時間曲線模型 的英文怎麼說

中文拼音 [shíjiānxiànxíng]
時間曲線模型 英文
stock-time curve
  • : 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...
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  • 模型 : 1 (仿製實物) model; pattern 2 (制砂型的工具) mould; pattern3 (模子) model set; mould patter...
  1. The dispersion model, with axial dispersion only was used to describe the liquid flow in the downcomer. the model parameters were fitted by the least - squares method. it was found that the curve of dispersion model fitted the experimental rtd curve well

    本文利用一維軸向擴散對降液管中液體流動進行了數學描述,用域最小二乘法擬合了參數,方程所作與rtd吻合較好。
  2. By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper

    本文結合常州新閘防洪控制工程水工試驗,系統分析了浮箱門在靜水和動水中的穩定性及其影響因素,指出靜水穩性和動水穩性的不同特點;試驗測定了浮箱門動水運行的受力情況,給出並分析了定位過程轉動力的變化過程;根據浮箱門啟閉速度與門體和岸墻之撞擊力大小的關系,選擇合理的動力設備,為設計和工程實踐提供可靠依據;分析浮箱門難以穩定上浮的原因,並給出解決方案。
  3. In order to obtain the most economic benefits, the paper utilized the theory of " homalographic characteristic " and " share alike compensation current characteristic " to build up the best compensation relation for " hour - current " curve applied to transformer substation and for " length - current " curve applied to distribution line

    以獲得最大經濟效益為目標,利用「等面積特性」和「補償電流等分特性」理論。推導了應用於變電站的「?電流」關系中存在的最佳補償關系,以及應用於配電路的「長度?電流」關系中存在的最佳補償關系,及補償后的經濟效益計算
  4. In this paper, thermal evolution history of organic matter of the source rocks and hydrocarbon generation history have been researched by tti method, hydrocarbon migration direction and migration times were probed combining with the area structure development feature ; distribution pattern of the main reservoir intervals on lateral and longitudinal have been predicted by researching on development feature and control factors of the reservoir intervals, the actions of reservoir conditions in hydrocarbon accumulation and bearing also were probed combining with pore evolution feature ; the micro - pore feature of regional cap and direct seal in carboniferous - lower triassic in this area have been determined with micro - capillary pressure curve and intrusive mercury curve ; the prospecting districts have been pointed out combining with the hydro - geologic feature, the potential reservoirs were classified according to trap types in this area, the author attempt to evaluate on the hydrocarbon - bearing condition in the str ata of carboniferous ~ lower triassic from hydrocarbon generation and migration reservoir condition, reserved condition etc, and predict the reservoir types and hydrocarbon - bearing patterns combining with the structure evolution. based on above, the author point out that the central block of chenghu - tuditang synclinorium and the southern block of dangyang synclinorium are the advantageous regions for exploration

    本文用tti方法研究了烴源巖有機質的熱演化史和油氣生成史,並結合區內構造發育特徵,探討油氣在區域上的運移方向和在上的運移期次;通過對儲集層段的發育特徵和控制因素的研究,預測了本區主要的儲集層段在橫向上和縱向上的分佈規律,並結合孔隙演化特徵,探討儲集條件在油氣聚集成藏中的作用;利用微毛細管壓力法和壓汞法,對石炭系?下三疊統的區域蓋層和直接蓋層的微孔隙特徵進行了定量評價,並結合水文地質分佈特徵,指出有利於油氣保存的地區;根據區內存在的各種圈閉類,對可能存在的油氣藏進行了分類,並試圖從油氣的生成與運移、儲集條件、保存條件等方面,動態地綜合評價石炭系?下三疊統油氣成藏條件,並結合構造演化特徵,預測其油氣藏類和成藏式。
  5. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直感應電機進行了深入細致研究,內容包括: ( 1 )本文採用有限長行波面電流作用於有限長鐵芯上的,引用了氣隙磁場一維解,研究了單層繞組磁場,奇數極半填槽雙層繞組在採用整距和短距磁場的分析、比較,簡單介紹了二維解; ( 2 )用有限元軟體ansoft對大圓環直感應電機空載氣隙磁場進行了靜態分析,並分析了結果; ( 3 )用軟體進行了額定電壓下的瞬態分析,得到了轉矩,位移,轉速隨變化圖,利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較,採用等效電路法計算了堵轉的最大電磁力並做實驗進行了驗證,由實驗測得了三相電流波形,並與計算結果進行了比較,對其不對稱性進行了定性分析。
  6. A mathematical model for gear shaping was presented for machining of externally meshed non - circular gears with shaping procedure in terms of the positional relationship between the tool ( cutter ) and gear ' s pitch curve

    摘要根據范成法加工外嚙合非圓齒輪刀具和齒輪節的位置關系,提出了插齒加工的數學
  7. Abstract : determined the power - time curves of the promoter bacteria of ganoderma lucidum for e. coli, using 2277 thermal activity moniter, a new experimental model of promoter bacteria growth were established. the growth rate constant and heat output at different concentration of ganoderma lucidum have been calculated. from - c and q - c curves the optimum concentration has also been established

    文摘:用熱活性檢測儀測定了天然藥物靈芝對大腸桿菌起促菌作用的熱功率-,並根據建立了細菌生長的新的實驗,按新計算了促菌作用下的生長速率常數,發熱量及最佳促菌濃度。
  8. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求,選用速度超調量和過渡作為參數優化性能指標.將該指標用糊隸屬度函數歸一化,再加權平均形成系統優化的目標函數.採用計算機數值計算方法,通過擬獲得系統對應參數的動態響應及其性能指標.最後以工程設計的參數為搜索范圍,以速度調節器和電流調節器的參數為染色體中的基因,通過遺傳演算法在搜索范圍中優化這些基因,獲得優化解.實驗結果表明,所設計的參數能使系統性能指標有顯著提高
  9. Then some optimal models of water supply networks are enumerated and some factors which can influence the optimal results are analyzed such as the efficiency of pump station, the temporal value of fund, the curve of water consumption and the coefficient of water supply energy and so on

    接著,列舉給水管網優化設計的數學,並分析影響目標函數優化結果的各種因素,例如泵站效率、資金效率、用水量變化、供水能量變化系數等。
  10. Find the law of the influence from the injection pressure to the filling time and the cavity pressure and make certain of the best filling time, injection time and injection pressure. though the analysis of the flowing velocity and pressure spread of the key position element in the injection parts in different gate position, we forecast the injection parts quality and the possibility injection flaw and its position, optimize the gate position. in this paper, though the research of analogue of the runner system of metal - powder injection molding and the process of injection molding, we get the law of how the injection parameter influence the injection process

    在相同的注射條件下,通過分析喂料在不同直徑和長度流道中的流動規律,得到了喂料在流道中的速度場、壓力場和溫度場,找到了流道長徑比的合理取值范圍,並得出通過改變流道設計可實現對現有設備資源充分利用的結論;給出了不同注射壓力下,腔壓力與充關系和喂料熔體平均充填速度與充關系的,得到了注射壓力對充填腔壓力的影響規律,確定了最佳的充、注射和注射壓力;通過分析採用不同位置澆口注射注射件關鍵位置單元的流動速度和壓力分佈,預測了注射件的成形質量,或可能產生的注射缺陷及位置,優化了澆口設置。
  11. The probability density function of net rainfall relative errors, flood peak discharge relative errors and the time error of the forecasted flood peak are calculated by the model developed

    通過建立洪水預報誤差分佈的最大摘,計算出9座典水庫洪水預報的凈雨相對誤差、洪峰流量相對誤差和峰現預報誤差的概率密度函數,並將其概率密度函數與正態分佈進行比較。
  12. Using vogel ' s wear index as the rail side wear index, the paper analyzes the side wear variations of rail head when the parameters in the wheel / rail system vary, analyzes the influences of track irregularity on rail uneven wear on gauge corner emphatically. this paper analyzes the rail side wear dates measured by track division of shan hai guan since 1990, then gains the relationship between side wear and traffic volume and sums up the characteristics and regularities in the formation and development of side wear. in the end, some measures for regarding the side wear on curves are put forward

    從輪軌摩擦、輪軌接觸幾何關系、輪軌接觸應力和輪軌蠕滑等方面對鋼軌側面磨耗機理進行了探討,從軌道幾何參數、機車車輛運營條件等方面對鋼軌側面磨耗的影響因素進行了重點分析和總結;應用輪軌系統動力學,建立了輪軌空耦合振動,採用vogel側磨指數作為鋼軌側磨指標,系統分析了輪軌參數變化的情況下,軌頭側面磨耗的變化規律,重點分析了軌道不平順對鋼軌不均勻側磨的影響;對山海關工務段1990年以後現場測得的鋼軌側磨數據進行了分析,通過擬合得到了鋼軌側磨量與運量的關系,並總結了上股鋼軌側面磨耗的特徵和發生、發展規律;最後提出了一些減緩鋼軌側面磨耗的措施。
  13. Using lysozyme as a model, the effect of static magnetic field on me activity of lysozyme was studied using information provided by impedance response, two response models were first time proposed, which contained the parameters of magnetic field intensity and the magnetization time of lysozyme, respectively

    利用阻抗響應提供的信息,以溶菌酶為代表酶,研究了靜磁場對酶活性的影響。首次提出了包含磁化和磁場強度變量的響應
  14. The paper formulates the dynamic analyses of hydraulic operating mechanism in large space, established mathematical model, presents methods of differential equation system, and corrects its parameters concerned in process of solution. after the unloaded characteristics calculation and test under real condition are developed for type lw - 252 breaker equipped with hydraulic operating mechanism, the time - displacement cures and the velocity - displacement cures are obtained

    本文對液壓機構的速度分析,用了大量的篇幅,建立了數學,給出了其方程組的求解方法,並對求解過程中所涉及的系數給予修正,在此基礎上對本課題研製的配液壓機構lw - 252斷路器進行了實際條件下的空載特性計算及實驗研究,獲得了斷路器的? ?位移和速度? ?位移
  15. In this paper, subjects mainly focused are as follows : to meet with the requirement of forward business and the establishment of mid - long term generation planning of hydroelectric plant, the yearly runoff and the monthly runoff are studied in this paper, providing many kinds models that suited to min - long term runoff forecast, including the time series analysis, the nearest neighbor bootstrap regressive model, the grey topological model, recession curve model, threshold auto regression, mean generating function, and ann model etc. the forecast result proves that these models are useful

    本文從以下幾方面進行了較為深入的研究: ( 1 )為了滿足水電廠的期貨交易及編制水電站中長期發電計劃的需要,本文對年、月徑流預測進行了研究,提出了徑流中長期預測,包括:序列、最近鄰抽樣回歸、灰色拓撲預測、退水、門限自回歸、均生函數及神經網路等,從預測成果來看,效果較好。
  16. Through approximating the deformation space by using curve and surface offset techniques, we obtain a unified space deformation model. thus the sampling problem is solve naturally at the same time, we provide a unified kernel for the implementation of different space deformation models

    通過對面控制變形中的變形空進行等距逼近的方法,我們實現了一個一維、二維、三維控制手段的統一空變形,這種統一不但自然地解決了面控制變形中的采樣問題,同為實現各種空變形提供了一個統一的數學
  17. Then the bulging model of hemisphere and rectangular box were built and simulated on const strain forming to research the thickness distribution

    建立半球形和盒形件的有限元,進行等應變速率脹形的擬,得到壓力-
  18. Through simulation and calculating the four models, the influence on proportion coefficient, integral time constant, derivative time constant and partial feedback coefficient for system performance is analyzed. the ideal reference value of every parameters and step respond curves are given. the simulation result may be used as reference for making analogue controller or digital controller

    通過對這四種擬研究,分析了各中比例系數、積分常數,微分常數及局部反饋系數對系統性能的影響,並給出了各參數較為理想的參考值及階躍響應擬結果對製作擬控制器及數字控制器有一定的借鑒作用。
  19. This paper concerns the seismic energy of base isolation and the seismic response of mr damper base isolation. the hysteretic differential bouc - wen model is adopted in order to take into account the non - linear behaviour of the base isolation, the superstructure is equivalent linear model. after the non - linear response of building can be calculated in the seismic, the energy analysis is carried out by energy equation

    對隔震層採用bouc - wen,上部結構採用層剪切,利用狀態空迭代法,對基礎隔震結構進行了多質點的彈塑性程分析,並根據此結果,利用能量方程,求得隔震結構的各項能量,並繪制了各能量的
  20. A model test was designed to simulate the consolidation process of warping soil, the validity of theoretical equation and the solution methods presented in this study. actual measurements for excess pore - pressure, void ratio and settlement - time curves all showed good agreement with the corresponding computed values

    將理論計算的超孔隙水壓力、孔隙比、沉降-和根據實測數據計算的這些量進行比較分析,說明文中建立的滲壓作用下的有限應變固結理論及求解方法的合理性。
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