Results 91 to 100 of about 1,128,590 (303)

Considerations on the Role of Fall-Back Discs in the Final Stages of the Common Envelope Binary Interaction

open access: yes, 2016
The common envelope interaction is thought to be the gateway to all evolved compact binaries and mergers. Hydrodynamic simulations of the common envelope interaction between giant stars and their companions are restricted to the dynamical, fast, in ...
De Marco, Orsola   +2 more
core   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

A continuum theory of phase separation kinetics for active Brownian particles

open access: yes, 2013
Active Brownian particles (ABPs), when subject to purely repulsive interactions, are known to undergo activity-induced phase separation broadly resembling an equilibrium (attraction-induced) gas-liquid coexistence.
Allen, Rosalind J.   +4 more
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Turning Microstructure in Block Copolymer Membranes: A Facile Strategy to Improve CO2 Separation Performance

open access: yesAdvanced Science
To mitigate global climate change, the development of membranes with high CO2 permeability and selectivity is urgently needed. Here, a simple and effective non‐solvent‐induced microstructure rearrangement (MSR) technique is proposed to enhance the gas ...
Jing Wei   +16 more
doaj   +1 more source

Machine learning-assisted development of gas separation membranes: A review

open access: yesCarbon Capture Science & Technology
Gas separation membranes have been a hot topic of research in recent decades due to their low costs, high energy efficiency and wide range of applications.
An Li   +5 more
doaj   +1 more source

Latest development on the membrane formation for gas separation [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2002
The first scientific observation related to gas separation was encountered by J.K Mitchell in 1831. However, the most remarkable and influential contribution to membrane gas separation technology was the systematic study by Thomas Graham in 1860. However
Ahmad Fausi Ismail   +2 more
doaj  

Phase Separation of Crystal Surfaces: A Lattice Gas Approach

open access: yes, 1994
We consider both equilibrium and kinetic aspects of the phase separation (``thermal faceting") of thermodynamically unstable crystal surfaces into a hill--valley structure.
A. C. Shi   +70 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Gas-Liquid Separation Mechanism of Downhole Pump under High Gas Content Condition and Its System Design Method

open access: yesShiyou jixie, 2020
To explore the effects of various production parameters on the downhole pump separation performance, a gas-liquid separation flow field bubble dynamics model under the nonlinear and unsteady pump is established.
Wang Xiaolei   +4 more
doaj  

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