Results 51 to 60 of about 69,766 (201)

Investigation of railroad ballast particle breakage [PDF]

Pollack Periodica, 2019
Abstract This paper summarizes the authors' up-to-date results in the research topic of railway ballast particles' breakage test with individual laboratory test.
Juhász, Erika, Fischer, Szabolcs
openaire   +2 more sources

Wet granulation in laboratory-scale high shear mixers: Effect of chopper presence, design and impeller speed [PDF]

, 2011
The effect of the main means of agitation in a high shear mixer has been investigated in this study. Granulation runs have been performed on a fine cohesive microcrystalline cellulose powder (Avicel 105, d50 = 20 μm) often used as a pharmaceutical ...
Chitu, Toma Mihai, Hemati, Mehrdji, Oulahna, Driss   +2 more
core   +3 more sources

Elastoplastic constitutive model for granular materials considering meso-particle damage

Yantu gongcheng xuebao
Establishing a constitutive model for granular materials that accounts for particle shape and breakage mechanisms has been crucial for calculating the mechanical stability of earth-rock dam projects. Initially, through the triaxial compression tests, the
WANG Xiaochan 1 , LAN Hengxing 1, 2, 3, LIU Shijie 1, SUN Weifeng 1
doaj   +1 more source

Particle breakage of soil-rock aggregate based on large-scale direct shear tests

Yantu gongcheng xuebao, 2017
In the direct shear tests on soil-rock aggregate (SRA), particle breakage occurs in micro vision, which will influence its macro mechanical properties. On this basis, the laboratory large-scale direct shear tests and sieving analysis tests are conducted ...
LIU Xin-rong1, 2, TU Yi-liang 1, 2, WANG Peng 1, 2, ZHONG Zu-liang 1, 2, TANG Wen-bin 3, DU Li-bing 1, 2
doaj   +1 more source

A stability condition for turbulence model: From EMMS model to EMMS-based turbulence model

, 2013
The closure problem of turbulence is still a challenging issue in turbulence modeling. In this work, a stability condition is used to close turbulence.
Li, Jinghai, Qiu, Xiaoping, Wang, Limin, Zhang, Lin   +3 more
core   +1 more source

Influence of time-dependence on failure of echelon rock joints through a novel DEM model [PDF]

, 2015
This is an Accepted Manuscript of an article published by Taylor & Francis Group in [European Journal of Environmental and Civil Engineering] on [September 2015], available online at: http://www.tandfonline.com/10.1080/19648189.2015.1064624This article ...
Jiang, Mingjing, Rodríguez Dono, Alfonso, Shao, Jianfu, Sun, Chao, Zhang, Ning   +4 more
core   +4 more sources

Dynamics of Highly Supercooled Liquids:Heterogeneity, Rheology, and Diffusion

, 1998
Highly supercooled liquids with soft-core potentials are studied via molecular dynamics simulations in two and three dimensions in quiescent and sheared conditions.We may define bonds between neighboring particle pairs unambiguously owing to the ...
A. Onuki, A. Onuki, A. S. Aragon, A. Sappelt, Akira Onuki, B. Bernu, B. Bernu, B. J. Ackerson, B. Miller, C. Dasgupta, C. Donati, D. J. Durian, D. J. Evans, D. J. Salvino, D. N. Perera, D. Perera, D. Richter, D. Thirumalai, E. Leutheusser, E. W. Fischer, F. Fujara, F. H. Stillinger, F. H. Stillinger, F. Spaepen, G. Adam, G. Meier, H. J. M. Hanley, H. S. Chen, H. Weber, I. Chang, J. G. Kirkwood, J. H. Simmons, J. H. Simmons, J. Jäckle, J. Matsui, J. P. Hansen, K. L. Ngai, K. Maeda, K. Maeda, M. D. Ediger, M. H. Cohen, M. M. Hurley, M. P. Allen, M. T. Cicerone, M. T. Cicerone, N. Menon, P. Ray, R. Khosropour, R. M. Ernst, R. Yamamoto, R. Yamamoto, Ryoichi Yamamoto, S. A. Langer, S. Kobayashi, S. Rogge, S. S. Ghosh, S. Takeuchi, T. Muranaka, T. Muranaka, T. Okuzono, U. Bengtzelius, W. Kob, Y. Yue   +62 more
core   +1 more source

The impacts of replacing air bubbles with microspheres for the clarification of algae from low cell-density culture [PDF]

, 2014
Dissolved Air Flotation (DAF) is a well-known coagulation–flotation system applied at large scale for microalgae harvesting. Compared to conventional harvesting technologies DAF allows high cell recovery at lower energy demand.
Gonzalez Torres, Andrea, Henderson, Rita K., Jarvis, Peter, Jefferson, Bruce, Ometto, Francesco, Pozza, Carlo, Smyth, Beatrice, Villa, Raffaella, Whitton, Rachel   +8 more
core   +1 more source

Compaction and Breakage Characteristics of Crushed Stone Used as the Backfill Material of Urban Pavement Subsidence

Advances in Civil Engineering, 2020
The subsidence of urban pavement is becoming frequent accidents, and backfill is the primary means of remedy. Crushed stone is a commonly used aggregate for backfill material in engineering, and its compaction behavior under load needs to be well ...
Zhongbing Cai, Dan Zhang, Lang Shi, Zhong Chen, Biao Chen, Suyang Sun   +5 more
doaj   +1 more source

Compression characteristics and particle crushing behavior of coral sand–quartz sand mixture under confined high pressure

Yantu gongcheng xuebao, 2022
The special engineering mechanical characteristics of coral sand have been widely studied, but the coral sand in special areas is not isolated and often contains siliceous impurities to form coral sand mixture.
WANG Wei-guang 1, YAO Zhi-hua 2, LI Wan 2, ZHANG Jian-hua 3
doaj   +1 more source