Results 141 to 150 of about 116,061 (328)

Triaxial compression tests on a crushable sand in dry and wet conditions [PDF]

open access: yes, 2015
A calcareous sand from the Persian Gulf is subjected to a series of dry and fully drained saturated triaxial shear tests. The samples are prepared at relative densities of 65% and either left dry or saturated. They are consolidated to confining pressures
Haegeman, Wim, Van Impe, PO, Wils, L
core   +1 more source

Multiobjective Numerical Analysis of Thermal and Fluid Dynamics Performance of a Vertical Helical Earth–Air Heat Exchanger Using the TOPSIS Method

open access: yesHeat Transfer, EarlyView.
ABSTRACT The present work numerically investigates an Earth–Air Heat Exchanger (EAHE) of the vertical helical (VH) type, with regard to the prevailing climate and soil attributes of Rio Grande city, in southern Brazil, through the variation of its pitch between the helicoids (Ph), with constant air flow and soil conditions.
Andre Luis Razera   +6 more
wiley   +1 more source

LARGE DEFORMATION THEORY IN GEOMECHANICS - INFLUENCE OF KINEMATIC NONLINEARITY ON THE RESULTS OF SOME CHARACTERISTIC GEOTECHNICAL CALCULATIONS

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering
The geotechnical engineering calculations are usually carried out according to the small deformation and displacement theory (infinitesimal strain theory) i.e. first-order theory.
Borko Miladinović
doaj   +1 more source

One-dimensional compression of a crushable sand in dry and wet conditions [PDF]

open access: yes, 2015
This paper presents the results of a series of dry and wet one-dimenional compression tests on a calcareous sand from the Persian Gulf. Calcareous grains crush more easily compared to silica grains, a fact that is mainly attributed to their angular shape
Haegeman, Wim   +2 more
core   +1 more source

Seasonal variation in bay‐marsh sediment exchange through a back‐barrier salt marsh tidal creek

open access: yesLimnology and Oceanography, EarlyView.
Abstract Salt marsh resilience to sea‐level rise largely depends on the balance of sediment exchanges with surrounding bays. In this study, we investigate mechanisms that determine residual sediment fluxes using continuous measurements of bay‐marsh sediment exchange conducted in a tidal creek spanning 13 months (753 tidal cycles) in an intertidal marsh
Gregg A. Snedden, S. Jarrell Smith
wiley   +1 more source

Airport veer-off risk assessment: An italian case study [PDF]

open access: yes, 2017
The objective of this paper is to assess the veer-off risk of an Italian airport that is characterized for having near 12,000 annual movements. The name of this airport is not disclosed for security purposes.
Cantisani, Giuseppe   +2 more
core  

NExT‐LF: A Novel Operational Modal Analysis Method via Tangential Interpolation

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Operational modal analysis (OMA) is vital for identifying modal parameters under real‐world conditions, yet existing methods often face challenges with noise sensitivity and stability. This study introduces NExT‐LF, a novel method that combines the well‐known Natural Excitation Technique (NExT) with the Loewner Framework (LF). NExT enables the
Gabriele Dessena   +3 more
wiley   +1 more source

Anisotropy effects on the undrained stability of cuts in clays [PDF]

open access: yes, 2019
It has long been recognised that soils are generally anisotropic with some of their properties varying depending on the direction of measurement. In particular, strength anisotropy should be a main concern in relation with the stability assessment of ...
Conesa, Sergi   +2 more
core  

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