遞減系數 的英文怎麼說

中文拼音 [dìjiǎnxìshǔ]
遞減系數 英文
coefficient of reduction
  • 遞 : Ⅰ動詞（傳送;傳遞） hand over; pass; give Ⅱ副詞（順著次序） in the proper order; successively
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 遞減 : （一次比一次減少） decrease progressively [successively]; decrease by degrees; reduce progressively
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Iir filters are a kind of digital filters with recursive structure and are primarily used for high data throughput applications that can tolerance phase distortion and require a sharp cut - off characteristic

    本文討論的iir濾波器是一種遞歸結構的數字濾波器，主要用於能夠容忍相位失真而要求具有良好的衰減特性的高數據處理量的系統中。
  2. The second one : we studied the effect of temperature on performance of lds. it was found that threshold current increase exponentially outpower and slope efficiency decrease parabola and exponentially respectively. coefficient of temperature shift is 0. 24 / k, wheras characteristic temperature also decrease with rise of temperature

    研究了溫度對激光器各參數的影響，隨著溫度的增加，閾值電流呈指數增加，輸出功率和斜率效率分別呈拋物線和指數關系遞減，同時特徵溫度也減少，波長隨溫度的漂移系數為0 . 24nm ，並且總結了一些溫度和結構設計方面的關系。
  3. Fist ly, use mass equivalent method to predigest the original rotor system. secondly, use transfer matrix arithmetic to have finished the relative program to calculate the critical speed of flexible multi - tray rotor bearing system by matlab language. thirdly. finish program the unbalance response using riccati - transfer matrix arithmetic and finity buck arithmetic. fourthly, answer to the high vibration of uncontroled system when cross the critical speed, come out to adopt changing clearance damper bearing to control the viberation

    本文對多柔盤轉子-支承系統的振動現象做了以下初步探索：用質量離散化方法把原轉子系統簡化；採用matlab語言編制了對傳遞矩陣法計算多柔盤轉子-支承系統的臨界轉速；用matlab語言對riccati傳遞矩陣法和有限元法編制了程序計算系統的不平衡響應；並針對其過臨界轉速時振動較大的現象，提出採用變間隙控制油膜剛度和阻尼，從而使原系統的在特定轉速（臨界轉速）的一段范圍內不平衡響應減小；並從被動控制與主動控制兩方面進行數值模擬，取的了較好的控制效果。
  4. This paper studies the spatial distrihution of water vapor press in the mountain areas of chongqing, with the month average data of water vapor press of climatic reorganized data including 34 meteorological observing stations in chongqing and 4 around it from 1971 to 2000 and 7 meteorological sentries in it from 1997 to 1999, and 100mx 100m dem of chongqing. according to the theory of mountain climate and basing on gis, it analysises the influencing factors to water vapor press decreasing coefficients in chongqing, and studies the relations among water vapor press longitude latitude and sea level elevation, and founds the water vapor press spatial distribution model in chongqing, and calculates the spatial distribution of the month average and the year average water vapor press in chongqing, and completes the cartographies of the water vapor press spatial distribution of chongqing

    本文利用重慶地區34個及其周圍4個常規氣象觀測站1971 2000年30年和7個氣象哨1997 1999年3年氣候整編的月平均水汽壓資料，以及重慶地區100m 100mdem數據，對重慶地區山地水汽壓空間分佈進行研究根據山地氣候學原理，利用gis技術，分析重慶地區水汽壓遞減系數的影響因子，研究水汽壓與經度緯度和海拔高度等因子的關系，建立重慶地區水汽壓空間分佈模型，計算重慶市月平均和年平均水汽壓空間分佈，並完成重慶市水汽壓空間分佈的制圖。
  5. Water vapor press decreasing coefficients are different in different time

    水汽壓遞減系數在不同時間是不相同的。
  6. In my first lecture on the economics of fertilization, i examined the concept of diminishing marginal returns and how this is related to the shape of the production function

    在肥料經濟學的第一講中，我闡述了邊際報酬遞減的概念及其與生產函數形狀之間的關系。
  7. Integrated with the correlation between natural and composite decline rates as well as the characteristic of production testing data, the model for natural decline rate is established

    在此基礎上，結合一般油田的生產測試數據特點和自然遞減率與綜合遞減率的關系，建立了自然遞減率多因素分析模型。
  8. The dynamic response of the experiment model is studied by transfer function response, and the natural frequency and vibration mode of the vibration system are measured, the dynamic characteristic is mastered, which provides the experiment test method of dynamic data for the structure design of reinforced concrete and the shock absorber design of the system, especially provides the design rules to vibration control of the machine equipment which are built in the building structure

    用傳遞函數響應方法對實驗模型進行動態響應實驗研究，測得振動系統的固有頻率和振型，掌握振動系統的動態特性，為鋼筋混凝土建築的結構設計和系統減振設計提供動力學的實驗測試方法，尤其給安裝在建築物內機械設備的振動控制提供了設計依據。
  9. Ptc is helping its customers develop and deliver products more quickly and cost - effectively, by dramatically reducing the traditional disconnect associated with different design teams, spread across geographically dispersed locations, working on complex electronics systems design

    通過大量的減少傳統的不同設計組之間的不連通， （通過）在不同的地域之間傳輸數據， ptc將幫助它的用戶更快更有效的工作于復雜電子系統設計的開發和傳遞。
  10. Secondly in enterprise valuation cost method should proceed with book value of the financial statement, regard market value as adjusting orientation and reduce application range of cost method. when income method is adopted, four principles should be paid attention to : a : stage - by - stage income model should be used which is made by early stage income current value added by later stage income increase. b : net profit and net cash flow should be the majority of income volume

    其次為：企業價值評估採用成本法應從財務報表的賬面價值入手、以市場價值為調整目標、減少成本法的應用范圍；採用收益法應以前期收益現值加後期收益額遞增的分階段收益模型，收益額以凈利潤、現金凈流量為主，收益預測以企業未來發展潛力分析為前提的銷售收入預測為主導，折現率堅持不低於無風險報酬率等四項原則，系數以回歸方程的測算為主；市場法中參照物企業選取應以同行業企業為基準、擴大數據來源，注重評估比率可靠性驗證、利用多種比率的配合等。
  11. A correlation was studied out here :, for experiment with sparger 1 # ;, for experiment with sparger 2 #. sparger decreased interfacial heat transfer coefficient, total clotted liquid and steam energy transfer and weakened surface temperature vibration. it also decreased thickness of hot water layer, attenuated steam condensation and shortened the time of balance

    加裝遮流板使實驗初期階段的表面冷凝換熱系數hif降低76 93 ；減少了累計凝結量67以上；降低蒸汽流能量的傳遞，使表面溫度波動顯著降低；減少了熱水層的厚度；減緩了蒸汽凝結的劇烈程度，大大縮短了系統壓力平衡需要的時間。
  12. Based nit the definition of production decline rate, the multifactor analytical model for composite decline rate is developed, which discusses affecting factors stub as the startup well number, water cut, producing fluid thickness, pressure, relative production index well spacing density, skin factor etc

    摘要從產量遞減率定義出發，首先導出了綜合遞減率與開井數、含水、產液厚度、壓力、相對產液指數、井網密度、表皮系數等多因素分析模型。
  13. Especially, when the isocline of x is monotone decreasing in 0 < x < 1, the svstem has no limit cycle and is globally stable ; next, we construct a saddle bifurcation at the boundary equilibrium and a degenerated bogdanov - takens bifurcation at the interior equilibrium by choosing appropriate parameter values in the following two sections, where our work are based on the theory of central manifolds and normal torms. we prove that is a codimention 3 focus - type equilibrium. system ( 6. 1 ) will have two limit cycles at some appropriate bifurcation parameter values, and have homoclinic or double - homoclinic orbits at some other appropriate bifurcation parameter values ; at last, we study the qualitative properties of the system at infinite in the poincare sphere

    因為系統在（ 0 ， 0 ）點處沒有定義，這給研究其在（ 0 ， 0 ）附近的動力學性質帶來了困難，我們應用文獻[ 17 ]中關于研究非線性方程奇點的系列理論和方法，圓滿解決了這一問題，給出了第一象限內當t +或t -時，在全參數狀態下系統的軌線趨于（ 0 ， 0 ）點的所有可能情況，其相圖也得以描繪；並且，系統不存在極限環的幾個充分條件我們也予以列出，當x的等傾線在0 x 1范圍內遞減時，系統不存在極限環，全局漸近穩定；然後，我們以中心流形定理和正規型方法為主要工具，巧妙選擇參數，分別構造了一個余維2的鞍點分岔和一個余維3退化bogdanov - takens分岔，證明了平衡點是余維3的焦點型平衡點，存在參數， m ，的值使得系統（ 6 . 1 ）有兩個極限環，還存在參數， m ，的另外值使得系統（ 6 . 1 ）有同宿軌或雙同宿軌。
  14. Here these stability results do not require a lyapunov function to decrease along trajectories of the system, and we also do not give conditions on continuous portion or discrete portion of the systems respectively, but we can give mixing conditions on them to ensure that it does n ' t increase quickly

    本文所用的lyapunov直接方法不同於以往的常規方法，主要表現在所找的lyapunov函數不再局限於沿系統軌線單調遞減，也不再局限於對離散或連續部分分別設置條件，而是對其離散和連續部分設置混合條件以保證其不能增長太快
  15. Acceding to the theory of crop water requirement, maximum potential evapotranspirations are calculated by applying fao penman - monteith method, and then we obtain the water requirement, water balance and water correction factors ect. of main crops ( spring maize, summer maize, spring wheat, winter wheat, cotton ) and different type grasslands, and the space - time distribution regularities of water requirement of cropland and natural grassland are analysed, the result show : the water requirements of same kind crop in different areas are different, water satified degrees are different to different crops in the same area, and water requirement of same crop are different between years for climatic variation ; the water requirements of main crops are increasing from east to west and from south to north, water satified degrees are decreasing from east to west and from south to north. in growing season, there are deficits in crops water supply in most area, so the irrigation is needed to meet the requirement for crop growing normally

    根據作物需水的理論和方法，採用計算精度較高的faopenman - monteith方法（ 1998 ）計算了半乾旱區最大可能蒸散，並基於此計算五種主要旱地作物（春玉米、夏玉米、春小麥、冬小麥、棉花）和不同類型的天然草地的需水量、水分盈虧、水分訂正系數等，分析了農田和天然草地水分供需的時空分佈規律，結果表明：不同地區同一種作物的需水量是不同的，同一地區對不同作物的水分滿足程度是不同的，而且同一種作物在同一地區隨著氣候的變化需水量也會有一個年際變化；主要作物需水量由東向西，由南向北遞增，正常生長發育的水分保證程度由東向西，由南向北遞減。
  16. Between 1996 and 2005, the land use index of chuzhou showed no trend of monotonic increasing or decreasing, but inclined to fluctuation, which reflected the open and dynamic character of the land use system

    2005年滁州市土地利用指數並沒有呈現出單調遞增或遞減的趨勢，而是呈現出波動的趨勢，這也反映了土地利用系統開放性和動態性的特徵。
  17. It is shown that the optimal cost function will be decreasing if the terminal state of the controller lies in a certain set and the upper bound of the decaying coefficient satisfies some conditions

    指出當控制器的終端狀態處于某集合內且集結衰減系數的上界滿足一定條件時，其最優目標函數遞減。
  18. Through the statistics and analysis of runoff and amount of sand lost in the downstream of weihe in recent years, it is discovered that in the downstream of weihe the magnitude sand season was ahead of the main flood season relatively within the year ; variation tendency of annual runoff and amount of sand lost was identical basically, and the quantity of water and sand at huaxian gauging station was tailing - off continuously from the 1960 to 2005 ; there was direct relation between the situation of rushing or silting deposits and rainfall at this section of the river : the river depositing in the year which is rich rainfall, the eroding in the poor rainfall

    摘要本文通過對近6年渭河下游水沙量數據的統計和分析得出，渭河下遊河段年內多沙期較河流主汛期有所提前；年徑流量和年輸沙量的變化趨勢基本一致，而且自60年代至2005年華縣站的水沙量持續呈遞減趨勢；河流的沖淤情況與該河段的降雨量有著直接的關系，當年平均降雨量小的時候河流以淤積為主，當年平均降雨量大的時候河流以沖蝕為主。
  19. At the same time j2ee platform technologies are discussed deeply, such as j2ee platform technologies, communication technologies, ejb component technologies and so on. the design model based on the mvc frame is applied in the system development, so that the separation between the present logic and the business logic in the application is realized. finally, according to the problems found in the development process, the paper explains particularly the kay technologies in the realization : the uniform naming service is realized by realizing the service locator partten using the value object pattern, all the status data is encapsulated into a serializable object, then transferred among the client, sessionbean and entitybean in order to decrease the potential network traffic caused by reference of entitybean ; in order to improve the performance of data storing and taking, we introduce the facade model to escapsulate the ejbs which delegate the data model

    本論文結合了杭州市財政局的會計人員從業資格管理系統的升級項目，研究了基於j2ee的ejb組件模型的多層分散式體系結構的設計與實現：深入探討了三種分散式處理技術（ rmi ， corba ， com ）的區別，將j2ee平臺的ejb技術與windowsdna體系的com +技術從多個角度進行了比較；詳細闡述了在系統開發過程中j2ee平臺的幾項核心技術（如： j2ee平臺的服務技術、通信技術、 ejb組件技術等）的應用；引入了源於mvc三部件框架的設計模式，實現了應用中表現邏輯與業務邏輯的分離；最後，結合在開發過程中遇到的問題，詳細解釋了開發過程中實現的關鍵點：用servicelocator模式實現了統一的命名服務管理；運用valueobject模式將所有狀態數據包裝成一個可序列化對象vo ，然後在客戶機、 sessionbean與entitybean之間傳遞，減少了使用實體bean造成的潛在網路通信量；以及引入sessionfacade模式，用sessionbean封裝了entitybean ，改善了數據存取的性能。
  20. For the reduced system, the mean square criterion of stochastic melnikov process is derived to give the critical values of the probable onset of chaos and the conclusion is that the critical value turns from increase to decrease as the amplitude of weiner process increases in the interested parameter range

    然後重點討論了平均系統，經過推導得出相應的隨機melnikov過程，用均方值準則導出隨機系統可能產生混沌運動的臨界條件，由此得到了在一定的參數范圍內，隨著weiner過程強度參數值的增大，混沌的臨界激勵幅值先遞減繼而遞增。
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