Výsledky vyhledávání - "Marcelo Goncalves Hönnicke"

Akademický článek

Drag coefficient of vertically moving popcorns

Autor: Eduardo do Carmo, Marcelo Goncalves Hönnicke

Publikováno v: Revista Brasileira de Ensino de Física, Vol 46 (2024)

To take the students attention in physics lectures is always a challenge. The projectile motion is not an exception. Then, study of popcorn motion can be a way to introduce and motivate the students in this subject. In this work, the popcorn flight,

Externí odkaz: https://doaj.org/article/a00da9c7dc9d47ada388baf6c309d4e5

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Akademický článek

Fractal dimension analysis with popcorn grains and popped popcorn grains

Autor: Eduardo do Carmo, Marcelo Goncalves Hönnicke

Publikováno v: Revista Brasileira de Ensino de Física, Vol 43 (2021)

In this manuscript, a very simple experiment was mounted to explore the fractal dimension of a popcorn grain before (popcorn grains) and after (popcorn itself) the popping process.

Externí odkaz: https://doaj.org/article/b344c37068794ad1b3fab8d5deb55396

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Watching the bonding between steel rebar and concrete with in situ X-ray imaging

Autor: Joao Bernardino Lopes, Rudney Bostel, Ana Carolina Parapinski Dos Santos, Fabio Luiz Willrich, Marcelo Goncalves Hönnicke

Publikováno v: Magazine of Concrete Research. 72:768-777

Pull-out tests combined with an in situ radiographic movie are presented in order to investigate bond properties between steel rebar and concrete during tests on concrete reinforcement samples. Rebar relative displacement and other theoretically anti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::36634b60adff256214835e98269b8518
https://doi.org/10.1680/jmacr.18.00220

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Fractal dimension analysis with popcorn grains and popped popcorn grains

Autor: Marcelo Goncalves Hönnicke, Eduardo do Carmo

Publikováno v: Revista Brasileira de Ensino de Física, Vol 43 (2021)
Revista Brasileira de Ensino de Física v.43 2021
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Revista Brasileira de Ensino de Física, Volume: 43, Article number: e20210115, Published: 03 SEP 2021

In this manuscript, a very simple experiment was mounted to explore the fractal dimension of a popcorn grain before (popcorn grains) and after (popcorn itself) the popping process.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7308f0430029f3ff4467e8b7d1ca0b37
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172021000100471&tlng=en

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X-ray back-diffraction: can we further increase the energy resolution by tuning the energy slightly below that of exact backscattering?

Autor: Cesar Cusatis, Elina Kasman, Flavio Cesar Vicentin, R. Conley, Edson Massayuki Kakuno, Xian-Rong Huang, Yong Q. Cai, Juan Zhou, Marcelo Goncalves Hönnicke, João Basso Marques, Nathalie Bouet

Publikováno v: Journal of Applied Crystallography. 52:1321-1328

X-ray beams at energies tuned slightly below that of exact backscattering (extreme conditions, where X-ray back-diffraction is almost extinguished – called residual XBD) are better focused if the experiment is carried out at lower energies in order

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86d717e5e1d54bb114e9aedc5b4c1a25
https://doi.org/10.1107/s1600576719012925

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Correct interpretation of diffraction properties of quartz crystals for X-ray optics applications

Autor: Lahsen Assoufid, Thomas Gog, Jungho Kim, Xian-Rong Huang, Elina Kasman, Ayman Said, Diego Casa, Michael Wieczorek, Marcelo Goncalves Hönnicke

Publikováno v: Journal of Applied Crystallography. 51:140-147

Quartz has hundreds of strong Bragg reflections that may offer a great number of choices for making fixed-angle X-ray analyzers and polarizers at virtually any hard X-ray energies with selectable resolution. However, quartz crystals, unlike silicon a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1b8f28873eac2a8a6f83148361bc863
https://doi.org/10.1107/s1600576717018155

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Conical slit and conventional X-ray sources: Challenging steps for calcium spots detection

Autor: Cesar Cusatis, Jeffrey W. Keister, M. Fioreze, Marcelo Goncalves Hönnicke

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 867:171-181

An easy and simple to build conical slit (CS) was designed and tested, in a sample model approach, in order to check its possible use to detect Calcium Oxalate (CO) breast microcalcifications (MC) using conventional X-ray sources. A single-cone conic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::91eb7b67823b5b8a0a8ffe13bd9a7dd1
https://doi.org/10.1016/j.nima.2017.06.026

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A simple and low cost USB webcam-driven optical tomography system suitable for teaching x-ray computed tomography

Autor: Edson Massayuki Kakuno, Isabella Grinberg Francelino, Marcelo Goncalves Hönnicke, Cristhian Ariel Vega Mernes

Publikováno v: European Journal of Physics. 42:045301

A simple and cheap optical analog computed tomography (CT) system, useful for teaching x-ray CT for physics, medical physics and engineering physics students without applying ionizing radiation is presented. White spectrum of a light emitting diode (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b320996c1a3ce56aa4277fbc3eb14fe9
https://doi.org/10.1088/1361-6404/abf021

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Construction of a quartz spherical analyzer: application to high-resolution analysis of the NiKα emission spectrum

Autor: Cesar Cusatis, S.A. Ceppi, Marcelo Goncalves Hönnicke, Xian-Rong Huang, Yong Q. Cai, L.M. Bianco, G. Stutz

Publikováno v: Journal of Applied Crystallography. 49:1443-1453

The construction and characterization of a focusing X-ray spherical analyzer based on α-quartz 4{\bar 4}04 are presented. The performance of the analyzer was demonstrated by applying it to a high-resolution X-ray spectroscopy study of theKα1,2emiss

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e832951548c727537fa86f8a17f0122f
https://doi.org/10.1107/s1600576716010633

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Intrinsic spatial resolution limit of the analyzer-based X-ray phase contrast imaging technique

Autor: Sérgio L. Morelhão, Marcelo Goncalves Hönnicke

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Dynamical diffraction effects always play a role when working with perfect single crystals. The penetration of X-rays respect to the surface normal during diffraction (extinction depth, $1/\sigma_e$) in perfect single crystals does not have a constan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0328edb2fd2bd83c4b2797d27e5ba7d1
https://doi.org/10.1016/j.radphyschem.2019.04.023

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