Autor: Górnicka, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Polyester and Polyesterimide Compounds with Nanofillers for Impregnating of Electrical Motors
Autorzy:: Gornicka, B.
Prociow, E.
Powiązania:: https://bibliotekanauki.pl/articles/1808069.pdf
Data publikacji:: 2009-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.07.Pr
82.35.Np
Opis:: Polyester and polyesterimide compounds for impregnating of electrical motors were modified by incorporating of three kinds of nanofillers: zinc oxide, fumed nanosilica and titanium dioxide so as to improve their properties. Nanosized particles were added at 1 wt.% of loading and homogeneously dispersed in polyester and polyesterimide matrix. The results on mechanical, electrical and barrier properties of standard and nanofilled compounds were compared. Thermogravimetric/differential thermal analysis showed that thermal stability of nanofilled compounds was significantly higher. Also the electrical and bonding strength of nanofilled impregnating compounds increased and at the same time water absorption decreased. The highest improvement of properties owing to nanofillers was obtained in the case of nanosilica.
Źródło:: Acta Physica Polonica A; 2009, 115, 4; 842-845
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: DLC3 expression in hepatocellular carcinoma
Autorzy:: Wolosz, D.
Szparecki, G.
Wolinska, E.
Gornicka, B.
Powiązania:: https://bibliotekanauki.pl/articles/3292.pdf
Data publikacji:: 2015
Wydawca:: Instytut Medycyny Wsi
Tematy:: DLC3 protein
protein expression
hepatocellular carcinoma
Rho protein
human disease
liver disease
Opis:: Introduction and objective. Deleted in Liver Cancer (DLC) proteins belong to the family of RhoGAPs and thus are believed to operate as negative regulators of the Rho family of small GTPases. Rho proteins are considered to be significant links between numerous cellular pathways. So far, DLC1 – the first identified member from Deleted in Liver Cancer family – has been established as a tumour suppressor in hepatocellular carcinoma. As shown by many studies, DLC1 expression is reduced by gene loss or epigenetic silencing in this type of cancer. The expression and function of its close family relative DLC3 is less known. The presented study determined the expression and cellular localization of DLC3 protein in hepatocellular carcinoma tissue. Materials and methods. The protein level in two types of hepatocellular carcinoma: typical and fibrolamellar, were assessed by the immunohistochemical approach. Results. DLC3 immunoreactivity was found to be present in the cytoplasm of normal hepatocytes. In hepatocellular carcinoma sections, DLC3 was detected primarily in the cytoplasm of cancer cells, although in a small percentage of cancer cells cell nuclei were also positively stained. Morphometric analysis followed by statistical evaluation showed that the DLC3 immunoreactivity in the tumour sections was comparable to the one observed in non-cancerous liver specimens. Conclusions. The results obtained indicate that DLC3 protein, contrary to DLC1, is commonly expressed in hepatocellular carcinoma. It appears that members of the DLC family, although structurally highly related, may function differently during HCC development.
Źródło:: Journal of Pre-Clinical and Clinical Research; 2015, 09, 2
1898-2395
Pojawia się w:: Journal of Pre-Clinical and Clinical Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Antistatic Properties of Nanofilled Coatings
Autorzy:: Gornicka, B.
Mazur, M.
Sieradzka, K.
Prociow, E.
Lapinski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1538175.pdf
Data publikacji:: 2010-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.07.Pr
82.35.Np
Opis:: The results of antistatic and electrical properties investigations of nanofilled coatings have been presented. Antistatic performance of materials is essential not only due to safety and preventing of dust and dirt attraction but also effects on an electrical field distribution in the high voltage insulating systems. The polymer coating added with silver and silica nanoparticles were examined by charge decay measurements after corona charging. The charge decay times have varied appreciably between the nanofilled coatings while the volume and surface resistivity of the all tested coatings did not demonstrate meaningful differences. The polyester coating dissipated fairly better than polyesterimide because of its structure and permittivity. It was found that the ability of surface to drain charge away is the better for coatings with of silver nanoparticles whereas the coatings modified with nanosilica shows the poor antistatic properties; the times of charge decay were four order longer then that of unmodified coatings. Barrier properties of nanosilica may be adverse for charge decay.
Źródło:: Acta Physica Polonica A; 2010, 117, 5; 869-872
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Nowy rodzaj lakieru domieszkowany nanocząstkami SiO2
New kind of varnish filled with SiO2 nanoparticles
Autorzy:: Nguyen, M.Q.
Malec, D.
Mary, D.
Werynski, P.
Gornicka, B.
Therese, L.
Guillot, Ph.
Powiązania:: https://bibliotekanauki.pl/articles/1373461.pdf
Data publikacji:: 2009
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:: lakiery
krzemionka
nanonapełniacze
właściwości dielektryczne
Opis:: The dielectric and mechanical properties of standard (PEI), nanoscale-filled and microscale-filled varnishes are detailed and analyzed in this communication. Two kind of silica (10 nm and 400 nm) have been tested as a filler. A particular attention has been paid to Partial Discharge Inception Voltage, lifetime under pulse voltage and bonding strength which are crucial for varnish to be used in rotating machines fed by inverters.
Źródło:: Maszyny Elektryczne: zeszyty problemowe; 2009, 84; 211-216
0239-3646
2084-5618
Pojawia się w:: Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:: Biblioteka Nauki

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