An understanding of the policies, regulations, standards and techniques of radio spectrum management is useful to those who manage and administrate it, to operators, to equipment providers and to the users of wireless communication (i.e., all of us). For many years the author has been deeply involved in ruling the RF spectrum at the national, regional and global levels. The book is based on the professional experience of the author, his academic courses, presenta- tions and tutorials in five continents. The book reflects this legacy and will be of use to engineers, lawyers and economists, who serve the global industry of the wireless world; in it they may find solutions to the problems they frequently encounter.
標(biāo)簽： Management Spectrum Radio
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
Each of us is interested in optimization, and telecommunications. Via several meetings, conferences, chats, and other opportunities, we have discovered these joint interests and decided to put together this book.
標(biāo)簽： Telecommunications optimization heuristics
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
學(xué)習(xí)和掌握DAC0832的工作原理與編程，利用Proteus ISIS繪制DAC0832電路原理圖，
標(biāo)簽： proteus 計(jì)算機(jī) 測(cè)控技術(shù) 實(shí)驗(yàn)
上傳時(shí)間： 2020-06-01
上傳用戶：fhdjdjdhj
The information age is exploding around us, giving us access to dizzying amounts of data the instant it becomes available. Smart phones and tablets provide an untethered experience that offers stream- ing video, audio, and other media formats to just about any place on the planet. Even people who are not “computer literate” use Facebook to catch up with friends and family, use Google to research a new restaurant choice and print directions to get there, or Tweet their reactions once they have sampled the fare. The budding Internet-of-things will only catalyze this data eruption. The infrastructure supporting these services is also growing exponentially, and the technology that facilitates this rapid growth is virtualization.
標(biāo)簽： Virtualization Essentials
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
從 IO0（接?地址為 8000H）讀取開(kāi)關(guān)信息，從 IO1（接?地址為 8800H） 輸出控制燈亮滅。開(kāi)關(guān)閉合則 D1 燈點(diǎn)亮，開(kāi)關(guān)斷開(kāi)則 D1 燈滅。
標(biāo)簽： 微機(jī)原理；編程
上傳時(shí)間： 2020-06-02
上傳用戶：appleapple
Thanks to the advances in micromachining fabrication technologies and significant cost reduction due to mass production, miniature sensors of angular rate, or gyroscopes, found their way into the everyday life of every user of modern gadgets, such as smart phones, tablets or even wristwatches. Often without realising, many of us are carrying in our pockets fully equipped with all necessary sensors complete inertial navigation systems that not so long ago were available only for advanced vehicles in sea, land, air or space. Accelerometers and gyroscopes are found in specifications of any gadget supposed to react to user movements. And one of the most commonly used type of gyroscopes used to developed these systems is Coriolis vibratory gyroscope (CVG).
標(biāo)簽： Gyroscopes Vibratory Coriolis
上傳時(shí)間： 2020-06-06
上傳用戶：shancjb
n its Framework and Roadmap for Smart Grid Interoperability Standards, the US National Institute of Standards and Technology declares that a twenty-first-century clean energy economy demands a twenty-first-century electric grid. 1 The start of the twenty-first century marked the acceleration of the Smart Grid evolution. The goals of this evolution are broad, including the promotion of widespread and distributed deployment of renewable energy sources, increased energy efficiency, peak power reduction, automated demand response, improved reliability, lower energy delivery costs, and consumer participation in energy management.
標(biāo)簽： Communication Networks
上傳時(shí)間： 2020-06-07
上傳用戶：shancjb
December 2007, San Jose, California: It seems a long time ago. I walked into a big networking company to head their small Power over Ethernet (PoE) applications team. Surprisingly, I hardly knew anything about PoE prior to that day, having been a switching-power conversion engineer almost all my life. But it seemed a great opportunity to widen my horizons. As you can see, one notable outcome of that seemingly illogical career choice five years ago is the book you hold in your hands today. I hope this small body of work goes on to prove worthy of your expectations and also of all the effort that went into it. Because, behind the scenes, there is a rather interesting story to relate—about its backdrop, intertwined with a small slice of modern PoE history, punctuated by a rather res- tive search for our roots and our true heroes, one that takes us back almost two centuries
上傳時(shí)間： 2020-06-07
上傳用戶：shancjb
The next avatar of the Internet will revolutionize our world. In time, it will provide us a universal remote control, enabling us to monitor and control physical objects located anywhere on the planet, using a smart phone. It will make the universe around us programmable, allowing us to script the behav- ior of physical objects with electronic commands. This book is about such an emerging new version of the Internet.
標(biāo)簽： Infrastructure Construction Design RFID and an of
上傳時(shí)間： 2020-06-08
上傳用戶：shancjb
RFID Applied is just that. It’s about the application of RFID. If you want a book about electrical and computer engineering you need another source. Let’s say that you have been asked to lead an effort at your company to use RFID in your supply chain. You have heard about RFID because so much has been written on the topic since Wal-Mart and the US DoD made their proclamations that shippers attach RFID tags to their deliveries. This book is for you!
標(biāo)簽： RFID_Applied
上傳時(shí)間： 2020-06-08
上傳用戶：shancjb
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