查询词典 illuminance

Employing capillary-pipette washing method,the unialgal strain and axenic strain of Microcystis aeruginosa from Songhua Lake were isolated and purified,and effects of temperature,illuminance,nitrogen,phosphorus,and iron on their growth were investigated.

用毛细滴管洗净法从松花湖分离纯化出铜绿微囊藻的单藻株和无菌株，研究了温度、照度、N、P、Fe各种因素对单藻株和无菌株生长的影响。

Keywords: LED, luminance flux, luminance intensity, luminance, illuminance, goniometric

条件，给出LED 实际测量的定义和条件，分析LED 本身会带来的测量误差。

By deducing the calculation formula of luminaire efficiency and illuminance on working face, and analyzing a case of lighting, the paper can help lighting designers design efficient and excellent lumination by aptly using luminous intensity distribution curve.

结果 推导出利用配光曲线计算灯具效率和工作面照度的近似公式。结论灯具的配光曲线能够反映出灯具的许多重要特性，配光曲线在照明计算中提供又一便捷工具，正确利用灯具的配光曲线，对建筑照明设计具有重要的指导作用。

A comparison is made between total integrated and spectroradiometric methods of measuring illuminance.

一导言 用不同的方法测量同～个量，常常被用来检验测量方法中是否存在系统误差。

In this paper, the noise sources of the EBCCD imaging system have been analyzed and a SNR model has been established. It shows that the SNR of output image is related not only to the input illuminance on the cathode but also to the spatial frequency of the input image. This has been proved by a series of experiment. Unperfectness of the detecting equation has been pointed out in this paper.

分析了电子轰击电荷耦合器件微光成像系统的噪声源，建立了系统的信噪比模型，指出了在微光成像系统本身的增益和量子效率等性能确定的条件下，成像系统输出图像信噪比不仅仅与输入面照度有关，还与输入图像的空间频率有关，并通过实验得到了证明，指出了经典的图像探测方程的不完善之处。

Finaly many experiments are completed in the lab in diffrient conditions , which contains illuminance of crack 、 contrast of image 、 distance of shotting and focal length, to review the accuracy of the new system and to analys the rule of th effection of the accuracy .

在论文的后阶段，设计了实验室中进行的两个层次的考核和标定试验，并对应用中必然遇到的物面光照度、图像对比度、测量距离和焦距的改变，对试验样本测量精度的规律作出了初步分析，为新方法的进一步完善提供了有价值的工作基础。

The occurrence of accidents under different natural conditions was analyzed. The main causes of traffic accidents included low friction coefficient of road surface due to deficient illuminance, low visibility and accumulated mass dust and exhaust gas, and imperfect safety measures.

通过对不同自然条件下交通事故的形成过程进行分析，认为洞内照明不足、能见度低、大量尘埃和废气凝聚造成路面摩擦系数低、安全设施不完备是导致隧道交通事故的主要原因。

This two species of Gloiopeltis could mature and release spores at illuminance 2 500~8 500 lx. For no nutrient addition to the stocking water the two species of Gloiopeltis could mature and release spores, while nutrient addition too high (80 mg·L-1 NaNO3 and 8 mg·L-1 KH2PO4) it was not good for the mature and spores release of this two species alga.

结果表明，在水温10~20℃培养条件下，海萝能成熟放散孢子；在水温12~24℃时，鹿角海萝能成熟放散孢子；在光照2 500~8 500 lx的范围内，2种海萝均能成熟放散孢子；培养海水中不添加营养盐对这2种海萝的成熟没有影响，培养液的浓度高达硝酸钠80 mg·L-1、磷酸二氢钾8 mg·L-1时反而不利于藻体的成熟及孢子放散附着。

In order to adapt the light abrupt variation, we use a kind of variationdetection method to check the illuminance variation. Then carry on reclassification ofthe results of MOGs method with gradient information, avoiding a great deal ofbackground misclassified as foreground.

为适应光照变化提出一种变化检测方法，当检测到光照突变时，用梯度信息对混合高斯模型的分割结果进行校正，以避免大量背景误判为前景。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。