Results 31 to 40 of about 231,922 (205)
Meikuang Anquan, 2021 In order to accurately calculate the convective heat transfer coefficient between the mine roadway air flow and the roadway wall, according to the heat and moisture exchange principle between the roadway air flow and the roadway wall, and considering ...
GAO Jianan, WU Fengliang
doaj +1 more source
, 1969 Friction and wear life studies on burnished films of the compound graphite fluoride have demonstrated its potential as a solid lubricant material. It is effective in moist air, dry air, or in dry argon at temperatures up to approximately 400 degrees ...
Fusaro, R. L., Sliney, H. E.
core +1 more source
A Climatology of the Tropospheric Thermal Stratification Using Saturation Potential Vorticity [PDF]
, 2007 The condition of convective neutrality is assessed in the troposphere by calculating the saturation potential vorticity P* from reanalysis data. Regions of the atmosphere in which saturation entropy is constant along isosurfaces of absolute angular ...
Korty, Robert L., Schneider, Tapio
core +1 more source
Research on Water Vapor Permeability in Porous Dust Layer on the Surface of Cold Metal Fin
Zhileng xuebao, 2021 To develop a self-cleaning technique for fin-and-tube heat exchangers by adopting the method of dust layer freezing and expansion, the mechanism of water vapor permeability in porous dust layers on fin surfaces should be investigated.
Zhan Feilong +3 more
doaj
Portable breathing system [PDF]
, 1979 A semiclosed-loop rebreathing system is discussed for use in a hostile environment. A packed bed regenerative heat exchanger providing two distinct temperature humidity zones of breathing gas with one zone providing cool, relatively dry air and the ...
Lovell, J. S.
core +1 more source
The lightness of water vapor helps to stabilize tropical climate. [PDF]
, 2020 Moist air is lighter than dry air at the same temperature, pressure, and volume because the molecular weight of water is less than that of dry air. We call this the vapor buoyancy effect.
Seidel, Seth D, Yang, Da
core +1 more source
Air-drying pretreatment effect on soil enzymatic activity
Plant, Soil and Environment, 2017 Air-drying of soil samples is a common practice for all-purpose soil testing. However, it may cause the cessation of microbial activity changing the biochemical attributes.
Rodrigo Santos MOREIRA +3 more
doaj +1 more source
A central arctic extreme aerosol event triggered by a warm air-mass intrusion
Nature Communications, 2022 Warm and moist air-mass intrusions into the Arctic are more frequent than the past decades. Here, the authors show that warm air mass intrusions from northern Eurasia inject record amounts of aerosols into the central Arctic Ocean strongly impacting ...
Lubna Dada +18 more
doaj +1 more source
Definition of the Moist-Air Exergy Norm: A Comparison with Existing “Moist Energy Norms” [PDF]
Monthly Weather Review, 2020 AbstractThis study presents a new formulation for the norms and scalar products used in tangent linear or adjoint models to determine forecast errors and sensitivity to observations and to calculate singular vectors. The new norm is derived from the concept of moist-air available enthalpy, which is one of the availability functions referred to as ...
Marquet, Pascal +2 more
openaire +2 more sources
Case Studies in Thermal EngineeringThe turbo-expander is the crucial equipment for obtaining refrigeration capacity and power in the system, and the aerodynamic performance is vital for the system.
Xiaoling Yang +6 more
doaj +1 more source