Results 51 to 60 of about 66,246 (264)

Planets in orbit around β Pictoris formed the orbital architecture of planetesimal belts? [PDF]

open access: yesEarth, Planets and Space, 2010
We report near-infrared imaging observations of the β Pic dust disk, from which we infer the orbital architecture of planetesimal belts that remain near mean motion resonances (MMRs) with a planet at 62 AU. Our results reveal that one of the previously identified planetesimal belts lies in the 2/3 MMR with the planet, similar to the resonant relation ...
Kimura, Hiroshi   +6 more
openaire   +2 more sources

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

open access: yesAdvanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang   +11 more
wiley   +1 more source

The JCMT BISTRO Survey: Magnetic Fields Align with Orbital Structure in the Galactic Center

open access: yesThe Astrophysical Journal Letters
We present the magnetic field in the dense material of the Central Molecular Zone (CMZ) of the Milky Way, traced in 850 μ m polarized dust emission as part of the James Clerk Maxwell Telescope B -fields in STar-forming Region Observations survey.
Janik Karoly   +31 more
doaj   +1 more source

Dual-active-site engineering via orbital modulation of Fe single atoms on defective TiO2 for enhanced photocatalytic NO removal

open access: yesNano Research
Nitrogen monoxide (NO), a critical precursor to particulate matter with an aerodynamic diameter ≤ 2.5 μm (PM2.5) and ozone formation, requires efficient abatement at atmospheric low concentrations (< 1 ppm), yet conventional photocatalysts struggle with ...
Huan Shang   +14 more
doaj   +1 more source

Coulomb localization in orbital degenerate, doped Mott insulators

open access: yesAIP Advances, 2018
We study electron localization in a three-band extended Hubbard model describing the t2g electrons of doped vanadium perovskites such as La1−xCaxVO3, where Ca defects are represented by Coulomb potentials.
Adolfo Avella   +2 more
doaj   +1 more source

EDTA as a corrosion inhibitor for Al in 0.5 M HCl: adsorption, thermodynamic and theoretical study

open access: yesJournal of Electrochemical Science and Engineering, 2016
In this study; EDTA is used in very small amount (10-10 M) as an inhibitor for the Al corrosion in 0.5 M HCl. Thermodynamic and adsorption parameters are calculated.
Rehab Ebaid Azooz
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao   +6 more
wiley   +1 more source

Research of Forming Trajectory of Multi-branches Rose Curve of Double Eccentric Sets Transmission for Orbital Forming Press Head

open access: yesJixie chuandong, 2017
The vector motion model is built to study the trajectory tracking of the orbital forming press head,the motion trajectory of the orbital head with different speed and direction is simulated by using MATLAB software,the motion trajectory is multi ...
Gong Xiaotao, Geng Pei
doaj  

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

The Common Envelope Evolution Outcome. II. Short-orbital-period Hot Subdwarf B Binaries Reveal a Clear Picture

open access: yesThe Astrophysical Journal
Common envelope evolution (CEE) is vital for forming short-orbital-period compact binaries. It covers many objects, such as double compact merging binaries, Type Ia supernovae progenitors, binary pulsars, and X-ray binaries.
Hongwei Ge   +8 more
doaj   +1 more source

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