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 Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Cicek, A." wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-10 z 10
    Tytuł:
    Fatigue Life Predictions of Metal Matrix Composites Using Artificial Neural Networks
    Przewidywania trwałości zmęczeniowej kompozytów metalowych przy użyciu sztucznych sieci neuronowych
    Autorzy:
    Uygur, I.
    Cicek, A.
    Toklu, E.
    Kara, R.
    Saridemir, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/355098.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    MMCs
    fatigue life prediction
    artificial neural networks
    przewidywania trwałości zmęczeniowej
    sztuczne sieci neuronowe
    Opis:
    In this study, fatigue life predictions for the various metal matrix composites, R ratios, notch geometries, and different temperatures have been performed by using artificial neural networks (ANN) approach. Input parameters of the model comprise various materials (M), such as particle size and volume fraction of reinforcement, stress concentration factor (Kt), R ratio (R), peak stress (S), temperatures (T), whereas, output of the ANN model consist of number of failure cycles. ANN controller was trained with Levenberg-Marquardt (LM) learning algorithm. The tested actual data and predicted data were simulated by a computer program developed on MATLAB platform. It is shown that the model provides intimate fatigue life estimations compared with actual tested data.
    Zastosowano sztuczne sieci neuronowe (ANN) do przewidywania trwałości zmęczeniowej dla różnych kompozytów metalowych, parametrów R, geometrii karbu, i różnych temperatur. Parametry wejściowe modelu obejmowały: różne materiały (M), o różnym rozmiarze cząstek i objętosci frakcji zbrojącej, współczynnik koncentracji naprężeń (Kt), stosunek parametru R (R), naprężenie szczytowe (S), temperaturę (T), natomiast dane wyjściowe składały się z liczby cykli awarii (SSN). Kontroler ANN był trenowany z użyciem algorytmu uczenia Levenberga-Marquardta (LM). Badane dane rzeczywiste i dane przewidywane symulowane były przez program komputerowy opracowany na platformie MATLAB. Wykazano, że model zapewnia oszacowanie trwałości zmęczeniowej bliską rzeczywistym danym badanym.
    Źródło:
    Archives of Metallurgy and Materials; 2014, 59, 1; 97-103
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of lichens as bio-indicators of metal pollution
    Ocena porostów jako biologicznych wskaźników zanieczyszczenia metalami
    Autorzy:
    Aslan, A.
    Gurbuz, H.
    Yazici, K.
    Cicek, A.
    Turan, M.
    Ercisli, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/15640.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Opis:
    The objectives of this study have been to determine the impact of the distance from acombustor of a cement plant (downwind direction) and duration of exposure to pollution on the bioaccumulation of metals by four lichen species. Nickel, cadmium, chromium, cop- per and lead accumulated in lichen thalli, with the highest accumulation occurring at 50 m of the cement plant and upon prolonged exposure. In contrast, the concentrations of Al were not consistently affected by the distance from the plant or the duration of exposure. Pseudevernia furfuracea was most effective as an indicator of cement dust pollution. We concluded that transplantation of Pseudevernia furfuracea on trees or shrubs can be an easy and cost-effective means of Ni, Cd, Cr, Cu and Pb pollution monitoring.
    Źródło:
    Journal of Elementology; 2013, 18, 3
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Numerical Study of Combined Natural and Marangoni Convection in a Square Cavity
    Autorzy:
    Cicek, K.
    Baytas, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/116928.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Numerical Study
    Square Cavity
    natural convection
    Marangoni Convection
    Buoyancy-Driven Flow
    Thermo Capillary Flow
    Navier-Stokes Equations
    Rayleigh Number
    Opis:
    Through the aim of this study, the effects of combined buoyancy-driven flows and thermo capillary flows, which are emerged from temperature differences, on fluid flow and heat transfer numerically investigated with differentially heated side walls in a free surface square cavity. The study has been accomplished with three milestones to achieve the right solutions. For every milestone Navier-Stokes, continuity and energy equations are discretized by using finite volume method and grids with 52 x 52 control volumes. Results are presented Pr=1, Pr=7 and Pr=100. The effect of positive and negative Marangoni number on fluid flow and heat transfer at different Rayleigh number are considered and discussed.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 2; 173-178
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphological Variations of Chondrocytes in Bovine Articular Cartilage Using Confocal Laser Scanning Microscopy
    Autorzy:
    Çıçek, E.
    Arikanoğlu, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1197654.pdf
    Data publikacji:
    2014-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    87.85.G-
    Opis:
    Articular cartilage is a highly organized avascular tissue, a matrix consisting of a three-dimensional meshwork of type II collagen fibrils and proteoglycans. To understand the effects of the alteration in chondrocyte shape in response to physiological load in local mechanical properties and, thus, to contribute to experimental load studies, we studied variation of the natural load induced deformations in chondrocytes among five different regions from bovine articular cartilage samples using confocal laser scanning microscopy imaging methods. The morphological differences of the chondrocyte shape, orientation and circularity in articular cartilage were measured. The chondrocytes were observed to be smoother in more loaded regions to the center of the cartilage.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 4; 898-901
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesizing of (Bi₂O₃)_{1-x-y}(Ho₂O₃)_x(Dy₂O₃)_y Electrolytes for Intermediate-Temperature Solid Oxide Fuel Cells
    Autorzy:
    Kaşikci Özen, M.
    Kayali, R.
    Çiçek Bezir, N.
    Evcin, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1398679.pdf
    Data publikacji:
    2016-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    82.47.Ed
    Opis:
    In present study, Ho₂O₃ and Dy₂O₃ doped Bi₂O₃ composite materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs) were investigated. $(Bi_2 O_3)_{1-x-y}(Ho_2 O_3)_x(Dy_2 O_3)_y$ ternary systems (x=0.11, 0.13, 0.15 and y=0.01, 0.03, 0.05, 0.07) were fabricated using conventional solid-state synthesis techniques. The samples were characterized by means of X-ray powder diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, differential thermal analysis/thermal gravimeter, and the four-point probe technique. X-ray powder diffraction measurements indicated that all samples have the stable fluorite type face centered cubic (fcc) δ-Bi₂O₃ phase. Scanning electron microscopy micrographs of all of the samples showed that grain size distribution was uniform. Four-point probe technique measurements showed that the conductivity of the samples increase with increase of temperature. Additionally, it has been found that the maximum conductivity values of all samples fall in a range $8.44×10^{-2}-4.60×10^{-1} Scm^{-1}$ and their conductivity values corresponding to the intermediate-temperature region vary in the range $1.65×10^{-3}-2.30×10^{-1} Scm^{-1}$. The activation energy values of the samples were calculated from łogσ graphics versus 1000/T using the Arrhenius equation. It was found that there is a good agreement between the activation energy values and conductivity values.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 1; 125-132
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of Five-Layered ZrO₂ and Single-Layered Ce, Eu, and Dy-Doped ZrO₂ Thin Films Prepared by Sol-Gel Spin Coating Method
    Autorzy:
    Çiçek Bezir, N.
    Evcin, A.
    Kayali, R.
    Özen, M.
    Esen, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031178.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.37.-d
    68.55-a
    68.60-p
    78.20.-e
    81.10.Dn
    71.20.Be
    Opis:
    In order to investigate the influence of the number of layers on the properties of ZrO₂ thin films, we prepared one pure ZrO₂ film sample with five layers and Ce, Eu, and Dy-doped ZrO₂ samples with single layer, by spin-coating sol gel-method. The crystal structures of thin films were determined using X-ray diffraction, morphology of the samples was analyzed by scanning electron microscopy, and the optical properties of the samples were determined by ultraviolet/visible absorbance measurements. The results of these measurements have shown that the concentration of the dopants and the thickness of thin film layers play a vital role in the physical, chemical, and optical properties of the pure and doped ZrO₂ thin films.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 612-616
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Response surface methodology for cobalt removal from aqueous solutions using Isparta pumice and zeolite 4A adsorbents
    Autorzy:
    Çiçek, E.
    Cojocaru, C.
    Zakrzewska-Trznadel, G.
    Jaworska, A.
    Harasimowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/146766.pdf
    Data publikacji:
    2008
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    zeolite
    Isparta pumice
    adsorption
    radioactive waste
    cobalt ions
    response surface methodology
    Opis:
    In this study, the adsorption of non-radioactive cobalt ions from aqueous solutions onto Isparta pumice and zeolite 4A sorbents was investigated. Both adsorbent materials have been activated at 873 K for 2 h prior to adsorption experiments in batch mode. The maximum removal efficiencies of 90% and 99% have been obtained experimentally using Isparta pumice and zeolite 4A, respectively. In addition, the experiments with radioactive 60Co were performed to test zeolite ability to remove radioactive compounds. Likewise, the response surface methodology (RSM) has been applied to develop the predictive regression models to describe the adsorption of cobalt and radiocobalt ions onto zeolite 4A and Isparta pumice. The results indicated that zeolite 4A as well as Isparta pumice could be used as the efficient sorption materials for cobalt and radiocobalt ions removal.
    Źródło:
    Nukleonika; 2008, 53, suppl. 2; 121-128
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of Pure and Doped TiO₂ Thin Films Prepared by Sol-Gel Spin-Coating Method
    Autorzy:
    Çiçek Bezir, N.
    Evcin, A.
    Kayali, R.
    Özen, M.
    Balyaci, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031525.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.37.-d
    68.55.-a
    68.60.-p
    78.20.-e
    81.10.Dn
    71.20.Be
    Opis:
    In this study, using spin-coating sol-gel method we fabricated TiO₂ thin films, doped with different concentrations (1, 2, and 3 mole %) of Ce, Dy, and Eu. Characterization of the prepared samples was performed by means of the X-ray diffraction, scanning electron microscopy, ultraviolet visible absorption, and differential thermal and thermo gravimetric analysis. X-ray diffraction measurements have shown that in Eu and Dy-doped samples crystal structure consists of mixed rutile and the dominant anatase phases, however the Ce doped samples consist of anatase phase only. Scanning electron microscopy images have revealed that while average thin film thickness of the Dy-doped samples decreases with increasing concentration of Dy, the average film thicknesses of samples doped with Ce and Eu increases with increasing concentrations of these dopants. Ultraviolet visible absorption spectroscopy measurements have shown that while absorbances of the samples doped by 1 and 2 mole % of the dopants have nearly similar properties, these properties differ from each other for 3 mole % of the dopants. Finally, differential thermal and thermo gravimetric analyses have shown that the chemical reactions and weight losses of the samples have occurred at the expected temperatures.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 620-624
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Layer Thickness on I-V Characteristics of GaInP Nanofibers Fabricated by Electrospinning on n-Si Substrates
    Autorzy:
    Çiçek Bezir, N.
    Evcin, A.
    Okçu, H.
    Kayali, R.
    Kaleli, M.
    Aldemir, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031924.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.-b
    73.61.Le
    81.07.Gf
    Opis:
    GaInP nanofibers were formed on n-Si substrates by electrospinning method, using constant voltage (25 kV), height (6 cm), and flow rate (0.3 ml/h) during various process times (of 10, 20, 25 minutes). Characterization of the prepared samples was performed by X-ray diffraction, differential scanning calorimetry/thermal gravimetric analysis, scanning electron microscopy, and energy dispersive X-ray spectrometry. Furthermore, the current-voltage measurements of the GaInP/n-Si samples have been carried out. The obtained results show that I-V characteristics of all GaInP/n-Si samples fabricated with three thicknesses of GaInP layers are rather in a good agreement with the theory and that they exhibit rectifying properties.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 638-641
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristic properties of Dy-Eu-Ce Co-doped ZrO₂ nanofibers fabricated via electrospinning
    Autorzy:
    Çıçek Bezır, N.
    Evcın, A.
    Kayali, R.
    Kaşikçi Özen, M.
    Esen, K.
    Cambaz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1070411.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.-b
    81.07.Gf
    Opis:
    Zirconium oxide (ZrO₂) is one of the widely studied oxide materials because of its excellent electrical, mechanical and optical properties. In this study, undoped and Dy-Eu-Ce co-doped ZrO₂ nanofibers were fabricated by electrospinning method and their crystal structure, surface morphology, optical properties, electrical and electronic properties, and chemical properties have been analyzed using X-ray diffraction, scanning electron microscope (SEM), UV/VIS spectrometer, four point probe technique (FPPT) energy dispersive X-ray (EDX) measurements, respectively.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 300-303
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

      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