Results 121 to 130 of about 1,282,048 (295)

Turbulator Diameter and Drag on a Sphere

, 2009
A sphere with turbulators of varying diameter was pulled through water with constant force. The relationship between the diameter of the turbulators and the ball’s total coefficient of drag was determined.
Nicholas Robson
core  

Ab Initio Thermoelectric Transport Calculations of Alloyed Half‐Heuslers

Advanced Science, EarlyView.
The effect of alloying on the electronic transport of half‐Heusler thermoelectric materials is explored using a fully ab initio approach. A novel method is developed that combines calculations of alloyed supercells with Boltzmann transport, considering the full energy and momentum dependent scattering processes from first principles extracted ...
Ankit Kumar, Bhawna Sahni, Neophytos Neophytou   +2 more
wiley   +1 more source

Improved drag coefficient and settling velocity for carbonate sands. [PDF]

Sci Rep, 2020
Riazi A, Vila-Concejo A, Salles T, Türker U.   +3 more
europepmc   +1 more source

Sex‐ and Time‐Resolved Physiological and Gut Ecosystem Responses to a Food‐Grade Microbiome‐Targeted Intervention in Collegiate Endurance Athletes

Advanced Science, EarlyView.
In collegiate endurance athletes, a 6‐week randomized CPYE intervention yielded time‐ and sex‐dependent shifts in field‐based cardiorespiratory, metabolic, and redox indices, accompanied by changes in gut multi‐omics profiles. An exploratory extension during intensified training generates hypotheses warranting future validation.
Meng Zhang, Le Ge, Kaiyang Liu, Yanrong Liu, Guolin Zhao, Lai‐Yu Kwok, Zheng Sun, Zhihong Sun, Wenyi Zhang   +8 more
wiley   +1 more source

On the Decrease of the Oceanic Drag Coefficient in High Winds

, 2018
The sheltering coefficient – prefixing Jeffreys' concept of the exponential wave growth rate at a gas‐liquid interface – is shown to be Reynolds number dependent from laboratory measurements of waves and Reynolds stresses.
Donelan, Mark A., Mark A. Donelan
core   +1 more source

Human Engineered Heart Tissues Reproduce Trigger‐ and Substrate‐Driven Mechanisms of Ventricular Tachycardia

Advanced Science, EarlyView.
Engineered heart tissues (EHTs) derived from human iPSCs replicate mechanisms of ventricular tachycardia at the tissue level. Acquired Long‐QT conditions cause early afterdepolarizations, wavebreak, and transient rotors; in contrast, focal cryoinjury forms a stable substrate that supports ongoing reentry.
Matthew Fiedler, Alejandra Vasquez Limeta, Ernesto Reyes Sanchez, Leah Carter, Francisco Altamirano   +4 more
wiley   +1 more source

Turbulence effects on the drag coefficient of sharp-edged objects

, 1973
Determination of drag coefficients from the conventional plots of drag coefficient versus Reynolds number is inadequate in the case of turbulent ...

core  

Hydrodynamic Selection of Polymorphic Assembly Pathways in Plant Protein Amyloid Fibrils

Advanced Science, EarlyView.
Hydrodynamic conditions are revealed to govern polymorphic assembly of soy protein amyloid fibrils. Distinct flow‐induced drafting, kissing, and docking dynamics direct fibril growth into multiple morphologies, linking fluid mechanics with nanoscale assembly and enabling rational design of functional amyloid materials.
Zejian Xu, Pengfei Yang, Meng Li, Zichen Cao, Tian Lan, Yan Zhang, Weibiao Zhou, Lianzhou Jiang, Xiaonan Sui   +8 more
wiley   +1 more source

Parameterization scheme of the sea surface drag coefficient considering the influence of wave states and sea spray stress

Frontiers in Marine Science
The drag coefficient of the sea surface is crucial for the exchange of momentum between the ocean and atmosphere. The wave state significantly influences the variability of the drag coefficient.
Zeqi Zhao, Jian Shi, Hanshi Wang, Zhenhui Yi, Wenjing Zhang, Xueyan Zhang   +5 more
doaj   +1 more source

Parabolic dependence of the drag coefficient on wind speed from aircraft eddy-covariance measurements over the tropical Eastern Pacific. [PDF]

Sci Rep, 2020
Gao Z, Peng W, Gao CY, Li Y.
europepmc   +1 more source