Results 21 to 30 of about 164,733 (149)

Recognising and quantifying the evolution of skeletal paedomorphosis in Plesiosauria [PDF]

open access: yesFossil Record, 2023
Plesiosaurs are one of the longest-ranging tetrapod groups in the Mesozoic and underwent a major adaptive radiation in the Late Triassic/Early Jurassic, so they are an ideal clade to study the long-term implications and deep-time evolution of specific ...
Ricardo Araújo, Adam S. Smith
doaj   +3 more sources

Efeito de diferentes misturas de adoçantes e tipos de gordura nas propriedades de sorvetes [PDF]

open access: yes, 2011
The development of processed foods requires the understanding of the phenomena that dictate the ingredient interactions normally used in food formulations, as well as the effects of the numerous operations involved in the processing of the final product.
LANNES, Suzana Caetano da Silva   +1 more
core   +3 more sources

Affect of Secondary Beam Non-Uniformity on Plasma Potential Measurements by HIBD with Split-Plate Detector

open access: yesSensors, 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

High-order coupling of shear and sonic continua in JET plasmas

open access: yesNuclear 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

A Variable Structure Control Scheme Proposal for the Tokamak à Configuration Variable

open access: yesComplexity, 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

Characterising text mining: a systematic mapping review of the Portuguese language

open access: yesIET 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

open access: yesNew 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

Essential role of endogenous calcitonin gene‐related peptide in pain‐associated plasticity in the central amygdala

open access: yesEuropean 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:

open access: yesRevista de Defesa da Concorrência
Contexto: 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

Study of an ADS Loaded with Thorium and Reprocessed Fuel

open access: yesScience and Technology of Nuclear Installations, Volume 2012, Issue 1, 2012., 2012
Accelerator‐driven systems (ADSs) are investigated for long‐lived fission product transmutation and fuel regeneration. The aim of this paper is to investigate the nuclear fuel evolution and the neutronic parameters of a lead‐cooled accelerator‐driven system used for fuel breeding. The fuel used in some fuel rods was 232ThO2 for 233U production.
Graiciany de Paula Barros   +4 more
wiley   +1 more source

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