Results 31 to 40 of about 18,596,180 (276)

A new technique for observationally derived boundary conditions for space weather

open access: yesJournal of Space Weather and Space Climate, 2018
Context. In recent years, space weather research has focused on developing modelling techniques to predict the arrival time and properties of coronal mass ejections (CMEs) at the Earth.
Pagano Paolo   +2 more
doaj   +1 more source

A Bayesian Dynamic Method to Estimate the Thermophysical Properties of Building Elements in All Seasons, Orientations and with Reduced Error

open access: yesEnergies, 2018
The performance gap between the expected and actual energy performance of buildings and elements has stimulated interest in in-situ measurements. Most research has employed quasi-static analysis methods that estimate heat loss metrics such as U-values ...
Virginia Gori   +2 more
doaj   +1 more source

Motivation and requirements for quasi-static time series (QSTS) for distribution system analysis

open access: yes2017 IEEE Power & Energy Society General Meeting, 2017
Distribution system analysis with ever increasing numbers of distributed energy resources (DER) requires quasistatic time-series (QSTS) analysis to capture the time-varying and time-dependent aspects of the system. Previous literature has demonstrated the benefits of QSTS, but there is limited information available for the requirements and standards ...
Matthew J. Reno   +2 more
openaire   +2 more sources

Time delay in the strong field limit for null and timelike signals and its simple interpretation

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Gravitational lensing can happen not only for null signals but also timelike signals such as neutrinos and massive gravitational waves in some theories beyond GR.
Haotian Liu, Junji Jia
doaj   +1 more source

Performance of GPS sidereal filters during a satellite outage

open access: yesJournal of Geodetic Science, 2017
Sidereal filtering is the name of a technique used to reduce the effect of multipath interference on a GPS position time series associated with a static or quasi-static antenna.
Atkins C., Ziebart M. K.
doaj   +1 more source

Simplified A-Diakoptics for Accelerating QSTS Simulations

open access: yesEnergies, 2022
The spread of distributed energy resources (DERs) across the distribution power system demands complex planning studies based on quasi-static-time-series (QSTS) simulations, requiring a significant amount of computing time to complete, leading planners ...
Davis Montenegro, Roger Dugan
doaj   +1 more source

Time-series clustering via quasi U-statistics

open access: yes, 2015
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)The problem of time-series discrimination and classification is discussed. We propose a novel clustering algorithm based on a
Pinheiro, A, Valk, M
core   +1 more source

Electric Vehicles Charging Management for Real-Time Pricing Considering the Preferences of Individual Vehicles

open access: yesApplied Sciences, 2021
The paper proposes a real-time model for electric vehicles (EVs) controlled load charging. The proposed demand-side management (DSM) of EVs is implemented based on queuing analysis with a nonhomogeneous arrival rate and charging service periods dataset ...
Ali Selim   +4 more
doaj   +1 more source

Estimation of missing data in a geophysical series of precipitation

open access: yes, 2021
The analysis of dynamic systems is a topic of great interest in the basic sciences since it allows direct inference of the behavior of different systems. The study of physical phenomena provides large databases that, if recorded at regular time intervals,
GALLARDO PÉREZ, HENRY DE JESÚS   +2 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

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