無損耗線路 的英文怎麼說

中文拼音 [wúsǔnhàoxiànlù]
無損耗線路 英文
lossfree line
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 損 : Ⅰ動詞1 （減少） decrease; lose 2 （損害） harm; damage 3 [方言] （用尖刻的話挖苦人） speak sarcas...
  • 耗 : Ⅰ動1 （減損; 消耗） consume; cost 2 [方言] （拖延） waste time; dawdle Ⅱ名詞1 （壞的音信或消息） ...
  • 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...
  • 損耗 : 1. （損失消耗） loss; wear and tear; deterioration; waste 2. [商業] wastage; spoilage
  • 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
  1. As the key block of the wireless communication transmitter in rf, it is very useful in improving the output power and efficiency, lowering the loss of the supply, lowering the size and the weight, lengthening the time of communication. class e power amplifier which is suitable to amplify envelop signal is very important in modern communication system

    功率放大器（ pa ）作為無線通信射頻發射機中不可缺少的關鍵電路，對于提高手機的功率效率、降低電源損耗、減小體積重量、延長通話時間有著舉足輕重的作用，而適用於恆包絡信號放大的e類功率放大器，更是在現代通信系統中佔有十分重要的地位。
  2. Basing on other researchers ’ work, this paper has put forward a novel type of icc ( induced current cancellation ) shielding layer for rfic / mmic performance improvement, to reduce high frequency loss, increase q value, and expand its application frequency range. and present how to realize rfic / mmic components such as i / o pad, inductors, baluns and so on by applying icc shielding layer structures. furthermore co - design methods of ic component structure and foundry process structure designs has been presented in this thesis

    在無線通信技術對cmos射頻/微波集成電路需求的大背景下，本論文提出了用於高頻集成電路（ rfic / mmic ）器件的各類新型icc （ inducedcurrentcancellation ，感應電流相消）屏蔽工藝結構，由此設計製造的ic部件解決了傳統半導體工藝無法實現射頻/微波集成電路的難題，以達到降低高頻集成電路器件的高頻損耗，提高器件q值以及擴寬器件應用頻帶的目的。
  3. Wireless induction communication method is based on electromagnetic induction principle, using the electromagnetic coupling to transmit data between the train and ground. this communication system can cover a long rail and it is easy to maintain and fix

    無線感應通信是基於電磁感應原理，利用電磁耦合完成車輛與地面雙向數據傳輸的一種通信方式，具有傳輸損耗小、覆蓋線路長、架設方便、易於維護等優點。
  4. In order to utilize the frquency resource adequately and increase the capacity of mobile communication system, the wireless electric wave propagation of existing mobile system always adopts the microcell structure. forecasting the path loss characteristic of electric wave accurately can provide the necessary condition for the layout and design of wireless network, at the same time it is a precondition for the research on the microcell mobile system. the methods of forecasting of wireless electric wave propagation can divide into two parts : one is pluse and respond, that is establish the empirical model based on experimental and statistical data ; the other is ray tracing method, that is establish the deterministic model based on theoretical analyse. the paper discuss the characteristic of wireless signal electric wave transmition in symmetrical atmosphere of earth, and introduce the common path loss transmition model in land mobile communication system, also point out the localization of these models based on experiential methods

    而精確預測無線電波傳播路徑損耗特性，則為合理的微蜂窩無線網路規劃、設計提供了必要條件，同時也是研究微蜂窩移動通信系統性能的前提。無線電波傳播預測的方法分為兩類：一是用沖激響應法，即根據實驗、統計所得數據建立經驗性傳播預測模型；另一種是用射線跟蹤方法，即依據理論分析來建立確定性的傳播預測模型。本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。
  5. Accordingly ray tracing model for microcells propagation prediction has become an important subject. this paper discussed the characteristic of propagation in symmetrical atmosphere on the earth, and introduced several kinds of traditional path loss propagation model in land mobile communication system, also pointed out the localization of these models based on experiential methods

    本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。
  6. It is built using graphical technology of geographic information system and can be used as the graphical plate for power system software, making the operation and the management of the devices easy and intuitionist, and the analysis of network topology more automatic and accurate. in the aspect of the calculation of loss, this system calculates the loss of the active power and reactive power, forms the result in the database considering the differences of load - curves at every node, and allows the property or queries loss of the devices using graphic interface

    它以地理信息系統（ gis ）的圖形化技術為基礎，為電力系統軟體架設圖形化平臺，使設備的操作、管理更加直觀，使電力系統的網路拓撲分析程序更加自動化、準確；在線損計算方面，考慮了各負荷節點負荷曲線的不同，可以從計算結果中分別統計有功損耗和無功損耗，也可以方便的在配網圖上對各種元件進行屬性查詢，損耗查詢等。
  7. For the algorithm of reactive power optimization, presented in this paper, in order to found the linear programming model equations, the objective function is minimum total power losses, the controlled variables include the compensating capacity of reactive power, generator bus voltages and transformer tap positions, the state variables include reactive power of the generators, and the voltage amplitudes in the ends of transformers

    本文研究的電力系統無功優化演算法是以整個網路的損耗最小為目標函數，以無功補償設備出力、發電機端電壓和可調變壓器變比為控制變量，以發電機的無功出力和變壓器端電壓幅值為狀態變量建立了線性規劃模型方程。
  8. On the condinary, much reactive capacity loaded would be bad, and net ' s voltage would be higher and its security would be influenced. with the needs of reducing line loss, to study the method of compensating reactive capacity has been an important task in power department

    同理，如果就地投入補償過大，多餘的無功就要通過輸配電線路向其他設備或區域輸送，也會造成無功和有功損耗，使得用戶的電壓偏高，影響到電力網的安全經濟運行。
  9. Because it is a long time before the hybrid method getting the field, one can use the artificial net work ' s character of learning by itself, and get the law of the path loss. consequently, it become easier to study the wireless electrical wave ' s propagation characters

    利用混合法計算場，比較耗時，可以運用人工神經網路的自學習功能，就能很快得出路徑損耗規律，從而更加方便對室內的無線電波傳播特性進行研究。
  10. The electric power harmonic comprehensive control system with low cast and high security is applied in this article. it adopts that sourced compensation links with non - sourced compensation herewhich the former is realized by high frequency pwm control technology and the latter is carried out by crystal switch formed by non - flow and over - voltage. it can realize stepless modulation with imaginary power, mightiness compensation of harmonic and negative electricity, and circuitry consumption debasing are achieved

    提出採用有源補償與無源補償相結合的電力諧波綜合治理技術及裝置，無源部分採用無涌流和過電壓的晶閘管控制電容器技術實現，有源部分採用高頻pwm控制技術實現，成本低、可靠性高、可實現無功功率的無級調節、強力補償諧波電流和負序電流，降低線路損耗。
  11. As a planar structure, microstrip fit for hybrid integrity, but their disadvantages also exist : the dissipation loss caused by conductor, radiation, and dielectric, therefore, they are not suitable to be used in millimeter wave applications and couldn ’ t compose high q passive components

    微帶線作為一種平面電路結構，適合於系統的混合集成，但是這種結構也存在一定的缺陷，由於導體損耗、輻射損耗和介質損耗的存在，使得它不適于工作在毫米波波段，也無法構成高q值的部件。
  12. On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully

    高壓斷路器所造成的事故無論是在次數，還是在事故所造成的停電時間上都占據總量60以上。因此，及時了解斷路器的工作狀態對提高供電可靠性有決定性意義；並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法；提出了二次迴路保護器的概念，並將跳、合閘線圈完整性監視和二次迴路保護結合起來，給出具有完整性監視功能的二次迴路保護器實現方案；根據斷路器生產廠家提供的斷路器額定短路電流分斷次數，計算每次分閘對應的觸頭電壽命損耗，預測觸頭電壽命；提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法，並根據此時的負荷電流間接計算主觸頭迴路的電阻；在硬體電路設計上，採用美國ti公司最新推出的一種功能強大的單片機msp430 ，並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題；在通信模塊的設計中，解決了不同工作電壓晶元之間的介面問題，並給出了直接聯接的接線方案。
  13. 25 zhang b, shirazi m n. implementation of explicit wireless loss notification using mac - layer information. in proc. ieee wireless communications and networking conference, vol. 2, new orleans, usa, march 2003, pp. 1339 - 1343

    1易損耗的無線通道導致了高比特誤碼率，從而引發數據包錯誤甚至無法恢復，發送端就誤認為網路擁塞，導致頻繁進入慢啟動，造成tcp性能下降。
  14. So the emergence of facts is just for the purpose of solving these problems of power system. as a branch of facts, active power filter ( apf ), a new power and electric equipment, its function is to eliminate load harmonic and compensate system line reactive power, damp system surge of node voltage, decrease power waste of system line

    作為facts的一個重要分支- - - -有源濾波器（ apf ） ，是為了解決系統線路無功功率因數過低以及負載線路諧波過多，從而出現線路損耗大、電源電壓的瞬態波動過陡等一系列相關問題而產生的一種新型電力電子裝置。
  15. The main ideas of the thesis and the contributions to the resonant dc - link area are also listed in this chapter. a novel control strategy for the two - amplitude actively clamped resonant dc - link is proposed in chapter ii. it neglects the bus short circuit time adjuster and stabilizes the clamping voltage by a pi regulator so that the obtained link frequency is improved and the link losses are greatly reduced

    第二章針對雙幅控制技術在單相橋式電壓源逆變器中的應用為範例進行研究，提出了直流母線無短路控制和通過pi調節環穩定箝位電壓的雙幅諧振控制策略，進一步提高了母線振蕩頻率，減少了直流環節損耗。
  16. 16 hanbali a a, altman e, nain p. a survey of tcp over mobile ad hoc networks. available at http : www. inria. fr rrrt rr - 5182. html, may 2004. 17 jain s, lv y, das s r. exploiting path diversity in the link layer in wireless ad hoc networks

    我們指出，這些非擁塞因素包括易損耗的無線通道mac層中的過度競爭和不公平接入節點移動脆弱的路由協議不適合的擁塞窗口不對稱路徑。
  17. In particular, the bridge tap at the receiving side will make some sub - channels unusable. to that end, bridge taps on adsl lines must be examined and removed as much as possible. most importantly, there should be no bridge tap of any form at the receiving side

    第四，線路的橋接抽頭將顯著地改變線路插入損耗的頻響特性和相頻特性，特別是接收端附近的橋接抽頭將導致某些子通道無法使用，所以在使用adsl時，一定要檢測線路上的橋接抽頭，並盡可能地去除橋接抽頭。
  18. Even though most losses in wireless networks stem from factors like signal fading, interference, and link blackouts, tcp assumes the losses to be related to congestion, so it kicks in algorithms that slow down network traffic

    盡管無線網路中的大多數損耗來自信號衰退、干擾以及連接中斷等因素，但是tcp假定這些損耗與擁塞有關，因此它摒棄了降低網路流量的演算法。
  19. The work of lineloss analysis involves much work which includes lineloss computation, network alteration, running style and administration, however some content has no model to reference, and existing analysis has much controversy. so how to proceed the efficient analysis of loss awaits research. with the development of technology in computer, advanced softwares such as maplnfo, gis and so on have applied into the electric power

    線損分析工作是一項涉及面很寬的工作，它與線損計算、網路補償、網路改造、運行方式以及線損管理工作緊密聯系在一起，有些分析內容尚無成熟的模式可以借鑒，對已有的分析方法也存在著不少的爭論，因此，如何實現有效的損耗分析還有待于進一步地研究。
  20. Tal series high exchange filter installation, 6 - 35kv exchange mainly for electricity grid, as scheduled filter out the high harmonics currents, reducing grid voltage sinusoidal wave distortions rate, while providing compatibility for mouttalos no credit, improve the power factor lines, lowering the depletion, save energy, clean grid

    的電力交流電網中，作為濾除預定的高次諧波電流，降低電網電壓正弦波畸變率，同時為基波提供容性無功提高線路的功率因數達到降低損耗節約電能凈化電網的目的。
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