minimum velocity 中文意思是什麼

minimum velocity 解釋
最低速度
  • minimum : n (pl minimums ma ) 最小,最低,最少限度;【數學】極小(值)。 the irreducible minimum 無法減少...
  • velocity : n. 1. 迅速;快速。2. 速度,速率。3. 周轉率。
  1. We first consider this minimum velocity for horizontal flow, the saltation velocity.

    首先討論在水平流動時的最低速度,即沉積速度。
  2. The developing ratio of its long - term fc is up to 25 %. and the ultrasonic velocity was inspected out by way of ultrasonic - concrete technique : the maximum value was 5376m / s ; the minimum was 4386m / s. this explained that hpc in the experiments was very close - grained

    採用超聲波混凝土檢測技術測得試件28d的最大波速值為5376m s ;試件最小波速也達到了4386m s ,這表明本試驗所獲得的混凝土試件的密實程度是相當高的。
  3. The velocity varies from 61. 5cm / s ( maximum ) in june to 48. 1cm / s ( minimum ) in march in the kuroshio extension, and the extreme appear at the position of the first meander. the extreme minish, and the month and position of the extreme change accordingly as it deepens

    黑潮延續體的表層流速最大值則由6月份的61 . 5cm / s (最大值)變化到3月份的48 . 1cm / s (最小值) ,極值則出現在黑潮延續體西段大彎曲路徑的第一個峰處。
  4. Other aspects of the minimum velocity in a horizontal pipe for pseudo-homogeneity are discussed in chapter 11.

    水平管中假均勻流體最小速度的其他方面在第十一章中予以討論。
  5. Chapter two constructed the mathematical model of robot and its environment solved by the fem analysis. the functions or relations between the robotic parameters and its drive forces, thickness or its velocities were given, and also the functions or relations between the environment and the robot force, friction, robot velocity, minimum thickness of film or sustain force of dynamic films were given

    論文第二章通過建立機器人和環境的數學模型,利用有限元方法求解其中的n - s方程,得出管道中微型機器人的各種設計參數與機器人的驅動力、形成的最小潤滑油膜厚度和機器人的運行速度之間的關系曲線,研究了管道環境與機器人驅動力、摩擦阻力矩、機器人運行速度、形成的最小潤滑油膜厚度、油膜的承載能力之間的關系。
  6. Irrigation water requirement per time = ( soil water irrigation maximum - soil water irrigation minimum ) ? scheming wetted soil layer depth. irrigation cycle and irrigation times were decided by soil water irrigation maximum, minimum and consumption velocity

    灌水周期和灌水次數由灌溉飽和點與補償點及土壤水分消耗速率決定,表現為強耗水期灌水周期短,灌水次數多,其後依次按中、弱、微耗水期灌水周期增長,灌水次數減少。
  7. The surface current velocity displays the seasonal variability, too. the velocity varies from 71. 6cm / s ( maximum ) in december to 55. 4cm / s ( minimum ) in may in the kuroshio south of japan, and the position 01 extreme appear to the south of kii peninsula

    黑潮表層流速最大值同樣存在著季節性變化特徵:日本以南黑潮表層流速最大值由12月份的71 . 6cm / s (最大值)變化到5月份的55 . 4cm / s (最小值) ,極值均出現在紀伊半島以南海域。
  8. The design method of double crank mechanism and optimum transmission double crank mechanism are presented according to the conditions of minimum transmission angle, the time ratio, the factor of velocity variety or the minimum size

    摘要研究了按照最小傳動角、速度變化系數、行程速比系數以及尺寸和最小等條件設計雙曲柄機構以及最佳傳動雙曲柄機構的方法。
  9. ( 6 ) the analysis on singularity configurations of the manipulator were investigated by the singular value decomposition of jacobian matrix, which was treated with the damped least - square method in the motion. from the results obtained it was indicated that the minimum singular value of manipulator calculated by the damping jacobian matrix were far from zero position. velocity, position and accelerate of all the joints of manipulator moved regularly, consequently the problem that the joint of mani

    ( 6 )通過雅可比矩陣奇異值分解進行番茄收獲機械手奇異性分析,並採用阻尼最小二乘法對機械手運動中的奇異位形進行處理,使番茄收獲機械手最小奇異值遠離零點,各關節運動速度、位置和加速度運動無異常波動,解決了機械手在奇異位形處某些關節運動無法控制的問題。
  10. Numerical results are obtained for velocity, temperature and concentration profiles, variations of both nusselt and sherwood numbers under different buoyancy ratio and inclination angles of = 15 - 90. at a given inclination angle, heat and mass transfer rates decrease with heat and mass buoyancies and the buoyancy ratio b decrease from high positive values, and then increase again with the buoyancy radio b further decreasing after the velocity and transfer rates reaching a minimum

    研究結果表明:傾斜角度一定,當熱浮力與物質擴散浮力共存且二浮力之比b從較高正值變化到較高負值時,流體速度和熱質傳遞速度從高逐漸變低並出現最小值,此後隨著向下浮力的增大,流體向下流動且隨| b |的增大而加速,熱質傳遞速率隨| b |的增大而重新增大。
  11. The flow maldistribution parameter s decreases from 1. 210 to 0. 209 and the ratio of the maximum velocity to the minimum decreases from 23. 163 to 1. 756

    此研究結果對于板翅式換熱器的優化設計具有重要意義。
  12. The several ones that have more lager sensitivity to embankment settlement are found out. then, aimed at the traditional three - layer bp network ' s shortages : easily getting into local minimum value and slow convergence, the modification combined momentum method with self - adaptation study velocity is made, and one improved bp network is put forward. finally, according to the results from above sensitivity analyses, the nonlinear model main parameters of each natural layer in roadbed are approximately rectified using the improved bp network technology founded on its stronger nonlinear mapping capacity and the settlement measurements

    採用非線性有限元程序,對鄧肯-張模型中8個參數與路堤沉降的關系進行了詳細分析,找到了影響沉降的主要參數;接著,針對傳統的三層bp網路具有收斂速度慢、易陷入局部極小點等不足,對其進行了修正,提出了改進的bp神經網路模型;最後,根據上述靈敏度分析結果,基於改進的bp網路模型較強的非線性映射能力和前期沉降實測資料,對路基中各天然土層的非線性模型主要參數進行了反分析修正; ( 4 )路堤沉降計算一維法中考慮應力歷史、側向變形的研究。
  13. According to this paper, satisfactory results can be obtained by using maximum and minimum velocity and encircle of acoustic curves building control function to restrain seismic inversion

    本文提出的利用最大、最小值和速度包絡約束的方法,可以取得好的效果。
  14. It was observed from the inverse kinematics simulation results that the position, accelerate and velocity minimum - norm solution of joint 1, 3, 7 of the manipulator were controllable with no abnormal fluctuates, which satisfy the motion requirements. however, the position, the accelerate and the velocity of joint 2, 4, 5, 6 of the manipulator varied with time irregularly with high efficiency during the simulation time t = 4. 7197s ~ 5s, which would make the joint uncontrollable and result in the vibration of the manipulator system, hence the kinematic performance of manipulator should be improved

    逆運動學模擬結果表明,關節1 、 3 、 7速度最小范數解、位置與加速度均滿足運動要求,無異常波動現象,能夠實現控制;而關節2 、 4 、 5 、 6速度在模擬時間t = [ 4 . 7197s , 5s ]時速度、位置和加速度出現異常振蕩,關節運動失控,從而引起系統振動,其運動性能需進一步改進。
  15. Compared with the results of the other objective functions such as minimum input joint torques and minimum input joint angular velocity, the power consumption can be decreased and the kinematical and dynamical performances will be better by dynamic programming when taking the minimum joint input power as the objective function

    與採用輸入關節力矩最小和輸入關節速度最小為目標時的動力規劃結果相比,以關節輸入功率最小為規劃目標進行動力規劃時,可降低系統的能耗,同時系統的運動學和動力學特性較好。
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