Results 71 to 80 of about 319,504 (386)

Transport and Deposition of Variably Charged Soil Colloids in Saturated Porous Media

open access: yesVadose Zone Journal, 2011
A series of column experiments was conducted to investigate the transport and deposition of variably charged colloids in saturated porous media. Soil colloids with diameters
Anu Sharma   +4 more
doaj   +1 more source

Self-assembly of Active Colloidal Molecules with Dynamic Function

open access: yes, 2015
Catalytically active colloids maintain non-equilibrium conditions in which they produce and deplete chemicals and hence effectively act as sources and sinks of molecules.
Golestanian, Ramin, Soto, Rodrigo
core   +2 more sources

Flocking ferromagnetic colloids

open access: yesScience Advances, 2017
Energized by a vertical alternating magnetic field, colloidal particles roll and flock together. Assemblages of microscopic colloidal particles exhibit fascinating collective motion when energized by electric or magnetic fields.
A. Kaiser, A. Snezhko, I. Aranson
semanticscholar   +1 more source

A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?

open access: yesAdvanced Engineering Materials, EarlyView.
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli   +5 more
wiley   +1 more source

Shape-preserving erosion controlled by the graded microarchitecture of shark tooth enameloid

open access: yesNature Communications, 2020
Shark teeth have short lifespans yet can be subject to significant mechanical damage. Here, the authors report on a site-specific damage mechanism in shark teeth enameloid, which maintains tooth functional shape, providing experimental evidence that ...
Shahrouz Amini   +7 more
doaj   +1 more source

Procedure to construct a multi-scale coarse-grained model of DNA-coated colloids from experimental data

open access: yes, 2013
We present a quantitative, multi-scale coarse-grained model of DNA coated colloids. The parameters of this model are transferable and are solely based on experimental data.
Dawid, Alexandre   +4 more
core   +3 more sources

Geometry‐Based Scan Curve Analysis: Rapid Method for the Evaluation of Scan Strategies in Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents rapid evaluation methods for scan strategies in powder bed fusion (PBF) of polymers with a NIR laser as an example for its application. It uses line buffer‐based calculations and point density fields to predict the performance of four different scan strategies. The methods show promising results in laser‐based PBF of polymer samples,
Simon Leupold   +9 more
wiley   +1 more source

Influence of Soil Colloids on Ni Adsorption and Transport in the Saturated Porous Media: Effects of pH, Ionic Strength, and Humic Acid

open access: yesApplied Sciences, 2022
Natural colloids are widely distributed in soil and groundwater. Due to their specific characteristics, colloids can actively involve various transport contaminants, resulting in a complicated fate and the transport of heavy metals to the environment ...
Zhanxi Wei   +8 more
doaj   +1 more source

Influence of a Standard Heat Treatment on the Microstructure and Properties of Inconel X‐750 Produced by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Ni‐base superalloys produced using additive manufacturing (AM) have a different response to heat treatments when compared to their conventional counterparts. Due to such unpredictability, various alloys with industrial interest are currently overlooked in most prior AM research.
Guilherme Maziero Volpato   +6 more
wiley   +1 more source

Many-body interactions and melting of colloidal crystals

open access: yes, 2008
We study the melting behavior of charged colloidal crystals, using a simulation technique that combines a continuous mean-field Poisson-Boltzmann description for the microscopic electrolyte ions with a Brownian-dynamics simulation for the mesoscopic ...
Carnie S. L.   +9 more
core   +1 more source

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