查询词典 shape target

We mainly refered to the one of those improved algorithms of Gerchberg-Saxton.With the computer simulation and drawing program, the simulated diffraction patterns were gotten in this paper, the results agreed with the anticipated diffraction patterns; in the paper we also design the computer optical elements that can shape the laser beam into a double circle shape,a lamp shape and so on.

同时，本文还用标量理论设计了把高斯光束整形为双圆斑形光束的计算机光学元件，文中主要是参考改进的GS(Gerchberg-Saxton)算法；通过计算机模拟，得到了计算机光学元件表面的相位浮雕图。

Results: The PreCS intersected the cerebral longitudinal fissure in the shape of "Y", and the detection rate of MRI was 8.33%; the PreCS intersected the superior frontal sulcus, the middle frontal sulcus and the inferior frontal sulcus in the shape of inverted "Y", and the detection rates of MRI were 90.00%, 3.33%, and 76.67%, respectively; the PreCS was not only parallel to central sulcus, hut also intersected the CS, and the detection rates of MRI were 83.33% and 16.67%, respectively; the PreCS intersected the lateral fissure in the shape of inclined "Y", and the detection rate of MRI was 80.00%; the PreCS was paralleT to the anterior ascending ramus of lateral fissure, and the detection rate of MM was 98.33%.

结果：大脑中央前沟与大脑纵裂呈&Y&形相交，MRI显示率为8.33%；大脑中央前沟与额上沟、额中沟及额下沟均呈倒&T&形相交，MRT显示率分别为90.00%、3.33%和76.67%；大脑中央前沟与中央沟有近似乎行排列和呈倒&Y&形相交2种情形，MRI显示率分别为90.00%、83.33%和16.67%；大脑中央前沟与中央沟有近似平行排列和呈倒&Y&形相交，MRI显示率为80.00%；大脑中央前沟与外侧裂前升支呈平行排列，MRI显示率为98.33%。

In Canada, Acadian Mining has announced that 1Q2008 lead concentrate output at its Scotia zinc-lead mine was 22% below target at 2,116t, due to lower ore grade than expected and below-target mill recoveries.(lead-in-concentrate output was 1,484t).

在加拿大，Acadian矿业公司宣布旗下Scotia锌铅矿2008年一季度铅精矿产量较目标产量低22％，为2，116吨，因矿石品位较预期下降，工厂回收量低于目标量。

It is suggested that the contributions of the pre-equilibrium fission can be ignored for the projectile with low or medium incoming energy to the target in actinium family, and even with high energy to the target in sub-actinium family.

对锕系核来说，在中低能的情况下，可以忽略预平衡裂变过程的影响；而对Pb等重核来说，即使在激发能比较高的情况下，也可以忽略预平衡裂变的贡献。

In this paper, based on MPEG 2 Test Model 5 (TM5) bit rate control algorithm, there are some improvements proposed:① an intelligent integral action is proposed for improving the control precision of bit rate;② after using DCT AC coefficients to define the measure of macroblock and picture coding difficulty, an improvement on target bits allocation is proposed for the decoded picture quality and conformance including scene change, which can adjust the target bits allocation adaptively by their measure.

针对MPEG－2测试模型5（TM5）比特速率控制算法进行了以下改进：①引入一种智能积分作用，有利于提高比特速率的控制精度；②采用DCT交流系数定义宏块和图象的编码难度测度，然后提出了改进的目标编码量分配策略，即根据编码难度测度自适应调整图象和宏块的目标编码量，有利于提高包括场景变化在内的图象解码质量及其一致性。

After a brief review about the problems of bit rate control for MPEG video coding, two optimizations are proposed based on MPEG-2 Test Model 5 (TM5) algorithm:①An intelligent integral action is introduced for improving the control precision of bit rate;②After using DCT AC coefficients to define the measure of macroblock and picture coding difficulty, an improvement on target bits allocation is proposed for the decoded picture quality and conformance including scene change, which can ajust the target bits allocation adaptively by their measure.

文中首先对MPEG视频编码比特速率的控制问题作了简要回顾，然后针对MPEG-2测试模型5(TM5)算法进行了以下优化：①引入一种智能积分作用，有利于提高比特速率的控制精度；②采用DCT交流系数定义宏块和图象的编码难度测度，然后提出了优化的目标编码量分配策略，即根据编码难度测度自适应调整图象和宏块的目标编码量，这样有利于提高包括场景变化在内的图象解码质量及其一致性。

First of all, based on the aid of AIS (Automatic Identification System), which can give us the target ship's accurate data and will implement in 2002, we study own ship's relative motion to target vessels, define DCPA and its sign, give mathematic model of collision avoidance, produce the optimal opportunity and action taking of collision avoidance, and obtain a graph of action-taking.

论文首先在2002年将要开始实施的船舶自动识别系统所能提供的准确目标船信息的基础上，研究本船相对于目标船的运动，定义DCPA的大小和符号，推导出船舶避碰数学模型，给出船舶最佳避让行动与时机，得出避让行动曲线图，并且明确最佳避让行动时机不是某个点，而是一个时间段。

First, one. analyzes the eigenstates-from reachable sets and seeks the one which the target state belongs to. Then using the Grover iteration to amplify the probability amplitude of the desired eigenstate (the modul square of which is the probability of the corresponding eigenstate that the system will collapse to when it is measured). By measuring, the system will then collapse to the desired eigenstate with a probability of almost unity. Finally, one can use the admissible control to drive the system from the eigenstate to the target state.

该策略的核心思想是对本征态能控的系统，通过分析控制目标态与本征态的关系，寻找给定目标态所属的本征态可达集，然后利用量子非结构化搜索的Grover算法，将任意给定的系统初始态经过一定次数的Grover迭代，放大该本征态所对应的概率幅(概率幅的模方对应测量时波函数塌缩到对应本征态的概率)，然后对迭代后的态进行一次测量操作，使系统以接近1的概率塌缩到所需的本征态(前面分析得到的本征态可达集所对应的本征态)，最后用容许的控制将系统从该本征态控制到期望的目标态。

When the relative velocity between missile and target is high, the change of the LOS will not be kept zero but vibrate. It can result in the system unsteady. A new SMG is designed. It do not request keeping the change of the LOS be zero all the time, but relax restriction advisably and automatically as missile approach target.

针对这一问题，设计了一种新型滑模制导律，其并不要求时时将视线角率控制为零，而是随着弹目标距离的减小，自动适当地放宽对视线角率的约束，从而有效缓解了传统滑模制导带来的强振荡问题。

This paper discusses the theory method calculating surface temperature of ballistic target above aerosphere, and analyses the effect of dimensional orientation of target s flight gesture and sun radiation direction on its surface temperature.

论述了大气层外弹道式目标表面温度的计算方法，对某弹道式目标大气层外飞行过程中当太阳辐射方向改变时其表面温度的变化情况进行了数值计算，分析了目标飞行姿态与太阳辐射方向之间空间方位关系的变化对目标表面温度的影响。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。