Characteristics and applications of 800MPa high-strength steel for ultra high-rise buildings It has upper and lower bounds for yield (Fy) and tensile (Fu) strength as of 650-770MPa and 800-950MPa, respectively, with yield ratio (Fy/Fu) ... DH Kim,SE Lee,JH Kim,... - 《Seaisi Quart...
LIAO Quan,ZHOU Chao,CUI Weizhi.Analysis of the measures to prevent the thermal shortcut of a vertical Ushaped embedded tube heat exchangerJ. Journal of Engineering for Thermal Energy and Power, 2012,276:715-720. In Chinese 5PIECHOWSKI M. Heat and mass transfer model of a ground heat exchan...