Results 11 to 20 of about 37,367 (251)

Meckel’s Diverticulum in Children: A Monocentric Experience and Mini-Review of Literature

open access: yesChildren, 2022
Vitelline duct anomalies (VDA, including Meckel’s diverticulum (MD)) result from failed embryologic obliteration. This study aimed for characteristics in symptomatic versus asymptomatic VDA, analyzing clinico-laboratory data from 73 children, aged 1 day ...
Matthias Nissen   +4 more
doaj   +1 more source

Contrasting responses of forest growth and carbon sequestration to heat and drought in the Alps

open access: yesEnvironmental Research Letters, 2022
Climate change is expected to increase both the frequency and the intensity of climate extremes, consequently increasing the risk of forest role transition from carbon sequestration to carbon emission. These changes are occurring more rapidly in the Alps,
Ludovica Oddi   +7 more
doaj   +1 more source

Numerical Evaluation of a Novel Vertical Drop Airflow System to Mitigate Droplet Transmission in Trains

open access: yesAtmosphere, 2022
Owing to the outbreak of COVID-19, researchers are exploring methods to prevent contact and non-contact infections that occur via multiple transmission routes.
Sungho Yun, Jae-Chul Kim
doaj   +1 more source

Critical success factors of total quality management in autonomous driving business models

open access: yesCogent Engineering, 2020
Autonomous driving is undoubtedly one of the most strategically relevant and financially promising developing industries. The requirements for autonomous driving systems’ reliability are dramatically higher than in the driver-based car industry.
Zinan Wang, Reinhard Meckl
doaj   +1 more source

Using UAV Imagery to Detect and Map Woody Species Encroachment in a Subalpine Grassland: Advantages and Limits

open access: yesRemote Sensing, 2021
Woody species encroachment on grassland ecosystems is occurring worldwide with both negative and positive consequences for biodiversity conservation and ecosystem services.
Ludovica Oddi   +6 more
doaj   +1 more source

Catalogue of 55-80 MeV solar proton events extending through solar cycles 23 and 24 [PDF]

open access: yes, 2017
We present a new catalogue of solar energetic particle events near the Earth, covering solar cycle 23 and the majority of solar cycle 24 (1996-2016), based on the 55-80 MeV proton intensity data gathered by the SOHO/ERNE experiment.
Crosby, Norma   +11 more
core   +1 more source

Evaluation of the Weak Constraint Data Assimilation Approach for Estimating Turbulent Heat Fluxes at Six Sites

open access: yesRemote Sensing, 2018
A number of studies have estimated turbulent heat fluxes by assimilating sequences of land surface temperature (LST) observations into the strong constraint-variational data assimilation (SC-VDA) approaches.
Xinlei He   +8 more
doaj   +1 more source

Numerical modelling of heat transfer and experimental validation in Powder-Bed Fusion with the Virtual Domain Approximation [PDF]

open access: yes, 2019
Among metal additive manufacturing technologies, powder-bed fusion features very thin layers and rapid solidification rates, leading to long build jobs and a highly localized process.
Badia, Santiago   +9 more
core   +2 more sources

A variational inequality reformulation of a congested transit assignment model by Cominetti, Correa, Cepeda, and Florian [PDF]

open access: yes, 2012
In the paper by Cominetti and Correa (2001) [Common-lines and passenger assignment in congested transit networks. Transportation Science 35 (3), pp 250-267], an extension to the common-lines problem for general multidestination networks under congestion ...
Codina Sancho, Esteve
core   +2 more sources

Mathematical Derivation of Chiral Anomaly in Lattice Gauge Theory with Wilson's Action [PDF]

open access: yes, 1997
Chiral U(1) anomaly is derived with mathematical rigor for a Euclidean fermion coupled to a smooth external U(1) gauge field on an even dimensional torus as a continuum limit of lattice regularized fermion field theory with the Wilson term in the action.
Hattori, Tetsuya, Watanabe, Hiroshi
core   +2 more sources

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