Results 91 to 100 of about 378,128 (332)

Sonochemical Functionalization of Glass

open access: yesAdvanced Functional Materials, EarlyView.
A new method for functionalizing glass using ultrasonication of aryl diazonium salts. Aryl radicals generated by ultrasounds react with glass, forming a stable, covalently bonded organic film. The functionalized glass adheres microorganisms such as microalgae, fungi, and bacteria, suggesting potential applications in enzyme production, filtration ...
Tiexin Li   +13 more
wiley   +1 more source

Singular value decomposition based satellite attitude determination using different sensor configurations

open access: yesInternational Journal of Metrology and Quality Engineering, 2017
Satellite's attitude can be determined by using several different ways. In order to use a recursive filter to determine the attitude especially after crucial intervals for the satellite including detumbling, eclipse, etc., single-frame methods can be ...
Cilden Guler Demet, Hajiyev Chingiz
doaj   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

open access: yesAdvanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer   +12 more
wiley   +1 more source

The Eclipse Expedition [PDF]

open access: yesNature, 1871
I WRITE you a brief account of the doings of the English Eclipse Expedition up to the present time, thinking it may be interesting to your readers.
openaire   +5 more sources

Temperature perturbations in the troposphere-stratosphere over Thumba (8.5° N, 76.9° E) during the solar eclipse 2009/2010 [PDF]

open access: yesAnnales Geophysicae, 2011
Measurements of atmospheric temperature profiles in the troposphere and lower stratosphere were made over Thumba Equatorial Rocket Launching Station (TERLS) (8.5° N, 76.9° E) during a partial solar eclipse (22 July 2009) and an annular solar eclipse ...
K. V. Subrahmanyam   +11 more
doaj   +1 more source

Total Solar Eclipse, January 24, 1925 [PDF]

open access: yes, 1925
On January 24, 1925, a total eclipse of the sun was visible throughout much of New England.
DeWolf, Halsey
core   +1 more source

Eclipse Timings of the Transient Low Mass X-ray Binary EXO0748-676. IV. The Rossi X-Ray Timing Explorer Eclipses

open access: yes, 2009
We report our complete database of X-ray eclipse timings of the low mass X-ray binary EXO0748-676 observed by the Rossi X-Ray Timing Explorer (RXTE) satellite.
Bevington   +20 more
core   +1 more source

Modeling Amateur Radio Soundings of the Ionospheric Response to the 2017 Great American Eclipse

open access: yesGeophysical Research Letters, 2018
On 21 August 2017, a total solar eclipse traversed the continental United States and caused large‐scale changes in ionospheric densities. These were detected as changes in medium‐ and high‐frequency radio propagation by the Solar Eclipse QSO Party ...
N. Frissell   +13 more
semanticscholar   +1 more source

Terahertz‐Driven Ultrafast Dynamics of Rare‐Earth Nickelates by Controlling Only the Charge Degree of Freedom

open access: yesAdvanced Functional Materials, EarlyView.
The THz drive of the Mott insulating state of a rare‐earth nickelate induces instantaneous insulator‐metal transition via quantum tunneling of valence electrons across the bandgap. This transition is pure electronic and highly non‐thermal, which may find its applications in ultrafast opto‐electronics with enhanced performance and minimal device size ...
Gulloo Lal Prajapati   +7 more
wiley   +1 more source

Sun, Earth and Moon. Relative movements and their consequences

open access: yesRevista Eureka sobre Enseñanza y Divulgación de las Ciencias, 2011
Cuando se pregunta a los estudiantes por la causa de las estaciones suelen responder: “en verano estamos más próximos al Sol y en invierno estamos más lejos del Sol”.
Cardenete García, Sebastián
doaj  

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