Computational Electromagnetism: Variational Formulations, Complementarity, Ed…

Computational electromagnetism begins where electromagnetic theory stops, and stops where engineering takes over. Its purpose is not to establish Maxwell equations, and other essential physical theories, but to use them in mathematical modelling, with concrete problems in view. Modelling is this activity by which questions about a physical situation are translated into a mathematical proble…

Acoustic Emission Testing

This book addresses one of the most interesting techniques used for the non-destructive evaluation of materials: The acoustic emission technique (AET). Compared to other non-destructive testing (NDT) methods, AET can monitor changes in materials behavior over a long time and without moving one of its components i.e. sensors. This makes the technique quite unique along with the ability to detec…

Type Synthesis, Kinematic Analysis, and Optimal Design of a Novel Class of Sc…

A novel class of spatial four degree-of-freedom Schönflies-motion parallel manipulators with four identical subchains is presented. Their features are that each serial subchain undergoes the pure Schönflies motion without redundant joints. The parallel mechanisms possess the simplest topology and are suitable for pick-and-place operations. Kinematic analysis of the 4- parallelmanipulator, inc…

Thermal-Stability Comparison of Glass- and Silicone-Based High-Power Phosphor…

The lumen degradation, chromaticity shift, transmittance loss, and mean-time-to-failure (MTTF) evaluation in glass- and silicone-based high-power phosphor-converted whitelight- emitting diodes (LEDs) (PC-WLEDs) under accelerated thermal aging at 150 ◦C, 200 ◦C, and 250 ◦C are presented and compared. The silicone-based PC-WLEDs exhibited less thermal stability than the glass-based PC-WLED…

Building Energy Management: Integrated Control of Active and Passive Heating,…

Buildings account for nearly 40% of global energy consumption. About 40% and 15% of that are consumed, respectively, by HVAC and lighting. These energy uses can be reduced by integrated control of active and passive sources of heating, cooling, lighting, shading and ventilation. However, rigorous studies of such control strategies are lacking since computationally tractable models are not avail…

Electrical Characterization of Test Sockets With Novel Contactors

Novel spring contactors were designed and characterized for wafer-level interposer and high-speed package test system applications, especially for wafer-level packages. These contactors can be used as replacement for vertical wafer probes as well as test sockets used in the final test. The contactor pin consists of a plunger section made of beryllium copper and a plated helical stainless steel …

An Optimization Approach to Improved Petri Net Controller Design for Automate…

Sensors and actuators are two indispensable parts in the paradigm of feedback control. Their implementation cost should be properly evaluated and constrained. In the previous work, a Petri net monitor with the least cost is synthesized through integer programming formulation. Despite its technical correctness, the existing method may lead to undesirable results when the net structure contains s…

Design of a Nanometric CMOS Memory Cell for Hardening to a Single Event With …

Nanometric CMOS is likely to experience the occurrence of a single event causing a multiple-node upset. This paper presents a novel memory cell design as variant of the DICE cell (that is tolerant to only a single event with a single-node upset). The proposed design is referred to as TDICE and uses transistors to block the paths that connect a node to the next node in the feedback loop of the m…

Layout Consideration and Circuit Solution to Prevent EOS Failure Induced by L…

This paper presented a practical industry case of electrical overstress (EOS) failure induced by the latchup test in high-voltage integrated circuits (ICs). By using proper layout modification and additional circuit, the unexpected EOS failure, which is caused by negative-current-triggered latchup test, can be successfully solved. The new design with proposed solutions has been verified in the …

Inverted-Cone-Lens Encapsulant With Gradient Surface for Ring-Remote-Phosphor…

The ordinary ring-remote-phosphor structure consisting of an inverted-cone-lens encapsulant and a surrounding ring-remote-phosphor layer reduces the probability of the backward light from the phosphor layer to the absorptive lightemitting diode (LED) chip and then increases the package extraction efficiency. However, some of the blue light emitting from the LED chip impinges on the inverted-co…

Hamming SEC-DAED and Extended Hamming SEC-DED-TAED Codes Through Selective Sh…

Radiation particles can impact registers or memories creating soft errors. These errors can modify more than one bit causing a multiple cell upset (MCU) which consists of errors in registers or memory cells that are physically close. These MCUs can affect a single word, producing adjacent bit errors. Hamming codes are commonly used to protect memories or registers from soft errors. However, whe…

Conduction Mechanisms and Breakdown Characteristics of Al2O3-Doped ZrO2 High-…

This paper presents the results of I–V and constant-voltage-stress measurements on symmetrical dielectric ZrO2/Al2O3/ZrO2 film stacks of different thicknesses. The films were grown by atomic layer deposition and structured into cylindrical metal–insulator–metal capacitors. The temperaturedependent leakage characteristics and time-dependent dielectric breakdown behaviors were investigated.…

Improvement of Electrochemical Migration Resistance by Cu/Sn Intermetallic Co…

A thin Sn coating was coated on the Cu electrodes on a printed circuit board (PCB) and annealed to form Cu/Sn intermetallic compounds (IMCs). Electrochemical migration (ECM) characteristics were investigated with respect to coating thickness, conductor spacing, and potential bias. From the anodic polarization test, the corrosion current of Cu/Sn IMCs was reduced to nearly two orders of magnitud…

System-Level ESD Protection Design Using On-Wafer Characterization and Transi…

A methodology for the design of circuits robust to system-level electrostatic discharge (ESD) stress is presented and verified with two case studies. The combination of on-wafer characterization and transient simulations enables the ESD designer to study the behavior of the component-level ESD protection design during system-level ESD stress with and without adding off-chip protection devices. …

Study of Bonding Wire Failure Effects on External Measurable Signals of IGBT …

The relationship between bonding wire liftoff and terminal voltage in insulated gate bipolar transistor (IGBT) power module is studied. Bonding wire liftoff failure is one of the most dominant limiting factors to the reliability behavior of IGBT power module. In this paper, in order to monitor this type of fault, the effects of the typical degradations are considered. The parasitic inductance a…

Design and Optimization of Resonance-Based Efficient Wireless Power Delivery …

Resonance-based wireless power delivery is an efficient technique to transfer power over a relatively long distance. This technique typically uses four coils as opposed to two coils used in conventional inductive links. In the four-coil system, the adverse effects of a low coupling coefficient between primary and secondary coils are compensated by using high-quality ( ) factor coils, and the ef…

Provably Secure Integrated On/Off-Line Electronic Cash for Flexible and Effic…

Due to the ubiquity of the Internet and wireless networks, the development of electronic commerce is growing up rapidly. Many payment mechanisms, such as electronic cash (e-cash), credit cards, and electronic wallets, for electronic transactions have been proposed. Especially, e-cash has become popular since it can fully protect the privacy of customers in various electronic transactions. In g…

Problems and solutions on electromagnetisme

Edisi

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ISBN/ISSN

981-02-0625-9

Deskripsi Fisik

x, 665 Hlm.

Judul Seri

Major American Universities Ph.D. Qualifying Questions and Solutions

No. Panggil

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Power Plant Engineering

Convinced by the suggestions made by the reviewers and users of the book, two new chapters, Non-conventional power generation: Direct Energy Conversion, and Environmental Degradation and use of Renewable Energy., have been added in this revised edition. Considering the current global environmental scenario, the last chapter is particulary important and considerable emphasis has been stressed on…

Power Plant Engineering

There have been significant developments and advances in the field of power plant engineering, computer applications on energy audit and management, environmental audit and management, human development and environment. The authors have been encouraged to write this pioneer book for the benefit of students of engineering and researchers due to their contribution in power generation covering the…

Power plant engineering

The electric power generation and distribution industry has evolved during almost exactly one century into its present form. This development has been driven by economics, technological advancements, and government regulations. These diverse forces have produced generation and distribution systems that are reliable, safe, and environmentally acceptable, suitable for service throughout the world…

The Role of Optics and Electronics in High-Capacity Routers

This paper examines the role of optical and electronic technologies in future high-capacity routers. In particular, optical and electronic technologies for use in the key router functions of buffering and switching are compared. The comparison is based on aggressive but plausible estimates of buffer and switch performance projected out to around 2020. The analysis of buffer technologies uses a…

Electrical power systems

Edisi

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ISBN/ISSN

978-81-224-2515-4

Deskripsi Fisik

x, 470 Hlm.

Judul Seri

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No. Panggil

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Schaum’s outline of theory and problems of basic circuit analysis

Studying from this book will help both electrical technology and electrical engineering students learn circuit analysis with, it is hoped, less effort and more understanding. Since this book begins with the analysis of dc resistive circuits and continues to that of ac circuits, as do the popular circuit analysis textbooks, a student can, from the start, use this book as a supplement to a ci…

Electric Vehicle Technology Explained

The first demonstration electric vehicles were made in the 1830s, and commercial electric vehicles were available by the end of the 19th century. The electric vehicle has now entered its third century as a commercially available product and as such it has been very successful, outlasting many other technical ideas that have come and gone. However, electric vehicles have not enjoyed the enormous…

Understand Electronics

This is a book for anyone who wants to get to know about electronics. It requires no previous knowledge of the subject, or of electrical theory, and the treatment is entirely non-mathematical. It begins with an outline of electricity and the laws that govern its behaviour in circuits. Then it describes the basic electronic components and how they are used in simple electronic circuits. Sem…

Digital electronics : principles, devices, and applications

Digital electronics is essential to understanding the design and working of a wide range of applications, from consumer and industrial electronics to communications; from embedded systems, and computers to security and military equipment. As the devices used in these applications decrease in size and employ more complex technology, it is essential for engineers and students to fully understa…

Control Systems

Automatic control of many day to day tasks relieves the human beings from performing repetitive manual operations. Automatic control allows optimal performance ,of dynamic systems, increases productivity enormously, removes drudgery of performing same task again and again. Imagine manual control of a simple room heating system. If the room temperature is to be maintained at a desired temper…

Electricity and Magnetism

Who are you? However much you relate your identity to your physical appearance, you know that your personality ultimately resides in the unique arrangement of your brain’s electrical network. Mary Shelley may have conceived of electricity as a mystical life force that could jerk the leg of a dead frog or animate Dr. Frankenstein’s monster, but we now know the truth is both more subtle and …

High performance MIM capacitor using anodic alumina dielectric

Abstract. We report on the fabrication and electrical characterization of MIM capacitors using barrier type anodic alumina dielectric between Al electrodes. Its fabrication is based on CMOS compatible room temperature processing using electrochemistry which is a simple and cost effective process. The obtained capacitors exhibit large capacitance density (above 7 fF/lm2) and very small leaka…

Three-Dimensional Graphene-Based Macro- and Mesoporous Frameworks for High-Pe…

ABSTRACT: Three-dimensional graphene-based frameworks (3D-GFs) with hierarchical macro- and mesoporous structures are presented. The interconnected macropores are derived from hydrothermally assembled 3D graphene aerogels (GAs), while the mesopores are generated by the silica networks uniformly grown on the surface of graphene. The resulting 3D-GFs exhibit narrow mesopore size distribution (2…

The effects of surface modification on the supercapacitive behaviors of novel…

Abstract. Novel mesoporous carbon has been synthesized using rod-like nano-hydroxyapatite (HA) particles as templates, sucrose as carbon precursor by polymerizing, carbonizing and the removal of templates with HCl solution. In the process, HA not only acted as an endotemplate but also an exotemplate producing micropores and mesopores. Subsequently, mesoporous carbon was modified by HNO3 sol…

A wavelet-support vector machine combined approach for location of transmissi…

Abstract: This paper presents a wavelet-SVM (support vector machine) combined approach for digital relaying. The proposed algorithm for fault location employs wavelet transform together with SVM. Computer simulations using MATLAB have been conducted for a 300 km, 400 kV line. The SVM has been trained using simulated data to give desired output for fault locations for faults at any unknown dis…

Photovoltaic unified power quality conditioner sag and interruption mitigation

Abstract: This paper proposes a new configuration of photovoltaic unified power quality conditioner (PV-UPQC) that consists of the PV array, DC/DC converter and UPQC for compensating the voltage interruption. The proposed PV-UPQC can compensate the reactive power, harmonic current, voltage sag and swell and the voltage interruption. The performance of the proposed system is verified through …