A Comparative Study on Influence on Plant Communities and Mutual Species and Response to Different Temperature Gradient and Combination of Water and Heat in Inner Mongolia Steppe Region of Temperate Zone
From the borehole temperature log and thermal conductivity measurements of core samples from the Well Dangshen 3 in the Dangyang synclinorium, Jianghan Basin, the present temperature gradient and heat flow were 20～24 ℃/km and 52 mW/m 2, indicating the stable tectonic nature of the Yangtze craton.
The analysis for an etch method with temperature gradient showed that the pore size decreased with the increasing temperature gradient and could decrease to one-fifth of the normal size under the practical conditions.
The concentration and temperature gradient between gas phase and the surface of supported silver catalyst,as well as the efficiency factor of external diffusion during the ethylene oxidation for epoxy ethane process in a fixed bed reactor was simulated numerically based on various kinetic equations related with silver catalysts.
The method was proposed that adopts axial alternating magnetic field coupled with the pulse electric field in order to improve the temperature gradient during electric field activated sintering(EFAST).
The moment at which the air temperature gradient of che lowest troposphere reverses is the optimum time for electro-optical distance measurement. This paper introduces two calculation formulas to forecast the reverse moment of any date and any place in China. The checking computations indicate that the mean square error of prediction is within±14~m.
The ratio of the moisture content (MC) gradient to the temperature gradient (dM/dT) was calculated and the factors influencing moisture movement under nonisothermal conditions were discussed.
The moisture content gradient opposite to the temperature gradient was established, and the dM/dT was below 0.9%/°C.
The thermal deformation problem in the continuous casting of a slab subjected to thermal loading because of the temperature gradient along the solidified shell thickness is investigated.
This research is useful for analyzing the bulging deformation in the continuous casting of a slab under the static pressure of the molten steel and the thermal loading because of the temperature gradient along the solidified shell thickness.
The anatomical features of leaves in 11 species of plants grown in a temperature gradient and a temperature + CO2 gradient were studied.