Results 21 to 30 of about 165,965 (150)
New Journal of Physics, 2022 We derive, from first principles and using the Weyl–Wigner formalism, a fully quantum kinetic model describing the dynamics in phase space of Dirac electrons in single-layer graphene.
José L Figueiredo +2 more
doaj +1 more source
A multichannel reflectometer for edge density profile measurements at the ICRF antenna in ASDEX upgrade [PDF]
, 2014 A multichannel reflectometer will be built for the new three-straps ICRF antenna of ASDEX Upgrade (AUG), to study the density behavior in front of it.
Bobkov, V +15 more
core +2 more sources
Sensors, 2022 In a Heavy Ion Beam Diagnostic (HIBD), the plasma potential is obtained by measuring the energy of the secondary ions resulting from beam-plasma collisions by an electrostatic energy analyzer with split-plate detector (SPD), which relates the secondary ...
Igor Nedzelskiy +3 more
doaj +1 more source
A Variable Structure Control Scheme Proposal for the Tokamak à Configuration Variable
Complexity, Volume 2019, Issue 1, 2019., 2019 Fusion power is the most significant prospects in the long‐term future of energy in the sense that it composes a potentially clean, cheap, and unlimited power source that would substitute the widespread traditional nonrenewable energies, reducing the geographical dependence on their sources as well as avoiding collateral environmental impacts. Although
Aitor Marco +5 more
wiley +1 more source
High-order coupling of shear and sonic continua in JET plasmas
Nuclear Fusion, 2023 A recent model coupling the shear-Alfvén and acoustic continua, which depends strongly on the equilibrium shaping and on elongation in particular, is employed to explain the properties of Alfvénic activity observed on JET plasmas below but close to the ...
Paulo Rodrigues +10 more
doaj +1 more source
Observation of confined current ribbon in JET plasmas [PDF]
, 2009 we report the identification of a localised current structure inside the JET plasma. It is a field aligned closed helical ribbon, carrying current in the same direction as the background current profile (co-current), rotating toroidally with the ion ...
A. Boboc +37 more
core +3 more sources
Characterising text mining: a systematic mapping review of the Portuguese language
IET Software, Volume 12, Issue 2, Page 49-75, April 2018., 2018 Documents written in natural language constitute a major part of the artefacts produced during the software engineering life cycle. Studies indicate that more than 80% of enterprise data is stored in some sort of unstructured form, mainly as text. Therefore, the growth of user‐generated content, especially from social media, provides a huge amount of ...
Ellen Souza +8 more
wiley +1 more source
Optimal laser focusing for positron production in laser–electron scattering
New Journal of Physics, 2021 Laser–electron beam collisions that aim to generate electron–positron pairs require laser intensities I ≳ 10 ^21 W cm ^−2 , which can be obtained by focusing a 1-PW optical laser to a spot smaller than 10 μ m.
Óscar Amaro, Marija Vranic
doaj +1 more source
European Journal of Neuroscience, Volume 46, Issue 6, Page 2149-2160, September 2017., 2017 αCGRP knockout (CGRP KO) mice were utilized to analyze synaptic transmission and pain behaviors 6 h after formalin injection. Synaptic potentiation at the parabrachio‐amygdaloid (PB‐CeC) pathway was drastically attenuated, and bilateral tactile allodynia was significantly suppressed in the CGRP KO mice compared with their wild‐type mice.
Kei Shinohara +6 more
wiley +1 more source
Avaliação da substituibilidade de demanda e oferta na aviação internacional brasileira:
Revista de Defesa da ConcorrênciaContexto: a definição do mercado relevante no setor de aviação internacional varia entre as autoridades antitruste, com algumas focando nas rotas de origem-destino (O&D) e outras incorporando critérios mais amplos ou mais restritos.
Gabriel Oliveira de Alarcão +2 more
doaj +1 more source