查询词典 emissivity

In the past 20 years, a low emissivity film has been widely used in architecture and automobile industries.

过去20多年，一种低辐射(Low emissivity，Low-E)的薄膜被广泛应用于建筑业和汽车制造业。

2 Using reference emissivity A tape or paint of a known emissivity should be put onto the object.

21.2.1.2 使用引用辐射率磁带或已知的辐射率的漆，应该对对象。

This method corrected the Wien approximate based on the mathematical principle, and calculated the spectral shape using ADE to identify the band which had the maximum and minimum emissivity, then deduced the relationship of each band's emissivity after the correction of Wien approximate and derived the actual emissivity using this relationship and MMD model.

对维恩近似从基本原理上进行修正，利用ADE计算光谱大致形状以确定发射率最大最小的波段，推导出了在修正维恩近似后各个波段发射率的关系，再利用这个关系以及最大最小值差模型计算实际的发射率。

However, the emissivity is affected by many factors, such as roughness. Simulation results for surfaces with different roughnesses are compared. It is found that the effects of roughness on the bidirectional reflectance distribution function and normal emissivity are significant.

在实际应用中，物体的发射率受到很多因素的影响，粗糙度就是其中之一，通过比较不同粗糙表面的计算结果，发现粗糙度对二向反射分布函数和法向发射率的影响不可忽略。

The method takes the following steps:(1)to calculate the distribution of the effective emissivity of the subcavity,(2)to calculate the distribution to subcavity opening of the effective emissivity of the subcavity l and (3)to calculate the integrated emissivity of a multi -celled large-area blackbody.

应用该方法，计算了作者所研制的蜂窝面黑体的积分发射率并对计算结果进行了分析，分析结果表明该方法是切实可行的

On the one hand, The empirical model is remedied to investigate themicrowave emissivity of sea surface under wave breaking. In this model, we havediscussed the effects of spherical bubbles and droplets of whitecaps and difference intemperature between air and sea water on the emissivity of sea surface. Themodel results indicate that the effective seawater emissivity increases with DTBASincrease.

在被动遥感方面提出了一个改进的研究海浪破碎产生白冠时海水有效发射率的模式，讨论了白冠层中主要成分为球形气泡和水滴的情况，并着重分析了海-气温差对海水发射率的影响，研究表明海水发射率随着海-气温差的增大而增大。

Overall, emissivity of both oxidized and unoxidized samples increases with increasing temperature;(2) emissivity of unoxidized sample doesn t change with time. However, emissivity of oxidized sample increases due to the growing oxide layer with time;(3) a stronger effect of alloy composition is evident for oxidized samples.

整体而言，有氧化与无氧化之放射率皆随著加热温度增加而上升；(2)铝合金於开放环境之放射率随加热时间增长而明显上升，但在真空腔体内之铝合金其放射率却不随加热时间增长而改变，因为氧化层会随著时间增加而成长进而造成表面放射率上升；(3)合金成份对放射率的影响在氧化下比无氧化呈现显著的差异。

For the examination of Multispectral radiation thermometry with first-order linear emissivity model:(1) the best MRT examined wavelength range for unoxidized aluminum alloys is from 3 m to 4 m;(2) unoxidized samples provide better temperature prediction than oxidized samples;(3) if the emissivity model can well represent the real emissivity behaviors, the more accurate inferred temperature can be achieved.

应用多光谱辐射测温法搭配一阶线性放射率模组於温度推测：(1)应用於推测无氧化试件表面温度之波段的选择以3 m到4 m的结果最好；(2)应用於推测无氧化试件表面温度的结果比推测有氧化试件表面温度的结果来的好；(3)当放射率模组越能模拟铝合金表面放射率行为，则所推测温度误差将越小。

The results show that the normal total emissivity of T700 carbon fiber and T300 surface desizing carbon fiber are lower than T300 original sample, and the variation of spectral emissivity is in three wavebands, spectral emissivity is in three wavebands, this is related with the microstructure of carbon fiber.

结果表明：T700碳纤维和经过表面除胶后的T300碳纤维样品，其法向总发射率有所降低，光谱发射率基本在三个波段范围内变化，这与碳纤维的微结构有关。

The results show that the extent of loose structure can be changed by different fiber distribution, the normal spectral emissivity and total emissivity of carbon fiber perform by adopting ply yarn process and carbon felt were higher than carbon cloth perform, and the normal spectral emissivity and total emissivity of porous C/C performs reinforced by short-cut fiber were also relatively superior to that reinforced by carbon fiber cloth.

结果表明，不同的纤维排布改变了样品的结构松散程度，多股线排布的碳素纤维预制体及碳毡的法向光谱发射率和法向总发射率均优于碳素纤维布预制体，短切纤维增强碳/碳多孔坯体的法向光谱发射率和法向总发射率优于碳布增强坯体。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。