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This synthesis will be of interest to traffic engineers and others interested in the capabilities of currently available equipment for traffic signal control. Information is provided on functions and operations of controller assemblies, displays, detectors, communications, and computerized system masters. Traffic engineers need to know the functional capabilities of the various types of signal control equipment in order to select appropriate equipment for a specific application. This report of the Transportation Research Board describes the functions of each type of equipment and how it works, and gives advantages, disadvantages, and limitations.
As we increasingly use electronic devices to direct our daily lives, so grows our dependence on reliable energy sources to power them. Because modern electronic systems demand steady, efficient, reliable DC voltage sources—often at a sub-1V level—commercial AC lines, batteries, and other common resources no longer suffice. New technologies also require intricate techniques to protect against natural and manmade disasters. Still, despite its importance, practical information on this critical subject remains hard to find. Using simple, accessible language to balance coverage of theoretical and practical aspects, DC Power Supplies, Power Management and Surge Protection details the essentials of power electronics circuits applicable to low-power systems, including modern portable devices. A summary of underlying principles and essential design points, it compares academic research and industry publications and reviews DC power supply fundamentals, including linear and low-dropout regulators. Content also addresses common switching regulator topologies, exploring resonant conversion approaches. Coverage includes other important topics such as: Control aspects and control theory Digital control and control ICs used in switching regulators Power management and energy efficiency Overall power conversion stage and basic protection strategies for higher reliability Battery management and comparison of battery chemistries and charge/discharge management Surge and transient protection of circuits designed with modern semiconductors based on submicron dimension transistors This specialized design resource explores applicable fundamental elements of power sources, with numerous cited references and discussion of commercial components and manufacturers. Regardless of their previous experience level, this information will greatly aid designers, researchers, and academics who, study, design, and produce the viable new power sources needed to propel our modern electronic world. CRC Press Authors Speak Nihal Kularatna introduces his book. Watch the video
DC-DC converters have many applications in the modern world. They provide the required power to the communication backbones, they are used in digital devices like laptops and cell phones, and they have widespread applications in electric cars, to just name a few. DC-DC converters require negative feedback to provide a suitable output voltage or current for the load. Obtaining a stable output voltage or current in presence of disturbances such as: input voltage changes and/or output load changes seems impossible without some form of control. This book tries to train the art of controller design for DC-DC converters. Chapter 1 introduces the DC-DC converters briefly. It is assumed that the reader has the basic knowledge of DC-DC converter (i.e., a basic course in power electronics). The reader learns the disadvantages of open loop control in Chapter 2. Simulation of DC-DC converters with the aid of Simulink® is discussed in this chapter as well. Extracting the dynamic models of DC-DC converters is studied in Chapter 3. We show how MATLAB® and a software named KUCA can be used to do the cumbersome and error-prone process of modeling automatically. Obtaining the transfer functions using PSIM® is studied as well. These days, softwares are an integral part of engineering sciences. Control engineering is not an exception by any means. Keeping this in mind, we design the controllers using MATLAB® in Chapter 4. Finally, references are provided at the end of each chapter to suggest more information for an interested reader. The intended audiencies for this book are practice engineers and academians.
Over 5,300 total pages .... MARINE RECON Reconnaissance units are the commander’s eyes and ears on the battlefield. They are task organized as a highly trained six man team capable of conducting specific missions behind enemy lines. Employed as part of the Marine Air- Ground Task Force, reconnaissance teams provide timely information to the supported commander to shape and influence the battlefield. The varying types of missions a Reconnaissance team conduct depends on how deep in the battle space they are operating. Division Reconnaissance units support the close and distant battlespace, while Force Reconnaissance units conduct deep reconnaissance in support of a landing force. Common missions include, but are not limited to: Plan, coordinate, and conduct amphibious-ground reconnaissance and surveillance to observe, identify, and report enemy activity, and collect other information of military significance. Conduct specialized surveying to include: underwater reconnaissance and/or demolitions, beach permeability and topography, routes, bridges, structures, urban/rural areas, helicopter landing zones (LZ), parachute drop zones (DZ), aircraft forward operating sites, and mechanized reconnaissance missions. When properly task organized with other forces, equipment or personnel, assist in specialized engineer, radio, and other special reconnaissance missions. Infiltrate mission areas by necessary means to include: surface, subsurface and airborne operations. Conduct Initial Terminal Guidance (ITG) for helicopters, landing craft, parachutists, air-delivery, and re-supply. Designate and engage selected targets with organic weapons and force fires to support battlespace shaping. This includes designation and terminal guidance of precision-guided munitions. Conduct post-strike reconnaissance to determine and report battle damage assessment on a specified target or area. Conduct limited scale raids and ambushes. Just a SAMPLE of the included publications: BASIC RECONNAISSANCE COURSE PREPARATION GUIDE RECONNAISSANCE (RECON) TRAINING AND READINESS (T&R) MANUAL RECONNAISSANCE REPORTS GUIDE GROUND RECONNAISSANCE OPERATIONS GROUND COMBAT OPERATIONS Supporting Arms Observer, Spotter and Controller DEEP AIR SUPPORT SCOUTING AND PATROLLING Civil Affairs Tactics, Techniques, and Procedures MAGTF Intelligence Production and Analysis Counterintelligence Close Air Support Military Operations on Urbanized Terrain (MOUT) Convoy Operations Handbook TRAINING SUPPORT PACKAGE FOR: CONVOY SURVIVABILITY Convoy Operations Battle Book Tactics, Techniques, and Procedures for Training, Planning and Executing Convoy Operations Urban Attacks