Results 141 to 150 of about 185,159 (346)

Rotation‐Based Snap‐Fit Mechanical Metamaterials

Advanced Science, EarlyView.
This article introduces a rotational snap‐fit structure composed of a circular cantilever beam snap‐fit and a circular groove. It demonstrates multistability during the rotation process. This innovative design has potential applications in various fields, such as mechanical metamaterials, shape deformation, and robotic grippers, showcasing its ...
Rui Xu, Yulong He, Chuanqing Chen, Jiapeng Sun, Xin Li, Ming‐Hui Lu, Yan‐Feng Chen   +6 more
wiley   +1 more source

Anisotropic Jeans models of stellar kinematics: second moments including proper motions and radial velocities [PDF]

, 2012
This is an addendum to the paper by Cappellari (2008, MNRAS, 390, 71), which presented a simple and efficient method to model the stellar kinematics of axisymmetric stellar systems.
Cappellari, Michele
core   +3 more sources

Circumnuclear Dust in Luminous Early-type Galaxies. I. Sample Properties and Stellar Luminosity Models

The Astrophysical Journal
Dusty circumnuclear disks (CNDs) in luminous early-type galaxies (ETGs) show regular, dynamically cold molecular gas kinematics. For a growing number of ETGs, Atacama Large Millimeter/sub-millimeter Array (ALMA) CO imaging and detailed gas-dynamical ...
Jared R. Davidson, Benjamin D. Boizelle, Jonelle L. Walsh, Aaron J. Barth, Emma Rasmussen, Andrew J. Baker, David A. Buote, Jeremy Darling, Luis C. Ho, Kyle M. Kabasares, Jonathan H. Cohn   +10 more
doaj   +1 more source

Machine Learning‐Driven Surrogate Modeling for Optimization of Triboelectric Nanogenerator Design Parameters

Advanced Electronic Materials, EarlyView.
Design of Experiment and machine learning regression models are leveraged to analyze four process parameters (thickness, pore ratio, applied force, and frequency) of a contact‐separation triboelectric nanogenerator with graphene‐PDMS and aluminum layers using experimental data for the validation of predicted performance and the optimization of the ...
Mohammad Abrar Uddin, Myeongju Lim, Rubiga Kim, Barrett London Burgess, Ken Roberts, Junghyun Kim, Taeil Kim   +6 more
wiley   +1 more source

KINEMATICS AND STELLAR POPULATIONS IN ISOLATED LENTICULAR GALAXIES

The Astronomical Journal, 2015
By combining new long-slit spectral data obtained with the Southern African Large Telescope (SALT) for 9 galaxies with previously published our observations for additional 12 galaxies we study the stellar and gaseous kinematics as well as radially resolved stellar population properties and ionized gas metallicity and excitation for a sample of isolated
Ivan Yu. Katkov, Olga K. Sil'chenko, Olga K. Sil'chenko, A. Y. Kniazev   +3 more
openaire   +3 more sources

Boon and Bane of Local Solid State Chemistry on the Performance of LSM‐Based Solid Oxide Electrolysis Cells

Advanced Energy Materials, EarlyView.
Cation diffusion causes an increase in the catalytically active MIEC region in solid oxide cells. Simultaneously, it leads to the additional formation and growth of secondary structures in the electrolyte, which reduces the oxygen diffusion. Abstract High‐temperature solid oxide cells are highly efficient energy converters.
Hanna Türk, Xuan Quy Tran, Patricia König, Adnan Hammud, Vaibhav Vibhu, Franz‐Philipp Schmidt, Dirk Berger, Sören Selve, Vladimir Roddatis, Daniel Abou‐Ras, Frank Girgsdies, Yu‐Te Chan, Thomas Götsch, Hebatallah Ali, Izaak C. Vinke, L.G.J (Bert) de Haart, Michael Lehmann, Axel Knop‐Gericke, Karsten Reuter, Rüdiger‐A. Eichel, Christoph Scheurer, Thomas Lunkenbein   +21 more
wiley   +1 more source

Stream Members Only: Data-driven Characterization of Stellar Streams with Mixture Density Networks

The Astrophysical Journal
Stellar streams are sensitive probes of the Milky Way’s gravitational potential. The mean track of a stream constrains global properties of the potential, while its fine-grained surface density constrains galactic substructure. A precise characterization
Nathaniel Starkman, Jacob Nibauer, Jo Bovy, Jeremy J. Webb, Kiyan Tavangar, Adrian Price-Whelan, Ana Bonaca   +6 more
doaj   +1 more source

Template‐Assisted Growth of CsxFA1‐xPbI3 with Pulsed Laser Deposition for Single Junction Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Template‐assisted pulsed laser deposition (PLD) enables the growth of phase‐pure α‐CsxFA1‐xPbI3 perovskite films. Stoichiometric transfer and uniform coverage on planar and textured substrates is demonstrated, delivering reproducible single‐junction perovskite solar cells.
Suzana Kralj, Kerem Artuk, Alexander Wieczorek, Nikolai Orlov, Zeinab Eftekhari, Rebecca Saive, Erik Garnett, Sebastian Siol, Christian M. Wolff, Monica Morales‐Masis   +9 more
wiley   +1 more source

3-Dimensional Kinematics in low foreground extinction windows of the Galactic Bulge: Radial Velocities for 6 bulge fields

, 2012
The detailed structure of the Galactic bulge still remain uncertain. The strong difficulties of obtaining observations of stars in the Galactic bulge have hindered the acquisition of a kinematic representation for the inner kpc of the Milky Way.
Anderson, Anderson, Athanassoula, Babusiaux, Benjamin, Binney, Cabrera-Lavers, Clarkson, Collinge, Cudworth, Dwek, Englmaier, Holtzman, Howard, K. Kuijken, Kozłowski, Kuijken, Kuijken, M. Soto, Martinez-Valpuesta, McWilliam, McWilliam, Minniti, Nataf, Peterson, Picaud, R. M. Rich, Rangwala, Rattenbury, Rattenbury, Rich, Rich, Rich, Sadler, Saito, Schwarzschild, Schwarzschild, Sharples, Shen, Soto, Spaenhauer, Terndrup, Tonry, Zhao, Zhao, Zhao, Zhao, Zoccali   +47 more
core   +1 more source

Late-type stars members of young stellar kinematic groups [PDF]

arXiv, 1999
We have compiled a catalog of late-type stars (F5-M) member of representative young disk stellar kinematic groups: the Local Association (Pleiades moving group, 20 - 150 Myr), Ursa Mayor group (Sirius supercluster, 300 Myr), and Hyades supercluster (600 Myr).
arxiv