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258 articles for “low density”
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The Role of Majority Functions in Enhancing Full Subtractor Performance in High-Density Logic Circuits
Abstract: In the present trend of very large-scale integration (VLSI) technology, implementing a Boolean function with the fewest number of gates (logic) has always been important. Low power design strategies now provide much more benefits than in the past. Performance, affordability, and dependability may be key issues in this area of technology design. Power dissipation is now recognized as a crucial component in the development of competitive market areas such wireless …
Published in Journal of Semiconductor Devices and Circuits · Vol. 11, Issue 2, 2024 Read article
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Suitability of Local Soil for Low Volume Road Construction: The Case Study of Niger Delta Region, Nigeria.
Abstract: This work describes the suitability of soils located in the Niger delta region of Nigeria for road construction. The soil classification tests as well as tests to determine the moisture-density relationship and shear strength tests were carried out in accordance with British Standards. Also, additional soil data in these localities were obtained from construction and consultancy firms. A total of eighty-three (83) soil data were collected and used for analysis. …
Published in Journal of Geotechnical Engineering · Vol. 5, Issue 3, 2018 · pp. 1–7 Read article
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Design and Analysis of Quantum Dot Solar Cell Using SCAPS-1D Software
Abstract: Compared to conventional solar cells, quantum dot solar cells (QDSCs) have drawn a lot of attention due to their hybrid structure, low production cost, and greater power conversion efficiency. Nevertheless, carrier recombination in the quasi-neutral region (QNR) continues to limit their performance. The electron transport layer (ETL) and hole transport layer (HTL) are two of the layers that are most important in determining the overall efficiency of the device. The …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 17, Issue 1, 2026 · pp. 15–20 Read article
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Performance Evaluation of Brushless DC Motor during Sinusoidal and Trapezoidal Back-EMF Waveform
Abstract: Due to increasing popularity and wide application in the drive system BLDC motor is widely used. An undesirable signal in the brushless dc motor is a ripple in torque, which is in challenging motor control and some machine tools. This article represents the performance evolution of BLDC motor by using the sinusoidal and trapezoidal back EMF waveform for getting the efficient operation of BLDC motor drives. In sinusoidal back EMF …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 3, 2016 · pp. 14–22 Read article
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AI-Driven Intelligent Energy Management System for Enhancing Electric Vehicle Efficiency and Range
Abstract: Electric Vehicles (EVs) are crucial in mitigating the emission of greenhouse gases and facilitating sustainable transportation. Their performance is however limited by the capacity of the battery, unpredictable weather conditions and ineffective use of energy. The paper suggests an AI-based Intelligent Energy Management System (IEMS) to increase EV efficiency and driving range. The suggested system combines machine learning (ML), model predictive control (MPC), and real-time data analytics to optimize power …
Published in International Journal of Electrical Power and Machine Systems · Vol. 4, Issue 2, 2026 Read article
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Power Supply Design Issues for Personnel Computers Application: A Review
Abstract: A power supply should meet various requirements for proper functioning of a PC. Electromagnetic Interface (EMI) causes catastrophic failures resulting in malfunctioning of PC's. It is therefore essential to meet the Electromagnetic Compatibility (EMC) requirements in addition to other design considerations demanded in a high technology system. The computer is operating and transmitting the signal with low voltage, so it is sensitive to Electromagnetic interference of leakage. Since the PC …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 2, 2013 · pp. 37–40 Read article
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High Performance Multi-Valued Logic (MVL)Gate Design Using FinFET
Abstract: CMOS scaling faces challenges such as leakage, power dissipation, and short channel effects. Multi-Valued Logic (MVL) offers higher information density and reduced interconnections. This work presents a FinFET-based MVL gate design that improves electrostatic control, switching speed, and reliability. Simulation results confirm reduced leakage power and enhanced performance compared to conventional logic. The proposed architecture demonstrates scalability for advanced technology nodes. It also shows potential for low-power applications in portable …
Published in Journal of Microelectronics and Solid State Devices · Vol. 13, Issue 1, 2026 · pp. 34–45 Read article
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A Comparative Study on Formaldehyde Detection Capabilities in Pristine Graphene and Ag-doped Graphene Sheet
Abstract: The present work concerns a detailed investigation of the enhanced formaldehyde (also known as methanal) detection by decorating the pristine (or bare) graphene nanosheet with silver (Ag) nano-particle (or foreign Ag atom). The bare graphene sheet was exposed to the formaldehyde vapor forming the formaldehyde-adsorbed pristine graphene sheet (taken as Case-I), and whose results were studied and compared with the outcomes obtained from the formaldehyde-adsorbed Ag-decorated graphene sheet (taken as …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 801–809 Read article
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An Innovative Fuzzy-Enhanced Black Widow Spider Optimization for Energy-Efficient Cluster Communication Through the Selection of the Ideal Cluster Head
Abstract: This paper presents a novel approach to enhance energy efficiency in cluster-based wireless sensor networks (WSNs) by integrating fuzzy logic with the black widow spider optimization (BWSO) algorithm. The focus of the suggested fuzzy-enhanced BWSO approach is on cluster head selection, which is essential for lowering energy consumption and enhancing network performance. The program uses fuzzy logic to assess a number of factors, including network density, node proximity, and energy …
Published in International Journal of Wireless Security and Networks · Vol. 2, Issue 2, 2024 · pp. 28–34 Read article
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Utilization of Fish Excreta for Algae Production
Abstract: AbstractAlgae has been existing on earth since its beginning but its prospective advantages have recently been understood and hence it is now being considered to play a major role in solving some of the most critical problems of the world. However the high cost of algae production is the biggest obstacle in making algae a mainstream candidate for the development of various products. The current study tried to reduce the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 3, 2017 · pp. 9–17 Read article
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Modeling of ZnO Based Nano Sensor Device for Evaluating Electronic Interaction with NO2 Pollutant: Combining Multiphysics Simulation and DFT Study
Abstract: This study focuses on the designing and modeling of a sensor device employing zinc oxide (ZnO) nanowires (NWs), and the evaluation of the chemical response of the same in the presence of nitrogen dioxide (NO2), which is an acute harmful pollutant for human health and environment. Experimentally synthesized ZnO nanostructures were used as the basis for modeling of the ZnO NWs based sensor device along with a single ZnO NW, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 211–219 Read article
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Thermally Regulated Polymer-PCM Composites for Efficient Solar Energy Harvesting and Storage
Abstract: This study investigates the development of high-performance; shape-stabilized polymer composites infused with phase change materials (PCMs) for thermal energy storage in solar energy applications. Polyethylene glycol (PEG-6000) was employed as the core PCM due to its high latent heat and suitable melting point, while high-density polyethylene (HDPE) served as the supporting polymer matrix to provide structural stability. One of the primary limitations of PEG-based PCMs is their inherently low thermal …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 153–163 Read article
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Studies on Mechanical, Thermal Properties, Characterization and UV-Accelerated Weathering of HIPS-PLA Blends using Glycerol as Compatibilizer
Abstract: AbstractHIPS (High Impact Polystyrene) was blended with PLA (poly lactic acid) in three formulations as 80:20, 65:35 and 50:50% (wt%) using a twin screw extruder and by using glycerol (4%) as compatibilizer. Test specimens were prepared by using an injection moulding machine and the mechanical, thermal and electrical properties were determined. The tensile strength first decreases and then increases with increasing percentage of PLA, but lower than that of both …
Published in Journal of Polymer & Composites · Vol. 5, Issue 2, 2017 · pp. 1–11 Read article
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Advances and Challenges in the Development of High-performance Silicon Carbide (SiC) Power Devices
Abstract: Due to its distinct features, silicon carbide (SiC), a wide-bandgap semiconductor material, has attracted a lot of attention lately. SiC has superior electrical characteristics compared to silicon, making it an attractive material for high-performance power electronic devices. SiC-based devices can operate at higher temperatures, higher voltages, and higher switching frequencies, which can result in increased power density and efficiency. Recent advances in SiC device technology have led to the development …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 3, 2022 · pp. 15–20 Read article
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New Topics in Serum Copeptin Levels in Hypertension: Is There an Interrelation with Inflammatory Biomarkers?
Abstract: This study aimed to test the hypothesis that the link between serum copeptin (Cop) levels and hypertension is related to low grade of inflammation and atherosclerosis indices. This observational cross section study was done in the Department of Biology, College of Science at the University of Al-Mustansiriya in Baghdad, Iraq. A total number of 18 healthy subjects (Group I) and 66 patients (Group II) were enrolled in this study. Patients …
Published in Research and Reviews : A Journal of Immunology · Vol. 6, Issue 2, 2016 · pp. 20–28 Read article
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Development of Environmentally Friendly Concrete by Incorporating Rubber and Leather Waste
Abstract: The valorization of post-consumer polymeric waste into high-performance composite materials offers a sustainable strategy for advancing circular economy principles and reducing environmental impacts.This study investigates the feasibility of utilizing recycled crumb rubber from end-of-life tires and leather-derived polymeric waste from the footwear industry as sustainable fillers in polymer-modified cementitious composites. Crumb rubber and processed leather waste were incorporated as partial replacements for natural fine aggregate at replacement levels of 0%, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 547–563 Read article
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Power Factor Improvement in BL-Pseudo Boost Converter-based BLDC Motor Drive
Abstract: Power factor correction (PFC) system increases the efficiency of power supply, delivering cost savings on electricity. Exchanging power supplies without PFC attract current short, high greatness beats. The beats can be smoothed out utilizing dynamic or inactive PFC procedures. This improves the power factor. A Bridgeless (BL) Pseudo boost converter is used for power factor correction in Brushless DC Motor (BLDC) drive. This converter working in spasmodic conduction mode (DCM) …
Published in Journal of Control & Instrumentation · Vol. 10, Issue 2, 2019 · pp. 40–49 Read article
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Millimeter Wave Slotted Microstrip Patch Antenna for Next Generation 5G Communication
Abstract: Abstract: In this paper, a printed microstrip patch antenna is analyzed for lower band 5G technology. The proposed printed Microstrip patch antenna has a compressed structure having dimension 20 × 20 × 1.6 mm3 with the conducting ground plane and this antenna is well suited for the use in handheld next generation 5G devices. Modified antenna resonated at lower band of 5G communication technology. In this research work geometry of …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 1, 2019 · pp. 25–30 Read article
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Radon Estimation in Water of Surrey Region of British Columbia, Canada using LR-115 Type II Nuclear Track Detector
Abstract: Radon activity concentrations were measured in the ocean, swamp and well water samples collected from Surrey region of British Columbia in Canada. The purpose of this study was to compare radon activity in all three sources of water. Water was collected in air tight bottles and stored for 2 weeks before investigation. LR-115 Type II nuclear track detectors of 1.5 cm 2 were used for recording radon alpha tracks. Tracks …
Published in Research and Reviews: A Journal of Toxicology · Vol. 11, Issue 1, 2024 · pp. 7–15 Read article
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Optimizing Tourist Mobility with Dijkstra’s Algorithm: A Review on Pollution Reduction through Smart Path Planning
Abstract: Although Tourism helps the economy, but it can also harm the environment, especially in popular tourist destinations. Optimizing routing is one way to reduce these environmental effects. This review paper examines how the well-known and traditional Dijkstra's method for shortest path computation is used to pollution management and support sustainable tourism. The study explores how intelligent traffic routing can minimize traffic congestion in environmentally sensitive areas and lower fuel consumption …
Published in Trends in Transport Engineering and Applications · Vol. 13, Issue 2, 2026 · pp. 20–29 Read article