Results 161 to 170 of about 304,444 (325)

Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates

The Astrophysical Journal Supplement Series
We collected near-infrared spectra of 65 cool stars with the NASA Infrared Telescope Facility and analyzed them to calculate accurate metallicities and stellar parameters.
Rebecca Gore, Steven Giacalone, Courtney D. Dressing, Emma V. Turtelboom, Ashley Schroeder, Charles D. Fortenbach, Kevin K. Hardegree-Ullman, Jon K. Zink, Andrew W. Mayo, Joshua E. Schlieder, Jessie L. Christiansen   +10 more
doaj   +1 more source

Effect of the planetary system on the nearly-parabolic comets

, 1965
Joseph L. Brady
openalex   +1 more source

Kinematics and dynamics of galactic systems as probed by Planetary Nebulae samples [PDF]

, 1997
H. Dejonghe, P. Vauterin, K. Van Caelenberg, S. Durand, Anne Mathieu   +4 more
openalex   +1 more source

High‐Entropy Alloys and Oxides as Supercapacitor Electrodes: A Structural and Electrochemical Perspective for Energy Storage

Advanced Sustainable Systems, EarlyView.
This study compares the electrochemical performance of high‐entropy alloys (HEA) and oxides (HEO) as supercapacitor electrodes. HEO demonstrates superior energy and power density due to its capacitive behavior and surface redox reactions, while HEA relies on diffusion‐controlled processes.
Öyküm Başgöz, Ahmet Güngör, Ömer Güler, Emre Erdem   +3 more
wiley   +1 more source

Phenomenological Modelling and Fault Diagnosis of Planetary Gear Systems with a Tooth Crack

Jixie chuandong
Fault mechanism is the basis of fault diagnosis, and modelling is an important means to investigate the fault mechanism. The existing research on modelling of planetary gear systems mainly includes the dynamic modelling and the phenomenological modelling.
Liu Zongyao, Mao Shixiang, Wang Yadong, Zhu Wenliang, Liu Baoguo, Liu Shihua   +5 more
doaj  

Stability of planetary systems with bifurcation theory

, 1977
V. Szebehely, Richard McKenzie
openalex   +1 more source

Enhancing the Mechanical Properties of Inherently Brittle, Biobased and Biodegradable Polyhydroxybutyrate (PHB) Polymer by Cotton Fibre Reinforcement and Interfacial Grafting

Advanced Sustainable Systems, EarlyView.
This study enhances biobassed, biodegradable polyhydroxybutyrate (PHB)s strength and ductility by reinforcing it with polyvinyl alcohol (PVA)‐coated cotton fibres and further improving interfacial bonding through maleic anhydride (MA) grafting. In addition to mechanical performance, the approaches significantly improve the gas barrier properties of the
Yilin He, Vinod Kumar Kannaujiya, Linguangze Zhuo, Wilson Ling, Chun H. Wang, Cyrille Boyer, Jin Zhang   +6 more
wiley   +1 more source

Statistical Distribution Function of Orbital Spacings in Planetary Systems

The Astronomical Journal
The minimum orbital separation of planets in long-stable planetary systems is often modeled as a step function, parameterized with a single value ${{\rm{\Delta }}}_{\min }$ (measured in mutual Hill radius of the two neighboring planets).
Jeremy Dietrich, Renu Malhotra, Dániel Apai   +2 more
doaj   +1 more source

Working Group on Planetary System Nomenclature (Wgpsn): (Groupe de Travail Pour la Nomenclature du Systeme Planetaire) [PDF]

, 2000
K. Aksnes, M. E. Davies, C. de Bérgh, M. Ya. Marov, B. G. Marsden, P. Moore, Tobias Owen, V. V. Shevchenko, B. A. Smith, J. Blue, G. A. Burba, L. R. Gaddis, Patrick Masson   +12 more
openalex   +1 more source

Life Cycle Assessment of Magnesium‐Impregnated Biochar Production and its Application for Nutrient Removal and Soil Improvement in Rice Cultivation

Advanced Sustainable Systems, EarlyView.
This study evaluates the environmental trade‐offs of different rice husk management strategies using a life cycle assessment (LCA) approach. It compares biochar production for water treatment and soil improvement with direct incineration for energy generation.
José Lugo‐Arias, Jose Villa‐Parejo, Guido Escorcia, Julia González‐Álvarez, Aymer Maturana, Sonia Aguirre‐Forero, Nelson Piraneque‐Gambasica, Carlos Barraza‐Heras   +7 more
wiley   +1 more source