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101.
İbrahim Doymaz 《Heat and Mass Transfer》2011,47(3):277-285
The effect of blanching and drying temperature (50, 60 and 70°C) on drying kinetics and rehydration ratio of sweet potatoes
was investigated. It was observed that both the drying temperature and blanching affected the drying time and rehydration
ratio. The logarithmic model showed the best fit to experimental drying data. The values of effective moisture diffusivity
and activation energy ranged from 9.32 × 10−11 to 1.75 × 10−10 m2/s, and 22.7–23.2 kJ/mol, respectively. 相似文献
102.
İsa Karaman Hayreddin Gezegen Mustafa Ceylan Merve Dilmaç 《Phosphorus, sulfur, and silicon and the related elements》2013,188(5):580-586
Abstract In this study, a series of novel β-mercapto carbonyl derivatives (3a–j) was prepared by addition of thiophenol (2) to chalcones (1a–j) in the presence of catalytic amount of iodine (10 mol%) in CH2Cl2. Antibacterial and antifungal in vitro properties of the synthesized compounds were tested against some human pathogenic microorganisms by employing the disk diffusion technique. For the most active compounds, also minimum inhibitory concentrations (MICs) were determined. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file. 相似文献
103.
İlke Taşçıoğlu Adem Tataroğlu Akif Özbay Şemsettin Altındal 《Radiation Physics and Chemistry》2010,79(4):457-461
The effect of γ-ray exposure on the metal–insulator–semiconductor (MIS) structures has been investigated using the electrical characteristics at room temperature. The MIS structures are irradiated with 60Co γ-ray source. The energy distribution of interface states was determined from the forward bias I–V characteristics by taking into account the bias dependence of the effective barrier height and ideality factor. The value of series resistance decreases with increasing dose. Experimental results confirmed that γ-ray irradiation have a significant effect on electrical characteristics of MIS structures. 相似文献
104.
Orhan Özdemir Mustafa Anutgan Tamila Aliyeva-Anutgan İsmail Atılgan Bayram Katırcıoğlu 《Journal of Non》2009,355(14-15):851-859
Both dc and ac transport characteristics of plasma enhanced chemical vapor deposited (PECVD) boron nitride (BN) thin film was investigated by dc current vs. dc voltage measurement at different temperatures and admittance vs. gate voltage at various frequencies/temperatures, respectively. MIM ≡ metal (Al)-insulator (BN)-metal (Al) or MIS ≡ metal (Al)-BN-semiconductor (p-Silicon) test devices were conventionally produced. Both conductivity anisotropy and dc/ac detailed transport mechanism were analyzed within the frame of a turbostratic structure (t-BN), interfacing the substrate by a thin amorphous layer (a-BN). This defective BN film has been justified by both infrared (IR) analysis and indirectly by the resulting electrical transport behavior. Transport and its variations as a function of temperature/frequency are in agreement with a hopping mechanism across Gauss-like energy distributed localized deep traps. 相似文献
105.
106.
Murat Aydemir Akın Baysal Nevin Gürbüz İsmail Özdemir Bahattin Gümgüm Saim Özkar Nagihan Çaylak Leyla Tatar Yıldırım 《应用有机金属化学》2010,24(1):17-24
Three new (N‐diphenylphosphino)‐isopropylanilines, having isopropyl substituent at the carbon 2‐ (1) 4‐ (2) or 2,6‐ (3) were prepared from the aminolysis of chlorodiphenylphosphine with 2‐isopropylaniline, 4‐isopropylaniline or 2,6‐diisopropylaniline, respectively, under anaerobic conditions. Oxidation of 1,2 and 3 with aqueous hydrogen peroxide, elemental sulfur or gray selenium gave the corresponding oxides, sulfides and selenides (Ph2P?E)NH? C6H4? 2‐CH(CH3)2, (Ph2P?E)NH? C6H4? 4‐CH(CH3)2 and (Ph2P?E)NH? C6H4? 2,6‐{CH(CH3)2}2, where E = O, S, or Se, respectively. The reaction of [M(cod)Cl2] (M = Pd, Pt; cod = 1,5‐cyclooctadiene) with two equivalents of 1,2 or 3 yields the corresponding monodendate complexes [M((Ph2P)NH? C6H4? 2‐CH(CH3)2)2Cl2], M = Pd 1d, M = Pt 1e, [M((Ph2P)NH? C6H4? 4‐CH(CH3)2)2Cl2], M = Pd 2d, M = Pt 2e and [M((Ph2P)NH? C6H4? 2,6‐(CH(CH3)2)2)2Cl2], M = Pd 3d, M = Pt 3e, respectively. All the compounds were isolated as analytically pure substances and characterized by NMR, IR spectroscopy and elemental analysis. Furthermore, representative solid‐state structure of [(Ph2P?S)NH? C6H4? 4‐CH(CH3)2] (2b) was determined using single crystal X‐ray diffraction technique. The complexes 1d–3d were tested and found to be highly active catalysts in the Suzuki coupling and Heck reaction, affording biphenyls and stilbenes, respectively. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
107.
İlknur Üstündağ Aslı Erkal Tamer Koralay Yusuf Kağan Kadıoğlu Seungwon Jeon 《Journal of Analytical Chemistry》2016,71(7):685-695
We obtained a gold nanomaterial/graphene oxide-modified glassy carbon electrode and characterized it using transmission electron microscope, scanning electron microscope, cyclic voltammetry (CV), and X-ray photoelectron spectroscopy techniques. A response of the electrode using square wave anodic stripping voltammetry for Pb2+, Cu2+, and Hg2+ was found linear in the range from 1 × 10–7 to 1 × 10–11 M. The detection limits of Pb2+, Cu2+ and Hg2+ were 0.14, 0.5 and 1.2 pM, respectively. The method was applied to the simultaneous determination of Pb2+, Cu2+ and Hg2+ in seawater samples from a coastal region of Anatolia, and the results corresponded well with the values obtained by inductively coupled plasma-optical emission spectroscopy. 相似文献
108.
İdris Dağ Ali Şahin Alper Korkmaz 《Numerical Methods for Partial Differential Equations》2010,26(6):1483-1503
The Galerkin method is used with quadratic B‐spline base functions to obtain the numerical solutions of Fisher's equation which is a one dimensional reaction‐diffusion equation. To observe the effects of reaction and diffusion, four test problems related to pulse disturbance, step disturbance, super‐speed wave and strong reaction are studied. A comparison is performed between the obtained numerical results and some earlier studies. © 2009 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq, 2010 相似文献
109.
Cemil İbiş Nihal Onul 《Phosphorus, sulfur, and silicon and the related elements》2013,188(12):2787-2792
The substituted 1,2-dibromomethanethio nitrodiene 2 was obtained from the addition of bromine to S-substituted nitrodien 1 in carbon tetrachloride. N, S-substituted compounds 4a–h were synthesized from the reactions of compound 2 with several substituted piperazine derivatives 3a–h in dichloromethane. N, S-substituted compounds 6 and 8 were synthesized from the reaction of 2 with morpholine ( 5 ) and thiomorpholine ( 7 ) in dichloromethane, respectively. Dibutadienyl piperazines 10 , 12 , and 14 were synthesized from the reactions of 2 with homopiperazine ( 9 ), piperazine ( 11 ), and 2,5-dimethylpiperazine ( 13 ), respectively. 相似文献
110.