Yayın tarihi için WoS İndeksli Yayınlar Koleksiyonu listeleme
Toplam kayıt 7605, listelenen: 701-720
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Mercury removal from synthetic solutions using poly (2-hydroxyethylmethacrylate) gel beads modified with poly (ethyleneimine)
(Elsevier Science BV, 2003)In this study. the Hg2+ adsorption-desorption properties of poly(ethyleneimine) (PEI)-attached poly(2-hydroxyethylmethacry late) (PHEMA) beads were investigated. Spherical PHEMA beads with an average size of 150-200 mum ... -
Power quality event detection using joint 2D-wavelet subspaces
(IEEE, 2003)In this work, we present a novel 2D representation of power system waveforms for the automatic analysis of transients. The representation is composed of a matrix whose rows are formed by time segments of digital waveforms. ... -
The microstructural features of an alumina-mullite-zirconia refractory material corroded by molten glass
(Elsevier Sci LTD, 2003)An alumina-mullite-zirconia refractory penetrated by a standard soda-lime-silica glass was statically tested at 1370 degreesC for 72 h. Microstructural features and EDAX analysis of the compositions in the corroded region ... -
Use of natural zeolites as a landfill liner
(I W M Business Services LTD, 2003)The purpose of this study is to investigate certain features of a novel material proposed to serve as an impervious liner in landfills. Various ratios of bentonites and zeolites (B/Z) compacted at optimum water content ... -
Young's modulus measurements of magnesia-spinel composites using load-deflection curves, sonic modulus, strain gauges and Rayleigh waves
(Elsevier Sci LTD, 2003)The extent of interlinking of the microcracking and a decrease in strength and modulus values were determined to be a function of both spinel particle size and volume fraction to allow calculation of thermal shock parameter, ... -
Quantitative X-ray diffraction analysis of reactive infiltrated boron carbide-aluminium composites
(Elsevier Sci LTD, 2003)Dense (> 98% of theoretical) boron carbide, (B4C)-aluminium (Al) composites were produced between 985 and 1370 degreesC by pressureless melt infiltration of Al alloys into porous B4C compacts under. argon (Ar) atmosphere. ... -
Decentralized supervisory controller design to avoid deadlock in Petri nets
(Taylor & Francis LTD, 2003)A decentralized supervisory controller design approach, using overlapping decompositions, is proposed for discrete-event systems modelled by Petri nets to avoid deadlock. In this approach, the given original Petri net is ... -
Mechanical properties and thermal shock behaviour of alumina-mullite-zirconia and alumina-mullite refractory materials by slip casting
(Elsevier Sci LTD, 2003)Strength and modulus values of slip-cast alumina-mullite-zirconia and alumina-mullite refractories have been determined as a function of quench temperature by air and water quenching. The resistance to fracture initiation ... -
The mathematical modelling of total nitrogen contamination transport via groundwater from a sugar factory in Eskisehir, Turkey
(Inderscience Enterprises LTD, 2003)In this study, mathematical modelling of the total nitrogen contamination transport in a porous medium was evaluated in order to determine the potential groundwater pollution caused by a sugar factory in the Eski(.)ehir ... -
Fixed-bed pyrolysis of Daphne (Laurus nobilis L.) seed
(Taylor & Francis Inc, 2003)Fixed-bed slow pyrolysis experiments have been conducted on a sample of daphne seed to determine the effects of pyrolysis temperature, particle size, and heating rate on the pyrolysis product yields and chemical compositions. ... -
Kinetics study of esterification of acetic acid with isobutanol in the presence of amberlite catalyst
(Elsevier Science BV, 2003)Kinetic data on the esterification of acetic acid with isobutanol have been obtained from both the uncatalyzed and heterogeneously catalyzed reactions using a stirred batch reactor in dioxane. The equilibrium constant, ... -
Investigation of the dissolution kinetics of kaolin in HCl solution
(Elsevier Science BV, 2003)Kaolin with a given size distribution was calcined at 1023 K for 2 h. The calcined samples were digested in hydrochloric acid solutions of known concentration at constant temperatures. The samples taken from the solution ... -
Production of bio-oil from biomass: Slow pyrolysis of rapeseed (Brassica napus L.) in a fixed-bed reactor
(Taylor & Francis Inc, 2003)Rapeseed (Brassica napus L.) pyrolysis experiments were performed in a fixed-bed reactor The effects of heating rate, final pyrolysis temperature, particle size, and pyrolysis atmosphere on pyrolysis product Yields and ... -
The use of waste materials in asphalt concrete mixtures
(I W M Business Services LTD, 2003)The purpose of this study was to investigate (a) the effects of rubber and plastic concentrations and rubber particle sizes on properties of asphalt cement, (b) on properties of asphalt concrete specimens and (c) the effects ... -
The effect of learning strategy on computer anxiety
(Pergamon-Elsevier Science LTD, 2003)This study investigates the effect of learning strategy training on computer anxiety and achievement among 37 students attending a computer Programming Languages II course. The study uses an experimental research model ... -
Extraction of poppy seed oil using supercritical CO2
(Inst Food Technologists, 2003)Extraction of poppy seed oil with supercritical carbon dioxide (SC-CO2) was performed and the effect of extraction conditions on oil solubility and yield as well as oil composition was evaluated. Within the temperature (50 ... -
Antioxidant and free radical scavenging activities of Rhus coriaria and Cinnamomum cassia extracts
(Akademiai Kiado, 2003)Antioxidant and free radical scavenging activities of the extracts of sumac (Rhus coriaria) fruits and cassia. (Cinnamomum cassia) cortex were studied. Plant samples were extracted with methanol:water (80:20) and an aliquot ... -
Slow, fast and flash pyrolysis of rapeseed
(Pergamon-Elsevier Science LTD, 2003)Pyrolysis experiments have been conducted on a sample of rapeseed to determine particularly the effects of pyrolysis temperature, heating rate, particle size and sweep gas flow rate on the pyrolysis product yields and their ... -
Fatty acid composition of pistachio nuts in Turkey
(Consultants Bureau, 2003)In this study oil yields and fatty acid compositions in the kernels of two varieties (Uzun and Siirt) of pistachio grown in different region of Turkey were investigated. Kernel oils were obtained by Soxhlet extraction using ... -
Interactions between a leadless glaze and a biscuit fired bone China body during glost firing - part III: effect of glassy matrix phase
(Elsevier Sci LTD, 2003)As the final part of the study, the interactions between a commercial leadless glaze and a simulated bone china body glass during glost firing at different temperatures have been investigated. Advanced techniques such as ...
