problem modeling 中文意思是什麼

problem modeling 解釋
問題建模
  • problem : n. 1. 問題,課題;疑難問題;令人困惑的情況。2. 【數、物】習題;作圖題。3. (象棋的)布局問題。adj. 1. 成問題的;難處理的。2. 關于社會問題的。
  • modeling : n. 製造模型的方法,造型(術);塑像術;【美術】立體感(表現法);模特兒職業。 the modeling of one's features 某人臉部的形象。
  1. In accordance with the problem that the fcm algorithm is quite time - consuming for search out cluster cancroids and may not be suitable for on - line modeling and control. this dissertation proposed an improved fuzzy identification method based multistage random sampling fuzzy c - means clustering algorithm ( mrfcm ). it has higher approximate precision and the cpu time has slowed down sharply compared with the common fuzzy

    Johnyen和liangwang介紹了幾種應用於模糊模型的信息優化準則,本論文在此基礎上對統計信息準則進行一些改進,並與快速模糊聚類和正交最小二乘方法結合,提高了模型的辨識精度和泛化能力。
  2. In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane

    本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題,具體成果和創新點如下1 、根據流體力學理論,建立了螺旋槳推進器的動態模型,它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量,以電機施加轉矩為輸入,螺旋槳推力t和轉矩q為輸出。
  3. By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper

    本文結合常州新閘防洪控制工程水工模型試驗,系統分析了浮箱門在靜水和動水中的穩定性及其影響因素,指出靜水穩性和動水穩性的不同特點;試驗測定了浮箱門動水運行時的受力情況,給出並分析了定位過程轉動力的變化過程曲線;根據浮箱門啟閉速度與門體和岸墻之間撞擊力大小的關系,選擇合理的動力設備,為設計和工程實踐提供可靠依據;分析浮箱門難以穩定上浮的原因,並給出解決方案。
  4. Since the problem of feature extraction from 2 - d radar data can be approached as a parametric modeling and parameter estimation problem, the 2 - d type - discriminated geometric theory of diffraction based ( td - gtd ) model that discriminate between the localized and distributed scattering centers of the target is presented

    在對目標散射中心的建模與參數估計中,提出採用更貼近散射機理的、特徵含量更為豐富的二維散射中心模型?區分局域性與展布式散射中心類型的幾何繞射理論( td - gtd )模型。
  5. This novel method has good operational easiness and keeps the consistency problem simpler than mre by enforcing unidirectional map between entities in different r esolutions. currently most parallel and distributed simulation system design employ different modeling methodology and tools in simulation modeling and simulation software system design

    當前大多數pads系統的模擬建模通常使用專用的模擬語言或庫來描述模擬對象的行為和關系,這樣在不同建模框架中建立的模擬模型彼此間缺乏通用性,因而可重用性也較差。
  6. It is not hard to conclude that the theory can also be used to solve the problem of reparametrization of curves and surfaces. the fifth part is the expression of normal curves and surfaces in the form of bsc and bbc. the last part involves the applications of the theory of bsc and bbc curves and surfaces in the field of reparametrization of curves and surfaces and entitative modeling

    主要研究bbc函數的構造、表示和性質, bbc曲線曲面的表示方法,曲線曲面的參數方程以及它們的性質和特徵, bbc曲線曲面b zier曲線曲面的關系, bbc曲線曲面的相關演算法;第四部分是tbsc和tbbc曲線曲面理論,涉及tbsc和tbbc函數的概念, tbsc和tbbc曲線曲面的方程及其與b樣條曲線曲面以及b zier曲線曲面的關系;第五部分是常用曲線曲面的bsc和bbc表示;第六部分是bsc和bbc曲線曲面理論在曲線曲面重新參數化中的應用和實體造型中的應用。
  7. The problem of modeling and control is a attention focus of people. the boiler water lever is importance index of industry boiler safety and satabilization. it is importance meanimg to ensure water level in definite range for increasing quality of steam and reducing wastage of equipment and insuring safety of whole hert - power - net at present, the mostly method is adopt the routine pid control

    鍋爐的建模與控制問題一直是人們關注的焦點,而汽包水位是工業鍋爐安全、穩定運行的重要指標,保證水位控制在給定范圍內,對于提高蒸汽品質、減少設備損耗和運行損耗、確保整個網路安全運行具有重要意義。
  8. Reverse engineering is used widely in the field of science study, technology, biomedicine etc, and is used for settling the problem of geometric size measurement, transmogrification measurement, scathe measurement, surveilling the quality of manufacture, profile modeling, cad / cam, and physic diagnosis etc. in these techniques, the deformable active model is a hot point research

    反求工程技術廣泛應用於科學研究、工程技術與生物醫學等領域,以解決或輔助解決幾何尺寸度量、變形測量、振型測試、損傷測定、產品質量監控、實物仿形、 cad cam以及醫學診斷等諸多問題。在用於輪廓提取的技術中,可變形活動輪廓是目前國內外研究的熱點。
  9. Finite volume method is appilied in numerical modeling of the flow in no - pressure tunnel of high water reservoir in this paper. i select standard k - turbulence modeling that put forward by launder and spalding in 1972 by weighted poly - turbulence modeling. the difficulty is that there is free surface in flow, but free surface problem ' s calculating region is indefinitely

    本文利用有限體積法對高水頭下水庫無壓泄水洞水流進行了紊流數值模擬,根據多種紊流模型的優缺點進行比較,選擇了launder和spalding於1972年提出的標準的k ?紊流模型。
  10. This dissertation studies the problem of dynamics modeling, dynamical response, and distribution of moving mass for a re - entry vehicle ( mmcrv ) under the background of national natural science fund project “ precision control and guidance for moving mass control of a re - entry vehicle based on the virtual displacement concept ”

    本論文以國家自然科學基金項目「基於虛位移概念的變質心再入飛行器精確制導問題研究」為背景,研究基於變質心控制的再入體動力學建模、動力學響應和落點分佈等問題。
  11. The following is the main content of the study : first, as known to all, the " bidding situation " that includes the factors must be considered during the bidding procedure in construction industry is always hard to make clear. the paper uses the method of layer contribution analysis to solve the variable selection problem in the bidding procedure for the first time. on the one hand, the difficulty of setting the right function during the modeling procedure is avoided, and on the other hand, the types of function in regressive modeling are extended, which makes the study of variable selection is more general

    全文主要的研究內容和研究成果概括如下:針對建築行業投標報價過程中難以確定「投標形勢」的難題,首次將層次貢獻分析法應用於投標報價過程中的變量選擇問題,一方面避免了在建模過程中如何正確設定函數形式的困難,另一方面也擴充了回歸建模研究中的函數類型,使變量選擇研究更具有一般性,模擬結果表明:使用層次貢獻分析法刪減變量后的投標報價模型更加符合實際的報價需要。
  12. Dewey and bacuwa ^ arekcapobuy cyxouy h cku u " s educational theories and the modeling, i present the teaching aims that correspond to the sustainable development strategy and demands of quality - oriented education, and develop the students " critical ideas, and develop their speaking, organization and writing abilities. developments of cooperation ; and students " consciousness of caring environment and society, are all important strategies when teaching sustainable development and the quality of using sustainable development strategy to settle all kinds of problem. i propose two educational models for implementing sustainable development strategy

    本文在杜威的教育思想、蘇霍姆林斯基的教學思想以及建構主義的指導下,提出了符合可持續發展思想與素質教育的要求相一致的教學目標:培養學生的思維能力,尤其是批判性的思維能力;培養學生的口頭表達能力、組織能力以及書面表達能力等多方面能力;培養積極的合作態度;培養學生關注自己周圍的環境、關心社會的意識以及運用可持續發展的思想去認識、分析問題的素養。
  13. Some related techniques and applications on supply chain are described. through studying the order - decomposing process simulation, this dissertation defines the two agent classes : coordination & resource agent, maps the order - decomposing process into a real - time control process formed by a group of agents, proposes finite state machine as a kind of ideal modeling approach used to analyze the real - time control process, describes the conversation rules of agent conversation classes, identifies agents & conversation rules and develops the conversation models by using the framework provided by jafmas, jdk1. 1 integrated development environment & java. according to the structural characteristics, this dissertation transforms the optimization of series supply chain design into multi - stage decision - making problem and develops an optimization model for it

    在對國內外供需鏈研究與應用進行大量調研分析的基礎上,本文給出了供需鏈的定義;闡述了供需鏈管理范疇的內涵、外延及其管理目標;綜述了供需鏈研究的現狀;在對訂單處理流程分析的基礎上,定義了兩種代理類:協調代理和資源代理,創見性地把訂單分解?匹配過程映射為一個由多個代理組成的實時控制過程;針對實時控制過程瞬時狀態難以描述的特點,本文首次把有限狀態機fsm應用到訂單分解?匹配過程中,用以描述代理會話類的會話規則;在jafmas平臺上,利用jdk1 . 1集成開發環境以及面向對象編程語言java設計了jafmas的面向對象代理模型,實現了代理會話規則的有限狀態機模型。
  14. The dissertation proposes originally the idea of decomposing the time - variant load to solve this problem. first, the time - variant load is decomposed into the time - variant load characteristic and the time - variant load model due to the modeling method. second, the multi - curve approximation method is proposed to identify the load parameters, which to a great extent, reduces the effects on the time - variation of the load model from modeling method

    針對負荷的時變性,論文首次提出了將負荷時變性分解的思想,首先將負荷的時變性分解為負荷特性的時變性和由建模方法引起的負荷模型的時變性,然後提出了多曲線擬合參數辨識方法,很大程度上消除了建模方法引起的負荷模型的時變性。
  15. Computing with words, constraint - based problem solving, fuzzy modeling, granular computing, information granulation references 1 mamdani e h. application of fuzzy algorithms for control of simple dynamic plant

    由於模糊限制式包含了傳統的數學方程式不等式,更涵蓋模糊方程式不等式關系式邏輯表達式等。
  16. Annealing cooling processes are classified in accordance with material and thickness of each steel coil in annealing plan, then multi - input and single - output modeling problem for cooling time prediction of hood - type annealing furnace is simplified to a group of single - input and single - output modeling problem

    摘要按照退火計劃內各鋼卷的鋼種和厚度對退火中的冷卻工藝進行分類,將罩式退火爐冷卻時間預報的多入單出建模問題化為一組單入單出建模問題。
  17. The first part comprises industrial pta oxidation process modeling, residual fluid catalytic cracking process modeling, complex distillation modeling and analysis, the application of pta oxidation process soft - sensor technology. in the second one, the infeasibility degree based genetic algorithm is proposed to handle constrained optimization problem in engineering cases and the neighborhood and archive based genetic algorithm and its variant are proposed to treat the multi - objective optimization problem. with that, the pta oxidation process is regarded as a benchmark for the application of the proposed multi - objective optimization genetic algorithm

    論文內容分為兩部分,第一部分對包括三個典型的工業過程, pta氧化反應器、渣油催化裂化反應系統和復合式精餾塔進行分析、建模以及pta氧化過程的軟測量工程實施;第二部分分別提出了基於進化演算法解決工業過程中普遍存在的約束優化問題和多目標優化問題的過程優化演算法? ?基於不可行度選擇遺傳演算法和基於鄰域和存檔操作遺傳演算法,並利用該演算法對工業pta氧化過程操作進行多目標優化研究。
  18. The double inverted pendulum system is a nonlinear and unstable control problem. obviously the study of a typical, nonlinear and unstable system has the more important meaning on both the theory and methodology. modeling for the double inverted pendulum has the instructional function to study the stability of the system

    顯然對一個典型的非線性、不穩定系統的研究成果無論在理論上或是在方法論上都有重要的意義,而二級倒立擺數學模型的建立對研究其穩定性具有指導作用。
  19. This paper mainly works on the problem of modeling, control and guidance for a side jet and aerodynamics compound control intercept missile

    本文的研究主要是圍繞著直接力和氣動力復合控制攔截導彈的建模、控制和制導所展開的。
  20. 3 based on the shape of conic plug, the profile modeling - annulus equipment which can make plug in a line is designed. this equipment can not only solve the plug lining - up problem in mechanizing way when plug seedlings are transplanted, but also can raise the working speed of no - tillage transplanter, and reduce the working intensity of operator

    3利用圓臺形缽體的外形特點,採用仿形導向輪式排隊裝置,解決了栽植過程的缽苗機械化排隊問題,提高了免耕栽植機的作業速度,減輕了操作人員的勞動強度。
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