Results 51 to 60 of about 14,885 (312)

Identifying Planetary Dynamics Utilizing the SINDy Algorithm

open access: yes, 2021
This project deals with the undertaking of figuring out to what extent the SINDy algorithm canproduce useable dynamical models for prediction of celestial masses in the Solar System.
Rønne, Rolf Skjoldbirk   +2 more
core  

Evolution of perturbed dynamical systems: analytical computation with time independent accuracy [PDF]

open access: yes, 2016
An analytical method for investigation of the evolution of dynamical systems with independent on time accuracy is developed for perturbed Hamiltonian systems.
A. A. Kocharyan, A. V. Gurzadyan
core   +1 more source

Millimeter Dust Emission and Planetary Dynamics in the HD 106906 System

open access: yes, 2022
Debris disks are dusty, optically thin structures around main sequence stars. HD 106906AB is a short-period stellar binary, host to a wide separation planet, HD 106906b, and a debris disk.
Hughes, A. Meredith   +12 more
core   +2 more sources

Suppression of Resonant Overstability at Sharp Migration Gradients

open access: yesThe Astrophysical Journal
Mean-motion resonances are expected to frequently arise at the inner edges of protoplanetary disks, where planet–disk interactions facilitate large-scale orbital convergence.
Konstantin Batygin   +2 more
doaj   +1 more source

High Center‐of‐Mass, Multi‐Legged Soft Robots Powered by Geometrically Encoded Liquid Crystal Elastomer Arc Appendages

open access: yesAdvanced Materials, EarlyView.
Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim   +5 more
wiley   +1 more source

Nocturnal Intraocular Pressure Monitoring With a Soft Contact Lens Sensor for Glaucoma Management

open access: yesAdvanced Materials, EarlyView.
A soft contact lens sensor enables continuous, noninvasive monitoring of nocturnal intraocular pressure (IOP) under closed‐eye sleep conditions. By integrating a highly compliant inductive–capacitive circuit onto a commercial lens, the device achieves record sensitivity and stable performance.
Yumin Dai   +19 more
wiley   +1 more source

Distinct impacts of diverse forcing agents on Arctic sea ice since the mid-twentieth century

open access: yesnpj Climate and Atmospheric Science
Arctic sea ice has undergone non-monotonic changes since the middle of the last century. Here, we investigate the cause of this behavior by isolating and quantifying the effects of anthropogenic aerosols, well-mixed greenhouse gases, and biomass burning ...
Yu-Chi Lee   +3 more
doaj   +1 more source

Negotiating in a Foreign Land: Understanding the Curious Interactions Between Intracellular Mitochondria and Internalized Nanoparticles

open access: yesAdvanced Materials Interfaces, EarlyView.
Therapeutic nano‐drug delivery systems interact with cellular mitochondria in a multitude of ways. While the complexity of such interactions disrupts the mitochondrial electron transport chain and increases reactive oxygen species production, thereby contributing to nanoparticle toxicity, they also present unique theranostic opportunities in diseases ...
Sourav Bhattacharjee
wiley   +1 more source

Simulation of Contact Force of Fault Planetary Gear System based on Virtual Prototype Technology

open access: yesJixie chuandong, 2015
In order to obtain the changing pattern of contact force of fault planetary gear system,a dynamics model of fault planetary gear system is established and the computation method for contact force of gear meshing based on Hertz theory is also introduced ...
Xiang Ling, Chen Tao, Hu Silei
doaj  

Earth and Mars Interior Structures Set by Remelting of the First Solid Mantle

open access: yesThe Astrophysical Journal Letters
Magma-ocean crystallization sets up the early structure and long-term evolution of terrestrial planets. Recent seismic evidence signals the presence of a silicate layer at the base of Mars’s mantle. Magma-ocean crystallization and subsequent overturn has
Antonio Manjón-Cabeza Córdoba   +2 more
doaj   +1 more source

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