Vol. 1 No. 1 (2016): Volume 1, Issue 1

Published: 2016-11-28

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

Veselin Iliev, Nikolov Nikolov

3-10
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Squeeze film effect at elastohydrodynamic lubrication of plain journal bearings

Juliana Javorova, Anelia Mazdrakova

11-20
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Stress and strain controlled cyclic loading

Kliment Hadjov, Dimitar Dontchev, Tarik Hrima, Verjinia Aleksandrova

21-26
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Network photovoltaic system

Valery Todorov, Anton Andonov

27-31
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Photovoltaic’s inverter directly connected to the grid

Andrei Mirev, Anton Andonov, Yovko Rakanov

32-35
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Modeling of an electrolyzer for а hybrid power supply system

Anton Andonov, Lyubomir Antonov

36-38
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Autonomous photovoltaic power supply system

Anton Andonov, Valery Todorov

39-42
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Clarification of the correlation between the technological transfer and the enterprise competitiveness

Nikolay Karev, Terzieva Angelina

121-124
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Organizing maintenance management activities in the industrial company

Georgi Kondev, Stilian Stefanov

125-131
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The principles of training of the organization personnel

Temenujka Halacheva, Silviya Hristova

132-136
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A methodological approach to risk management in industrial companies

Damyanova Liliya, Elitsa Tasseva

137-152
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English language learning strategies of students in University of Chemical Technology and Metallurgy

Tsvetanka Dilkova, Senia Terzieva, Jordanka Angelova

153-159
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A model for training in analytical chemistry on the basis of technical and personal skills and employment competences

Nilkolova.Lili, Senia Terzieva, Jordanka Angelova

160-166
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How students understand the relation between forms of assessment and motivation

Silvia Traikova, Silvia Tsolova

167-172
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Conceptual database model of a learning process

Ventzislav Nikolov, Stefan Filipov, Ivan Gospodinov

173-182
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Influence of the physical activity on the reaction patterns structuring in conflict situations

Ventsislav Gavrilov, Todor Marinov, Vanya Tsolova

183-187
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On the psychophysical readiness of students to overcome difficulties in complex situations

Ventsislav Gavrilov, Vanya Tzolova, Desislava Ilieva

188-192
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Significance and social functions of sport for all in the contemporary society

Desislava Ilieva, Ventsislav Gavrilov, Vanya Tzolova

193-200
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Voltage control of microbial fuel cells for wastewater treatment

Chong Li, Kosta Boshnakov, Liping Fan

43-52
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Asymptotic stability of linear differential equations with diagonal periodic coefficients

Batzul Tumur

53-57
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The reducibility property of linear system of differential equations plays a significant role in the theoretical research of asymptotic stability of the system of linear differential equations. In 1892, A.M. Lyapunov proved the reducibility property of linear homogeneous systems of differential equations with periodic coefficients. In 1992, Jorba, A. and Simó, C. proved the reducibility of linear differential equations with quasi-periodic coefficients. Moreover, all periodic functions and all quasi-periodic functions will be semi-periodic functions. In this paper, we consider one new definition of semi periodic functions and consider the reducibility of linear homogeneous systems of differential equations with semi periodic coefficients.

Batzul Tumur

58-60
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Constrained functional similarity by minimizing the H1 seminorm and applications to engineering problems

Stefan Filipov, Atanassov, Ivan Gospodinov

61-67
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System supporting software requirements engineering processes

Atanas Atanassov, Vania Kuzmanova, Ivan Gospodinov

68-74
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Developing of Node.js module for working with an effective temporal model in NoSQL data bases

Dimitar Pilev, Ventzislav Nikolov

75-82
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Big data and cloud computing - issues and problems

Petar Halachev

83-88
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Robust engineering approach for optimization of electron beam grafting of corn starch

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

89-96
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Modeling and control of a rotary manipulator by Arduino programmable logical micro-controller

Elena Koleva, Volodia Dzharov

97-105
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Stability shelf life estimation using linear regression models

Elena Koleva, Toni Paneva, Vencislav Tzotchev

106-112
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Ontology-based data and information integration for quality improvement in а lead production plant

Daniela Gocheva, Dimitar Georgiev, Idilia Batchkova

113-120
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