閉合問題 的英文怎麼說

中文拼音 [wèn]
閉合問題 英文
closed-ended question
  • : Ⅰ動詞1. (關; 合) close; shut 2. (堵塞不通) block up; obstruct; stop up Ⅱ名詞(姓氏) a surname
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : Ⅰ動詞1 (請人解答) ask; inquire 2 (詢問; 慰問) question; ask about [after]; inquire about [aft...
  • : Ⅰ名詞1. (題目) subject; title; topic; problem 2. (姓氏) a surname Ⅱ動詞(寫上) inscribe; write
  • 閉合 : close; shutting; synizesis; synezesis; occlusio; closure; make; occlus-; occluso-
  • 問題 : 1 (需回答的題目) question; problem 2 (需研究解決的矛盾等) problem; matter 3 (事故或意外) tr...
  1. Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box

    介紹了邊界元法在聲輻射上的理論及應用;並給出了運用邊界元法分析軟體求解振動聲輻射的過程。闡述了有限元法和邊界元法的耦理論及組分析方法,並以封鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序,並模擬了通過組方法分析封鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據,實現聲音的可聽化,隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。
  2. As we know, inverse techniques make blade ' s profile well compatible with its surface velocity distribution, however, they give designers big challenges that the ideal velocity distribution is hard to obtained and sometimes the non - physical solution, such as double covering of flow field or unclosed profiles, would come out. the proposed design procedure in the paper has avoided the disadvantage mentioned above. in this paper, a quasi - irrotational equation is used to describe the flow in cascade instead of the generally used irrotational equation

    眾所周知,一般的反和混的最大特點,是在給定的壓力面和吸力面上的壓力分佈或速度分佈條件下,直接得到葉片的幾何形狀,它可以使葉型型面與表面氣流參數有機結起來;其不足之處在於,對設計者而言,很難給定理想的葉片表面壓力分佈或速度分佈,並且有時會得到一個非物理解,如:得出的初始葉型可能會出現前緣、尾緣不封的現象。
  3. 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

    雙缸船閘液壓啟控制系統要求解決同步控制,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。
  4. At the same time, the diophantine matrix equation is closed, which has strengthen the velocity of control, so the rapid system ' s control is got ; in addition, because the synthesis solution with artificial intelligence technology and adaptive control technolo - gy together is adopted, the whole loop system ' s ability of learning and adaptation is strong and the system ' s intelligence level is impro - ved, so the robustness ability is got

    因此加快了控制速度,較好地解決了控制系統的快速性;另外加之此控制方案採用了人工智慧技術和自適應控制技術相結的方法,增強了整個環控制系統的學習能力和自適應能力,提高了系統的智能水平,從而使環系統具有了強魯棒性的特點。
  5. Infinitude liability the property right relationship with " stand - by " enterprise. the problem of partner ship enterprise " s property right is original property right is not clear, property right is single and close still infinitude liability the property right relationship with " stand - by " enterprise and the inherit of enterprise. stock company " s problem is the separate of stoke ownership right and manage right is not separate still

    具體而言,個人獨資企業是產權完全單一、封,無限責任,與掛靠企業脫鉤時產權關系的不明晰夥企業的是初始產權界定不清晰,產權仍舊單一、封,無限責任,與掛靠企業脫鉤時產權關系的不明晰以及企業繼承;股份制企業的是在實現股份化過程中,仍存在的所有權與經營權並未分離,委託-代理關系不明確,企業繼承
  6. He said as a precaution, u. s. consulates in three pakistani cities, karachi, peshawar and lahore had been temporarily closed, but that local american residents are being kept informed about safety and security issues through so - called warden messages from the diplomatic posts

    他說以防萬一,美國把在巴基斯坦三個城市卡拉奇、白沙瓦和拉爾的大使館暫時關,但是當地的美國居民正通過來自外交郵件所謂的「區長訊息」得到的關于安全的通知。
  7. Secondly, nonlinear threshold of two - dimensional rt instability was analyzed in planar and cylindrical and spherical geometries. density amplitude was defined relating to instable interface and formulae of nonlinear threshold values for rt instability in three geometries were given, then the lared - s code was used to simulate two - dimensional rt instability in three geometries and simulation results agreed well with the formulae

    其次,討論了二維平面、柱和球幾何中rt不穩定性發生非線性偏離的閾值,給出了三種幾何中密度擾動振幅的非線性值公式,並且用lared一s程序進行了檢驗,計算結果表明柱和球幾何中的模藕機制與平面幾何不同,存在幾何效應的影響。
  8. Although diss in many countries take fdic as the original version, and their basic objectives are the same on the whole, which are safeguarding the depositors " interests, especially the most depositors " interests who have less deposits, setting up a reasonable procedure with which the banks having serious problems and b eing closed to fail can be disposed of, strengthening the public ' s confidence with banks and keeping the bank system stable, there are many differences among them because of the different national conditions

    盡管這些國家多以美國的聯邦存款保險公司為藍本,且基本目標相同,即保護存款人利益,尤其是保護居於多數的小額存款人的利益;建立對出現嚴重的瀕臨倒的銀行進行處置的理程序;提高公眾對銀行的信心,保證銀行體系的穩定,但由於具體國情不同,各國的存款保險制度存在較大差異。
  9. According to the present situation and questions of the negotiable securities investmental fund in china and according to the foreign experience, i put forward 3 proposals : lead the closed fund into opening ; explor the cheap cost about the opened negotiable securities investmental fund ; carry out the third index fund

    本文由我國證券投資基金的現狀及其發展中出現的入手,結國外證券投資基金業發展的先進經驗,提出了進一步完善我國證券投資基金的具體可行的途徑。其具體途徑主要包括:引入封式基金的開放機制、探索低成本的開放式基金發展之路、推出第三代指數交易基金等三個方面。
  10. The main question which often arises concerns the evolution of the pressure drop and the filtration efficiency during the filter clogging

    氣壓逐步小以及過濾器進程中的過濾效率降落是常常呈現的重要
  11. Initially, this led to the shut - down and draining of the system ; however, in the longer term, modifications to the grey water system, possible incorporating reed - bed technology, were planned to deal with this problem

    最初,這導致向下關並且逐漸消耗系統;然而,從長遠來看,計劃修正灰色水系統,可能採用併蘆葦床技術處理這個
  12. 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控制的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
  13. However, the forecast ability of the mathematical model is restricted since it is difficult to consist of the closed equations in a large amount of flow problems in hydraulic engineering the synthetic model, which combines the experimental and numerical simulation, is normally used for these complicated problems the results are satisfied in hydraulic engineering

    但由於水利工程中相當數量要研究的水流過程還不能組成封的方程組,因而使得數學模型的預報能力受到限制。目前,在許多情況下,常採用模型試驗和數值模擬相結的復模型方法解決復雜的工程,並能獲得比較滿意的結果。
  14. The control models are the standard mm4 using the blackadar high resolution boundary scheme, the bulk boundary scheme, the kuo cumulus parameterization scheme and explicit clouds

    處理湍流擴散,分別以原mm4中有雲和無雲的水份處理方案作為控制方案。
  15. The main steps of the rectification - joining method for broken tube piles were as follows : to rectifying sloping piles, closing cracks, concrete filling and quality testing, with some ways to deal with the problems during practical manipulation

    處理傾斜斷裂的管樁的糾直接樁法的主要實施步驟可總結為斜樁糾直、縫隙、填芯補強和質量檢驗,並得出在具體操作過程中各種的解決辦法。
  16. Specifically, according to the w - w five parameters failure theory, the fracture criterion of crack is established, and the state of crack ( open or close ) is judged by the values of the crack strain. combining the two points, the predict - model about the failure of concrete material is established. this predict - model can predict 16 failure forms, and basing the different failure form predicted after crack, the stress - strain relationship matrix of concrete material is adjusted

    具體來講,根據w - w的五參數混凝土破壞理論,建立混凝土的開裂準則,根據開裂應變值來判斷裂縫是張開還是,從而在兩者基礎上建立了裂縫的開裂預測模式,總共有16種開裂模式;裂后根據具體的開裂模式及殘余抗剪能力來調整混凝土的本構關系矩陣,即用等效剛度代替原有剛度,考慮到垂直於裂縫方向的剛度為零,這樣會使裂后的總剛出現病態,為此文中通過引用鬆弛系數來對出現裂縫的單元進行預處理,一方面可解決因過大的舍入誤差導致計算結果的不可信,另一方面就是可加速收斂。
  17. The main work in this paper includes three parts : the theory research on partially - cavitating and super - cavitating axisymmetric bodies, the numerical computations and experimental investigations on partially - cavitation and super - cavitation on axisymmetric bodies. after finishing the study of theory and experiment on the partially - cavitation and super - cavitation for axisymmetric body, i use the potential flow theory to build the mathematical model on the partially - cavitation and super - cavitation for axisymmetric body. many cavity wake models, such as pressure recovery close model, riabouchinsky model and re - entrant jet model, are studied seriously

    本文在深入研究了回轉體局部空化與超空化理論及實驗結果的基礎上,基於勢流理論,建立了回轉體局部空泡和超空泡流場的基本數學模型,通過對kinnas和fine 、 uhlman以及jiedang和gertkuiper等人基於二維水翼提出的壓力恢復模型、鏡像板模型和回射流模型等空泡尾流模型進行了逐一的研究分析,發現其中的壓力恢復模型較適用於模擬回轉體空泡尾部流場,並選用此空泡尾流模型作為求解回轉體空化流場正與逆的數學模型的組成部分。
  18. Especially in the modern society, the external and internal environment of business has become more complicated. under this circumstance, some multinational companies such as enron and world com bankrupted because of problems in business operation and finance. and it is important to set up and perfect company management structure. therefore, it is significant to find some efficient measures to develop the function of internal auditing

    特別是在世界經濟趨向一體化、企業所面臨的內外環境日益復雜、安然、世界通訊等一大批跨國公司因經營、財務相繼破產、倒的當今社會,建立和完善公司的治理結構、建立、健全公司的現代企業制度的呼聲再次高漲,此時,認真審視和深入研究作為現代企業制度與公司治理結構重要組成部分的內部審計的功能發展軌跡,尋求充分發揮我國內部審計功能的理對策,有著極其重要的現實意義與理論意義。
  19. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向,本論文重點做了以下幾個方面的工作,目的在於提高dtc系統的綜性能: ( 1 )提出一種新型的速度磁鏈觀測器,新型的速度磁鏈觀測器採用自適應環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度,並且根據popov超穩定性理論推導出轉速的新型自適應收斂律; ( 2 )改善系統的低速運行性能,主要從提高低速時對定子磁鏈的估計精度入手,提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數; ( 3 )採用數字信號處理器dsp實現系統全數字化硬體控制,結ti公司生產的tms320lf2407晶元,設計了直接轉矩控制系統的實驗裝置; ( 4 )提出了基於sercos總線網路化分散式的直接轉矩控制系統, sercos ( serialrealtimecommunicationsystem )是目前最適同步和協調控制的串列實時通信協議; ( 5 )基本勾勒出整個控制系統的硬體和軟體設計基本框架,詳細描述一些實驗中的具體的細節
  20. The influence caused by geometric nonlinear behaviors should be considered in forward analysis and backward analysis during construction processes. only the reasonable finished bridge state should be got by approach iteratively of forward analysis and backward analysis, the non - circled problems of the results between forward analysis and backward analysis will reach to the minimum degree

    2 )施工階段的正裝和倒拆分析中考慮斜拉橋的幾何非線性因素影響,而且必須經過正裝與倒拆的反復迭代才能得到理想的成橋狀態,才能將正裝倒拆計算中結構的不閉合問題減小到最低限度。
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