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768 articles for “EL devices”
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Detection of Radioactive Material Out of Regulatory Control: A Radiation Dose Survey of a University Environs in Rivers State, Nigeria
Abstract: This research investigates radiation levels at refuse dump sites and laboratories within the University of Port Harcourt, Nigeria environs and assesses the associated risks to human health and the environment. The study utilizes two radiation detection instruments namely the Personal Radiation Detector and the Radioisotope Identifier Device. The PRD offers real-time detection and spectroscopic analysis of gamma and neutron radiation, while the RID combines gamma and neutron radiation detection with …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 1–11 Read article
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Comparative Evaluation of Tin Perovskite based Solar Cell
Abstract: AbstractPerovskite material utilized in manufacturing solar cells as active layer has altogether improved their effectiveness for power change. They possess conversion efficiency impressively more than the traditional technologies, for example, silicon based cells. They likewise have PCE more than the DSSC. They are accounted for to have conversion efficiency of about 20%. There has been a great increment in the estimation of PCE of these cells utilizing Perovskite as active …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 3, 2019 · pp. 15–18 Read article
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Design of Plasmonic Based Splitters for WDM Applications
Abstract: AbstractPlasmonics has special property of metallic nanostructures to allow manipulation and routing of light at nanoscale. In this paper, 1×2 and 1×4 splitters are designed using metal-insulator-metal (MIM) plasmonic waveguides. These proposed splitter designs could be used to conquer various filtering devices for high assimilation in surface plasmon polaritons based metallic surfaces. The results are verified using finite difference time domain (FDTD).Keywords: Plasmonics waveguides, surface plasmons, finite difference time domain …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 1, 2016 · pp. 14–19 Read article
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Low-Power Reconfigurable Digital Filter Design Using FPGA for IoT Edge Devices
Abstract: The rapid evolution of the Internet of Things (IoT) has led to an exponential increase in the deployment of edge devices that continuously process real-time sensor data under strict power, latency, and computational constraints. Digital filtering remains a critical operation in these devices, supporting tasks such as noise removal, data conditioning, and feature extraction for intelligent decision-making. However, conventional filter implementations on microcontrollers or fixed digital signal processors often struggle …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 3, Issue 2, 2025 · pp. 23–34 Read article
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A study on CMOS Operational Amplifier in Sensor Development
Abstract: CMOS operational amplifiers (op-amps) have emerged as pivotal components in modern sensor development, enabling the amplification and conditioning of weak signals with high precision and efficiency. Their inherent advantages low power consumption, compact size, and seamless integration with digital circuits make them ideal for advancing miniaturized, battery-powered sensor systems in fields ranging from biomedical devices to IoT networks. By delivering precision, power efficiency, and integration, CMOS op-amps are not just …
Published in Journal of VLSI Design Tools and Technology · Vol. 16, Issue 1, 2026 · pp. 01–07 Read article
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Analysis of Power Quality Disturbances in Distribution Systems with Renewable Energy Integration
Abstract: The growing integration of renewable energy sources within the electrical distribution systems has greatly altered the working dynamics of the contemporary power grids. The introduction of intermittent and nonlinear sources (solar photovoltaic and wind energy systems) leads to a wide range of power quality disturbances, however. The current paper includes the in-depth examination of the problem of power quality in the distribution systems with the integration of renewable energy. The …
Published in Trends in Electrical Engineering · Vol. 16, Issue 1, 2025 Read article
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Effect of Viscoelastic Dampers on Progressive Collapse Resistance of RC Building
Abstract: Natural as well as man-made hazards may cause the failure of the primary load bearing members of buildings. The spread of an initial local failure from element to element, eventually result into the collapse of an entire structure or a large part of it, which is known as Progressive Collapse. Progressive collapse initiates when one or more primary load bearing elements get fails causing failure of the entire structure. It …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 1, 2017 · pp. 27–34 Read article
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PLC Dependent Smart and Automatic Car Washing System and Water Recycling
Abstract: The world's finest communication, transportation, and commerce channels are all connected by technology, which has resulted in a sharp rise in the number of cars. Cleaning these autos or cars, etc., requires a lot of time. The lowering of maintenance costs is directly correlated with effective time management. Man uses the automated method to complete jobs more quickly. Autonomous vehicle washing systems are widely prevalent in industrialized nations. It is …
Published in Journal of Power Electronics and Power Systems · Vol. 14, Issue 2, 2024 · pp. 28–35 Read article
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Air Pollution Indicating System using IOT
Abstract: AbstractAir pollution is one of the major environment issues. It is the process of releasing any toxic particles into the air that lowers its quality. This paper enabled on IOT along with cloud to make services real time and faster. We made our own DIY Arduino, because buying an arduino is little bit expensive. The Air Quality Index for the observed pollutants is determined by Thing speak. It will display …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 2, 2020 · pp. 9–12 Read article
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Conductive Polymer Nanocomposites for Wearable Cardiac Monitoring Devices
Abstract: Wearable cardiac monitoring devices are increasingly important tools for non-invasive, continuous assessment of cardiac health. Their growth is driven by increases in the incidence of arrhythmias and by a great demand for remote monitoring. This is changing with the use of conductive polymer nanocomposites (CPNCs). They combine physical properties of mechanical flexibility, high electrical conductivity, and good biocompatibility resulting in high precision, and comfortable sensing. CPNCs combine conductive polymers with …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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AI Powered Fault Detection in DC Motor using STM32
Abstract: This work presents the design and implementation of an embedded artificial intelligence system for real-time fault detection in a direct current (DC) motor using the STM32 Nucleo- F411RE microcontroller. The objective of the study is to develop a low-cost and efficient predictive maintenance solution capable of identifying abnormal motor behavior at an early stage. Vibration and temperature signals are acquired using an MPU6050 sensor and processed directly on the microcontroller …
Published in Journal of Control & Instrumentation · Vol. 17, Issue 1, 2026 · pp. 39–49 Read article
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IOT Based Bidirectional Energy Metering with Auto-Bill Generation in Solar PV Systems
Abstract: AbstractFor a soon to be developed India, the renewable energy resources will be the centre around which the wheel of growth will revolve. In our country the energy shortage problem and the alarming rate at which pollution is rising have given way to the domestic solar photovoltaic ON grid system. This leads to the problem of bidirectional metering of electrical energy. In response to this problem we are developing this …
Published in Journal of Microelectronics and Solid State Devices · Vol. 7, Issue 1, 2020 · pp. 11–17 Read article
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Photochemical Studies of Photosensitive Compound in DSS Cell
Abstract: Solar energy is our earth’s primary source of renewable energy. It is one of the most resourceful sources of energy for the future. A technique for converting solar energy into electrical energy via formation of energy rich species that exhibit the photo-solar effect is known as DSS cell. Therefore, the present study of DSS cell of Carbol Fuchsin (PC) with efficiency enhancer chemicals such as TEA reductant in alkaline media …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 3, 2017 · pp. 21–29 Read article
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RF Energy Harvesting Techniques for Wireless Sensor Networks
Abstract: In contemporary applications like environmental monitoring, healthcare systems, industrial automation, agriculture, military surveillance, and smart cities, Wireless Sensor Networks (WSNs) are crucial. However, the limited battery life of sensor nodes remains a major challenge because many sensor devices are deployed in remote or difficult-to-access locations. Frequent battery replacement or recharging increases maintenance cost, reduces network reliability, and limits long-term operation. In contemporary applications like environmental monitoring, healthcare systems, industrial automation, …
Published in Recent Trends in Sensor Research & Technology · Vol. 13, Issue 2, 2026 Read article
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Innovative Synthesis Techniques and Comprehensive Mechanical Characterization of Biopolymer-Based Composites for Advanced Applications in Biochemistry and Materials Sciences
Abstract: Biopolymer-based composites have gotten a lot of attention lately because they could be used in biology and materials science in interesting ways. The main goal of this study is to come up with new ways to make composites and then fully characterize their material properties so that they can be used in more advanced ways. During the production step, a new method is used that combines green chemistry ideas with …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 119–136 Read article
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Graphene-Based Electronic Skin for Wearable Health Monitoring and Human–Machine Interaction, Materials, Structures, and AI Integration
Abstract: Graphene-based electronic skin (e-skin) has emerged as a transformative technology for next-generation wearable health monitoring and advanced human–machine interaction (HMI). Owing to its outstanding electrical conductivity, mechanical flexibility, atomic-scale thickness, and biocompatibility, graphene enables the fabrication of ultrathin, conformal, and multifunctional sensors capable of mimicking the sensory functions of natural human skin. Over the past decade, research in this domain has progressed rapidly across four interconnected fronts: material synthesis and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 175–180 Read article
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Conquering the IoT Frontier: Challenges Faced in India
Abstract: The internet of things (IoT) represents a transformative force reshaping the landscape of connectivity and communication, ushering in an era marked by seamless machine-to-machine interactions and the fluid exchange of data across diverse devices and systems. This paper undertakes an extensive exploration of the prevailing state of IoT advancement within India, with a particular emphasis on delving into the multifaceted realms of security concerns, inherent challenges, and burgeoning opportunities. By …
Published in International Journal of Information Security Engineering · Vol. 2, Issue 1, 2024 · pp. 16–21 Read article
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Developing low power consumption Solar Atmospheric water generator for dealing with water crisis
Abstract: Nowadays in India as well as in some places in the world there is a shortage of water. In the world, 46% of the population, which is nearly 2 billion people are unable to have a clean water source for a drink. This became a threat. On Earth, water is present in different forms. One of them is water vapor. The relative humidity on earth varies by season and place. …
Published in Journal of Nuclear Engineering & Technology · Vol. 14, Issue 3, 2024 · pp. 29–36 Read article
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Smart Home Using Raspberry pi
Abstract: With the increase in the utilization of energy and population, there is a critical need to preserve energy in every way possible. Home automation is the use and control of home appliances remotely or automatically. A distantly accessible environment is a location in which each appliance can be remotely accessed and controlled using software as an interface. The aim of this paper is to build up a system that will …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 2, 2016 · pp. 11–15 Read article
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Interface Engineering of Graphene Multi-Junction InGaP/GaAs/InGaAs/Ge Solar PVC
Abstract: AbstractThe main impediment faced by solar Photo-Voltaic Cell (PVC) is the excitation of charge carriers by high and low energy photons to make them reach the conduction band as this superintends the output device current. To enhance the device current, intermediate engineering of solar PVC is the most prominent strategy. An Inter-Mediate Layer (IML) serves as a spectrally selective layer between the muti-junctions for tandem solar cell. This research work …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 1, 2018 · pp. 1–7 Read article