Results 41 to 50 of about 18,960 (263)

The cosmological moduli problem and naturalness

open access: yesJournal of High Energy Physics, 2022
Nowadays, the cosmological moduli problem (CMP) comes in three parts: 1. potential violation of Big-Bang nucleosynthesis (BBN) constraints from late decaying moduli fields, 2.
Kyu Jung Bae   +3 more
doaj   +1 more source

CPT—DMT Correlations on Regional Soils from Croatia

open access: yesSensors, 2022
This paper was prepared based on in situ measurements carried out by the authors using the CPTu and DMT static penetration probes. The list of study sites includes seven specific locations in the northern parts of Croatia and one study site on the ...
Kristijan Grabar   +3 more
doaj   +1 more source

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

Assessment of spread foundation settlement using statistical determination of characteristic values of subsoil properties

open access: yesStudia Geotechnica et Mechanica
According to Eurocode 7, limit state design codes generally draw more attention to ultimate limit states than to serviceability limit states. This paper presents the problem of settlement assessment of spread foundations on clays when the foundation ...
Rabarijoely Simon   +2 more
doaj   +1 more source

Data on tensile tests and NMR measurements of poly(vinilidene fluoride) before and after stress relaxation

open access: yesData in Brief, 2018
Poly(vinilidene fluoride) was characterized before and after stress relaxation by tensile tests and time-domain nuclear magnetic resonance (TD-NMR). Tensile tests were performed to provide mechanical properties, focused on the data of elastic modulus for
Maria Marjorie Contreras   +4 more
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

open access: yesAdvanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

A MODULUS ITERATION METHOD FOR NONNEGATIVELY CONSTRAINED PHOTOACOUSTIC IMAGE RECONSTRUCTION

open access: yesJournal of Applied Analysis & Computation
Summary: The photoacoustic tomography (PAT) is a new biomedical imaging modality. Its assistance in early clinical diagnosis has become more and more important in the medical field. In the PAT imaging system, when a beam of short-pulsed laser irradiates the biological tissue, the photoacoustic effect results in the generation of the acoustic waves in ...
Wang, Shuo, Sun, Li, Huang, Yumei
openaire   +1 more source

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