大气汽溶胶复合微粒子群的光学截面及红外发射率光谱的计算

在章[1]的基础上，根据M.L.AdenH和M.Merker的复合微粒子光散射理计算了汽溶胶大气中复合微粒子模型的光学特性，得到了汽溶胶的散射截面、吸收截面和消光截面以及红外发射率光谱，为研究大气红外传输提供了计算方法。     

氧化镁和氧化钇掺杂对纳米氧化铝粉末的影响

本文研究了用均相共沉淀法合成氧化铝陶瓷粉末的同时合成氧化镁、氧化钇等掺杂氧化物,发现在掺杂量不大时,同时合成的掺杂氧化物以填隙固溶体方式固溶于立方γ氧化铝中,并且几乎不影响铝氧键性质、晶格常数和衍射波矢,但掺杂使氧化物细化,比表面增大,用此法合成的粉末聚集比较厉害,在粉末中有晶化颗粒存在．     

Measurement and analysis of soil nitrogen and organic matter content using near-infrared spectroscopy techniques

Near infrared reflectance （N1R） spectroscopy is as a rapid, convenient and simple nondestructive technique useful for quantifying several soil properties. This method was used to estimate nitrogen （N） and organic matter （OM） content in a soil of Zhejiang Province, Hangzhou County. A total of 125 soil samples were taken from the field. Ninety-five samples spectra were used during the calibration and cross validation stage. Thirty samples spectra were used to predict N and OM concentration. NIR spectra of these samples were correlated using partial least square regression. The regression coefficients between measured and predicted values of N and OM was 0.92 and 0.93, and SEP （standard error of prediction） were 3.28 and 0.06, respectively, which showed that NIR method had potential to accurately predict these constituents in this soil. The results showed that NIR spectroscopy could be a good tool for precision farming application.     

The Russian avant-garde painting palette: Documentary and physicochemical codification of organic colorants

In the present article an attempt is made to elucidate the organic colorants commonly encountered in the Russian avant-garde painting palette by a combined art historical, documentary and physicochemical investigation, and to examine the influence of environmental factors on the chromatic profile originally sought by the artist. The overall approach based on written sources is confirmed by measurements on relevant paintings. The documentary research deals with the influences of Orthodox iconography, folkloric art, and occidental modernist tendencies on the Russian avant-garde palette, and studies the effects of contradictory historical processes in the chromatic profile of individual paintings. In the experimental section a series of colorants are investigated concerning the effects of accelerated ageing on experimental painting tables, prepared as watercolor and gouache layers on paper ground. The resulting samples are subjected to colorimetric and spectroscopic measurements, and analogous analytical procedures are applied on samples taken from selected paintings. A systematic comparative study of all data permits evaluation of the materials used in terms of their stability towards extrinsic factors, and proposal of degradation routes in order to assist museum curators and conservators in every concrete case related to the broad spectrum of pigments examined.     

Study of the stability of a series of synthetic colorants applied with styrene-acrylic copolymer, widely used in contemporary paintings, concerning the effects of accelerated ageing

This study examines the materials of a contemporary pictorial artwork, belonging to the Macedonian Museum of Contemporary Art in Thessaloniki (Greece), and needing conservation. The combined use of micro-FTIR and micro-Raman spectroscopy allowed the identification of almost all painting materials. Moreover, the stability of a series of synthetic pigments towards accelerated ageing is investigated in applications using the contemporary binding medium styrene-acrylic copolymer. The pigments in question are: Hansa yellow PY3 and PY74, quinacridone PV19 and PR122, naphthol AS PR112, phthalocyanine green PG7 and blue PB15, dioxazine PV37, van Dyck brown PBk11, ivory black PBk9, and titanium dioxide PW6. The organic pigments were applied alone or mixed with titanium dioxide, in rutile form or as a mixture of rutile/anatase. The experimental swatches were subjected to ageing tests, and subsequently studied as to colour changes by means of colorimetric measurements, and as to the molecular structure differentiations by infrared spectroscopy in reflectance mode. The ageing tests included exposure to high temperature and humidity (90 °C, 60% RH) and to ultraviolet radiation (350 nm, 30 °C and 50% RH, with a substantial temperature increase at 90 °C for 3 days). The greater colour difference is caused by high temperature and humidity, whereas paint layers containing TiO₂, and especially the mixture of the forms rutile/anatase, prove very susceptible to ultraviolet radiation, demonstrating a significant colour difference and extended molecular changes.     

从二语习得的角度浅析可理解性输入对非英语专业大学生英语写作的影响

本文以二语习得与可理解性输入理论为基础,尝试着了解并分析当前大学英语写作教学输入模式及其存在的不足之处,从而在教学过程中试图通过增强可理解性输入来促进学生对输入材料的理解与吸收,最后使其有效地运用于写作之中。     

全面收益报告在我国的适用性探讨

随着经济环境的变化，传统利润表已受到挑战，推行全面收益报告已成为必要。本分析我国推行全面收益报告的必要性以及存在的制约因素，并提出相应的思路。     

"六秒定律”在高校高水平短跑运动训练中的运用

速度是短跑运动的核心,通过对六秒定律训练法和传统30 m跑训练手段在发展运动员的专项速度素质等方面的比较分析得出,六秒跑距更能反映人体在ATP-CP供能系统下的速度能力,在高校高水平短跑运动训练中,引入六秒定律训练法,对提高运动员的加速能力和对全程节奏的控制能力,均有良好的训练效果.     

人体心肺机能第二拐点与某些生理生化指标的关系

通过采用放射免疫分析（ＲＩＡ）和乳酸分析等方法，对２０名优秀运动员的实验研究，探讨人体心肺机能达到第二拐点时，血中环－磷酸腺苷（ｃＡＭＰ）、环磷酸鸟苷（ｃＧＭＰ）、乳酸水平、以及吸氧量（绝对值和相对值）、氧脉博等指标的变化，以初步揭示人体机能第二拐点与某些生理生化指标的关系。实验结果表明：人体机能达第二拐点时，以上指标各参数值均明显高于运动起始时刻的数值（Ｐ＜０．００１）。此刻人体所承受的生理负荷强度已达到无氧阈平均水平以上，机体已由有氧供能为主过渡到无氧代谢占优势。     

19世纪下半期俄国城市化历史进程的特点及原因分析

经过长期发展，到19世纪下半期，俄国城市发展表现出了城市职能转变，绝对发展速度加快，但区域发展不平衡，总体发展迟缓的特征。而工业化水平不高、农奴制残余、东正教伦理、特殊地域条件等是影响俄国城市化进程的重要因素。