質量傳送效應 的英文怎麼說
中文拼音 [zhíliángzhuànsòngxiàoyīng]
質量傳送效應
英文
mass transfer- 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
- 量 : 量動1. （度量） measure 2. （估量） estimate; size up
- 傳 : 傳名詞1 （解釋經文的著作） commentaries on classics 2 （傳記） biography 3 （敘述歷史故事的作品）...
- 送 : 動詞1 （運送; 傳送） deliver; carry 2 （贈送） give as a present; give 3 （伴送; 送別） see sb of...
- 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
- 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
- 質量 : 1 [物理學] mass 2 （產品或工作的優劣程度） quality 3 economy （離子源的）; 質量標準 quality level...
- 效應 : [物理學] effect; action; influence
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The research and developing of gps / gsm vehicles watch and control system based on analyzing gps positioning technology is discussed in this article. this system is a public security prevention and far distance watching control telecommunication management which has adopt the advanced system in the world including gps / gsm, gis and internet. through this system, all the movable objectives covered by gsm net can be kept being watched and controlled from far distance. the gps data of the movable objectives and different kinds of alarm data will be sent back to the service center through gsm or cable. then the center may send the information of movable objectives " gps data and help alarms that have been already classified and identified to the different departments to deal with linking the consumers through ddn, isdn, pstnand adsl. the advantages of this system is that it adopts mature gps technology and combines the movable telecommunication net - gsm provided by china telecommunicate trades throughout the nation and it can get voice information everywhere. by utilizing internet, vbandsql server computer technology, watch and control center and far distance terminals can aim at how to increase vehicles operating efficiency, decrease wear, promote service quality and build a concentrated system of watch and control, deploy and cammand, scientific management, coordinate and process, and safety in the professions relevant with transfortation of the city
移動目標的gps數據及各類報警數據通過gsm網路及電信有線網路傳回監控服務中心。該中心可通過ddn 、 isdn 、 pstn或adsl等方式與用戶相聯，將移動目標的gps定位信息，求救信息，報警等信息進行分類確認后，實時傳送到相應的職能部門進行處理。本系統的優點在於利用了成熟的gps全球衛星定位技術，並結合了我國電信行業在全國所開通的gsm移動通訊網路，在話音上實現了全國漫遊等特點，在監控中心和遠程用戶終端利用網際網路技術、 vb數據庫管理系統、 sqlserver分散式數據庫管理系統等計算機技術，可針對城市中與交通有關的各行各業如何提高車輛使用效率，降低損耗，提高服務質量，建立集監控、調度指揮、科學管理、協調運營、安全防範為一體的指揮控制體系，發揮其不可替代的作用。A source routing framework is proposed to route traffic flows proactively over multiple paths, which tries to optimize routes for long - lived flows based on dispersity routing ; based on mathematical analysis, our approach disperses incoming traffic flows onto multiple paths according to path qualities. long - lived flows are detected and migrated to the shortest path if their qos could be guaranteed there. suggesting non - disjoint path set, four types of dispersion policies are analyzed, and flow classification policy which relates flow trigger with link state update period is investigated
提出一種以業務量內在特性為基礎的前攝式多路路由演算法：以對業務量的內在特性分析為基礎，該方法在多路發送數據流的同時檢測非最短路徑上的長流，而後在保證服務質量的前提下將長流遷移到最短路徑上傳輸；前攝式多路路由使用以路徑質量評價為基礎的業務流分佈方法有效提高網路吞吐量，通過周期性的路徑質量評價適應時變網路狀況；模擬實驗表明，該方法可以有效提高「盡力而為」方式下的網路服務質量和資源利用率；浙江大學博士學位論文3Future mobile communications have to support the transmission of high rate data and multimedia applications in the radio spectrum, which is already extremely scarce. the basic idea of adaptive coded modulation is to maintain a constant throughput by varying the transmitted power level, symbol transmission rate, constellation size, coding rate or any combination of these parameters. thus, without sacrificing bit - error rate ( ber ), these schemes provide high average spectral efficiency by transmitting at high speeds under favorable channel conditions, and reducing throughput as the channel degrades
自適應編碼調制（ adaptivecodedmodulation ， acm ）的基本思想是在不犧牲系統傳輸性能（比如ber ）為代價的前提下，通過單獨改變發送功率、波特率、編碼方案、碼率、調制方式，或者是綜合改變前面所述的各種參數，在有利的通道條件下，獲得較大的吞吐量，當通道質量下將時，相應地降低傳輸速率，最終達到提高平均頻譜效率的目的。
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