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Toplam kayıt 31, listelenen: 1-10
Essential oil composition of two Centaurea L. (Asteraceae) species from Turkey.
(2015)
In this study, aerial parts of C. cynaus L. and C. depressa Bieb. were analysed by HS-SPME/GC-MS. As a result
thirty five and thirty seven components were identified representing 92.3% and 91.1% of the oil, respectively ...
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 ...
Intelligent design of the post-listening tasks in multimedia listening software
(2015)
The objective of this chapter is to clearly demonstrate through concrete examples how affective and efficient post-listening tasks for autonomous intermediate and upper-intermediate (intermediate) language learners can be ...
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 ...
Essential oil composition of Ferula orientalis L. from different locations of Turkey and a chemotaxonomic approach
(2015)
In this study, essential oil composition of Ferula orientalis L. from three different locations of Turkey have been studied to determine chemotaxonomy based on essential oil characters. For this purpose, aerial parts of ...
THE FLORA OF DIKME UPLAND AND SURROUNDINGS, BINGOL (CENTER).
(2015)
This research was carried out to determine the flora of Dikme upland and surroundings, Bingol (Center). 1255 plant specimens were collected from the research area. 337 genera and total 707 taxa belong to the 75 families ...
Boost konvertör ile PFC ve THD analizi
(2015-05-16)
Boost konvertörün diğer topolojilere üstünlüğünden dolayı bu çalışmada güç katsayısı düzeltme ve harmonik bozulmayı düşürmek için boost konvertör topolojisi kullanılmıştır. Tek fazlı ortalama akım mod kontrollü devre ...
Measurement of Li X-ray fluorescence production cross sections and intensity ratios of some elements at 59.54 keV
(NRC Research Press, 2015-02-13)
The Li (i = l, α, β, γ) X-ray production cross section and Lα/Ll, Lα/Lβ, Lα/Lγ, Ll/Lβ, Ll/Lγ, and Lβ/Lγ intensity ratio values for Yb, Ta, W, Hg, Tl, Pb, Bi, Th, and U have been determined using an excitation geometry at ...
Kinematic coefficient ratios, anisotropy parameters, and polarization degrees of L3 X-ray transitions of Bi, Pb, Ta, Lu, and Yb
(NRC Research Press, 2015-03-11)
The anisotropy parameter values β of the L shell fluorescent X-rays (Lι (L3-M1), Lβ6 (L3-N1), Lα1,2 (L3-M5,4) and Lβ2,15 (L3-N5,4) of Bi, Pb, Ta, Lu, and Yb excited by 22.6 keV photons were measured. These values were used ...
Bazı Stachys Taksonlarının Uçucu Yağ ve Yağ Asidi Kompozisyonu; Kemotaksonomik Bir Yaklaşım.
(2015)
Giriş: Lamiaceae (Labiatae) familyasındaki taksonların çoğunluğu sekonder metabolitler ve özellikle de çok ilginç doğal bitkisel ürünler olan uçucu yağlar bakımından zengin olup bu özelliklerinden dolayı birçok biyolojik ...