asynchronous performance 中文意思是什麼

asynchronous performance 解釋
異步性能
  • asynchronous : adj. 1. 時間不一致的，不同時的。2. 【電學】異步的。
  • performance : n. 1. 執行，實行，履行；完成；實現；償還。2. 行為，動作，行動；工作。3. 性能；特性。4. 功績；成績。5. 演奏；彈奏；演出；（馴獸等的）表演；把戲。6. 【物理學】演績。
  1. Fsmail adopts and implements the asynchronous event driven mechanism, with all those network i / o operations in the server working under the non - blocking style ; accomplishes object - oriented heap with the dynamic array, adapted to any type of data ; adopts the multi - queue scheduling mechanism based on a fsm, easily to fulfill the extentions of delivery funtions ; fulfills the non - blocking domain name resolvement mechanism and the caching of the resolved results ; implements the non - blocking user database management and the caching of the user data recently accessed ; uses the unified memory pool management, avoiding the memory leakage and improving the performance of the fsmail server ; lastly, implements the log management server based on the c / s mode, eliminating the inconsistency of the logging metadata and being adapted to any kind of application logging

    Fsmail採用並實現了異步事件驅動機制，所有網路i o的實現使用了非阻塞方式；以動態數組實現了基於面向對象的堆隊列，屏蔽了堆數據的非一致性；使用了基於有限狀態機的多隊列郵件調度機制，為后續版本的擴展性提供了良好的介面機制；服務器內部實現了非阻塞的域名解析機制，並實現域名地址緩存；實現了非阻塞的用戶數據庫管理模塊，並實現用戶數據緩存；使用了統一的內存池管理機制，既防止了內存泄漏，又提高了服務器的性能；最後，還實現了基於c s模式的日誌管理服務器，屏蔽了日誌數據元的非一致性。
  2. In sql server 2005, the auto close process is asynchronous ; repeatedly opening and closing the database no longer reduces performance

    在sql server 2005中， auto _ close進程為異步進程；反復打開和關閉數據庫不會降低性能。
  3. In chapter 5 we discuss the design of ieee754 standard fpu ( floating point unit ). processor and uart ( universal asynchronous receiver transmitter ), these cores are used in this dissertation, fpu is used for floating point complex fft processor, uart is used for fft processor " s peripheral and our test platform. in chapter 6 we discuss the design for testability, including atpg, bist and jtag method, discuss the different verification and simulation strategy in soc scale facing to different modules, build up the test platform which is used to test high performance application specified digital signal processing processor. in chapter 7 we summarize the research results and creative points, and point out the further work need to do in the future

    第五章提出了基於ieee754浮點標準的浮點運算處理器的設計和異步串列通信核的設一浙江大學博士學位論文計，提出了適合硬體實現的浮點乘除法、加減運算的結構，浮點運算處理器主要用於高速fft浮點處理功能，異步串列通信核主要用於pft處理器ip核的外圍擴展模塊以及本文所做的驗證測試平臺中的數據介面部分第六章提出了面向系統級晶元的可測試性設計包括了基於掃描測試atpg 、內建自測試bist 、邊界掃描測試jtag設計，在討論可測試性設計策略選擇的問題上，提出了針對不同模塊進行的分別測試策略，提出了層次化jtag測試方法和掃描總線法，提出了基於fpga
  4. Electronic soft starter is a kind of novel motor control device which can implement the soft - start, soft - stop and energy - saving of the asynchronous motor. compare in the traditional motor starter, it has outstanding advantages such as stepless regulation of the motor start, avoid the inrush of the torque and the current, and reliable protections, convenient operation and starting repetitively. so the paper aim at electronic soft starter, asynchronous soft starter of electrical machinery electron as research object, study it ' s high - performance soft starting technology - torque control soft - start, develop its realization circuit

    異步電動機電子軟起動器是一種集電機軟起動、軟停機、輕載節能和多種保護功能於一體的新穎電機控制裝置，相比于傳統的起動器，它突出的優點體現在能夠連續無級的調節電機起動、沖擊轉矩和沖擊電流小、控制簡便、起動重復性好以及體積小等方面，本文以異步電機電子軟起動器為研究對象，研究高性能的電機軟起動技術- - -轉矩起動方式，並研製其實現電路。
  5. After we apply the design scheme of this paper to a three - phase asynchronous motor, the simulating experiment result indicates that the digital control system realizes the motor ' s stable running and fast response during the start - up and unexpected change in load ; moreover, it realizes the good dynamical performance

    將本文的設計方案應用到一臺實驗用三相異步電動機上，模擬實驗結果表明本文所設計的基於tms320f240dsp晶元的數字控制系統能夠控制電機穩定運行，啟動及負載突變時反應迅速，被試電機動態性能良好。
  6. Therefore, this thesis presents a new asynchronous messaging model based on distributed object, and discusses the basic communication problems in the model, which includes asynchronous invoke, store - forward, object migration, message multicast, etc. base on this model, the thesis also studies some advanced technology problem such as message routing, reliable delivery, performance guarantee, etc, which will be met in constructing complex distributed system

    為此，本文提出一種新型的基於分佈對象的異步消息模型，並重點論述了該模型所提供的異步調用、存儲-轉發、對象遷移、消息組播等基本通信問題。基於該模型，本文還研究了構建復雜分散式系統時所面臨的消息尋徑、消息可靠傳遞、性能保障等高級技術問題。
  7. The scheme is based on the asynchronous teaching and individualized learning model in internet. the system is loaded into ‘ the information system of educational administration ’ and tested. in the end the overall and security performance of the system and the prospect is analyzed deeply

    本文採用基於internet網異步講授和個別化學習模式的實現方案，設計了一種基於web的遠程教育系統，並載入了「湘潭大學教務管理系統」做了測試，最後對系統的整體性能、安全性能以及研究的前景情況進行了深入地研究和分析，給出了系統運行的情況和性能分析結果。
  8. With the development of new power electronic component and computer technology, high performance asynchronous motor system has been applied extensively

    隨著新型電力電子器件的不斷涌現和計算機技術的不斷發展，高性能的異步電動機調速系統得到了廣泛的應用。
  9. Clp ( cell loss probability ) is another main factor in network performance. a method of estimating the clp in an atm ( asynchronous transfer mode ) multiplexer which is fed by a self - similar arrival process is advanced in this paper

    丟失率clp （ celllossprobability ）是網路性能分析中的另一個重要指標，本文給出了一種輸入是自相似過程的atm （ asynchronoustransfermode ）復用器中估計丟失率的方法，這種方法基於大偏差理論。
  10. Taking core loss into account has important effect to improve the torque performance of the motors " field oriented control. in this paper, the transient mathematical model of the asynchronous motor with core loss is setup. the method is proposed that minimizes the loss in a variable speed and torque at the synchronous rotating coordinate

    在對損耗分析的基礎上，建立了考慮鐵損時異步電機的動態數學模型，推導出在同步旋轉坐標系下變速、變轉矩時使電機功率損耗最小的方法，並且結合矢量變換提出了基於快速轉子磁場定向的矢量控制。
  11. Asynchronous database mirroring high - performance mode

    異步數據庫鏡像（高性能模式）
  12. A transient mathematical model of the asynchronous motor is built taking core loss into account to improve the torque performance. a method is proposed to minimize the total loss according to the relation between the efficiency and the rotor flux. a dtc system using this method appear high efficiency in matlab - simulation

    本文通過對電機損耗的分析，建立了考慮鐵損時異步電機的數學模型，推導出電機的損耗和轉子磁鏈的關系，通過坐標旋轉變換，得出損耗最小時的直接轉矩控制的定子磁鏈參考值。
  13. The mc controlled by this strategy not only achieves the dtc of asynchronous machine with excellent dynamic performance but also acquires good input currents and an adjustable power factor

    按這種策略進行控制的矩陣式變換器，既可實現對異步電機進行動態性能優良的直接轉矩控制，又可獲得良好的輸入電流波形以及可調的功率因數。
  14. Permanent magnet synchronous motors ( pmsm ) have high magnetic energy product. in the same volume, it can be smaller and lighter than asynchronous motor. in addition, it has stiff mechanical character and small rotor moment of inertia, so it is often used as servo motor under the condition of high torque response and high performance

    永磁同步電動機具有較高的磁能積，相同容量下可以做到比異步電動機體積更小、重量更輕，而且由於機械特性硬、轉子轉動慣量小，很適合作為伺服電機，用於高轉矩響應、高性能要求的場合。
  15. Mircea popescu, t. j. e. miller, malcolm mcgilp, giovanni strappazzon, nicolla trivillin, and roberto santarossa, asynchronous performance analysis of a single - phase capacitor - start, capacitor - run permanent magnet motor, 2005 ieee

    李新華，周克定.新型高效率的釹鐵硼單相同步電動機.湖北工學院學報.第14卷第1 、 2期
  16. The main characteristic of it is the combination of asynchronous communication model and multi - thread to improve performance. asynchronous communication model makes it possible that single - thread to some extent can provide the same performance as synchronous multi - thread, while avoids the shortcomings of multi - thread. this tradeoff can reach high performance with better throughput and scalability, especially in heavily situation

    它利用異步通信模型的異步性，使得在一些情況下僅使用單線程方法就可以在某種程度上達到同步多線程方法所具有的性能，從而克服了多線程給系統性能帶來的弊端，為實現系統高效并行提供了一種折衷的方法。
  17. The research of voltage and current mode pwm transducer has been greatly developed, these transducers were mainly used for asynchronous motor control. it has good vvvf performance and high efficiency

    電壓型和電流型pwm變頻器的研究已有了很大進展，這種變頻器主要用於異步電動機調速系統，它具有調速特性好、效率高等優點。
  18. A compact and high performance frequency inverter, telemecanique altivar 31 is designed for the control of 3 - phase asynchronous motors with power ratings from 0. 18 to 15 kw

    Altivar31變頻器te電器的altivar31是一種小型的高性能變頻器，它設計用於控制額定功率從0 . 18kw到15kw的三相異步電機。
  19. According to a real ac vf asynchronous dynomometer system, first step, the paper deducts the mathematic model of the system, and analyzes the system stability on the basis of the ? irst method ? of lyapunov stability, then draws the eigenvalues of the system under the situation of the variation of different parameters, and results in finding the changing regularity of the system stability caused by varitation of variant system parameter ; secondly, sets up a system simulation model in terms of a real power feedback ac vf asynchronous dynomometer system, and emulates different running states of the system, not only analyzes methods of adjusting parameters to improve the working performance in the field of weak flux of the system, but also proves the effectiveness of the methods via simulation ; at last, compares the simulation results of the model with the experiment results of the real system, and show the nearly correctness of simulation system, and also confirms the practical usage of the simulation system as an effectively assistant tool in the process of developing and design a real dynomometer system

    首先根據實際系統工作原理推導出系統的數學模型，在系統數學模型的基礎上依據李雅普諾夫穩定性判別第一法進行了系統穩定性分析，繪制了系統不同參數變化時的系統特徵值變化圖，從而得到系統部分參數變化對系統穩定性的影響規律，為實際系統的參數設計提供了參考；然後又以系統數學模型為基礎，依據實際的電封閉交流變頻異步測功機系統建立系統模擬模型，模擬不同工況下系統運行情況，分析了改善弱磁區系統性能的某些系統參數調節方法，通過模擬證明了此類方法的有效性；最後將系統模型與實際系統的實驗結果進行了比較，驗證了模擬系統模型的基本正確性，也肯定了這一模擬系統在實際測功機系統設計中作為輔助工具的實用性。
  20. Describes the performance advantages and basic operation of asynchronous i o

    描述異步i / o的性能優勢和基本操作。
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