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    Wyświetlanie 1-8 z 8
    Tytuł:
    Taguchi Approach to Tribological Behaviour of Chopped Carbon Fiber-Reinforced Epoxy Composite Materials
    Autorzy:
    Ozsoy, N.
    Ozsoy, M.
    Mimaroglu, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1047489.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Qk
    07.05.Fb
    Opis:
    Chopped carbon fiber-reinforced epoxy composites were fabricated and tested for tribological behaviour. Wear behaviour of composites was studied using pin-on-disc wear tester device. The design of experiment, using Taguchi method, was employed to analyse the results. Signal to noise ratio and analysis of variance (ANOVA) were used to determine the influence of parameters on the wear rate and coefficient of friction.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 846-848
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spatial Resolution Test of a Beam Profile Monitoring System for the Double Electrostatic Ion Storage Ring
    Autorzy:
    Das, S.
    Källberg, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1195610.pdf
    Data publikacji:
    2014-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    07.05.Pj
    07.77.Ka
    07.05.Fb
    Opis:
    A beam profile monitoring system based on the imaging of low energy electrons created when the ion beam impinges on a metal plate was built to monitor the beam profile and to cover the wide range of beam intensities and energies for the DESIREE (Double ElectroStatic Ion Ring ExpEriment) beam line diagnostics. The spatial resolution of the system was tested with different beams of various energies and was found to be around 2 mm. A significant steering effect on the ion beam before hitting the metallic foil was observed at low energies.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 1; 13-17
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Parameters on Dry Sliding of Chopped Bamboo Reinforced Epoxy Composites Based on the Taguchi Method
    Autorzy:
    Ozsoy, N.
    Ozsoy, M.
    Mimaroglu, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1191719.pdf
    Data publikacji:
    2016-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Qk
    07.05.Fb
    62.20.Qp
    Opis:
    Chopped bamboo-reinforced epoxy composites were fabricated and tested to investigate their tribological properties. Three different weight fractions of 6%, 8% and 10% were used as reinforcement in the composites. Wear behaviour of composites was investigated by pin on disc wear testing device. To analyse the results the design of experiments (DOE) approach by using the Taguchi method was employed. Three different parameters (load, sliding speed, weight fractions) with three levels were chosen in design of experiments. Signal to noise ratio and analysis of variance (ANOVA) were used to investigate the influence of parameters on the wear rate and the coefficient of friction. According to the results, load was the most effective parameter for both wear rate and coefficient of friction.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 4; 687-689
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Parameters on Tribological Behaviour of E-Glass Fiber Reinforced Epoxy Composites
    Autorzy:
    Ozsoy, N.
    Ozsoy, M.
    Mimaroglu, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402531.pdf
    Data publikacji:
    2015-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Qk
    07.05.Fb
    62.20.Qp
    Opis:
    E-glass fiber reinforced epoxy composites were fabricated by hand lay up method and tested for investigating tribological behaviours. Wear behaviours of composites 0°, 90° and [0°/90°] oriented were investigated by pin on disc wear tester device for a constant distance (1000 m) and the design of experiments approach using the Taguchi method was employed. The tests were conducted sliding against a steel disc (60 HRC) under different sliding and loading conditions. Signal to noise ratio and analysis of variance (ANOVA) were used to investigate the influence of parameters on the wear rate and coefficient of friction.
    Źródło:
    Acta Physica Polonica A; 2015, 128, 2B; B-55-B-58
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanical and Tribological Behaviour of Chopped E-Glass Fiber-Reinforced Epoxy Composite Materials
    Autorzy:
    Ozsoy, N.
    Ozsoy, M.
    Mimaroglu, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031191.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Qk
    07.05.Fb
    62.20.Qp
    81.70.Bt
    Opis:
    Chopped E-glass fiber-reinforced epoxy composites (10%, 30% and 50%) were fabricated and their mechanical and tribological behaviour was investigated. Three-point bending tests were performed according to the ASTMD790 and tensile tests were performed according to the ASTMD638 standards. Impact tests and hardness measurements of the composites were also carried out. Wear behaviour of composites was studied using pin on disc wear testing device. The design of experiments approach, using Taguchi method, was employed to analyze the results. Signal-to-noise ratio and analysis of variance were used to determine the influence of parameters on the wear rate and coefficient of friction.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 852-856
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cross-Drainage Culvert Design by Using GIS
    Autorzy:
    Günal, M.
    Ay, M.
    Günal, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031809.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    92.40.FB
    92.40.QP
    07.05.MH
    Opis:
    A culvert is a structure that allows water to flow under a road, railroad, trail, or similar obstruction, from one side to the other side. Typically embedded, so as to be surrounded by soil, a culvert may be made from a pipe, reinforced concrete or other material. In order to minimize the impact of a water crossing on the environment, culverts require the proper size, design and installation, to ensure that they do not cause downstream erosion, upstream flood, alter stream habitat or block organism passage. In this study, the size of a box culvert has been determined by getting more realistic maximum flow rates, by using data of a geographic information system. The results of this study have been compared with the rational method. The size of the culvert, which is calculated by using data from geographic information system will be more realistic and efficient, compared to the culvert, calculated by rational method.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 595-598
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-output neural networks for estimation of synthetic unit hydrograph parameters: A case study of a catchment in Turkey
    Autorzy:
    Güven, A.
    Günal, A.
    Günal, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1054964.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    92.40.FB
    92.40.QP
    07.05.MH
    Opis:
    For developing unit hydrographs of catchments, the detailed information about the rainfall and the resulting flood hydrographs are needed. Such information, however, is available only for a few locations and for the remote locations such information is normally very scanty. In this study, Snyder based synthetic unit hydrographs were developed by using both, the digitized map and the digital elevation model of a case study of a small catchment in Turkey. Multi-output neural network technique was applied to predict three unit hydrograph parameters: peak discharge q_{p}, time to peak t_{p} and time base t_{b} of a number of unit hydrographs observed in the catchment, based on most relevant geomorphological and meteorological parameters. Multi-output neural network was observed to outperform the conventional synthetic unit hydrograph methods. The advantage of the proposed multi-output neural network is based on the fact that it predicts the three parameters of the unit hydrograph, based on a single model, compared to the conventional neural network technique, which utilizes a model for each parameter.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 591-594
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neural Approximation of Empirical Functions
    Autorzy:
    Roj, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1399400.pdf
    Data publikacji:
    2013-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    84.35.+i
    07.05.Mh
    06.20.-f
    06.20.F-
    06.20.fb
    02.60.Ed
    Opis:
    The paper presents the results of simulation studies of selected neural network structures used for non-linear function approximation based on a limited accuracy data. There was performed the analysis of the interdependence of the network structure and the size of the set of learning patterns. The approximation inaccuracy was expressed by the uncertainty interval width. The approximation properties of the neural method were compared with those of the piece-wise linear and polynomial: "cubic" and "spline" methods.
    Źródło:
    Acta Physica Polonica A; 2013, 124, 3; 554-557
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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