Results 111 to 120 of about 14,211,114 (251)

Computing and the Internet (The Real Astronomy)

open access: yes, 2008
Professional Astronomers talk about how modern computing and the Internet have changed the way astronomy is conducted.
Centre for Astrophysics and Supercomputing
core   +1 more source

Kinematics of Supernova Remnants Using Multiepoch Maximum Likelihood Estimation: Chandra Observation of Cassiopeia A as an Example

open access: yesThe Astrophysical Journal
Decadal changes in a nearby supernova remnant (SNR) were analyzed using a multiepoch maximum likelihood estimation (MLE) approach. To achieve greater accuracy in capturing the dynamics of SNRs, kinematic features and point-spread function effects were ...
Yusuke Sakai   +4 more
doaj   +1 more source

Metasurface‐Based Multidimensional Light‐Field Manipulation: From Technologies to Applications

open access: yesAdvanced Science, EarlyView.
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Heliang Yin   +6 more
wiley   +1 more source

WAsp: The Wideband (W) Adaptive-scale Pixel (Asp) Deconvolution Algorithm for Interferometric Imaging

open access: yesThe Astronomical Journal
This paper introduces the Wide-band Asp-Clean ( WAsp ) algorithm, a novel scale-sensitive image reconstruction method tailored for wide-band imaging applications.
M. Hsieh, S. Bhatnagar, U. Rau
doaj   +1 more source

Applying the Hands-On Universe Image Processing Tool to Other Sciences

open access: yes, 1998
In the Science Club of the Technical High School Affiliated with Tokyo Institute of Technology, we tried participating in the Hands-On Universe (HOU) astronomical education program in 1997.
Hamane, Toshihiko   +3 more
core  

Ag Nanowire‐Integrated MoS2/ZnO Heterojunctions for Highly Efficient Photogenerated Charge Transfer

open access: yesAdvanced Electronic Materials, Volume 11, Issue 6, May 2025.
A versatile strategy is reported for fabricating multi‐dimensional heterojunctions with significantly improved charge transfer capability. By integrating Ag nanowires with a MoS2/ZnO heterojunction, a fourfold increase in surface photovoltage is achieved, reaching 200 mV under visible light illumination.
Anh Thi Nguyen   +8 more
wiley   +1 more source

Detecting Galactic Rings in the DESI Legacy Imaging Surveys with Semisupervised Deep Learning

open access: yesThe Astrophysical Journal Supplement Series
The ring structures of disk galaxies are vital for understanding galaxy evolution and dynamics. However, due to the scarcity of ringed galaxies and challenges in their identification, traditional methods often struggle to efficiently obtain statistically
Jianzhen Chen   +5 more
doaj   +1 more source

Low‐Power Control Of Resistance Switching Transitions in First‐Order Memristors

open access: yesAdvanced Electronic Materials, EarlyView.
Joule losses are a serious concern in modern integrated circuit design. In this regard, minimizing the energy necessary for programming memristors should be handled with care. This manuscript presents an optimal control framework, allowing to derive energy‐efficient programming voltage protocols for resistance switching devices. Following this approach,
Valeriy A. Slipko   +3 more
wiley   +1 more source

A Single Volatile VO2 Memristor Enabling Neuromorphic Perception, Learning, and Computing

open access: yesAdvanced Electronic Materials, EarlyView.
A single volatile VO2 memristor fabricated via atomic layer deposition is demonstrated as a multifunctional neuromorphic device enabled by intrinsic threshold‐switching dynamics. The device reproduces neuron‐like integration and firing, short‐timescale associative learning, temporal ECG pattern classification, and nociceptive responses to electrical ...
Bingkai Ding   +7 more
wiley   +1 more source

Swinburne Astronomy Online Graduations, March 2007

open access: yes, 2007
Swinburne Astronomy Online graduates, March 2007. From left to right: Huseyin Topuz (Turkey) and David Hall (Australia)
Ayse Topuz
core   +1 more source

Home - About - Disclaimer - Privacy