|
|
Operating parameters of LED light sources
Janík, Daniel ; Mikulka, Jan (referee) ; Havlíková, Marie (advisor)
The aim of the thesis is to introduce the basic photometric quantities and operating parameters of LED light sources, according to which the light sources are evaluated and compared. The thesis examines effects of high temperature and elevated stress on LED retrofits and a design of measurement methods to measure these influences. According to the proposed methods, nine samples of light sources were measured and compared to each other on a basis of the measurements. Comparison was made from the point of view of the energy as well as the quality of the produced light. The results were also compared to the parameters specified by the producers.
|
|
|
The French Foreign Legion: Building of a New, Common Identity
Janík, Daniel ; Matějka, Ondřej (advisor) ; Perottino, Michel (referee)
The author bases his bachelor thesis "The French Foreign Legion: Building of a New, Common Identity" on the presumption that creating such common identity within the men who join the Legion is one of the main factors ensuring that the Foreign legion functions as a military unit. The neccessity of paying attention to the question of identity in the Legion follows the fact, that this unit consists mainly of foreigners. These men need to be formed during the training in a way that they can become a functional part of the Legion. Observation and analysis of the means of building and maintaining the common identity in the Foreign legion forms the main contents of this thesis. The identity building itself comes in form of procedures that weaken and change the original identity of the legionaries, as well as strengthen the soldiers' loyalty towards the Legion and the sense of brotherhood among legionaries. The identity that the Legion tries to create, is also being constantly fortified by legionary symbols and traditions. However, the loyalty of the soldiers towards the Legion isn't always strong enough, which is reflected in phenomena such a desertions. And even though the Legion functions well despite these problems, the question remains to what extent the buiding of the common legionary identity is the primary...
|
|
|
Light Sources
Janík, Daniel ; Bejček, Ludvík (referee) ; Havlíková, Marie (advisor)
The aim of the thesis is to introduce the basic photometric quantities and measurement of these quantities. Next target is to get acquainted with the basic types of light sources, including various types, their construction and principle of their function. The work also deals with the measurement of electrical and photometric parameters of nine samples of concrete light sources. Measured sources in terms of energy and terms of quality of the light are compared with each other and with the data supplied by the producer.
|
guest ::
RSS feed.