Vol. 8 No. 1 (2023): Volume 8, Issue 1

Published: 2023-12-03

Contribution of University of Chemical Technology and Metallurgy to the development of technical mineralogy and petrography in Bulgaria

Irena Kirilova Mihailova

3-20
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Effectiveness of glycerol, DMSO and trehalose in the process of cryopreservation of drone semen from the species apis mellifera

Tsvetan Tsvetkov, Nadya Petrova, Hristina Blagova, Denica Daskalova, Detelina Vitanova, Rositsa Shumkova

21-28
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The influence of SARS-COV-2 viral infection on the serological level of igm antibodies in patients with infectious mononucleosis

Anamarija Shram, Natasha Ristovska

29-35
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Model-based approach for analysis of contrast media regions in contrast enhanced breast model images

Tihomir Georgiev, Elena Koleva

36-42
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Application of the liquid-liquid extraction method and subsequent icp-ms detection for speciation analysis of arsenic in wastewater samples

Eduard Stefanov, Stela Georgieva

43-56
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Assessment of heavy metals contamination and ecological risk of roadside agricultural soil, used for sunflower (Helianthus annuus L.) cultivation

Dafinka Pangarova, Ekaterina Serafimova

57-66
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Assessment of roadside grassland soil carbon characteristics

Krasimir Donchev, Ekaterina Serafimova, Vanya Kyoseva-Vasileva

67-72
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Virtual sensor for measuring the concentration of Cu(II) in river waters

Kosta Boshnakov, Bogdana Koumanova, Emil Mihailov

73-76
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Design, fabrication and dynamic performance analysis of Magneto-Rheological damper suitable for vehicle application

Noojaje Purushothama Puneet, Abhinandan Hegale, Hemantha Kumar, Kalluvalappil Gangadharan

77-85
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Investigation of the basic parameters for alternative solid rocket propellant engines for research and civilian use

Kalin Krumov

86-91
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Mechanical behavior of PVC-U window elements under static loads

Zlatka Geshkova, Veselin Iliev, Petranka Naydenova

92-97
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Determination of the optimal construction parameters of dust collection facilities after pneumatic transport installation

Vasil Harizanov, Rayko Stanev

98-105
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The prevention of plagiarism as a prerequisite for ethical relationships in the academic community

Elena Stefanova

106-113
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How to use real options in project evaluation

Radostin Boyadzhiev

114-119
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The science of miracles - chemistry

Elitsa Chorbadzhiyska, Katerina Angelova, Yordan Angelov

120-127
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