有效地常數 的英文怎麼說

中文拼音 [yǒuxiàodechángshǔ]
有效地常數 英文
effective ground constants
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 有效 : effective; valid; efficacious
  1. Initial growths of disturbances are measured by means of hot - wire anemometry. due to the detected signals with low signal to noise ratio, the coherence function is used to eliminate background noise during data reduction

    在擾動增長的初始階段，信號的信噪比非常地低，根據相關譜分析方法，應用相干函數，將擾動信號有效地提取出來，測量了初始擾動的增長。
  2. Intrusion detection can monitor and analyze the behavior of users and system, audit the system configuration and holes, assess the integrality of data and sensitive system, recognize attack action, stat and audit the abnormal behavior, collect the patch related with system automatically, and record the hacker ' s action uses honey pot. intrusion detection helps system administrator monitor, audit and assess the system state easily and available

    入侵檢測具有監視分析用戶和系統的行為、審計系統配置和漏洞、評估敏感系統和數據的完整性、識別攻擊行為、對異常行為進行統計和審計、自動地收集和系統相關的補丁、使用誘騙服務器記錄黑客行為等功能，使系統管理員可以較有效地監視、審計、評估自己的系統。
  3. But there is a main question that pvdf does not be in p phase with higher piezoelectric property, but be in other phases with lower or without piezoelectric property, thus, which can not improve distinctly piezoelectric constant d33, reduce notably dielectric spoilage ( tg5 ) and raise remarkably mechanical coupling factor ( kp ) of 0 - 3 pzt / pvdf piezoelectric composite, so these will restrict its development and application. in this paper, 0 - 3 pzt / pvdf piezoelectric composite will be prepared by room pressing - solidity, high - temperature - pressing and room - pressing techniques respectively

    由於這個壓電復合材料體系存在一個主要問題? pvdf在0 ? 3型pzt / pvdf壓電復合材料中通常不是以具有較強壓電性的相晶態形式呈現，多是以其它的相態存在，不能有效地提高0 ? 3型pzt / pvdf壓電復合材料的壓電常數d _ （ 33 ） 、降低介電損耗tg和增大機電耦合系數kp等壓電和介電性能，從而嚴重地制約它的發展和應用。
  4. On the basis of the characteristic of the industry waste slag, which is high added to the hsfab, different kinds of catalyzing methods are adopted to make the waste residue more active. the additive f, developed by the author can obviously improve the mechanics characteristic and durability of hsfab, especially the restraining of the drying shrinkage. based on the study of technics parameters and the problems in the manufacture, hf - 1100 series full - automatic hydraulic pressure wall brick presses is chosed to solve the problems, such as low molding pressure, low efficiency and the certified product ration

    在hsfab的研究方面，通過兩種體系hsfab （即「水泥?鋼渣?粉煤灰?爐渣」和「石灰?鋼渣?粉煤灰?爐渣」體系）的配方優化設計，使之具有良好的社會、經濟和環境效益；在高摻量工業廢渣的前提下，根據各種原料的特性，對其採用不同的活化技術，使其具有較高的活性；自研的外加劑f ，對hsfab製品的物理力學性能和耐久性能均有明顯的改善作用，尤其是對製品的乾燥收縮性能有顯著的抑制作用；通過對工藝參數的研究，結合實際生產普遍存在的問題，選取了hf - 1100系列全自動液壓墻體磚壓機，有效地解決了傳統制磚過程中常見的成型壓力低、生產效率低、產品合格率低（即「三低」現象）等問題。
  5. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  6. This paper describes an aag ( attributed adjacency garaph ) based method of machining features recognition for shaft kind parts and 2. 5d parts on the acis platform, which can effectively recognize the main and assistant feature of these kinds of parts. using the class library provided by acis, all the geometrical information for defining a feature can be acquired. finally a xml neutral file describing the recognition result is provided for the later capp process and the generation of nc code

    本文首先分析三維實體邊界模型的特徵識別方法及其特點，繼而採用基於屬性鄰接圖的特徵識別方法，研究了軸類零件及2 . 5維零件的加工特徵的分類及其識別，並在acis平臺上開發了相應的軟體原型系統，有效地識別該類零件的主特徵和常見的輔助特徵，且利用acis提供的類庫介面提取模型底層的幾何參數，得到定義各項特徵所需的幾何尺寸信息，最後以xml中性文件的形式輸出識別結果，為后續進行的工藝規劃、加工代碼生成提供初始數據，從而為cad / capp / cam的集成提供有效的方法。
  7. Speech communication is one of the most used modes in the digital trunking communication system. excellent algorithm of speech coding can save the bandwidth resource, improve the utilization of frequency, so it has important value for investigation

    語音通信是數字集群通信系統中最常用的通信方式之一，優良的語音編解碼演算法能夠更加有效地節省帶寬資源，提高頻率利用率，因此具有重要的研究價值。
  8. At same time, it has perfect exception handling mechanism and can find hardware, wireless link and tcp connection exception efficiently with the help of hardware watch dog. it can backup data during exception period by backup link and resending mechanism ; can make the whole system run continuously and stably by exception handling. thus, limited hardware resources are saved

    同時設備具有完善的異常監測機制，配合硬體看門狗能夠及時並有效地發現硬體異常、無線鏈路異常、 tcp連接故障;通過備份鏈路和重發機制，對發生異常期間的數據進行有效的備份;通過異常處理機制使整個系統能夠持續、穩定地運行，並節省了寶貴的系統硬體資源。
  9. In this thesis, we study and discuss deeply data preprocessing based on rough set. first, the characteristic and shortcoming of primary algorithms about the computation of null values is analysised, and principle and target of the completation is indicated

    而經典的粗集理論不能處理原始數據資料中的遺漏信息以及值域為實數的數據，需要經過數據預處理，包括數據補齊和離散化處理后才能進行知識獲取，因此如何有效地進行數據預處理具有非常重要的現實意義。
  10. It is necessary to obtain performance data correctly and effectively for well designing, managing and applying network. performance measurement technology is the only effective way to obtain performance data correctly and effectively. it obtained network ' s correct performance characteristics by measuring the available bandwidth, delay and lost of packets, and monitoring the congest and traffic fluctuation etc. it is the base of designing, managing and applying network and very important for them

    要設計、管理和利用好網路，必須要求有效地獲取性能特徵方面的準確數據，網路性能測試技術是準確而有效地獲取性能特徵的唯一手段，它通過對網路實際和有效帶寬、數據包的延遲和丟失等的測試以及對網路擁塞、數據的突發性等運行狀況的監測，獲得網路性能特徵的準確數據，從而對網路的設計、管理和應用起著非常重要的作用。
  11. In this paper introduced the study of fuzzy controller which was used for co2 supplying control from co2 source - high - pressure steel tin to culture box, studied the control of relative humidity and co2 concentration in the culture box and effects of co2 enrichment ( enrichment concentration was 900 - 1100mol mol - 1 ) on the growth of chrysanthemum plantlet and tried to clean the air in the culture box by cycling the results indicated that this environment control system operates normally and reliably. it can keep the co2 concentration and relative humidity in setting scope ; it is good to the growth of the culture plantlets to clean the air in culture box by cycling ; co2 enrichment can promote the growth and photosynthetic and can increase the percentage of shooting the number of new leaves of the chrysanthemum plantlet cultured under co2 - enriched condition is 1. 85 times of the plantlet cultured under co2 - nonenriched condition ; the number of the roots of the chrysanthemum plantlet cultured under co2 - enriched condition 5. 67 times greater compared with the plantlet cultured under co2 nonenriched condition

    結果表明：所研製的無糖組培微環境co _ 2增施監控系統工作正常、穩定、可靠，能有效地將組培箱內的co _ 2濃度及其相對濕度控制在設定范圍內；用箱外循環法對箱內氣體凈化處理后，改善了組培箱內的氣體環境，有利於組培苗的生長發育； co _ 2富集環境中，組培苗生長健壯、發育良好，生根率顯著提高，根系發達。本實驗條件下，處理組菊花組培苗的新增葉片數是對照組的1 . 85倍；處理組的根總長是對照組的10 . 6倍；處理組根數是對照組的6 . 67倍。
  12. Meanwhile, owing to the fact that there is huge hardness in accurate extracting of attenuation constant, one of the most new modified compact fdtd methods is applied to analyzing lossy multiple conductors to give accurate results. it is combined with the nonuniform mesh partitioning technique to reduce the computing time

    針對有耗導體衰減常數難以精確提取的問題，將一種最新改進降維方法應用到有耗多導體系統分析中，並結合非均勻網格劃分技術，在得到準確衰減常數的同時有效地減少計算時間。
  13. Secondly, on the basis of general discrimination of carbonate reservoir type, adopts fractal and fractal - dimension technique to bring forward the fractal characteristics of logging curves ( df ), new arithmetic of porosity index ( m ) and their connection to reservoir type, thus discriminates the carbonate reservoir type effectively

    其次，在碳酸鹽巖儲層類型常規識別的基礎上，採用分形分維技術，提出了測井曲線分數維（ df ） 、孔隙結構指數（ m ）的新演算法及其與儲層類型之間的關系，有效地進行了碳酸鹽巖儲層類型的定量識別。
  14. It solves payment issue through sharing pos and brush card. it solves info sharing and exchanging problem by enterprise application integration it adopts research method of software engineering and uses touch - screen, network, database technology and so on to carry through total design of the system and build the software : it uses user status identify and responsibility control to ensure database and application program ' s security ; it strengthen the code by coding optimize ; it captures and discards application runtime error to enhance the system ' s stability ; it uses multimedia voice and moving picture to show help information, thus makes the system easy to use ; it greatly reduces the maintenance work of the system by self - updating function ; it is an opening system by using star - model network top structure, supporting standard network communication protocol ? tcp / ip and offering standard software interfaced criterion

    論文採用軟體工程的研究方法，使用觸摸屏、網路、數據庫等技術，進行了系統總體方案設計和軟體開發：通過對數據庫和應用程序的用戶身份識別和權限控制，保證數據存取和應用程序的安全性；通過對代碼進行優化提高了代碼的健壯性；通過捕捉並拋出系統運行時的異常錯誤提高了系統的穩定性；通過多媒體語音、圖形和動畫提示幫助信息來增強系統的易用性；客戶端程序自動升級功能提高了系統的可維護性，有效地減少了維護工作量；系統採用星型的網路拓撲結構，支持標準的tcp ip網路通訊協議和規范的軟體介面標準，具有良好的開放性。
  15. For resource limited, the motion - video data stream with high bit - rate value used in mpeg - 2 standard can not forward exactly by media. or for the sake of resource more efficiently utilized, more multi - pass program streams can be forwarded in certain bandwidth

    Mpeg - 2的視頻數據流在帶寬資源不夠條件下，常常無法正常地傳輸，或者在一定的帶寬資源條件下，如何傳輸更多的節目流，更有效地利用帶寬資源？
  16. Monternet service created the data value - added business value chain that every parties co - work under the mobile network operator ’ s leading, mobilized and inspired enthusiasm and potential of the parties, effectively integrated resources from all sources, and get the rapid supernormal development

    移動夢網創造的以運營商為核心、各方分工合作的數據增值業務價值鏈，極大的調動和激發了各方的積極性和潛力，有效地整合了各方資源，獲得了超常規的迅猛發展。
  17. But the conventional structural approximate analysis methods based on the first - order or the second - order derivatives of the stresses and the displacements of structures are not global, while an efficient global structural approximate analysis methods is helpful to decrease the number of the times of structural analysis, so the amount of calculation of structural analysis in the structural optimum design is reduced

    但是常用的基於結構應力、位移的一階和二階導數的結構近似分析不具備全局性，而有效的全局性的結構近似分析可有效地降低結構分析次數，從而可減少結構優化設計中結構分析所需的計算量。
  18. A secure authentication and key exchange protocol is designed in this thesis, which could prevent man - in - the - middle attack, increasing the reliability of authentication and security of key exchange. the data encryption module is implemented by openssl including symmetry key algorithm, public key algorithm, hash function. the system ’ s function is tested finally, the data transmission rate using different encryption algorithm

    研究並設計了一套基於數字證書和數字簽名技術的身份認證協議和密鑰交換協議，能夠有效地防止中間人的竊取和篡改，提高了身份認證的可靠性和密鑰交換的安全性;利用openssl標準庫函數實現系統的數據加密模塊，實現對稱加密、非對稱加密以及信息摘要的常用演算法。
  19. Prof. f. h. wittmann, who is well - known in concrete science, points out that theoretical analysis and experiment are two aspects of traditional research on materials and today it is very necessary to add the numerial analysis and imitation to the research process as the third aspect. therefore, we can explain the real and complex laws of materials by new concept if these three aspects are effectively combined

    國際知名的混凝土學者f . h . wittmann教授指出：傳統上材料研究常通過理論和實驗兩個方面進行，今天需要把數值分析和模擬增補作為第三個分支；如果能把實驗、理論和數值分析三者有效地結合起來，那麼，在材料科學新概念的基礎之上，就可以闡明現實、復雜的材料規律。
  20. The numerical results under different methods, especially the simulation of recirculation region and reattachment length were carefully checked and compared. it indicated that the " variable c ? " model could effectively increase the dissipation near the wall and, more over improve the simulation of the reattachment length to close to the experimental results. 4

    比較不同修正方法下的圓管湍流計算結果，尤其是迴流區域和再附著長度的模擬結果表明：變模型常數的-模型有效地的增加了近壁區域的湍能耗散率，使再附著長度的計算結果更接近於實驗結果。
分享友人
分享到 Line

分享到臉書