As the phase-out of chlorofluorocarbons (CFC's) approaches, there is a current need for the development of new vapor compression chillers which can operate with non-CFC refrigerants while still maintaining high operating efficiencies. Redesign of the traditional flooded evaporator used in refrigeration chillers so as to incorporate a spray evaporation capability offers both a potential for incr...

The objective of this study was to investigate the stability and aerosolization of pressurized metered dose inhalers (pMDIs) containing thymopentin nanoparticles. Thymopentin nanoparticles, fabricated by a bottom-up process, were suspended in hydrofluoroalkane (HFA) 134a together with cineole and/or n-heptane to produce pMDI formulations. The stability study of the pMDIs obtained was carried ou...

Solar power generation has emerged as one of the most rapidly growing sources renewable energy. The solar thermal system with a Rankine cycle used to harness energy and generate electricity from low temperature heat source is an emerging technology. major drawback its poor efficiency, which around 10% 15%. Although prior attempts improve efficiency use Nano fluids in transfer applications have ...

The phase out of anthropogenic ozone-depleting substances such as chlorofluorocarbons under the terms Montreal Protocol led to development and worldwide use hydrofluorocarbons (HFCs) in refrigeration, air conditioning, blowing agents propellants. Consequently, over recent years, atmospheric abundances HFCs have dramatically increased. are powerful greenhouse gases now controlled 2016 Kigali Ame...

The objective of this work was to estimate allelic frequencies of the polymorphisms IGF2/MboII (G > T) of the insulin‐like growth factor 2 (IGF2) gene, DQ499531.1:g.134A > T of the pro‐melanin‐concentrating hormone (PMCH) gene, and DQ667048.1:g.3290G > T of the RAR‐related orphan receptor C (RORC) gene in beef cattle of different genetic groups, and to evaluate the associations between these po...