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   Articles with "source" as a keyword



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Association Between Time to Source Control in Sepsis and 90-Day Mortality.

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recommendations! Published in 2022 at "JAMA surgery"

DOI: 10.1001/jamasurg.2022.2761

Abstract: Importance Rapid source control is recommended to improve patient outcomes in sepsis. Yet there are few data to guide how rapidly source control is required. Objective To determine the association between time to source control… read more here.

Keywords: source control; source; day mortality; sepsis ... See more keywords
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Evaluation of deep moonquake source parameters: Implication for fault characteristics and thermal state

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016je005147

Abstract: While deep moonquakes are seismic events commonly observed on the Moon, their source mechanism is still unexplained. The two main issues are poorly constrained source parameters and incompatibilities between the thermal profiles suggested by many… read more here.

Keywords: moonquake source; source; source parameters; deep moonquake ... See more keywords
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Seismic interferometry using persistent noise sources for temporal subsurface monitoring

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recommendations! Published in 2017 at "Geophysical Research Letters"

DOI: 10.1002/2017gl075342

Abstract: In passive source seismology, seismic interferometry typically refers to the cross-correlation of ambient noise to construct an estimate of the Green's function between sensors. The presence of persistent natural and/or anthropogenic sources can bias or… read more here.

Keywords: using persistent; seismic interferometry; source; noise ... See more keywords
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Ambient Seismic Source Inversion in a Heterogeneous Earth: Theory and Application to the Earth's Hum

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jb014738

Abstract: The sources of ambient seismic noise are extensively studied both to better understand their influence on ambient noise tomography and related techniques, and to infer constraints on their excitation mechanisms. Here we develop a gradient-based… read more here.

Keywords: inversion; source; ambient seismic; earth hum ... See more keywords
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A cautionary tale: a study of a methane enhancement over the North Sea

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jd026626

Abstract: Airborne measurements of a methane (CH4) plume over the North Sea from August 2013 are analyzed. The plume was only observed downwind of circumnavigated gas fields, and three methods are used to determine its source.… read more here.

Keywords: north sea; sea; source; gas ... See more keywords
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Estimation of optimal dispersion model source parameters using satellite detections of volcanic ash

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jd026676

Abstract: In this paper we demonstrate how parameters describing the geometry of the volcanic ash source for a particular volcanic ash dispersion model (HYSPLIT) may be inferred by the use of satellite data and multiple trial… read more here.

Keywords: source; volcanic ash; dispersion model;
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High‐frequency monitoring of catchment nutrient exports reveals highly variable storm event responses and dynamic source zone activation

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jg003904

Abstract: Storm events can drive highly variable behaviour in catchment nutrient and water fluxes, yet short-term event dynamics are frequently missed by low resolution sampling regimes. In addition, nutrient source zone contributions can vary significantly within… read more here.

Keywords: source zone; storm; high frequency; source ... See more keywords
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Real‐time, ray casting‐based scatter dose estimation for c‐arm x‐ray system

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recommendations! Published in 2017 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.12036

Abstract: Objectives Dosimetric control of staff exposure during interventional procedures under fluoroscopy is of high relevance. In this paper, a novel ray casting approximation of radiation transport is presented and the potential and limitation vs. a… read more here.

Keywords: ray casting; source; monte carlo; carlo simulation ... See more keywords
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HDR brachytherapy in vivo source position verification using a 2D diode array: A Monte Carlo study

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recommendations! Published in 2018 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.12360

Abstract: Abstract Purpose This study aims to assess the accuracy of source position verification during high‐dose rate (HDR) prostate brachytherapy using a novel, in‐house developed two‐dimensional (2D) diode array (the Magic Plate), embedded exactly below the… read more here.

Keywords: magic plate; source; verification; source position ... See more keywords
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Evaluation of the dosimetric impact of manufacturing variations for the INTRABEAM x‐ray source

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recommendations! Published in 2020 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.12809

Abstract: Abstract Introduction INTRABEAM x‐ray sources (XRSs) have distinct output characteristics due to subtle variations between the ideal and manufactured products. The objective of this study is to intercompare 15 XRSs and to dosimetrically quantify the… read more here.

Keywords: impact manufacturing; depth; source; applicator ... See more keywords
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Development of a virtual source model for Monte Carlo-based independent dose calculation for varian linac.

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recommendations! Published in 2022 at "Journal of applied clinical medical physics"

DOI: 10.1002/acm2.13556

Abstract: Monte Carlo (MC) independent dose calculations are often based on phase-space files (PSF), as they can accurately represent particle characteristics. PSF generally are large and create a bottleneck in computation time. In addition, the number… read more here.

Keywords: monte carlo; virtual source; calculation; independent dose ... See more keywords