Results 21 to 30 of about 173,162,232 (232)

Using a Fractal Analysis and Polarization Method for Phase Identification in Three-Component Seismograms

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2010
This study presents the automatic P-wave and S-wave arrivals picking algorithm which is essentially based on the fractal dimension and polarized method.
Boi-Yee Liao   +2 more
doaj   +1 more source

Source parameters of the M 6.5 Skyros Island (North Aegean Sea) earthquake of July 26, 2001

open access: yesAnnals of Geophysics, 2002
Teleseismic body wave modelling, time domain moment tensor inversion of regional waveforms and spectral analysis of the far-field P-wave pulses are used to derive the source parameters of the July 26, 2001 Skyros earthquake (M 6.5).
A. Kiratzi   +3 more
doaj   +1 more source

DiTingMotion: A deep-learning first-motion-polarity classifier and its application to focal mechanism inversion

open access: yesFrontiers in Earth Science, 2023
Accurate P-wave first-motion-polarity (FMP) information can contribute to solving earthquake focal mechanisms, especially for small earthquakes, to which waveform-based methods are generally inapplicable due to the computationally expensive high ...
Ming Zhao   +8 more
doaj   +1 more source

Meaning of the wave function [PDF]

open access: yes, 2010
We investigate the meaning of the wave function by analyzing the mass and charge density distributions of a quantum system. According to protective measurement, a charged quantum system has effective mass and charge density distributing in space ...
Gao, Shan, Shan Gao
core   +1 more source

Repetitive H-Wave® device stimulation and program induces significant increases in the range of motion of post operative rotator cuff reconstruction in a double-blinded randomized placebo controlled human study

open access: yesBMC Musculoskeletal Disorders, 2009
Background Albeit other prospective randomized controlled clinical trials on H-Wave Device Stimulation (HWDS), this is the first randomized double-blind Placebo controlled prospective study that assessed the effects of HWDS on range of motion and ...
Kerner Mallory M   +8 more
doaj   +1 more source

A Novel Time–Frequency Similarity Method for P-Wave First-Motion Polarity Detection

open access: yesSensors
P-wave first-motion polarity is a critical parameter for determining earthquake focal mechanisms. Extracting relative P-wave arrival times and polarity information using waveform cross-correlation techniques can enhance the accuracy of earthquake ...
Yanji Yao   +4 more
doaj   +1 more source

The Effective M3Y Residual Interaction In 41Ca As a Nuclear Diffraction Grating of Electrons

open access: yesمجلة بغداد للعلوم, 2022
The total and individual multipole moments of  magnetic electron scattering form factors in 41Ca  have been investigated using a widely successful model which is the nuclear shell model configurations keeping in mind of 1f7/2 subshell as an L-S shell ...
Rafah M. Hussien, Firas Z. Majeed
doaj   +1 more source

2010 Annual Report

open access: yes
Oregon Wave Energy Trust (OWET) is a nonprofit public-private partnership funded by the Oregon Innovation Council. Its mission is to support the responsible development of wave energy in Oregon. OWET emphasizes an inclusive, collaborative model to ensure
Oregon Wave Energy Trust
core   +6 more sources

STUDENTS’ UNDERSTANDING OF FUNDAMENTAL CONCEPTS OF MECHANICAL WAVE

open access: yesJurnal Pendidikan Fisika Indonesia, 2016
Contrast to force and motion concepts, students’ difficulties related to physics concepts underlying mechanical wave propagation has getting less attention in physics education research.
S. Sutopo
doaj   +1 more source

Amplification Behaviour of Compressional Waves in Unconsolidated Sediments

open access: yesFrontiers in Earth Science, 2022
Similar to horizontal earthquake motions, vertical motions are amplified depedent on the local site conditions which can be critical for the safety of certain structures.
Janneke van Ginkel   +5 more
doaj   +1 more source

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