Bulgarian Chemical Communications, Volume 53, Special Issue-B, 2021
Contents:
1
 Preface
Page 4
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2
 Dual-phase steels with low manganese content. Structures and mechanical properties
Original Research Article
Pages 5 – 11
C. Dulucheanu, T. L. Severin1, D. A. Cerlinca, L. Irimescu, J. Javorova
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3
 Recycling rejected silicon wafers and dies for high grade PV cells
Original Research Article
Pages 12 – 18
G. Golan, M. Azoulay, G. Orr
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4
 Crystalline quality in aluminum single crystals, characterized by X-Ray diffraction and Rocking-Curve analysis
Original Research Article
Pages 19 – 25
G. Orr, G. Golan
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5
 Modeling the thermal operation of a petroleum coke-calcining unit
Original Research Article
Pages 26 – 33
H. I. Beloev , A. S. Nikiforov, I. K. Iliev, E. V. Prihodko, M. S. Kucherbayev
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6
 Novel flue gases waste heat recovery methodology avoiding wet gas cleaning technologies in thermal power plants
Original Research Article
Pages 34 – 41
I. K. Iliev, H. I. Beloev, A. K. Terziev, A. G. Georgiev
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7
 Usage of locally produced green hydrogen for peak load coverage in alpine regions and a local community – Simulation based on Austrian communities
Original Research Article
Pages 42 – 48
M. Kramer, L. Eitzinger-Lange, M. Leeb, G. C. Brunauer
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8
 The problem with indoor radon and solution in the use of geothermal water
Original Research Article
Pages 49 – 54
N. Chobanova, B. Kunovska, D. Djunakova, J. Djounova, A. Angelova, Z. Stojanovska, K. Ivanova
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9
 Comparative study of the extracting polysaccharides from Traditional Chinese Medicine Astragali Radix in the field of new biological cellulase-assisted enzymes technology
Original Research Article
Pages 55 – 60
Y. Sun, L. Miao, F. Yang, W. Sun, Z. Peng, Y. L. Li
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10
 Stronger antioxidant and hepatoprotective components generated from Rubiaceae Hedyotis diffusa with biotinidase in the field of new biological energy technology
Original Research Article
Pages 61 – 65
Y. Sun, Y. Qi, M. J Zhang, Y.L. Li
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11
 Instructions about Preparation of Manuscripts
Pages 66 – 67
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12
 Contents
Page 68
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