The Bekenstein-Milgrom gravity theory with a modified Poisson equation is tested here for the existence of triaxial equilibrium solutions. Using the nonnegative least square method, we show that self-consistent triaxial galaxies exist for baryonic models with a mild density cusp ρ ∼ Σ r . Self-consistency is achieved for a wide range of central concentrations, Σ ∼ 10 − 1000M⊙pc , representing l...

The triaxial test is probably the most important fundamental laboratory test for geotechnical engineers. The objective of the study presented here was to gain insight into the micro-scale interactions experienced by particles during a triaxial test using the distinct element method (DEM). To achieve this objective, a novel DEM modelling environment to simulate triaxial tests on ideal granular m...

BACKGROUND Recanalization occurs occasionally, following coil embolization of pulmonary arteriovenous malformations (PAVM), and can lead to ischemic stroke; therefore re-embolization is important. A 1.9-Fr. no-taper microcatheter that can be inserted into a 2.7-Fr. microcatheter (named the triaxial system) has recently become available, and contributes to super-selective catheterization for sma...

Research on the nature of the vibration data collected from helicopter transmissions during flight experiments has led to several crucial observations believed to be responsible for the high rates of false alarms and missed detections in aircraft vibration monitoring systems. This work focuses on one such finding, namely, the need to consider additional sources of information about system vibra...

This study provides new estimates for the orientation of a geometrically best fitting lunar triaxial ellipsoid with respect to the mean Earth/polar axis reference frame calculated from the footprint positions of the Chang'E-1 (CE-1), SELenological and ENgineering Explorer (SELENE) laser altimetry measurements and Unified Lunar Control Networks 2005, (ULCN 2005) station coordinates. The semi-pri...

Abstract In this paper we show DEM simulations of static and cyclic large triaxial tests on a sample railway ballast. The is reconstructed from X-Ray tomography images an untested laboratory sample, recovered by impregnation with epoxy resin. Measurements both shape fabric are carried out; the shows high anisotropy particle orientations due to preparation procedure heterogeneity. A model then g...

The high-cycle accumulation (HCA) model by Niemunis et al. allows the prediction of mechanical response sand under millions load cycles . It has originally been developed with focus on drained high-cyclic loading assuming a constant strain amplitude, which can be periodically updated. In order to apply it for partially or fully undrained conditions, an adaptive definition amplitude is proposed ...

Carbonate sand is characterized by the presence of fragile grains, which may influence their mechanical response due to imposed loading; especially cyclic loading. The shear wave velocity (VS) provides relevant information for design foundation inserted in this type soil, can be obtained from laboratory tests with use bender elements (BE). This paper aims evaluate VS value a carbonate triaxial ...

A typical flexible pavement structure consists of the surface, base, sub-base and subgrade soil. The loading traffic is transferred from the top layer with higher stiffness to the layer below with less stiffness. Under normal traffic loading, the behaviour of flexible pavement is very complex and can be predicted by using the repeated load triaxial test equipment in the laboratory. However, the...

The dynamic properties of coarse granular soils have been much less studied than in sands. From a database 14 gravel samples subjected to cyclic triaxial tests, available relationships are and new proposed estimate the normalised shear modulus G/Gmax damping ratio D as function strain γ. effect confining stress, fines content, uniformity coefficient loading frequency on variation G/ Gmax versu...