Autor: Szczepaniak, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Investment risks in financing pro-ecological projects – the dilemmas
Autorzy:: Gwizdała, Jerzy Piotr
Kędzierska-Szczepaniak, A.
Powiązania:: https://bibliotekanauki.pl/articles/134962.pdf
Data publikacji:: 2019
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: investment
risk management
financing
ecology
sustainability
Opis:: Environmental protection has increasingly adopted economic dimensions, and the environment is treated as a “capital” that can be used for economic and social development. This capital must be preserved for future generations, which is why increasing attention has been paid to taking pro-ecological actions to protect the environment. In order to improve the quality of the environment, it is necessary to make various types of investments in it. The Sustainable Development Initiative assumes that the economic growth of countries should be implemented in a manner consistent with the natural conditions of nature. The aim of this study was to identify and present the current possibilities of financing sustainability in Poland after joining the European Union, taking into account the risk of undertaking such an investment.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2019, 60 (132); 75-83
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The absorption of ultrasound in a fluid by small obstacles of spherical form
Autorzy:: Czyż, H.
Pop, T.
Szczepaniak, A.
Ściuk, W.
Powiązania:: https://bibliotekanauki.pl/articles/331884.pdf
Data publikacji:: 2010
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: The presented study involves the problem of acoustic energy absorbed by aerosols. The aim of this paper is to present results of the valuation of ultrasound energy absorption general coefficient in the dispersions (aerosols). Aerosol particle is an obstacle for acoustic wave propagating and to surmount of which some energy of the medium vibrating is lost. Aerosol particle results in both acoustic energy scattering and its absorption. Besides, there are heat losses connected with periodic variation of the medium temperature. In this connection propagation of acoustic wave in the aerosol is related to decrease in wave intensity to more extent than in propagating a wave in a pure gaseous medium.
Źródło:: Hydroacoustics; 2010, 13; 53-60
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Optical character recognition using artifical inelligence technologies
Optyczne rozpoznawanie znaków z użyciem sztucznej inteligencji
Autorzy:: Musiał, A.
Szczepaniak, P.
Powiązania:: https://bibliotekanauki.pl/articles/408862.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:: character recognition
artificial intelligence
feature extraction
clustering algorithms
rozpoznawanie znaków
sztuczna inteligencja
ekstrakcja cech
algorytmy klastrowania
Opis:: The article represents results of the research of an Optical Character Recognition system. Proposed OCR system is able to convert a raster image into the text string, which represents the text shown on the input image. The main innovation is the fact that the system was created without following any strict rules. It was more an innovative research rather than simple programming using ready guidelines.
Celem projektu opisywanego w artykule było przygotowanie działającego systemu do optycznego rozpoznawania znaków, tj. zdolnego przekształcić rastrowy obraz wejściowy w łańcuch znaków odpowiadający zapisanemu tekstowi na obrazie. Nowością jest m.in. fakt wykonania tego systemu bez podążania za z góry znaną architekturą aplikacji, a przygotowanie go w sposób bardziej doświadczalny, czyli wykorzystując podejście nowatorskie.
Źródło:: Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2014, 2; 41-44
2083-0157
2391-6761
Pojawia się w:: Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Analysis of transaction price of undevelopedreal estate of Kołobrzeg with the use of GIS technology
Autorzy:: Czajka, A.
Szczepaniak-Kołtun, Z.
Powiązania:: https://bibliotekanauki.pl/articles/100698.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:: undeveloped land
real estate market
GIS
analysis
geovisualisation
grunt niezabudowany
rynek nieruchomości
analiza
Opis:: The expansion of geographic information systems contributes to the development of an information society that increasingly uses geoinformation data in all areas of life. GIS also enters the economic and scientific realm of the real estate market, slowly displacing analogue price registers and real estate values. With the use of GIS tools, many issues in this area (e.g. sales / purchase, rental, average sales prices) can be presented on maps, and the wide database provides many possibilities for carrying out a variety of analyses. The aim of this article is to use the selected GIS technology to analyse the value of real estate in Kołobrzeg. Using the secondary data from the price and property register spanning the years 2013–2016 the value of undeveloped land has been analysed. The analysis was presented by two different methods: cartodiagram and cartogram, and then the results were compared and interpreted. The maps that were developed during the process of analysis provide accessible information about the distribution of real estate values for property valuers as well as potential buyers and sellers.
Źródło:: Geomatics, Landmanagement and Landscape; 2017, 4; 27-37
2300-1496
Pojawia się w:: Geomatics, Landmanagement and Landscape
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The effect of Pt active coating application inside diesel engine on polycyclic aromatic hydrocarbons (PAHS) emission
Autorzy:: Janicka, A
Walkowiak, W.
Szczepaniak, W.
Powiązania:: https://bibliotekanauki.pl/articles/244056.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: active coating
catalyst
polycyclic aromatic hydrocarbons
diesel engine
Opis:: Application of active coating inside of an self-ignition engine may have an important impact on several stages of combustion process: fuel cracking, fore-flame phase, combustion phase and secondary combustion phase [7]. Investigations of such construction are very rare in the literature - especially of hydrocarbons emission. Polycyclic aromatic hydrocarbons (PAHs) are known to have mutagenic and carcinogenic effect on humans [2, 6, 7]. One of the most important anthropogenic sources of these substances is motorization (especially diesel engines). The paper presents results of measurements of PAHs emissions from SB3.1 self-ignition engine with Pt active coating application inside. The catalyst was applied on engine valves surface. Zirconium ceramic was chosen as a coating for catalyst application (also because of its thermo-insulating properties). Because of unstable parameters of self-ignition engine work (pressure and temperature jumps), PAHs were extracted from two phases: gas phase and solid phase (particle matter - PM). A chromatographic method of PAHs identification and analysis, because of their low level of concentration in exhaust gases, needed to be supported by sample purification and enrichment stages [40]. It has been found that a significant decrease of total toxic polycyclic aromatic hydrocarbons concentration in engine exhaust gases for engine with Pt catalyst application. The catalyst application causes also changes in relative concentrations of polycyclic aromatic hydrocarbons.
Źródło:: Journal of KONES; 2008, 15, 2; 131-136
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Inert catalyst in compression ignition engine-VOCs emission
Autorzy:: Janicka, A.
Walkowiak, W.
Szczepaniak, W.
Powiązania:: https://bibliotekanauki.pl/articles/244311.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
inert catalyst
VOCs
compression ignition engine emission
Opis:: The volatile organic compounds (VOC's) are significant group o air pollution emitted during fuel combustion in diesel engines. This research work is continuation of research where the influence of an inert catalyst on toxic emission from a self-ignition engine has been investigated. In particular volatile organic compounds VOC's emissions which are known to have mutagenic and carcinogenic properties, have been studied. The experimental results show that implementation of catalytic coating on chosen elements of diesel engine causes change of percentage participation of particular compounds in their sum and decrease of their concentration. The analysis of chosen compounds (benzene and formaldehyde) shows that the modification which was proposed causes increase of concentration of those substances when engine works in specific conditions, what is connected with change of engine exhaust toxicity and decrease in PAHs concentration, what is connected with toxicity decrease in exhaust gases. In particularly research work stand, the comparison of total VOC's concentration with and without catalytic coating, the comparison of benzene concentration, the comparison of formaldehyde concentration, the comparison of toxicity level with and without catalytic coating are presented in the paper.
Źródło:: Journal of KONES; 2007, 14, 4; 127-131
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis of optical-microwave mixing process in electro-optical modulators
Autorzy:: Galwas, B.A.
Szczepaniak, Z.R.
Powiązania:: https://bibliotekanauki.pl/articles/308368.pdf
Data publikacji:: 2001
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: electro-optical modulator
nonlinear effects
microwave-optical mixing
Opis:: The principle of operation and the general parameters of the electro-optical Mach-Zehnder modulators are reminded in the paper. With the use of the mathematical relationships describing the transmission of the optical signal through the modulator, the theoretical model of the optical signal transmission with two modulating signals at two frequencies will be presented. The theoretical relationships describing the efficiency of the optical-microwave mixing and frequency multiplying in the two-tone operation will be derived. The analysis and the simulations will be performed for different operating points, where the nonlinearity of the transmission characteristic is specially strong.
Źródło:: Journal of Telecommunications and Information Technology; 2001, 2; 57-63
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Effect of titanium on the sintering and microstructure of Ti-doped hydroxyapatite
Autorzy:: Ślósarczyk, A.
Zima, A.
Paszkiewicz, Z.
Szczepaniak, J.
Powiązania:: https://bibliotekanauki.pl/articles/284252.pdf
Data publikacji:: 2009
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: hydroxyapatite
titanium
biomaterials
Źródło:: Engineering of Biomaterials; 2009, 12, no. 89-91; 37
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Photo-devices for optical controlling of microwave circuits
Autorzy:: Szczepaniak, Z.R.
Galwas, B.A.
Powiązania:: https://bibliotekanauki.pl/articles/309090.pdf
Data publikacji:: 2001
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: microwave optoelectronic switch
photodiode
phototransistor
Opis:: The most important optical devices which can be used for controlling microwave circuits will be presented in the paper. The performance and the parameters of the devices such as semiconductor microwave optoelectronic switches, photodiodes and phototransistors were described. The influence of the optical illumination on their microwave parameters will be described in details, including the our own investigations and simulations results. Several applications of such devices and their potential possibilities will be presented.
Źródło:: Journal of Telecommunications and Information Technology; 2001, 3; 86-94
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The effect of Pt internal catalyst on relative carcinogenic coefficient (RCC) of polycyclic aromatic hydrocarbons (PAHs) emitted from diesel engine
Autorzy:: Janicka, A.
Walkowiak, W.
Szczepaniak, W.
Powiązania:: https://bibliotekanauki.pl/articles/247594.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: internal catalyst
polycyclic aromatic hydrocarbons
relative carcinogenic coefficient
diesel engine
Opis:: One of the main anthropogenic sources of PAHs emission is motorization, especially compression ignition engines. The researches of International Agency for Research on Cancer (IARC) proved that some compounds from polycyclic aromatic hydrocarbons group are toxic for live organisms and cause damages of adrenal glands, lymphatic, circulation and respiratory systems. Because of carcinogenic properties and common occurrence in human environment benzo(a)pirene has been accepted as polycyclic aromatic hydrocarbons indicator. In relation to benzo(a)pirene, Nisbet and LaGoy determined relative carcinogenic coefficients (RCC) for individual polycyclic aromatic hydrocarbons. The paper presents results of analysis of PAHs RCC emitted from SB3.1 self-ignition engine with Pt active coating application inside. The catalyst was applied on engine valves surface. Zirconium ceramic was chosen as a coating for catalyst application (also because of its thermo-isolating properties). Because of unstable parameters of self-ignition engine work (pressure and temperature jumps), PAHs were extracted from two phases: gas phase and solid phase (particle matter - PM). A chromatographic method of polycyclic aromatic hydrocarbons identification and analysis, because of their low level of concentration in exhaust gases, needed to be supported by sample purification and enrichment stages. It has been found that implementation of catalytic coating on valves of the engine causes decrease of polycyclic aromatic hydrocarbons concentration in exhaust gases, what results in decrease (in most cases) of the sum of relative carcinogenic coefficient of polycyclic aromatic hydrocarbons.
Źródło:: Journal of KONES; 2008, 15, 3; 209-213
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Inert catalyst in compersion ignition engine - pahs emission
Autorzy:: Janicka, A.
Walkowiak, W.
Szczepaniak, W.
Powiązania:: https://bibliotekanauki.pl/articles/243393.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: inert catalyst
PAHs
compression ignition engine emission
Opis:: In this research work the influence of an inert catalyst on toxic emission from a self-ignition engine has been investigated. In particular polycyclic aromatic hydrocarbons (pahs) emissions, which are known to have mutagenic and carcinogenic properties, have been studied. The experimental results show that implementation of catalytic coating on chosen elements of diesel engine causes decrease in pahs concentration, what is connected with toxicity decrease in exhaust gases. The inert catalyst application (active coating on research engine glow plugs) is very advantageous for decrease of total polycyclic aromatic hydrocarbons (pahs) concentration in engine exhaust gases, especially on idle running. The applied modification of engine combustion space causes significant decrease of exhaust toxicity. Because of high effectiveness in pahs concentration and toxicity decrease it is recommended to continue the researches and extend them by various physical-chemical modifications of catalytic layers. The paper research work stand containing engine test house, engine with a break, fuel reservoir, NO, CO and smoke level analyzers, filter, tube with active coal, exhaust gases uptake system and engine control system. The pahs concentration marked in idle running diesel engine in two states of engine work, pahs concentration marked in diesel engine and the total pahs concentration in engine exhaust gases and pahs toxicity in engine exhaust gases for two engine loads are presented in the paper.
Źródło:: Journal of KONES; 2007, 14, 3; 227-232
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Active contour segmentation of disjoint objects applied to medical images
Autorzy:: Pięta, Ł.
Tomczyk, A.
Szczepaniak, P. S.
Powiązania:: https://bibliotekanauki.pl/articles/333451.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: segmentacja obrazu
image segmentation
potential active contours
Opis:: Potential contours are methods for automatic image analysis. In the present paper, potential contours adapted in the supervised way are used for segmentation of disjoint objects and examined using medical images.
Źródło:: Journal of Medical Informatics & Technologies; 2008, 12; 163-168
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Visualization of 3-D objects in medicine - selected technical aspects for physicians
Autorzy:: Lewandowski, P.
Tomczyk, A.
Szczepaniak, P. S.
Powiązania:: https://bibliotekanauki.pl/articles/333771.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: wizualizacja obiektu 3D
renderowanie powierzchni
renderowanie objętości
renderowanie konturów
3D object visualization
surface rendering
volume rendering
contour rendering
Opis:: In the paper, selected visualization methods are described such as: surface rendering, volume rendering and the simplest approach basing on texture mapping. This work, however, does not aim at a detailed description of those methods but at a friendly presentation of possible ways of visualization and their features which can be of importance for a physician who has some expectations or needs, such as gaining insight into a 3-D object. Those expectations can be satisfied for example by making incisions or using surface transparency option which significantly improves visualization effect and can be of use in diagnostic process.
Źródło:: Journal of Medical Informatics & Technologies; 2007, 11; 59-67
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Interval-valued linguistic summaries of databases
Autorzy:: Niewiadomski, A.
Ochelska, J.
Szczepaniak, P. S.
Powiązania:: https://bibliotekanauki.pl/articles/969963.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: interval-valued fuzzy set
interval-valued linguistic variable
interval-valued linguistic quantifier
linguistic summary of database
interval-valued linguistic summary of database
Opis:: The so-called linguistic summaries of databases are the semi-natural language sentences that enable distilling the most relevant information from large numbers of tuples, and present it in the human consistent forms. Recently, the methods of constructing and evaluating linguistic summaries have been based on Zadeh's fuzzy sets, which represent uncertain data. The main aim of the paper is to enhance and generalize the Yager's approach to linguistic summarization of data. This enhancement is based on interval-valued fuzzy sets. The newly presented methods enable handling fuzzy concepts, whose membership degrees are not given by real values explicitly, but are approximated by intervals in [0,1]. From now on, the Yager's approach can be viewed as a special case of the method presented in this paper. Finally, illustrative examples are presented.
Źródło:: Control and Cybernetics; 2006, 35, 2; 415-443
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Application of active region model for detection of liver cancer
Autorzy:: Tracz, P.
Szczepaniak, P. S.
Tomczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/333287.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: węże
czynny region
medyczna segmentacja obrazu
snakes
active region
medical image segmentation
Opis:: Active region models are methods for automatic image segmentation. The models are able to detect shapes of irregular borders. In the present paper, the method is examined using medical images of liver changed locally by cancer cells.
Źródło:: Journal of Medical Informatics & Technologies; 2011, 17; 263-268
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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