Results 41 to 50 of about 48,358 (196)

Diffusiophoresis of Macromolecules within the Framework of Multicomponent Diffusion

open access: yesMolecules
Diffusiophoresis is the isothermal migration of a colloidal particle through a liquid caused by a cosolute concentration gradient. Although diffusiophoresis was originally introduced using hydrodynamics, it can also be described by employing the ...
Onofrio Annunziata
doaj   +1 more source

Data Flow-Related Provisions in Preferential Trade Agreements : Trends and Patterns of Diffusion

open access: yes, 2021
The chapter explores data-related provisions in preferential trade agreements and analyzes trends and patterns in their evolution based on a comprehensive dataset.
Manfred Elsig   +3 more
core   +1 more source

Experimental and simulation-based investigation of He, Ne and Ar irradiation of polymers for ion microscopy

open access: yesBeilstein Journal of Nanotechnology, 2016
Secondary ion mass spectrometry (SIMS) on the helium ion microscope (HIM) promises higher lateral resolution than on classical SIMS instruments. However, full advantage of this new technique can only be obtained when the interaction of He+ or Ne+ primary
Lukasz Rzeznik   +3 more
doaj   +1 more source

EFFECT OF STRETCH AND PREFERENTIAL DIFFUSION IN SPHERICALLY PROPAGATING H2/AIR PREMIXED FLAMES

open access: yes, 2019
The effects of stretch and preferential diffusion on premixed flame behavior are studied for inwardly/outwardly propagating spherical flames in hydrogen/air mixtures.
Lee, S. D., Chung, Suk Ho
core   +1 more source

A Review of Advances in Preferential Flow and Transport Pathway Characteristics of Soil in Highly Permeable Strata

open access: yesYankuang ceshi
Soil preferential flow refers to the rapid transport of water and solutes through heterogeneous pathways within the soil matrix, particularly in highly permeable formations.
Haolin JIA   +7 more
doaj   +1 more source

Probing solid-state diffusion and its synergistic role with preferential oxidation in enhancing the ablation performance of multiphase multicomponent carbide

open access: yesJournal of Advanced Ceramics
Multiphase multicomponent ultrahigh-temperature ceramics (UHTCs) hold great promise for achieving better ablation performance because of their broader structure and compositional tunability.
Ziming Ye   +8 more
doaj   +1 more source

Comparison on the coercivity enhancement of sintered NdFeB magnets by grain boundary diffusion with low-melting (Tb, R)75Cu25 alloys (R= None, Y, La, and Ce)

open access: yesAIP Advances, 2019
A significant coercivity enhancement of the commercial NdFeB magnets with the magnetic properties of (BH)max = 48.4 MGOe and iHc = 17.5 kOe through grain boundary diffusion (GBD) with low-melting Tb55R20Cu25 alloys is demonstrated.
Y. J. Wong   +5 more
doaj   +1 more source

A computational study of preferential diffusion and scalar transport in nonpremixed hydrogen-air flame [PDF]

open access: yes, 2015
The nonpremixed hydrogen-air reacting flow is simulated using three-dimensional direct numerical simulation coupled with flamelet generated manifolds based on detailed chemical kinetics.
Zhu, Min, Jiang, Xi, Jiang, Jieyu
core  

Diffusion phenomena of the oxygen and nitrogen in niobium by mechanical spectroscopy

open access: yes, 2010
The short-range diffusion phenomenon (Snoek Effect) was investigated by mechanical spectroscopy measurements between 300 K and 650 K, in a polycrystalline niobium sample, containing oxygen and nitrogen, using a torsion pendulum.
Silva, P. S.   +3 more
core   +1 more source

Identifying the location and micellization of PEG-b-PCL multiblock copolymers in PLA/PCL blends via AFM nanoscale IR spectroscopy

open access: yesPolymer Testing
The IR absorption mapping of two multiblock copolymers based on poly(ethylene glycol) and poly(ε-caprolactone) segments (PEG-b-PCL) in poly(acid lactic) and poly(ε-caprolactone) blends (PLA/PCL) was performed via AFM nanoscale IR spectroscopy.
Lucas H. Staffa   +2 more
doaj   +1 more source

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