vector addition 中文意思是什麼
vector addition
解釋
矢量加法，向量加法-
In this paper a kind of cardio - cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions have been calculated. in addition, the flow field distribution and the pressure on the particle surface are also calculated, when there is flow - round particle at the place of bifurcation, the move tendency of the particle is judged, the possible reasons of causing the atherosclerosis, thrombus, angioma are analysed
本文用邊界元方法研究了一類典型心腦動脈分支血管中血液流動的流體動力特性，計算了分支血管血液流動的速度矢量分佈，同時計算了分支附近有多個顆粒狀繞流物時血液的流場分佈，及顆粒物所受壓力狀況，給出了顆粒物的運動趨勢，分析了引起粥樣斑塊病變、血瘤、血栓的可能原因 -
In addition to avermectins, s. avermitilis produces oligomycin, a strongly toxic compound. gene deletion vector pxl05 was used to disrupt oligomycin polyketide synthase ( pks ) encoding genes ( olma ) in streptomyces avermitilis cz8 - 73, the producer of anthelmintic avermectins b and the cell growth inhibitor oligomycin. olma gene cluster in the chromosome was displaced by deletion allele on the plasmid via double crossover
本研究以產阿維菌素b和寡黴素的阿維鏈黴菌cz8 - 73為出發菌株，構建了基因缺失載體pxl05 ，並將其轉入cz8 - 73中，通過缺失載體和染色體之間的同源雙交換，對染色體上長達90kb的寡黴素聚酮合酶（ pks ）基因簇（ olma ）進行了缺失。 -
It should be clear that vector addition is commutative.
可清楚地看到，矢量加法滿足對易律。 -
Firstly, we study the construction of emotion - speech template database, and analyze the common features such as pitch, energy and formant. after choosing the useful features by using fuzzy entropy effectiveness analysis, we get better performance with the application of neural network. in addition, we propose some more efficient features such as speech rate, pitch slope, mel - frequency cepstral coefficients and its transient parameters, and design a processing model based on vector quantization for cepstral features to fusing different features
本文首先介紹了情感語音數據庫的建立情況，然後研究了基音頻率、振幅能量和共振峰等目前常用的情感特徵在語音情感識別中的作用，並且通過一種基於模糊熵的特徵有效性分析方法進行了有效特徵的篩選，應用人工神經網路建立了初步的語音情感識別模型，經過實驗發現特徵篩選后系統的識別效果有著一定程度的提高。 -
Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located
首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。 -
The addition formula of spherical harmonics function of degree n and order 1 is derived using the relations between coordinate varieties after coordinate rotating and the property of the associated legendre polynomial. the relations among the magnetic vector potential, the modified magnetic vector potential and the second - order vector potential ( sovp ) are shown going forward one by one. it is explained that the solutions of electromagnetic fields in different coordinate systems can be transformed and an example having analytical solution is given
利用坐標旋轉后球坐標變量間的關系和連帶勒讓德多項式的性質推導得到了n次1階球諧函數的加法公式；以遞進的方式說明磁矢量位、修正磁矢量位與二階矢量位的關系，寫出了引入二階矢量位的過程；以時諧場矢量邊值問題為例，闡明了不同坐標系下電磁場解的相互轉化原理，給出了一個解析解的轉化例子；在球坐標下，引入了較球矢量波函數更普遍的兩類矢量函數，給出了其在球面上的正交關系。 -
In addition, phenylalanine is used in aspartame production and acts as intermediate and well vector in synthesis of some anti - cancer drugs
苯丙氨酸既是合成新型甜味劑aspartame的原料，又是合成一些抗癌藥物的中間體和良好載體，市場需求日益增加。 -
The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,
基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。 -
Line integral convolution ( lic ) is one of texture - based methods for vector field visualization. even in the vector direction changing sharply fields, the method can show the direction of the vector field well, and display details of the vector field better. in addition, it can fully disclose the relativity among every spot of the vector field
線積分卷積（ lineintegralconvolution ， lic ）方法是一種基於紋理生成技術的矢量場可視化映射方法，線積分卷積法能連續反映場中各點切矢，即使在矢量方向變化很大的區域，也能揭示出矢量的方向，可以較好地表達出矢量場的細節。 -
Based on the extended boundary condition method and addition theorem of vector spherical functions, this paper study the light scattering problems of aggregate spheres from the angles of a single sphere, two - sphere system and multi - spheres system
本文基於擴展邊界條件法及矢量球諧函數的加法定理，通過嚴格求解maxwell方程所得到的散射傳輸矩陣，對與入射波波長可比擬的群聚球形粒子的散射問題進行了研究。 -
In addition, in order to guarantee the smoothness of weight vector distribution in output space, mfknn2 method is introduced a smooth factor in the modification of connective weight coefficient between neuron
同時對mfknn2中神經網路的權值修改還引進一個平滑因子，以保證權矢量在輸出空間分佈的平滑性。 -
The property of continuous function and the formula of probability addition to the convergence in probability of continuous function sequence of random vector is used
摘要將依概率收斂的一維隨機變量序列的連續函數仍依概率收斂的結論推廣到隨機向量序列的情形。 -
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 -
In addition, the thesis has gained a little innovative achievements which are differ from other scholars, such as classifying the carrying objects of environmental carrying capacity, establishing the index system of environmental carrying capacity, unifying dimentions, modifying the initial coefficients and making use of hierarchy and vector analytical method to analyze environmental carrying capacity quantificationally
本文在環境承載力承載對象的分類、環境承載力指標體系的構建、統一量綱的方法、初始權重的修正以及採用層次矢量分析法量化研究環境承載力等方面進行了不同於其他學者的新嘗試。 -
Compared with a reported cmv - cp gene sequence, the homology of nucleotide sequences were 100 %. the sequencing result also demonstrated the recombinant vector pet - 22b - cp has a proper orf encoding 218 amino acids. the recombinant vector was transformed into bl21 ( de3 ) cells. transformants were grown and induced by the addition of isothiopropylgalactoside ( iptg ) to a concentration of imm with continued shaking at 37 ?
酶切鑒定及序列測定表明，重組表達質粒pet - 22b - cp連接區域符合設計要求，具有正確的開放閱讀框架，插入片段含有218個氨基酸的完整編碼區，其核苷酸序列與報道的cmv - cp基因的同源性為100 。 -
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。 -
The exact location of reflection and diffraction points is essential in order to calculate the polarization components of the reflected and diffracted fields and their trajectories. then, a vector addition of the received fields is carried out to obtain the total received field strength and, subsequently, the path loss along a predetermined route
該模型基於幾何光學理論、一致性幾何繞射理論和鏡像理論，通過大量的反射和繞射射線軌跡得出源點至場點的多條路徑，然後由矢量計算求出各場點處的路徑損耗。 -
The coordinate transformation rules, the combination characteristic of the transfer function are discussed. the solution procedure of series mechanical system is deduced by applying dual - vector addition and matrix multiplication. and the mathematical models are obtained
根據建立的數學模型，本文提出了相應的按位存儲數據結構以及樹型遞歸分解演算法，實現了狀態變換矩陣（包括類型、方向及變換特徵）的自動分解。 -
Performs vector addition on the two specified
對兩個指定的 -
This tests your knowledge of the principles of vector addition and the summation of forces around a point
這個測試你對向量加法原理及作用於同一點的外力總合的認知。
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