Heating Solution in the Family House

KOLÁŘ, Radim. Řešení vytápění rodinného domu. Ostrava, 2023. Bakalářská práce. Vysoká škola báňská – Technická univerzita Ostrava, Fakulta stavební. Katedra Prostředí staveb a TZB. Tématem bakalářské práce je navržení zdroje vytápění a ohřevu teplé vody do dvoupodlažního rodinného domu v Mukařově, který je určen k trvalému bydlení čtyřčlenné rodiny. První část práce se zabývá vytvořením projektové dokumentace pro provedení stavby – konkrétně jde o technickou zprávu a výkresovou část. Druhá část bakalářské práce se zaměřuje na navržení podlahového vytápění do celého domu, které bude mít jako hlavní zdroj tepla tepelné čerpadlo a jako dodatečný zdroj budou využity fotovoltaické panely. V této části práce je také vytvořena technická zpráva pro vytápění a výkresová část vytápění. V přílohách jsou detailní výpočty tepelných ztrát domu, průkazu energetické náročnosti budovy, podlahového vytápění a také technické listy jednotlivých navržených zařízení.KOLÁŘ,Radim. Heating Solution in the Family House. Ostrava, 2023. Bachelor thesis. Vysoká škola báňská – Technical University of Ostrava, Faculty of Civil Engineering, Department of Building Environment and Building Services. Main theme of the bachelor's thesis is the design of a heating source and hot water heating for a two-floor family house in Mukařov, which is intended for permanent residence of a family of four people. The first part of the bachelor's thesis deals with the creation of project documentation for the execution of the construction - specifically, it is a technical report and a drawing part. The second part of the bachelor's thesis focuses on the design of floor heating for the entire house, which will have a heat pump as the main source of heat and photovoltaic panels will be used as an additional source. In this part of the work, a technical report for heating and a drawing part of heating are also created. The appendices contain detailed calculations of the heat losses of the house, the certificate of the building's energy efficiency, underfloor heating, as well as the technical sheets of the individual designed devices.229 - Katedra prostředí staveb a TZBvelmi dobř

DESIGN OF AN EXPERIMENTAL LASER SPECKLE CONTRAST IMAGING SYSTEM AND IMAGE EVALUATION

Laser speckle contrast imaging (LSCI) is a noninvasive method, which uses scattered light to estimate the flow of a fluid containing scatterers. Thus, it can be especially used to estimate blood flow. Laser light is randomly scattered on the tissue and this refracted light interfere with reflected light, giving birth to laser speckle noise. As the light scatters on moving red blood cells, the speckle pattern is blurred due to the exposition time. This blurring is a function of velocity which can be estimated from the degree of blur, termed as speckle contrast. Therefore, blood cells act like contrast agent, outlining blood vessels. The simple setup, unnecessary contrast agent and unharming nature are making LSCI a popular tool for studying blood flow dynamics and vascular structure. This paper presents a new, simple experimental setup and image processing methods to treat laser speckle images aiming to estimate relative blood flow and vascular structure

Tissue perfusion modelling in optical coherence tomography

Background Optical coherence tomography (OCT) is a well established imaging technique with different applications in preclinical research and clinical practice. The main potential for its application lies in the possibility of noninvasively performing “optical biopsy”. Nevertheless, functional OCT imaging is also developing, in which perfusion imaging is an important approach in tissue function study. In spite of its great potential in preclinical research, advanced perfusion imaging using OCT has not been studied. Perfusion analysis is based on administration of a contrast agent (nanoparticles in the case of OCT) into the bloodstream, where during time it specifically changes the image contrast. Through analysing the concentration-intensity curves we are then able to find out further information about the examined tissue. Methods We have designed and manufactured a tissue mimicking phantom that provides the possibility of measuring dilution curves in OCT sequence with flow rates 200, 500, 1000 and 2000 L/min. The methodology comprised of using bolus of 50 L of gold nanorods as a contrast agent (with flow rate 5000 L/min) and continuous imaging by an OCT system. After data acquisition, dilution curves were extracted from OCT intensity images and were subjected to a deconvolution method using an input–output system description. The aim of this was to obtain impulse response characteristics for our model phantom within the tissue mimicking environment. Four mathematical tissue models were used and compared: exponential, gamma, lagged and LDRW. Results We have shown that every model has a linearly dependent parameter on flow (R2 values from 0.4914 to 0.9996). We have also shown that using different models can lead to a better understanding of the examined model or tissue. The lagged model surpassed other models in terms of the minimisation criterion and R2 value. Conclusions We used a tissue mimicking phantom in our study and showed that OCT can be used for advanced perfusion analysis using mathematical model and deconvolution approach. The lagged model with three parameters is the most appropriate model. Nevertheless, further research have to be performed, particularly with real tissue

Enhanced steady-state coherence via repeated system-bath interactions

The appearance of steady-state coherence (SSC) from system-bath interaction proves that quantum effects can appear without an external drive. Such SSC could become a resource to demonstrate quantum advantage in the applications. We predict the generation of SSC if the target system repeatedly interacts with independent and non-correlated bath elements. To describe their behavior, we use the collision model approach of system-bath interaction, where the system interacts with one bath element (initially in an incoherent state) at a time, asymptotically (in the fast-collision regime) mimicking a macroscopic Markovian bath coupled to the target system. Therefore, the SSC qualitatively appears to be the same as if the continuous Markovian bath would be used. We confirm that the presence of composite system-bath interactions under the rotating-wave approximation (RWA) is the necessary condition for the generation of SSC using thermal resources in collision models. Remarkably, we show that SSC substantially increases if the target system interacts collectively with more than one bath element at a time. Already few bath elements collectively interacting with the target system are sufficient to increase SSC at non-zero temperatures at the cost of tolerable lowering the final state purity. From the thermodynamic perspective, the SSC generation in our collision models is inevitably linked to a non zero power input (and thus heat dissipated to the bath) necessary to reach the steady-state, although such energetic cost can be lower compared to cases relying on SSC non generating interactions.Comment: 21 pages, 6 figures. Updated references. We have extended previous sections and added the thermodynamic cost for generating SS

Fusion based analysis of ophthalmologic image data

summary:The paper presents an overview of image analysis activities of the Brno DAR group in the medical application area of retinal imaging. Particularly, illumination correction and SNR enhancement by registered averaging as preprocessing steps are briefly described; further mono- and multimodal registration methods developed for specific types of ophthalmological images, and methods for segmentation of optical disc, retinal vessel tree and autofluorescence areas are presented. Finally, the designed methods for neural fibre layer detection and evaluation on retinal images, utilising different combined texture analysis approaches and several types of classifiers, are shown. The results in all the areas are shortly commented on at the respective sections. In order to emphasise methodological aspects, the methods and results are ordered according to consequential phases of processing rather then divided according to individual medical applications