Скотникова, Маргарита Александровна. Основы теории трения. Основные характеристики поверхности трения: учебное пособие / М. А. Скотникова, Г. В. Цветкова, Г. В. Иванова; Санкт-Петербургский политехнический университет Петра Великого. — Санкт-Петербург: ПОЛИТЕХ-ПРЕСС, 2020 (Санкт-Петербург, 2020). — 1 файл (2,40Мб). — Загл. с титул. экрана. — Электронная копия печатной публикации 2020 г. — Доступ по паролю из сети Интернет (чтение, печать). — <URL:http://elib.spbstu.ru/dl/2/i20-62.pdf>. — DOI 10.18720/SPBPU/2/i20-62. — Текст: электронный
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Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2020
|
Quarter 1
|
March
|
5
|
0
|
0
|
0
|
5
|
|
Quarter 2
|
April
|
11
|
0
|
0
|
0
|
11
|
|
May
|
7
|
0
|
0
|
0
|
7
|
|
June
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 3
|
July
|
5
|
0
|
0
|
0
|
5
|
|
August
|
5
|
0
|
0
|
0
|
5
|
|
September
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 4
|
October
|
2
|
0
|
0
|
0
|
2
|
|
November
|
0
|
0
|
0
|
0
|
0
|
|
December
|
1
|
0
|
0
|
0
|
1
|
|
Year 2021
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
0
|
0
|
0
|
0
|
0
|
|
March
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 2
|
April
|
0
|
0
|
0
|
0
|
0
|
|
May
|
0
|
0
|
0
|
0
|
0
|
|
June
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 3
|
July
|
1
|
1
|
0
|
0
|
2
|
|
August
|
0
|
0
|
0
|
0
|
0
|
|
September
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 4
|
October
|
1
|
0
|
0
|
0
|
1
|
|
November
|
0
|
0
|
0
|
0
|
0
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2022
|
Quarter 1
|
January
|
1
|
0
|
0
|
0
|
1
|
|
February
|
1
|
0
|
0
|
0
|
1
|
|
March
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 2
|
April
|
13
|
1
|
0
|
0
|
14
|
|
May
|
13
|
0
|
0
|
0
|
13
|
|
June
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 3
|
July
|
0
|
0
|
0
|
0
|
0
|
|
August
|
0
|
0
|
0
|
0
|
0
|
|
September
|
1
|
1
|
0
|
0
|
2
|
|
Quarter 4
|
October
|
0
|
0
|
0
|
0
|
0
|
|
November
|
3
|
0
|
0
|
0
|
3
|
|
December
|
1
|
0
|
0
|
0
|
1
|
|
Year 2023
|
Quarter 1
|
January
|
3
|
0
|
0
|
0
|
3
|
|
February
|
0
|
0
|
0
|
0
|
0
|
|
March
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 2
|
April
|
2
|
0
|
0
|
0
|
2
|
|
May
|
0
|
0
|
0
|
0
|
0
|
|
June
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 3
|
July
|
0
|
0
|
0
|
0
|
0
|
|
August
|
8
|
0
|
0
|
0
|
8
|
|
September
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 4
|
October
|
0
|
0
|
0
|
0
|
0
|
|
November
|
0
|
0
|
0
|
0
|
0
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2024
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
0
|
0
|
0
|
0
|
0
|
|
March
|
1
|
1
|
0
|
0
|
2
|
|
Quarter 2
|
April
|
0
|
0
|
0
|
0
|
0
|
|
Total
|
100
|
4
|
0
|
0
|
104
|
