Results 101 to 110 of about 51,744 (287)

Bulk Viscosity, Decaying Dark Matter, and the Cosmic Acceleration [PDF]

, 2006
The authors discuss a cosmology in which cold dark-matter particles decay into relativistic particles. They argue that such decays could lead naturally to a bulk viscosity in the cosmic fluid.
Fuller, G. M., James R. Wilson, Wilson, James R, Fuller, George M, Grant J. Mathews, Wilson, J. R., Mathews, G., George M. Fuller, Mathews, Grant J   +8 more
core   +1 more source

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source

Universal properties of bulk viscosity near the QCD phase transition

, 2008
Karsch F, Kharzeev D, Tuchin K. Universal properties of bulk viscosity near the QCD phase transition. Physics Letters B. 2008;663(3):217-221.We extract the bulk viscosity of hot quark--gluon matter in the presence of light quarks from the recent lattice ...
Karsch, Frithjof, Kharzeev, Dmitri, Tuchin, Kirill   +2 more
core   +2 more sources

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Evaluation of colour stability, water sorption and solubility of no-cap flowable bulk fill resin composites

BMC Oral Health
Background The aim of this study is to investigate the colour stability, water absorption, and solubility values of low viscosity bulk fill resin composites that do not require an additional layer in comparison with high viscosity and low viscosity bulk ...
Merve Kütük Ömeroğlu, Hüseyin Can Hekimoğlu   +1 more
doaj   +1 more source

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

Advanced 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, María Ángeles Navacerrada, Johan Christensen, Carlos González   +3 more
wiley   +1 more source

Niobium oxyhydroxide as a bioactive agent and reinforcement to a high-viscosity bulk-fill resin composite

Journal of Applied Oral Science
Objective The present in vitro study incorporated niobium oxyhydroxide fillers into an experimental high-viscosity bulk-fill resin composite to improve its mechanical performance and provide it a bioactive potential.
Alyssa Teixeira OBEID, Tatiana Rita de Lima NASCIMENTO, Ana Carolina AGASSI, Ana Zélia Falcão ALMEIDA, Ana Paula de Melo Alves GUEDES, João Marco ALVES, Juliana Fraga Soares BOMBONATTI, Marilia Mattar de Amoêdo Campos VELO   +7 more
doaj   +1 more source

Sampling the Bulk Viscosity of Water with Molecular Dynamics Simulation in the Canonical Ensemble. [PDF]

J Phys Chem B, 2022
Hafner R, Guevara-Carrion G, Vrabec J, Klein P.   +3 more
europepmc   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Calculation of the Bulk Viscosity in SU(3) Gluodynamics [PDF]

Physical Review Letters, 2008
We perform a lattice Monte-Carlo calculation of the trace-anomaly two-point function at finite temperature in the SU(3) gauge theory. We obtain the long-distance properties of the correlator in the continuum limit and extract the bulk viscosity zeta via a Kubo formula.
openaire   +3 more sources