Articles with "shield" as a keyword



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Geometry optimization of electrically floating PET inserts for improved RF penetration for a 3 T MRI system

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Published in 2018 at "Medical Physics"

DOI: 10.1002/mp.13132

Abstract: PURPOSE An electrically floating radio frequency (RF) shielded PET insert with individual PET detectors shielded by separate Faraday cages enables the MRI built-in body RF coil to be used at least as an RF transmitter,… read more here.

Keywords: pet; shield; field; geometry ... See more keywords
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A Novel Buccal Shield to Prevent Cheek Biting in Post-surgical OSMF Patients

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Published in 2020 at "Journal of Maxillofacial and Oral Surgery"

DOI: 10.1007/s12663-020-01390-3

Abstract: Oral submucous fibrosis (OSMF) is an oral potentially malignant lesion characterized by inflammation and progressive fibrosis of the submucosal tissues, resulting in marked rigidity and trismus [1]. Severe trismus and pain due to common dental… read more here.

Keywords: cheek biting; shield; post surgical; osmf patients ... See more keywords
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Performance Assessment of Shield Tunnel Damaged by Shield Shell Extrusion During Construction

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Published in 2019 at "International Journal of Civil Engineering"

DOI: 10.1007/s40999-018-0354-4

Abstract: A shield tunnel can be damaged by shield shell extrusions, such as shield tunnel floating, which may cause contact (even a squeezing action) between the shield tunnel and shield shell. To fully analyze this problem,… read more here.

Keywords: shield; shield shell; tunnel damaged; damaged shield ... See more keywords
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Utilizing IFC for shield segment assembly in underground tunneling

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Published in 2018 at "Automation in Construction"

DOI: 10.1016/j.autcon.2018.05.016

Abstract: Abstract The shield method is a common approach used for subway tunnel excavation. A critical function of the shield method is the segment assembly process. It is, therefore, imperative to have access to information to… read more here.

Keywords: information; utilizing ifc; construction; shield ... See more keywords
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Thermal shield of the zero-boil-off cryostat for a 1.5T magnetic resonance imaging magnet

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Published in 2021 at "Cryogenics"

DOI: 10.1016/j.cryogenics.2021.103301

Abstract: Abstract The image quality in a MRI magnet greatly depends on the mechanical, thermal and electromagnetic performance of the thermal shield in presence of any time varying field. A detailed analysis on the mechanical resonance… read more here.

Keywords: thermal shield; bore tube; magnet; shield ... See more keywords
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Upper mantle anisotropy inferred from shear wave splitting beneath the Eastern Indian Shield region

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Published in 2018 at "Geoscience Frontiers"

DOI: 10.1016/j.gsf.2017.12.003

Abstract: Abstract We estimate the shear wave splitting parameters vis-a-vis the thicknesses of the continental lithosphere beneath the two permanent seismic broadband stations located at Dhanbad (DHN) and Bokaro (BOKR) in the Eastern Indian Shield region.… read more here.

Keywords: shield; shear wave; shield region; wave splitting ... See more keywords
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Ballistic performance of hybrid nonwoven/woven polyethylene fabric shields

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Published in 2018 at "International Journal of Impact Engineering"

DOI: 10.1016/j.ijimpeng.2017.08.011

Abstract: Abstract The ballistic response against small projectiles of a hybrid laminate made up of a front layer of a needle-punched nonwoven fabric and several layers of a woven fabric was analyzed from the experimental and… read more here.

Keywords: ballistic performance; shield; performance hybrid; nonwoven woven ... See more keywords
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Nature and evolution of the Precambrian lithosphere beneath the Arabian Shield of Saudi Arabia deduced from a suite of xenoliths from the Harrat Hutaymah Cenozoic volcanic field

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Published in 2019 at "Lithos"

DOI: 10.1016/j.lithos.2019.06.012

Abstract: Abstract Harrat Hutaymah is a Cenozoic small-volume volcanic field in the northeastern margin of the Arabian Shield, Saudi Arabia. Mantle and lower-crustal xenoliths have been collected from the various tuff ring and maar deposits. Based… read more here.

Keywords: harrat hutaymah; gabbro diorite; shield; rock ... See more keywords
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Effect of mineral admixtures in concrete on biological shield wall radiation in APR1400

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Published in 2018 at "Progress in Nuclear Energy"

DOI: 10.1016/j.pnucene.2018.04.022

Abstract: Abstract Although many researchers investigated the effect of radiation on concrete mechanical properties, a little attention was given to the effect of concrete mix design on the radio-activation of biological shield wall, which could be… read more here.

Keywords: shield; concrete mix; effect; shield wall ... See more keywords
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Evaluation of fetal, medical and occupational exposure in ERCP procedures using Monte Carlo simulation and virtual anthropomorphic phantoms

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Published in 2020 at "Radiation Physics and Chemistry"

DOI: 10.1016/j.radphyschem.2020.109113

Abstract: Abstract In this study, computational modeling was applied to evaluate medical and occupational exposure, to ionizing radiation, during the Endoscopic Retrograde Cholangiopancreatography (ERCP) procedure of a pregnant woman in the second gestational trimester. The fetal… read more here.

Keywords: shield; medical occupational; virtual anthropomorphic; occupational exposure ... See more keywords
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Experimental Evaluation of Aging Characteristics of EPDM as a Sealant for Undersea Shield Tunnels

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Published in 2020 at "Journal of Materials in Civil Engineering"

DOI: 10.1061/(asce)mt.1943-5533.0003242

Abstract: AbstractThe degradation mechanism of ethylene–propylene–diene monomer (EPDM), when used as a sealant material for shield tunnels, must be known to assess of the service life of sealant gaskets. Thi... read more here.

Keywords: experimental evaluation; shield; characteristics epdm; shield tunnels ... See more keywords