Results 81 to 90 of about 22,046,683 (361)

DIVISION III: PLANETARY SYSTEMS SCIENCE [PDF]

Proceedings of the International Astronomical Union, 2008
The meeting was opened by Ted Bowell, president, at 11 am. The 2006 Division III meetings were reviewed by Guy Consolmagno, secretary; as the minutes of those meetings have already been published, they were assumed to be approved.
Edward L. G. Bowell, Karen J. Meech, Iwan P. Williams, Alan P. Boss, Guy J. Consolmagno, Régis Courtin, Julio A. Fernández, Bo Å. S. Gustafson, Walter F. Huebner, Anny-Chantal Levasseur-Regourd, Mikhail Ya. Marov, Michel Mayor, Rita M. Schulz, Pavel Spurný, Giovanni B. Valsecchi, Jun-ichi Watanabe, Iwan P. Williams, Adolf N. Witt   +17 more
openaire   +6 more sources

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

On the Utility (or Futility) of Using Stable Water Isotopes to Constrain the Bulk Properties of Tropical Convection

Journal of Advances in Modeling Earth Systems, 2018
Atmospheric water‐vapor isotopes have been proposed as a potentially powerful constraint on convection, which plays a critical role in Earth's present and future climate.
Suqin Q. Duan, Jonathon S. Wright, David M. Romps   +2 more
doaj   +1 more source

The planetary commons: A new paradigm for safeguarding Earth-regulating systems in the Anthropocene

Proceedings of the National Academy of Sciences of the United States of America
The Anthropocene signifies the start of a no-analogue trajectory of the Earth system that is fundamentally different from the Holocene. This new trajectory is characterized by rising risks of triggering irreversible and unmanageable shifts in Earth ...
J. Rockström, Louis J. Kotzé, S. Milutinović, Frank Biermann, V. Brovkin, J. Donges, Jonas Ebbesson, Duncan French, J. Gupta, Rakhyun E. Kim, T. Lenton, Dominic Lenzi, N. Nakicenovic, Barbara Neumann, Fabian Schuppert, R. Winkelmann, K. Bosselmann, Carl Folke, Wolfgang Lucht, D. Schlosberg, Katherine Richardson, Will Steffen   +21 more
semanticscholar   +1 more source

Characterization of the planetary system Kepler-101 with HARPS-N

, 2014
We characterize the planetary system Kepler-101 by performing a combined differential evolution Markov chain Monte Carlo analysis of Kepler data and forty radial velocities obtained with the HARPS-N spectrograph.
A. Bonomo, A. Sozzetti, C. Lovis, L. Malavolta, K. Rice, L. Buchhave, L. Buchhave, D. Sasselov, A. Cameron, D. Latham, E. Molinari, F. Pepe, S. Udry, L. Affer, D. Charbonneau, R. Cosentino, C. Dressing, X. Dumusque, Pedro Figueira, A. Fiorenzano, S. Gettel, A. Harutyunyan, R. Haywood, K. Horne, M. López-Morales, M. Mayor, G. Micela, F. Motalebi, V. Nascimbeni, David F. Phillips, G.H.M. Piotto, D. Pollacco, D. Queloz, D. Ségransan, A. Szentgyorgyi, Christopher A. Watson   +35 more
semanticscholar   +1 more source

Low‐Temperature Exsolution of Cobalt From Perovskite Nanoparticles via Bead Milling for Enhanced Electrocatalytic Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
High‐temperature requirements and complex synthesis limit the practical use of perovskite‐based metal exsolution catalysts. This study addresses these limitations by employing bead milling, enabling efficient metal exsolution at a significantly lower temperature (300 °C) from La0.6Sr0.4CoO3‐δ nanoparticles. Consequently, the catalytic mass activity for
Sang‐Mun Jung, Youngkwang Kim, Dong‐Hwan Yang, Yoona Kim, Kyu‐Su Kim, Gogwon Choe, Jinhyeon Lee, Kyuwook Ihm, Si‐Young Choi, Junwoo Son, Yong‐Tae Kim   +10 more
wiley   +1 more source

行星传动系统的振动特性研究

Jixie chuandong, 2012
Aiming at the failure problem of planetary transmission system due to the resonance in the process of actual application,by using 3D modeling software Pro/E a planetary transmission system entity model is established,the modal analysis of planetary ...
陈俊锋, 刘晓辉, 谭长均
doaj  

Democratising planetary boundaries: experts, social values and deliberative risk evaluation in Earth system governance

Journal of Environmental Policy and Planning, 2019
Recent debates about the concept of planetary boundaries recall longstanding concerns about whether ecological limits are compatible with ecological democracy.
Jonathan Pickering, Åsa Persson
semanticscholar   +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

Analysis of Coupling Characteristic of the Planetary Multi-stage Gear Transmission System

Jixie chuandong, 2017
In order to study the coupling vibration mechanism of the planetary multi-stage gear transmission system,the dimensionless dynamics equations of the planetary multi-stage gear transmission system which contains a two-stage fixed-axis gear and a one-stage
Wang Xin, Li Yousheng
doaj