Results 91 to 100 of about 21,504 (309)

Perturbazioni geomagnetiche, aurorali, ionosferiche e dei raggi cosmici : interdipendenze e relazioni con l'attività solare

Annals of Geophysics, 1966
Existence of interplanetary magnetic fields other than<br />the geomagnetic field is now well established. They travel as frozen-in<br />fields inside the solar plasma clouds: magnetic fields on the Sun are then<br />discussed ...
F. Molina, F. Mariani
doaj   +1 more source

Facet‐Specific PbS Quantum Dot Passivation Using Halide Perovskites for SWIR Photodetectors

Advanced Materials Interfaces, EarlyView.
PbS quantum dots (QDs) are emerging as powerful short‐wave infrared photodetectors, yet the passivation mechanism of large QDs by perovskites ‐ critical for their stability ‐ remains unexplained. Here, we unveil the ligand structure of CH3NH3PbI3 (MAPI)‐passivated 4‐nm PbS QDs using FTIR, XPS, SEM, NMR, and DFT.
L. Paillardet, M. Gromova, D. Liu, A. S. Vasenko, O. V. Prezhdo, S. Alarab, G. De Paëpe, G. Lefevre, S. Charlot, O. Gourhant, B. Mortini, P. Reiss, J.‐M. Verilhac, D. Aldakov   +13 more
wiley   +1 more source

Solar magnetic field reversal as seen at Ulysses

, 2003
The rapid motion of the Ulysses spacecraft from high southern to high northern latitudes in 2000–2001 provided an excellent opportunity to make inferences regarding the solar magnetic dipole's behaviour around solar maximum.
Smith, E.J., Balogh, A., Jones, G.H.
core  

Comparison of the On-disk Apparent Current Sheets with the Limb Ones

The Astrophysical Journal
Based on observations from the Solar Dynamics Observatory (SDO) and the Solar and Heliospheric Observatory (SOHO), we investigate 30 apparent current sheets during 1999–2021, including 10 on-disk and 8 limb ones from the SDO, as well as 12 limb ones from
Tao Ding, Jun Zhang
doaj   +1 more source

Mapping solar magnetic fields from the photosphere to the base of the corona. [PDF]

Sci Adv, 2021
Ishikawa R, Bueno JT, Del Pino Alemán T, Okamoto TJ, McKenzie DE, Auchère F, Kano R, Song D, Yoshida M, Rachmeler LA, Kobayashi K, Hara H, Kubo M, Narukage N, Sakao T, Shimizu T, Suematsu Y, Bethge C, De Pontieu B, Dalda AS, Vigil GD, Winebarger A, Ballester EA, Belluzzi L, Štěpán J, Ramos AA, Carlsson M, Leenaarts J.   +27 more
europepmc   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Current sheets in the solar corona : formation, fragmentation and heating

, 2011
In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity.
Bowness, Ruth
core  

The appearance, motion, and disappearance of three-dimensional magnetic null points

, 2015
N.A.M. acknowledges support from NASA grants NNX11AB61G, NNX12AB25G, and NNX15AF43G; NASA contract NNM07AB07C; and NSF SHINE grants AGS-1156076 and AGS-1358342 to SAO. C.E.P.
Parnell, Clare Elizabeth, Haynes, Andrew Lewis, A. Murphy, Nicholas, Nicholas A. Murphy, Clare E. Parnell, Andrew L. Haynes   +5 more
core   +1 more source

A solar storm observed from the Sun to Venus using the STEREO, Venus Express, and MESSENGER spacecraft [PDF]

, 2009
The suite of SECCHI optical imaging instruments on the STEREO-A spacecraft is used to track a solar storm, consisting of several coronal mass ejections (CMEs) and other coronal loops, as it propagates from the Sun into the heliosphere during May 2007 ...
Forsyth, R., Coates AJ, Davies, JA, Thernisien, A, Brown, D., Harrison, R. A., R. J. Forsyth, Lockwood, M., C. J. Davis, Crothers, S., Frahm, R. A., Carr, CM, M. Grande, Bewsher, D, Winningham JD, Savani, NP, Howard, RA, Eyles, C.J., Tsang S, Davis CJ, M. Fränz, N. P. Savani, Howard, R. A., Grande, M, Hapgood, M., Savani NP, Winningham, JD, Crothers SR, Grande, M., Savani, N.P., Harrison RA, Davies, J. A., Bewsher, D., Forsyth, RJ, Davies, J., M. Hapgood, Anderson, B., Sheeley, N.R., Winningham, J., Eyles, C., Tsang, S., Hapgood, M, Fränz M, Whittaker I, C. J. Eyles, G. H. Jones, Davies JA, Grande M, Harrison, R.A., R. A. Frahm, J. D. Winningham, Forsyth, R.J., Whittaker, I., Brown DS, Anderson, B, Zhang, T.-L., S. Tsang, Howard, R., R. A. Howard, Forsyth RJ, M. Lockwood, Sheeley, N. R., Brown, Daniel Stephen, Winningham, J. D., Frahm, R.A., Bewsher D, Savani, N., Rouillard AP, Sheeley NR, Zhang, TL, Coates, AJ, Davis, CJ, Lockwood M, Whittaker, I, Savani, N. P., Frahm, R., I. Whittaker, Eyles, C. J., Jones, G. H., Harrison, R., A. Thernisien, Eyles CJ, Thernisien A, Davis, C., Forsyth, R. J., Frahm, RA, Davis, C.J., Eyles, Christopher, Thernisien, A., T.-L. Zhang, Rouillard, A., Zhang, T., Rouillard, A.P., Bewsher, Danielle, Rouillard, A. P., Zhang, T. -L., Howard RA, Crothers, S.R., Jones, G.H., Fränz, M., Sheeley, N., D. S. Brown, Tsang, S, Rouillard, AP, Davis, C. J., Hapgood M, Brown, D.S., Jones, G., S. R. Crothers, Carr CM, A. J. Coates, Carr, C.M., B. Anderson, Winningham, J.D., Frahm RA, A. P. Rouillard, J. A. Davies, Scott, Chris J., Davies, J.A., Coates, A., C. M. Carr, Carr, C. M., Howard, R.A., Coates, A.J., Harrison, RA, N. R. Sheeley, Fraenz, M., Brown, DS, Brown, D. S., Jones GH, Sheeley, NR, Lockwood, M, Coates, A. J., D. Bewsher, Crothers, S. R., Zhang T, Carr, C., Crothers, SR, Jones, GH, Anderson B, Fränz, M, R. A. Harrison   +141 more
core   +1 more source

On a limitation of Zeeman polarimetry and imperfect instrumentation in representing solar magnetic fields with weaker polarization signal. [PDF]

J Space Weather Space Clim, 2021
Pevtsov AA, Liu Y, Virtanen I, Bertello L, Mursula K, Leka KD, Hughes ALH.   +6 more
europepmc   +1 more source