Results 61 to 70 of about 304,786 (306)
Neon, sulphur and argon abundances of planetary nebulae in the sub-solar metallicity Galactic anti-centre [PDF]
, 2017 Context: Spectra of planetary nebulae show numerous fine structure emission lines from ionic species, enabling us to study the overall abundances of the nebular material that is ejected into the interstellar medium.
Bernard Salas, J. +2 more
core +3 more sources
Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges
Advanced Functional Materials, EarlyView.Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley +1 more source
Analysis of Load Sharing Performance of Planetary Gear Reducer in Electric Vehicle Hub Motor
Jixie chuandong, 2017 As for the floating planetary gear reducer in hub motor,a dynamics equation of dual floating planetary transmission system is established,and then the calculation formula of load sharing coefficient is deduced.
Zhang Jiang, Qing Xunpeng, Chen Haoran
doaj
Advanced Functional Materials, EarlyView.ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley +1 more source
Terrestrial Planets: Comparative Planetology [PDF]
Papers were presented at the 47th Annual Meteoritical Society Meeting on the Comparative planetology of Terrestrial Planets. Subject matter explored concerning terrestrial planets includes: interrelationships among planets; plaentary evolution; planetary
core +1 more source
Application of recent results on the orbital migration of low mass planets: convergence zones [PDF]
, 2010 Previous models of the combined growth and migration of protoplanets needed large ad hoc reduction factors for the type I migration rate as found in the isothermal approximation.
Alibert, Y. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.We used multiple analytical techniques at the Psiché beamline, Synchrotron Soleil, and at D20 instrument in Institut Laue Langevin, to study the densification of thiophosphate solid electrolytes Li3PS4 and Li6PS5Cl. Our combined X‐ray diffraction, absorption tomography, absorption density, neutron power diffraction, and ionic conductivity analyses ...
Oskar Thompson +11 more
wiley +1 more source
H- and He-burning central stars and the evolution to white dwarfs
, 2002 The structure and evolution of central stars of planetary nebulae (CSPNe) is reviewed. CSPNe represent the rapid transitional stage between the Asymptotic Giant Branch (AGB) and the white-dwarf domain.
Bloecker, T.
core +1 more source
Advanced Functional Materials, EarlyView.A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He +8 more
wiley +1 more source
A Squirrel-cage Globoidal Cam Planetary Mechanism
Jixie chuandong, 2020 The globoidal cam planetary mechanism is difficult to machine， the assembly precision is difficult to guarantee， and its manufacturing cost is high. These problems are caused by the toroidal structure of the outer annulus cam. A new type of squirrel-cage
Gong Yan, Cao Jujiang, Zhang Yanhua
doaj