Results 21 to 30 of about 737,269 (351)

Comparison of the approaches to assessing the compressibility of the pore space

open access: yesЗаписки 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
doaj   +1 more source

Modeling of multifunctional porous tissue scaffolds with continuous deposition path plan [PDF]

open access: yes, 2012
A novel modeling technique for porous tissue scaffolds with targeting the functionally gradient variational porosity with continuous material deposition planning has been proposed.
Khoda, AKM B.   +4 more
core   +1 more source

Tensor compaction of porous rocks: theory and experimental verification

open access: yesЗаписки 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
doaj   +1 more source

Elastic and electrical properties of calcite-cemented artificial sandstones based on a new manufacturing method

open access: yesFrontiers 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
doaj   +1 more source

Quality Assurance Testing for Screening Defective Aluminum Die-cast Rotors of Squirrel Cage Induction Machines [PDF]

open access: yes, 2018
The recent trend in squirrel cage induction motor manufacturing is to replace fabricated copper rotors with aluminum die-cast rotors to reduce manufacturing cost to stay competitive in the global market. Porosity in aluminum die-cast squirrel cage rotors
Gyftakis, Konstantinos N.   +4 more
core   +1 more source

PRODUCTION OF COMPOSITE CERAMIC MATERIAL FOR THERMAL SPRAYING

open access: yesНаука 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
doaj   +1 more source

The Assessment of Level of Flash Floods Threat of Urbanised Areas

open access: yesActa 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
doaj   +1 more source

Effects of ultrasound on polymeric foam porosity [PDF]

open access: yes, 2008
A variety of materials require functionally graded cellular microstructures whose porosity is engineered to meet specific applications (e.g. mimic bone structure for orthopaedic applications; fulfil mechanical, thermal or acoustic constraints in ...
Blitz   +23 more
core   +2 more sources

Modelling urban floods using a finite element staggered scheme with an anisotropic dual porosity model [PDF]

open access: yes, 2019
In porosity models for urban flooding, artificial porosity is used as a statistical descriptor of the urban medium. Buildings are treated as subgrid-scale features and, even with the use of relatively coarse grids, their effects on the flow are accounted
Viero, Daniele P.
core   +1 more source

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