Autor: Hryniewicz, Grzegorz - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Comparative corrosion studies of 2205 duplex steel after electropolishing and passivation in Ringer’s solution
Autorzy:: Rokosz, Krzysztof
Hryniewicz, Tadeusz
Solecki, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/1178066.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: electropolishing
passivation
pitting corrosion
potentiodynamic corrosion measurements
stainless steel duplex 2205
Opis:: In present work, the results of corrosion analysis of pitting and general corrosion of austenitic duplex 2205 (EN 1.4462) stainless steel in Ringer's solution, are presented. The corrosion rate was studied using potentiodynamic polarisation method by means of the ATLAS 98 potentiostat with POL 98 software. For these measurements the platinum EPT-101 and calomel reference EK-101P electrodes were used. For each run, the electrolytic cell made of glass was used, containing up to 500 ml of the electrolyte. The specimens used for the studies were obtained from a cold-rolled sheet of steel in three forms: as received (without any pretreatment), after abrasive polishing, and after electrochemical polishing. Some of them were passivated for 15 and 30 minutes, respectively, in 20% HNO3 by volume. The study results show clearly that the samples of duplex 2205 stainless steels after electropolishing and passivation for 15 minutes in 20% HNO3 by volume revealed the highest corrosion resistance.
Źródło:: World Scientific News; 2018, 95; 167-181
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Dziecięcy mutyzm wybiórczy – studium przypadku
Selective mutism in children – case study
Autorzy:: Kozłowska, Małgorzata
Famuła-Jurczak, Anita
Hryniewicz, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/473023.pdf
Data publikacji:: 2018-06-01
Wydawca:: Collegium Witelona Uczelnia Państwowa
Tematy:: rozwój,
wychowanie,
komunikacja,
mutyzm,
rodzina
development,
education,
communication,
mute, family
Opis:: Komunikacja jest jednym z najważniejszych czynników warunkujących funkcjonowanie człowieka w społeczeństwie. Celem artykułu jest zaprezentowanie mutyzmu jako jednej z form zaburzeń komunikacyjnych. W tekście przybliżona zostanie problematyka mutyzmu, podane będą jego rodzaje. Na tle założeń teoretycznych dokonana będzie analiza przypadku chłopca, u którego zdiagnozowano mutyzm. Indywidualny przypadek badanego dziecka będzie stanowił podstawę do dyskusji na temat czynników warunkujących wystąpienie mutyzmu
Communication is one of the most important determinants of human functioning in the society. The purpose of this article is to present mutism as one form of communication disorder. The text will approximate the problem of mutism and its kinds. Against the background of theoretical assumptions, a case of a boy diagnosed with mutism will be analyzed. The individual case of the examined child will constitute the basis for a discussion of the factors determining the occurrence of this particular disorder
Źródło:: Zeszyty Naukowe Państwowej Wyższej Szkoły Zawodowej im. Witelona w Legnicy; 2018, 2, 27; 203-214
1896-8333
Pojawia się w:: Zeszyty Naukowe Państwowej Wyższej Szkoły Zawodowej im. Witelona w Legnicy
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Soil conditions under great cormorant and grey heron colonies in a wetland : Effect on soil nematode abundance and trophic structure
Autorzy:: Kozacki, Dawid
Ilieva-Makulec, Krassimira
Hryniewicz, Marek
Makulec, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/27312635.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: bird excreta
great cormorant
grey heron
nematodes
nitrogen
Opis:: This study aimed to investigate how great cormorants and grey herons affect the density and trophic diversity of soil nematodes under breeding colonies located in Stawy Raszyńskie Nature Reserve (central Poland). Soil samples from the colonies were compared to control samples from adjacent areas unaffected by birds. Samples were taken at each site (two colonies and two relevant control sites) to a depth of 20 cm, and the soil cores were split into topsoil (0-10 cm) and subsoil (10-20 cm). A modified Baermann method was used to extract nematodes from the soil. The soil under nests supported more abundant nematode communities, but with a lower trophic diversity compared to the control sites. The cormorants had a greater impact on nematodes than the herons. We found that the external nitrogen input, the higher organic matter content and abundance of ammonifying bacteria, as well as the lower soil pH under the colonies than in the control sites, affected the nematode trophic groups in different ways. Compared to the control sites, there were significantly more bacterivorous nematodes but fewer herbivorous nematodes under the colonies. No predatory nematodes were found under the bird colonies and, in the case of the cormorant colony, no omnivorous nematodes. No significant differences in the abundance of fungivorous nematodes between the impact and the control plots were noticed. The results indicate that allochthonous input under bird colonies promotes microbial activity and the most opportunistic trophic group of nematodes, which may at least temporarily enhance decomposition and mineralisation processes and consequently affect nutrient cycling in the wetland soil.
Źródło:: Journal of Water and Land Development; 2023, 58; 79--88
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: The studies of corrosion resistance of AISI 316Ti SS in Ringer’s solution after electropolishing and passivation in nitric acid
Autorzy:: Rokosz, Krzysztof
Hryniewicz, Tadeusz
Solecki, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/1177846.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: AISI 316Ti/EN 1.4571
austenitic stainless steel
electropolishing
passivation
pitting corrosion
potentiodynamic corrosion measurements
Opis:: In present work, the continuation of general and pitting corrosion analysis of austenitic AISI 316Ti (EN 1.4571) stainless steel in Ringer's solution, is presented. The corrosion was studied by using the ATLAS 98 potentiostat with platinum EPT-101 and calomel reference EK-101P electrodes. The three types of specimens, i.e. as received (without any pretreatment), after abrasive mechanical polishing (MP), and after electrochemical polishing (EP), were used. The best pitting corrosion resistance was recorded for electropolished and passivated (in 20% vol. HNO3 for 30 minutes) surface, i.e. the pitting potential was equal to 761 mVSCE (855.4 ± 58.5 mVSCE), while the worst one was recorded for mechanically ground samples and the pitting corrosion potential was equal to 270 mVSCE (378.8 ± 60.3 mVSCE).
Źródło:: World Scientific News; 2018, 98; 46-60
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Hryniewicz, Grzegorz" wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język