نتایج جستجو برای: ceramic foam

تعداد نتایج: 38082  

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: :Materials Letters 2022

• Water disinfection with geopolymer composite foam is reported for the first time. Geopolymer and Ag 0 -bentonite formed matrix dispersed phases, respectively. Disinfection efficiency against E. coli enterococci was promising ?1 d. Leaching of Na, Al, Si, Ag, pH remained within drinking water guideline values. Geopolymers resemble conventional ceramics but can be manufactured at near-ambient t...

Journal: :Energies 2023

A self-sustained porous burner without a sprayed atomizer was built for diesel oil. It consisted of metal fiber felt as an evaporator upstream and ceramic foam emitter downstream. The liquid fuel underwent film boiling in the rapidly evaporated by heat recirculated from to through intense irradiative flux. effect structure its installation location on performance investigated. results indicated...

Journal: :Clinical orthopaedics and related research 2012
Manny Porat Javad Parvizi Peter F Sharkey Keith R Berend Adolph V Lombardi Robert L Barrack

BACKGROUND Few large series of hard bearing surfaces have reported on reasons for early failure. A number of unique mechanisms of failure, including fracture, squeaking, and adverse tissue reactions, have been reported with these hard bearing surfaces. However, the incidence varies among the published studies. QUESTIONS/PURPOSES To confirm the incidences, we identified the etiologies of early...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2015
Bjarni Elvar Pjetursson Irena Sailer Nikolay Alexandrovich Makarov Marcel Zwahlen Daniel Stefan Thoma

OBJECTIVE To assess the 5-year survival of metal-ceramic and all-ceramic tooth-supported fixed dental prostheses (FDPs) and to describe the incidence of biological, technical and esthetic complications. METHODS Medline (PubMed), Embase and Cochrane Central Register of Controlled Trials (CENTRAL) searches (2006-2013) were performed for clinical studies focusing on tooth-supported FDPs with a m...

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...

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