時標因數 的英文怎麼說
中文拼音 [shíbiāoyīnshǔ]
時標因數
英文
time scale factor-
2. an optimal design that is good for individual function can be realized through adjusting the adding authority gene to have the dispart objective functions given up to each other if certain targets are to be improved during optimization calculating
2 、在優化計算時，要想使某項指標提高，可以通過調整加權因子來實現，使各分目標相互作出一些讓步，以取得一個對于各分目標函數值都比較好的最優方案。Considering the electrovalence, the curve of water consumption and the reliability of water supply, this paper respectively sets up the model based on the maximal flux and the model based on the expectation flux. it takes yearly expenditure converting value and yearly cistern converting value as target function and takes continuity equation, velocity of flow and compression resistance of cast iron pipeline as restrictions and sets up the pga model on optimal design of water supply networks
考慮到峰谷電價、用水量變化曲線及用水可靠性因素的影響，分別建立了以最高時流量設計管網的模型和以期望時流量設計管網的模型，以年費用折算值加上清水池年造價折算值為目標函數，以連續性方程、管中流速和鑄鐵管耐壓值等為約束條件，進行并行遺傳演算法對給水管網優化設計的實現。Secondly, in order to make a deep analysis of c2 system structure, the author made the fire cell and aerial command control centre into the c2 organization nodes, then import into the information flow to analyze the c2 organization network, through which the author constructed a linear programming model to analyze the time consumption of c2 organization. based on object petri network ( opn ), the author also analyzed the c2 organization reconstruction process
其次，為了深入分析c2系統結構，將火力單元和區域指控中心作為c2組織節點，引入信息流因素對支持網路化作戰的c2組織網路進行了建模分析，以c2組織的時效性作為目標函數提出了c2組織的一種設計模型，並研究了通過對象petri網對防空網路化作戰中的c2組織動態重組的建模方法。Both the economic and the non - economic criteria have quantitative and qualitative indicators, it is hard to conclude that the non - economic criteria are more subjective. the study adheres to the principle of sustainable development and has adopted an integrated approach to put equal emphasis to economic, environment and social considerations in formulating development options
經濟性和非經濟性的準則都有數量和質量的指標，因此難以推論非經濟性準則比較主觀。這個研究在制訂發展方案時，會堅守可持續發展的原則，並進行綜合分析，以平衡經濟、環境和社會三個同樣重要的因素。A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method
提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高Then some optimal models of water supply networks are enumerated and some factors which can influence the optimal results are analyzed such as the efficiency of pump station, the temporal value of fund, the curve of water consumption and the coefficient of water supply energy and so on
接著，列舉給水管網優化設計的數學模型，並分析影響目標函數優化結果的各種因素，例如泵站效率、資金時間效率、用水量變化曲線、供水能量變化系數等。The model of this paper explores the links between the following factors and the credit rationing in china. the change of banks " attitude to credit risk may lead to credit rationing ; banks give much more emphasis on the trade cost and the payable value of collateral, which may give rise to credit rationing ; the decreasing of asset price during economic stagnation produces credit rationing ; the bias of banks " objective function from the maximization of profit and the transformation of the function relating to the reform of the financial system cause credit rationing ; if different parts of the whole markets are not integrated, the credit in the part with low capital return ratio will be rationed. during economic recession, banks tend to ration the credit in the high - risk market ; the removing of interest ceiling will narrow down the interest spread of deposit and credit at least during a period, which may strengthen credit rationing ; meanwhile, the vulnerable borrowers, including small and middle - sized enterprises, will get more credit from banks even though they have to pay a higher interest rate
論文的模型探討了下列因素和中國信貸配給現象之間的聯系：商業銀行對信貸風險的態度變化，在辨別和控制信貸風險上開始投入大量的成本，這一過程會導致信貸配給；商業銀行對與法治環境相關的交易成本和抵押品清償價值的日漸關注會導致信貸配給；宏觀經濟緊縮時期資產價格下降會導致信貸配給；商業銀行經營目標函數偏離利潤最大化，近幾年金融業改革過程使商業銀行目標函數發生變化，這一變化過程可能導致信貸配給；在市場分化的條件下，收益水平低的市場會遭受信貸配給；在經濟下滑時期，商業銀行尤其會對高風險市場配給信貸；利率市場化使商業銀行的存貸利差至少在一段時間內縮窄，利差縮窄可能加重信貸配給的程度：在利率市場化條件下，弱勢借款者，包括中小企業，遭受信貸配給的程度可能得到緩解，但支付的貸款利率水平將會升高。The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method
本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。This is the second bifurcation of the rotor, leading to low frequency movement at about 1 / 6 rotary speed. ( 3 ) in the third part of the paper, we focus on how to establish a rotor model with multi. span and multi. disk including main linear and nonlinear stimulations on the rotors system. the rules for establishing this kind of rotors model are put forward at the beginning of this part
（ 3 ）提出了轉子大系統的理論建模準則，考慮非線性油膜力、聯軸節剛度及標高等因素的影響，建立了一個16dof兩跨四盤四支撐不平衡彈性轉子模型，並提出了大型汽輪發電機組全軸系的48dof理論模型，建立了考慮陀螺效應時的復數形式的非線性動力學模型。This d format can show the range of the data intuitively and express the real time data, which improves the speed and precision of svpwm arithmetic greatly. the ratio of carrier wave is increased and the blend of current is reduced, as a result the performance of the system is ameliorated. this thesis project has finished the debugging of the ac motor control system, and the result shows that hardware and software of the designed system is in reason
在實現svpwm演算法的匯編程序中採用了一種新型的d定標法對標幺化的數值進行定標，這種d定標法能直觀的表示數值的大小范圍，可以實時的對數值進行定標，提高了svpwm演算法執行的精度和速度，增加了逆變器的載波比，減少了電流諧波，因而改善了交流變頻調速系統的性能。The system can generate sweep frequency signal with frequency range from 100khz to 150mhz and power range from - 40dbm to + 18dbm, and measure the gain and phase of the crystal. according to the gain and phase information and the iec - 444 standard, crystal parameters can be calculated, such as nominal frequency, series resistance, shunt capacitance, motion capacitance, motion inductance, q factor and so on
該系統能產生頻率范圍達100khz 150mhz ，功率范圍為? 40dbm + 18dbm的掃頻信號，並能對晶振的增益和相位差進行測量，其測量結果按照iec - 444晶振測量標準進行實時處理和計算，從而得到晶振的串聯諧振頻率、並聯諧振頻率、等效電阻、靜態電容、動態電容、動態電感和品質因數等主要電參數。For problems whose objective function or constraint functions have sharp curves on their contour maps ( such as the rosenbrock ' s function which has banana shape contours ), monotonicity may cause a series of very small steps, causing a huge number of iteration to reach their solutions. by using the nonmonotone technique, we get the sequence of successful interative point which should make the objective function mono - tonically decreasing. hence, we use both trust region strategy and line search technique and make each iterate generate an acceptable trial step in interior feasible set as next interative point
我們利用非單調技術得到使目標函數非單調下降的迭代點，因為非單調克服高度非線性化函數的求解問題，從而避免了只使用單調搜索在「峽谷」現象局部最優解被卡的情況，我們用信賴域策略和非單調線搜索技術相結合的方法，使演算法產生的迭代步落在可行域內點，同時又在信賴域內滿足接受準則。The demonstration shows that clustering algorithm is good for selecting handful stocks from the whole market and appropriate time factor can improve tracking result significantly
實證研究結果發現，聚類演算法能從市場上的大量股票中選擇符合條件的股票作為模擬市場指數的證券投資群體，而時間因子則能有效提高對標的指數的跟蹤效果。This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement, easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented
該方案由於引入了定子電流勵磁分量的閉環控制，使系統同時具有轉速和勵磁調節兩個調節通道，具有如下優點：一、解決了超同步工作工況不穩定的問題；二、提高了定子側的功率因數（與轉子側功率因數為1相比） 。三、由於速度調節在轉子坐標系下進行，並以轉子電流矢量定向，所以無須轉子位置傳感器，也不用檢測初始位置，易於組成無速度傳感器雙饋調速系統。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。Electric performance index of the system is given. the ac standard equipment should be 3 - phase output standard resource by which the ac voltage, ac current, power factor, 3 - phase - 3 - line effective power, 3 - phase - 4 - line effective power, reactive power and single phase watt meter, working frequency and phase meter can be examined. the system makes full use of the main computer which has multi function in the examination
給出了電氣性能指標，交流標準裝置應為三相輸出標準源、使其可校驗交流電壓、交流電流、功率因數、三相三線有功功率、三相四線有功功率、無功及單相電能表，同時可校驗工頻頻率表及相位表，在校驗檢測中充分發揮主機多能的作用。Indeed, because xml is a markup language, it is concerned solely with the organization of information - unlike, say, the java language which deals both with the data model class hierarchy and data manipulation methods
事實上，因為xml是一種標記語言，僅僅涉及到信息的組織這一點和其他語言是不同的，比如java同時處理數據建模（類繼承）和數據操作（方法） 。At times, a modest amount of work classifies a child as a laborer, which inflates the figures ; on the other hand, girls ' work around the home, which often comes at the expense of their education, is severely underestimated
有時他們會把還算合理的工作量當成童工的界定標準，數據因此有灌水之嫌；另一方面，他們又嚴重低估了家中女童的工作量，這些女童往往因此而失去受教機會。Abstract : in the nonminimum phase system, it contains the unstable zero, so the controller can " t be designed according to the ideal state. the mode of modified evaluate function addressed in this paper can promise the bounds and stability of the minimum variance control in nonminimum phase
文摘:對于非最小相位系統，因其含有不穩定的零點，所以不可以按理想狀態的情況構成控制器.提出修正目標函數的方法，可確保非最小相位時最小方差控制輸入的有界性和穩定性The method of main factor analysis is applied for evaluating fabric shape style in this paper. as the result, many parameter for expressing aesthetics of fabric shape are replaced by only a few main factors. meanwhile, the samples of fabric are classified by the scored diagrams of main factors of drape aesthetics of fabrics. this provides a new method for reasonable evaluation of fabric shape aesthetics and choosing of clothing materials rightly
在織物形態風格評價上通過主因子分析方法的應用，將評價織物懸垂美感的多個特徵參數指標簡化為少數幾個主因子，同時用因子得分圖將織物加以分類，為合理評價織物外觀形態美感，滿足服裝選料要求提供了一種新方法分享友人