نتایج جستجو برای: utilization factor
تعداد نتایج: 959340 فیلتر نتایج به سال:
Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, People’s Republic of China (L.J., Y.L., H.S., Y.H., W.G., H.M., S.L., Y.F., C.Z.); National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing 100081, People’s Republic of China (L.J., Y.F., C.Z.); Beijing Institute of Pharmacology and Toxicology, Beijing 100850, People’s Republic of C...
a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...
From 2000 to 2010, dental care utilization increased among children and declined among adults. The decline among adults began in the early-2000s. For children, the increase in utilization was driven entirely by gains among lower income groups. In contrast, utilization declined for all adult income groups, but most severely for poor adults. Financial barriers to care are growing for adults...
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