Modulation Performance of a Designed InGaN Based 405 nm Multi-Quantum Well Violet Laser
Abstract: AbstractIn this work, the modulation performance characteristics of a designed 405 nm InGaN based multi-quantum well (MQW) Violet Laser are optimized and presented by varying injection current and differential gain. A maximum output power of 222.53 mW and a maximum resonance frequency of 18.79 GHz of the laser are obtained for 117 mA injection current, where, the differential gain is 4x10-16cm2. The differential quantum efficiency of the laser is obtained …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 2, 2013 · pp. 7–13 Read article
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Physics-Informed Neural Networks for Multiphysics Analysis of Biomedical Polymer Composite Systems
Abstract: Physics-Informed Neural Networks (PINNs) offer an effective model of solving coupled multiphysics equations in biomedical polymer composite systems, which are data-driven. In the given work, the PINN method is presented where equations of elasticity, mass diffusion, and heat transfer are integrated to model the complex processes that take place in composite biomaterials. The neural network loss is specified to include the governing partial different equations which enables both the system …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Durability study of flyash induced polypropylene fiber reinforced concrete
Abstract: The need for sustainable and durable construction materials has led to the use of supplementary cementitious materials and synthetic fibers in concrete. The use of fly ash and polypropylene fibers (PPF) could improve the mechanical properties and durability of the concrete while also reducing the environmental impact of concrete production. Flyash and fibres are the recognised replacement which can add to the unique properties to the Portland cement, The use …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Enhancement of Bandwidth and Gain Dielectric Resonator Antenna : A Review Paper
Abstract: This Paper presents an analysis of investigation on dielectric resonator antenna (DRA’s) over the last three to four decades. In every decade the research would come up with new trends. The current status of the dielectric resonator antenna technology is now reviewed. Always the evaluation has been done on the foundation of around vital parameters that include Bandwidth, Efficiency, realized Gain, Dielectric constant, dimensions, and DRA material used. This paper …
Published in Journal of Advances in Shell Programming · Vol. 5, Issue 2, 2018 · pp. 20–25 Read article
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Path Planning using DDPG Algorithm and Univector Field Method for Intelligent Mobile Robot
Abstract: Path planning is one of the most fundamental challenging tasks in robotics and its purpose is to lead the robot from the initial position to the goal without any collision through the optimal route. With the rapid development of artificial intelligence technology, AI has been widely studied for robot path planning and a method by deep reinforcement learning (DRL) was proposed. In general, path planning methods with DRL need discrete …
Published in International Journal of Advanced Robotics and Automation Technology · Vol. 2, Issue 2, 2024 · pp. 1–9 Read article
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Statistical Modeling of Heat Transfer and Fluid Dynamics: Application in Mechanical Engineering Design
Abstract: Understanding and optimizing the intricate processes involved in heat transfer and fluid dynamics—two concepts essential to mechanical engineering design—require statistical modeling. Engineers can forecast, regulate, and enhance the performance of systems including heat exchangers, turbines, cooling mechanisms, and different fluid machinery by using statistical approaches. In order to address uncertainties, variability in material properties, boundary conditions, and operational parameters, this work investigates the integration of statistical modeling tools in the …
Published in Research & Reviews : Journal of Statistics · Vol. 13, Issue 2, 2024 · pp. 18–22 Read article
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Entangled Shields: Securing Digital Systems in the Quantum Cryptographic Revolution
Abstract: Quantum computing utilizing principles of superposition and entanglement is poised to revolutionize the computational landscape, presenting unprecedented challenges and opportunities across various disciplines. Among these, cryptography stands at the forefront due to its reliance on computational hardness assumptions, which Quantum algorithms, such as Grover’s and Shor’s, can efficiently exploit. This study explores theoretical foundations and practical applications of quantum-safe cryptographic primitives, such as lattice-based cryptography, hash-based signature schemes, code-based systems, …
Published in Recent Trends in Parallel Computing · Vol. 12, Issue 2, 2025 · pp. 33–43 Read article
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Advances in Shell Programming: Techniques, Tools, and Emerging Trends
Abstract: Shell programming has undergone a significant transformation, shifting from simple command-line interactions to a mature, versatile scripting environment that supports modern computing needs. Over time, shells such as Bash, Zsh, and PowerShell have expanded far beyond basic task execution, evolving into powerful tools capable of handling complex automation workflows, system configuration tasks, and cross-platform orchestration. These environments now offer improved error handling, stronger security features, integrated performance-monitoring options, and more …
Published in Journal of Advances in Shell Programming · Vol. 12, Issue 3, 2025 Read article
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A New Computational Method for Dust and Gas Dynamics in Protoplanetary Discs
Abstract: The simultaneous evolution of dust and gas in protoplanetary discs regulates essential events in planet formation, such as dust accumulation, migration, and the initiation of gravitational instabilities. Nevertheless, precisely modelling this interaction continues to provide a significant computing problem owing to the extensive variety of spatial and temporal scales involved. In this study, we introduce an innovative computational framework for simulating dust-gas dynamics in protoplanetary discs, integrating a two-fluid hydrodynamical …
Published in International Journal of Universe · Vol. 1, Issue 2, 2025 · pp. 35–46 Read article
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Behaviour of Staggered Opening Shear wall in Tall buildings
Abstract: Now a days we are seeing a rapidly increasing the cost of land not only in India even all over the world and also we need to preserve our important agricultural productive land too. All contributed towards both residential and commercial structures growth in vertical direction that is high rise structure. Behavior of these high rise structures especially with shear walls during hazards like earthquake, wind and lateral loads due …
Published in Journal of Construction Engineering, Technology & Management · Vol. 11, Issue 1, 2021 · pp. 35–44 Read article
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Optimal Capacity of Pump Storage System for Standalone Green Microgrid Interconnection with Main Grid in Deregulated Power Sector
Abstract: The energy crisis requires more generation capability, and is more importance to the storage technologies. To overcome this shortage of energy, pump storage system is used in the power system with great storing capacity up to this time. The isolated or regional grid in remote areas probably depends on renewable power sources such as wind; solar, geothermal, tidal, etc. with its availability is the main power resources. It is quite …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 100–114 Read article
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Power Quality Issues and its Mitigation Technique in Integration of Renewable Energy with Grids: Review
Abstract: To reduce the carbon emissions Renewable Energy sources are widely included into power generation. Now a days penetration of Renewable Energy Sources into gird is increased and it is a major concern for power engineers to maintain the power quality. Due to integration of Solar and Wind energy Systems in Grid, the power quality issues arise and grid may become weaker. Power grid integration of renewable energy sources is achieved …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 1, 2022 · pp. 31–35 Read article
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A Study on Oil and Gas Processing Facility in a Part of Upper Assam Basin
Abstract: Crude oil that is produced from the oilfields cannot be directly sent to the refineries for further processing. It must undergo additional processing before being sent to refineries to prevent pipeline corrosion, resolve transportation issues and satisfy the crude specification of the refinery which can be achieved by oil and gas processing facility. It is an integral part of the upstream petroleum industry, which meets the required specifications of oil …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 1–6 Read article
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Numerical Simulation for Strength Increase on Flat Plate Impacted By Bird Using ANSYS-AUTODYN
Abstract: Bird strike term indicates the collision between an aircraft and bird as occurred during flight can lead to structural damage of an aircraft. This work leads to improvement in aircraft structure by improving its strength and will be able to satisfy the FAR requirements. First of all considering a square flat plate and impacting the impactor at a velocity of 90 m/s performing analysis in ANSYS-AUTODYN software. Results validate with …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 38–43 Read article
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Analysis of the Output Power in Offshore Bladeless Vibrational Wind Turbines
Abstract: This work focuses on studying and analyzing the power generation in offshore bladeless vibrational wind turbines. In previous work, we developed detailed research about the vibrational wind turbine design and configuration; in this new work, we analyze the energy supply from this type of turbine to achieve a better understanding of the behavior and potential of bladeless vibrational wind turbines (BVWT) as an additional power source in offshore wind farms. …
Published in Journal of Offshore Structure and Technology · Vol. 11, Issue 3, 2024 · pp. 12–23 Read article
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Using Shell Script Automize the Services of Server for Deployment
Abstract: AbstractNowadays, every company is trying to produce their server and trying to automize their server. Many companies prefer a Linux-based server and those who are having a windows server are switching to Linux based server, the reason is that the Linux server is very secured, high speed, cost-efficient, and privacy is maintained on a Linux server. Big companies like Google, Twitter, Facebook, Amazon, IBM, NASA, McDonald’s, missiles and weapons, hackers …
Published in Journal of Advances in Shell Programming · Vol. 7, Issue 3, 2020 · pp. 23–29 Read article