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Wyświetlanie 1-15 z 89
Tytuł:
Application of the Pearsons distributions for characterizing the surface roughness of machine components
Zastosowanie rozkładów Pearsona do charakteryzowania chropowatości powierzchni elementów maszyn
Autorzy:
Wiśniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/190244.pdf
Data publikacji:
2010
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
rozkład prawdopodobieństwa
rozkłady Pearsona
chropowatość powierzchni
probability distribution
Pearson’s distributions
surface roughness
Opis:
The family of the Pearson's distributions of probability has been presented. These distributions have been defined as the functions of the asymmetry and concentration of the random variable, i.e. the dimensionless skewness parameter Sk and the dimensionless kurtosis parameter Ku. The probability distributions of the seven Pearson’s distributions have been given. The connecting point of these distributions is a normal one. The results of the measurements of the surface roughness of a number of the unworn and worn machine elements have been presented, for which the Pearson’s analysis has been applied.
Przedstawiona została rodzina rozkładów Pearsona. Rozkłady te zostały zdefiniowane jako funkcje współczynników asymetrii i skupienia rozkładu zmiennej losowej, tj. bezwymiarowych parametrów skośności Sk oraz kurtozy Ku. Podano gęstości prawdopodobieństwa dla siedmiu typów rozkładów Pearsona z punktem łączącym, będącym rozkładem normalnym. Przedstawiono wyniki pomiarów chropowatości powierzchni dla zestawu niezużytych i zużytych elementów maszyn, dla których przeprowadzono analizy zgodności według systemu Pearsona.
Źródło:
Tribologia; 2010, 6; 229-236
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applying artificial intelligence algorithms in MOBA games
Autorzy:
Wiśniewski, M.
Niewiadomski, A.
Powiązania:
https://bibliotekanauki.pl/articles/92952.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
multiplayer online battle arena
MOBA
artificial intelligence
AI
genetic algorithm
GA
computer game
computer game agents
bots
Opis:
Multiplayer Online Battle Arena games focus mainly on struggles between two teams of players. An increasing level of cyberbullying [1] discourages new players from the game and they often chose a different option, that is, a match against opponents controlled by the computer. The behavior of artificial foes can be dynamically fitted to user’s needs, in particular with regard to the difficulty of the game. In this paper we explore different approaches to provide an intelligent behavior of bots basing on more human-like combat predictions rather than instant, scripted behaviors.
Źródło:
Studia Informatica : systems and information technology; 2016, 1-2(20); 53-64
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reengineering as a method of improving the efficiency of logistics processes in the public administration organizations
Autorzy:
Rostek, K.
Wiśniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/409435.pdf
Data publikacji:
2011
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
logistyka
proces
proces modelowania
zarządzanie
process management
logistics
process
process modelling
process analysis
reengineering process
Opis:
The paper attempts to demonstrate the role and importance of process modeling and reengineering logistics processes in the selected public administration organization. First, it presents the characteristics and selected rules of operation in the organization of public administration organizations in Poland. Next, it describes the concept of a systemic approach in management and reengineering idea, seen as structural, organizational and technical reconstruction of processes, which serves the achievement of improving their efficiency. Practical principles of modelling, analysis and reengineering processes are presented for example of selected logistic process in public administration organizations.
Źródło:
Research in Logistics & Production; 2011, 1, 3; 151-162
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of phenols from aqueous solutions with solvating extractants
Autorzy:
Regel-Rosocka, M.
Wiśniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/779297.pdf
Data publikacji:
2010
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ekstrakcja
rozbiórka
fenole
Cyanex 923
alkilen węglanów
rozpuszczanie ekstrahentów
extraction
stripping
phenols
alkylene carbonates
solvating extractants
Opis:
The removal of selected phenols (phenol, 4-methoxyphenol, 4-fluorophenol, 4-nitrophenol, 4-methylphenol, 4-chlorophenol, 2,4-dichlorophenol) from aqueous streams by liquid-liquid extraction is studied. Butylene and propylene carbonate – are used as green extractants. They permit to remove almost 100% of the examined phenols from feed solutions of phenol concentration about 20 g/dm3. Additionally, stripping of phenols from loaded organic phases is carried out with NaOH. The results of extraction parameters for alkylene carbonates (extraction efficency and distribution ratio) are compared with commercial solvating extractant – Cyanex 923.
Źródło:
Polish Journal of Chemical Technology; 2010, 12, 3; 19-23
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic detection and classification of phoneme repetitions using HTK toolkit
Autorzy:
Wiśniewski, M.
Kuniszyk-Jóźkowiak, W.
Powiązania:
https://bibliotekanauki.pl/articles/333371.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
rozpoznanie
mowa
zaburzenia
HMM
recognition
speech
disorders
Opis:
The therapy of stuttering people is based on a proper selection of texts and then on a practice of their articulation by reading or narration. The texts are chosen on the basis of kind and intensity of dysfluencies appearing in a speech. Thus there is still a requirement to find effective and objective methods of analysis of dysfluent speech. Hidden Markov models are stochastic models widely used in recognition of any patterns appearing in a signal. In the work a simple monophone system based on the Hidden Markov Model Toolkit was built and tested in the context of detection and classification of phoneme repetitions - a common speech disorder in the Polish language.
Źródło:
Journal of Medical Informatics & Technologies; 2011, 17; 141-147
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic detection of stuttering in a speech
Autorzy:
Wiśniewski, M.
Kuniszyk-Jóźkowiak, W.
Powiązania:
https://bibliotekanauki.pl/articles/334003.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
speech
disorders
recognition
HMM
mowa
zaburzenia
rozpoznawanie
Opis:
In the work authors applied speech recognition techniques to find disfluent events. The recognition system based on the Hidden Markov Model Toolkit was built and tested. The set of context dependent HMM models was trained and used to locate speech disturbances. Authors were not concentrated on specific disfluency type but tried to find any extraneous sounds in a speech signal. Patients read prepared sentences, the system recognized them and then results were compared to manual transcriptions. It allowed the system to be more robust and enabled to find all disfluencies types appearing at word boundaries. Such system can by utilized in many ways, for example like a "preprocessor" that finds strange sounds in a speech to be analyzed or classified by other algorithms later, to evaluate or track therapy process of stuttering people, to evaluate speech fluency by ´normal´ speakers, etc.
Źródło:
Journal of Medical Informatics & Technologies; 2015, 24; 31-37
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization problems in the synthesis of multiple-valued logic networks
Autorzy:
Deniziak, S.
Wiśniewski, M.
Kurczyna, K.
Powiązania:
https://bibliotekanauki.pl/articles/114046.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
multiple-valued logic network
symbolic decomposition
FPGA
logic synthesis
Opis:
The paper discusses some aspects of FPGA-oriented synthesis of multiple-valued logic (MVL) network, i.e. a network of modules connected by multiple-valued signals. MVL networks are built during high-level synthesis, as a source specification of logical systems or during re-synthesis of gate-level circuits. FPGA-oriented synthesis of MVL is based on decomposing modules into smaller ones, each fitting in one logic cell. In this paper, we show that the order, according to which the modules are decomposed, has a great influence on the efficiency of the synthesis. This paper presents the case study which demonstrates the above problem as well as some experimental results and conclusions.
Źródło:
Measurement Automation Monitoring; 2016, 62, 5; 166-168
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis of multiple-valued logic networks for FPGA implementation using developmental genetic programming
Autorzy:
Deniziak, S.
Wiśniewski, M.
Wieczorek, K.
Powiązania:
https://bibliotekanauki.pl/articles/114577.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
multiple-valued functions
FPGA
symbolic synthesis
Opis:
This paper presents a method of FPGA-oriented synthesis of multiple-valued logical networks. A multiple-valued network consists of modules connected by multivalued signals. During synthesis the modules are decomposed into smaller ones. For this purpose the symbolic decomposition is applied. Since the decomposition of modules strongly depends on the encoding of multiple-valued inputs and outputs, the result of synthesis depends on the order, in which the consecutive modules are implemented. Experimental results showed that our approach significantly reduces the cost of implementation.
Źródło:
Measurement Automation Monitoring; 2016, 62, 8; 278-281
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The formation of a pluralistic society and its impact on climate change - implementation of the lifelong learning concept
Autorzy:
Wisniewski, B.M.
Powiązania:
https://bibliotekanauki.pl/articles/2079053.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
pluralism
society
climate change
lifelong learning
learning concept
public policy
Opis:
In this work, the author refers to the own research entitled "Citizens' participation in the creation and implementation of public policy. Electoral participation". The aim of this study was to analyze factors affecting civic participation in the form of participation in general elections. The study gave a reason to look more deeply into the formation of a pluralistic society in the age of climate change and social unrest. In this article, however, the author analyzes the impact of climate change in the process of creating a pluralistic society. The focal point of the paper has to do with the implementation of the Lifelong Learning concept in contemporary society. The aim of this work is to indicate the public authority the need for the more effective methods of activating and educating our society in the fight against climate change.
Źródło:
Oceanologia; 2020, 62, 4PB; 588-592
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods of regeneration of spent pickling solutions from steel treatment plants
Autorzy:
Regel-Rosocka, M.
Cieszyńska, A.
Wiśniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/779977.pdf
Data publikacji:
2007
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
roztwory potrawienne
cynkowanie ogniowe
regeneracja roztworów potrawiennych
kwas solny
cynk
żelazo
spent pickling solutions
hot-dip galvanizing
waste regeneration
hydrochloric acid
zinc(II)
iron
Opis:
Facing the still growing demand for metals, particularly for zinc, the recovery of metals from secondary sources should be considered. Spent pickling solutions can be the source of valuable products such as hydrochloric acid, zinc or iron salts or even metallic zinc. The selection of an efficient, selective and economical method for the regeneration of such solutions is a key issue for hot dip galvanizing plants, especially in reference to strict environmental protection regulations.
Źródło:
Polish Journal of Chemical Technology; 2007, 9, 2; 42-45
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of low molecular organic acids from aqueous solutions with reactive extraction
Autorzy:
Szternel, D.
Regel-Rosocka, M.
Wiśniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/778825.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
reactive extraction
trioctylamine
tributyl phosphate
Cyanex 923
fumaric
succinic
lactic
acetic acids
Opis:
This paper presents investigation on removal of low molecular organic acids (acetic, lactic, succinic and fumaric) from aqueous solutions with reactive extraction. The results specifically show that the extraction efficiency of acids depends on the type of extractant, diluents of the organic phase and the initial pH of the aqueous phase. It is possible to separate succinic or fumaric from lactic and acetic acids with high selectivity with the use of TOA and Aliquat 336, respectively. Increasing the pH of the aqueous phase results in a reduction of fumaric acid extraction efficiency with solvating extractants. This can be explained by the decreasing share of acidic form, whose extraction is favored by these extractants. Efficient extraction of both fumaric acid and fumarate using Aliquat 336 can be explained by the ionic structure of the quaternary ammonium salt, capable of transporting both forms of the acid.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 4; 5-9
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extraction of palladium (II) ions from chloride solutions with phosphonium ionic liquid CyphosŽIL101
Autorzy:
Cieszyńska, A.
Regel-Rosocka, M.
Wiśniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/779877.pdf
Data publikacji:
2007
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ekstrakcja palladu
kwas solny
fosfoniowa ciecz jonowa
ciecz jonowa
extraction of palladium(II)
hydrochloric acid
phosphonium ionic liquids
Opis:
The extraction of palladium(II) from hydrochloric acid solutions of various concentrations in the presence of different amounts of sodium chloride with phosphonium ionic liquid CyphosŽIL101 in toluene was investigated. The extraction of Pd(II) is very effective. The percentage extraction of Pd(II) from 0.1 mol dm-3 HCl solution amounts to 97% with CyphosŽIL101. Both the increase in HCl concentration and the presence of NaCl have a negative influence on the extraction. The extent of extraction from 0.1 mol dm-3 HCl solution in the presence of 0.5 mol dm-3 NaCl is about 80% and from 3 mol dm-3 HCl is lower and amounts to 56%. The extraction of Pd(II) from aqueous 0.1 mol dm-3 HCl and from 0.1 mol dm-3 HCl in the presence of 0.5 mol dm-3 NaCl with this phosphonium ionic liquid is rapid and the equilibrium is achieved after 1 - 2 minutes. The extraction of Pd(II) from aqueous 3 mol dm -3 HCl is slower and the equilibrium is achieved after 5 - 6 minutes.
Źródło:
Polish Journal of Chemical Technology; 2007, 9, 2; 99-101
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computational analysis of Ancylostoma ceylanicum cysteine proteinase
Autorzy:
Baska, P
Wisniewski, M.
Mieszczanek, J.
Wedrychowicz, H.
Powiązania:
https://bibliotekanauki.pl/articles/839012.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
parasitic disease
VAST programme
computational analysis
Ancylostoma ceylanicum
vaccine
parasitology
nematode
cysteine proteinase
animal disease
host-parasite interaction
Opis:
The potential tertiary structure of Ancylostoma ceylanicum cysteine proteinase was obtained by Automatic Program 3D-JIGSAW and used for finding homologues of known structure by VAST program. The results of computational analysis showed the presence of domains recognizing host immunoglobulins. Based on this analysis we suggest that this protein is involved in cleaving of host antibodies and therefore it may be promising vaccine candidate. In this paper we present the computational analysis of parasitic antigen which is very helpful in evaluation of the potential role of this protein.
Źródło:
Annals of Parasitology; 2006, 52, 4
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computational analysis of Ancylostoma ceylanicum cysteine proteinase
Autorzy:
Bąska, P.
Wiśniewski, M.
Mieszczanek, J.
Wędrychowicz, H.
Powiązania:
https://bibliotekanauki.pl/articles/2146344.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
parasitic disease
VAST programme
computational analysis
Ancylostoma ceylanicum
vaccine
parasitology
nematode
cysteine proteinase
animal disease
host-parasite interaction
Opis:
The potential tertiary structure of Ancylostoma ceylanicum cysteine proteinase was obtained by Automatic Program 3D-JIGSAW and used for finding homologues of known structure by VAST program. The results of computational analysis showed the presence of domains recognizing host immunoglobulins. Based on this analysis we suggest that this protein is involved in cleaving of host antibodies and therefore it may be promising vaccine candidate. In this paper we present the computational analysis of parasitic antigen which is very helpful in evaluation of the potential role of this protein.
Źródło:
Wiadomości Parazytologiczne; 2006, 52, 4; 277-281
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quaternary phosphonium salts as effective extractants of zinc(II) and iron(III) ions from acidic pickling solutions
Autorzy:
Marszałkowska, B.
Regel-Rosocka, M.
Nowak, Ł.
Wiśniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/778035.pdf
Data publikacji:
2010
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ekstraktory
cynk(II)
żelazo(III)
czwartorzędowe sole fosfoniowe
kwas chlorowodorowy
solvent extraction
zinc(II)
iron(III)
quaternary phosphonium salts
hydrochloric acid
Opis:
Extraction of zinc(II) and iron(III) from hydrochloric acid solutions using quaternary phosphonium salts, CyphosŽ IL 101, CyphosŽ IL 104, CyphosŽ IL109 and CyphosŽ IL 111 in mixtures with toluene, was studied. Trihexyl(tetradecyl)phosphonium chloride (CyphosŽ IL 101) and trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate (CyphosŽ IL 104) showed the best zinc(II) and iron(III) extraction abilities. After three stages of zinc(II) extraction with CyphosŽ IL 101 and CyphosŽ IL 104 the efficiencies were 100 and 93.6%, respectively. Total iron(III) transport to the organic phase was achieved after two separation stages and amounted to 82.1 and 100% for CyphosŽ IL 101 and CyphosŽ IL 104, respectively. Zinc(II) and iron(III) could be effectively stripped from the loaded organic phases with 0.5 mol dm-3 sulfuric acid. The more hydrophobic the character of the anion type of phosphonium salts, the lower the efficiency of extraction.
Źródło:
Polish Journal of Chemical Technology; 2010, 12, 4; 1-5
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 89

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