Güncel Gönderiler: Teknik Bilimler Meslek Yüksekokulu
Toplam kayıt 195, listelenen: 181-195
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Chemical composition of Endemic Inula macrocephala Boiss. and Kotschy ex Boiss. from Turkey
(2013)The essential oil components of aerial parts of Inula macrocephala Boiss. and Kotschy ex Boiss. was investigated by GC and GC-MS. The yield of oil is ca. 0.13 mL/100 g. Thirty five components were identified representing ... -
Essential oils of Three Ziziphora L. Taxa from Turkey and Their Chemotaxonomy
(2013)The essential oil aerial parts of Ziziphora clinopodioides Lam., Z. persica Bunge and Z. tenuior L. were investigated by GC and GC-MS. The yield of oils are ca. 0.30, 0.35 and 0.40 mL/100 g, respectively. Thirty seven, ... -
Chemical composition of essential oil of Tripleurospermum parviflorum (Willd.) Pobed (Asteraceae) from Turkey
(2012)The chemical composition of essential oil of Tripleurospermum parviflorum (Asteraceae) from Turkey was analyzed by gas chromatography and gas chromatography-mass spectrometry system. The yield of the oil is 0.3 mL/100 g. ... -
Chemical composition of essential oil of Senecio vernalis Waldst. Et Kit. (Asteraceae) from Turkey
(2012)The chemical composition of essential oil of Senecio vernalis (Asteraceae) from Turkey was analyzed by GC and GC-MS system. The yield of the oil is 0.4 ml. The essential oil composition of S.vernalis was studied and ... -
Chemical analyses of the seeds of some forage legumes from Turkey. A chemotaxonomic approach
(2011-12)The seeds of six forage legumes (Leguminosae) were investigated for their protein, tannin contents and fatty acid compositions. The protein contents of forage legume seeds were found to be between 23.1 and 37.2%. On the ... -
Chemical composition of essential oil of Nepeta nuda L. subsp. nuda (Lamiaceae) from Turkey
(2011-02)The chemical composition of the essential oil of dried aerial parts of Nepeta nuda L. subsp. nuda (Lamiaceae) from Turkey were analyzed by GC and GC-MS. The essential oil of Nepeta nuda subsp. nuda were obtained by ... -
Composition of the volatile oils of two Anthemis L. taxa from Turkey
(2011-08)The essential oils of water-distilled aerial parts of Anthemis pseudocotula and Anthemis cretica subsp. pontica (Asteraceae) were analysed by GC-MS. As a result thirty-five and forty components were identified representing ... -
Essential oils of two varieties of Gundelia tournefortii L. (Asteraceae) from Turkey
(2010)The chemical composition of the essential oils of dried aerial parts of two varieties of Gundelia tournefortii L. (var. tournefortii and var. armata Freyn and Sint.) (Asteraceae) from Turkey were analyzed by GC and GC-MS ... -
Determination of K shell absorption jump factors and jump ratios of 3d transition metals by measuring K shell fluorescence parameters
(Elsevier Ltd., 2015-01-01)Energy dispersive X-ray fluorescence technique (EDXRF) has been employed for measuring K-shell absorption jump factors and jump ratios for Ti, Cr, Fe, Co, Ni and Cu elements. The jump factors and jump ratios for these ... -
Determination of K-shell absorption jump factors and jump ratios for La2O3, Ce and Gd using two different methods
(2015-02-01)The K shell absorption jump factors and jump ratios for La2O3, Ce and Gd samples have been determined using the gamma or X-ray attenuation and EDXRF methods. It is the first time that the K shell absorption jump factor and ... -
Measurement of mass attenuation coefficients by Si(Li), NaI(Tl) and Cd(Tl) detectors
(Transworld Research Network, 2012-01-01)Mass attenuation coefficients of the some elements were determined for two photon energies using different three detectors. The samples were irradiated using 10 mCi Cd-109 and 100 mCi Am-241 radioactive point sources. ... -
Measurement of L subshell fluorescence cross sections and intensity ratios of heavy elements at 22.6keV
(Elsevier Ltd., 2011-06-01)The L X-ray fluorescence cross sections (σL1, σLα, σσLη, σLΒ, σLΒ6, σLΒ2,4,15, σLΒ1,3, σLγ, σLγ1, σLγ2,3,6,8, σLγ4,4' and σLγ5) and ILα/ILi (i=l, η, Β6, Β2,4,1,5, Β1,3, γ, γ1, γ2,3,6,8, γ4,4' and γ5 intensity ratios for ... -
Measurement of L subshell fluorescence yields for high-Z elements excited by 22.6keV photons
(Elsevier Ltd., 2012-03-01)The σ L1, σ L2 and σ L3 subshell X-ray production cross sections for U, Th, Bi, Pb, Tl, Hg, Au, Pt, Os, W, Ta, Lu, Yb and Er have been measured at 22.6keV incident photon energy. The measurements were performed using a ... -
Determination of L X-ray fluorescence parameters for Ho, Lu, W, Hg and Bi
(Elsevier Ltd, 2014-07-01)In this work, L X-ray fluorescence cross sections, L sub-shell fluorescence yields and level widths and radiative vacancy transfer probabilities of L sub-shells to Mi, Ni and Oi sub-shells were measured for the elements ... -
Measurement of magnetic quadrupole-electric dipole mixing ratios and angular distribution parameters in atomic inner-shell transitions
(Materials Science and Technology Conference and Exhibition 2013, MS and T 2013, 2013-10-27)In studies of the angular distribution of the magnetic L 3-subshell X-ray transitions it has been generally assumed that observed radiations consist of pure electric dipole transitions and contributions from higher-order ...
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