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    Wyświetlanie 1-4 z 4
    Tytuł:
    Relacje ekonomiczne w europejskich lancuchach zywnosciowych
    Economic relations in European food chains
    Autorzy:
    Dybowski, G
    Kobuszynska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/880136.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy
    Tematy:
    lancuchy zywnosciowe
    europejskie lancuchy zywnosciowe
    procesy
    firmy
    produkt
    srodki finansowe
    informacja
    transfer technologii
    zarzadzanie
    wspolpraca
    kooperacja
    konkurencyjnosc
    relacje ekonomiczne
    rynek spot
    rynek kasowy zob.rynek spot
    transakcje handlowe
    transakcje powtarzalne
    kontakty formalne
    partycypacja finansowa
    Opis:
    The study presents an analysis of factors influencing the selection, strengthening and consolidation of good economic relations in the European food chains. Four basic types of economic relations have been established, taking the form of transactions and type of management as the main criteria. These include: spot markets, repeated market transactions with the same supplier-recipient, formal written contracts and financial participation. Empirical material has been gathered in the form of questionnaires in 13 European food chains located in 6 EU Member States: Germany, Ireland, Great Britain, Finland, Spain and Poland. Among the examined States, formal relations are most common in Finland and Spain; least common: between farmers processing plants in Ireland. Among the examined food chains most formalised relations are in the beer chain (mainly between processing plants and retail sellers) and pork chain (farmer-processing plant). Chains involving bakery and beef show significantly lower level of formalised relations. The results of the study indicate that the main factors determining the quality of relations between the participants of examined food chains cover: good communication, personal connections and even distribution of competitive power between business partners of the chain. Also the dependence of quality and sustainability of economic relations on the type of product, country and location of the partners in the chain (level) has been identified. No significant dependence of the nature of economic relations against the type of business connection and level of their formalisation has been identified.
    Źródło:
    Zagadnienia Ekonomiki Rolnej; 2009, 1; 38-56
    0044-1600
    2392-3458
    Pojawia się w:
    Zagadnienia Ekonomiki Rolnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Economic relations in European food chains
    Autorzy:
    Dybowski, G.
    Kobuszynska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/878717.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy
    Opis:
    The study presents an analysis of factors influencing the selection, strengthening and consolidation of good economic relations in the European food chains. Four basic types of economic relations have been established, taking the form of transactions and type of management as the main criteria. These include: spot markets, repeated market transactions with the same supplier-recipient, formal written contracts and financial participation. Empirical material has been gathered in the form of questionnaires in 13 European food chains located in 6 EU Member States: Germany, Ireland, Great Britain, Finland, Spain and Poland. Among the examined States, formal relations are most common in Finland and Spain; least common: between farmers-processing plants in Ireland. Among the examined food chains most formalised relations are in the beer chain (mainly between processing plants and retail sellers) and pork chain (farmer-processing plant). Chains involving bakery and beef show significantly lower level of formalised relations. The results of the study indicate that the main factors determining the quality of relations between the participants of examined food chains are: good communication, personal connections and even distribution of competitive power between business partners of the chain. Also the dependence of quality and sustainability of economic relations on the type of product, country and location of the partners in the chain (level) has been identified. No significant dependence of the nature of economic relations against the type of business connection and level of their formalisation has been identified.
    Źródło:
    Zagadnienia Ekonomiki Rolnej; 2010, 1 Dodatek
    0044-1600
    2392-3458
    Pojawia się w:
    Zagadnienia Ekonomiki Rolnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    WC-Co coatings and sinters modified with nano-sized tic microstructure – quantitative evaluation
    Autorzy:
    Myalska, H.
    Dybowski, B.
    Moskal, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/102338.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    coatings
    nanoparticles
    TiC
    WC-Co
    quantitative evaluation
    Opis:
    The different concepts of WC-Co thermally sprayed coatings improvement may be considered and the application of nanoparticles, as the mechanical strengthening addition, is one of them. Nanostructured WC-Co coatings are characterized by higher hardness than the coatings formed from micrometric WC grains; whereas coatings with bimodal distribution of particles reveal greater wear resistance than the coatings obtained exclusively from nano-sized powders. Mixed effect of the matrix reinforcement by nanoparticles and strong fix of the micron-sized WC grains was proposed as a possible reason for enhanced wear resistance of bimodal coatings. In order to obtain a bimodal distribution of particles in the material standard WC-Co (83-17) powder was mixed with nanometric TiC powder (40–100 nm). The amount of TiC in powder mixtures was in the range from 1 to 7 wt.%. The mixtures were deposited on steel substrate using HVAF method and also hot pressed in vacuum. The microstructure of obtained coatings and sinters was quantitatively evaluated. Sinters revealed more homogenous distribution of the nano-sized TiC particles than the coatings. The addition of nano-sized TiC in the case of coatings has led to the decrease of its porosity. The agglomeration of nano-sized TiC particles in the coatings results in the decrease of material’s hardness.
    Źródło:
    Advances in Science and Technology. Research Journal; 2017, 11, 1; 220-231
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of the Method of Separating Graphene from the Growth Substrate on the Quality of the 2D Material Obtained
    Autorzy:
    Dybowski, K.
    Romaniak, G.
    Kula, P.
    Jeziorna, A.
    Kowalczyk, P.
    Atraszkiewicz, R.
    Kołodziejczyk, Ł.
    Nowak, D.
    Zawadzki, P.
    Kucińska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/351974.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    graphene
    polycrystalline graphene
    electrochemical delamination
    chemical etching
    graphene transfer
    Opis:
    This article presents the research results on impact of the method of polycrystalline graphene layers separation from the growth substrate on the obtained carbon material quality. The studies were carried out on graphene sheets obtained by metallurgical method on a liquid metal substrate (HSMG® graphene). The graphene was separated using chemical etching method or the electrochemical delamination method, by separating by means of electrolysis. During electrolysis, hydrogen is emitted on a graphene-covered of cathode (metal growth substrate) as a result of the voltage applied. The graphene layer breaks away from metallic substrate by gas accumulation between them. The results from these separation processes were evaluated by means of different tools, such as SEM, TEM and AFM microscopy as well as Raman Spectroscopy. In summary, the majority of analyses indicate that the graphene obtained as a result of hydrogen delamination possesses higher purity, smaller size and number of defects, its surface is smooth and less developed after the transfer process to the target substrate.
    Źródło:
    Archives of Metallurgy and Materials; 2019, 64, 4; 1321-1326
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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