序時平均數 的英文怎麼說
中文拼音 [xùshípíngjūnshǔ]
序時平均數
英文
chronological average-
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。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。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。Abstract : incompatible element nh11 and hybrid stress element 18 were employed to analyze rock burst occurring in coal face 9108 of sanhejian coal mine. compared with the results from ansys, the two optimized fems can execute more accurate numerical simulation in the research of rock burst as well as other rock problems and lessen the errors from inaedquately meshing in huge calculations due to the limitation of labor and computer time. in addition, the criterion of averaged generalized stress rate was proposed and used to determine the site and moment of rock burst. the given conclusion is in accordance with the face of coal face 9108 very well
文摘:利用優化非協調元和雜交元分析了三河尖礦沖擊礦壓，並與ansys程序的計算結果進行了比較.認為優化有限元在沖擊礦壓乃至巖石材料的數值模擬中能給出更為精確的結果，也可減小大型計算中由於人力、機時所限粗分網格產生的誤差.分析中，採用了廣義平均應力率準則來判斷沖擊點位置和沖擊時刻，所得結論與實際情況吻合At the same time, the formulas on reliability, mean time to failure and availability, mean time between failure etc were deduced respectively based on the distribution density function and markov state - transition diagram
同時依據分佈密度函數和馬爾可夫模型的數學理論分別推導了兩種系統的可靠度、平均故障前時間和可用度、平均故障間隔時間等指標的計算公式，為軟體內核程序的開發奠定了理論基礎。To make the test process feasible, compile program are carefully generated to let them be able to execute repeatedly by the microprocessor, and the average current consumed by at89c51 is then measured with a simple current meter
測試時，我們讓微處理器重復執行選定的測試程序，用普通的萬用數字電流表測量微處理器消耗的平均電流。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。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。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Through having done field surveys in the campus of chongqing university, this paper tested classroom indoor and outdoor climate parameters in june, july and september of 2005, it used questionnaire to acquire subjects ’ thermal sense, draft sense and humidity sense in classroom each month, and programmed composition to compute predicted mean vote and compared pmv with the field testing results of mean thermal sensation vote. it is discovered that pmv is overvalued the college student ’ thermal sensation in chongqing. it finds that people in chongqing adapt to the typical summer hot and winter cold sweltering weather
對重慶地區高校教室的現場調查，測試了重慶大學2005年六月、七月和九月教室室內外熱環境參數，通過採用問卷主要掌握了受測對象教室里的冷熱感、氣流感和潮濕感，通過編製程序求得預測平均熱感覺評價pmv的值，比較pmv和問卷調查得到的平均熱感覺mtsv ，發現pmv預測值高估了重慶地區高校學生的熱感覺，這里的人群對重慶這種夏熱冬冷地區比較典型的悶熱氣候具有一定的熱適應性，對現場問卷調查的結果進行分析，得出了室內空氣溫度、氣流速度、相對濕度與人體主觀感覺之間的回歸曲線，發現重慶地區高校學生熱中性時的空氣溫度為25 . 5 ， fanger根據歐美人群調查得到的公式計算出的預測熱感覺為中性時的空氣溫度為25 . 0 ，兩者相差0 . 5 。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。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Designed a program which can use the mean pressure coefficient of jin ’ ao mansion to calculate mean wind load of the whole buildings and local floor. the integral result can apply into the practical design of construction, also can compare with the results of wind tunnel balance test to validate the veracity of this test
通過自編的程序對金奧大廈表面時均風壓系數進行積分計算獲得其整體和局部樓層的平均風荷載，積分計算的結果一方面可以方便地運用於實際的建築結構設計中，另一方面可以與風洞天平測力結果進行比較驗證動態測壓試驗的正確性。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。( 1 ) as a whole, the qualities of the urban human settlements construction in lanzhou becomes better than ever, but the development of the nature subsystem, the construction subsystem, the supporting subsystem and the society subsystem are not in harmony, and the average advance speed of the four subsystems can be described that the supporting subsystem is quicker than the society subsystem, the society subsystem is quicker than construction subsystem and the construction subsystem is quicker than the nature subsystem
利用蘭州市區過去1990 ? 2002年城市建設等方面的統計數據，對13年蘭州城市人居環境建設質量，在時間序列上進行了趨勢評價，並得出了以下一些主要的結論： （ 1 ）蘭州城市人居環境建設質量正向著高級化的方向演替。自然子系統、建築子系統、支撐子系統和社會子系統的發展嚴重的不協調，四大子系統平均提升速度表現為：支撐子系統社會子系統建築子系統自然子系統。Applied the above theory and the dem program trubal, the unilateral compress problems for the regular generated particles with an interstitial fluid are studied, and the macro - strain - stress curves varied with the fluid properties and the velocity of the wall are gotten. then, he unilateral compress problems for the random generated particles are numerically simulated, and the macro - strain - stress curves are obtained. moreover, the numerical simulation results for the dry and moist cases are compared
利用上述理論以及demtrubal程序，研究了存在填隙流體時顆粒規則排列單向壓縮問題，得到了宏觀應力應變曲線隨流體性質、壁的運動速度等的變化規律；並對隨機排列單向壓縮問題進行了數值模擬，得到了宏觀應力應變平均曲線；並對干、濕兩種情況下顆粒的模擬結果進行了對比。Let h be the deviation of the true shape of the free surface from the shape it would hold if the water were distributed in a steady state, then 1 sine. snnaxnnnshxthxthxttfsxkbs using darcy s law and ssqnl, the discharge from the aquifer is given by 0001. xssxsxnnnnsnhqsntfkuhxhhfkuhhxhqfkuhxfsslfkttsk it is easy to get the mean subsurface runoff of this grid bqt. bqtql 626 science in china : series d earth sciences for the aquifer, the continuity equation holds. dsntlqsntdt new subsurface runoff parameterization, a synthetical recharge series is applied to some aquifers with dif - ferent parameters. firstly, the parameter is tested : three aquifers with the same following parameters are used : d 1. 5 m, k 0. 0008 m s, l 100 m, f 0. 34, p 0. 5, three different slopes are considered : 0. 002, 0. 02, 0. 05. fig
在該模型中有三個重要的模型參數的:整個潛水面平均厚度的線性化參數d ，整個潛水面的平均坡度，以及飽和和水力傳導度k .首先考察一下該模型對于坡度的敏感性:取d 1 . 5 m ， k 0 . 0008 m s ， l 100 m ， f 0 . 34 ， p 0 . 5 .取下面三個不同的坡度0 . 002 ， 0 . 02 ， 0 . 05 .圖2 a給出是實驗給定的入滲強度的時間序列，圖2 b給出的是分別選取這三個坡度時該地下徑流機制所產生的不同的地下徑流的情況3 ) a custom filed function module was complied to study the influence of non - dimensional mass flowrate changed with time in stair shape on flow and heat transfer inside rotator - stator cavity with axial inflow and radial outflow. average nusselt number takes on a sharp up - down process when the mass flowrate changes from stabile status as to the following change of flowrate, the average nuselt number changes greatly in the initial stage and then changes gradually
（ 3 ）自編用戶程序模塊，研究在軸向入流、徑向出流的轉-靜盤腔中，無量綱流量隨時間呈階梯型改變對盤腔流動和換熱的影響。當流量從某個穩定狀態改變時，轉盤上的平均努謝爾數會產生一個明顯的上升再降低過程；在每一次流量改變的初始階段，平均努謝爾數存在一個較大幅度的變化。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。分享友人