نتایج جستجو برای: isothermal condition
تعداد نتایج: 328750 فیلتر نتایج به سال:
the present work is the successful extension of an improved equation of state (eos) to refrigerant fluids. the objective is the prediction of isothermal and saturated liquid densities of refrigerants. two temperature-independent parameters appearing in the modified eos are closely related to critical point properties of refrigerant fluids. our results showed that, the proposed eos can predict w...
an analytical equation of state has been previously modified by papari et al. for representing the volumetric properties of molecular fluids. however the performance of that eos has not been yet well investigated for refrigerant fluids. this study extended that equation to 19 liquid refrigerants to predict their densities at isothermal and saturated states. two temperature-independent parameter...
background and objectives: loop-mediated isothermal amplification is a novel nucleic acid amplification assay providing as a simple diagnostic tool for rapid identification of microbial diseases in developing countries. in this study, a lamp assay was established for yersinia enterocolitica , a leading cause of acute enterocolitis in young children. materials and methods: lamp assay was establi...
مقدمه: استرپتوکوکوس پیوژنز کلونیزه کننده پوست و گلو در بسیاری از انسان ها است. این باکتری علاوه بر عفونت های چرکی حاد، مسئول عوارض و بیماری های خودایمن بعد از عفونت شامل آرتریت واکنشی، گلومرولونفریت و تب روماتیسمی می باشد. روش استاندارد طلایی برای شناسایی استرپتوکوکوس پیوژنز، کشت است. اما به دلیل زمان بر بودن روش مذکور و اهمیت تشخیص سریع آن، استفاده از روش های مولکولی مفید است. تکنیک lamp روش ن...
A cell model is developed and validated to analyze the performance of polymer electrolyte membrane water electrolysis (PEMWE) stacks systems. It used characterize oxygen evolution reaction (OER) activity on a TiO2-supported IrO2 catalyst an unsupported powder catalyst. Electrochemical, stack, system thermoneutral potentials are defined determined for isothermal non-isothermal stack operation. C...
Noise computation of non isothermal flows by hybrid methods for low Mach numbers This study focuses on the numerical calculation of the acoustic field radiated by subsonic turbulent flows with temperature inhomogeneities. Hybrid methods are developed through a Rayleigh-Janzen expansion of the Navier-Stokes equations. The flow is solved in a quasi-incompressible way then the acoustic disturbance...
Since the development of the polymerase chain reaction (PCR) technique, genomic information has been retrievable from lesser amounts of DNA than previously possible. PCR-based amplifications require high-precision instruments to perform temperature cycling reactions; further, they are cumbersome for routine clinical use. However, the use of isothermal approaches can eliminate many complications...
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