Results 51 to 60 of about 260,301 (310)

Innovative practices in astronomy science education in China – A case study of BJP's science communication activities

open access: yesOpen Astronomy
As China’s only non-core K-12 science subject, astronomy education faces resource constraints. Beijing Planetarium (BJP), home to the Chinese Astronomical Society Popularization Committee, addresses this through tiered programs.
Chong Feng   +6 more
doaj   +1 more source

Assessing the Initial Outcomes of a Blended Learning Course for Teachers Facilitating Astronomy Activities for Young Children

open access: yesEducation Sciences
Globally, astronomy education is being promoted through curricula. Research indicates that educators need support to fundamentally comprehend and gain knowledge of astronomy as well as pedagogical expertise to organize and facilitate astronomy-related ...
Maria Ampartzaki   +6 more
doaj   +1 more source

Refurbishing Voyager 1 & 2 Planetary Radio Astronomy (PRA) Data

open access: yes, 2017
Voyager/PRA (Planetary Radio Astronomy) data from digitized tapes archived at CNES have been reprocessed and recalibrated. The data cover the Jupiter and Saturn flybys of both Voyager probes.
Boucon, Danièle   +7 more
core   +2 more sources

Multipurpose Transparent Nanocomposites for Gamma Spectroscopy, Pulse Shape Discrimination, Thermal Neutron Detection, Radiation Shielding, and High Refractive Index Applications

open access: yesAdvanced Functional Materials, EarlyView.
Materials exist that are useful for gamma scintillation, radiation shielding, neutron‐gamma pulse shape discrimination (PSD), thermal neutron detection, or high refractive index applications. While certain materials have exhibited optimal performance for each of these applications, none achieve multiple functions.
Isabelle Winardi   +13 more
wiley   +1 more source

A Comprehensive Survey of Readout Strategies for SiPMs Used in Nuclear Imaging Systems

open access: yesPhotonics, 2021
Silicon photomultipliers (SiPMs) offer advantages such as lower relative cost, smaller size, and lower operating voltages compared to photomultiplier tubes.
Shahram Hatefi Hesari   +2 more
doaj   +1 more source

Probing Exotic Physics With Cosmic Neutrinos

open access: yes, 2005
Traditionally, collider experiments have been the primary tool used in searching for particle physics beyond the Standard Model. In this talk, I will discuss alternative approaches for exploring exotic physics scenarios using high energy and ultra-high ...
A. Ringwald   +9 more
core   +1 more source

The Global sphere reconstruction (GSR) - Demonstrating an independent implementation of the astrometric core solution for Gaia [PDF]

open access: yes, 2018
Context. The Gaia ESA mission will estimate the astrometric and physical data of more than one billion objects, providing the largest and most precise catalog of absolute astrometry in the history of Astronomy.
Abbas, Ummi   +8 more
core   +2 more sources

The Promise of Solid Lubricants for a Sustainable Future

open access: yesAdvanced Materials, EarlyView.
Lubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Philipp G. Grützmacher   +7 more
wiley   +1 more source

FORMAÇÃO DE PROFESSORES E SEUS SABERES DISCIPLINARES EM ASTRONOMIA ESSENCIAL NOS ANOS INICIAIS DO ENSINO FUNDAMENTAL

open access: yesEnsaio Pesquisa em Educação em Ciências, 2010
This paper presents some outcomes of a broader research on Astronomy Education in primary school teacher¿s education. From the analysis of the main astronomy subjects thought nationwide and the research outcomes, we identified a set of astronomy contents
Rodolfo Langhi, Roberto Nardi
doaj  

Spectral observations of X Persei: Connection between H-alpha and X-ray emission

open access: yes, 2019
We present spectroscopic observations of the Be/X-ray binary X Per obtained during the period 1999 - 2018. Using new and published data, we found that during "disc-rise" the expansion velocity of the circumstellar disc is 0.4 - 0.7 km/s.
Marchev, D.   +4 more
core   +1 more source

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