Никольский, Сергей Григорьевич. Обоснование экспресс-метода определения морозостойкости пористых материалов = Substantiation of Express method for determining of frost resistance of porous materials [Электронный ресурс] / С. Г. Никольский, О. Н. Перцева, В. И. Иванова. — Электрон. текстовые дан. (1 файл : 871 Кб) // Инженерно-строительный журнал: специализированный научный журнал / Санкт-Петербургский политехнический университет Петра Великого, Инженерно-строительный институт. – Санкт-Петербург. – 2015. – Загл. с титул. экрана. — Электронная версия печатной публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Текстовый файл. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/j16-4.pdf>. — <URL:http://doi.org/10.5862/MCE.60.2>.
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Period
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Read
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Print
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Copy
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Open
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Total
|
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Year 2016
|
Quarter 1
|
February
|
13
|
0
|
19
|
0
|
32
|
|
March
|
15
|
0
|
11
|
0
|
26
|
|
Quarter 2
|
April
|
4
|
0
|
7
|
0
|
11
|
|
May
|
4
|
0
|
7
|
0
|
11
|
|
June
|
6
|
0
|
6
|
0
|
12
|
|
Quarter 3
|
July
|
5
|
0
|
3
|
0
|
8
|
|
August
|
5
|
0
|
3
|
0
|
8
|
|
September
|
2
|
0
|
2
|
0
|
4
|
|
Quarter 4
|
October
|
12
|
0
|
4
|
0
|
16
|
|
November
|
10
|
0
|
2
|
0
|
12
|
|
December
|
11
|
0
|
2
|
0
|
13
|
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Year 2017
|
Quarter 1
|
January
|
3
|
0
|
4
|
0
|
7
|
|
February
|
2
|
0
|
0
|
0
|
2
|
|
March
|
9
|
0
|
7
|
0
|
16
|
|
Quarter 2
|
April
|
0
|
0
|
4
|
0
|
4
|
|
May
|
2
|
0
|
4
|
0
|
6
|
|
June
|
3
|
0
|
3
|
0
|
6
|
|
Quarter 3
|
July
|
3
|
0
|
6
|
0
|
9
|
|
August
|
1
|
0
|
9
|
0
|
10
|
|
September
|
2
|
0
|
5
|
0
|
7
|
|
Quarter 4
|
October
|
4
|
0
|
4
|
0
|
8
|
|
November
|
2
|
0
|
5
|
0
|
7
|
|
December
|
2
|
0
|
9
|
0
|
11
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Year 2018
|
Quarter 1
|
January
|
0
|
0
|
4
|
0
|
4
|
|
February
|
0
|
0
|
9
|
0
|
9
|
|
March
|
1
|
0
|
6
|
0
|
7
|
|
Quarter 2
|
April
|
1
|
0
|
1
|
0
|
2
|
|
May
|
4
|
0
|
6
|
0
|
10
|
|
June
|
1
|
0
|
3
|
0
|
4
|
|
Quarter 3
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July
|
4
|
0
|
12
|
0
|
16
|
|
August
|
4
|
0
|
14
|
0
|
18
|
|
September
|
6
|
0
|
2
|
0
|
8
|
|
Quarter 4
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October
|
1
|
0
|
0
|
0
|
1
|
|
November
|
1
|
0
|
6
|
0
|
7
|
|
December
|
1
|
0
|
5
|
0
|
6
|
|
Year 2019
|
Quarter 1
|
January
|
2
|
0
|
6
|
0
|
8
|
|
February
|
4
|
0
|
2
|
0
|
6
|
|
March
|
4
|
0
|
9
|
0
|
13
|
|
Quarter 2
|
April
|
1
|
0
|
4
|
0
|
5
|
|
May
|
3
|
0
|
5
|
0
|
8
|
|
June
|
4
|
0
|
5
|
0
|
9
|
|
Quarter 3
|
July
|
2
|
0
|
4
|
0
|
6
|
|
August
|
1
|
0
|
3
|
0
|
4
|
|
September
|
4
|
0
|
4
|
0
|
8
|
|
Quarter 4
|
October
|
0
|
0
|
1
|
0
|
1
|
|
November
|
1
|
0
|
0
|
0
|
1
|
|
December
|
0
|
0
|
4
|
0
|
4
|
|
Year 2020
|
Quarter 1
|
January
|
1
|
0
|
1
|
0
|
2
|
|
February
|
1
|
0
|
4
|
0
|
5
|
|
March
|
5
|
0
|
5
|
0
|
10
|
|
Quarter 2
|
April
|
4
|
0
|
0
|
0
|
4
|
|
May
|
2
|
0
|
0
|
0
|
2
|
|
June
|
2
|
0
|
0
|
0
|
2
|
|
Quarter 3
|
July
|
1
|
0
|
0
|
0
|
1
|
|
August
|
1
|
0
|
0
|
0
|
1
|
|
September
|
2
|
0
|
0
|
0
|
2
|
|
Quarter 4
|
October
|
6
|
0
|
0
|
0
|
6
|
|
November
|
0
|
0
|
5
|
0
|
5
|
|
December
|
4
|
0
|
8
|
0
|
12
|
|
Year 2021
|
Quarter 1
|
January
|
5
|
0
|
2
|
0
|
7
|
|
February
|
2
|
0
|
1
|
0
|
3
|
|
March
|
4
|
0
|
1
|
0
|
5
|
|
Quarter 2
|
April
|
1
|
0
|
3
|
0
|
4
|
|
May
|
1
|
0
|
0
|
0
|
1
|
|
June
|
4
|
0
|
4
|
0
|
8
|
|
Quarter 3
|
July
|
7
|
0
|
7
|
0
|
14
|
|
August
|
1
|
0
|
2
|
0
|
3
|
|
September
|
3
|
0
|
2
|
0
|
5
|
|
Quarter 4
|
October
|
4
|
0
|
3
|
0
|
7
|
|
November
|
0
|
0
|
2
|
0
|
2
|
|
December
|
5
|
0
|
3
|
0
|
8
|
|
Year 2022
|
Quarter 1
|
January
|
1
|
0
|
2
|
0
|
3
|
|
February
|
1
|
0
|
3
|
0
|
4
|
|
March
|
6
|
0
|
1
|
0
|
7
|
|
Quarter 2
|
April
|
0
|
0
|
5
|
0
|
5
|
|
May
|
0
|
0
|
1
|
0
|
1
|
|
June
|
2
|
0
|
3
|
0
|
5
|
|
Quarter 3
|
July
|
3
|
0
|
2
|
0
|
5
|
|
August
|
2
|
0
|
3
|
0
|
5
|
|
September
|
3
|
0
|
0
|
0
|
3
|
|
Quarter 4
|
October
|
1
|
0
|
0
|
0
|
1
|
|
November
|
6
|
0
|
2
|
0
|
8
|
|
December
|
4
|
0
|
4
|
0
|
8
|
|
Year 2023
|
Quarter 1
|
January
|
4
|
0
|
1
|
0
|
5
|
|
February
|
1
|
0
|
4
|
0
|
5
|
|
March
|
1
|
0
|
1
|
0
|
2
|
|
Quarter 2
|
April
|
2
|
0
|
4
|
0
|
6
|
|
May
|
1
|
0
|
2
|
0
|
3
|
|
June
|
3
|
0
|
3
|
0
|
6
|
|
Quarter 3
|
July
|
1
|
0
|
2
|
0
|
3
|
|
August
|
2
|
0
|
1
|
0
|
3
|
|
September
|
1
|
0
|
3
|
0
|
4
|
|
Quarter 4
|
October
|
2
|
0
|
4
|
0
|
6
|
|
November
|
3
|
0
|
6
|
0
|
9
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2024
|
Quarter 1
|
January
|
0
|
0
|
1
|
0
|
1
|
|
February
|
2
|
0
|
1
|
0
|
3
|
|
March
|
0
|
0
|
3
|
0
|
3
|
|
Quarter 2
|
April
|
4
|
0
|
7
|
0
|
11
|
|
May
|
5
|
0
|
4
|
0
|
9
|
|
Total
|
297
|
0
|
367
|
0
|
664
|
