速率調定 的英文怎麼說

中文拼音 [sùlǜdiàodìng]
速率調定 英文
speed setting
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 速率 : speed; rate; tempo
  1. At first, according to the concrete requirement of the servo control system, a collective scheme, which provide guarantee to meet the requirements of the global performance, is established. in this scheme, the structure of gimbal and the torque motor driven mode are adopted, and angle measurement is accomplished by inductosyn and velocity measurement is accomplished by dynamically tuned gyro respectively

    首先，根據目標真值測量設備伺服系統的具體要求，確定了地平式常平架結構，力矩電機驅動，分別採用動力調諧式速率陀螺儀及圓盤式感應同步器作為速率及位置反饋元件這一總體方案，為伺服系統滿足整體性能指標要求提供了保證。
  2. In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage

    我們對兩種正交調制方式（ 16qam和4 - qpsk ）進行了模擬工作並給出了模擬結果，同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試；然後在基於軟體無線電思想的數字處理平臺（該數字處理平臺實現了中頻數字化）上用dsp軟體完成了載波的相位跟蹤。
  3. Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas

    與基本bp演算法相比，本文提出的魯棒自適應bp演算法具有以下優點： （ 1 ）與魯棒統計技術相結合，通過訓練樣本相對偏差的大小，確定不同訓練樣本對能量函數的貢獻，來抑制含高噪聲干擾樣本對網路訓練的不良影響，從而增強訓練的魯棒性，提高網路訓練的收斂速度； （ 2 ）採用相對偏差和絕對偏差兩種偏差形式對權值進行調整，提高了網路的訓練精度； （ 3 ）在採用梯度下降演算法對權值進行調整的基礎上，通過將學習速率設為訓練誤差及誤差梯度的特殊函數，使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變，從而可以克服基本bp演算法容易陷入局部極小區域的弊端，使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。
  4. In this paper, several scheme of vscf is compared firstly, of which gets doubly - fed generating mode. doubly - fed vscf wind power generating system uses a doubly - fed induction generator, which rotate speed can be able to change with wind turbine, and it ensures a constant - frequency output, by controlling the frequency of current input into rotor windings. in vector trans control system, the control of stator active power and the control of stator reactive power can be essentially decoupled, and the former is via torque component and the latter is via exciting component of stator current

    本文首先比較了幾種變速恆頻方案，從中選擇了雙饋式變速恆頻方案；它運用雙饋電機的工作原理，允許發電機轉速變化，而在電機轉子側接入低頻勵磁電流，通過控制該電流的頻率，保證雙饋電機定子輸出的頻率恆定；再結合矢量控制技術，通過調節轉子電流來控制定子電流的轉矩分量和勵磁分量，相應獨立地控制發電機輸出的有功功率和無功功率。
  5. Aimed at design index of input power 1. 5kw, most output rotate velocity 300rpm, and rating output rotate velocity 150rpm, considering factors of angle and ratio of transmission, on the basis of kinematics simulation, author optimized the kinematics parameters. in this paper, author has made some analysis and study to the primal assembly condition of transformer ' s sequential action in theory, designed structure dimension of the input and output transformer, and verified the corresponding strengthen. further, the structure, which is to key transmission components of velocity control system of the speed regulator, has been designed based on meeting operational sensitivity, precision and self - locking

    本文針對輸入功率為1 . 5kw ，最大輸出轉速，額定輸出轉速的無級變速器的設計要求，並考慮到傳動角及變速比等因素，在運動學模擬的基礎上，對運動學參數進行了優化；本文對變換器連續作用的初始裝配條件進行了理論分析與研究，對輸入、輸出變換器作了結構尺寸的設計，並進行了強度校核計算；本文還對變速器調速系統中主要傳動構件在滿足操作的靈敏度、精度、自鎖性的基礎上進行了結構設計；最後採用workingmodel3d軟體，進行虛擬樣機的計算機輔助模擬設計及運動學和動力學計算。
  6. The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation

    本文以騰格里沙漠東南緣寧夏中衛縣沙坡頭地區人工固沙植被作為研究對象，採用傳統生態學的野外調查方法，從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境（土壤含水量、溫度）相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化，取得了如下研究結果： 1 、植被群落組成、多樣性及生活型：沙坡頭地區人工植被經過近50年的演變，從流動沙丘到固定沙地，沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變，從人工植被建立初期的少數幾種引種植物到現有30多種植物，隨著固定沙地時間的延長，植物種類日趨豐富，並且人工植被在15 25年、 40 50年兩個階段，物種的周轉速率最大，即群落結構變化最大。
  7. Quantum capture is a complicated process and capture time computation and experiment test are provided. it is difficult to ascertain carrier ' s transportation and distribution in multiply quantum wels and tunneling time and heating emitting time computations are also provided. optical gain whose formula is complicated is a critical parameter and it is useful for structuring model to obtain a concise formula by means of experiment curve

    詳細說明了確定半導體激光器速率方程的一些重要參量的方法，如：載流子在三維sch區的輸運行為對激光器的調制特性有較大影響；量子阱對載流子的捕獲是一個復雜的過程，文中給出了量子捕獲時間的計算方法以及實驗證明；多量子阱中載流子輸運與分佈也是相當復雜的問題，文中給出了隧穿時間與熱發射時間的計算方法；光增益是關鍵的參量，它的解析式相當繁瑣，由實驗曲線擬合其較為簡明的經驗式，對定模工作是有利的。
  8. Transitional feature of the arc and metal droplet in the welding process with steam shielded arc is investigated by means of analysing the waveforms of welding voltage and current under different welding regimes and it is found that there are two types of arc process behavor ? " arc starting - arc blowing out - short - circuiting " and " arc - starting - short - circuiting ". under the condition of constant diameter of welding wire and its feeding speed, the arc process behavor can be changed by adjusting the inductance of welding circuit as well as the voltage of power supply. if arc process behaves as alternative process of " arc starting - arc blowing out - short - circuiting " with minimum time duration of arc blowing out and maximum frequency of short - circuit transition, the welding process will be stable with less spatter and smooth weld bead

    通過分析不同焊接規范下的焊接電壓和電流的波形.研究了水蒸氣保護下電弧及熔滴過渡的特點，發現其電弧過程行為有「燃弧?熄弧?短路」和「燃弧?短路」兩種形式.在焊絲直徑和送絲速度一定的情況下，通過調節焊接迴路中的電感量和電源電壓，可以改變電弧的過程行為形式.若電弧過程呈「燃弧?熄弧?短路」交替進行，並且熄弧時間最短時，短路過渡頻率最高，在這種情況下，飛濺小，焊道成型好，焊接過程穩定
  9. 2. members further noted that the convertibility rate in respect of the aggregate balance began to move by 1 pip per calendar day with effect from 1 april 1999 in order to gradually bring the rate, originally at 7. 75, in line with that applicable to certificates of indebtedness which was fixed at 7. 80

    委員會也獲悉，適用於總結餘兌換保證的匯率已於1999年4月1日起按每個公歷日1點子的速度調整，以使原來定於7 . 75的匯率逐漸步向與負債證明書兌換匯率7 . 80一致的水平。
  10. In cultured neonatal rat cardiac myocytes, mtt methods, total protein measurement and 3h - leucine incorporation were used to evaluate the cell number and protein synthesis of cardiac myocytes

    脯氨酸摻入實驗測定膠原合成速率，放免法測定細胞內cgmp和。 amp ，定量pcr技術研究vnp對cfs的npr c的調控。
  11. Thermal stress control system actually gather the real - time data of unit sets ， compute temperature fields ， stress fields and maximum dangerous stress by the math modal ， decide target and speedup rotation in every stage of startup process ， and justify automatically to realize auto control a serial of processes of turbine ， such as speedup ， warm - up ， connecting net ， load changing ， stop and unsteady condition etc ， and improve automatic level of the unit sets. turbine auto startup ( tas ) system can automatically evaluate steam turbine ' s startup and load changing process according to thermal stress of

    熱應力控制系統實際是對機組運行參數進行實時採集與監控，通過數學模型實時地計算高、中壓缸轉子的溫度場、應力場分佈，以及最危險熱應力，以確定啟動過程各階段的目標轉數及升速率，並進行自動調整，實現機組沖轉、升速、暖機、並網、升負荷、停機以及異常工況下的自動控制，大大提高了機組的自動化水平。
  12. The outcome shows that such digital electronic speed governor is in possession of stable timing rate of 1. 0 % and instantaneous timing rate of 6. 2 %. and it is worth a wide popularization for its simple structure and low cost

    在對hondagx31汽油機進行了大量試驗后結果表明：在標定轉速6000r min時，該電子調速器可以達到1 . 0的穩態調速率和6 . 2的瞬態調整率，優于國家標準的要求。
  13. The system uses the popular double - deck controlling, namely the host communicates online with plc, at the same time it communicates with other stations by tcp / ip protocol. the electrodes regulate timely, quickly and true, with controlling three - phase voltage and current, so that power is stable comparatively

    本系統合理控制三相電流、三相功率的大小，從而電極能夠實時、快速、準確地按照冶煉工藝要求進行調節，使電弧功率穩定在一定的范圍內，獲得期望的控制效果。
  14. It also builds the mathematic model of all section of vscf ac exited wind power generation system on a - b - b and d - q coordinate system by the coordinate commutation technology. the thesis gives the characteristics of torque, active power, reactive power and the steady - state analysis of it. it proves that the capability of wind generator is determined to slip, the amplitude and phase of rotor voltage, the phase dispatch between stator voltage and rotor voltage

    並分析了交流勵磁風力發電機作變速恆頻運行時的工作原理，闡述了與同步發電機、異步發電機的不同之處，分析了其能量平衡關系，在坐標變換技術的幫助下，詳細推導了交流勵磁發電機在a - b - c坐標系和d - q坐標系下的數學模型，分析並模擬了其有功和無功特性、轉矩和功率調節特性、穩態運行和機械特性，證明了發電機的性能由轉差率、轉子電壓的相位和幅值、定轉子電壓相位差所決定的。
  15. Terrestrial plants are classified into three major photosynthetic types, namely, c3, c4 and crassulacean acid metabolism ( cam ) plants, according to the mechanism of their photosynthetic carbon assimilation. c4 plants have co2 concentrating mechanism and higher photosynthetic efficiency than c3 plants, especially under high light intensity, high temperature, high oxygen partial pressure and drought conditions

    本研究利用c _ 3植物、 c _ 4植物、旱稻與稗草等的雜交後代的材料，進行光合速率的測定，進一步分析植株在光能吸收傳遞、氣孔調節、羧化反應等生理特性，研究高光效的生理機制。
  16. The technology of trellis coded modulation ( tcm ) and viterbi decoding which could achieve high transmitting rate at a low bit ' error rate are demonstrated in detail. and then the design and achievement of itu - t v. 32 modem that based on one - dimensional tcm are expatiated. the paper also discusses the multi - dimensional tcm the itu - t v. 34 modem that based on it and tcm ' s application in the carrier communication

    文中深入研究了可保證一定誤碼率的情況下能實現較高傳輸速率的網格編碼調制（ tcm ）技術和維特比譯碼技術，闡述了基於單維網格編碼調制的itu - tv . 32modem的設計和實現，討論了多維網格編碼調制技術和基於其的itu - tv . 34modem ，並對網格編碼調制在載波通信中的應用作了簡單介紹。
  17. In the speed control system, because of the system ’ s low speed and high precision, incremental pid control algorithm is adopted. in the position control system, a dual mode control algorithm is designed, which can not only guarantee the rapidity in the position control, but also realize the small overshoot accurate positioning

    在控制系統的設計中，針對本系統轉速低、精度高的特點，在速率控制系統中，採用增量式pid演算法;在位置控制系統中，設計了雙模控制器，以保證系統定位過程的快速性和小超調精確定位。
  18. To delivery continues multimedia data in network, we use buffering, adaptive rate control and retransmitting to do with the latency and jitter of network transmitting

    為了保證多媒體數據在網路上傳輸的連續性，我們使用了一定的緩沖、動態速率調整、重傳等技術以克服當前internet網路傳輸的延遲、抖動等帶來的不利因素。
  19. The features of the dynamic bit rate allocation model are listed below : 1. the existed dynamic bit rate allocation algorithms that only involved the situations of data loss ca n ' t meets the requirement of the videoconference system

    作者的動態位速率調整模塊具有以下特點： 1 ）已有的動態速率調整演算法只考慮了發生loss時進行速率調整，在一定程度上不能滿足視頻會議系統的實際需要。
  20. The system makes up of two parts : subordinate part is the measure instrument, it also is principal part ' s data collection equipment, it makes use of microcontroller ' s advantage, it intelligentizes the management and data collection circuit, it has liquid crystal display and 4x4 keyboard, it can work alone on the field, so it is very convenient and ensures the credibility of data sampling ; principal part is virtual instrument software on personal computer, the software can be installed in notebook pc and work with subordinate part on the field, it extends the subordinate part ' s function, the teachers also can use it as demo teaching

    系統的設計借鑒了主從式虛擬儀器設計的思想，系統由主機和從機兩部分組成：從機部分即為光合、蒸騰速率測定儀，也是主機的數據採集器，它利用單片機功能全面的優勢，使調理電路和數據採集電路智能化，它配備lcd顯示器和4 4鍵盤，可以獨立野外測量，從而使虛擬儀器在保證數據采樣可靠的前提下，更加方便實用；主機就是pc機的虛擬儀器軟體，既可以安裝在筆記本電腦上，與從機組成便攜式儀器系統進行實地測量、處理數據，擴展從機功能，又可以作教學演示。
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