Results 71 to 80 of about 173,443 (344)

An excess of very bright stars in the inner bulge [PDF]

Mon.Not.Roy.Astron.Soc. 320 (2001) 31, 2000
From an analysis of the stars remaining in central regions of the Galaxy after subtracting those belonging to the disc and the bulge, we deduce that the inner bulge must have an extra young population with respect the rest of the bulge. It is shown that there is a higher ratio of very bright stars in the central bulge than than there is in the outer ...
arxiv   +1 more source

Current and Future Cornea Chip Models for Advancing Ophthalmic Research and Therapeutics

Advanced Biology, EarlyView.
This review analyzes cornea chip technology as an innovative solution to corneal blindness and tissue scarcity. The examination encompasses recent developments in biomaterial design and fabrication methods replicating corneal architecture, highlighting applications in drug screening and disease modeling while addressing key challenges in mimicking ...
Minju Kim, Kanghoon Choi, Amy Lin, Jungkyu Kim   +3 more
wiley   +1 more source

Multiwavelength Bulge–Disk Decomposition for the Galaxy M81 (NGC 3031). I. Morphology

The Astrophysical Journal Supplement Series, 2023
A panchromatic investigation of morphology for the early-type spiral galaxy M81 is presented in this paper. We perform bulge–disk decomposition in M81 images at a total of 20 wave bands from far-UV to near-IR (NIR) obtained with GALEX, Swift, Sloan ...
Jun-Yu Gong, Ye-Wei Mao, Hua Gao, Si-Yue Yu   +3 more
doaj   +1 more source

Deep Transfer Learning for Wall Bulge Endpoints Regression for Autonomous Decoration Robots

IEEE Access, 2022
Wall bulge maintenance and repairing is an essential task for autonomous decoration robots. The problem of the wall bulge endpoints regression refers to identifying the position of the wall bulge endpoints in spatial coordinates.
Mahmoud A. Eldosoky, Fanyu Zeng, Xin Jiang, Shuzhi Sam Ge   +3 more
doaj   +1 more source

Chemical abundances for 11 bulge stars from high-resolution, near-IR spectra

, 2009
It is debated whether the Milky Way bulge has the characteristics of a classical bulge sooner than those of a pseudobulge. Detailed abundance studies of bulge stars is a key to investigate the origin, history, and classification of the bulge.
Alves-Brito, A., Asplund, M., Barbuy, B., Edvardsson, B., Gustafsson, B., Hill, V., Kaufl, H. U., Melendez, J., Minniti, D., Ortolani, S., Renzini, A., Ryde, N., Zoccali, M.   +12 more
core   +1 more source

Our Milky Way as a Pure-Disk Galaxy -- A Challenge for Galaxy Formation [PDF]

, 2010
Bulges are commonly believed to form in the dynamical violence of galaxy collisions and mergers. Here we model the stellar kinematics of the Bulge Radial Velocity Assay (BRAVA), and find no sign that the Milky Way contains a classical bulge formed by ...
Agertz, Beaulieu, Binney, Clarkson, Combes, Combes, Debattista, Freeman, Freudenreich, Fulbright, Fulbright, Fux, Fux, Howard, Howard, Kormendy, Kormendy, Kormendy, Kormendy, Maihara, Nakasato, Rangwala, Rich, Sellwood, Shen, Stanek, Toomre, Toomre, White, Wyse, Zhao, Zoccali   +31 more
core   +2 more sources

Mechanisms of Increasing Weld Depth during Temporal Power Modulation in High‐Power Laser Beam Welding

Advanced Engineering Materials, EarlyView.
Temporal power modulation increases weld depth in high‐power laser beam welding of dissimilar round bars by nearly 20% compared to same average continuously welded welding power. The mechanism of action also applies to sheet welding and depends on the inertia of keyhole depth for the modulated laser beam power.
Jan Grajczak, David Reynders, Christian Nowroth, Jens Twiefel, Jörg Wallaschek, Sarah Nothdurft, Jörg Hermsdorf, Stefan Kaierle   +7 more
wiley   +1 more source

A Look At Three Different Scenarios for Bulge Formation [PDF]

, 1998
In this paper, we present three qualitatively different scenarios for bulge formation: a secular evolution model in which bulges form after disks and undergo several central starbursts, a primordial collapse model in which bulges and disks form ...
Baugh C. M., de Jong R. S., de Jong R. S., de Jong R. S., Friedli D., Joseph Silk, Kauffmann G., Lacey C., Laura Cayon, Madau P., Peletier R. F., Pozzetti L., Rychard Bouwens, Tinsley B. M.   +13 more
core   +2 more sources

The Galactic bulge: a review [PDF]

Proceedings of the International Astronomical Union, 2007
AbstractThe Milky Way is the only galaxy for which we can resolve individual stars at all evolutionary phases, from the Galactic center to the outskirt. The last decade, thanks to the advent of near IR detectors and 8 meter class telescopes, has seen a great progress in the understanding of the Milky Way central region: the bulge.
Dante Minniti, Manuela Zoccali
openaire   +3 more sources

Bioinspired Design of Isotropic Lattices with Tunable and Controllable Anisotropy

Advanced Engineering Materials, EarlyView.
This study introduces nested isotropic lattices, integrating architectural elements like nesting orders and orientations inspired by bioarchitectures. The design enables tunable anisotropy across nine mono‐nest and twenty multi‐nest lattices with 252 parametric variations, demonstrating transitions from shear‐ to tensile‐compression‐dominant behaviors ...
Ramalingaiah Boda, Biranchi Panda, Shanmugam Kumar   +2 more
wiley   +1 more source