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Now showing items 3548-3567 of 5191
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Palladium catalyzed alkoxycarbonylation reactions of 2-en-4-yne carbonates
(İzmir Institute of Technology, 2011)Homogeneous catalysis relaying on transition metal complexes has led to innovation in organic chemistry. Palladium complexes are the most versatile and used extensively in organic synthesis. One type of these reactions ... -
Palladium catalyzed cross coupling reactions of alkenyl epoxides and organoboronic acid esters
(Izmir Institute of Technology, 2018-07)In organic chemistry, it is a useful method to form a new allylic compounds as a result of 1-3 substitution reactions of allylic compounds which have a good leaving group. These reactions usually require a metal catalyst ... -
Palladium catalyzed reactions of 2-EN-4-YNE carbonates with organoboronic acids
(İzmir Institute of Technology, 2011)Recently, transition metal catalyzed carbon-carbon bond formation reactions gain numerous importance in organic chemistry. Especially, palladium catalyzed carbon-carbon bond formation reactions provide lots of advantages ... -
Palladium nanoparticles by electrospinning from poly(acrylonitrile-co-acrylic acid)-PdCl2 solutions. Relations between preparation conditions, particle size, and catalytic activity
(American Chemical Society, 2004-03)Catalytic palladium (Pd) nanoparticles on electrospun copolymers of acrylonitrile and acrylic acid (PAN-AA) mats were produced via reduction of PdCl2 with hydrazine. Fiber mats were electrospun from homogeneous solutions ... -
Palladium-catalyzed alkoxycarbonylation of (Z)-2-En-4-yn carbonates leading to 2,3,5-trienoates
(American Chemical Society, 2011-02-18)Pd(0)-catalyzed carbonylation of (Z)-2-en-4-yn carbonates in the presence of a balloon pressure of CO in an alcohol donates vinylallenyl esters with an exclusively E-configuration and in high yields. The fact that no such ... -
Palladium-catalyzed alkoxycarbonylation of conjugated enyne oxiranes: A diastereoselective method for the synthesis of 7-hydroxy-2,3,5-trienoates
(American Chemical Society, 2015-06-05)Palladium-catalyzed alkoxycarbonylative 1,5-substitution of conjugated enyne oxiranes provides a diastereoselective route to (E)-configured 7-hydroxy-2,3,5-trienoates. The reactions proceeded in a highly stereoselective ... -
Palladium-catalyzed alkoxycarbonylation reactions of (E)-2-en-4-yne carbonates
(İzmir Institute of Technology, 2013)Transition metal-catalyzed carbon-carbon bond formation reactions are well-rounded methods to synthetic organic chemistry. One type of these reactions is the alkoxycarbonylation reactions performed in the presence of a ... -
Palladium-catalyzed stereo-selective 1.2-addition reactions of γ,δ-epoxy-α,β-unsaturated esters with organoborons
(Izmir Institute of Technology, 2018-07)Transition metal-catalyzed SN2-type addition reactions of allylic compounds having good leaving groups is a valuable reaction procedure in organic chemistry. Vinyl epoxides, as a derivative of allylic compounds, are ... -
Parallelization of a novel frequent itemset hiding algorithm on a CPU-GPU platform
(Izmir Institute of Technology, 2014)Data mining is used to extract useful information from large data. But the organizations which mine the data might not be the owner of the data. So, before the owners can make their data accessible for data mining they ... -
Parameter estimation for linear dynamical systems with applications to experimental modal analysis
(Izmir Institute of Technology, 2008)In this study the fundamentals of structural dynamics and system identification have been studied. Then some fundamental parameter estimation algorithms in the literature are provided. These algorithms will be applied to ... -
A parametric study on isobaric adsorption process in a closed adsorbent bed
(Elsevier, 2010-05)A numerical study on heat and mass transfer in an annular adsorbent bed filled with adsorbent granules for an isobaric adsorption process is performed. In order to reduce the number of independent parameters that influences ... -
Parça tabanlı eğitimin evrişimli yapay sinir ağları ile nesne konumlandırma üzerindeki etkisi
(IEEE, 2017)Evrişimli yapay sinir ağları (EYSA) bir derin öğrenme yöntemi olarak son yıllarda imge sınıflandırma ve nesne konumlandırma başta olmak üzere bilgisayarlı görü problemlerinin çözümü konusunda birçok başarı elde etmiştir. ... -
Partial Al foam filling of commercial 1050H14 Al crash boxes: The effect of box column thickness and foam relative density on energy absorption
(Elsevier, 2010-07)The crushing behavior of partially Al closed-cell foam filled commercial 1050H14 Al crash boxes was determined at quasi-static and dynamic deformation velocities. The quasi-static and dynamic crushing of the boxes were ... -
Partial and analog feedback for MISO precoding systems
(IEEE, 2007)We consider a multiple input single output antenna system with a feedback link. While most of the previous works have considered perfect feedback channels, in this paper, we evaluate the impact of a noisy feedback channel ... -
Partial purification and characterization of polyhenol oxidase from thermophilic Bacillus sp.
(Izmir Institute of Technology, 2009)Polyphenol oxidases are enzymes that catalyze the oxidation of phenolic compounds using molecular oxygen. The ability of polyphenol oxidases to act on phenolic compounds makes them highly useful biocatalysts for various ... -
Partial purification and kinetic characterization of mushroom stem polyphenoloxidase and determination of its storage stability in different lyophilized forms
(Elsevier, 2007-06)Monophenolase (1011 ± 626 U/g AP) and diphenolase activities (5163 ± 3059 U/g AP) of PPO in acetone powders (APs) of different mushroom stems varied considerably. However, the limited variation of average dipenolase (L-DOPA) ... -
Partial purification and preparation of bovine lactoperoxidase and characterization of kinetic properties of its immobilized form incorporated into cross-linked alginate films
(Elsevier, 2007)Lactoperoxidase (LPS), purified directly from bovine rennet whey by Toyopearl-SP cation-exchange chromatography and lyophilized by using dextran as supporting material, maintained almost 70 and 60% of its activity after ... -
Partial purification of a polygalacturonase from a new Aspergillus sojae mutant and its application in grape mash maceration
(Wiley, 2017-03)The use of polygalacturonase (PG) preparations in winemaking promotes the release of phenolic compounds. A PG from a new source, Aspergillus sojae mutant, was semi-purified and tested for grape mash maceration. Crude extract ... -
Partial purification of hen egg white lysozyme by ethanol precipitation method and determination of the thermal stability of its lyophilized form
(TÜBİTAK, 2007)Lysozyme was partially purified from hen egg white by precipitation of non-lysozyme protein impurities during incubation in the prence of ethanol. The thermal stability of the obtained partially purified enzyme was also ... -
Participatory planning support system for assessment of spatial conflicts in İzmir Peninsula
(Izmir Institute of Technology, 2014)Development strategies and their possible impacts over time as a consequences of proposed spatial development are one of the main concerns of planners in planning process. Understanding the impact of these changes on ...
