Коваль, Владимир Владимирович. Исследование влияния формы рабочего импульса на эффективность работы осветительной цезиевой лампы [Электронный ресурс]: бакалаврская работа / В. В. Коваль; Санкт-Петербургский политехнический университет Петра Великого, Институт физики, нанотехнологий и телекоммуникаций, Физической электроники. — Электрон. текстовые дан. (1 файл : 1,05 МБ). — Санкт-Петербург, 2015. — Загл. с титул. экрана. — Доступ по паролю из сети Интернет (чтение, печать, копирование). — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/6914.pdf>.
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Period
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Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2015
|
Quarter 3
|
September
|
7
|
0
|
5
|
0
|
12
|
|
Quarter 4
|
October
|
5
|
0
|
18
|
0
|
23
|
|
November
|
14
|
0
|
3
|
0
|
17
|
|
December
|
7
|
0
|
16
|
0
|
23
|
|
Year 2016
|
Quarter 1
|
January
|
4
|
0
|
7
|
0
|
11
|
|
February
|
3
|
0
|
5
|
0
|
8
|
|
March
|
3
|
0
|
2
|
0
|
5
|
|
Quarter 2
|
April
|
8
|
0
|
3
|
0
|
11
|
|
May
|
2
|
0
|
6
|
0
|
8
|
|
June
|
12
|
0
|
0
|
0
|
12
|
|
Quarter 3
|
July
|
1
|
0
|
4
|
0
|
5
|
|
August
|
1
|
0
|
0
|
0
|
1
|
|
September
|
3
|
0
|
0
|
0
|
3
|
|
Quarter 4
|
October
|
2
|
0
|
1
|
0
|
3
|
|
November
|
1
|
0
|
1
|
0
|
2
|
|
December
|
3
|
0
|
7
|
0
|
10
|
|
Year 2017
|
Quarter 1
|
January
|
3
|
0
|
8
|
0
|
11
|
|
February
|
0
|
0
|
5
|
0
|
5
|
|
March
|
5
|
0
|
10
|
0
|
15
|
|
Quarter 2
|
April
|
0
|
0
|
6
|
0
|
6
|
|
May
|
2
|
0
|
12
|
0
|
14
|
|
June
|
0
|
0
|
3
|
0
|
3
|
|
Quarter 3
|
July
|
3
|
0
|
12
|
0
|
15
|
|
August
|
2
|
0
|
4
|
0
|
6
|
|
September
|
0
|
0
|
3
|
0
|
3
|
|
Quarter 4
|
October
|
5
|
0
|
4
|
0
|
9
|
|
November
|
2
|
0
|
2
|
0
|
4
|
|
December
|
3
|
0
|
5
|
0
|
8
|
|
Year 2018
|
Quarter 1
|
January
|
1
|
0
|
2
|
0
|
3
|
|
February
|
1
|
0
|
4
|
0
|
5
|
|
March
|
0
|
0
|
1
|
0
|
1
|
|
Quarter 2
|
April
|
4
|
0
|
15
|
0
|
19
|
|
May
|
2
|
0
|
14
|
0
|
16
|
|
June
|
0
|
0
|
18
|
0
|
18
|
|
Quarter 3
|
July
|
0
|
0
|
3
|
0
|
3
|
|
August
|
3
|
0
|
3
|
0
|
6
|
|
September
|
1
|
0
|
3
|
0
|
4
|
|
Quarter 4
|
October
|
1
|
0
|
7
|
0
|
8
|
|
November
|
0
|
0
|
2
|
0
|
2
|
|
December
|
2
|
0
|
3
|
0
|
5
|
|
Year 2019
|
Quarter 1
|
January
|
1
|
0
|
3
|
0
|
4
|
|
February
|
1
|
0
|
1
|
0
|
2
|
|
March
|
8
|
0
|
5
|
0
|
13
|
|
Quarter 2
|
April
|
1
|
0
|
5
|
0
|
6
|
|
May
|
1
|
0
|
1
|
0
|
2
|
|
June
|
0
|
0
|
3
|
0
|
3
|
|
Quarter 3
|
July
|
0
|
0
|
0
|
0
|
0
|
|
August
|
1
|
0
|
1
|
0
|
2
|
|
September
|
1
|
0
|
4
|
0
|
5
|
|
Quarter 4
|
October
|
1
|
0
|
3
|
0
|
4
|
|
November
|
0
|
0
|
3
|
0
|
3
|
|
December
|
0
|
0
|
3
|
0
|
3
|
|
Year 2020
|
Quarter 1
|
January
|
0
|
0
|
3
|
0
|
3
|
|
February
|
1
|
0
|
1
|
0
|
2
|
|
March
|
5
|
0
|
10
|
0
|
15
|
|
Quarter 2
|
April
|
2
|
0
|
0
|
0
|
2
|
|
May
|
0
|
0
|
0
|
0
|
0
|
|
June
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 3
|
July
|
0
|
0
|
0
|
0
|
0
|
|
August
|
0
|
0
|
0
|
0
|
0
|
|
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
|
|
Total
|
139
|
0
|
273
|
0
|
412
|
