Results 61 to 70 of about 1,075,136 (370)

Global models of planetary system formation in radiatively-inefficient protoplanetary discs [PDF]

open access: yes, 2011
(Abridged) We present the results of N-body simulations of planetary systems formation in radiatively-inefficient disc models, where positive corotation torques may counter the rapid inward migration of low mass planets driven by Lindblad torques. The aim of this work is to examine the nature of planetary systems that arise from oligarchic growth in ...
arxiv   +1 more source

Ontology‐Based Data Acquisition, Refinement, and Utilization in the Development of a Multilayer Ferrite Inductor

open access: yesAdvanced Engineering Materials, Volume 27, Issue 8, April 2025.
Multilayer ferrite inductor prototypes are fabricated by cofiring metallized tapes of NiCuZn ferrite and glass‐ceramic composite. Prerequisites for a predictive component simulation are discussed. An automated data‐pipeline stores and semantically links the experimental data acquired in the study according to a domain ontology.
Björn Mieller   +8 more
wiley   +1 more source

Searching for Binary Stars in Planetary Nebulae Using the ISIS Image Subtraction Software [PDF]

open access: yes, 2011
We explored the theory that binary central stars of planetary nebulae may be contributing factor in the formation of planetary nebulae. We searched for this photometric variability in central stars of planetary nebulae because consistent periodic ...
Schwartz, Samantha
core   +2 more sources

Giant Planet Companion to 2MASSW J1207334-393254

open access: yes, 2005
We report new VLT/NACO imaging observations of the young, nearby brown dwarf 2MASSW J1207334-393254 and its suggested planetary mass companion (2M1207 b).
A.-M. Lagrange   +40 more
core   +3 more sources

Robo-AO Kepler Survey IV: the effect of nearby stars on 3857 planetary candidate systems [PDF]

open access: yes, 2018
We present the overall statistical results from the Robo-AO Kepler planetary candidate survey, comprising of 3857 high-angular resolution observations of planetary candidate systems with Robo-AO, an automated laser adaptive optics system.
Baranec, Christoph   +9 more
core   +3 more sources

Environmental Impact Assessment of Copper‐Alloy Production Using Process Simulation and Semantic Modeling

open access: yesAdvanced Engineering Materials, Volume 27, Issue 8, April 2025.
In the current research, how environmental impacts of products can be tracked through complex production networks using semantic data and environmental impact calculations is demonstrated. Here, the example of secondary copper production and the subsequent production of copper alloys is discussed.
Mohsin Sajjad   +3 more
wiley   +1 more source

Backlash Analysis of Gear Transmission of Parallel Uniform Planetary Gear

open access: yesJixie chuandong, 2018
Based on the NGW planetary gear transmission system,a gear transmission of parallel uniform planetary gear is proposed to reduce the transmission error of asteroid transmission system and improve its transmission accuracy.
Guo Jing   +3 more
doaj  

Parallel Finite Element Algorithm for Large Elastic Deformations: Program Development and Validation

open access: yesEng
A comprehensive understanding of large elastic deformation, characterized by its nonlinear strain and stress properties, is vital for examining tectonic deformation across geological timescales.
Yuhang Chen, Caibo Hu, Huai Zhang
doaj   +1 more source

The Pacific Decadal Oscillation modulated marine heatwaves in the Northeast Pacific during past decades

open access: yesCommunications Earth & Environment, 2023
The Pacific Decadal Oscillation has been suggested to play an important role in driving marine heatwaves in the Northeast Pacific during recent decades.
Xianglin Ren   +4 more
doaj   +1 more source

Binarity of Transit Host Stars - Implications on Planetary Parameters [PDF]

open access: yes, 2009
Straight-forward derivation of planetary parameters can only be achieved in transiting planetary systems. However, planetary attributes such as radius and mass strongly depend on stellar host parameters. Discovering a transit host star to be multiple leads to a necessary revision of the derived stellar and planetary parameters.
arxiv   +1 more source

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