time variable data 中文意思是什麼

time variable data 解釋
時變多徑通道
  • 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 ...
  • variable : adj 1 易變的,變化無常的,無定的 (opp constant steady)。2 可變的,能變的;變換的。3 【數學】變...
  • data : n 1 資料,材料〈此詞系 datum 的復數。但 datum 罕用,一般即以 data 作為集合詞,在口語中往往用單數...
  1. Part two introduces the theory of panel data. the basic form of panel data is : yi t = it + xi t it + uit, i = 1, 2, …, n ; t = 1, 2, …, t panel data is used for describing the instance of swatch in a collectivity in some time, and observing every unit in swatch multi - scale. basing on the different hypothesis of ui, panel data has fixed effect model and random effect model, if ui is a unit constant ( corresponding to the dummy variable of

    基於分析結果,本文給出了改革我國公司治理結構的若干建議: ( 1 )股權性質方面,培育有效的國家股持股主體; ( 2 )股權結構方面,逐漸調整股權結構,減少第一大股東持股比例,增加除第一大股東以外的大股東的股權集中度; ( 3 )董事會方面,採取奇數型董事會規模,並完善獨立董事的生成機制; ( 4 )激勵制度方面,應加大董事及總經理的持股比例。
  2. The condition of profiles in outer station did n ' t change much in spring cruise, but showed more variable in near - shore stations when observed in different time. fluorescent characteristic per cell can be obtained by flowcytometric analysis. based on fluorescence data of synechococcus of all stations, two distinctly pigment - containing cell types coexisting can be found in some stations of east china sea, which located in all depth of p3, mixlayer of e7, 40 - meter depth of e6 of autumn cruise and in mixlayer of p2 of spring cruise

    通過對流式細胞計測量的細胞熒光結果來看,在秋季的p3 、 e7整個混合層、 e6站40米層,春季的p2站均發現有兩群不同色素含量的聚球藻( high一pe和low一pe )共存現象,極有可能分別屬于不同品系,春季共存站位位置比秋季時更靠外,表明在秋季p3 、 e7等站位的共存是季節性現象,可能與此季節黑潮次表層水沿陸架坡涌升入侵到中陸架有關,水團的運動及混合使從外海遷移而來的high一pe與近岸的low一pe得以共存,在春季,由於長江沖淡水的日漸強盛,在中陸架區的共存區域有所外移。
  3. The algorithm can be applied to connection routing in pcbs with various pad geometry and pad sizes, with different wire widths and variable distances between wires. the basic element in routing is the search line with a given destination. the main features of the router are the target orientation of the search lines, the routing efficiency is guaranteed by rationally designed data structures and by the ability of searching around obstacles, the small amount of working storage and the reasonably short routing time

    該布線演算法適用於焊盤外形尺寸不一,線寬及線間距離可變的印刷電路板布線,其基本要素是帶有預定終點的探索線,特點是線探索具有目標針對性,設計合理的數據結構及靈活的繞障探索方式可大大提高搜索效率,所需存儲量小,布線速度快。
  4. The data processing system further includes a convoluted inverse transforming means for inversely transforming the discrete function in a second - variable - domain back to the time domain at a second sampling frequency for converting t he input data to a set corresponding data sampled at the second sampling frequency

    此資料處理系統也包含一個旋積的逆轉換裝置,用來對以第二個變數為定義領域的離散函數,逆轉換回以第二個取樣頻率為頻率及以時間為定義領域的函數,也就是將資料轉換成以第二個取樣頻率所取樣的資料。
  5. Batch process data can be arranged in a three - way matrix ( batch x variable x time ), and the process of antibiotic fermentation is a typical batch process

    將多元統計分析方法應用於發酵過程性能監控。間歇過程的數據可以用三維數組來表示,抗生素發酵過程是一個間歇過程。
  6. On the basis of displacement - time series of the slope, a nonlinear dynamic model is set up according to backus generalized linear inversion theory in this paper. due to the equivalence beween autonomous gradient system and catastrophe model, a standard cusp catastrophe model can be obtained through variable substitution. the method is used in analysis of displacement data of huangci landslide and wolongsi landslide and in understanding how slopes evolve before sliding. the result shows that the nonlinear dynamic model can make satisfactory prediction result. is it most important that there is a sudden fall of d, which indicates the occurrence of catastrophe ( when d = 0 )

    研究表明,滑坡變形失穩過程具有混沌和分維特性,可以用分形理論來研究滑坡預測問題,基於對任一連續函數,至少在較小的鄰域內可以用多項式任意逼近的數學理論,運用改進的backus廣義線性反演理論,以斜坡位移時間序列為基礎,反演了斜坡演化的非線性動力學模型。並利用自治梯度系統與突變模型的等價性,通過變量代換得到標準的尖點突變模型。
  7. With the fast development of computer technology and the specialization trend of 3d gis, it is necessary and realizable to building a visible, digital, informational and intelligentized system with the three - dimensional visualization foundation, only in which variable of data and information can be fed back to users in time, dynamic and straight

    隨著計算機技術的快速發展以及三維地理信息系統的部門化的發展趨勢,構建一個可視化、數字化、信息化、智能化的水利領域三維可視化系統不僅是必要的而且是可行的,要實現這樣一個系統,三維可視化是基礎,只有在可視化的環境中才能將各種數據和信息及時、動態、直觀地反饋給用戶。
  8. 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。
  9. The " net cash flow from operating activities / net profit ", a cash flow indicator that is emphasized both at home and abroad, was first time to be treated as one of the variables for corporate performance. the listed companies of manufacturing industry were grouped according to their asset scale and industry property. the empirical study of equity structure and corporate performance were carried out through combining the empirical analysis and theoretical analysis and by using stochastic variable intercept paral data mode and sas software package

    本文以製造業303家上市公司為總樣本,確定了6個股權結構變量、 7個經營績效變量,並在經營績效變量中,首次引入了國內外尤為關注的現金流量指標? ?盈餘現金保障倍數;將製造業各次類上市公司,按資產規模和行業性質進行劃分,採用實證分析與規范分析相結合的方式,運用計量經濟學建模方法? ?隨機影響變截距平行數據法,應用sas統計軟體,對我國上市公司的股權結構與經營績效進行實證研究。
  10. The pps also has some drawbacks, such as it can not provide qos guarantee, data can not remain the right order after switched by different switching panel. at the same time, people show interested in the variable - length packet switching

    但是多平面交換帶來的另外的問題,如無法對qos提供很好的保證,出口端的數據包由於經過不同的交換平面的處理,難保證按照順序到達出埠。
  11. It is observed experimentally and algorithmically that when training data are noisy and overlapping, many support vectors have lagrange multipliers on the upper bound. if it were known beforehand which examples are bound support vectors, these examples could be removed from the training set and their values are fixed at the upper bound. due to the reduced free variable counts, this method is promising to improve training time

    實驗和演算法推導顯示在強噪聲和類間重疊數據下訓練svm得到的支持向量很多處于邊界位置,如果我們能夠預先知道哪些樣本是邊界支持向量,這些邊界支持向量的值就可以被固定在邊界處,從而不參加訓練過程,這樣,訓練過程中要優化的變量就可以減少,運行時間也可以縮短。
  12. Other systems may provide archival quality data but perhaps with a variable lag time

    其它的一些系統也許可以提供高質量的檔案數據,但是或許會存在不可知的滯后時間。
  13. Based upon practical engineering applications, the variant separating - variable algorithms of hyper - surface fitting for arbitrary multivariate scattered data are presented by separating positional variables in a spatial domain from certain physical variables such as time, mach number, angle of attack and so on, followed by their comparison. when compared with existing scatted data interpolation algorithms, the new ones are more effective. a sufficient condition to exchangeable order of separation is obtained and order of continuity on the hyper - surfaces above is discussed

    三、以實際工程應用為背景,將具有某種物理意義的量(如時間、 ma數、迎角等)與空間位置變量分開處理,給出任意散亂數據超曲面擬合變量分離的各種演算法,對它們進行了演算法的分析比較,獲得了分離次序可交換性的充分條件,給出了變量分離法構造的超曲面的光滑階。
  14. Abstract : according to time - sharing price counting policy of electricpower, the relationships of current density and current efficiency at different ratios of sulfuric acid and zinc are obtained through analyzing process data of electrolytic zinc process ( ezp ), and an optimization model of time - sharing power supply dispatching system ( tpsds ) of ezp is established. an single - loop simulated anneling algorithm with mutation and variable searching spaces is proposed and applied to the tpsds to obtain optimal time - sharing power supply scheme. industrial practical results show that the optimal dispatching system can greatly decrease the power consumption of ezp and increase the time - sharing profits

    文摘:依據電力部門的分時計價政策,根據由生產過程數據所建立的不同酸鋅比下電流密度與電流效率間關系,建立鋅電解過程分時供電優化模型.同時,提出一種帶變異操作和變搜索空間的單循環模擬退火演算法,並將該演算法應用於分時供電優化調度,獲得最優的分時供電方案.工廠運行結果表明:整個優化調度系統能顯著降低鋅電解過程的電耗並增加分時效益
  15. In view of hardware design proposal on a new detection controller in the vertical drilling system based on the single chip microcomputer of c8051f020. two typical structure of software design flow of detection controller is description and the fixed time gap detection control and variable pressure gap of the data storage method is given in this paper

    針對基於c8051f020實現的一種新的垂鉆系統監測控制器硬體設計方案,給出了兩種典型結構的檢測控制器的軟體設計流程,提出了固定時間間隔檢測控制和變壓力間隔的數據存儲方法。
  16. Based on the theoretical numerical simulation, experimental data of calibration pits, and time - elapsing logging data in cased production pits, a study is made for searching an evaluation method for cementing quality of the secondary interface by variable density logging ( vdl ), and the eigenvalue about the cementing quality of the secondary interface is obtained

    摘要從理論正演數值模擬、刻度井試驗資料和實際生產井時間推移測井資料3個方面,探索用變密度( vdl )波形評價第二界面膠結質量的方法,提取反映第二界面的膠結狀況的特徵量。
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