Results 31 to 40 of about 135,780 (323)

Densification and crystallization behaviour of colloidal cordierite-type gels [PDF]

open access: yesJournal of the Serbian Chemical Society, 2001
Three cordierite-type gels were prepared from an aqueous solution of Mg(NO3)2, a boehmite sol and silica sols of very small particle sizes. The effect of varying the silica particle size on the crystallization and densification behaviour was ...
Petrović Rada   +4 more
doaj   +1 more source

Modeling Dry-Snow Densification without Abrupt Transition

open access: yesGeosciences, 2018
An empirical model for the densification of dry snow has been calibrated using strain-rate data from Pine Island Glacier basin, Antarctica. The model provides for a smooth transition between Stage 1 and Stage 2 densification, and leads to an analytical ...
Elizabeth Morris
doaj   +1 more source

Retaining multi-functionality in a rapidly changing urban landscape: insights from a participatory, resilience thinking process in Stockholm, Sweden

open access: yesEcology and Society, 2021
Urban social-ecological resilience research has focused on conceptual explorations, while less attention has been paid to how resilience thinking in practice may inform urban development.
Sara Borgström   +2 more
doaj   +1 more source

Aging and response properties in the parking-lot model [PDF]

open access: yes, 2000
An adsorption-desorption (or parking-lot) model can reproduce qualitatively the densification kinetics and other features of a weakly vibrated granular material.
Talbot, J., Tarjus, G., Viot, P.
core   +2 more sources

Effects of sintering temperature on W-Mo-Cu alloy prepared by large current electric field sintering

open access: yesCailiao gongcheng, 2019
The W-Mo-Cu alloy was rapidly prepared by a large current electric field sintering method at 875-1000℃. Effect of sintering temperature on microstructure, hardness and electrical conductivity was investigated. Based on the dimensional change during alloy
LIU Yan-fang   +3 more
doaj   +1 more source

Bi2O3-Modified Ceramics Based on BaTiO3 Powder Synthesized in Water Vapor

open access: yesInorganics, 2020
Bi2O3 was investigated in the role of a modifier for BaTiO3 powder synthesized in a water vapor atmosphere at 200 °C and 1.55 MPa. Modification was aimed at increasing the sinterability of the powder as well as improving the structural and ...
Anastasia Kholodkova   +7 more
doaj   +1 more source

Density-Aware, Energy- and Spectrum-Efficient Small Cell Scheduling

open access: yesIEEE Access, 2019
Future mobile networks have to be densified by employing small cells to handle the upsurge in traffic load. Although the amount of energy each small cell consumes is low, the total energy consumption of a large-scale network may be enormous.
Shahram Mollahasani, Ertan Onur
doaj   +1 more source

Improving the Distribution of Densities in Southern California  [PDF]

open access: yes, 2020
Many of the biggest transportation challenges in Southern California arise not due to its overall density but due to the lack of concentration of densities.
Kim, Jae Hong, Li, Xiangyu
core  

Mechanical properties and energy absorbing capabilities of Z-pinned aluminum foam sandwich [PDF]

open access: yes, 2019
Aluminum foam sandwich (AFS) structures are suitable for impact protection in lightweight structural components due to their specific energy absorption capability under compression.
Kadkhodapour, Javad   +2 more
core   +2 more sources

Effects of hot isostatic pressing temperature on casting shrinkage densification and microstructure of Ti6Al4V alloy [PDF]

open access: yesChina Foundry, 2017
The Ti6Al4V alloy castings were produced by the investment casting process, and the hot isostatic pressing (HIP) was used to remove shrinkage from castings. The processing pressure and holding time for HIP were 150 MPa and 20 min, respectively.
Qian Xu, Jian-xin Zhou, Hai Nan
doaj   +1 more source

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