Results 11 to 20 of about 183,018 (260)
Porosity, -porosity and measures [PDF]
Nonlinearity, 2002 We show that given a σ-finite Borel regular measure μ in a metric space X, every σ-porous subset of X of finite measure can be approximated by strongly porous sets. It follows that every σ-porous set is the union of a σ-strongly porous set and a μ-null set.
M E Mera, M Mor n, D Preiss, L Zaj cek
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MOLDING PROCEDURE FOR PERVIOUS CONCRETE SPECIMENS BY DENSITY CONTROL
Case Studies in Construction Materials, 2021 Pervious concrete (PC) is a special concrete with the main objective of surface runoff management, due to its hydraulic performance and infiltration capacity. Currently, the standards and guidelines (existing) do not adequately standardize the production
Kathleen Dall Bello De Souza Risson +5 more
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Influence of activators on constitutes of diffusion layer at boronizing pressed samples from iron powder [PDF]
Hemijska Industrija, 2008 In this paper, results of experimental investigation which contributes to study of quantitative changes of porosity during chemical-thermical process, apropos boronizing of pressed samples from iron powder, with variation of boronizing mixture ...
Požega Emina D., Ivanov Svetlana Lj.
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Comparison of the approaches to assessing the compressibility of the pore space
Записки Горного института, 2022 Integral and differential approaches to determining the volumetric compression of rocks caused by changes in the stress state are considered. Changes in the volume of the pore space of rocks are analyzed with an increase in its all-round compression ...
Vitaly S. Zhukov, Yuri O. Kuzmin
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Adsorption Science & Technology, 2008 Wastewater from nuclear plants contains oxalic acid, a chelating compound used to remove surface activity. This forms complexes with radioactive cations, thereby impeding their removal by conventional techniques. In this study, oxalic acid was removed by
Narasimhan Gokulakrishnan +2 more
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Tensor compaction of porous rocks: theory and experimental verification
Записки Горного института, 2022 Compaction in sedimentary basins has been traditionally regarded as a one-dimensional process that ignores inelastic deformation in directions orthogonal to the active load.
Ivan A. Panteleev +5 more
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Frontiers in Earth Science, 2023 Calcite cement is widely existing in sandstones and can significantly affect the elastic and electrical properties of sandstones. Accordingly, understanding the effects of calcite cement on the elastic and electrical rock properties is of key importance ...
Pan Wang +4 more
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PRODUCTION OF COMPOSITE CERAMIC MATERIAL FOR THERMAL SPRAYING
Наука и техника, 2017 A composite ceramic material has been developed for thermal spraying that permits to increase wear resistance due to introduction of high-chromium steel and molybdenum in its structure, to obtain optimum porosity in the starting charge material while ...
V. A. Okovity +3 more
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The Assessment of Level of Flash Floods Threat of Urbanised Areas
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017 Flash floods (or torrential rain flooding) is another type of flood hazard which has caused casualties and significant property damages. A methodology for identification of urban areas, which can potentially be burdened by that type of flood hazard, was ...
Pavla Štěpánková +2 more
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Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW
Materials Research Express, 2020 Simulations of the welding process for butt joints using finite element analysis (FEA) of the effect of porosity are presented. The metal used was aluminium alloy (grade 2024), and the filler material was alloy ER5356.
Pattarawadee Poolperm +2 more
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