A new EPR center having C2v symmetry and S=1, labeled as Si-PK3, has been observed for the first time in neutron-irradiated FZ-silicon. The spectra start to app
本文基于2011年和2013年中国健康与养老追踪调查(CHARLS)面板数据,研究了中国45岁以上中老年群体抑郁倾向对劳动参与和劳动时长的影响。面板数据回归发现,抑郁倾向对中老年群
张江:古人提倡“十年磨一剑”,但在今天,文艺创作“一年磨十剑”的现象似乎越来越盛行。不讲质量,只讲数量,不求精度,只求长度,注定难以产生精品。一个时代文艺创作的高度,取
一、名词的分类名词可分为专有名词和普通名词1.专有名词包括人名、地名及某些类人和事物专有的名称。专有名词的第一个字母要大写。如:
5月17日,我有幸参加了习近平总书记主持召开的哲学社会科学工作座谈会,这是关系到我国哲学社会科学进一步繁荣发展的一次重要的会议。习总书记在认真听取了一些哲学社会科学
本文利用2013-2014年全国流动人口动态监测数据,考察了方言能力对流动人口长期居留意愿的影响,并通过引入“城市归属感”作为中介变量,探讨了方言能力对流动人口长期居留意愿
The function of wind regime in urban planning and general layout of industrial enter-prise is discussed. It is pointed out that if only the dominant wind direct
A model for the negative phase of ionospheric storms in middle latitudes is presented. It is assumed that there will be molecule enriched air in the thermospher
The optical shadowgraphy has been used to investigate the inhomogeneous structures in laser-produced plasmas, especially the small-scale jet structure on the re
This paper summarizes the principles and ideas in the design of a graphical specification language, called GSPEC. Based on the requirement analysis of specifica