應(yīng)急系統(tǒng)(emergency System, ES)主要是針對(duì)自然災(zāi)害,安全事故，危險(xiǎn)物泄露，街頭騷亂,恐怖活動(dòng)等突發(fā)事件發(fā)生后所采取的一系列應(yīng)急措施和行動(dòng)而建立的系統(tǒng)，主要目的是在最短的時(shí)間內(nèi)最大限度地減輕災(zāi)害所造成的損失。
標(biāo)簽： emergency System ES 應(yīng)急系統(tǒng)
上傳時(shí)間： 2016-01-14
上傳用戶：xaijhqx
Alkaline batteries are convenient because they’re easy tofi nd and relatively inexpensive, making them the powersource of choice for portable instruments and devicesused for outdoor recreation. Their long shelf life alsomakes them an excellent choice for emergency equipmentthat may see infrequent use but must be ready to go on amoment’s notice. It is important that the DC/DC convertersin portable devices operate over the widest possiblebattery voltage range to extend battery run time, and thussave the user from frequent battery replacement.
標(biāo)簽： 428 DN 同步升壓 轉(zhuǎn)換器
上傳時(shí)間： 2014-12-24
上傳用戶：569342831
針對(duì)煤礦井下調(diào)度及緊急救援系統(tǒng)的需求，以DTMF編解碼模塊為核心，設(shè)計(jì)了具有自動(dòng)撥號(hào)功能的新型電話系統(tǒng)。該系統(tǒng)利用MT8880對(duì)DTMF信號(hào)的編解碼功能實(shí)現(xiàn)一鍵撥號(hào)和遠(yuǎn)程設(shè)置，通過檢測(cè)振鈴和忙音信號(hào)，完成自動(dòng)摘機(jī)和掛機(jī)過程，配合AGC等外圍電路達(dá)到話音清晰流暢的效果。 Abstract: To meet the demand for mine scheduling and emergency rescue system， with using DTMF signal codec as the core， a new telephone system was designed with automatic dialing function. In the system， the DTMF signal encoding and decoding function of MT8880 was used to achieve one-touch dialing and remote setting. The circuit detects the ringing and busy signal， and then completes automatic off-hook and hangup. With AGC(Automatic Gain Control) and other peripheral circuits， the voice was regulated to a clear and smooth effect.
標(biāo)簽： 8880 MT 撥號(hào)電話 系統(tǒng)設(shè)計(jì)
上傳時(shí)間： 2014-11-18
上傳用戶：ly1994
In the next generation of wireless communication systems, there will be a need for the rapid deployment of independent mobile users. Significant examples include establishing survivable, efficient, dynamic communication for emergency operations, disaster relief efforts, and military networks. Such network scenarios cannot rely on centralized and organized connectivity, and can be conceived as applications of mobile ad hoc networks. A MANET is an autonomous collection of mobile users that communicate over relatively bandwidth constrained wireless links. Since the nodes are mobile, the network topology may change rapidly and unpredictably over time. The network is decentralized, where all network activity including discovering the
標(biāo)簽： communication generation the wireless
上傳時(shí)間： 2014-01-07
上傳用戶：cuibaigao
In the next generation of wireless communication systems, there will be a need for the rapid deployment of independent mobile users. Significant examples include establishing survivable, efficient, dynamic communication for emergency operations, disaster relief efforts, and military networks. Such network scenarios cannot rely on centralized and organized connectivity, and can be conceived as applications of mobile ad hoc networks. A MANET is an autonomous collection of mobile users that communicate over relatively bandwidth constrained wireless links. Since the nodes are decentralized, where all network activity including discovering the
標(biāo)簽： communication generation the wireless
上傳時(shí)間： 2014-01-04
上傳用戶：tedo811
Mobile radio networks have risen in prominence over the last few years, primarily by the rise in popularity of cellular phones. It is important to recognise however that mobile radio technology fulfils a far wider range of applications that meet the demands of the modern world. These include the networks that allow police and emergency services to serve the public, military networks for operations and humanitarian support, and the mobile technol- ogies that are vital to the safety of aircraft.
標(biāo)簽： Network Mobile Design Radio
上傳時(shí)間： 2020-05-30
上傳用戶：shancjb
With the rapid development of electric vehicles (EVs) as well as the promotion and application of vehicle-to-grid (V2G) technologies, EVs charging loads, as flexible loads, have the potential to participate in the grid services, including peak shaving and valley filling, frequency regulation (FR), emergency power, energy market participation, and so on. Therefore, great attention has been paid to EVs and V2G. Focusing on the interactions between EVs and power system, this book aims to bring readers with basic knowledge of electrical engineering promptly to the frontier of the EVs’ influence on power system and environment. This book may serve as a reference for scientists, electrical engineers, and postgraduate students majoring in electrical engineering or other related fields.
標(biāo)簽： Electric Vehicles System Power on
上傳時(shí)間： 2020-06-07
上傳用戶：shancjb
In this new edition of the book, only minor changes were made to the original nine chapters but three new chapters treat topics of increasing interest to GPS users and equipment developers. One topic, improving the GPS receiver sensi- tivity may extend their operations into buildings, which is becoming important for emergency rescue and urban warfare.
標(biāo)簽： Fundamentals_of_Global_Positionin g_System
上傳時(shí)間： 2020-06-09
上傳用戶：shancjb
Assessment of the Possible Health Effects of Ground Wave emergency Network (1993)
標(biāo)簽： gwen 地波網(wǎng)絡(luò)
上傳時(shí)間： 2022-02-18
上傳用戶：trh505
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