Results 61 to 70 of about 800,105 (334)

The introductory astronomy course at the University of Cape Town: probing student perspectives

, 2014
We report on research carried out to improve teaching and student engagement in the introductory astronomy course at the University of Cape Town. This course is taken by a diverse range of students, including many from educationally disadvantaged ...
Allie, Saalih, Blyth, Sarah-Louise, Rajpaul, Vinesh   +2 more
core   +2 more sources

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

Advanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto, Sergey Dayneko, Antoine Pavesic Junior, Nicholas Sandor, Alexander Hart, Yuki Haruta, Magdalena Bazalova‐Carter, Marcos J. L. Santos, Makhsud I. Saidaminov   +8 more
wiley   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

A Sky Full of Stars, Constellations, Satellites and More! Legal Issues for a ‘Darkʼ Sky

Oslo Law Review
An ever-increasing number of actors, including private entities, are conducting space activities that involve the launch of spacecraft into orbit. The ‘miniaturisationʼ of technology has meant that this now includes the launch of large constellations of ...
Steven Freeland, Anne-Sophie Martin
doaj   +1 more source

Development in Astronomy and Space Science in Africa

, 2018
The development of astronomy and space science in Africa has grown significantly over the past few years. These advancements make the United Nations Sustainable Development Goals more achievable, and open up the possibility of new beneficial ...
Backes, Michael, Baki, Paul, Baratoux, David, Benkhaldoun, Zouhair, Bode, Michael, Charles, Phil, Govender, Kevin, Jurua, Edward, Klutse, Nana A. Browne, Mamo, Alemiye, Manxoyi, Sivuyile, McBride, Vanessa, Mimouni, Jamal, Nemaungani, Takalani, Nkundabakura, Pheneas, Okere, Bonaventure, Pović, Mirjana, Saad, Somaya, Simpemba, Prospery C., Tessema, Solomon Belay, van Groningen, Ernst, Walwa, Tefera, Yilma, Abdissa   +22 more
core   +1 more source

Formation of 2D Electron Gas at a Non‐Polar Perovskite Oxide Interface: SrHfO3/BaSnO3

Advanced Functional Materials, EarlyView.
Through experiments and Poisson‐Schrödinger simulations, 2D electron gas formed at the non‐polar SrHfO3/BaSnO3 interface is observed. A large conduction band offset enables modulation doping by the intrinsic deep donors in SrHfO3, resulting in carrier confinement in BaSnO3 without relying on interfacial polarization or termination‐layer engineering ...
Jongkyoung Ko, Oliver Bierwagen, Wonwoo Suh, Jeewon B. Choi, Celesta S. Chang, Kookrin Char   +5 more
wiley   +1 more source

Regards sur la nature : place de l’observation dans les textes astronomiques latins

Pallas, 2013
In antiquity, astronomical knowledge came essentially from philosophy, mathematics and logic. One can then question the role given to the observation of phenomena. To answer this question, we chose to analyze some of the demonstrations presented in Latin
Émilie-Jade Poliquin
doaj   +1 more source

The Unified Astronomy Thesaurus: Semantic Metadata for Astronomy and Astrophysics

, 2018
Several different controlled vocabularies have been developed and used by the astronomical community, each designed to serve a specific need and a specific group.
Accomazzi, Alberto, Frey, Katie
core   +1 more source

Chemo‐Mechanical Coupling in Hydrogels: Dynamics in the Diffusion‐Limited Regime

Advanced Functional Materials, EarlyView.
A time‐dependent continuum model is developed to capture the transient swelling dynamics of chemo‐mechanical hydrogels. By coupling chemical reactions, solvent transport, and polymer deformation, volume phase transitions, reaction kinetics, and transient mechanical instabilities are analyzed.
Yao Xiong, Aaveg Aggarwal, Monica Olvera de la Cruz   +2 more
wiley   +1 more source

Ferroelectricity in Single‐Crystalline BaTiO3 Nanodisks on Silicon

Advanced Functional Materials, EarlyView.
Ferroelectricity is studied in 20 nm thick single crystalline BaTiO3 nanodisks when scaling their diameter from ≈ 400 down to 100 nm. For 100 nm diameter, the vertical polarization component adopts three distinct patterns, and the lateral one shows a rotational invariance in‐plane, suggesting a combination of center‐type and flux‐closure domains.
Ibukun Olaniyan, Jürgen Albert, Beatriz Canabarro, Haidong Lu, Sven Wiesner, Nikolay Cherkashin, Alexei Gruverman, Sylvie Schamm‐Chardon, Dong‐Jik Kim, Catherine Dubourdieu   +9 more
wiley   +1 more source