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1984 articles for “system” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Flow and Filtration of Polystyrene Microparticles in Micron-Scale Fluid Mechanics towards the Applications related to fluidic Microelectromechanical Systems
Abstract: Maskless lithography, hot embossing lithography and direct bonding technique are useful to fabricate the polymethylmethacrylate (PMMA) microfluidic devices. Also, maskless lithography and indirect bonding technique are useful to fabricate the SU-8 based glass microfluidic devices. In this work, a short review on microfluidic flow and microfluidic filtration of microparticles is provided by author related to the micron-scale fluid mechanics. This review may be useful to perform the blood filtration in …
Published in Journal of Microelectronics and Solid State Devices · Vol. 8, Issue 3, 2021 · pp. 36–41 Read article
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Sizing and Power Estimation Models of an Off-grid Wind Power Supply System in Sokoto, Nigeria
Abstract: AbstractThe exploitation of wind energy for electricity generation could be done by the use of wind turbines. The power output from the wind generator fluctuates due to the variability of wind speed and therefore storage facilities are needed for power supply stability. This research focuses on the wind power potential investigations, sizing of wind power system components and determination of the better wind turbines for residential power supply in Sokoto, …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 1–7 Read article
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Three level Dashpot oil level monitoring system
Abstract: Nuclear reactors use free fall of control and safety rods (CSR) for a fast shutdown of the reactor in case of emergencies to prevent radioactive hazards. During the last 250mm of the total 1085mm of travel of the CSRs, there is a dashpot with oil to facilitate the smooth descent of the control rods. This oil prevents any shock to the system due to the sudden fall. Thus, there is …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 48–55 Read article
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Glass Fiber Layer Effect on Chemico-mechanical Properties of Light Cure Adhesive Systems
Abstract: Introduction: Orthodontic adhesives should have clinically acceptable shear and tensile bond strength to withstand masticatory forces and those generated by treatment mechanics. Mechanical properties of the adhesive, such as flexural modulus of elasticity, tensile strength, and compressive strength, are more heavily influenced by the resin matrix's Degree of cure (DC). Aim: The study compares the effect of the Glass fiber layer on Chemico-mechanical properties using three different light cure adhesive …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 1–9 Read article
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Novelty of Cascaded Inverter Based Two Stage Power Conditioning Systems for Constant Wind Power Applications
Abstract: Wind energy has proved to be the most promising renewable energy source because of its environmental friendly nature. Wind energy can be generated by harnessing the kinetic energy of atmospheric air. The present concern towards wind turbines is to increase the size of turbine in order to harvest more energy and also to reduce cost of per megawatt capacity. This paper proposes a 2-stage power conversion technique. The first stage …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 1–11 Read article
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Performance Evaluation of Active Power Filter for Aircraft System
Abstract: Sinusoidal current control approach for extracting reference currents for shunt lively energy filters were modified using genetic algorithm and its performances had been compared. The acute evaluation of comparison of the repayment functionality based on THD and speedwell be finished, and pointers may be given for the selection of method for use. The simulated effects the usage of MATLAB version are shown, and they will undoubtedly prove the significance of …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 1, 2017 · pp. 1–8 Read article
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A New Approach for Modeling the Dynamics of Output Variables of a Spatially Distributed System
Abstract: This paper addresses the development of an average-value based model for the processing system having some peculiar physical constraints which prevent their process variables to have a steady and stable value. As a result, the maintenance of steady balance of the system will become tedious. The continuous observation of that process variable, fixation of its average value on real-time basis, and mathematical model development of above-average value as base factor …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 2, 2012 · pp. 20–33 Read article
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Multi Objective GAPSO Hybrid Algorithm for Optimal Location of Unified Power Flow Controller in Power System
Abstract: In the new era, sometimes, power systems work with heavily loaded lines resulting in higher power loss and higher voltage deviation which makes the system unstable. It is owing to continuous growing demand of electrical power. This paper elaborates a multi objective GAPSO hybrid algorithm to solve a multi objective optimization problem to find optimal location and size of unified power flow controller. The objective functions are used to minimize …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 34–44 Read article
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Transient Analysis of a Grid-Connected Hybrid Wind-PV System
Abstract: A new reliable hybrid distributed generation (DG) system based on photovoltaic (PV) and wind driven permanent magnet synchronous generator (PMSG) as sources, with only a boost converter followed by an inverter stage is being developed. The proposed hybrid generator has a PV array being directly connected to the dc link instead of a dc-dc converter. The dc-dc converter varies the dc-link voltage and is placed in between the rectifier fed …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 55–63 Read article
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Application of Accelerated PSO and ANN for Optimal Scheduling of Hydrothermal System
Abstract: A short range problem of hydrothermal scheduling of hydrothermal system with cascaded is analyzed in this paper. The net head, water discharge rate and water transport delay between connected reservoirs is considered in the problem. The developed algorithm is demonstrated on a test system consisting one thermal plant and four cascaded hydro plants. The results obtained by the APSO technique are compared to PSO and conventional technique. It is found …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 3, 2016 · pp. 42–52 Read article
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Simulation and Analysis of Sub Synchronous Resonance in a Series Compensated Transmission System
Abstract: Series compensation of a transmission line is necessary as it increases the power transfer capability of a transmission line. Employing series compensation also leads to phenomenon of sub synchronous resonance (ssr) wherein the electrical and mechanical natural frequencies match and exchange energy leading to excitation of natural torsional modes of the turbine generator unit. This leads to mechanical fatigue of the shaft on which turbine and generator are connected. This …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 3, 2015 · pp. 87–96 Read article
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Design and Analysis of a Solar-Wind Hybrid System
Abstract: Renewable energy sources like wind and solar energies can be combined to increase the totalpower generation and thereby increase the efficiency of the system. The combination alsoprovides a means to overcome the intermittent nature of the solar and wind renewable energysources, since one source can be used for power generation when the other is not available.AC-DC converters are used to convert the alternating voltage of the wind generator to aconstant …
Published in Journal of Power Electronics and Power Systems · Vol. 10, Issue 1, 2020 · pp. 1–8 Read article
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Modeling of Maximum Power Point Tracking Controllers for Wind Generation System using Hill Climb Searching Technique
Abstract: In this paper, based on a low-cost, small-scale application, presents a Maximum Power Point Tracking (MPPT) controller for wind generation systems (WGS). The Hill Climb Search approach served as the foundation for the development of the MPPT algorithm. To account for the inertia of wind turbines, an enhanced hill-climb searching approach has been created as a fundamental component of the max-power extraction algorithm. Under varying wind conditions, the generator can …
Published in Journal of Power Electronics and Power Systems · Vol. 13, Issue 3, 2023 · pp. 39–47 Read article
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Experimental Analysis of the Effect of Fine Milled Husk of Rice as a Novel Filtration Control Agent for Water Based Drilling Fluid System
Abstract: Drilling operation is a complex process that requires integration of various engineering systems. As the drilling continues, the formation encountered offers challenges to wellbore integrity as pressure increases with depth. The influx of formation fluid is contained by the overbalance provided by weighted drilling fluid column. Another critical function of the mud is to restrict the filtration fluid lost to the formation by forming a suitable mud-cake around the wellbore. …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 4–8 Read article
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Development of Intermittent Gas Lift Optimum Time Module Using Automatic Pneumatic System
Abstract: Artificial lift technique is used to bring hydrocarbons to the surface when they cannot come to the surface on their own. Gas lift is an artificial lift technique which is classified into continuous and intermittent gas lifts. Continuous gas lift is used when the hydrocarbon fills into the wellbore continuously but is not able to come to the surface while intermittent gas lift is used when the fluid flow into …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 40–50 Read article
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A review of Autonomous Maintenance System using Weighted product method (WPM) method
Abstract: Autonomous maintenance is a method in manufacturing, which Dedicated to machine operators Maintenancetechnicians Believing, basic maintenance Assigns responsibility for tasks. Objective of this thesis Finding the best locationAutonomous Maintenance System Weighted product method (WPM). This paper is the a weighted product for solving the routing decision problem Model (WPM) is used. Every Dynamically assign weights to criteria This proposed scheme Considers the relevant valuation method for Database Management, Data Storage, …
Published in Journal of Production Research & Management · Vol. 12, Issue 3, 2022 · pp. 26–34 Read article
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Digital Front-End Architecture of ECG Acquisition System with 0.5V Supply
Abstract: AbstractDue to the popularity of portable electronic products, low power systems have attracted more attention in recent years. Dynamic power consumption remains to be the biggest contributor to the total power consumption of a hardware design. A new power efficient electrocardiogram acquisition system that uses a fully digital architecture to reduce the power consumption and chip area has been proposed in this paper. The design of analog-to-digital converters (ADCs) is …
Published in Journal of Semiconductor Devices and Circuits · Vol. 3, Issue 2, 2016 · pp. 11–20 Read article
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Octagrid an Alternative Lateral Load Resisting System
Abstract: The cost of the land in the rapidly developing urban cities have skyrocketed in the last few decades. Acquiring a piece of land has become very difficult for the builders and developers for different amenities and hence the concept of tall buildings has spread its roots in the urban infrastructure scenario. Tall buildings facilitate the optimum use of land and many amenities such as offices, residential apartments, shopping malls and …
Published in Journal of Structural Engineering and Management · Vol. 7, Issue 3, 2020 · pp. 29–33 Read article
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Review on Approach to systematic Biomimetic Part Design for Additive Manufacturing
Abstract: For a serial production of complex mechanical components an industry relevant technology known as Additive manufacturing (AM) is a broad concept. For a product optimization with these complex components principle of biomimetic ensures innovative product. The additive manufacturing has potential on a systematic and economic design base. To overcome on an unsystematic design, a cost intensive and long term trial and error part design optimization, an additive manufacturing provides a …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 1, 2018 · pp. 37–43 Read article
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Analysis of Gain Bandwidth Product by Achieving Gain Flatness in EDFA for Dense Wavelength Division Multiplexed System
Abstract: In this paper, we have analyzed gain bandwidth product through gain flatness in EDFA for dense wave length division multiplexed system. The system consist of four channel DWDM with varying wavelengths of optical fiber from 1530 to 1560 nm and by changing the noise for each amplifier to achieve the quality factor and noise figure of both the amplifiers. In this article, we used the frequency spacing of 2 GHz …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 2, 2016 · pp. 1–5 Read article