Results 121 to 130 of about 76,833 (285)

Giant planets: Clues on current and past organic chemistry in the outer solar system [PDF]

The giant planets of the outer solar system - Jupiter, Saturn, Uranus, and Neptune - were formed in the same flattened disk of gas and dust, the solar nebula, as the terrestrial planets were.
Atreya, Sushil K., Pollack, James B.
core   +1 more source

Predicting Performance of Hall Effect Ion Source Using Machine Learning

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park, Guentae Doh, Dongho Lee, Youngho Kim, Changmin Shin, Su‐Jin Shin, Young‐Chul Ghim, Sanghoo Park, Wonho Choe   +8 more
wiley   +1 more source

Three-dimensional Orbital Architectures and Detectability of Adjacent Companions to Hot Jupiters

The Astrophysical Journal
The orbital properties of the (as yet) small population of hot Jupiters with nearby planetary companions provide valuable constraints on the past migration processes of these systems.
Thomas MacLean, Juliette Becker
doaj   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source

Programmable‐Stiffness Tensegrity Continuum Robot for Adaptive Multicurvature On‐Orbit Assembly

Advanced Intelligent Systems, EarlyView.
A bioinspired tensegrity‐based continuum robot (BTCR) with programmable stiffness enables adaptive multicurvature morphing via coordinated intra‐ and intermodule regulation. A unified energy‐based framework predicts self‐equilibrium and deformation for serial modules. Experiments and Simulations demonstrate reconfiguration into hexagonal, circular, and
Yubin Wu, Yongliang Cao, Yi Jin, Ziyu Wang, Li‐Yuan Zhang, Changyong Chase Cao   +5 more
wiley   +1 more source

Unveiling a New Link: Cholesterol Deficiency in Smith–Lemli–Opitz and Niemann–Pick C as a Driver of Ciliopathies

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT The ciliopathies are a group of genetic disorders caused by defective function of either the primary cilia (a large number) or the motile cilia (a much smaller number). These have been defined as diseases with mutations in genes encoding individual ciliary or cilia‐associated proteins.
Robert P. Erickson, Maria Teresa Fiorenza   +1 more
wiley   +1 more source

The Uncertainty in Water Mass Fraction of Wet Planets

The Astrophysical Journal
Planets with masses between Earth and Neptune often have radii that imply the presence of volatiles, suggesting that water may be abundant in their interiors.
Michael Lozovsky
doaj   +1 more source

A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations

The Astronomical Journal
Kepler-51 is a ≲1 Gyr old Sun-like star hosting three transiting planets with radii ≈6–9 R _⊕ and orbital periods ≈45–130 days. Transit timing variations (TTVs) measured with past Kepler and Hubble Space Telescope (HST) observations have been ...
Kento Masuda, Jessica E. Libby-Roberts, John H. Livingston, Kevin B. Stevenson, Peter Gao, Shreyas Vissapragada, Guangwei Fu, Te Han, Michael Greklek-McKeon, Suvrath Mahadevan, Eric Agol, Aaron Bello-Arufe, Zachory Berta-Thompson, Caleb I. Cañas, Yayaati Chachan, Leslie Hebb, Renyu Hu, Yui Kawashima, Heather A. Knutson, Caroline V. Morley, Catriona A. Murray, Kazumasa Ohno, Armen Tokadjian, Xi Zhang, Luis Welbanks, Matthew C. Nixon, Richard Freedman, Norio Narita, Akihiko Fukui, Jerome P. de Leon, Mayuko Mori, Enric Palle, Felipe Murgas, Hannu Parviainen, Emma Esparza-Borges, Daniel Jontof-Hutter, Karen A. Collins, Paul Benni, Khalid Barkaoui, Francisco J. Pozuelos, Michaël Gillon, Emmanuël Jehin, Zouhair Benkhaldoun, Suzanne Hawley, Andrea S. J. Lin, Guđmundur Stefánsson, Allyson Bieryla, Mesut Yilmaz, Hakan Volkan Senavci, Eric Girardin, Giuseppe Marino, Gavin Wang   +51 more
doaj   +1 more source

Shrinkage Mitigation and Mechanical Properties of Cement‐Based Mortar With Silane‐Functionalized Hydrogels

Journal of Applied Polymer Science, EarlyView.
Schematic depiction of silane‐functionalized hydrogels utilized in this study along with chemical structures of the primary comonents (Acrylamide, N,N'‐methylenebisacrylamide, and 3‐(trimethoxysilyl) propyl methacrylate). ABSTRACT This study investigates the applications of silane‐loaded polymer hydrogels in field‐relevant cement‐based mortar intended ...
Daniel S. Hiller, Akul N. Seshadri, Christof Schröfl, Kendra A. Erk   +3 more
wiley   +1 more source

Diamonds in the outer planets

Eos, Transactions American Geophysical Union, 1981
The results of space exploration over the last 2 years have provoked considerable and widespread interest, among geoscientists, in the interiors of the outer planets. Even new data on remote Uranus and Neptune are becoming available, and so it is not unusual to expect a round of new speculation on their interior compositions and properties.
openaire   +1 more source