化学反射

There are two types of black materials: one kind of them absorbs visible light through electron transition to form black, such as nigrosine, anthraquinone black, and iron oxide black, the other kind such as carbon black reflects and absorbs visible light several times with its superficial porous effect to form black.

现有黑色材料主要有两大类：一类是通过化学物质的外层电子吸收可见光跃迁来形成黑色，如苯胺黑、蒽醌黑、铁黑等；另一类则是利用材料表面的多孔结构，对光进行多次反射和吸收，形成黑色，如炭黑。

Four chemically elementary classes of glass, clear, tinted, reflective and mirror glass were used for this study.

玻璃就其化学成份的不同可以分成四大类：明板玻璃、色板玻璃、反射玻璃与镜板玻璃。

Acephala were collected by near infrared reflectance spectroscopy and contents of seed oil and meal protein of 250 accessions selected from 807 accessions were determined by classical chemical methods.

应用近红外反射光谱技术采集807份羽衣甘蓝种子光谱数据，然后挑选250份材料，用经典化学方法测试种子油含量和饼粕蛋白质含量。

These special chemicals are usually contained some ammonia, alcohol and inorganic components damaged by chemicals, resulting in the loss of real time display of the optical transmittance or Catadioptric have led to a result of color distortion, or anti-interference, to reduce the role of anti-static, this is not only detrimental to the eyes, the impact of image display quality, and the protective function of the original is damaged, color and safety will be adversely affected, consumers may not be carelessness.

而这些特殊的化学物质通常会被一些含有氨、酒精及无机盐类成分的化学品所破坏，从而导致显示器慢慢的失去真正的光学透光率，或产生因折反射导致的色彩失真，或者防干扰、防静电的作用减低，这样不仅不利于眼睛，影响图像的显示画质，而且原有的防护功能也被破坏，色泽度及安全性都会大打折扣，消费者不得不慎。

The results obtained suggest that PTK within the NTS regulates the peripheral chemoreflex control of respiration and that this regulation of PTK may be mediated through the phosphorylation of AMPA receptors in NTS neurons.

结果提示，NTS处的蛋白酪氨酸激酶对外周化学感受性反射具有一定的调节作用，并且NTS处磷酸化修饰AMPA受体可能是PTK发挥这种调节作用的途径之一。

In 15 anesthetized open-chest dogs, the responses of some regional vascular beds were examined by constant flow perfusion method during the 5-HT-induced aortic hypertensive chemoreflex.

在15只麻醉开胸犬中，用在体器官恒流灌注法研究了骨胳肌、皮肤、肾和心脏的血管在5-HT诱发的主动脉区化学感受性升血压反射中的反应，同时还观察了5-HT对这些器官血管的直接效应。

The ventilatory responses of peripheral chemoreflex following 0.1 m l microinjection within the NTS of either PTK inhibitor genistein(10 mol/L), AMPA glutamate receptor inhibitor CNQX (10 mol/L),or inactive PTK inhibitor daidzein (10 mol/L) were recorded.

在孤束核处分别微量注射蛋白酪氨酸激酶的抑制剂genistein和其非活动性抑制剂daidzein 以及 AMPA受体阻断剂CNQX，观察这些药物对外周化学感受性反射的影响。

ABSTRACT Objective To apply near infrared diffuse reflectance spectrophotometry and chemometrics for the quantitative analysis of azithromycin dispersible tablets.

目的 应用近红外漫反射技术和化学计量学的方法对阿奇霉素分散片进行定量分析。

To obtain precise result, itis necessary, in the aspect of hardware, to set up one stable optics system with highSNR, only if so, can we do the measurement with the steady NIR. To do so, we designthe optics system using AOTF, and take some measures to increase the light energyand the system SNR, which includes the three layers structure of the light chamber,the equipments to cover the useless light, polarizing to reduce the influence of 0 gradelight and focalize the light with lens. Apart from the hardware aspect, according to theexperiments, we can see that the different temperatures between at setting up themodels and at predicting the results will affect the prediction results in a way, and theaffection extent will be increased along with the increase of the temperaturedifference. Moreover, the light energy that can be detected will be different with thecontact pressure, and the match of the refractive indexes between the tissue and thesurroundings will enhance the light transmission depth, which will take moreinformation of the tissue. So, during the measurement, we should ensure the sametemperature between measuring and predicting, the same contact pressure at everymeasurement and the match of the indexes between the tissue and the surroundings aspossible as we can.

要提高测量精度，从硬件方面就必须有一个稳定的、信噪比较高的分光光路系统，以此得到稳定的近红外光来进行无创检测，针对这个目的，我们设计了 AOTF 分光光路系统，并在系统中采用一定的措施如三层灯室结构、遮光筒以减小杂散光、起偏和检偏来减小 0 级光影响、透镜汇聚等等来提高出射光的能量和系统的信噪比；从其他影响因素方面，通过实验，我们得到不同的建模温度对于预测结果有一定的影响，且影响随着温度的差值越大而越大，另外散反射光谱的能量也随着接触压力的不同而不同，组织的折射率与环境匹配将加大光的入射深度，从而能携带更多的组织信息，所以在测量时我们尽可能保证同一温度、保证同一接触压力以及利用物理或者化学的方法使组织与环境折射率匹配等。

The chemical etching method wa applied to form surface texture of multicrystalline silicon in order to reduce the reflectance of the surface.

为了降低光在多晶硅表面的反射，采用化学腐蚀法在其表面制备了绒面。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。