PUBLIKACJE AGH

Permanent URI for this communityhttps://repo.agh.edu.pl/handle/AGH/102727

Zbiór zawiera kolekcje publikacji powstałych w ramach działalności Akademii Górniczo-Hutniczej, w tym:

publikacje autorstwa pracowników, doktorantów i studentów AGH,
artykuły, książki, fragmenty, wydane oficjalnie, jak również wersje przed publikacją (preprinty, postprinty).
publikacje powstałe w ramach realizowanych na Uczelni projektów badawczych,
Wydawnictwa książkowe, opublikowane przez Wydawnictwa AGH,

ZASADY DOSTĘPU:

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Now showing 1 - 20 of 378

Access status: Open Access ,
Rozwój osobisty z perspektywy studenta
(Wydawnictwa AGH, 2025) Szajer, Igor
The article presents and elaborates on the concept of personal development. It discusses what self-development is and outlines its key aspects from the perspective of (undergraduate and graduate) students. The paper analyzes the results of a survey conducted among members of the academic community. It explores the relationship between personal development priorities and the stage of studies, as well as examines the impact of external pressure on the development process effectiveness.
Access status: Open Access ,
Methodological Aspects of Innovation of Project and Production Businesses
(Wydawnictwa AGH, 2023) Sala, Jolanta; Tańska, Halina
In this chapter the authors present a proposal of selected aspects of methodology for improving individual and team innovation in enterprises. Methodological aspects were reasoned with measurements of the level of innovation by GUS and its causes in Poland. The reasons for the low level of innovation are justified by historical roots, as the seven main points formulated by PTI in 1980, similarly to the 21 postulates of “Solidarity”, accurately reflect the main reasons for Poland’s backwardness in development and, unfortunately, most of them are still valid. These reasons require action on the part of the Polish state, but they should also be used in bottom-up activities of each enterprise after minor interpretation corrections. The chapter focuses on industrial enterprises, because the realities of creativity of engineers and technicians are different from workers in other sectors of the economy. An important determinant of creativity in industrial enterprises with aspirations to design their products and production processes is the set of instruments, in particular CAD/CAM/CAE. Three methodological proposals guarantee a faster and more effective way to creativity and innovativeness of enterprises, although their implementation requires a lot of effort on the part of both employees and their employers. At the same time, they are a prerequisite for acquiring the ability to make strategic innovations in the enterprise. The developed methodological solutions have been tested in practice and constitute an institutional recommendation.
Access status: Open Access ,
Development of PV panel recycling process enabling complete recyclability of end-of-life silicon photovoltaic panels
(2025) Nalluri, Srinath; Kuśmierczyk, Filip; Leow, Shin Woei; Reindl, Thomas; Padhamnath, Pradeep; Kopyściański, Mateusz; Karbowniczek, Joanna; Kozieł, Tomasz
Wydział Inżynierii Metali i Informatyki Przemysłowej
The cumulative PV panel waste is expected to reach ≈8 million tonnes by 2030 and ≈ 80 million tonnes by 2050. This presents an opportunity to pursue new avenues in terms of recycling and improving the circularity of the PV panels. In this work we present experimental results for recycling c-Si PV panels using recently developed electrohydraulic shock-wave fragmentation (EHF) of PV panels. The EHF process allows for the recovery of all materials used in the manufacturing of PV panels. We use different types of panels for the recycling process and analyse the material recoverability in each condition. Further, we analyse the effectiveness of chemical treatment in isolating metals from the silicon obtained from recycled c-Si PV panels, providing an opportunity of recovering high quality metal and silicon. The separation process allows for the high-quality material recovery and could potentially improve the economic feasibility of the overall recycling process.
Access status: Open Access ,
Coprecipitation of Ce with lead phosphates
(2025) Staszel Kacper; Sordyl Julia; Puzio Bartosz; Manecki Maciej
Wydział Geologii, Geofizyki i Ochrony Środowiska
Current development of sustainable technologies creates a demand for new sources of Rare Earth Elements (REE). Recent studies suggest that coprecipitation in the form of Pb-phosphates is one of the most effective methods in REE removal from aqueous solutions. This work focuses on the experimental study of the mechanisms of Ce coprecipitation with Pb phosphates, in particular with lead apatite - pyromorphite (Pb5(PO4)3Cl). Coprecipitation experiments were conducted at ambient conditions, at pH range 1–11, by mixing solutions containing high concentrations of Pb and Ce (∼66,700 ppm and ∼ 7600 ppm, respectively) with solutions containing stoichiometric concentrations of PO4 and Cl. As a result of coprecipitation with Pb phosphates, the Ce concentration decreased significantly to <2 ppm. The main product of the coprecipitation was Ce-doped pyromorphite (Pymsingle bondCe). Removal of Ce was most effective under alkaline conditions, while performance was slightly worse under acidic conditions, due in part to the slightly higher solubility of the precipitate. This was compared with a series of control experiments in the absence of either Pb, Cl, or Ce. Precipitation in the absence of Pb resulted in the formation of fibrous rhabdophane-Ce. In the absence of Cl, various phases were formed depending on pH conditions, such as ‘phosphoschultenite’ (PbHPO4), Pb-hopeite (PbPb2(PO4)2·nH2O), mixed Pb and Ce hydrous phosphates, and hydroxylpyromorphite (Pb5(PO4)3OH). In the absence of Ce, pure microcrystalline pyromorphite precipitated. Coprecipitation of Ce with Pb phosphates in the presence of Cl is advantageous due to the recovery of almost all Ce from solution in the form of a micro-crystalline Pym-Ce that is a very stable, insoluble phase easily separated from suspension. The precipitation of Pym-Ce is homogenous over a wide range of pH, assuring consistency in the obtained phases regardless of starting conditions. Achieved high Ce removal levels may be crucial for the progress of the REE extraction industry, in terms of this method being applicable to other REE for their recovery from solutions, including apatite leachates.
Access status: Open Access ,
Magnetorheological fluids subjected to non-uniform magnetic fields: experimental characterization
(2023) Kubık, Michał; Gołdasz, Janusz; Macháček, Ondřej; Strecker, Zbyněk; Sapiński, Bogdan
Magnetorheological (MR) fluids are suspensions of fine, low-coercivity, high magnetizable particles in a continuous liquid phase. When subjected to magnetic field, the material exhibits a rapid change in the apparent viscosity of several orders of magnitude. This unique capability has been successfully exploited in automotive semi-active suspensions systems or systems for manufacturing high quality optics. In a majority of the existing systems, the rheology of MR fluids is controlled by an external uniform field oriented perpendicularly to the fluid flow direction. In general, it is an inherent feature of MR systems operating in flow, shear or squeeze modes, respectively. There is an experimental evidence that the behavior of MR fluids in the so-called pinch-mode (in which the fluid is subjected to non-uniform magnetic field distributions ) clearly stands out against the remaining three operating modes. With the predecessors, the flow through the channel occurs once a pressure across it exceeds the field-dependent threshold pressure. For comparison, in pinch mode valves the magnetic flux energizes mostly the layers of the materials near the channel walls. The outcome is a change in the channel’s effective diameter achieved solely via material means without changing its geometry. To study the fluid’s unique behavior in the pinch mode, the authors designed a prototype valve assembly and examined several fluid formulations of various particle concentration levels across a wide range of external (velocity, magnetic field density) stimuli in an organized effort to further comprehend the phenomenon. The obtained data indicate that the magnitude of the particular effect does not only depend on the magnitudes of the magnetic stimuli but also on the particle concentration; the smaller the concentration of particles the more pronounced the pitch mode like behavior is. In general, the authors believe that the study may provide guidelines as to the selection of fluid formulations for developing novel valveless actuators utilizing MR fluids operating in pinch mode.
Access status: Open Access ,
Innowacyjne technologie i materiały wykorzystywane przy produkcji chwytów wspinaczkowych
(Wydawnictwa AGH, 2024) Dębicki, Wiktor
Climbing holds are a basic element of the equipment of every climbing wall – commercial, home or specialized. The selection of appropriate materials and production technology is crucial to ensure that they meet all standards. Climbing holds, in accordance with applicable law, must have an appropriate approval or certificate, which has been confirmed by an independent accredited research unit. Therefore, efforts are made to automate the production processes of climbing holds, reduce the amount of waste and use materials taking into account the ecological aspect. The work presents the stages of production processes. After the technological and technical analysis, the greatest qualitative benefits of the proposed solutions were presented and directions for further actions were indicated.
Access status: Open Access ,
Zamiast wstępu… Kilka słów o studenckim kole naukowym zarządzanie
(Wydawnictwa AGH, 2023) Styk, Katarzyna
Access status: Open Access ,
Thermally insulating mats based on electrospun fibers with bioinspired nano-groove surface structure
(2025) Ura, Daniel Paweł; Szewczyk, Piotr K.; Parisi, Gregory; Osak, Andrzej; Puzio, Bartosz; Wrona, Jan; Kim, Il-Doo; Stachewicz, Urszula
Wydział Inżynierii Metali i Informatyki Przemysłowej
Heating and heat retention in buildings account for over 50 % of total energy costs, emphasizing the urgent need not only for advanced thermal insulation materials but also for nature-inspired design strategies to enhance energy efficiency and address the global energy crisis. In this study, we present a one-step fabrication method that improves both thermal insulation efficiency and the mechanical performance of polymer fiber mats. By leveraging bioinspired design, we successfully fabricate nanogroove fibers by precisely controlling humidity during in-situ electrospinning. This approach mimics the nanogroove topography of Old Man Cactus hair, enabling a simple yet effective method to regulate the nanoscale morphology of fibers. The resulting nanogroove fibers exhibit a substantial ~10 % reduction in surface temperature compared to conventional insulation coatings when applied to hot water pipes. Remarkably, our nanogroove fibrous coatings achieve 25 % higher energy savings per unit area and approximately 29 times higher per gram of material mass than commercial rubber insulation materials. This study highlights the critical role of nanoscale surface morphology engineering, particularly in the facile fabrication of nanogroove structures, in mitigating energy and heat loss during thermal transport processes. Based on the unique advantages of humidity-controlled polymer fiber architectures, this approach enables the development of flexible, high-performance thermal insulation materials, opening new avenues for versatile applications across various fields.
Access status: Open Access ,
Electrohydraulic fragmentation processing enabling separation and recovery of all components in end-of-life silicon photovoltaic panels
(2025) Padhamnath, Pradeep; Nalluri, Srinath; Kuśmierczyk, Filip; Kopyściański, Mateusz; Karbowniczek, Joanna; Leow, Shin Woei; Reindl, Thomas
Wydział Inżynierii Metali i Informatyki Przemysłowej
The exponential increased use of PV panels for energy production would also lead to enormous volumes of PV waste that need to be dealt with in an environmentally responsible manner. In this work we present experimental results for recycling crystalline silicon (c-Si) PV panels using recently developed electrohydraulic shock wave-based fragmentation of PV panels. The electrohydraulic fragmentation process allows for the efficient delamination of the modules and subsequent recovery of almost all valuable materials used in the manufacturing of PV panels, without thermally decomposing the polymers and eliminates creation of any toxic or hazardous waste during the process. We study the impact of the type of panel, size of the feed material and process duration on the quantity and quality of material recovered after the process.
Access status: Open Access ,
Kinetics of the binding process of furan moulding sands, under conditions of forced air flow, monitored by the ultrasonic technique
Matonis, Natalia; Zych, Jerzy
Wydział Odlewnictwa
The paper presents the results of research on the kinetics of the binding process of self-hardening moulding sands with an organic binder under conditions of forced air flow at various pressure values. Three moulding sands made using urea-furfuryl resin Furanol FR75A technology were studied. The moulding sands were prepared on a base of quartz sand with an average grain size of $d_{L}$=0.25, 0.29 and 0.37 mm, with permeability values of 306, 391 and $476 m^{2}/10^{8} Pa \cdot s$ (for $ρ_{0}=1.60$, 1.60 and $1.61 g/cm^{3}$, respectively). The research was conducted for a resin content of 1% with a constant proportion of hardener to resin, which was equal to 50%. Samples of the tested moulding sands were blown with air at pressures of 0.1, 0.2, 0.4, 0.6, 0.8, and 1.0 bar. The kinetics of the hardening process was monitored using ultrasound technology, according to a previously developed methodology [1]. The research was carried out on an ultrasound testing station equipped with a temperature chamber and an airflow reducer. The tests were conducted at a temperature of 20°C, and of the air flow pressure on the changes in ultrasonic wave velocity in the hardening mouldins sand as a function of time, the kinetics of the hardening process, and the degree of moulding sand hardening were determined. Additionally, the influence of the moulding sand permeability on the course of the hardening process at a constant air flow pressure was determined.
Access status: Open Access ,
Analysis of compressor units – operational issues
(Wydawnictwa AGH, 2023) Kurdziel, Franciszek; Pytel, Krzysztof; Kalwar, Adam; Grzywnowicz, Grzegorz; Zdobytskyi, Andriy
The characteristics of compressor chiller operation for the generation of cooling for the central systems of mine air-conditioning installations are presented. The modes of operation of the units and their use in the final stage of chilled-water cooling are described. The construction of the screw compressor and the compression methods are discussed. The actual use of compressors in the third stage of chilled water generation is analyzed. The free-cooling installation as a solution for supporting chilled-water generation is presented.
Access status: Open Access ,
Kazimierz Wiśniak teatralny i piwniczny : wystawa w Archiwum Nauki PAN i PAU w Krakowie (24 kwietnia - 31 sierpnia 2023)
(Akademia Górniczo-Hutnicza, 2023) Laskosz, Joanna; Sieński, Hieronim
Biblioteka Główna
Access status: Open Access ,
Praktyki zarządzania kapitałem ludzkim a behawioralne wyniki pracy
(Wydawnictwa AGH, 2025) Pec, Monika
Access status: Open Access ,
Wielowymiarowość przestrzeni w bibliotece naukowej XXI wieku
(Wydawnictwa AGH, 2023) Babik, Wiesław
Biblioteka Główna
Celem artykułu jest identyfikacja, opis i interpretacja różnych przestrzeni, w ramach których funkcjonuje współczesna biblioteka naukowa. Identyfikacji i opisu tych przestrzeni dokonano za pomocą analizy i krytyki piśmiennictwa oraz metodą obserwacji. Ustalono, że współczesna biblioteka akademicka charakteryzuje się różnorodnością przestrzeni, w których funkcjonuje. Przeprowadzone badania i analiza pozwoliły na wieloaspektowe spojrzenie na bibliotekę akademicką i przedstawienie jej w postaci wielowymiarowej struktury. Egzemplifikacji dokonano na przykładzie Biblioteki Głównej Akademii Górniczo-Hutniczej w Krakowie.
Access status: Open Access ,
Badania reakcji syntezy jądrowej w ciele stałym z wykorzystaniem akceleratorów plazmowych
(Wydawnictwa AGH, 2025) Filipowicz, Mariusz
Access status: Open Access ,
Digitalizacja i udostępnienie literatury firmowej z zakresu nauk inżynieryjno-technicznych 1955–1989. Projekt Biblioteki Głównej AGH
(Stowarzyszenie EBIB, 2024) Chwastek, Agata; Łaciak, Grażyna
Biblioteka Główna
Access status: Open Access ,
Nový svět a nový život. Spiritistické hnutí a Teosofická společnost na Těšínsku od poloviny 19. Století do poloviny 20. Století
(Wydawnictwa AGH, 2024) Szymeczek, Józef
Access status: Open Access ,
Stanowisko badawcze do demonstracji działania dźwiękochłonnych metamateriałów akustycznych w falowodach o przekroju okrągłym
(Wydawnictwa AGH, 2024) Książek, Piotr
This paper is concerned with the construction of a demonstration kit to illustrate the applications of acoustic resonance-based suppressors in the context of narrowband industrial noise suppression. The kit consists of two main components – a circular waveguide and interchangeable silencer elements inserted into the waveguide channel. The functionality of the attenuators is demonstrated using an application that compares the acoustic spectrum of the signal recorded at the outlet of the waveguide without the attenuators installed and with the attenuators in place. Construction steps of the demonstration kit are presented as well as the process of optimising the geometry of the resonator dampers and the difficulties of using 3D printing in the manufacturing processes of acoustic metamaterials are presented. The possibilities of using the demonstration set in the context of teaching, science communication and tackling acoustic noise pollution were also discussed. The broad possibilities for further development of the design, particularly the potential for use in prototyping new geometries of acoustic metamaterials were also addressed.
Access status: Open Access ,
On graph models in knowledge engineering
(Wydawnictwa AGH, 2023) Ligęza, Antoni; Adrian, Weronika Teresa; Adrian, Marek; Kluza, Krzysztof; Jobczyk, Krystian; Wiśniewski, Piotr; Ślażyński, Mateusz; Jemioło, Paweł; Sepioło, Dominik; Stachura-Terlecka, Bernadetta; Zaremba, Mateusz; Szymkowski, Mateusz; Suchenia, Anna; Potempa, Tomasz
The paper presents selected applications of graph models in knowledge engineering. Starting from the basic definition of a graph as a set of nodes connected by edges, the article presents possible extensions of this concept aimed at increasing the power of expression and the ability to process knowledge. In particular, the work focuses on selected applications of graph models in research areas explored by the members of the KRaKEn research team.
Access status: Open Access ,
Promocja zasobów i usług na podstawie doświadczeń Biblioteki Uniwersytetu Kazimierza Wielkiego w Bydgoszczy
(Wydawnictwa AGH, 2023) Mrotek, Katarzyna; Kamzol, Małgorzata
Biblioteka Główna
Artykuł opisuje działania promocyjne Biblioteki UKW. Skupia się na wyzwaniach, z jakimi w tym zakresie musi mierzyć się współczesna biblioteka naukowa. Prezentuje ofertę usług nie tylko dla naukowców i studentów, ale też mieszkańców Bydgoszczy i regionu, akcentując te najbardziej istotne w działalności Biblioteki – Galerię Biblioteki, projekt Pamięć bydgoszczan – Archiwum Historii Mówionej, Kujawsko-Pomorską Bibliotekę Cyfrową, Repozytorium i inne. Pokazuje też, w jaki sposób dostęp do nowych technologii doprowadził do zmian w organizacji i funkcjonowaniu biblioteki w obszarze promocji zasobów i usług informacyjno-komunikacyjnych, jakich konkretnych narzędzi technologicznych używają bibliotekarze, a także przedstawia ich wpływ na kształtowanie wizerunku i działalności marketingowej Biblioteki. Wszystkie omówione w artykule usługi, nowe projekty oraz działania promocyjne nie tylko są dla Biblioteki szansą na zaprezentowanie swojego nowoczesnego oblicza, ale też próbą określenia dalszego kierunku rozwoju.