Results 21 to 30 of about 18,104 (246)

Research on Equalization Strategy Based on Credibility Factor Inference for Lithium-Ion Battery Packs

IEEE Access, 2022
In this paper, a two-stage equalization topology based on Zero-Voltage Switching Quasi-Resonant Converter (ZVS QRC) is proposed to solve the problems of long equalization time and low energy utilization of series lithium-ion battery packs.
Li Liao, Heng Chen, Shu Sun, Hongguang Li, Jiuchun Jiang, Tiezhou Wu   +5 more
doaj   +1 more source

Accelerating quasi-static time series simulations with foundation models

e+i Elektrotechnik und Informationstechnik
Quasi-static time series (QSTS) simulations have great potential for evaluating the grid's ability to accommodate the large-scale integration of distributed energy resources. However, as grids expand and operate closer to their limits, iterative power flow solvers, central to QSTS simulations, become computationally prohibitive and face increasing ...
Alban Puech, François Mirallès, Jonas Weiss, Vincent Mai, Alexandre Blondin Massé, Martin De Montigny, Thomas Brunschwiler, Hendrik F. Hamann   +7 more
openaire   +3 more sources

Thermal-hydraulic simulation and evaluation of a natural circulation thermosyphon loop for a reactor cavity cooling system of a high-temperature reactor

Nuclear Engineering and Technology, 2020
The investigation into a full-scale 27 m high, by 6 m wide, thermosyphon loop. The simulation model is based on a one-dimensional axially-symmetrical control volume approach, where the loop is divided into a series of discreet control volumes.
R. Swart, R.T. Dobson
doaj   +1 more source

Extreme Wave Loading on a Vertical Circular Cylinder

Applied Sciences, 2023
Extreme wave loading on a marine structure, consisting of a quasi-static and a dynamically slamming component, often drives the design of such a structure. Their accurate predictions remain challenging tasks. This paper examines the slamming contribution
Shi Liu, Xinran Guo, Yi Yang, Yatao Lu, Lifen Chen   +4 more
doaj   +1 more source

A new technique for observationally derived boundary conditions for space weather

Journal 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, Mackay Duncan Hendry, Yeates Anthony Robinson   +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

Energies, 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, Phillip Biddulph, Clifford A. Elwell   +2 more
doaj   +1 more source

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

2017 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, Jeremiah Deboever, Barry Mather   +2 more
openaire   +2 more sources

Compressive mechanical behavior and model of composite elastic-porous metal materials

Materials Research Express, 2021
This work presents the experimental characterization and theoretical modeling of composite elastic-porous metal materials (C-EPMM). C-EPMM is a novel porous metallic damping material made of wire mesh and wire helix.
Pei Yang, Tao Zhou, Di Jia, Zhiqiang Qin, Yiwan Wu, Hongbai Bai   +5 more
doaj   +1 more source

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

European 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

Journal 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