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918 articles for “top-down”
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Cooling test's impact on photovoltaic solar panel systems
Abstract: Temperature changes have a massive effect on the performance of photovoltaic (PV) solar panels that are currently extensively used for the conversion of solar power into electrical energy. The output of solar systems is limited, especially in hot climates, as heating of the panel causes output voltage and efficiency to drop. The paper explores the effects of cooling on the quality and performance of photovoltaic (PV) solar panels. In this …
Published in International Journal of Electronics Automation · Vol. 4, Issue 2, 2026 Read article
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Enhancement in Heat Transfer Rate of Plate Fin Heat Exchanger using Triangular Winglets
Abstract: AbstractHeat transfer enhancement in heat exchanger leads to higher saving in terms of manufacturing and operational costs. However, parameter pertaining to pressure drops needs to be effectively analyzed so as to make a balance between pressure drop and effectiveness against the operation costs. This paper focuses on the use of triangular winglets in plate fin heat exchangers to enhance the rate of heat transfer. An obstacle is provided in the …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 6–11 Read article
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Experimental Study of Solar Still with Rotating Wick to Increase Productivity
Abstract: In the present work, an attempt is made to enhance the productivity of the conventional basin type single slope solar still using a vertical rotating wick. A rotating wick (Jute cloth) belt is integrated against the still back wall to act as an additional evaporation area. A set of experimental tests are carried out by applying constant heat flux using halogen bulbs and by varying the brackish water height in …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 1, 2021 · pp. 54–61 Read article
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Single Axis Solar Tracking System Using Arduino And 555 Timer IC
Abstract: This research focuses on the topic of development and advancement of single axis solar tracker with the help of Arduino UNO, which is cost efficient, less complex, and capable of achieving maximum efficiency and maximum output. In this research, light dependent resistors (LDR) are used to detect solar radiation and capture optimum light intensity. Servo motor is used to rotate the solar panel and to sense the maximum light intensity …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 2, 2021 · pp. 8–15 Read article
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Design Simulation and Analysis of Improved Anti Reflecting Coating for Reflection Loss Minimization of Solar Cell
Abstract: Antireflection coatings are made up of a thin layer of dielectric material with a specific thickness and refractive index that causes the wave reflected from the top surface of the antireflection coating to be out of phase with the wave reflected from the semiconductor surface due to interference effects in the coating. Anti-reflective coating design and modelling were utilised to improve the efficiency of solar cells. When integrated into arrays …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 3, 2021 · pp. 32–41 Read article
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Thermal Stress Analysis of Neck Tube into Vertical Cryogenic Insulated Cylinders using ANSYS Software: A Review
Abstract: Materials have a significant impact on the progress of one discipline, cryogenics. Technologies based on cryogenics are used in many different fields, including metallurgy, chemistry, the electricity sector, medicine, rocket propulsion, space simulation, food processing via refrigeration, and many more. The current status of research and anticipated advancements in the field of cryogenic materials throughout the coming century cover a wide range of topics. We quickly review the background of …
Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 1, 2023 · pp. 26–30 Read article
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INVESTIGATION OF MICROSTRIP BANDPASS FILTER FOR S-BAND APPLICATION
Abstract: Abstract— Microstrip bandpass filter is presented in this paper for S-band application. The filter employs the microstrip line with port matching topology and plane ground to operate in S-band frequency range. CST Microwave Studio simulator is used for simulation and Rohde & Schwarz Vector Network Analyzer is used for measurement. Filter has size of 120 mm x20 mm and fabricated using low cost FR-4 substrate of 1.6 mm thickness and …
Published in Current Trends in Signal Processing · Vol. 8, Issue 1, 2018 · pp. 28–32 Read article
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Design of a Capacitive Loaded and Composite Split Ring Resonator Based Monopole Patch Antenna
Abstract: AbstractHere we have designed a monopole antenna at 2.8 GHz frequency and then we have loaded a metamaterial unit cell at the top of the monopole antenna and the same unit cell is also used as composite split ring resonator (CSRR) and incorporates with the same antenna. In both of the cases we have calculate the resonant frequency and gain of the antenna.Keywords: Metamaterials, microwave filters, splitring resonators (SRRs)\Cite this …
Published in Current Trends in Signal Processing · Vol. 8, Issue 1, 2018 · pp. 23–27 Read article
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Investigation on Various Routing Protocols in Ad Hoc Networks
Abstract: AbstractThis paper diligently investigates and analysis recent works on ad hoc network protocols and gives an in-depth comparison of all protocols, thus suggesting which one to use for higher performance. In recent years more emphasis is being laid on wireless ad hoc networks that is MANET (Mobile Ad hoc Network) or WANET (Wireless ad hoc Network). This evolution has undergone a remarkable and unstoppable change of trend. As the topology …
Published in Current Trends in Signal Processing · Vol. 8, Issue 3, 2018 · pp. 7–12 Read article
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A Review on Algorithms of Cluster Head in Mobile Ad Hoc Networks
Abstract: AbstractMobile ad hoc networks consists of mobile nodes that communicates with each different with none mounted topology. Cluster head choice, energy consumption and security may be a great challenge for MANET recently. Optimizing cluster head choice minimizes the energy consumption during a specific network and in addition reduces the information transmission overheads. There are several algorithms for cluster head choice that are supported many parameters. For higher utilization of energy, …
Published in Current Trends in Signal Processing · Vol. 8, Issue 3, 2018 · pp. 1–6 Read article
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Comparative Study of Structure-from-Motion Algorithms 3D Shape Reconstruction
Abstract: 3D shape reconstruction from multiview photographs and video sequences (2D images) is an active area of research. Existing face recognition systems are based on 2D facial images and exhibit well-known deficiencies. Accordingly, the face recognition research is gradually shifting from classical 2D to sophisticated 3D or hybrid 2D/3D. Currently the 3D reconstruction algorithms may be grouped in to four categories. These are shape-from-X, 3D morphable model (3DMM), structure from motion …
Published in Current Trends in Signal Processing · Vol. 6, Issue 1, 2016 · pp. 1–10 Read article
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A Correct and Simple Method of Writing PFC Codes
Abstract: Data compression (DC) is thriftiness in conveying information and is akin to précise that is, the goal is to convey the same or essential information using fewer resources. In electronic engineering, it occupies an important place because it reduces the size/amount of (i) memory required to store information just like précis reduces the size of an article; (ii) bandwidth required to transmit the information—just as less number of passengers means …
Published in Current Trends in Signal Processing · Vol. 4, Issue 3, 2014 · pp. 8–13 Read article
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Numerals Recognition for Urdu Script
Abstract: Optical Character Recognition is a difficult task due to the complexities of the script and varying location of the character in the image. Characters of Urdu script-based languages are even more difficult to recognize but they have not received much attention in spite of the fact that Urdu ranks sixth in the top 10 most-spoken primary languages (181 million people). The problem of numeral recognition in Urdu is due to …
Published in Current Trends in Signal Processing · Vol. 1, Issue 1-3, 2025 · pp. 11–16 Read article
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32-bit Single Cycle MIPS RISC Processor
Abstract: In this report, I have written a Verilog HDL code for the MIPS 32-bit single-cycle RISC Processor and simulate the same. I have derived the result in four points first in terms of resource utilization, an RTL design view, TTL design view, and perform simulation on emulator using machine code. The topics I have cover the report are how to define instruction set for RISC architecture? Designing of various digital …
Published in Current Trends in Signal Processing · Vol. 12, Issue 1, 2022 · pp. 29–37 Read article
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Experimental Investigation On Reactive Distillation Process For Synthesis of iso-amyl acetate
Abstract: Abstract: Reactive Distillation (RD) is a combination of reaction and distillation in a single vessel gives bonuses over conventional sequential approach of reaction followed by distillation or other separation techniques. These processes are better candidates to use it to chemical process industry. These processes proved to offer better selectivity, improved conversion, and superior heat control, operational utilization of reaction heat, choice for problematic separations, huge capital and energy price reductions, …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 1, 2019 · pp. 17–31 Read article
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Synthesis of Biodiesel with Methanol Recovery in Reactive Distillation
Abstract: In the present study, biodiesel was synthesized from waste vegetable oil, methanol and catalyst. The present work investigates the use of reactive distillation for continuous production and separation of biodiesel with recovery of excess methanol as top product of acceptable purity. In order to determine the best conditions for biodiesel production by reactive distillation, process parameters such as molar ratio of oil to alcohol, reaction temperature, catalyst concentration (0.5–1.5 wt …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 1, 2016 · pp. 26–31 Read article
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Design and Control of Acrolein Production Process
Abstract: In this study, the design and control of acrolein production plant has been investigated. The proposed design consists of a reactor and two distillation columns. Propylene reacts with oxygen and produces acrolein, acrylic acid, carbon dioxide and water. Plant wide operability and control of the entire acrolein production plant with decentralized controllers are explained. Tray temperature control loop and composition control loop are designed to infer final product purity. From …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 2, 2014 · pp. 27–34 Read article
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Studies on CO2 Dissolution in Sodium Silicate for the Precipitation of Silica
Abstract: Rice husk is an agricultural residue abundantly available. Rice husk is a fuel having high ash content; major constituent being silica (90%). Extracting silica from Rice husk ash (RHA) not only adds value but also solves disposal problem of large amount of ash. Conventionally silica is extracted from quartz (silica rock) but this route is expensive and required more energy and RHA is the ultimate choice. Alternately Extraction of silica …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 1, 2014 · pp. 70–75 Read article
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Manufacturing of EV Kit for Vehicles
Abstract: No one electric vehicle technology, including battery type, propulsion system, and vehicle design, currently serves as the industry standard. The challenges that competing technical systems must overcome in terms of manufacturing and infrastructural requirements are looked at in this article along with reviews of the top governmental and commercial electric car research initiatives worldwide. An IC engine-powered vehicle is simply converted into an electric-powered vehicle to create the electric scooter. …
Published in Journal of Automobile Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 59–64 Read article
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Comprehensive Analysis of Electric Scooters: Investigating Challenges, Failures And Component Optimization for Enhanced Urban Mobility.
Abstract: Renewable energy, a global topic of discussion, has made significant strides in preserving our ecosystem. Environmental pollution stands as a critical issue, necessitating proactive measures for mitigation. The emergence of electric scooters represents a positive step towards environmental conservation; however, their acceptance as urban mobility vehicles is hindered by safety apprehensions. This research delves into e-scooter design, aiming to enhance productivity and address challenges. By identifying accidents and operational failures, …
Published in Journal of Automobile Engineering and Applications · Vol. 10, Issue 1, 2023 · pp. 45–60 Read article