Конструкции компрессоров объемного типа: учебное пособие / [Ю. В. Кожухов, А. А. Лебедев, С. В. Карташов [и др.]; Санкт-Петербургский политехнический университет Петра Великого. — Санкт-Петербург: ПОЛИТЕХ-ПРЕСС, 2020. — 1 файл (4,0 Мб). — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение). — <URL:https://elib.spbstu.ru/dl/5/tr/2020/tr20-83.pdf>. — DOI 10.18720/SPBPU/5/tr20-83. — Текст: электронный
|
Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2021
|
Quarter 1
|
January
|
22
|
0
|
0
|
0
|
22
|
|
February
|
7
|
0
|
0
|
0
|
7
|
|
March
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 2
|
April
|
6
|
0
|
0
|
0
|
6
|
|
May
|
5
|
0
|
0
|
0
|
5
|
|
June
|
5
|
0
|
0
|
0
|
5
|
|
Quarter 3
|
July
|
2
|
0
|
0
|
0
|
2
|
|
August
|
4
|
0
|
0
|
0
|
4
|
|
September
|
3
|
0
|
0
|
0
|
3
|
|
Quarter 4
|
October
|
6
|
0
|
0
|
0
|
6
|
|
November
|
5
|
0
|
0
|
0
|
5
|
|
December
|
6
|
0
|
0
|
0
|
6
|
|
Year 2022
|
Quarter 1
|
January
|
4
|
0
|
0
|
0
|
4
|
|
February
|
5
|
0
|
0
|
0
|
5
|
|
March
|
7
|
0
|
0
|
0
|
7
|
|
Quarter 2
|
April
|
1
|
0
|
0
|
0
|
1
|
|
May
|
15
|
0
|
0
|
0
|
15
|
|
June
|
5
|
0
|
0
|
0
|
5
|
|
Quarter 3
|
July
|
5
|
0
|
0
|
0
|
5
|
|
August
|
1
|
0
|
0
|
0
|
1
|
|
September
|
2
|
0
|
0
|
0
|
2
|
|
Quarter 4
|
October
|
2
|
0
|
0
|
0
|
2
|
|
November
|
16
|
0
|
0
|
0
|
16
|
|
December
|
32
|
0
|
0
|
0
|
32
|
|
Year 2023
|
Quarter 1
|
January
|
15
|
0
|
0
|
0
|
15
|
|
February
|
5
|
0
|
0
|
0
|
5
|
|
March
|
7
|
0
|
0
|
0
|
7
|
|
Quarter 2
|
April
|
2
|
0
|
0
|
0
|
2
|
|
May
|
20
|
0
|
0
|
0
|
20
|
|
June
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 3
|
July
|
5
|
0
|
0
|
0
|
5
|
|
August
|
3
|
0
|
0
|
0
|
3
|
|
September
|
11
|
0
|
0
|
0
|
11
|
|
Quarter 4
|
October
|
3
|
0
|
0
|
0
|
3
|
|
November
|
7
|
0
|
0
|
0
|
7
|
|
December
|
5
|
0
|
0
|
0
|
5
|
|
Year 2024
|
Quarter 1
|
January
|
12
|
0
|
0
|
0
|
12
|
|
February
|
10
|
0
|
0
|
0
|
10
|
|
March
|
5
|
0
|
0
|
0
|
5
|
|
Quarter 2
|
April
|
4
|
0
|
0
|
0
|
4
|
|
May
|
2
|
0
|
0
|
0
|
2
|
|
Total
|
287
|
0
|
0
|
0
|
287
|
