Results 71 to 80 of about 4,195,211 (256)

Numerical Study of Lateral Migration of Elliptical Magnetic Microparticles in Microchannels in Uniform Magnetic Fields

Magnetochemistry, 2018
This work reports numerical investigation of lateral migration of a paramagnetic microparticle of an elliptic shape in a plane Poiseuille flow of a Newtonian fluid under a uniform magnetic field by direct numerical simulation (DNS).
Jie Zhang, Cheng Wang
doaj   +1 more source

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

Experimental study on particle migration in propped fractures of coal seam under true triaxial stress

Meitan xuebao
During the production of deep coalbed methane (CBM) after fracturing, the output of coal fines and proppants is prone to occur, leading to a decline in well productivity.
Ruili ZHOU, Chuhao CHEN, Jun ZHENG, Yihang XIAO   +3 more
doaj   +1 more source

Identifying the predominant peak diameter of high-density and low-density lipoproteins by electrophoresis.

Journal of Lipid Research, 1990
Particle size distributions of high-density (HDL) and low-density (LDL) lipoproteins, obtained by polyacrylamide gradient gel electrophoresis, exhibit apparent predominant and minor peaks within characteristic subpopulation migration intervals.
PT Williams, RM Krauss, AV Nichols, KM Vranizan, PD Wood   +4 more
doaj   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Influence of Cross-Sectional Curve Equation on Flow Field Evolution and Particle Separation in the Spiral Concentrator of the First Turn

Separations
The flow field evolution in the first turn of the spiral concentrator is decisive for the separation efficiency of solid particles. A laboratory-scale Φ300 mm spiral concentrator was employed as the study subject.
Shuling Gao, Chunyu Liu, Xiaohong Zhou, Xintong Zhang, Qian Wang, Cong Han   +5 more
doaj   +1 more source

Effect of microchannel structure and fluid properties on non-inertial particle migration.

Soft Matter, 2019
In this work, we investigate the influence of channel structure and fluid rheology on non-inertial migration of non-Brownian polystyrene beads. Particle migration in this regime can be found in biomedical, chemical, environmental and geological ...
R. Maitri, S. De, S. De, S. P. Koesen, H. Wyss, J. V. D. Schaaf, J. Kuipers, Jt Johan Padding, E. Peters   +8 more
semanticscholar   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Semantic Modeling in Materials Science and Engineering With Platform MaterialDigital Core Ontology 3.0

Advanced Engineering Materials, EarlyView.
The community‐driven Platform MaterialDigital Core Ontology (PMDco) 3.0 is introduced as a Basic Formal Ontology‐aligned semantic backbone for the processing–structure–properties paradigm in Materials Science and Engineering. Modular engineering, automated releases, and validation workflows are highlighted and key semantic patterns for materials ...
Markus Schilling, Philipp von Hartrott, Jörg Waitelonis, Thomas Hanke, Henk Birkholz, Hossein Beygi Nasrabadi, Khashayar Razghandi, Kamilla Zaripova, Felix Thonagel, Fabian Neuhaus, Martin Glauer, Lars Vogt, Harald Sack, Lutz Mädler, Bernd Bayerlein, Chris Eberl   +15 more
wiley   +1 more source

Inverse Grading Emerges From Particle‐Scale Migration Under Seasonal Freeze‐Thaw Forcing: Evidence From Multi‐Year Monitoring and Physical Modeling

Geophysical Research Letters
Inverse grading, where coarse particles overlay finer materials, is common on talus slopes, yet its progressive formation under realistic conditions is rarely quantified.
Weibo Li, Qinglu Deng, Limin Zhang, Pengju An, Xingwei Ren, Xuexue Su, Ruiqiang Bai, Jiren Xie, Li Zeng, Kun Fang   +9 more
doaj   +1 more source