查询词典 optical character reader

Correlation between spin angular momentum s and background angular momentums of planets;2. In the paper the principle of optical rotation due to the transfer of spin angular momentum from light to particles was discussed by analyzing the interaction between the beam of light and birefringent crystal particles, and then an optical tweezers was formed on nanometer optical tweezers system with a linearly polarized light beam (He-Ne laser 633 nm, 10 mW).

从理论上分析了偏振光束与双折射晶体粒子的相互作用过程，讨论了由于光束自旋角动量向晶体粒子的传递所导致的光致旋转效应的原理，并在纳米光镊装置上利用线偏振He Ne激光器(633 nm，10 mW)形成了光镊光阱，利用1/4波片来改变光镊光束的偏振状态，在不同的椭圆偏振状态下实现了直径约为几微米的CaCO3 晶体微粒的捕获和光致转动。

It is a promising approach to achieving high-speed all-optical signal processing based on the combination of semiconductor optical amplifier and optical bandpass filter.

将半导体光放大器和滤波器组合使用是实现高速全光信号处理的有效途径。

Subwavelength binary optical elements, because of the special property traditional optical elements do not possess, expands the applied field of binary optical elements.

亚波长结构的二元光学器件，由于具有一些传统光学元件所不具备的特殊性质，因而扩展了二元光学器件的应用领域。

According to the principle of optical bistability, the optical bistable characteristics of intensity tuning for two kind of optical fiber component were investigated.

根据光学双稳的基本原理，分别研究了两种光纤器件的强度调谐型双稳特性。

Based on the server-based optical network architecture, the dual fiber link and IP calking for Optical Burst Switching are proposed to abate the restriction of optical devices.

由此提出了双光纤链路与IP插空联合的光突发交换解决方案，以缓解光子器件瓶颈的限制。

To ameliorate the field of view of Cassegrain optical system,a diffractive optical element is first successfully introduced to the Cassegrain optical system and the design scheme is provided in this paper.

为了改善卡赛格林光学系统的视场，首次将衍射透镜成功地引入大视场卡赛格林光学系统的设计中并给出了设计方案。

The designed method of optical imaging system and optical scanner have been described. This optical system consists of two aspherical mirrors i.e. Cassegrain system, the designed datas have been given.

描述了光学成像系统和光学扫描系统的设计方法，光学系统是由两个非球面反射镜所组成，并给出了光学系统设计的各种数据。

Focal length is one of the most important optical characteristic parameter of optical lenses and optical instruments.

焦距是光学透镜和光学仪器的重要光学特性参数。

Article 17 The disposal of the optical disk replication production equipment of an optical disk replication entity closed down upon investigation and punishment and the confiscated optical disk replication production equipment shall be subject to the orientation examination and approval of the local provincial press and publication administrative department within its jurisdiction.

第十七条被查处关闭光盘复制单位和被查缴的光盘复制生产设备的处理，由所在地省级新闻出版行政部门在本辖区内定向审批。

Experimental results show the recognition rate of the method is 95%for a known expresser and 72% for a novel expresser. Aiming at the shortcomings of optical flow technique,two improved optical flow algorithms are presented.One way is to introduce forward and backword constraint eqution and Hessian matrix of optical flow equation is computed.The well- posedness of each point of local neighbourhood is examined and the weight of Lucas-Kanade's method is defined as the reciprocal of the conditioning number of its Hessian Matrix.

3针对传统光流法的缺点，分别提出了两种不同的改进方法：其一为引入前向-后向光流方程，计算其Hessian矩阵，把Hessian矩阵条件数的倒数作为Lucas-Kanade光流法的加权阵，可有效消除局部邻域中不可靠约束点，同时提高基本约束方程解的稳定性；其二为针对传统光流法只适用于刚体运动的特点，在扩展约束光流方程的基础上引入了div-curl样条函数作为扩展光流约束方程的附加约束条件，给出了一阶和二阶div-curl样条约束下光流的数值解。

This immediately brings us to the next part of this article: creating an output "replace function".

下面进入文章的第二部分：建立一个"缓存处理函数"。

He was elected as an International Ornithological Committee member in 2002 during the 24th IOC held in Beijing.

现为中国鸟类学会理事和WPA 专家组成员。2002年被推选为国际鸟类委员会委员。