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Tytuł:
Finitely additive functions in measure theory and applications
Autorzy:
Alpay, Daniel
Jorgensen, Palle
Powiązania:
https://bibliotekanauki.pl/articles/29519748.pdf
Data publikacji:
2024
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Hilbert space
reproducing kernel
probability space
Gaussian field
transforms
covariance
Itô integration
Itô calculus
generalized Brownian motion
Opis:
In this paper, we consider, and make precise, a certain extension of the Radon–Nikodym derivative operator, to functions which are additive, but not necessarily sigma-additive, on a subset of a given sigma-algebra. We give applications to probability theory; in particular, to the study of μ-Brownian motion, to stochastic calculus via generalized Itô-integrals, and their adjoints (in the form of generalized stochastic derivatives), to systems of transition probability operators indexed by families of measures μ, and to adjoints of composition operators.
Źródło:
Opuscula Mathematica; 2024, 44, 3; 323-339
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphology of an ITO recombination layer deposited on a silicon wire texture for potential silicon/perovskite tandem solar cell applications
Autorzy:
Kulesza-Matlak, Grazyna
Szindler, Marek
Szindler, Magdalena M.
Sypien, Anna
Major, Lukasz
Drabczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/27315696.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
tandem solar cell
silicon nanowires
MAE etching
ITO
recombination layer
Opis:
This paper presents research on the deposition of an indium tin oxide (ITO) layer which may act as a recombination layer in a silicon/perovskite tandem solar cell. ITO was deposited by magnetron sputtering on a highly porous surface of silicon etched by the metal-assisted etching method (MAE) for texturing as nano and microwires. The homogeneity of the ITO layer and the degree of coverage of the silicon wires were assessed using electron microscopy imaging techniques. The quality of the deposited layer was specified, and problems related to both the presence of a porous substrate and the deposition method were determined. The presence of a characteristic structure of the deposited ITO layer resembling a "match" in shape was demonstrated. Due to the specificity of the porous layer of silicon wires, the ITO layer should not exceed 80 nm. Additionally, to avoid differences in ITO thickness at the top and base of the silicon wire, the layer should be no thicker than 40 nm for the given deposition parameters.
Źródło:
Opto-Electronics Review; 2023, 31, 4; art. no. e148222
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simulation study of temperature effects on performance parameters of silicon heterojunction solar cells with different ITO/a-Si:H selective contacts
Autorzy:
Balent, Jošt
Topič, Marko
Krč, Janez
Powiązania:
https://bibliotekanauki.pl/articles/2063902.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
heterojunction
photovoltaics
simulation
temperature
tunnelling
Opis:
Effects of temperature variation on the performance of silicon heterojunction solar cells are studied using opto-electrical simulations. It is shown that the low-temperature cell efficiency is determined by the fill factor, while at high temperatures it depends on the open-circuit voltage. Simulations revealed that the low-temperature drop in the fill factor is caused by poor tunnelling, in particular at the ITO/p-a-Si:H heterojunction. The authors link this drop in fill factor to a low maximum-power-point voltage and show how poor tunnelling is reflected in the charge redistribution determining the device voltage. The effect of the contact work function on temperature behaviour of efficiency by varying the electron affinity of ITO layers has been demonstrated. It was also demonstrated that increasing the electron affinity of ITO on the p-side minimises the work function mismatch, leading to significant improvements in efficiency, especially at low temperatures, while optimisation on the n-side results in maginal improvements over the entire temperature range. In addition to the cumulative effects of the temperature-dependent parameters, their individual contributions to the efficiency were also investigated. Moreover, it was presented that the thermal energy (kT) determines the efficiency temperature behaviour, while other parameters play only a minor role. This paper shows how temperature variations affect device performance parameters.
Źródło:
Opto-Electronics Review; 2022, 30, 1; 1--13
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
LCD panels bioleaching with pure and mixed culture of Acidithiobacillus
Autorzy:
Willner, Joanna
Fornalczyk, Agnieszka
Saternus, Mariola
Sedlakova-Kadukova, Jana
Gajda, Bernadeta
Powiązania:
https://bibliotekanauki.pl/articles/2146845.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
bioleaching
aciditiooxidans
ITO
indium
tin
LCD panels
recovery
Opis:
The influence of pure and mixed culture of A. ferrooxidans and A. tiooxidans as well as different pulp density (1 and 2%) of LCD panels on the In and Sn bioleaching efficiency was investigated. Pulp density is one of the factors affecting the metals extraction efficiency during biological leaching. It has been shown that lower pulp density results in higher indium and tin dissolution. The A. ferrooxidans bioleaching system showed better metal extraction results than A. thiooxidans, especially for tin, indicating the special role of iron and A. ferrooxidans in tin recovery. The highest leaching rate of both indium (94.7%) and tin (98.2%) was obtained using iron and sulfur medium inoculated with mixed bacteria and a pulp density of 1% w/v.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 1; 15--23
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Półprzezroczystość jako forma tworzenia przestrzeni we współczesnej architekturze Japonii
Translucency as a form of creating space in contemporary Japanese architecture
Autorzy:
Petri, Maria
Powiązania:
https://bibliotekanauki.pl/articles/2170602.pdf
Data publikacji:
2022
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
półprzezroczystość
przezroczystość
architektura
architektura japońska
Shigeru Ban
Kengo Kuma
SANAA
Toyo Itō
Jun’ichirō Tanizaki
translucency
transparency
architecture
Japanese architecture
Opis:
Artykuł podejmuje temat półprzezroczystości w architekturze na przykładzie współczesnych obiektów architektonicznych w kontekście kultury japońskiej. Na podstawie założenia teoretycznego Jun’ichirō Tanizakiego, takiego jak kontrast pomiędzy wschodnią a zachodnią wrażliwością i estetyką, autorka podejmuje próbę potwierdzenia teorii Tanizakiego we współczesnych realizacjach japońskich, w których zastosowano półprzezroczystość.
The article deals with the topic of translucency in architecture on the example of contemporary architectural objects in the context of Japanese culture. Based on Jun’ichirō Tanizaki’s theoretical assumptions, such as the contrast between eastern and western sensibilities and aesthetics, the author attempts to find confirmation of Tanizaki’s theory in contemporary Japanese projects in which translucency was used.
Źródło:
Państwo i Społeczeństwo; 2022, 2; 131-158
1643-8299
2451-0858
Pojawia się w:
Państwo i Społeczeństwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the Surface Microtexture of Sputtered Indium Tin Oxide Thin Films
Autorzy:
Ţălu, Ştefan
Kulesza, Sławomir
Bramowicz, Miroslaw
Stępień, Krzysztof
Dastan, D.
Powiązania:
https://bibliotekanauki.pl/articles/2049693.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
AFM
DC magnetron sputtering
ITO thin films
stereometric analysis
3-D surface microtexture
Opis:
The present research work involves the study of the 3-D surface microtexture of sputtered indium tin oxide (ITO) prepared on glass substrates by DC magnetron at room temperature. The samples were annealed at 450°C in air and were distributed into five groups, dependent on ambient combinations applied, as follows: I group, using argon (Ar); II group, using argon with oxygen (Ar+O2); III group, using argon with oxygen and nitrogen (Ar+O2+N2); IV group, using argon with oxygen and hydrogen (Ar+O2+H2); and V group, using argon with oxygen, nitrogen, and hydrogen (Ar+O2+N2+H2). The characterization of the ITO thin film surface microtexture was carried out by atomic force microscopy (AFM). The AFM images were stereometrically quantitatively analyzed to obtain statistical parameters, by ISO 25178-2: 2012 and ASME B46.1-2009. The results have shown that the 3-D surface microtexture parameters change in accordance with different fabrication ambient combinations.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 443-450
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ignatian Pedagogy and Its Religious Inspirations
Autorzy:
Satō, Hiroto
Itō, Yuina
Powiązania:
https://bibliotekanauki.pl/articles/40494076.pdf
Data publikacji:
2021
Wydawca:
Akademia Ignatianum w Krakowie
Tematy:
pedagogika ignacjańska
ćwiczenia duchowe
rozeznawanie
Ignatian pedagogy
spiritual exercises
discernment
Jesuits
Opis:
Research Objective: The aim of this article is to shed light on the religious inspirations that underpin Ignatian Pedagogy. The research problem and methods:The research problems involve questions concerning the most important ideas of Ignatian spirituality, which are based on the existential experience of St. Ignatius Loyola, and which are a source of inspiration for Ignatian Pedagogy. Based on the literature, the fundamental ideas of Ignatian Spirituality and their influence on the emergence and development of Ignatian Pedagogy were analysed. The process of argumentation:Starting from the historical stages of the formation of the key elements of Jesuit spirituality, the key moments of the spiritual experience of St Ignatius of Loyola are shown. The interpretation of the tenets of the Ignatian tradition and its spirituality made it possible to identify the vital ideas that constitute the sources of Ignatian Pedagogy. Research results:The analysis leads to the conclusion that the modern concept of education should be built on the proper concept of the human being. One of the proposals is the concept of a person that we find in Ignatian Pedagogy. It is inspired by Ignatian Spirituality and describes humanity in the perspective of God’s creative act and His love. In this context, the issues of individuality and freedom of each person are especially important.  Conclusions, innovations and recommendations: Human existence in the changing and globalised world means a constant need to respond to change. Therefore, education should be understood as the familiarisation of students with change, which is a necessary condition for their development and thus for the progress of society. The Ignatian Pedagogy is effective in this regard, as it assumes an all-round development of a person and involves another person,  an educator/mentor, who acts as a kind of witness to the ongoing history of life.  
Cel naukowy: Celem niniejszego artykułu jest ukazania religijnych inspiracji, jakie legły u podstaw pedagogiki ignacjańskiej. Problem i metody badawcze:Problemami badawczymi były pytania dotyczące najważniejszych idei, które znajdują się w duchowości ignacjańskiej, bazującej na doświadczeniu egzystencjalnym św. Ignacego Loyoli, a które stanowią źródło inspiracji dla pedagogiki ignacjańskiej. Bazując na literaturze przedmiotu, analizowane był podstawowe idee duchowości ignacjańskiej i ich wpływ na powstanie i rozwój pedagogiki ignacjańskiej. Proces wywodu:Wychodząc od historycznych etapów kształtowania się kluczowych elementów duchowości jezuickiej, ukazane zostały kluczowe momenty doświadczenia duchowego, jakie miał św. Ignacy z Loyoli. Interpretacja założeń tradycji ignacjańskiej i wiążącej się z nią duchowości umożliwiła wskazanie najważniejszych idei, które stanowią źródła pedagogiki ignacjańskiej. Wyniki analizy naukowej:Przeprowadzona analiza prowadzi do wniosku, że współczesna koncepcji edukacji powinna być budowana na właściwej koncepcji człowieka. Jedną z propozycji jest koncepcja człowieka, jaką odnajdujemy w pedagogice ignacjańskiej. Koncepcja ta inspiruje się duchowością ignacjańską i opisuje człowieka w perspektywie aktu stwórczego Boga i Jego miłości. W tym kontekście szczególnie istotne są kwestie dotyczące indywidualności i wolności każdej osoby. Wnioski, innowacje, rekomendacje:Funkcjonowanie człowieka w zmieniającym się i zglobalizowanym świecie oznacza nieustanną konieczność do reagowania na zmiany. W związku z tym edukacja powinna być rozumiana jako oswajanie człowieka ze zmianą, co stanowi konieczny warunek jego rozwoju, a tym samym postępu społeczeństwa. Skuteczna w tym względzie jest pedagogika ignacjańska, która zakłada wszechstronny rozwój człowieka i stawia obok niego drugą osobę – wychowawcę/mentora pełniącego funkcję swego rodzaju świadka toczącej się historii życia.  
Źródło:
Horyzonty Wychowania; 2021, 20, 56; 97-103
1643-9171
2391-9485
Pojawia się w:
Horyzonty Wychowania
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimised magnetron sputtering method for the deposition of indium tin oxide layers
Autorzy:
Musztyfaga-Staszuk, Małgorzata
Pudiš, Dušan
Socha, Robert
Gawlińska-Nęcek, Katarzyna
Panek, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2090684.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
In2O3
Sn2O
ITO
magnetron sputtering method
metoda rozpylania magnetronowego
Opis:
The article presents the method of magnetron sputtering for the deposition of conductive emitter coatings in semiconductor structures. The layers were applied to a silicon substrate. For optical investigations, borosilicate glasses were used. The obtained layers were subjected to both optical and electrical characterisation, as well as structural investigations. The layers on silicon substrates were tested with the four-point probe to find the dependence of resistivity on the layer thickness. The analysis of the elemental composition of the layer was conducted using a scanning electron microscope equipped with an EDS system. The morphology of the layers was examined with the atomic force microscope (AFM) of the scanning electron microscope (SEM) and the structures with the use of X-ray diffraction (XRD). The thickness of the manufactured layers was estimated by ellipsometry. The composition was controlled by selecting the target and the conditions of the application, i.e. the composition of the plasma atmosphere and the power of the magnetrons. Based on the obtained results, this article aims to investigate the influence of the manufacturing method and the selected process parameter on the optical properties of thin films, which should be characterised by the highest possible value of the transmission coefficient (>85–90%) and high electrical conductivity.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 6; e139005, 1--6
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ITO layer as an optical confinement for nitride edge-emitting lasers
Autorzy:
Kuc, M.
Sokół, A. K.
Piskorski, Ł.
Dems, M.
Wasiak, M.
Sarzała, R. P.
Czyszanowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/200863.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
edge-emitting lasers
InGaN/GaN
computer simulation
ITO
optical confinement
Opis:
This paper presents the results of a numerical analysis of nitride-based edge-emitting lasers with an InGaN/GaN active region designed for continuous wave room temperature emission of green and blue light. The main goal was to investigate whether the indium thin oxide (ITO) layer can serve as an effective optical confinement improving operation of these devices. Simulations were performed with the aid of a self-consistent thermal-electrical-optical model. Results obtained for green- and blue-emitting lasers were compared. The ITO layer in the p-type cladding was found to effectively help confine the laser mode in the active regions of the devices and to decrease the threshold current density.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 1; 147-154
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of Re-gripping Techniques Preceding Scored Throws in International-level Judo Competition
Autorzy:
Ito, Kiyoshi
Hirose, Nobuyoshi
Maekawa, Naoya
Powiązania:
https://bibliotekanauki.pl/articles/1030639.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
combat sports
gripping targets
tactical preparation
technical effectiveness
throwing techniques
Opis:
Significant changes in kumite tactics were verified after the 2013 International Judo Federation rule revision, which mandated that competitors initiate sparring immediately at match outset. The research contained in this paper focused on the re-gripping techniques which were affected by this rule revision, relating to the gripping targets, the use of cross gripping techniques, body rotation when executing throws, and the attacking patterns. In total, 372 men’s contests from the Judo Grand Slam Paris 2016 were analyzed using All Japan Judo Federation Science and Research Department SMART Edge system. Throws resulting in scores were identified and the preceding kumite tactics were analyzed. Re-gripping techniques resulted in significantly higher score rates than the no re-gripping techniques when competitors grabbed the place of the competition number, and the place(s) other than the collar and sleeve with at least one hand except the place of the competition number. Re-gripping the opponent and targeting the place of the competition number might facilitate scoring. Using the re-gripping techniques could make a variety of gripping targets effective to score. We emphasize the importance of classifying kumite techniques into two major patterns: re-gripping and no re-gripping techniques when coaching competitors for kumite tactics.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2019, 25, 1; 43-50
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decomposition of Gaussian processes, and factorization of positive definite kernels
Autorzy:
Jorgensen, Palie E. T.
Tian, Feng
Powiązania:
https://bibliotekanauki.pl/articles/255819.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
reproducing kernel Hilbert space frames
generalized Ito-integration
the measurable category analysis/synthesis
interpolation
Gaussian free fields
non-uniform sampling
optimization
transform
covariance
feature space
Opis:
We establish a duality for two lactorization questions, one for general positive definite (p.d.) kernels K, and the other for Gaussian processes, say V. The latter notion, for Gaussian processes is stated via Ito-integration. Our approach to factorization for p.d. kernels is intuitively motivated by matrix factorizations, but in infinite dimensions, subtle measure theoretic issues must be addressed. Consider a given p.d. kernel K, presented as a covariance kernel for a Gaussian process V. We then give an explicit duality for these two seemingly different notions of factorization, for p.d. kernel K, vs for Gaussian process V. Our result is in the form of an explicit correspondence. It states that the analytic data which determine the variety of factorizations for K is the exact same as that which yield factorizations for V. Examples and applications are included: point-processes, sampling schemes, constructive discretization, graph-Laplacians, and boundary-value problems.
Źródło:
Opuscula Mathematica; 2019, 39, 4; 497-541
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ensemble-based Method of Fraud Detection at Self-checkouts in Retail
Autorzy:
Vitynskyi, P.
Tkachenko, R.
Izonin, I.
Powiązania:
https://bibliotekanauki.pl/articles/410756.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
classification
Ensemble-based method
Random Forest
fraud detection
retail
Ito decomposition
imbalanced dataset
Opis:
The authors consider the problem of fraud detection at self-checkouts in retail in condition of unbalanced data set. A new ensemble-based method is proposed for its effective solution. The developed method involves two main steps: application of the preprocessing procedures and the Random Forest algorithm. The step-by-step implementation of the preprocessing stage involves the sequential execution of such procedures over the input data: scaling by maximal element in a column with row-wise scaling by Euclidean norm, weighting by correlation and applying polynomial extension. For polynomial extension Ito decomposition of the second degree is used. The simulation of the method was carried out on real data. Evaluating performance was based on the use of cost matrix. The experimental comparison of the effectiveness of the developed ensemble-based method with a number of existing (simples and ensembles) demonstrates the best performance of the developed method. Experimental studies of changing the parameters of the Random Forest both for the basic algorithm and for the developed method demonstrate a significant improvement of the investigated efficiency measures of the latter. It is the result of all steps of the preprocessing stage of the developed method use.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2019, 8, 2; 3-8
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review on metallic oxide nanoparticles and their application in optoelectronic devices
Autorzy:
Sosna-Głębska, Aleksandra
Szczecińska, Natalia
Znajdek, Katarzyna
Sibiński, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/105973.pdf
Data publikacji:
2019
Wydawca:
Centrum Badań i Innowacji Pro-Akademia
Tematy:
metallic oxide
nanoparticles
ZnO
TiO2
Indium-Tin Oxide
ITO
solar cell
tlenek metalu
nanocząstki
tlenek cynku
dwutlenek tytanu
tlenek indowo-cynowy
ogniwo słoneczne
Opis:
Among the large family of metallic oxides, there is a considerable group possessing excellent semiconducting properties. What follows, they are promising materials for applications in the field of optoelectronics and photonics. Thanks to the development of nanotechnology in the last few decades, it is now possible to manufacture a great variety of different nanostructures. By controlling their size, shape, composition and crystallinity, one can influence such properties as band gap, absorption properties, surface to volume ratio, conductivity, and, as a consequence, tune the material for the chosen application. The following article reviews the research conducted in the field of application of the metallic oxide nanoparticles, especially ZnO, TiO2 and ITO (Indium-Tin Oxide), in such branches of optoelectronics as solid-state lightning, photodetectors, solar-cells and transparent conducting layers.
Źródło:
Acta Innovations; 2019, 30; 5-15
2300-5599
Pojawia się w:
Acta Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
University Ruin and the Contested Usefulness of the Humanities in Japanese Higher Education
Autorzy:
Ito, Toshiko
Powiązania:
https://bibliotekanauki.pl/articles/1374099.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
the humanities
Japan
higher education
usefulness
short-term
long-term
Opis:
At Japanese universities, the standing of the humanities has declined considerably over the last two decades. This decline is reminiscent of Bill Readings’ account of American universities as articulated in his University in Ruins (1996). In Readings’ analysis, American universities are ‘ruined’ because they have abandoned their intrinsic cultural mission in a shift that greatly undermines the standing of the humanities. His recommendation in the American context of the time is the adoption of a certain rhythm of disciplinary attachment and detachment, such as giving more weight to short-term collaborative projects on the assumption that every collaboration has a certain half-life. The manner in which Japanese universities are dealing with the shift against the humanities is more complex than Readings’ recommendation. While the government’s policy makers favor short-term usefulness in a sense superficially similar to Readings’ recommendation, scholars in the humanities tend to insist that the usefulness of humanities is undeniable but needs to be evaluated on a longer timescale.
Źródło:
Forum Pedagogiczne; 2019, 9, 2/1; 237-251
2083-6325
Pojawia się w:
Forum Pedagogiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioleaching of indium and tin from used LCD panels
Autorzy:
Willner, J.
Fornalczyk, A.
Gajda, B.
Saternus, M.
Powiązania:
https://bibliotekanauki.pl/articles/110195.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
bioleaching
ITO
indium recovery
tin recovery
LCD panels
Opis:
The demand for indium is increasing every year. This metal is mainly used as indium tin oxide (ITO) in the production of transparent conductive coatings for liquid crystal displays (LCD). This paper focuses on biohydrometallurgical methods used for the recovery of indium and tin from LCD sourced from spent mobile phones. Bioleaching experiments were carried out in two different leaching media: 9K medium and H2SO4 solution, using mixed, adapted bacteria Acidothiobacillus ferrooxidans and Acidothiobacillus thiooxidans. The main aim of this study was to evaluate the potential and efficiency of indium and tin extraction in the presence of acidophilic microorganisms. Within 35 days, using 9K medium, 55.6% of indium was bioleached, whereas the chemical leaching resulted in a value of 3.4%. Leaching efficiency of tin was 90.2% on the 14th day of the experiment for the biological system (9K) and 93.4% on 21st day of control leaching.
Źródło:
Physicochemical Problems of Mineral Processing; 2018, 54, 3; 639-645
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 65

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