Results 71 to 80 of about 3,367,182 (237)

Suppression of Resonant Overstability at Sharp Migration Gradients

The Astrophysical Journal
Mean-motion resonances are expected to frequently arise at the inner edges of protoplanetary disks, where planet–disk interactions facilitate large-scale orbital convergence.
Konstantin Batygin, Ian R. Brunton, Alessandro Morbidelli   +2 more
doaj   +1 more source

Stability of resonant configurations during the migration of planets and constraints on disk-planet interactions [PDF]

, 2015
We study the stability of mean-motion resonances (MMR) between two planets during their migration in a protoplanetary disk. We use an analytical model of resonances and describe the effect of the disk by a migration timescale (T-m,T-i) and an ...
Delisle, J.-B., Delisle, J. -B., Correia, A. C. M., J.-B. Delisle, Laskar, J., A. C. M. Correia, J. Laskar, Correia, A.   +7 more
core   +1 more source

Coaxial Core–Shell Carbon–Tin Sulfide Nanohybrids as High‐Performance Electrodes for Long‐Life Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Illustration of the charge transport pathways in the plasma‐designed coaxial‐core–shell type SnS@VCN nanohybrid electrodes for supercapacitors, along with their excellent rate performance and long‐standing cycle life performance with other SnS‐based electrodes.
Anjana Baby, Janez Zavasnik, Janez Kovač, Neelakandan M. Santhosh   +3 more
wiley   +1 more source

Sculpting of Exoplanetary Systems Driven by a Misaligned Disk and Stellar Oblateness: Origin of Perpendicular Orbits in HD 3167

The Astrophysical Journal Letters
A significant proportion of exoplanets have been detected with highly tilted or even polar orbits relative to their host stars’ equatorial planes. These unusual orbital configurations are often linked to postdisk secular interactions among multiple ...
Tao Fu, Yue Wang
doaj   +1 more source

Constraining disk evolution prescriptions of planet population synthesis models with observed disk masses and accretion rates [PDF]

, 2019
While planets are commonly discovered around main-sequence stars, the processes leading to their formation are still far from being understood. Current planet population synthesis models, which aim to describe the planet formation process from the ...
J. P. Williams, Miotello, A., G. Lodato, A. Miotello, Testi, L., Mordasini, C., Williams, J. P., A. Emsenhuber, Lodato, G., Emsenhuber, A., L. Testi, Manara, C. F., C. Mordasini, C. F. Manara   +13 more
core   +2 more sources

Revealing Structure–Performance Relations in Core‐Shell Catalyst‐Based PEM Water Electrolyzer Anodes with Low Iridium Loading

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Table of Contents The TiO2@IrO2 core–shell architecture ensures high electronic conductivity even at a low iridium content of 10 wt%. The resulting catalyst layer shows significantly higher iridium utilization than a commercial reference, leading to improved PEMWE single‐cell performance at low iridium loading.
Selina Finger, Darius Hoffmeister, Tien‐Ching Ma, Lena Fiedler, A. Lucía Morales, Andreas Körner, Nico Roubicek, Leopold Lahn, Johannes Böhmer, Thomas Przybilla, Erdmann Spiecker, Olga Kasian, Anna T. S. Freiberg, Karl J. J. Mayrhofer, Simon Thiele, Chuyen van Pham, Andreas Hutzler   +16 more
wiley   +1 more source

Bifurcated Evolutionary Pathways in Multiplanet Systems Driven by Misaligned Protoplanetary Disks

The Astrophysical Journal Letters
Stellar obliquities, or spin–orbit angles, prevalent in exoplanet systems, can impose important constraints on their formation and evolution histories.
Tao Fu, Yue Wang, Weiduo Hu
doaj   +1 more source

Enhanced Urea Oxidation Reaction by Mn‐Doped Nickel Hydroxide From Wastewater

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Mn incorporation modifies the hydroxide structure and modulates the electronic properties of the Ni centers, promoting the formation of catalytically active NiOOH species. Mn dopants induce a favorable electronic effect but do not directly participate in the UOR mechanism, enhancing the overall urea oxidation rate and resulting in increased hydrogen ...
Filippo Bano, Da Chen, Daniele Perilli, Samuele Zambonin, Dario Mosconi, Marco Roverso, Veronica Celorrio, Cristiana Di Valentin, Laura Calvillo   +8 more
wiley   +1 more source

Implications for the formation of Oort cloud-like structures and interstellar comets in dense environments

Astronomy & Astrophysics
Most stars form in dense stellar environments, where frequent close encounters can strongly perturb and reshape the early architecture of planetary systems.
Torres Santiago
doaj   +1 more source

Drying‐Driven Microstructural Reorganization as a Key Origin of Rate Limitation in Multi‐Walled Carbon Nanotube‐Based Thick Electrodes for Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study shows drying‐driven microstructural reorganization as a key origin of rate limitations in multi‐walled carbon nanotubes (MWCNT)‐based thick electrodes. By decoupling transport properties, the work reveals that rapid evaporation can amplify thickness‐dependent CNT agglomeration, generating coupled electronic and ionic bottlenecks. Importantly,
So Min Gong, Seung Woo Song, Yonghwan Kim, Jiyoon Yoon, Jun Hyun Kang, Yeonsu Jung, Taehoon Kim, Seung Jae Yang, Jae Ho Kim   +8 more
wiley   +1 more source