Robert Jasionowski

Dr. Robert Jasionowski


Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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12 December 2024 in Applied Sciences
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Tymoteusz Igor MillerTymoteusz Igor Miller
Tymoteusz Igor Miller
IDIrmina Durlik
Irmina Durlik
AŁAdrianna Łobodzińska
Adrianna Łobodzińska
LDLech Dorobczynski
Lech Dorobczynski
RJRobert Jasionowski
Robert Jasionowski
This article delves into the critical integration of domain knowledge into AI/ML systems across various industries, highlighting its importance in developing ethically responsible, effective, and contextually relevant solutions. Through detailed case studies from the healthcare and manufacturing sectors, we explore the challenges, strategies, and successes of this integration. We discuss the evolving role of domain experts and the emerging tools and technologies that facilitate the incorporation of human expertise into AI/ML models. The article forecasts future trends, predicting a more seamless and strategic collaboration between AI/ML and domain expertise. It emphasizes the necessity of this synergy for fostering innovation, ensuring ethical practices, and aligning technological advancements with human values and real-world complexities.

1 November 2014 in Journal of the European Ceramic Society
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Journal Article
Closed access
Zbigniew PędzichZbigniew Pędzich
Zbigniew Pędzich
RJRobert Jasionowski
Robert Jasionowski
Magdalena ZiąbkaMagdalena Ziąbka
Magdalena Ziąbka

1 March 2014 in Archives of Metallurgy and Materials
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Journal Article
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RJRobert Jasionowski
Robert Jasionowski
DPD. Przetakiewicz
D. Przetakiewicz
WPW. Przetakiewicz
W. Przetakiewicz

5 April 2020 in Materials
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Małgorzata Małgorzata LachowiczMałgorzata Małgorzata Lachowicz
Małgorzata Małgorzata Lachowicz
RJRobert Jasionowski
Robert Jasionowski
The main purpose of this work was to experimentally determine the effect of the cooling rate during the eutectoid transformation on the corrosion resistance of a hypoeutectic Zn-4Al cast alloy in 5% NaCl solution. This was considered in relation to the alloy microstructure. For this purpose, metallographic and electrochemical studies were performed. It was found that the faster cooling promoted the formation of finer (α + η) eutectoid structures, which translated into a higher hardness and lower corrosion current density. In the initial stage of corrosion processes the eutectoid structure in the eutectic areas were attacked. At the further stages of corrosion development, the phase η was dissolved, and the α phase appears to be protected by the formation of corrosion products.

21 April 2016 in Key Engineering Materials
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RJRobert Jasionowski
Robert Jasionowski
Wojciech PolkowskiWojciech Polkowski
Wojciech Polkowski
DZDariusz Zasada
Dariusz Zasada
A cavitation erosion is the process based on an impact of pressure pulses on a material’s surface caused by the phenomenon of cavitation. The term cavitation is defined as a phenomenon of formation, growth and disappearance (implosion) of bubbles due to cyclic pressure variations in a liquid. The cavitation initiators are embryos (cavitation nuclei with a size up to 50 μm), located in the water or on wetted surfaces that lead to decreasing of the liquid ability to transfer tensile stresses. The role of embryos is played by micro gas bubbles, fine solid particles, micro-organisms or gas-filled pores on a surface of solid body embedded in a liquid. A rapid pressure drop occurring within the liquid and a presence of cavitational kernel causes rupture the continuity of the liquid and thus lead to the formation of steam-gas mixture areas, a so called cavitation bubbles. A cavitation bubble may be filled with a gas, a vapor or a steam/gas mixture.A course of cavitation depends on a cavitation type. In thepresent work, a mechanism of cavitiational destruction of 99,7 % titaniumtested on vibrational and jet-impact valaboratory stands, is analyzed. Results of thecavitational resistance evaluation of Ti99.7 titanium carried out onvibrational and jet-impact stands have revealed different mechanisms of acavitation destruction caused by various forms of cavitation. It was found thata surface of titanium samples tested on the vibratory stand was covered by verylarge number of microcracks which in a later stage of the research leads to theerosion of the material. The cavitational destruction of Ti samples on the jet-impact stand is initiatedby a plastic straining of subsurface area, which in the further stage leads toan erosion represented by the detachment of whole grains anda formation of deep pits on the material’s surface. Additionally, results of conducted studies have confirmed the fatigue character of the cavitationaldestruction process.

1 June 2015 in Archives of Metallurgy and Materials
Verified
Journal Article
Open access
RJRobert Jasionowski
Robert Jasionowski
ZPZ. Pędzich
Z. Pędzich
DZD. Zasada
D. Zasada
WPW. Przetakiewicz
W. Przetakiewicz
The problem of the devastation of fluid-flow machinery components is very complex, because it consists of processes of erosion and corrosion. The most dangerous factor is the cavitation phenomenon, which is very difficult to eliminate through the use of design solutions. Usage of materials with greater resistance to cavitation erosion seems to be an obvious effective method of prevention. Such materials as FeAl intermetallic alloys and ceramic materials may be considered as reasonable candidates for this purpose. In the presented work, cavitation erosion resistance of FeAl intermetallic alloys and Al2O3 – based ceramic materials, was investigated and compared.