Results 31 to 40 of about 75,280 (199)

Frequency-domain P-approximant filters for time-truncated inspiral gravitational wave signals from compact binaries [PDF]

open access: yes, 2000
Frequency-domain filters for time-windowed gravitational waves from inspiralling compact binaries are constructed which combine the excellent performance of our previously developed time-domain P-approximants with the analytic convenience of the ...
A. Abramovici   +67 more
core   +4 more sources

Laboratory Investigation on Shear Modulus and Damping Properties of Port Soft Clay Improved by Dynamic Compaction

open access: yesApplied Sciences
Dynamic compaction has been widely applied to reinforce soft soils in port areas due to its high efficiency and cost-effectiveness. However, a comprehensive understanding of the deformation mechanisms and stiffness evolution of treated soils under static
Chenyu Hou   +6 more
doaj   +1 more source

Determination of permanent deformation of flexible pavements using finite element model

open access: yesGrađevinar, 2022
The unbound granular material used in flexible road pavements exhibits an elastoplastic behaviour under repetitive traffic loads. Permanent deformation occurring on pavement surface under traffic load is one of the main road pavement problems affecting ...
Huseyin Karadag   +3 more
doaj   +1 more source

On the Lyman-alpha Emission of Starburst Galaxies [PDF]

open access: yes, 1993
Nearby starburst galaxies have consistently shown anomalous Ly-alpha/H-beta ratios. By re-analysing the published IUE/optical observations, we show that most starbursts present a normal Ly-alpha emission, consistent with case B recombination theory ...
Valls-Gabaud, David
core   +3 more sources

The NII spectrum of the Orion Nebula

open access: yes, 2005
The predicted emission spectrum of NII is compared with observations of permitted lines in the Orion nebula. Conventional nebular models show that the intensities of the more intense lines can be explained by fluorescence of starlight absorption with a N
Afflerbach   +52 more
core   +2 more sources

Crossover from hydrodynamic to acoustic drag on quartz tuning forks in normal and superfluid 4He [PDF]

open access: yes, 2012
We present measurements of the drag forces on quartz tuning forks oscillating at low velocities in normal and superfluid 4He. We have investigated the dissipative drag over a wide range of frequencies, from 6.5 to 600 kHz, by using arrays of forks with ...
Bradley, D. I.   +10 more
core   +1 more source

Seismic response of deep soft soil sites with varying shear wave velocities

open access: yesFrontiers in Earth Science
The variations in seismic response between deep soft soil sites with different shear wave velocities were not fully understood. This study focuses on the seismic response of deep soft soil sites in the lower reaches of the Yangtze River, China.
Xiao-Bo Peng   +5 more
doaj   +1 more source

Assessment of sustainable expanded glass granules for enhancing shallow soil stabilization and dynamic behaviour of clay through resonant column tests

open access: yesEngineering Science and Technology, an International Journal, 2023
In geotechnical engineering applications such as artificial slope fills, backfill for retaining walls and embankments are required to be as light as possible, yet more durable and provide drainage.
Seyfettin Umut Umu
doaj   +1 more source

Theoretical Framework for Characterizing Strain-Dependent Dynamic Soil Properties

open access: yesApplied Sciences, 2019
This paper proposes a theoretical framework for the characterization of the strain-dependent dynamic properties of soils. The analysis begins with an analytical constitutive model for soils under steady-state cyclic loading.
Song-Hun Chong
doaj   +1 more source

Stability chart of the triangular points in the elliptic restricted problem of three bodies

open access: yes, 2013
The possible observations of Trojan-like extrasolar planets stimulate the deeper understanding of the stability behaviour of the co-orbital resonant motion.
Kovacs, Tamas
core   +1 more source

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