interval variable 中文意思是什麼
interval variable
解釋
區間變量-
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 idea of generating the initial points through one dimension chaos mapping, and then taking them as the initial values by mapping them to the variable interval, a new method based on chaos mapping newton iterative to seek the solutions of nonlinear equations is proposed
摘要運用一維混沌映射產生初始點，再映射到變量區間，為牛頓迭代初值進行求解非線性方程組，提出了基於混沌映射的牛頓迭代法求解非線性方程組的新方法。 -
Based on the formal measurement table applying the 2 ( superscript nd ) pre - test on 351 students and conducting the examination of the credibility and validity to construct the credibility and validity of the measurement table, the coefficient of inner consistency of individual element in this table was. 673 ~. 892, and the coefficient of re - test after the interval of two weeks was. 697 ~. 930, with the performance of physical education learning to prove the discriminate validity and criterion - related validity, and with the element analysis to examine the construction validity, the sum of variable amount which could be interpreted was 59. 06 %, the outcome showed this table was having good credibility and validity that could provide physical education teachers to realize the learning strategies of university students
以正式量表對351位學生進行第二次預試，再進行信度與效度的考驗，以建構量表的信效度，本量表各因素的內部一致性系數為. 673 ~ . 892與隔二周的重測信度為. 697 . 930 ，以體育學習表現來驗證辨別效度及效標關聯效度，以因素分析考驗建構效度，所能解釋總變異量為59 . 06 % ，結果顯示本量表具有良好的信效度，確實可以提供國內體育教師了解大學生的體育學習策略。 -
Abstract : this article is based on the theory of fuzzy optimization design. the running speed and width and initialtensileforce and interval distance of roller are its design variable. the objective function is the minimum power loss of the traction motor. it constructs the fuzzy optimization mathematical model of the two - way running belt conveyer ' s main parameters
文摘:以模糊優化設計理論為基礎，以雙運帶式輸送機輸送帶的運行速度、寬度、初張力及托輥間距為設計變量；以牽引電機運行的最小功率消耗為目標函數，構造出了雙運帶式輸送機主參數的模糊優化數學模型。 -
It is worth mention that the researches in fuzzy disturbing operator property and the invariance of fuzzy operator for interval variable have laid the basis of applications of indeterminacy mathematics method in opsearch and control theory for economy and management
值得說明的是作者對模糊擾動運算元及其性質的研究和關于區間值模糊運算元的不變性研究，為運籌學與控制論中的不確定性數學方法在經濟管理中的應用打下了基礎 -
As for a certain value of the training error, if the predicted value of a neural network model lies in true value confident interval, it is believed that the true value of a neural network output variable be obtained, and the training process of a neural network is over
該方法由實測值求出相應的真值置信區間，若訓練誤差的取值使得網路預測值落在真值置信區間內就可以認為此時的訓練學習反映了網路輸出變量的真值情況，學習就可以結束。 -
The advantages and drawbacks of the traditional ofdm systems are fully analyzed. hoping to overcome the drawbacks, the aofdm system is designed. the concept of variable guard interval is introduced into aofdm system for the first time
分析了傳統的ofdm所存在的優缺點，在此基礎上提出了aofdm系統，並首次將可變保護間隔的概念引入aofdm系統。 -
In this paper, i study above two issues and gain some results as follows : 1. under population follow normal distribution hypothesis, designing combine median - range adaptive control charts with variable sampling interval, variable sample size and variable control limit. it may be regarded as previously median - range extension
在假設總體服從正態分佈的條件下，設計了抽樣區間，樣本容量和控制限都變化的全變化參數的中位值-極差聯合控制圖。它是以前的中位值-極差聯合動態控制圖的推廣。 -
What the practical problems is often gotten is a single variable time series which has a time interval of t, reflect by a lot of interactive physics factor, containing the mark of all variates participating in movement, traditional time series analysis is to analyse going from this array to the form directly it ' s time develops, one dimension analysis loses useful information, the characteristics of phase space reconstruction method is to construct one dimension scalar quantity to high dimension vector, prop the geometry space of the state, show all dynamical information of system in phase space. the characteristic that just constructs again according to the phase space in this text, analyse the time series of responding, use the relevant knowledge of symbol dynamics and reconstruct phase space, put forward a kind of relation degree analysis method of the systematic mathematics model which has theory basis, so reach the correction of calculation mathematics model, make it accord with the actual systematic state
實際問題中常常得到的是一個時間間隔為t的單變量的時間序列，它是許多物理因子相互作用的綜合反映，蘊藏著參與運動的全部變量的痕跡，傳統的時序分析是直接從這個序列去形式地分析它的時間演變，一維分析必然喪失許多有用信息，相空間重構方法的特點是把一維標量數據構造成高維矢量，支起狀態的幾何空間，在相空間中展示系統全部動力信息。本文正是根據相空間重構的特點，對響應時間序列進行分析，利用符號動力學、重構相空間等方法，提出一種有理論依據的系統數學模型關聯度分析方法，從而達到修正計算數學模型，使其更符合實際系統狀態的目的。 -
Finally, degree reduction of interval rational triangular b - b surfaces is discussed. the problem is also converted to degree reduction of bi - variable polynomials with upper bound. according to degenerating conditions of triangular b - b surfaces, an optimization model is constructed and optimal solutions under certain constrains are calculated
先將該問題轉化為雙變量多項式的限制上界的降階問題，然後採用最優化方法，結合三角b - b曲面的退化條件，建立約束優化模型，求出約束意義下的最優解。 -
Interval became variable
周期變成不定 -
In addition, the scanning interval of a replica is variable according to the accessing frequencies of those replicas, which makes dafrm more sensitive to the change of system behaviors
Dafrm機制可以在不增加系統負載的條件下更加靈敏地實現對副本的動態管理，充分發揮文件副本的性能優勢。 -
Algorithm designing is base on traditional method and make amelioration. in this design, it adopts two variable thresholds, adds a moving window and r - r interval threshold
演算法設計在傳統的方法上提出改進，採用雙可變閾值法，並增加了一個滑動時間窗和r - r間期閾值。 -
Taking all the interval number s in the equations as optimal design variables and representing the lower and th e upper bounds of each interval number as the boundary constrain of the variable respectively, the maximum and the minimum of various components of the solution are achieved by using the constrained optimization method
將方程組中的所有區間數都作為設計變量，區間量的變化區間作為相應的設計變量的邊界約束，運用約束優化法求出方程組解的各元素的最大值和最小值。 -
As per optimal operation pattern function with annuals cycle, each decision of annual cycle and corresponding operating factors in the light of observed value of random variable, regression analysis at each time - interval is carried out and then regression equation will be as the operation function to guide cooperating operation for group hydropower station
依據優化調度模型函數，以年為周期，將各年周期的決策值及其相關的運行要素作為隨機變量的觀測值，逐時段做回歸分析，並將其回歸方程作為指導水電站群聯合運行的調度函數。 -
Variable interval reinforcement
變動間隔強化 -
Measuring and analyzing technology based on variable - time - interval fourier transform was dealt with for vehicle accelerating noise signal
摘要提出了基於變時基短時傅里葉變換來分析和處理時變信號的技術。
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