Results 11 to 20 of about 122,390 (160)
Journal of Raman Spectroscopy, Volume 52, Issue 1, Page 208-216, January 2021., 2021 The material characterisation of industrial heritage was approached by the analytical study of three energy generators coatings, from the 20th‐century powerplant at Levada de Tomar, Portugal. μRaman spectrometry, μXRF, and SEM‐EDS enabled the identification of pigments' paint coatings, revealing complex paint systems for the oldest equipment (1924) and
Isabel Tissot +5 more
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Overview and calculation of X‐ray K‐shell transition yields for comprehensive data libraries
X-Ray Spectrometry, Volume 49, Issue 3, Page 398-423, May/June 2020., 2020 The simulation of atomic relaxation relies on data libraries with tabulated partial fluorescence yield values of radiative transitions, commonly derived from the Evaluated Atomic Data Library (EADL). However, recent studies support that the data library EADL could be improved by adopting Scofield's Hartree‐Fock calculations instead of current Scofield ...
L. Martins +7 more
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Multiconfiguration Dirac–Fock calculations of Zn K‐shell radiative and nonradiative transitions
X-Ray Spectrometry, Volume 49, Issue 1, Page 192-199, January/February 2020., 2020 Zinc K‐shell radiative and radiationless transition rates are calculated using the multiconfiguration Dirac–Fock method. Correlation up to the 4p orbital is included in almost all transition rate calculations. Calculated radiative transition rates and transition probabilities are compared with Scofield's Dirac–Hartree–Slater and Dirac–Hartree–Fock ...
Luís Martins +6 more
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Cultivo de beterraba em ambientes protegido e natural na época de verão
Revista Brasileira de Engenharia Agrícola e Ambiental, 2013 Objetivou-se neste trabalho avaliar as respostas produtivas de beterraba cultivada em ambiente natural e sob túnel com malha de sombreamento durante a época de verão.
João A. Tullio +3 more
doaj +1 more source
Radiation therapy for oral melanoma in dogs: A retrospective study
Ciência Rural, 2018 : Our retrospective study evaluated the survival of 24 dogs with unresectable malignant melanoma treated with radiation therapy. Fifteen dogs were treated with radiation therapy (RT) and chemotherapy (CT), five with surgery followed by RT and CT, three ...
Simone Carvalho dos Santos Cunha +4 more
doaj +1 more source
Ciência Rural, 1998 A radiação vermelha extrema refletida pelas folhas de plantas vizinhas altera a relação vermelho(V): vermelho extremo(Ve) e esta relação atua como um sinal precoce da competição que irá ocorrer em uma comunidade. O fitocromo é capaz.
Milton Luiz de Almeida +1 more
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Diagram, valence‐to‐core, and hypersatellite Kβ X‐ray transitions in metallic chromium
X-Ray Spectrometry, Volume 48, Issue 5, Page 351-359, September/October 2019., 2019 We report on measurements of the Kβ diagram, valence‐to‐core (VtC), and hypersatellite X‐ray spectra induced in metallic Cr by photon single and double K‐shell ionization. The experiment was carried out at the Stanford Synchrotron Radiation Lightsource using the seven‐crystal Johann‐type hard X‐ray spectrometer of the beamline 6‐2.
Faisal Zeeshan +12 more
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Crescimento vegetativo e produção de óleo essencial de hortelã‑pimenta cultivada sob malhas
Pesquisa Agropecuária Brasileira, 2012 O objetivo deste trabalho foi avaliar o crescimento vegetativo e o teor, o rendimento e a composição química do óleo essencial de hortelã‑pimenta (Mentha piperita) cultivada sob diferentes malhas, no Município de Lavras, MG.
Andressa Giovannini Costa +3 more
doaj +1 more source
Floresta e Ambiente, 2023 RESUMO Foram avaliadas duas florestas naturais com ocorrência de Attalea maripa (Aubl.) Mart., sendo uma primária e outra secundária, em termos de caracterização florística, transmitância da radiação fotossinteticamente ativa e serapilheira, localizadas ...
Giovânia Carvalho Araújo +5 more
doaj +1 more source
Comparison of Machine Learning Methods for the Arterial Hypertension Diagnostics
Applied Bionics and Biomechanics, Volume 2017, Issue 1, 2017., 2017 The paper presents results of machine learning approach accuracy applied analysis of cardiac activity. The study evaluates the diagnostics possibilities of the arterial hypertension by means of the short‐term heart rate variability signals. Two groups were studied: 30 relatively healthy volunteers and 40 patients suffering from the arterial ...
Vladimir S. Kublanov +4 more
wiley +1 more source