Non-evaporable getter(NEG)films are an integral part of many particle accelerators.These films provide conductance-free ......

An accelerator storage ring needs clean ultrahigh vacuum. A TiZrV non-evaporable getter (NEG) film deposited on interior......

采用自制的徐变加载装置,研究了萘系减水剂、聚羧酸减水剂以缓凝组分、减缩组分对等配合比混凝土徐变的影响规律,结合与混凝土同水......