物理變數 的英文怎麼說
中文拼音 [wùlǐbiànshǔ]
物理變數
英文
physical variable-
In the same time the output torque can also be measured and controlled rapidly and accurately. due to the complex nonlinear relation between the applied electrical field and the torque, it ' s difficult to set up the model using existing physic and mathematic theories. however, artificial neural network can express discretional nonlinear relation and has ability of study, which provides a new concept and method to solve this problem
由於波紋式電流變傳動機構的外加電場和電流變液產生的力矩間呈復雜的非線性關系，用現有的物理和數學理論來建模尚有一定的難度，而人工神經網路有表示任意非線性關系和學習的能力，給解決這類問題提供了新思想和新方法。The rate of contribution of various edaphic physical parameters is different from parameter of soil water infiltration model in different soil texture and husbandry condition, so independent variable factor and priority are different in regression models. the predicted results are satisfactory in correlation husbandry condition
在不同的土壤質地和不同的耕作條件下，土壤的各種物理參數對土壤的水分入滲模型參數影響程度不同，因此引入到回歸模型中的自變量因子不同，引入的先後次序不同。With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。This paper is an academic thesis about remote sensing information model and geographical mathematics. the author have studied a lot of remote sensing information models and geographical image information models. according to geographical regularity the author advance non - linear mathematics method which is geographical complex phenomena both of certainty and uncertainty to combine in an equation. that is from formal logic inferring to dialectical logic calculation. moreover, it is from abstract thinking to both of abstract and visualized thinking, which is image joining equation calculated. make a suggestion that the geographical parameters are different from the physics variables. thus initiate based on geographical science for mathematics. there are 4 parts as follows in this paper : the regularity of geographical phenomena ; general equation of remote sensing information model ; geographical parameters and geographical indexes ; significance of geographical image information models
從大量的遙感信息模型，地理圖像信息模型的實踐中，提出符合地理科學自身規律的非線性數學方法，解決了確定性與不確定性結合的宏觀復雜性問題。從形式邏輯推理發展到辯證邏輯的計算，從抽象公式的計算發展到抽象思維與形象思維結合的公式與圖像結合的計算。提出了物理變量與地理參數的區別，從而開創了以地理科學為背景的數學研究，進而為發展地理數學奠定了基礎。This paper deals with the static and dynamic output kinematic accuracy of a group of elastic slider - crank mechanisms with the same design parameters by taking the bar length, joint - gaps, mass density, interception and physical parameters as random variables
摘要將彈性曲柄滑塊機構的桿長、截面尺寸、鉸鏈間隙、質量密度、彈性模量等幾何、物理參數均視為隨機變量，對機構輸出運動進行了靜態和動態誤差分析。Secondly, from the view of the analysis of potential science, the teaching mode of the basic constants in physics is presented. thirdly, on one hand, author analyses the basis of epistemology, scientific philosophy and psychology of the teaching mode, on the other hand, author investigates the potential properties and shapes of the basic constants in physics. at the same time, it is also given the path of applying the theories and methods of potential science to the teaching of the basic constants in physics
本論文首先，扼述基本物理常數「潛? ?漸顯? ?顯? ?漸潛… … 」潛科學分析的分析理念；其次，探討基本物理常數潛科學分析的教學模式：提出問題，引起認知定向呈現進化過程，挖掘物理內涵揭示並闡述潛科學特徵採取有效途徑，培養科學素質再次，一方面從理論上闡釋基本物理常數潛科學分析教學模式的認識論、科學哲學和心理學依據，另一方面從實踐上闡釋基本物理常數的創造性、反常性、待定性、隱變性、高難性及趨顯性等潛科學特徵，同時提出科學問題、科學幻想、科學猜測、科學經驗、科學悖論、科學蒙難、科學論爭、科學失誤、科學伯樂、科學潛才等潛科學形態與方法應用於基本物理常數教學中的途徑。The difference of temperature fields from considering and neglecting the temperature - dependence of material parameters is compared, and the temperature distributions of al pipe are obtained in angular orientation at various time
給出了溫度隨角向的分佈曲線，比較了物理參數隨溫度變化和不隨溫度變化兩種情況下溫度場的區別，並進一步得到了近場區域表面波的時域波形。In the turbulent flow, the fluid ’ s physical parameters has the stochastic change along with the time and the space, it is very difficult to carries on its rate process ’ s precise computation and the simulation with mathematics method, but unstable condition navier - stokes equation regarding open canal current of water transient motion suitable
閘后水流經過加糙的海漫段時，其水流狀態屬明渠紊流。流體中的各種物理參數，都隨時間與空間發生隨機的變化，很難用數學的方法對其運動過程進行精確計算和模擬。This paper mainly deals with the subjects below : the problem on fem analysis, general reliability analysis and calculation, and optimization based on the general reliability of the random or fuzzy parameters structure ; and also brings forward a method for getting the fuzzy answers from the fem equation by taking the fuzzy multiplier from a fuzzy variable ; in the fem analysis and structural reliability optimization, the randomcity and fuzziness of the structural physical parameters and the load applied on the structures are all considered
文中對隨機和模糊參數結構在不確定性荷載作用下的結構有限元分析、可靠性分析和基於可靠性的優化設計等問題進行了研究。以桿系結構為對象，提出結構分析的模糊因子方法，其中分別或同時考慮了結構材料的物理參數、構件的幾何尺寸和作用荷載幅值等的隨機性和模糊性；對結構響應（位移、應力）為模糊變量時的廣義可靠度進行了推導。The transient temperature fields generated by a pulsed laser in hollow cylindrical film - substrate system are studied by using the finite element method, after considering the temperature dependence of the thermo - physical parameters of the materials
摘要基於材料的熱物理參數隨溫度的變化，用有限元方法對脈沖激光作用於薄膜基底式雙層管狀材料時產生的溫升進行了數值計算。Abstract : he problem of structural dynamic optimization with the reliability constraints of the frequency is studied in this paper
文摘:首先對結構材料物理參數為隨機變量時，結構剛度和質量矩陣的建立以及結構特徵值隨機變量的數字特徵進行了推導。On the base of the study on sige material physics characteristic, sige / si hetero - junction characteristic, we dissertate the advantage of sige / si hetero - junction power diodes and establish more accurately physical models and propose two novel kinds of fast and soft recovery p + ( sige ) - n - - n + hetero - junction power diodes : the one is p + ( sige ) - n " - n + diode with the multiplayer gradual changing doping concentration in the n - region, and the other is p + ( sige ) - n " - n + diode with ideal ohmic contact on the cathode interface
本文針對sige材料的物理特性、 sige si異質結特性建立了準確的物理參數模型。在詳細論述了sige si異質結功率二極體良好特性的基礎上，提出了兩種快速軟恢復sige si功率二極體新結構： n ~ -區採用多層漸變摻雜和陰極側採用理想歐姆接觸。The load capacity and damage degree of bridge are detected by the curve of the transformation of vibration frequency in different attached load and different damage. a conclusion that the attached load method improves the of vibration frequency sensitivity to the physical property parameters of bridge structure is drawn at last. and the same time the paper bring forward a new and convenient technique of dynamic load test - - the attached load method
通過振動頻率在不同的附加荷載作用下、不同破損情況下的變化曲線來確定橋梁的承載能力以及破損程度，得出了附加荷載法改變了振動頻率對橋梁結構物理參數的弱靈敏性這一結論，提出了一種更為新穎、快捷的橋梁承載能力的動荷載檢測方法? ?附加荷載法。Temperature measurement techniques for microfluids in capillary and microfluidic systems are reviewed, including exterior contact methods, fluid physical - parameter - based methods, thermo - sensitive marker methods, nmr and raman spectrometric methods, and laser - based interface measurement technique
摘要綜述了近年來應用於毛細管和微流控系統中的各種微流體測溫技術，包括外部接觸測溫、依據液體物理參數變化測溫、基於熱敏物質測溫、核磁共振和拉曼光譜測溫以及基於激光的界面測溫，並對各種測量方法和優缺點進行了討論。However, in fact, thephysical parameters and dynamical character of the structure duringthe occurrence ofdamage are time - varying, and the response signalbehaves a non - stationary character. thus, it is generally recognized that the linear time - varying ( ltv ) model is moreappropriate and better than linear time - invariant ( lti ) model to capture theinstantaneous dynamical behaviors
然而事實上，結構的損傷使得其物理參數和動態特性隨著時間而變化，結構的響應具有非穩態的特徵。因此，利用線性時變系統模型，獲取系統的時變特徵，才更有利於結構破損診斷，線性時變系統的參數識別也受到了越來越多的關注。However, when the actuator, which is made of piezoelectric ceramics, is bonded on a structure, it may influence some of the specimen ' s physical parameters, such as elastic modual. so the induced strain field is influenced. and the extent to which the parameters are influenced depends on the size of the actuator
然而，壓電陶瓷驅動器粘貼于試件表面時，會對試件的彈性模量等物理參數有所影響，進而影響到整個誘發應變場，隨著壓電陶瓷驅動器尺寸的變化，影響的程度也跟著變化；而且為了達到良好的控制效果，往往需要在不同的位置粘貼多片壓電片，這些問題都使得掌握粘貼型壓電驅動器的誘發應變場的位移圖及其尺寸變化對誘發應變場的影響成為必要。But for the moment, the examples discovered in gabon remain unique windows on possible changes in fundamental physical constants and on how buried nuclear waste migrates over time
不過現階段而言，要研究基礎物理常數可能的變化以及埋藏的核廢料如何隨時間遷移，加彭的例子仍是我們唯一的窗口。An identification algorithm of physical parameters of the ltvdynamical systemis developed in this paper
本文基於daubechies小波對線性時變系統進行物理參數識別。Then small signal model for sepic - pfc converter as well as its control scheme is developed and used to optimize regulator ' s parameters. time domain simulations in detail of the converter are carried out and physical and mathematical explanations are given for the results of simulations
然後研究了sepic - pfc變換器的小信號模型並建立了系統的控制模型，根據控制模型對控制參數進行了優化設計。最後對系統進行了深入的時域模擬研究並給出了模擬結果的物理和數學解釋。The study shows that the substrate and other physical variables ( stream mean width, depth and velocity ) in changjiang river system from 1st to 6th order streams present a continuous gradient of physical conditions
研充表明閶江河一至六級支流平均寬度、深度、流速及底質組成和顆粒大小等物理參數具有明顯的梯度變化。分享友人