time-mean value 中文意思是什麼

time-mean value 解釋
時間平均值
  • 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 ...
  • mean : vt 1 意，有…的意思，意思是…。2 意指，用…意思說；意味著，就是。3 （用語言、繪畫等）表示意思，表示...
  • value : n 1 價值；重要性；益處。2 估價，評價。3 價格，所值；交換力。4 （郵票的）面值。5 等值；值得花的代...
  1. On the one hand, the author discusses markowitz ' s mean - variance portfolio selection model, single - index portfolio selection model, and simplified model of optimal portfolio selection. at the same time, based on the rules of optimal portfolio selection and other risk - metric indices, the author also discusses mean - absolute deviation model, mean - semivariance model and mean - value at risk model. on the other hand, the author discusses the asset pricing model, including the capital asset pricing model ( capm ), the multi - factor asset pricing model, and the arbitrage pricing model ( apt )

    一方面，作者討論了馬科維茲的均值-方差資產組合選擇模型、單指數資產組合選擇模型、最優資產組合選擇的簡化模型，同時根據最優資產組合選擇原則和其他風險度量指標，討論了均值-絕對離差、均值-半方差和均值-風險價值資產組合選擇模型；另一方面，作者討論了資產定價模型，包括多因素資產定價模型和套利定價模型，特別是在四種因素變量的基礎上，探討多因素資產定價模型。
  2. The listed companies are and will be important to china domestic economy with the development of the securities market ; in fact, the capitalization value is about 50 % of gdp. however, there are lots of problems in chinese corporate governance, which hinder the development of the companies themselves, and endanger china securities market. at the mean time, a part of corporate governance chain, the market for corporate control, is emerging in the mainland

    隨著我國證券市場的快速發展，股票市值已相當於我國gdp的50左右；據上海證券信息有限公司統計，截至2003年4月30日，滬深兩市已公布年報的1236家上市公司2002年的主營業務收入合計超過1 . 9萬億元，相當于去年我國gdp總量的19 ，上市公司在我國經濟生活中的地位越來越重要。
  3. The evolution time in our calculation is chosen to be 12 gyr, which is the mean value of globular cluster ages in the galaxy

    恆星蒸發對小質量球狀星團的演化起著主導作用，大質量恆星的演化、銀河系核球和盤的沖擊加熱以及動力學磨擦則主要影響大質量球狀星團的演化。
  4. A analysis of these effect to the pattern is presented. in the mean time, the method of correcting the phase errors is given by shortening or lengthening the section of sinuous feed line between couplers from the normal value. 6. the reflection characteristic of a serpentine is analyzed where the coupler is replaced by the equivalent of two ports loss network

    提出了用有耗二埠網路來等效波導耦合器的方法，對由耦合器、饋電波導和波導彎頭級聯的慢波線系統的駐波特性進行了分析計算，針對慢波線在設計測射頻率上大反射問題，討論了多種解決辦法。
  5. In this paper, the repairable queuing system with police is studied. some important queuing quantities and reliability quantities are in detail discussed as follows : ( 1 ) using the renewal process theory and the method of stochastic decomposition, both the transient and equilibrium distributions of the queue length from any state are discussed, and the recursion expression of the equilibrium distribution is given by furthermore, the generating function of equilibrium queuing length distribution is given by ( 2 ) the distribution of waiting time is discussed, and the mean waiting time is given by ( 3 ) the departure of the system is discussed, and the mean value of departure customers when is given by

    具體如下： （ 1 ）利用更新過程理論和隨機分解方法，討論了從任意初始狀態出發隊長分佈的瞬態解和穩態解，得到了隊長平穩分佈的遞推公式：並進一步求得了系統的穩態隊長分佈的母函數（ 2 ）討論了穩態等待時間分佈，求得了平均等待時間： （ 3 ）討論了系統的輸出過程，求得了長期單位時間內離去顧客的平均數： （ 4 ）討論了服務臺的不可用度，得到了穩態不可用度: （ 5 ）討論了內服務臺平均故障次數，求得了長期單位時間內的平均故障次數
  6. The present article understands that the improvement of the civil regime relies on insistence of the following principles : ( l ) the assurance of judicial justice, as to realize the axiological objective of the regime ; ( 2 ) proportional intervention, on interfering illicit civil activities, proportionality should be considered ; ( 3 ) procedural effectiviness, to achieve the maximum litigation effect with the minimum litigation cost specially for the cases in which technical defects are found, but in the mean time, common interest are not prejudiced, the promotion of civil protest may lead to an expenditure much higher than the litigation value, therefore, civil protest authority should not promote the civil protest

    維護司法公正原則，是完善民事抗訴制度的重要原則之一，體現了制定這項制度的目的；適度干預原則在強調對違法民事行為進行干預的同時，指出這種干預應是適度的。抗訴的適度性體現在兩個方面：一是尊重當事人的處分權，二是維護法院裁判的既判力。訴訟效益原則指出，民事抗訴制度應以最少量的訴訟投入獲得最優化的訴訟效果，對于那些雖在技術上存在不足或缺憾之處但不損害公益的生效裁判，若提出抗訴可能導致人力物力的支出比裁判所涉及的訴訟標的額更大或造成當事人的無端訟累，抗訴機關不宜提出抗訴。
  7. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。
  8. When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system

    在探討可靠性設計與可靠性保障技術時，提出了石油測井儀器的可靠性計算新模型，從電氣和機械兩個方面，提出並闡述了應採用的可靠性保障技術及其使用方法：根據最新可靠性理論，建立了石油測井儀器的可靠性系統模型，探討了石油測井儀器的可靠性指標及其獲取途徑，提出了推薦使用的石油測井儀器可靠性指標（ mwture ， nolwnm ， mtbf ， mttf ） ；通過試驗，得到了所設計儀器的穩定工作時間（ mwture ） 。在研究數據處理方法時，闡述了伽瑪信號的特徵，對測量誤差類型進行了統計檢驗；介紹了數字濾波的基本理論、數字濾波方法的概況，並進行了分析；對伽瑪信號數字濾波效果的影響因素及其對測井曲線的影響進行了基本分析；從獲取平穩段真值、地層邊界的檢測與處理兩個方面，建立了數字濾波效果的評價準則（ rvi ， rmse ， sfi ） ，給出了相應的數字濾波方法及效果評價方法；探討了自然伽瑪信號數字濾波器的設計方法，提出了適合自然伽瑪測井的混合濾波方案，探討了混合濾波方案的實現途徑；通過對部分數字濾波方法的定量研究，給出了靈活可選的數字濾波系統構成及實現流程；提出的三種濾波方案，將用於era2000成像測井系統，對自然伽瑪測井數據進行濾波處理。
  9. On this basis, fortran program is written to solve temperature and velocity fields in transformer. by using this program we can calculate total flow, duct flow, mean temperature rise of transformer oil, oil time constant, mean oil temperature rise in each winding - coil, temperature distribution in each winding - coil, and stable / transient state temperature field. so this program has a great use value

    在此基礎上，我們編制了計算自然油導向冷卻的具有餅式線圈變壓器流場和溫度場的fortran程序，程序可以對總油流量，進入各相、各油道的油流量，各線圈內的油流分佈，變壓器的油平均溫升，油的時間常數，各線圈的平均線油溫升，各線圈內的油溫分佈以及各線圈的穩態溫度場、暫態溫度場進行定量模擬，具有較強的實用價值。
  10. The comprehensive ranking of a site or entity depends on the arithmetic mean value of the following parameters : visit rate, average number of days a cyber user visits the site or entity, non - repetitive pages opened and total number of pages opened, average time and number of times a cyber user visits the site or entity

    某網站或實體的整體排名是由以下指標的算術平均值決定的：到達率平均每個網民訪問該網站或實體的天數打開的不重復頁面和整體頁面展開數平均每個網民訪問該網站或實體的時間和訪問次數。
  11. Nevertheless, this does not mean the research on history of the financial thought of the period is of no importance. the chinese scholars " analysis to chinese financial problems under west financial theories and their suggestions on the reform of fiscal institution at that time are of highly academic value

    但這並不意味著這一段財政思想史研究上的無所作為，當時人們運用西方財政理論對中國財政問題所作的分析，對當時的財稅制度改革所發表的種種見解，非常值得我們去整理、研究。
  12. Finally, the subject judgement model is applied as an assessment model of ships collision avoidance, and the mean sj value of sea areas is suggested as index of collision risk degree. at same time a relative membership model of fairway risk is established, which assess the danger degree of all fairways of the dalian port. the evaluation results more tally with the results of simulation

    為對所提出的模擬模型進行檢驗分析，本文還提出了航道危險度的相對隸屬度模型，並以大連港為實例分別對該港的各航道段水域危險度情況進行了評價，所得的結果與模擬結果較為相符，從而證實了本文所提出的模擬模型具有可信性和可行性。
  13. Supported by a case of a classical pioneering enterprise, the article describes the process and experiment of its mis development, under such strategy, and affirms the application value of this strategy. at the mean time, the author believes that it is necessary and valuable to make further research on the mis development strategy of pioneering organizations

    並以一個典型創業型企業為例，介紹了該企業在這種策略組合指導下進行mis開發的過程和應用經驗，所取得的管理效益和經濟效益，肯定了這種開發策略的應用價值和現實意義。
  14. 2 within three thresholds for bilirubin absorbance ( 0. 14 > 0. 2 ( k 0. 25 ), the total, upright, supine, meal and postprandial period were analyzed with the parameters as follows, the percentage time of bilirubin absorbance threshold ( 0. 14, 0. 20 0. 25 ), reflux frequency, long reflux frequency, longest reflux time, maximum, mean and median value of absorbance. 3 the simultaneous changes of gastric ph and bilirubin absorbance value were analyzed to describe the relationship between them

    2計算0 . 14 、 0 . 20和0 . 25三個界值時膽紅素吸收值（ bilirubinabsorbance ， ba ）界值的時間百分比的均值、標準差、中位數、第25 、 75 、 95位數；總、立位、臥位、餐時和餐后等各時段ba界值的時間百分比、反流頻率、長時間反流頻率、最長反流時間以及膽紅素吸收值的最大值、平均值和中位值，以及ph 4的時間百分比，從而描述生理性dgr的發生特點。
  15. In order to real - time detection of netwok anomalies, an algorithm based on steady model is proposed. both weighted mean value and variance statistics method are used to build and update the steady model. furthermore, roc curve method is used to assess performance

    為了實現異常檢測的實時性，提出一種基於穩態模型的流異常檢測演算法，採用加權均值和方差計算相結合的統計學方法對網路流量進行穩態建模和更新，並使用roc曲線進行異常檢測模型的性能評估。
  16. This paper finds out the mean value and variance of load sequence in a period of time based on statistics and then works out the bias ratio of every point in load sequence using corresponding calculation formula and at the same time compares it with threshold value so that " unhealthy data " can be removed and accurate and effective load forecasting can be ensured

    本文利用統計學的方法，求出某段時間內負荷序列中的均值與方差，再利用偏離率的計算公式計算出負荷序列中每一點的偏離率，並與閾值相比較，從而除去「不良數據」 ，為準確有效地進行負荷預測提供了保證。
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