Results 51 to 60 of about 382,494 (374)

Simulating the γ-ray and neutron attenuation properties of lithium borate glasses doped barite: efficient and deterministic analysis using relevant simulation codes

Journal of Materials Research and Technology, 2022
In the present paper, we report a comprehensive theoretical study dealing with γ -ray, fast and thermal neutrons shielding features of compositionally graded Pb-free lithium borate glasses doped barite: (B2O3)(0.6)(BaSO4)(x)(Li2O)(0.4-x).
Norah A.M. Alsaif, Najeh Rekik, Youssef Elmahroug, G. Lakshminarayana, Umer Farooq, Hira Affan, A. Wahab M.A. Hussein, Chedly Souga   +7 more
doaj   +1 more source

Evaluation of nine 3D printing materials as tissue equivalent materials in terms of mass attenuation coefficient and mass density

, 2017
Article history: Received 8 February 2017 Received in revised form 2 August 2017 Accepted 4 August 2017 The main objective of this study is to evaluate the mass attenuation coefficients of nine 3D printing materials and to verify the best 3D printing ...
et al. Alssabbagh
semanticscholar   +1 more source

CleAir monitoring system for particulate matter. A case in the Napoleonic Museum in Rome [PDF]

, 2017
Monitoring the air particulate concentration both outdoors and indoors is becoming a more relevant issue in the past few decades. An innovative, fully automatic, monitoring system called CleAir is presented.
Bonacquisti, V., Chianese, A., Di Michele, M., Fazio, E., Frasca, F., Siani, Anna Maria   +5 more
core   +1 more source

Effective density and mass attenuation coefficient for building material in Brazil

Applied Radiation and Isotopes, 2006
This paper presents values for density and mass attenuation coefficient of building materials commonly used in Brazil. Transmission measurements were performed to provide input information for simulations with MCNP4B code. The structure for the clay bricks was simulated as a mix of all material layers and an effective density determined.
/Salinas, I. C. P., Conti, C. C., Lopes, R. T.   +2 more
openaire   +4 more sources

Model Test Study on Cylindrical Blasting Stress Wave Propagation across Jointed Rock Mass with Different Initial Stresses

Advances in Civil Engineering, 2020
In the drilling and blasting excavation of underground rock mass, the stress wave produced by the blasting holes usually propagates in the form of cylindrical wave, while the rock mass surrounding the underground engineering is initially subjected to the
Qian Dong, XinPing Li, JunHong Huang
doaj   +1 more source

Sound Propagation in Gas-Vapor-Droplet Suspensions with Evaporation and Nonlinear Particle Relaxation [PDF]

, 2012
The Sound attenuation and dispersion in saturated gas-vapor-droplet mixture in the presence of evaporation has been investigated theoretically. The theory is based on an extension of the work of Davidson to accommodate the effects of nonlinear particle ...
Kandula, Max
core   +1 more source

Quenching of hadron spectra in DIS on nuclear targets [PDF]

, 2003
The multiple scatterings incurred by a hard quark produced in a nuclear medium induce the emission of soft gluons which carry a fraction of the quark energy and eventually affect the hadronization process.
Accardi, Arleo, Arleo, Arleo, Arneodo, Baier, Baier, Baier, Baier, Bialas, Bialas, Cacciari, CTEQ, CTEQ, EMC, EMC, F. Arleo, Glück, Guo, Gyulassy, Gyulassy, HERMES, Jaffe, Kretzer, Martin, Osborne, Salgado, Wang, Wang, Wiedemann   +29 more
core   +1 more source

Exam‐level analysis of lecture capture viewing and student exam performance

FEBS Open Bio, EarlyView.
This study asks how lecture capture relates to exam performance in biology courses with three noncumulative exams. Mixed‐effects modeling separated between‐students from within‐student effects on exam %. Students who watched more recordings earned higher grades, but viewing spikes above a student's own mean, consistent with cramming, predicted small ...
Kirk Hillsley
wiley   +1 more source

Microscopic Approach to Analyze Solar-Sail Space-Environment Effects

, 2008
Near-sun space-environment effects on metallic thin films solar sails as well as hollow-body sails with inflation fill gas are considered. Analysis of interaction of the solar radiation with the solar sail materials is presented.
Abramov, Berger, Bethe, Causey, Gregory L. Matloff, Hubbell, Janhunen, Jones, Kezerashvili, Kezerashvili, Kezerashvili, Koblik, Matloff, Matloff, McInnes, McInnes, Michalsky, Murphy, Obanian, Roman Ya. Kezerashvili, Salama, Strobl, Vulpetti   +22 more
core   +1 more source

The Associations Between Chronic Active Lesions and White Matter Disease: A 7 Tesla Imaging Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background The relationship between paramagnetic rim lesions (PRLs) and surrounding normally appearing white matter (NAWM) disease, potentially contributory to the associations seen between PRLs and clinical impairment, is underexplored. Objectives To assess whether PRLs correlate with a greater degree of NAWM injury in early MS.
Ellie McCluey, Ahmad A. Toubasi, Jiacheng Wang, Habeeb F. Kazimuddin, Taegan Vinarsky, Caroline Gheen, Carynn Koch, Zachery Rohm, Bryan Hernandez, Margareta A. Clarke, Rachael Cheek, Rozita Khalili, Chaoyang Jin, Victoria Lim, John Kramer, Junzhong Xu, Ipek Oguz, Francesca Bagnato   +17 more
wiley   +1 more source