敘述性統計 的英文怎麼說

中文拼音 [shùxìngtǒng]
敘述性統計 英文
descriptive statistics
  • : Ⅰ動詞1 (說; 談) talk; chat 2 (記述; 敘說) narrate; recount; relate3 (評定等級、次第) assess...
  • : Ⅰ動詞(陳說; 敘述) state; relate; narrate Ⅱ名詞(姓氏) a surname
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • : 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...
  • 統計 : 1 (對有關數據的搜集、整理、計算和分析) statistics; census; numerical statement; vital statistic...
  1. The excimer laser diopter correction and aberration correction have been proved efficiency and safety. based on cad / cam, applied optics, ophthalmology, biomedicine and computer techonlogy, this paper studied the principle of excimer laser aberration correction. the conception, cause of formation and representation of wavefront aberration are introduced

    準分子激光治療屈光不正及消除像差的有效和安全已被證實,本學位論文將cad 、眼科視光學、波前像差技術、生物醫學技術與算機技術等多學科理論交叉結合,系了人眼波前像差理論,包括波前像差概念、表示方法、測量方法和產生的原因等。
  2. Firstly, the status of our nation ' s water resources, flood and arid hazards is overviewed to illustrate the necessity for study on dynamic control of flood season limited water level. disadvantages in traditional limitsd water level design, static control of limited water level design, static control of limited water level and fuzzy limited water level curve are pointed out, and mending methods for these are introduced. dynamic control and its key problems are analyzed hi next section. the allowable range of limited water level is determined, so as the allowable extreme risk index. the definition of extreme risk is re - illustrated, risk analysis methods in reservoir operation is discussed either. according to the definition of extreme risk rate, the allowable extreme risk rate of reservoir is systematically demonstrated with variant extreme risk indexes and flood season limited water level

    本文首先闡了我國水資源狀況和水旱災害、說明水庫汛期限制水位動態控制研究的必要;介紹了傳汛限水位設、汛限水位靜態控制、模糊汛限水位過程線存在的問題及其初步改進方法;分析汛期限制水位動態控制的方法及關鍵問題;進一步闡了水庫極限風險率的定義;根據極限風險率定義,詳細了不同極限風險指標時、不同汛期限制水位下起調,水庫所能承受的極限風險率算方法。然後,基於極限風險率算方法,以白石水庫為背景,研究「考慮壩體自身安全、考慮壩體安全與下游防護對象控制下泄流量的汛限水位動態控制的極限風險率」 。
  3. 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,包括混凝土測孔方法的研究、孔結構模型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;第二章了混凝土材料細觀結構的多尺度及混凝土材料測孔技術的原理,並討論了水泥基多孔材料孔隙分析中常用的表徵參數,也說明了壓汞法測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;第三章是著重分析了孔隙率與強度關系模型的發展歷程,並對已有的模型進行了比較分析,指出了原有模型的不足之處;第四章在「綜合集成」的基礎上,提出了混凝土孔結構復合體模型和孔系的物理模型,並模擬了該模型下由各單體並聯形成的復合體的斷裂過程,最後根據所建模型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;第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析,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、彈模量和表面能的修正對混凝土強度算產生的影響,檢驗模型的正確;第六章是結論與展望,根據研究綜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。
  4. Neural network control is an important mode of intelligent control, and it is widely used in branches of control science, first, the architecture and the learning rule ( error back propagation algorithm ) of multiplayered neural network which is widely used in control system are presentedo especially, the paper refers to the architecture of diagonal recurrent neural network and its learning algorithm - - - - - recurrent prediction error algorithm because of its faster convergence with low computing costo next, before introducing the neural network control to the double close loop dc driver system, the controllers of current and velocity loop are designed using engineering design approach after analysis of the system, simulation models of the system are created

    神經網路控制是智能控制的重要方式之一,它廣泛應用於自動控制學科各個領域。本文首先了控制系中常用的多層前饋網路結構及演算法( bp演算法) ,特別提及了能夠較好描動態能的對角遞歸神經網路和在用遞推預報誤差演算法訓練drnn時取得了較快的收斂速度。其次,應用工程方法分析設了tf - 1350糖分離機的電流、轉速雙閉環直流調速系的控制器,作為引入神經網路控制的設基礎,並建立了系的模擬模型。
  5. The paper introduces a general design pattern of the foundation framework of advertisement inspecting system based on j2ee, and discusses the realization of data layer, business layer, web layer and application client of the system. it resolves the key problems as follows : the consistency of the way of business request expression, the reusability of application services and the security of the system, and make the systems based on this foundation framework easy to configure, and has excellent extensibility and applicability

    論文詳細了基於j2ee的廣告監播系基礎架構的總體設方案,並著重討論了該系中數據訪問層、業務層、 web層、應用客戶端的具體實現,解決了業務請求表達方式的一致、應用服務的可復用、系安全等關鍵問題。
  6. First introduces hardware platform of mine monitoring system that adopt embedded pcm - 3350 to be as main controller, big - capability memorizer cf card as memories, 10. 4 inch lcd liquid crystal screen as display, pcm - 3612 as communication extend cell ; rs232 and keyboard as i / o interface to realize data dispose, storage and transport function, and so on. then introduces some basic concept and core character about embedded operating system windows ce. at the same time, the paper has a detailed introduction about platform - configured tool platform builder of mbedded operating system windows ce and a detailed narration abut the whole process of configuring the embedded operating system base on yanhua pcm - 3350, then the paper depletes the characteristic function and system framework of embedded configuration software mcgs generally and introduces the design process about configuration software of mine monitoring - control system ; at last, the paper introduces main function of rk512 communication protocol that can ensure reliable communication with controller plc of bottom machine

    首先介紹了硬體平臺的搭建:採用嵌入式pcm - 3350作為主控制器;大容量的存儲器cf卡作為存儲設備;採用10 . 4寸lcd液晶屏作為顯示設備; pcm - 3612作為通信擴展單元;用rs232和鍵盤作為i o介面來實現數據的處理、存儲和傳輸等功能;然後又介紹了嵌入式操作系windowsce的一些基本概念、核心特,同時對嵌入式操作系windowsce的平臺定製工具platformbuilder做了一些介紹並詳細了使用platformbuilder定製基於研華pcm - 3350的windowsce操作系的過程;接著概括了可運行在windowsce上的嵌入版組態軟體mcgs的特點、功能、體系結構並詳細介紹了礦山檢測系的組態軟體設過程;最後介紹了能夠與下位控制器plc可靠通訊的rk512通訊協議的主要函數。
  7. In this paper, a general expression is introduced, i. e, ( the equation is abbreviated ), the ties between two methods are exploited, and the computing methods are developed

    了自然三次自然樣條的一表示方法,即(方程式略) ,探討了兩種表示之間的聯系與質,論一表示的算方法。
  8. Secondly, in foundation described basic theories model of the panel data analysis, the article built up the general block linear model expression form of panel data analysismodel. deduced parameter estimation and hypothesis test statistic and its probabilitydistribution

    其次在面板數據分析基本理論模型的基礎上,建立了面板數據分析模型的一般分塊線模型的表達形式,並推導了參數估量和假設檢驗量。
  9. Abstract : a new method, collaborative allocation ( ca ), is proposed to solve the large - scale optimum allocation problem in aircraft conceptual design. according to the characteristics of optimum allocation in aircraft conceptual design. the principle and mathematical model of ca are established. the optimum allocation problem is decomposed into one main optimization problem and several sub - optimization problems. a group of design requirements for subsystems are provided by the main system respectively, and the subsystems execute their own optimizations or further provide the detailed design requirements to the bottom components of aircraft, such as spars, ribs and skins, etc. the subsystems minimize the discrepancy between their own local variables and the corresponding allocated values, and then return the optimization results to main optimization. the main optimization is performed to reallocate the design requirements for improving the integration performance and progressing toward the compatibilities among subsystems. ca provides the general optimum allocation architecture and is easy to be carried out. furthermore, the concurrent computation can also be realized. two examples of optimum reliability allocation are used to describe the implementation procedure of ca for two - level allocation and three - level allocation respectively, and to validate preliminarily its correctness and effectiveness. it is shown that the developed method can be successfully used in optimum allocation of design requirements. then taking weight requirement allocation as example, the mathematical model and solution procedure for collaborative allocation of design requirements in aircraft conceptual design are briefly depicted

    文摘:探討了一種新的設指標最優分配方法- -協同分配法,用於處理飛機頂層設中的大規模設指標最優分配問題.分析了飛機頂層設中的設指標最優分配特徵,據此給出了協同法的原理並建立了數學模型.協同法按設指標分配關系將最優分配問題分解為主系優化和子系優化,主優化對子系指標進行最優分配,子優化以最小化分配設指標值與期望設指標值之間的差異為目標,進行子系最優設,或對底層元件(如飛機翼梁、翼肋和翼盒等)進行設指標最優分配,並把最優解信息反饋給主優化.主優化通過子優化最優解信息構成的一致約束協調分配量,提高系整體能,並重新給出分配方案.主系與子系反復協調,直到得到設指標最優分配方案.兩層可靠度指標分配算例初步驗證了本文方法的正確與可行,三層可靠度指標分配算例證明了本文方法的有效.最後,以重量指標分配為例,簡要了針對飛機頂層設中設指標協同分配的數學模型和求解思路
  10. A new method, collaborative allocation ( ca ), is proposed to solve the large - scale optimum allocation problem in aircraft conceptual design. according to the characteristics of optimum allocation in aircraft conceptual design. the principle and mathematical model of ca are established. the optimum allocation problem is decomposed into one main optimization problem and several sub - optimization problems. a group of design requirements for subsystems are provided by the main system respectively, and the subsystems execute their own optimizations or further provide the detailed design requirements to the bottom components of aircraft, such as spars, ribs and skins, etc. the subsystems minimize the discrepancy between their own local variables and the corresponding allocated values, and then return the optimization results to main optimization. the main optimization is performed to reallocate the design requirements for improving the integration performance and progressing toward the compatibilities among subsystems. ca provides the general optimum allocation architecture and is easy to be carried out. furthermore, the concurrent computation can also be realized. two examples of optimum reliability allocation are used to describe the implementation procedure of ca for two - level allocation and three - level allocation respectively, and to validate preliminarily its correctness and effectiveness. it is shown that the developed method can be successfully used in optimum allocation of design requirements. then taking weight requirement allocation as example, the mathematical model and solution procedure for collaborative allocation of design requirements in aircraft conceptual design are briefly depicted

    探討了一種新的設指標最優分配方法- -協同分配法,用於處理飛機頂層設中的大規模設指標最優分配問題.分析了飛機頂層設中的設指標最優分配特徵,據此給出了協同法的原理並建立了數學模型.協同法按設指標分配關系將最優分配問題分解為主系優化和子系優化,主優化對子系指標進行最優分配,子優化以最小化分配設指標值與期望設指標值之間的差異為目標,進行子系最優設,或對底層元件(如飛機翼梁、翼肋和翼盒等)進行設指標最優分配,並把最優解信息反饋給主優化.主優化通過子優化最優解信息構成的一致約束協調分配量,提高系整體能,並重新給出分配方案.主系與子系反復協調,直到得到設指標最優分配方案.兩層可靠度指標分配算例初步驗證了本文方法的正確與可行,三層可靠度指標分配算例證明了本文方法的有效.最後,以重量指標分配為例,簡要了針對飛機頂層設中設指標協同分配的數學模型和求解思路
  11. We can understand the thoughts of the deh design and the relation of every parts to deh reliability by learning the main logic and liquid system of deh. this text finally analyzes the control characteristic of deh system

    通過詳細、解析deh的主邏輯和輔助邏輯以及deh液壓系,從而可較全面了解該系的設思想和特點,及其各部分對整個deh系調節特、可靠的影響。本文最後深入分析了deh系的調節特
  12. System functions of gsmb based on " godson " cpu was programmed by the discussion of " godson " cpu micro - system structure finalization and by the introduction of " godson " cpu performance requirements. this essay also specified on gsmb board level system structure, bios level solving and selection of important chips. moreover, problems related to high speed circuit design such as mensurability, pcb layout signal integrity, electromagnetic coexist were researched

    通過對「龍芯1號」 ( godson ) cpu微體系結構定型的討論和關于「龍芯1號」 cpu所需達到的的能指標的介紹,規劃了基於「龍芯1號」 cpu的高速服務器主板gsmb的系功能,並了根據系功能所設的gsmb板級系結構、 bios級解決方案和重要晶元的選型;另外還研究了高速電路設所涉及的如可測試、信號完整、電磁兼容等一系列問題,並依據研究構建了基於ibis的軟體模擬模型,同時藉助eda模擬分析工具對關鍵線網與關鍵模塊進行了板級模擬。
  13. The paper through to analyse the background, meaning and necessity for implement bidding & tender of online architectural design, through to discript and compare with different mode of domestic and international of application for bidding & tender in network, to propose a unique opinion of solution system which is ndbs mode for bidding & tender of online architectural design, the mode is to submit the whole course of bidding & tender of online architectural design from planning for bid, information issue, pre - qualification, call for bid meeting, tender submit, tender evaluation and confirm the solution to sign the contract in internet. the paper through to structure a bidding platform ( bdb. cn ), to analyse the funcation procedure of bidding and tender system of online architectural design, from the sight of bid invitor, bidder and tender evaluated angle, to link them closely. the paper carry on system design to ndbs mode, input and outut, the information and keep them, safety and data stored, the paper combine with online architectural desigh wenzhou huameng building ( railway station road 1 - 2 massif ) as an example of ndbs mode finally, the result of study indicate, bidding and tender of online architectural design is not only feasible technically, the procedure of bidding and tender accord wigh the law, but also it is unanimous in traditional bidding way, this implement the scheme can improve working efficiency greatly, reduce the cost of bidding effictives, make it standard science further, to realize a pualitative leap in the building management level

    論文通過對實施網上建築設招標投標的背景、意義及必要進行分析,通過對國內外不同模式招標投標網路應用的綜合與比較,提出了具有獨特見解的系的網上建築設招標投標解決方案? ? ndbs模式,該模式是對建築設招標投標全過程從招標準備、信息發布、資格預審、招標會議、標書遞交、評標決標到合同簽訂的網上解決方案,論文從構建網上招標平臺( bdb . cn )開始,對建築設招標投標系的功能流程進行分析,從招標人、投標人和評標人的角度出發,通過對其在整個招標投標活動流程在網際網路中的無縫連接,使得通過bdb . cn招標平臺,能夠達到建築設招標投標各參與方的一網打盡。論文還對ndbs模式進行了系,對輸入輸出、安全與數據加密和招標投標資料儲存進行設,從技術的層面對該系提出了解決的方案。論文最後還結合溫州華盟大廈工程(車站大道1 - 2 #地塊)的網上建築設招標投標的實例,對ndbs模式進行了實證,研究結果表明,實施網上建築設招標投標,不僅在技術上是成熟可行的,在工作流程上是符合法律法規的,與傳的招標投標方式也是一致的,而且能夠大大提高工作效率,有效降低招標投標成本,使得招標投標能夠更加規范、科學,實現建設管理水平的一個質的飛躍。
  14. In this paper, bit - error rate performance analyses are presented for coded and un - coded frequency hopping m - ary frequency - shift keyed systems under the condition of additive white gaussian noise ( awgn ) and partial band noise jamming and multitone jamming. the use of error - correct codes provide a way to improve the performance of frequency hopping system, particularly the use of reed - solomon code in a fh system under the condition of partial band noise jamming can greatly improve the performance of system. so we provide the way of coding and decoding of rs code in c language. in the end, we offer the simulation of the performance of time diversity fh / 2fsk system over partial band jamming noise channels

    第一章為緒論,跳頻通信的發展趨勢,以及基本概念,第二章及第三章介紹提高抗部分頻帶干擾的前向糾錯碼reed - solomon碼的原理和實現方法。第四章研究跳頻通信系在各種干擾條件下的能。最後在第五章以fh mfsk系為例,探討在部分頻帶干擾下的系能,並進行算機模擬,模擬結果表明採用分集技術和各種編碼技術對于系能改善具有明顯的效果。
  15. Introduces the structure of the multi - actuators control system based on pressure decrease sensing. then a multi - actuators control system model is developed for the constant pump discharge pressure hydraulic system. also the factors that affect the static accuracy of actuators " speed and flow rate and the dynamic characteristic are analyzed in this chapter

    第二章簡單了基於壓差傳感的算流量反饋流量控制原理及其實現;介紹了基於壓差傳感的多執行器復合控制系的構成;之後主要針對定壓系多執行器復合控制建立了數學模型,並分析了影響執行器速度及流量穩態控制精度和動態特的一些因素。
  16. This article summarizes the accuracy and coverage evaluation survey ( a. c. e. survey ) of the american census 2000. it includes sampling design, post - stratification, dual - system estimation and so on

    摘要本文概要地了美國2000年人口普查后所進行的準確和數字評估調查( a . c . e .調查) 。它包括:抽樣設、事後分層、雙系等等。
  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 )建立測試模型測試移動數據鏈路協議的可靠和穩定,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,完成了介面模塊,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、硬體模擬平臺上,建立了cdpd試驗模型,實現了cdpd系的mdlp基本功能。
  18. In accordance with fact, the systematic structure is elaborated in the intelligent manufacturing system ; the model is established in the machining centers ; the automatic calculation of the dimensions chain is prevented ; the cell technique resources are selected in the system. for example : first, with the developing of manufacturing industry, a new mode of intelligent manufacturing has appeared. the paper elaborate the natural feature of intelligent manufacturing, proposes multiagents " architecture, and elaborates the means of the model building based on the available manufacture technique ( cnc : computer numerical control ; fms : flexible manufacturing system ; cim : computer integrated manufacturing ) 。 second, the paper introduces the fundamental theory of petri ' s net

    本文著重就以下幾個方面的內容進行深入闡和探討: 1 .從現有製造技術( cnc : computernumericalcontrol ; fms : flexiblemanufacturingsystem ; cim : computerintegratedmanufacturing )闡智能製造的特點,了multiagent系結構,進一步闡了系分析、設中建模方法; 2 .介紹petri網的基本理論,利用它對某車間加工中心系生產過程建立模型,反映整個系的加工動態特,用arena7 . 0語言進行模擬研究,分析系資源配置的合理、高效,為復雜的製造自動化系的建模與模擬打下基礎; 3 .論了cad / capp / cam ( computeraideddesign / computeraidedprocessplanning / computeraidedmanufacturing )智能化集成的網路結構、數據通信等技術,對智能化工藝設中的尺寸鏈的自動算進行了探討,提出了lu分析演算法的原理及實現方法,編寫了算機程序,為capp ( computeraidedprocessplanning )中的智能化設提供了一個子模塊。
  19. The achievement of modifications on source - code was summarized as well. chapter one briefly introduced current developing status of audio coding techniques and the structure of this paper ; then chapter two shortly described the history of ogg vorbis and its technical process flow ; the data process and parameters calculations before vorbis quantization were discussed in chapter three ; and the details about vorbis quantization were shown in chapter four ; the following chapter five researched the process of vorbis decoding ; in chapter six, i derived and provided a unified implement structure on mdct and modified the source - code ; chapter seven is about some experiments where i compared and analyzed to finally present a summary on ogg vorbis encoding performance and the results on code modifications

    論文第一章了數字音頻壓縮技術發展狀況、音頻標準、主流音頻格式、各音頻格式存在的問題以及對本論文組織結構的簡要說明;第二章簡要介紹了oggvorbis音頻格式的概況和編解碼的技術結構;第三章詳細介紹了voibis演算法編碼過程中量化處理之前的數據處理和參數算;第四章詳細介紹了voibis演算法編碼過程中的量化處理;第五章結合源代碼詳細介紹了vorbis演算法的解碼過程;第六章中對oggvorbis的mdct運算模塊提出一種一實現方案,同時對代碼進行了修改;第七章將oggvorbis音頻與主流音頻格式mp3及aac進行了對比測試,對vorbis整體編碼能和前面章節中代碼的修改作出了總結。
  20. Then, after the structure and characteristic of awg is described in brief, we put emphasis on the deduce of the dispersion equation of ufbgs in the vicinity of its reflection band gap ( rbg ) in light of coupling theory. in terms of this equation, the dispersion compensation of the optical signal in every channel in the wdm system, which has eight channels, is calculated and analyzed theoretically. during the course, some important parameters of ufbgs in the compensator are computed

    在簡要了陣列波導光柵的結構及其特后,著重從光纖光柵耦合波理論導出了均勻光纖光柵在反射帶隙( rbg )外附近的色散特方程,並根據這一特方程,對8通路的wdm系中各分亡巴八碩士學位論文tinv坯1 : e 』 sthe狠波光信號的色散補償進行了數值算與分析,由此確定補償器中各均勻光纖光柵的相關參數。
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