Volume 1, Iss. 1, 2016

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Science, Engineering & Education

1, Iss. 1, 2016
ISSN 2534-8507 (print)
ISSN 2534-8515 (on line)


Prof. Dr. Bogdana Koumanova
Tel: (+ 359 2) 81 63 302
University of Chemical Technology and Metallurgy
8 Kl. Ohridski, 1756 Sofia, Bulgaria
E-mail: journal@uctm.edu


Physics, Mechanics, Electrical Engineering

Validation procedure for numerical model of hydraulic inflatable dam under pulse load

Veselin Iliev, Nikolay Nikolov


Squeeze film effect at elastohydrodynamic lubrication of plain journal bearings

Juliana Javorova, Anelia Mazdrakova


Stress and strain controlled cyclic loading

Kliment Hadjov, Dimitar Dontchev, Tarik Hrima, Verjinia Aleksandrova


Network photovoltaic system

Valery Todorov, Anton Andonov


Photovoltaic’s inverter directly connected to the grid

Andrei Mirev, Anton Andonov, Yovko Rakanov


Modeling of an electrolyzer for а hybrid power supply system

Anton Andonov, Lyubomir Antonov


Autonomous photovoltaic power supply system

Anton Andonov, Valery Todorov


Mathematics, Informatics, Automation

Voltage control of microbial fuel cells for wastewater treatment

Chong Li, Kosta Boshnakov, Liping Fan


Asymptotic stability of linear differential equations with diagonal periodic coefficients

Batzul Tumur


Reduciblity of linear homogeneous system of differential equations with semiperiodic coefficients

Batzul Tumur


Constrained functional similarity by minimizing the H1 seminorm and applications to engineering problems

Stefan Filipov, Atanas Atanassov, Ivan Gospodinov


System supporting software requirements engineering processes

Atanas Atanassov, Vania Kuzmanova, Ivan Gospodinov


Developing of Node.js module for working with an effective temporal model in NoSQL data bases

Dimitar Pilev, Ventzislav Nikolov


Big data and cloud computing – issues and problems

Petar Halachev


Robust engineering approach for optimization of electron beam grafting of corn starch

Elena Koleva, Lilyana Koleva, Vencislav Tzotchev, Monica Nemtanu, Mirela Brashoveanu, Katia Vutova


Modeling and control of a rotary manipulator by Arduino programmable logical micro-controller

Elena Koleva, Volodia Dzharov


Stability shelf life estimation using linear regression models

Elena Koleva, Toni Paneva, Vencislav Tzotchev


Ontology-based data and information integration for quality improvement in а lead production plant

Daniela Gocheva, Dimitar Georgiev, Idilia Batchkova


Management, Humanities, Sports

Clarification of the correlation between the technological transfer and the enterprise competitiveness

Nikolay Karev, Angelina Terzieva


Organizing maintenance management activities in the industrial company

Georgi Kondev, Stilian Stefanov


The principles of training of the organization personnel

Temenujka Halacheva, Silviya Hristova


A methodological approach to risk management in industrial companies

Liliya Damyanova, Elitsa Tasseva


English language learning strategies of students in University of Chemical Technology and Metallurgy

Tsvetanka Dilkova, Senia Terzieva, Jordanka Angelova


A model for training in analytical chemistry on the basis of technical and personal skills and employment competences

Lili Nilkolova, Senia Terzieva, Jordanka Angelova


How students understand the relation between forms of assessment and motivation

Silvia Traikova, Silvia Tsolova


Conceptual database model of a learning process

Ventzislav Nikolov, Stefan Filipov, Ivan Gospodinov


Influence of the physical activity on the reaction patterns structuring in conflict situations

Ventsislav Gavrilov, Todor Marinov, Vanya Tsolova


On the psychophysical readiness of students to overcome difficulties in complex situations

Ventsislav Gavrilov, Vanya Tzolova, Desislava Ilieva


Significance and social functions of sport for all in the contemporary society

Desislava Ilieva, Ventsislav Gavrilov, Vanya Tzolova


Guide for Authors