流行前線 的英文怎麼說

中文拼音 [liúhángqiánxiàn]
流行前線 英文
style front
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
  • 前 : Ⅰ名詞1 （在正面的） front 2 （次序在先的） first; top 3 （過去的; 較早的） ago; before; preceding...
  • 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...
  • 流行 : prevalent; popular; fashionable; rage; run; in vogue
  1. The first part is introduction, presenting this paper ' s structure, research background and so on ; the second part introduces some issues relating closely to risk, the tangency point between indifference utility curve and efficient frontier is the optimal portfolio ; the third part explores risk evaluation, this part begins with some risk factors affecting security ' s price and return, then analyzes the methods evaluating degree of risk, finally, introduces a more popular method of risk evaluation - - var ; the forth part expounds risk management, this part studies some risk control strategies correspond to specific risk mentioned above ; the last part put forward some advice contrapose issues existed in risk management in china

    第一部分為緒論，介紹本文的相關背景；第二部分是與風險相關的幾個問題，等效用曲線與有效邊界的切點是投資者選擇的最佳投資組合；第三部分是風險衡量，該部分首先分析了證券與股票所面臨的風險，然後對債券和股票分別介紹，最後介紹了目前比較流行的風險衡量方法? ? var方法；第四部分為企業風險管理，這里針對上文所述的風險提出相應的風險控制策略；第五部分針對目前我國風險管理中存在的問題提出了幾點建議。
  2. As the hypothetical epicentre of pandemic influenza, hong kong has been at the forefront of research into the epidemiology of influenza viruses, avian, animal and human for many years

    作為爆發全球性大型流感的假設性中心，香港無論于流感病毒、禽鳥、動物或人類身上所作的流行病學研究，都是一直走在前線。
  3. Although chrysler had dramatically improved its designs and production lines, it failed to predict the fashions of the forecourt

    盡管克萊斯勒大大改進了設計和生產線，卻未能正確預測市場前沿的流行趨勢。
  4. A nonmonotonic criterion is used to speed up the convergence progress in some ill - conditioned cases

    既約hesse演算法是目前較流行的解決非線性等式約束優化問題的有效方法之一。
  5. 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
  6. This project focus on r & d of remote information transfer between some device, especially in the water - quality monitoring system. after learning the architecture of the popular pstn dial - up network. vpn broadband network and gsm wireless network, a new solution for remote communication was proposed. under this idea frame a communication hardware platform and software was developed

    本課題主要針對環境水質在線監控系統中的信息傳輸問題，對遠距離設備之間的信息傳輸方式及發展進行了研究，結合目前流行的pstn撥號上網方式、 vpn組網技術和gsm無線數字通訊技術，提出了一種新型的遠程設備之間信息傳輸與互聯的方案，並按照這個思路搭建出系統所需的硬體平臺，設計出實現這個方案的應用程序。
  7. Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa

    本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀；其次研究了橢圓曲線密碼體制的基本理論；第三，分析了橢圓曲線密碼的安全性並介紹了密鑰共享，加密，數字簽名等橢圓曲線密碼體制；第四，深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法，並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進，而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能，還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究，所得的結論可供在實現橢圓曲線密碼體制時參考；第五，研究了目前流行的計算橢圓曲線標量乘法的快速演算法，同時改進了固定基點梳形法，提高了整個系統的速度，並在實驗的基礎上分析研究了流行演算法的優劣；第六，實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫，在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh ， eces ， ecdsa等橢圓曲線密碼體制；第七，實現了兩條安全橢圓曲線上的橢圓曲線密碼體制，包括ecdh ， eces ， ecdsa 。
  8. 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。
  9. It ' s well known that the project documentations " storage and management have an very important effect on the development of all kinds of project, and as the information age is coming, network technology has been applied to this procedure gradually. this article mainly introduces the study and realization of a internet - based project documentation storage and management system which application programming frame is built with delphi6. 0 and sql server2000. based on the tcp / ip protocol, the system try to establish a c / s model with connection - oriented, dependable stream sockets and multithread technology to complete some especial data communications by networks, such as the files of project, directory of user, all self - defined commands or messages and their parameters, and so on

    本文所研究的《基於internet的項目文檔存儲管理系統》通過delphi6 . 0和visualc + + 6 . 0相結合的開發平臺，結合sqlserver2000 ，將client server模式的數據庫技術和windowssocket網路通信技術進行集成，遵循tcp ip協議，同樣採用c s結構運行於internet ，通過服務器將處于各個不同物理位置的客戶機連接起來，形成一個交流平臺；其中，引入了目前國際上流行的先進的安全管理控制方法? ?角色控制理論對用戶進行權限分配，使擁有相應角色的人具有相應權限；然後系統自動根據組織部門或用戶的設立在服務器端生成相應的網路「虛擬文件櫃」 ，使擁有相應權限的人可以對相應文件櫃中的文檔進行整理；再通過多線程技術和windows套接字通信機制在tcp ip協議上實現了單個文件及目錄的傳輸。
  10. Compared with the multi - unit approaches, maximum nongaussinity estimation is superiror in simple theoretical foundation and flexible implementation, and thereof the popular fast fixed - point iteration ( fastica ) based on negentropy approximation has become one of the most popular algorithms for ica

    和非線性去相關方法比較，最大非高斯估計的原理簡單、實現靈活，其中基於負熵近似的快速不動點演算法（ fastica ）已經成為當前最為流行的ica演算法之一。
  11. Another algorithm is based on pixels : sample many points along the curve, round them to the nearest integer and set each pixel the computed point falls in. although this algorithm uses integer arithmetic, it provides the smooth curve possible at the expense of computation time as many points have to be computed to ensure that no gaps are created along the curve. furthermore these two algorithms we mentioned above is appropriate for low degree parametric curves, for high degree parametric curves, we usually approach them by using low degree rational parametric curves, the generating curve ' s fairness property is not very good

    我們知道當節點矢量的兩端節點均為k重節點且無內節點時， b樣條基函數退化為bemstein多項式，因此該生成演算法還可推廣到b能ier曲線中，具有廣泛的應用價值、同樣地，在cad和cagd中，有理b樣條曲線，特別是非均勻有理b樣條曲線（ nurbs ）已經成為曲線曲面設計中最廣為流行的技術，然而對這些曲線目前也尚無很好的曲線生成演算法，因此有理b樣條曲線的生成演算法無疑有著更重要的意義
  12. Firstly, this paper makes a detailed study on the field control bus system ( pcs ), including the characters of pcs by comparing fcs and dcs, model networking of pcs and several popular field bus, then put forward a question for discussion combining embeded internet technology and field bus and measure and control networking model based embeded internet technology is constructed. secondly, it studies embeded system including the core of hardware ? mbeded microprocessor and real time operation system. thirdly, the method of realizing embeded internet is discussed for emphasis, and difficulty of ehernet application in industry measure & control system is analysed. an instance of measure & control networking system based embedded ip is given. finally, the author designed a networked remote video surveillance system based embedded web server, c / os - ii is sacled and ported into the embedded microprocessor at89c51. based on the c / os - ii rtos, tcp / ip protocol suite and application program is designed in detail. the system w orks well that improves that the embedded internet technology will be widely used in modern measure & control networking system and has extend values

    本文首先分析了現場總線系統（ fcs ）與傳統集散控制系統（ dcs ）相比具有的特點、 fcs的網路體系結構，介紹了幾種流行的現場總線，提出了將嵌入式internet技術結合現場總線構建現代測控網路的課題；在此基礎上，構建了基於嵌入式internet技術的測控網路結構模型；深入研究了嵌入式系統的核心硬體?嵌入式微處理器，通過對比普通操作系統，描述了嵌入式實時操作系統的特點；重點研究了實現嵌入式internet的四種實現方法，並分析了以太網在工業測控系統中應用的難點，給出了一個基於嵌入式ip的網路測控系統實例；最後，研究與設計了一個基於嵌入式web服務器的遠程網路視頻監控系統，該嵌入式web服務器利用目前成熟的嵌入式實時操作系統c / os - ，通過對c / os -進行適當的裁剪、修改與移植，在at89c51嵌入式微處理器上實現了tcp / ip協議棧及應用程序，系統的成功運行證明了本文研究成果的有效性，也表明嵌入式internet技術在現代測控網路系統中具有廣闊的應用前景和推廣價值。
  13. Taiyuan liuxingqianxian business and trade co., ltd

    太原流行前線商貿城
  14. The numerical simulation for adjustable - blade pump on - line autoregulation in diversion works has been studied in this paper whose background is modification works of dongjiang - shengzhen diversion works. the problems include autoregulation on water height of the fore bay in single pump station, autoregulation on output of adjustable - blade pump in single pump station, and autoregulation on flow equation of multilevel pump stations

    本論文以東江深圳供水改造工程為背景，對輸水工程中應用轉槳泵進行在線自動調節數字模擬進行了研究，其中包括單級泵站中對前池水位進行自動調節，單級泵站中對轉槳泵的輸出流量進行自動調節，以及多級泵站輸水系統流量平衡自動調節。
  15. In this thesis, we studied the basic theory of constructing isoline and the corresponding algorithm. based on object oriented technology, we implemented computer aided auto drawing of thrust isoline graph

    本文的目的就是通過探討等值線構造的實現原理和相應的演算法技巧，使用目前流行的面向對象程序設計技術，在計算機上實現逆斷層地質等值線圖的自動繪制。
  16. This research subject is designed for s & t development project, real time monitor of steam turbine electrical generators, proposed by jin ling petrochemical company. using the technology of vibratory signal processing, hardware and software in computer field, and data communication in computer network, the cmd - 3n system is designed for accomplish the project

    本課題主要針對金陵石油化工公司電廠提出的汽輪發電機組在線監測的開發項目，結合目前振動信號處理理論、先進的計算機硬體和軟體的技術以及當前流行的網路處理技術，提出了一套完善的解決方案，設計出cmd - 3n汽輪發電機組在線監測與診斷系統。
  17. This researching subject is designed for s & t development project, a real time monitor of reciprocating machinery, proposed by yang zi petrochemical company. using the technology of vibratory signal processing, hardware and software in computer field, and data communication in computer network, the cmd - 3n system is designed for accomplish the project

    本課題主要針對揚子石油化工公司提出的往復式壓縮機組在線監測的開發項目，結合目前振動信號處理理論、先進的計算機硬體和軟體的技術以及當前流行的網路處理技術，提出了一套完善的解決方案，設計出cmd - 3n往復式壓縮機組在線監測與診斷系統。
  18. By a practical engineering, this paper is about research & design job of industrial field lans based on the siamtic sinec, siemens corp. the author constructed a rudiment of pcs, which was the abbreviation for fieldbus control system, by using fieldbus technology, and accomplished the data communication between operating stations and field equipments

    本文主要的工作是通過一個實際的項目，進行了基於西門子公司simaticsinec工業現場通信網路的研究與設計。作者採用目前日益流行的現場總線技術，構建了新一代fcs （現場總線控制系統）的雛形，實現了現場設備和操作站之間的數據交換，為企業建設cims乃至企業全面的信息化打下了堅實的基礎。
  19. The latest results show the distribution of the - ray burst sources is isotropic but nonuniform and indicate the sourses locate at the cosmological distance. this paper introduces the observational properties and classification of grb, and discusses serveral popular models

    觀測結果表明，射線爆源空間分佈是各向同性但不均勻的，說明射線爆起源於宇宙學距離.本文介紹射線爆的觀測情況和分類，並討論了幾種當前比較流行的射線爆理論模型
  20. Abstract : the latest results show the distribution of the - ray burst sources is isotropic but nonuniform and indicate the sourses locate at the cosmological distance. this paper introduces the observational properties and classification of grb, and discusses serveral popular models

    文摘:觀測結果表明，射線爆源空間分佈是各向同性但不均勻的，說明射線爆起源於宇宙學距離.本文介紹射線爆的觀測情況和分類，並討論了幾種當前比較流行的射線爆理論模型
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