Results 51 to 60 of about 6,461,686 (138)

Fall Convocation Saint Francis Xavier University November 16, 1975 [PDF]

open access: yes, 1975
Convocation pamphlet published by St.

core  

Adaptive Turbine Replacement Improves Hydropower Flexibility in a Changing Climate

open access: yesWater Resources Research, Volume 62, Issue 8, August 2026.
Abstract Hydropower plants will operate under new conditions as water regimes shift, reservoir operating rules evolve, and the grid requires flexible balancing of wind and solar. Hydropower plant turbine systems are traditionally designed to operate at the highest efficiency within narrow ranges of flow and reservoir levels while deviations from design
Veysel Yildiz   +2 more
wiley   +1 more source

Limitations and alternatives to the salmonid mortality formulae for Francis turbines proposed by Tomanova et al. (2023)

open access: yesKnowledge and Management of Aquatic Ecosystems
Based on data from 73 in situ mortality tests available in both peer-reviewed and grey literature, we developed in 2023 two new formulae for estimating salmonid mortality rates in Francis turbines.
Tomanova Sylvie   +3 more
doaj   +1 more source

Microstructure Engineering Toward High Cost‐Effective Nd–Fe–B Sintered Magnets: A Review

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Nd–Fe–B sintered magnets, critical for enhancing electromechanical conversion efficiency and operational stability in wind turbines and electric vehicle drives, are prized for their outstanding coercivity, high remanence, and superior maximum energy product.
Dongmin Zhang   +5 more
wiley   +1 more source

Extending the operational range of Francis turbines: A case study of a 200 MW prototype

open access: yesEnergy Conversion and Management: X
Francis turbines are now widely used to support the integration of renewable and intermittent energy sources such as solar and wind power. Consequently, these turbines often operate away from their best efficiency point (BEP).
Michel J. Cervantes   +4 more
doaj   +1 more source

Numerical study on unidirectional fluid–solid coupling of Francis turbine runner

open access: yesAdvances in Mechanical Engineering, 2015
To analyze the fluid–solid coupling stress characteristics of the Francis turbine runner comprehensively, based on the Reynolds-averaged Navier–Stokes equations and shear stress transport k-ω turbulence model, this article performs numerical simulation ...
Kan Kan   +4 more
doaj   +1 more source

Cerebral oxygenation and skeletal muscle responses to time trial, maximal oxygen uptake and time to exhaustion exercise

open access: yesExperimental Physiology, Volume 111, Issue 7, Page 3267-3279, 1 July 2026.
Abstract This study investigated cerebral and neuromuscular responses to three exercise models: time trial (TT), maximal oxygen uptake (V̇O2max${{\dot{V}}_{{{{\mathrm{O}}}_2}{\mathrm{max}}}}$) and time to exhaustion (TTE). Fourteen participants completed the tests in the following order: V̇O2max${{\dot{V}}_{{{{\mathrm{O}}}_2}{\mathrm{max}}}}$, TT and ...
Caroline V. Robertson   +3 more
wiley   +1 more source

Vulnerability of Bats in Australia to Wind Turbine Mortality: A Trait‐Based Assessment

open access: yesAustral Ecology, Volume 51, Issue 6, June 2026.
ABSTRACT Wind turbine collisions are a leading cause of bat mortality globally, yet the vulnerability of Australian bat taxa remains poorly understood. Trait‐based assessments offer a valuable method for evaluating mortality risk in the absence of data on species‐ and region‐specific turbine interactions.
Carissa V. Harris, Christopher Turbill
wiley   +1 more source

Fall Convocation Saint Francis Xavier University November 12, 1978 [PDF]

open access: yes, 1978
Convocation pamphlet published by St.

core  

Solid–Liquid Flow Analysis of Francis‐99 Turbine Runner: Effects of Sediment Concentration

open access: yesEnergy Science & Engineering
This study examines the behavior of solid–liquid two‐phase flow within the runner of the Francis‐99 turbine. Numerical simulations were carried out by Ansys Fluent software using the Mixture multiphase flow model along with the Realizable k‐ε turbulence ...
Kang Xu   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy