Soil microorganisms are known to significantly contribute to climate change through soil carbon (C) cycle feedbacks.Howe......

Various lead-free ceramics have been investigated in search for new high-temperature dielectrics. In particular, Bi4Ti3O......

采用熔融淬火法制备了Er3 掺杂53ZrF4-20BaF2-4LaF3-3AlF3-20NaF-2.4PbF2(ZBLAN)氟化物透明玻璃。在10 K~540 K温度范围内，测量了对......

为了减小四频激光陀螺零漂的温度敏感性，对数学补偿模型和安装结构热设计进行了研究。通过高低温实验研究了四频激光陀螺零漂与温度......

The NifA protein is the central regulator of the nitrogen fixation genes.It activates transcription of nif genes by an a......