Results 41 to 50 of about 829 (220)

Van Allen Probes Observations of Chorus Wave Vector Orientations: Implications for the Chorus‐to‐Hiss Mechanism [PDF]

Geophysical Research Letters, 2019
AbstractUsing observations from the Van Allen Probes EMFISIS instrument, coupled with ray tracing simulations, we determine the fraction of chorus wave power with the conditions required to access the plasmasphere and evolve into plasmaspheric hiss.
D. P. Hartley, C. A. Kletzing, L. Chen, R. B. Horne, O. Santolík   +4 more
openaire   +3 more sources

Combined Effects of Equatorial Chorus Waves and High‐Latitude Z‐Mode Waves on Saturn's Radiation Belt Electrons

Geophysical Research Letters, 2019
In this paper, we examined the combined effects of equatorial chorus waves and high‐latitude Z‐mode waves on the energy and pitch angle distribution of Saturn's radiation belt electrons.
J. Yu, L.Y. Li, J. Cui, J.B. Cao, J. Wang   +4 more
doaj   +1 more source

Survey of ELF-VLF plasma waves in outer radiation belt observed by Cluster STAFF-SA experiment [PDF]

Annales Geophysicae, 2008
Various types of plasma waves have profound effects on acceleration and scattering of radiation belt particles. For the purposes of radiation belt modeling it is necessary to know statistical distributions of plasma wave parameters.
D. Pokhotelov, F. Lefeuvre, R. B. Horne, N. Cornilleau-Wehrlin, N. Cornilleau-Wehrlin   +4 more
doaj   +1 more source

Analytical Chorus Wave Model Derived from Van Allen Probe Observations [PDF]

Journal of Geophysical Research: Space Physics, 2019
AbstractChorus waves play an important role in the dynamic evolution of energetic electrons in the Earth's radiation belts and ring current. Using more than 5 years of Van Allen Probe data, we developed a new analytical model for upper‐band chorus (UBC; 0.5fce < f < fce) and lower‐band chorus (LBC; 0.05fce < f < 0.5fce) waves, where fce is ...
Dedong Wang, Yuri Y. Shprits, Irina S. Zhelavskaya, Oleksiy V. Agapitov, Alexander Y. Drozdov, Nikita A. Aseev   +5 more
openaire   +4 more sources

On–Off Switchable Micromotors for Use in Steerable Microvehicles

Advanced Robotics Research, EarlyView.
Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson, Eswaran Murugasen, Jose G. Martinez, Edwin W. H. Jager   +3 more
wiley   +1 more source

Butterfly Distributions of Energetic Electrons Driven by Ducted and Nonducted Chorus Waves

Geophysical Research Letters
Bursts of electron butterfly distributions at 10s keV correlated with chorus waves are frequently observed in the Earth's magnetosphere. Strictly ducted (parallel) upper‐band chorus waves are proposed to cause them by nonlinear cyclotron trapping ...
Yangguang Ke, Xinliang Gao, Quanming Lu, Xueyi Wang, Rui Chen   +4 more
doaj   +1 more source

Chorus waves and spacecraft potential fluctuations: Evidence for wave‐enhanced photoelectron escape [PDF]

Geophysical Research Letters, 2014
Chorus waves are important for electron energization and loss in Earth's radiation belts and inner magnetosphere. Because the amplitude and spatial distribution of chorus waves can be strongly influenced by plasma density fluctuations and spacecraft floating potential can be a diagnostic of plasma density, the relationship between measured potential ...
D. M. Malaspina, R. E. Ergun, A. Sturner, J. R. Wygant, J. W. Bonnell, A. Breneman, K. Kersten   +6 more
openaire   +1 more source

Thermoelectric Performance and Morphological Stability of Thin Titania: Carbon Black Hybrid Films Against Humidity and Light Irradiation

Advanced Energy and Sustainability Research, EarlyView.
Nanostructured titania:carbon black hybrid films, fabricated via water‐based slot‐die coating, show stable thermoelectric performance under light irradiation but degrade under high humidity. Operando grazing incidence small‐angle X‐ray scattering reveals humidity‐induced morphological changes correlating with reduced Seebeck coefficients.
Linus F. Huber, Apostolos Vagias, Suo Tu, Ting Tian, Lukas V. Spanier, Zhaonan Jin, Morgan P. Le Dû, Lixing Li, Sigrid Bernstorff, Peter Müller‐Buschbaum   +9 more
wiley   +1 more source

Rapid Frequency Variations Within Intense Chorus Wave Packets

Geophysical Research Letters, 2020
AbstractWhistler mode chorus waves are responsible for electron acceleration in Earth's radiation belts. It is unclear, however, whether the observed acceleration is still well described by quasi‐linear theory, or if this acceleration is due to intense waves that require nonlinear treatment.
X.‐J. Zhang, D. Mourenas, A. V. Artemyev, V. Angelopoulos, W. S. Kurth, C. A. Kletzing, G. B. Hospodarsky   +6 more
openaire   +2 more sources

Examining pathways by which socioeconomic instability in adolescence influence sexual health during emerging adulthood in an agricultural setting in California

American Journal of Community Psychology, EarlyView.
Abstract This study investigates the longitudinal impact of socioeconomic instability on teen pregnancy and sexually transmitted infection (STI) diagnosis among adolescents and young adults (AYA) living in an agricultural region and examines pathways including supportive family and social structures, decision making autonomy in romantic relationships ...
Marie C. D. Stoner, Erica N. Browne, Marissa Raymond‐Flesch, Mary Kate Shapley‐ Quinn, Nivedita L. Bhushan, Alondra Jaime‐Aguilar, Carmen Ramirez, Jessica Huante, Daisy Gallardo, Sue Napierala, Megan Comfort, Alexandra M. Minnis   +11 more
wiley   +1 more source