datum time 中文意思是什麼

datum time 解釋
計時基準起始時間
  • datum : n. （pl. data ） 〈拉丁語〉1. 〈常 pl. 〉 數據，資料。2. 論據，作為論據的事實。3. 【數學】已知數。4. 【測】基點，基線，基面。
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  1. And we come to the following conclusions : ( 1 ) looked from the returns ratio target that, all funds achievement are better than the market datum combination ’ s in the sample time, but the funds overall achievement is inferior to interest rate ; ( 2 ) after the modification of the risk factor, our mutual funds outguess the market ; ( 3 ) there is not enough evidence that indicate that chinese security investment funds have choosing ability in the market opportunity and choosing ability in the security. ( 4 ) the achievement in the past of the fund can not represent market manifestation in the future of the fund. this article innovation mainly has following several aspects : ( 1 ) have established the overall target of a appraisal fund achievement and gone on the real example to analyze with the mathematics model, having solved the inconsistency problem of appraising the result of many kinds of

    在此背景下，本文希望通過借鑒國外對基金業績評價方面的經驗，結合我國的國情嘗試盡可能真實的、多角度分析我國證券投資基金在不同市場時期的業績特點，如投資基金的回報及其承擔的風險，基金經理的擇時能力和選股能力究竟怎樣，基金業績是否具有持續性等等，為基金投資者、監管者、基金管理公司以及基金的發展提供一些參考，以引導社會資源更多地流向擁有理性投資理念、資產管理能力出色的基金管理公司，實現資源的優化配置，進而推動市場投資理念走向成熟。
  2. This article is divided into four parts : part one emphasizes the common theory that corporate governance structure figures out the agent problems caused by the separation of ownership and control power, and sets forth correlative research done by domestic and foreign scholars from the relationship between centralization degree of ownership and performance, the relationship between incentive of senior managers and performance, and the relationship between board and performance. and puts forward some deficiencies in domestic research, for example, the select of performance is bald ; most research methods are cross section analysis, there is little research basing on both time serial and cross section datum ; and there is little research have the inside and outside corporate governance factors in the selection of corporate governance structure indexes

    描述性分析介紹了我國上市公司治理結構的現狀;通過公司治理變量的線性組合，採用主元分析法來構造反映公司治理水平的指標z ，並由此z指標回歸經營績效指標得出公司經營績效與公司治理的整體效果有相同方向變化的結論;變量之間的相關關系揭示了這些變量之間關系的合理信息;面板數據結果顯示:第一大股東持股比例、國有控股虛擬變量與經營績效負相關;第二至第十大股東股權集中度、董事會持股比例和總經理持股比例與經營績效正相關。
  3. It can realize the automatic measurement rainfall and sequence record history datum on time with the rtc ; the system can be taken notes history datum more than 1 month at least ; communication interface supported by the serial communication interface can link with the pc ' s rs232, telephone network and mobile telephone network ; it can persist in working with backup power more than 1 day when the local junction circuit stops providing electricity

    它可以實現自動測量降雨量；具備實時時鐘，按時間順序記錄歷史資料，系統至少能夠記錄1月以上的歷史資料；具備串列通訊介面，通訊介面應支持如下功能：與pc計算機的rs232介面、與電話網連接、與移動通訊網連接；具有后備電源，在市電斷電時能堅持工作1天以上。
  4. Analyze item by item the position of unintact cycle, the running clearance of unintact cycle, locking - deform, datum dimension regulating, repeatly install, power voltage wave and marking running etc. at the same time, we give the calculating formula to calculating the running marking random error, and use it to calculate the system error of big diameter measure instrument - - datum dimension frame error, gyro - wheel diameter error, error caused by circumstance temperature, error caused by backing distance, angle error, delay error of data collecting circuit, lathe main shaft running error, workpiece install partial error

    對不完整圓的位置、不完整圓的轉動間隙、鎖緊變形、基準尺調整、重復安裝、電源電壓波動、標記轉動等隨機誤差進行了逐項分析，並給出轉動標記隨機誤差的計算公式。對大直徑測量儀的系統誤差?基準尺尺架誤差、滾輪直徑誤差、環境溫度引起的誤差、後退距離引起的誤差、角度誤差、數據採集電路延時誤差、車床主軸回轉誤差、工件安裝偏心誤差分別進行了計算，最後對誤差進行合成。
  5. It is not that the time-shape of new input stream is a pure technical datum.

    新的進貨川流的時間形狀並不是一種純技術的資料。
  6. Making use of the time series exhibitions of the fluctuation - rate datum, we make our study for the following two purposes : one is to observe whether the preannouncing companies " temporal - condition variance of the series of the return rate conforms to the demand of sta bility ; the other is to decide whether the preannouncing companies " stocks have asymmetrical - information adjustment, this is to say, to decide how the companies response to good or bad news

    為了進一步檢驗盈餘預告新規則實施效果，我們考慮從波動性入手對股票市場的穩定性進行系統分析。我們嘗試利用波動率數值的時間序列表現進行研究，力圖了解：預告公司股票日收益率序列的時變條件方差是否滿足穩定性要求。預告公司股票是否存在信息非對稱性調整現象，即對利好利空消息分別做出何種反應。
  7. Especially, the idea of " datum dimension precision back " is being put forward, and this idea is being realized by backing composition composed by outer - diameter micrometer, airproof shafting, microwatch. at the same time, use " non - lock " to replace " lock ", this way make the system compact, eliminate many bigger error and resolve th

    尤其是提出了基準尺調整后精確後退的思想，並通過外徑百分尺、密珠軸系、千分表組成後退機構加以實現。同時以「無鎖」代「鎖」 ，使系統結構緊湊，受力小，消除了多項較大誤差從而解決了測試精度低的關鍵問題。
  8. The text uses the macroeconomic model to analyze the measurement mechanism of the financial risk datum point level. it describes the basic mechanism that the loss factor conducting with the whole macroeconomic environment in the financial system in detail at the same time. and it analyzed the original cause of the condition that transforms each other briefly and the basic theory of fiscal crisis

    在這些分析的基礎上本文把風險管理理論系統地引入財政風險研究中來，分析了財政風險過程的基本特徵，闡發了財政風險轉化條件、基準點等概念，運用宏觀經濟模型構建了財政風險基準點水平的衡量機制，詳細描繪了損失因素在財政系統內部和整個宏觀經濟環境中傳導的基本機理，並簡要分析了財政危機的成因、發生條件和向其他領域危機相互轉化的條件。
  9. As an efficient approach to improve the accuracy of numerical weather prediction, four - dimensional variational assimilation is widely focused on by the domestic and overseas experts. one of its important characteristics is that the data in one time can influence previousanalysis results, which can not only provide the optimized initial condition but also make up observation datum ' s absence in some areas

    四維變分同化方法作為一種提高數值天氣預報的有效方法受到國內外專家的廣泛關注，其重要特點是一個時次的數據可以影響到它以前時間的分析結果，因此不但可以為數值預報模式提供初始場，而且可以對觀測資料不足的地區加以彌補。
  10. Thirdly, circling around the goal of m & a exposed in the first part, this paper avoids one - side factor of using only one year financial variable. we take the listed company which did m & a in 1997 as samples and study on the variables of return of earning ( roe ), earning per share ( eps ) and the change of their stock prices through 5 years datum from 1996 to 2000. all is to analyze the changing tendency of m & a ' s performance in a long time as for the samples

    三、圍繞本文第一部分中所揭示的並購動機，避免單純採用當年財務指標評價的片面性，以1997年上市公司並購前後五年的年報數據為實證研究資料，選取凈資產收益率（ roe ）和每股收益率（ eps ）以及股價變動等指標，動態分析1997年上市公司並購的長期績效變動情況，評價該年上市公司並購績效的優劣狀況。
  11. One is to use fourier transformation to convert the source signal from time domain to frequency domain and to discard high frequency harmonious components upwards of 19 ( gb / t14953 - 93 d5. 3 demanding ), then to have static huffman coding to the quantized char array which is composed of reserved direct current component and basic wave and each high frequency " s amplitudes and angles. the other is to use discrete wavelet transformation to convert the source signal from time domain to frequency domain and to set the high frequency coefficients that its absolute value is smaller than the given threshold to zero, then to have dynamic huffman coding to the quantized char array which is composed of multiple, wavelet ' s level, datum length, low frequency coefficients and reserved high frequency coefficients. mass simulinks and analyses under the two circumstances have done to show that data compression ratio is small and the relative error is also small and within the permission of engineering and the compression problem can be solved in theory of measured datum of power system

    第一種情況的壓縮方法為：採用傳統的傅立葉變換把原始信號從時間域變換到頻率域，舍棄20次及其以上的高次諧波成分（保證了gb / t14953 ? 93d5 . 3要求） ，然後對保留的直流分量、基波和各次諧波的幅值和相角數據量化后和量化時分別乘以的倍數系數構成一個數組，以字元形式保存，採用靜態huffman編碼對變換數據進行壓縮；採用離散小波變換把原始信號從時間域變換到頻率域，然後對分解得到的高頻系數進行閾值量化處理，對乘以的倍數系數、小波變換的階數、小波變換后的低頻、各級高頻以及原始數據長度、量化后的低頻系數以及保留的高頻系數大小、位置構成一個數組，以字元形式保存，採用動態huffman編碼對這個文件進行壓縮。
  12. Data warehouse support to manage decision - making process, theme - oriented, become, lasting datum set with time that integrate

    數據倉庫是支持管理決策過程的、面向主題的、集成的、隨時間而變得、持久的數據集合。
  13. Abstract : for quick understanding the states of embedded places of instruments and their operation conditions so as to find and handle problems in time, by helping of some typical illustrations, the problems of drawing complex safety - monitoring engineering graphs are emphatically resolved using software excel97, including two longitudinal coordinate values versus a transverse coordinate datum for two curves in a same figure ; exchanging position of independent variable ( x ) and dependent variable ( y ) ; different start - points or frequency of data series and drawing displacement nonitoring network etc

    文摘:為使監測人員快速、及時了解儀器埋設部位的狀況及運行情況，發現問題及時處理，通過列舉典型例子，利用excel通用軟體，重點解決了繪制復雜安全監測工程圖表問題：即同一圖中兩條以上曲線分別對應兩個不同縱坐標；自變量與因變量位置交換；數據系列起始點或監測頻次不同；變形監測控制網繪制等。
  14. According to the limit of real project, we cannot process each datum in real time, because signal transmission need some time, and there is a time lagging

    並且，在實際工程中，也不可能做到對每一個傳來的數據進行實時處理，這期間有一個時間滯后的過程。
  15. This thesis mainly describes a tesing and consoling kit based on ni " s special virtual instrument software development kit - labwindows / cvi, aming at traditional testing device " s limitation such as high cost of hardware, complexity of construct, singleness of function etc. the tesing and consoling kit can condition the signal intermixed with interfere noise and deal with the collected datum through common signal conditioning ( amplification, isolation multiplex filtering ) -, software calibration digital filtering etc to analyse signal in time and frequency domain

    本文針對傳統測量設備硬體成本高、構造復雜、重用性差、功能單一等方面的問題，著重探討了利用ni的labwindows cvi這一虛擬儀器開發軟體構建的測控平臺，通過通用信號調理（如放大、隔離、多路轉換、模擬濾波等） 、軟體校正、數字濾波等方法對混雜有干擾的信號進行調理及採集后的數據進行處理，然後進行時域或頻域的分析。
  16. When intrusion detection system being on dealing with datum of magnanimity, data mining can very fine to carry on feature extraction and establish intrusion pattern knowledge base on a large number of data of historical behavior mode. intrusion detection system can adopt date mining at the time of establishing the knowledge base of the intrusion mode

    進行特徵提取，入侵檢測系統在建立入侵模式知u則1 ！時可采川數據挖掘技術。 wenkelee從數抿挖掘中得到啟示，介發出了一個混升檢測器ripper 。
  17. The article have analysed the subject matter of basic conception of the data warehouse and present research and some research results in detail in this thesis, having analysed the warehouse technological development trend of the data, and the applicationes in telecommunications of guiyang, etc., have introduced telecommunications of guiyang and utilize warehouse technology of the data to build the statistical analysis system of the business decision and design the situation in detail, technological route, solution, etc., at the same time according to the reality of guiyang telecommunication put forward a solution of medium and small scale telecommunication service operation datum warehouse and a new thought of telecommunication enterprise subject analysis and its application situation of guiyang telecommunication

    本論文詳細地分析了數據倉庫的基本概念以及當前研究的主要問題和一些研究成果，分析了數據倉庫技術發展趨勢，以及在貴陽電信中的應用等，詳細介紹了貴陽電信利用數據倉庫技術建設經營決策統計分析系統設計情況，技術路線，解決方法等，同時根據貴陽電信的實際提出了一種中小電信業務規模的數據倉庫解決辦法和電信企業主題分析的新思路以及在貴陽電信的應用情況。
  18. The code synchronization pulse brought from code synchrolock has the synchronization benchmark heart function in the demodulation processing. at the same time, it is the base of frame demodulation and datum processing

    位同步器產生的位同步信號起著遙測解調處理「同步基準」的關鍵作用，是后續幀格式解調和數據處理的基礎。
  19. At first, the paper discusses the method of doppler parameter estimation based on raw datum, and analyzes the realization for range - doppler algorithm in real - time processing, motion compensation, datum subsection and geometry emendation. then, the corresponding system solution based on the algorithm is put forward. the versa module eurocard bus construction is adopted in the system design

    本文首先討論了基於原始數據的多普勒參數的估計方法，並且分析了距離多普勒演算法在實時處理中的實現，以及實時成像下的運動補償、數據分段及幾何校正；然後在此演算法的基礎上提出了相應的系統解決方案，系統設計採用vme總線結構，其運算核心部分是一個由四片數字信號處理器組成的共享總線式并行處理模塊，論文並提供了整個實時成像演算法的軟體實現。
  20. Chapter three describes the uneven development of regional economy utilizing many time array datum and cross section datum. afterwards, the regional difference of the location of fdi and its affecting factor is analyzed. chapter four chiefly studies the effect of fdi on regional economic growth from two aspects named theoretic analysis and positive analysis

    本章利用大量的時間序列和橫斷面數據資料，分別從地區經濟總量、經濟發展水平、發展速度和fdi總量、地區分佈絕對差距和相對差距方面描述了中國引進fdi與區域經濟的不平衡特徵，進而對導致這種區域不均衡分佈的原因進行了剖析。
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