CONTENTS
NATURAL AND TECHNICAL SCIENCES
Dakashev A. and K. Stancheva, Membrane electrodialysis as a means of making standard solutions for acid-base titrations	7
Dakashev A., M.Nedelcheva and K. Stancheva, Possibilities of creating a flame intended for plame emission spectrometry using liquit fuel instead of gas fuel	13
Vlaev L. and A. Dimitrova, Usage of a rice husks as a row material for obtaining of high technological materials	18
Zvezdova D., D. Aleksiev and St. Manolov, Quantum-chemcal study of 3-(4-toluenesulfonyl)-2-propenenitril and 1-toluenesulfonyl-2-nitroethene	24
Hamis G. and D. Aleksiev, Synthesis, structure and properties of γ-functionalized alylsulfones.III. Synthesys of methyl 2-bromo-3-tosylpropane-1-sulfonate	31
Slavova A., Ch. Karagiozov and B. Bogdanov, A study the effect of the concentration of the initial solutions of reagents in the synthesis of monodispersed nano-sized particles of BaCO₃in a reverse microemulsion system	34
Stefanov Zh., Longitudinal mixing of the liquid phase on tray columns	38
Ivanov Zh.,Zh. Stefanov and Zh. Tasev, Total volumetric mass transfer coefficient in distillation of the binary mixture	43
Stefanov Zh., Y. Denev, A heat conductivity coefficient study of insulation material “Izogomaterm”	47
Petrov P. M. and Ch. Gentscev, Interfacial area in column with spiral gauze packing	51
Gentschev Ch. and P.M.Petrov, Studi of the vakuum rektification of spiral gauze packing	54
Gentschev Ch. and P.M.Petrov, Study of the uniform distribution on luquid phase in spiral packing	58
Tasev J. A. and Ch.Gentschev, Study of the mass transfer of spiral gause packing	62
Piskova E., D. Mitev and L. Moerl,* Hydrodynamic of different spouted bed apparatus constructions	65
Pipeva P. and M. Karaivanova, Study of finishing compositions for textile industry	72
Nedelchev N. M., A method for exact calculation of the dynamic behaviour of hybrid single control loops	77
Lazarov I., P.Perkov, Y. Tasheva and Sl. Ivanov, Method for reducing of sulfur compounds and benzene in gasoline fractions	84
Dimitrova M., P. Petkov, D. Minkov and Y. Tasheva, Obtaining of initial raw materials for additives solved in oil through oxidation of oil fractions	89
Dimitrova M., P. Petkov, D. Minkov and Y. Tasheva, Obtaining of initial raw materials for additives solved in oil through sulphurization of oil fractions	93
Palichev T., Utilization of alternative components in gas oil production	98
Doynov M., L. Bozadjiev and T. Dimova, Spinels for type А₂ТiO₄	102
ECONOMIC SCIENCES
Dimitrov Iv. and V. Bineva, Theoretical approaches to supply chain managementement	107
Dimitrov Iv. and V. Bineva, Supplier selection influence on organization business processes	113
Bineva V., A try for systematization the organizational structures in the industrial enterprises	118
Pavlova D., Process model of supply logistics	123
Pavlova D., Components of the method for identification of fauls by means of indicators within the controlling system of supply logistics	127
Petrov K.., Consumer behavior end industrial companies’(marketing research)	135
Petrov K., Consumer behavior end industrial companies’ (marketing research)	143
Velichkova D., Personalizacion – a factor for increasing competition ability of the enterprise	151
Velichkova D., Customization – the key to the successful business	155
Keremidchiev D., S. Edreva and S. Yordanov, Research among the cosumers and bread buyers for determination their oppinion about the bread, which they consume and about the main bread of ‘Bread and bread goods’ EOOD – Bourgas	159
Ilieva K., Main stages in new products’ and services’ design in catering	164
Nedkova A., Up-to-date subject-matter aspects and vocational competence of s tudents in the College of tourism	169
Georgiev V., The advertisement annoncement – as a first filter at the human resources recruiting procedure	172