Yayın tarihi için WoS İndeksli Yayınlar Koleksiyonu listeleme
Toplam kayıt 7605, listelenen: 521-540
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Phase development of barium titanate from chemically modified-amorphous titanium (hydrous) oxide precursor
(Elsevier Sci LTD, 2002)A synthesis procedure for barium titanate involving a chemically modified titanium precursor has been developed. Using a titanium isopropoxide precursor modified with acetylacetone and barium acetate, coprecipitated gels ... -
The impact of financial system development on business cycles volatility: cross-country evidence
(Louisiana State University Pr, 2002)This paper reveals cross-country evidence on how the development of the financial system affects business cycle's volatility. The link between credit markets and economic activity has been the focus of extensive literature, ... -
Composition of essential oils from two varieties of Salvia aucheri Benth. growing in Turkey
(Allured Publ Corp, 2002)Water-distilled essential oils from the aerial parts of two endemic varieties of Salvia aucheri from Turkey were analyzed by GC/MS. Eighty components were characterized in the Salvia aucheri var. aucheri oil, with camphor ... -
Aromatic biodiversity among the flowering plant taxa of Turkey
(Int Union Pure Applied Chemistry, 2002)Flora of Turkey is rich and diverse with well over I 1000 flowering taxa recorded in the 9-volume set of Prof. Davis's monumental work and its two supplements. Chemical diversity among the flowering plants of Turkey is ... -
Ferulagone: A new monoterpene ester from Ferulago thirkeana essential oil
(Georg Thieme Verlag Kg, 2002)Essential oil obtained by micro-distillation and hydrodistillation of the endemic Ferulago thirkeana (Boiss.) Boiss. (Apiaceae) was analysed by GC/MS. An unknown component isolated from the essential oil was characterized ... -
Composition of the essential oil of Salvia aramiensis Rech. fil. growing in Turkey
(John Wiley & Sons LTD, 2002)Water-distilled essential oils from aerial parts of Salvia aramiensis Rech. fil., collected in three different seasons (pre-flowering, flowering and post-flowering stages) from Hatay, were analysed by GC-MS. 1,8-Cineole ... -
Essential oils of two Hypericum species from Uzbekistan
(Consultants Bureau, 2002)The water-distilled essential oils from aerial parts of two Hypericum species (Hypericaceae) have been analyzed by GC/MS. The main components of the essential oils of Hypericum scabrum L. were alpha-pinene -11.2%; spathulenol ... -
Effects of Gentiana lutea ssp symphyandra on the central nervous system in mice
(Wiley, 2002)A methanolic extact of Gentiana lutea ssp. symphyandra roots has been investigated for its possible effects on the central nervous system of mice. At doses of 250 and 500 mg/kg (i.p.), the methanol extract of Gentiana roots ... -
Comparative study of the essential oils of Heracleum sphondylium ssp ternatum obtained by micro- and hydro-distillation methods
(Consultants Bureau, 2002)The volatile compounds obtained by hydro- and micro-distillation methods from crushed fruits of Heracleum sphondylium ssp. ternatum (Velen.) Brummitt were analyzed by GC/MS. Both distillation methods and analysis results ... -
The microbial oxidation of (-)-beta-pinene by Botrytis cinerea
(Verlag Z Naturforsch, 2002)(-)-beta-pinene, a flavor and fragrance monoterpene is an important constituent of essential oils of many aromatic plants. It was oxidized by a plant-pathogenic fungus, Botrytis cinerea to afford four metabolites characterized ... -
Composition of the essential oil of Ononis viscosa subsp breviflora
(Consultants Bureau, 2002)Water-distilled essential oil from Ononis viscosa L. subsp. breviflora (DC) Nyman was analyzed by GC/MS. Forty compounds were characterized representing 81.3% of the oil. Hexahydrofamesylacetone (12.5%), carvacrol(10.0%), ... -
Composition of the microdistilled essential oils of Tordylium apulum L. and T-pustulosum Boiss
(Allured Publ Corp, 2002)Microdistilled oil from fruits of Tordylium pustulosum (endemic) and T apulum were analyzed by GC/MS. Seven compounds representing 99.7% of the oil of T apulum and 19 compounds representing 97.2% of the oil of T pustulosum, ... -
Antioxidant and free radical scavenging activities of eight Salvia species
(Consultants Bureau, 2002)… -
Overlapping decompositions and expansions of Petri nets
(IEEE-Inst Electrical Electronics Engineers Inc, 2002)Overlapping decompositions and expansions are considered to design decentralized controllers for discrete-event systems (DESs) modeled, by Petri nets. The inclusion principle for Petri nets is first defined. It is shown ... -
A stochastic analysis of robust estimation algorithms in H-infinity with rational basis functions
(John Wiley & Sons LTD, 2002)In this paper, a two-stage nonlinear identification algorithm parameterized in terms of rational basis functions with fixed basis poles is studied when disturbances are subject to mild stochastic assumptions. The two-stage ... -
Topological median filters
(IEEE-Inst Electrical Electronics Engineers Inc, 2002)This paper describes the definition and testing of a new type of median filter for images. The topological median filter implements some existing ideas and some new ideas on fuzzy connectedness to improve, over a conventional ... -
General orthonormal bases for robust identification in H-infinity
(IEEE, 2002)In this paper, the problem of system identification in H-infinity with general orthonormal basis functions is investigated. A two-stage algorithm is shown to be robust, provided that the number of basis elements as a ... -
Rate-based flow controllers for communication networks in the presence of uncertain time-varying multiple time-delays
(Pergamon-Elsevier Science LTD, 2002)An H-infinity based robust controller is designed for a rate-feedback flow-control problem in single-bottleneck communication networks. The controller guarantees stability robustness to uncertain time-varying multiple ... -
An analysis of transformer excitation current under nonsinusoidal supply voltage
(IEEE-Inst Electrical Electronics Engineers Inc, 2002)In this paper, the effect of nonsinusoidal supply voltage on the core loss and the transformer excitation current is investigated. The time-domain waveform of the transformer excitation current is calculated for a worst-case ... -
Increasing the topological quality of Kohonen's self-organising map by using a hit term
(Nanyang Technological University, 2002)The quality of the topology obtained at the end of the training period of Kohonen's Self Organizing Map (SOM) is highly dependent on the learning rate and neighborhood function that are chosen at the beginning. The ...
