نتایج جستجو برای: foam stabilization

تعداد نتایج: 66173  

2013
Dan R. Lipşa Robert S. Laramee Simon J. Cox I. Tudur Davies

SUMMARY Foam researchers generate large, complex, time-dependent data sets with hundreds or thousands of individual bubbles and thousands of time steps. However, no foam specific visual-ization software exists. We briefly describe foam research and its challenges and we present FoamVis, a software application that provides visualization, exploration and analysis techniques for foam research.

2008
Shadi Mahjoob Kambiz Vafai

Metal foam heat exchangers have considerable advantages in thermal management and heat recovery over several commercially available heat exchangers. In this work, the effects of micro structural metal foam properties, such as porosity, pore and fiber diameters, tortuosity, pore density, and relative density, on the heat exchanger performance are discussed. The pertinent correlations in the lite...

Journal: :Aerosol science and technology : the journal of the American Association for Aerosol Research 2016
Levi W D Mines Jae Hong Park Imali A Mudunkotuwa T Renée Anthony Vicki H Grassian Thomas M Peters

Porous polyurethane foam was evaluated to replace the eight nylon meshes used as a substrate to collect nanoparticles in the Nanoparticle Respiratory Deposition (NRD) sampler. Cylindrical (25-mm diameter by 40-mm deep) foam with 110 pores per inch was housed in a 25-mm-diameter conductive polypropylene cassette cowl compatible with the NRD sampler. Pristine foam and nylon meshes were evaluated ...

2010
Tamás Huszár László Szécsi

Several types of foam can be found both in nature and artificial environments; yet it is rare in computer graphics due to its complexity. Modelling foam structure and dynamics by simulating the underlying bubble structure has a high computational cost. To model such a complex phenomena we need to use serious simplifications while maintaining realism and detail. In this paper we propose a method...

2017
Tao Han Jianli Jin Congxu Wang Youyi Sun Yinghe Zhang Yaqing Liu

Ag nanoparticles-modified 3D graphene foam was synthesized through a one-step in-situ approach and then directly applied as the electrode of an electrochemical sensor. The composite foam electrode exhibited electrocatalytic activity towards Hg(II) oxidation with high limit of detection and sensitivity of 0.11 μM and 8.0 μA/μM, respectively. Moreover, the composite foam electrode for the sensor ...

Open pore metallic foams can be used for high temperature, high performance heat exchanger due to their high gas permeability and heat conductivity provided that skins properly attach to the foam’s struts on the surface. In the current study, a novel process was successfully developed to fill pores on the surface of the foam sheet in order to deposit skin on the foam specimens by thermal sprayi...

ژورنال: کومش 2021

Introduction: Atherosclerosis is one of the leading causes of cardiovascular disease. Following endothelial damage and platelet aggregation in that area and the recruitment of monocytes and their conversion to macrophages, LDL gradually accumulates under the endothelial artery wall and gradually oxidized and convert to oxi-LDL. By swallowing it, the macrophages turn into foam cell and then athe...

Journal: :Applied sciences 2021

Most potato proteins are fractions of albumin and globulin, soluble in water salt solutions, respectively; these patatin glycoproteins, with a pIs the range 4.8–5.2. This group is typical they referred to as or tuberin. Around 30–50% comprise numerous protease inhibitors molecular weight 7–21 kDa; often heat-resistant, showing wide spectrum health-promoting effects. The nutritional value relate...

Journal: :Soft matter 2014
Rémi Deleurence Caroline Parneix Cécile Monteux

We investigate the stabilization of air-water interfaces by mixtures of negatively charged latex particles (sulfate polystyrene) and cationic surfactants (alkyl trimethylammonium bromides). First we report results concerning the binding of surfactant molecules to the latex particles. As the surfactant concentration increases, the charge of the particles reverses, from negative to positive, beca...

Journal: :iranian journal of public health 0
p.nassiri f. golbabaie s. nasseri m. mahmoodi k. mehrain

the importance of the use of activated charcoal tubes for sampling gases and vapors is very well-known. for producing these tubes in the country, their production started in the laboratory of the department of occupation al health using activated charcoal, polyurethane foam and glass wool and consequently two types of foamed and foamless tubes were produced. to investigate the quality of the ra...

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