Production of Portland cement using fluorine gypsum – hydrofluoric acid waste / M. P. Kuz'min, L. M. Larionov, M. Yu. Kuz'mina [et al.]. — 1 файл (732 Кб). — DOI 10.34910/MCE.111.13. — Текст: электронный // Magazine of Civil Engineering / Санкт-Петербургский политехнический университет Петра Великого. – 2022. – № 3 (111). — С. 11113. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — <URL:http://elib.spbstu.ru/dl/2/j22-230.pdf>.
| Period | Read | Copy | Open | Total | |||
|---|---|---|---|---|---|---|---|
| Year 2022 | Quarter 4 | October | 10 | 0 | 11 | 0 | 21 |
| November | 5 | 0 | 2 | 0 | 7 | ||
| December | 7 | 0 | 1 | 0 | 8 | ||
| Year 2023 | Quarter 1 | January | 1 | 0 | 1 | 0 | 2 |
| February | 1 | 0 | 2 | 0 | 3 | ||
| March | 3 | 0 | 4 | 0 | 7 | ||
| Quarter 2 | April | 1 | 0 | 2 | 0 | 3 | |
| May | 2 | 0 | 8 | 0 | 10 | ||
| June | 1 | 0 | 2 | 0 | 3 | ||
| Quarter 3 | July | 3 | 0 | 2 | 0 | 5 | |
| August | 2 | 0 | 1 | 0 | 3 | ||
| September | 0 | 0 | 2 | 0 | 2 | ||
| Quarter 4 | October | 6 | 0 | 10 | 0 | 16 | |
| November | 1 | 0 | 6 | 0 | 7 | ||
| December | 3 | 0 | 1 | 0 | 4 | ||
| Year 2024 | Quarter 1 | January | 1 | 0 | 2 | 0 | 3 |
| February | 1 | 0 | 2 | 0 | 3 | ||
| March | 0 | 0 | 3 | 0 | 3 | ||
| Quarter 2 | April | 4 | 0 | 6 | 0 | 10 | |
| May | 1 | 0 | 6 | 0 | 7 | ||
| June | 6 | 0 | 7 | 0 | 13 | ||
| Quarter 3 | July | 6 | 0 | 5 | 0 | 11 | |
| August | 4 | 0 | 7 | 0 | 11 | ||
| September | 5 | 0 | 1 | 0 | 6 | ||
| Quarter 4 | October | 4 | 0 | 1 | 0 | 5 | |
| November | 0 | 0 | 1 | 0 | 1 | ||
| December | 0 | 0 | 2 | 0 | 2 | ||
| Year 2025 | Quarter 1 | January | 3 | 0 | 10 | 0 | 13 |
| February | 5 | 0 | 8 | 0 | 13 | ||
| March | 3 | 0 | 2 | 0 | 5 | ||
| Quarter 2 | April | 4 | 0 | 7 | 0 | 11 | |
| May | 5 | 0 | 1 | 0 | 6 | ||
| Total | 98 | 0 | 126 | 0 | 224 | ||