mathematical induction 中文意思是什麼
mathematical induction
解釋
數學感應- mathematical : adj 數學（上）的，數理的；嚴正的，精確的。 mathematical instruments 制圖儀器。 mathematical logic...
- induction : n 1 引入，誘發，誘導（作用）。2 【邏輯學】歸納法，歸納推理 （opp deduction）。3 就職，就職典禮；...
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Inclusion and exclusion principle proved with mathematical induction
一般容斥原理的數學歸納法證明 -
And more, in this model of study process, clearly explain the education worth of the mathematical induction method [ 4 ]
更由此研究過程，來表現觀察歸納研究法模式，在數學教育上的價值4 。 -
The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance
通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。 -
The vector control mathematical model of linear induction motor is established under the synchronization reference frame
摘要在同步旋轉坐標系下，建立了直線感應電動機的矢量控制數學模型。 -
This article gives a description of cauchy inequality under the restricted condition of the variables ad proves it through mathematical induction, and at the same time presents some instructive results
摘要本文介紹了在變量限制條件下的柯西不等式，同時用數學歸納法予以證明之，順便給出了一些有意義的結果。 -
It mainly discussed the new ideas the teachers should have, the principles during teaching designing, at the same time, it gave out a new kind of instructional design pattern. at last, it gave out a class of teaching about mathematical induction based on these theories of constructivism and teaching deign
主要闡述了建構主義理論下數學課堂教學設計中教師應具備的新意識，教學設計應遵循的原則和在建構主義指導下數學課堂教學設計基本模式，最後以「數學歸納法」一節為例，給出一個以上述理論為指導的數學課堂教學設計的案例。 -
There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not
首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。 -
Based on the examination of the number theoretic backgrounds of gauss and hilbert and the relevant mathematical development in 19th century, a discovery is made by induction that the solvability and the scientific value of mathematical problems may change with time
運用歸納方法，通過對高斯、希爾伯特兩人數論背景的比較以及對19世紀相關數學進展的考察，得出數學問題在不同歷史時期可解性及科學價值會發生改變的結論。 -
Abstract : a mathematical model of electrical data calculation of coreless induction furnace is proposed and a useful method of measuring stray loss and electrical resistivity at high temperature of crucible is given
文摘:提出了一種無芯感應爐電參數計算的數學模型，給出了測量雜散損耗和坩堝高溫電阻率的實用方法。 -
First of all, study the meaning of securities investment and class the risk. secondly, measure the risk of investment product from the probabilities & statistics angle, and makes conclusion by mathematical induction, provide theory support for evaluate risk of open - end fund investment portfolio
首先研究了證券投資的含義，並對風險進行了分類；其次，從數理統計的角度對投資產品的風險進行了統計測定，通過數理推導得出了相關結論。 -
This paper first expounds the principle of the bearingless induction motor, gives the mathematical model of bearingless induction motor and analyzes the rotor flux orientation vector control system of the bearingless induction motor
本文闡述了無軸承異步電機的基本工作原理，並建立了無軸承異步電機的數學模型，分析了無軸承異步電機的轉子磁場定向矢量控制系統。 -
Based on the mathematical model of induction motor, this paper discusses the rotor - field - orientated control principium and the space vector pulse width modulation principle. subsequently the software design of svpwm is put forward
本文在分析感應電機數學模型的基礎上，詳細討論了轉子磁場定向矢量控制理論和空間矢量脈寬調制技術原理，提出了svpwm的軟體實現方法。 -
After analyzing the mathematical model of wind turbine and doubly - fed induction generator, a schematic is given about the power flow in the wind turbine and generator and a static equivalent circuit is shown as well. then, through the reference frame transform, the electromagnetic equation, dynamic equivalent circuit, and vectorgraph of doubly - fed generator can be gotten in the dq reference frame. in virtue of the general dynamic equivalent circuit, it produces a asymmetry equivalent
本文在對風力機和雙饋電機進行了數學分析后，給出了功率在風力機和雙饋電機中的流動過程圖解，同時給出了雙饋電機的穩態等效電路；然後，經過坐標變換，進一步得出了同步坐標系下雙饋電機的基本電磁方程、功率方程、動態等效電路和綜合矢量圖，並藉助通用動態等效電路的形式，得出了便於定子磁鏈分析的不對稱等效電路。 -
Abstract : combining with the actual coil type induction - motor - driven hoist system, an hoist emulation mathematical model and system is proposed. it is better consistent with the fact, has higher application value
文摘:結合繞線型感應電動機驅動的單繩纏繞式提升機的具體實際，提出了提升系統模擬的數學模型，研究了相應的模擬系統.運行表明，符合實際情況，具有推廣應用價值 -
This article solves some theoretical problems of electrostatic suspension based on optoelectronic feedback control. the mechanism of electrostatic induction of conductive suspended objects ( cso ) and electrostatic polarization of insulting suspended objects ( iso ) was theoretical discussed. the equations of charge density on the surface of suspended object caused by electrostatic field were developed. we further provided the equations describing the quantitative relationship of electrostatic forces verses the electrode voltages, the electrode area, the suspending gap, and the electric characteristic of suspended object. these equations show that the inducted surface charge density of cso is greater than the polarized surface charge density of iso, as a result, the electrostatic force acting on cso is larger than that acting on iso, as already proved by the experimental results of measured electrostatic forces. this work provided the theoretical equations and the mathematical models for effectively realizing the optoelectronic feedback control of electrostatic suspension
本文主要討論光電反饋式靜電懸浮的理論問題.研究在靜電場作用下導電懸浮體的靜電感應機制和絕緣懸浮體的靜電極化機理，推導出懸浮體表面的感應電荷或極化電荷的計算公式，以及作用於懸浮體上的靜電懸浮力的計算公式，在理論上揭示了靜電力與電極電壓、電極面積、懸浮間距及懸浮體電學特性等因素之間的關系.結果表明，導電懸浮體表面的感應電荷量比絕緣懸浮體表面的極化電荷量多，因此前者所受的靜電懸浮力比後者大，但兩者均可實現靜電懸浮，這些結論與實驗結果完全符合.本文工作為實現靜電懸浮的光電反饋控制提供了理論依據 -
The nonlinear mathematical model for the inverter induction motor system is set up taking the effect of the dead time of the inverter into consideration. based on the phase - space reconstructed theory of the chaotic kinetics, the nonlinear time lag method is used to determine the way to chaos, the attractors are reconstructed from steady state to chaotic state, and the essential characteristics of chaos are clarified
推導並建立了計及死區時間的逆變器-異步電動機系統數學模型，根據混沌動力學相空間重構理論，採用非線性系統時滯方法，研究系統通往混沌的途徑，重構系統穩態至混沌的吸引子，闡明系統混沌運動的基本特點。 -
In this thesis, mathematical induction of portfolio means - variance model and capm are introduced, and a brief introduction is given to the model of capm and apt under nonstandard situation meanwhile the practical meaning of each model is explained from the angle of economics
論文介紹了組合投資均值一方差模型有效邊界和capm的數學推導，簡要介紹了非標準狀態下（即標準capm的假設條件減弱的條件下）的capm和apt模型，從經濟學角度解釋了各模型的實際意義。 -
In chapter 2, gives a brief introduction to the basic theory of induction heating technique ; a mathematical modal is developed to describe the distribution of electromagnetic field and eddy current density in the long solid cylinder billet of induction heating. the general question of eddy current field calculation and the weakness of design theories for induction - heating coils that has won great popularity in engineering are pointed out
第二章：介紹了感應加熱的基本原理，推導了感應加熱工件內電磁場與渦流分佈的理論公式，對感應加熱渦流場計算的一般問題、傳統感應加熱工程工程設計計算的不足以及電磁場數值計算方法作了介紹。
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