AFCRL Atmospheric Absorption Line Parameters Compilation
標簽： AFCRL Atmospheric Absorption Line Parameters Compilation
上傳時間： 2016-03-30
上傳用戶：xilong1393
DLMS 編輯 本詞條缺少名片圖，補充相關內容使詞條更完整，還能快速升級，趕緊來編輯吧！ 配電線報文規范(Distribution Line Message Specification) [IEC 62056-53]是應用層規范，獨立于應用層以下的各個低層，因而也就與通信信道無關，設計用于在計算機集成環境中支持與（能量）分配設備間的消息交換，是由IEC TC57建立并以IEC 61334-4-41發布的國際標準。 中文名 配電線報文規范 外文名 Distribution Line Message Specification) 建立者 IEC TC57 應用領域 于抄表、遠程控制以及增值服務等 這個概念被進一步發展成為設備語言報文規范，其目的在于為結構化建模和儀表數據交換提供一個互操作環境，支持任何能量類型如電、水、氣或熱的計量，應用于遠程抄表、遠程控制以及增值服務
上傳時間： 2016-04-07
上傳用戶：auqaiss
Line Driver, 16sop, 5in-5out
上傳時間： 2016-07-06
上傳用戶：shijy
Dynasty 350, 700 208/575 Volt Models W/Auto-Line Maxstar 350, 700 File: TIG (GTAW) Including Optional Cart And Cooler CE And Non-CE Models
上傳時間： 2017-03-11
上傳用戶：zosoong
J1為Line input 5V，兩個104電容為濾波電容，引腳分別接地，主要濾掉高頻紋波，防止自激振蕩；47UF和100UF為濾波電容，主要濾掉低頻紋波；R1作限流作用以保護穩壓二極管D2，當輸入電壓和輸出負載電流發生變化時R1通過本身壓降的變化，來調節穩壓二極管D2的工作電流，從而起到穩壓作作用。
上傳時間： 2017-07-29
上傳用戶：18826226223
ble Logic Controller，可編程邏輯控制器，一種數字運算操作的電子系統，專為在工業環境應用而設計的。它采用一類可編程的存儲器，用于其內部存儲程序，執行邏輯運算，順序控制，定時，計數與算術操作等面向用戶的指令，并通過數字或模擬式輸入/輸出控制各種類型的機械或生產過程。是工業控制的核心部分。 另外PLC還有以下幾個名稱： PLC = Power Line Communication，電力線通信，即我們俗稱的“電力線上網”。 PLC = Public Listed Co
標簽： 驅動器
上傳時間： 2018-06-27
上傳用戶：454545
書中以4個面向來表現C++的本質：procedural（程序性的）、generic（泛型的）、object-based（個別對象的）、object-oriented（面向對象的），全書圍繞著一系列逐漸繁復的程序問題，以及用以解決這些問題的語言特性。循此方式，讀者不只學到C++的函數和結構，也會學習到它們的設計目的和基本原理
標簽： Essential+C++
上傳時間： 2019-06-10
上傳用戶：wigen
In recent years, cellular voice networks have transformed into powerful packet-switched access networks for both voice communication and Internet access. Evolving Universal Mobile Telecommunication System (UMTS) networks and first Long Term Evolution (LTE) installations now deliver bandwidths of several megabits per second to individual users, and mobile access to the Internet from handheld devices and notebooks is no longer perceived as slower than a Digital Subscriber Line (DSL) or cable connection. Bandwidth and capacity demands, however, keep rising because of the increasing number of people using the networks and because of bandwidth-intensive applications such as video streaming. Thus, network manufacturers and network operators need to find ways to continuously increase the capacity and performance of their cellular networks while reducing the cost.
標簽： BRINGING NETWORKS Beyond and 3G 4G
上傳時間： 2020-05-26
上傳用戶：shancjb
This books attempts to provide an extensive overview on Long-Term Evolution (LTE) networks. Understanding LTE and its Performance is purposely written to appeal to a broad audience and to be of value to anyone who is interested in 3GPP LTE or wireless broadband networks more generally. The aim of this book is to offer comprehensive coverage of current state-of-the-art theoretical and techno- logical aspects of broadband mobile and wireless networks focusing on LTE. The presentation starts from basic principles and proceeds smoothly to most advanced topics. Provided schemes are developed and oriented in the context of very actual closed standards, the 3 GPPP LTE.
標簽： Performance LTE and its
上傳時間： 2020-05-27
上傳用戶：shancjb
Fordecades,microwavelineofsight(LOS)linkshavebeenoneofthebasictechnolo- gies used to build telephone networks. Until 1980, the fast rollout of high capacity transport networks and deployment of links in areas with challenging geographic characteristics could not be understood without this technology.
上傳時間： 2020-05-28
上傳用戶：shancjb
