proportional model 中文意思是什麼

proportional model 解釋
比例選擇模型
  • proportional : adj （成）比例的；相稱的，平衡的，調和的 （to）。 a proportional number 比例數。 a proportional e...
  • model : n 1 模型，雛型；原型；設計圖；模範；（畫家、雕刻家的）模特兒；樣板。2 典型，模範。3 （女服裝店僱...
  1. Hydraulic control system of double - cylinder vessel gate is a sort of typical electrohydraulic proportional control system0 in order to study electrohydraulic flux control characteristics of this system, i have analyzed the principle of this hydraulic control system, and made its mathematics model ? in double - cylinder hydraulic system, it is necessary to process electric synchronous control in this hydraulic system, this paper also introduces a sort of fnn ameliorated from the point of view of intelligent control theory, and clarifies the principle of applying that network to achieve synchronous controlo at the same time, the means of fuzzy configuration analysis is used for network training, the comparative experiments make known that the method of applying fnn to realize synchronization control is feasible, furthermore, its effect is better than others0 this paper puts forward that a distributed control system can be used to monitor and control vessel gate within a real - time or remote distance, the basic project, structure, applications and functions of computerized scada system in hydraulic system of vessel gate is introduced ? a double layer network structure, epigynous and hypogynous machine network, is applied to this system, in accord with the application of technique such as plc, integrated software etc, this paper introduces the methods and application to achieve the computerized scada system in the task, and analyzes the characteristic of this system, in this paper, the application of configuration in monitor and control system of vessel gate is discussedo in addition, in accord with the application of technique such as visual basicb

    雙缸船閘液壓啟閉控制系統要求解決同步控制問題，文中從智能控制理論角度出發，採用了一種改進的模糊神經網路，結合模糊聚類分析方法，闡述了應用該網路實現同步控制的原理。通過對比模擬實驗表明：應用模糊補經網路實現同步控制是可行的，而且它的同步控制效果要優于傳統的設置主從令缸控制方法，具有良好的魯棒性能。另外，本文提出了建立船閘控制系統的分散式控制系統，介紹了船閘液壓控制系統的計算機監控系統（ scada ）的方案、結構、應用和主要功能，採用雙層網路化結構：上位機網路和下位機網路，並結合plc通信網路技術和組態軟體等技術構成的計算機監控系統的實現方法，實際應用，分析了這種較新的系統模式在船閘液壓控制系統的計算機監控系統的功能實現中所具有的特點。
  2. Abstract : since the multiple failures situation is not uncommon in the clinical medicine, we explore the use of proportional odds model to the multivariate interval - censored data. the approach is based on the conditional logistic regression, which prevents the complications in the existence of nuisance parameters. the estimation of parameters is obtained by the newton - raphson algorithm. the sandwith estimator for the covariance is made according to the situation where there is correlation in the score statistic. simulations are also presented to assess the accuracy of the procedure

    文摘:探索比例優勢模型在臨床醫學中常見的多結局區間截斷數據中的應用.用條件的邏輯回歸方法避免討厭參數的估計，用牛頓-拉普森演算法估計回歸系數，用"夾心方差"估計量作為參數方差的估計.通過隨機模型檢驗模型應用的有效性
  3. Research on optimal control policy of proportional reinsurance model

    比例再保險模型的最優控制策略研究
  4. Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running

    本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點，提出多變量協調控制方案，解決了系統可控性差，難以實現穩定自動運行的問題；在此基礎上，改變以往以煙氣含氧量控制送風的傳統模式，針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重，煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題，應用智能控制理論中的模糊控制技術，結合自尋最優控制的思想，設計了一種模糊自尋優控制器，應用在電站鍋爐送風控制系統上，並闡述了動靜態兩種實現途徑，通過在線優化風煤配比，實現最佳經濟燃燒，切實保障了鍋爐的經濟運行。
  5. Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc

    本文根據大量的國內外文獻，對研配液壓機的工作原理及設計結構進行了簡介；對位置同步的控制方法進行了比較分析，提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案；在此基礎上著重對比例閥控非對稱缸建模，最後得到位置控制系統的總體數學模型，從理論上對同步系統動態特性進行了分析，並用pid控制器進行參數整定，減小雙缸同步誤差、提高系統的動態響應性能；其中控制性能的分析藉助于matlab軟體中的simulink工具箱，由已建立的數學模型形成模擬模型，得到可視化的模擬結果，從而利於交互方式下調整參數，了解不同的參數對系統的影響，優化同步系統的動態性能；在深入了解系統的動作特性后，對plc控制研配液壓機的原理進行了探討，針對siemens公司s7 ? 200型plc給出了硬體設計的總體規劃，編制出研配液壓機動作控製程序，在編程中著重研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。
  6. With the trend of openness and integration of globlal economy, exchange rate is playing more and more important role in influencing the allocation of global resources. the sensitivity of the price of tradale goods to exchange rate fluctuation becomes the focus of international economics because it is a critical vector and transmitter when an economy is confronted of exogenous impact. traditional international economics theory assume that nominal exchange rate fluctuation has complete pass - through effect, namely it ’ s change will introduce proportional change of tradable goods, then it will influence such macroeconomic vector as term of trade, import and export, inflation, employment, productivity, income allocation, and so on. from a microeconomic angle, including pricing to market, innovative behavior, menu cost and sunk cost, the paper probe into the pricing model of international enterprices under floating exchange rate and testify the incomplete pass - through of exchange rate and it ’ s detailed reason, then discuss the inspiration it has on china. it ’ s believable this kind of research will play a big part in china ’ s exchange rate scheme and some macroeconomic problems such as exchange rate tranmitting channel and effects, exchange rate fluctuating behavior

    傳統的國際經濟學理論認為，名義匯率的波動具有完全的傳遞性（ completepass - through ） ，即它的變化會引起同比例的進出口貿易品相對價格以及貿易品和非貿易品相對價格的變化，然後通過需求變動的支出轉移效應（ expenditureswitching ）來影響國內經濟的諸多宏觀變量，如貿易條件、進出口貿易額、通脹水平、就業量、勞動生產率以及收入分配等，本文從依市定價（ pricingtomarket ） 、創新行為、菜單成本以及沉澱成本等四個不同的微觀角度，通過對浮動匯率下國際壟斷競爭性生產廠商的定價模型具體而透徹的探討，論證了匯率的不完全傳遞性並深入分析了決定匯率傳遞彈性的重要影響因素，闡述了該理論對人民幣匯率的啟示，這樣的研究會對我國今後的匯率政策以及匯率的傳導機制、傳導效應、波動行為等宏觀經濟問題起到重要的作用。
  7. The 4th order mathematic model of the load simulator is established and its linear form is obtained by linearizing at operating conditions. also the coefficients of the linear model are calculated and discussed, based on measured characteristics of the proportional valve

    然後採用了機理建模的方法建立了系統的四階數學模型，應用工作點近似線性化的方法，對系統進行線性化處理。
  8. Chapter 2 deduces the mathematical model of electropneumtic proportional / servo cushioning controlled system by theoretical analysis. because of the essential nonlinear characteristic of electropneumtic proportional / servo control system, the three orders model is validated right by system identification method

    然後用系統辨識方法來建立系統數學模型，驗證了氣缸緩沖控制系統用三階模型描述較合理，這為後面控制策略設計提供了依據。
  9. Main frame system, hydraulic control system and electronic controller design method are presented in detail. in chapter 3, the precious mathematics model about electro - hydraulic proportional control system of material testing machine is proposed. the digital simulation and theoretical analysis of load control system, position control system and extension control system are discussed according to various load type

    第三章給出了材料試驗機負載適應控制系統的數學模型，並針對不同的負載類型，對試驗力控制系統、位置控制系統及變形控制系統進行了詳細的理論分析及計算機模擬，並對理論分析和模擬結果作了討論和總結。
  10. With regard to the flow regulation of the best - effort traffic, the controllable traffic in high speed computer communication networks, the present paper proposes a novel control theoretic approach that designs a proportional - integrative ( pi ) controller based on multi - rate sampling for congestion controlling. based on the traffic model of a single node and on system stability criterion, it is shown that this pi controller can regulate the source rate on the basis of the knowledge of buffer occupancy of the destination node in such a manner that the congestion - controlled network is asymptotically stable without oscillation in terms of the buffer occupancy of the destionation node ; and the steady value of queue length is consistent with the specified threshold value

    本文從控制理論的角度出發，針對計算機高速網際網路中最大服務交通流即能控交通流的調節問題提出了一種基於多速率采樣的具有比例積分（ pi ）控制器結構的擁塞控制理論和方法，在單個節點的交通流的模型基礎上，運用控制理論中的系統穩定性分析方法，討論如何利用信終端節點緩沖佔有量的比例加積分的反饋形式來調節信源節點的能控交通流的輸入速率，從而使被控網路節點的緩沖佔有量趨于穩定;同時使被控網路節點的穩定隊列長度逼近指定的門限值。
  11. The existing fast packet schedule algorithms are almost the proportional fairness fast packet schedule algorithms, but these algorithms either are not able to guarantee the quality of the service or can ’ t be implemented easily in the real product. concerning these issues, the paper will be dedicated to the creative research of the proportional fairness fast packet schedule algorithm within the wcdma high speed downlink packet access. it includes : 1 ) summarizing briefly the wcdma high speed downlink packet access technology ; 2 ) analyzing the research and development situation of fast packet schedule algorithm of the wcdma high speed downlink packet access technology within recent years and giving comments ; 3 ) establishing the fast packet schedule model of the wcdma high speed downlink packet access technology on the base of timely packet schedule model and the principle and procedure of wcdma high speed downlink packet access technology ; 4 ) bringing forward the proportional fairness fast packet schedule algorithms for different scenarios and performing simple analysis ; 5 ) creating the fast packet schedule simulation platform according to our fast packet schedule model to analyze and verify the proposed proportional fairness fast packet schedule algorithms

    本文正是針對上述問題，對wcdma高速下行分組接入技術中部分公平快速分組調度演算法進行創造性探索，主要內容為: 1 ）對wcdma高速下行分組接入技術進行了簡要的歸納、總結; 2 ）對近年來的有關wcdma高速下行分組接入中的分組調度演算法的研究狀況進行總結、分析，指出其優、缺點; 3 ）在timely等分組調度模型的基礎上，結合wcdma高速下行分組接入技術的工作原理和過程，建立了wcdma高速下行分組接入分組調度模型; 4 ）分場景地提出了簡潔、有效、服務質量確保的部分公平快速分組調度演算法，並進行分析; 5 ）在wcdma高速下行分組接入分組調度模型的基礎上創建了快速分組調度模擬平臺，對我們的演算法進行模擬、分析、驗證; 6 ）與其他典型的演算法進行模擬比較，分析各自的特點和性能;模擬結果表明，我們的部分公平快速分組調度演算法能夠達到各場景的設計要求和目標。
  12. In part iv, a kinematics model for 3d guidance problems is derived. then pure proportional navigation, approaching method, and fuzzy logic algorithm are combined to develop a three - dimension fuzzy guidance law. finally, this thesis expounds the modeling technology of 3d objects in computer animation simulation and the method of using opengl engine in visual c + + environment

    第四部分建立了三維空間中導彈追擊目標的運動學關系模型，分析了兩種古典導引律（平行接近法和比例導引法）的優缺點，在此基礎上提出了一種三維組合導引律，然後用模糊邏輯對其進行了優化，獲得了一種性能更為優越的三維模糊導引律，最後通過模擬證明該方法的優越性。
  13. A on - identify model of proportional valve pressure controlled system was established though analyzing the configuration of dbetr type proportional pressure relief valve firstly, and then using classical step response method to identify system parameter, a practicable system simple model was deduced at last

    摘要從dbetr型比例壓力溢流閥結構出發，先建立比例閥控制壓力系統的待辨識模型，再採用經典的階躍響應法辨識系統參數，得到工程上適用的系統簡化模型。
  14. Therefore, it is proved that the control with high - speed on - off valves can realize the servo control function that be carried out with analog control whose control flowrate is proportional to is value. secondly, the paper builds up the mathematics model of the normal pneumatic servo system based on the symmetry structure, and the main characteristic parameters are analyzed and then introduce the theories to increase

    論文基於易於進行分析的對稱結構的高速開關閥閥控氣缸，建立了氣壓伺服系統動力機構的數學模型，分析了其主要性能參數，提出了提高純氣動伺服系統阻尼比的方法，並從理論上分析了其實現的可能性。
  15. The test results indicated that : crack similitude of reinforced concrete simple beams is not equal to model scale under the working load ; when the amount and surface shape of reinforcing bar are same, the similitude of crack width, crack amount and crack spacing of reinforced concrete simple beams of different scales are all nearly equal to the square root of model scale ; when the amount and surface shape of reinforcing bar are different, the similitude of crack amount and crack spacing are still nearly equal to, whereas the crack width is not only approximately proportional to, but the influence of the amount and surface shape of reinforcing bar on crack width should be considered also at the same time

    試驗結果表明：在使用荷載下，鋼筋混凝土簡支梁的裂縫相似率並不等於幾何相似比；當鋼筋根數及形式相同時，不同模型比尺下的鋼筋混凝土簡支梁的裂縫寬度、裂縫條數及裂縫間距的相似率，均約等於模型幾何相似比的平方根；當鋼筋根數及形式不同時，裂縫條數及裂縫間距的相似率仍然約等於，而裂縫寬度的相似率近似與成正比，但應同時考慮鋼筋根數與鋼筋表面形狀對裂縫寬度相似率的影響。
  16. Extension of optimal control of proportional reinsurance model with dividend process

    帶有分紅過程的比例再保險最佳控制模型之推廣
  17. Extension of optimal control model for proportional reinsurance with dividend and borrowing process

    帶有分紅和借貸過程的比例再保險最佳控制模型之推廣
  18. An optimal control of proportional reinsurance model with borrowing process

    考慮借貸過程的比例再保險最優控制模型
  19. Combining the traditional methods of market demand forecasts, such as linear regression, gray system, generalized weighted proportional combination forecasting, the author also have analysed and forecasted the actual example in this paper, which clearly response the applied logic of using petri net model to resolve the question of market demand forecasts. the founded model of petri net in resolving market demand forecasts has the characteristic of pertinence and universality. the key issue of those important problems often occurred in marketing is the market mix decision and regulate - control analysis and the question of how to enhance the market share of products is the foundation to resolve this issue

    論文還結合線性回歸、灰色系統、廣義加權平均組合預測等傳統市場預測方法對實例進行了分析和預測，充分清楚地反映了應用petri網模型進行市場營銷需求預測的應用邏輯，所建模型對于解決市場需求預測問題具有較強的針對性和普遍性；市場營銷組合決策和調控分析是市場營銷眾多問題中的一個重點，如何有效提高產品的市場佔有率是該問題的出發點。
  20. Mainly the ljroperties of proportional valve are discussed, 3. employing the mathematical model, computer simulation is carried out. the influence on system precision and the methods of decreasing the bad effect of the dead band are studied

    ?利用建立的數學模型，對系統進行了模擬，著重探討了比例閥死區對系統精度的影響及減小其負面影響的方法。
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