Results 71 to 80 of about 1,830 (229)

Augmented Lagrangian approach for multi-objective topology optimization of energy storage flywheels with local stress constraints

open access: yes, 2023
Flywheel energy storage systems (FESS) used in short-duration grid energy storage applications can help improve power quality, grid reliability, and robustness. Flywheels are mechanical devices that can store energy as the inertia of a rotating disk. The
Aage, Niels   +2 more
core   +1 more source

Dimensioning Methodology of Energy Storage Systems for Power Smoothing in a Wave Energy Conversion Plant Considering Efficiency Maps and Filtering Control Techniques

open access: yesEnergies, 2020
This paper aims at presenting and describing a dimensioning methodology for energy storage systems (ESS), in particular for one based on flywheels, applied for the specific application of reducing power oscillation in a wave energy conversion (WEC) plant.
Jorge Torres   +5 more
doaj   +1 more source

Blood flow restriction exercise during microgravity exposure in parabolic flight

open access: yesExperimental Physiology, EarlyView.
Abstract This case report evaluates whether it is possible to perform blood flow restriction (BFR) exercise during exposure to microgravity. The objectives were three‐fold: (1) to determine if a personalised tourniquet system (PTS) hardware technology performs nominally and enables BFR exercise in microgravity; (2) to determine if BFR augments the ...
Yannick Laflamme   +2 more
wiley   +1 more source

Performance, cardioventilatory and perceptual responses to perceived opponent ability during head‐to‐head cycling competition

open access: yesExperimental Physiology, EarlyView.
Abstract We aimed to investigate whether cycling competition influences performance and pacing compared to an individual time trial. The second aim was to determine whether performance is further influenced by deceptive or accurate augmented feedback, delivered as an opponent riding at 2% higher power outputs than a previous competitive time trial ...
Guilherme Matta   +4 more
wiley   +1 more source

Specific Energy and Energy Density Analysis of Conventional and NonConventional Flywheels [PDF]

open access: yes, 2014
Flywheels are widely used as a means of energy storage throughout different applications such as hybrid electric vehicles, spacecraft, and electrical grids. The research presented here investigates various steel flywheel constructions.
Reyna, Ruben
core  

A Path to Better Science Through Co‐Creation and Open Infrastructure

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Proprietary development solutions are often perceived as being delivered more quickly and easily than open methods, fueling the misconception that they inherently produce better overall outcomes. However, we argue that open development practices can lead to both efficient and maximally impactful outcomes.
Tasha Snow   +18 more
wiley   +1 more source

High‐Energy‐Density Redox Flow Batteries: Mechanisms, Design Strategies, and Recent Progress

open access: yesChemistry – A European Journal, Volume 32, Issue 24, 23 June 2026.
ABSTRACT The inherent intermittency of energy sources such as solar and wind power hinders the transition to renewable energy, necessitating advanced energy storage solutions. Enhancing energy density is crucial for lowering system costs and enabling large‐scale deployment.
Xiaolian Zhao   +8 more
wiley   +1 more source

Dynamic Characteristics and Feedforward Control Methods of Magnetic Bearing Flywheels Under Moving Base Conditions

open access: yesApplied Sciences
Magnetic bearing flywheels, characterized by frictionless operation and long service life, are increasingly recognized as promising actuators for spacecraft attitude control.
Yuan Zeng, Peng Xiao, Jingbo Wei
doaj   +1 more source

Work Versus Force: Simultaneous Processes for Describing Interactions

open access: yesAdvanced Physics Research, Volume 5, Issue 6, June 2026.
ABSTRACT Achieving a unified description of interactions remains an open challenge in theoretical physics, which currently describes four fundamental forces. This situation may be viewed differently when interactions are formulated in terms of processes (work as actio) rather than forces (force as actio), not only at the macroscopic level but also at ...
Grit Kalies   +2 more
wiley   +1 more source

Flywheels Upgraded for Systems Research

open access: yes, 2003
With the advent of high-strength composite materials and microelectronics, flywheels are becoming attractive as a means of storing electrical energy.
Jansen, Ralph H.
core  

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