The influence of transient heat transfer in different condensation condition was investigated experimentally in the present paper. Getting condensation heat and mass transfer regularity and characteristics in space ca...
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The influence of transient heat transfer in different condensation condition was investigated experimentally in the present paper. Getting condensation heat and mass transfer regularity and characteristics in space can provide theoretical basis for thermodynamic device such as heat pipes, loop heat pipes and capillary pumped loops as well as other fluid management engineering designing. In order to study the condensation process in space, an experimental study has been carried out on the ground for space experiment. The results show that transit heat transfer coefficient of film condensation is related to the condensation film width, the flow condition near the two phase interface and the pressure of the vapor and non-condensable gas in chamber. On the ground, the condensation heat flux on vertical surface is higher than it on horizontal surface. The transit heat flux of film condensation is affected by the temperature of superheated vapor, the temperature of condensation surface and non-condensable gas pressure. Condensation heat flux with vapor forced convection is many times more than it with natural convection. All of heat flux for both vapor forced convection and natural convection condensation in limited chamber declines dramatically over time. The present experiment is preliminary work for our future space experiments of the condensation and heat transfer process onboard the Chinese Spacecraft "TZ-1" to be launched in 2016.
Favorable facility layouts could effectively improve production efficiency, reduce production cost, and improve comprehensive competitiveness. Take the inefficient workshop facility layout of the H Company as an examp...
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Favorable facility layouts could effectively improve production efficiency, reduce production cost, and improve comprehensive competitiveness. Take the inefficient workshop facility layout of the H Company as an example, the paper studies both transportation and processing cycle for raw materials of its main products, records statistically transport distances and transport weights for each raw material in each processing workshop, and discovers principal issues in the transportation and processing cycle for the H Company. This paper adopts the Systematic Layout Planning(SLP) approach to optimize the layout design of the H Company, and compares non-optimized layout scheme with optimized one from qualitative and quantitative analysis aspect by using the analytic hierarchy process approach. The results show that the application of SLP approach in the H Company could enhance obviously the performance of its workshop facility layout.
Rheumatoid arthritis(RA)is a chronic autoimmune disorder characterized by persistent joint inflammation leading to bone and cartilage damage and even ***,the pathogenesis of RA is multi-factorial and to a large degree...
Rheumatoid arthritis(RA)is a chronic autoimmune disorder characterized by persistent joint inflammation leading to bone and cartilage damage and even ***,the pathogenesis of RA is multi-factorial and to a large degree,remains *** Sini decoction(DSD),a traditional Chinese medicine(TCM)formula,has been widely used as a remedy for rheumatoid arthritis(RA)in recent *** our study,1H-nuclear magnetic resonance(1H-NMR)based metabolomics analysis of 7 potential biomarkers,including taurine(1),urea(2),betaine(3),pyruvate(4),hippurate(5),succinate(6)and acetone(7)was performed to investigate the progression of RA and assess the efficacy of DSD in collagen-induced arthritis(CIA)*** to pathway analysis using identified metabolites and correlation construction,taurine and hypotaurine metabolism,gut microbiota metabolism,pyruvate metabolism,glycolysis/gluconeogenesis,the citrate cycle(TCA cycle)and lipid metabolism were recognized as being the most influenced metabolic pathways associated with *** a result,deviations of metabolites 1,3,4,5,6 and 7 in CIA rats were improved by DSD,which suggested that DSD mediated the abnormal metabolic pathways *** summary,the efficacy and its underlying therapeutic mechanisms of DSD on RA were systematically investigated and expect to provide a new insight in relevant studies of other TCM formulas.
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