Results 51 to 60 of about 1,418,898 (156)

Dispersion-managed soliton fiber laser with random dispersion, multiphoton absorption and gain dispersion

, 2018
We address the generation and interaction of dispersion-managed dissipative solitons (DMDS) in a model of fiber lasers with the cubic-quintic nonlinearity, multiphoton absorption and gain dispersion.
B. A. Malomed (14357538), Soumendu Jana (749316), Rajib Pradhan (17494503), Gurkirpal Singh Parmar (17494500)   +3 more
core   +1 more source

Research on Longitudinal Thermoelastic Waves in an Orthotropic Anisotropic Hollow Cylinder Based on the Thermoelastic Theory of Green–Naghdi

Applied Sciences
At present, many high-temperature pipelines need to carry out non-stop detection under high-temperature conditions, and an ultrasonic guided wave is undoubtedly one of the solutions with the highest potential to solve the problem.
Jinjie Zhou, Xingwang Zhang, Yang Zheng, Xingquan Shen, Yuanxin Li   +4 more
doaj   +1 more source

Particle filtering for dispersion curve tracking in ocean acoustics

, 2008
A particle filtering method is developed for dispersion curve extraction from spectrograms of broadband acoustic signals propagating in underwater media.
Zoi-Heleni Michalopoulou, Michalopoulou, Zoi Heleni, Ivan Zorych, Zorych, Ivan   +3 more
core   +1 more source

Dispersion Velocity Profiles: Experimental Study with Artificial Void Simulating Different Void Ratios in Cold Joints

Proceedings
This study evaluates the bonding condition of concrete slabs with varying porosity levels (20% to 80%) at cold joint interfaces by analyzing surface wave dispersion velocity profiles.
Hong-Yao Cai, Chia-Chi Cheng, Yung-Chiang Lin   +2 more
doaj   +1 more source

Correlation of the distribution curve with the dispersion curve of cellulose nitrate

, 2012
The dielectric-dispersion, curve of cellulose nitrate may be obtained over a 1ow frequency range in h-butyl acetate. The parallel resistance method is used for capacitance measurements is a nickel cell.
Wilson, Clifton Herbert
core  

Application of Different Algorithms to an Inversion of Rayleigh Wave Dispersion Curve

, 2014
Inversion of surface wave dispersion curve is a important process for Vs analysis. We tried three algorithms which are the genetic algorithm (GA), least squared method (LSM) and neighbourhood algorithm (NA).
E. Pamuk, Dogru, F., Pamuk, E., F. Dogru
core   +1 more source

Dipole Flexural Wave Dispersion Correction Method Based on Fully Connected Deep Neural Network

Cejing jishu
In dipole acoustic logging, the dispersion of flexural waves complicates shear wave velocity extraction. Traditional dispersion correction algorithms rely on repeated forward modeling of the dispersion equation, which is extremely time-consuming.
Peng Shuo, Zhang Chuanju, Cong Ping, Ding Huaishuo   +3 more
doaj   +1 more source

Dispersion curve calculation in viscoelastic tissue-mimicking materials using non-parametric, parametric, and high-resolution methods. [PDF]

Ultrasonics, 2021
Kijanka P, Urban MW.
europepmc   +1 more source

SIMULASI RELASI DISPERSI KEKISI KRISTAL -Simulation of Dispersion Curve on the Crystal Lattices [PDF]

, 2000
A program for simulation of dispersion curve on the various crystal lattices has been made in Pascal. Many formulations were treated by illustration of an ideal crystal in the harmonic approximation.
Upik Nurbaiti , Sumartono Prawirosusanto , Kamsul Abraha
core   +2 more sources

Barely visible impact damage identification in a 3D core sandwich structure

Computer Assisted Methods in Engineering and Science, 2018
3D core sandwich structure (3DCSS) is a popular lightweight construction material in the automotive, aerospace and marine industries. However, barely visible low-speed impact-damage (BVLID) may occur in the 3DCSS due to foreign-object-impact that can ...
Shirsendu Sikdar, Wiesław Ostachowicz, Paweł Kudela, Maciej Radzieński   +3 more
doaj   +1 more source