統計測試模型 的英文怎麼說

中文拼音 [tǒngshìxíng]
統計測試模型 英文
statistical test model
  • : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
  • : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • : 名詞(古代占卜用的器具) astrolabe
  • : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
  • 統計 : 1 (對有關數據的搜集、整理、計算和分析) statistics; census; numerical statement; vital statistic...
  • 測試 : test; testing; checkout; measurement
  • 模型 : 1 (仿製實物) model; pattern 2 (制砂型的工具) mould; pattern3 (模子) model set; mould patter...
  1. This paper discusses the designing and making of the dynamic testing systems of engine electronic control system. base on the construction and operation principle of santana 2000gsi m3. 8. 2 engine electronic control systems, design and manufacture led circuit of dynamic testing and fault imitating electronic control unit. on the inspect board, design and equip with motronic 3. 8. 2 ecu i / o measuring joints, design and set up obd - ii diagnostic communication link, design and install fuel pressure inspecting meter. depend on the obd - ii diagnostic communication link and ecu i / o measuring joints, this dynamic testing system can inspect engine electronic fuel injection system, distributorless ignition system, idle speed control system and evaporative emission control system, and can inspect m3. 8. 2 sensors, ecu and actuators, and can interrogate fault memory and erase fault memory ; and can analyse data stream ; and can carry out fault imitating. besides, this paper analyses sensors and actuators typical fault w aves

    2電控單元電路連接器設製成輸入輸出電子控制檢端子,並在檢面板上布置了obd -診斷插座和燃油壓力表。使該動態能實現對電噴發動機的燃油系、直接點火系、怠速控制系和燃油蒸氣排放控制系的動態檢;並通過obd -診斷座、 ecu輸入輸出檢端子和故障擬處理單元實現對電噴發動機電控系各傳感器、電控單元、執行器進行故障碼讀取與清除;動態數據讀取和波形和故障擬等。此外,本論文還分析了傳感器和執行器典故障波形。
  2. In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test

    然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動驗及相關課題的研究工作,本文以截頭錐擬地基,對地基(巖基)承載力的動法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢川的參數:針對日前巖土工程界應用樁基設規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性的有限單元法算、土力學算及深斤載荷驗四方面進行了深入討論;本文作者根據多年現場載荷驗的工程實踐,對深井荷驗裝置的核心部分? ?反力裝置,設了側壁支撐反力加載系,該加載系具有實用、簡便、穩定及安個等優點。
  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驗,系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;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. This thesis tries to update the cmdsr system to achieve the characters below : real - time, better robust, higher recognition rate, non - special - man. considering the disadvantages of traditional improved spectrum subtraction speech enhancement, this thesis proposes the theory of fuzzy spectrum subtraction based on the fuzzy theory and improved spectrum subtraction speech enhancement ; as for the difficulties of detecting the endpoint of speech signal, the thesis gives the table of initial and the improved parameters, with which we can confirm the endpoints of mandarin digit speech ; the thesis puts forward two - level digit real - time speech recognition system, the first level is based on discrete hidden markov model which is linear predictive coding cepstrum ( lpcc ) and difference linear predictive coding cepstrum ( dlpcc ), the second level is based on formant parameters ; as for the realization of hardware, the thesis depicts the realization of every part of cmdsr based on the tms320vc5402 in detail ; as for the development of software, the thesis gives the software design flow chart of cmdsr, simulates the basic theory with matlab language and gives the simulation results

    針對傳的「改進譜相減法語音增強」參數設定單一、環境適應能力差的缺點,提出了一種利用糊理論和「改進的譜相減法」結合的「糊譜相減法語音增強」 ;針對語音信號端點檢困難的特點,通過matlab驗,給出了能夠準確確定數碼語音端點的初始和改進參數表;提出了利用基於線性預編碼倒譜參數和差分線性預編碼倒譜參數相結合的離散隱含馬爾可夫進行第一級識別、利用共振峰參數進行第二級識別的兩級漢語數碼語音識別系,在保證系實時性的同時,實現連接漢語數碼語音識別系識別率的提高;在硬體實現上,詳細闡述了基於tms320vc5402的連接漢語數碼語音識別系各部分硬體設;在軟體開發上,給出了連接漢語數碼語音識別的軟體設各部分的流程圖,並對各部分進行了matlab擬,並給出了擬結果。
  5. Simox soi wafers produced by ion implant processes were used in this experiment. the results for simox soi samples we got here revealed that all the three structures are valuable for soi electrical characterization and sis structure has irrefragable advantage over the other two structures. the soi transistors have been the key devices for achieving the low voltage operation and low power consumption, because of the small junction capacitance, the small s - factor, and the small substrate bias effect

    這三種分別是:第一,將傳的mos電容結構應用到soi材料上來進行c - v , i - v,分析算soi材料的重要電學性能參數;第二種,針對soi材料的特殊結構,為了適應生產線上對無損soi園片進行電學性能的要求,應用mosos結構來對soi材料進行電學性能表徵。
  6. The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore

    第一章回顧了孔結構在當今國內外的研究現狀,包括混凝土孔方法的研究、孔結構的研究及孔結構與強度關系的研究現狀,介紹了孔結構研究方面的一些最重要的成果;第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料孔技術的原理,並討論了水泥基多孔材料孔隙分析中常用的表徵參數,也說明了壓汞法孔對研究結果的影響因素,指出了壓汞法在孔結構研究中的局限性;第三章是著重分析了孔隙率與強度關系的發展歷程,並對已有的進行了比較分析,指出了原有的不足之處;第四章在「綜合集成」的基礎上,提出了混凝土孔結構復合體和孔系的物理,並擬了該下由各單體並聯形成的復合體的斷裂過程,最後根據所建編制了相應的算程序,可根據輸入的孔徑分佈與水泥含量等參數,實現混凝土理論強度的算;第五章對第四章中出現的參數進行了相應的驗數據對比分析,根據回歸分析的方法得到了反映基體強度特徵的k值,並從理論上探討了水泥含量、彈性量和表面能的修正對混凝土強度算產生的影響,檢驗的正確性;第六章是結論與展望,根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。
  7. This paper also tested each model and system - the second loop of qinshan nuclear power station ( the second term ) , computed the balance point , tested the performance of step disturbance and runback loads for system ( no adding adjustment system ) , analyzing the factors effecting the first tiptop rotate speed of turb and time which the rotate speed reach the tiptop

    上,完成了穩態算、系階躍擾動驗、甩負荷驗(未加調節系)等,主要監控和分析了汽輪機動態特性中兩個重要參數:汽輪機第一飛升轉速、飛升時間。
  8. With the development of the network and the multi - processor system, the research, simulation and the impemeni of the system - level fault diagnosis which is the very important means to increase the reliability of the system, are becoming more and more important. on the system - leve1 fault diagnosis, based on the group theory of system - level fault diagnosis that has been put forward by pro f zhang, the paper constructs newly the theory bases, improves on the matrix method, reinforces and consummates group arithmetic of all kinds of test mode, for the first time, analyses and discusses the equation solution of all kinds of models, so al1 the consistent fault patterns ( cfp ) could be found, straightly and high efficiently, even if the sufficient and necessary condition of t - diagnosable is dissatisfied and the complexity of system - level fault diagnosis is greatly decreased, especialy in strong t - diagnosabl6 system. last the simulation system ' s function has been extended and the application hotspot and the development trend have been disscussed

    本人在張大方教授等人提出的基於集團的系級故障診斷的理論基礎上,重新構建了系級故障診斷的理論基礎,定義了系級故障診斷的三值表示;改進了系級故障診斷的矩陣方法,重新定義了矩陣、鄰接矩陣、結點對、結點對的相連運算、極大準集團和斜加矩陣,由此能直觀、簡便地生成集團和極大獨立點集;補充和完善了各類的系級故障診斷的集團演算法,通過定義集團邊和絕對故障集,簡化了集團診斷圖,由此能較易地找到所有的相容故障式,即使不滿足t -可診斷性,大大減少了系級故障診斷的復雜度,尤其是對強t -可診斷系;首次分析探討了各類的方程解決,由此從另一角度能系地、高效率地求出所有的相容故障式( cfp ) :擴充了系級故障診斷擬系的功能,快速、直觀和隨機地擬實驗運行環境,進行清晰和正確的診斷,同時提供大量的實驗數據用於理論研究,優化演算法和設
  9. In addition, the paper designs a bottom database model, selects a multi - aim strategy combining files with known data, and establishes dual interaction data model that has explicit conceptual structure and directly aims to geographic objects, and provides backing up enquiry language ( g - sql ). simultaneously, after analyzing and studying methods available for the under pipelines, the paper constructs survey adjustment calculation model, and according to the model, checks the survey of under pipelines. the results indicate that the model is suitable to actual requirement because it greatly increase calculation speed, meeting calculation accuracy requirement

    在此基礎上,對系的底層數據進行設,選擇了文件與成熟數據庫相結合的混合策略,併兼顧面向對象的數據庫( oodb )和可擴充數據庫( edb )的特點,建立了一個概念層次清晰、面向地理對象實體的雙層語義數據以及支持的查詢語言g - sql ,同時對地下管線的各種方法進行分析研究,建立了地下管線量平差,並以此對所勘的地下管線進行核算,算結果表明,不僅大大提高了核算的速度,同時在算精度上也符合核算的要求,是符合實際要求的關于量平差算的
  10. When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system

    在探討可靠性設與可靠性保障技術時,提出了石油井儀器的可靠性算新,從電氣和機械兩個方面,提出並闡述了應採用的可靠性保障技術及其使用方法:根據最新可靠性理論,建立了石油井儀器的可靠性系,探討了石油井儀器的可靠性指標及其獲取途徑,提出了推薦使用的石油井儀器可靠性指標( mwture , nolwnm , mtbf , mttf ) ;通過驗,得到了所設儀器的穩定工作時間( mwture ) 。在研究數據處理方法時,闡述了伽瑪信號的特徵,對量誤差類進行了檢驗;介紹了數字濾波的基本理論、數字濾波方法的概況,並進行了分析;對伽瑪信號數字濾波效果的影響因素及其對井曲線的影響進行了基本分析;從獲取平穩段真值、地層邊界的檢與處理兩個方面,建立了數字濾波效果的評價準則( rvi , rmse , sfi ) ,給出了相應的數字濾波方法及效果評價方法;探討了自然伽瑪信號數字濾波器的設方法,提出了適合自然伽瑪井的混合濾波方案,探討了混合濾波方案的實現途徑;通過對部分數字濾波方法的定量研究,給出了靈活可選的數字濾波系構成及實現流程;提出的三種濾波方案,將用於era2000成像井系,對自然伽瑪井數據進行濾波處理。
  11. The prediction of propeller - induced hull pressure fluctuation in non - uniform flow is studied by using theoretical calculation and model experiment systematically. an intact method and computer program for the prediction of unsteady cavitating propeller - induced hull pressure fluctuation in non - uniform flow is set up in this paper. the measurement of propeller induced hull pressure fluctuation in depressurized towing tank carried out in this paper is the first time inland

    本文從理論算和驗兩個方面系地研究了不均勻流場中螺旋槳空泡誘導的船體表面脈動壓力的預報問題,建立了一套完整的預報非定常空泡螺旋槳誘導的船體表面脈動壓力的方法和程序,並在國內首次完成了在減壓拖曳水池中進行空泡螺旋槳誘導的船體表面脈動壓力
  12. As the traditional navigation system ca n ' t satisfy the requirements of the autonomous underwater vehicles ( auv ) navigation and position. we study a depthometer - doppler - aided strapdown inertial navigation system ( ddsins ) in combination of the developments of periodic navigation technique and some practical problem posed by the mathematical and variation of output data of doppler, furthermore, the digital simulation and semiphysica test are made to verify the validity of the algorithm, the main research work are as follows : design of the strapdown inertial navigation system of auv

    由於傳的導航系很難滿足遠程水下航行器精確導航、定位的要求,本文在充分考慮使用特殊性的情況下,結合國內、外導航技術發展的實際狀況和發展方向,研究了水下航行器組合導航系的誤差,重點解決了因多普勒輸出數據周期長和周期時變而給導航算和濾波器設帶來的問題,並進行了擬和實物擬和實物結果表明本文所研究的設方案合理,可以達到某水下航行器導航、定位需要的精度。
  13. Therefore, the paper establishes the parallel computing platform and meets the demand of computing resources for large eddy simulation. it also studies the integration of cad / cam, grid generation system and cfd system, and brings the model computed in the paper into this system. on the bases of systematical and thorough numerical simulation researches in circular cylinder and the compares between instantaneous piv metrical results and numerical results of circular cylinder, the paper obtained some problems and several conclusions which should be noticed in les for making correct computatioa finally, by using these experiences and conclusions above and by putting them into an actual problem in engineering - optimized numerical simulation of static mixer, this paper achieved the turbulent high - level numerical simulation technique, i. e., system atical attempt in engineering application by les method

    為此,搭建了微機并行算平臺,解決了大渦擬對算資源要求;對cad cam 、網格生成與cfd系集成進行研究,並將論文中所要算的納入到此系內;在對圓柱繞流問題進行了系和深入的數值擬研究和對圓柱繞流瞬態piv量結果與數值算結果進行比較工作基礎上,得到大渦擬方法正確算所需要注意問題和若干結論;最後利用以上得出的算經驗和結論,通過對一個實際工程問題? ?靜態混合器優化的數值算,完成了cfd中湍流高級數值擬技術? ?大渦擬方法工程應用的系
  14. The research work that is innovative and advanced belongs to project application about software and hardware. for resolving question of realtime status information monitoring and measuring system of lines of communication on launch of aerospace, multi - line level measuring model 、 error - code rate measuring model and line - switch controlling model were designed and carried out basing on requirement of users. a reasonable scheme was brought forward for state of system 、 information processing and long - distance monitor and control

    本課題屬軟硬體結合工程應用項目,解決航天發射中通信線路狀態信息的實時監問題,在充分研究用戶需求的基礎上,設並研製了多路電平塊、誤碼率塊、線路控制交換塊,並就系工作狀態的建立、各類信息的處理和遠程監控提出了合理的解決方案。
  15. A method is proposed for the parameter identification of the viscoelastic internal dampers of the multirotor systems in this paper. the multi - rotor system is regarded as a composite structure. the impedance matching method in the substructure method for structural dynamic analysis is used for the dynamic calculation of the structure. the augmented lagrange method is applied to the iteration calculations of the characteristic determinant of eigenvalve equation of the system. and then the results of parameter identification can be obtained. upon the dynamic characteristics of the system, the method can reveal the influence of the gyroscopic moments of force precisely. in process of the analysis, the various properties of multi - rotor systems are made the best use of, so the measure of the modes parameters is avoided, the calculation is simplified. in addition, an efficient method is proposed to establish a dynamic model of multirotor systems with viscoelastic internal dampers. the calculating results are consistent with the experimental results satisfactorily

    提出了多轉子系的粘彈性中間彈支參數辨識的一種方法.該方法把多轉子系看作復合結構,用動態子結構分析的阻抗匹配法算動力學特性,用增廣拉格朗日乘子法迭代算系特徵方程的系數行列式,獲得系物理參數的辨識結果.該方法可以準確入陀螺力矩的影響,避免量振參數.在分析中,利用多轉子系的特性可簡化分析過程.文中還介紹了一種建立粘彈性彈支多轉子系動力學的方法.算結果與驗結果基本一致
  16. The empirical research in em forthers the acaden1ic thoughts of accrual - basis accounting, hastens the development of generally accepted accounting principles, and enriches the research measures in empirical accounting lots of literatures on em have been reported rece11tly however, researcheres have n ' t reached the consensus in most issues in this fieid much of the controversy over the interpretation of the literature ' s tindings is due to the extensive use of aggregate accruals models that mostly origil1ated from jones mode1 given the limlted theory, we have of how accruals behave in the absence of discretion, the task of identifying and controlling for potentially correlated o111itted variables is daunting indeed an alternative to study aggregate accruals is the 111ethodology for identifying earnings management developed by burgstahler and dichev ( l997 ) based on the distribution of earnings after management however, this measure is flawed by its silence about the form and extent of earnings management my dissertation intends to bridge the traditional aggregate accruals models and the new earnings distribution method, which is the first aim of this paper there is no doubt that earnings management is more rampant in china when compared with what has been documented for the west, since china ' s accounting standards are much too incomplete to of lbr clear guida11ce on many accounting transactions

    文章首先指出了研究盈餘管理的三種方法各自的優點及不足,然後創造性地發展了前人的研究手段,在傳的瓊斯及新的盈餘分佈方法之間找到了溝通的橋梁,並建立了一個嶄新的:瓊斯?閾值。通過對美國18 , 160家上市公司在1980 - 1999的20年間的40餘萬觀樣本的實證研究表明,美國上市公司與我國上市公司一樣也存在著以獲取正盈餘及維持近期業績為目的的盈餘管理;公司經理人員使用可操縱性應利潤為其管理盈餘的手段;經理人員因追求正盈餘或圖維持近期業績而管理盈餘時體現出不同的行為方式。對美國上市公司的成功運用,證明我們的新在判斷盈餘管理存在與否、手段如何、動機怎樣等方面均比目前正在學術界流行的盈餘分佈法具有更強的檢能力。
  17. 1 ) realization of software packet embedded in m - es and md - is respectively to accomplish main function of mdlp, including assignment of tei ( temporary equipment identifier ), establishment of multiple frame operation, framing, flow control and error - free transmission of packets, is detailed. 2 ) a test model is established to evaluate the robustness and stability of mdlp and verify the validity of software packets. 3 ) according to the design of radio modem construction used in m - es, the modules of interface between data terminal equipment and radio modem are achieved to enable transmission of short message and continuous pseudo - random bit stream via rs232 uart

    本文首先概述了蜂窩數字分組數據網的結構和空中協議,詳細分析了移動數據鏈路協議,並在此基礎上,重點敘述了以下方面的工作: 1 )設並完成了分別應用於m - es和md - is端無線控制器的兩套程序實現數據鏈路層的主要功能,包括分配臨時設備號、建立鏈路、組幀和面向連接的服務保證分組正確無誤地傳輸,並進行適當的流控; 2 )建立移動數據鏈路協議的可靠性和穩定性,證明了程序包的效用; 3 )根據cdpd系無線數據機的軟硬體總體設方案,完成了介面塊,實現了rs232異步串口通信,使用戶可以根據需要發送短消息或連續的偽隨機比特流; 4 )在tms320c54x的軟體、硬體擬平臺上,建立了cdpd,實現了cdpd系的mdlp基本功能。
  18. The simulation results of a hvdc light system based on vsvpwm and pid controller verify the feasibility of vsvpwm and pid controller to hvdc light systems. the power flow model of hvdc light system is also proposed, and a power flow calculation program incorporating with hvdc light is developed, based on psasp / upi. the epri 7 - bus test system is applied to test the proposed model and algorithm, and the results prove it feasible and correctness

    本文分析了用於vsc控制的電壓空間矢量脈寬調制( vsvpwm )的基本原理,提出了基於pscad / emtdc軟體的vsvpwm擬方法;建立了hvdclight系的穩態,並結合該確定了控制量與被控量的合理對應關系,設了適用於hvdclight系的pid控制器;通過對採用vsvpwm和pid控制器的hvdclight系的數字擬研究,驗證了vsvpwm和pid控制器應用於hvdclight系的可行性;建立了hvdclight系潮流算的數學,利用psasp軟體及其用戶程序介面功能開發了含hvdclight的電力系潮流算程序,並結合epri7節點的算例分析,證明了該及其實現方法的可行性和正確性。
  19. The main researches in the thesis list below : summarize the total development of data synchronization technology in both domestic and abroad, and then analyze the products and protocols of data synchronization at present. research the component and key technology of syncml protocol thoroughly, improve the origin conflict resolution mechanism. a new common multiple database synchronization model ? mdbsm is proposed, it can be used in common data exchange in isomerous databases

    主要在以下幾個方面做出了實際的研究工作:總結了目前國內外在數據同步應用的發展情況,對現有的數據同步產品和數據同步協議進行分析;深入研究了syncml協議的各組成部分和關鍵技術,改進原協議的沖突解決設;給出並實現了一種應用於同步異構數據庫操作的mdbsm;最後是同步系
  20. The paper makes the deep discussion and research on software testing, and puts forward the groups cooperation testing model based on concurrent engineering, and combines with the instance of telecommunication monitoring system to complete design for testability, and establishes corresponding testing strategy and flow chart, so as to further enhance testing organization and management under the instruction of iso principles

    本文對軟體進行了深入探討和研究,提出了基於并行工程的群體協同,結合電信監控系實例進行了軟體性設,制定了相應的策略和流程,使軟體在iso原則的指導下進一步加強了系組織和管理。
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