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Polishing machine for slab has the polish spindle which is controlled for counterpressure by a coaxial cylinder according to the stone character.

大板的抛光机械有抛光轴可以根据石材的特征通过共轴圆柱控制抛光刀头对大板的压力,来控制抛光的效果。

Based on the structure of a non-tracking internal-concentrator solar PV-thermal tube collector and the absorber design requirements, the optical design for the compound parabolic concentrator with half cylinder absorber is proposed to improve the solar energy efficiency. Matlab software was used for the optimization and simulation of the concentrator curve and shape. The curve equation of concentrator for maximum incidence of light of the collector was obtained; and the installation locations for CPC/half cylinder absorber and the necessary CNC processing parameters were optimized.

针对非跟踪内聚光光电-光热复合管的结构及接收器的设计需求,对管内具有特殊形状的半圆柱接收器的复合抛物面聚光器进行了光学设计,并利用Matlab软件对聚光器曲线和形状进行了优化与数据仿真,得到了光热复合管能够得到最大入射光的聚光器的曲线方程、安装位置以及供数控机床加工所需的参数,给出了不同入射角的光线和光强分布图,提高了太阳能的利用率。

There was a little difference betweenphotosynthesis characteristic of the two varieties,response of Jiamusi to low temperature andpoor light was more sensitive than that of Longjiao No.2 and decreased pronouncedly withdecreasing light.6.EC and MDA of pepper leaves increased under low temperature and poor light,therewere no significant differences between them with decreasing light at 21-23℃/8-10℃,butthey were increased dramatically at 15-20℃/5-6℃.So we can speculate that lowertemperature was the direct reason resulted in cell membrane lipid peroxidation.7.No significant difference of SOD activity was observed under suboptimal temperatureand poor light21-23℃/8-10℃;150μmol·m~(-2·s~(-1),but SOD and POD activity substantiallydeclined with lowering temperature and light as well as treatment time.8.Under suboptimal temperature and lower light,proline accumulated to increaseosmotic regulation capacity and alleviate chilling damage.Soluble carbohydrate of pepper leaves decreased progressively and significantly with decreasing temperature and lightintensity as well as longer treatment time.So we think that synthesis and transport ofphotosynthetic product were inhibited by low temperature and poor light as solublecarbohydrate was important component of photosynthetic product.

两个供试辣椒品种之间的光合特性略有差异,佳木斯对低温弱光的反应比陇椒2号敏感,尤其随光照降低,其光合作用显著降低。6、低温弱光胁迫下,辣椒叶片的相对电导率和丙二醛含量都有不同程度的提高,在偏低温下,随着光照减弱,相对电导率和丙二醛含量差异不显著;在极端低温下,随着光照进一步减弱,相对电导率和丙二醛含量明显提高,随着处理时间延长,同一温度下,随着光照降低,叶片丙二醛含量也显著增加,由此可初步判断,低温是导致细胞膜脂过氧化的直接原因。7、经偏低温较弱光21~23℃/8~10℃、150μmol·m~(-2·s~(-1)处理后,辣椒叶片的超氧化物歧化酶活性变化与对照无显著差异,但随着温度、光强的逐步降低和处理时间的延长,SOD、POD活性显著降低。8、在偏低温较弱光下,辣椒能积累更多的脯氨酸,增强渗透调节,减轻低温冷害。

When the viewpoint is changing quickly, the rendering algorithm ignores some details of the diffuse component, otherwise the scene is rendered more precisely. The Specula highlight is dependent of the viewpoint, it must be processed in real time. We present an algorithm to get rid of the area that does not contain specula highlight quickly and calculate only the area that contains the specula highlight. In order to calculate the specula reflection and refraction component, we presented a new raytracing algorithm based on the environment map transformation. The environment maps are constructed at the sample points of the scene in the preprocessing phase. We add depth information in the environment maps and generate the exact reflection and refraction intensity with the transformation of a few pixels.

对于表面光亮度漫射分量,由于它与视点无关,可以把面片按照光照细节的分布预剖分成层次结构,然后在实时漫游时根据场景变化的快慢决定绘制的细致程度;对于镜面高光分量,由于它与视点有关,必须实时处理,我们提出了一种快速高光裁剪算法,通过简单测试,去除那些不包含高光的区域,只处理包含高光的区域;对于镜面反射分量和折射分量,我们提出了一种基于环境映照变换的快速光线跟踪算法,预先在场景的离散采样点处建立环境映照,然后根据入射点的位置,把邻近采样点处的环境映照上相关象素处的可见点变换过来,求取反射分量和折射分量。

In order to effectively separate the fluorescence produced by algae chlorophyll-a and the scattering light from the excitation light, the interference filter with high block coefficient and narrow band is used as spectral filter.

4为了有效地分离海藻内叶绿素a所产生的荧光和激发光的散射光,采用高阻塞系数的干涉滤光片作光谱滤光。

The structure consists of at least two active regions emitting light with different main wave length, each of them has its own optical waveguide limit layer, two or multiple optical spectrum with different main wave length are mixed together to produce white light; cleavage cavity surface of both sides are plated reflecting film to form photon resonant chamber, light-emitting direction is all from side, this structure is suitable for LED with GaN or ZeSe base or other materials, the substrate is mode of sapphire, SiC or other materials.

本发明是一种直接出射白光的高亮度功率型LED芯片,其结构是:设有至少两个发射不同主波长光的有源区,每一个有源区具有各自的光波导限制层;两种或者多种主波长不同的光谱混合在一起产生白光;其两侧的解理腔面都镀有反射膜,形成光子谐振腔;光出射方向为全侧面出光,此种结构适合GaN基或ZeSe基的LED,或者其它材料的LED;其衬底是蓝宝石衬底,或SiC衬底,或者别的衬底材料。

This is particularly so when the concentrator has to track a moving incident source,for instance,to track sun in concentration solar power application using fixed target focusing heliostats.

譬如,在新型高倍太阳能聚光,塔式光热发电的应用上,定日镜场的每一台定日镜必须跟踪太阳并将太阳光反射到中央高塔的接收器上;为了提高聚光比和接收效率科学家考虑使用聚光式的定日镜,然而由于太阳跟踪的缘故其聚光器则必须在偏轴聚光的条件下使用,这就带来了光斑阔大即偏轴像差的问题。

Fushun rich tourism resources, there are "one city (the county seat and scenic spots around the city), a River, mountain, a town, a groove (trench 5)", the county distribution area Confucian Temple, West Lake,刘光弟tomb, the five House Hill, bell Xiushan,千佛寺, reading easy holes, Xie holds hometown, Bell-Drum, the Minaret, locks Jiang Tower and the following natural stone, arches and many other attractions.

富顺旅游资源丰富,主要有&一城、一江、一山、一镇、一沟&,县城区内分布有文庙、西湖、刘光弟墓、五府山、钟秀山、千佛寺、读易洞、谢持故里、钟鼓楼、文光塔、锁江塔及其下面的天然石佛、牌坊等众多景点。

Because of diffraction and other physical phenomena during mask making, optical lithography and etching under Sub-Wavelength Lithography, the mask patterns are not the same as printed shapes on silicon wafer.

在亚波长光刻下,由于掩模制造、光刻和蚀刻过程中光的衍射及其它物理现象,导致掩模图形和硅片表面实际印刷图形之间不再一致。

According to the self-trapping that takes place in both transversedimensions,we show that an addressing optical switch is possible bychanging the lateral displacement of the beam,that the soliton wavelengthdivision multiplexing devices may be made by using the self-deflection ofspatial solitons,and that soliton devices with two or three controlledparameters are made by using screening-photovoltaic solitons for shortcircuit or closed circuit with an external resistor.

根据光孤子的自陷获仅发生在横向上,由此我们提出:控制横向空间光孤子的方法实现光的快速互连切换光开关;用短路或有外电阻的屏蔽光伏孤子研制具有两种或三种控制参数的孤子器件;用控制空间光孤子的自偏转的方法研制波分复用器。

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