Results 41 to 50 of about 121,151 (296)

Extraction of the Structural Properties of Skin Tissue via Diffuse Reflectance Spectroscopy: An Inverse Methodology

Sensors, 2021
For the laser treatment of vascular dermatosis, the blood vessel morphology and depth in skin tissue is essential to achieve personalized intelligent therapy.
Bin Chen, Yong Zhang, Shang Gao, Dong Li
doaj   +1 more source

Algebraic multigrid preconditioners for two-phase flow in porous media with phase transitions

, 2018
Multiphase flow is a critical process in a wide range of applications, including oil and gas recovery, carbon sequestration, and contaminant remediation.
Bui, Quan M., Osei-Kuffuor, Daniel, Wang, Lu   +2 more
core   +1 more source

Three-Dimensional Multi-Relaxation Time (MRT) Lattice-Boltzmann Models for Multiphase Flow [PDF]

, 2006
In this paper, three-dimensional (3D) multi-relaxation time (MRT) lattice-Boltzmann (LB) models for multiphase flow are presented. In contrast to the Bhatnagar-Gross-Krook (BGK) model, a widely employed kinetic model, in MRT models the rates of ...
Abe, Ansumali, Ansumali, Benzi, Bhatnagar, Boghosian, Bouzidi, Carnahan, Chapman, Chen, Chen, d’Humières, Evans, Frisch, Ginzbourg, Ginzburg, Grad, He, He, He, He, He, He, He, Higuera, Higuera, Inamuro, John Abraham, Kannan N. Premnath, Karlin, Krafczyk, Lallemand, Lallemand, Lallemand, Lamb, Lee, Luo, Maxwell, McCracken, McCracken, McNamara, Miller, Nourgaliev, Premnath, Premnath, Premnath, Qian, Qian, Rasin, Rowlinson, Shan, Shan, Succi, Succi, Swift, Swift, Wolf-Gladrow, Yong, Zhang, Zheng, Zou   +60 more
core   +2 more sources

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Dynamics and effective distance of gas–liquid two-phase swirling flow induced by vortex tools

Advances in Mechanical Engineering, 2018
Based on the mechanistic model of the two-phase swirling annular flow behavior, a calculation method for the effective distance of vortex tool is obtained by taking Kelvin–Helmholtz instability into account.
Zhao Zhang, Ruiquan Liao, Jie Liu
doaj   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Preparation of biochar adsorption material from walnut shell by supercritical CO2 pretreatment

Biochar
In order to treat dyes in the wastewater of the printing industry and to reutilize walnut shell (WS) waste generate economic benefits, supercritical carbon dioxide (SC-CO2) pretreatment technology was developed to prepare porous biochar as a precursor ...
Zitong Zhuang, Yanbing Liu, Wenwen Wei, Jinwen Shi, Hui Jin   +4 more
doaj   +1 more source

Investigations on affinity law under gas–liquid conditions in multistage radial and mixed-flow multiphase pumps [PDF]

International Journal of Fluid Engineering
Affinity laws have been widely used in pump design and simulation under high-temperature and corrosive conditions. By applying such laws, it is possible to shorten development cycles and reduce test costs.
Liang Chang, Chenyu Yang, Xiaobin Su, Xiaoyu Dai, Qiang Xu, Liejin Guo   +5 more
doaj   +1 more source

On a model of multiphase flow

, 2007
We consider a hyperbolic system of three conservation laws in one space variable. The system is a model for fluid flow allowing phase transitions; in this case the state variables are the specific volume, the velocity and the mass density fraction of the
Amadori, Debora, Corli, Andrea
core   +2 more sources

Toward Low‐Consumable Anodes: Process Simulation and Prospective Life Cycle Assessment of NiFe2O4‐NiO‐Ni‐Cu vs. Prebaked Anodes for Aluminum Production with use of Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz, Ulziikhuu Otgonbayar, Alexander Adamczyk, Farhan Hossain, Daniel Vogt, Johan Berg Pettersen, Alexandros Charitos   +6 more
wiley   +1 more source