Characterization and distribution of lead in soil and dust along Yanan Overhead Road in Shanghai City were studied. The total lead content in soil was 93.61 mg/kg in average, 3.7 times of the background value in Shanghai, and the total lead content in dust was 324.62 mg/kg.
The paper summarizes several structural styles of elevated rail transit station,and explores the main difficul- ties in structure design,especially the selection of calculation mode and parameter for integrated bridge and sta- tion construction.
A slightly elevated fasting blood glucose profile, 1.5 fold higher serum insulin levels and impaired glucose tolerance was prevalent in ethanol treated rats.
Benzoxycarbonyl chloride was selected as amino group protection agent, and the yield was elevated by replacing sodium bicarbonate with triethyl amide as the acid's neutralizer.
Effects of elevated CO2 concentrations on soil microbial respiration and root/rhizosphere respiration in forest soils
To model the carbon cycle and predict the carbon source/sink of forest ecosystems, we must first understand the relative contributions of root/rhizosphere and microbial respiration to total soil respiration under elevated CO2 concentrations.
Root/rhizosphere and soil microbial respiration have been shown to increase, decrease and remain unchanged under elevated CO2 concentrations.
Due to the uncertainty of both ground motions and structural capacity, it is necessary to consider the seismic performance of viaduct structures using the probabilistic method.
The extracellular basal lamina of the basement membrane is confluent with glial cell capillary walls and may prove to be a viaduct for the transmission of hemolymph-borne substances to the retina or of retinal degradation products to the hemolymph.
Natural frequencies of a flat viaduct road part simply supported on two ends
Viaduct roads have wide application in big cities with high traffic loads, in order to decrease traffic density and to connect subways to highways.
Viaduct roads are constructed using steel structures instead of concrete ones in areas of earthquake risks.