Results 71 to 80 of about 79,589 (237)
Periodic saltation over hydrodynamically rough beds: aeolian to aquatic [PDF]
Journal of Fluid Mechanics, 2015 We determine approximate analytical solutions for average periodic trajectories of particles that are accelerated by the turbulent shearing of a fluid between collisions with a hydrodynamically rough bed. We indicate how the viscosity of the fluid may influence the collisions with the bed.
BERZI, DIEGO +2 more
openaire +4 more sources
From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts
Advanced Functional Materials, EarlyView.Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado +6 more
wiley +1 more source
Basal roughness of the East Antarctic Ice Sheet in relation to flow speed and basal thermal state
Annals of Glaciology, 2020 Basal motion of ice sheets depends in part on the roughness and material properties of the subglacial bed and the occurrence of water. To date, basal motion represents one of the largest uncertainties in ice-flow models. It is that component of the total
Olaf Eisen +4 more
doaj +1 more source
Effects of Regularly Arrayed Roughness on Flow Resistance and Turbulent Flow Structure in an Open Channel [PDF]
, 2014 Effects of regularly arrayed cylindrical and sphere roughness on flow resistance and turbulent characteristics in an open channel have been investigated over a completely rough-bed with uniform stainless steel rods and glass beads.
Sukarno, S. (Sukarno)
core
Effect of Industrial Heat Treatment and Barrel Finishing on the Mechanical Performance of Ti6Al4V Processed by Selective Laser Melting [PDF]
, 2020 Additive manufacturing is now capable of delivering high-quality, complex-shaped metallic components. The titanium alloy Ti6Al4V is an example of a printable metal being broadly used for advanced structural applications.
Boschetto, Alberto +4 more
core +1 more source
Influence of bed roughness on near-bed turbulent flow characteristics
International Journal of Water Resources and Environmental Engineering, 2020 Influence of bed roughness on near-bed flow characteristics is of considerable importance, especially in turbulent flows over rough beds. This experimental study is devoted to insight various turbulent flow characteristics such as velocity distributions, Reynolds shear stresses (RSS) and velocity power spectra at the groove, lee and crest level of ...
Das Ratul, Nizar Sinan
openaire +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim +6 more
wiley +1 more source
Characteristics of flow over the free overfall of triangular channel
MATEC Web of Conferences, 2018 In the present paper, the effects of side slopes, bed slopes and bed roughness on the flow over free overfalls in triangular channels have been studied experimentally.
Irzooki Raad, Hasan Safa
doaj +1 more source
Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review
Advanced Healthcare Materials, EarlyView.Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro +8 more
wiley +1 more source
Shock and Vibration, 2022 Water flow often releases excess energy after passing through gates and spillways. This energy should be reduced to avoid the destruction of downstream structures. The hydraulic jump, a natural phenomenon, inevitably reduces incoming flow energy.
Keikhosro Sayyadi +2 more
doaj +1 more source