Results 61 to 70 of about 133,514 (345)

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Planetary eclipse mapping of CoRoT-2a. Evolution, differential rotation, and spot migration

, 2010
The lightcurve of CoRoT-2 shows substantial rotational modulation and deformations of the planet's transit profiles caused by starspots. We consistently model the entire lightcurve, including both rotational modulation and transits, stretching over ...
Auvergne, Barnes, Beck, Bouchy, Chapman, Czesla, Fröhlich, Gillon, Huber, J. H. M. M. Schmitt, Jetsu, K. F. Huber, Korhonen, Lanza, Pont, Rabus, S. Czesla, U. Wolter, Wolter   +18 more
core   +1 more source

Vladimir Aleksandrovich Kotelnikov: Pioneer of the sampling theorem, cryptography, optimal detection, planetary mapping [PDF]

, 2009
In 1933 the young Russian communications engineer Vladimir Aleksandrovich Kotelnikov published a paper in which he formulated for the first time in an engineering context the sampling theorem for lowpass and bandpass signals.
Bissell, Christopher
core   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

Advanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa, Moisés A. de Araújo, Joaquim Puigdollers, Pablo Ortega, Teresa Andreu, Cristobal Voz, Edgardo Saucedo, Lucia H. Mascaro   +7 more
wiley   +1 more source

Development Environment for Optimized Locomotion System of Planetary Rovers [PDF]

, 2011
This paper addresses the first steps that have been undergone to set up the development environement w.r.t optimization and to modelling and simulation of overall dynamics of the rover driving behaviour under all critical surface terrains, like soft and ...
Leite, Alexandre Carvalho, Rebele, Bernhard, Schäfer, Bernd   +2 more
core  

An Overview of the 13:8 Mean Motion Resonance between Venus and Earth

, 2009
It is known since the seminal study of Laskar (1989) that the inner planetary system is chaotic with respect to its orbits and even escapes are not impossible, although in time scales of billions of years.
A. Hanslmeier, C. Froeschlé, C. Froeschlé, Ch. Lhotka, E. Pilat-Lohinger, E. Pilat-Lohinger, F. Varadi, G.J. Sussman, H. Lichtenegger, J. Candy, J. Dufey, J. Laskar, J. Laskar, J. Laskar, J. Laskar, J. Laskar, J.E. Chambers, J.H. Applegate, J.L. Wisdom, K. Batygin, M. Delva, M. Henon, N. Murray, P. Reegen, R. Dvorak, R. Dvorak, R. Schwarz, S. Michtchenko, T. Kallinger, V. Eybl, Á. Bazsó   +30 more
core   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

MAPPING OF INNER AND OUTER CELESTIAL BODIES USING NEW GLOBAL AND LOCAL TOPOGRAPHIC DATA DERIVED FROM PHOTOGRAMMETRIC IMAGE PROCESSING [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
New estimation of fundamental geodetic parameters and global and local topography of planets and satellites provide basic coordinate systems for mapping as well as opportunities for studies of processes on their surfaces.
I. P. Karachevtseva, A. A. Kokhanov, J. F. Rodionova, A. Yu. Zharkova, M. S. Lazareva   +4 more
doaj   +1 more source

Olivine or Impact Melt: Nature of the "Orange" Material on Vesta from Dawn

, 2013
NASA's Dawn mission observed a great variety of colored terrains on asteroid (4) Vesta during its survey with the Framing Camera (FC). Here we present a detailed study of the orange material on Vesta, which was first observed in color ratio images ...
Ammanito, E., Becker, K., Cloutis, E., De Sanctis, M., Denevi, B., Gaffey, M., Garry, W., Gaskell, R., Kneisl, T., Le Corre, L., Li, J., Mittlefehldt, D., Nathues, A., O'Brien, D., Palmer, E., Peplowski, P., Prettyman, T., Raymond, C., Reddy, V., Russell, C., Schmedemann, N., Sierks, H., Yamashita, N.   +22 more
core   +1 more source