Results 11 to 20 of about 1,910,612 (125)
Plane wave diffraction by a rational wedge [PDF]
, 1986 In this paper new expressions for the acoustic field produced when a plane wave source of sound is diffracted by a soft, hard or mixed soft/hard wedge whose angle can be expressed as a rational multiple of are given. The solution is expressed in terms of
Rawlins, A D
core +6 more sources
Wave Climate, Geotechnical and Geophysical Analysis of the Tillamook Jetties [PDF]
Wave Energy AS (WE) is an ocean energy company from Norway established to develop, test, market and commercialize the patented SSG™ wave energy converter technology.
Wave Energy AS, Bakke, Monica
core +6 more sources
High frequency diffraction of an electromagnetic plane wave by an imperfectly conducting rectangular cylinder [PDF]
, 2011 Copyright @ 2011 IEEEWe shall consider the the problem of determining the scattered far wave field produced when a plane E-polarized wave is incident on an imperfectly conducting rectangular cylinder.
Rawlins, AD
core +7 more sources
Plane waves: to infinity and beyond! [PDF]
Classical and Quantum Gravity, 2002 We describe the asymptotic boundary of the general homogeneous plane wave spacetime, using a construction of the `points at infinity' from the causal structure of the spacetime as introduced by Geroch, Kronheimer and Penrose. We show that this construction agrees with the conformal boundary obtained by Berenstein and Nastase for the maximally ...
Marolf, D., Ross, S. F.
openaire +4 more sources
Wave Motion Analysis in Plane via Hermitian Cubic Spline Wavelet Finite Element Method
Shock and Vibration, 2020 A plane Hermitian wavelet finite element method is presented in this paper. Wave motion can be used to analyze plane structures with small defects such as cracks and obtain results.
Xiaofeng Xue +3 more
doaj +1 more source
地球与行星物理论评, 2021 Since Aki (1957) proposed the spatial autocorrelation (SPAC) technology based on the microtremor, the SPAC technique has been independently developed and widely used to infer the S wave velocity at the shallow structure in the field of civil engineering.
Laiyu Lu
doaj +1 more source
Plane Wave Reverse Time Image for Nondestructive Tests
IEEE Access, 2023 Reverse time migration (RTM) has been a popular method in industry duo to its ability of imaging complex subsurface and no dip restriction. However, RTM based on full matric capture (FMC) data is limited by the time cost of the calculation and cannot be ...
Wanqiu Zheng, Xiaohong Meng, Jian Wang
doaj +1 more source
Unique Determination of the Shape of a Scattering Screen from a Passive Measurement
Mathematics, 2020 We consider the problem of fixed frequency acoustic scattering from a sound-soft flat screen. More precisely, the obstacle is restricted to a two-dimensional plane and interacting with an arbitrary incident wave, it scatters acoustic waves to three ...
Emilia Blåsten +2 more
doaj +1 more source
Generation and Analysis of Ultrasound Images Using Plane Wave and Sparse Arrays Techniques
Sensors, 2018 Ultrasonic imaging is one of the most important techniques to help medical diagnosis. However, obtaining high quality images requires the acquisition, processing, and storage of a large amount of data.
Nivaldo T. Schiefler +5 more
doaj +1 more source
Solve the passive interference of UHF transmission lines based on LE-PO method
The Journal of Engineering, 2018 On the research about the ultra-high frequency (UHF) re-radiation interference (RRI) from the power lines, traditional high-frequency algorithms need excessive computing resources or have a bad calculation precision.
Bo Tang, Yaowei Li, Hansheng Huang
doaj +1 more source