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    Wyświetlanie 1-8 z 8
    Tytuł:
    Methodologies of knowledge discovery from data and data mining methods in mechanical engineering
    Autorzy:
    Rogalewicz, M.
    Sika, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/407431.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    knowledge discovery
    data mining methods
    data mining methodology
    Opis:
    The paper contains a review of methodologies of a process of knowledge discovery from data and methods of data exploration (Data Mining), which are the most frequently used in mechanical engineering. The methodologies contain various scenarios of data exploring, while DM methods are used in their scope. The paper shows premises for use of DM methods in industry, as well as their advantages and disadvantages. Development of methodologies of knowledge discovery from data is also presented, along with a classification of the most widespread Data Mining methods, divided by type of realized tasks. The paper is summarized by presentation of selected Data Mining applications in mechanical engineering.
    Źródło:
    Management and Production Engineering Review; 2016, 7, 4; 97-108
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Minimizing Delay Using Dynamic Blocking Expanding Ring Search Technique for Ad Hoc Networks
    Autorzy:
    Mhatre, Kavita
    Khot, Uday
    Powiązania:
    https://bibliotekanauki.pl/articles/1844446.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    AODV
    BERS
    ERS
    BERS+
    DBERS
    MANET
    latency
    energy efficiency
    routes discovery
    Opis:
    Energy and latency are the significant Quality of Service parameters of ad hoc networks. Lower latency and limited energy expenditure of nodes in the ad hoc network contributes to a prolonged lifetime of the network. Reactive protocols determine the route to the destination using a route discovery process which results in increased delay and increased energy expenditure. This paper proposes a new technique of route discovery, Dynamic Blocking Expanded Ring Search (DBERS) which minimizes time delay and energy required for route discovery process. DBERS reduces energy expenditure and time delay occurring in the existing route discovery techniques of reactive protocols. The performance of DBERS is simulated with various network topologies by considering a different number of hop lengths. The analytical results of DBERS are validated through conduction of extensive experiments by simulations that consider topologies with varying hop lengths. The analytical and simulated results of DBERS are evaluated and compared with widely used route discovery techniques such as BERS, BERS+. The comparison of results demonstrates that DBERS provides substantial improvement in time efficiency and also minimizes energy consumption.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 4; 723-728
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrating expression data and genomic sequences to investigate transcriptional regulation in barley in response to abiotic stress
    Autorzy:
    Delavari, A.
    Zinati, Z.
    Sazegari, S.
    Tahmasebi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2096361.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    barley
    abiotic stress
    transcriptomics analysis
    motif discovery
    motif enrichment
    regulatory gene
    set
    Opis:
    Abiotic stress responses are regulated critically at the transcriptional level. Clarifying the intricate mechanisms that regulate gene expression in response to abiotic stress is crucial and challenging. For this purpose, the factors that regulate gene expression and their binding sites in DNA should be determined. By using bioinformatics tools, the differentially expressed probe sets were studied. A meta-analysis of transcriptomic responses to several abiotic stresses in barley was performed. Motif enrichments revealed that AP2/ERF (APETALA2/Ethylene-Responsive Factor) has the most frequent binding sites. We found that the bHLH transcription factor family has the highest number of transcription factor members. Moreover, network construction revealed that AP2 has the highest number of connections with other genes, which indicates its critical role in abiotic stress responses. The present research further predicted 49 miRNAs belonging to 23 miRNA families. This study identified the probable conserved and enriched motifs, which might have a role in the regulation of differentially expressed genes under abiotic stresses. In addition to shedding light on gene expression regulation, a toolbox of available promoters for genetic engineering of crop plants under such abiotic stresses was developed.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 1; 21-32
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rewolucje naukowe a problem obiektywności naukowej wiedzy
    Scientific revolutions and the problem of objectivity of scientifi c knowledge
    Autorzy:
    Sady, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/577460.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    obiektywność
    odkrycie naukowe
    rozwój wiedzy
    rewolucje naukowe
    objectivity
    scientific discovery
    growth of knowledge
    scientific revolutions
    Opis:
    Jeśli przez „wiedzę obiektywną” rozumiemy zbiór twierdzeń w sposób jedno-jednoznaczny odwzorowujący rzeczywistość, to poglądy naukowe obiektywne nie są. Jednak rozwój naukowych poglądów na świat jest całkowicie niezależny od osobistych pragnień i lęków badaczy, a także od interesów grupowych samych naukowców bądź zatrudniających ich organizacji. O tym rozwoju decydują: wypracowany kolektywnie zbiór czynnych założeń, stanowiący punkt wyjścia badań, obiektywne – przy tych założeniach – wyniki eksperymentów oraz obiektywne prawa logiki. Ilustruję to krótką opowieścią o genezie pierwszych kwantowych modeli atomów.
    If by “objective knowledge” we mean a set of theorems that are ono-to-one representation of reality, then scientifi c views are not objective. However, the growth of scientifi c views of the world is completely independent of personal desires and fears of researchers, as well as of group interests of scientists themselves or organizations that employ them. This growth is determined by: (1) collectively developed set of active assumptions, which is the starting point of research, (2) objective – under these assumptions – results of experiments and (3) objective laws of logic. I illustrate this by a short story about the genesis of the fi rst quantum models of atoms.
    Źródło:
    Zagadnienia Naukoznawstwa; 2015, 51, 2(204); 125-136
    0044-1619
    Pojawia się w:
    Zagadnienia Naukoznawstwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A wavelet-based approach for business protocol discovery of web services from log files
    Autorzy:
    Moudjari, A.
    Kezzouli, I.
    Talbi, H.
    Draa, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/201169.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    business protocol discovery
    wavelets
    log files
    denoising
    dimension reduction
    protokół biznesowy
    falki
    pliki dziennika
    redukcja wymiarów
    Opis:
    Recently, business protocol discovery has taken more attention in the field of web services. This activity permits a better description of the web service by giving information about its dynamics. The latter is not supported by theWSDL language which concerns only the static part. The problem is that the only information available to construct the dynamic part is the set of log files saving the runtime interaction of the web service with its clients. In this paper, a new approach based on the Discrete Wavelet Transformation (DWT) is proposed to discover the business protocol of web services. The DWT allows reducing the problem space while preserving essential information. It also overcomes the problem of noise in the log files. The proposed approach has been validated using artificially-generated log files.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 3; 535-546
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Virtual screening strategies in drug design – methods and applications
    Autorzy:
    Bielska, E.
    Lucas, X.
    Czerwoniec, A.
    Kasprzak, J.M.
    Kaminska, K.H.
    Bujnicki, J.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/80139.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    virtual screening
    drug design method
    application
    drug discovery
    similarity search
    drug development
    high-throughput screening
    medical chemistry
    chemical compound
    experimental approach
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2011, 92, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the border between biology, mathematics and computer science
    Autorzy:
    Formanowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/80778.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mathematics
    computer science
    biology
    computational biology
    bioinformatics
    algorithm
    biological process
    biological structure
    biological discovery
    genetic code
    genome
    protein 3D structure
    genetic information
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2011, 92, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ARIES : Development of Accelerator Technology in Europe 2017-2020 : Global and Local Consequences
    Autorzy:
    Romaniuk, R. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/226915.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    renewing large research infrastructures
    maintenance of large research infrastructures
    research efforts in Europe
    accelerator science and technology
    large research infrastructures
    research experiments of discovery class
    research and technical innovations in Europe
    technology transfer issues to industry
    social implications
    Opis:
    The article describes chosen, yet key parts of newly established European, infrastructural research and development project ARIES (2017-2020) - Accelerator Research and Innovation for European Science and Society, to be realized inside the framework of the H2020 programme. Two institutions from Poland participate in ARIES – these are Warsaw University of Technology and Institute of Nuclear Chemistry and Technology. ARIES is a topical continuation of the previous infrastructural accelerator projects realized uninterruptedly since 2003 – FP6 CARE – Coordinated Accelerator Research in Europe and FP7 TIARA – Test Infrastructure and Accelerator Research Area, EuCARD – European Coordination for Accelerator Research and Development, and EuCARD2. The article is simultaneously a part of a series of papers concerning the participation of Polish doctoral students and young researchers, especially from the Warsaw University of Technology, in large European and world experiments of the discovery class, including building large research infrastructures like: FLASH and EXFEL, ESS, ITER and DEMO, IFMIF, but also satellites built by the ESA, etc. ARIES embraces, among others, the following subjects: energy efficiency and management, cost lowering, miniaturization and ultra-high field gradients, promotion innovation, industrial applications, societal implications, new materials and components, new methods of particles acceleration including laser-plasmaparticles interaction, and building new generations of systems.
    Źródło:
    International Journal of Electronics and Telecommunications; 2017, 63, 1; 109-117
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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