Results 31 to 40 of about 1,107,392 (405)

Comparison of X-Ray Attenuation Performance, Antimicrobial Properties, and Cytotoxicity of Silicone-Based Matrices Containing Bi2O3, PbO, or Bi2O3/PbO Nanoparticles [PDF]

open access: yesJournal of Biomedical Physics and Engineering
Background: Application of the nanomaterials to preparing X-ray shields and successfully treating multiresistant microorganisms has attracted great attention in modern life.Objective: This study aimed to prepare flexible silicone-based matrices ...
Baharak Divband   +4 more
doaj   +1 more source

Effect of sneezing on the flow around a face shield

open access: yesThe Physics of Fluids, 2020
A flow analysis around a face shield was performed to examine the risk of virus infection when a medical worker wearing a face shield is exposed to a patient’s sneeze from the front. We ensured a space between the shield surface and the face of the human
Fujio Akagi   +3 more
semanticscholar   +1 more source

Safe Slit-lamp Shield: Maintaining a balance between ergonomics and safety

open access: yesIndian Journal of Ophthalmology, 2020
Since the emergence of COVID pandemic, health workers have been facing major challenges every day. Ophthalmology practice has encountered countless modifications in the practice pattern not to jeopardize patient care and at the same time maintain all ...
Anjali Khadia   +5 more
doaj   +1 more source

A pre-protection method for a pipe-jacking channel over shield tunnels [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
With the improvement of the planning level of underground space, the location of the planned under-crossing tunnel can be known in advance when constructing the upper-span tunnel.
Yunliang Cui   +5 more
doaj   +1 more source

To shield or not to shield: shielding may have unintended effects on patient dose in CT

open access: yesEuropean Radiology, 2023
Abstract Objectives The aim of the patient out-of-plane shield is to reduce the patient radiation dose. Its effect on tube current modulation was evaluated with the out-of-plane shield visible in the localizer but absent in the scan range in chest CT with different CT scanners. Methods
Heli Riitta Sinikka Larjava   +2 more
openaire   +2 more sources

Fibroblasts in the Tumor Microenvironment: Shield or Spear?

open access: yesInternational Journal of Molecular Sciences, 2018
Tumorigenesis is a complex process involving dynamic interactions between malignant cells and their surrounding stroma, including both the cellular and acellular components.
Twana Alkasalias   +3 more
semanticscholar   +1 more source

Electromagnetic losses in magnetic shields for buried high voltage cables [PDF]

open access: yes, 2011
The electromagnetic losses and shielding efficiency of shields for a buried three phase high voltage cable are studied for several shielding configurations.
Koroglu, Selim, Sergeant, Peter
core   +2 more sources

The Concept of a Poly-Functional Ballistic Shield [PDF]

open access: yesProblemy Mechatroniki, 2020
Police and military units are employing the use of additional, portable protection in the form of various types of ballistic shields ever more often. They are not only used for protecting a single operator, but rather entire assault groups or bystanders.
Andrzej ZIŃCZUK
doaj   +1 more source

Optimization of EPB Shield Performance with Adaptive Neuro-Fuzzy Inference System and Genetic Algorithm

open access: yesApplied Sciences, 2019
The prediction of earth pressure balance (EPB) shield performance is an essential part of project scheduling and cost estimation of tunneling projects.
Khalid Elbaz   +4 more
semanticscholar   +1 more source

Mitochondrial Nucleoid: Shield and Switch of the Mitochondrial Genome

open access: yesOxidative Medicine and Cellular Longevity, 2017
Mitochondria preserve very complex and distinctively unique machinery to maintain and express the content of mitochondrial DNA (mtDNA). Similar to chromosomes, mtDNA is packaged into discrete mtDNA-protein complexes referred to as a nucleoid. In addition
S. Lee, Jin Han
semanticscholar   +1 more source

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