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Mostrando ítems 1761-1770 de 3757
Conformational Landscape, Photochemistry, and Infrared Spectra of Sulfanilamide
(American Chemical Society, 2013-01)
A combined matrix isolation FTIR and theoretical DFT(B3LYP)/6-311++G(3df,3pd) study of sulfanilamide (SA) was performed. The full conformational search on the potential energy surface of the compound allowed the identification ...
Multimission observations of the old nova GK Per during the 2015 outburst
(Oxford University Press, 2017-07)
GK Per, a classical nova of 1901, is thought to undergo variable mass accretion on to a magnetized white dwarf (WD) in an intermediate polar system (IP). We organized a multi-mission observational campaign in the X-ray and ...
Enhanced optical properties and (Zn, Mg) interdiffusion in vapour transport grown ZnO/MgO core/shell nanowires
(Iop Publishing, 2013-12)
ZnO/MgO (core/shell) nanowires (NWs) grown by a two-step vapour transport method under different MgO shell growth conditions are examined by x-ray diffraction, photoluminescence (PL) excitation and temperature (10–300 K) ...
Photoexcitation, Photoionization, and Photofragmentantion of CF3CF2CF2C(O)Cl Using Synchrotron Radiation between 13 and 720 eV
(American Chemical Society, 2015-03)
The main inner shell ionization edges of gaseous CF3CF2CF2C(O)Cl, including Cl 2p, C 1s, O 1s, and F 1s, have been measured in Total Ion Yield (TIY) mode by using tunable synchrotron radiation, and several resonance ...
Electronic properties of Cantor random box distribution of impurities in graphene
(Academic Press Ltd - Elsevier Science Ltd, 2016-01)
The aim of this work is to study the electronic properties of graphene under random impurities which are distributed in the energy line following the Cantor set box distribution. This implies that for each iteration k, the ...
Fractional quantum Hall effect in a dilute magnetic semiconductor
(American Physical Society, 2014-09)
We report the observation of the fractional quantum Hall effect in the lowest Landau level of a two-dimensional electron system (2DES), residing in the diluted magnetic semiconductor
Cd1−xMnxTe. The presence of magnetic ...
Investigação do emprego da bobina de rogowski na medição de corrente de neutro de geradores síncronos
(Florianópolis, SC, 2020-01-23)
Devido à importância da energia elétrica, uma interrupção no seu fornecimento pode causar
grandes incômodos para a sociedade. Como os geradores síncronos geram quase toda a
energia elétrica consumida no Brasil atualmente, ...
Estudo teórico dos radicais monocloreto de arsênio (AsCl0,+) e espectro fotoeletrônico
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de Química e BiologiaQuímicaUTFPR, 2015-07-08)
There has been a rising interest on diatomic species in relation to their bonding schemes, especially those that involve elements of group 15 and halogens. They are isovalent to O2 molecule i.e. they have similar valence ...
Avaliação do uso de filmes radiocrômicos ao lado de câmara de ionização e TLDs na mensuração de doses periféricas em radioterapia
(Universidade Tecnológica Federal do ParanáCuritibaBrasilTecnologia em RadiologiaUTFPR, 2016-06-24)
The growing number of survivors of cancer has created the need to investigate the cause of the sequelae of treatment. Measurements of peripheral radiation to the radiotherapy increment the knowledge of the subject and ...
Caracterização de membrana nafion usando espectroscopia fotoacústica: monitoramento da hidratação
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilPrograma de Pós-Graduação em Engenharia MecânicaUTFPR, 2016-03-22)
Nafion membranes are films developed by DuPont, a perfluorosulfonic acid/polytetrafluoroethylene copolymer. These membranes are hydrophilic and preferably water is absorbed into the clusters due to the hydrophobic character ...