Informacja

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

Wyszukujesz frazę "Özer, H." wg kryterium: Autor


Wyświetlanie 1-10 z 10
Tytuł:
Chemical composition and antioxidant activity of foxtail lily (Eremurus spectabilis)
Skład chemiczny i działanie przeciwutleniające pustynnika okazałego (Eremurus spectabilis)
Autorzy:
Tosun, M.
Ercisli, S.
Ozer, H.
Turan, M.
Polat, T.
Ozturk, E.
Padem, H.
Kilicgun, H.
Powiązania:
https://bibliotekanauki.pl/articles/11542331.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Eremurus spectabilis is used as a vegetable in Turkey, especially in Eastern Anatolia region. In this study, eight E. spectabilis from different growing areas have been analyzed for its nutrition value and antioxidant properties. The results showed that there were significant differences among samples in terms of all above parameters. The mean values of the parameters investigated were 86.62–91.35% for water content, 4.78–5.15 for pH; 0.42–0.70% for acidity, and 0.61–1.11% for ash content. The antioxidant activity tests evaluated by using 2-diphenyl-1-picryhydrazyl (DPPH) free radical scavenging and β-carotene/linoleic acid assays indicated that the extracts of E. spectabilis samples had high antioxidant capacity. In the DPPH and β-carotene/linoleic acid systems, average values were 73.69 ȝg extract . ml⁻¹ and 94.56%, respectively. The average amount of total phenolics in samples was 223 mg GAE . 100 g⁻¹ FW. Protein, K, Ca, Mg, Fe and Cu contents of E. spectabilis species were found higher than in some other commonly used vegetables. The results suggest that E. spectabilis could be a valuable source of antioxidants, phenolics and minerals.
Eremurus spectabilis używany jest w Turcji jako warzywo, zwłaszcza w regionie Wschodniej Anatolii. W niniejszej pracy przeanalizowano wartość odżywczą i właściwości przeciwutleniających ośmiu roślin E. spectabilis z różnych obszarów uprawowych. Wyniki wykazały, że pomiędzy próbkami wystąpiły znaczące różnice we wszystkich powyższych parametrach. Średnie wartości badanych parametrów wynosiły: 86,62–91,35% dla zawartości wody, 4,78–5,15 dla pH; 0,42–0,70% dla kwasowości oraz 0,61–1,11% dla zawartości popiołu. Badania właściwości przeciwutleniających z wykorzystaniem strącania oczyszczającego wolnych rodników 2-difenylo-1-pikryhydrazylem (DPPH) oraz próby z β-karotenem/kwasem linoleinowym wykazały, że wyciągi z E. spectabilis mają silne zdolności przeciwutleniające. W systemach DPPH i β-karotenowych/z kwasem linoleinowym wartości średnie wynosiły odpowiednio 73.69 ȝg wyciągu. ml⁻¹ i 94,56%. Średnia ogólna zawartość fenoli w próbkach wynosiła 223 mg GAE . 100 g⁻¹ św.m. Stwierdzono, że zawartość białka, K, Ca, Mg, Fe i Cu w roślinach gatunku E. spectabilis jest wyższa niż w innych powszechnie wykorzystywanych warzywach. Wyniki sugerują, że E. spectabilis może być cennym źródłem przeciwutleniaczy, fenoli i związków mineralnych.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2012, 11, 3; 145-153
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
B-Spline Solution and the Chaotic Dynamics of Troeschs Problem
Autorzy:
Caglar, H.
Caglar, N.
Ozer, M.
Powiązania:
https://bibliotekanauki.pl/articles/1291812.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
05.45.Pq
02.60.-x
02.60.Lj
Opis:
A B-spline method is presented for solving the Troesch problem. The numerical approximations to the solution are calculated and then their behavior is studied and commenced. The chaotic dynamics exhibited by the solutions of Troesch's problem as they were derived by the decomposition method approximation are examined and an approximate critical value for the parameter λ is introduced also in this study. For the parameter value slightly less than λ ≈ 2.2, the solutions begin to show successive bifurcations, finally entering chaotic regimes at higher λ values. The effectiveness and accuracy of the B-spline method is verified for different values of the parameter, below its critical value, where the first bifurcation occurs.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 554-559
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
B-Spline Solution for a Convection-Diffusion Equation
Autorzy:
Caglar, H.
Caglar, N.
Ozer, M.
Powiązania:
https://bibliotekanauki.pl/articles/1194831.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.60.-x
02.60.Lj
Opis:
This paper is concerned with the numerical solution of the convection diffusion problems. A family of B-spline methods has been considered for the numerical solution of the problems. The results showed that the present method is an applicable technique and approximates the exact solution.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 548-550
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Numerical Solution of Fractional Diffusion Equation by Using Local Polynomial Regression
Autorzy:
Caglar, H.
Caglar, N.
Ozer, M.
Powiązania:
https://bibliotekanauki.pl/articles/1194848.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.60.-x
02.60.Lj
Opis:
In this paper, we apply the local polynomial regression for the solution of the one-dimensional fractional diffusion equation. The Caputo fractional derivative is used for the formulation. A numerical example is given to show the application of the present method. The effect of the fractional order (α) of the equation is illustrated by changing α from 1.01 to 1.99.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 551-553
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Upper Campanian calciclastic turbidite sequences from the Hacımehmet area (eastern Pontides, NE Turkey): integrated biostratigraphy and microfacies analysis
Autorzy:
Sari, B.
Kandemır, R.
Özer, S.
Walaszczyk, I.
Görmüş, M.
Demırcan, H.
Yilmaz, C.
Powiązania:
https://bibliotekanauki.pl/articles/138655.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Late Campanian
Calciclastic Turbidite
biostratigraphy
Eastern Pontides
kampan
biostratygrafia
Turcja
Opis:
The upper Campanian (Cretaceous) of the Hacımehmet area (south of the city of Trabzon; Eastern Pontides) is mainly composed of calciclastic turbidites. The basinal unit of the 119 m thick succession includes thin red pelagic limestone interlayers and conglomerates dominated by volcanic clasts. The overlying upper slope and lower slope units of the sequence consist of an alternation of allochthonous calcarenite/calcirudite beds and pelagic marls and mudstones. Calcarenite/calcirudite beds dominate the upper slope unit of the succession and are composed of transported material, including benthic foraminifers, red algae, bryozoan, crinoid and rudist fragments, inoceramid bivalve prisms and neritic and pelagic carbonate lithoclasts. The occurrence of Helicorbitoides boluensis (Sirel) extracted from the calcarenite/calcirudite beds indicates a Campanian age. Identifiable rudists such as Joufia reticulata Boehm, Bournonia cf. anatolica Özer, Biradiolites cf. bulgaricus Pamouktchiev and ?Biradiolites sp. from the upper slope unit of the succession indicate a late Campanian–Maastrichtian age. The planktonic foraminifers within the red pelagic limestone beds, marls and mudstones throughout the succession consist mainly of Campanian–Maastrichtian forms and suggest mainly basinal depositional conditions. The presence of Radotruncana cf. calcarata (Cushman) accompanied by Globotruncanita elevata (Brotzen) in the basinal unit of the succession indicates an early late Campanian age for the lower part of the succession. Inoceramid bivalves have been collected from the upper part of the succession. The fauna is dominated by ‘Inoceramus’ tenuilineatus Hall and Meek, 1854 and Cataceramus haldemensis (Giers, 1964); other taxa recognised are: ‘Inoceramus’ algeriensis Heinz, 1932, Platyceramus vanuxemi (Meek and Hayden, 1860), ‘Inoceramus’ cf. nebrascensis Owen, 1852, Cataceramus aff. barabini (Morton, 1834), Cataceramus gandjaensis (Aliev, 1956), and ‘Inoceramus’ sp.; the assemblage indicates the ‘Inoceramus’ tenuilineatus Zone; corresponding to the middle–late Campanian boundary interval. The uppermost part of the succession is characterized by the presence of the trace fossils Scolicia strozzii and Scolicia isp., indicating a mixed Skolithos-Cruziana ichnofacies. This ichnofacies suggests a well-oxygenated environment.
Źródło:
Acta Geologica Polonica; 2014, 64, 4; 393-418
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of Viscoelastic Materials Using Free-Layered and Sandwiched Samples: Assessment and Recommendations
Autorzy:
Ozer, M.
Koruk, H.
Sanliturk, K.
Powiązania:
https://bibliotekanauki.pl/articles/1194059.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
46.35.+z
46.80.+j
Opis:
Viscoelastic materials are widely used in many applications in practice. However, determination of the elastic and damping properties of these materials is quite difficult in the sense that the identified results may contain high degree of uncertainty. The characterization of viscoelastic materials using the Oberst beam method, based on non-contact excitation and response measurements, is revisited in this paper. The effects of signal processing parameters such as frequency resolution in Frequency Response Function (FRF) measurements, as well as the effects of various single-degree-of-freedom modal analysis methods, including circle-fit, half-power and line-fit are investigated first. Then, the modal loss factors, Young's modulus and shear modulus of some sample viscoelastic materials are identified using both the free-layered and sandwiched samples. The results obtained from different tests are compared, discussed and some recommendations are made so as to identify the damping and elastic properties of typical viscoelastic materials with better accuracy. Analyses of a large number of FRF measurements show that the selection of the appropriate signal processing parameters and the use of appropriate modal analysis method can be very significant during the identification of viscoelastic materials. By following the approach presented in this paper, the damping and elastic properties of viscoelastic materials can be identified with better accuracy using either free-layered or sandwiched samples. The material properties obtained by this approach can be used for developing valid structural models and/or for damping optimization purposes.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1251-1254
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the Crash Boxes Light Weighting with Syntactic Foams by the Finite Element Analysis
Autorzy:
Özer, H.
Can, Y.
Yazıcı, M.
Powiązania:
https://bibliotekanauki.pl/articles/1031574.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.70.Dh
62.20.-x
61.41.+e
Opis:
Light-weighting is a new scope in the automotive industry to accommodate new emission regulations. The parts produced with conventional metallic materials are replaced with parts produced by using light weight or high strength materials, to obtain light weighted equivalents of the same strength. Foam core sandwich structures, high strength steels, composite materials are the most used alternative materials. Syntactic foams that show outstanding performance in case of high-speed collisions have an excellent utility as energy absorbers in vehicle crash boxes. Syntactic foams are modeled in crash boxes at various filling rates and filling patterns in the context of this study. As results of the FEM analyses, it is observed that syntactic foams have excellent crash performance, as well as weight-reducing effect in vehicle crash boxes.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 734-737
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effects of different seedling production systems on quality of tomato plantlets
Autorzy:
Özer, H.
Powiązania:
https://bibliotekanauki.pl/articles/12200945.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Successful vegetable cultivation begins with quality seedlings. Some quantitative parameters such as stem diameter (g), seedling dry weight (g) and specific leaf area (cm2 g–1) are used to determine the quality of seedlings. In this study, the effects of different seedling production systems (traditional and floating system), organic fertilizers (M – manure, B – blood fertilizer from slaughterhouse and O – commercial organic fertilizer) and seed tray cell size (ST1 – 2.2 × 2.2 cm and ST2 – 3.1 × 3.1 cm) on seedling quality of tomato, were investigated. It was determined that the most effective results in applications of BST1 and MST2, were obtained in terms of leaf dry weight (0.39 g), stem dry weight (0.15–0.16 g) and root dry weight (0.10–0.11 g). At the end of the study, the big celled seed tray, blood and manure fertilizers were significantly higher (P ˂ 0.01) than grown in the small celled seed tray and control plants.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 5; 15-21
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioactive compounds, antibacterial and antifungal activities of two Cirsium species
Autorzy:
Gulen, D.
Sabudak, T.
Orak, H.H.
Caliskan, H.
Ozer, M.
Powiązania:
https://bibliotekanauki.pl/articles/12307832.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Asteraceae
Cirsium
Cirsium creticum
Cirsium italicum
hexane extract
antibacterial action
antifungal activity
Opis:
In the GC-MS analysis, 81 bioactive phytochemical compounds were identified in hexane extracts of Cirsium creticum and Cirsium italicum. Terpenoids constituted the main fractions of C. italicum (70.95%), while hydrocarbons were most abundant compounds of C. creticum (41.11%). The antibacterial activity and antifungal activity of extracts from two Cirsium species was tested using microdilution methods. According to the results of antibacterial activity, the highest inhibition effect of C. creticum was found on B. subtilis, E. coli and P. aeruginosa. The highest inhibition effect of C. italicum was found on B. subtilis. In the results of antifungal activity, the highest inhibition effect of C. creticum was found on P. chrysogenum and the highest inhibition effect of C. italicum was found on C. krusei. The present work is the first report on hexane extracts compounds of two Cirsium species as well as antibacterial and antifungal activities.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 5; 213-221
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nutrient and bioactive substance contents of edible plants grown naturally in Salıpazarı (Samsun)
Autorzy:
Demir, E.
Turfan, N.
Özer, H.
Üstün, N.S.
Pekşen, A.
Powiązania:
https://bibliotekanauki.pl/articles/12704686.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
This study was carried out for the determination of nutrient and bioactive substance contents of edible wild plants consumed as vegetables in Samsun’s Salıpazarı district during September 2014 and August 2016 period. In the selected villages from identified locations, 11 species that naturally grow and are consumed as vegetables such as Alcea apterocarpa Boiss., Rumex crispus L., Urtica dioica L., Trachystemon orientalis L., Oenanthe pimpinelloides L., Smilax excelsa L., Capsella bursa-pastoris L., Aegopodium podagraria L., Arum italicum Miller, Ornithogalum sigmoideum Freyn et. Sint. and Amaranthus retroflexus L. have been identified. Protein, proline, free amino acid, superoxide dismutase (SOD) activity, lipid peroxidation level (MDA), glucose, sucrose, total soluble carbohydrate, chlorophyll, total carotenoids, β-carotene, lycopene, flavonoids, and anthocyanins contents of these plants were determined as 32.79–106.40 mg/g dry weight (DW), 5.71–47.66 µmol/g DW, 29.62–61.75 µg/g DW, 82.75–240.06 IU/mg protein, 106.36–531.05 µmol/g DW, 31.96–87.24 mg/100 g DW, 10.97–25.49 mg/100 g DW, 174.3–422.2 mg/100 g DW, 7.79–25.96 mg/100 g DW, 102.01–436.93 µg/100 g DW, 115.86–459.64 µg/100 g DW, 6.38–30.28 mg/100 g DW and 10.17– 21.52 mg/100 g DW, respectively. As a result of the analyses, it was determined that there were significant differences (P < 0.01) in terms of all parameters examined among species.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 1; 151-160
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
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