狀態變數 的英文怎麼說

中文拼音 [zhuàngtàibiànshǔ]
狀態變數 英文
state variables
  • 狀 : Ⅰ名詞1 （形狀） form; shape 2 （情況） state; condition; situation; circumstances 3 （陳述事件或...
  • 態 : 名詞1. （形狀; 狀態） form; condition; appearance 2. [物理學] （物質結構的狀態或階段） state 3. [語言學] （一種語法范疇） voice
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 狀態 : status; state; condition; state of affairs: （病的）危險狀態 critical condition; 戰爭狀態 state o...
  1. It is generally impossible to obtain the analytic optimal guidance law for complex nonlinear guidance systems of homing missiles, and the open loop optimal guidance law is often obtained by numerical methods, which can not be used directly in practice. the neural networks are trained off - line using the optimal trajectory of the missile produced by the numerical open loop optimal guidance law, and then, the converged neural networks are used on - line as the feedback optimal guidance law in real - time. the research shows that different selections of the neural networks inputs, such as the system state variables or the rate of los ( line of sight ), may have great effect on the performances of the guidance systems for homing missiles. the robustness for several guidance laws is investigated by simulations, and the modular neural networks architectures are used to increase the approximating and generalizing abilities in the large state space. some useful conclusions are obtained by simulation results

    對于復雜的非線性導彈制導系統，很難求得其解析的最優制導律，只能求得開環的數字解，不能適用於具有時變不確定性的導彈制導系統.利用神經網路的學習和推廣能力，對開環的數字最優制導律進行離線的學習，作為閉環的神經最優制導律在線應用.研究分別選擇系統狀態變量和視線角速率等不同的神經網路輸入對制導系統性能的影響，以及各種制導律的魯棒性問題，並採用模塊化神經網路結構提高神經網路的學習和推廣能力，模擬結果得到一些有益的結論
  2. Modern control theory has arisen with the advent of high - speed digital computers and characterized by the state variable concept with emphasis on matrix algebra and with analysis and design principally in the time domain

    現代控制理論是隨著高速數字計算機的出現而產生的，主要特點是使用狀態變量的概念並強調矩陣代數和主要在時間域進行分析和設計。
  3. The new features we will be looking at are : optional command parameters, variable actions based on parameters, and internal grammar state variables

    我們將查看的新功能是：可選的命令參數、基於參數的變量操作和內部文法狀態變量。
  4. ( 2 ) it applies in - situ monitoring technique to access deformation of braced country rock and evaluation of its stability. mathematical statistics and grey prediction model are applied to the latter deformation prediction

    （ 2 ）採用現場監測技術對軟巖隧道支護后的圍巖變形進行監測，根據隧道圍巖的變形監測數據，評價軟巖隧道圍巖的穩定狀態，用數理統計的方法及灰色預測模型對圍巖的後期變形進行預測。
  5. Data placed in session - state variables can be preserved through internet information services restarts and worker - process restarts without losing session data because the data is stored in another process space

    放置於會話狀態變量中的數據可以經受得住internet信息服務（ iis ）重新啟動和輔助進程重新啟動，而不丟失會話數據，這是因為這些數據存儲在另一個進程空間中。
  6. The result can be used in control problems whether the time interval is finite or infinite, the control set is bounded or unbounded, and also for systems with a weak differentiable function, i. e., the function f is only strong continuously g - differentiable but not f - differentiable. so, th 6. 2. 7 is a uniform theory of optimal control, and it has wide - ranging applications

    可以看到，我們的結11摘要果可用於有限時域和無限時域、有界控制和無界控制、並且對系統中函數f的可微性要求也有較大的減弱? f對狀態變量x可以是僅有強連續的g一導數、不要求為f一可微。
  7. By using theories from the relevant disciplines such as geography, mathematics, physics, ecology, and system sciences, this thesis develops a framework employing the concept of system entropy to represent the state function of the man - earth relationship system. in this framework the entropy change is used to show the development change of the system, and the entropy flow to express the flow among the spatial parts of the system. following the framework, and based on a large set of household data from surveys, the thesis makes a quantitative analysis of the village - level man - earth relationship system from a micro - perspective

    藉助地理學、數學、物理學、生態學、系統科學等有關學科理論，根據實地調查的大量農戶數據，從微觀視角對村域人地關繫系統進行了定量分析，用人地關繫系統熵來表徵人地關繫系統的狀態函數，用熵變來反映人地關繫系統的發展變化，用熵流來表示人地關繫系統各空間型式地域主體之間的流動。
  8. Abstract : digital basinis made from digital elevation model considering spatial variability within a catchment. on the basis of digital basin, the digital approach to describing hydrological processes within a catchment is investigated. digital hydrological model is regarded as a modern physically - based modeling technique that includes a large amount of information. the case study on the shiguanhe catchment in the huaihe river basin, intensified observation field of gewex asian monsoon experiment project, has shown that the digital mode lperforms very well not only in simulating runoff processes at any specific site, but also in simulating spatial distribution and temporal variation of hydrological elements and state variable ( especially soil moisture ), if compared with traditional hydrological models. that provides solid foundation for full use of now available observation in formation and in - depth mining of hydrological data

    文摘:考慮流域下墊面空間變異性，基於數字高程模型構建了數字流域，並在此基礎上對描述流域水文物理過程的數字方法進行了探討.文章認為，數字水文模型是一種有物理基礎的包含大容量信息的現代模擬技術.史灌河流域實例研究表明，數字水文模型可以十分方便地輸出水文要素和狀態變量的空間分佈與時間序列，這對充分利用現有觀測信息進行水文信息的深層挖掘創造了條件
  9. Considering that the state variables can be measured easily and the autopilot can be designed expediently, the btt missile ' s control model in which all trajectory states can be measured is presented in this thesis

    並考慮到狀態變量的可測量性和自動駕駛儀設計的方便性，建立了全彈道可測量的btt導彈控制數學模型。
  10. Also, the author ’ s design strategy and creativity has been given in this paper. specifically, it includes : based on the feasibility analysis of the fit selection of control parameters in the aeration process, the aeration process of wastewater treatment of the joint - constructional complete - mixed activated sludge process has been aimed at in this paper. then, the state equations of the aeration process have been proposed in this paper, which is on the base of dissolved oxygen concentration ( do ) and discharge quantity of sludge ( qw ) as control variables, the concentration of bod and sludge as state variables. based on the present study on optimization control of wastewater treatment, the multivariable optimal control model with restriction factor has been presented in the paper with introducing modern control theory and system analysis into the field of activated sludge wastewater treatment,

    具體包括:以完全混合、表面曝氣合建式活性污泥工藝的污水處理曝氣過程為研究對象，在闡述了曝氣過程式控制制參數選取可行性的基礎上，建立了以溶解氧濃度do和活性污泥排放量qw為控制變量，以曝氣池中有機物濃度s和微生物濃度x為狀態變量的活性污泥曝氣過程的基本狀態方程;運用現代控制理論的觀點和污水處理理論，在現有關于污水處理最優控制問題研究的基礎上，建立了有約束條件多變量能耗最小數學模型，該數學模型是以有機物排放總量和狀態變量的末值條件作為約束條件，曝氣過程的能耗最小作為目標泛函;採用增廣拉格朗日乘子法對最優控制問題進行轉化，並對應用極大值原理求解能耗最小這一最優控制問題進行了詳細的解析;引入約束運算元，應用具有控制約束的共軛梯度演算法對能耗最小這一最優控制問題進行求解，並進行模擬實驗驗證。
  11. With the speed - raising of railway and the marketing of the management, the load that the electric locomotive burdens increased annually. in order to guarantee the security of the locomotive, the overhaul must be transited from preventive maintenance to state maintenance, which can accelerate the speed and the quality of the locomotive overhaul and reduce the overhaul cost. the most important achievement is that the overhaul can be performed automatically and digitally and can be effectively competent for the record management of the overhaul data

    隨著鐵路提速和運營生產的市場化，機車運行負荷逐年增加，為了有效保證機車的運行安全，機車檢修必須從定期維修向狀態維修轉變，以提高機車檢修的速度和質量，降低機車檢修成本，更重要實現檢修自動化、數字化，完成對機車檢修數據進行有效的記錄管理，建立機車關鍵設備的狀態參數數據庫，從而實現對機車狀態有效控制。
  12. Thermodynamic analysis on wet compression process is done in this thesis and studies are done on ideal wet compression process, actual wet compression process, water droplet evaporative rate, wet compression work, inlet evaporative cooling, wet compression efficiencies and water droplet breaking. and thermodynamic model of wet compression process is established, which gives out rules of and methods to calculate wet compression parameters

    本文從熱力學的角度對濕壓縮過程進行了分析，分別對理想濕壓縮過程、實際濕壓縮過程、水滴的蒸發速率、濕壓縮功、進氣蒸發冷卻、濕壓縮效率和水滴的破碎等進行了研究，建立了濕壓縮過程的熱力學模型，給出了濕壓縮過程狀態參數的變化規律和計算方法。
  13. For the algorithm of reactive power optimization, presented in this paper, in order to found the linear programming model equations, the objective function is minimum total power losses, the controlled variables include the compensating capacity of reactive power, generator bus voltages and transformer tap positions, the state variables include reactive power of the generators, and the voltage amplitudes in the ends of transformers

    本文研究的電力系統無功優化演算法是以整個網路的損耗最小為目標函數，以無功補償設備出力、發電機端電壓和可調變壓器變比為控制變量，以發電機的無功出力和變壓器端電壓幅值為狀態變量建立了線性規劃模型方程。
  14. To obtain the prior distributions of parameters by bootstrap, i proposed the integrated sampling method to generate bootstrap samples. the method simulates a markov chain to describe the state changing procedure based on the failure time sampled by monte carlo method. and the posterior distributions of parameters are obtained by markov chain monte carlo ( mcmc ) method

    為了應用自助方法確定參數驗前分佈，提出了運行故障時間和狀態的綜合抽樣方法生成自助樣本，該方法基於試驗數據用蒙特卡洛方法對故障時間進行抽樣，在故障時間抽樣值的基礎上，模擬馬爾可夫鏈表示系統狀態變化過程。
  15. Optimal periodic control with the lowest operational cost by limiting total substrate discharge mass was studied. through adding new state variable and using supplement functions, the problem with restriction conditions was converted into nonrestriction problem. in addition, the dynamic searching method of optimal step coefficient was developed to modify the conventional gradient method, consequently the calculation problem of the multivariable optimal periodic control was able to be resolved better. it was found that the operational costs of optimal control under various initial states are distinctly different. a new concept of optimal control under optimal initial state was presented. it is pointed out emphatically that to the treatment system without optimal control condition, the suboptimal control with extensive practical value can be realized according to the results of optima control

    著重研究了在限制有機物排放總量時，使其運行費用最低的最優周期控制問題.通過增加新的狀態變量和用補償函數法，將本課題的有約束條件問題化為無約束條件問題，並提出了最優步長參數的動態搜索法來修改傳統的梯度法，從而較完善地解決了多變量最優周期控制的計算問題.研究中還發現了不同初始條件下最優控制所需要的運行費用也大不相同，進而提出了最優初始狀態下最優周期控制的新概念，這對保證出水質量的同時進一步降低污水處理成本來說具有更重要的意義.本文還強調指出：對于尚不具備實現最優控制條件的處理系統，可根據最優控制的研究結果實現具有廣泛實用價值的準最優控制
  16. The minimum number of state variables required is the order of the system.

    所需要的狀態變量的最低數量是系統的階次。
  17. When the paper uses the optimization regulation, it divides the management time into " t " stages according to ten days to make up the decision having many stages of the reservoir ' s optimization regulation, and it takes the reservoir ' s retain quantity of water or retain status of water and confiscated quantity of water a s condition variable, takes the water quantity of drawing off or quantity of electricity as decision variable. when the confiscated quantity of water can be known or be forecasted in every stage during the period of management, that is to say the confiscated water process can adopt the determined process, we can make up determine dynamic plan model with many stages and take the minimal lacking water as objective function

    在動態規劃方法中把水庫的整個調度期，按句劃分為t個時段，以水庫的蓄水量s或蓄水位z和入庫水量q作為狀態變量，以水庫放水量q或電站出力n或發電量e作為決策變量，構成一個多階段決策過程，當計劃調度期內各時段的入庫徑流量已知或可以預報，即入庫徑流過程可以採用確定性徑流過程時，分別按缺水量d最小作為目標函數建立多階段確定性動態規劃數學模型。
  18. From the viewpoint of macro dynamic characteristics of freeway traffic flow, this paper classifies the freeway, gives a nonlinear macro dynamic traffic flow model of freeway using density and speed as state variables and then identifies the parameters by using searching approach step by step, finally gives an identification instance

    摘要從高速公路交通流的宏觀特性和動態特性出發，對高速公路進行了兩級分段，以車流密度和車流速度作為狀態變量，給出了高速公路非線性的宏觀動態交通流模型，進而採用直接搜索法對模型中的參數進行了分段辨識，並給出了辨識實例。
  19. The paper calculates and analyzes the influences of the initial pressure, the volume of the expansion chamber, and the throat diameter of the nozzle on the non - loaded performance of the circuit breaker, and presents the variation of the state parameters of the expansion volume and the flow field during interruption period, also predicts the nature of the self - extinguishing circuit breaker

    本文分析計算了起始壓力、膨脹室體積及噴口喉部直徑的變化對斷路器空載特性的影響，給出了斷路器膨脹室狀態參數及滅弧室內氣流場在斷路器開斷過程中的變化，得到了自能式sf _ 6斷路器固有的特性。
  20. A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function

    把近代最優控制論方法引入軸流透平葉片的設計，在優化的軸流透平子午通道內，建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式，並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下，使級的某一性能指標（如級的功率）達到最優的最優控制問題，應用「代價函數法」及「共軛梯度法」編制計算程序，計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈，結果是令人滿意的。
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