Results 121 to 130 of about 86,915 (297)

New dwarf galaxy candidates in the Centaurus group

, 2015
Recent studies of the distribution and kinematics of the Milky Way and Andromeda satellite galaxy systems have confirmed the existence of coplanar, corotating structures of galaxies. In addition to the 'missing satellite problem', these structures pose a
Binggeli, Bruno, Jerjen, Helmut, Müller, Oliver   +2 more
core   +1 more source

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong, Juan Anthony Prayogo, Soobin Heo, Jae Sung Yun, Dong Ryeol Whang, Dong Wook Chang, Hui Joon Park   +6 more
wiley   +1 more source

Giant Intrinsic Chirality Amplification of Aqueous Lead Halide Perovskite Nanocrystals via H‐Bond Driven Self‐Assembly Superstructures

Advanced Functional Materials, EarlyView.
Water‐assisted monoclinic CsPbBr3 transformation strategy is applied for synthesizing aqueous CsPbBr3/CsPb2Br5 nanocrystals with superior water‐repellent and excellent optical property. Low temperature enhanced hydrogen bonding network self‐assembled CsPbBr3/CsPb2Br5 nanocrystals into asymmetric superstructures, which exhibit notable circularly ...
Mei Huang, Pengfei Liu, Zhihong Zhang, Ruijing Fu, Kar Wei Ng, Qingguang Zeng, Bo Wang, Shuangpeng Wang   +7 more
wiley   +1 more source

Monitoring Soil Moisture Drought over Northern High Latitudes from Space

Remote Sensing, 2019
Mapping drought from space using, e.g., surface soil moisture (SSM), has become viable in the last decade. However, state of the art SSM retrieval products suffer from very poor coverage over northern latitudes.
Jostein Blyverket, Paul D. Hamer, Philipp Schneider, Clément Albergel, William A. Lahoz   +4 more
doaj   +1 more source

Radiation measurements from polar and geosynchronous satellites [PDF]

, 1978
The following topics are discussed: (1) cloud effects in climate determination; (2) annual variation in the global heat balance of the earth; (3) the accuracy of precipitation estimates made from passive microwave measurements from satellites; (4 ...
Ellis, J. S., Hillger, D. W., Kidder, S. Q., Vonderhaar, T. H.   +3 more
core   +1 more source

Temporal variations in the acoustic signal from faculae

, 2012
The integrated brightness of the Sun shows variability on time-scales from minutes to decades. This variability is mainly caused by pressure mode oscillations, by granulation and by dark spots and bright faculae on the surface of the Sun.
Aigrain, Anderson, Appourchaux, Appourchaux, Berger, Berger, Brandenburg, Böhm-Vitense, C. Karoff, Chaplin, Chaplin, Chaplin, De Pontieu, Del, Fletcher, Fröhlich, Fröhlich, García, Gough, Handberg, Harvey, Harvey, Houdek, Iben, Kjeldsen, Lefebvre, Libbrecht, Lomb, Ludwig, Ludwig, Metcalfe, Michel, Nordlund, Toutain, Trampedach, Vázquez Ramió, Wedemeyer-Böhm, Wilks   +37 more
core   +1 more source

High Pressure Densification Investigation of Li3PS4 and Li6PS5Cl Solid Electrolytes using Combine X‐Ray Diffraction, X‐Ray Absorption Tomography and Ionic Measurement

Advanced Functional Materials, EarlyView.
We used multiple analytical techniques at the Psiché beamline, Synchrotron Soleil, and at D20 instrument in Institut Laue Langevin, to study the densification of thiophosphate solid electrolytes Li3PS4 and Li6PS5Cl. Our combined X‐ray diffraction, absorption tomography, absorption density, neutron power diffraction, and ionic conductivity analyses ...
Oskar Thompson, Ove Korjus, Adrien Fauchier‐Magnan, Clément Albin, Sergio F. Mayer, Emmanuelle Suard, Thomas Hansen, Laura Henry, Nicolas Guignot, Vittoria Pischedda, Sylvie Le Floch, Claire Villevieille   +11 more
wiley   +1 more source

Radiation measurements from polar and geosynchronous satellites [PDF]

, 1974
Nimbus 5 satellite data and its use to study climate and develop climate model experiments are examined. Data cover: (1) physical basis for understanding long range and climate monitoring and prediction problem, (2) delineating energy loss to space ...
Vonderhaar, T. H.
core   +3 more sources

Bright unintended electromagnetic radiation from second-generation Starlink satellites

Astronomy & Astrophysics
We report on the detection of unintended electromagnetic radiation (UEMR) from the second-generation of Starlink satellites. Observations with the LOFAR radio telescope between 10 to 88 MHz and 110 to 188 MHz show broadband emission covering the frequency ranges from 40 to 70 MHz and 110 to 188 MHz from the v2-Mini and v2-Mini Direct-to-Cell Starlink ...
C. G. Bassa, F. Di Vruno, B. Winkel, G. I. G. Józsa, M. A. Brentjens, X. Zhang   +5 more
openaire   +5 more sources

Satellite power system (SPS) brightness due to reflected sunlight [PDF]

, 1980
The development and operation of a Satellite Power System would place very large structures in orbit around earth for several decades. Sunlight reflected off such structures, particularly specular components from large flat areas, is expected to create ground illumination that will attract observers.
openaire   +2 more sources