Results 31 to 40 of about 2,913 (115)

On the Abundance of Circumbinary Planets

open access: yes, 2014
We present here the first observationally based determination of the rate of occurrence of circumbinary planets. This is derived from the publicly available Kepler data, using an automated search algorithm and debiasing process to produce occurrence ...
Armstrong, D. J.   +7 more
core   +1 more source

Implicit Central Difference Approximations of Averaged Dynamics of Highly Oscillatory Systems With Applications to Direct Optimal Control

open access: yesOptimal Control Applications and Methods, EarlyView.
Trajectory optimization of highly oscillatory systems can require huge computational efforts if the horizon of the problem is much larger than the duration of a single cycle. To alleviate this effort, stroboscopic averaging methods can be used, which utilize local single‐cycle simulations of the oscillatory dynamics, to then approximate and integrate ...
Jakob Harzer   +3 more
wiley   +1 more source

Metabolite‐based resistance in wheat varieties to aphid virus vectors: progress and future opportunities

open access: yesPest Management Science, EarlyView.
Sitobion avenae and Rhopalosiphum padi are major pests on wheat. Natural product‐based aphid resistance holds promise for the sustainable control of these pests. The current literature is discussed, highlighting knowledge gaps and challenges that need addressing. Abstract Cereal aphids, Sitobion avenae and Rhopalosiphum padi, cause severe yield loss in
Alexander N Borg   +3 more
wiley   +1 more source

The Gold‐Maker of Animal Oil and Prussian Blue Fame — The Chemical and Medicinal Science Philosophy of Johann Conrad Dippel

open access: yesThe Chemical Record, EarlyView.
The radical Pietist Johann Conrad Dippel was a self‐proclaimed adept – a maker of gold and the philosophers’ stone. He was also a magister of theology, a doctor of medicine, and a self‐taught chemist, who coinvented the pigment Prussian Blue together with Johann von Diesbach, became known for his animal pyrolysis oil, his wonder‐wound balm, his ...
Curt Wentrup
wiley   +1 more source

Stability Limits of Circumbinary Planets: Is There a Pile-up in the Kepler CBPs?

open access: yes, 2018
The stability limit for circumbinary planets (CBPs) is not well defined and can depend on initial parameters defining either the planetary orbit or the inner binary orbit. We expand on the work of Holman & Wiegert (1999, AJ 117, 621) to develop numerical
Haghighipour, Nader   +4 more
core   +1 more source

Revolutionising agri‐energy: A comprehensive survey on the applications of artificial intelligence in agricultural energy internet

open access: yesEnergy Internet, EarlyView.
Abstract Considering the rapid advancements in AI technologies such as reinforcement learning, ChatGPT, and deep learning, this paper conducts a comprehensive survey of the technological landscape of AI in the energy and agriculture sectors. It delineates the evolutionary path of AI technologies in smart grids and precision agriculture, highlighting ...
Xueqian Fu   +7 more
wiley   +1 more source

Transit Timing and Duration Variations for the Discovery and Characterization of Exoplanets

open access: yes, 2017
Transiting exoplanets in multi-planet systems have non-Keplerian orbits which can cause the times and durations of transits to vary. The theory and observations of transit timing variations (TTV) and transit duration variations (TDV) are reviewed.
A Pál   +73 more
core   +1 more source

Comparative efficacy of intravitreal anti‐VEGF therapy for neovascular age‐related macular degeneration: A systematic review with network meta‐analysis

open access: yesActa Ophthalmologica, EarlyView.
Abstract The aim of this review was to evaluate the comparative efficacy of intravitreal anti‐vascular endothelial growth factor (anti‐VEGF) therapy for neovascular AMD. We searched 12 literature databases for randomised clinical trials (RCT) on anti‐VEGF therapy for neovascular AMD and extracted data on: change from baseline to 12 months in best ...
Emilie T. S. Butler   +17 more
wiley   +1 more source

Evolution of circumbinary planets around eccentric binaries: The case of Kepler-34

open access: yes, 2015
The existence of planets orbiting a central binary star system immediately raises questions regarding their formation and dynamical evolution. Recent discoveries of circumbinary planets by the Kepler space telescope has shown that some of these planets ...
Haghighipour, Nader, Kley, Wilhelm
core   +1 more source

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