查询词典 coefficient of absorption

Cuprous oxide (Cu2O) is a direct band gap semiconductor with optical band gap energy of 2.0 - 2.5eV. It is a non-stoichiometric p-type semiconductor. The attractiveness of cuprous oxide as a photovoltaic materials because of its high absorption coefficient in visible regions, non-toxicity, abundantly available starting material on the earth and low cost producibility.

氧化亚铜为直接能隙P型半导体材料，是属於一种非化学计量比缺陷半导体(non stoichiometric defect semiconductor)，光学能隙值约在2.1-2.5eV之间，具有低制造成本、无毒性、起始材料在自然界中含量丰富等优点，并且在可见光范围内具有相当高的光吸收系数，因此主要的应用可用来制造太阳能电池元件。

The effect of the different active medium′s absorption coefficient and distance between the diode and the laser rod on the pump power distribution in the laser rod is studied.

比较了介质的吸收系数和二极管到激光棒距离的不同给抽运的均匀性带来的差异。

Salt absorption, transpiration induced water uptake and the radial reflection coefficient of the root system of arrowleaf saltbush were measured in order to analyze ultrafiltrational characteristics of its root system in relation to salt tolerance of the plant.

对耐盐蔬菜三角叶滨藜在盐胁迫下的蒸腾吸水量、Na吸收和根系径向反射系数进行了测定，分析其根系超滤特性与植物耐盐性的关系。

This indicated that arrowleaf saltbush was able to change the ultrafiltration characteristics of its root system and reduce radial reflection coefficient of the root, thus lowering the risk of higher xylem tension leading to xylem cavitation and able to reduce salt absorption to avoid damage of salt over-accumulation to the plant.

说明三角叶滨藜在盐胁迫下一方面通过改变根系的超滤特性，降低根系径向反射系数来防止木质部拉力过大导致的木质部空化的危险，另一方面通过减少对盐分的吸收来避免盐分过多积累对植株的伤害。

Regarding the extinction of every kind of scatter, the results of the sum of scattering and absorption coefficient, and that from forward scattering theory are compared and discussed.

关于各类散射体的衰减，本文比较了散射系数和吸收系数之和，与前向散射定理的结果，并对前向定理的适用性进行了讨论。

The paper studies the theories of elliptical crystal analyzer of spectrograph,analyses the integrated reflectivity and absorption coefficient.

探讨了椭圆弯晶谱仪理论原理，分析了积分反射率和质量吸收系数。

The sound absorption coefficient of the material is tested by standing wave tube method.

采用驻波管法测试材料的吸声系数。

Influence of absorption coefficient on stimulated Brillouin scattering .

吸收系数影响受激布里渊散射的实验研究。

We made the light absorption coefficient measurement system with Nuclepore filter which were used to collected aerosol particles. The system has one laser beam which is split into two laser beam, one being information light which transfer through glass pipe, the other being reference light which transfer directly through atmosphere. so the measurement system could well eliminate the effect of all kinds of measurement errors which were caused by optical ullage and circuit noises and power fluction.

本测量系统利用核孔过滤膜采集气溶胶粒子，测量系统的光路由同一光束分为两路光组成，一路为信号光，通过光管传输，另一路为参考光，通过信号光和参考光相比很好地消除了测量系统中由于光管损耗、电路放大倍数的差异及光功率起伏等因素所引入的误差对吸收系数测量的影响。

In this thesis the optical index, absorption coefficient and thickness of yttria and mixed yttria-silica thin films could be determined by multiparameters optical transmission curve fitting method.

本文通过对Y〓O〓及一系列Y〓O〓/SiO〓混合膜光学透过率的测量，应用计算机数据分析法，可拟合求得薄膜的光学折射率n，吸收系数α及厚度t。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。