design of a light intensity fuzzy controller on the environment of hatching fowl

distribution analysis of intensity of illuminations for point lamp in illumination systems

照明系统中点光源的光照度分布分析

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the design of a simply light-intensity detection circuit

一种简易光照度检测电路的设计

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variation of temperature and illumination in different-layer plastic covered tunnel greenhouse

不同覆盖层次塑料大棚内温度和光照度的变化

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when light intensity, was below 500 lx, no growth was observed. in mixotrophic culture, the effect of light intensity on the growth was not as significant as in the photoautotrophic culture. the growth was almost unaffected at light intensities between 2000 and 4000 lx.

如果光照度低于500lx，将观察不到其生长.在混合培养中，光照度对螺旋藻的影响不及在光合自养中显著.在2000至4000l x光照度范围内，螺旋藻的生长几乎不受影响。

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the study results showed that: 1) the annual change curve of light, surface temperature, soil humidity, atmospheric temperature and atmospheric humidity were similar to that of the control ( bare land);

结果表明：（1）植物群落内的光照度、地表（0cm）温度、表层（-5.0cm）土壤温度、空气温度、空气湿度的日变化曲线与对照（裸地）日变化曲线相似。

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using the separate closed chamber method, the experiment determined the diurnal change of n2o flux from potted soybean plants. the experiment also measured the diurnal changes of photosynthesis rate and stomatal conductance of the potted plants and light density.

采用分隔式封闭箱法，测定盆栽大豆植株氧化亚氮（N2O）通量以及光照度、光合速率和气孔导度的日变化。

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this design used the fpga ( general programmable interface) chip to control the cmos sensor's electronic shutter, so the receiving illumination of cmos sensor was controlled, the aim of adjusting light automatically was reached.

利用FPGA控制CMOS传感器的电子快门，以此来控制其光照度，达到自动调光的目的。

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this thesis analyzes a number of key technologies of the white led communication system, more in-depth study on the performance of commercial white led light source, including led volt-ampere characteristic, the characteristics of the illumination and modulation bandwidth characteristics.

本文在分析了白光LED通信系统的若干关键技术基础上，对商用白光LED的光源性能进行了较为深入的研究，内容包括LED的伏安特性、光照度特性和调制带宽特性。

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the main two aspects of led illumination system, intensity and illuminance, are researched in this thesis by the support of fujian institute of optical technology and shanghai xinlu corporation. the capacity and efficiency analysis of energy-saving lamp and illuminance

围绕非成像光学系统的两大核心问题，即光强和光照度，开展LED照明光学系统的研究。节能灯及照明的能效分析

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at 15:00, n2o release from soybean plants rose to the second peak, while light density and photosynthesis rate decreased sharply.

在15：00时，植株N2O的释放达到第二个高峰，但光照度和光合速率却处于快速下降期。结果表明：植物N2O的释放不仅与光合作用的光反应有关，而且也与暗反应有关。

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it can imitate all kinds of climate circumstances, accurately control the indoor temperature, moisture, sunlight, co_2 according to the requirements, to achieve all kinds of climates.

它能模拟自然界的各种气象条件，按照实验要求精确控制室内的温度、湿度、光照度以及CO2等指标，从而复现某种气候环境。

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at last, illuminance distribution of led arrays was researched, and a more appropriate space between leds was obtained, with advantages of less leds and getting a more appropriate illumination.

最后，对阵列LED的光照度分布进行了研究，得出LED之间比较合适的间距，这样，不仅可以节省LED的数量还可以得到比较合适的光照。

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a kind of measurable control system which can control the temperature, humidity illumination and the co_2 density of the agriculture planting greenhouse is designed.

设计了一套能实时控制农业种植温室内温度、湿度、光照度及CO2浓度等参量的测控系统。

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responses of tobacco leaf photosynthetic parameters to illuminance under attenuated uv-b radiation

UV-B滤减处理下烟草光合作用参数对光照度的响应

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n_2 o emission from soybean in relation to light density and photosynthesis

大豆N2O释放与光照度和光合作用的关系

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design of digital light-intensity indicator based on bp neural network

基于BP神经网络的数字式光照度计设计

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studies of illuminance distribution of led arrays for road illumination

基于道路照明的LED阵列光照度分布研究

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finally, the bp neural network is used to fit data between a/ d sampling data values and standards of illuminance.

最后，用BP神经网络完成了A／D采样数据和标准光照度值之间的数据拟合。

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design of led illumination system and research of illuminance distribution of led arrays

LED照明光学系统的设计及其阵列光照度分布研究

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family h-01 was not very sensitive to changes of light intensity. and family j-10 had been impacted smaller by its intercellular co2 concentration.

H-01对光照强度变化不是很敏感，J-10受胞间CO2浓度影响较小。

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