Results 101 to 110 of about 31,992 (227)
Inversion of stellar statistics equation for the Galactic Bulge [PDF]
, 1999 A method based on Lucy (1974, AJ 79, 745) iterative algorithm is developed to invert the equation of stellar statistics for the Galactic bulge and is then applied to the K-band star counts from the Two-Micron Galactic Survey in a number of off-plane ...
Garzon, F. +4 more
core +4 more sources
A new smooth failure criterion for concrete inspired by Lubliner's condition
Structural Concrete, EarlyView.Abstract A new failure criterion with 10 parameters is proposed, based on Lubliner's idea of joining two Drucker–Prager cones. The novelty lies in the way of introducing deviatoric shape variation: through two Podgórski's functions. This feature allows for improving plane stress cross‐section's compatibility with experimental data.
Inez Kamińska, Aleksander Szwed
wiley +1 more source
Meitan xuebaoIn the process of deep coal mining, the unloading stress path and unloading rate of deep rock are complicated and changeable due to the influence of excavation and unloading.
Zhixi LIU +3 more
doaj +1 more source
State-dependent fractional plasticity model for the true triaxial behaviour of granular soil
Archives of Mechanics, 2019 The fractional plasticity was proposed to model the stress-strain behaviour of granular soils, but only within the scope of classical triaxial loading condition.
Y. Sun, W. Sumelka
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Fatigue &Fracture of Engineering Materials &Structures, EarlyView.ABSTRACT Metal additive manufacturing (AM) provides a pathway for creating highly optimized components that would be difficult to produce using traditional manufacturing methods. However, regardless of printing parameters or postprocessing, porosity remains a prevalent challenge in AM components because strain concentrates in the vicinity of the pore ...
Erick Adan Ramirez +3 more
wiley +1 more source
Systematic Errors in the Hubble Constant Measurement from the Sunyaev-Zel'dovich effect
, 2007 The Hubble constant estimated from the combined analysis of the Sunyaev-Zel'dovich effect and X-ray observations of galaxy clusters is systematically lower than those from other methods by 10-15 percent.
Hajime Kawahara +9 more
core +1 more source
Extended Kelvin–Voigt Model for Simulating Thermally Accelerated Creep in Fine‐Grained Soils
International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 4, Page 1843-1854, March 2026.ABSTRACT The subsurface undergoes temperature variations in many situations due to anthropogenic and natural causes, which strongly influence the long‐term behavior of soils. These phenomena can involve temperature anomalies in the ground across distances of a few meters, as in the case of nuclear waste repositories, to distances encompassing entire ...
Giulia Capati +2 more
wiley +1 more source
The Strength Criterion for Rocks Under True Triaxial Stress
Procedia Structural Integrity, 2021 Abstract A new criterion has been developed for the strength of rocks in the condition of true triaxial stress. The criterion parameters are calculated based on the results of a complex determination of the ultimate strength, which includes uniaxial tensile, uniaxial compression and biaxial compression.
openaire +1 more source
Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 3, Page 933-962, March 2026.ABSTRACT This review investigates the influence of graphene on the fatigue performance of polymer‐based composites, focusing on both unreinforced matrices and fiber‐reinforced composite laminates. Graphene materials, including nanoplatelets, graphene oxide, and hybrid nanostructures, offer exceptional mechanical, electrical, and barrier properties that
João M. Parente +3 more
wiley +1 more source
Electrospun Composite Lavandula Angustifolia Mill. Extract/PVP Nanofibers
Macromolecular Materials and Engineering, Volume 311, Issue 2, February 2026.This study presents novel fast‐dissolving nanofibers electrospun from polyvinylpyrrolidone (PVP) loaded with crude lavender extract. The fibers form an amorphous solid dispersion, disintegrate within 1.5 s, and release 70%–90% of their payload within 5 min, significantly outperforming the pure extract.
Nan Yang +3 more
wiley +1 more source