中国稀土科技文献索引(2001)

稀土地质与采矿0 0 1　 江西相山火山 侵入杂岩及其包体稀土元素地球化学 ,段　芸等 ,高校地质学校 ,2 0 0 1,7(1) ,92 .0 0 2 　 江西相山铀矿田成矿物来源的Ｎｄ、Ｓｒ、Ｐｂ同位素证据 ,范洪海等 ,高校地质学报 ,2 0 0 1,7(2 ) ,139.0 0 3　 海南岛元古宙变质基底性质和地壳增生的Ｎｄ、Ｐｂ同位素制约 ,许德如等 ,高校地质学报 ,2 0 0 1,7(2 ) ,14 6 0 0 4 　 四川冕宁牦牛坪稀土矿床流体包裹体中发现含锶和轻稀土的子矿物 ,徐九华等 ,自然科学进展 ,2 0 0 1,11(5 ) ,5 4 3 0 0 5 　中国内生稀有稀土矿床时空分布 ,袁忠信 ,矿床地质 ,2…     

中国稀土科技文献索引(2001)

稀土化学与湿法冶金0 86 　 难熔固体ＭＸ(Ｍ =Ｓｃ ,Ｔｉ ,Ｖ ;Ｘ =Ｃ ,Ｎ ,Ｏ)电子结构和力学性质的密度泛函研究 ,李　俊等 ,高等学校化学学报 ,2 0 0 1,2 2 (3) ,46 0 .0 87　 高压合成的Ｃｅ1 ｘＥｕｘＯ2 -δ固溶体的价态和输运性质研究 ,车裕禄等 ,高等学校化学学报 ,2 0 0 1,2 2 (3) ,36 8.0 88　 单相Ｃｅ0 .5Ｚｒ0 .5Ｏ2 立方固溶体的高压高温合成 ,许大鹏等 ,高等学校化学学报 ,2 0 0 1,2 2 (4 ) ,5 2 4.0 89　 纳米晶固溶体Ｃｅ0 .8Ｎｄ0 .2 Ｏ2 -δ的合成与表征 ,林晓敏等 ,高等学校化学学报 ,2 0 0 1,2 2 (4 ) ,5 31.0 90 　 …     

中国稀土科技文献索引(2001)

固体物理、固体化学与新材料36 1　5 0 0ｋｇ钕铁硼永磁磁力吊的设计与实验 ,徐志锋等 ,磁性材料及器件 ,2 0 0 0 ,31(3) ,5 7.36 2 　 具有高综合永磁性能的烧结Ｎｄ Ｆｅ Ｂ磁体 ,何叶青等 ,磁性材料及器件 ,2 0 0 0 ,31(4 ) ,1.36 3　 高性能烧结ＮｄＦｅＢ永磁材料 ,刘英烈等 ,磁性材料及器件 ,2 0 0 0 ,31(5 ) ,2 6 .36 4　ＬａｘＳｒ1-ｘＭｎＯ3 微波吸收特性的研究 ,胡国光等 ,磁性材料及器件 ,2 0 0 0 ,31(6 ) ,14.36 5 　 稀土永磁粉的单轴压制 ,ＮＡＧＥＬＨ等 ,磁性材料及器件 ,2 0 0 0 ,31(6 ) ,33.36 6 　 用Ｓｍ2 Ｃｏ17永磁…     

中国稀土科技文献索引(2000)

固体物理、固体化学与新材料317　ＨＹ分子筛上合成异丙基苯胺 ,朱瑞芝等 ,石油化工 ,2 0 0 0 ,2 9(5 ) ,330 .318　脱铝超稳Ｙ沸石催化合成环己酮乙二醇缩铜 ,张　敏等 ,石油化工 ,2 0 0 0 ,2 9(11) ,85 3.319　 硼酸铜钙晶体的提拉法生长研究 ,王国富等 ,中国科学技术大学学报 ,2 0 0 0 ,30 (4) ,4 73.32 0 　 添加Ｚｒ对ＮｄＦｅ合金ＨＤＤＲ磁粉的磁性能及显微组织的影响 ,龚朝辉等 ,稀土 ,2 0 0 0 ,2 1(2 ) ,37.32 1　Ｌａ2 Ｏ3 Ｍｏ阴极材料中Ｌａ2 Ｏ3 稳定性研究 ,王金淑等 ,稀土 ,2 0 0 0 ,2 1(6 ) ,18.32 2 　ＮｄＦ3 ＬｉＦ Ｎ…     

中国稀土科技文献索引(2001)

6 37　 用ＤＨＥＤＣＭＰ在逆流色谱上分离镧系金属离子 ,金玉仁等 ,化学学报 ,2 0 0 0 ,5 8(6 ) ,6 92 .6 38　 等离子体质谱法测定地质样品中痕量稀土元素的基体效应及多原子离子干扰的校正研究 ,故圣虹等 ,高等学校化学学报 ,2 0 0 0 ,2 1(3) ,36 86 39　ＺｒＯ2 Ｙ2 Ｏ3 Ａｌ2 Ｏ3 系统的拉曼光源 ,谷晋骐等 ,天津大学学报 ,2 0 0 0 ,33(6 ) ,795 .6 4 0 　 红外法测定富镧混合稀土中磷和硫 ,王颖娥 ,理化检验 (化学分册 ) ,2 0 0 0 ,36 (5 ) ,2 2 8.6 4 1　 感耦等离子体质谱法直接测定碳酸盐中超痕量稀土元素 ,胡圣虹等 ,岩矿测试 ,…     

中文核心期刊要目总览(2000年版)

O6化学类核心期刊表序号刊　　名序号刊　　名序号刊　　名1高等学校化学学报 9催化学报 1 7结构化学2分析化学 1 0有机化学 1 8分析试验室3化学学报 1 1高分子学报 1 9化学试剂4物理化学学报 1 2光谱学与光谱分析 2 0理化检验 .化学分册5化学通报 1 3无机化学学报 2 1分子催化6应用化学 1 4化学物理学报 2 2分析测试学报7中国科学 .B辑 ,化学 1 5化学研究与应用 2 3分析科学学报8色谱 1 6中国稀土学报中文核心期刊要目总览(2000年版)     

中文核心期刊要目总览(2000年版)

O6化学类核心期刊表序号刊　　名序号刊　　名序号刊　　名1高等学校化学学报 9催化学报 1 7结构化学2分析化学 1 0有机化学 1 8分析试验室3化学学报 1 1高分子学报 1 9化学试剂4物理化学学报 1 2光谱学与光谱分析 2 0理化检验 .化学分册5化学通报 1 3无机化学学报 2 1分子催化6应用化学 1 4化学物理学报 2 2分析测试学报7中国科学 .B辑 ,化学 1 5化学研究与应用 2 3分析科学学报8色谱 1 6中国稀土学报中文核心期刊要目总览(2000年版)     

中国稀土科技文献索引(1991)

地质与选矿001 NaZsiO3对稀土、萤石等矿物分离的影响,任俊等,稀有金属,1991,15(3) 170.002吸附稀土的粘土矿离子交换平衡研究,池汝安等,中南矿冶学院学报,1991,22(2),142.003闽北麻源群Sm--Nd、R卜sr同位素年龄研究,袁忠信等,岩石矿物学杂志,1 991,10(2),】2.佣4白云鄂博稀土矿床的形成年代:Sm一Nd同位素数据,张宗清等,岩石矿物学杂志,1991,10(l),80.佣5沉淀浮选法回收废液中稀土的实验研究,翟秀静等,环境科学,1991,12(1),44.佣6内蒙乌拉山群岩石的稀土地球化学特征及其所反应的成岩环境,甘盛飞等,北京大学学报(自然科学版), 1991,27(2…     

中国稀土科技文献索引(2001)

固体物理、固体化学与新材料4 5 3 　ＬＤ抽运Ｎｄ∶ＹＶＯ4腔内倍频连续波 8 8Ｗ绿光激光器 ,何京良等 ,中国激光 ,2 0 0 0 ,Ａ2 7( 6) ,4 81.4 5 4 　ＬＤ抽运Ｎｄ∶ＹＶＯ4的平—平腔微片激光器 ,马立华等 ,中国激光 ,2 0 0 0 ,Ａ2 7( 6) ,4 83 .4 5 5 　 主动谐波锁模掺铒光纤环形激光器调制特性研究 ,王　林等 ,中国激光 ,2 0 0 0 ,Ａ2 7( 6) ,4 92 .4 5 6　Ｔｍ∶ＢａＹ2 Ｆ8的频率上转换发光 ,李宝凌等 ,中国激光 ,2 0 0 0 ,Ａ2 7( 6) ,5 5 1.4 5 7　钛宝石激光抽运的Ｎｄ∶ＧｄＣＯＢ自倍频激光器研究 ,吕军华等 ,中国激光 ,2 0 0 0…     

欢迎向《中国稀土学报》(双月刊)中、英文版投稿

《中国稀土学报》是由中国稀土学会主办、北京有色金属研究总院承办、北京大学协办的综合性学术刊物 ,创刊于 1 983年 ,从 1 990年开始以中、英文两种版本向国内外公开发行 ,并将于 2 0 0 1年改为双月刊。由中科院院士、北京大学教授徐光宪先生任主编。《中国稀土学报》报道的主要内容有稀土化学与湿法冶金 ;稀土金属学与火法冶金 ;稀土新材料 ;稀土固体物理与固体化学 ;稀土应用研究 ;稀土分析检测 ;稀土地质、矿物和选矿等。《中国稀土学报》位居 1 997年中国自然科学核心期刊影响因子第 64位 ,化学类核心期刊第六位。并被美国“ＳＣＩ”…     

利用手持技术改进测定乙醇分子结构实验

利用压强传感器代替排水集气法,改进测定乙醇分子结构实验的仪器装置,并探索最佳反应条件。另外,设计两个空白实验,结合压强变化曲线对实验误差进行相关讨论。     

光谱仪测试范围的扩展

由于石化行业的生产需要，其材质的使用具有多样性和广泛性，经常会出现顾客委托的测试样品的一个或几个元素跨越光谱仪现有测试程序测量范围的情况。本法通过对光谱仪测试原理的认识，根据光谱仪的测试能力及标样的采集，实现了一个或几个元素测量范围的扩展，并对其测量的影响因素进行了研究。     

Dichroism of absorption and polarization of phosphorescence of molecules of the closed form of nitrobenzospirothiopyran

The spectral-polarization characteristics of absorption and phosphorescence of molecules of the initial form of nitro-substituted indolinospirobenzothiopyran were studied in oriented polyethylene films and in solutions with different polarity. An oscillator model of the electron transitions responsible for the formation of absorption and luminescence spectra was suggested. It was established that the principal differences in the spectral and photophysical properties of the compound studied and its oxygen-containing analog are associated with the fact that the electronegativity of the S atom is lower than that of the O atom. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1143–1146, June, 1997.     

Influence of viscosity of medium on processes of oxygen quenching of excited states of mesoporphyrin

The oxygen quenching rate constants for singlet and triplet excited states of the dimethyl ester of mesoporphyrin IX increase with decreasing viscosity of the medium and reach a maximum at a viscosity of approximately 0.4 mPa·sec, after which the rate constants begin to decrease. The drop in rate constant with increasing fluidity of the medium may be related to a nonequilibrium character of the elementary act in the interaction of the reactants in the solvent cage. In viscous media such as isopropyl alcohol, isobutyl alcohol, and isoamyl alcohol, the reaction radius is greater than the sum of the radii of the reacting particles. The long-range character of these processes is due to the relatively weak dependence of the quenching probability on distance.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 25, No. 2, pp. 161–167, March–April, 1989.     

Determination of heats of detonation and influence of components of composite explosives on heats of detonation of high explosives

The heats of detonation of 20 simple high explosives and explosive mixtures were determined by means of an adiabatic detonation calorimeter designed by the authors. The results indicated that the performance of the instrument was reliable and the experimental data were very accurate. For explosive mixtures, there was a linear accumulative relationship between the heats of detonation of the explosive mixture and its components. Accordingly, the heats of detonation of explosive mixtures could be calculated directly from the heats of detonation of simple explosives and the characteristic heats of other components. The experiments showed that the gold or brass shell of the cylindrical charge could be substituted by a thick-walled porcelain shell, which had the advantage of cheapness.

     

Neutral diterpenoids of oleoresins of five species of conifers of Transcarpathia

The compositions of the neutral diterpenoids of the oleoresins of five species of conifers growing in the Transcarpathia have been studied. It has been found that the oleoresins ofAbies alba M.,Larix decidua M., andPicea excelsa L. contain more than 50% of neutral diterpenoids. The group and qualitative compositions of the oxygen-containing diterpenoids have been determined. In the oleoresins ofAbies alba,Picea excelsa, andPicea abies tertiary alcohols — cis-abienol and isocembrol — predominate, while inLarix decidua the main component is the hydroxy ester larixyl acetate. Primary alcohols related to the resin acids have been found in all the oleoresins investigated. Features of the distribution of diterpenoids according to the species of conifers have been revealed. The results obtained are necessary for the chemotaxonomy of conifers of the family Pinceae.Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR. Translated from Khimiya Prirodynkh Soedinenii, No. 6, pp. 812–816, November–December, 1988.     

物质分配系数的测定实验改进

实验教学目的是从解决实际问题出发,以实验技术训练和实验设计思想培养为目标。介绍了将单一的物质分配系数测定实验改进为综合实验,提高了实验效果及实验资源利用率。     

Calculation of enthalpies of hydrogenation of hydrocarbons

Sets of hydrogen molecule equivalents have been developed which permit the calculation of hydrogenation of different types of carbon-carbon bonds from ab initio total energies (3-21G and 6-31G* basis sets, and, to a more limited extent, for MP2/6-31G* data) of reactants and products. The calculated enthalpies of hydrogenation are in good agreement with experiment for unstrained molecules, with average errors on the order of 2 kcal/mol. The 6-31G* equivalents allow the enthalpies for strained molecules to be calculated accurately, but the 3-21G equivalents do not. The equivalents for both basis sets have been tested by calculating the enthalpies of hydrogenation of carbon-carbon bonds in nitrogen- and oxygen-containing organic molecules, free radicals, and classical carbocations. The results are in good agreement with experiment in most cases.     

非那雄胺合成工艺改进

非那雄胺能抑制5α-还原酶的活性,明显降低二氢睾酮水平,是一种治疗良性前列腺增生的有效药品。该合成工艺以甾烯酮酸为原料,将其与氯化亚砜反应,无须分离即与叔丁胺反应得17β-酰胺化合物,再氧化开环,环合,氢化,脱氢合成了非那雄胺。经元素分析、IR、1HNMR、13CNMR、MS分析表征了其结构。该法无须使用昂贵的2,2-二吡啶二硫化物和剧毒药品苯亚硒酸酐,且以乙酸铵代替氨气,降低了对设备的要求和腐蚀,更适用于工业生产。