Results 41 to 50 of about 183,468 (342)

The impact of chemical modifications on gamma-ray attenuation properties of some WO3-reinforced tellurite glasses

Open Chemistry, 2023
We report the role of the chemical modifications on various gamma-ray attenuation properties of four different tellurite glasses reinforced through WO3.
ALMisned Ghada, Rabaa Elaf, Sen Baykal Duygu, Ilik Erkan, Kilic Gokhan, Zakaly Hesham M. H., Ene Antoaneta, Tekin Huseyin Ozan   +7 more
doaj   +1 more source

Evaluation of radioprotection properties of some selected ceramic samples

Results in Physics, 2018
In this study, the gamma radiation attenuation features of barium zirconat, barium titanate (IV), magnesium nitride, barium pyrophosphate and silicon carbide were studied using the narrow beam geometrical setup in the energy range of 81 keV–1333 keV. The
M.I. Sayyed, F. Akman, A. Kumar, M.R. Kaçal   +3 more
doaj   +1 more source

In-Beam Background Suppression Shield [PDF]

, 2015
The long (3ms) proton pulse of the European Spallation Source (ESS) gives rise to unique and potentially high backgrounds for the instrument suite. In such a source an instrument capabilities will be limited by it's Signal to Noise (S/N) ratio.
Ansell, S., Bentley, P. M., Cai, X. X., DiJulio, D. D., Santoro, V.   +4 more
core   +2 more sources

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

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

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

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

Universal response of optimal granular damping devices [PDF]

, 2012
Granular damping devices constitute an emerging technology for the attenuation of vibrations based on the dissipative nature of particle collisions. We show that the performance of such devices is independent of the material properties of the particles ...
Bai, Bannerman, Brilliantov, Chen, Chung, Duan, Duncan, Friend, Gustavo Rosenthal, Kadanoff, Lieber, Liu, Lu, Luis A. Pugnaloni, Marhadi, Martín Sánchez, McNamara, Panossian, Papalou, Pöschel, Saeki, Salueña, Schäfer, Sánchez, Sánchez, Velichkovich, Xia   +26 more
core   +2 more sources

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

Molecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken, Andrea Abel Gutierrez, Imke van Rossum, Cornelia G. Spruijt, Michiel Vermeulen, Guido van Mierlo, Blanca Scheijen, Annemiek B. van Spriel   +7 more
wiley   +1 more source

CSF Levels of NPTX2 Are Associated With Less Brain Atrophy Over Time in Cognitively Unimpaired Individuals

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Neuronal pentraxin 2 (NPTX2) is a synaptic protein involved in synaptic plasticity and regulation of neuronal excitability. Lower baseline cerebrospinal fluid (CSF) NPTX2 levels have been shown to be associated with an earlier onset of mild cognitive impairment (MCI), a pre‐dementia syndrome, even after CSF Alzheimer's Disease (AD)
Juan P. Vazquez, Corinne Pettigrew, Yuxin Zhu, Claire Anderson, Guray Erus, Christos Davatzikos, Michael Miller, Abhay Moghekar, Sungtaek Oh, Chan‐Hyun Na, Marilyn Albert, Paul Worley, Anja Soldan   +12 more
wiley   +1 more source