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460 articles for “design efficiency”
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A S-BAND “SQUQRE SHAPE” METAMATERIAL STRUCTURE TO ENHANCE THE PERFORMANCE OF RECTANGULAR MICROSTRIP PATCH ANTENNA
Abstract: A communication system always involves a spectrum or band of frequencies and as such the question of bandwidth is an important parameter in RMPA. But miserable efficiency, narrow bandwidth and high return loss are the major drawbacks of Micro-strip patch antenna. Even though, to enhance the characteristic parameter of RMPA, metamaterial is founded as a better candidate. The main motive of this design is to improve the distinctive parameter of …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 1, 2015 · pp. 14–19 Read article
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Reduced the size of RectangularMicrostrip patch Antenna by Using Double Sided Metamaterial
Abstract: This paper, present the design of double sided metamaterial which reduces the size of Rectangular Microstrip patch antenna. First of all, design the Rectangular Microstrip patch antenna(RMPA) then simulate it with and without metameterial. Without Metamaterial, Rectangular Microstrip patch antenna, is resonate at 5.54 Ghz and its gain is 1.79db , directivity is 4.81dBi and its total efficiency is 30% and with Metamaterial RMPA is resonate at frequency is 2.24 …
Published in International Journal of Microwave Engineering and Technology · Vol. 2, Issue 2, 2016 · pp. 28–34 Read article
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Challenges in implementing an Opportunistic Adaptation approach in Bangkok
Abstract: The 2011 floods should have been a wake-up call for Bangkok, yet the question is what the situation is now, eight years later. Did this disaster cause a change in our attitude to climate change or not? Opportunistic adaptation (OA) is a tool used in urban planning, designed to help stakeholders share a common vision of what/when/where can happen in the future, given uncertain conditions like, e.g., climate change. The …
Published in International Journal of Water Resources Engineering · Vol. 5, Issue 2, 2019 · pp. 28–45 Read article
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Analytical Development of Electrochemical Biosensors for Real-Time Monitoring of Environmental Contaminants
Abstract: The increasing awareness of environmental pollution has necessitated the development of efficient monitoring systems for the detection and quantification of contaminants. Electrochemical biosensors have emerged as powerful tools due to their high sensitivity, rapid response, and cost-effectiveness. This paper reviews recent advancements in the development of electrochemical biosensors specifically designed for real-time monitoring of environmental contaminants. The design and fabrication of electrochemical biosensors involve the integration of biological recognition elements …
Published in International Journal of Analytical and Applied Chemistry · Vol. 9, Issue 2, 2023 · pp. 31–37 Read article
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IMPLEMENTATION OF VOTING MACHINE TO AVOID RIGGING USING VERILOG HDL
Abstract: With almost 970 million eligible voters, India holds the title of the largest democratic nation. The traditional voting method that used paper was a lengthy process and highly susceptible to mistakes. Electronic voting machines (EVMs) make voting easy, safe, and quick. It decreases the human effort, errors in the time of vote counting. But in the existing EVM there is lack of authentication, i,e one’s vote can be stolen by …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 12, Issue 1, 2026 · pp. 27–32 Read article
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Durability and Resilence of Hyperloop Infrastructure
Abstract: ABSTRACT: The Hyperloop is a revolutionary concept for high-speed ground transportation that involves passenger pods traveling through low-pressure tubes at near-supersonic speeds. Originally proposed by SpaceX in 2013, the concept aims to offer a cost-effective and faster alternative to conventional rail systems and short-haul air travel. This study addresses a critical component of the Hyperloop's success—structural durability. Key concerns include material fatigue due to repetitive high-speed movement, pressure fluctuations within …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 11, Issue 2, 2025 · pp. 16–25 Read article
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Recent Trends and Channel Estimation in High Performing Massive MIMO Systems for 5G
Abstract: The enormous multiple-input and multiple-output (MIMO) technology in 5G networks is discussed in this study in order to increase network coverage and capacity. The paper will also go through the design of 5G networks and the problems they face. Multiple input and output technology along with smart antennas enabling the increased value of throughput and capacity gains in 5G regime of communication. The paper will cover channel estimation, capacity, and …
Published in International Journal of Broadband Cellular Communication · Vol. 8, Issue 2, 2022 · pp. 14–18 Read article
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Analysis of Sun Path and Effective Shading Co-efficient using ECOTECT Software for Coimbatore
Abstract: Sun path of location depends on its latitude which creates a major heat impact on the surface of a building. This paper analyses the sun path of Coimbatore (11°N, 77°E), and its shading coefficient results as predicted by the ECOTECT software and Solar Tool. These sun path graphical presentations and calculated predictions of the shading coefficient can give a clear idea to the Architect/Designer to propose shading design, which can …
Published in International Journal of Architecture and Infrastructure Planning · Vol. 6, Issue 1, 2020 · pp. 18–27 Read article
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Graph Theory and Matrix Method for Development and Design of Combustion Engine
Abstract: The idea upon which any methodology development is pillared leads to real time decisions if simulation and assessment is as per the standard codes set by standard organizations. More near is the system with standard system more it is appropriate for operation. In the present work system under consideration is internal combustion engine. Fuel cost is one of the most important parameter in life cycle analysis of the internal combustion …
Published in International Journal of Composite and Constituent Materials · Vol. 2, Issue 1, 2016 · pp. 16–25 Read article
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Smart Fingerprint Attendance System Using Raspberry Pi
Abstract: This paper presents the design and implementation of a smart fingerprint-based attendance system tailored for classroom environments. The system uses a Raspberry Pi 3 A+, a fingerprint sensor, and Google Sheets for automatic, real-time logging of student attendance. The system offers an efficient, secure, and user-friendly solution to track student attendance while minimizing errors associated with traditional manual methods. It eliminates the need for paper-based attendance management and integrates seamlessly …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 11, Issue 2, 2025 · pp. 20–27 Read article
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Modelling and Control of Higher Rating DC Motor with GA-Based Optimized PID Controller
Abstract: The usage of the common kind dc motors has its extended past. It has been used in the productions for numerous ages currently. They deliver humble means and exact method of controller. In addition, they have high efficiency and have a high starting torque versus falling speed characteristics which helps high starting torque and helps to prevent sudden load rise. But with such characteristics, the dc motors have some deficiencies …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 1, Issue 1, 2015 · pp. 23–30 Read article
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Modeling and Simulation of n-ZnO/i-ZnO/Si p-i-n Heterojunction Solar Cell
Abstract: This paper presents 2D numerical simulation of n-ZnO/i-ZnO/p-Si p-i-n heterojunction solar cell using commercial device simulation software ATLAS from Silvaco Inc. This work deals with the design and performance optimization of p-i-n heterojunction solar cell using two dimensional computer aided design (TCAD) tool ATLAS from Silvaco Inc. The device has been simulated and analyzed with respect to the I-V characteristics of the device in dark and illuminated condition. Further figure …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 2, Issue 2, 2016 · pp. 1–7 Read article
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Mechanisms and Applications of Self-Healing Materials: Towards Sustainable Structural Solutions
Abstract: Self-healing material is an innovative invention within material science, which possesses the ability for self-repair of damages with a view to prolong the life of various structure types. Bioinspired self-healing materials and their applications is reviewed in this study by underlining their examples and significance for infrastructure, aerospace, automotive, marine, and energy sectors. The main mechanisms are intrinsic and extrinsic self-healing processes, along with advanced fabrication techniques such as microencapsulation, …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 11, Issue 1, 2026 · pp. 1–26 Read article
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Home Automation Energy Efficient System
Abstract: In automation systems, the use of wireless technologies offers attractive profits, although introducing a numeral of new technological challenges. The paper discusses these features for home and building automation applications. In this paper we study mobile home automation, a field that emerges from an integration of mobile application platforms and home automation technologies. Related standards are gauged. In this paper the KNX/EIB is extended through wireless technology over IEEE 802.15.4. …
Published in International Journal of Broadband Cellular Communication · Vol. 1, Issue 1, 2015 · pp. 28–36 Read article
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Tensile, Flexural and Impact Properties of Luffa Cylindrica and Pineapple Reinforced Polymer Matrix hybrid Composite
Abstract: Composites are emerging as realistic substitutes to the metal alloys in many applications like automobiles, marine, aerospace applications, sports goods, etc. Fiber composites offer many benefits such as low specific gravity, tensile strength and modulus, comprehensive strength, better fatigue strength, etc. Owing to the low specific gravity, the strength weight ratio and modulus weight ratio of these composite materials are markedly superior to those of metallic materials. Composites also afford …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 2, 2018 · pp. 49–55 Read article
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Development and Modification of 2-Stroke IC Engine
Abstract: Today world is concerned more about saving the environment, everywhere precautionary measures have been taken up to reduce pollution. Major amount of air pollution is caused by mechanical animals running on roads; they contribute to most of the air pollution, hence, engineers today to focus on how to build an eco-friendly engine which can reduce the pollution caused by vehicles. A compressed air engine works on air as fuel to …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 7, Issue 1, 2021 · pp. 8–11 Read article
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Fault-Tolerant Modular Power Converter for Large-Scale Renewable Energy Integration
Abstract: The rapid expansion of large-scale renewable energy systems has significantly increased the demand for highly reliable and fault-resilient power electronic converters capable of maintaining stable grid operation under component failures and fluctuating renewable power generation. This paper proposes a Fault-Tolerant Modular Power Converter (FTMPC) for large-scale renewable energy integration, incorporating a modular multilevel architecture, intelligent fault diagnosis, and adaptive reconfiguration control to ensure uninterrupted power conversion. The proposed converter continuously …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 2, 2026 Read article
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Aluminum Alloy as Sacrificial Anode for Corrosion Protection: A Review
Abstract: Aluminum sacrificial anodes are widely used for cathodic protection in marine, offshore, and energy applications due to their light weight, high current efficiency, and favorable electrochemical potential. Pure aluminum, however, rapidly passivates in seawater, reducing protective performance. Alloying with elements, such as zinc, indium, gallium, tin, and bismuth, improves activation, ensures uniform dissolution, and stabilizes long-term behavior. This review examines the influence of alloying elements on electrochemical performance, microstructure, and …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 2, 2025 · pp. 1–13 Read article
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Effectiveness of cardiac rehabilitation program to enhance quality of life on patients with post myocardial infarction (2015)
Abstract: Introduction: Myocardial infarction is a life threatening heart disease and a major public health problem all over the world. Health is defined by WHO is a state of complete mental and physical, social well-being and not merely the absence of disease or infirmity and this applies as a whole to rehabilitation of cardiac patients. Cardiac rehabilitation (CR) is the enhancement and maintenance of cardiovascular health through individualized programs designed to …
Published in International Journal of Cardiovascular Nursing · Vol. 4, Issue 2, 2018 · pp. 27–35 Read article
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Suitability of Bamboo as a Reinforcing Material in Flexible Pavement Design
Abstract: In Engineering Programme, soil stabilizations very much important for gaining proper knowledge about ground improvement. Ground improvement technique is one of the challenging task involving inputs from geotechnical engineering sector. In our project, we had to go through different techniques for improving the engineering characteristics of the ground. Through this project an endeavor attempt was made to improve the ground using bamboo as a reinforcing material for flexible pavement considering …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 1, 2017 · pp. 47–69 Read article