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

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    Wyświetlanie 1-9 z 9
    Tytuł:
    Numerical Solution of Fractional Black-Scholes Equation by Using the Multivariate Padé Approximation
    Autorzy:
    Özdemir, N.
    Yavuz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031286.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    02.60.-x
    02.30.Mv
    02.30.Jr
    Opis:
    In this study, a new application of multivariate Padé approximation method has been used for solving European vanilla call option pricing problem. Padé polynomials have occurred for the fractional Black-Scholes equation, according to the relations of "smaller than", or "greater than", between stock price and exercise price of the option. Using these polynomials, we have applied the multivariate Padé approximation method to our fractional equation and we have calculated numerical solutions of fractional Black-Scholes equation for both of two situations. The obtained results show that the multivariate Padé approximation is a very quick and accurate method for fractional Black-Scholes equation. The fractional derivative is understood in the Caputo sense.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 1050-1053
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Active monitoring of airborne elements in Isparta Province (Turkey) with the epiphytic lichen Physcia aipolia (Erh. ex Humb.) Furnr.
    Autorzy:
    Yavuz, M.
    Cobanoglu, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/16107.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Źródło:
    Journal of Elementology; 2019, 24, 3
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measurement of Double Differential Cross-Section for Electron Impact Ionization of Argon at 348 eV
    Autorzy:
    Bozkurt, G.
    Yavuz, M.
    Ozer, Z.
    Dogan, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1195074.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    34.80.Dp
    Opis:
    In this study, we report the angular distribution of double differential cross sections of ejected electrons from Ar in intermediate energy region. Double differential cross-sections for electron impact ionization of argon have been measured at 348 eV. A hemispherical energy analyzer is used to analyze the ejected electrons with energies between 25 and 325 eV and angles between 25° and 130°.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 343-344
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Double Differential Cross-Section Measurements for Methane Molecule at 350 eV
    Autorzy:
    Yavuz, M.
    Isik, N.
    Ozer, Z.
    Ulu, M.
    Doğan, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1194671.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    34.80.Gs
    Opis:
    Double differential cross-sections have been measured after ionizing electron collisions with methane at primary energy of 350 eV using a conventional electron spectrometer. An electrostatic analyzer was used to measure angular distributions of secondary electrons with energies between 25 eV and 300 eV. Angles of emission were 25° to 130°. It was found that the outgoing electrons belong to one of the two energetically separated groups, either the fast electrons which are scattered mainly in forward direction or the slow electrons which are distributed isotropically into all angles. For higher ejection energies the maxima shifted towards smaller angles as expected from binary type collision.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 442-444
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of the Effect of Solidification Time and Addition Amount of Inoculation on Microstructure and Hardness in Lamellar Graphite Cast Iron
    Autorzy:
    Çolak, Murat
    Uslu, Emin
    Teke, Çağatay
    Şafak, F.
    Erol, Ő.
    Erol, Y.
    Çoban, Y.
    Yavuz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2203933.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    lamellar graphite
    graphite cast iron
    inoculation
    solidification time
    modeling
    grafit
    żeliwo
    wszczepienia
    czas krzepnięcia
    modelowanie
    Opis:
    Material suppliers typically recommend different additive amounts and applications for foundry practices. Therefore, even in the production of the same standard materials, different results may be obtained from various production processes on different foundry floors. In this study, the liquid metal prepared with the addition of different proportions of a FeSi-based inoculation, which is most commonly used in foundries in the production of a cast iron material with EN-GJL-250 lamellar graphite cast iron, was cast into sand molds prepared with a model designed to provide different solidification times. In this way, the optimization of the inoculation amounts on the casting structure for different solidification times was investigated. In addition, hardness values were determined depending on solidification time in varying amounts of inoculation additions. SolidCast casting simulation software was used to determine the casting model geometry and solidification time. In the scope of the study, sand casting, modeling, microstructure analysis, image analysis, microstructure analysis, and hardness tests techniques were used. When the results are examined, the required amount of inoculation for the optimal structure is optimized for the application procedure depending on the casting module and the solidification time.
    Źródło:
    Archives of Foundry Engineering; 2022, 22, 4; 24--33
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of Experimental and Theoretical Double Differential Cross Sections of CH₄ at 250 eV Impact Energy
    Autorzy:
    Isik, N.
    Yavuz, M.
    Aksoy, E.
    Ozer, Z.
    Ulu, M.
    Sahlaoui, M.
    Boumediene, L.
    Bouamoud, M.
    Dogan, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1401296.pdf
    Data publikacji:
    2015-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    34.80.Gs
    Opis:
    In this study, experimental and theoretical double differential cross section (DDCS) data for methane-electron interaction mechanism after the impact of a 250 eV electron have been comprehensively determined for a wide energy range of the detected electron, from 50 to 225 eV. The first Born-One Coulomb wave modeling with Gamow factor has been calculated to analyze experimental DDCS results for a correct description of the electron impact ionization of methane molecule. It is found that these theoretical calculations are successful to describe the post-collision interaction effects due to the Coulomb long-range interaction between the outgoing electrons in the final state. A considerable agreement is found between experimental and theoretical results.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 4; 1112-1114
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Novel Method for Manufacturing Polymer/Metal Hybrid Structures
    Autorzy:
    Altan, M.
    Yavuz, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1187217.pdf
    Data publikacji:
    2016-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.41.+e
    68.47.De
    Opis:
    In this study, a method for manufacturing polymer/metal hybrid structure is presented in which traditional plastic injection machine was converted to plastic injection forming (PIF). In this method, deforming of the metal and adhering the metal to the polymer is done in one step. In the experimental study, a special mold within rectangular cavity was used during PIF process. Aluminum plates of different thicknesses were used as the metal parts of the structure. The injected polymers were pure polystyrene and elastomer-added polystyrene. The deformability of the Al plates was examined under different injection pressures. In order to provide adhesion between metal and polymer, an adhesive of elastomeric nature was applied on the metal plate prior to injection molding. Bending test was applied to determine the flexural strength and maximum deflection of the polymer/metal hybrid structures. The obtained results were satisfactorily acceptable in improving the method for designing and manufacturing polymer/metal hybrid structures in one step.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 4; 639-641
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of seed yield, oil and mineral contents inbred pumpkin lines (Cucurbita pepo L.) under water stress
    Autorzy:
    Seymen, M.
    Dursun, A.
    Yavuz, D.
    Kurtar, E.S.
    Özbahçe, A.
    Türkmen, Ö.
    Powiązania:
    https://bibliotekanauki.pl/articles/12717526.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Opis:
    Water stress is one of the main constraints which could limits crop productivity, especially in arid and semi-arid regions characterized limited water resources. This study was conducted to investigate the seed yield, oil and mineral contents of 44 lines and 4 commercial pumpkin varieties (2 local and 2 hybrids) in irrigated and drought stress conditions. The study was conceived as a randomized block design with three replications and carried out during the 2017 growing season. On average, the irrigated plots produced 161.27 kg da⁻¹ seed yield whereas it was 33.67 kg da⁻¹ in non-irrigated plots. The highest yield among the commercial pumpkin varieties was obtained from the G2 hybrid variety in the irrigated conditions. On the other hand, in the non-irrigated plots, higher seed yields were obtained from G9, G34, and G36 pure lines. Drought resulted in a remarkable decrease in the total oil content and significant increase in the amount of Ca and Zn in pumpkin seeds. These results clearly indicated that G9 line, which has the highest seed yield in both irrigated and drought conditions, can be utilized as a recommendable parental pumpkin line in future hybrid breeding efforts.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 3; 89-99
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of the long term use of a computer on median, ulnar and radial sensory nerves in the wrist region
    Autorzy:
    Bamac, Belgin
    Colak, Serap
    Dundar, Gulmine
    Selekler, Hamit M.
    Taşkiran, Yavuz
    Colak, Tuncay
    Balci, Emin
    Powiązania:
    https://bibliotekanauki.pl/articles/2179017.pdf
    Data publikacji:
    2014-12-01
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    computer users
    ulnar
    median
    radial
    nerve
    Opis:
    Objectives: Repetitive microtrauma or overuse injuries may often affect upper extremities of the long term computer users. The aim of this study was to compare sensory nerve conduction velocities (SNCV) for median, radial and ulnar nerves in the wrist of computer users with the same parameters in controls who do not use computers regularly. Material and Methods: Twenty one male computer users (age: mean (M) = 28.3 years ± standard deviation (SD) = 7.5 years) and 21 male control subjects (age: M±SD = 24.1±4.6 years) were recruited for the study. Limb length and the perimeters of the dominant arm and forearm were measured for each subject. The neurophysiological study consisted of measuring sensory nerve conduction of the median, ulnar and radial nerves. Results: The sensory conduction velocities of both median and ulnar nerves were significantly delayed in the dominant arm of the computer users compared to the controls. In addition, sensory conduction velocity of the median nerve was significantly delayed in the dominant extremity of the computer users compared to their non-dominant extremity. Conclusions: This study shows that computer users have a tendency toward developing median and ulnar sensory nerve damage in the wrist region. Mechanism of delayed SNCV in the median and ulnar nerves may be due to sustained extension and ulnar deviation of the wrist during computer mouse use and typing. Reduced SNCV changes were more apparent on the dominant side of the median nerve. This may indicate the increased neural deficits related to an increased use of the dominant side. Further investigation is needed to determine how to reduce potential risk factors at this stage in order to prevent development of median or ulnar neuropathy in the long term computer users.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2014, 27, 6; 1026-1035
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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