Results 11 to 20 of about 1,418,898 (156)

Relative price variability and the Philips curve: Evidence from Turkey [PDF]

open access: yes, 2008
We argue that relative price changes are a key component of the Phillips curve relationship between inflation and output. Building on work by Ball and Mankiw, we propose including measures of the variances and skewness of relative price adjustment in an ...
Çatik, AN, Önder, AÖ, Martin, C
core   +4 more sources

Ultrasonic guided wave detection of U-shaped pipeline [PDF]

open access: yesMATEC Web of Conferences, 2020
The guided waves in the elbow was analyzed using semi- analytical finite element method, which was used to calculate the dispersion curves, along with the vibration deformation and energy flow density distribution of the elbow cross-section.
Zhu Longxiang   +3 more
doaj   +1 more source

Inversion of Rayleigh Wave Dispersion Curve Extracting from Ambient Noise Based on DNN Architecture

open access: yesApplied Sciences, 2023
The inversion of the Rayleigh wave dispersion curve is a crucial step in obtaining the shear wave velocity (VS) of near-surface structures. Due to the characteristics of being ill-posed and nonlinear, the existing inversion methods presented low ...
Qingsheng Meng   +3 more
doaj   +1 more source

Influence of Physical Parameters of Coal Seam on “Cross” Phenomenon of Rayleigh In-seam Wave Dispersion Curve

open access: yesMeikuang Anquan, 2020
Dispersion curves of Rayleigh channel waves may have “cross” between the fundamental and first higher order modes either in the phase velocities or in group velocities in the low frequency band.
HE Daxi, ZHU Peimin, SHEN Suishui, CAI Wei, WANG Wengang
doaj   +1 more source

A Weighted Average of Multiple Inversions of Rayleigh Wave Dispersion Curve Using Particle Swarm Optimization for Geotechnical Site Characterization

open access: yesIndonesian Journal of Applied Physics, 2023
Shear wave velocity is an important parameter in geotechnical engineering for studying liquefaction, finding bedrock for the basement of a building, and figuring out the presence of subsurface cavities.
Jamhir Safani   +4 more
doaj   +1 more source

Tracer Dispersion in Rough Open Cracks [PDF]

open access: yes, 1998
Tracer dispersion is studied in an open crack where the two rough crack faces have been translated with respect to each other. The different dispersion regimes encountered in rough-wall Hele-Shaw cell are first introduced, and the geometric dispersion ...
Plouraboué, Franck   +2 more
core   +1 more source

Seismic Interferometry Method Based on Hierarchical Frequency Fusion and Its Application in Microtremor Survey

open access: yesApplied Sciences, 2023
Site velocity structure determination and stratigraphic division are important purposes of microtremor survey, and the precision of dispersion curves is an important factor affecting the accuracy of microtremor survey.
Xingang Mou   +5 more
doaj   +1 more source

Inversion of microtremor recordings dispersion curve based on geological unit

open access: yes矿业科学学报, 2022
The urban microtremor exploration technology is a method that detects urban underground structures by using the weak vibration of environment.The surface wave is dominant in the microtremor recordings, and the surface wave dispersion curve can be ...
Zhao Hongpeng, He Dengke, Hong Yü
doaj   +1 more source

Application of Microtremor Survey Technology in a Coal Mine Goaf

open access: yesApplied Sciences, 2022
Goafs are one of the main factors that endanger the safety of mining areas, leading to roadway collapse, land subsidence and other problems. Determining how to detect goafs accurately and efficiently is an important issue faced in engineering geophysical
Chuantao Yu, Zheng Wang, Mingyu Tang
doaj   +1 more source

Mode dispersion and delay characteristics of optical waveguides using equivalent TL circuits [PDF]

open access: yes, 2005
A new analysis leading to an exact and efficient algorithm is presented for calculating directly and without numerical differentiation the mode dispersion characteristics of cylindrical dielectric waveguides of arbitrary refractive-index profile. The new
Boucouvalas, Anthony C.   +3 more
core   +2 more sources

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