Zobrazeno 1 - 2
of 2
pro vyhledávání: '"Huayi Miao"'
Publikováno v:
BMC Geriatrics, Vol 23, Iss 1, Pp 1-12 (2023)
Abstract Background As China's aging population continues to grow, the prevalence of mental illness among the seniors has been steadily increasing. The aim of this study is to reveal the changing trends and characteristics of economic burden among se
Externí odkaz:
https://doaj.org/article/4d84cf5b4b0b47128fdaeaf371a2a492
Publikováno v:
Zhejiang Daxue xuebao. Lixue ban, Vol 29, Iss 1, Pp 67-72 (2002)
合成了表面包覆SiO2的超细CaCO3。通过XPS,RD对包覆表面层结构的分析,证实了SiO2以无定形包覆于CaCO3表面,并在其表面形成了Si-O-Ca键。对SiO2包覆超细CaCO3的机理分析结果可知:Na2SiO3的加入量是影
Externí odkaz:
https://doaj.org/article/3a7e1f87adde45ad85dac0659be3c02d