線路時差 的英文怎麼說

中文拼音 [xiànlùshíchā]
線路時差 英文
path float
  • 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...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
  • 時差 : 1 [天文學]（平太陽時和真太陽時的差）equation of time2 （不同時區之間的時間差別）time difference時...
  1. The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection. prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation, put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years, avoid ct saturation district, can judge the bus bar trouble correctly

    但是在母線區外發生短路故障（特別是故障電流含有大量非周期分量）時， ct會出現飽和現象， ct飽和后，不能正確地傳變一次側電流，從而使二次電流發生嚴重畸變，產生很大的差電流，這樣就容易引起誤動作。防止ct飽和時差動保護誤動作一直是母線保護的一個重要課題，近年來提出的在ct二次電流過零時的線性傳變區投入差動保護，避開ct飽和區，能對母線故障做出正確判斷。
  2. Abstract : a new clock - driven eco placement algorithm is presented for standard - cell layout design based on the table - lookup delay model. it considers useful clock skew information in the placement stage. it also modifies the positions of cells locally to make better preparation for the clock routing. experimental results show that with little influence to other circuit performance, the algorithm can improve permissible skew range distribution evidently

    文摘:提出了一種新的時鐘性能驅動的增量式布局演算法，它針對目前工業界較為流行的標準單元布局，應用查找表模型來計算延遲.由於在布局階段較早地考慮到時鐘信息，可以通過調整單元位置，更有利於后續的有用偏差時鐘布線和偏差優化問題.來自於工業界的測試用例結果表明，該演算法可以有效地改善合理偏差范圍的分佈，而對電路的其它性能影響很小
  3. 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。
  4. Up to date, all general protection locks sold on the market use asic or eeprom as the hardware design circuit. due to their simple design and easy - to - crack, they are easy to be cracked, and their circuit design s stability is very bad. thus, it does not only protect your product invalidly, but also damage your product s image and increase the cost of technical maintenance service

    目前，一般市面上所銷售的保護鎖產品都是以asic或eeprom為硬體設計線路，由於其設計方法簡單，破解的方法容易，因此破解率極高同時該種線路設計之穩定性亦差，不僅無法有效保護貴公司的產品，同時更可能使貴公司的產品形象受損，並且增加技術維修服務的費用。
  5. Abstract : in this paper, the setting scheme of the current differential protection based on sampled values using fault component is investigated. the setting schemes of the resistance coefficient and the least trip differential current are discussed in detail. the probable protection setting values for the hv transmission lines are described. it testifies the feasibility for the applications of the protection to the hv transmission lines

    文摘:對基於故障分量的采樣值電流差動保護制動特性曲線的整定方法進行了研究，詳細討論了其制動系數和最小動作電流的整定方法，同時對該保護在輸電線路中的應用進行了初步的估算，說明了該保護的優異性能。
  6. Study on the locator system of travelling - wave caused by fault in power

    輸電線路故障行波時差定位系統的研究
  7. In order to overcome problems arisen from the application of x fluorescence analysis into complex spectrum produced by archaeological ceramic fragments with multi - element, low content and thick ground, we have employed the artificial neural network into the research of x fluorescence archaeology and conducted three kinds of research works. as the first one, we have applied the linear olam network ( optimal linear association memory network ) and the non - linear bp network ( back - propagation network ) respectively to analyze the complex x fluorescence spectrum of archaeological samples, and taken both results of spectrum analysis to compare with each other. the second, the method of pattern recognition of bp network was tentatively used to perform intelligent identification of production places of these archaeological samples

    針對科技考古中對大量考古陶片進行產地研究時x熒光分析對多元素、低含量、厚基底考古陶片產生的復雜譜分析的問題，將人工神經網路引入x熒光考古中，進行了三方面的研究工作：一是用線性olam網路（最優線性聯想網路）和非線性bp網路（誤差反傳導網路）分別對考古樣品的x熒光復雜譜進行解譜，並比較二者的解譜效果；二是用bp網路模式識別方法對考古樣品的產地進行智能識別；三是為了提高網路運算的可靠性和減小基體效應及電噪聲的干擾和影響，研究並提出了三種網路學習前的譜數據預處理方法。
  8. The devices have many merits. they can sensitively and reliably cut off all the faults occurring in the power system. even under the critical situation, faulting on the long heavy load transmission lines through high ground resistances, the criterion based on fault components still has considerable sensibility

    此裝置的優點是：能夠靈敏、可靠的切除電力系統發生的各種故障，尤其是基於故障分量的差動判據與傳統差動判據相比，在重載線路上發生各種故障，即使是高阻接地時，也具有很好的靈敏性。
  9. Meanwhile, this paper researched theoretical line losses, compared per - line results between theoretical and statistical line losses, and elementarily discussed the reason of difference

    本文同時開展了理論線損分析、分線路的理論線損與統計線損分析研究工作，對造成理論線損與統計線損差異的原因進行了初步探討。
  10. The simulation results in this thesis indicate that, its settling - time to full swing is 15ns with 3v supply, the total static power dissipation is less than 50mw, the differential nonlinearity error is 0. 58lsb, the integral nonlinearity error is 0. 54 lsb, spurious free dynamic range is more than 60db, and the output current can be adjusted

    本課題設計的數模轉換器性能指標為:工作電壓3v ，建立時間15ns ，微分非線性誤差0 . 58lsb ，積分非線性誤差0 . 54lsb ， sfdr高於60db ，總功耗不到50mw ，輸出電流可調。設計成果可應用於數據處理和控制系統電路中，具有一定的先進性和實用價值。
  11. With the rapid development of wireless communication technology and computer technology ， people wish to get reliable data communication service any time and any where. traditional network can not supply communication service if the whole network need to move because the network devices are fixed by wires and can not move. so, ad hoc network comes. it can provide mobile data communication service compared with traditional network. ad hoc is a network with plat structure and all the nodes is equal. all the nodes need provide relay. but not all the nodes will provide relay and the performance of plat structure is poor in large scale. so the wireless mobile self - organized network adopts a two - level structure by referencing the cell mobile communication system. wmsn uses wireless routers to construct network. it can provide wireless access, relay services to users

    考慮到不是所有的站點都願意提供中繼服務及平面結構的局限性（在網路規模較大時性能會很差） ，本課題的無線移動自組織網路參考了蜂窩移動通信系統的特點，是一種具有兩級結構的網路。使用專門的無線設備? ? 「無線路由器」構成具有用戶無線接入、無線組網和路由功能的無線互連網路，為移動用戶提供無線接入、路由和中繼服務。 ieee802 . 11b可以提供很高的通信速率，可以提供很好的接入性能，並且支持ieee802 . 11b協議的設備正成普及的態勢，因此成為我們所選擇的鏈路層協議。
  12. Because the distances from different onus to olt are different, the amplitudes and phases of the different signals will have significant difference when receiving the receive terminal

    由於不同的光網路單元onu與光線路終端olt的距離不同，實際工作時到達接收端的信號的幅度，相位都相差很大。
  13. In the last decade, there exist two active lines on the investigation of nonlinear time series. one is the autoregressive conditional heteroscedasticity ( arch ) model, the another is the nonstationary ( unit root ) time series model

    對非線性時間序列的研究，近幾十年來，有兩條研究路線非常活躍，其一是自回歸條件異方差（ arch ）模型，其二是非平穩（單位根）時間序列模型。
  14. And to the electric capacity type voltage mutual inductor, because it compares with electromagnetic type voltage mutual inductor, transient state its bad to respond characteristic, as circuit when making the short circuit two times trouble, the voltage two times delays dropping to zero while needing to pass certain one

    而對于電容式電壓互感器，由於它與電磁式電壓互感器相比，其瞬態響應特性比較差，當線路故障而使二次短路時，二次電壓需經過一定的時延後才能下降到零。
  15. The load distributed by central piles under vertical load are higher than by others of the pile group ; 2. under higher vertical load, the foundation soil shows an obvious characteristic of plastic strengthening ; 3. the bearing capacity of pile group under vertical load is larger than the whole sum of bearing capacity of single piles in pile group ; 4. the position of the maximum or zero value of bending moment inpiles, the line shape of bending moment diagram and the value of bending moment of the same cross section of a pile under same load is different according to the lateral loading and the longitudinal loading ; 5

    在較大的豎向荷載作用下，土體出現明顯的塑性強化特徵； 3在豎向荷載作用下，群樁的承載力大於各基樁承載力之和； 4沿線路水平縱、橫向加載時，最大彎矩和零彎矩的位置、彎矩變化曲線的形狀以及在相同荷載作用下各樁同一截面的彎矩值都有一定差異； 5
  16. Abstract : during treatment of a delayed schedule ， specific deliberation of calculation on claim for extension of time should be paid attention to the following tasks ； because the critical path of a network might be changed from time to time and the appropriate utilization of float should be carefully considered in the actral schedule ， therefore ， the claim for extension of time can not be calculated only by the network ， but the actual period where the cause of a delaed schedule is set should be considered ， and should be calculated on the basis of the actual schedule which is approved by the supervising engineer

    文摘:在工期延誤處理時，工期索賠計算應特別注意：由於網路的關鍵線路可能發生變化，且實際進度計劃要考慮時差的合理利用，因此工期索賠不能僅按網路圖計算，而要考慮工期延誤原因的實際發生時間，按經監理工程師批準的實際進度計劃計算。
  17. The extending techniques such as vector transform ， excitation inrush current, ta saturation and so on are analyzed, which resolves the question that the traditional optical differential protection can not satisfy the request of line - transformer unit

    同時對光纖差動保護運用於線路變壓器組時涉及的矢量變換、勵磁涌流、 ta飽和等延伸技術進行了分析，解決了傳統的線路光纖差動保護不能滿足線路變壓器組保護的要求。
  18. The logical architecture, protocol, the encoder algorithm, the decoder algorithm and the electronics specification of the tmds which is the core of the dvi and means transition minimized differential signal are described in particular in this paper. and the synchronization and data recovering which mean the central problem in the high speed serial data communications are also analyzed

    本文以dvi介面通訊協議為主線，詳細介紹和分析了作為介面核心內容的tmds ? ?最小變化差分信號的邏輯架構、通訊協議的編碼演算法、解碼演算法、 tmds信號的電氣規范等問題，並著重分析了作為高速串列通訊的關鍵問題的鏈路時鐘同步與數據恢復問題。
  19. With the input of a vibration acceleration history of subway train, a full dynamic analysis of soil - pile - structure is carried out. the propagation of vibration wave on the ground and vibration responses of the huge platform and the storied buildings are analyzed. some conclusions are drawn as follows : ( 1 ) with the increase of the distance to the vibration source, vibration intensity of the ground decreases ; ( 2 ) the vibration intensity of the ground in vertical direction is slightly larger than that in horizontal direction ; ( 3 ) with the increase of the distance to the vibration source, the situation that the vibration intensity of each building in horizontal direction is maximum at highest and lowest story whereas minimum at the middle story changes gradually to that decreasing with the height of building ; ( 4 ) in vertical direction, the vibration velocities and accelerations at the end points of each story of a building are the nominal identical, which indicates that the vertical vibration of them is unanimous ; ( 5 ) the vibration intensity in vertical direction of a building is larger than that in horizontal direction ; ( 6 ) increasing of the elasticity of track is an effective way to abate vibration of ground and buildings

    本文以北京地鐵八王墳車輛段地上超大結構（車輛段大平臺及其上的小區樓房）及其地基基礎為研究對象，在研究和分析有關資料的基礎上，用快速拉格朗日有限差分法軟體flac建立了二維數值分析模型，並以列車振動加速度時程作為模型輸入，進行了地基?樁基礎?地上結構的整體動力學分析，分析了地鐵列車運行產生的振動在地面的傳播規律及其對地上結構的影響，得到了如下結論： （ 1 ）隨著與地鐵線路距離的增大，地面的振動強度有減小的趨勢； （ 2 ）地面豎直方向的振動強度較之水平方向的略大； （ 3 ）隨著與振源距離的增大，在水平方向上，地上各幢樓房的振動強度由底層和頂層的最大、中間層的最小逐漸過渡到沿樓層增高而減小； （ 4 ）在豎直方向上，每幢樓各層端點的振動速度、加速度完全相同，表明樓房各層在豎直方向上的運動狀態一致； （ 5 ）各幢樓房豎直方向的振動強度比水平方向的大； （ 6 ）增加軌道彈性是減輕地面和地上建築振動的有效途徑。
  20. With the increase of the electric power system capacity as well as the short lines, high currents will possibly occur in the transmission line when a fault happens at the end of the line. the iron core of the current transformer ( ct ) will become saturated easily because of the large current, or when the secondary load of the ct does n ' t match the 10 % error curve

    隨著電力系統容量增大以及短線的增加，在電力系統線路末端發生短路時，有可能出現很大的短路電流；在很大短路電流的作用下，或由於電流互感器二次側負載與10誤差曲線不匹配等原因，電流互感器鐵芯很容易飽和。
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