線路使用系數 的英文怎麼說

中文拼音 [xiànlùshǐyòngxìshǔ]
線路使用系數 英文
line-use ratio
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 使 : Ⅰ動詞1 （派遣; 支使） send; tell sb to do sth : 使人去打聽消息 send sb to make inquiries2 （用; ...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. According to the analysis and comparison for existing wireless data traffics, a wireless bonding mode is adopted to realize mobile ticketing. the thesis also researches the safety issue on railway wireless ticketing system and put forwards the corresponsive solution. a series of safety techniques, for example data encryption, are adopted to ensure the safety of transaction between the wireless ticketing terminal and railway ticketing system

    本論文圍繞無線接入技術展開討論，通過對現有無線數據業務的分析比較，確定無線接入方式，實現移動方式的鐵路售票系統；研究鐵路無線售票系統所面臨的安全問題並提出相應的解決方案，在軟硬體結構設計中採用了一系列安全技術，並輔以科學的管理方法，使無線售票系統具備一定的安全防護能力。
  2. Thirdly, the paper discusses the driver of the peripheral equipment, how to port the uc / os - n and uclinux, h. 323 protocol and the application of the system in the digital speech classroom. also some software and hardware measure are adopted to enhance the system stability. at last, the shortcoming and the something to be improved are given. dsp can be used to realize real - time speech coding algorithm, and after porting ( ac / os - n, arm can manage the keyboard, the lcd and the ethernet peripheral etc. then the embedded network system with specific purpose can be used in others fields, such as pda, set of top, web tv, ect

    在實際設計實現中，為提高系統軟、硬體整體穩定性和可靠性，使用了以下幾種方法： （ 1 ）低電壓復位、抗電源抖動能力、增加時鐘監測電路、抗電磁干擾能力、散熱等技術； （ 2 ）多層pcb設計，線路板結構緊湊，電源部分採用數字5v 、 3 . 3v 、 3v 、 1 . 8v和模擬5v多電源供電； （ 3 ）選用表面貼和bga封裝的器件； （ 4 ）按照軟體工程的要求進行系統分析，規劃系統框圖、流程分析、模塊劃分，減小了不同模塊的相關性，從而最大限度避免了錯誤的發生。
  3. A general graphical user interface based on object - oriented technique, database and visualization in scientific computing has been conducted. we can draw electrical components of the distribution network and fill the components data easily. background programs analyze topology automatically and constitute node admittance matrix, node impedance matrix

    它使用圖形元件直接繪成系統接線圖，在屏幕上輸入元件參數，后臺程序自動進行網路拓撲分析，然後基於稀疏技術，利用支路掃描法形成節點導納陣，連續回代法形成節點阻抗陣。
  4. This dissertation introduces the status quo of structured cabling technology and the application of cad technology in the field of structured cabling, analyzes every development tools of autocad 2000 by comparison, introduces two tools : visual lisp development environment and autocad vba development environment, used in the development of structured cabling cad system, concludes the typical operation methods of database by the use of autocad vba, finally brings forward the method of developing structured cabling cad system and describes it in detail

    本文介紹了結構化布線技術的發展狀況和cad技術在結構化布線行業的應用狀況；對比分析了autocad2000的各種開發工具，介紹了結構化布線cad系統開發過程中使用的visuallisp開發環境和autocadvba開發環境；總結了利用autocadvba進行數據庫典型操作的方法；在此基礎上提出並詳細闡述了開發結構化布線cad系統的思路和方法。
  5. Using usb bus to transfer data blazed a way in communication between data acquisition system and computer

    使用usb總線傳輸數據，為數據採集系統與計算機之間的通訊開辟了新的道路。
  6. In the proposed method, the controller takes the buffer length as congestion indication, takes sources quality and bandwidth utility as object function so as to learn on line. as the controller outputs, the coding rate for input traffic sources and the corresponding user percentage are used to adjust the cells " arrival rate to the multiplexer buffer. compared with the previous method where cells " arrival rate is tuned only by the encoding rate and the encoding rates for all input traffic sources are regulated in a body, the proposed method guarantee that the quality of cells are optimal while cell loss rate is minimized, which means quality of service is guaranteed

    在該方法中，擁塞控制器以緩沖區大小信元作為擁塞指示，以信源質量和帶寬利用率作為目標函數進行在線學習，控制器輸出包括信源編碼率及其對應的用戶數在全部用戶中所佔的百分比，即根據信源編碼率及對應的用戶百分數調整信源輸入流，從而克服了以往擁塞控制方法中僅僅調整編碼率帶來的對所有信源進行整體調整的缺陷，使控制系統在信元損失率最小情況下確保信源輸入流質量最高，從而有效地利用了網路帶寬。
  7. This paper first begin with the connotation of virtual instrument technology, study and discuss the criterion and the working theory of usb deeply. on the principle of usb1. 1criterion, using usb interface chip usbn9604 and low consumption mirochip c8051f231, we designed the available interface of usb bus and its controlling software, turn the communicating function based usb bus between computer and testing device. second based on the developed interface of usb bus, using microchip pic16c62 and a mount of relays, we designed the multiswitching scanner and its controlling software to complete the funtion of accesses swithing in testing system. third calling the api function inside the windows using vb programming language, communicat with the impelling program of selected hid, achieve the function of testing instrument with usb interface, complete the development of upside software faced testing. at last, based on the deep studying of pcb testing method, used the developed multiswithing scanner and software faced testing, combinated with necessary testing instrument, we constructed the pcb testing system and analized the testing result simply

    論文首先從虛擬儀器的技術內涵出發，深入研究和討論了通用串列總線usb規范及工作原理，並依據usb1 . 1規范，採用usb介面晶元usbn9604和低功耗微處理器c8051f231設計開發了通用的usb總線介面及其控制固件，實現了通用計算機與測試設備之間基於usb總線的通信功能；其次，在所開發的usb總線介面的基礎上，使用微處理器pic16c62和多路繼電器開關，設計開發出實現測試系統中測試通道切換功能的多路通道掃描器及其控制固件；再次，採用vb語言編程，調用windows內部api函數，與選定hid類驅動程序進行通信，實現usb總線介面測試儀器功能，完成面向測試的上層軟體開發；最後，在深入研究印刷電路板測試方法的基礎上，利用已開發的多路通道掃描器和面向測試軟體，結合必要測試儀器組建印刷電路板測試系統，並對測試結果進行了簡要的誤差分析。
  8. The system realizes multiple serial port communication and management by way of multi - port serial board ( 2 ) use the database technology to manage and manipulate the physics information data of nc tool. the basic information management system, the nc program auto - create system, the simulation of cutter working and dnc communication program are integrated to one system. it realizes the offline programming and controls of no - punched tape, helps to cut short the supplementary cutting time and improves the efficiency of to program and machine tools and realizes the separation and seamless connection of program and manufacture

    本課題以硬體為輔助手段，以軟體為主要手段實現了以下功能：以串口擴展卡來實現網路中多臺數控機床的通信和管理；使用數據庫技術對數控機床的物理信息進行管理和操作，將數控機床基礎信息管理系統、 nc程序自動生成模塊、刀具加工軌跡模擬模塊和dnc通信介面模塊集成為一體，實現了數控加工的離線編程和數控系統的無帶控制，提高了編程效率、質量，縮短加工輔助時間，提高了機床的效率，既實現了編程和加工的分離，又達到它們之間的無縫連接。
  9. Detailed maps of the chakra system and their connecting meridians and pathways, have been used for thousands of years in eastern mysticism and medicine, i. e., acupuncture

    在東方神秘主義和針刺療法中，詳細的脈輪系統圖及其相互關聯的子午線和路徑，已經使用了數千年之久。
  10. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  11. This paper supplies the theoretical analysis and practical discussion on lateral force & friction from point of view about vehicle suspension and shock absorber itself. it gives a new utility engineering concept called shock absorber stiff coefficient. we also sum up the technology norms and parameters of the test of shock absorber lateral forre & friction property on domestic equipment comprehensively

    該文從車輛懸架系統的角度和減振器本體的角度對車輛筒式減振器側向受力與摩擦進行了理論分析和試驗.提出了減振器硬系數等工程實用新概念.文中系統歸納了使用國產設備進行減振器側向受力與摩擦臺架試驗的技術路線與試驗參數
  12. Abstract : this paper supplies the theoretical analysis and practical discussion on lateral force & amp; friction from point of view about vehicle suspension and shock absorber itself. it gives a new utility engineering concept called shock absorber stiff coefficient. we also sum up the technology norms and parameters of the test of shock absorber lateral forre & amp; friction property on domestic equipment comprehensively

    文摘:該文從車輛懸架系統的角度和減振器本體的角度對車輛筒式減振器側向受力與摩擦進行了理論分析和試驗.提出了減振器硬系數等工程實用新概念.文中系統歸納了使用國產設備進行減振器側向受力與摩擦臺架試驗的技術路線與試驗參數
  13. Main technic of giss webgiso thus function modules architecture and network topological structure are confirmed webgis system implements the basic function of electronical map, such as map zoonu pan, and the abundant query of geograph and database by using maplnfo mapxtreme for java as map server and jsp., java technico this system also can implement the routing of linesx analysing of buffer and so on0 this paper advances storage model of roads and pipelines topology data, efficiently solves the maintenace problem of network topology data of webgis and implements the shortest path algorathm based on webgis by improving it0 the system has better opening by suppling database interface of map ? the system has perfect on - line help and user forum and favorable interfaces and implementation of this system makes fundament for the further research of webgiso

    本系統利用mapinfomapxtremeforjava作為地圖服務器，採用jsp和java技術，實現了基於webgis的電子地圖的縮放、漫遊等基本功能，並具有豐富的圖文定位查詢功能；實現線路路由、緩沖區分析等輔助決策功能；構建了道路管線網路拓撲數據的存儲模型，有效地解決了基於webgis的網路拓撲數據的維護問題；對dijkstra演算法進行了一些改進，實現了基於webgis的最短路徑演算法；本系統提供了電子地圖數據庫介面，使本系統具有很好的開放性和通用性； webgis系統軟體具有完善的在線幫助和用戶交流論壇，人機界面友好。
  14. It not only solves the problem of optimized control of the reactive current exchanging among branches, in other words, realizes the auto - tracking to the reactance factor, but also greatly improved the reliability of the system. to design the high voltage line wireless signal acquisition device with self - feed source, we applied electromagnet induction principle and digital communication technique

    系統在優化控制技術中採用了電容器補償控制的兩段控制模型，不僅解決了分支線路之問穿越無功電流的最優控制問題，實現了功率因數的自動跟蹤，而且使整個系統的可靠性大大提高。
  15. With the characteristics of actual ship - board massmer having been duly considered, this lab - based massmer has been designed to have friendly interfaces, convenient operation and management, reliable performance and to be in conformity with the requirements of education and training. during the development of this system, a number of up - to - date technologies in the computer information area have been fully employed such as the technology in fieldbus, network, database, netdde and intouch etc. as a result, this system is characterized by the following points : 1

    在實驗室內建立的這套船舶機艙監測報警模擬系統，充分考慮並結合實際船舶機艙監測報警系統的特點，該系統具有良好的用戶界面，操作管理方便，工作可靠，符合教學和訓練需要，系統在開發過程中，充分利用了目前計算機信息領域的許多最新技術，如現場總線技術、網路技術、數據庫技術、 netdde技術、 intouch技術等，使本系統具有以下主要特點： 1
  16. The use of digital radio transmission and the advanced handover algorithms between radio cells in gsm networks allows for significantly better frequency usage than in analogue cellular systems, thus increasing the number of subscribers that can be served

    Gsm網路使用數線傳輸和先進的無線越區切換演算法，可以得到比模擬蜂窩系統好得多的頻率利用，因而增加了服務的用戶數。
  17. Distribution automation using distribution line carrier systems - general considerations - guide to identification of data transmission parameters concerning medium and low - voltage distribution mains

    使用配電線路載波系統的自動配電.一般考慮.關于中壓和低壓配電干線數據傳輸參數的識別指南
  18. Rtk employs the data communication link to transfer the original observation data or the phase correction data of the known reference station, so the geometric relation between the known reference station and the unknown point can be calculated in the way of online or real - time through rtk

    Rtk使用由數據通信鏈路傳送的已知參考站gps接收機獲得的原始觀測數據或相位改正數據，在線式或實時計算未知點與已知參考站的幾何關系，從而得到用戶接收機的精確位置。
  19. Based on the findings above, more conclusions are presented in the following : 1 ) adolescents have a lower, general evaluation on internet environment and they are not satisfied with it ; adolescents have positive behaviors rather than negative behaviors on internet ; adolescents have a higher self - evaluation on internet ; the commonly and frequently negative internet behaviors are cheating, legpulling and adventuring, etc ; the internet use motivations are chat on - line, amusement, information reception, correspondance, emotional modulation, etc. internet use only has a negative influence on a few numbers of the adolescents ;. 2 ) adolescents most frequently use chat on - line, which is sequently followed with amusement, general information browse, e - mail, etc. in addition, there is no gender significant difference between internet use and user ' s surfing time

    研究發現： 1 ）青少年對網際網路環境的總體評價較低；在網際網路中積極的行為多於消極的行為；對自我網際網路行為的評價高於對他人的行為評價；常見的消極網際網路行為依次是欺騙、惡作劇與冒險，且對他人構成的消極影響較小；網際網路使用動機依次是在線聊天、娛樂休閑、獲得信息、與親朋好友聯系和調節情緒；網際網路使用只對少數青少年個體造成負面影響； 2 ）青少年在網際網路上使用最多是在線聊天，其次為娛樂、聽音樂、看電影、一般的信息瀏覽、收發郵件和搜尋網上資源等。
  20. Second, pwm - fcls are separately installed in the transmission line and the feeders where a short circuit fault may occur. matlab is used to simulate this process

    其次，將pwm - fcl分別安裝在發生短路故障的輸電線路以及配電系統的饋線上，使用matlab對這兩種情況進行數字模擬。
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