Results 11 to 20 of about 4,004,190 (296)

The effect of combination electrospun and meltblown filtration materials on their filtration efficiency [PDF]

open access: yesAIP Conference Proceedings, 2015
Filtration materials prepared by combination of electrospun nanofibers and meltblown microfibers (both fixed on polypropylene spunbond supports) were characterized from the point of view of their filtration efficiency in ultrafine particles separation.
Kimmer, D.   +4 more
openaire   +5 more sources

Filtration efficiency of meltblown webs [PDF]

open access: yes, 2016
Nonwoven fabrics are made from fibers and used across a wide range of applications and products. They are high-tech, innovative and versatile products, indispensable for a lot of application nowadays. Filtration is one of the fastest growing segments in the nonwovens industry, and with the necessity of replacing fiberglass for polymer materials keeping
Pereira, Diana Filipa Fernandes
core   +4 more sources

Practical Modeling of Filter Filtration Efficiency [PDF]

open access: yesContributions to Tobacco and Nicotine Research, 1990
A simple and general mathematical model has been developed to calculate filter-filtration efficiency, which is based on practical design parameters: pressure drop, filter dimension, flow rate, and filament denier.
Kao J
doaj   +2 more sources

Efficiency Investigation of Coffee Production Waste Drying by Filtration Method

open access: yesЖурнал інженерних наук
This article presents the results of determining the technologically feasible parameters of filtration drying of coffee production waste based on experimental data on the kinetics of material drying and the hydrodynamics of thermal agent filtration.
Oleksandr Ivashchuk   +2 more
doaj   +2 more sources

Bacterial Filtration Efficiency of Different Masks [PDF]

open access: yesStrojniški vestnik - Journal of Mechanical Engineering, 2022
Face coverings, such as surgical masks and respirators, have an important role in preventing bacterial and viral transmission, especially during a global pandemic like COVID-19. Therefore, to secure their availability, new manufacturers and the use of novel materials must be encouraged.
Košir, Tamara   +3 more
openaire   +1 more source

Ultra low-pressure filtration system for energy efficient microalgae filtration [PDF]

open access: yesHeliyon, 2021
Microalgae-based products have gained growing interest leading to an increase in large-scale cultivation. However, the high energy associated with microalgae harvesting becomes one of the bottlenecks. This study evaluated an energy-efficient microalga harvesting via ultra-low-pressure membrane (ULPM) filtration (
Wan Nur Aisyah Wan Osman   +7 more
openaire   +4 more sources

The role of tortuosity in filtration efficiency: A general network model for filtration [PDF]

open access: yesJournal of Membrane Science, 2020
Filters are composed of a complex network of interconnected pores each with tortuous paths. We present a general network model to describe a filter structure comprising a random network of interconnected pores, relaxing traditional assumptions made with simplified theoretical models.
Griffiths, IM   +4 more
openaire   +2 more sources

An Efficient Representation for Filtrations of Simplicial Complexes [PDF]

open access: yesProceedings of the Twenty-Eighth Annual ACM-SIAM Symposium on Discrete Algorithms, 2017
A filtration over a simplicial complex K is an ordering of the simplices of K such that all prefixes in the ordering are subcomplexes of K . Filtrations are at the core of Persistent Homology, a major tool in Topological Data Analysis.
Jean-Daniel Boissonnat   +1 more
openaire   +8 more sources

Electrospun Nanofibrous Membranes for Air Filtration: A Critical Review

open access: yesCompounds, 2023
Air filtration is an urgent global need because, in many countries and regions, the high concentration of inhalable suspended particles in the air is causing irreversible damage to human health.
Maria Federica De Riccardis
doaj   +1 more source

Size-Dependent Filtration Efficiency of Alternative Facemask Filter Materials. [PDF]

open access: yesMaterials (Basel), 2021
The use of facemasks is proven to mitigate the spread of the coronavirus and other biological agents that cause disease. Various forms of facemasks, made using different materials, are being used extensively, and it is important to determine their ...
Dhanraj DIA   +9 more
europepmc   +2 more sources

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