Results 81 to 90 of about 2,264,426 (241)

A Nested Ensemble Filtering Approach for Parameter Estimation and Uncertainty Quantification of Traffic Noise Models

open access: yesApplied Sciences, 2019
In this study, a nested ensemble filtering (NEF) approach is advanced for uncertainty parameter estimation and uncertainty quantification of a traffic noise model.
Kai Huang, Yurui Fan, Liming Dai
doaj   +1 more source

Wind-load, pressure and velocity measurements: post processing and discussion

open access: yesEPJ Web of Conferences, 2014
Because of the practical importance of bluff bodies subjected fluid flow, fluid dynamics around two-dimensional bluff bodies, especially circular cylinders, has been studied in light of three major parameters, namely flow-induced force, surface pressure ...
Mahbub Alam Md.
doaj   +1 more source

Noise Control by Regulation [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1973
An overview is presented of the current and anticipated future roles of the Environmental Protection Agency in what is hoped will become a cooperative, nationwide noise abatement program. As background, a brief review is given of (a) the estimated current extent and severity of the “noise problem” outside the work place (based on work performed as ...
openaire   +2 more sources

Estimation of travel time reduction for ice-breaking ships when considering ice information data

open access: yesAnnals of Glaciology
In light of the recent increase in polar shipping and potential future increase with continued climate change reliable routing in ice-covered waters becomes increasingly important for environmental, economic and safety concerns.
Bernhard Schmitz   +3 more
doaj   +1 more source

Axle Load Identification of Moving Vehicles Based on Influence Lines of Bridge Bending Moment

open access: yesNonlinear Engineering, 2014
This research aims at the identification of time varying axle load of moving vehicles though the determinations of influence lines of bridge bending moment.With the approach of this research, based on the theorem of modal superposition, the modal
Qian C.Z., Chen C.P, Hong L., Dai L. M.
doaj   +1 more source

Rapid Modeling Method for Road Traffic Noise Sources: A case study in Beijing

open access: yesNoise Mapping, 2015
Based on the local road traffic conditions in Beijing, China, this contribution proposes a rapid modeling method for road traffic noise sources. Since establishing the standardized experiment fields are expensive, real roads are used to determine the ...
Zhu L.   +6 more
doaj   +1 more source

On the existence of optimal controls for SPDEs with boundary-noise and boundary-control [PDF]

open access: yesSIAM J. Control Optim. 51, 2013, no. 3, 1909/1939, 2011
We consider a stochastic optimal control problem for an heat equation with boundary noise and boundary controls. Under suitable assumptions on the coefficients, we prove existence of optimal controls in strong sense by solving the stochastic hamiltonian system related.
arxiv  

Vibration, acoustic, temperature, and motor current dataset of rotating machine under varying operating conditions for fault diagnosis

open access: yesData in Brief, 2023
Rotating machines are often operated under various operating conditions. However, the characteristics of the data varies with their operating conditions.
Wonho Jung   +4 more
doaj  

The ozone radiative forcing of nitrogen oxide emissions from aviation can be estimated using a probabilistic approach

open access: yesCommunications Earth & Environment
Reliable prediction of aviation’s environmental impact, including the effect of nitrogen oxides on ozone, is vital for effective mitigation against its contribution to global warming.
Pratik Rao   +6 more
doaj   +1 more source

A noise-controlled dynamic bifurcation [PDF]

open access: yesarXiv, 1997
We consider a slow passage through a point of loss of stability. If the passage is sufficiently slow, the dynamics are controlled by additive random disturbances, even if they are extremely small. We derive expressions for the `exit value' distribution when the parameter is explicitly a function of time and the dynamics are controlled by additive ...
arxiv  

Home - About - Disclaimer - Privacy