Results 71 to 80 of about 21,151,583 (337)
The Planetary Science JournalThe TRAPPIST-1 planetary system is observationally favorable for studying if planets orbiting M stars can retain atmospheres and host habitable conditions.
Trent B. Thomas +5 more
doaj +1 more source
Evolution of Stars on The Establishment of The Solar System and Planetary System
Jurnal Ilmiah Pendidikan Fisika Al-Biruni, 2016 This research is the literature studies that provide an introduction to the theory of the formation and early evolution of solar system and planetary systems.
Khilyatul Khoiriyah
doaj +1 more source
Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite
Advanced Functional Materials, EarlyView.The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen +16 more
wiley +1 more source
CHARACTERIZING THE ORBITAL AND DYNAMICAL STATE OF THE HD 82943 PLANETARY SYSTEM WITH KECK RADIAL VELOCITY DATA [PDF]
, 2013 We present an updated analysis of radial velocity data of the HD 82943 planetary system based on 10 yr of measurements obtained with the Keck telescope.
Xianyu Tan +7 more
semanticscholar +1 more source
Planetary Boundaries: Separating Fact from Fiction. A Response to Montoya et al. [PDF]
, 2018 A recent article by Montoya et al. [idem, Planetary Boundaries for Biodiversity: Implausible Science, Pernicious Policies, Trends in Ecology & Evolution 33 (2018), no. 2, pp.
Steffen, W +12 more
core +1 more source
Chitin‐Derived Carbon‐Metal Functional Materials
Advanced Functional Materials, EarlyView.Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang +7 more
wiley +1 more source
Dynamical evolution of extrasolar planetary systems [PDF]
Proceedings of the International Astronomical Union, 2004 To date, more than 130 extrasolar planets around main sequence stars are revealed mainly by the Doppler radial velocity measurements. Due to the observational biases, most of the detected planets are moving in orbits close to the host stars, with some in highly eccentric orbits.
Ji-Lin Zhou, Yi-Sui Sun
openaire +1 more source
Imaging polarimetry of planetary and proto-planetary nebulae [PDF]
, 1997 Optical imaging polarimetry has been performed on a small sample of objects which are associated with that stage of stellar evolution occurring between the Asymptotic Giant Branch and full Planetary Nebula. Three such systems are considered, specifically,
Bowlzer, S.L., Bowlzer, S. L.
core
Advanced Functional Materials, EarlyView.A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon +4 more
wiley +1 more source
Decoding the Future of Exoplanets: Asteroseismic Confirmation of Subgiant and Red Giant Hosts
The Astrophysical JournalAsteroseismology has emerged as a powerful tool to unravel the intricate relationships between evolved stars and their planetary systems. In this study, we leverage this technique to investigate the evolutionary stages of five exoplanet host stars, each ...
Wen-Xu Lin +7 more
doaj +1 more source