Results 101 to 110 of about 749,250 (317)

Advances in research on impulse hydro‐turbine technology

River, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li, Ye Zhou, Hao Zhang, Guanglei Xiao, Yanwei Li, Zhongxin Gao, Zhiyang Lu, Shangqi Li   +7 more
wiley   +1 more source

Lightning observations from the Space Shuttle [PDF]

Motion pictures were taken at night from the space shuttle that show lightning discharges spreading horizontally at speeds of .00001 m/sec for distances over 60 km.
Brook, M., Vaughan, O. H., Jr., Vonnegut, B.   +2 more
core   +1 more source

Correlative Chemical Imaging to Reveal the Nature of Different Commercial Graphene Materials

Small Methods, EarlyView.
Commercial graphene‐based materials from different sources and of varying complexities were investigated correlatively using commonly employed imaging techniques, including SEM, AFM, ToF‐SIMS, AES, and EDS. ToF‐SIMS combined with SEM was identified as the most effective combination for simultaneously resolving the complex morphology and chemical ...
Robert Schusterbauer, Paul Mrkwitschka, Mario Sahre, Elena Corrao, Amaia Zurutuza, Alexander Doolin, Francesco Pellegrino, Jörg Radnik, Ievgen S. Donskyi, Vasile‐Dan Hodoroaba   +9 more
wiley   +1 more source

Lightning observations from space shuttle [PDF]

The experimental program of the Earth Sciences and Applications Division at NASA/MSFC includes development of the Lightning Imaging Sensor (LIS) for the NOAA Earth Observing System (EOS) Polar Platform.
Boeck, William L.
core   +1 more source

Organic Representation as a Critical Media Approach to Leadership Studies in Popular Culture

New Directions for Student Leadership, Volume 2025, Issue 185, Page 75-80, Spring 2025.
ABSTRACT This article applies the critical media concept of organic representation to leadership studies as an analytic of how various creators in popular culture today are not just writing inclusive storytelling but, more notably, modeling new modes of production and self‐presentation that are actively challenging hegemonic industry practices and ...
Raffi Sarkissian
wiley   +1 more source

Thunderstorm total lightning activity behavior associated with transmission line trip events of power system

npj Climate and Atmospheric Science
High-voltage transmission lines are susceptible targets for lightning strikes. It is an interesting topic how the trip event of transmission line is related to the area, location, and intensity of thunderstorms occurring at that time and that place ...
Muzi Li, Si Cheng, Jianguo Wang, Li Cai, Yadong Fan, Jinxin Cao, Mi Zhou   +6 more
doaj   +1 more source

Lightning Current Distribution of the First and Subsequent Strokes Based on the Lightning Location System: Survey in Yunnan Power Grid

Atmosphere
Lightning is an electrical discharge phenomenon in the atmosphere caused by charge separation in clouds, which is divided into cloud-to-ground (CG) and cloud-to-cloud (CC) lightning.
Yutang Ma, Hongchun Shu, Changxin Xiao, Gaohui Yang, Chengwei Xie, Mengmeng Zhu, Pulin Cao   +6 more
doaj   +1 more source

The source of Saturn electrostatic discharges: Atmospheric storms [PDF]

Important properties of the recently discovered Saturn electrostatic discharges are entirely consistent with an extended lightning storm system in Saturn's atmosphere.
Connerney, J. E. P., Desch, M. D., Kaiser, M. L.   +2 more
core   +1 more source

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

High Voltage, EarlyView.
ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He, Yubin Huang, Wanxia Zhang, Chang Liu, Xiuyuan Yao, Yu Ying, Weijiang Chen   +6 more
wiley   +1 more source

Comparison of lightning location data and polarisation radar observations of clouds [PDF]

Simultaneous observations of both the precipitation and the lightning associated with thunderstorms show that the lightning is within 3 km of the maximum precipitation echo.
Illingworth, A. J., Lees, M. I.
core   +1 more source