The formation mechanism of the porous structure of glass ceramics from siliceous rock / V. T. Erofeev, A. I. Rodin, V. S. Bochkin, A. A. Ermakov. — 1 файл (1,11 Мб). — DOI 10.18720/MCE.100.6. — Текст: электронный // Magazine of Civil Engineering / Санкт-Петербургский политехнический университет Петра Великого. – 2020. – № 8 (100). — С. 10006. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — <URL:http://elib.spbstu.ru/dl/2/j21-216.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2021 | Quarter 1 | 1 | 0 | 4 | 0 | 5 |
| Quarter 2 | 13 | 0 | 10 | 0 | 23 | |
| Quarter 3 | 7 | 0 | 7 | 0 | 14 | |
| Quarter 4 | 4 | 0 | 7 | 0 | 11 | |
| Year 2022 | Quarter 1 | 4 | 0 | 3 | 0 | 7 |
| Quarter 2 | 4 | 0 | 6 | 0 | 10 | |
| Quarter 3 | 6 | 0 | 9 | 0 | 15 | |
| Quarter 4 | 12 | 0 | 0 | 0 | 12 | |
| Year 2023 | Quarter 1 | 6 | 0 | 12 | 0 | 18 |
| Quarter 2 | 4 | 0 | 2 | 0 | 6 | |
| Quarter 3 | 5 | 0 | 10 | 0 | 15 | |
| Quarter 4 | 7 | 0 | 8 | 0 | 15 | |
| Year 2024 | Quarter 1 | 4 | 0 | 14 | 0 | 18 |
| Quarter 2 | 17 | 0 | 16 | 0 | 33 | |
| Quarter 3 | 9 | 0 | 9 | 0 | 18 | |
| Total | 103 | 0 | 117 | 0 | 220 | |