Results 51 to 60 of about 235,164 (217)

Beyond the Camera: Epidermal Sensor Platforms for Intelligent Facial Expression Recognition and Interactive Human Monitoring

open access: yesAdvanced Intelligent Systems, EarlyView.
Skin‐conformal epidermal sensors enable camera‐free intelligent facial monitoring by converting facial deformation and muscle activity into electrical signals through piezoresistive, capacitive, electrophysiologic, and self‐powered mechanisms. Coupled with artificial intelligence (AI), these platforms support facial expression recognition, human ...
Jeehyun Joung   +5 more
wiley   +1 more source

Accretion and Outflow in Active Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
AbstractI review accretion and outflow in active galactic nuclei. Accreti4on appears to occur in a series of very small-scale, chaotic events, whose gas flows have no correlation with the large-scale structure of the galaxy or with each other. The accreting gas has extremely low specific angular momentum and probably represents only a small fraction of
openaire   +2 more sources

The mode of gas accretion on to star-forming galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
It is argued that galaxies like ours sustain their star formation by transferring gas from an extensive corona to the star-forming disc. The transfer is effected by the galactic fountain -- cool clouds that are shot up from the plane to kiloparsec heights above the plane. The Kelvin-Helmholtz instability strips gas from these clouds.
MARINACCI, FEDERICO   +5 more
openaire   +4 more sources

Accretion-generated rings: coplanar and noncoplanar structures

open access: yes, 2018
The most of known rings in galaxy discs are formed under action of ``classical'' dynamical mechanisms like bar resonance or head-on collision with satellite. However a small fraction of galactic rings can be explained by capture of external matter like
Sil'chenko Olga   +5 more
core   +1 more source

Bridging Scales: Modeling Suppressed Bondi Accretion on Black Holes and Its Impact on Galaxy Growth

open access: yesThe Astrophysical Journal
The accretion and feedback processes governing supermassive black hole (SMBH) growth span an enormous range of spatial scales, from the Event Horizon to the circumgalactic medium.
Antonio J. Porras-Valverde   +6 more
doaj   +1 more source

Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation

open access: yesOpen Astronomy, 2010
We present a model of chemical and spectrophotometric evolution of disk galaxies based on a stochastic self-propagating star formation scenario. The model incorporates galaxy formation through the process of accretion, chemical and photometric evolution ...
Mineikis T., Vansevičius V.
doaj   +1 more source

Engineered 3D Fibronectin‐Based Environments Modulate the Pathogenic Profile of Arthritic Synovial Fibroblasts

open access: yesAdvanced NanoBiomed Research, EarlyView.
Fibroblast behavior is shaped by the surrounding microenvironment, yet conventional culture systems often fail to capture disease‐relevant phenotypes. Here, platform‐dependent responses of healthy and arthritic synovial fibroblasts are examined across 2D and 3D culture systems. Distinct inflammatory and proliferative signatures emerge, highlighting how
Aneesah Khan   +13 more
wiley   +1 more source

Galaxy Formation through Filamentary Accretion at z = 6.1 [PDF]

open access: yesThe Astrophysical Journal, 2017
Abstract We present Atacama Large Millimeter/submillimeter Array observations of the dust continuum and [C ii] 158 μm line emission from the z = 6.0695 Lyman-Break Galaxy (LBG) WMH5. These observations at 0.″3 spatial resolution show a compact (∼3 kpc) main galaxy in dust and [C ii] emission, with a “tail” of emission extending to the ...
G. C. Jones   +5 more
openaire   +3 more sources

The Properties of AGN in the context of X-ray Binaries [PDF]

open access: yes, 2009
Black holes are undoubtedly the most fascinating and exciting objects in the Universe, capturing the imagination of scientists and film writers alike. It has been a long standing objective of the scientific community to understand how these objects work ...
Middleton, Matthew James   +1 more
core  

Long-term optical and X-ray variability of the Seyfert galaxy Markarian 79 [PDF]

open access: yes, 2009
We present the results of concurrent X-ray and optical monitoring of the Seyfert 1 galaxy Mrk 79 over a period of more than 5 yr. We find that on short to medium time-scales (days to a few tens of days) the 2–10 keV X-ray and optical u- and V-band fluxes
Horne, Keith Douglas   +16 more
core   +1 more source

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