Results 141 to 150 of about 31,144 (273)

Relation of Bulk‐to‐Shear Loss Factors in Viscoelastic Auxetic Metamaterials

open access: yesphysica status solidi (b), EarlyView.
This article examines the dynamic behavior of isotropic auxetic viscoelastic materials, highlighting how negative Poisson's ratios affect energy dissipation, damping, and the interplay between bulk and shear moduli. By extending established viscoelastic theories to the auxetic range, it defines bound limits and underscores how dynamic Poisson's ratio ...
Simon Preston   +2 more
wiley   +1 more source

Investigating the Performance of Polytetrafluoroethylene and Polyoxymethylene Creasing Rules in the Package Conversion of Coated Paperboard

open access: yesPackaging Technology and Science, EarlyView.
Two sets of creasing tools were designed and machined from polytetrafluoroethylene (PTFE) and polyoxymethylene (POM) in this study to improve the creasability of commercial dispersion‐coated paperboard. Their performance was evaluated by measuring the oil and grease resistance of the samples before and after creasing/folding and comparing the results ...
Roman Lev   +4 more
wiley   +1 more source

Aligning Real‐Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel

open access: yessteel research international, EarlyView.
Uncertainties exist in computational fluid dynamics (CFD) modeling of complex metallurgical processes, even when partly validated by laboratory experiments. rCFD enables computationally efficient prediction of long‐term RH degassing and can be adapted to vary flow conditions.
Xiaomeng Zhang   +3 more
wiley   +1 more source

A thermoplastic microfluidic platform with integrated electrospun scaffolds for assessing brain cell‐specific drug selectivity

open access: yesVIEW, EarlyView.
Schematic representation of the microfluidic platform with its advantages. Abstract A major challenge in pharmacology is the limited selectivity of therapeutic compounds toward specific tissues or cells. Drugs often distribute systemically before reaching the intended site of action, affecting nontarget cells and potentially reducing efficacy or ...
Maria Testa   +8 more
wiley   +1 more source

Spin‐contrast‐variation small‐angle neutron scattering study of fully and partially swollen silica‐filled rubber

open access: yesJournal of Applied Crystallography, EarlyView.
We have elucidated the polymer adsorption layer structure in filler–rubber systems by conducting spin‐contrast‐variation small‐angle neutron scattering on partially and fully swollen filler–rubber samples with and without a silane coupling agent.We have elucidated the polymer adsorption layer structure in filler–rubber systems by conducting spin ...
Yohei Noda   +8 more
wiley   +1 more source

ESTUDIO COMPARATIVO DE MODELOS NUMÉRICOS PARA EL SEGUIMIENTO DE INTERFACES MÓVILES: ESTUDIO DEL DERRAME DE UNA COLUMNA DE LÍQUIDO COMPARATIVE STUDY OF NUMERICAL MODELS FOR MOVING INTERFACE PROBLEMS: ANALYSIS OF THE COLLAPSE OF A LIQUID COLUMN

open access: yesIngeniare: Revista Chilena de Ingeniería, 2007
En este trabajo se presenta la simulación numérica del problema del derrame de una columna de líquido. El análisis numérico se realiza utilizando el método de volúmenes finitos y la técnica conocida como VOF para el seguimiento de la superficie interfaz.
Juan Pablo Barraza   +1 more
doaj  

Resilient Biophysical Phenotype of Memory CD4+ T Cells in Long‐Lived Mice

open access: yesImmunology, EarlyView.
Aging is associated with increased stiffness and reduced migratory capacity of memory CD4+ T cells; however, these biophysical declines do not persist in exceptionally long‐lived mice. Instead, long‐lived individuals preserve T cell mechanics, migration and intracellular architecture, supporting mechanical resilience as a hallmark of successful immune ...
Aldo Abarca‐Ortega   +6 more
wiley   +1 more source

Axial muscle‐fibre orientations in larval zebrafish

open access: yesJournal of Anatomy, Volume 246, Issue 4, Page 517-533, April 2025.
In 4 days post‐fertilization zebrafish larvae, the fast axial muscle fibres follow helical trajectories that taper towards the tail. Adjacent muscle fibres form substantial angles relative to each other to accommodate this pattern. Using a novel semi‐automatic method, we quantified 3D fibre angles over the whole muscle volume.
Noraly M. M. E. van Meer   +3 more
wiley   +1 more source

Immobilized CuCl2/TiO2 photocatalysts for the selective oxidation of benzyl alcohol to benzaldehyde

open access: yesPhotochemistry and Photobiology, EarlyView.
The photocatalytic aerobic oxidation of benzyl alcohol to benzaldehyde was investigated using free and alginate‐immobilized CuCl2 and/or TiO2 (P25) catalysts under UV irradiation. Immobilization enabled catalyst recovery and maintained high benzaldehyde selectivity but led to reduced activity due to internal oxygen diffusion limitations, which were ...
Nosaibeh Nosrati‐Ghods   +3 more
wiley   +1 more source

Computational analysis to assess hemodynamic forces in descending thoracic aortic aneurysms

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Left: Pre‐processing. First, we perform the segmentation of the Computer Tomography angiorgraphy (angio‐CT) scans of a healthy patient, obtaining the surface of a healthy thoracic aorta with a Type III aortic arch. Then, we build nine ideal configurations with Descending Thoracic Aortic Aneurysm (DTAA), varying the aortic arch ...
Francesca Duca   +7 more
wiley   +1 more source

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