نتایج جستجو برای: apparent density
تعداد نتایج: 514111 فیلتر نتایج به سال:
BACKGROUND A reduction in the number of podocytes and podocyte density has been documented in the kidneys of patients with diabetes mellitus. Additional studies have shown that podocyte injury and loss occurs in both diabetic animals and humans. However, most studies in animals have examined relatively long-term changes in podocyte number and density and have not examined effects early after in...
An "apparent life-threatening event" (ALTE) refers to an episode that is of concern to the caregiver and is associated with a combination of apnea, color change, change in tone, choking, or gagging. Although the natural history of ALTE is most often benign, there is a risk for subsequent morbidity and mortality. The provider must stabilize the infant as needed, obtain key history, identify and ...
Exploiting new, low-cost and efficient electrocatalysts for hydrogen evolution reaction (HER) is important to resolve the energy crisis and environment pollution. In this work, graphene decorated with Ni nanoparticles (NPs) were synthesized via one-pot reduction using graphene oxide (GO, the obtained composite was denoted as GN) as a precursor. The as-prepared composite GN exhibits much better ...
In this research, two series of ultra-low cement high alumina refractory castables containing 0 and 0.4 wt.% of nano-titania were prepared using different amounts of polycarbonic acid (DOLAPIX FF 26) as a dispersant. Several characteristics including microstructure, flowability, mechanical strength, bulk density and apparent porosity of the samples were analyzed. The results showed that the opt...
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