抓住中职教育特点做好德育教育创新工作

中职教育具有鲜明的职业性，很强的实践性和就业的基层性。本文对中职教育特点和中职教育德育现状的分析，借助德育教育的社会观、职业观和发展观等理论依据，提出了做好德育教育创新工作的具体措施。     

电厂厂址选择及厂区总布置与传统环境学的关系

电厂厂址选择及厂区总平面布置设计需考虑各种各样的因素,其中在厂址自然条件方面的因素是和我国传统环境学相通的,文章试图对厂址选择及总布置与传统环境学之间存在的关系加以探讨,希望对电厂设计有所帮助.     

李白、崔颢《黄鹤楼》诗案考辨

分析了李白、崔颢《黄鹤楼》诗案本末,认为肯定诗案的观点缺乏有力的依据,质疑诗案的观点值得重视。提出否定诗案的5个视点及澄清诗案的4点意义。     

Foreword: Values in psychotherapy.

Contends that the glory of psychotherapists' "tree of psychology" is that its roots are absolutely philosophical and, therefore, limitless in scope and devoid of absolute proofs. The trunk of this tree is a solid and substantial store of scientific and empirical data. The branches bear a multitude of flowers, many of which are not quite substantial; not made to endure the critical climate of a questioning world. Ultimately, however, these flowers contain the germinating factor, that which allows human knowledge the possibility of continued growth and rejuvenation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Scattering of Electromagnetic Waves by Drift Vortex in Plasma

In a quasi-two-dimensional model, the scattering of incident ordinary electromag- netic waves by a dipole-electrostatic drift vortex is studied with first-order Born approximation. The distribution of the scattering cross-section and total cross-section are evaluated analytically in different approximate conditions, and the physical interpretations are discussed. When the wavelength of incident wave is much longer than the vortex radius （kia〈〈1）, it is found that the angle at which the scattering cross-section reaches its maxim depends significantly on the approximation of the parameters of the vortex used. It is also found that the total scattering cross-section has an affinitive relation with the parameters of the plasma, while it is irrelevant to the frequency of the incident wave in a wide range of parameters of the vortex. In a totally different range of parameters when incident wave is in the radar-frequency range （then kia 〈〈 1, the wavelength of incident wave is much shorter than the vortex radius）, the numerical procedure is conducted with computer in order to obtain the distribution and the total expression of the scattering crosssection. Then it is found that the total scattering cross-section in the low frequency range is much larger than that in high frequency range, so the scattering is more effective in the low frequency range than in high frequency range.     

BEPC试验束数据获取系统改进及离线数据分析

运行在BEPC电子直线加速器上的试验束,主要利用在线探测器和离线数据分析选择单粒子事例,满足多种单粒子束流试验.本文介绍了试验束改进后的数据获取系统,以及离线数据分析中的飞行时间谱分析,单粒子判选和粒子击中位置定位等.     

放射性示踪法研究Rn和Pt,Pd,Ir的萃取分离—Rh的提纯

本文研究了在不同条件下,TOA-煤油溶液对Pt,Pd,Ir的萃取。在低酸度盐酸介质条件下,用TOA-煤油溶液作为萃取剂可以达到Rh与Pt,Pd,Ir的定量分离。萃取的平衡时间短,分相快。萃取剂可再生使用。用本方法分离经精制获得的金属Rh产品纯度可达>99％。     

可活化稳定同位素^70Zn示踪研究儿童膳食中锌的生物利用率

使用中子活化分析法,以国内仅有的低深缩度^70Zn（18．3％）作为可活化稳定浓缩同位素示踪剂,对我国儿童膳食中锌的生物利用率进行了研究。建立了以阴离子树脂交换法对儿童便样中的锌元素进行富集,经反应堆中了辐照、测量和放射化学分离、测定锌的生物利率方法。提出了普适于各种^70Zn浓缩度锌作为示踪剂、以^70Zn和^68Zn和^64Zn的质量丰度进行生物利率率的计算公式。克服了以^68Zn作为唯一的天然锌指示而引入的计算误差。     

废树脂苯乙烯固化研究(Ⅱ)

本文研究废离子交换树脂苯乙烯固化的工艺条件和固化产品性能鉴定。该法能包容62％(W)废树脂。固化产品均匀、坚韧、抗压强度239kg/cm~2。在去离子水中浸泡120d,浸出率对于~(137)Cs为10~(-6)cm/d,对于~(60)Co和~(85)Sr为10~(-7)-10~(-8)cm/d。长期水浸不溶胀。承受辐照剂量>10~8rad。闪点270℃,燃点290℃左右。加热到450℃不自燃,DTA曲线上235℃前无放热峰。     

Ca-DTPA和Zn-DTPA交替使用降低~(238)Pu致大鼠骨肉瘤发生率的效果

本实验用 Ca-DTPA 和 Zn-DTPA 交替促排~(238)Pu,降低大鼠骨肉瘤的发生率,减少 DTPA 促排的副作用。对大鼠肌肉注射3.7×10~4Bq/kg(体重)~(238)Pu2小时后,交替(每隔一日)肌肉注射 Ca-DTPA 和 Zn-DTPA,共促排90天。实验结果表明,促排结束时,促排组骨肉瘤发生率为10%,而对照组为40%;促排46天后,促排组骨、肝和肾中~(238)Pu 滞留量明显低于对照组。