National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Contributions the understanding of the settlement structure in Bohemia during the Late Roman Period and the Migration Period. Contemporary stage of knowledge - questions and problems - evalution based on interregional relations
Jiřík, Jaroslav ; Košnar, Lubomír (advisor) ; Tejral, Jaroslav (referee) ; Varsik, Vladimír (referee)
Broader revue of the problem of the settlement structure of the Czech basin in the Late Roman and Migration period raises a number of observations based on different methodologies and the angles of the view by which the issue can be seen the research on this period. In principle, these circuits can be divided into several thematic groups: 1) Topography of the settlements and grave grounds, 2) the chronological aspects of the settlements, 3) cultural development and inter-regional relations, 4) issues of cultural and biological continuity and discontinuity, 5) a description and determination of the finds, 6) the methodological problems of the settlements and grave grounds research, 7) application of natural sciences, 8) the problem of the economic base and economic strategies, 9) research of the technological features. This paper tried to concentrate the various aspects of settlement structure development with a much-needed comparison with similar situations in the neighboring areas of the wider Central Europe. In a broader geographic distributed phenomena, such as the presence of barbarian foederati in the Roman army or in the case of migrant populations of Central Europe by 405/406 A.D., was clearly necessary the European interference. All these questions this work does not answer in the same level, which...
Energetical usage of phytomass for heating of buildings
JIŘÍK, Jaroslav
The bachelor thesis deals with energetical usage of phytomass for heating of buildings. The issue of biomass and energy crops were described based on available literature. The main objective was to compare Miscanthus, Phalaris arundinacea and Festuca arundinacea in terms of biomass yield, dry matter yield and the heat of combustion. Four wood pellet machines were studied in terms of energy consumption and the rate of pellet production. It was found that the annual costs of production of the required quantity of pellets (including costs of planting) for a model house built by current technologies were different by individual plants. The costs of heating using pellets of Phalaris arundinacea were 16 349 CZK per year, using Miscanthus 13 519 CZK per year and using Festuca arundinacea 9 749 CZK per year. It was concluded that to use the pellets made of Festuca arundinacea is the most advantageous possibility of heating.

See also: similar author names
2 JIŘÍK, Jaroslav
2 Jiřík, Jakub
4 Jiřík, Jan
1 Jiřík, Jiří
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