Results 251 to 260 of about 4,004,190 (296)

Efficient and Economical Filtration

British Journal of Radiology: BIR Section, 1925
B y A R T H U R W . E R S K I N E , M . D . , Cedar Rapids , Iowa. T H E O R E T I C A L L Y , it is possible to determine what filters approach A most nearly the ideal of absorbing the maximum of long waves and the minimum of short ones, by interposing various materials in the path of a beam of X rays, produced under fixed conditions, and then by ...
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Filtration Efficiency of Submicrometer Filters

Industrial & Engineering Chemistry Research, 2013
Meltblown technology has recently gained a lot of attention in the production of submicrometer fiber webs with a fiber size less than 1 μm. Single layer polypropylene meltblown webs with fiber diameters ranging from 520 to 2100 nm were produced using nano and micro dies.
Muralidhar Lalagiri, Gajanan Bhat, Vinitkumar Singh, Siva Parameswaran, Ronald J. Kendall, Seshadri Ramkumar   +5 more
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Bacterial Filtration Efficiency

Journal of Clinical Microbiology and Infectious Diseases
Background: The specifications of medical masks are different from those of non-medical masks although they may appear similar. Currently, the Indonesian Government through the Ministry of Health has made efforts to tighten supervision of the quality of medical mask products circulating in the community. Bacterial Filtration Efficiency (BFE) testing is
Lany Stevina, Conny Riana Tjampakasari
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The efficiency of an air filtration system in the hospital ward

International Journal of Environmental Health Research, 2006
A study was conducted to ascertain the efficiency and effectiveness of an air filtration system (Electromedia Model 100C, Clean Air UK, UK) in the hospital ward. The sampling was conducted using a portable Surface Air Sampler (Cherwell Laboratories, Bicester, UK) in conjunction with settle plates.
McLarnon, N., Edwards, G., Burrow, J., MacLaren, W., Aidoo, K., Hepher, M.   +5 more
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Impact of the Filter Roughness on the Filtration Efficiency for Aluminum Melt Filtration

2019
Melt cleanliness is essential for high quality aluminum production. The main cleanliness criteria are the content of dissolved hydrogen as well as the content of non-metallic inclusions. The latter may impair the castability of the aluminum melt as well as the mechanical properties and the machinability of the aluminum castings.
Claudia Voigt, Björn Dietrich, Mark Badowski, Margarita Gorshunova, Gotthard Wolf, Christos G. Aneziris   +5 more
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Advanced Compact Filtration (ACF): An Efficient and Flexible Filtration Process

2016
Deep bed filters are well known not only for providing efficient inclusion removal that is required for critical products, but also for their relatively high metal hold-up. In multi-alloy casthouses, filtration costs associated with deep bed filters can be considerable due to filter media replacement and scrap metal generation at alloy changes.
Francis Breton, Peter Waite, Patrice Robichaud   +2 more
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Filtration Efficiency of Functionalized Ceramic Foam Filters for Aluminum Melt Filtration

Metallurgical and Materials Transactions B, 2016
The influence of filter surface chemistry on the filtration efficiency of cast aluminum alloys was evaluated for four different filter coating compositions (Al2O3—alumina, MgAl2O4—spinel, 3Al2O3·2SiO2—mullite, and TiO2—rutile). The tests were conducted on a laboratory scale with a filtration pilot plant, which facilitates long-term filtration tests (40
Claudia Voigt, Eva Jäckel, Fabio Taina, Tilo Zienert, Anton Salomon, Gotthard Wolf, Christos G. Aneziris, Pierre Le Brun   +7 more
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Depth filtration: Efficient separation processes through depth filtration

Filtration + Separation, 2011
One of the main filtration mechanisms, depth filtration is a vital part of the separation spectrum, capable of very fine filtration. Ken Sutherland looks at the current situation concerning depth filtration and reviews recent developments.
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Filtration Efficiency of Surgical Masks: A New Method of Evaluation

Australian and New Zealand Journal of Surgery, 1968
An apparatus has been constructed for the purpose of evaluating the efficiency of surgical masks. The apparatus is described, and the results of the investigation of various surgical mask materials are given.
S D, Rubbo, L R, Abbott
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Filtration efficiency determination of a novel filtration technique utilizing liquid bridges

2023
For this study, we consider a filtration system consisting of a periodic arrangement of PEG liquid columns formed between two glass slides; a distribution of water particles moves past these columns and the overall filtration efficiency of the system is determined.
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