Water content, dry density, void ratio, depth of soil layer, and seismic loading may all exert influence on the seismic ......

The fatigue cracking and fracture behavior of cold-drawn copper subjected to cyclic torsional loading were investigated ......

一次写入长周期光纤光栅提高了写制的效率，解决了多次写入不重合的问题，具有重要的研究价值。经大量的实验研究发现，在适当的应力和能......