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    Wyświetlanie 1-6 z 6
    Tytuł:
    Potencjalne możliwości integracji usług logistycznych realizowanych na potrzeby poczty i rynku TSL
    Potential Possibilities of Integration Between the Logistic Services Provided for the Benefit of the Post and the TSL Market
    Autorzy:
    Wróbel, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/590880.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Ekonomiczny w Katowicach
    Tematy:
    Rynek usług pocztowych
    Usługi logistyczne
    Usługi pocztowe
    Logistic services
    Postal services
    Postal services market
    Opis:
    The article discusses place and importance of the postal logistic system in the aspect of both internal and external factors determining role currently performed by the system while performing logistic services for the needs of the post as well as on the market of the TSL services. Moreover, directions of changes that condition farther perspectives of pallet transportation to the external customer increase which are to be introduced in the system have been presented. Potential possibilities of use of the postal logistic chain have been pointed out in the context of integration of both not-full-truck as well as full-truck pallet loads transportation on both domestic and European markets, with the transit offer on the territory of Poland.
    Źródło:
    Studia Ekonomiczne; 2013, 143; 418-432
    2083-8611
    Pojawia się w:
    Studia Ekonomiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    REWALORYZACJA XVII-WIECZNEGO PARKU W TRZEBINACH KOŁO LESZNA
    THE REVALORISATION OF THE SEVENTEENTH-CENTURY PARK IN TRZEBINY NEAR LESZNO
    Autorzy:
    Wróbel, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/537648.pdf
    Data publikacji:
    2003
    Wydawca:
    Narodowy Instytut Dziedzictwa
    Tematy:
    Trzebiny
    park w Trzebinach
    Zespół pałacowo-parkowy
    Rekonstrukcja parku
    Opis:
    Trzebiny, a village of mediaeval origin (mentioned in 1360) and Polish-German lineage, is located in south-western Greater Poland, in the commune of Święciechowa, 9 kilometres to the west of Leszno. From the 1920s to 1945 Trzebiny lay in the western borderlands of the Republic, and during the inter-war period it adjoined the German state frontier. The owners of the landed estates, the von Lessen family, left Trzebiny for the Reich, fearing the approaching front. The post-1945 influx of a new population became one the reasons for the rapid devastation of the abandoned palace and park. The reconstruction of the historical complex, initiated in 1982, was completed in 1987 – a period which we describe as stage I. It also encompasses the garden premises featured in the regular part of the park and the park sculptures, damaged during the post-war period and reconstructed in 1993. Stage II, which took place in 1996-1999 and 2001-2003, supplemented the plants and formed and enlarged the rows of trees. A reconstructed fountain, a copy of Bernini’s Triton Drinking from a Corncupia, was placed in the southern part of the regular section of the park. In the landscape part of the park the tree crowns were pruned, dry branches and boughs were removed, and the tension lines were repaired. At the same time, an archeological reconnaissance of the terrain discovered relics of prehistorical settlements (the Lusatian culture) as well as settlements from the Late Middle Ages and the modern era. A mediaeval tower-manor house was found on the spot of the present-day “Four seasons” bower. Relics of a seventeenth - eighteenth-century residential development were registered to the south of the palace, near the historical complex of ponds. Flagstones, visible in the Duncker lithograph, were disclosed during plantings carried out in the 1990s in the south-western part of the park. The palace-park complex is located in the valley of the Krzycki Rift. One of the fragments of the old river-valley was transformed into a pond. Melchior Gurowski, who commissioned the construction of the “old manor” completed in 1680-1690, is considered to have been the builder of the object (mentioned in 1709), while the project is ascribed to an architect from the circle of Jan Catenazzi. The park surrounding the manor house was described as an Italian garden. The successive owners, members of the Nieżychowski family, rebuilt the park in about the middle of the eighteenth century. This is the period of the origin of the stone sculptures whose fragments were discovered in the park. After 1860, axial elements of the classical Italian garden became obliterated in the course of work conducted by the Von Leesens. As a result, the garden assumed the shape of a landscape park embellished with sculptures and flower beds. The park, whose area totals 6,1 hectars, contains trees of assorted ages, the most ancient being about 200 years-old. The varied species in the ground cover include lilies of the valley, goldilock and periwinkle. Squirrels are among the permanent residents of the park, and tree crowns offer nesting to black woodpeckers, nightingales, wood pigeons and the tawny owl. The regular layout of the park was recreated in the area of the presumed Italian garden, and nineteenth- century stone statues were situated in place of the Baroque originals, with an obelisk featuring the von Leesen coat of arms in the centre. The borderlines of the regular part of the park were enclosed by a row of hornbeam and stone pedestals scattered symmetrically on both sides. The reconstruction of the park is being continued up to this day. At present, chief tasks include cleaning the pond, rendering the culverts patent, and the construction of a river bar in the Krzycki Rift. The park in Trzebiany attracts numerous visitors and is a special favourite of young couples who take souvenir photographs against its background. Once a year, at the beginning of December, a cross country race is arranged for children under the motto: “running amidst historical monuments”.
    Źródło:
    Ochrona Zabytków; 2003, 3-4; 127-136
    0029-8247
    Pojawia się w:
    Ochrona Zabytków
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of Values of Diffusion Coefficient on Results of Diffusion Modelling Driven by Chemical Potential Gradien
    Autorzy:
    Wróbel, Marek
    Burbelko, Andriy
    Powiązania:
    https://bibliotekanauki.pl/articles/2174626.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry industry
    application of information technology
    diffusion modelling
    Calphad method
    chemical potential
    diffusion coefficient
    przemysł odlewniczy
    zastosowanie technologii informatycznej
    modelowanie dyfuzyjne
    metoda Calphad
    potencjał chemiczny
    współczynnik dyfuzji
    Opis:
    In the paper critical role of including the right material parameters, as input values for computer modelling, is stressed. The presented model of diffusion, based on chemical potential gradient, in order to perform calculations, requires a parameter called mobility, which can be calculated using the diffusion coefficient. When analysing the diffusion problem, it is a common practice to assume the diffusion coefficient to be a constant within the range of temperature and chemical composition considered. By doing so the calculations are considerably simplified at the cost of the accuracy of the results. In order to make a reasoned decision, whether this simplification is desirable for particular systems and conditions, its impact on the accuracy of calculations needs to be assessed. The paper presents such evaluation by comparing results of modelling with a constant value of diffusion coefficient to results where the dependency of Di on temperature, chemical composition or both are added. The results show how a given deviation of diffusivity is correlated with the change in the final results. Simulations were performed in a single dimension for the FCC phase in Fe-C, Fe-Si and Fe-Mn systems. Different initial compositions and temperature profiles were used.
    Źródło:
    Archives of Foundry Engineering; 2022, 22, 3; 81--90
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Diffusion Model of Binary Systems Controlled by Chemical Potential Gradient
    Autorzy:
    Wróbel, Marek
    Burbelko, Andriy
    Powiązania:
    https://bibliotekanauki.pl/articles/2105206.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    diffusion
    modelling
    CALPHAD
    chemical potential
    Opis:
    The paper presents a model of diffusion in a single phase with chemical potential gradient as the driving force of the process. Fick’s laws are strictly empirical and the assumption that the concentration gradients are the driving forces of diffusion is far from precise. Instead, the gradient of chemical potential μi of component i is the real driving force. The matter of governing equations of models that incorporate this approach will be raised and discussed in this article. One of more important features is the ability to acquire results where diffusion against the concentration gradient may occur. The presented model uses the Finite Difference Method (FDM) and employs the CALPHAD method to obtain chemical potentials. The calculations of chemical potential are carried out for instant conditions – temperature and composition – in the entire task domain by Thermo-Calc via a TQ-Interface. Then the heterogeneity of chemical potentials is translated into mass transfer for each individual element. Calculations of two modelling tasks for one-dimension diffusion field were carried out. First: isothermal conditions with linear initial composition distribution and second: constant temperature gradient with uniform chemical composition in the specimen. Results for two binary solid solutions: Fe-C and Fe-Si, in the FCC phase for the given tasks will be presented. Modelling allows us to estimate the time needed to reach a desired state in a particular equilibrium or quasi-equilibrium state. It also shows the path of the composition change during the process. This can be used to determine whether the system at some point is getting close to the formation of another phase due to significant deviation from its initial conditions.
    Źródło:
    Journal of Casting & Materials Engineering; 2022, 6, 2; 39--44
    2543-9901
    Pojawia się w:
    Journal of Casting & Materials Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effects of innovative solutions implemented in the supply chain of the public postal operator in Poland
    Konsekwencje wdrożenia innowacyjnych rozwiązań do łańcucha dostaw polskiego operatora pocz-towego
    Autorzy:
    Gądek-Hawlena, Teresa
    Wróbel, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/541245.pdf
    Data publikacji:
    2015
    Wydawca:
    Wyższa Szkoła Bankowa we Wrocławiu
    Tematy:
    innovation,
    public postal operator,
    postal logistic chain
    JEL O32,
    L87
    innowacje,
    operator pocztowy,
    łańcuch dostaw poczty
    Opis:
    Transformations on the postal market that have occurred since the end of the 1990s extorted Poczta Polska S.A. from implementation of changes in many areas of its activity. The purpose of these transformations is to adapt to new legal requirements, technical and technological changes and to cope with the growing competition within the postal market. Factors playing an essential role with regard to the above are initiatives taken and innovations implemented in the postal logistic chain, without which the postal operator could not operate and which contribute to the diversification of provided services. The purpose of this article is to present and assess the changes in the postal created and implemented by Poczta Polska.
    Przeobrażenia rynku pocztowego, które następują od początku lat dziewięćdziesiątych w Pol-sce wymusiły na Poczcie Polskiej S.A. dokonanie wielu zmian w różnych dziedzinach jej dzia-łalności. Celem tych przekształceń jest dostosowanie się do nowych wymogów prawnych oraz innowacji wprowadzonych w pocztowym łańcuchu dostaw bez których pocztowy opera-tor nie mógłby funkcjonować, oraz które przyczyniły się do dywersyfikacji świadczonych usług. Celem artykułu jest prezentacja oraz ocena zmian, które zostały stworzone oraz wdro-żone przez Pocztę Polską S.A.
    Źródło:
    Zeszyty Naukowe Wyższej Szkoły Bankowej we Wrocławiu; 2015, Sustainable TSL; 35-44
    1643-7772
    Pojawia się w:
    Zeszyty Naukowe Wyższej Szkoły Bankowej we Wrocławiu
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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