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Tytuł:
Prediction of Selected Mechanical Properties in Austempered Ductile Iron with Different Wall Thickness by the Decision Support Systems
Autorzy:
Jaśkowiec, Krzysztof
Opaliński, Andrzej
Kustra, Piotr
Jach, D.
Wilk-Kołodziejczyk, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/27314159.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
ADI
austempered ductile iron
mechanical properties
prediction
decision support systems
decision tree
żeliwo sferoidalne
właściwości mechaniczne
prognozowanie
systemy wspomagania decyzji
Opis:
The structure of Austempered Ductile Iron (ADI) is depend of many factors at individual stages of casting production. There is a rich literature documenting research on the relationship between heat treatment and the resulting microstructure of cast alloy. A significant amount of research is conducted towards the use of IT tools for indications production parameters for thin-walled castings, allowing for the selection of selected process parameters in order to obtain the expected properties. At the same time, the selection of these parameters should make it possible to obtain as few defects as possible. The input parameters of the solver is chemical composition Determined by the previous system module. Target wall thickness and HB of the product determined by the user. The method used to implement the solver is the method of Particle Swarm Optimization (PSO). The developed IT tool was used to determine the parameters of heat treatment, which will ensure obtaining the expected value for hardness. In the first stage, the ADI cast iron heat treatment parameters proposed by the expert were used, in the next part of the experiment, the settings proposed by the system were used. Used of the proposed IT tool, it was possible to reduce the number of deficiencies by 3%. The use of the solver in the case of castings with a wall thickness of 25 mm and 41 mm allowed to indication of process parameters allowing to obtain minimum mechanical properties in accordance with the PN-EN 1564:2012 standard. The results obtained by the solver for the selected parameters were verified. The indicated parameters were used to conduct experimental research. The tests obtained as a result of the physical experiment are convergent with the data from the solver.
Źródło:
Archives of Foundry Engineering; 2023, 23, 2; 137--144
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection of Casting Materials for Working Parts of Machines for the Forestry Sector
Autorzy:
Pirowski, Zenon
Bitka, Adam
Grudzień-Rakoczy, Małgorzata
Małysza, Marcin
Pysz, Stanisław
Wieliczko, Piotr
Wilk-Kołodziejczyk, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/2106604.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mulching
forestry tools
tribological wear
abrasion-resistant cast steel
hardfacing surface
Opis:
The article was created as a result of the work TECHMATSTRATEG 1 program “Modern Material Technologies” as part of the project with the acronym INNOBIOLAS entitled “Development of innovative working elements of machines in the forestry sector and biomass processing based on high-energy surface modification technologies of the surface layer of cast elements”; agreement No. TECHMATSTRATEG1/348072/2/NCBR/2017. The article discusses the procedure for selecting casting materials that can meet the high operational requirements of working tools of mulching machines: transfer of high static and dynamic loads, resistance to tribological wear, corrosion resistance in various environments. The mulching process was briefly described, then the alloys were selected for experimental tests, model alloys were made and perform material tests were carried out in terms of functional and technological properties. The obtained results allowed to select the alloy where the test castings were made.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 2; 743--752
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In situ-formed bacterial exopolysaccharide (EPS) as a potential carrier for anchorage-dependent cell cultures
Autorzy:
Komorowski, Piotr
Kołodziejczyk, Agnieszka
Makowski, Krzysztof
Kotarba, Sylwia
Walkowiak, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/1844871.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
bacterial exopolysaccharides
dextran- -based “microcarriers”
scanning electron microscopy
atomic force microscopy
roughness parameters
three-dimensional cell culture
Opis:
The study involved the use of a bacterial strain isolated from environmental samples which produce the biopolymer in the form of pellets in the submerged culture. This material (bacterial exopolysaccharide) is produced by bacteria of the Komogateibacter xylinus which are prevalent in the environment. The aim of this study was to characterize bacterial exopolysaccharides and commercial dextran-based “microcarriers” in terms of their roughness and cell culture effects, including the morphology and viability of the human hybridoma vascular endothelial cell line EA.hy926. The pellets were characterized using scanning electron microscopy (SEM) and atomic for¬ce microscopy (AFM). The resulting structures were used for cell culture of adherent cells (anchorage¬-dependent cells). At the same time, the cultures with commercial, dextran-based “microcarriers” were carried out for comparative purposes. After com¬pletion of the cell culture (24 hours of culture), the cellulose and commercial “carriers” were analyzed using SEM and AFM. Finally, the obtained cell dens¬ities (fluorescence labelling) and their morphological characteristics (SEM) were compared. The obtained results strongly support the applicability of bacterial exopolysaccharide (EPS) in tissue engineering to build innovative 3D scaffolds for cell culture, the more so that it is technologically possible to produce EPS as spatially complex structure
Źródło:
Engineering of Biomaterials; 2021, 24, 159; 18-23
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microscopic analysis of the nanostructures impact on endothelial cells
Autorzy:
Kołodziejczyk, Agnieszka Maria
Kucińska, Magdalena
Jakubowska, Aleksandra
Siatkowska, Małgorzata
Sokołowska, Paulina
Kotarba, Sylwia
Makowski, Krzysztof
Komorowski, Piotr
Walkowiak, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/1844983.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
nanostructures
atomic force microscopy
transmission electron microscopy
scanning electron microscopy
cell morphology
Opis:
Nowadays nanostructures are more and more often designed as carriers for drug delivery, especially to improve the drug pharmacokinetics and pharmaco-dynamics. Numerous kinds of nanostructures are considered a good prospect for medical applications thanks to their small size, acceptable biocompatibility and toxicity. Due to the fact that nanotechnology is a new field of science, every nano-scale product must be thoroughly examined regarding its toxicity to the human body. This study provides new insights into effects of exposing endothelial cells to the selected nanostructures. Dendrimers of the fourth generation (PAMAMs), multi-walled carbon nanotubes (MWCNTs) and silver nanoparticles (SNPs) were used to evaluate nanostructures influence on endothelial cells in vitro. The nanostructures were evaluated via transmission electron microscopy and dynamic light scattering technique. The cells previously exposed to the nanostructures were observed and analyzed via the atomic force microscopy and scanning electron microscopy to obtain a quantitative evaluation of the cells morphology. The presence of multi-walled carbon nanotubes and silver nanoparticles on the cells surface was confirmed by the scanning electron microscopy. Our results confirm that the surface association and/or uptake of nanostructures by the cells resulting from physicochemical and biological processes, affect the cells morphology. Morphological changes can be induced by the membrane proteins interaction with nanomaterials, which trigger a sequence of intracel-lular biological processes.
Źródło:
Engineering of Biomaterials; 2020, 23, 154; 2-8
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microscopic analysis of the nanostructures impact on endothelial cells
Autorzy:
Kołodziejczyk, Agnieszka Maria
Kucińska, Magdalena
Jakubowska, Aleksandra
Siatkowska, Małgorzata
Sokołowska, Paulina
Kotarba, Sylwia
Makowski, Krzysztof
Komorowski, Piotr
Walkowiak, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/970974.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
nanostructures
atomic force microscopy
transmission electron microscopy
scanning electron microscopy
cell morphology
Opis:
Nowadays nanostructures are more and more often designed as carriers for drug delivery, especially to improve the drug pharmacokinetics and pharmaco-dynamics. Numerous kinds of nanostructures are considered a good prospect for medical applications thanks to their small size, acceptable biocompatibility and toxicity. Due to the fact that nanotechnology is a new field of science, every nano-scale product must be thoroughly examined regarding its toxicity to the human body. This study provides new insights into effects of exposing endothelial cells to the selected nanostructures. Dendrimers of the fourth generation (PAMAMs), multi-walled carbon nanotubes (MWCNTs) and silver nanoparticles (SNPs) were used to evaluate nanostructures influence on endothelial cells in vitro. The nanostructures were evaluated via transmission electron microscopy and dynamic light scattering technique. The cells previously exposed to the nanostructures were observed and analyzed via the atomic force microscopy and scanning electron microscopy to obtain a quantitative evaluation of the cells morphology. The presence of multi-walled carbon nanotubes and silver nanoparticles on the cells surface was confirmed by the scanning electron microscopy. Our results confirm that the surface association and/or uptake of nanostructures by the cells resulting from physicochemical and biological processes, affect the cells morphology. Morphological changes can be induced by the membrane proteins interaction with nanomaterials, which trigger a sequence of intracel-lular biological processes.
Źródło:
Engineering of Biomaterials; 2020, 23, 154; 2-8
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applications of cytisine extraction and detection in biological materials for clinical medicine
Autorzy:
Bartusik-Aebisher, Dorota
Aebisher, David
Courtney, Ryan
Sobczak, Andrzej
Bober, Zuzanna
Podgórski, Rafał
Kołodziejczyk, Patrycjusz
Tutka, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/895314.pdf
Data publikacji:
2019-10-30
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
smoking cessation
chromatography
Biomedicine
cytisine extraction
biopharmacy
Opis:
Tobacco use is a leading cause of preventable mortality worldwide. New cost-effective smoking cessation treatments are needed especially in some low-to-middle income countries where smoking rates are rising, and current pharmacotherapy treatments remain cost-prohibitive. Since the 1960’s, cytisine has been used as an effective nicotine substitution agent to aid in smoking cessation albeit limited to a selected few Eastern/Central Europe and Central Asian countries. Cytisine is a biologically active alkaloid of plant origin and is known to be a ligand of nicotinic acetylcholinergic receptors (nAChRs). For several decades, the properties of cytisine have been investigated and reported in the biomedical and pharmaceutical literature. Due to the beneficial impact of cytisine on smoking cessation and its costly multistep synthesis, there is a growing interest in extraction from natural sources as well as in analytical identification and quantification for clinical medicine and forensic toxicology. In this paper, we present several current analytical approaches to cytisine extraction and identification from biological samples of plant and human origin. The development of extraction techniques will allow for the widespread use of the drug in experimental and clinical pharmacology, toxicology and forensic medicine.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 5; 797-804
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
HLC Project 2017. Jagiellonian University excavations in southern Jordan
Autorzy:
Kołodziejczyk, Piotr
Nowak, Marek
Wasilewski, Michał
Witkowska, Barbara
Karmowski, Jacek
Czarnowicz, Marcin
Brzeska-Zastawna, Agnieszka
Zakrzeńska, Justyna
Radziwiłko, Katarzyna
Kościuk, Julia
Powiązania:
https://bibliotekanauki.pl/articles/1682028.pdf
Data publikacji:
2019-05-14
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
Jordan
Neolithic
Early Bronze Age
late prehistory
Levantine archaeology
protection of cultural heritage
Opis:
The HLC (Heritage–Landscape–Community) archaeological metaproject, carried out since 2016 by the Jagiellonian University in cooperation with the Department of Antiquities, Ministry of Antiquities and Tourism, Hashemite Kingdom of Jordan, targets the archaeological heritage of southern Jordan (Tafila region), focusing currently on remains of the Early Bronze Age and earlier cultures that were found in the region. The project has already identified and verified several previously undocumented or poorly documented sites. Its main objective is to establish chronological phasing of human activity in this microregion, particularly during the Early Bronze Age, and to assess the scale and nature of human presence in that period. Two sites, Faysaliyya and Munqata’a, were excavated within the frame of the project. The article presents the preliminary results of this work. An important side issue is the protection of Jordanian heritage in the Tafila region through the identification of natural and human agents that may damage or destroy it.
Źródło:
Polish Archaeology in the Mediterranean; 2018, 27(1); 379-416
1234-5415
Pojawia się w:
Polish Archaeology in the Mediterranean
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
HLC Project 2018: Jagiellonian University excavations in southern Jordan
Autorzy:
Kołodziejczyk, Piotr
Nowak, Marek
Wasilewski, Michał
Witkowska, Barbara
Karmowski, Jacek
Czarnowicz, Marcin
Zakrzeńska, Justyna
Brzeska-Zastawna, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1634197.pdf
Data publikacji:
2019-12-31
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
prehistory
Neolithic
southern Jordan
lithics
HLC Project
Opis:
A complex view of the prehistory in southern Jordan emerges from the excavations of the Jagiellonian University team, which carried out in 2018 its second season of fieldwork at the sites of Munqata’a and Faysaliyya, even as analyses of finds from the previous season were underway. Human communities living here in the Neolithic and Early Bronze Age practiced both sedentary and mobile lifestyles. The changing landscape around them, caused by natural erosion processes and periodical climate change, is also taken into consideration while interpreting the explored relics.
Źródło:
Polish Archaeology in the Mediterranean; 2019, 28(2); 251-286
1234-5415
Pojawia się w:
Polish Archaeology in the Mediterranean
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recenzja książki: Brunon Hołyst. (2016). Bezpieczeństwo gatunku ludzkiego. Warszawa: Wydawnictwo Naukowe PWN. Tom 4, ss. 742.
Book Review: Brunon Hołyst. (2016). Safety of the Humankind. Warszawa: PWN Scientific Publishing House. Volume 4, pp. 742.
Autorzy:
Sobol-Kołodziejczyk, Piotr
Zieliński, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2140787.pdf
Data publikacji:
2019-12-26
Wydawca:
Wydawnictwo Naukowe Dolnośląskiej Szkoły Wyższej
Źródło:
Rocznik Bezpieczeństwa Międzynarodowego; 2016, 10, 1; 273-274
1896-8848
2450-3436
Pojawia się w:
Rocznik Bezpieczeństwa Międzynarodowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How to translate culture? The select fragments of the Polish and English translations of the short story Der Sandmann by E.T.A Hoffmann
Autorzy:
Kołodziejczyk-Mróz, Beata
Majcher, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/559868.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Wrocławski. Oficyna Wydawnicza ATUT – Wrocławskie Wydawnictwo Oświatowe
Tematy:
German Romanticism
fantasy literature
theory of fantasy literature
Opis:
How to translate culture? The select fragments of the Polish and English translations of the short story Der Sandmann by E.T.A Hoffmann The article discusses the problems encountered by the translator when trying to convey the meaning of the source literary text into the target language. The analysed texts are fragments of the Polish and English translations of the short story Der Sandmann by E.T.A. Hoffmann, the leading representative of late German Romanticism, with the special attention paid to their correspondence with the source text. The analysed translations are the Polish one by Felicjan Faleński, made in 1867 and the English one by John Oxenford, made in 1844. For the purpose of analysing the text, the article employs Todorov’s theory of the fantastic for building an interpretation model of the Romantic short story Der Sandmann.
Źródło:
Orbis Linguarum; 2018, 52; 329-337
1426-7241
Pojawia się w:
Orbis Linguarum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metaliczne ciało obce w języku – opis przypadku
Autorzy:
Kuźmińska, Magdalena
Wężyk, Aleksandra
Kołodziejczyk, Paulina
Gotlib, Tomasz
Chęciński, Piotr
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1399962.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
ciało obce
język
metaliczne
Opis:
Każdy laryngolog na pewnym etapie swojej pracy spotyka się z koniecznością wykonania zabiegu usunięcia ciała obcego z dróg oddechowych czy pokarmowych. Niejednokrotnie może nastręczać to wielu problemów, takich jak uszkodzenia otaczających tkanek, czy trudności związanych z przemieszczaniem się, w miarę upływu czasu, ciała obcego w tkankach. Najczęściej ciało obce zlokalizowane jest w przestrzeni gardła środkowego i dolnego. Zdarzają się również w mniej typowych miejscach, w których należy wykazać się większą czujnością ze względu na trudniejszą diagnostykę. Tak jest w przypadku ciał obcych w obrębie tkanek miękkich. Autorzy przedstawiają przypadek metalicznego ciała obcego tkwiącego w języku przez ponad 6 tygodni przed ostatecznym jego rozpoznaniem i usunięciem.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2018, 7, 2; 41-44
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metallic body foreign language - case report
Autorzy:
Kuźmińska, Magdalena
Wężyk, Aleksandra
Kołodziejczyk, Paulina
Gotlib, Tomasz
Chęciński, Piotr
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1399934.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
foreign body
language
metallic
Opis:
Probably every laryngologist in his career will face off an issue of foreign body removal. It can be problematic especially that foreign body cause the trauma of surrounding tissues or may translocate unpredictably. A space of the middle and lower throat is the most common location. Occasionally it can be located in less obviously place, which force the laryngologist to prevent more viligant diagnostic. A foreign body pounded within soft tissue of the oral cavity is the example. A case report of a metallic foreign body inherent in the tongue for more than six weeks before the final treatment is presented.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2018, 7, 2; 41-44
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the logics of fuzzy sets in law on the example of the case of “assets coming indirectly from a prohibited act”
Zastosowanie logik zbiorów rozmytych w prawie: na przykładzie znamienia „mienie pochodzące pośrednio z czynu zabronionego”
Autorzy:
Sobol-Kołodziejczyk, Piotr
Zielinski, Marek
Powiązania:
https://bibliotekanauki.pl/articles/443693.pdf
Data publikacji:
2017
Wydawca:
Wyższa Szkoła Humanitas
Tematy:
logic of fuzzy sets
criminal law
combatting organised crime
“dirty” property
recovery of the crime property
logika zbiorów rozmytych
prawo karne
zwalczanie przestępczości zorganizowanej
„brudne” mienie
odebranie mienia przestępczości
Opis:
In this article an attempt was made to formulate a fundamental distinction for the consideration of criminal law, namely “property coming indirectly from a prohibited act”. For this purpose, fuzzy set logic tools were used. Finally, it has been shown that it is possible to apply strict logical concepts to the language of the law and legal language.
W artykule podjęto próbę formalizacji znamienia fundamentalnego do rozważań z zakresu prawa karnego, a mianowicie – „mienie pochodzące pośrednio z czynu zabronionego”. W tym celu wykorzystano narzędzia logiki zbiorów rozmytych. Ostatecznie wykazano, że jest możliwie stosowanie ścisłych koncepcji logicznych do języka prawnego i prawniczego.
Źródło:
Roczniki Administracji i Prawa; 2017, 17/1; 71-80
1644-9126
Pojawia się w:
Roczniki Administracji i Prawa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kilka uwag w sprawie błędnego formułowania argumentów przez prawników
Autorzy:
Sobol-Kołodziejczyk, Piotr
Zielinski, Marek
Powiązania:
https://bibliotekanauki.pl/articles/443305.pdf
Data publikacji:
2017
Wydawca:
Wyższa Szkoła Humanitas
Tematy:
prawo
argumentacja
logika
law
argumentation
logic
Opis:
Remarks about some legal arguments
Źródło:
Roczniki Administracji i Prawa; 2017, 17/zeszyt specjalny; 103-111
1644-9126
Pojawia się w:
Roczniki Administracji i Prawa
Dostawca treści:
Biblioteka Nauki
Artykuł

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