Browsing by Author "Hégrová, Božena"
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- ItemŘídicí systém pro laboratorní úlohu(Technická Univerzita v Liberci, 2012) Hégrová, Božena; Novotný, PetrThe control system for laboratory task includes an overview of the current offer of the famous manufacturers of control systems and actuators in the field of air conditioning and ventilation, including a shortlist of other usable controls and functional elements in other technical sectors. The theoretical basis is then used to design and building automation system still manually operated air conditioning system used in the laboratory of the Department of Energy facilities for teaching and testing new technologies and solutions in this area. The work also includes a variant of the remote control unit via a data bus, including software simulation of the supply air temperature control. Besides increasing the level of ergonomics to the existing system is also a comprehensive approach to air conditioning units used by commercial solutions in industrial plants and office buildings.
- ItemŘídicí systém pro laboratorní úlohuHégrová, Božena
- ItemTepelné ztráty budovy(Technická Univerzita v Liberci, 2009) Hégrová, Božena; Novotný, PetrObjective of this work was to pass present construction state of house in Liberec and to suggest optimalization for energy conservation on heating. On the heat-loss calculation resolutions, choice variants heat cladding constructions and capital expenditure, to recommend source for new heating system. Project documents of house weren't available, composition construction and proportions were to be assumed from original national scheme of assistance and from take measurements. To heat loss calculation object were defined first given conditions locations, i. e. a computational outside temperature, an elevation above sea-level, an intensity wind. In next step the building rating object, it means thermally technical characteristic constructions. These funds were to be engaged to the programme firm Protech, Ltd in the town Nový Bor, according to the methods effected calculation for every room separately. Because constructions don't suit its thermal resistance today's needs, 4 variants were to be designed heat cladding and advised the capital expenditure and the calculate savings. Proposal boiler - room is effected for variant heat cladding object preferred by some investors, in spite of acts about best - saving solving, because it presumed the heat cladding siding, too. Inasmuch as, that the thing is a historical object with dominant granite elements that this method of the heat cladding would quell an individuality of architecture in Liberec from beginning last century. At the close this work primary objective is stated for survey rules prosecution building that the will lead to dispraise power heftiness on heating out of limits up-to-date facilities heat fair weather for its user.
- ItemTepelné ztráty budovyHégrová, Božena
- ItemVývoj upravených nanovlákenných nosičů pro kryty ran a tkáňové inženýrství(Technická Univerzita v Liberci, 2011) Hégrová, Božena; Mikeš, PetrThe paper summarizes the findings of new dressing materials, focusing on their sorption properties. It provides basic information on the production of exudate in the wound and its healing. Furthermore, it deals with certain polymers to produce scaffolds for bone implants. It describes the principle of electrospinning of polymers, physical laws and parameters of the process. It explains the phenomenon known as wind power. The experimental section describes the development of new equipment for production of nanofiber layers with particles of activated carbon, alumina and hydroxyapatite. To access the images from electron microscopy and measurement values accompanied by adsorption. The aim of this work is the knowledge gained in the theoretical and the experimental conclusion is that they can also be used for further research in tissue engineering.