The association between transit accessibility and space-time flexibility of shopping travel: On the moderating role of I...
status: published
A search for the determinants of students' educational expectations for higher education in four European cities : the r...
Social inequality in students' educational expectations, a strong predictor of educational attainment, differs substantially between countries. Although education system characteristics are translated into school composition effects, the school level is often forgotten in comparative research. Moreover, to explain school effects, we introduce the c...
Critical comparison of polydisperse kinetic theories using bidisperse DEM data
Kinetic theories have been developed to describe the hydrodynamics of polydisperse granular flows under different theoretical assumptions. In this study, six species theories are assessed using the DEM data obtained from simple shear flow containing bidisperse particles with low and moderate solid vol-ume fraction (Galvin, 2007). It was shown that ...
Critical comparison of polydisperse kinetic theories using bidisperse DEM data
Kinetic theories have been developed to describe the hydrodynamics of polydisperse granular flows under different theoretical assumptions. In this study, six species theories are assessed using the DEM data obtained from simple shear flow containing bidisperse particles with low and moderate solid vol-ume fraction (Galvin, 2007). It was shown that ...
Hydrogen embrittlement micromechanisms and direct observations of hydrogen transportation by dislocations during deforma...
The hydrogen embrittlement micromechanisms and the effect of carbon interstitial on hydrogen distribution were characterized in Fe40Mn40Ni10Cr10 and Fe38Mn41Ni10Cr10C1 medium entropy alloy. Ex-situ microstructural observations revealed that the segregation of carbon on grain boundaries suppresses hydrogen from being trapped in the grain boundaries ...
CFD-DEM simulation of polydisperse gas-solid flow of Geldart A particles in bubbling micro-fluidized beds
Polydisperse particles are ubiquitous, yet their unique roles are inadequately understood. In this study, CFD-DEM study on the fluidization of polydisperse particles in bubbling micro-fluidized beds was performed. The method was firstly validated by the experimentally measured bed expansion characteristics and voidage of emulsion phase. Detailed an...
CFD-DEM simulation of polydisperse gas-solid flow of Geldart A particles in bubbling micro-fluidized beds
Polydisperse particles are ubiquitous, yet their unique roles are inadequately understood. In this study, CFD-DEM study on the fluidization of polydisperse particles in bubbling micro-fluidized beds was performed. The method was firstly validated by the experimentally measured bed expansion characteristics and voidage of emulsion phase. Detailed an...
Precipitate dissolution during deformation induced twin thickening in a CoNi-base superalloy subject to creep
The tensile creep performance of a polycrystalline Co/Ni-base superalloy with a multimodal γ distribution has been examined at 800◦C and 300 MPa. The rupture life of the alloy is comparable to that of RR1000 tested under similar conditions. Microstructural examination of the alloy after testing revealed the presence of continuous γ precipitates and...
An effectiveness factor model for slurry phase olefin polymerizations
The multigrain model (MGM) is the most widely used single-particle model, giving a detailed description of phenomena during olefin polymerization. However, the detailed modeling of the diffusion-reaction process inside the catalyst particles requires solving a large number of ordinary differential equations, which is unsuitable for coupling with mu...
An effectiveness factor model for slurry phase olefin polymerizations
The multigrain model (MGM) is the most widely used single-particle model, giving a detailed description of phenomena during olefin polymerization. However, the detailed modeling of the diffusion-reaction process inside the catalyst particles requires solving a large number of ordinary differential equations, which is unsuitable for coupling with mu...
