Results 1 to 10 of about 410 (57)

Discovering the colours of industrial heritage characterisation of paint coatings from the powerplant at the Levada de Tomar

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, João F. Fonseca, Matthias Tissot, Manuel Lemos, Maria L. Carvalho, Marta Manso   +5 more
wiley   +1 more source

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, P. Amaro, S. Pessanha, M. Guerra, J. Machado, M. L. Carvalho, J. P. Santos, P. Indelicato   +7 more
wiley   +1 more source

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, Pedro Amaro, Sofia Pessanha, Mauro Guerra, Jorge Machado, Maria Luisa Carvalho, José Paulo Santos   +6 more
wiley   +1 more source

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, Joanna Hoszowska, Jean‐Claude Dousse, Dimosthenis Sokaras, Tsu‐Chien Weng, Roberto Alonso‐Mori, Matjaz Kavčič, Mauro Guerra, Jorge Miguel Sampaio, Fernando Parente, Paul Indelicato, José Pires Marques, José Paulo Santos   +12 more
wiley   +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, Anton Yu. Dolganov, David Belo, Hugo Gamboa, Justin Keogh   +4 more
wiley   +1 more source

Seasonal and intracanopy shifts in the fates of absorbed photons in central Amazonian forests: implications for leaf fluorescence and photosynthesis

New Phytologist, Volume 248, Issue 1, Page 76-91, October 2025.
Summary Recent studies have shown a linear relationship between solar‐induced Chl fluorescence (SIF) and gross primary productivity (GPP) at large scales. However, this relationship diverges at finer leaf scales, particularly in tropical forests with complex canopy structures.
Leonardo G. Ziccardi, David Kramer, Nathan Gonçalves, Bruce W. Nelson, Tyeen Taylor, Loren P. Albert, Kleber S. Campos, Neill Prohaska, Natalia Restrepo‐Coupe, Scott R. Saleska, Scott C. Stark   +10 more
wiley   +1 more source

Characterization of Stone Tool Use in Wild Groups of Critically Endangered Yellow‐Breasted Capuchin Monkeys (Sapajus xanthosternos)

American Journal of Biological Anthropology, Volume 186, Issue 2, February 2025.
First camera trap video footage for wild Sapajus xanthosternos cracking resistant nuts with stone tools. ABSTRACT Objectives A hallmark of hominin evolution is the advent and diversification of stone tool use, and biological anthropologists have a particular interest in characterizing tool use behaviors in different hominin species.
Rayssa Durães Mainette, Jessica W. Lynch, Patrícia Izar, Gustavo Canale, Waldney Pereira Martins   +4 more
wiley   +1 more source

Ultraviolet radiation protection factors of livestock shade cloths for free‐range pigs

Veterinary Dermatology, Volume 35, Issue 6, Page 641-651, December 2024.
Background – Protection from solar ultraviolet radiation (UVR) is paramount in light‐skinned pig breeds such as Yorkshire or Landrace to avoid sunburn. Objectives – Determination of the UVR exposure of a pig and the sun protection abilities of shade cloths with different shade rates.
A. W. Schmalwieser, L. Bigelbach, S. Helletzgruber, H. Danhel, J. Heydenreich   +4 more
wiley   +1 more source

Noninvasive Cardiac Radioablation for Chagas Heart Disease. [PDF]

Arq Bras Cardiol, 2023
Wiener PC, Moore KMS, Contreras C, Robinson CG, Cuculich PS.   +4 more
europepmc   +1 more source

Atrial Fibrillation Ablation: Impact of Intracardiac Echocardiography in Reducing Procedure Time and Hospitalization. [PDF]

Arq Bras Cardiol, 2023
Sant Anna RT, Lima GG, Saffi MAL, Kruse ML, Leiria TLL.   +4 more
europepmc   +1 more source