equivalent base 中文意思是什麼

equivalent base 解釋
等價基
  • equivalent : adj 1 相當的，相同的，同等的。2 【化學】等價的，當量的；【數學】等價的；等量的；等勢的；【物理學...
  • base : n 1 基底，基，根基，底座；底層，底子；（紀念碑等的）基址；（山）麓。2 【軍事】基地，根據地。3 根...
  1. So this base isolation technique has profound prospects. unfortunately there exist definite difficulties in the calculation because of the nonlinear of the base friction force. now, both the equivalent damping method and the numerical calculatin of the vibration response of the base - isolated buildings are frequently used in the calculation of the seismic response of the base - isolated building. however both of them have certain drawbacks. in this paper, the response of the building with base - isolation system is derived by the method of fourier expansion for the friction force and the earthquake response. at the same time, the sliding vibration character of inertia of a single mass structure and the sliding vibration response of a muti - mass structure are discussed. the stable condition of the sliding base isolation system of a structure is given. in the end, two circes of base fixation and base sliding are analyzed by adopting ansys

    本文利用對摩擦力和地震響應進行付氏級數展開的方法導出了基底具有摩擦隔震系統的地震反應。同時，文中從研究單質點結構的滑動振動慣性力入手，進而對多質點結構體系滑動振動反應進行探討，分別給出了結構滑動隔震的自身穩定條件。最後，本文利用ansys對基礎固定和基礎滑移隔震兩種工況進行了動力模擬模擬分析，進一步證實了基礎滑移隔規律。
  2. To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering

    為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議
  3. Abstract : according to the base flow separation results from hydrographs in many watershed, the best regression equation expressing the relationship between annual precipitation infiltration coefficient and the weight of different strata area to total area of the watershed is established. the equation can be used to calculate the precipitation infiltration recharge for different ground water basins in which the strata distribution and the precipitation are given. the precipitation recharge is equivalent to the ground water recharge in some mountainous area where the exploitation of ground water resources are far from being sufficient

    文摘:降水入滲補給系數與地層相關分析的目的，是為推求山丘區降水入滲補給量.魯中山丘區是由各種不同地層出露組成的山丘區域.在多個水文流域基流分割基礎上，建立流域年均降水入滲補給系數與各種地層出露面積占流域總面積權重間的最佳回歸方程，利用該回歸方程和地層分佈及降水量推算不同地下水流域的降水入滲補給量.在地下水開發利用不高的山丘區，降水入滲補給量即為地下水補給量
  4. St. petersburg - - if the playoffs are the baseball equivalent to final exams, then gary sheffield is in the process of taking a crash course at first base

    假如季后賽是棒球里的期末考.那雨刷伯現在就像在上一壘守備的速成班
  5. This method is also valid for identifying the circuit and branch defect of first group spatial linkages based on the equivalent of circuit properties of the first group spatial linkages and its equivalent sphere four - bar linkage base on the property of the solutions of quartic equation, the conclusion that the number and order of branch between two adjacent stationary positions of the input link are derived. then, the new method to identify circuits of spatial single - loop linkages with four closures is presented. all types of the manner on which the branches coalesce at the stationary positions of the input link are obtained and the procedures to determine the type automatically are developed

    基於一元四次方程解的性質，得到了在輸入構件兩個相鄰瞬時靜止位置之間機構的分支的數目和大小順序不變的結論，進而提出了識別具有四個封閉形的空間單環機構迴路的新方法一一死點法，綜合出了輸入構件位於瞬時靜止位置時機構分支結合情況的所有類型及其自動判別方法，研究了由所有結合的分支信息自動生成迴路的演算法，首次解決了此類機構迴路與迴路缺陷的自動識別。
  6. This paper discuss the map process using the class equivalent class deeply and program to implement the three phases process. secondly, we introduce the principle and flow of the tuple space search base on the detail explaining of tuple space

    接著本文在深入闡述tuplespace概念的基礎上介紹了元空間演算法的原理和演算法流程，該演算法是目前適應于大規模規則庫且支持快速更新的多域報文分類演算法。
  7. Method converts a byte array into an equivalent string representation encoded with base 64 digits

    方法將位元組數組轉換為使用64進制數字編碼的等效字元串表示形式。
  8. Converts a subset of an 8 - bit unsigned integer array to an equivalent subset of a unicode character array encoded with base 64 digits

    將8位無符號整數數組的子集轉換為用base 64數字編碼的unicode字元數組的等價子集。
  9. The retaining wall reclining on the slight slope built on soft foundation is usually used in protecting the shore of river, the contradiction between the lack of impartiality in stress of the base and the small stress allowed by the foundation as well as the lack of stabilization of the breast wall is a hard nut to crack in the engineering. in the paper, a tenon - base is added under the base of the retaining wall, on the study of the choice of the parameters and formulas used in calculation and the research of theory used in calculation, method used to deal with the load, etc, the writer gives a way to crack the nut mentioned above paragraphs and presents a qualitative and quantitative analysis about them, such as the equivalent inner friction - angle ( d ) and the passive press of the clay ( ep ), etc. in the end of the paper, using modern optimization method, a design of the retaining wall reclining on the slight slope built on soft foundation is done, the result is economical, and accords with the fact

    軟基上的仰斜式擋土墻在水利工程河道護岸中經常遇到，仰斜式擋土墻基底偏心應力較大和軟基土地基容許承載力偏小的矛盾以及擋土墻抗滑穩定不足是工程中難以解決的難題。本文在對仰斜式擋土墻設計中有關計算參數的選擇、公式的選用應該注意的問題進行了研究，對河道護岸軟基礎上的仰斜式擋土墻採用凸榫基礎處理的方法，就其計算理論、設計驗算中各荷載的具體處理方法進行了較為細致的研究，提出了解決軟基礎上的水工仰斜式擋土墻難以解決的難題的方法，並對有水情況下粘土等效內摩擦角_ d 、凸榫被動土壓力e _ p等在計算中的取值提出了定性和定量的分析。最後利用現代優化方法對軟基礎上的水工仰斜式擋土墻進行了結構優化設計，得出了符合實際的結果，與其它重力式擋土墻形式進行比較，取得了明顯的經濟效益。
  10. Hence analysis and design of nonlinear sampled - data systems has been, in recent years, a subject of growing interest in the international community of control research. when a continuous - time plant is controlled using a digitally implemented controller, it is often faced that a continuous - time plant is transformed into its equivalent discrete - time model. a digital controller is usually designed on the base of approximate discrete - time models of the continuous - time nonlinear systems because it is difficult to obtain the closed form of the exact discrete - time model for nonlinear control systems

    利用計算機等一類離散控制裝置來控制連續時間的受控對象時，都會遇到把連續時間系統化為等價的離散時間系統的問題，通過采樣器和保持器來實現離散時間的采樣控制，對于非線性連續受控系統，由於連續系統的時間離散化后一般得不到其等價的精確離散化模型表示的有限形式，實際上由其近似離散化模型代替來設計控制器，而近似會引起信號失真，那麼基於近似離散化模型上設計的采樣控制器，它是否同樣對原連續受控系統有效
  11. The existing methods of structure design of concrete pavement with lean concrete base are analyzed, proving that the equivalent stiffness method is proper for calculating load stress but not for thermal stress

    對貧混凝土基層混凝土路面現有結構設計方法的應力計算進行了分析，發現等剛度法用於雙層板路面的荷載應力計算是可行的，但用於溫度應力計算會引起較大的誤差。
  12. The base of ehtv calculation is analyzing the dynamic heat transfer to equivalent temperature difference solar factor of windows, for the shading of windows it used external shading multiplier

    Ehtv簡化計算的基礎是將這些動態熱作用分解為等效溫差、標準窗太陽輻射得熱等參數，而且系統地提出外遮陽系數，簡化了建築遮陽對外窗太陽輻射得熱的計算方法。
  13. Which encodes binary data as base 64 digits, to an equivalent 8 - bit unsigned integer array

    （它將二進制數據編碼為base 64數字）轉換成等效的8位無符號整數數組。
  14. The analysis in this paper have been verified by experiment firstly, the structure and mechanical characteristics of sliding - plug door are described in this paper. secondly, on the base of the study of the work condition and limited load, the dynamic load - time curve is created. and then the finite element model of sliding - plug door is built by using material equivalent

    本文首先總結和探討了塞拉門的結構特點和力學特性；然後探討了塞拉門的極限工況，即列車交會壓力波的作用形式，建立了簡化的作用於塞拉門上的動力學載荷曲線；其次研究了復雜形狀復合材料層合板結構的建模方法，採用物理等效方式減小了計算規模，建立了復合材料門板的有限元模型，並對各種設定的載荷形式進行了數值模擬。
  15. 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模型，上部結構採用層間剪切模型，利用狀態空間迭代法，對基礎隔震結構進行了多質點的彈塑性時程分析，並根據此結果，利用能量方程，求得隔震結構的各項能量，並繪制了各能量的時程曲線。
  16. The moment method is used to calculate the rcs of three - dimensional targets in this paper. these targets include conducting targets, dielectric targets and coat targets. triangular patches are used to model the surface of the target, then electric field integral equation ( efie ) and magnetic field integral equation ( mfie ) are built which satisfy the boundary conditions. the rwg vector base functions are used to denote equivalent electric current and magnetic current on the surface of the target. finally use the galerkin method ( rwg vector base functions are basis function and test function ) to transform integral equations into matrix equation. when obtain the equivalent electric current and magnetic current, we can calculate the scattering field and the rcs of the target

    本文利用矩量法計算了三維導體目標、介質目標、塗層目標的雷達散射截面。首先採用三角形面元對物體表面幾何形狀進行模擬，然後建立滿足邊界條件的電場積分方程（ efie ）和磁場積分方程（ mfie ） ，將物體表面的等效電磁流用rwg矢量基函數表示，最後利用伽略金法（ rwg矢量基函數既作為基函數又作為檢驗函數）將電磁場積分方程轉化為矩陣方程求解未知電磁流系數，得到了表面的等效電磁流后，可以計算散射場和目標的雷達散射截面。
  17. Equivalent base shear method

    根據地震反應譜理論
  18. Its trunk near the base exceeded 60 cm in diameter and towered more than 15 m high, which was equivalent to an eight - storeyed - high building

    植物底部直徑超過六十厘米而高度逾十五米相當于建築物八層樓的高度。
  19. The ratio of story shear rigidity as well as the equivalent lateral rigidity ratio of story above the transfer story to the story under the transfer story should be designed properly to avoid the transfer story becoming weak story, thus the shear walls and the columns in the large base will not yield before the elements above the transfer story ; ( 2 ) the translation - torsion coupled effects and the vibration in the plane should be considered in analysis of structure with large base and muti - towers

    轉換層的設計除應控制層剪切剛度比外，還應控制轉換層上部與下部結構的等效側向剛度比以避免薄弱層出現在框支層，保證地震作用下落地剪力墻和框支柱不先於轉換層上部結構進入屈服狀態；大底盤多塔樓結構的分析必須考慮平扭耦聯振動和樓板平面內振動的影響。
  20. Decodes a url string token to its equivalent byte array using base 64 digits

    將url字元串標記解碼為使用64進制數字的等效位元組數組。
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