differential transmission 中文意思是什麼

differential transmission 解釋
差動傳動
  • differential : adj 1 差別的，區別的；特定的。2 【數學】微分的。3 【物、機】差動的，差速的，差示的。n 1 （鐵路不...
  • transmission : n 遞送；傳遞；傳達；傳染；移轉；【機械工程】傳動；傳遞；變速器；聯動機件；【無線電】傳送；發射；...
  1. In this paper, research on the algorithm of complete digital if and baseband transmission system and the realization of transmitter and receiver. / 4 - dqpsk is chosen as digital modulation scheme. the scheme of demodulation is baseband differential detection. sliding correlator can realize the symbol synchronous acquisition ; early - late gate synchronizer is used to do symbol synchronous tracking

    系統的發射機選定/ 4 - dqpsk為調制方式，接收機採用基帶差分解調的非相干解調方式，滑動相關器捕獲發送的pn序列，早遲門同步器跟蹤符號同步，使用相關器對同步后的符號進行最佳判決，並在這些演算法實現的基礎上，實現了直接序列擴頻和解擴技術。
  2. Analysis has been carried out on the mechanics in a kind of new typed linear transmission of differential wheel based on synchronous cog belt

    摘要對一種新型的基於同步齒形帶的差動輪線性傳動中的力學進行了分析。
  3. This mechanism is a set of differential linear transmission mechanism consists of two differential pulleys, different in size and co - axially fixed together, engaged to the cog belt between driving and driven wheels of the traditional synchronous belt mechanism

    該機構是在傳統的同步帶機構的主、從動輪之間的齒形帶上嚙合一套由大小不同的兩個同軸固聯在一起的差動輪組成的差動線性傳動機構。
  4. The main characteristics and advantages are : on one hand, we adopted the low - complexity bussgang algorithm, and did blind estimation to ofdm sub - channel according to the mean square error criterion ( mse ) and peak distortion criterion ; on the other hand, we used the differential detection, which accelerates the convergence speed and avoid the error transmission problem resulted from the bussgang algorithm

    這兩種演算法一方面採用了低復雜度的bussgang自適應演算法，分別依據均方誤差準則和峰值失真準則對ofdm系統子通道進行盲估計；另一方面通過引入差分檢測技術，加快了演算法收斂速度，克服了bussgang演算法帶來的誤差傳播問題。
  5. Transmission systems conveys the drive to the wheels. the main components are clutch, gearbox, driveshaft, final drive, and differential

    底盤是汽車上主要操作系統組成的一個總成。底盤包括傳動系，懸掛，轉向，以及剎車系統。
  6. 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。
  7. 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。
  8. The thesis is focus on the research of the optical - fiber differential current protection that can adapt to the rapidly changing power grid. it mainly contains the following four parts : ( 1 ) theoretical analysis of some operation criterions and some factors that influence the operation of the differential protection. ( 2 ) simulation of a 500kv transmission line using emtp software

    其主要內容是： （ 1 ）對影響差動保護靈敏度的各種因素和不同的電流差動保護判據進行了理論分析； （ 2 ）用emtp模擬軟體對差動判據進行了數據模擬，並用matlab對輸出結果進行了詳細的可視化分析； （ 3 ）分析、比較了國內外縱差保護的數據采樣同步方法； （ 4 ）對判據進行了實際的編程實現和動模模擬。
  9. Considering the characteristics of shunt reactors, this paper proposes an accurate fault location algorithm based on differential sequence component network, which only uses the currents at two terminals of a transmission line

    採用基於反序網的雙端量演算法進行故障測距，並根據並聯電抗器的特點消除其影響。
  10. Xrd, transmission electron micrograph ( tem ) and polarized optical micrograph ( pom ) were used to measure the structure of nanocomposites, the nonisothermal crystallization kinetics of pp / pp - g - mah / org - mmt was studied by differential scanning calorimetry ( dsc ), and their mechanical properties were tested

    採用熔融插層法制備了聚丙烯接枝物蒙脫土納米復合材料，通過xrd 、 tem 、 pom和dsc研究了納米復合材料的結構及結晶動力學，並測試其力學性能。
  11. Polyethylene ( pe ) / pe - g - mah / org - mmt nanocomposites were prepared by melt intercalation. xrd, and transmission electron micrograph ( tem ) were used to measure the structure of nanocomposites, the nonisothermal crystallization kinetics of pp / pp - g - mah / org - mmt was studied by differential scanning calorimetry ( dsc ), and their mechanical properties were tested

    採用熔融插層法制備了聚乙烯接枝物蒙脫土納米復合材料，通過xrd 、 tem和dsc研究了pe pe - g - mah org - mmt納米復合材料的結構及結晶動力學，並測試其力學性能。
  12. Thirdly, this paper set up the diffusion model of innovation including variant latent consumers such as adopters, possible ones and unknown ones. then given the differential diffusion equation according to the study of the transmission of these three parts and discussed the stability of solution and controllability and measurability of this system. finally described the influence of the economy and government to the innovation diffusion

    再次，本文將創新產品的所有潛在採用者分為可能者、採用者以及未知者三類，並通過分析這三者之間的轉化關系，得出了這三類採用者隨時間變化的微分方程，並運用控制論的方法對方程進行了穩態分析和可控、可測性評價，分析了國家政策等外部因素對加速創新擴散的影響。
  13. This engine is equipped by vacuum membrane, double chambers. the engine has reverse device, oil - alarm, liming device and transmission differential. it is the special engine for tricycle and atv

    發動機內部設置倒檔裝置、機油報警器和傳動差速器，屬國內外首創「一體化」的三輪車和沙灘車專用發動機。
  14. Therefore if the closed planetary gear train and the differential plahetary gear train set up a multistage mixed gear train, we will obtain a winch on automobile crane which satisfy the request of double speed, great transmission ratio and small volume

    因此將差動和封閉行星輪系組成多級混合輪系，就可得到一種滿足汽車起重機上的卷揚機雙速、大傳動比、小體積要求的傳動機構。
  15. Telegraph equations, can be looked as cascade connection of two - port network of lumped circuit of transmission line, is a hyperbolic partial differential equations

    傳輸線可以看作集中參數二埠網路的級聯，其數學模型?電報方程是一階雙曲型偏微分方程組。
  16. Data synchronization for current differential protection based on optical fiber channel for ehv amp; uhv long transmission line

    特高壓長線路光纖縱差保護數據同步
  17. Data synchronization for current differential protection based on optical fiber channel for ehv amp; amp; uhv long transmission line

    特高壓長線路光纖縱差保護數據同步
  18. The composites with different compatibilizers and nano - sio2 content were characterized by means of mechanical testing, differential scanning calorimetry ( dsc ), x - ray diffraction ( xrd ), fourier transformation infra - red spectroscopy ( ft - ir ), transmission electron microscope ( tem ), scanning electron microscope ( sem ), etc. the relation between the structure and property of the composites was discussed in this thesis

    研究了不同增容劑、納米sio _ 2含量對復合材料的沖擊強度、拉伸強度等力學性能；並利用差熱掃描量熱分析（ dsc ） 、 x射線衍射譜（ xrd ） 、紅外吸收光譜（ ir ） 、掃描電鏡（ sem ）等分析，討論了復合材料結構與性能的關系。
  19. The assumption that the channel is known is questionable in a rapidly changing mobile environment, or when multiple transmitter antennas are employed. unitary space - time codes and differential unitary space - time codes do n ' t need any channel information. we discuss the unitary space - time codes briefly and study the details of the dustc, including the fundamental differential transmission and receiver equation, and parameters searching algorithm. the parameters searching and simulations results is proposed

    酉空時編碼及酉差分空時編碼（ dustc ）都不需要通道信息，著重研究了酉差分空時編碼技術，簡要說明了酉空時編碼的信號形式及星座設計方法;分析了dustc的發送和接收公式，分析了dustc的嚴格pep和sep的聯合界，給出了當snr值在不同的范圍時， dustc星座參數的選取準則，並進行了rayleigh衰落通道的模擬。
  20. An instrument that in a painless and noninvasive manner uses the differential transmission and reflection of ultrasonic waves to create a detailed visual image of the brain

    超聲波心動描記器一種用來顯示詳細的大腦圖象的儀器，利用超聲波發送和反射的差異來測試並無傷無痛
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