Ли Ен Кван. Частотные модели периодически нестационарных систем с распределенными параметрами [Электронный ресурс]: Автореф. дис... канд. техн. наук: 05.13.18 / Ли Ен Кван; Санкт-Петербургский государственный политехнический университет. — Электрон. текстовые дан. (1 файл : 410 Кб). — Санкт-Петербург, 2003. — Загл. с титул. экрана. — Электрон. версия печ. публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Adobe Acrobat Reader 4.0. — <URL:http://elib.spbstu.ru/dl/530.pdf>.
|
Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2012
|
Quarter 1
|
2
|
0
|
2
|
0
|
4
|
|
Quarter 2
|
6
|
0
|
3
|
0
|
9
|
|
Quarter 3
|
5
|
0
|
3
|
0
|
8
|
|
Quarter 4
|
4
|
0
|
9
|
0
|
13
|
|
Year 2013
|
Quarter 1
|
1
|
0
|
2
|
0
|
3
|
|
Quarter 2
|
14
|
0
|
5
|
0
|
19
|
|
Quarter 3
|
3
|
0
|
1
|
0
|
4
|
|
Quarter 4
|
2
|
0
|
1
|
0
|
3
|
|
Year 2014
|
Quarter 1
|
3
|
0
|
3
|
0
|
6
|
|
Quarter 2
|
3
|
1
|
9
|
0
|
13
|
|
Quarter 3
|
4
|
0
|
6
|
0
|
10
|
|
Quarter 4
|
6
|
0
|
4
|
0
|
10
|
|
Year 2015
|
Quarter 1
|
5
|
0
|
4
|
0
|
9
|
|
Quarter 2
|
22
|
0
|
16
|
0
|
38
|
|
Quarter 3
|
14
|
0
|
9
|
0
|
23
|
|
Quarter 4
|
15
|
0
|
7
|
0
|
22
|
|
Year 2016
|
Quarter 1
|
8
|
0
|
10
|
0
|
18
|
|
Quarter 2
|
18
|
0
|
6
|
0
|
24
|
|
Quarter 3
|
8
|
0
|
0
|
0
|
8
|
|
Quarter 4
|
15
|
0
|
11
|
0
|
26
|
|
Year 2017
|
Quarter 1
|
11
|
0
|
4
|
0
|
15
|
|
Quarter 2
|
4
|
0
|
2
|
0
|
6
|
|
Quarter 3
|
10
|
0
|
9
|
0
|
19
|
|
Quarter 4
|
7
|
0
|
8
|
0
|
15
|
|
Year 2018
|
Quarter 1
|
12
|
0
|
8
|
0
|
20
|
|
Quarter 2
|
16
|
0
|
6
|
0
|
22
|
|
Quarter 3
|
8
|
0
|
9
|
0
|
17
|
|
Quarter 4
|
8
|
0
|
7
|
0
|
15
|
|
Year 2019
|
Quarter 1
|
9
|
0
|
5
|
0
|
14
|
|
Quarter 2
|
4
|
0
|
3
|
0
|
7
|
|
Quarter 3
|
6
|
0
|
11
|
0
|
17
|
|
Quarter 4
|
3
|
0
|
3
|
0
|
6
|
|
Year 2020
|
Quarter 1
|
10
|
0
|
10
|
0
|
20
|
|
Quarter 2
|
6
|
0
|
1
|
0
|
7
|
|
Quarter 3
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 4
|
6
|
0
|
9
|
0
|
15
|
|
Year 2021
|
Quarter 1
|
14
|
0
|
10
|
0
|
24
|
|
Quarter 2
|
7
|
0
|
17
|
0
|
24
|
|
Quarter 3
|
10
|
0
|
12
|
0
|
22
|
|
Quarter 4
|
14
|
0
|
11
|
0
|
25
|
|
Year 2022
|
Quarter 1
|
7
|
0
|
11
|
0
|
18
|
|
Quarter 2
|
7
|
0
|
6
|
0
|
13
|
|
Quarter 3
|
8
|
0
|
6
|
0
|
14
|
|
Quarter 4
|
11
|
0
|
4
|
0
|
15
|
|
Year 2023
|
Quarter 1
|
10
|
0
|
9
|
0
|
19
|
|
Quarter 2
|
1
|
0
|
3
|
0
|
4
|
|
Quarter 3
|
4
|
0
|
7
|
0
|
11
|
|
Quarter 4
|
5
|
0
|
12
|
0
|
17
|
|
Year 2024
|
Quarter 1
|
18
|
0
|
10
|
0
|
28
|
|
Quarter 2
|
6
|
0
|
10
|
0
|
16
|
|
Total
|
404
|
1
|
334
|
0
|
739
|
