|
|
Regenerace smyslových orgánů u raků
KOR, Golara
The antennae are a crucial sensory organ in crayfish that plays vital roles in their survival, communication, and orientation within their environment. They are equipped with sensory hairs that enable crayfish to detect various stimuli. Crayfish possess the unique ability to regenerate their antennae. Hemocytes are specialized cells within crayfish and play a crucial role in their immune system and contribute to the process of regeneration. We applied cryo-scanning and Transmission electron microscopies to study sensory organ morphology and regeneration in crayfish. In Chapter 2, cryo-scanning electron microscopy was used to identify potential differences in antennal morphology in six different crayfish species including marbled crayfish Procambarus virginalis, Mexican dwarf crayfish Cambarellus patzcuarensis, red swamp crayfish Procambarus clarkii, signal crayfish Pacifastacus leniusculus, common yabby Cherax destructor, and spiny-cheek crayfish Faxonius limosus. We observed significant differences among the six crayfish species in the ratios of antenna length, segment length and width to carapace length, and the number of segments. Examination of ultrastructural features unveiled differences in the distribution patterns of sensory hairs along the antenna and the morphology of the antennal surface. The varying morphology of antennae among studied species possibly indicates an adaptation to the specific conditions of their respective habitats. Furthermore, the outcomes demonstrated that a combination of variations in both antennal morphological characteristics and biometric measurements could effectively help us to distinguish the different studied crayfish species. In Chapter 3, the ultrastructural behaviour of hemocytes during coagulation and phagocytosis in the initial phases of injury in marbled crayfish was explored using transmission electron microscopy. During the coagulation process, hemocytes experienced marked transformations in morphology. The cytoplasmic granules exhibited a change from electron-dense to electron-lucent forms with the progress of coagulation. The transformed granules containing amorphous, electron-lucent material were observed to combine and release their contents into the extracellular space as part of the coagulation process. Additionally, it was observed that the nucleus contents also play a role in the coagulation process. Furthermore, the amputation of the leg led to substantial muscle degeneration, and phagocytic hemocytes start to take up the necrotic tissues. Besides, we observed the digested remains from phagocytized necrotic tissues merged into granules and other cellular components, thereby enhancing the granularity of the hemocytes and altering their cellular morphology. However, it is essential to note that hemocyte degranulation during coagulation could potentially reduce their granularity. Since morphological features are critical for classifying hemocytes, these morphological changes during coagulation and phagocytosis must be considered significant factors. The degenerated material that stored inside phagocytic hemocytes may have application in immunological and regeneration processes. In Chapter 4, we employed transmission electron microscopy to explore the ultrastructural aspects of potential immune cell involvement in nerve regeneration within crayfish antennae post-amputation. The findings indicated that, during nerve regeneration, all three forms of hemocytes were present. However, the granules within semi-granulocytes and granulocytes mainly contributed to the generation of new organelles such as mitochondria, the Golgi apparatus, and nerve fibers in the regenerated nerves of crayfish antennae. We revealed the transformation of granules of hemocytes into diverse organelles during the process of nerve regeneration at the ultrastructural level. In conclusion, these granules function as compact repositories of adaptable materials carried by immune cells, capable of transformatio
|
|
|
ZBROJOVKA FACTORY BRNO
Kraut, Jan ; Stuchlík, Aleš (referee) ; Havliš, Karel (advisor)
ZBROJOVKA BRNO - Opportunity for the city Strategies for Zbrojovka Brno, the third largest brownfield in the city. Urban policy and the process of integration of the site into the city and connection with his organism. Creating a territorial strategy or tactical urbanism procedure that tries successive interventions re- incorporate this into the organism of the city , in a way that fully reflect the needs , possibilities and polarity in the territory. It is essential that the established process allowed for long-term gradual regeneration, which can be interrupted by economic pressure, and in its every moment of creating a working environment that sudden interruption of restorative work in their stride. The entire process of restoring the site is divided into several phases , but at each flexibly connected and can run such a large area partially independently . Based on the current state of the complex, which is gradually opened , are removed objects that are in disrepair , and those that hinder the development of the area and its smooth functioning. Subsequently, traffic control , area connected to public transport. As a result, the situation will stabilize and rehabilitate the total area of the factory and its surroundings. All through individual interventions in its structure and public space. The whole process is documented on the basic objectives and approaches of the phases that are subsequently documented reference interventions and achievements typical of the condition of the site. All complemented by an analysis of the phenomenon of the basic tasks of rehabilitation of the site.
|
|
|
MOSILANA FACTORY BRNO
Cyrnerová, Jana ; Hýl, Petr (referee) ; Havliš, Karel (advisor)
Subject of master thesis is urban nad architecture study of former textile factory area and land along the street Křenová. The main theme of the solution is integration and rehabilitation of the contemporary building into organism of the city and susceptible addition of new masses which is based on the principles of compact city. Emphasis is also put on increasing throughput and quality of public spaces, which is missing nowadays. In detail I am focused on new buildings – the residential house on the green parking platform, row houses along the river Ponávka and alternative conversion of fomer Dye House into Mother Center. The aim is to propose some alternative to currently inappropriate land use and invention based on the Regional Plan.
|
|
|
Air conditioning in the theater
Lenhart, Marek ; Vlček, Petr (referee) ; Blasinski, Petr (advisor)
The Bachelor’s dissertation is divided into three parts: theoretical, computational and design. The theoretical part is focused on heat recovery systems in air condition. The computational and project part deal with the design of air ventilation, heating and air conditioning theater.
|
|
|
Light Induced Degradation of Solar Cells
Indra, Jiří ; Solčanský, Marek (referee) ; Vaněk, Jiří (advisor)
This master’s thesis deals with light induced degradation problems. In theoretical section it describes essentials of PN junction function and next light induced degradation mechanisms of solar cells and its symptoms at solar cell operation. In practical section it deals with set of measurements of solar cells since production of the silicon wafer to the complete solar cell. Selected cells are submitted to light induced degradation, measured dependencies are then evaluated. Degraded samples are subsequently recovered by two ways at high temperature treatment. The issues are evaluated.
|
|
|
Conversion of Vlněna boiling-room
Gebauer, Pavel ; Štikar, Jaroslav (referee) ; Nový, Alois (advisor) ; Donaťáková, Dagmar (advisor)
The Bachelor thesis deals with the reconstruction and restoration of the building which is part of Vlněna complex in Brno. Location, in which is the object situated, is undergoing an extensive/large modernisation. Almost all historic buildings of this industrial complex are being replaced with high-rise administration blocks which deviate from historical context of the area. One of those exceptions, is also the object of this thesis. It is a former heating building that supplied energy to a mentioned complex. The attempt of the design was maximal purification from contemporary and purely functional interventions in order to support the historical footprint which is a fundamental factor for revitalization of the remaining parts of the area. The building is, in its own way, a manifestation of its surroundings. The object was cleansed to its visible structure made of bricks and wooden beam ceilings. This is refering to a time when these materials were understood as an essential costruction of every building, until they were replaced with structures from reinforced concrete and transparent facades with purely functional approach, which is visible in this new vision of Vlněna complex. Considering the administration aspect of the rest of the area, the building with its functional usage is trying to stimulate life and by that add space for social facilities. The object poetically named “the centre of regeneration“ includes many ways of relaxation which is an integral element to a monotone activities of administration buildings. The lower parts of the building contain a social function in the form of mini-brewery with beer hall/cellar, and restaurant in second floor. The other floors then offer regeneration, mental and physical, from massages to yoga practice. The result of this thesis is a revitalizational boost of the area. The object, in its function and form, is an opposite of new modern part of the complex. However, the object should not be unders
|
|
|
Bronx - address substitution (reconstruction house of correction)
Kozel, Ondřej ; Pokorný, Filip (referee) ; Havliš, Karel (advisor)
The subject of this graduation thesis is a conceptual architectural study of the former house of correction extension, annex and reconstruction and also a new ideological solution of adjacent areas and total building plan . The house is located in the Brno’s Bronx district. The reconstruction is focused on the use of alternative housing concepts with the general target at the whole city quarter reneration – address change.
|
|
|
Regeneration of heat and water for paper drying process
Milko, Michal ; Klimeš, Lubomír (referee) ; Pospíšil, Jiří (advisor)
Diploma thesis titled Regeneration of heat and water for paper drying process analyzes use of waste hot air ventilated from drying section of paper mill. Moreover is described detailed design process of recuperation heat exchanger, which should be part of regeneration loop of paper mill. Designed heat exchanger is plate-fin crossflow heat exchanger. For deasign is used – NTU method.
|
|
|
Biom
Bolcek, Roman ; Tholt, Tomáš (referee) ; Vítek, Jiří (advisor)
Our planet has been facing enormous challenges over the last century, caused by population growth, an ever-evolving industry, resulting in ever-increasing CO2 production, rising water levels, misuse of agricultural land and the extinction of animal species. This causes the destruction of the Biome. Architectural and urban tendencies in the construction of cities, which do not change even today, use the maximum area, materials that cannot be recycled, also have a large share in this. Insufficient use of renewable resources, modern agriculture, self-sufficiency, both housing and urban structures. The reason for not using these technologies is largely a political and commercial problem. The aim of this work is to examine the problems we face today and find meaningful solutions. Change existing architectural and urban trends. To create a self-sufficient structure in places where Biomes were destroyed and to create new ones accordingly. These places often have poor living conditions, such as high temperatures, lack of drinking water and overcrowding. With the help of simple rules of working with the landscape and the use of modern technology, create a new biosphere environment, change the climatic conditions in a given place and create suitable conditions for the life of both plant and animal communities. The structure should be inhabited by a certain number of people who will live in modules that will be fully self-sufficient, following the ISS model. Provide plenty of drinking water, food and energy. The structure should be created from plastic waste by new construction technologies, such as 3D printing using nanotechnology and carbon fiber. This should make it fully recyclable and renewable. The goal is to work with one structure and subsequently create another structure.
|
|
| |
guest ::
