吸收

In order to improve wave-absorption properties and wave band of single absorbent,a novel absorbing medium of carbon black doped with nanometer-sized manganese dioxide was prepared.

为了改善单一吸收剂对电磁波的吸收性能并有效拓宽吸收频段，采用纳米二氧化锰掺杂炭黑制备了一种新型的复合吸收剂，并对吸收剂的TEM颗粒形貌，介电特性和微波吸收性能进行了研究。

With the establishmentof the equivalent medium model, RTM-DRE was applied to study radiative transfer intransparent medium with scattering particles. By taking into account of absorption andscatter of particles, absorption of binder and reflection of interface, the apparent spectrumabsorption model of thermal control coatings was developed by RTM-DRE combined withMies theory. Validity, computational error and time of the model were validated andanalyzed. Furthermore, the apparent spectrum absorption characteristics of thermal controlcoatings were studied, and the influences of optical characteristics of binder and particles,volume fraction of particles, particles diameter, characteristics of interface, and incidentangle of irradiance were analyzed.

采用RTM-DRE研究热控涂层内辐射传递，结合Mie氏散射理论，考虑粒子吸收与散射、基料吸收、界面反射等因素影响，建立热控涂层表观光谱吸收率计算模型，验证计算模型的正确性，分析计算模型的计算误差与计算时间；在此基础上，通过计算热控涂层表观光谱吸收率来研究热控涂层表观光谱吸收特性，分析基料与粒子光学特性、粒子体积份额、粒径、界面反射特性、辐射能量入射角等因素的影响，初步研究空间环境因素对热控涂层表观光谱吸收特性的影响，采用系统灵敏度理论定量分析热控涂层表观光谱吸收特性变化对卫星温度的影响。

Zhang through sea view, the fair is facing a new situation :"WTO" to the Chinese foreign capital brought new opportunities and challenges;"15" plan for new goals and requirements for attracting foreign capital, to the strategic readjustment of the economic structure as the main line, the absorption of foreign capital in developing policy guidance, Amendment foreign investment catalog; attracting foreign investment laws and the implementation of the three rules changes, a further relaxation of foreign capital policy.

张循海认为，本届洽谈会面临着新形势："入世"给中国吸收外资带来新机遇和挑战；"十五"计划对吸收外资提出新目标和要求，即要以经济结构战略性调整为主线，制定吸收外资的导向政策，修订外商投资产业指导目录；吸收外资的三个法律和实施细则进行修改，进一步放宽了吸收外资政策。

The results show that the absorbing effect of low-order Higdon absorbing boundary condition is undesirable and relatively strong boundary reflection exists in wave field snapshot and analog recording; the effect of traditional and improved PML absorbing boundary conditions are similar, which can effectively absorb and attenuate the boundary reflections from any angle.

结果表明，低阶Higdon吸收边界条件吸收效果较差，在波场快照和模拟记录中存在较强的边界反射；改进的PML吸收边界条件与传统的PML吸收边界条件效果相当，均能有效地吸收衰减任意角度的边界反射波。

The inhibitive effect of 1, 2-benzenedicarboxylic acid on the absorption of N, P and K increased with its concentration rising. Low concentration of dibutyl phthalate increased the absorption of N, but decreased the absorption of P and K. Its high concentration restrained the absorption of N, P and K, while the low concentration of diphenylamine could stimulate the absorption of N and K, but restrain the absorption of P.

随着邻苯二甲酸浓度的增加，其对番茄幼苗根系吸收N、P、K的抑制作用增强；低浓度的邻苯二甲酸二丁酯可以促进番茄幼苗根系对N的吸收，抑制对P、K的吸收，高浓度时对N、P、K的吸收均起抑制作用；低浓度的二苯胺可以促进番茄幼苗根系对N、K的吸收，抑制对P的吸收。

ReduceMain fractionation tower,s press drop can enhance inlet pressure of compressor.At the condition of compress ratio is invariable,it can improve system pressure、increase NTS of stabilization tower、reduce stabilize gasoline C4 ratio、improve system absorbent ability.Generic design can hardly reach the best NTS of absorber,so adding absorber,NTS can obviously increase effect so absorb. Because adding absorber'NTS can reduce system dependence on other factors,and it can not lead to the increase of the energy,so it is the best economic method of improving absorb operation effect. For desorber,double feed stream is a economical means but it need adding the NTS.

降低主分馏塔的压降，可以提高压缩机的入口压力，在压缩比不变的情况下提高系统压力；增加稳定塔理论板数，可以降低稳定汽油中C4的含量，系统的吸收效果改善；一般的设计和吸收塔的最佳板数相距较大，所以改造吸收塔的理论板数，它对提高吸收效果往往最显著，又因为改善吸收塔的理论板数会降低系统对其它因素的依赖程度，而且改善它并不增加能耗，所以改造它对提高吸收效果又是最经济的手段之一；对于解吸塔来说，双股进料的工艺很有经济效益，但它需要增加理论板数来实现。

Regarding polyurethane varnish as host of the formaldehyde absorbent,mainly aminoacetic aicd , casein, tannins, L - glutamate, DL - a - amino acid, urea, hexamethylenetetramine, lignin and molecule are chosen to serve as formaldehyde absorbent.

以硝基清漆为吸收基质，主要选择了如氨基乙酸、干酪素、鞣质、L-谷氨酸、DL-α氨基丙酸、尿素、六次甲基四胺、木质素、分子筛等作为甲醛吸收剂，涂布于聚氯乙烯胶片上做甲醛吸收测试；根据测试结果，制作的甲醛吸附剂能起到较好的甲醛吸收效果；并探讨了硝基清漆中吸收剂用量的筛选及吸收时间对甲醛消除的影响因素。

Amoung 10 compounds (polyhydroxy substituted N-benzoylserotonin derivatives), compound 4 shows the highest number of ε. The ε of compound 4 is high up to 11.43 × 103㎝-1M-1, which is the 2.84 times of the ε of control group, octyl salicylate. Moreover, compound 4 can absorb all the wavelength if UVB (280 nm - 320 nm), so compound 4 can provide the best protection from UVB. Additionally, this study also discovers that the compound 5 not only can absorb UVB, but also can absorb UVA.

而本研究所合成之多羟基取代N-色洛冬宁苯甲醯胺衍生物（化合物1 ~ 10）莫耳吸收系数最高者为化合物4，其在波长306 nm的莫耳吸收系数达11.43 × 103㎝-1M-1，为对照组水杨酸辛酯的莫耳吸收系数的2.84倍，且化合物4的吸收波长涵遝蒤紖VB波长(280 ~ 320 nm)的范围，故化合物4能提供UVB波长的最佳防护；另外化合物5除了具有UVB波长的吸收外，还具有UVA波长的吸收作用。

The effect of fertilizer application on the growth and development of summer maize and the absorption, distribution and remobilization of Nitrogen, Phosphorus, and Potassium were investigated in field-grown conditions from 1997 to 1998, as well as the response of photosynthesis to eco-physiological factors in the corn canopy caused by different fertilizer amounts were explored.

4.1.1 对土壤速效养分含量的影响 19-224.1.2 对植物养分含量的影响 22-234.1.3 对产量的影响 23-244.2.1 对土壤速效养分含量的影响 24-254.2.2 对植株养分含量的影响 25-264.3.1 氮素吸收动态 26-274.3.2 磷素吸收动态 274.3.3 钾素吸收动态 27-284.3.4 氮磷钾在植株中的分配和转移 28-304.4.1 氮素吸收动态 30-314.4.2 磷素吸收动态 31-324.4.3 钾素吸收动态 324.4.4 氮磷钾在植株中的分配和转移 32-34

First, based on the measurements of absorption cross-section, the absorption characters of the main polluted gases in flue gas were deeply studied, and found that SO_2、 NO、 NO_2、 NH_3 had a character of approximate periods absorption at some wave band, which is a good chance of a new measurement introduced. Secondly, the factors about absorption cross-section of the gases measured, which affect on the measurement precision of DOAS, is studied deeply. The influence of pressure and temperature on absorption cross-section was given special research, and the compensated measures were given to the gases based on the character of the gases. Thirdly, in practical measurement, it must have been satisfied that the monochromator was consisted with the reference spectrum, which was based on absorption cross-section. In order to satisfy the consistency, the technique of reversion in the image was introduced, the reversions of spectrums were realized with wiener filter and noise elimination based on wavelet transform.

首先从吸收截面的测量入手，对烟气中主要的污染气体SO_2、NO、NO_2、NH_3的吸收特性进行详细研究，发现这些气体在局部区域具有准周期吸收特征，这为引入新的测量方法提供了契机；其次，对决定DOAS测量精度的被测气体吸收截面的诸多问题进行了深入研究，重点研究了压力、温度对被测气体吸收截面的影响，并针对被测气体的特征提出了相应的修正措施；再次，在实际测量中，要求所使用的光谱仪必须与以吸收截面为基础的参考光谱相匹配，为了满足匹配这一条件，文中将图像复原技术引入到光谱复原，使用维纳滤波和小波消噪实现了光谱的复原，将复原后的光谱与所使用光谱仪的仪器函数卷积，即可实现；最后，在对DOAS测量原理详细分析的基础上，对传统的最小二乘—差分吸收光谱法进行了详细的阐述，通过实验证实两点：1。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。