نتایج جستجو برای: isothermal condition
تعداد نتایج: 328750 فیلتر نتایج به سال:
The central air-conditioning system attract people’s attention because the thermal comfort can be improved by arranging air outlets properly. Moreover, various blow out conditions may adopted to improve indoor environment. In this research, simulation studies accuracy of CFD Momentum method under has been conducted. Firstly, airflow distribution each blowing condition was measured isothermal co...
Non-isothermal crystallization and subsequent melting of three grades of ethylene-vinyl acetate copolymer were investigated by differential scanning calorimetry (DSC) technique. The DSC crystallization curves show that vinyl acetate (VAc) content has the same effect on the onset, peak and final crystallization temperatures, and these copolymers have almost the same spacing of thermal windows un...
We investigate the role of non-isothermality in gravitational collapse and protostellar accretion by explicitly including the effects of molecular radiative cooling, gas-dust energy transfer, and cosmic ray heating in models of spherical hydrodynamic collapse. Isothermal models have previously shown an initial decline in the mass accretion rate Ṁ during the accretion phase of protostellar evolu...
Enterobacter sakazakii is a widespread and life-threatening bacterium especially in polluted powdered infant milk formula. Several methods have been developed for detection of E. sakazakii such as physiological and biochemical methods, PCR and loop-mediated isothermal amplification. However, these procedures were disadvantages due to a long assay time, low sensitivity or the use of toxic reagen...
A rapid multiplex isothermal amplification assay has been developed for detection and identification of multiple blood-borne viruses that infect millions of people world-wide. These infections may lead to chronic diseases or death if not diagnosed and treated in a timely manner. Sets of virus-specific oligonucleotides and oligofluorophores were designed and used in a reverse-transcription loop-...
Received: Revised: Accepted: 2014–05–26 2014–07–14 2014–07–15 Disease diagnosis is of crucial importance in making appropriate therapeutic decisions. Conventionally, diagnosis was based on isolation and identification of the causative agent. This was followed in timeline by the development of serological tests. Nowadays, molecular tests credited with high sensitivity like polymerase chain react...
We analyze a quantum trajectory model given by a steady-state hydrodynamic system for quantum fluids with positive constant temperature in bounded domains for arbitrary large data. The momentum equation can be written as a dispersive thirdorder equation for the particle density where viscous effects are incorporated. The phenomena that admit positivity of the solutions are studied. The cases, o...
We have re-examined the classical problem of the macroscopic equation of state for a hydrostatic isothermal self-gravitating gas cloud bounded by an external medium at constant pressure. We have obtained analytical conditions for its equilibrium and stability without imposing any specific shape and symmetry to the cloud density distribution. The equilibrium condition can be stated in the form o...
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