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    Tytuł:
    Service-oriented cyberspace for improving cybersecurity
    Autorzy:
    Krawczyk, Henryk
    Powiązania:
    https://bibliotekanauki.pl/articles/1955262.pdf
    Data publikacji:
    2022-02-04
    Wydawca:
    Politechnika Gdańska
    Tematy:
    cyberspace
    key technologies
    smart services
    cybersecurity
    policy and strategies
    Opis:
    The paper presents a cyberspace model where different categories of IT services are offered and used largely. A general cybersecurity policy is considered and the corresponding cybersecurity strategies are shown. The role of such technologies as: Internet of Things, Cloud Computing and Big Data is analyzed in order to improve the cybersecurity of a cyberspace. A new kind of service oriented cyberspace is proposed and its main properties are emphasized. Two simple examples of such cyberspaces are given and briefly discussed.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2019, 23, 2; 141-157
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Smart shop services for building customer-oriented scenarios
    Autorzy:
    Krawczyk, Henryk
    Sobecki, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/1954604.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Gdańska
    Tematy:
    electronic commerce
    categories of shop services
    knowledge sources
    smart services
    customer-oriented scenarios
    integrated platforms
    handel elektroniczny
    kategorie usług sklepowych
    źródła wiedzy
    usługi inteligentne
    scenariusze zorientowane na klienta
    zintegrowane platformy
    Opis:
    The shops of today mostly support the customer by offering him or her products based on basic relationships between products viewed or ordered by users with similar tastes. This common approach may fail in many cases especially when the user does not have sufficient knowledge about the market, or when he or she wants to build a set of products in more than one shop. New categories of smart shop services are proposed in order to execute such customer-oriented scenarios where recommended products do meet mutual dependencies with products previously ordered by the customer. An attempt is made to collect additional information about the behavior of users (from past and current contexts) and represent it in a targeted graph called the customer-oriented scenario. Four types of such scenarios are distinguished depending on how many shops have been visited by the user before buying the expected products and how many products the user wants to buy. Moreover, the proposed scenario model provides the possibility of showing which services had been used by the user before the selection was made. Customer-oriented scenarios may be created post factum based on event data logs or before the user will use the shop, which means that it can be arranged which information, knowledge sources (internal or external), products or categories should be suggested in some context of the user's decision. The possibility of leveraging additional smart services into a traditional trading platform may help users, especially when they want to implement a complex scenario and order many products with mutual dependencies or in a situation when the user wants to understand the market before buying something. Using internal and external services allows creating a network for distributing knowledge focused on the actual customer context in a shop.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2020, 24, 3; 221-242
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bridge of Knowledge: an Internet platform for R2R and R2B transfer of knowledge and promotion of cooperation
    Autorzy:
    Krawczyk, Henryk
    Lubomski, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/1954611.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Gdańska
    Tematy:
    research to research cooperation
    knowlegde to buisness transfer
    golden rectangle
    science gateways
    knowlegde platforms
    współpraca badawcza
    transfer biznesu
    złoty prostokąt
    brama naukowa
    platforma wiedzy
    Opis:
    Currently, the European Commission puts emphasis on supporting collaboration between universities and business. There are many possible ways to create a strong relationship between both these parties. Positive results of such cooperation lead to increased competitiveness of the global market and, in consequence, bring significant growth of innovation. The cooperation between research-to-research (R2R) and research-to-business (R2B) is analysed. The paper shows how the IT technology can be used to support and stimulate it. In our University we proposed a two-step strategy. Firstly, we tried to improve collaboration among scientists in order to develop R2R activities. Secondly, we focused on R2B projects that stimulate promising scientists to take part in various innovative activities carried out in cooperation with the industry representatives. Based on some well-known good practices a special Internet platform was designed and implemented to support such a strategy. Its name is the “Bridge of Knowledge”. The platform architecture, its functionality and some other aspects of the development process are described. The platform was developed and introduced at the Gdańsk University of Technology. It has been available online for nearly 2 years now and it has been attracting increasing numbersof new visitors and returning users. Several use cases of cooperation between R2R and R2Bwere analysed and described with the use of advanced analytic tools and on the basis of the organisation’s resources. The idea of the Bridge of Knowledge platform is to gather and share resources not only from one university. The architecture of the platform focuses on a wide and easy interoperability. Other universities can share their resources without any additional cost.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2020, 24, 1; 63-72
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mashup approaches for improving service oriented business scenarios
    Autorzy:
    Krawczyk, Henryk
    Parsamyan, Narek
    Powiązania:
    https://bibliotekanauki.pl/articles/1955266.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska
    Tematy:
    BPMN approach
    complex IT services
    mashup technology
    general mashup architecture
    service-oriented scenarios
    Opis:
    Two kinds of business scenarios are considered: application- and service-oriented.It is shown that the former are more flexible and easier reconfigurable for both traditional (human-oriented) and IT services. Moreover, complex IT services can be created by simple IT services using the modern mashup technology. It is the reason why such business scenarios can be modeled by BPMN in much easier ways. A simple example of a supply chain of a sales company is considered and the available advantages of such technologies are emphasized in the paper.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2018, 22, 4; 321--332
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wisdom quotient as a basic index of human cognitive categories and wisdom attributes
    Autorzy:
    Krawczyk, Henryk
    Targowski, Andrew
    Powiązania:
    https://bibliotekanauki.pl/articles/2197551.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Gdańska
    Tematy:
    human wisdom definitions
    cognitive levels
    wisdom attributes
    relation analysis
    intelligence and wisdom quotients
    success quotients
    Opis:
    Various understanding of human wisdom is discussed, from common-sense approaches through cognitive considerations to scientific analysis. The main cognitive levels are considered such as: filtering the available information about the appearing situation, comprehensive assessment of the situation, awareness of the consequences about the existing situation and reaction to the existing situation. The basic set of essential attributes like knowledge, skills, and inspirations are also analyzed. Based on these considerations some relations between cognitive levels and wisdom attributes are presented. It leads to a definition of the wisdom quotient which is a representative measure of human wisdom behaviors. Some representative cases of such behavior are specified and discussed as human attitudes. It is also shown how computer science approaches can support calculation of some wisdom indexes and, in consequence, allow understanding human wisdom.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2022, 26, 1; 48-74
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preferable Ways of Decision-Making in IT Teams
    Autorzy:
    Krawczyk-Bryłka, Beata
    Krawczyk, Henryk
    Powiązania:
    https://bibliotekanauki.pl/articles/375993.pdf
    Data publikacji:
    2019
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    software development
    IT teams
    virtual collaboration
    cloud computing
    decision-making
    Opis:
    Software development team collaboration requires various decisions regarding essential aspects of a project’s progress. General and particular decision-making models are considered, and their main aspects such as team types, problem solving categories, and decision-making ways are analyzed. The research concerns representative groups of IT specialists and their preferences in decision-making are investigated. Four possible cases were tested: hierarchical choice (by leader) team members’ choice (team consensus or voting) and external expert impact. It allows one to show some differences in the behaviors of both traditional and virtual teams.
    Źródło:
    Decision Making in Manufacturing and Services; 2019, 13, 1-2; 37-51
    1896-8325
    2300-7087
    Pojawia się w:
    Decision Making in Manufacturing and Services
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Meteoryty – najstarszy materiał do wytwarzania narzędzi żelaznych?
    Meteorites – the oldest material for fabricating iron artifacts?
    Autorzy:
    Socha, Krzysztof
    Suliga, Ireneusz
    Krawczyk, Henryk
    Powiązania:
    https://bibliotekanauki.pl/articles/1033010.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Meteorytowe
    Tematy:
    functional products from meteorites
    iron meteorites
    meteorites
    plastic deformation
    Opis:
    This article describes the results of metallurgical studies of three experiments on hammering products made of iron meteorites. The objective qualification criteria of these materials created by plastic deformation were defined: carburization in smithing hearth, creating martensitic structure and the existence of small-martensitic weld and increased content of nickel.
    Źródło:
    Acta Societatis Metheoriticae Polonorum; 2014, 5; 104-114
    2080-5497
    Pojawia się w:
    Acta Societatis Metheoriticae Polonorum
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cost-effectiveness analysis and cost-benefit analysis for X-type zeolite production from fly ash
    Analiza efektywności kosztowej i ekonomicznej produkcji zeolitów typu X z popiołów lotnych
    Autorzy:
    Białecka, Barbara
    Cempa, Magdalena
    Adamczyk, Zdzisław
    Świnder, Henryk
    Krawczyk, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/2173852.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
    Tematy:
    cost-benefit analysis
    CBA
    cost-effectiveness analysis
    dynamic generation cost
    DGC
    zeolite
    fly ash
    analiza kosztów
    analiza korzyści
    ocena efektywności kosztowej
    dynamiczny koszt jednostkowy
    zeolit
    popiół lotny
    Opis:
    This paper presents the results of a cost-effectiveness analysis and a cost-benefit analysis for the production of X-type zeolites from fly ash. Positive results of the laboratory tests on the quality of zeolites derived from fly ash initiated a cost analysis on the production of this materials on an industrial scale. The cost-effectiveness analysis was conducted using the dynamic generation cost indicator (DGC ). The calculated DGC expresses the technical manufacturing cost of 1 Mg of synthetic zeolites. Whereas the cost-benefit analysis (CBA) was completed using the economic net present value (ENP V) and the economic internal rate of return (EIRR ) indicators. The calculated unit technical cost of producing 1 Mg of zeolites using an installation consisting of five reactors with a capacity of 25 m3 each is 211 EUR and is lower than the current market price of this product, including transportation costs. This proves the financial viability of the investment. The calculations of the economic efficiency of the installation (CBA method) show that it is fully economically viable to operate and use the products from a social point of view.
    W artykule zostały przedstawione wyniki oceny efektywności kosztowej i ekonomicznej produkcji zeolitów typu X z popiołów lotnych. Pozytywne wyniki badań laboratoryjnych dotyczące jakości materiału zeolitowego otrzymanego z popiołów lotnych były podstawą do przeprowadzenia oceny kosztów ich produkcji w skali przemysłowej. Ocenę efektywności kosztowej przeprowadzono przy wykorzystaniu dynamicznego kosztu jednostkowego (DGC ). Obliczony wskaźnik DGC wyraża techniczny koszt produkcji 1 Mg zeolitów syntetycznych. Natomiast analiza kosztów i korzyści (CBA) polegała na obliczeniu ekonomicznej bieżącej wartości netto (ENP V) i ekonomicznej wewnętrznej stopy zwrotu (EIRR). Obliczony jednostkowy techniczny koszt wyprodukowania 1 Mg zeolitów na instalacji składającej się z 5 reaktorów o pojemności 25 m3 każdy wynosi 211 EUR i jest niższy od ceny rynkowej tego produktu, wliczając koszty transportu. Świadczy to o opłacalności finansowej inwestycji. Przeprowadzone obliczenia efektywności ekonomicznej instalacji (metodą CBA) potwierdzają w pełni opłacalność jej eksploatacji i wykorzystania produktów z punktu widzenia społecznego.
    Źródło:
    Gospodarka Surowcami Mineralnymi; 2022, 38, 3; 83--103
    0860-0953
    Pojawia się w:
    Gospodarka Surowcami Mineralnymi
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biopolymer compositions for ecological protection and growth stimulation of plants
    Autorzy:
    Niekraszewicz, Antoni
    Wiśniewska-Wrona, Maria
    Kopania, Ewa
    Orlikowski, Leszek
    Pospieszny, Henryk
    Krawczyk, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/1035390.pdf
    Data publikacji:
    2012
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    biopolymer compositions
    growth stimulation.
    plant protection
    polysaccharides
    Opis:
    Presented herein are investigations in the preparation of an advanced , human-and environmentfriendly plant protection composition based on selected bioactive biopolymers of the polysaccharide family. In the Institute of Biopolymers and Chemical Fibres the biopolymers were prepared and the biological activity of chitosan in the form of salt and gel and of hemicelluloses (galactoglucomannans) and of their compositions was tentatively evaluated by way of plate tests. Estimated was the impact of such preparations upon the stimulation of the germination rate of radish seeds at concentration of 0.1, 0.01 and 0.005% after 72 hours. The efficacy of the preparations was evaluated based on the number of germinated seeds in the green mass of the sprouts and their length in comparison to a reference in water at pH = 7.0. In Research Institute of Horticulture, Skierniewice, Poland the usefulness of selected iopolymer preparations was evaluated as agents to protect decorative plants against some pathogens (on leaves, in soil) such as Phytophtora cryptogea causing decay of shoots and roots. It could be found that the biopolymer compositions applied to the soil provided a much better rooting of chrysanthemum cuttings in a Phytophtora cryptogea - infected soil. The cuttings were growing much faster and the number of infected ones was largely reduced. The usefulness of a number of chitosan formulations was also evaluated for seed pickling. It was found that the formulations exerted a distinctly positive impact upon the germination, growth and health of the seedlings. Laboratory and greenhouse testing was made in the Institute of Plant Protection, Poznań, Poland where the biological activity of some biopolymer compositions was evaluated. A first selection of the biopolymers was done based on an in vitro examination of the impact upon bacteria growth. (Gram negative - Erwinia amylovora and Gram positive Clavibacter ichiganensis ) on agar or agarose plates and upon the generation of necrotic stains on beans and tobacco caused by lucerne mosaic virus and tobacco mosaic virus respectively. It was found that the preparations with original biopolymer concentration had not affected the viruses directly but stimulated the plants’ immunity against the pathogens.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2012, 17; 149-162
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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