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 "Çetin, B." wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-15 z 15
    Tytuł:
    Determination of natural radioactivity concentrations in surface soils in the Yeşilırmak river in Amasya, Turkey
    Autorzy:
    Çetin, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1065705.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    29.90.+r
    29.30.-h
    Opis:
    In this study, natural radioactivity concentration in the surface soils along the Yeşilırmak river in Amasya have been investigated. The activity concentrations of radionuclides of the ²²⁶Ra and ²³²Th decay chains and of the ⁴⁰K were determined by means of gamma-ray spectrometry measurements made using a 3 × 3'' NaI(Tl) detector system. Concerning radiological risk, the absorbed gamma dose in air from those soils and the outdoor annual effective dose equivalent were calculated.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 320-321
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Radiation Shielding Properties of Mortars and Plasters Used in Historical Buildings
    Autorzy:
    Özavci, S.
    Çetın, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031750.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    28.52.Fa
    28.41.Qb
    Opis:
    In this study, the radiation absorption properties of mortars and plasters used in historical buildings have been investigated. Studied lime concretes contained such additives as brick dust, fertilizer, wet lime, wool, egg white, bone meal, rice, casein, whey, bone ash and tree leaf juice, in different concentrations. The linear attenuation coefficients of gamma rays in lime concretes have been measured at 662, 1773 and 1332 keV. The gamma rays have been obtained from ¹³⁷Cs and ⁶⁰Co sources and the measurements have been performed using a gamma spectrometer, based on a 3"× 3" NaI(Tl) detector, connected to 16384-channel multi-channel analyser.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 986-987
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of radiation attenuation coefficients in concretes containing different wastes
    Autorzy:
    Özavci, S.
    Çetın, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1068130.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    28.52.Fa
    28.41.Qb
    Opis:
    Environmental wastes can be cleaned in a very long time by ecosystem. However, the cleaning power of the ecosystem is not enough. For this reason, the evaluation of the different areas of waste processing is important. In this study attenuation coefficient of gamma rays has been investigated for concretes containing different amounts of glass, bulb and plastic wastes.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 316-317
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of the natural radioactivity level of Amasya Şeyhcui Region
    Autorzy:
    Coşkun, A.
    Çetın, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1068311.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    28.52.Fa
    28.41.Qb
    Opis:
    People are exposed to both internal and external radiation from the natural radiation sources. For this reason, studies determining the natural radiation level are made to detect the effects of radionuclides, that constitute the natural radiation sources, on the environment and especially the effects of radiation on people and on biological systems. The most common radiation sources are ²³⁸U, ²²⁶Ra, ²³²Th and ⁴⁰K radioisotopes. In this study, in the samples of the rock and soil acquired from Amasya Şeyhcui Region, the activity concentrations of ²²⁶Ra, ²³²Th and ⁴⁰K are determined by using NaI (Tl) detector with gamma spectrometer and are compared with the limit values.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 309-310
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theoretical Photoneutron Cross Sections and the Effect of Gamma Strength Functions for W, Ag, Nb
    Autorzy:
    Karpuz Demir, N.
    Çetin, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031930.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    24.10.-i
    25.20.-x
    Opis:
    In nuclear reactions the usage of high energy gamma particles, as projectiles, has some essential advantages for studying of nuclear structure and reaction mechanisms. In this work, (γ,n) reaction cross sections of ¹⁸⁶W, ¹⁰⁷Ag and ⁹³Nb have been calculated with TALYS 1.6 nuclear reaction simulation code. The main aim of this study is to investigate the effects of preequilibrium and the gamma strength functions on ¹⁸⁶W, ¹⁰⁷Ag and ⁹³Nb. The calculated results have been discussed and compared with the experimental data.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 1076-1079
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Theoretical Production of In Isotopes by Insertion of Alpha Particles into Cd Nucleus
    Autorzy:
    Kilinç, F.
    Çetin, B.
    Karpuz, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031909.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    13.85.Lg
    13.87.Ce
    25.60.Dz
    Opis:
    Knowledge of the cross sections of reactions of charged particles with target material is needed to understand well the mechanisms of nuclear reactions. One of the main application fields of nuclear technology and nuclear reactions is medicine. Radioisotopes are used in medicine and production of these radioisotopes is important. In the production processes, the cross sections must be known. For this purpose, in this study, theoretical cross sections of production of In isotopes by alpha irradiation have been calculated using Talys 1.6 nuclear reaction simulation code. The obtained results are compared with the existing experimental data.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 1080-1081
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessments of natural radioactivity concentration and radiological hazard indices in surface soils from the Gözlek Thermal SPA (Amasya-Turkey)
    Autorzy:
    Bolat, B.
    Öner, F.
    Çetın, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1054952.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    29.90.+r
    29.30.-h
    Opis:
    The concentration of natural radioactivity was determined in the surface soil of the Gözlek Thermal SPA in Amasya. The activity concentrations of natural radionuclides in soil samples were determined using gamma-ray spectrometer, containing a 3"× 3" NaI(Tl) detector connected to multi-channel-analyser. The photo-peaks at 1460, 1764 and 2615 keV are due to ⁴⁰K, ²²⁶Ra and ²³²Th, respectively. The radiological hazard indices of the natural radionuclides content, radium equivalent activities Ra_{eq}, absorbed dose rate (ADR), annual effective dose rate (AEDR) and external hazard index H_{ex} were also calculated.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 1200-1202
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculation of the (p,n) reaction cross section of radionuclides used for PET applications
    Autorzy:
    Kilinç, F.
    Karpuz, N.
    Çetın, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1065775.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    13.85.Lg
    13.87.Ce
    Opis:
    Positron emission tomography is an imaging method which plays an important role in the diagnosis and monitoring of cancer cells using radioactive substances. In this study (p,n) reaction cross sections of some radionuclides (Cu-61, Ga-66, Br-76) were calculated using Talys 1.6 nuclear simulation code. The calculated cross-sections were compared with experimental values taken from EXFOR.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 318-319
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theoretical cross-section calculation of In-111, Tc-99m, Co-57 radioisotopes used for kidney imaging
    Autorzy:
    Kilinç, F.
    Karpuz, N.
    Çetın, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1068239.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    13.85.Lg
    13.87.Ce
    Opis:
    Many radioisotopes are used in nuclear medicine diagnostics and therapy. Co-57, In-111 and Tc-99m isotopes are widely used in nuclear medicine and are successfully implemented in renal imaging. In this work, the cross section calculation of the (p, 2n) reaction, which is necessary for production of the nuclei of Co-57, In-111, Tc-99m, were calculated using TALYS 1.6 nuclear reaction code. The calculated cross sections were compared with the experimental data from the EXFOR.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 311-312
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of natural radioactivity and associated radiological hazard in excavation field in Turkey (Oluz Höyük)
    Autorzy:
    Çetin, B.
    Öner, F.
    Akkurt, İ.
    Powiązania:
    https://bibliotekanauki.pl/articles/1070198.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    29.40.-n
    29.85.Fj
    Opis:
    The level of natural radioactivity may be varied with the increase in dependence of the depth into the earth. In present study, soil samples from different depths were collected in Oluz Höyük excavation area. The radionuclide concentrations in soil samples were determined by gamma-ray spectrometer which contains 3" × 3" NaI(Tl) detector connected to multichannel analyser. The photopeaks at 1460, 1764, and 2615 keV due to ⁴⁰K, ²²⁶Ra and ²³²Th, respectively, have been used. The obtained activity concentrations of ⁴⁰K, ²²⁶Ra and ²³²Th ranged from 656.03 to 1791.85 Bq/kg, 62.39 to 180.93 Bq/kg and 48.31 to 125.43 Bq/kg, respectively. To assess the radiological hazard of the natural radionuclides content in the soil samples of these area, the radium equivalent activities (the minimum value was 181.99 Bq/kg and the maximum value was 497.97 Bq/kg), the absorbed dose rate (the minimum value was 86.83 nGy/h and the maximum value was 237.22 nGy/h), annual effective dose rate (the minimum value was 0.11 mSv/y and the maximum value was 0.29 mSv/y) and external hazard index (the minimum value was 0.49 and the maximum value was 1.35) were calculated using measured activities.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 475-478
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of Radiation Shielding Properties of Soda-Lime-Silica Glasses Doped with Different Food Materials
    Autorzy:
    Çetin, B.
    Yalçin, Ş.
    Aktas, B.
    Albaşkara, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031927.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    29.40.-n
    29.40.Mc
    Opis:
    In this study, radiation shielding properties of soda-lime-silica glasses doped with different food materials such as the egg shell and the peanut shell powders were investigated. Egg shell and peanut shell powders were obtained by grinding of waste shells in an agate mortar. The SLS glass samples with varying egg shell/peanut shell content were produced by melting. The measurements have been performed using the gamma spectrometer, containing a 3" × 3" NaI (Tl) detector, and connected to a full featured 16K channel Multi Channel Analyzer provided by ORTEC/MAESTRO-32 software.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 988-990
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculations of Double Differential Cross Sections on ⁵⁶Fe, ⁶³Cu and ⁹⁰Zr Neutron Emission in Proton Induced Reactions
    Autorzy:
    Karpuz Demir, N.
    Çetin, B.
    Akkurt, İ.
    Noori, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031939.pdf
    Data publikacji:
    2017-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    13.85.Lg
    13.87.Ce
    Opis:
    In general, the deep understanding of proton-induced reactions is a crucial step for the further development of nuclear reactions theory. However there has been an interesting focus in nuclear physics. Some applications require accurate nuclear reaction data of common cross sections and especially need the data of neutron and proton induced energy-angle correlated spectra of secondary particles, as well as double differential cross sections. Double-differential nucleon-production cross-sections of ⁵⁶Fe, ⁶³Cu and ⁹⁰Zr targets, bombarded with protons are calculated based on the nuclear theoretical models. Monte Carlo calculations with the TALYS 1.6 nuclear reaction simulation code are performed. Theoretical calculated results are compared with existing experimental data in EXFOR library.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 3; 1181-1185
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of Terpolymer Addition on the Thermal and Termomechanical Properties of Poly(Phenylene Sulfide)
    Autorzy:
    Cetin, B.
    Sahin, A.
    Yilmaz, T.
    Sinmazcelik, T.
    Curgul, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/1033681.pdf
    Data publikacji:
    2017-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.70.Pg
    83.85.Vb
    61.41.+e
    Opis:
    Poly(phenylene sulfide) (PPS) is one of the high-performance engineering polymers and it exhibits superior behavior, such as electrical insulation, dimensional and thermal stability, chemical resistance for various industrial applications. In addition to this, PPS has a high degree of crystallinity and it maintains these properties at high temperatures. These advantageous properties of PPS can be dependent on its chemical structure, composed of phenyl groups linked by a sulfur atom, which gives rigidity to the polymer chains. Owing to these properties, PPS is widely used in electrical and electronic components, automobile industry and mechanical applications. On the other hand, brittleness of PPS restricts its further applications. For this reason, ethylene-acrylic ester-glycidyl methacrylate terpolymer (Lotader®-AX8900) was used to overcome the brittleness of PPS. The effects of terpolymer addition on the thermal and thermomechanical properties of blends were investigated in this study. PPS/Lotader (0, 2, 5, 10 wt.% Lotader®) blends of various compositions were prepared. The blends were prepared by using laboratory scale micro compounder and injection molding machine. Thermomechanical and thermal properties of blends were investigated by means of dynamic mechanic analysis and differential scanning calorimeter test methods. As a result of this study, it was found that increasing loading level of Lotader® significantly decreased the crystallinity and increased glass transition temperature of PPS. On the other hand, Lotader® addition did not affect the melting temperature of PPS considerably. Results of dynamic mechanic analysis test revealed that while damping factor peak and loss modulus values of blends increased with the addition of Lotader®, storage modulus of blends decreased with the increasing loading level of Lotader®. When all test results are considered, it can be concluded that Lotader addition changes the brittle nature of PPS to ductile nature. In addition to this, 2 wt.% Lotader addition to PPS enables the optimum ductility for PPS without deteriorating its other properties.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 3; 598-600
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improvement of the Toughness and Crack Propagation Resistance Properties of Poly(Phenylene Sulfide)
    Autorzy:
    Cetin, B.
    Sahin, A.
    Karsli, N.
    Yilmaz, T.
    Sinmazcelik, T.
    Curgul, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/1398748.pdf
    Data publikacji:
    2016-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Qk
    62.25.Mn
    62.20.mm
    Opis:
    Poly(phenylene sulfide) (PPS) is a high-performance thermoplastic engineering polymer, which exhibits outstanding properties such as electrical insulation, dimensional and thermal stability, chemical resistance, etc. In addition to this, PPS has a high degree of crystallinity and it exhibits good physical properties at elevated temperatures. Owing to these properties, PPS is widely used in electrical and electronic components, automobile industry and mechanical applications. These outstanding properties of PPS can be attributed to its chemical structure, composed of phenyl groups linked by a sulfur atom, which gives rigidity to the chain. On the other hand, the brittleness with low elongation strain, toughness and crack propagation resistance also restricts its further applications. Several methods are used to overcome these undesirable properties of PPS. Blending of PPS with other polymers is one of these methods. In this study, Ethylene-Acrylic Ester-Glycidyl Methacrylate terpolymer (Lotader®-AX8900) was used to improve the toughness and crack propagation resistance properties of PPS. For this purpose, PPS/Lotader (0, 2, 5, 10 wt.% Lotader) blends were prepared at various compositions. The blends were manufactured using laboratory scale twin screw extruder and injection molding machine. Mechanical properties of blends were investigated by using tensile test method. In addition to this, crack propagation and toughness of samples were investigated by using essential work of fracture (EWF) method. As a result of this study, it was found that Lotader addition significantly increases the toughness and crack propagation resistance of PPS.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 4; 683-686
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Competitiveness of Turkish Coaster Merchant Fleet: A Qualitative Analysis By Short Sea Shipping Perspective
    Autorzy:
    Çetin, I.B.
    Akgül, E.F.
    Koçak, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/117315.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Turkish coaster merchant fleet
    short sea shipping
    maritime industry
    mediterranean sea
    black sea
    seafarers
    Turkish
    coaster merchant fleet
    coaster vessel
    Opis:
    There is an intense competition across many sectors in the maritime industry. Coaster owners being in a market where perfect competition rules apply has to be competitive in order to survive. This study aims to analyze the competitiveness of Turkish coaster merchant fleet that consists of the vessels whose cargo carrying capacity differs from 1.000 dwt to 12.000 dwt and that carries dry bulk goods and general cargo based on short sea shipping concept covering Black Sea, Mediterranean and Continental Europe. Based on a qualitative research methodology, interviews were held and data were collected by using semi-structured questionnaire, and the data collected from the interviews was categorized in order to describe and explain patterns and themes. The findings of the interviews were analyzed within the context of sector-specific external factors and company-specific internal factors, and the competitiveness of shipowners operating in the Turkish coaster market was analyzed in detail. It is expected that the findings and implications will especially shed light on the decision makers and policy makers in the sector and contribute to the current literature.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 389-396
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-15 z 15

      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