Results 51 to 60 of about 36,484 (297)

Pore network tortuosity controls fast charging in supercapacitors

Nature Materials
Ionic transport within porous carbon electrodes is crucial for optimizing charge and discharge rates in supercapacitors, yet the material properties governing ion dynamics remain poorly understood.
Thomas Kress, Xinyu Liu, Alexander C. Forse   +2 more
semanticscholar   +1 more source

Gas Permeability Model for Porous Materials from Underground Coal Gasification Technology

Energies, 2021
Underground coal gasification (UCG) technology converts deep coal resources into synthesis gas for use in the production of electricity, fuels and chemicals.
Grzegorz Wałowski
doaj   +1 more source

Comprehensive CT Assessment of Subclavian Artery Tortuosity

JACC: Advances
Background: Right radial artery access is the most commonly used approach for coronary angiography. Tortuosity of the right subclavian artery (RSA) may complicate catheter navigation.
Charles-Meyer Arnaud, MD, Brahim Harbaoui, MD, PhD, Stanislas Champin, MD, Cyril Besnard, MD, Marc Bonnet, MD, Pierre-Yves Courand, MD, PhD, Pierre Lantelme, MD, PhD   +6 more
doaj   +1 more source

STEREOLOGICAL ESTIMATES FOR ROUGHNESS AND TORTUOSITY IN CEMENTITIOUS COMPOSITES

Image Analysis and Stereology, 2011
Relatively weak interfaces between aggregate grains and the cementitious matrix initiate the damage evolution process leading to fracture. Coalescence between nearby interface cracks is promoted by the small nearest neighbour distances in a dense random ...
Piet Stroeven
doaj   +1 more source

An efficient method of tortuosity estimation [PDF]

, 2022
The paper presents a comparative analysis of tortuosity calculations in two types of 2D random geometries: with non-overlapping circles and with overlapping squares. Both geometries were converted to binary geometries with different resolution.
Sobieski, W.
core   +1 more source

Rigid-Frame Porous Material Acoustic Attenuation on Compressor Discharge [PDF]

, 2012
Standards have limited the allowable noise levels in different situations, requiring the study of solutions at the source, in the path or the receiver. Muffler is the major factor influencing the noise of rotary compressor.
Mareze, Paulo Henrique, Pellegrini, Claudio, Lenzi, Arcanjo   +2 more
core   +1 more source

Effective ion mobility in anion exchange ionomers: Relations with hydration, porosity, tortuosity, and percolation

, 2021
The effective mobility of hydroxide, chloride and fluoride ions is reported in various anion exchange membranes (AEM) with a backbone of polysulfone (PSU) or poly (2,6-dimethyl-1,4-phenylene)oxide (PPO).
Philippe Knauth, L. Pasquini, R. Narducci, E. Sgreccia, R.-A. Becerra-Arciniegas, M. D. Di Vona   +5 more
semanticscholar   +1 more source

Impact of coronary tortuosity on coronary pressure: numerical simulation study. [PDF]

, 2012
BACKGROUND: Coronary tortuosity (CT) is a common coronary angiographic finding. Whether CT leads to an apparent reduction in coronary pressure distal to the tortuous segment of the coronary artery is still unknown.
Zhiyong Li, Chengxing Shen, Shi, Z., Liu, N., Li, Z., Li, Y., Genshan Ma, Yang Li, Yi Feng, Naifeng Liu, Cai, Y., Shen, C., Zhengtao Shi, Feng, Y., Yan Cai, Ma, G.   +15 more
core   +2 more sources

The relationship between retinal vascular tortuosity and retinal vasculitis

Journal of Ophthalmic Inflammation and Infection
Aims This study investigates the association between retinal vascular tortuosity and retinal vasculitis. Methods A retrospective review of medical records was conducted for 135 patients diagnosed with retinal vasculitis at our institution from June 2022 ...
Xiaoyan Zhang, Frances Andrea Anover, Jia-Horung Hung, Ngoc Trong Tuong Than, Azadeh Mobasserian, Aim-On Saengsirinavin, Negin Yavari, Dalia El Feky, Anh Ngoc Tram Tran, Osama Elaraby, Jingli Guo, Irmak Karaca, Woong-Sun Yoo, Amir Akhavanrezayat, Chi Mong Christopher Or, Diana V. Do, Quan Dong Nguyen   +16 more
doaj   +1 more source

Retinal venular tortuosity and fractal dimension predict incident retinopathy in adults with type 2 diabetes: the Edinburgh Type 2 Diabetes Study

Diabetologia, 2021
Our aim was to determine whether a range of prespecified retinal vessel traits were associated with incident diabetic retinopathy in adults with type 2 diabetes.
R. Forster, Emmanuel Sandoval Garcia, Anniek J. Sluiman, Sheila M. Grecian, S. McLachlan, T. MacGillivray, M. Strachan, J. Price   +7 more
semanticscholar   +1 more source