Results 171 to 180 of about 7,176,130 (391)
Trapping and scattering of a multiflagellated bacterium by a hard surface
Physical Review EThiovulum majus, which is one of the fastest known bacteria, swims using hundreds of flagella. Unlike typical pusher cells, which swim in circular paths over hard surfaces, a T. majus cell turns its flagella normal to the surface. To probe the torques that stabilize this unusual fixed point, the trajectories of several thousand collisions between a T ...
Alexander P. Petroff, Schuyler McDonough
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Antimicrobial Titanium–Copper Alloys: The Role of Microstructure in Arc‐Melted Compositions
Advanced Engineering Materials, EarlyView.Copper‐containing titanium alloys show promise in combating orthopedic implant infections. This study explores the influence of heat treatment on Ti‐11.5Cu and Ti‐33Cu alloys, revealing that larger Ti2Cu precipitates (≈5 μm) enhance antimicrobial efficacy through increased surface contact. Results suggest contact sterilization is the primary mechanism,
Daisy Rabbitt +5 more
wiley +1 more source
Morphology and Properties of Zn-Al-TiO2 Composite on Mild Steel [PDF]
, 2012 The influence of TiO2 composite and dispersed pure Al particle on zinc alloy electrodeposited on mild steel was studied from chloride bath solution.Microstructural and mechanical properties of the alloy were investigated.
Fayomi, O. S. I +3 more
core
Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components
Advanced Engineering Materials, EarlyView.This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller +5 more
wiley +1 more source
The Influence of the Burnishing Process on the Change in Surface Hardness, Selected Surface Roughness Parameters and the Material Ratio of the Welded Joint of Aluminum Tubes. [PDF]
Materials (Basel), 2023 Labuda W, Wieczorska A, Charchalis A.
europepmc +1 more source
Influence of the Machined Surface Layer on Hardness of the Surface of Hardened Steel
, 1961 Yutaka Arakida, Tsuruo Shibazaki
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Influence of Pin Surface Hardness and Roughness on the Silent Chain Wear Resistance
Jixie chuandong, 2016 The influence laws of pin surface hardness and roughness on the silent chain wear resistance is proposed,the relationship between the pin surface hardness,surface roughness and the silent chain wear resistance is expounded.
Jin Lijun +3 more
doaj
Dental HypothesesIntroduction: This study aimed to assess the effect of the addition of 1%, 1.5%, and 2% by weight silicon dioxide nanoparticles on the surface roughness, surface hardness, tensile strength, and shear bond strength of chairside room temperature silicone ...
Wasmaa S. Mahmood +3 more
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Advanced Engineering Materials, EarlyView.Ultrahigh‐molecular‐weight polyethylene powders (<≈40 μm) with a bulk density of 260 g L−1 are prepared from a silica supported bisimine pyridine iron catalyst. The nascent product is disentangled and can be thermally densified without loss of its low viscosity.
Adrian Vaghar +4 more
wiley +1 more source