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Development of a Dust Respirator by Improving the Half Mask Frame Design [PDF]
International Journal of Environmental Research and Public Health, 2021 Protective efficiency of filtering dust respirators depends on the properties of filter materials from which filters are made and the structure of a half mask frame, which influences how tightly the respirator fits the face. The conducted studies on the “Lepestok 40” dust respirator revealed a large air leakage through the gaps occurring along the ...
Pavlo Saik, Oleg Bazaluk, Oleg Deryugin
exaly +5 more sources
Journal of Cybersecurity and PrivacyFrame-wise steganalysis is a crucial task in low-bit-rate speech streams that can achieve active defense. However, there is no common theory on how to extract steganalysis features for frame-wise steganalysis.
Congcong Sun +3 more
doaj +3 more sources
An individual mask creation using the information model
Trudy Odesskogo Politehničeskogo Universiteta, 2021 The development of individual respiratory protection (masks) during a coronavirus pandemic is relevant. Modern technologies of design and manufacture allow creating masks taking into account individual anatomical features of the person.
Володимир Михайлович Тiгарєв +4 more
doaj +5 more sources
HeLP: Development of occupational protection mask against surgical smoke [PDF]
Revista Brasileira de Enfermagem, 2023 Objectives: to describe a technological innovation in the development of an individual, ergonomic, sustainable and effective occupational respiratory protection mask for workers exposed to surgical smoke.
Helenize Ferreira Lima Leachi +1 more
doaj +1 more source
PROPSED MATERIALS FOR FACE MASKS [PDF]
Journal of the Egyptian Society of Tribology, 2021 In the present work, a face mask is proposed to withstand the severe conditions of increased virus concentration. It consists of two materials, polypropylene (PP) and polymethyl methacrylate (PMMA). Both materials are made of two layers.
A. M. Al-Kabbany, W. Y. Ali, A. S. Ali
doaj +1 more source
On Refinement Masks of Tight Wavelet Frames
Journal of Mathematical Sciences, 2023 11 ...
Lebedeva, E. A., Shcherbakov, I. A.
openaire +2 more sources
Simulation of pedestrian dynamics based withemantic trajectory segmentation [PDF]
E3S Web of Conferences, 2022 The article analyzes the existing methods of information processing necessary for the functioning of the system of intelligent control over unregulated pedestrian crossings based on aggregation and data processing by means of IOT.
Rahmanov Mikhail +3 more
doaj +1 more source
International Journal of Dentistry, 2022 Background. COVID-19 has spread worldwide and caused severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) led to numerous dead cases. However, with the new COVID-19 outbreaks, there is a shortage of personal protective equipment (PPE) especially ...
Suchada Kongkiatkamon +4 more
doaj +1 more source
Advances in Radiation Oncology, 2021 Purpose: The latest version of the Gamma Knife, the Icon, allows for immobilization with a mask in lieu of the traditional frame during stereotactic radiosurgery.
Rodney E. Wegner, MD +9 more
doaj +1 more source
3D Printed frames to enable reuse and improve the fit of N95 and KN95 respirators
BMC Biomedical Engineering, 2021 Background In response to supply shortages caused by the COVID-19 pandemic, N95 filtering facepiece respirators (FFRs or “masks”), which are typically single-use devices in healthcare settings, are routinely being used for prolonged periods and in some ...
Malia McAvoy +21 more
doaj +1 more source