نتایج جستجو برای: air filtration

تعداد نتایج: 242582  

Journal: :Annals of chemical science research 2023

Annals of Chemical Science Research Progressive Indoor Air Quality Management Using Nanocomposites Derived Filtration Media Ayesha Kausar1,2,3*, Ishaq Ahmad1,2,3, Zhu Tianle4 and Eisa MH5 1NPU-NCP joint international research center on Advanced Nanomaterials Defects engineering, Northwestern Polytechnical University, China 2UNESCO-UNISA Africa Chair in Nano-sciences/Nanotechnology, iThemba LABS...

2017
M. Kucukali Ozturk

Air permeability plays an important role for applications such as filtration, thermal and acoustic insulation. The study discussed in this paper was conducted in an attempt to investigate air permeability property of various combinations of nonwovens. The PROWHITE air permeability tester was used for the measurement of the air permeability of the samples in accordance with the relevant standard...

Journal: :iranian journal of public health 0
j. nouri h.amirbeighi

the most important environmental pollutant in steel industry is air pollution due to the process of its products. optimise sitting for this industry, in a great extend will prevent pollutants and emissions. khorasan steel company is located near some populous villages and three rivers. it is necessary to perform an investigation for providing abatement and control of air pollution, in time of p...

Journal: :Journal of applied physiology 1998
W Lin E Jacobs R M Schapira K Presberg R M Effros

The stop-flow approach was used to investigate where filtration occurs in the pulmonary vasculature after elevation of left atrial pressure and aspiration of HCl. Rat lungs were perfused for 11 min at zero left atrial pressures, and then flow was stopped for 10 min and left atrial pressures were increased to 20 cmH2O. Thereafter, 3HOH was instilled into the air spaces, and the pulmonary vascula...

Journal: :Applied microbiology 1958
M TORLONI W BORZANI

Certain important industrial fermentations require substantial amounts of sterile air that are commonly obtained by filtration through beds of fibers, granular solids, or specially prepared filter media (Gaden and Humphrey, 1956). To control the efficiency of such sterilization filters, several methods to estimate the microorganism content of the air have been proposed. These methods can be cla...

Journal: :The Journal of hospital infection 2007
D G Falvey A J Streifel

Airborne fungal samples were collected on a monthly basis for 10 years, from 1995 to 2005, at a tertiary university hospital. Paired samples were cultured at 25 and 37 degrees C. Data were interpreted according to the air filtration systems serving each location. Samples cultured at 37 degrees C from the patient care areas had a mean recovery of 18% of the mean recovery from outdoor air (22 ver...

2010
Chee Huei Lee Nick Johnson Jaroslaw Drelich Yoke Khin Yap

Vertically-aligned multi-walled carbon nanotubes (CNTs) were grown on stainless steel (SS) mesh by thermal chemical vapor deposition with a diffusion barrier of Al2O3 film. These three-dimensional porous structures (SS-CNT meshes) were found to be superhydrophobic and superoleophilic. Water advancing contact angles of 145–150 were determined for these SS-CNT meshes in air and oil (gasoline, iso...

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