Results 31 to 40 of about 368 (69)

Optimizing the shielding properties of strength-enhanced concrete containing marble

open access: yesPapers in Physics, 2020
The purpose of this study is to develop a low cost, locally produced concrete mixture with optimum marble content. The resulting mixture would have enhanced strength properties compared to the non-marble reference concrete, and improved radiation ...
A. Abdel-Latif M.   +3 more
doaj   +2 more sources

Volatility Modeling via EWMA-Driven Time-Dependent Hurst Parameters [PDF]

open access: yesMathematics and Modeling in Finance
We introduce a novel rough Bergomi (rBergomi) model featuring a variance-driven exponentially weighted moving average (EWMA) time-dependent Hurst parameter $H_t$, fundamentally distinct from recent machine learning and wavelet-based approaches in the ...
Jayanth Athipatla
doaj   +1 more source

Microbial co-occurrence network topological properties link with reactor parameters and reveal importance of low-abundance genera

open access: yesnpj Biofilms and Microbiomes, 2022
Operational factors and microbial interactions affect the ecology in anaerobic digestion systems. From 12 lab-scale reactors operated under distinct engineering conditions, bacterial communities were found driven by temperature, while archaeal ...
Bing Guo   +7 more
doaj   +1 more source

Cadmium oxide reinforced 46V2O5–46P2O5–(8−x)B2O3–xCdO semiconducting oxide glasses and resistance behaviors against ionizing gamma rays

open access: yesJournal of Materials Research and Technology, 2021
This study aimed to determine the contribution of B2O3/CdO substitution on gamma-ray attenuation behaviors of 46V2O5–46P2O5–(8−x)B2O3–xCdO (x = 0–8 mol%) glass system.
H.O. Tekin   +8 more
doaj   +1 more source

Deposition process and mechanical properties of magnesium alloy inclined thin-walls fabricated by wire-arc additive manufacturing

open access: yesCailiao gongcheng
Wire-arc additive manufacturing is a new type of manufacture using wire as filling material and arc as a heat source, making it easier to manufacture complex-shaped and big-sized parts.
ZHENG Yuanxuan   +7 more
doaj   +1 more source

How the Filling Patterns Influence the Comprehensive Performance on FDM Specimens Based on PLA Filament

open access: yesJournal of Harbin University of Science and Technology, 2018
Based on FDM rapid prototyping manufacturing,the plastic tensile specimen was formed by using the biodegradable polymers-poly anhydrides(PLA) filament.A comprehensive consideration that how the processing parameters of filling density,layer height and ...
YU Yan-dong, MENG Chen-li
doaj   +1 more source

Brain functional connectivity during the first day of coma reflects long-term outcome

open access: yesNeuroImage: Clinical, 2020
Objective: In patients with disorders of consciousness (DOC), properties of functional brain networks at rest are informative of the degree of consciousness impairment and of long-term outcome. Here we investigate whether connectivity differences between
Thomas Kustermann   +8 more
doaj   +1 more source

The Journey to Dominance: How Brightest Cluster Galaxies Evolve Differently from Other Massive Galaxies

open access: yesThe Astrophysical Journal
We use the L-GALAXIES semianalytic model to investigate the evolution of brightest cluster galaxies (BCGs) found in clusters at z  ∼ 0. BCGs are typically located in the central region of galaxy clusters, near the bottom of the potential well, exposing ...
Marcelo C. Vicentin   +5 more
doaj   +1 more source

MHz X-ray photon correlation spectroscopy using an acoustic levitator at the European XFEL

open access: yesJournal of Synchrotron Radiation
The structural and dynamical properties of soft-matter systems play an important role in crystallization and nucleation theory. Despite their significance, the dynamical properties are still poorly understood because of experimental constraints and the ...
Wonhyuk Jo   +10 more
doaj   +1 more source

Enhancing Cement Paste Properties with Biochar: Mechanical and Rheological Insights

open access: yesApplied Sciences
Biochar, the solid sub-product of biomass pyrolysis, is widely considered an effective water retention material thanks to its porous microstructure and high specific surface area.
Daniel Suarez-Riera   +5 more
doaj   +1 more source

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