نتایج جستجو برای: polymeric foam

تعداد نتایج: 38659  

2008
Melvin X.L. Tan Karen P. Hapgood

Wet granulation using foaming binder solution is a new approach of liquid delivery to create granules. This study compares wet granulation via foamed binder addition method and sprayed binder addition method by studying the kinetics of foam and drop penetrations into loosely packed powder beds. Foam and drop nucleation kinetics were compared by examining specific penetration time (penetration t...

Journal: :Remote Sensing 2014
En-Bo Wei Shu-Bo Liu Zhenzhan Wang Xiao-Lin Tong Shuai Dong Bin Li Jing-Yi Liu

For a foam-covered sea surface, it is difficult to retrieve sea surface salinity (SSS) with L-band brightness temperature (1.4 GHz) because of the effect of a foam layer with wind speeds stronger than 7 m/s, especially at low sea surface temperature (SST). With foam-controlled experiments, emissivities of a foam-covered water surface at low SST (−1.4 °C to 1.7 °C) are measured for varying SSS, ...

Journal: :حفاظت گیاهان 0
یغمایی یغمایی کریم پور کریم پور

abstract this study was mainly conducted due to importance of plant manna and their production process regarding pharmaceutical use. therefore, the behaviourial characteristics of spittlebug poophilus nebulosus leth on alhagi persarum boiss & buhse camel thron plant in torbate jam region, khorasan razavi state were assessed during 2006 and 2007. the bug’s discharge after feeding on the camel th...

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.

Journal: :Journal of Applied Polymer Science 2021

Free-moving meat exudate in plastic packaging is perceived as unhygienic and unattractive by consumers. It facilitates the deterioration of quality safety, increasing waste loss. This work discusses an innovative approach scavenging within commercial packaging. involves improving liquid absorption capabilities open-cell polystyrene (PS) foam through application oxygen plasma treatment rather th...

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...

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