Results 211 to 220 of about 167,160 (259)
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Filtration Efficiency of Functionalized Ceramic Foam Filters for Aluminum Melt Filtration
Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 2016The 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
Tilo Zienert +2 more
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Treatment Efficiency and Filtration Rate of a Horizontal Sand Filtration System
Asia Pacific Journal of Public Health, 1990The purpose of this study was to establish acceptable criteria for a horizontal sand filtration (HSF) system that are suitable for the design of community water supply units in rural areas. Two laboratory scales of HSF were constructed and tested for their filtration rates and treatment efficiency in Visetchaicharn District of Angthong Province ...
U, Kompayak, T, Dejthai
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Efficient Graph Processing with Invalid Update Filtration
IEEE Transactions on Big Data, 2021Most of existing graph processing systems essentially follow pull-based computation model to handle compute-intensive parts of graph iteration for high parallelism. Considering all vertices and edges are processed in each iteration, pull model may suffers from a large number of invalid (vertex/edge) operations that do not contribute to graph ...
Long Zheng 0003 +6 more
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Factors Affecting the Efficiency of Filtration Leukapheresis
Transfusion, 1977Continuous flow filtration leukapheresis was performed on normal volunteer donors with and without intravenous administration of dexamethasone. Although granulocyte counts were increased in steroid treated donors and almost 20 per cent more cells were presented to the filters, the final yield of granulocytes was slightly decreased and the efficiency of
A J, Katz, J, Houx, E E, Morse
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Air filtration: Evaluating filtration efficiency
Filtration + Separation, 2012Filters are increasingly being more widely used in public buildings to remove air pollutants and understanding their effectiveness is crucial. Tony Fedel of Kimberly-Clark Professional Filtration suggests looking beyond the Minimum Efficiency Reporting Value for a better way to evaluate filtration efficiency.
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Textile Research Journal, 2021
Traditional filtration media composed of fibers with sizes on the micrometer scale have difficulty filtering particles a little smaller than 300 nm. Even though nanofibrous materials are able to capture these particles and can have excellent filtration efficiency, their widespread use continues to be inhibited by several obstacles,
Adéla Kotzianová +5 more
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Traditional filtration media composed of fibers with sizes on the micrometer scale have difficulty filtering particles a little smaller than 300 nm. Even though nanofibrous materials are able to capture these particles and can have excellent filtration efficiency, their widespread use continues to be inhibited by several obstacles,
Adéla Kotzianová +5 more
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Efficient and Economical Filtration
British Journal of Radiology: BIR Section, 1925B 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, 2013Meltblown 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 +5 more
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Bacterial Filtration Efficiency
Journal of Clinical Microbiology and Infectious DiseasesBackground: 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, 2006A 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. +5 more
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