Results 61 to 70 of about 42,046 (306)

The Promise of Solid Lubricants for a Sustainable Future

Advanced Materials, EarlyView.
Lubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Philipp G. Grützmacher, Andrey A. Voevodin, András Korényi‐Both, Maria Clelia Righi, Christopher DellaCorte, Nazlim Bagcivan, Ali Erdemir, Carsten Gachot   +7 more
wiley   +1 more source

Planets Around Solar Twins/Analogs (PASTA). I. High-precision Stellar Chemical Abundances for 17 Planet-hosting Stars and the Condensation Temperature Trend

The Astrophysical Journal
The Sun is depleted in refractory elements compared to nearby solar twins, which may be linked to the formation of giant or terrestrial planets. Here we present high-resolution, high signal-to-noise spectroscopic data for 17 solar-like stars hosting ...
Qinghui Sun, Sharon Xuesong Wang, Tianjun Gan, Chenyang Ji, Zitao Lin, Yuan-Sen Ting, Johanna Teske, Haining Li, Fan Liu, Xinyan Hua, Jiaxin Tang, Jie Yu, Jiayue Zhang, Mariona Badenas-Agusti, Andrew Vanderburg, George R. Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Jon M. Jenkins, Richard P. Schwarz, Tristan Guillot, Thiam-Guan Tan, Dennis M. Conti, Kevin I. Collins, Gregor Srdoc, Chris Stockdale, Olga Suarez, Roberto Zambelli, Don Radford, Khalid Barkaoui, Phil Evans, Allyson Bieryla   +32 more
doaj   +1 more source

Beyond the Drake Equation: A Time-dependent Inventory of Habitable Planets and Life-bearing Worlds in the Solar Neighborhood

The Astrophysical Journal, 2023
We introduce a mathematical framework for statistical exoplanet population and astrobiology studies that may help direct future observational efforts and experiments.
Piero Madau
doaj   +1 more source

Collisions in the solar system - I. Impacts of the Apollo-Amor-Aten asteroids upon the terrestrial planets [PDF]

Monthly Notices of the Royal Astronomical Society, 1985
On determine, a l'aide d'une nouvelle technique, la probabilite de collision entre chacun des asteroides de population connue (4 Aten, 34 Apollo et 38 Amor) et chacune des planetes ...
D. I. Steel, W. J. Baggaley
openaire   +1 more source

Performance Constraints of All‐Perovskite Tandem Solar Cells in Low‐Intensity, Low‐Temperature Environments

Advanced Materials, EarlyView.
All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen, Etienne Beier, Francisco Peña‐Camargo, Jarla Thiesbrummel, Gianluca Boccarella, Paria Forozi Sowmeeh, Martin Stolterfoht, Dieter Neher, Kai Oliver Brinkmann, Thomas Riedl, Felix Lang   +10 more
wiley   +1 more source

The outer solar system

EPJ Web of Conferences, 2009
The outer solar system extends beyond a heliocentric distance of 5 AU. It contains the giant planets and their systems (rings and satellites), the Kuiper belt, the comets (except those which approach episodically the inner solar system) and, at its outer
Encrenaz T.
doaj   +1 more source

Detectability of Earth-like Planets in Circumstellar Habitable Zones of Binary Star Systems with Sun-like Components

, 2012
Given the considerable percentage of stars that are members of binaries or stellar multiples in the Solar neighborhood, it is expected that many of these binaries host planets, possibly even habitable ones.
Eggl, Siegfried, Haghighipour, Nader, Pilat-Lohinger, Elke   +2 more
core   +2 more sources

Exoplanet interiors and habitability [PDF]

, 2019
More than 1000 exoplanets with a radius smaller than twice that of the Earth are currently known, mainly thanks to space missions dedicated to the search of exoplanets.
Hoolst, Tim Van, Noack, Lena, Rivoldini, Attilio   +2 more
core   +1 more source

Transparent, Sprayable Plastic Films for Luminescent Down‐Shifted‐Assisted Plant Growth

Advanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
Spreading the light: A modular approach to down‐shifting europium‐containing polyoxotitanium luminescent cages is developed, allowing their incorporation into sprayable plastic coatings on agricultural greenhouses for accelerated plant growth. Abstract The world's steadily growing population and global heating due to climate change are a threat to food
Rosa Müller, Bibian Okokhere‐Edeghoghon, Norbert J. Janowicz, Andrew D. Bond, Gabriele Kociok‐Kohn, Lynne M. Roxbee Cox, Diana Garzon, Toby W. Waine, Ian G. Truckell, Ewan Gage, Andrew J. Thompson, Dmitry Busko, Ian A. Howard, Monica S. Saavedra, Bryce S. Richards, Boris Breiner, Petra Cameron, Dominic S. Wright   +17 more
wiley   +1 more source

Modeling Planetary System Formation with N-Body Simulations: Role of Gas Disk and Statistics Comparing to Observations

, 2011
During the late stage of planet formation when Mars-size cores appear, interactions among planetary cores can excite their orbital eccentricities, speed their merges and thus sculpture the final architecture of planet systems.
Andrews, Armitage, Chatterjee, Fischer, Garaud, Gullbring, Haisch, Huigen Liu, Ida, Ida, Ida, Ida, Ikoma, Ji-Lin Zhou, Johnson, Jurić, Kennedy, Kokubo, Kretke, Kretke, Laughlin, Lee, Lin, Lin, Nagasawa, Ogihara, Rafikov, Safronov, Sano, Shakura, Su Wang, Tanaka, Terquem, Vorobyov, Wang, Wittenmyer, Wright, Zhou, Zhou   +38 more
core   +1 more source