Results 31 to 40 of about 19,778 (271)

Quantum model for supercontinuum generation process

open access: yesScientific Reports, 2022
A quantum theory is established for the propagation of electromagnetic waves in highly nonlinear dispersive optical fibers. By applying the method recently presented dispersion terms and retarded response of the medium are included for the propagation of
A. Safaei Bezgabadi, M. A. Bolorizadeh
doaj   +1 more source

Prediction of surface displacement caused by shield construction in soil-rock composite strata

open access: yesYantu gongcheng xuebao, 2023
When the shield tunnel passes through the soil-rock composite strata, it is easy to cause surface subsidence. In order to explore its law, the convergence mode of shield excavation face in a composite stratum is analyzed. The influences of layered strata
QI Yongjie 1, 3, ZHU Jiancai 2, 4, ZHOU Jian 1, 3, ZHOU Sijian 1, 3, LI Dongtai 5, WEI Gang 6, 7, 8
doaj   +1 more source

Stochastic resonance in electrical circuits—II: Nonconventional stochastic resonance. [PDF]

open access: yes, 1999
Stochastic resonance (SR), in which a periodic signal in a nonlinear system can be amplified by added noise, is discussed. The application of circuit modeling techniques to the conventional form of SR, which occurs in static bistable potentials, was ...
Luchinsky, D. G.   +7 more
core   +1 more source

Stochastic resonance in electrical circuits—I: Conventional stochastic resonance. [PDF]

open access: yes, 1999
Stochastic resonance (SR), a phenomenon in which a periodic signal in a nonlinear system can be amplified by added noise, is introduced and discussed. Techniques for investigating SR using electronic circuits are described in practical terms.
Luchinsky, D. G.   +7 more
core   +1 more source

Measurement and Analysis of Settlement Induced by Rectangular Pipe Jacking in Silt Stratum

open access: yesAdvances in Materials Science and Engineering, 2021
The large-scale rectangular pipe jacking technology has attracted more and more attention in the construction of urban underground pipe galleries, especially the problem of prediction and control of the surface settlement. Taking the pipe gallery project
Jun Tang, Shengcai Li, Yongfu Zhu
doaj   +1 more source

Long Distance Energy Correlations in Random Media [PDF]

open access: yes, 1983
This thesis considers the long distance motion of waves in a random medium. Using the geometrical optics approximation and a stochastic limit theorem, we find evolution equations for rays and for energy correlations, in two and three dimensions.
Zwillinger, Daniel Ian
core   +1 more source

Prediction model and application of three-dimensional ground surface settlement induced by tunnel excavation considering time effect

open access: yes矿业科学学报, 2019
It is difficult to consider the change of settlement along with time by using stochastic medium theory in the settlement prediction process in subway construction. A new settlement-time model is proposed.
Liu Bo, Yang Weihong
doaj   +1 more source

The encoding of stochastic regularities is facilitated by action-effect predictions

open access: yesScientific Reports, 2021
Our brains continuously build and update predictive models of the world, sources of prediction being drawn for example from sensory regularities and/or our own actions.
Betina Korka   +2 more
doaj   +1 more source

Retrieving the Infected Area of Pine Wilt Disease-Disturbed Pine Forests from Medium-Resolution Satellite Images Using the Stochastic Radiative Transfer Theory

open access: yesRemote Sensing, 2022
Pine wilt disease (PWD) is a global destructive threat to forests which has been widely spread and has caused severe tree mortality all over the world. It is important to establish an effective method for forest managers to detect the infected area in a large region. Remote sensing is a feasible tool to detect PWD, but the traditional empirical methods
Xiaoyao Li   +8 more
openaire   +2 more sources

2-D And 3-D Analysis of Stochastic, Elastic Soil Medium

open access: yesEngineering Transactions, 2015
The paper presents a stochastic description of a three-dimensional soil medium and its modelling under plane strain conditions. The main aim of the paper is to work out a computational model enabling incorporation of three-dimensional variability of soil
J. Przewłócki, J. Górski
doaj   +1 more source

Home - About - Disclaimer - Privacy