Расчет вала на прочность и жесткость: учебное пособие / [П. А. Павлов, Л. К. Паршин, В. А. Шерстнев [и др.]; Санкт-Петербургский государственный технический университет. — Санкт-Петербург: Изд-во СПбГТУ, 1998 (Санкт-Петербург, 2020). — 1 файл (2,35 Мб). — Загл. с титул. экрана. — Цифровая копия печатной публикации 1998 г. — Доступ по паролю из сети Интернет (чтение, печать, копирование). — <URL:http://elib.spbstu.ru/dl/2/si20-347.pdf>. — DOI 10.18720/SPBPU/2/si20-347. — Текст: электронный
|
Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2020
|
Quarter 3
|
September
|
3
|
0
|
0
|
0
|
3
|
|
Quarter 4
|
October
|
4
|
0
|
0
|
0
|
4
|
|
November
|
0
|
0
|
1
|
0
|
1
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2021
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
0
|
0
|
0
|
0
|
0
|
|
March
|
1
|
0
|
2
|
0
|
3
|
|
Quarter 2
|
April
|
3
|
1
|
0
|
0
|
4
|
|
May
|
6
|
0
|
3
|
0
|
9
|
|
June
|
4
|
0
|
1
|
0
|
5
|
|
Quarter 3
|
July
|
0
|
0
|
0
|
0
|
0
|
|
August
|
0
|
0
|
1
|
0
|
1
|
|
September
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 4
|
October
|
1
|
0
|
0
|
0
|
1
|
|
November
|
1
|
0
|
0
|
0
|
1
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2022
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
30
|
0
|
5
|
0
|
35
|
|
March
|
38
|
0
|
2
|
0
|
40
|
|
Quarter 2
|
April
|
26
|
0
|
6
|
0
|
32
|
|
May
|
11
|
0
|
3
|
0
|
14
|
|
June
|
0
|
0
|
1
|
0
|
1
|
|
Quarter 3
|
July
|
1
|
0
|
1
|
0
|
2
|
|
August
|
0
|
0
|
0
|
0
|
0
|
|
September
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 4
|
October
|
2
|
0
|
1
|
0
|
3
|
|
November
|
0
|
0
|
0
|
0
|
0
|
|
December
|
2
|
0
|
1
|
0
|
3
|
|
Year 2023
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
2
|
0
|
3
|
0
|
5
|
|
March
|
7
|
0
|
2
|
0
|
9
|
|
Quarter 2
|
April
|
14
|
0
|
3
|
0
|
17
|
|
May
|
16
|
0
|
2
|
0
|
18
|
|
June
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 3
|
July
|
0
|
0
|
1
|
0
|
1
|
|
August
|
0
|
0
|
0
|
0
|
0
|
|
September
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 4
|
October
|
8
|
0
|
1
|
0
|
9
|
|
November
|
1
|
0
|
0
|
0
|
1
|
|
December
|
2
|
0
|
0
|
0
|
2
|
|
Year 2024
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
4
|
0
|
4
|
0
|
8
|
|
March
|
9
|
0
|
3
|
0
|
12
|
|
Quarter 2
|
April
|
1
|
0
|
1
|
0
|
2
|
|
May
|
0
|
0
|
0
|
0
|
0
|
|
Total
|
202
|
1
|
48
|
0
|
251
|
