Results 141 to 150 of about 947,734 (317)

Influence of rotation and permeable boundaries on thermal instability in a Darcy-Brinkman ferrofluid layer with magnetic field dependent viscosity

Journal of Taibah University for Science
This study examines the thermal instability in a magnetized rotating ferrofluid layer with magnetic field-dependent (MFD) viscosity, confined between two horizontal permeable boundaries using the Darcy-Brinkman model.
Abhishek Thakur, Pankaj Kumar, Mandeep Kaur, Awneesh Kumar   +3 more
doaj   +1 more source

Rotation-induced macromolecular spooling of DNA

, 2017
Genetic information is stored in a linear sequence of base pairs; however, thermal fluctuations and complex DNA conformations such as folds and loops make it challenging to order genomic material for in vitro analysis.
Gary W. Slater (1991002), Sophie Battat (7162124), Daniel J. Berard (7162115), Julian Wolf (7162118), Tyler Shendruk (5731796), Sabrina R. Leslie (2284846), David Sean (3227811), Justin Dragoman (7162121)   +7 more
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Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Vibrations of a Rotating Hanged String with a Heavy Tip Mass

Engineering Transactions
The vibrations of a string-mass system are considered. A heavy mass is suspended from a string, and the system is subjected to axial rotation. The partial differential equation modeling the system’s dynamics is first derived.
Mehmet PAKDEMIRLI
doaj   +1 more source

FIREFIGHTS AND FUEL MANAGEMENT: A NESTED ROTATION MODEL FOR WILDFIRE RISK MITIGATION [PDF]

Scientists and policymakers are increasingly aware that wildfire management efforts should be broadened beyond the century-long emphasis on suppression to include more effective efforts at fuel management.
Marian Lankoande, Jonathan Yoder
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Rotation-Activity-Age Relations for Solar-Type and Cooler Stars

, 2016
The fact that stellar rotation and chromospheric emission are correlated with age was explicitly noted by Wilson (1963) and reinforced by Kraft (1967). Wilson knew that Ca II emission was correlated with surface magnetic field in the Sun. Skumanich (1972)
Basri, Gibor, Basri, Gibor (5201506)
core   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Two-Part Tax Controls for Forest Density and Rotation Time

Many forest amenities are derived not only from the age of the trees, but also from the density of the trees. When an externality such as erosion control is considered, clear-cutting results in much larger damages than occur with selective cutting.
Brown, J. Bradley
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