Power considerations
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Two-stage single-phase rectifiers, which comprises a front-end ac-dc converter and a downstream DC-DC stage, are widely used in electric vehicle onboard charger applications. In this context, the implementation of bidirectional power transfer capabilities has gained considerable attention. Then, Totempole power factor correction and Dual Active Bridge converters emerge as commendable choices for enhancing the efficiency of this configuration.
13p vimichaelfaraday 28-12-2023 4 3 Download
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Continued part 1, part 2 of ebook "Schaum's outline of theory and problems of electronic devices and circuits" provides readers with contents including: Chapter 5 - Transistor bias considerations; Chapter 6 - Small-signal midfrequency BJT amplifiers; Chapter 7 - Small-signal midfrequency FET and triode amplifiers; Chapter 8 - Frequency effects in amplifiers; Chapter 9 - Operational amplifiers; Chapter 10 - Switched mode power supplies;...
175p dangsovu 20-10-2023 9 4 Download
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Part 1 of ebook "Digital video concepts, methods, and metrics: Quality, compression, performance, and power trade-off analysis" provides readers with contents including: chapter 1 - Introduction; chapter 2 - Digital video compression techniques; chapter 3 - Video coding standards; chapter 4 - Video quality metrics;...
162p tieulangtran 28-09-2023 7 4 Download
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Continued part 1, part 2 of ebook "Digital video concepts, methods, and metrics: Quality, compression, performance, and power trade-off analysis" provides readers with contents including: chapter 5 - Video coding performance; chapter 6 - Power consumption by video applications; chapter 7 - Video application power consumption on low-power platforms; chapter 8 - Performance, rower, and quality tradeoff analysis; chapter 9 - Conclusion;...
197p tieulangtran 28-09-2023 4 3 Download
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Part 1 of ebook "Solar power in building design: The engineer's complete design resource" provides readers with contents including: solar power system physics; solar power technologies; solar power system design considerations; introduction to solar power system design; solar power generation project implementation; energy conservation; LEED - leadership in energy and environmental design;...
242p tieulangtran 28-09-2023 5 2 Download
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In research designs that rely on observational ratings provided by two raters, assessing inter-rater reliability (IRR) is a frequently required task. However, some studies fall short in properly utilizing statistical procedures, omitting essential information necessary for interpreting their findings, or inadequately addressing the impact of IRR on subsequent analyses’ statistical power for hypothesis testing.
5p vioracle 29-09-2023 6 2 Download
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In this study, we describe the operation of piezoelectric energy converters and electromechanical modeling of piezoelectric energy harvesting (PEH) devices based on microelectromechanical systems (MEMS) for low-power sensors. Consideration is given to a piezoelectric energy harvester based on standard MEMS. The parameters are determined and optimized using a simple MEMS cantilever model.
8p viwhitewolf 11-07-2023 5 3 Download
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Ebook Powered Flight - The Engineering of Aerospace Propulsion: Part 1 presents the following content: Introduction to Aerospace Propulsion; Introduction to Atmospheric Flight; The Propeller; Internal Combustion Engines; Pulsejet Engines;...Please refer to the documentation for more details.
311p chankora 16-06-2023 0 0 Download
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In today's high-performance system designs, power consideration is becoming increasingly important ,leading to the development of the power consumption in MPSoC at an early step of the design. The aim of our work is to define a methodology to explore power estimation model for Fall Detection System.
4p vispyker 16-11-2022 7 1 Download
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Development of clean renewable energies is necessary due to the global warming. Among them, the number of wind turbines is on the increase because the development of wind power has been noticed.
6p vilexus 05-10-2022 14 4 Download
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Chapter 6 - Source, message, and channel factors. After completing this unit, you should be able to: To study the major variables in the communication system and how they influence consumers' processing of promotional messages, To examine the considerations involved in selecting a source or communicator of a promotional message, To examine different types of message structures and appeals that can be used to develop a promotional message,...
18p runordie9 27-09-2022 12 6 Download
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The development of a small signal model that accurately reflects dynamic processes plays an essential role in the stability analysis and control of power systems. The main components in a microgrid power system are synchronous generators, the electrical network, electrical loads, and inverters. A method to derive the microgrid state-space model is proposed in the article.
7p vipatriciawoertz 31-05-2022 14 3 Download
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The modernization of the world has considerably reduced the prime sources of energy such as coal, diesel and gas. Thus, alternative energy sources based on renewable energy have been the main concentration nowadays to address the world’s energy demand as well as restrict global warming. Solar energy is the main source used to generate electricity through photovoltaic (PV) system. However, the output of PV power is normally intermittent.
4p vistephenhawking 26-04-2022 8 2 Download
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Lecture Methods of Electric power systems analysis - Lesson 1: Power systems overview provide students with knowledge about electric utility: can range from quite small, such as an island, to one covering half the continent; microgrids can power smaller areas (like a campus) and can be optionally connected to the main grid; airplanes and Spaceships: reduction in weight is primary consideration; frequency is 400 Hz; ships and submarines;...
27p hanthienngao 15-04-2022 22 2 Download
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Lecture Methods of Electric power systems analysis - Lesson 6: Power operations, power flow provide students with knowledge about three bus powerworld simulator case; basic power control; power flow in transmission line is limited by heating considerations; overloaded transmission line; automatic generation control;...
54p hanthienngao 15-04-2022 14 1 Download
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Lecture Power system stability - Lesson 21: Measurement-Based Modal Analysis provide students with knowledge about matrix pencil method with many signals; least squares matrix pseudoinverse example; computational considerations; modal analysis in powerworld; modal analysis: three generator example;...
30p hanthienngao 15-04-2022 11 1 Download
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Lecture Power system stability - Lesson 22: North American East-West Interconnection Study provide students with knowledge about details on combining the models; the combined grid overview; lamar 345/230 kV transformer; dynamic model setup; modeling considerations; WECC frequency response comparison: with and without the AC interconnection;...
45p hanthienngao 15-04-2022 17 1 Download
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Lecture Drilling engineering: Positive displacement motors. By the end of this lecture you should be able to name the 4 major components of a PDM tool; explain the components of a PDM power section; list the components of a PDM drive line system; name the 2 types of PDM bearing sections and state when each should be used; list the operational considerations for using PDM tools;...
15p hanthienngao 15-04-2022 11 2 Download
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The present study addresses the removal of cadmium ions (Cd(II)) from aqueous solutions at a pH of 7.5 using zeolite-A activated by exposure to oxygen plasma. The activation process was performed over a wide range of plasma powers (10, 20, 30, and 40 W) and exposure times (30 to 360 s). Oxygen plasma cannot chemically modify zeolite to a considerable extent, but it can clean the surface, open blocked pores, and induce the formation of additional OH groups via exposure to humidity in ambient air. Therefore, Cd+2 ion removal is increased by approximately 10% with the plasma treatments.
13p tudichquannguyet 29-11-2021 8 1 Download
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Genotypes not directly measured in genetic studies are often imputed to improve statistical power and to increase mapping resolution. The accuracy of standard imputation techniques strongly depends on the similarity of linkage disequilibrium (LD) patterns in the study and reference populations. Here we develop a novel approach for genotype imputation in low-recombination regions that relies on the coalescent and permits to explicitly account for population demographic factors.
12p vilarryellison 29-10-2021 9 1 Download