矢量平衡 的英文怎麼說

中文拼音 [shǐliángpínghéng]
矢量平衡 英文
vector balancing
  • 矢 : Ⅰ名詞1. （箭） arrow 2. （尿） excrement; dung; feces 3. （姓氏） a surname Ⅱ動詞（發誓） vow; swear
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 平 : Ⅰ形容詞1 （沒有高低凹凸 不頃斜） flat; level; even; smooth 2 （高度相同; 不相上下） on the same l...
  • 衡 : Ⅰ名詞1 （秤桿） the graduated arm of a steelyard2 （稱重量的器具） weighing apparatus3 （姓氏） a...
  1. Then this paper makes some overview and simulation on the application of three precoding algorithms under the flat fading channel, which are linear preequalization, tomlinson - harashima precoding ( thp ) and lattice reduction - aided ( lll ) vector precoding

    本文對三種常見的預編碼演算法在平坦衰落通道下的應用進行了綜述和模擬研究，包括迫零線性預均衡、 thp預編碼和格約簡輔助矢量預編碼等演算法。
  2. As mentioned above, we have not explicitly used the first condition for equilibrium, that the vector sum of the forces be zero.

    如上所述，我們沒有直接應用第一平衡條件，即力的矢量和為零。
  3. In so far as linear motion is concerned, a body is in equilibrium if the vector sum of the forces acting upon it is zero

    就線性運動而論，如果作用於嚴格物體上的諸力的矢量之和是零，那麼這個物體就處于平衡狀態。
  4. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  5. Win600 automobile lift has the same control system as freight lift, i. e. micromputer control or plc control, and the same tracyion system as freight lift, i. e. vvvf vector control, to make it safe, reliable, stable, comfortable, energy - saving and of high leveling precision as freight lift. the car is equipped with four or six symmetric guide rails, to solve the problem of wobbling caused by the unbalance load of car and reduce the noise of operation, the door is equipped with reliabe optical screen protction or infrared electronic protecyion, to ensure the safe entry and exit of automobile. the double - controller design inside the car gives convenience to the operation of automobile driver

    Win600系列汽車電梯的控制系統與載貨電梯一樣採用微機或plc控制，拖動系統樣採用vvvf矢量控制，因此，同樣具有安全可靠平穩舒適節能環抱平層精度高的特點。轎廂採用對稱的4根活6根導軌導向，解決了轎廂裝載不平衡引起晃動的問題，降低了運行的噪音。轎門裝有高可靠的光幕保護活紅外線電眼保護，保證汽車安全的進出。
  6. 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
  7. And got a novel cvq algorithm. because the data of cvq has been split by the algorithm already, it is the right occasion of of parallel program with domain partition. so we implement the parallel algorithm of this algorithm

    然後我們又研究了分類矢量量化器，得到一個高效的分類量化器，並使用并行演算法加快了其處理速度，並討論了負載平衡的問題。
  8. The acceptability our rejection and the depiction of some content in the course " mechanisms and machine theory " is discussed, ( e. g., group dividing, solving steps of the graphical method for vector equation, versions and methods for analytical kinematic analysis, inversion design for linkage mechanisms, crank angle between the two limiting positions, design formulae for cam mechanisms, classification of combined mechanisms, formula of the radius of addendum circle of gear, balancing of machinery, etc. ) and some new opinions are presented

    摘要就《機械原理》課程的某些內容（如：拆桿組的方法、矢量方程圖解法的解題步驟、運動分析解析法的版本和方法、連桿機構的反轉法設計、極位夾角、凸輪機構設計公式、組合機構的分類、齒輪齒頂圓半徑公式、機械的平衡等）的取捨和敘述進行探討，提出一些新的看法。
  9. Sets up three - dimensional movement modal of towed - cable, the vector dynamic equilibrium equation is expanded under local coordinate, and numerically discreted by central difference on time and space through transforming eular angle

    摘要建立拖纜的三維運動模型，通過歐拉角的變換把拖曳線列陣微元段矢量動力平衡方程在局部坐標系下展開，在時間和空間上作中心差分數值離散。
  10. The system uses the permanent magnet synchronous machine as the driver motor based on the idea of polygonal flux linkage locus and the permanent magnet brush - less motor is as the momentum balance motor by means of speed and current loop in order to track driver motor precisely and rapidly. the harmonious control of driver motor and balance motor is realized by making full use of the dsp hardware resource and complicated programmable logic device. the software design is composed of c and assembly language to realize motor control arithmetic of polygonal flux linkage locus

    衛星天線伺服控制系統以正弦波永磁同步電機作為驅動電機，採用多邊形磁鏈軌跡法（電壓空間矢量法）的控制策略；動量平衡電機採用永磁無刷直流電機，通過電流環、速度環達到快速、精確跟蹤驅動電機的目的，確保了衛星姿態恆定；設計方案中充分利用了dsp硬體資源和復雜邏輯陣列實現了驅動電機和平衡電機的協調控制，並通過c語言和匯編語言的混合編程實現了電機的多邊形磁鏈軌跡控制演算法。
  11. 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。
  12. Based on clear boundary condition of dam shoulders, with rigid limit equilibrium vector method, baihetan hydroelectric power station dam shoulders anti - sliding stability analyzing program is compiled. then, by using above program, the anti - sliding stability of dam shoulders in different modes and different load patterns are calculated in respectively, and their stability is evaluated. the analysis results indicate that the anti - sliding stability of baihetan dam shoulders can meet the need of arch dam design

    在查明壩肩抗力體邊界條件的基礎上，利用剛體極限平衡分析中的矢量法在文獻[ 1 ]基礎上編制了白鶴灘壩肩抗力體抗滑穩定性分析程序，並對白鶴灘壩肩抗力體的不同荷載情況下大塊體的穩定性進行了評價，結果表明：白鶴灘壩肩抗力體的穩定性總體上達到了拱壩設計的要求。
  13. The relation among all short - circuit current in each winding is described, and the rms value and peak value equation of short circuit current are concluded in this paper

    本文從平衡變壓器的工作原理入手，建立平衡變壓器各繞組中電流之間的電流映射關系矩陣和矢量關系，推導平衡變壓器短路電流有效值和峰值的計算公式。
  14. At the same time, we especially study a class of abstract generalized vector equilibrium problem ( in short, agvep ) in g - convex space, using the generalized s - r - kkm type theorem, we establish some new existence theorems of equilibrium points for the agvep in noncompact g - convex spaces

    同時，我們在g -凸空間內著重研究了一類抽象廣義矢量平衡問題（簡稱agvep ） ，利用廣義s - r - kkm型定理在非緊g -凸空間內建立了一些新的抽象廣義矢量平衡問題平衡點的存在定理。
  15. Model dcw light - spot vectormeter, designed to from a complete set with a dynamic balabcing tester, is served as a display meter for phases and ampiltudes of dynamic unbalancing quantites. the meter is composed of two sets of measuring mechanisms in moving coil system, and is also put to use lightspot indication as well as polar scale

    Dcw型光點矢量表是供動平衡試驗機配套作為動態不平衡量的相位和幅值的顯示儀表，它是由2組磁電系測量機構組成並採用光點指示及極坐標標度。
  16. Unbalance vector measuring device

    不平衡矢量測量裝置
  17. Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent

    本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。
  18. Secondly, based on the defects of the uptodate balancing machine which were employed in the motorcycle manufacture plants, this dissertation has presented a new method on the means of checking unbalance mass of the motorcycle single - cylinder engine crank - connecting rod mechanism. it has adopted the hard - bearing balancing machine as the prototype, utilized tow group of resistance sensors placed in vertical direction with one another to pick up the information which stand for the inertial force of the motor engine crank set when it is running

    其次，通過對當前國內外曲柄連桿機構動平衡試驗的現狀及其存在問題的分析研究，提出了一種新的測試方法：在工作原理上採用硬支承型測力式動平衡機，在測量方法上應用互成90的兩點測量來矢量合成任意一點旋轉慣性力大小及方向，這也是其不同於以往試驗機的最大之處。
  19. Such integra ting feature vector is used for building k dim e nsion gaussian m odel, whose param e ters are estim ated by an expectation - m a xi m i zation ( em ) algorithm, and then the resulting block - cluster m e mberships provide a segm entation of th e im age. after segm ented, a m e thod of param e ter - trimm e d average for describing re gion is proposed, of which the param e ter is decided by area and position of region dire ctly. the sim ilarity m easure between two im ages is defined by integrating properties of all regions in the im age

    文中先將圖像分成4 4小塊，各塊的顏色、紋理、位置特徵構成8維的特徵空間；在該空間中對得到的8維特徵矢量建立一個k維高斯模型，應用期望最大em演算法估計模型參數，產生的塊特徵-聚類隸屬度函數實現對圖像的分割；為減小分割演算法不確定性對檢索效果的不良影響，對得到的區域採用參數均衡平均特徵表示，其中參數的確定直接與區域的面積、位置有關。
  20. The results indicate that asvg not only can compensate reactive currents, but also can effectively filter the harmonic currents, negative sequence currents and zero sequence currents

    模擬結果證明基於空間矢量調制的asvg既能夠補償不平衡系統的無功功率，同時又能夠有效地濾除系統中的諧波、負序和零序等有害電流。
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