Results 181 to 190 of about 1,254,363 (318)
Astrometric observations of comets and minor planets [PDF]
Comets and planet crossing asteroids are observed so that accurate positions can be determined. The observations are made with the Palomar 1.5 m telescope equipped with a CCD array.
Gibson, J., Williams, J. G.
core +2 more sources
Advanced Science, Volume 12, Issue 17, May 8, 2025.A chloroplast‐like CSS@BP composite with superior photothermoelectric conversion performance is synthesized via sonochemical methods. A portable Attitude Recognition Box (ARB) incorporating a CSS@BP/Bi2Te3 photothermal conversion array is developed, which achieves precise attitude recognition through bidirectional current detection induced by ...
Liangshutong Zhang +5 more
wiley +1 more source
MachinesWithin planetary gear transmissions (PGTs), mode shapes and eigenfrequencies hold a crucial significance in operational reliability and efficacy. Mode shapes explain the unique motion patterns inherent in PGT systems.
Mahmoud Mabrouk +4 more
doaj +1 more source
On the effect of Chromatic Dispersion of the Atmosphere on the Parallaxes of Centauri and Orionis, and on a method of determining its effect on the Value of the Solar Parallax derived from Heliometer Observations of Minor Planets [PDF]
, 1897 David Gill
openalex +1 more source
Silicon Carbide Photonic Crystal Photoelectrode
Advanced Science, EarlyView.A 3C‐SiC photoelectrode with a slanted parabolic pore photonic crystal architecture enhances photogeneration for efficient photoelectrochemical water splitting through the remarkable light‐trapping capabilities of photonic crystal slow‐light modes.
Xiwen Zhang, Sajeev John
wiley +1 more source
A COMPARISON OF PHOTOGRAPHIC WITH THEORETICAL POSITIONS OF SIX MINOR PLANETS [PDF]
, 1913 A. Kidder
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Advanced Science, EarlyView.Inspired by exercise‐induced metabolic rewiring and EV secretion, this study shows that in vivo metabolic engineering strategy can reprogram EV secretion pattern and simultaneously attenuate multiple tissue injury in CKD status, highlighting that it is a potential strategy for treating diverse chronic diseases.
Meng Zhao +11 more
wiley +1 more source
Study of ephemeris accuracy of the minor planets [PDF]
The current state of minor planet ephemerides was assessed, and the means for providing and updating these emphemerides for use by both the mission planner and the astronomer were developed.
Brooks, D. R., Cunningham, L. E.
core +1 more source