序時平均法 的英文怎麼說

中文拼音 [xùshípíngjūnfǎ]
序時平均法 英文
chronological average
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 平 : Ⅰ形容詞1 （沒有高低凹凸 不頃斜） flat; level; even; smooth 2 （高度相同; 不相上下） on the same l...
  • 均 : Ⅰ形容詞（均勻） equal; even Ⅱ副詞（都; 全） without exception; all
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  1. And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media

    以土力學模型為基礎，利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播，採用了顯式差分方法（中心差分法和newmark常平均加速度法結合）和透射邊界，通過比較利用幾種差分格式求解的加速度結果，發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用，分別編制了體波（ p波或sv波） 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。
  2. The work of the paper mainly includes : ( 1 ) present a model for measuring the similarity between two hydrological time series. in this model, we adopt an intuitive dimensionality reduction technique for hydrological time series which is called piecewise average approximation ( paa )

    主要工作包括： （ 1 ）提出了適合水文時間序列數據特點的相似性模型，採用簡單直觀的等時間間隔序列分段平均值技術（ paa ）作為水文時間序列降維方法。
  3. According to the least twin multiplication to calculating the sensitivity index in several water production functions. thus, the writer obtains the fitted the value of the sensitivity index and the varied rule. at the same time, the writer puts forward a new method named rag a ( real coding based accelerating genetic algorithm ) and combines raga with dpsa to calculating the best irrigation system under the non - sufficient irrigation of well irrigation rice in sanjiang plain

    根據《隨機水文學》理論中的時間序列分析法，建立了適合三江平原井灌水稻需水量預報的非平穩時序隨機模型；通過分析降雨隨機特性，選定季節性時序隨機模型，建立了適合三江平原井灌水稻降雨預報的月平均降雨模型；根據最小二乘法，計算出幾種常用水分生產函數中的敏感指數及敏感系數，進而得到三江平原適宜採用的水分生產函數漠型及模型中敏感指數的變化規律；本文提出遺傳動態規劃法（ raga ? dp ） ，即採用改進的基於實數編碼的加速遺傳演算法（ realcodingbasedacceleratinggeneticalgorithm ，簡稱raga ）與動態規劃法（ dpsa ）相結合，推求非充分灌溉條件下三江平原井灌水稻的最優灌溉制度。
  4. The yanchang formation is divided, for the first time, into six third - order sequences, each with an average time duration of about 4. 5 ma. the single sequence is composed of deltaic and lacustrine sandstones, siltstones and mudstones. the subaerial and subaqueous distributary channel and channel - mouth bar sandstone reservoirs are well developed mainly in the lowstand and highland systems tracts

    論文在富縣探區首次應用陸相層序地層學的觀點和方法，把延長組劃分為6個三級層序，平均時限4 . 5ma ，各層序由三角洲與湖泊相砂、泥巖沉積組成，主要在低位體系域和高位體系域發育水下（上）分流河道和河口砂壩砂巖儲層
  5. The paper consists of the following 4 parts : major contents of part one include the origin and evolution of geopolitics, while focus is laid on discussing the " marine rights theory " claimed by alfred thayer mahan, the " land rights theory " put forward by halford john mackinder and the " marginal zone theory " proposed by nicholas j. spykman, all of which had exerted far - reaching influences on the u. s. administration in making its realistic diplomatic policies. in part two, the paper expounds the geopolitics strategies respectively adopted by the united states and vietnam in the 1949 - 1954 period

    本文以社會主義市場化進程中的時代課題? ?效率與公平的關系問題為研究對象，以馬克思主義的基本方法為出發點，旨在闡明公平與效率的定位：效率指向經濟學稀缺，公平則指向社會秩序，在馬克思經濟學中反映為生產力與生產關系（及其所決定的上層建築）的相互關系；在西方經濟學中反映為經濟學稀缺約束下的資源配置效率與社會資源平均化程度的關系。
  6. This system adopts cumulatively autoregressive moving average model [ arima ] of time series method and modified model gm ( 1, 1 ) of grey system, makes a local load forecasting modeling through the integration of the above two models and also preprocesses the daily load during the sudden change of climate, thus greatly improving the forecast accuracy. the practical operation indicates that the model is reasonable and easy to operate with complete function

    本系統在經過反復試算后，在演算法上採用了時間序列法的累積式自回歸動平均模型（ arima ）與灰色系統中的gm （ 1 ， 1 ）改進模型，並將兩種模型組合用於該地區負荷預報建模，另外還對氣候急變日負荷進行了預處理，大大提高了預報準確度。
  7. We choose the forest appearance tidiness, representative stands serving as standard plots, 40 stands were set up at qinling, hanzhong, huanghong in shaanxi respectively, measure every tree in the stands, measure the actual increase by the dominance tree, the time series model of individual age and diameter of quercus variabilis was established according to the actual diameter of quercus variabilis population by the fluctuant time series, the comparison of simulation and reality value of the every stand of quercus variabilis population diameter increase through the four models, the average simulation difference within 1. 5 %, the accuracy is 97. 8 % the simulation effect is better

    在陜西的秦嶺、漢中、黃龍地區選擇林相整齊、有代表性的地段作為標準地，設置樣方40個，對各樣方內的林木進行每木檢尺，通過優勢木解析的方法，測得栓皮櫟種群胸徑的實際生長量，運用起伏型時間序列分析，建立了栓皮櫟種群個體年齡與胸徑生長的時間序列模型，四個模型所得的各個樣地栓皮櫟胸徑生長的模擬值與實際值進行比較，其模擬平均誤差都在1 . 5 %以內，平均精度達到97 . 8 % ，模擬效果較好。
  8. The premise to assure qos is to provide sufficient resource to meet demands. we come up with a method to partition the resources of web cluster for each class with its resource demand and priority requirement taken for granted, where system processing time or average access rates is summed up for each class periodically and resource demands is evaluated with stretch factor as performance metric. also the nodes marked in number will be orderly assigned to the classes ordered in priorities, which helps to maintain data locality and improves memory cache hits

    資源滿足需求是實現服務質量保證的前提，為滿足業務類動態的資源需求，我們提出一種支持業務類優先級和資源需求的資源劃分方法，通過按周期對業務類請求處理時間或平均訪問率進行統計，以響應擴展因子為質量指標對業務類預期的資源需求作出評估，採取按主機編號有序地分配給按優先級排序的業務類，減少業務類資源變動和提高主存cache命中率。
  9. Several key techniques of carving and milling machine cnc system are deeply studied they include : the transformation, data rebuild and interface design of huge volume nc program produced by cam ; the algorithm of cubic parametric spline pre _ interpolation and high speed real time interpolation in the cnc system, which. will gain a much higher surface precision and cutting speed ; methodology and algorithm of movement velocity acceleration control on a real time forecast _ and _ prejudge basis is designed. therefore, a smooth movement is insured. the shake and noise problem caused by non _ uniform pules for driving stepping or servo motor is solved by an improving algorithm to generate uniform pules

    同時，本文對基於統一的pc平臺的雕銑機數控系統中的幾項關鍵技術進行了深入的研究，包括： cam生成加工程序的傳送、接收、讀取及其加工鏈表的生成和實時重構；對cam生成的離散數據進行三次參數樣條插值和基於累加弦長的三次參數樣條插補控制，保證加工工件表面的精度和光順性；設計具有「前瞻」功能的自動升降速控制方法，保證加工過程的平穩性；通過脈沖均勻化，有效地解決加工過程中因為脈沖不均勻而引起的震動問題。
  10. From the perspective of minimum transmission losses, an instantaneous reactive power theory for systems with any number of phases and with or without neutral line is developed. under the new definition, each quantity has its own physical meaning, and the zero sequence current can be decomposed into active and reactive components. furthermore, a generalized compensation method for zero sequence current is developed

    從輸電損耗最小的角度出發，提出了任意相無中性線或有中性線系統的瞬時無功功率理論，在新的理論下，每個量都有清晰的物理意義，且能分解出零序電流的有功分量和無功分量，並給出了通用的零序電流補償方法，揭示了瞬時無功功率理論與傳統平均意義下的無功功率理論的聯系及本質區別，從而為研究hvdc - vsc及各種facts裝置的無功功率控制奠定了理論基礎。
  11. A systematic design method of second - order active filter

    關于時點數列序時平均數計算方法的改進
  12. According to the numbers of segmentations, dts has multi scale feature and can reflect different trend similarity of time series under various analyzing frequency. 2 ) an enhanced algorithm, based on dual threshold value, and the conception of sub - series linear are proposed. relative point average error is used to measure the linear degree of sub series, which produced by bottom _ up algorithm

    對應時間序列線性分段數目的不同，序列趨勢距離具有基於時間的多尺度分析特性，可以有效反應不同分析頻率下時間序列的相似程度； 2 ）採用相對點平均殘差衡量bottom _ up演算法劃分的子序列線性度，提齣子序列線性度概念和一種雙誤差閥值改進演算法，大大提高了趨勢序列模型的準確性。
  13. In this thesis we firstly made all kinds of statistics on chinese character stroke information of chinese national standard code for information interchange ( gb2312 - 80 ), such as the average strokes of each chinese character and each character which uses utility frequency as its weight, the average strokes of each character been added weight or not that can be differed from the other characters, the number of chinese characters which begin with each stroke, the times of each stroke in the chinese character set, the chinese characters which have same strokes in the chinese character set, and the frequency of adjacent stroke, etc. according to the statistic, we have devised a new chinese character keyboard input method named " stroke code " by adopting the stroke sequence of hand - written chinese character as its input codes and designed a kind of key arrangement for the method

    論文首先統計了國標二級字庫中漢字筆畫信息的各種數據，這些數據主要包括：漢字的平均筆畫數及按使用頻度加權的平均筆畫數、能與其它字區分開的漢字前若干筆畫的平均數與加權平均數、以各種筆畫起筆的漢字數、各種筆畫在漢字字庫中的出現次數、漢字字庫中筆畫相同的漢字以及漢字字庫中相鄰筆畫的頻度等。根據這些統計數據，我們採用書寫漢字時的筆畫順序作為漢字輸入碼，設計了筆畫碼漢字輸入法和實現該輸入方法的鍵盤。
  14. A modified genetic algorithm ( mga ) framework was developed and applied to the flowshop sequencing problems with objective of minimizing mean total flowtime. to improve the general genetic algorithm routine, two operations were introduced into the framework. firstly, the worst points were filtered off in each generation and replaced with the best individuals found in previous generations ; secondly, the most promising individual was selectively cultivating if a certain number of recent generations have not been improved yet. under conditions of flowshop machine, the initial population generation and crossover function can also be improved when the mga framework is implemented. computational experiments with random samples show that the mga is superior to general genetic algorithm in performance and comparable to special - purpose heuristic algorithms. the mga framework can also be easily extended to other optimizations even though it will be implemented differently in detail

    提出了一個改進遺傳演算法的結構，並且應用於帶有目標是最小平均總流程時間的流水調度排序中.為了改進一般遺傳演算法的程序，兩個新的操作被引進到這個操作中.這兩個操作為： 1 ）過濾操作：過濾掉在每一代中的最壞的個體，用前一代中的最好的個體替代它； 2 ）培育操作：當在一定代數內演算法不改進時，選擇一個培育操作用於培育最有希望的個體.通過大量的隨機產生的問題的例子的計算機實驗顯示出，提出的演算法的性能明顯好於一般遺傳演算法，並且和此問題的最好的專門意義的啟發式演算法相匹配.新的mga框架很容易擴展到其它最優化當中，只是實施的詳細的步驟有所不同
  15. The wind fields and temperature fields data provided by " d files " from 14 surface observation stations around beijing area are used to produce the mean wind fields and the mean temperature fields over beijing area in summer and winter

    用北京及市郊地區共14個地面氣象觀測站的全月數據順序文件「 d文件」提供的風場及溫度資料，採用逐時月平均的方法對北京及周邊地區的冬夏兩季的風場，溫度場特徵進行了研究。
  16. In this paper ， an optimal search strategy by dividing the whole surveillance area into regions is presented so that the optimal search can be adaptively implemented in phased array radar. firstly ， the inherent relationship among average discovering time ， radar resources consumption ， search frame period and target distribution density is studied. secondly ， parameters for the region search are optimized to achieve the optimal search performance inside regions. then ， the optimal search frame period for each region is derived to minimize the average discovering time of targets ， where the constraint of radar time resource and the importance of each region are taken into account. finally ， the adaptability of this search strategy is discussed. only if the optimal parameters for each region are utilized and the beams are scheduled according to the optimal frame period under the radar time constraint ， the optimal distribution and the optimal scanning sequence of beams can be implemented adaptively. thus ， optimal search is adaptively implemented in the whole surveillance area

    本文提出一種分區搜索演算法，實現了相控陣雷達的自適應最優搜索.首先，研究了各區域平均發現一個目標消耗的雷達資源和目標被發現的平均時間同搜索幀周期以及目標強度的關系；然後，研究了在各區域採用兩步搜索演算法的最優參數設計，實現了局部區域的最優搜索；其次，在雷達時間資源有限和區域重要性加權的約束條件下，導出了使目標被發現的平均時間最小的區域最優幀周期；最後，討論了分區搜索演算法的自適應性.只要採用各區域的最優參數，按最優幀周期調度雷達波束，就可以自適應地實現使目標被發現的平均時間最短的波束的最優分佈和掃描順序，即自適應最優搜索
  17. By introducing an oblivious policy and sorting chinese characters in accordance with their dynamic frequencies, the algorithm made important improvements on the average search length of chinese characters, which could better guarantee the strict demand on time of any application driven by the dyanmic statistics of chinese texts

    由於引進了動態遺忘機制以及根據頻率動態調整漢字順序，演算法的平均查找長度成倍縮短，從而能夠更有效地保證涉及大量漢字信息檢索操作的應用對時間性能的要求。
  18. In training process, we use kernel - based fisher discrimination analysis ( kfda ) method to train the input sample vectors. the method has been used in face recognition and has been demonstrated better recognition capability than other methods ( pca, kpca, svm ). we calculate the optimal subspace wopt and project the sample gait sequences to wopt, then get the tracks of the sequences, calculate the track centroid and calculate the exemplar projection centroid of the sequences in the same class, and the exemplar projection centroid represents the class template. to test the class of a gait sequence, we also project the test sequence to the eigenspace, and calculate the track centroid, then calculate the euclidean distance of the test sequence tracking centroid with the sample sequences ’ exemplar projection centroids. and the class which the test sequence belongs to is the one that the sample sequence which the euclidean distance is shortest belongs to

    該方法在人臉識別的研究中已有採用並在同樣測試條件下取得比其他識別方法更好的識別性能。採用kfda方法取得最優特徵空間wopt ，把步態樣本序列映射到wopt中，取得樣本序列在特徵空間中的軌跡，計算軌跡質心，把同類樣本序列的軌跡質心進行平均求得該類的標本投影軌跡質心，作為該類的模板。在識別時，將測試序列也投影到特徵空間中，取得序列軌跡質心，對測試序列軌跡質心與樣本的標本投影軌跡質心計算它們的歐氏距離。
  19. Factors which influence productive time of a working procedure, can be divided into several grades, four grades in this thesis, that is : { absolutely completion, completion, probable completion, unable completion }. corresponding elements of state sort table are adopted, that is four elements state sort table. connection number expression is found by the method of weighted value

    對影響工序作業時間的若干影響因素（ f _ 1 f _ n ） ，可以根據需要將評判結果分為幾個級，比如分為{肯定完成，能完成，可能完成，不能完成}四個，那麼應採用相應元數的態勢排序表，即四元態勢排序表；然後運用加權平均法求出工序作業時間的聯系數。
  20. There are a lot of methods, for example, auto - regression model ( ar ) 、 moving average model ( ma ) 、 auto - regression moving average model and data mining 、 higher - order statistics which has been developed in recent years

    時間序列分析方法也是多種多樣，像傳統的自回歸模型、滑動平均模型、自回歸滑動平均模型以及近年來迅速發展的數據挖掘和高階統計量方法等等。
分享友人
分享到 Line

分享到臉書