Results 151 to 160 of about 3,167,347 (295)

AstroSkyFlow: An Astronomical Sky Image Flow Simulator for Time Domain Survey Validation and Machine Learning

open access: yesThe Astronomical Journal
Modern time-domain optical surveys produce massive data volumes that require robust, high-fidelity simulated datasets for developing and validating automated pipelines and machine learning (ML) models.
Kexin Li   +7 more
doaj   +1 more source

Comparison of Gene Enrichment Between Prostate Tissue and Urine for Non‐Invasive Biomarker Development

open access: yesThe Prostate, EarlyView.
ABSTRACT Background For prostate cancer (PCa), early diagnosis and biomarker‐based patient stratification can improve clinical decision‐making and post‐treatment prognosis. PCa biomarkers are best validated in tissue following comprehensive histopathologic review; however, urinary biomarkers can be obtained non‐invasively and are therefore safer and ...
Yuandong Xing   +11 more
wiley   +1 more source

Lightning electromagnetic emission location using arrival time differencing (LEELA): An introduction to the Met Office's next generation Very Low Frequency lightning location system

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This paper describes the Met Office's new lightning location system LEELA. A brief overview of the upgraded hardware and geolocation algorithms is given. LEELA has improved lightning detection capabilities, especially at night. When comparing LEELA to the previous ATDnet system against ground truths LEELA has 100% storm detection efficiency within 5 km
Graeme Marlton   +7 more
wiley   +1 more source

Astronomy Without a Telescope

open access: yes, 2001
Created by author Nick Strobel, "Astronomy Notes" is an educational resource for introductory astronomy classes for undergraduates. This section describes: the celestial sphere, coordinate systems, the motion of the stars.
Strobel, Nick
core  

Sliding Mode Control in Aerospace Applications: A Survey

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

A critical evaluation of the new Hall of Astronomy of the University of Mexico Science Museum

open access: yes, 2008
On December 2004, the newly designed astronomy hall at Universum, the science museum of the Universidad Nacional Autonoma de Mexico, was opened to the public.
Doddoli, Consuelo   +1 more
core  

Self‐Assembly of a Colloidal Honeycomb Crystal in Silico for Topological Valley Photonics

open access: yesSmall, EarlyView.
The self‐assembly of a colloidal honeycomb crystal is demonstrated in computer simulations, using an assembly strategy that not only suppresses the formation of real‐space topological defects observed experimentally but also yields topological photonic properties in reciprocal space.
Adam Walker   +5 more
wiley   +1 more source

Data processing software for radio astronomy [PDF]

open access: yesProceedings of 8th European VLBI Network Symposium — PoS(8thEVN), 2007
openaire   +1 more source

Teaching and Learning Astronomy

open access: yes, 2010
I review the teaching and learning of astronomy, in elementary and secondary school, colleges and universities, and for the public through astronomy outreach and communication.
Percy, John R.
core  

Atomic‐Scale Control of Substrate‐Spin Coupling Via Vertical Manipulation of a 2D Metal‐Organic Framework

open access: yesSmall, EarlyView.
A slightly buckled 2D kagome metal‐organic framework (MOF) adsorbed on Ag(111) hosts localized spins which are Kondo‐screened by the underlying metal substrate. Using the tip of a scanning tunneling microscope, the MOF can be vertically manipulated to controllably change its adsorption height and with it, the Kondo coupling strength.
Benjamin Lowe   +11 more
wiley   +1 more source

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