Yayın tarihi için WoS İndeksli Yayınlar Koleksiyonu listeleme
Toplam kayıt 7605, listelenen: 581-600
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Investigation of acid-base behaviour of some 2-pyridylbenzimidazoles using semi-empirical methods
(Elsevier Science BV, 2002)Acid-base behaviour of some 2-(n'-pyridyl) benzimidazoles (n' = 2,3,4) have been studied in order to search the protonation site and to predict pK(a) values of these molecules both in gas and aqueous phases using semi-empirical ... -
Heavy metal ion adsorption properties of methacrylamidocysteine-containing porous poly(hydroxyethyl methacrylate) chelating beads
(Multi Science Publ Co LTD, 2002)Details of the adsorption performance of poly(2-hydroxyethylmethacrylate-methacrylamidocysteine) [p(HEMA-MAC)] beads towards the removal of heavy metal ions from aqueous solution were studied. The metal-complexing ligand ... -
Spectroscopic determination of acid dissociation constants of some biologically active 6-phenyl-4,5-dihydro-3(2H)-pyridazinone derivatives
(American Chemical Society, 2002)The acid dissociation constants, pK(a), of twelve biologically active 6-phenyl-4,5-dihydro-3(2H)-pyridazinone derivatives were determined using spectroscopic techniques. Elucidation of the structure-reactivity relationships ... -
The determination of levofloxacin by flow injection analysis using UV detection, potentiometry, and conductometry in pharmaceutical preparations
(Pergamon-Elsevier Science LTD, 2002)A flow injection analysis (FIA) using UV detection, potentiometry and conductometry for levofloxacin (LVF) are described in this study. The best solvent system was found to consist of 0.2 V acetate buffer at pH 3 having ... -
The acidities of some indoles
(Elsevier Science BV, 2002)We wish to present an experimental and theoretical study for the estimation of pK(a) values of some 1-, 2- and 1,2-substituted indoles in aqueous solution by spectroscopic and semiempirical methods. The all possible ... -
Electrochemical polymerization of acetylene with copper catalyst on platinum and copper electrodes
(Elsevier Science Sa, 2002)Acetylene was electrochemically polymerized cathodically at -0.60 V (versus Ag/AgCl) in the presence of copper(I)perchlorate catalyst in acetonitrile containing tetrabutylammonium perchlorate (TBAP) at room temperature ... -
Comparison of adsorption performances of metal-chelated polyamide hollow fibre membranes in lysozyme separation
(Elsevier Science BV, 2002)Commercially available microporous polyamide hollow fibres are modified by acid hydrolysis to activate the reactive groups and subsequently binding of the ligand, i.e. Cibacron Blue F3GA. Then the Cibacron Blue F3GA-derived ... -
Affinity separation of plasma proteins using a newly synthesized methacrylamidoalanine incorporated porous pHEMA membranes
(Marcel Dekker Inc, 2002)In this study, we synthesized a novel adsorbent to obtain high protein-adsorption capacity utilizing 2-methacrylamidoalanine (MAAL) containing membrane. Amino acid-ligand MAAL was synthesized by using methacrylochloride ... -
Adsorption of Ni2+ from aqueous solutions by novel polyethyleneimine-attached poly(p-chloromethylstyrene) beads
(John Wiley & Sons Inc, 2002)In this study Ni2+ adsorption properties of polyethyleneimine (PEI)-attached poly(p-chloromethylstyrene) (PCMS) beads were investigated. Spherical beads with an average size of 186 gm were obtained by the suspension ... -
Electrochemical synthesis of self-doped polyaniline in fluorosulfonic acid/acetonitrile solution
(Elsevier Science Sa, 2002)Electrochemical formation of self-doped sulfonated polyaniline (SPAN) was carried out in acetonitrile-containing anhydrous fluorosulfonic acid (FSO3H). Fluorosulfonic acid was used as both sulfonation reagent for aniline ... -
Decentralized control strategies for dynamic routing
(Wiley-Blackwell, 2002)The routing problem in multi-destination data Communication networks is considered. A dynamic model, Which can incorporate arbitrary. different, time-varying processing delays at different nodes, is developed to describe ... -
Fast pyrolysis of sunflower-pressed bagasse: Effects of sweeping gas flow rate
(Taylor & Francis Inc, 2002)Sunflower (Helianthus annus L.)-pressed bagasse pyrolysis experiments were performed in a fixed-bed tubular reactor. The effects of nitrogen flow rate and final pyrolysis temperature on the pyrolysis product yields and ... -
Bio-oil production from pyrolysis and steam pyrolysis of soybean-cake: product yields and composition
(Pergamon-Elsevier Science LTD, 2002)The slow pyrolysis of soybean cake in a fixed-bed reactor was investigated under three different atmospheres: static, for determining the effects of pyrolysis temperature and particle size, nitrogen and steam. The liquid ... -
The production and evaluation of bio-oils from the pyrolysis of sunflower-oil cake
(Pergamon-Elsevier Science LTD, 2002)Sunflower (Helianthus annus L.)-oil cake pyrolysis experiments were achieved in a fixed-bed tubular reactor. The effects of nitrogen flow rate and final pyrolysis temperature on the pyrolysis product yields and chemical ... -
Production and characterization of pyrolysis liquids from sunflower-pressed bagasse
(Elsevier Sci LTD, 2002)Pyrolysis experiments on sunflower (Helianthus annus L.)-pressed bagasse were performed in a fixed-bed tubular reactor. The effects of nitrogen flow rate and final pyrolysis temperature on the pyrolysis product yields and ... -
Fixed-bed pyrolysis of safflower seed: influence of pyrolysis parameters on product yields and compositions
(Pergamon-Elsevier Science LTD, 2002)Fixed-bed slow pyrolysis experiments have been conducted on a sample of safflower seed to determine particularly the effects of pyrolysis temperature, heating rate, particle size and sweep gas flow rate on the pyrolysis ... -
Biomass to bio-oil via fast pyrolysis of cotton straw and stalk
(Taylor & Francis Inc, 2002)Cotton straw and stalk were thermo-chemically processed by fast pyrolysis under different conditions in a fixed tubular reactor. Fast pyrolysis studies were carried out under sweeping gas atmosphere in two groups. The ... -
Translation criticism from the viewpoint of textlinguistics and stylistics: A preliminary study
(Bizim Buro Basimev Yay Dag San Tic LTD Sti, 2003)Translation Criticism from the viewpoint of Textlinguistics and Stylistics: A Preliminary Study Translation of ST pragmatic and semantic units as well as ST (source text) syntactic units is considered very important for ... -
Results of postoperative radiotherapy in the treatment of 29 uterine sarcoma patients
(Pensiero Scientifico Editor, 2003)Aims and background: The objective of this study was to evaluate the results of surgery combined with postoperative radiotherapy (FIT) in patients with uterine sarcoma in order to describe the patterns of relapse and to ... -
Antimicrobial compounds from Pimpinella species growing in Turkey
(Georg Thieme Verlag Kg, 2003)A new, 4-(2-propenyl)-phenyl angelate (1) and four known phenylpropanoids (2-5), were isolated from Pimpinella isaurica, a species endemic in Turkey. One new sesquiterpene, 1-methyl-4-(5-methyl-1-methylenehex-4-enyl)-7-o ...