A stepped pressure cycle is proposed to improve the energy efficiency of refrigeration and heat pump cycles.By constructing multiple suction and discharge pressures, the refrigerant temperatures in the evaporators and condensers underwent step changes and approached the heat source temperatures.This helps to improve heat transfer efficiency and red
A facile in situ synthesis approach and a size control strategy were established to obtain Ag2S nanoparticles in polyimide (PI) composite coatings.Such Ag2S nanoparticles in the composite coatings were characterized, and the effects of the as-obtained Ag2S nanoparticles of different sizes on the mechanical and tribological properties of the nanocom
The volatility and the uncertainty are extended in the global world, being favorised of the vast proportion of the internet and by the IT development.The volatility and the uncertainty are contributing to the apperance of the speculative movements that increase the posibilities of the price overestimation of some financial actives on the new market
Neutron interferometry at the National Institute of Standards Refrigeration Gas Drier and Technology is a well-established program that performs experiments in a wide range of areas including materials science, quantum information, precision measurements of coherent and incoherent scattering lengths, and dark energy/fifth force searches.Central to
When two species hybridize, the two parental genomes are brought together and some alleles might interact for the first time.To date, the extent of the transcriptomic changes in first hybrid generations, along with their functional outcome constitute an important knowledge gap, especially in parasite species.Here we explored the molecular and funct