Results 1 to 10 of about 36,097 (261)

Post-main-sequence planetary system evolution [PDF]

open access: yesRoyal Society Open Science, 2016
The fates of planetary systems provide unassailable insights into their formation and represent rich cross-disciplinary dynamical laboratories. Mounting observations of post-main-sequence planetary systems necessitate a complementary level of theoretical
Dimitri Veras
doaj   +2 more sources

Planetary Systems Biology [PDF]

open access: yesMolecular Cell, 2005
Combining paleogenetics, protein engineering, synthetic biology, and metabolic modeling, a planetary biology perspective is brought to bear on adaptive evolutionary events in ancient bacteria.
Department of Chemistry, University of Florida, Gainesville, FL 32611 USA ( host institution )   +2 more
openaire   +3 more sources

The (In)stability of Planetary Systems [PDF]

open access: yesThe Astrophysical Journal, 2004
37 pages, 49 figures, 13 tables, submitted to ...
Barnes, Rory, Quinn, Thomas
openaire   +2 more sources

Dynamical Habitability of Planetary Systems [PDF]

open access: yesAstrobiology, 2010
The problem of the stability of planetary systems, a question that concerns only multiplanetary systems that host at least two planets, is discussed. The problem of mean motion resonances is addressed prior to discussion of the dynamical structure of the more than 350 known planets.
Dvorak, Rudolf   +24 more
openaire   +4 more sources

PARAMETER OPTIMIZATION FOR A THERMAL SIMULATION OF AN URBAN AREA [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Urban heat island (UHI) phenomenon is a significant challenge in urban planning, and accurate temperature predictions are crucial for effective decision-making. The choice of material parameters is crucial to simulate a realistic temperature distribution
B. Kottler   +5 more
doaj   +1 more source

Origin and Formation of Planetary Systems [PDF]

open access: yesAstrobiology, 2010
To estimate the occurrence of terrestrial exoplanets and maximize the chance of finding them, it is crucial to understand the formation of planetary systems in general and that of terrestrial planets in particular. We show that a reliable formation theory should not only explain the formation of the Solar System, with small terrestrial planets within a
Alibert, Y.   +25 more
openaire   +6 more sources

On Populism, Planets, and Why Concepts Should Precede Definitions and Theory-Seeking

open access: yesSociologica, 2019
Despite its remarkable growth in recent years, the study of populism has long suffered from the lack of a comprehensive theory about its causes, development, and outcomes.
Takis S. Pappas
doaj   +1 more source

Planetary mass function and planetary systems [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
7 pages, MNRAS ...
openaire   +3 more sources

Fault diagnosis method of shearer planetary gear transmission systemunder variable speed conditions

open access: yesGong-kuang zidonghua, 2021
When the shearer cuts the coal seam, the planetary gear transmission system of the traction unit is in a variable speed working condition, and the structure of the planetary gear transmission system is complicated.
MAO Qinghua1,2,   +5 more
doaj   +1 more source

Research on the Coupled Phase-Tuning Vibration Characteristics of a Two-Stage Planetary Transmission System

open access: yesMachines, 2023
Mesh phasing has a dramatic impact on the static and dynamic behaviours of planetary gear systems. This research investigates the coupled phase-tuning mechanism of two-stage planetary gear systems and the corresponding relationship with the coupled ...
Pengfei Yan   +4 more
doaj   +1 more source

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