نتایج جستجو برای: thermal and mechanicalparameters

تعداد نتایج: 16874165  

Journal: :journal of food quality and hazards control 0
m. zarei department of food hygiene, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran a. shahriari department of biochemistry, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran f. tarazoudar department of food hygiene, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran m. paknejad veterinary office, andimeshk, khuzestan province, iran

background: lactoperoxidase (lpo) is one of the most heat-stable enzymes in milk and its inactivation has been proposed for monitoring thermal processes. the aim of this study was to provide information on activity and thermal inactivation behavior of lpo in iranian cow and buffalo milk and whey. methods: sixty cow and buffalo milk samples were collected. the lpo activity was measured using spe...

B. Ezzati, F. Hamedi Rad, T Ghafari,

  Objective: Studies have demonstrates that physical properties of denture base affect patient satisfaction and acceptance. Thermal conductivity is among the most important properties of denture base influencing the sense of taste and gingival health. The conventionally used acrylic resin has a low coefficient of thermal conductivity. This study aimed to improve the thermal conductivity of acry...

Journal: :معماری و شهرسازی 0
امیرسعید محمودی استادیار دانشکده معماری، پردیس هنرهای زیبا، دانشگاه تهران سیده ندا قاضی زاده دانشجوی دکتری معماری، پردیس هنرهای زیبا، دانشگاه تهران علیرضا منعام دانشجوی دکتری معماری، دانشکده معماری و شهرسازی، دانشگاه علم و صنعت ایران

the public spaces in our today’s lives involve many sorts of activities, and the design of such spaces requires a wide range of studies. one of the critical studies in our country, due to its climatic variety, is about the thermal comfort of public outdoor spaces. this article has been conducted to investigate about possible architecture and landscape architecture design measurements which coul...

Journal: :international journal of environmental research 0

concentrations of 42 trace elements, including rare earths, in croatian thermal waters wereinvestigated. originating from different parts of croatia, i.e. different types of aquifers, studied thermal watersprovide insight into the range of concentrations of broad spectrum of elements in croatian thermal waters.covering a wide range of temperature (30 - 92 °c), studied thermal waters are general...

Journal: :hepatitis monthly 0
xiu-feng su department of geriatric gastroenterology, qilu hospital, shandong university, jinan, china; department of oncology, yantai affiliated hospital, binzhou medical university, yantai, china xu-fang chen department of oncology, yantai affiliated hospital, binzhou medical university, yantai, china xu-fang chen department of oncology, yantai affiliated hospital, binzhou medical university, yantai, china lei zhang department of infectious diseases, yantai affiliated hospital, binzhou medical university, yantai, china ming yan department of geriatric gastroenterology, qilu hospital, shandong university, jinan, china; department of geriatric gastroenterology, qilu hospital, shandong university, jinan, china

conclusions the incidence of liver abscesses after liver cancer thermal ablation is low. child-pugh class b and class c cirrhosis, biliary tract disease, diabetes mellitus, and porta hepatis tumors are four significant risk factors. combined ablation and pei reduces the rate of liver abscesses. background radiofrequency ablation (rfa) and microwave ablation (mwa) are the most frequently used th...

Vegetation moderates a microclimate by casting shadows, increasing light reflection, evaporation and perspiration; and correcting wind patterns. The present study aims to investigate the microclimatic role of vegetated surfaces and bodies in improving thermal comfort in outdoor spaces between buildings. The main research question is which of the green system modes, that is, horizontal vegetatio...

Journal: :journal of heat and mass transfer research(jhmtr) 2014
mohammad hemmat esfe seyfolah saedodin

experimental study of effective thermal conductivity of zno/eg nanofluid is presented in thisresearch. the nanofluid was prepared by dispersing zno nanoparticles in ethylene glycol using asonicator and adding surfactant. ethylene glycol based nanofluid containing zno nanoparticlewith a nominal diameter of 18 nm at different solid volume fractions (very low to high) atvarious temperatures was ex...

Journal: :international journal of nanoscience and nanotechnology(ijnn 0
a. ghozatloo faculty member of research institute of petroleum industry (ripi), west blvd. azadi sport complex, p.o. box: 14665-137, tehran, iran m. shariaty niassar transport phenomena & nanotech. lab (tpnt), school of engineering, university of tehran, p.o. box: 11155-4563, tehran, iran a. rashidi faculty member of research institute of petroleum industry (ripi), west blvd. azadi sport complex, p.o. box: 14665-137, tehran, iran

in this research, graphene was synthesized by chemical vapor deposition (cvd) method in atmosphere pressure (14.7 psi). different functionalization method was used for oxidizing of graphene such as acid and alkaline treatments. the functionalized graphene (fg) was characterized by ftir and raman spectroscopy. nanofluid with water and different concentration (0.05, 0.15 and 0.25 wt %) of fg were...

A. Amrollahi A. Behzadmehr, A. M. Rashidi M. Izadi M. M. Shahmardan

This paper was aimed to address the modeling of effective thermal conductivity and viscosity of carbon structured nanofluids. Response surface methodology, D_optimal design (DOD) was employed to assess the main and interactive effects of temperature (T) and weight percentage (wt %) to model effective thermal conductivity and viscosity of multi wall and single wall carbon nanotube, CVD and RGO G...

Liquid desiccants such as glycols are used in dehydration process, among which Triethylene Glycol (TEG) is considered as a common choice. The addition of nanoparticles to TEG as the base fluid is one of the prevalent method to improve thermal properties of TEG. In this study, an experimental investigation was performed on thermal conductivity of TEG-based nanofluids with 20 and 40 nm diameter c...

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