章動常數 的英文怎麼說

中文拼音 [zhāngdòngchángshǔ]
章動常數 英文
constant of nutation
  • 章 : 名詞1 （歌曲詩文的段落） chapter; verse; section 2 （條理） order 3 （作品） literary writing 4 ...
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. In succession, it analyses, macrocosmicly and microcosmicly, the impact of the real estate cycle making by the wto and brings forward some strategieso chapter five studys the serious results of our nation " s real estate foam, it studys the causing reasons of the foam and the procreant mechanism of it and distinguishs the foam from the ordinary cyc - le fluctuation, and puts forward a set of index to feretell the foam in advance

    第五章研究了我國房地產周期波動過程中的房地產泡沫現象及其產重後果，分析了房地產泡沫產生的原因和產生的機理及其與周期正常波動的本質區別。為防範房地產泡沫，提出一套泡沫預警指標體系，建議採用功效系數法建立房地產泡沫預警系統，從而達到監側房地產泡沫的目的。
  2. 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。
  3. Chapter 7 mainly deals with the local differences in related policies, operation mechanism, and real results in the practice of family planning and the multi - layer characters which appear between city and countryside, the han nationality and minorities, floating and permanent populations, military and unmilitary units, foreign and domestic marriage

    第七章主要闡述了計劃生育在運作實踐中相關政策、運作機制及實際效果的地方差異，城鄉之間、漢族和少數民族之間、流動人口與常住人口之間、軍事單位與非軍事單位之間、涉外婚姻與本土婚姻之間等呈現出多層次特徵。
  4. This article canvass the status quo of the archive ' s automatization administration and the develop status of data mining, and discusses how to combine the data mining technology with the archive work from data cleaning means, data mining arithmetic, and data storage etc. and this article put forword a data mining syst em design idea. this article ' s structure is : first, in allusion to the archive data status quo, the pretreatment work of archive data that include data quality evaluation, data cleaning and data commut - ation process is bringed forword ; second, in the process of realizating data mining, the article discusses conception description, association rule, class three familiar means of applicating data mining, also put inforword the concrete arithmetic and the program design chart, and discusses the range and the foreground of all kinds of arithmetic when they are applicated in the archive ; third, the base of so you say, this article also discusses the importance of the archice applicate data storage and the means of realizing it ; last, the article discusses seval important problem of realizing an archive data mining system from data, diversity, arithmetic multiformity, mining result variety and the data pretreatment visibility, mining object descriptive visibility, mining process visibility, mining result visibil ity, user demand description and problem defining etc aspect. the article ' s core is how to import data mining technology in the archive work

    本文評述了檔案自動化管理現狀和數據挖掘技術的發展狀況，從數據清洗方法、數據挖掘演算法、數據倉庫的建立等方面論述了如何將數據挖掘技術與檔案工作相結合的具體思路，並提出了一個數據挖掘系統的設計思想。文章首先，針對檔案數據的現狀，提出了應對檔案數據進行預處理工作，包括數據質量評估、數據清理、數據變換和歸約等過程；其次，在具體實現數據挖掘過程中，本文結合檔案數據的特點探討了概念描述、關聯規則、分類等三種常見挖掘形式的實現方法，提出了具體的實現演算法和程序設計框圖，並論述了各種演算法在檔案工作中的應用范圍及前景；第三，在上述基礎上，又論述數據倉庫在檔案數據挖掘中的重要性並提出了實現一個檔案數據倉庫的方法；最後，從處理數據的多樣性、演算法的多樣性、挖掘結果的多樣性、數據預處理可視化、挖掘對象描述的可視化、挖掘過程可視化、結果顯示可視化、用戶需求的描述及問題定義等幾方面討論了實現一個檔案數據挖掘系統的幾個重點問題。全文以探討如何將數據挖掘技術引入到具體的檔案工作實踐中為核心。
  5. In the 4th section we study the optimal consumption and portfolio wher e the stock price with mixed jump - diffusion process, and get the explicit solution of this problem with maximum expected uti1ity ( uti1ity function with constant coefficient and risk averseness ). in the 5th section of this thesis give an concrete example, consider optimal consumption and investment tactics with jump events, and get the optimal consumption and portfolios under maximize expected utility ( risk detesting utility function with constant coefficient etc. )

    第四章考慮了股票價格的動態過程基於復合跳躍? ?擴散過程下的最優消費及投資策略，並求出了期望效用（常系數風險厭惡型效用函數）最大化下的最優消費和投資組合。第五章考慮了由於外部事件的影響導致股票價格的動態路徑出現跳躍時的最優消費及投資策略，並求出了期望效用（常系數風險厭惡型效用函數）最大化下的最優消費和投資組合。
  6. 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。
  7. The content of this paper is arranged as foll owing : chapter 1 introduces the concept of credit, credit risk and credit assessment, as well as the history and development of credit assessment ; chapter 2 introduces the history of ai technology, and the background of expert system and neural network. characters and disadvantages of expert system and neural network are presented respectively and the necessity of combining expert system and neural network is lightened ; chapter 3 shows the process of dealing with sample data, including the treatment of exceptional data and factor analysis, and puts forward the concrete framework of the mixed - expert credit assessment system ; chapter 4 introduces concept of object - oriented technology, and constructs object model and functional model after analyzing the whole system. it also illustrates the implementation of concrete classes by an example of rule class and the inference algorithm in the form of pseudocode ; chapter 5 introduces the structure of the whole system, the major functional models and their interfaces, and the characteristic of the system is also generalized ; chapter 6 summarizes the whole work, and points out the remaining deficiencies as well as the prospective of this method

    本文具體內容安排如下：第一章介紹了信用、信用風險、信用評價的概念，回顧了信用評價的歷史、發展和現狀，並綜合各種信用評價模型，指出這些模型各自的優缺點：第二章簡單描述了人工智慧技術，著重介紹有關專家系統與神經網路的基礎知識，通過總結它們的優缺點，指出結合專家系統與神經網路構造混合型專家系統的必要性；本章還介紹了神經網路子模塊的概念，提出了混合型專家系統的一般框架與設計步驟：第三章對樣本數據進行處理，包括異常數據的剔除、因子分析等，提出了信用評價混合型專家系統的具體框架結構，介紹了系統知識庫的主要部分、基於優先級的正向推理機制的流程、以及基於事實的自動解釋機制的具體實現方法；第四章介紹了面向對象技術，進而採用面向對象對信用評價系統進行分析，建立了對象模型和功能模型，並在此基礎上，採用c + +語言以規則類為例說明系統中具體類的實現，用偽代碼的形式描述了推理的演算法；第五章描述了整個系統的結構，對系統主要功能模塊和界面進行了介紹，並總結系統的特點；第六章總結了全文，指出本文所構造系統存在的不足以及對將來的展望。
  8. The dynamic equation for analyzing torsional vibration of the vehicle drivetrain is established based on analyzing the jointing process of frictional clutches, and the inherent frequency, the response of torsional vibration and the sensitivity of rigidity parameters to inherent frequency are studied

    摘要文章在分析車輛最常用的膜片彈簧摩擦離合器接合過程的基礎上，建立汽車傳動系的扭轉振動的力學分析方程；結合實際車型，分析了車輛的固有頻率、扭振響應、剛度參數對固有頻率的靈敏度。
  9. An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process

    飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力
  10. In the book of the theories of international finance and the techniques of quantitative analysis, professor pan guoling proposes a new method of quantitative analysis to solve unbalance of international payments. the article deduces two dynamic equations of net foreign assets and current account by employing the economics and mathematics methods, revealing the relation between the two accounts and the other economic parameters

    潘國陵老師在《國際金融理論與數量分析方法》一書中，提出了一種新的解決國際收支和國際債務失衡的數量分析方法，文章運用經濟學和數學方法推導出國外凈資產和經常項目收支動態方程，初步揭示了國外凈資產和經常項目收支與其他經濟變量之間的內在聯系。
  11. In the third chapter, we will study the existence and uniqueness of the classical global solution and generalized global solution to the periodic boundary value problem and the cauchy problem for this kind of equation. in the second chapter, we study the following nonlinear wave equation of higher order : with the initial boundary value conditions or with where a1, a2, a3 > 0 are constants, ( s ), f ( s0, s1, s2 s3, s4 ) are given nonlin - ear functions, u0 ( x ) and, u1 ( x ) are given initial functions. for this purpose, by green ' s function of a boundary value problem for a fourth order ordinary differential equation we first reduce the problem ( 1 ) - ( 3 ) to an equivalent intergral equation, then making use of the contraction mapping principle we prove the existence and uniqueness of the local classical solution for the intergral equation

    本文分三章，第一章為引言；第二章研究一類非線性高階波動方程的初邊值問題的整體古典解的存在性和唯一性，以及古典解的爆破；第三章研究此方程的周期邊界問題和cauchy問題的整體廣義解和整體古典解的存在性和唯一性，具體情況如下：在第二章中，我們研究一類非線性高階波動方程的如下初邊值問題：或或其中a _ 1 ， a _ 2 ， a _ 3 0為常數， （ s ） ， （ s _ 0 ， s _ 1 ， s _ 2 ， s _ 3 ， s _ 4 ， ）為已知的非線性函數， u _ 0 （ x ） ， u _ 1 ， （ x ）為已知的初始函數，為此，我們先用四階常微分方程邊值問題的green函數把上述問題轉化為等價的積分方程，然後利用壓縮映射原理證明此積分方程局部古典解的存在性和唯一性，又用解的延拓法證明上述問題整體古典解的存在性和唯一性，主要結果有：定理1設u _ 0 （ x ） ， u _ 1 （ x ） c ~ 4 [ 0 ， 1 ]且滿足邊界條件（ 2 ） ，若以下條件滿足：其中a ， b月0為常數， w
  12. In chapter one, we propose a new mixed method called characteristics mixed finite element method for a convection - dominated diffusion problems with small parameter e : we handle the convection part whth backward difference scheme along the characteristics, obtain much smaller time - trunction errors and avoid numerical dispersion on the front of the peak curve of the flow : we use a lowest order mixed finite element method to deal with the diffusion part, so this scheme can approximate the unknow function and its following vector with high accuracy at the same time

    第一章中我們對小參數對流占優擴散問題提出了新的數值方法? ?特徵混合有限元方法，即對方程的對流部分採用沿特徵線的後退差分格式求解，以保證較小的截斷誤差限並避免了在流動的鋒線前沿數值彌散現象的出現；對流動的擴散部分採用最低次混合元方法求解，以保證格式對未知函數及伴隨向量的同時高精度逼近。由於該方法中檢驗函數可取分片常數，此格式在某種意義上具有局部守恆性質。
  13. How to apply the cluster analysis method to solve the cluster of samples is narrated in details : firstly, the ordinary cluster methods and the simply analysis of the intricacy of these methods is introduced, then our rapid fuzzy cluster algorithm is particularly narrated and the experiment data are provided, at last, how we realize the automatic extraction of information form the crops " texts is introduced

    在文章的主體部分講述了如何應用聚類分析的方法解決樣本的歸類問題：首先介紹了常用聚類方法，並對它們的復雜度進行了簡要分析。然後詳細介紹了我們提出快速模糊聚類演算法，並給出了實驗數據。文章最後介紹在農作< wp = 4 >物信息文本中實現信息自動提取的思路。
  14. The paper discusses how to design the chinese character and word code to meet the various input modes at first, then designs a dynamic self - study language model, and analyses the data smoothing algorithm in the language model

    文章首先討論了怎樣設計字詞碼本結構，使之能夠滿足靈活多樣的輸入方式，繼而設計了一種動態自學習語言模型，重點分析了數據平滑演算法在語言模型中的應用與改進，最後通過一個輸入法示常式序，對改進前後不同情況下的輸入效果進行了測試。
  15. The method of change partial differential equation into ordinary differential equation is classified, the bifurcation and chaos in nonlinear schrodinger system is detected and the effectiveness of controlling chaos of buckling beam with parametric perturbation method is studied in details. chapter 7 is the summary and conclusion of the dissertation

    第六章總結歸納了將非線性偏微分方程轉化為常微分方程的變換法，研究了一維無界區域上非線性薛定諤方程的分岔和混沌性質，解析地研究了用參數周期擾動法控制屈曲梁的混沌運動的效果。
  16. In chapter six, based on the preceding chapters " research, the practicality of the full scale dr i 11 ing simulating test device has been tested by the debugging and the performance test. under simulating drilling conditions, the rock mechanical properties and the bits " dynamical tests are analyzed and set forth specifically. at the same time the effect of bottom pressure difference on the oil field exploration and development has been discussed

    第六章在前述分析研究的基礎上，通過對模擬裝置的系統調試及性能測試，驗證了全尺寸鉆井模擬裝置的實用性，在鉆井模擬條件下對巖石的機械性質、牙輪鉆頭動態測試給予了具體的分析闡述，同時還分析探討了井底壓差對油田勘探開發的影illb ，並且為宋深101井的實際施工作業提供了非常有價值的指導參數。
  17. The state estimation algorithms are the basis of information fusion. the typical single - mode tracking algorithms are dedicated. according to the mechanism of active and passive radar observation, a preprocessing method for observation data is dedicated

    狀態估計是信息融合的基礎，論文第二章首先分析了彈載平臺下，主被動雷達觀測數據形成機理和特點，對觀測預處理問題進行了研究，並根據彈載平臺數據特點，研究了幾種常用跟蹤方法。
  18. It reality individuation study inspire the learner ' s creativity, it can be said, e - learning will be a consequence in one ' s subsequence and whole life education. at this paper, we discuss the theory of network education and the key technology of making web courseware. we use two web courseware : review of dynamics and the training system of modern weather prediction as example and dicuss how to build a software of making web courseware, the flow of making a web courseware and the main technology like java applet, vr, flash. etc. at last we discuss how to use php and mysql to develop forum, search engine, exercise database and the online test system

    並以開發的大氣動力學回顧和現代天氣分析預報網路課件為實例。探討了如何開發課件製作工具以及網路課件製作的流程和常用的技術，如javaapplet ，虛擬現實， flash製作等的應用。文章還討論了如何使用服務器端編程語言php結合后臺數據庫mysql製作網路課件的輔助工具，如留言簿，學習論壇，搜索引擎，網路試題庫等。
  19. The practicality significance, the function of clinical ecg data - information management system in scientific research, clinical medical treatment and medicine teaching, international actuality in this field are summarized firstly in this paper. then the all data - information in common use at cardiopathy was concisely described. they have the characteristic of integrated in others systems, such as electrocardiograph. this paper utilize this characteristic and development an ecg data - information management system using in virtual ecg analyzer. it will provide rich and multiform clinical information resource for individual include doc., nurse, patient, clinical department, medical treatment and health protection in all levels, so much as in business. secondly, an advanced instrument manufacture technology ? ? virtual instrument technology and virtual instrument baseon it were intrduced. the auther of the paper detailedly introduced the idea, development, progress, systemic structure, specialties of vi, compared it with traditional hardware - instrument and standed out superiorities of vi

    本文首先概述開發臨床心電圖數據信息管理系統的實用意義及其在醫學研究、臨床醫療、教學上的重要作用和目前該領域國際國內現狀，簡要描述了心血管疾病科常用的數據信息，它具有與其它系統（如心電圖記錄分析系統、超聲心動圖像系統等）集成的特點，本文即利用這一特點開發出用於虛擬式心電圖儀中的心電圖數據信息管理系統，為個人（醫生、護士、病員） 、臨床部門、各級醫療保健機構乃至商業活動提供豐富的臨床醫學信息資源。接著介紹了一種先進的儀器設計製造技術? ?虛擬儀器技術以及在此基礎上形成的虛擬式儀器，文章對虛擬儀器的概念、產生和發展、系統結構、特點做了較詳細的介紹並與傳統硬體化儀器作了對比，突出了虛擬式儀器的優越性。
  20. Commands, which can be useful for processing chunks of data from both static and dynamic files

    Jacek在本技巧文章中介紹了head和tail命令，它們對于以塊方式處理靜態和動態文件中的數據非常有用。
分享友人
分享到 Line

分享到臉書