Results 41 to 50 of about 947,884 (380)
Two-dimensional covalent organic frameworks with hierarchical porosity.
Chemical Society Reviews, 2020 Covalent organic frameworks (COFs) are a class of crystalline porous organic polymers assembled by connecting organic building units via covalent bonds.
Rongran Liang +3 more
semanticscholar +1 more source
Porosities and dimensions of measures [PDF]
Nonlinearity, 1999 We introduce a concept of porosity for measures and study relations between dimensions and porosities for two classes of measures: measures on $R^n$ which satisfy the doubling condition and strongly porous measures on $R$.
Maarit Järvenpää +2 more
openaire +3 more sources
Effect of Porosity and Hygrothermal Environment on FGP Hollow Spheres under Electromechanical Loads [PDF]
Journal of Applied and Computational Mechanics, 2022 Semi-analytical studies for the porosity action of a hollow sphere made of functionally graded piezoelectric material are presented. A semi-analytical technique for radial displacement is presented.
Rania Tantawy, Ashraf Zenkour
doaj +1 more source
Revista Brasileira de Ciência do Solo, 2005 Os sistemas de preparo de solo e de culturas têm influência significativa na estrutura do solo e nos fluxos de água e ar. Este trabalho objetivou avaliar os efeitos do manejo do solo sobre as propriedades relacionadas com estrutura de um Latossolo ...
Jeferson Argenton +3 more
doaj +1 more source
Instabilities in the dissolution of a porous matrix [PDF]
, 2011 A reactive fluid dissolving the surrounding rock matrix can trigger an instability in the dissolution front, leading to spontaneous formation of pronounced channels or wormholes.
A. J. C. Ladd +18 more
core +2 more sources
, 2016 Presented in this paper is a deep investigation into the defect chemistry of UiO-66 when synthesized in the presence of monocarboxylic acid modulators under the most commonly employed conditions.
Greig C. Shearer +5 more
semanticscholar +1 more source
Functionally heterogeneous porous scaffold design for tissue engineering [PDF]
, 2012 Most of the current tissue scaffolds are mainly designed with homogeneous porosity which does not represent the spatial heterogeneity found in actual tissues.
Khoda, AKM B. +2 more
core +2 more sources
Journal of Civil Engineering and Management, 2016 The influence of a type of new generation: superplasticizer (SP), anti-foaming admixture (AFA) and viscosity modifying admixture (VMA) on the air-content, workability of high performance self-compacting concrete (HPSCC) is analyzed in the paper.
Beata Łaźniewska-Piekarczyk
doaj +1 more source
Water Supply, 2022 This research study aimed at investigating the transmissibility magnitude of hydrogeologic units of Edem employing a vertical electrical sounding technique. This was as a result of the rapid increase in population and failures of water scheme projects in
Emmanuel T. Omeje +3 more
doaj +1 more source
Ambient Electrosynthesis of Ammonia: Electrode Porosity and Composition Engineering.
Angewandte Chemie, 2018 Ammonia, a key precursor for fertilizer production, convenient hydrogen carrier, and emerging clean fuel, plays a pivotal role in sustaining life on Earth. Currently, the main route for NH3 synthesis is by the heterogeneous catalytic Haber-Bosch process (
Hong Wang +13 more
semanticscholar +1 more source