linear tangent 中文意思是什麼
linear tangent
解釋
線形-
Thirdly, from the idea of locally linear approximate, another tangent - plane algorithm is presented for the distance between the convex nurbs surfaces. the critical step is the construction of the support mapping by gjk and lc to search for nearest points, and emphases are laid on dealing with isotropic cases and choosing initial iterated points. it is also proved that no isotropism during iteration would take place if initial iterated points are positive points
切平面法是運用gjk和lc構造支撐映射的原理而設計的一個搜索近點對的迭代法，著重給出了迷向情況的處理和初始迭代點的選取方法，並證明了只要將初始迭代點取為陽點，就不會出現迷向情況。 -
The united signal for the isar signal processing is called the cross - range dimension signal. the cross - range dimension signal of the target with nearly tangent motion is a linear frequency modulated signal
由推導的準切向運動目標的方位向信號的相位表示式可以看出，此信號近似為線性調頻信號。 -
If asphalt concrete specimen is in stabilization by exert confining stress before the static triaxial test, it is then found that under the condition that time is long enough, the volume of the specimen will shorten gradually and stable around a fixed value, and the amount of compression is essentially the half of the volume of void itself. it is also found that in stabilization by exert confining stress the linear phrase will be shorten in the figure of the static triaxial test of specimen, while the initial tangent modulus will be augment. 3
在進行靜三軸試驗以前先對瀝青混凝土試件進行圍壓穩定，發現在時間足夠長的條件下，試件的體積會逐漸縮小，並逐漸穩定在某一定值，其壓縮量基本上為其本身孔隙體積的一半；經圍壓穩定后的試件靜三軸試驗曲線上的線性階段明顯縮短，而初始切線模量增大。 -
The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model
非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。 -
Tangent linear and adjoint method of " on - off " switches are studied in this paper
本文研究了四維變分資料同化中有關「開關」變量的切向線性化和伴隨問題。 -
The two analytic examples show that : if the heating and moistening due to convection at the switch - on point is much smaller than all the other terms in the tendency equation, then keeping the " on - off " switches the same as the basic state will produce the right tangent linear model and adjoint model
兩個解析的例子表明：只要「開關」處的對流引起的加熱和加濕遠小於傾向方程的其它項，則保持「開關」變量與基態一致，能夠正確得到切向線性模式和伴隨模式。 -
Based on the virtual work increment equation of updated lagrangian formulation, tangent stiffness matrix of spatial beam / truss element is obtained. according to base assumptions and catenary equation of cable, the iterative formulations of tangent stiffness matrix and nodal force of the spatial two - node catenary cable element are put forward. therefore the entire geometrical non - linear finite element theory for the analysis of suspension bridges is established
本文的研究工作和取得的主要成果有: 1 .將大旋轉小應變空間梁（桿）單元與兩節點空間懸鏈線索單元結合起來，形成了一套完整的適合於懸索橋結構分析的幾何非線性有限元計算方法。 -
But adjoint method and lsv method are based on linear theory and can only describe the development of small perturbations during the validity period of tangent linear model
在計算得到切線性模式的奇異向量后，可以用這些奇異向量構造初始誤差。線性奇異向量方法也是一種線性理論，只能描述切線性模式有效時段內小擾動的發展。 -
The experimental results indicate that the tangent stress keeps quite linear relation with the variation of the time in fixed transmission distance of lcr wave in elastic range. also, the experiment results prove correctness and feasibility of the methods for measuring and processing lcr wave in stress measurement. the research provides beneficial reference for the application of tangent stress measurement in elastic media from theory to practice with tdc
實驗數據表明:在試件的彈性范圍內，試件內部的切向應力與lcr波在固定傳播距離下的聲時變化有著良好的線性關系;證明了基於tdc - gp1的測試信號處理方法在用lcr波進行切向應力測量的可行性和正確性，為彈性介質中的切向應力測量從理論研究走向實踐應用提供了較高的參考價值。 -
A linear state - space model is modeled for the system identification and prediction at the tangent space of working point. the errors of modeling and
在局部的切空間上對系統進行線性建模和預測，同時利用在線學習的神經網路補償局部線性模型的建模和預測誤差。 -
The forward kinematics simulation results showed that accelerates of the end - effector obtained from simulation was equal to that of the given. the relation between the velocity of the end - effector and simulation time was nearly linear with gentle tangent slope, and the position varied with time continuously and smoothly without any vibration during moving
正運動學模擬結果表明，末端執行器加速度與給定加速度一致，速度與時間基本呈線性變化且斜率小；位置曲線變化平滑，無振動現象，滿足正常工作要求。
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