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The effects of exhaust air vent location on thermal comfort inside a residential building equipped with an evaporative cooling system

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Building Simulation 2021年第4期14卷 1063-1075页

作者： rmin Saraei samir farid moujaes Department of Mechanical Engineering College of EngineeringUniversity of Nevada Las VegasLas VegasNV89154USA

The location of exhaust air vents of an evaporative cooling system can have significant effects on providing thermal comfort and controlling humidity, temperature and air distribution in buildings. In the current study, four different strategies have been evaluated for exhaust air vent locations to provide the optimum thermal comfort inside a typical residential house. This study provides a numerical solution for temperature and relative humidity profiles in the residential house and within the living space in each room typically at a height of 1.8 m or less. By evaluating different exhaust air vent locations in a room, the best strategy(ies) to provide more appropriate thermal comfort condition and obtained and as a conclusion, the exhaust vents should be located on furthest wall away from the entrance of the room and in the middle. The results provided in the current study can eventually be applied in the design of evaporative cooler exhaust vent systems in residential buildings and lead to improve the performance of these systems.

关键词： thermal comfort CFD evaporative cooling system exhaust air vents

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Protective effect of Citrus reticulata peel extract against potassium dichromate-induced reproductive toxicity in rats

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Asian pacific Journal of Reproduction 2019年第6期8卷 267-275页

作者： samir AE Bashandy Omar A-H Ahmed-farid Enayat AOmara Sayed AEl-Toumy Josline YSalib Pharmacology Department National Research Centre33 El-Bohouth St.DokkiP.O.12622GizaCairoEgypt Physiology Department National Organization for Drug Control and ResearchCairoEgypt Pathology Department National Research CentreCairoEgypt Chemistry of Tannins Department National Research CentreCairoEgypt

Objective:To study the protective effect of Citrus reticulata peel extract against potassium dichromate-induced reproductive impairment in male Wistar ***:A total of 35 male Wistar rats were equally divided into 5 *** control group orally received an equivalent volume of saline(1 mL);group 2 was given potassium dichromate at 10 mg/kg/body weight(b.w.)orally for eight weeks;group 3 and 4 orally received Citrus reticulata peel extract at 200 and 400 mg/kg/***,followed by treatment with potassium *** 5 was administered with 400 mg/kg/*** reticulata peel extract *** parameters including oxidative stress(malondialdehyde,antioxidant enzymes),sex hormones(testosterone,luteinizing hormone,follicle-stimulating hormone)and inflammation indexes(tumor necrosis factor-alpha,inter leukin 6)were *** characteristics(sperm morphology,motility and count)were also ***:The decrease of male sex hormones concentration in plasma(testosterone,luteinizing hormone),testicular antioxidant parameters(reduced glutathione,catalase,superoxide dismutase,carnitine),sperm motility and sperm count induced by potassium dichromate was mitigated by Citrus reticulata peel ***,the peel extract alleviated the increase of sperm abnormalities,follicle-stimulating hormone,testicular malondialdehyde,tumor necrosis factor-alpha and nitric oxide levels caused by potassium *** sections of rats treated with the potassium dichromate were characterized by some histopathological changes as disorganization of spermatogonial cell layers and deformation of Leydig cells.A positive immune-reaction for p53 was observed in testicular cells of the rats treated with potassium *** extract of Citrus reticulata peel improved the testicular histology and decreased p53 positive immune-reaction in potassium dichromate administered ***:Citrus reticulata peel extract can alleviate the reproductive toxicity t

关键词： Citrus reticulatapeel extract Potassium dichromate Sperm Testicular function Oxidative stress Anti-inflammatory

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