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Now showing items 1-20 of 8358
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Investigation of pyrolysis products of polyacrylamide by pyrolysis-gas chromatography
(1991)A study of the thermal degradation of polyacrylamide is presented. The method of flash pyrolysis-gas chromatography has been applied, and the experiments were carried out by using two different packed columns. Five major ... -
Investigations on the fungitoxicity of extracts of six selected plants from Turkey against phytopathogenic fungi [Untersuchungen zur fungitoxischen Wirkung der Extrakte sechs ausgewahlter Pflanzen aus der Turkei auf phytopathogene Pilze]
(1992)Aqueous extracts and essential oils of Thymbra spicata, Satureja thymbra, Laura nobilis, Mentha spicata, Salvia fruticosa and Insula viscosa exhibited fungitoxicity against four phytopathogenic fungi. The essential oils ... -
FILTRATION OF CERAMICS FACTORY WASTE-WATER WITH MEMBRANE AND CERAMIC TYPE FILTER MEDIA
(A A BALKEMA, 1994)… -
Chemical Composition and Fungitoxic Properties to Phytopathogenic Fungi of Essential Oils of Selected Aromatic Plants Growing Wild in Turkey
(1995)Essential oils of Thymbra spicata, Satureja thymbra, Salvia fruticosa, Laurus nobilis, Mentha pulegium, Inula viscosa, Pimpinella anisum, Eucalyptus camaldulensis, and Origanum minitiflorum plants growing wild in southern ... -
Electrochemical effects in flotation of a Turkish complex sulphide ore
(1995)There are many reported studies of selective flotation based on control of redox potential (Eh). Most of the studies show that flotation of chalcopyrite, pyrite, sphalerite and galena with xanthate collector show a strong ... -
Relation with the age of the histological variations in the compact layer of the long bones [Uzun kemiklerin kompakt tabakasindaki histolojik degişimlerin yaş ile olan i·lişkisi]
(1996)This research has been made on the long bones of the extremities of the rabbits, Lepus capensis. It has been established in which indicated correlation in very high values the age of this numerically change by optaining ... -
Histogram based fuzzy Kohonen clustering network for image segmentation
(IEEE, Los Alamitos, CA, United States, 1996)In this study, a Fuzzy Kohonen Clustering Networks (FKCN) algorithm is proposed for image segmentation. The large image sizes are in general required for various types of imaging applications. For large amounts of data, ... -
Should omeprazole be used for the treatment and prevention of duodenal ulcer as a monotherapeutic agent? [3]
(1996)[No abstract available] -
Purification and characterization of dog-rose (Rosa dumalis Rechst) polyphenol oxidase
(AMER CHEMICAL SOC, 1996)Polyphenol oxidase (PPO) of dog-rose fruit was extracted and purified through (NH4)(2)SO4 precipitation, dialysis, gel filtration, and DEAE-Sephacel ion-exchange chromatography. The sample obtained from ammonium sulfate ... -
Gain and noise figure characterisation of a 68 km long distributed erbium doped fibre amplifier
(Institution of Engineering and Technology, 1996)The authors report the detailed gain and noise figure characterisation of a 68km long distributed erbium doped fibre amplifier (DEDFA) using a fibre design optimised for this application. The results, representing significant ... -
A cosmological approach to a high-order effective field theory
(1996)A class of cosmological solutions is found to the vacuum field equations of an effective field theory derived from string theory in a (10 - ?)-dimensional spacetime. This effective field theory concerns only the massless ... -
New Floristic Records for the Fern Flora of Turkey
(1996)New records are given for 23 fern species in Turkey. -
Analysis of orthotropic plate-foundation interaction by mixed finite element formulation using Gateaux differential
(PERGAMON-ELSEVIER SCIENCE LTD, 1997)In mixed finite element formulation, the fundamental difference among the various approaches depend on the variational principles such as the Hellinger-Reissner, the Hu-Washizu and the Gateaux differential which is introduced ... -
Seasonal Variations in the Chemical Compositions of Essential Oils of Selected Aromatic Plants Growing Wild in Turkey
(American Chemical Society, 1997)The summer leaves of Thymbra spicata var. spicata and Satureja thymbra, two Labiatae aromatic shrubs growing wild in the East Mediterranean region of Turkey, and, in addition, the leaves of Salvia fruticosa, Mentha pulegium, ... -
Betonun gerilme- şekil değiştirme ilişkisi
(1997)Bu çalışmada betonarme yapılarda kullanılan normal ağırlıklı betonların gerilme-deformasyon ilişkisi incelenmiştir. Elektrik rezistansh strain gauge'lerle donatılmış 108 silindir numune üzerinde eksenel basınçta deneyler ... -
Influences of thermal annealing, the electrolyte pH, and current density on the interface state density distribution of anodic MOS structures
(Springer Verlag, 1997)An investigation of the effect of thermal annealing and anodization parameters, such as the electrolyte pH and current density, on capacitance-voltage and interface state density distribution characteristics has been made. ... -
Effect of high-temperature and salt (NaCl) stresses on polyphenoloxidase activity during seed germination
(1997)The ability of the polyphenoloxidase (PPO) enzyme in the embryos and food tissues of the seeds of bean (Phaseolus vulgaris L. cv. Magnum) and corn (Zea mays L. cv. Merit) to oxidize the substrates of dopa and catechol was ... -
Spectral characteristics of long span distributed erbium doped fibre amplifiers (DEDFAs) for soliton transmission
(Institution of Engineering and Technology, 1997)The authors present a detailed spectral characterisation of an optimally designed 60km long DEDFA for soliton transmission. From this, the optimum wavelength for single channel and WDM soliton transmission in such systems ... -
Use and side effects on the soil microbial activity of the essential oil from Thymbra spicata to control pepper blight Phytophthora capsici [Einsatz und nebenwirkungen auf bodenmikrobielle aktivitaten des etherischen ols aus Thymbra spicata bei der bekampfung der wurzelhalskrankheit an paprika Phytophthora capsici]
(1998)The essential oil of Tymbra spicata showed good efficacy against Phytophthora capsici, the agent of pepper blight, both in the greenhouse and in the field. In greenhouse trials with naturally infested soil, the number of ...
