第三四分位數 的英文怎麼說
中文拼音 [dìsānsìfēnwèishǔ]
第三四分位數
英文
third quartile- 第 : Ⅰ助詞(用在整數的數詞前 表示次序) auxiliary word for ordinal numbers Ⅱ名詞1 [書面語] (科第) gr...
- 三 : Ⅰ數詞1. (二加一后所得) three 2. (表示多數或多次) more than two; several; many Ⅱ名詞(姓氏) a surname
- 四 : Ⅰ數詞(三加一后所得) four Ⅱ名詞1 [音樂] (中國民族音樂音階上的一級) a note of the scale in gong...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 數 : 數副詞(屢次) frequently; repeatedly
- 第三 : third第三帝國 [德國] the third reich (1934 1945); 第三 (層)樓 [美國] third story; [英國] seco...
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This text divides into five chapters altogether : chapter one in the introduction, have introduced the common sensor of displacement, has pointed out the fine characteristic of hall ' s sensor, put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance, electromagnetic characteristic, zero error, frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism, systematic implementation method, the experimental result has appeared, structure the mathematics model, and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to
本文共分為五章:第一章緒論中,介紹了常見的位移傳感器,指出了霍爾傳感器的優良特性,提出了基本任務;第二章介紹了霍爾元件的基本工作原理;第三章介紹了霍爾元件的溫度性能、電磁特性、零位誤差、頻率特性以及這些參數常用的補償方法和霍爾元件的簡單應用;第四章介紹了反饋隨動機構的測量原理,系統的實現方法,給出了實驗結果,構建了數學模型,並對誤差進行了分析;第五章展望中指出了今後的發展方向。Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained
首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差,建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道,並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較,先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較,然後針對外場試驗,對非線性濾波獲得的定位結果與商業軟體進行了分析比較,並得出結論。Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上,本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型,並對它們進行了分析和模擬;第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件;第四章針對傳統擴展卡爾曼( ekf )方法的缺點,提出了一種修正協方差的擴展卡爾曼濾波( mvefk )方法,並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較;第五章通過引入雷達機動目標跟蹤方法和模型,提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法;第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究,提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。The dissertation is mainly including four section : the first is the experiments done in the tank, which will supply the reliable information of imaging data ; the second is image edge detection by the use of the art of the zernkie moments, which is used to detect the liner and threaded edge of the object, the third is the underwater camera calibration technique, the forth is automatic positioning the location of the camera by used of the art of cross - ratio, the result of which is satisfied
本文工作分為四個部分:第一部分是水槽實驗部分,它為后續的工作提供了可靠的圖像數據信息;第二部分是基於zom距的直線、曲線邊緣提取技術及相關的與處理技術;第三部分,水下攝像機標定技術研究,基於改進的tsai演算法,採用逐步分解的標定策略。並探討了一種相對簡單的、靈活的標定技術;第四部分是攝像機定位技術研究,採用具有平移不變性的交比進行攝像機定位,模擬試驗的最大誤差不超過2 ,效果還是令人滿意的。This paper, on the basis of yuelu - mountain high - tech park in changsha city, beginning with the investigation of diversiform transit - trip in the park, firstly analyzes and evaluates space - time change law of traffic flow and situation of traffic service level on actual road net - work in the park ; secondly, applying multi - statistical analysis method, taking investigated corporation as sample, using annual freight traffic volume produced by unit plant area of the corporation, with clustering analysis, obtains four sorts of the sample corporation, and establishes the predict models of freight traffic volume for every kind of corporation. with these models, actual or planning year ’ s day maximum freight traffic volume can be predicted. the third, this paper makes analysis research of trip law of employees in the park, and obtains the index of trip times, trip modes and trip development trend of the employees
本文以長沙市嶽麓山高科技園區為依託,從調查園區內的各類交通出行開始,首先分析評價了園區內現狀道路網上的交通流時空變化規律及道路網上的交通服務水平狀況;其次是應用多元統計分析方法,以調查企業為樣品,以企業單位車間面積所產生的年貨運交通量為變量,通過聚類分析,獲得了樣本企業的四個類別,並建立了各類企業貨運交通量的預測模型,應用這些模型,可預測園區內現狀或規劃年的日最大貨運交通量;第三是對園區內企業員工的出行規律做了分析研究,獲得了企業員工的出行次數、出行方式及出行發展趨勢等等特性指標;最後是對園區內小區居民的出行狀況進行了分析,獲得了居民出行的諸如高峰時段、高峰出行量等等的特徵數據。The first part. task analyse of handling technology design. is explain the place, basic establishments entironment of yangshan port and the conditions basic tenet and technical parameter of design. the second part, project study out. is discuss the design contents the choice of the leading and the assistant engine, the form of the handling mechanisation system, project study out. the third part, size design, is count the berth pass capacity, the amount of handling engine, the area and capacity of yard, road and gate, the worker amount. the fourth part. technology and economy argumentation, commendable project confirm, is confirm the commendable project by technology and economy argumentation. in the end, considering the technology, economy and use. discourse commend the project of rubber - tyred gantry crane. at present. centre government is studying yangshan project, but in handling technology part of container terminal, the design is simply. so this discourse has important consult value. and has important value of economy and community too
第一部分的裝卸工藝設計任務分析主要就洋山港區的地理位置、基礎設施、自然環境,設計前提條件,設計原則以及設計主要技術參數進行說明;第二部分的裝卸工藝方案擬定主要就工藝設計的主要內容,主要機械及輔助機械選擇,裝卸機械化系統組成以及工藝設計方案擬定進行論述;第三部分的裝卸工藝方案規模設計主要就泊位通過能力,裝卸機械臺數,堆場面積及堆存能力,道路及大門,司機及工人人數,工藝流程進行計算分析;第四部分的技術經濟論證及推薦方案確定主要就技術、經濟指標進行對比論證,並在此基礎上確定推薦方案。Chapter two ascertains main technological factor of dong gou lock reconstructing, including forecast the cargo and volume through the lock to reason about representative type of vessel designed for through the lock and its operation organize. chapter three design the renovate engineering through ascertaining the main technological factor scale of the lock, dimension, designed water level and altitude, including design of structure of the lock, lock chamber and lock gate, and select the main technological factor and pattern of headstock gear. chapter four draws a comprehensive compare of the two design scheme of the renovate project with engineering project economy evaluation method, and makes out the recommended scheme, and furthermore, to calculate the economic evaluation index of the recommended scheme and makes the economic sensitivity analysis of the scheme and finally demonstrate economic feasibility of the scheme
本論文共分四章:第一章主要介紹了原東溝船閘的地理位置和營運現狀,說明了船閘在航道建設和水資源綜合利用中的作用及東溝船閘改造的必要性;第二章東溝船閘改造的主要技術因素確定其中包括東溝船閘過閘貨種和貨運量發展的預測,並確定東溝船閘的設計代表船型及營運組織;第三章東溝船閘改造工程設計本章通過船閘改造工程主要技術參數:船閘規模、尺度、設計水位和高程等的確定,設計了二個船閘改造方案,包括鋼筋混凝土整體塢式閘首結構、閘室和閘門的設計,並選定了啟閉機的主要技術參數和型式;第四章採用了工程項目經濟評估方法對東溝船閘改造工程二個設計方案進行全面綜合比較后,確定了推薦方案。Bits supplies the synchronous timing signal to these equipments inside the telecommunicationt building, such as dps, atm, no. 7, dxc, tm & adm in sdh, don and in etc. the related techniques are involved in the content of synchronization ne twork, timing distribution, the timing signal transportations x impairments etc. the second chapter tells the structure and the function of the building integrated timing system. the third chapter summarizes the digital synchronization network techniques, which emphasizes the basic concept of synchronization networks analyzes the necessity of building the synchronization network and introduces all kinds of synchronization methods. the fourth chapter represents the transportation of the synchronization signal
本文第二章講述了通信樓綜合定時系統的構成及作用:第三章概述了數字同步網技術,著重描述了同步網的基本概念,分析了建立同步網的必要性,講述了各種同步方法;第四章闡述了同步定時信號的傳輸;第五章介紹了bits設備所支持的同步狀態消息;第六章、第七章為本文的重點,通過對時鐘信號建立數學模型,從理論上分析時鐘內部噪聲和相位瞬變產生時鐘定時信號損傷的原理,企圖尋找到更好地控制頻率漂移的方法。According to the situation request, we combine with the fact on the railway for the time being, raised the whole views and suggestions to the railway improvement, the first : to realise railway shareholding entreprises is the basic way of railway improvement winder the public ownership circumstance, the second : it is gotton the whole locatim to the function of ministery of rail ways, railway bureau. the branch of railway bureau and the units of railway department, it is designed the whole developing frame that the funtion of ministry of railways is macro - controler, the railway bureau or its branch is management substance which ouur legal qualifaction the unit of railway department is the basic product unit, the third : it describes kinds of faults on the present four level management, and tolal the data auording to the fact
根據形勢要求,結合目前鐵路的實際情況,對當今鐵路的改革提出了整體的看法和建議:第一、實現鐵路企業股份制是公有制條件下鐵路改革的根本出路;第二、對鐵道部、鐵路局、鐵路分局、基層站段的功能給予了整體的定位;設計了鐵道部的功能是宏觀調控者,鐵路局或分局為法人代表的經營實體,基礎站段為生產基本單位的整體改革框架;第三、對目前四級管理體制的種種缺陷作了描述,並根據實際情況進行了數據統計。This part provides the basic model of principal - agency and summarize extend model of principal - agency through introducing the development of agent problem, principal - agency relationship and theory hypothesis and so on. in the chapter three, in which establishes an incentive - constrain mechanism game model. the chapter four, in which analyzes the manager action of state enterprise, rebuilds the incentive - constrain mechanism of manager of state enterprise
本文分為五部分:第一章為緒論,詳細介紹了該學位論文的目的、研究的理論意義及現實意義、研究的方法、研究的思路以及本文的創新之處;第二章為委託?代理理論的概述,該部分主要從代理問題的產生和發展、委託?代理關系、理論假設前提等幾個方面給出了委託-代理理論的基本框架以及應用於現實中的擴展模型;第三章為建立激勵約束機制數學博弈模型;第四章為對國企經理行為特徵進行深層探析,重建國企經理激勵監督約束機制。In this paper, such three points are studied as : a ) the angular distributions of the hot electrons emission under laser irradiation at different incidence angles and at different polarization direction, the angular distribution of the hot electrons in the different energy range, and the effects of laser prepulse on the angular distributions of the hot electrons emission ; b ) the energy distribution of the hot electrons at different directions, from the metallic targets and the dielectric targets, in the different energy range of the hot electrons, and the effects of the atomic number z on the energy distribution of hot electron generated by the metallic targets ; and c ) the energetic proton emission resulting from the interaction of the us - ui laser pulse with plasma
本論文進行了三個方面的研究:第一,超熱電子角分佈的研究,包括不同激光入射角下超熱電子的角分佈;激光不同偏振態下超熱電子的角分佈;激光預脈沖對超熱電子角分佈的影響;不同能段的超熱電子的角分佈。第二,超熱電子能量分佈的研究,包括不同方位超熱電子的能量分佈,金屬與非金屬靶材的超熱電子的能量分佈,金屬原子序數z對超熱電子能量分佈的影響以及不同能段超熱電子的能量分佈。第三,研究了超短超強激光與固體靶相互作用所產四川大學博士學位論文生的高能質子發射和能譜。The third and forth parts are the highlights of this paper. in these two sections, we study and design the duty of college teachers by employing the theory of objective management and balance marks ; meanwhile, a thorough research is made on the evaluation standards, criterions and proportion by adopting
第三部分和第四部分是本論文的重點,運用目標管理原理、平衡計分卡詳細分析和設計高校教師崗位職責;運用標桿基準法、歷史數據參考法、德爾菲法研究績效考評指標、考評標準及權重。This article introduces the design and implement of flight simulator based on dsp which contains five parts. the first part establishs the math model of flight simulator which contains the model of aerodynamics and flight mechanics, the model of standard atmosphere and wind model ; the second part introdces primarily the arithmetic of numeric integral which is very important to dyanmic system simulant. the third part introduces the design of hard interface circuit and program. the fourth part introduces the data flow graph of the flight simulator software and gunge - kutta integral arithmetic. the finall part introduces the design of serial port communication software, it contains communication protocol, the process of upper machine and lower machine communication and the programing of serial port communication by vc + +
本文介紹了基於dsp的飛行器模擬器設計與實現,主要分為五個部分,第一部分建立了飛行模擬的數學模型,包括飛行器空氣動力學和飛行力學的數學模型、標準大氣模型和風模型;第二部分主要介紹了數值積分演算法,它在動態系統模擬中是很重要的;第三部分為硬體介面設計與編程;第四部分介紹了氣動模擬軟體的數據處理流程和runge - kutta積分演算法;最後一部分為串口通信軟體設計,介紹了通信協議、上下位機處理流程和vc + +串口通信編程。So in chapter 3 and chapter 4 the author design a scheme to complete a segmental report, combined with the situation of china enterprise group, by dividing, calculating and offsetting the collected data of the totality of the individual financial data. finally, the author put the scheme in practice by applying it on the yindu group and justifies the feasibility of it
在第三章和第四章中本文結合我國實際提出以個別會計報表加總數為基礎,編制工作底稿對各項匯總數據進行劃分、計西南交通大學碩士研究生學位論文第頁算、抵銷的具體編制方案,並以銀都集團為例對編制方案進行實施,驗證了方案的可操作性。On the basis of collecting and processing many datum and materials. firstly. this paper analyzes main activities and cost constitutions of each stage of the life cycle of a fcs, and lay a foundation for later analysis and evaluation of system lcc. secondly, a basis method and usage range for estimating the system lcc are introduced. a multivariate linear regression model of pcs development cost and cost driven factor is built by use of the parametric method and supplies the base of cost estimation of newly - developed systems. thirdly, combine actual examples and make statistical analysis of lcc of a certain pcs developed by our institute, predict unhappened usage and service cost with grey prediction method, obtain proportion of each constitute to the lcc. forthly, according to actual conditions, use the fuzzy theory to overall evaluate efficacy of the fcs, fifthly, combimng our actual conditions, investigate specific measures of how to implement the life cycle cost management in our institute and put forward a new conception of developing web - based flight control system lcc management information system with pdm as the platform. at last, investigate important factors such as reliability and maintainability that may affect the life cycle cost of the fcs in detail, and put forward specific methods of lowering the life cycle cost of the fcs
論文在收集和整理大量資料的基礎上,首先深入分析了飛控系統壽命周期各階段的主要活動以及各階段的費用構成,為以後系統壽命周期費用的分析和評價奠定了基礎;其次,介紹了壽命周期費用估算的基本方法和使用范圍,並利用參數法建立了飛控系統研製費用與費用驅動因子的多元線性回歸模型,為新研系統的費用估算提供了依據;第三,結合實例對我所研製的某型飛控系統的壽命周期費用進行統計分析,運用灰色預測方法對未發生的使用及維修費用進行預測,得出了該系統的壽命周期費用以及各組成部分所佔比例;第四,根據實際情況,首次運用模糊理論對飛控系統的系統效能進行了綜合評價,構造了飛控系統系統效能模糊綜合評價模型;第五,結合我所實際,探討了如何在本單位實施加強壽命周期費用管理的具體措施,提出以pdm為平臺,開發基於web的飛控系統lcc管理信息系統的新構思;最後,對影響飛控系統壽命周期費用的重要因素如可靠性和維修性等進行了詳細地研究,提出了降低飛控系統壽命周期費用的具體方法。Regard how to structure the control system of sensorless bldcm with dsp - tms320f240 as the centre in this paper, the detailed argumentation course of the motor startup, bemf terminal voltage measurement and control strategy is given out, give and pay concrete details for the software and hardware realization and experimental result. in order to treat the bldcm control system with dsp clearly, the full paper divides into six chapters altogether : chapter one, introduceing the development course, the structure characteristic and operation principle, etc. of bldcm in the introduction ; chapter two, directed against the startup issue of bldcm, the chapter give and publish the rotor measure pulse orients technology for motor startup in detail ; chapter three, proceed with mathematics model of the bldcm, expounding the control schemes ; chapter four, two important devices introducing : dsp ( 240 tms320f ) and power invertor control chip ( ir2131s ) ; chapter five, give and publish the detail of hardwares of control system ; chapter six, by ccs ide of ti, realize the control schemes in the front chapters with software, offere the procedure flow chart of main subroutine and some key place of programming, the experiment result in addition
全文共分六章:第一章、緒論中介紹了bldcm的發展歷程、電機本身的結構特點和工作原理等;第二章、針對五位置傳感器bldcm的起動問題,文中詳細給出了檢測脈沖轉子定位起動技術;第三章、從電機的數學模型入手,詳細論述了反電動勢端電壓法和系統的控制策略;第四章、介紹了硬體實現中的兩個重要器件: dsp ( tms320f240 )和功率管逆變器控制晶元( ir2131s ) ;第五章、詳細給出了控制系統的硬體實現細節;第六章、利用ti提供的ccs集成開發環境,將前面章節的控制方案用軟體加以實現,給出了主要部分的程序流程圖和一些編程要點以及實驗結果。The second part is a detector which is used to detect the distribution of voltage on the patient ' s brain surface from all different directions. the third is a mixed signal processor ( c8051f020 ) which is used to control the other parts of the system and display some necessary information and convert the voltage signals into digital signals, as well as transmit the acquired data to the computer. the fourth is computer with eit software which is used to analyze and process the received data and construct a picture for the brain edema and haematoma on screen
32通道電阻抗斷層成像系統由4個部分組成:第一部分是正弦波恆流源,用來產生注入大腦的激勵電流;第二部分是電位信號的提取與轉換,用來提取當激勵電流注入時,在大腦表面形成的電位分佈信號;第三部分是數據採集與控制系統,用來控制激勵電流的頻率,注入方向,注入強度,控制採集大腦表面的電位分佈信號,並且將這些採集的電位分佈數據傳到pc機;第四部分是計算機eit成像軟體,用來接收下位機的電位分佈數據,並且對這些數據進行分析計算,重建電阻抗圖像。In this thesis, we consider the following three aspects : first, we compute the bergman kernel functions with explicit formulas on generalized hna domains ; second, we obtain the explicit formulas for extremal maps and extremal values between the ball and the super - cartan domain of the first type ; finally, we give sufficient conditions and necessary conditions that holomorphic functions become bloch functions on super - cartan domains
在這篇論文中,我們討論了三個方面的內容:第一部分我們給出了四類廣義華羅庚域的bergman核函數的顯表達式;第二部分我們得到了第一類超cartan域與單位超球間的極值與極值映照;第三部分我們給出了四類超cartan域上全純函數是bloch函數的充分條件與必要條件。The paper includes six parts : the first part summarizes the significance of the research, researching situation and its comment ; the second one shows the testing research work in situ and in the laboratory ; the third one is the settling and analysis of these data ; the fourth part introduces the numerical model of the response of sea - bed to waves ; in the fifth part we commends the effects of the different wave parameters and soil parameters ; the last part is the analysis of numerical simulation of strength heterogeneity of sediment
本學位論文共分為六個部分,第一部分對研究領域進行了綜述;第二部分介紹了現場和室內開展的試驗;第三部分進行了試驗資料的處理與分析;第四部分建立了海床對波浪響應的數值模型;第五部分數值模擬了海床對波浪響應的影響因素;第六部分對沉積物強度非均勻化進行了數值模擬。The thesis is composed of 9 parts : the background, significance, main topics and innovations in the thesis are introduced in chapter 1 ; in chapter 2, the main function and performance of interface circuits are described from the view of system by using the example of gigabit ethernet ' s transceiver ; the transmission media ' s frequency characteristics and model are analyzed for the high - speed data transmission system in chapter 3 ; the line driver is presented in chapter 4 ; the equalization principles for high - speed data transmission system are introduced in chapter 5 ; a novel adaptive equalizer for 1000base - cx transceiver is presented in chapter 6 ; in chapter 7, a fixed equalizer for 2. 5gbps transceiver is described ; in chapter 8, layout design and measured results are discussed ; at last, the conclusions are drawn in chapter 9. during period of finishing the thesis, i read lots of literatures about the interface circuits in high - speed data transmission system, studied their principles and design techniques, and designed : 1 、 the line driver for 2. 5gbps baseband copper cable transceiver ; 2 、 the fixed equalizer for 2. 5gbps baseband copper cable transceiver ; 3 、 the fixed equalizer for 1. 5gbps sata ( serial at attachment ) transceiver ; 4 、 an adaptive equalizer for 1000base - cx transceiver
論文由9部分組成:在第一章引言中介紹了論文的背景、意義、國內外研究現狀,以及論文的主要內容和創新;第二章以千兆位以太網為例,從系統的角度介紹了高速數據傳輸系統介面電路的主要功能和性能指標;第三章分析了高速數據傳輸系統的傳輸介質的頻率特性和模型;第四章描述了線驅動器的設計原理及其電路實現;第五章描述了高速數據傳輸系統的均衡原理;第六章描述了適用於1 . 25gbps基帶銅纜收發器系統的自適應均衡器的設計原理和電路實現;第七章描述了適用於2 . 5gbps基帶銅纜收發器系統和1 . 5gbps串列硬盤介面( sata )收發器系統的固定均衡器的設計原理及其電路實現;在第八章中分析了電路的版圖設計及晶元測試結果;最後,第九章總結了全文。在完成論文期間,查閱了大量的有關高速數據傳輸系統介面電路方面的文獻,較系統地學習了線驅動器、傳輸線和均衡器等方面的理論知識和電路設計原理,設計了用於: ( 1 ) 2 . 5gbps基帶銅纜收發器系統的線驅動器; ( 2 ) 2 . 5gbps基帶銅纜收發器系統的固定均衡器; ( 3 ) 1 . 5gbpssata系統的固定均衡器; ( 4 ) 1 . 25gbps基帶銅纜收發器系統的自適應均衡器。分享友人