Results 101 to 110 of about 184,150 (234)

Computational Fluid Dynamics Analysis of Draft Tube Flow Characteristics in a Kaplan Turbine

Actuators
This study presents a numerical investigation of the internal flow characteristics within the draft tube of a Kaplan turbine using computational fluid dynamics (CFD).
Qinwen Yan, Zhiqiang Xiong, Yuan Zheng, Chen Feng, Zhen Li, Lin Hu, Lianchen Xu   +6 more
doaj   +1 more source

Flow Field Analysis of Francis Turbine Draft Tube using POD at Design and Part Load Operating Conditions [PDF]

Journal of Applied Fluid Mechanics
The hydraulic turbines, especially Francis turbines, frequently run at part load (PL) conditions to meet the dynamic energy needs. The flow field at the runner exit changes significantly with a change in the operating point.
S. Kumar, M. J. Cervantes, B. K. Gandhi
doaj   +1 more source

Cortisol concentrations in hair are biomarkers of health status and seasonal change, but not urbanisation, in wolves

Wildlife Biology, EarlyView.
Wolves have reclaimed much of their former range in Europe, including areas with a high human footprint, yet the physiological impacts of human‐associated stressors remain poorly understood. We first examined methodological factors affecting hair cortisol concentrations (HCC) in wolves by using a ‘shave/re‐shave' design to assess hair growth rate and ...
Gwendolyn Wirobski, Carmela Musto, Rudy Brogi, Martina Lazzaroni, Rupert Palme, Yasmina Wukovich, Fanni Kertész, Ágnes Szabó, Chiara Garbarino, Marco Gobbi, Lorella Barca, Mauro Delogu, The Wolf Network, Friederike Range, Marco Apollonio, Sarah Marshall‐Pescini   +15 more
wiley   +1 more source

Development of a Multi-Criteria Numerical Model for the Evaluation of Rope Rescue Methods: A Pilot Methodological Case Study

Applied Sciences
Rescue operations in abandoned and structurally compromised buildings represent a specific type of technical intervention in which the rapid evacuation of injured persons must be ensured while maintaining a high level of rescuer safety.
Daniela Marasová, Daniela Marasová, Ivanna Betušová, Miroslav Betuš   +3 more
doaj   +1 more source

Machine Learning‐Assisted Development in Insulating Materials for High Voltage Applications

High Voltage, EarlyView.
ABSTRACT The advancement of power systems imposes increasingly stringent performance requirements on insulating materials, making the development of high‐performance insulating materials a critical challenge in the field of electrical engineering. Traditional material development relies heavily on empirical trial‐and‐error approaches, which are time ...
Yichen Ran, Yi Wang, Changheng Li, Jingyu Deng, Jian Wang, Haochen Zuo, Chen Zhao, Qian Wang, Yi Li, Song Xiao, Zhengyong Huang, Chao Wu, Zhonghui Shen, Kunming Shi, Fei Liu, Jie Chen, Jian Li, Xingyi Huang   +17 more
wiley   +1 more source

Experimental Investigation on the Characteristics of Hydrodynamic Stabilities in Francis Hydroturbine Models

Advances in Mechanical Engineering, 2014
This paper presents an experimental investigation of flow phenomena related to the characteristic frequencies of pressure fluctuation in Francis hydroturbine models.
Wen-Tao Su, Xiao-Bin Li, Feng-Chen Li, Xian-Zhu Wei, Wen-Fu Han, Shu-Hong Liu   +5 more
doaj   +1 more source

Pressure Fluctuations in the S-Shaped Region of a Reversible Pump-Turbine

Energies, 2017
Numerical simulations were performed to investigate pressure fluctuations in the S-shaped region of a pump-turbine model. Analyses focused on pressure fluctuations in the draft tube and in the gap between the guide vanes and runner.
Zijie Wang, Baoshan Zhu, Xuhe Wang, Daqing Qin   +3 more
doaj   +1 more source

125 years of exploration and research at Gough's Cave (Somerset, UK) 125 ans d'exploration et de recherches à Gough's Cave (Somerset, Royaume‐Uni)

Journal of the Royal Anthropological Institute, EarlyView.
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello, Mark D. Lewis, Simon A. Parfitt   +2 more
wiley   +1 more source

Optical skipping rope induced transverse OAM for particle orbital motion parallel to the optical axis. [PDF]

Nanophotonics, 2023
Zhu L, Zhang X, Rui G, He J, Gu B, Zhan Q.   +5 more
europepmc   +1 more source

From Nouns and Adjectives to Verbs: Base Effects on the Grammatical Behaviour of Denominal Verbs in Ancient Greek1

Transactions of the Philological Society, EarlyView.
Abstract This paper investigates the role of semantic features of noun and adjective bases in determining the grammatical behaviour of Ancient Greek denominal and deadjectival verbs in *‐ye/o‐. The paper adopts a lexicalist framework (Rappaport Hovav & Levin 1998) and examines how the event schema, actionality, telicity and voice of derived verbs are ...
Carolina Marescotti
wiley   +1 more source