The aim of this study was to further research the mechanical properties epoxy thick-layer rubber isolation bearings, adopting orthogonal design and efficacy coefficient methods in order optimize geometric dimensions material parameters bearing, summarizing influence various factors on overall performance indicators determining optimal plan through parameter adjustment. Through a combination exp...

In recent years, investigators have noted a trend toward a declining proportion of male births in many industrialized nations. While men bear the sex-determining chromosome, the role of the female partner as it pertains to fertilization or miscarriage may also alter the gender ratio. We attempted to determine a man's secondary sex ratio (F1 generation) by directly examining the sex chromosomes ...

Abstract: Thin-walled integrated flexible support structures are the major trend in the development of current rolling bearing technology. A thin-walled, integrated, squirrel-cage flexible support roller bearing, quasi-dynamic iterative finite element analysis (FEA) model is established in this paper. The FEA model is used to calculate the structural deformation of the thin-wall rings and suppo...

amygdaloidal, cavity- and fracture-filling zeolites in eocene volcanic rocks from the kuh-e-aradeh of southern kahrizak, in the northernmost part of central iran have been studied in some detail by optical, chemical analysis, sem, and xrd techniques. the zeolites identified, in order of their relative time of formation from early to late, are tetranatrolite, analcime, natrolite, mesolite, stilb...

E. Yeakel (4) reported on changes in liver weight as compared to body weight in Wistar a! bino rats bearing induced or transplanted tumors. He concluded that the liver weight of the tumor bearing host is increased yet does not show any correlation either to the body weight or to the weight of the tumor. Autopsies carried out in this laboratory on rats and mice bearing spontaneous or grafted tum...