光

Based on recent based on precomputed radiance transfer techniques, this paper proposes a novel method for real-time editing object material under complex environment lighting. First, we precompute the visibility for each vertex as a precomputation stage; Next, at rendering stage, we on-the-fly compute bidirectional reflectance distribution function. Finally, we render the object material by looking up visibility of each vertex.

为了在环境光下对模型表面的材质进行实时编辑，提出一种基于预计算辐射传输的算法：首先预计算环境光相对于模型表面每一个顶点的可见性；然后在绘制时实时计算物体表面的双向反射分布函数；最后通过查找环境光相对于模型表面每一个顶点的可见性，快速绘制出物体表面材质。

In addition, some parameters evaluating concentrating performance of concentrator are calculated, which conclude optical efficiency, geometric concentrating ratio, energy concentrating ratio and the relative percent of greatest disagreement of the flux density.

另外，计算了评价聚光系统性能的一些参数，包括光学效率、几何聚光比、能量聚光比和接收器上能流密度最大不一致性的相对百分比。

The effect of the finite extinction ratio on optical single sideband transmission system is also considered in detail.

对一种光单边带传输系统用MATLAB进行了仿真，结果表明：在完全消光条件下，10Gb/s单边带信号在常规单模光纤传输可达140 km，而双边带仅为70 km；消光比对双边带传输和单边带传输的影响是不一样的。

The rotary connection can be carried out in free space and hi-direction transmission of optical signal can be performed. Through analyzing the design principle of the optical structure and optical path calculation, it is found that when the ratio between the focal lengths for two lens is 20~50 and off-axis distance is in the range of 4~10mm, the interference will not be occurred between two optical channels and signal transmission can be lasted.

在自由空间可以实现旋转连接并实现光信号的双向传输，通过分析该光学结构设计原理和光路计算，发现每组透镜中两个透镜焦距之比为20-50，离轴距离为4-10mm范围时，才能保证光通道之间不发生干扰且信号持续传输。

Additionally, morphological structure and properties of the TiO_2 prepared by using the conventional heating and microwave dielectric heating were also compared detailedly. Acetaldehyde was chosen as a model reactant to valuate the performance of the samples.

通过自行设计的微波-光催化反应器，在功率100~170 mW、频率36 GHz 的微波和紫外光同时存在下研究了TiO_2对乙醛的光催化氧化性能，并与单纯紫外光存在下的光催化过程进行了比较。

The 10Gb/s OOK optical payload and the 2.5Gb/s OFDM optical label were produced by intensity modulation of two continuous waves with different wavelength, respectively.

利用两个不同波长的光载波分别经过强度调制，产生了10Gb/sOOK光载荷和2.5Gb/sOFDM光标记。

The key difference between hot cathode glow discharge and conventional cold cathode glow discharge is that the cathode is in a hot state with the temperature about 700～1600℃ in a hot cathode glow discharge.

热阴极直流辉光放电区别于常规冷阴极辉光放电的关键之处在于，在辉光放电过程中，阴极处于700-1600℃的&热&状态，并且放电电流大，工作气压高。

The diamond film deposition experiments with hot cathode glow discharge PCVD shows that the cathode temperature has no apparent influence on deposition rate and film quality. With the increase of gas pressure, the gas density, electron temperature, gas dissociation rate in the plasma region change differently.

在热阴极辉光放电PCVD沉积金刚石膜中，适当的阴极温度是保证大电流、高气压辉光放电稳定工作的必要条件，它影响着辉光放电阴极位降区的放电性质，但对金刚石膜的沉积速率和膜品质基本没有影响。

Hot cathode glow discharge chemical vapor deposition is a new method to deposit high quality diamond films with high deposition rate.

中文题名热阴极辉光放电及其等离子体化学气相沉积金刚石膜研究副题名外文题名 Study of hot cathode glow discharge and its plasma chemical vapor deposition of diamond films 论文作者白亦真导师金曾孙教授学科专业凝聚态物理研究领域\研究方向学位级别博士学位授予单位吉林大学学位授予日期2001 论文页码总数139，10页关键词金刚石膜薄膜制备热阴极辉光放电等离子体化学气相沉积馆藏号BSLW /2003 /TB43 /1 热阴极辉光放电等离子体化学气相沉积是我们建立的快速沉积高品质金刚石膜的新方法。

We show that the atomic c.m motion dont affect the atomic spectrum phase sensitivity when there is no correlation between atomic cm. motion and the field. With the increase of the average energy for atomic cm. motion, the peaks of the emission spectrum move towards each other, their heights change according to the state of the field and atomic motion. While there is correlation between atomic c.m.

当原子质心运动与光场无关联时，原子质心运动不影响原子发射谱对原子偶极矩和光场相对相位的敏感性，随着原子质心运动平均能量的增加，原子发射谱峰间的相对距离变小，峰高的变化与原子质心运动和光场所处的状态有关。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了