查询词典 irradiance

The results show that the tube pitch is the key factor that affected the size of uniform heated area, and the tubes arrangement has not notable effect on irradiance uniformity; When L/R is increased, Lobj at which the irradiation distribution is uniformly on the heated object surface is increased.

通过计算得出定向反射管间距是影响均匀加热面积大小的主要因素，管束布置方式对辐照度均匀性影响较小；随管长与半径比增加，物体表面辐照度均匀时，对应的加热距离增加。

In order to clarify the mechanisms of alleviating injury by cold acclimation in vegetative stage, two winter barley cultivars with different cold tolerance in vegetative stage were used to study the effect of irradiance on leaf H_2O_2 accumulation and ROS scavenging systems after removal of unlethal freezing stress. Moreover, the functions of photosynthetic apparatus in leaves were measured by chlorophyll fluorescence during recovery.

以苗期低温敏感性不同的两个大麦品种为材料，探讨了冷驯化和光强对大麦非致死冻害处理后恢复过程中叶片H_2O_2积累和ROS清除系统的影响，并利用叶绿素荧光技术研究恢复过程中光合器官功能的变化。

By the measurements of inlet temperature, outlet temperature, ambient temperature and solar irradiance on aperture plane per unit area the characteristic parameters of the transfer function can be obtained.

在改进后的模型中，将集热器看作是一个系统，集热器的出口温度是系统的输出，其余变量：集热器进口温度、环境空气温度和落在集热器采光面上的太阳辐照度看作是系统的输入。

In the model the collector is regard as a system, the outlet temperature is the system output, the other variables: the inlet temperature, the ambient temperature and the solar irradiance on aperture plane per unit area are the system inputs.

中文摘要本文以U型管全玻璃真空管太阳集热器为研究对象，在分析太阳集热器传热机理和管内流体温度分布情况的基础上，根据能量平衡和传递函数理论，对侯宏娟的集热器动态测试方法的数学模型进行改进。

In order to obtain infrared spectral radiance distribution of some infrared sources, such as spectral radiant flux density, spectral radiant intensity, spectral radiance and spectral irradiance, the instrument response function under different conditions must be known.

在应用红外发射光谱来获得某些红外源的绝对光谱能量数据，如辐射源光谱辐射通量密度、辐射源光谱辐射强度、辐射源光谱辐射亮度及光谱辐射照度等时，需要得知不同条件下的仪器响应函数。

In the case of short light pulses irradiance, photovoltaic effect has no effect on the writing and erasing photorefractive gratings in the LiNbO3 crystal.

因此，在短脉冲光入射光折变晶体材料情况下，考虑光生伏打效应与不考虑光伏效应，对短脉冲光在光折变LiNbO3晶体中写入和擦除光栅基本没有影响。

The expression of space-charge field is given out in the paper with two time constants τpa and τpb. When considering and not considering the photovoltaic effect, the diagrams of the two time constants as a function of irradiance in units of 1/ are the same.

理论研究表明，空间电荷场的形成和擦除与两个时间参数有关，在考虑或者不考虑光生伏打效应两种情况下，这两个参数随擦除光强的变化有基本相同的变化规律，光栅的写入和擦除有相同的结果。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。