point and vector 中文意思是什麼
point and vector
解釋
點與矢量-
In local vector match method, we add the line numbers and the dispersion of direction angle between the center point and near minutiae point. we also add the direction angle of the center point. these additions enhance veracity of the minutiae feature matching
在局部向量特徵匹配法中加入了中心點與鄰近特徵點的紋線數，方向角差，中心點的方向角等特徵信息，提高了特徵匹配的準確性。 -
The best scheme was chosen after analysis and comparing and the structure was designed. at same time, the kinematics analysis was conducted, coordinate transformation matrix using d - h method was set up, and the kinematics equation direct solution and inverse solution was deduced, the velocity jacobian matrix was constructed using vector product method, and the values of displacement and velocity of some special point including the wrist point were calculated. secondly, the working space of the robot was analyzed and the axes section of practical working space was drawn
首先，作者針對機器人的設計要求提出了多個方案，對其進行分析比較，選擇其中最優的方案進行了結構設計；同時進行了運動學分析，用d - h方法建立了坐標變換矩陣，推算了運動方程的正、逆解；用矢量積法推導了速度雅可比矩陣，並計算了包括腕點在內的一些點的位移和速度；然後藉助坐標變換矩陣進行工作空間分析，作出了實際工作空間的軸剖面。 -
During the different time point, we retrieve the cell supernatant and through the electrophoretic analysis and immunoblot of the recombinant protein indicated that the cell which transfected the recombinant eukaryotic gene expressing vector could synthesis and excrete the peptide effectively
提取培養細胞總rna反轉錄cdna測序結果表明人生長激素基因組dna在家蠶bmn細胞內能正確轉錄，剪接。蛋白質電泳分析和免疫學檢測證明轉染細胞能夠有效合成並分泌hgh蛋白質。 -
Fixed point theorem and system of generalized vector equilibrium problems in the product space of topological vector spaces
乘積拓撲矢量空間中的不動點定理和廣義矢量平衡問題組 -
Based on the theory creation of space voltage vector ' s polygonal flux linkage locus, freewill partition of the ideal flux circle is realized by the software method. furthermore, different polygonal flux linkage locus ' s fluent switching point is also found, which overcomes the motor " switching failure and improves the speed adjusting dynamic performance
在充分研究磁通軌跡法原理的基礎上，採用軟體方法實現了任意多邊形磁鏈軌跡的生成；並找出了不同磁鏈軌跡間的平滑切換點，解決了切換時的電動機失步問題，提高了系統轉速調節的動態性能。 -
The main work completed in the paper is listed as following : 1. image function acquisition -, 2. read bmp files by dib format ; 3. drawing gray scale histogram ; 4. choose a optimum threshold and make gray image become binary image -, s. find image ' s contour points by making inner points become empty and apply template matching on the contour points ; 6. transform the object ' s beginning points ( pixel point ) to the ones in the image coordinate and the positions of in the corresponding three dimensions ; 7. compute the position vector and the normal vector of the object
選擇一個最佳闋值，把灰度圖像進行二值化處理； 5用掏空內部點法，找到圖像的輪廓點，然後在輪廓點上進行模板匹配； 6把輸出的目標物開始點（像素點）轉化成圖像坐標系中的點和對應的三維空間的坐標位置； 7計算目標物的位置矢量和法向矢量，根據機器人抓取面的法向矢量，找到機器人要抓取的平面； 8 -
From the point of view of risk, a index system of risk assessment of winter wheat losses caused by drought was established, including the meanings, token models and estimate methods of risk index of natural water deficiency rate, risk index of yield reduction rate and trending vector coefficient of disaster resistance capability, then on the base of these indices, the comprehensive risk index model of losses caused by drought was established and regionalized. the results indicated : the high risk region included the middle north of shanxi, some of middle of shaanxi and some of hebei in east ; the higher risk region included some of middle of shaanxi, the tangshan region and some of west of hebei ; the moderate risk region included the middle of s
從風險的角度，建立了冬小麥乾旱災損風險評估的指標體系，包括自然水分虧缺率風險指數、減產率風險指數和抗災性能趨勢向量系數的意義、表徵模式和估算技術方法，在此基礎上構建了災損綜合風險模型，並對模型參數區域化，結果表明：冬小麥乾旱災損高風險區在陜西中北部、山西中部的部分地區和河北滄州的部分地區；較高風險區在山西中部的部分地區、河北的唐山地區和西部的部分地區；中風險區在陜西中部、山西南部、河北滄州的大部分地區；低風險區在陜西中南部、河南中北部、北京市、天津市、河北中南部和山東省。 -
After the theory of the generalized point photogrammetry is introduced, its applications are presented, including computer of image parameter from vanishing point and modelling by single image, determination of image parameters by matching between vector and image, inspection of sheet - metal part and determination of plane pose by contour line matching
論述了廣義點攝影測量理論，介紹了其應用，包括由滅點計算影像參數及單像建模，由矢量與影像的匹配確定影像的參數，鈑金件的檢測與由輪廓線匹配確定飛機的姿態等。 -
An algorithm for detecting moving ir point target in complex background is proposed, which is based on the reverse phase feature of neighborhood ( rpfn ) of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray values of them are close to in absolute value but with inverse sign. firstly, pairs of points with rpfn are detected in the difference image between neighbor frame images, with which a virtual vector graph is made, and then the moving point target can be detected by the vectors ' sequence cumulated in vector graphs. in addition, a theorem for the convergence of detection of target contrail by this algorithm is given and proved so as to afford a solid guarantee for practical applications of the algorithm proposed in this paper. finally, some simulation results with 1000 frames from 10 typical images in complex background show that moving point targets with snr not lower than 1. 5 can be detected effectively
基於運動點目標在鄰幀差分圖像中所具有的近鄰反相特徵，即運動點目標的兩個位置相鄰近、灰度值一正一負，提出一種在復雜背景下，基於紅外序列圖像的運動點目標檢測演算法.本演算法利用該特徵在鄰幀差分圖像中檢測反相點對，進而構造反相點對矢量圖，最後依據累積反相點對矢量圖中多矢量首位相接的連續性檢測出運動的點目標.文中給出並證明應用本演算法能以概率1檢測到運動點目標的收斂性定理.對典型復雜背景下10幅1000幀圖像的模擬結果表明，當信噪比大於或等於1 . 5時，可以有效檢測出運動點目標 -
At first, we introduce a class of generalized s - r - kkm type mapping in g - convex space, and establish generalized s - r - kkm type nonempty intersection theorem under the noncompact setting of g - convex space. as for application, some new minimax inequalities, saddle point theorem and existence theorem of maximal elements are proved in g - convex spaces ; second, by using the generalized r - kkm mapping and generalized r - kkm theorems in [ 13 ], some new existence theorem of maximal elements, existence theorem of equilibrium point for the abstract generalized vector equilibrium problem and existence theorem of solutions for equilibrium problem with lower and upper bounds are obtained in topological spaces
首先，我們在g -凸空間內引入了廣義s - r - kkm型映像，並在非緊設置下建立了一類新的廣義s - r - kkm型非空交定理，作為應用，證明了g -凸空間內一些新的極大極小不等式、鞍點定理和極大元存在定理；其次，利用文[ 13 ]中引入的廣義r - kkm映像和廣義r - kkm定理，在拓撲空間上得到了一些新的極大元存在定理、抽象廣義矢量平衡問題平衡點的存在定理和有上下界的平衡問題解的存在性定理。 -
This paper confirms a kind of non - linear mapping relation between vibration velocity of particles on building and the influence factors, such as total explosive charge, maximum explosive charge fired at the same time, the distance between blasting point and monitoring points, peak particle velocity of ground where building is, the height from monitoring point to ground, and so on, and sets up a support vector machine ( svm ) model for forecasting the vibration effect induced by an explosion
應用支持向量機，建立了總藥量、最大段藥量、爆破點與監測點距離、構築物所在地面震動峰值速度、測點到地面的高度等因素與建築物上的質點震動速度之間的非線性映射關系，確立了支持向量機預測模型。 -
In the motion, the direction of angular momentum vector changes every moment, because there is a torque caused by gravity act on the wheel, then the wheel rotate itself and rotate around the fixed point
車輪進動實驗：在進動中，角動量的矢量方向不斷改變，是因為受到一個由重力產生的力矩，使車輪在自轉的同時又繞支點轉動。 -
Calculation of transition probability matrix and fixed vector of the well profiles in the area shows, from a quantitative point of view, the vertical evolution law of the sedimentary series and the transversal environmental difference
通過多步轉移概率矩陣和固定向量計算，從定量的角度說明了研究區內部分鉆井剖面陸表海沉積在垂向上演化的規律性及反映在橫向上的古環境差異性。 -
Thirdly, it utilizes line tracking and douglas - peucker line - simplification algorithm to realize the raster - to - vector conversion. a triangulated irregular network ( tin ) is constructed based on vector data, and dem point - array data is computed by interpolating grid on tin
第三，使用輪廓線跟蹤演算法和dpl多邊形近似方法實現等高線數據的矢量轉換;並基於等高線矢量數據建立不規則三角網，再內插格網生成dem點陣數據。 -
After absorption, the all - frans - retinal isomerizes to a 13 - c / s configuration and br undergoes a photocycle : br570 k590 l550 m410 n520 o640 br570 bacteriohodopsin is a promising biological photoelectric material. we intent to conduct a more thermostable br by site - directed mutagensis. a point ( no. 274 t, no. 274 a turn to c g ) mutation was introduced to br gene by successive pcr technique, and cloned into puc - 19 vector
本論文利用連續pcr的方法定點突變了br基因的一個氨基酸，突變位點選擇了br基因第273的t和274位的a ，把它們變為cg （ tyr替換為arg ） ，然後把突變的br基因克隆入嗜鹽菌表達載體pnov - r ，經測序鑒定的表達載體轉化br缺陷的嗜鹽菌，構建了tyr79 argbr突變體。 -
He noted that over 90 per cent of the respondents knew that the vector of dengue fever is aedes albopictus and 83 per cent of them could correctly point out the symptoms of the disease
他表示超過百分之九十的受訪者知道登革熱是透過白紋伊蚊傳播，百分之八十三的受訪者能夠正確指出此病的病徵。 -
Under the premise of ensuring its accuracy of point positions, not only is vector data obtained but its compressing is also realized with a quicker speed, more accuracy and smaller storage device
該方法在確保點位精度前提下，可獲得以弧段為單位的矢量數據，同時依據線狀要素的形態取樣，從而達到壓縮數據目的，此演算法處理速度快，精度高、存儲量小。 -
The approach to exactly calculate geometric parameters of subdivision surface, such as limiting point, tangent vector and normal vector, are illustrated. ( 2 ) the number of geometric elements ( vertex, edge, facet ) within control mesh grows exponentially as the increase of subdivision levels in general subdivision schemes
（ 2 ）在正常的曲面細分過程中，控制網格上幾何元素（頂點、邊、面）的數量是按照幾何級數增加的，會產生龐大的冗餘數據。 -
In this paper, the concepts, the historical background, the importance and current application of scientific computing and visualization of scientific computing are introduced and the visualization of computational detonation mechanics is specially expounded. based on the sumarization of the visualization software visc2d and visc3d directing at the mmic ( multi _ material in cell ), the key point of the improvement and the research contents are listed. based on the basic visualization reference model and the data file format of mmic, the file format of vector data is defined. the 2 - d data field visualization technology is described in detail. include the visualization of scalar field and vector field. the weak points of the visc2d software is overcome, and we propose the full - frame coloring mapping method and the visualization of the vector data using the clic ( coloring _ noise line integral convolution ). in addition, the method to draw and display shock wave by edge probing operator is introduced. in the design of the program, in order to overcome the shortcoming of visc2d with sdi ( single document interface ), the software vsv ( visualization of scalar and vector ) with mdi ( multi document interface ) is designed. compared with visc2d, the advantage of vsv includes : ( l ) vsv is a mdi applied software which can be used to view various kind of data, ( 2 ) vsv resolves the flash during displaying moving images which are produed by full - frame coloring method used to the visualization of scalar fields, and ( 3 ) vsv can be used to visualize vector field such as velocity. at last, the visualization of the output data from mmic in explosion and shock is realized by vsv
首先簡要介紹了科學計算與科學計算可視化的概念、歷史背景、意義及應用現狀，重點說明了計算爆炸力學中的可視化問題，在總結多流體網格程序mmic的可視化軟體visc2d和visc3d的基礎上提出了改進要點和本文的研究內容。在介紹可視化基本參考模型和mmic程序的數據文件結構的基礎上，給出了矢量數據文件的結構，詳細闡述了二維數據場的可視化技術，包括標量場和矢量場的可視化，針對原visc2d軟體的不足，給出了改進方法，提出了全幀著色映射方法和用於矢量數據可視化的基於噪聲著色的線積分卷積方法，以及提出了利用邊緣檢測運算元提取和顯示沖擊波的方法。在程序設計上，針對原visc2d軟體只適用於單文檔窗口的缺點，本文利用多文檔mdi窗口，研製了標量場與矢量場的可視化軟體vsv （ visualizationofscalarandvector ） 。 -
Based on the vector of point, the formula of moving envelope surface of the assembly part is given. according to determinant and vector theory, the method of working out the three - dimensional space arbitrary polyhedron volume is described
基於三維矢量理論和行列式理論，解決了計算三角面片的任意多面體體積及評估零件所需的實際裝配空間等問題。
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