We present the study on molecular weight dependent sub-Tg surface dynamics of polymer thin films byusing the Nano-step experiment [McGraw et al.Soft Matter 7,78
The study of cis-trans conformation transition of polyphenylacetylene with different substituents is very important in polymer science.Using traditional ens
蜜蜂复杂且灵敏的嗅觉系统是其识别蜂群内化学信号以及区分外界环境中不同气味物质的生理基础。中华蜜蜂Apis cerana cerana Fabricius（简称中蜂）是我国特有的蜜蜂品种，善于利用
胡锦涛总书记在人民日报社视察工作时指出,新闻舆论处在意识形态领域的前沿,对社会精神生活和人们的思想意识有着重大影响,舆论导向正确,利党利国利民,舆论导向错误,误党误国
背景与目的:脊髓损伤是世界上备受关注且尚未攻克的难题,脊髓损伤带来的肢体残疾和感觉障碍给患者的生活造成极大的困扰,因此脊髓损伤的治疗仍然是目前学者们研究的热点。脊髓损伤后,星形胶质细胞增殖活化,在损伤初期可以防止炎症的进一步扩散,具有一定的保护作用;但是随着星形胶质细胞的过度增殖,后期会在创口处形成胶质瘢痕,阻碍神经传导,影响脊髓损伤后的修复。因此,抑制星形胶质细胞过度增殖是治疗脊髓损伤的重要策略
A comprehensive underground monitoring was conducted in a coal mine. The purpose of this research was to clarify the deformation and failure behavior of stratif