rate variance 中文意思是什麼
rate variance
解釋
比率差異-
We will show that not any mean of the revenue rates of the industrial indexes is significantly beyond value zero at confident level 0. 90. moreover the mean of the revenue rate of sse 30 index is negative ( though not significant ). and the fact of " the heritage of variance " appears congruous to the feature of industries represented by the corresponding indexes
第二章，通過分析上海股市各分類指數的收益率序列的特徵，得出結論如下：各序列都非正態，有自相關性和異方差存在，相對適宜用garch （ 1 ， 1 ）來擬合；除了上證商業（ 1b0002 ） ，各分類指數收益率的均值在85的置信度下都不顯著地異於0 ，而上證30 （ 1b0007 ）的收益率竟小於0 ；在各分類指數中， 」波動繼承性」的結果和各分類指數對應行業的特徵是相關的。 -
The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed
較好地解決多阻尼比反應譜擬合問題；本文方法通過一次運行就能獲得一組具有集系特性的地震動，在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢，產生的人造波或人造波集系可滿足工程抗震設計需要；在遺傳演算法中，交叉概率和變異概率是影響收斂速度的重要參數，本文採用的改進自適應交叉概率和變異概率，可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率，以保證演算法始終以較好的速度向pareto最優解集逼近。 -
On the other hand, the moment, the second moment and variance of the present value random variables about some life annuities and annuities with random interest rate are gotten
另一方面討論了隨機利率下的一些離散年金、連續年金和連續生存年金現值隨機變量的一階和二階原點矩及其方差。 -
Principal components analysis showed that the first four principal components variance accumulation contribution rate amounts to 89. 53 %, which reflected most of the variance information as listed characters above
通徑分析結果顯示，直接通徑系數大小排序，產量因素性狀依次為單株成鈴單鈴子棉重子指衣分；纖維品質性狀依次為紡紗均勻性指數麥克隆值整齊度伸長率比強度2 . 5 %跨長。 -
According to the comparison result, the variance analysis will not be applicable when the allowance range has to be set flexibly according to specific operation requirements although it can achieve a high rate of fault detection. for example, when the allowance range of some particular component gets bigger, the variance analysis could not precisely define the new judgment boundary
比較后發現，方差特徵分析法雖然可以達到很高的故障檢測率，但不適用於元件容差需根據具體要求靈活設定的情況，例如當具體情況中某個元件的容差范圍變大時，用方差分析法卻不能準確地定出新的判斷界限。 -
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。 -
Some robust stability conditions are derived. ( 4 ) a class of dual - rate input - output predictive model containing time delays is established. a new dual - rate predictive control algorithm for the time - delay system is presented, which makes up the shortcoming of multi - rate weighted minimum - variance control for time - delays system, and has solved the influence of time delays on the multi - rate system
針對輸入更新速率比輸出采樣速率慢的雙速率采樣系統，建立了帶有時滯的輸入輸出預測模型，給出了時滯雙速率采樣預測控制演算法，彌補了已有文獻中時滯多速率采樣加權最小方差控制的不足，解決了時滯對多速率采樣系統帶來的影響 -
In this paper, optic gyro is viewed as the object of investigation and several aspects is investigated as follows. two important indexes - bias instability and scale factor were measured and investigated, including bias, its repetitiveness, temperature sensitivity, random walk coefficient and scale factor, its nonlinearity, asymmetry, repetitiveness. we make use of the allan variance method to separate the noise factors which affect the performance of the optic gyro, such as the angle random walk, bias instability, rate random walk, rate ramp, quantization noise, markov noise and sinusoidal noise
本文以光學陀螺為研究對象，開展了以下幾方面的研究工作：本文對光學陀螺性能的兩個重要指標?標度因數和零偏穩定性進行了較為詳細的研究，其中包括陀螺的零偏b _ 0 、零偏重復性b _ r 、零偏溫度靈敏度b _ t 、隨機遊走系數rwc和標度因數k 、標度因數的非線性k _ n 、標度因數不對稱性k _ h 、標度因數重復性k _ r等等。 -
Experimental process shows that variance of underwater distributary channel and declining rate of lake plane are closely related to moving intension of motive soleplate
實驗過程顯示，水下分流河道的變遷與湖平面的下降速率及活動底板的運動強度密切相關。 -
Following, making development study from the three directions : the first one is how to reduce calculation when to use markowitz model. this text has improved the efficient frontier of markowitz model utilizing free risk assets, and reduced calculation about revenue rates " co - variance matrix utilizing single or multiple factors, and so on. the second one is to add thinking factors about, such as transaction fee, fund limitation, lowest transaction unit ' s limitation, risk measures and exchange rate risk of international portfolio securities, so as to make markowitz model closer to our country ' s practice
接著，分三今方向對markowitz模型進行了拓展研究：第一個方向是運用markowitz模型時如何減少計算量，本文利用無風險資產來改進markowitz模型的有效邊界，利用單因子或多因子模型來減少收益率協方差的計算量等等；第二個方向是增加考慮因素，諸如交易費用、資金限制、最小交易單位限制，風險測度和國際組合證券的匯率風險，使markowitz模型更貼近我國的實際；第三個方向是對markowitz模型進行動態拓展研究，提出了將證券收益率看成是隨機序列時的投資決策模型，深入研究了m ? v有效邊界隨資產品種數增加而發生的漂移，並用解析方法和幾何圖形描述了漂移的軌跡和方向。 -
An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process
飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力 -
The result indicates that risk preference coefficient with short sales allowed reflects the investor ' s expected rate of return and the variance within the entire interval
計算結果表明，風險偏好系數在整個取值范圍內都能夠較好地反映投資者對收益和風險的選擇態度，而且，含無風險資產的借貸拓展了投資機會空間。 -
A real - time estimation of a prior variance - covariance of gps observations is developed for the ( near ) instantaneous ambiguity resolution for short - baselines, which improves the stochastic model of the observations, and then the success rate and the reliability of ambiguity resolution
針對短基線模糊度的快速解算，提出了一種實時估計觀測值方差-協方差矩陣的方法，改進了觀測值的統計模型。算例顯示這種方法能提高模糊度瞬時解算的成功率。 -
( 4 ) the results of qtl mapping indicated that the inheritance of yield traits was very complex, the explanation as follows : additive effects except for sterile spikelet number per spike ( ssns ), qtls of additive effects were tested for all other traits, with 10 qtls for 1000 grain weight ( kgw ). the large variance of the effect values and the contribution rate of qtls indicated that the effects are difference for different qtls
14 。 （ 4 ）通過對產量性狀qtls作圖，發現產量性狀的遺傳非常復雜，可以從4個方面說明：加性效應除不孕小穗數外，各性狀均檢測到了表現加性效應的qtls 。其中，在各環境聯合分析下，檢測到了10個千粒重qtls ，各qtls的加性效應值和對群體變異的貢獻率也存在很大差異，說明不同的qtls不是等效的。 -
Fast algorithm of dynamic approximate entropy and its application in heart rate variance analysis
動態近似熵快速演算法在心率變異研究中的應用 -
The third chapter " essay of emh on chinese stock market " tested the hypotheses for the emh on chinese stock market, presented that stock price and return rate variance and voiatiiity are not stable. the chapter provided some evidence for the non - - normai
第二章分析了有效市場理論產生的背景，就有效市場理論成立的基本假設進行了檢驗，提出股票價格收益是不穩定的隨機序列，收益分佈不是正態分佈，股票價格收益表現出非性，序列自相關性，異方差性。 -
The tests rational speculative bubbles in usa / jpy exchange rate in 1990 ~ 1998 with variance bound test, and adopts two sets of variance equalities to exclude the joint hypothesis of bubbles, irrational expectations and model specification
摘要採用方差邊界法檢驗上美元日元匯率在1990年至1998年間的理性投機泡沫，並用兩組不同的方差不等式排除了泡沫、非理性預期及模型設定的聯合假設。 -
By utilizing the main advantages of orthonormalization and power conservation from hilbert transformation, it is found that bit error rate is close to that of dcsk system, but transmission speed is one time higher than that of dcsk system, and the system ' s output variance is effectively reduced
基於qpsk的思想，引入qcsk調制方式，利用hilbert變換對正交且能量守恆的特性，有效減小了系統輸出的方差，較dcsk系統，傳輸速率提高一倍，系統誤比特率與dcsk系統相近。 -
In discrete condition, considering two cases of independent identical distribution and dependent distribution, we gave the moment, the second moment and variance, in continuous condition, models of the random rate of interest were established respectively by gauss process, wiener process or o - u process
對于離散型情況，考慮了獨立同分佈和非獨立兩種情形，分別給出了給付現值的一、二階矩和方差。 -
Moreover, the special expression of the moment, the second moment and variance with de moivre ' s death rate were given. finally, considering abrupt event ' s effect on interest, we established the models of the random rate of interest jointly by gauss process and poisson process, wiener process and poisson process or o - u process and poisson process, also gave the moment, the second moment and variance of the payable present value under the three cases. moreover giving the special expression of the moment, the second moment and variance with de moivre ' s death rate
對于連續型情況，隨機利率分別採用gauss過程、 wiener過程和o - u過程建模，分別給出了給付現值的一、二階矩和方差，並在demoivre死亡律假設下得到了矩的簡潔表達式；考慮到突發事件對利率的影響，又對隨機利率採用gauss過程、 wiener過程和o - u過程分別與poisson過程聯合建模，分別給出了給付現值的一、二階矩和方差，並在demoivre死亡律假設下得到了矩的簡潔表達式。
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