basic vector 中文意思是什麼
basic vector
解釋
基本矢量-
Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed
文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性，導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程，並研究了掃描遠場的非對稱性。 -
As the core of the optical processor, optical vector - matrix multiplier ( vmm ) is a basic optical device of the optical computer
光學矢量-矩陣乘法器是光計算機中最基本的一種功能部件。 -
The feasibility of decomposition of transition firing sequence, the application of them in the detecting lfs and the reverse course of decomposition - synthesis are discussed. they provide theoretic basis for our algorithm in the field of petri net. supported by the above, two main part is included in the algorithm : at first, x is transacted according to the following method in order to get a set of xb named as basic vector of x which is the firing count vector of a directed path without circle if md is reached from m0 in the rg ( m0 )
在變遷序列分解的指導思想下，我們的演算法主要通過以下兩步工作完成： （ 1 ）首先對給出的已知條件中滿足狀態方程的n維非負整數向量進行處理，得到一組x的基礎向量x _ b ，使得在petri網的可達標識圖中，若存在一條由m _ o到m _ d的有向無環路，則x _ b為這樣的路上變遷引發序列的發生數向量。 -
This paper studies the calculation methods of shipping shaft torsional vibration using holzer method, and put great emphasis on to study the basic process of calculation of shipping shaft torsional vibration and software designed, specially in the relation between the average indicate pressure and coefficient, between vector and coefficient proceeds and so on for deep into with the detailed discussion and research, rectified the some mistake, here foundation top, developed the new software of shipping shaft torsional vibration calculation
本文以霍爾茨（ holzer ）法作為船舶軸系扭轉計算的計算方法，著重研究了船舶軸系扭轉計算的基本過程和程序設計，特別對影響船舶軸系扭轉的幾個關鍵因素?平均指示壓力與簡諧系數的關系、干擾力矩與簡諧系數的計算與相互關系等進行較為深入和詳細的討論與研究，糾正了以往有關船舶軸系扭轉計算的一些錯誤。 -
Due to these basic problems and also because of the need to include information on specific domain, this paper proposes an efficient strategy of studying user ' s interests, which is based on temporal difference method, a re _ inforcement learning algorithm, and vector representation
由於這些基本問題以及對特定領域的信息學習的需要，本文以強化學習的時間差分法和向量表示為基礎，提出了一種高效的學習用戶興趣的策略，並設計了一個學習用戶興趣的用戶界面。 -
By analyzing the basic principle of voltage space vector pwm, a method is proposed to choose the zero vectors dynamically according to the power factor angle of the load and the concept of the lag angle of non - switching sectors
在分析了空間矢量pwm基本原理的基礎上，提出了一種根據負荷功率因數角動態分配零矢量的方法，並引入了不開關扇區滯后角的概念。 -
At first the paper begin to study the foundation of digital curved face and space meshing principle, introduce the basic knowledge of curve theory and curved face theory, explain the mathematical tools of vector turning and coordinate conversion in the paper ; analyse the motion and relative motion of rigid body, provide the condition of gear driving continuous contact and equation of conjugate meshing
論文首先從參數化曲面和空間嚙合原理基礎出發，介紹了曲線論和曲面論的基本知識，對課題研究重的數學工具矢量回轉和坐標變換進行了說明;分析了剛體的運動和相對運動，根據空間嚙合原理給出了輪齒傳動連續接觸的條件和共軛條件方程。 -
The main contents of the study as follows : ( 1 ) an introduction to the space vector theory and its application on the modeling of pmsm is presented firstly, which shows the basic idea of pmsm dtc. a comparison of dtc in asynchronous machine and pmsm is made as well. in order to take the full advantage of the dtc, the pmsm has to be properly selected
本文的主要內容包括： （ 1 ）由空間矢量模型推導出永磁同步電機的磁鏈、電壓和轉矩的公式，描述了永磁同步電機轉矩直接控制的基本控制機理，分析了永磁同步電機與感應電機在轉矩直接控制方式上的不同之處以及轉矩直接控制對永磁同步電機的要求。 -
Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly
但是高性能的交流調速系統實現很困難，這是因為交流電機是多變量、強耦合的非線性系統，不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題，其基本思路? ?應用坐標變換將三相等效為二相，實現定子勵磁電流分量與轉矩電流分量之間的解耦，達到對交流電機磁鏈與電流分別控制的目的，交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步，計算機技術飛躍發展，高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中，促進矢量控制迅猛發展，日趨成熟。 -
Taking gis software ( arc / info and arcview ) and visual foxpro as basic plat, protracted the system maps of land resource, those basic subject maps included land use status map, land types map, soil types map, grade map and soil organic substance map, combing with former summarizing research results, built the spatial basic database of land resource ; based the spatial database, by the means of attribute table manipulation and take the map plot as basic unit to get the subject attributes of basic information, combined with social economy attribute information, built the attribute database ; take the spatial basic database as basic work, by the means of vector piles to get the land resource dynamic movement system maps, included land use status, land types and soil organic substance dynamic movement map
以gis軟體（ arc info 、 arcview ）與visualfoxpro為基礎平臺，繪制完成土地資源的系列圖，包括土地利用圖、土地類型圖、土壤類型圖、坡度圖、土壤有機質圖等基礎專題圖件，結合以前的工作成果，構築土地資源的空間本底數據庫；通過空間疊加分析，得到基礎單元圖斑，採用屬性表操作的方法獲取基礎單元圖斑的專題屬性信息，結合社會經濟屬性信息，建立屬性數據庫；以空間本底數據庫為基礎，採用矢量疊加對比分析的方法，得到土地資源動態變化系列圖，包括土地利用、土地類型、土壤有機質等動態變化圖。 -
The basic neural networks are linked with each other in the way of layers, and each layer corresponds to its own fault property vector set ( or fault omen vector set ) - part of the whole fault omen space that is constituted of fault omen vector sets
基於這一思路，文中作者，將競爭網路組織與bp網路相結合，以此神經網路結構作為故障診斷專家系統的學習、推理的核心，建構了離心輸油泵的故障診斷專家系統初步模型。 -
And the basic two - dimensional transient state equations for semiconductor device are dispersed and linearized. the matrix - vector form of the basic functions is get. and the solution methods are also discussed
離散和線性化了二維瞬態半導體基本方程，並得到了其矩陣-矢量方程形式，同時還討論了其求解的方法。 -
Basic linear algebra in matlab ?. vector and matrix addition and multiplication. solving sets of linear equations using matrices
使用matlab軟體中的基礎線性代數、向量和陣列的加法與乘法，以及使用陣列解決多組線性方程式。 -
A linear programming method of vector loop used in the analysis of mechanism motion and its error was introduced, the possibility of using the sensitivity of kinematic analysis for error was analyzed, and it was proposed for the error analysis model of the mechanism to make equivalent substitution for the dimensional error with basic kinematic joint element ( kinematic pair ) and as well to implement the linear programming method of vector loop for error analysis within the adams
摘要介紹機構運動分析與誤差分析的向量環路線性規劃法，分析運用運動分析靈敏度進行誤差分析的可能性，提出在機構誤差分析模型中用基本運動連接元素（運動副）對尺寸誤差進行等價替換，使誤差分析向量環路線性規劃法在adams中實現。 -
The technology of spectral recognition is key to spectral quapitative analysis. for quickly recognising spectral signal, the method of spectral recognition based on based on multiple features and neural network is adopted. the model transfer is a basic method to solve universal and comparable performance of spectrometers. the method based on support vector machine and piecewise direct standardization is put forward for solve the question of nonlinearity 、 small - sample
深入探討了光譜信號的識別問題，對光譜識別的基本方法和光譜信號的特徵提取方法進行了相應的分析研究，提出了採用多特徵和神經網路構建光譜識別框架的方法，以實現光譜信號的快速正確地識別。 -
In this thesis, the basic arithmetic of piv software - cross - correlation arithmetic is introduced in detail, during the data process, through processing the two sequential images by the cross - correlation arithmetic, the vector charts of particles velocity can be obtained, so is the chart of absolute velocity, with velocity decomposed into the radial velocity and axial velocity
本文對試驗所獲得的連續圖像通過互相關演算法，獲得顆粒速度矢量圖，並將速度分解為徑向速度和軸向速度，對每一小區域內的顆粒按速度方向不同進行速度平均，獲得顆粒的平均速度分佈曲線。 -
Direct torque control using space vector modulation ( svm - dtc ) scheme is discussed and the detailed designed, including space vector choosing and modulating, to overcome the control difficulties coming with the characteristic of low inductance. comparing with the basic dtc, the simulation results confirm the feasibility and good performance of this strategy. in order to reduce the torque error in dynamic state resulted from the nonlinear relationship between the torque and torque angle, a proportional - plus - integral ( pi ) torque controller with variable proportion is presented to ensure exact and quick control of torque in dynamic state
系統的闡述了永磁同步電機直接轉矩控制理論，分析了改進后的svm - dtc控制策略，並具體設計了控制技術的實現方案，包括參考矢量的生成和空間電壓矢量調制的方法；為減小電磁轉矩與轉矩角非線性關系這一因數給電機電磁轉矩動態調節造成的誤差，本文實現了變比例系數轉矩pi調節器的方案，確保了系統穩定性的同時，實現了電磁轉矩在動態過程中快速而準確調節。 -
Now there are two basic target recognition strategies, such as processing from bottom to top, which is called data - driving method, and processing from top to bottom, which is called knowledge - driving method. the former begins with low layer processing for example, general segmentation, label and feature extraction, then judges whether the feature vector extracted from the labeled area is in accordance with the feature vector of the object model. the latter firstly brings forward a hypothesis on probably existed feature, secondly proceeds with purposeful segmentation, label and feature extraction, lastly judges whether the feature vector extracted from the labeled area is in accordance with the feature vector of the object model
目標識別在工農業生產、國防建設中具有極其重要的地位，目前目標識別的演算法常用的有兩種，一種是由下而上的數據驅動型策略，即不管目標屬於何種類型，一律先對原圖像進行一股性的分割、標記和特徵抽取等低層次處理，然後將每個帶標記的已分割區域的特徵矢量與目標模型相匹配；另一種是由上而下的知識驅動型策略，即先對圖像中可能存在的特徵提出假設，根據假設進行有目的地分割、標記和特徵抽取，在此基礎上與目標模型進行精確匹配。 -
Integrating raster with vector methods of updating the basic land - use map based on 3s technology is becoming one of the most important developing direction in 3s application field ; land - use and cover change field over the world
利用3s技術進行土地利用基礎圖件更新已成為國內外3s應用領域和土地利用與覆被變化領域（ lucc ）一個興起的研究方向。 -
Considered the relationship between the dirac structures of poisson - nijenhuis manifold and the basic vector field, we proof that the basic vector field can keep the dirac structures of poisson - nijenhuis manifold which discussed before
考慮了基本向量場與dirac結構的關系，在前三節的基礎上證明了基本向量場可以保持上述李雙代數胚上的dirac結構。
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