Results 1 to 10 of about 1,780,158 (303)

Enhanced protection face masks do not adversely impact thermophysiological comfort. [PDF]

open access: yesPLoS ONE, 2022
The World Health Organization has advocated mandatory face mask usage to combat the spread of COVID-19, with multilayer masks recommended for enhanced protection.
Farzan Gholamreza   +3 more
doaj   +2 more sources

Peptidoglycan-Free Bacterial Ghosts Confer Enhanced Protection against Yersinia pestis Infection [PDF]

open access: yesVaccines, 2021
To develop a modern plague vaccine, we used hypo-endotoxic Yersinia pestis bacterial ghosts (BGs) with combinations of genes encoding the bacteriophage ɸX174 lysis-mediating protein E and/or holin-endolysin systems from λ or L-413C phages.
Svetlana V. Dentovskaya   +14 more
doaj   +2 more sources

An enhanced protection scheme for power transformers integrating alpha plane analysis [PDF]

open access: yesScientific Reports
Power transformers play a critical role in electric power systems by facilitating connections between subsystems with different voltage levels. Ensuring their reliable operation and protection against faults is essential for maintaining network stability.
Ahmed S. Sayed   +4 more
doaj   +2 more sources

Corrosion Perforation Failure Analysis for a Natural Gas Pipeline [PDF]

open access: yesCailiao Baohu, 2021
In order to account for the corrosion perforation failure cause of a natural gas transmission pipelines, and determine the main factors inducing gas pipeline corrosion failures, scanning electron microscopy(SEM), energy dispersive spectroscopy(EDS), XRD ...
CHEN Chao, GUO Yu-jie, SUN Hai-jiao, YU Yan-zhao, LI Zi-mo, ZHANG Jiang-jiang
doaj   +1 more source

Application of Oilfield Casing Cathodic Protection Technology [PDF]

open access: yesCailiao Baohu, 2021
Casing corrosion is a common problem in oil and gas production. Generally, the casing is buried deep in the ground, and the underground environment is more complicated.
LIU Li, LIU Jie, ZHANG Yong - qiang, YANG Zhi - gang, LV Shuo, TA Chuan, HUANG Guo - sheng
doaj   +1 more source

Characterization and Corrosion Behavior of High-Nitrogen HP-13Cr Stainless Steel in CO2 and H2S Environment

open access: yesInternational Journal of Electrochemical Science, 2021
The effect of nitriding on the corrosive properties of HP-13Cr stainless steel in extremely aggressive environmental conditions was investigated. The composition, structure, and corrosion resistance of HP-13Cr before and after adding nitrogen were ...
Bin Liu   +7 more
doaj   +1 more source

Protecting, enhancing, and reviving entanglement [PDF]

open access: yesPhysical Review A, 2008
We propose a strategies not only to protect but also to enhance and revive the entanglement in a double Jaynes-Cummings model. We show that such surprising features arises when Zeno-like measurements are performed during the dynamical process.
Oliveira Jr., J. G.   +2 more
openaire   +2 more sources

Enhancing protection for vulnerable waters [PDF]

open access: yesNature Geoscience, 2017
Governments worldwide do not adequately protect their limited freshwater systems and therefore place freshwater functions and attendant ecosystem services at risk. The best available scientific evidence compels enhanced protections for freshwater systems, especially for impermanent streams and wetlands outside of floodplains that are particularly ...
Irena F. Creed   +24 more
openaire   +3 more sources

An Enhanced Location Scattering Based Privacy Protection Scheme

open access: yesIEEE Access, 2022
Consumer privacy-preserving is a major concern in location-based services (LBSs). The paramount problem in LBSs is the disclosure of a user’s actual location while interacting with the location-based service provider (LSP).
Nisha Nisha   +2 more
doaj   +1 more source

Synthetic RORγt Agonists Enhance Protective Immunity [PDF]

open access: yesACS Chemical Biology, 2016
The T cell specific RORγ isoform RORγt has been shown to be the key lineage-defining transcription factor to initiate the differentiation program of TH17 and TC17 cells, cells that have demonstrated antitumor efficacy. RORγt controls gene networks that enhance immunity including increased IL17 production and decreased immune suppression. Both synthetic
Mi Ra, Chang   +7 more
openaire   +2 more sources

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