准确称取0.8~1.4mgSRM 2702和2703原始样品各20份(10份用于短照射,10份用于长照射)。各约25 mg样品用于中照射。 90℃下干燥18h,测定2种物质的表面水分含量。以高纯金属(氧化
提问教学是基础教学手法之一,在各个科目教学中都有非常广泛的应用,随着教学改革的不断深入,无论是教学观念还是教学手法都发生了比较大的变化,而提问教学依旧是非常重要的一
The activities of protactinium were produced by the multi-nucleon transfer reactions in bombardment of the natural uranium with 60 MeV/nucleon 18O ions. A simpl
本文调研了本校冶金类专业英语教与学的现状,回顾了语料库应用于专业英语教学的国内外实践,并阐述了冶金类专业英语语料库构建框架,同时进行了计算机网络语料库驱动的冶金类
The radial profiles of electrostatic Reynolds stress,plasma poloidal rotations,radial and poloidal electric fields have been measured in the plasma boundary reg
Neoclassical transport theory for a tokamak in the presence of a large radial electric field with shear is developed using Hamiltonian formalism. Diffusion coef
情境创意美术课程是从儿童的经验和年龄特点出发,有目的地引入或创设一定的情境,激发儿童的兴趣和表现欲望,并使他们在易于激发创造的情境中进行美术活动,创作出具有新颖性和
作为中青年教师,2015年8月,我接手了新一届高一学生,令我感到吃惊的是,这批学生的英语水平相差悬殊,每个班的学困生有20个左右,怎样带动这些学生学好英语?下面就是我在工作中
The 230Ra has been produced via 232Th-2p reaction induced by 60 MeV/u 18O ion irradiation of natural thorium. The radium was radiochemically separated from the