Results 101 to 110 of about 16,275,608 (246)
Transit Time Theory for a Droplet Passing through a Slit in Pressure-Driven Low Reynolds Number Flows. [PDF]
Micromachines (Basel), 2023 Borbas SW +5 more
europepmc +1 more source
The Power of Unity: Collective Action and Smallholder Agricultural Performance in West Africa
Agribusiness, EarlyView.ABSTRACT We analyze the impact of collective action through farmer‐based organizations (FBOs) on smallholders' farm performance and income inequality in Ghana, Benin, The Gambia, and Mali. We find that FBO membership increases cereal yield in Ghana and The Gambia, legume yield in Mali, ruminant numbers in Benin and The Gambia, and total farm income in ...
Emmanuel Donkor +3 more
wiley +1 more source
Agribusiness, EarlyView.ABSTRACT In the agricultural landscape of most developing countries, the last decade has witnessed the expansion of outsourced agricultural extension services. Private firms and nongovernmental organizations focused on delivering agricultural extension and advisory services to farmers have emerged.
Boris D. Soh Wenda +3 more
wiley +1 more source
Aerodynamic study of the corrugated airfoil at ultra-low Reynolds number
Advances in Mechanical Engineering, 2019 In this study, Aeshna cyanea dragonfly forewing mid-cross-section corrugated airfoil was simulated at ultra-low Reynolds number. The corrugated airfoil was compared with its smooth counterpart to study the effect of the corrugations upon the aerodynamic ...
Mahmoud E Abd El-Latief +2 more
doaj +1 more source
Solid particles focusing, orienting, and de‐focusing in planar Poiseuille flow
AIChE Journal, EarlyView.Abstract Three‐dimensional, time‐dependent lattice‐Boltzmann simulations of neutrally buoyant particles in planar Poiseuille flow have been performed. The particles are spherical or cylindrical (the latter with a length over diameter ratios in the range 1/3 to 2) and have volume fraction ranging from virtually zero (one particle) to 0.15. The channel's
J. J. Derksen
wiley +1 more source
Effect of Gurney Flaps on Non-Planar Wings at Low Reynolds Number
AerospaceThe effect of spanwise wing non-planarity, employed in conjunction with a Gurney flap, is presented. Testing was undertaken in a low-speed wind tunnel using a rectangular wing with an aspect ratio of three. The outer one-third of the wing was non-planar,
Lance W. Traub
doaj +1 more source
In-Hover Aerodynamic Analysis of a Small Rotor with a Thin Circular-Arc Airfoil and a Convex Structure at Low Reynolds Number. [PDF]
Micromachines (Basel), 2023 Lei Y, Wang J, Li Y, Gao Q.
europepmc +1 more source
AIChE Journal, EarlyView.Abstract Nanofluids containing nanoparticles represent a promising solvent or reaction system for gas–liquid operations. Herein, the effect of nanoparticle (Al2O3 and SiO2) addition on gas–liquid slug flow pattern and mass transfer enhancement was investigated during CO2 absorption into water in microreactors.
Jie Zong, Jun Yue
wiley +1 more source
Evolution of Physical Intelligence Across Scales
Advanced Intelligent Discovery, EarlyView.By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu +7 more
wiley +1 more source
Low-Reynolds-number, biflagellated Quincke swimmers with multiple forms of motion. [PDF]
Proc Natl Acad Sci U S A, 2021 Han E, Zhu L, Shaevitz JW, Stone HA.
europepmc +1 more source