2,387 research outputs found
Anelaphus robi Hrabovsky 1987
No full text7. Anelaphus robi Hrabovsky, 1987: 135, fig. 1 (Figure 12) Holotype, male Type locality. Brazil, Amazonas: AM 0 10, km 246Published as part of Monné, Miguel A., Almeida, Lucia M., Oliveira, Marcio L., Viana, Jéssica Herzog & Monné, Marcela L., 2017, Checklist of Cerambycidae (Coleoptera) primary types of the Coleção Entomológica Pe. Jesus Santiago Moure, Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil, Instituto Nacional de Pesquisas da Amazônia, Amazonas, Manaus, Brazil, and of the Museu Paraense, pp. 341-365 in Zootaxa 4221 (3) on page 349, DOI: 10.5281/zenodo.25029
Detection of ultra-high energy cosmic ray showers with a single-pixel fluorescence telescope
No full textAbstract not available.T. Fujii, M. Malacari, M. Bertaina, M. Casolino, B. Dawson, P. Horvath, M. Hrabovsky, J. Jiang, D. Mandat, A. Matalon, J.N. Matthews, P. Motloch, M. Palatka, M. Pech, P. Privitera, P. Schovanek, Y. Takizawa, S.B.Thomas, P. Travnicek, K. Yamaza
Realistic Simulation of the Ignition Procedure Based on the Use of a Graphite Rod for Inductively-Coupled RF Plasma Torches
No full textThe prototype opto-mechanical system for the Fluorescence detector Array of Single-pixel Telescopes
No full textPublished: July 4, 2017The Fluorescence detector Array of Single-pixel Telescopes is a proposed low-cost, large-area, next-generation experiment for the detection of ultrahigh-energy cosmic rays via the atmospheric fluorescence technique. The proposed design involves the deployment of several hundred large field-of-view fluorescence telescopes on a regular grid of several thousand square kilometers in ground area. This paper describes the optical design of the prototype telescope, as well as its mechanical support structure.D. Mandat, M. Palatka, M. Pech, P. Schovanek, P. Travnicek, L. Nozka, M. Hrabovsky, P. Horvath, T. Fujii, P. Privitera, M. Malacari, J. Farmer, A. Galimova, A. Matalon, M. Merolle, X. Ni, J.A. Bellido, J.N. Matthews and S.B. Thoma
Індивідуально-авторські номінації осіб у поетичному словнику ХІХ століття. (Individual author's nomination of persons in the poetic vocabulary of the nineteenth century)
No full textУ статті здійснено аналіз авторських лексичних новотворів у поезії Т. Шевченка, П. Грабовського та Ю. Федьковича за частотністю та семантикою,проведен частиномовний розподіл новотворів письменників, визначено найбільш репрезентативні тематичні групи АЛН.
(The article is devoted to analysis of author lexical new-formation by T. Shevchenko, P. Hrabovsky and Yu. Fedkovych according to frequency and semantics, new coined words’ distribution under their belonging to different parts of speech, defining of the most representative groups of ALN.
Tunability effects in photonic band gap structures infiltrated with liquid crystals
No full textTunability effects in photonic band gap structures infiltrated with liquid crystals (LC) were discussed. A strong degree of tunability was obtained by acting on the optical anisotropy of the liquid crystal. The reflection and transmission parameters versus wavelength were also evaluated by varying the pretilt angle of the LC
First results from the full-scale prototype for the Fluorescence detector Array of Single-pixel Telescopes
No full textThe Fluorescence detector Array of Single-pixel Telescopes (FAST) is a design concept for the next generation of ultrahigh-energy cosmic ray (UHECR) observatories, addressing the require- ments for a large-area, low-cost detector suitable for measuring the properties of the highest en- ergy cosmic rays. In the FAST design, a large field of view is covered by a few pixels at the focal plane of a mirror or Fresnel lens. Motivated by the successful detection of UHECRs using a prototype comprised of a single 200 mm photomultiplier-tube and a 1 m2 Fresnel lens system [Astropart.Phys. 74 (2016) 64-72], we have developed a new full-scale prototype consisting of four 200 mm photomultiplier-tubes at the focus of a segmented mirror of 1.6 m in diameter. In October 2016 we installed the full-scale prototype at the Telescope Array site in central Utah, USA, and began steady data taking. We report on first results of the full-scale FAST prototype, including measurements of artificial light sources, distant ultraviolet lasers, and UHECRs.Toshihiro Fujii, Max Malacari, Justin Albury, Jose A. Bellido, John Farmer, Aygul Galimova, Pavel Horvath, Miroslav Hrabovsky, Dusan Mandat, Ariel Matalon, John N. Matthews, Maria Merolle, Xiaochen Ni, Libor Nozka, Miroslav Palatka, Miroslav Pech, Paolo Privitera, Petr Schovanek, Stan B. Thomas, Petr Travnicek (FAST Collaboration
Divalent impurity ions in potassium tantalate studied by EPR
No full textEPR results of potassium tantalate single crystals eloped by Co2+ ions as well as new results of our continuous studies of KTaO3. Cu single crystal have been submitted. Divalent impurity ions substitute for Ta5+ in the octahedron position in the KTO3 crystal and oxygen vacancies are required to compensate the extra charge of Ta5+. The Cu2+ ions associated with oxygen vacancies form only axial centres (included exchange coupled pair centre), the symmetry axes being along cubic directions. New axial centre of Co2+ in the crystal of KTaO3: Co have been studied
Advancements in polyol synthesis: expanding chemical horizons and Néel temperature tuning of CoO nanoparticles
No full textThermal treatment and light illumination effects in EPR spectra of KtaO3:Cu
No full textIn order to understand the manner of incorporation of oxygen vacancies into perovskite structure oxides, KTaO3 crystals containing Cu2+ impurity ions were investigated following thermal treatments in atmosphere of H-2, air, and vacuum. The results of thermal treatments were controlled by EPR. The influence of light illumination on copper centres in these crystals was studied also. The thermal treatment and light illumination effects in EPR spectra of Cu impurity centres are studied for the incipient perovskite-like ferroelectric KTaO3 single crystals. It was found that thermal treatment at similar to 950 degrees C in hydrogen atmosphere and in vacuum strongly depresses EPR signal of both types of Cu2+(1) and Cu2+(2) axial centres substituting Ta5+ in the B-sublattice positions. Subsequent high-temperature treatment in air restores EPR signals of Cu2+ centres, but changes the ratio between Cu2+(1) and Cu2+(2) centres concentration. These effects, together with UV light illumination effects observed for T Cu+ thermal and photo-induced transformations of the Cu impurity centres
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