查询词典 velocity

Based on the item of national high technology development project, the thesis studies the reasonable construction pattern of the tunnel portal, incidence of the micro-pressure wave and the the effect of bell-mouthed hood, lacunaris hood and expansile hood on alleviating the micro-pressure wave in the situations of single line and double line, obtains the relationship between the max micro-pressure wave and the velocity of the train as well as the relationship between the max micro-pressure wave and distance of measuring point at the velocity of 100km/h-550km/h, compares the different alleviative effect of the three different hood to max micro-pressure wave and finally proposes the reasonable construction pattern of the tunnel portal.

本文针对国家高技术研究发展计划(863计划)课题"磁浮交通沪杭线越黄浦江隧道的工程技术问题研究"，在单洞单线和单洞双线两种工况下，对隧道洞口的合理结构形式和影响范围，以及洞口喇叭形入口缓冲段、多孔壁入口缓冲段以及隧道出口膨胀室对减缓微压波的作用进行了研究，得到了磁浮列车速度在100km/h～550km/h时隧道出口微压波最大值与速度的关系以及微压波最大值与测点距离的关系，比较了三种不同形式缓冲结构对微压波最大值的减缓效果，提出了隧道洞口的合理结构形式。

Firstly, the natural frequencies and normal mode shapes of the fluid-conveying pipe with zero fluid velocity (i.e. U=0) were determined with the transfer matrix method. Next, these natural frequencies and normal mode shapes were used to derive the equation of motion for the fluid-conveying pipe with fluid velocity U.neq.0 by using the expansion theorem. Finally, the free and forced vibration responses of the pipe with flowing fluid were obtained by means of the Jacobi method and the Newmark direct integration method.

首先吾人使用转移矩阵法来求取一流速等於零(即U=0)、跨距数为N之流体输送管的自然频率及其所对应之正规化振态，然后利用振态重叠法原理来推导流速不等於零(即U.neq.0)时，整个流体输送管在外力作用下的运动方程式，最后再以Jacobi法及Newmark直接积分法来计算该水平流体输送管的自然频率及强迫振动反应。

Based on the improvement of exponential map, a novel motion parameterization method called Dual Exponential Map which can depict translation and rotation, linear velocity and angular velocity simultaneously was proposed.

对指数映射方法进行改进，提出一种双指数映射运动参数化方法，用于同时描述关节模型的平移与旋转、线速度与角速度。

A critical velocity was set in every iteration and the value of the critical velocity decreased according to exponential series in every iteration.

其方法是，设置一个随迭代的进行按指数级数减小的临界速度。

Methods and Materials:Sixteen healthy young college students without requiring medical service for lower limb due to injury in past 6 months accept 8 weeks plyometric exercise training. Using nerve conduction velocity test, surface electromyography, isometric dynamometer, electrogoniometer and ultrasonography to detect the change of (1)muscle activation level.(2)number of α-motorneuron.(3)nerve conduction velocity. And the mechanical properties of muscle-tendon complex are including (1)fascicle length.(2)fascicle angle.(3)fascicle curvature in muscle(4)muscle composition and (1)stiffness (2)hysterisis in tendon and electromechanical delay are also analysis.

材料与方法：16位下肢在六个月内没有因为受伤而接受任何医疗协助的，接受8周增强式训练前后，接受使用神经传导检查，表面肌电图，等长肌力测力仪，电子量角器以及高频影像超音波等工具之量测，以了解肌肉活性改变包括(1)肌肉适应情形(2)神经元的改变(3)神经传导速率的变化以及肌肉肌腱复合体的机械特性，包括肌肉(1)肌束长度(2)肌束与深层腱鞘的角度(3)肌束弯曲度(4)肌肉组成，以及肌腱腱鞘复合体的(1)刚性与(2)迟滞现象以及机电传导延迟时间。

The influence of magnetic field intensity on bed structure, pressure drop, minimum fluidization velocity, transition velocity, and liquid holdup were investigated.

试验结果表明，固含率轴向分布基本均匀，径向为"扁-陡曲线"分布。固含率随磁场强度和颗粒尺寸的增大而增大，随液体粘度和空塔液速的增大而减小。

The final launched velocity is accelerated to 24.991m/s in three steps. A velocity curve is gained by this method and it is consistent with the simulated result.

经实际测量得到了一条经3级加速后的速度曲线，与仿真结果相一致，发射体最后速度达

How to reduce the energy consume so that the quality of the interceptor would be reduced and enhanced the final velocity and average velocity are the key technology of the system scheme for LRADI. Aimed at the character of the LRADI, analysis and study the questions of adoption"interval time can be changed double pulse Solid Rocket Motor"and"double high cast virtual target composition guidance trajectory".

因此如何降低能量的消耗、减轻拦截器的重量，提高末速度和平均速度成为远程反空气动力目标拦截器总体方案的一个重要关键技术，本文针对远程反空气动力目标拦截器的特点，提出和论证了采用"间隔时间可调的双脉冲固体火箭发动机"和"双高抛虚拟目标复合导引飞行弹道"两条新技术途径相关的各种问题。

Based on the prior information obtained by qualitative inversion, the two stages inversion method was put forward. That is, the first stage is that distinguishing the high-quality element and non- high-quality element, and determining the initial iteration value of element sound velocity reasonably. The second stage is that treating differentially the constraint weights of the high-quality element and non- high-quality element, and then quantitatively inversing the final sound velocity distribution. The results of two concrete specimens indicate that the two stages inversion method can inhibit artifacts effectively and has better defect identification effect than normal one stage inversion.

在获取定性反演先验信息的基础上，提出了两阶段反演的方法：第一阶段，区分优质像元和非优质像元，合理确定像元声速的迭代初值；第二阶段，区别对待优质像元和非优质像元的约束权重，定量反演最终的速度分布。2个混凝土试件的模型试验表明，两阶段反演能有效抑制伪像，具有比常规的一阶段反演更好的缺陷识别效果。

A experimental measuring system of double-illuminator method was used in order to study the history of collapse parameters include two dimensional Lagrange velocity and Taylor angle about two type of spherical liners. The final velocity,final Taylor angle and characteristic time of specified particles on inner wall of liners were measured .

文中应用二维拉氏速度光学测量技术，测得两种球缺形药型罩在炸药驱动下内壁给定位置的运动参数变化历程，包括速度和台劳角变化历程，并得出其极限速度、特征加速时间和极限台劳角。

The network space is the typical form of abstract space when it comes to the digital stage.

网络空间是抽象空间数字化阶段的典型形式。

The Notarial System,as the system of judicial certification in our country,is both the constructor and the defender of social credit system,It has its special value and function in the social honesty.

公证制度作为我国司法证明制度，既是社会信用体系的建设者，同时也是社会信用的捍卫者，在诚信中有其特殊的价值和功能。