We made a PtSe2 coated highly reflective gold mirror to serve as a saturable absorber mirror. The modulation depth, saturable intensity and non-saturable loss of our PtSe2 sample were measured to be 10.2%, 0.093 GW/cm2 and 37.71%, respectively. By incorporating the as-prepared saturable ...
实施学生综合素质评价是我国基础教育改革中教育评价的新发展,它是以落实、推进素质教育培养目标为目的的教育活动。本文以高密市为例,通过对初中学生综合素质评价的内... 郭继磊 - 山东师范大学 被引量: 5发表: 0年 以综合素质评价撬动学校育人方式变革 综合素质评价是教育改革的"最后一公里".育英学校从问题出发,厘...
摘要: 分析圈量子引力中的自旋结网圈态,用封闭的图形计算法,系统推出了体积算符对自旋结网圈态的顶角作用的图形表达式,并计算9-j符号的教学表达式,得出了体积算符的本征值.关键词:圈量子引力 自旋结网圈 n价顶角 体积算符 9-j符号 Loop quantum gravity spin network n-vertex volume operator 9-j symbol ...
China's LPG demand has fallen signifcantly and is poised to stay weak until at least the end of this month as a result of the coronavirus outbreak. Declining residential and petrochemical use of LPG has forced China's refners and import terminals to slash domestic prices to clear inventories...
位于南美安第斯成矿带中部的秘鲁具有良好的成矿条件。选取秘鲁南部进行成矿远景区优选,为企业快速确定勘查靶区。以GIS技术为手段,对其地质、矿产、航磁、化探、遥感等... 席振,高光明,肖娟,... - 《现代地质》 被引量: 13发表: 2013年 浅析我国医疗责任保险之困境 Along with the progress of the medicine, ...