Results 81 to 90 of about 11,014 (187)

Three-Dimensional Modeling and Indoor Positioning for Urban Emergency Response

open access: yesISPRS International Journal of Geo-Information, 2017
Three-dimensional modeling of building environments and indoor positioning is essential for emergency response in cities. Traditional ground-based measurement methods, such as geodetic astronomy, total stations, and global positioning system (GPS ...
Xin Zhang   +4 more
doaj   +1 more source

The Hands-On Universe Project and Modeling Instruction Based HOU: MI-HOU [PDF]

open access: yes, 2018
We describe here an evolving process to re-cast HOU (the Hands-On Universe project) into the conceptual framework, pedagogical structure, and teacher network of Modeling Instruction (“MI”).
Gould, Alan   +8 more
core  

Bayesian models for astrophysical data: using R, JAGS, Python, and Stan [PDF]

open access: yes, 2017
This comprehensive guide to Bayesian methods in astronomy enables hands-on work by supplying complete R, JAGS, Python, and Stan code, to use directly or to adapt. It begins by examining the normal model from both frequentist and Bayesian perspectives and
Rafael S. de Souza   +5 more
core   +1 more source

Bjet_MCMC: A New Tool to Automatically Fit the Broadband Spectral Energy Distributions of Blazars

open access: yesThe Astrophysical Journal
Multiwavelength observations are now the norm for studying blazars’ various states of activity, classifying them, and determining the possible underlying physical processes driving their emission.
Olivier Hervet   +2 more
doaj   +1 more source

Resolving Systematics in Deep Wide-field Imaging for Low Surface Brightness Astronomy [PDF]

open access: yes
The low surface brightness Universe is a treasure trove of extraordinarily interesting phenomena that are virtually unexplored. With advances in hardware and software in recent decades, astronomers are now capable of probing faint diffuse emission below ...
Liu, Qing
core  

Numerical modeling of the magnetosphere with data based internal magnetic field and arbitrary magnetopause [PDF]

open access: yes, 2011
We present a new model of the magnetospheric magnetic field. Using the finite element method, ChapmanFerraro problem is solved numerically in the considered approach.
Kartalev, M.D., Dobreva, P.S.
core  

Enhancing Pulsar Candidate Identification with Self-tuning Pseudolabeling Semisupervised Learning

open access: yesThe Astrophysical Journal
In the field of astronomy, machine-learning technologies are becoming increasingly crucial for identifying radio pulsars. However, the process of acquiring labeled data, which is both time-consuming and potentially biased, poses a significant limitation ...
Yi Liu   +3 more
doaj   +1 more source

Methods for Incorporating Model Uncertainty into Exoplanet Atmospheric Analysis

open access: yesThe Astrophysical Journal
A key goal of exoplanet spectroscopy is to measure atmospheric properties, such as abundances of chemical species, in order to connect them to our understanding of atmospheric physics and planet formation. In this new era of high-quality JWST data, it is
Matthew C. Nixon   +3 more
doaj   +1 more source

An Introduction to the 'Special Volume Spectroscopy and Chemometrics in R' [PDF]

open access: yes
This special volume collates ten issues under the rubric "Spectroscopy and Chemometrics in R". In so doing, it provides an overview of the breadth, depth and state of the art of R-based software projects for spectroscopy and chemometrics applications ...
Ivo H. M. van Stokkum   +1 more
core   +1 more source

Development and Application of a Situated Apprenticeship Approach to Professional Development of Astronomy Instructors [PDF]

open access: yes, 2008
Professional development for astronomy instructors largely focuses on enhancing their understanding of the limitations of professor-centered lectures while also increasing awareness and better implementation of learning strategies that promote a learner ...
Brissenden, Gina, Prather, Edward E.
core  

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