Assen Zlatarov University, Annual, Vol. XLVIIІ, BOOK 1, Technical and Natural Sciences, 2019

Assen Zlatarov University, Annual, Vol. XLVIIІ, BOOK 1, Technical and Natural Sciences, 2019

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Contents

Nina Sultanova, Stefka Kasarova, Ivan Nikolov, Radostin Kasarov
Application of polymers in the design of imaging systems

Ivan Georgiev, Dimitar Yanakiev
Numerical study of a subrecursive sequence converging to the Euler-Mascheroni constant

Nikola Todorov, Veselina Yordanova, Vesela Manolova, Emine Ahmed, Mirela Toneva, Stanislav Evtimov, Aneliya Stoyanova, Vladilena Deyanova
Monitoring of the noise pollution in ecology laboratory 327 in the Inorganic Chemistry Building of Prof. Dr Assen Zlatarov University, Burgas

Irena Markovska, Fila Yovkova, Dimitar Georgiev, Magdalena Mitkova
Synthesis and characterization of graphene

Fila Yovkova, Irena Markovska, Dimitar Georgiev, Dimitar Rusev, Magdalena Mitkova
Synthesis of highly porous dielectric ceramic materials with rice husk as pore-former

Tsvetalina Ibreva, Tsvetan Dimitrov, Aleksander Karamanov, Georgi Avdeev
Synthesis and study of Co-doped willemite ceramic pigments

Maya Stancheva, Hiusein Yemendzhiev, Valentin Nenov
Monitoring the dynamics of soluble phosphates during anaerobic digestion of buffalo manure

Yana Koleva
Investigation of the bioactivity score of third generation retinoids

Yana Koleva, Asen Kolev
Molecular properties and bioactivity score of cyclododec-2-en-1-yl ethers

Blagovesta Midyurova
Design of air cathodes for application in microbial fuel cell

Yordanka Tasheva
Some features of gasoil extraction

Galina Grigorova
Testing raw cow milk used for dairy products

Galina Yordanova, Milka Atanasova, Ruska Nenkova
Bread yeast - vitality and viability, endurance and storage stability

Desislava Nikolova
An optimal oriented approach to the sustainable supply chain design for biorefinery

Milena Miteva, Dimitrina Kiryakova, Stoyko Petrov
Preparation and structure of PAN/clay nanocomposite membranes

Plamena Atanasova, Sabina Nedkova
Application of a model for assessment and analysis of radioactive activity

Sabina Nedkova, Plamena Atanasova
Crisis management and its relation with the anxiety state of people working in the chemical industry

Veselina Bureva, Krassimir Atanassov, Nikolay Andreev
Intercriteria analysis applied to healthcare rankings

Stanislav Popov
Generalized net model of stochastic expectation-maximization algorithm

Ivaylo Belovski
Thermoelectric energy convertors: features and operating modes

Vasil Ivanov, Ivailo Belovski
Survey of the impact of seasons over the effectiveness of solar panels

Mladen Proykov
Modernization of the street lighting system of a residential district

Mladen Proykov
Laboratory model for compensation of reactive power

Vasil Bobev
Combined road and railway transport in present-day Bulgaria

Yuliyan Petrov
Modeling of transient processes in a linear electric circuit of the second order with a generalized net

Lachezar Radev
Novel Mg-containing glass-ceramics in the SiO2-CaO system and their in vitro bioactivity: XRD, FTIR, SEM and ICP-AES analysis

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Editor-in-Chief
Prof. Margarita Terzieva, DSc 

Co-editors
Assoc. Prof. Penka Peeva, PhD
Assoc. Prof. Liliya Staneva, PhD
Asst. Prof. Ivan Sokolov

Technical Assistant
Iliana Ishmerieva

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