Results 51 to 60 of about 3,207 (147)

Reduced model for control in a hydroelectric unit at off-design operation [PDF]

, 2016
International audienceThis paper describes the development of a reduced-order linear mathematical model of a hydroelectric unit subject to pressure perturbations in the draft tube of the hydraulic turbine, as it is the case at off-design operation ...
Canudas de Wit, Carlos, Garin, Federica, Gerwig, Simon, Sari, Bilal   +3 more
core   +3 more sources

Mercury’s Low‐Latitude Boundary Layer: Identification of Distinct Proton Populations Using MESSENGER Spacecraft Data

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract We have performed a comprehensive analysis of Mercury’s Low‐Latitude Boundary Layer (LLBL) using data from the MErcury Surface, Space ENvironment, GEochemistry and Ranging (MESSENGER) spacecraft during its orbital phase. Using combined magnetic field and ion measurements, we identified 202 LLBL events and categorized them into three distinct ...
X. Wang, L. Z. Hadid, S. Aizawa, F. Sahraoui, J. M. Raines, B. Lavraud   +5 more
wiley   +1 more source

Solar Wind‐Magnetosphere‐Ionosphere Coupling During the October 2024 Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Two geomagnetic storms occurred in October 2024 (Oct 6‐9 and 10–12), driven by the impact of a series of interplanetary coronal mass ejections on the magnetosphere. The first was a moderate storm, with peak Sym‐H near −150 nT, whereas the second was intense, Sym‐H reaching −340 nT.
S. E. Milan, M. K. Mooney, G. E. Bower, R. M. Hodnett, U. V. Amerstorfer, C. Möstl, A. Samsonov, B. J. Anderson, J. Gjerloev, S. K. Vines   +9 more
wiley   +1 more source

Mitigation of Rotating Vortex Rope in a Hydro Turbine using a Guide Vane System

, 2023
Using renewable energy, such as water or wind, to produce electricity has been proven highly effective in Sweden. The ability of these renewable resources to make clean output energy counters the adversities caused by non-renewable resources. Amongst these, hydro turbines are one of the most preferred methods for generating electricity from water ...
openaire   +1 more source

Analysis of swirling flow in hydrocyclones operating under dense regime [PDF]

, 2012
There are many circumstances where hydrocyclone performance and dense flow are intertwined, such as for example when feed solids flow exceeds hydrocyclone capacity during continuous operations. The work reported here, which is part of an ongoing research
Bourgeois, Florent, Climent, Éric, Davailles, Aurélien, Majumder, Arun Kumar   +3 more
core   +3 more sources

Multi‐Omics and Machine Learning‐Uncovered FLT1‐Mediated Epithelial‐Endothelial Crosstalk in Cellular Senescence Driving Clear Cell Renal Cell Carcinoma Malignancy

The FASEB Journal, Volume 40, Issue 8, 30 April 2026.
This study integrates multi‐omics data and machine learning to reveal FLT1 as a central mediator of epithelial‐endothelial crosstalk in clear cell renal cell carcinoma (ccRCC). We demonstrate that FLT1‐associated signaling promotes a senescence‐enriched tumor microenvironment, driving malignant progression. Spatial and single‐cell analyses confirm FLT1
Mouyuan Sun, Huchao Mao, Yaxian Luo, Mei Yang, Zhixu He, Shuangyang Li, Zhichao Liu, Lianjie Peng, Quanjie Zhang, Jingyu Zhang, Yan Zhang   +10 more
wiley   +1 more source

Methodology for Risk Assessment of Part Load Resonance in Francis Turbine Power Plant [PDF]

, 2007
At low flow rate operation, Francis turbines feature a cavitating vortex rope in the draft tube resulting from the swirling flow of the runner outlet. The unsteady pressure field related to the precession of the vortex rope induces plane wave propagating
Allenbach, Philippe, Avellan, François, Greiveldinger, Bob, Herou, Jean-Jacques, Nicolet, Christophe, Simond, Jean-Jacques   +5 more
core  

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Jump Rope Vortex in Liquid Metal Convection

, 2018
Understanding large scale circulations (LSCs) in turbulent convective systems is important for the study of stars, planets and in many industrial applications.
Aurnou, Jonathan M., Grannan, Alexander M., Horn, Susanne, Vogt, Tobias   +3 more
core  

Fatigue crack propagation in microcapsule toughened epoxy [PDF]

, 2004
The addition of liquid-filled urea-formaldehyde (UF) microcapsules to an epoxy matrix leads to significant reduction in fatigue crack growth rate and corresponding increase in fatigue life.
Brown, Eric N., Sottos, Nancy R., White, Scott R.   +2 more
core   +1 more source