Results 101 to 110 of about 1,226,273 (354)

Conjugate Ionospheric Perturbation During the 2017 Solar Eclipse

Journal of Geophysical Research: Space Physics, 2020
We report new findings of total electron content (TEC) perturbations in the southern hemisphere at conjugate locations to the northern eclipse on August 21, 2017.
Shunrong Zhang, P. Erickson, J. Vierinen, Ercha Aa, W. Rideout, A. Coster, L. Goncharenko   +6 more
semanticscholar   +1 more source

Arrhenius Activation Energy on Viscous and Radiative Heating of Hybridized Chemical Reactive Magnetized‐Casson Nanofluid Flow in Saturated Porous Media With Varied Heat Source/Sink

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study analyzes the influence of Arrhenius activation energy on the chemically reactive, magnetohydrodynamic Casson hybrid nanofluid flow past an exponentially stretching surface embedded in a Darcy–Forchheimer porous medium with a non‐uniform heat source/sink.
Md. Sailanebaba, MD. Shamshuddin, S. O. Salawu   +2 more
wiley   +1 more source

Bioconvection Darcy–Forchheimer Flow of Ree‐Eyring Nanofluid Over a Riga Plate With Arrhenius Activation Energy and Viscous Dissipation

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This work examines the intricate interactions of heat radiation, viscous dissipation, the Cattaneo–Christov thermal model, gyrotactic microorganisms, Arrhenius activation energy, and Darcy–Forchheimer flow affecting Ree‐Eyring nanofluid behavior across a Riga plate.
M. Vinodkumar Reddy, V. Sivaramakrishna, Jintu Mani Nath, V. V. L. Deepthi, Bamdeb Dey   +4 more
wiley   +1 more source

Commissioning an Inexpensive Off‐The‐Shelf Spectrograph for Radial‐Velocity Studies

Astronomische Nachrichten, EarlyView.
ABSTRACT We present a way to set up an inexpensive out of the shelf spectrograph at a local observatory. Stability and resolution of the spectrograph are high enough for radial velocity determination of binary stars or determination of stellar characteristics. Even some exoplanets might be detectable via the radial velocity method.
Lukas Stock, Andreas Schrimpf
wiley   +1 more source

Enhanced Photocatalytic Reduction of CO2 to Complete CO Mediated by Donor–Acceptor Covalent Organic Frameworks

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A donor–acceptor (D–A) engineering strategy is applied to construct β‐ketoenamine‐linked COFs for CO2 photoreduction in pure water without sacrificial agents or photosensitizers. The designed TP‐TAPB COF, featuring the strongest D–A interaction, achieves a complete CO production rate of 464.6 μmol g−1. Strengthened intramolecular D–A interactions favor
Yi Li, Longyan Wang, Deqi Fan, Zhaolin Li, Chengxiao Zhao, Xiaofei Yang   +5 more
wiley   +1 more source

Structure in the Disk of epsilon Aurigae: Analysis of the ARCES and TripleSpec data obtained during the 2010 eclipse

, 2018
Context: Worldwide interest in the recent eclipse of epsilon Aurigae resulted in the generation of several extensive data sets, including those related to high resolution spectroscopic monitoring.
Barentine, John, Coughlin, Jeffrey, Gibson, Justus L., Ketzeback, William, Leadbeater, Robin, Saurage, Gabrelle, Stencel, Robert E.   +6 more
core   +1 more source

The Response of the Ionosphere‐Thermosphere System to the 21 August 2017 Solar Eclipse

Journal of Geophysical Research: Space Physics, 2019
We simulated the effects of the 21 August 2017 total solar eclipse on the ionosphere‐thermosphere system with the Global Ionosphere Thermosphere Model (GITM).
I. Cnossen, A. Ridley, L. Goncharenko, B. Harding   +3 more
semanticscholar   +1 more source

Decentralized Wind Energy Systems as Catalysts for Urban Resilience: A Design Framework

Energy Science &Engineering, EarlyView.
ABSTRACT Confronting the escalating extreme weather events (EWEs) and intensifying winds, this study proposes an active response to these issues by exploring decentralized wind energy production for Peng Chau Island, Hong Kong. It integrates theoretical perspectives on energy democracy—empowering local communities through energy autonomy—and urban ...
Tian Cheng
wiley   +1 more source

Prediction of the coronal structure for the solar eclipse of September 22, 1968 [PDF]

Coronal structure for solar eclipse of September 22 ...
Schatten, K. H.
core   +1 more source

Hydropower resettlement reshapes human–nature relationships: Insights from Southwestern China

People and Nature, EarlyView.
Abstract Understanding how hydropower migrants perceive nature's contributions to people (NCP) and how these perceptions relate to their subjective well‐being (SWB) is essential for informing resettlement policies that promote a good quality of life. How hydropower migrants' perceived NCP affects SWB remains poorly understood.
Xiaoyin He, Wenjuan Zhao, Ronghua Zhong, Ranhao Sun   +3 more
wiley   +1 more source