Results 81 to 90 of about 121,687 (300)

The Mass-Metallicity Relation for Giant Planets

open access: yes, 2016
Exoplanet discoveries of recent years have provided a great deal of new data for studying the bulk compositions of giant planets. Here we identify 47 transiting giant planets ($20 M_\oplus < M < 20 M_{\mathrm{J}}$) whose stellar insolation is low enough (
Fortney, Jonathan J.   +3 more
core   +1 more source

Charting the Path to Increased Oil Palm Output in Ghana Beyond Area Expansion: Technology or Managerial Capacity — Which Leads the Way?

open access: yesAgribusiness, EarlyView.
ABSTRACT This study sets out to investigate the prospects for raising oil palm output in sub‐Saharan Africa, particularly Ghana, without further expansion of cropland. Given global concerns about oil palm's role in deforestation and land use change, the focus is on enhancing productivity on existing farmlands.
Jacob Asravor   +3 more
wiley   +1 more source

Searching for GEMS: TOI-6383Ab, a Giant Planet Transiting an M3-dwarf Star in a Binary System

open access: yesThe Astronomical Journal
We report on the discovery of a transiting giant planet around the 3500 K M3-dwarf star TOI-6383A located 172 pc from Earth. It was detected by the Transiting Exoplanet Survey Satellite and confirmed by a combination of ground-based follow-up photometry ...
Lia Marta Bernabò   +24 more
doaj   +1 more source

Metallicities of Planet Hosting Stars: A Sample of Giants and Subgiants

open access: yes, 2010
This work presents a homogeneous derivation of atmospheric parameters and iron abundances for a sample of giant and subgiant stars which host giant planets, as well as a control sample of subgiant stars not known to host giant planets.
Arenou   +39 more
core   +1 more source

Planning and Control Framework for a Quadruped Robot With Changeable Configuration

open access: yesAdvanced Intelligent Systems, EarlyView.
Multiconfiguration quadruped robots enhance adaptability by switching between mammal‐like and reptile‐like morphologies. This study presents a nonlinear constraint‐based motion planner integrated with a hierarchical whole‐body controller, enabling robust configuration switching and locomotion on complex terrains. Experiments on slopes, irregular bricks,
Guanglin Lu   +5 more
wiley   +1 more source

A New Database of Giant Impacts over a Wide Range of Masses and with Material Strength: A First Analysis of Outcomes

open access: yesThe Planetary Science Journal
In the late stage of terrestrial planet formation, planets are predicted to undergo pairwise collisions known as giant impacts. Here, we present a high-resolution database of giant impacts for differentiated colliding bodies of iron–silicate composition,
Alexandre Emsenhuber   +6 more
doaj   +1 more source

On the Formation of Gas Giant Planets on Wide Orbits

open access: yes, 2006
A new suite of three dimensional radiative, gravitational hydrodynamical models is used to show that gas giant planets are unlikely to form by the disk instability mechanism at distances of ~100 AU to ~200 AU from young stars.
Boss, Alan P.
core   +2 more sources

Variable and Supersonic Winds in the Atmosphere of an Ultrahot Giant Planet [PDF]

open access: gold, 2022
Anusha Pai Asnodkar   +6 more
openalex   +1 more source

Implantable Drug Delivery Systems for Skeletal Muscles and Eyes

open access: yesAdvanced NanoBiomed Research, EarlyView.
This review highlights the different types of recent implantable drug delivery systems (IDDS) fabricated for a use with skeletal muscles, and with eyes. It presents the developments already made and the current research directions, showing the evolution of IDDS and their great diversity.
Serge Ostrovidov   +8 more
wiley   +1 more source

A collisionless scenario for Uranus tilting

open access: yes, 2010
The origin of the high inclination of Uranus' spin-axis (Uranus' obliquity) is one of the great unanswered questions about the Solar system. Giant planets are believed to form with nearly zero obliquity, and it has been shown that the present behaviour ...
Boué, Laskar, Murray-Clay, Ward
core   +3 more sources

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