Results 111 to 120 of about 85,153 (320)

Understanding the assembly of Kepler's compact planetary systems

open access: yes, 2014
The Kepler mission has recently discovered a number of exoplanetary systems, such as Kepler-11 and Kepler-32, in which ensembles of several planets are found in very closely packed orbits (often within a few percent of an AU of one another).
Alexander, R. D.   +2 more
core   +1 more source

Tuning Cation (Dis)Order in Cr‐Based Li‐Excess Oxide Cathode Materials to Improve Li+ Transport Properties

open access: yesAdvanced Energy Materials, EarlyView.
Partially disordered Cr‐based Li‐rich oxides are developed, featuring ordered, layered‐like environments integrated through a common oxygen sublattice with cation‐mixed regions. This activates new Li+ diffusion channels, enabling these cathodes to be used in their as‐synthesized form with micron‐sized particles.
Maciej Moździerz   +10 more
wiley   +1 more source

Resonant capture of multiple planet systems under dissipation and stable orbital configurations

open access: yes, 2016
Migration of planetary systems caused by the action of dissipative forces may lead the planets to be trapped in a resonance. In this work we study the conditions and the dynamics of such resonant trapping.
Voyatzis, George
core   +1 more source

Exploring Salinity Gradient Power in Sweden: Key Factors, Machine Learning Predictive Modeling, and Life Cycle Assessment

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This study optimizes salinity gradient power generation using reverse electrodialysis (RED) by analyzing key operational parameters through factorial experiments and machine learning. Life cycle assessment reveals RED environmental impact and sustainability compared to other renewables, offering insights into future material choices and system ...
Younes Mohammadi   +5 more
wiley   +1 more source

改进遗传算法在NGW行星齿轮传动可靠性优化设计中的应用

open access: yesJixie chuandong, 2013
A new method combined a floating-point encoding genetic algorithm with dynamic penalty function is solved the constraint problems,and migration strategy is introduced in the genetic algorithm to speed up the search of the global optimal solution.Besides ...
张东浩   +4 more
doaj  

Effects of Thermodynamics on the Concurrent Accretion and Migration of Gas Giants in Protoplanetary Disks

open access: yesUniverse
Accretion and migration usually proceed concurrently for giant planet formation in the natal protoplanetary disks. Recent works indicate that the concurrent accretion onto a giant planet imposes significant impact on the planetary migration dynamics in ...
Hening Wu, Ya-Ping Li
doaj   +1 more source

Collective intelligence for addressing community planetary health resulting from salinity prompted by sea level rise

open access: yesThe Journal of Climate Change and Health, 2023
Sea level rise-induced salinity encroachment is causing various community-level planetary health impacts in coastal areas worldwide. The coastal area of Bangladesh is no exception.
Byomkesh Talukder   +6 more
doaj  

Evolution of inclined planets in three-dimensional radiative discs

open access: yes, 2011
While planets in the solar system only have a low inclination with respect to the ecliptic there is mounting evidence that in extrasolar systems the inclination can be very high, at least for close-in planets.
Ayliffe   +35 more
core   +1 more source

A Strategy to Prevent Fluorine‐Induced Transition Metal Dissolution in Lithium‐Ion Batteries

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This study uses LiTFSI‐based carbonate electrolyte to suppress fluorine‐ion‐induced transition metal dissolution and crosstalk in NMC811||graphite cells, resulting in enhanced capacity retention. Anodic dissolution of the positive electrode current collector is prevented using tantalum instead of aluminum, representing a diagnostic method to ...
YeonJu Kim   +4 more
wiley   +1 more source

Large Fluctuations within 1 au in Protoplanetary Disks

open access: yesThe Astrophysical Journal
Protoplanetary disks are often assumed to change slowly and smoothly during planet formation. Here, we investigate the time evolution of isolated disks subject to viscosity and a disk wind. The viscosity is assumed to increase rapidly at around 900 K due
John Chambers
doaj   +1 more source

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