Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Pedagogiczna Biblioteka Wojewódzka im. Komisji Edukacji Narodowej w Lublinie Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaPedagogiczna Biblioteka Wojewódzka im. Komisji Edukacji Narodowej w Lublinie
Zmień bibliotekę

Wyszukujesz frazę "Bohn, M." wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-5 z 5
    Tytuł:
    Limitations of notation system in centred part alignment accuracy imposed by ISO standard and proposal for an improved methodology
    Autorzy:
    Yan, Y.
    Bohn, M.
    Tematy:
    geometrical product specifications
    part alignment
    datum
    Pokaż więcej
    Wydawca:
    Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
    Powiązania:
    https://bibliotekanauki.pl/articles/99701.pdf  Link otwiera się w nowym oknie
    Opis:
    According to the ISO Geometrical Product Specifications (GPS), centred part alignment with one centred point can be described clearly using technical drawings. There are two main limitations of this standard; Firstly: the uncertainty over use of notations in technical drawings when more than one centred point is applied, and secondly, the use of fixed datum targets to centred points which causes an unstable alignment process. This article suggests a new approach for a functional, explicitly defined notation system of datums and datum systems based on the research of orientation constraints between datums. This new approach simplifies the technical drawing, thereby eliminating notation uncertainties. An improved methodology for a stable alignment process was developed based on physical analysis of the centred part alignment which implements movable datum targets.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Complementing and enhancing definitions of line profile composite tolerance imposed by ISO geometrical product specification
    Autorzy:
    Yan, Y.
    Bohn, M.
    Tematy:
    line profile tolerance
    composite tolerance
    geometrical product specifications
    tolerancing
    dimensioning
    Pokaż więcej
    Wydawca:
    Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
    Powiązania:
    https://bibliotekanauki.pl/articles/100103.pdf  Link otwiera się w nowym oknie
    Opis:
    According to the ISO Geometrical Product Specifications (GPS), if two or more specifications of the same characteristic are to be indicated, they may be combined as a composite tolerance. Therefore there are no definition differences between the single separate tolerance indicators and their composite tolerance, which is different from the ASME standards. Hereby, the definitions of the combined tolerance which specifies the additional location, orientation and form of tolerance zone are not explicitly defined in the current ISO. It restricts the required definitions of tolerance specifications of a component which are often utilized in practice. However, the required definitions cannot be notated in the technical drawings by using the ISO semantics, because the ISO definitions are insufficient. It causes definition gaps and misinterpretations. This paper focuses on developing the definitions of line profile composite tolerance and suggests a new approach for explicitly defined and function-oriented systematology of line profile composite tolerance. This research is based on the analysis of physical behaviour of geometric feature of a component on a theoretical level. Completed and enhanced definitions in an improved systematology for line profile composite tolerance is formulated which fills the definition gaps and eliminates the deficits in ISO GPS.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ageing Behaviour of HTPB Based Rocket Propellant Formulations
    Autorzy:
    Cerri, S.
    Bohn, M. A.
    Menke, K.
    Galfetti, L.
    Tematy:
    solid rocket propellant
    HTPB
    nanoAl
    ageing
    mechanical properties
    Pokaż więcej
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Powiązania:
    https://bibliotekanauki.pl/articles/358902.pdf  Link otwiera się w nowym oknie
    Opis:
    The ageing of HTPB propellant formulations containing nanoAl is investigated. During natural ageing the material undergoes a series of slow physico-chemical degradation reactions. By using accelerated ageing conditions it is possible to simulate the material behaviour at different time-temperature conditions especially focused on the in-service conditions. The mechanical and ageing behaviour of aluminised solid rocket propellants were investigated in terms of uniaxial tensile strength, DMA measurements, impact and friction sensitivity tests, SEM analyses.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Autorzy:
    Corte-Real, Joana
    Winklhofer-Roob, Brigitte
    Poljsak, Borut
    Trebse, Polonca
    Riso, Patrizia
    Bonet, M. Luisa
    Ribot, Joan
    Borel, Patrick
    Roob, Johannes
    Tundis, Rosa
    van Helden, Yvonne
    Landrier, Jean-Francois
    Ruhl, Ralph
    Porrini, Marisa
    Sharoni, Yoav
    Bohn, Torsten
    Milisav, Irina
    Loizzo, Monica Rosa
    Dulińska-Litewka, Joanna
    Wawrzyniak, Agata
    Keijer, Jaap
    Opis:
    Dietary intake and tissue levels of carotenoids have been associated with a reduced risk of several chronic diseases, including cardiovascular diseases, type 2 diabetes, obesity, brain-related diseases and some types of cancer. However, intervention trials with isolated carotenoid supplements have mostly failed to confirm the postulated health benefits. It has thereby been speculated that dosing, matrix and synergistic effects, as well as underlying health and the individual nutritional status plus genetic background do play a role. It appears that our knowledge on carotenoid-mediated health benefits may still be incomplete, as the underlying mechanisms of action are poorly understood in relation to human relevance. Antioxidant mechanisms – direct or via transcription factors such as NRF2 and NF-κB – and activation of nuclear hormone receptor pathways such as of RAR, RXR or also PPARs, via carotenoid metabolites, are the basic principles which we try to connect with carotenoid-transmitted health benefits as exemplified with described common diseases including obesity/diabetes and cancer. Depending on the targeted diseases, single or multiple mechanisms of actions may play a role. In this review and position paper, we try to highlight our present knowledge on carotenoid metabolism and mechanisms translatable into health benefits related to several chronic diseases.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
      Wyświetlanie 1-5 z 5

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies