Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Jacek Michalik"'
Publikováno v:
Wiedza Obronna, Vol 283, Iss 2 (2023)
Nowadays, companies are increasingly using a risk-based approach to achieving their business goals. A key element of this approach is the identification of threats that may materialize and affect the functioning of the company. Following the example
Externí odkaz:
https://doaj.org/article/f74f5bdae8454d2883d67f4793349e27
Autor:
Jacek Michalik, Grzegorz P. Guzik
Publikováno v:
Nukleonika. 66:91-97
In this paper, we present the results of inter-comparison studies on identification of irradiated food carried out by the leading European laboratories from 1991 to 2018. In 1990s, the Federal Institute for Health Protection of Consumers and Veterina
Publikováno v:
Nukleonika, Vol 64, Iss 4, Pp 139-143 (2019)
The stable EPR signal produced by ionizing radiation in crystalline D-mannose (C6H12O6) and separated from cranberries (Vaccinium oxycoccus) was studied. The isothermal heating of irradiated sample at 95°C for 10 minutes (melting point of D-mannose
In 1962, it was been observed that in-bone grafts sterilized by high-energy electron beams, the EPR signal appears and remains stable at room temperature. It also has been proven by the same authors that the signal is still seen after 12 weeks of sto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59db4723cbbc1a3ed0683ad55f18f0fc
https://doi.org/10.1016/b978-0-12-814024-6.00006-6
https://doi.org/10.1016/b978-0-12-814024-6.00006-6
Publikováno v:
Nukleonika, Vol 60, Iss 3, Pp 627-631 (2015)
The dominating carbohydrates in fruits are monosaccharides like fructose, glucose, sorbose and mannose. In dehydrated fruits, concentration of monosaccharides is higher than in fresh fruits resulting in the formation of sugar crystallites. In most of
Publikováno v:
Microporous and Mesoporous Materials. 195:112-123
Free radicals are important transient species in many chemical reactions, especially in catalysis, photochemistry and radiation chemistry. However, the identification of free radicals is difficult because of their high reactivity. For catalytic syste
Publikováno v:
Journal of Molecular Structure. 1022:61-67
A set of 10 nanocrystalline carbonate-containing calcium hydroxyapatites (HAs) with various mean crystal sizes below 100 nm was prepared by dry milling in air of commercial HA (platelets ca. 100 nm in size). The obtained crystallites had prolate plat
Publikováno v:
The Journal of Physical Chemistry C. 116:16098-16104
The radical reactive intermediates play an important role in many catalytic and radiation reactions. To study their geometry and electronic structure, time-resolved methods or stabilization at low temperature in inert matrixes is requisite. In this A
Autor:
Jarosław Sadło, Małgorzata Lewandowska-Szumieł, Lukasz Pajchel, Grazyna Strzelczak, Marcin Sterniczuk, Jacek Michalik
Publikováno v:
Journal of Materials Science: Materials in Medicine. 23:2061-2068
Gamma irradiated synthetic hydroxyapatite, bone substituting materials NanoBone(®) and HA Biocer were examined using EPR spectroscopy and compared with powdered human compact bone. In every case, radiation-induced carbon centered radicals were recor
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 265:339-346
Application of radiation techniques for nanotechnology has been known for years. X-ray, electron beam and ion beam lithography are good examples of applications. By using electron beams, ion beams and X-rays structures as small as 10 nm can be produc