Güncel Gönderiler: DSpac@Bayburt: Bayburt University Institutional Repository
Toplam kayıt 1109, listelenen: 1081-1100
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Photodimerizations of hydroxy- and benzoylated 4-azachalcones and quantum chemical investigation of the reactions
(2010)Photodimerization reactions of compounds 4-6 gave four new cyclobutane-containing compounds (7-9) with full control over the stereochemistry at the four stereogenic centers. These new cyclobutane- containing compounds had ... -
Pre- and post-cyclic loading strength of silica-grouted sand
(2010)The aim of this study is to investigate whether there is a loss in the strength of fine- to medium-grained colloidalsilica-grouted sand after cyclic loading. First, the rheological properties of colloidal silica grouts, ... -
Determination of alkali-silica reaction effects of zeolitic tuff addition on the different aggregates
(2010)The aim of this study is to determine the alkali-silica reaction (ASR) related characteristics of crushed stones that are produced from rocks of perlite, andesite and limestone when zeolitic tuff (ZT) is used in the mortar ... -
Complexation of metal ions with double-armed diazadithia lariat ether carrying anthracene moieties in acetonitrile-dioxane
(2010)A new 14-membered crown ether with nitrogen-sulfur donor atom carrying two anthryl groups was designed and synthesized by the reaction of the corresponding macrocyclic compound and 9-(chloromethyl) anthracene. The influence ... -
Analysis of heat pumps with zeotropic refrigerant mixtures by taguchi method
(2010)The goal of this work is to determine the optimum set of parameters by using the Taguchi method in vapour compression heat pump systems. The experimental apparatus consist of an air-to-liquid vapor compression heat pump, ... -
Customer risk perceptions of internet banking - A study in turkey
(2010)Technological developments in electronics have lead to the introduction of technology-based self-service systems resulting in the reorganization of several industries offering their services in electronic format known as ... -
The effect of PowerPoint presentations prepared and presented by prospective teachers on biology achievement and attitudes toward biology
(2010)The study aims to explore the effect of preparing and presenting powerpoint slides on prospective teachers' biology achievement and attitudes toward biology. The sample of the study was 109 freshman students from Pre-School ... -
Cryptofavognathus, a new genus of the family Cryptognathidae Oudemans (Acari: Raphignathoidea), with the description of a new species from Turkey
(2010)A new genus, Cryptofavognathus is proposed for two species, Cryptofavognathus afyonensis (Koç & Akyol, 2004) comb. nov. and C. anatolicus sp. nov. The adult female and male of C. anatolicus sp. nov. collected from moss and ... -
Thermodynamics and kinetic studies of biosorption of a basic dye from aqueous solution using green algae Ulothrix sp.
(2010)This study addresses removal of a basic dye, methylene blue, from aqueous solutions by using dried Ulothrix sp. biomass as biosorbent. The effects of the initial dye concentration, contact time, temperature, solution ... -
Energy production, consumption, policies and recent developments in Turkey
(2010)Many factors to be appropriately addressed in moving towards energy sustainability in Turkey are examined. These include harnessing sustainable energy sources, utilizing sustainable energy carriers, increasing efficiency, ... -
Characterization of liquefaction susceptibility of sands by means of extreme void ratios and/or void ratio range
(American Society of Civil Engineers (ASCE), 2010)The liquefaction susceptibility of various graded fine to medium saturated sands are evaluated by stress controlled cyclic triaxial laboratory tests. Cyclic triaxial tests are performed on reconstituted specimens having ... -
Complexation of metal ions with the novel diazadithia crown ethers carrying two pyrene pendants in acetonitrile-tetrahydrofuran
(2010)Two crown ethers carrying pyrene side arms with nitrogen-sulfur donor atom were designed and synthesized by the reaction of the corresponding macrocyclic compounds and 1-bromomethyl-pyrene. The influence of metal cations ... -
Complexation of metal ions with the novel azathia crown ethers carrying anthracene pendant in acetonitrile-dichloromethane
(2010)A series of crown ethers carrying an anthracene group with nitrogen-sulfur donor atom, which differ in having three, four and five sulfur atoms in the macrocycle was designed and synthesized by the reaction of the corresponding ... -
Complexation of metal ions with the novel diazadithia crown ether carrying two anthryl pendants in acetonitrile-tetrahydrofuran
(2010)A new crown ether carrying two anthryl groups with nitrogen-sulfur donor atom was designed and synthesized by the reaction of the corresponding macrocyclic compound and 9-chloromethyl anthracene. The influence of metal ... -
Production of a novel pectin lyase from Bacillus pumilus (P9), Purification and characterisation and fruit juice application
(2010)Extracellular pectin lyase (EC 4.2.2.10) was produced by Bacillus pumilus (P9) in solid state fermentation. Pectin lyase enzyme was purified 36.36 fold by using DEAE-cellulose anion exchange column chromatography and ... -
Improvements on slope diffraction for multiple wedges
(2010)This article proposes an improved slope uniform theory of diffraction model for fast and more accurate field prediction for multiple wedge diffractions in the transition zone. The proposed method is based on the slope ... -
The first occurrence of the mite family linotetranidae (Acari: Tetranychoidea) in Turkey: Linotetranus anatolicus n. sp
(2010)A new species Linotetranus anatolicus Doan and Donel, n. sp. collected from soil, litter, oak bark and moss is herein described and figured. This is the first time that the family Linotetranidae has been recorded from ... -
The removal of lignin and phenol from paper mill effluents by electrocoagulation
(2008)This study aims to investigate the treatment of paper mill effluents using electrocoagulation. Removal of lignin, phenol, chemical oxygen demand (COD) and biological oxygen demand (BOD) from paper mill effluents was ... -
Endurance training attenuates the oxidative stress due to acute exhaustive exercise in rat liver
(2008)The aim of this study was to investigate whether an 8-week treadmill training attenuates exerciseinduced oxidative stress in rat liver. Male rats were divided into untrained and trained groups. Endurance training consisted ... -
Investigation of the effect of a polypropylene fiber material on the shear strength and CBR characteristics of high plasticity Ankara clay
(2009)Nowadays, many soil improvement methods have evolved with different materials used. In this study, a series of laboratory tests are carried out to investigate the effect of a polypropylene fiber material on the shear ...
