Yayın tarihi için WoS İndeksli Yayınlar Koleksiyonu listeleme
Toplam kayıt 7605, listelenen: 561-580
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Compositions of the essential oils of four Helichrysum species from Madagascar
(Allured Publ Corp, 2002)The chemical composition of four commercially available Helichrysum oils obtained from, H. bracteiferum (DC.) Humbert, H. cordifolium DC. H. hypnoides (DC.) R. Vig et Humbert and H. rusillonii Hochr., respectively of ... -
Micro-distilled volatile compounds from Ferulago species growing in western Turkey
(Swets Zeitlinger Publishers, 2002)Twelve Ferulago (Apiaceae) species growing in Turkey, viz. F. asparagifolia Boiss., F. aucheri Boiss., F. confusa Velen., F. galbanifera (Miller) W Koch., F. humilis Boiss., F. idaea N. Ozhatay et E. Akalm, F macrosciadia ... -
Characterisation of biscuit fired bone china body microstructure. Part II: Transmission electron microscopy (TEM) of glassy matrix
(Elsevier Sci LTD, 2002)In this second part oft lie study, electron transparent specimens of the biscuit fired bone china body were prepared for a conventional transmission electron microscopy (TEM) study. The crystalline phases present in the ... -
The influence of zircon on the mechanical properties and thermal shock behaviour of slip-cast alumina-mullite refractories
(Elsevier Science BV, 2002)Mechanical properties of slip-cast alumina-mullite (AM) refractories were improved significantly by the addition of similar to 2-mu-m zircon (ZrSiO4) particles. Fracture behaviour showed mainly transgranular, with some ... -
Textured alumina ceramics by uniaxial pressing
(Trans Tech Publications LTD, 2002)Highly textured, dense alumina ceramics were fabricated by a processing route which utilizes a mixture of Al metal powder, alumina powder, alumina platelet (template) particles and a liquid phase former. The process involves ... -
Characterisation of biscuit fired bone china body microstructure. Part 1: XRD and SEM of crystalline phases
(Elsevier Sci LTD, 2002)As a ceramic material bone china is a highly specialised product and is the basis of the world's most attractive and expensive types of tableware, mainly due to its translucency, whiteness, bright glaze, decoration quality, ... -
Transmission electron microscopy of SrO containing multi-cation doped alpha-SiAlON ceramics
(Trans Tech Publications LTD, 2002)An advantage of alpha-SiAlON is that it can accommodate cations of sintering additives and hence reduces the amount of deleterious remnant intergranular amorphous phase. However, it is believed that relatively large cations ... -
Effects of different Si3N4 starting powders and sintering conditions on the grain morphology and mechanical properties of alpha-SiAlON ceramics
(Trans Tech Publications LTD, 2002)Nitrogen rich yttrium-cerium containing multi-cation alpha -SiAlON starting compositions have been prepared by gas pressure sintering using "conventional" alpha -Si3N4 or alpha-beta Si3N4 containing powder. The effect of ... -
The essential oils of Thymus migricus and T fedtschenkoi var. handelii from Turkey
(John Wiley & Sons LTD, 2002)The essential oils of Thymus migricus Klokov et Des.-Shost. and T. fedtschenkoi Ronniger var. handelii (Ronniger) Jalas were obtained by hydrodistillation, and analysed by GC-MS. The main components in the essential oils ... -
Antimicrobial screening of Mentha piperita essential oils
(American Chemical Society, 2002)Essential oils of peppermint Mentha piperita L. (Lamiaceae), which are used in flavors, fragrances, and pharmaceuticals, were investigated for their antimicrobial properties against 21 human and plant pathogenic microorganisms. ... -
Hydrothermal synthesis of tabular perovskite particles
(Trans Tech Publications LTD, 2002)Phase pure perovskite lead titanate and lead zirconate titanate powders were produced by hydrothermal synthesis. Reaction temperature and time are critical processing parameters for formation of phase-pure perovskite ... -
Improvement of elongated alpha-SiAlON ceramics by variation of the processing conditions and amounts of additives
(Trans Tech Publications LTD, 2002)Two types of Y-alpha -SiAlON composition, with different amounts of additional liquid phase were densified in a gas pressure sintering furnace using three different sintering cycles. One series of samples was heated up to ... -
A transmission electron microscope investigation of the effect of lead acetate on the hepatopancreatic ceca of Gammarus pulex
(Elsevier Science BV, 2002)The freshwater Amphipod Gammarus pulex is a sensitive indicator organism for environmental contamination. In this study, effects of heavy metal lead acetate were investigated by using electron microscopy techniques. Control ... -
Electropolymerization and in situ sulfonation of aniline in water-acetonitrile mixture containing FSO3H
(Elsevier Science Sa, 2002)In situ sulfonation reaction of aniline was carried out in water and water-acetonitrile mixture by changing both aniline and fluorosulfonic acid (FSO3H) concentrations. The optimum conditions for the polymer formation was ... -
A note on a theorem of Rantzer
(John Wiley & Sons LTD, 2002)In this note we fill the missing cases of a theorem of Rantzer on the relationship between n-convex directions and the growth condition. We mainly show that if a second or a third order polynomial is a 3-convex direction, ... -
Poly(hydroxyethyl methacrylate-co-methacrylamidoalanine) membranes and their utilization as metal-chelate affinity adsorbents for lysozyme adsorption
(Vsp BV, 2002)Different adsorbents have been reported in the literature for protein purification. The authors have developed a novel and new approach to obtain high protein adsorption capacity utilizing a 2-methacrylamidoalanine-containing ... -
Preparation of poly(hydroxyethyl methacrylate-co-methacrylamidohistidine) beads and its design as a affinity adsorbent for Cu(II) removal from aqueous solutions
(Elsevier Science BV, 2002)Different metal-complexing ligands carrying synthetic adsorbents have been reported in the literature for heavy metal removal. We have developed a novel and new approach to obtain high metal adsorption capacity utilizing ... -
Preparation of cibacron blue F3GA-attached polyamide hollow fibers for heavy metal removal
(John Wiley & Sons Inc, 2002)Dye-affinity adsorption has been used increasingly for heavy metal removal. Synthetic hollow fibers have advantages as support matrices in comparison to conventional bead supports because they are not compressible and they ... -
Electrochemical copolymerization of aniline and anilinesulfonic acids in FSO3H/acetonitrile solution
(John Wiley & Sons Inc, 2002)The effects of 2-aminobenzenesulfonic acid (orthanilic acid), 3-aminobenzenesulfonic acid (metanilic acid), and 4-aminobenzenesulfonic acid (sulfanilic acid) on the electropreparation and properties of polyaniline (PANI) ... -
Quantum chemical studies on some 1,2,4-triarylsubstituted imidazoles
(Elsevier Science BV, 2002)The geometries, proton affinities and thermodynamic properties of some 1,2,4-triarylsubstituted imidazole derivatives were calculated with full geometry optimization using AM1 and PM3 methods in aqueous phase. A possible ...