Results 81 to 90 of about 36,303 (299)

Formation of the Planets [PDF]

open access: yesSymposium - International Astronomical Union, 1981
A timetable for an evolutionary sequence of processes, which begins with the formation of the solar nebula being nearly in equilibrium and ends with the planetary formation, is presented. Basic features of the processes and grounds for the estimation of time-scales are explained for each of the processes.
openaire   +1 more source

Models of giant planet formation with migration and disc evolution

open access: yes, 2005
We present a new model of giant planet formation that extends the core-accretion model of Pollack et al. (1996, Icarus, 124, 62) to include migration, disc evolution and gap formation. We show that taking these effects into account can lead to much more
Mordasini, C.   +7 more
core   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

open access: yesAdvanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon   +3 more
wiley   +1 more source

Inside-Out Planet Formation

open access: yes, 2018
I present a short overview of the Inside-Out Planet Formation (IOPF) model (Chatterjee & Tan 2014, ApJ, 780, 53) for sequential in situ formation of the Kepler-discovered super-Earth population of close-in multi-planet systems at the pressure trap ...
Tan, Jonathan, Tan, Jonathan (5981279)
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

Ionized Envelopes Around Protoplanets and the Role of Radiative Feedback in Gas Accretion

open access: yesThe Astrophysical Journal
Planetary growth within protoplanetary disks involves the accreting of material from their surroundings, yet the underlying mechanisms and physical conditions of the accreting gas remain debated.
Matías Montesinos   +7 more
doaj   +1 more source

Theory of planet formation and comparison with observation

open access: yes, 2011
The planetary mass-radius diagram is an observational result of central importance to understand planet formation. We present an updated version of our planet formation model based on the core accretion paradigm which allows us to calculate planetary ...
Klahr H.   +11 more
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

Dynamics of Aggregation in Systems of Self-Propelled Rods

open access: yesEntropy
We highlight camphene–camphor–polypropylene plastic as a useful material for self-propelled objects that show aggregation while floating on a water surface.
Richard J. G. Löffler, Jerzy Gorecki
doaj   +1 more source

Planet formation and disc dynamics in stellar clusters and misaligned binary systems

open access: yes, 2009
PhDIn this thesis I investigate the formation and dynamics of planets and protoplanetary discs, subject to external gravitational perturbations.
Fragner, Moritz Matthias
core  

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