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221 articles for “conversational design”
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Design Strategies of Polymer Composite Components for Sustainable Renewable Energy Microgrids
Abstract: Increasing power demand and variable performance requirements in renewable-energy systems motivate integrating advanced polymeric and composite materials into microgrid components to improve reliability and performance. This paper presents a design and control framework for a standalone microgrid that couples power-electronic and energy-conversion subsystems with polymer-composite–based components to enhance durability, thermal management, and electromagnetic shielding. The microgrid uses a doubly fed induction generator (DFIG) for wind generation to enable independent active …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 63–71 Read article
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Low-Grade Heat Recovery: Emerging Materials and Systems for Efficient Utilization
Abstract: Low-grade heat (LGH), generally characterized by temperatures below 200°C, constitutes a significant portion of wasted thermal energy in industrial, commercial, and even residential processes. Despite its vast availability, the efficient recovery and utilization of LGH remains underdeveloped due to its inherently low exergy content and the limitations of traditional heat recovery technologies. The creation of cutting-edge materials and creative system-level approaches for LGH recovery has accelerated significantly as companies continue …
Published in International Journal of Energy and Thermal Applications · Vol. 3, Issue 1, 2025 · pp. 24–29 Read article
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Recent Advances in Crystal Defect Engineering of Semiconductor Photocatalysts for Sustainable Environmental and Energy Applications
Abstract: Semiconductor photocatalysis has emerged as one of the most promising green technologies for addressing environmental pollution and global energy challenges through solar energy utilization. Nevertheless, the practical application of conventional semiconductor photocatalysts is often limited by their narrow visible-light absorption, rapid recombination of photogenerated electron–hole pairs, insufficient active sites, and poor charge-transfer efficiency. Defect engineering has recently attracted significant attention as an effective strategy to overcome these limitations by deliberately …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 2, 2026 Read article
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Triboelectric Charge Density Enhancement in Zinc Oxide Decorated Polymer Nanogenerators for Energy Harvesting Systems
Abstract: The growing need for wearable electronics, wireless sensor networks, and IoT devices has pushed research on triboelectric nanogenerator for long-term energy harvesting. However, traditional polymer-based TENGs' low triboelectric charge density restricts their energy conversion efficiency and practical performance. This research presents a zinc oxide (ZnO)-decorated polymer triboelectric nanogenerator designed to enhance surface charge density and improve electrical output. ZnO nanoparticles were synthesized using a hydrothermal method and uniformly deposited onto …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Advancements in Windmill Technology: Comprehensive Research on Conventional and Piezoelectric Windmills
Abstract: This research delves into the structural components and mechanisms of conventional wind turbines, emphasizing blade material considerations for optimal performance. It introduces a paradigm shift by exploring the use of epoxy resin and piezoelectric materials, specifically zinc oxide, in wind turbine blades. The study presents mathematical models and conducts a comparative analysis between conventional and piezoelectric turbines, evaluating efficiency, cost-effectiveness, environmental impact, and energy output differences. While awaiting experimental data, …
Published in Journal of Aerospace Engineering & Technology · Vol. 14, Issue 3, 2024 · pp. 31–42 Read article
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Design of Standalone Photovoltaic System to Meet Energy Requirements of Village in India
Abstract: AbstractThe demand of green and clean energy is increasing rapidly with gradual depletion of fossil fuels. With abundant solar irradiation throughout the country, solar Photovoltaic (PV) conversion has gained momentum in India, which is actively supported by government policies and incentives in the sector. In order to accommodate daily and seasonal variation of solar radiations, solar system must have proper energy storage device in the form of battery bank. In …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 13–16 Read article
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Continuous-Time Modelling of the Two-Input Fourth Order DC_DC Converter
Abstract: Two-input fourth-order integrated (TIFOI) converter is designed to process the power from two different sources Vg1 and Vg2. This converter facilitates regulation of dc-bus voltage and LVS current. In the power conversion process it performs bucking operation for first dc source Vg1, buck-boost operation for the second source Vg2. Power stage dynamics of the TIFOI converters is modeled using the state-space analysis. The system modelling plays an important role in …
Published in Journal of Control & Instrumentation · pp. 1–11 Read article
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Continuous-Time Modelling of the Two-Input Fourth Order DC_DC Converter
Abstract: Two-input fourth-order integrated (TIFOI) converter is designed to process the power from two different sources Vg1 and Vg2. This converter facilitates regulation of dc-bus voltage and LVS current. In the power conversion process it performs bucking operation for first dc source Vg1, buck-boost operation for the second source Vg2. Power stage dynamics of the TIFOI converters is modeled using the state-space analysis. The system modelling plays an important role in …
Published in Journal of Control & Instrumentation · Vol. 12, Issue 3, 2021 · pp. 1–11 Read article
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Design Optimization of a Micro Wind Turbine
Abstract: Nation’s economic health depends on Industrialization. For the growth of Industrial sector i.e. in turn that of society, adequate uninterrupted electric power is essential. Conventional fuel sources are limited and hence the whole world is searching for proper renewable energy sources. Out of many renewable energy sources (Solar, wind, waves etc.) wind energy is offering substantial contribution today. Although, according to Betz’s limit, only 59% energy conversion (i.e. efficiency) can …
Published in Journal of Control & Instrumentation · Vol. 5, Issue 3, 2014 · pp. 1–7 Read article
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Complementary Metal Oxide Semiconductor Readout Integrated Circuit for Imaging Applications
Abstract: In this paper presents a novel continuous-time simultaneous-readout scheme for active imaging systems based on orthogonal modulation of photo detector signals. The superimposed-continuous-time approach presented here differs from the conventional scheduled-discrete-time scheme in that the photo detector signals are summed in a common bus concurrently and then converted to voltage levels for digitization. We illustrate that our proposed architecture may be profitable. Predominantly, in solicitations, the bandwidth necessities for a …
Published in Journal of Semiconductor Devices and Circuits · Vol. 2, Issue 2, 2015 · pp. 5–8 Read article
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Solar Wireless EV Charging System
Abstract: This project presents a Solar Wireless Electric Vehicle (EV) Charging System that integrates solar energy with inductive wireless power transfer (WPT) to achieve a sustainable and eco-friendly charging approach. The proposed system utilizes a 12V solar panel as the primary renewable energy source, which charges a 3.7V lithium-ion battery through a transistor-based control circuit. This stored solar energy then powers the primary coil, generating an alternating magnetic field that enables …
Published in International Journal of Electronics Automation · Vol. 3, Issue 2, 2025 · pp. 14–20 Read article
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Intello-An Intelligent Chatbot For Replacing FAQs
Abstract: A user often needs to go through each question of the FAQ section of a website simply to find the answer to his solitary question. It would be much simpler if there existed a single interface through which he could simply type in his question and the answer is directly provided. There has been a long list of chatbots developed for the e-commerce and online customer service industry.In this paper, …
Published in Journal of Web Engineering & Technology · Vol. 5, Issue 1, 2018 · pp. 25–34 Read article
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Design and Development of a Campus Placement Experiences Hub
Abstract: Campus placement preparation is an important stage in every student's academic journey, but many students struggle because they do not have access to accurate and well-organized information about company recruitment processes. Most of the available guidance comes from informal conversations with seniors, classmates, or social media groups, where the information is often incomplete, outdated, or difficult to verify. As a result, students may not fully understand the interview process, the …
Published in Journal of Web Engineering & Technology · Vol. 13, Issue 2, 2026 · pp. 8–14 Read article
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Enhancing Compressive Strength and Durability through Optimization of Concrete Mixtures
Abstract: This research investigates how varying cement-aggregate ratio, water-cement ratio, and slump height affect the compressive strength of concrete mixtures. Through an analysis of 36 samples, each representing different combinations of these parameters, significant insights are gained into the optimization of concrete mix designs for construction applications. The study reveals that higher water-cement ratios tend to decrease compressive strength due to increased porosity in cured concrete. Conversely, higher cement-aggregate ratios generally …
Published in Journal of Geotechnical Engineering · Vol. 11, Issue 1, 2024 · pp. 1–12 Read article
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Recent research trends in Bioethanol production – An Indian context
Abstract: Biofuels production is indeed a research hotspot. Prevention is better than cure. A paradigm shift from fossil based to bio-based fuels gives health, wealth and happiness. Among various biofuels, after biodiesel, bioethanol is next to and close to commercialization. The use of bioethanol is countries like Brazil and US is a success story. In India there is significant progress taking place in the transportation sector to use bioethanol as fuel …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 16, Issue 2, 2026 Read article
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Microstrip Patch Antenna for Dual Band Application
Abstract: AbstractThis paper presents a rectenna that is designed and simulated to power the wireless sensor systems at 3.12 GHz. The antenna substrate is designed with glass epoxy. The rectenna circuit has been simulated on the glass epoxy and RF-to-DC conversation is investigated for power level –5 dBm. The presented antenna has the impedance bandwidth of 58.34%, i.e. from 2.61 to 4.76 GHz with a gain of 2.67 dBi.Keywords: Rectenna, RF-to-DC, …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 1, 2018 · pp. 25–28 Read article
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Rectenna for Low Power Wireless Applications
Abstract: This paper presents a rectenna that is designed and simulated to power the wireless sensor systems at 3.12 GHz. The antenna substrate is designed with glass epoxy. The rectenna circuit has been simulated on the glass epoxy and RF-to-DC conversation is investigated for power level -5dBm. The presented antenna has the impedance bandwidth of 58.34%, i.e. from 2.61GHz to 4.76 GHz with a gain of 2.67dBi.Keywords: Rectenna, RF-to-DC, micro strip …
Published in Trends in Electrical Engineering · Vol. 8, Issue 1, 2018 · pp. 19–23 Read article
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Review of Techniques Available to Improve Parameters of Microstrip Patch Antenna
Abstract: Abstract In this paper, authors have proven contrast of diverse techniques available to modify the parameters of microstrip patch antenna (MPA). MPA is usually used in modern conversation devices. Study of literature of beyond few years indicates that the main work on MPA is centered on designing compact sized broadband microstrip antenna (MA). Authors investigated various research papers published to regulate the antenna parameters, and made a contrast chart displaying …
Published in Journal of Multimedia Technology & Recent Advancements · Vol. 4, Issue 3, 2017 · pp. 39–44 Read article
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Performance Optimization of Thin Film Cu(In,Ga)Se2 Solar Cell using BSF Layer
Abstract: This research work offers numerical analysis of CIGS solar cell designing an ultrathin absorber layer. The CIGS structure is outperformed from the theoretical and experimental evaluation considering the physical properties, dimensions and thickness of various layers of solar cell. Concentration of gallium within CIGS (Cu (In, Gа) Sе2) has major influence on the efficiency attributed to CIGS based solar cell and maximum power conversion efficiency of 27.26% is attained by …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 11, Issue 2, 2021 · pp. 19–26 Read article
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Design of Ultrafast Optical Full Subtractor Link and Performance Analysis
Abstract: AbstractThis article illustrates proposed optical full subtractor schematic through SOA-MZI, yield borrow and difference outputs concurrently. The objective has been accomplished by exploiting nonlinear attributes with SOA. Numerical simulations have been executed and craving optical subtractor output waveforms have been verified at 100 Gbps data rate. Optimization criterion for the design’s performance measurement is taken as Q-factor and the extinction ratio factor. The subtractor output difference and borrow outcomes with …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 3, 2017 · pp. 7–20 Read article