時間常數項 的英文怎麼說

中文拼音 [shíjiānchángshǔxiàng]
時間常數項 英文
time constant term
  • 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...
  • 間 : 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...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 項 : Ⅰ名詞1 （頸的後部） nape （of the neck） 2 （款項） sum （of money） 3 [數學] （不用加、減號連接...
  • 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...
  1. To air - condition temperature control system, in this paper, firstly, the mathematical model is established by using the differential equations method. though equations deducing to find the control object, which is the relationship between the rooms " temperature - time constants and control system ' s kinds of performance indexes, elucidate the effects of the big rooms " temperature - time constans to the control system. then combined with the requirements of air - condition craft to the control, it is proposed that the main question needed to be solved under the air - condition control system designing is its quickness

    本文首先針對空調溫度控制系統，建立數學模型，採用微分方程法，通過公式推導，找出空調控制對象? ?房間溫度時間常數與系統各項性能指標的關系，闡明房間溫度時間常數大對控制系統的影響，再結合空調工藝對控制的要求，提出了對空調控制系統的設計應主要解決其快速性問題。
  2. In this dissertation, the data process ( dp ) subsystem and radar control program ( rcp ) subsystem of gbr simulation system have been studied and discussed. the main work and innovation of this dissertation is as follows : ( 1 ) track filter, the basic element of track system, has been researched. we analyze the advantage and disadvantage of common target kinematic model such as constant velocity model, constant acceleration model, noval statistic model

    本文是基於某gbr模擬系統的合作項目中，本人負責的數據處理子系統和雷達控製程序子系統的研究和開發的結果，主要進行的工作和創新有: （ 1 ）基於跟蹤系統最基本的要素-跟蹤濾波，分析了當前常用的微分多項式模型， cv與ca （常速與常加速）模型，時間相關模型， noval統計模型，以及機動目標「當前」統計模型等目標運動模型的優缺點和雷達的觀測誤差。
  3. A method of transforming a search key into an address for the purpose of storing and retrieving items or data. the method is often designed to minimize the search time

    為存儲和檢索數據項或數據，把搜索關鍵字轉換為一個地址的一種方法。該方法常用於減少搜索時間。
  4. Give cost and time data for project tasks, the six sigma black belt should be able to compute the cost of normal and crash schedules and the minimum total cost schedule

    給出項目任務的成本和時間數據， 6西格瑪黑帶應能計算出正常的和緊急加快的生產費用表以及最小的生產總費用表。
  5. Control is often used on forms with controls that have varying lengths of data to present, like windows explorer, whose data panes contain information of varying widths at different times

    控制項常用於一類窗體，這類窗體上的控制項所顯示的數據長度可變，如windows資源管理器，它的數據窗格所包含的信息在不同的時間有不同的寬度。
  6. Such impurities requiring calibration calculation normally use main component as reference and use relative retention time for orientation, such value are to be recorded under each type

    這些需作校正計算的雜質，通常以主成分為參照採用相對保留時間定位，其數值一併載人各品種項下。
  7. One common task would be retrieving the value of an automatically generated identity field or time stamp from the data source. the

    一項常見的任務是從數據源中檢索自動生成的標識欄位或時間戳的值。
  8. In this paper a numerical method for equations of transport and biodegradation in the fractured media is discussed. because the equations consist of terms related to advection, diffusion, biochemical as well as the term of exchange betwen the fracture and the porous media, it is very difficult to find their solution. in order to find more efficient method for solving these equations, several numerical methods for the equations without biochemical terms are discussed first. the numerical results show that the cubic spline method can be used to solve advection flow dominated problem which often occurred in the fractured media. then, the equation with both advection - diffusion term and biochemical term are discussed. the splitting - operator is used to decouple the advection and diffusion terms with biochemical term in the equations. the way to determine the smaller time step for solving fast biochemical terms is introduced through comparing the order of characteristic time of biochemical term with that advection ( diffusion ) term. numerical simulation results show that good agreement between analytical solution and experiment result is attained

    本文討論了含裂隙介質地下水污染物輸運與生物降解非線性方程組數值求解方法.方程含有對流項、擴散項、生長、死亡、吸附、解吸、趨化和孔隙與裂隙介質界面間的交換項的非線性偶合，使演算法十分困難.本文討論了無生化過程時的幾種求解方法，數值結果表明：用三次迎風插值法對常見的對流項占優勢，且場變量有較大梯度的問題較適用.在討論有生化反應過程時，利用對流項與生化反應項的特徵時間量級估算，給出了求生化過程作用子步的時間步長估算辦法.用上述方法所得到的模擬結果與解析解、無化學反應和有化學反應的實測值對比，吻合很好
  9. In this paper, some experiments about the algorithms and decline models above using test performance data of teflon type coat materials gained by the simulated radiation experiments are presented, and some comparative experiments are presented. compare the experimental results with the prediction result of international simple exp model and the actual experiment data among nine years in america. at the same time, do universal compares of experimental results with test data, which are obtained with various models and algorithms and different radiation time

    接著本文通過採用美國teflon型塗層材料較短輻照時間所得試驗數據進行參數估計和建模預測，並把實驗結果和國際通常採用的簡單指數模型的預測結果以及美國9年時間跨度的實際試驗數據進行了比較，同時還對同一種模型以及同一種演算法採用不同輻照時間段對應的試驗數據所得實驗結果進行了多項比較。
  10. This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton

    當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。
  11. It is shown that randomized algorithms can decrease the computational complexity dramatically instead of seeking worst case guarantees. in addition, examples in this paper show that employing randomized algorithms is very efficient and has obvious advantages especially when uncertain interval parameters appear multilinearly or nonlinearly in the characteristic polynomial coefficients

    研究表明，在不考慮最壞情況的意義下，隨機化演算法可以顯著降低計算復雜性，另外，當不確定區間參數以多線性或非線性的方式出現在特徵多項式系數中時，採用隨機化演算法具有明顯的優點並且是非常有效的，文中給出了計算實例。
  12. But it is difficult to determine the productive time of a working procedure, there is uncertainty of it. this uncertainty is random, fuzzy and intermediate uncertainty, which can be dealed by connection number method

    然而在許多情況下，估計項目活動持續時間是非常困難的，項目活動時間具有不確定性，聯系數是用來處理模糊，隨機，中介不確定性的系統理論和方法。
  13. Generally the events of interest are quite rare ( many orders of magnitude slower than the vibrational movements of the atoms ), and therefore direct simulations, tracking every movement of the atoms, would take thousands of years of computer calculations on the fastest present day computer before a single event of interest can be expected to occur, hence the name eon, which is an immeasurable period of time

    某些我們感興趣的現象是非常罕見的（例如一些以極小的數量級速度運動的原子） ，所以用當前最為快速的計算機直接模擬、跟蹤一個可能每天僅僅只能唯一觀察到一次的我們期望它能運動的原子，需要花費成千上萬年的計算機處理時間，所以我們將我們的項目命名為eon ，它是一段不可計量的時間。
  14. Parand tony darugar has been building and architecting high - performance distributed systems for most of his career, often as serial entrepreneur, and recently at a large internet - based business. his interests include web services and service oriented architectures, xml, distributed architectures, and artificial intelligence

    在parand tony darugar的職業生涯中，多數時間在構建和架構高性能分散式系統，他常常是一位連續創業者（ serial entrepreneur ） ，最近他參與了一項大型的基於internet的業務。
  15. The paper is the project named " theory of dynamic precision synchronization traverse and research of realization methods for linear servo dual position loops system ( no - 50075057 ) " as the background, which is supported by national natural science foundation of china drive directly by linear permanent magnet synchronous ac motor, the controlled plant eliminates middle drive parts and avoids the effects of the mechanical transmission chains from rotary motions to linear ones

    本文以國家自然科學基金資助項目《直線伺服雙位置環動態精密同步進給理論和實現方法研究（ no 50075057 ） 》為背景，針對直線同步進給提出了一種新的控制方案：模型參考自適應控制。機床採用永磁直線同步電動機直接驅動，省掉了中間的傳動環節，消除了機械傳動鏈的影響；又因永磁直線同步電動機採用高能永磁體，具有電磁推力強度高、損耗低、電氣時間常數小、響應快等特點。
分享友人
分享到 Line

分享到臉書