Natural wastewater treatment plant project for the municipality of Hačky

Cílem práce je vytvoření rešerše, popis a následný výpočet a návrh přírodní čistírny odpadních vod. Závěrem je zpracování projektové dokumentace. Práce je rozdělena na teoretickou a praktickou část. V teoretické části je cílem obecný popis lokality a rešerše technologií pro přírodní čistírny odpadních vod pro malé obce. V praktické části je vypracována projektová dokumentace, která bude sloužit jako vstupní podklad pro územní řízení i stavební povolení.The aim of the thesis is research, description, and subsequent calculation and design of the natural wastewater treatment plant. The conclusion is the processing of project documentation. The thesis is divided into the theoretical and practical parts. In the theoretical part, the aim is a general description of the location and research of natural wastewater treatment plant technologies for small municipalities. In the practical part, there is designed project documentation, which will be used as an input basis for zoning management and building permit.

The effect of post-harvest treatment on the quality of sweet cherries during storage

Cherries are a traditional commodity grown in the Czech Republic. Placing into a cold room is essential for the fruit to be preserved in the long term. Even if optimum storage conditions are followed, the shelf life is relatively short. This study observed the effect of packing cherries into the Xtend polymer wrap on slowing down the degradation of the fruit during the storage period. The experiment was conducted using 4 varieties of the sweet cherry (Prunus avium L.) from the identical site (Stošíkovice, Czech Republic) - 'Vanda', 'Kordia', 'Sweetheart' and 'Regina'. Part of the fruit was stored at 20 °C for 7 days (conditions in retail chains) and other part of the fruit was stored at 1 °C for 50 days, first half of fruit was stored in Xtend polymer wrap and second half in the normal air conditions. Changes were also investigated in fruit quality parameters (soluble solids, titratable acidity, weight loss, peel firmness and respiration intensity) under the shelf life conditions when the fruit was placed at the distribution temperature of 20 °C after removal from the store and analysed after 5 and 10 days. Packed fruit exhibited significantly lower weight loss than unpacked fruit. Unpacked fruits showed visible signs of wilting and it is connected to the water loss and loss of turgidity of fruit. Soluble solids content and titratable acidity reduced generally less in unpacked fruit, which was probably related to the higher weight loss in this variant. Between the packaged and control fruit firmness was not statistically significant. Carbon dioxide production characteristic the intensity of respiration was typically higher at 1 °C for fruit packed in the Xtend film. This fruit, however, largely responded by reducing the intensity of respiration when removed from the store and placed at 20 °C, whereas in unpacked fruit there was a several-fold increase in carbon dioxide production under such conditions

The possibilities of increasing lignan content in food

Lignans are bioactive substances which belong to polyphenols. This compounds can be found in plants including coniferous trees. Lignans are secondary plant metabolites with wide range of biological effects, such as antimicrobial, antivirus or anticancer. They also serve as antioxidants and are naturally occurring compounds which are found in food rich in fibre. There are more than 200 lignans that originate from more than 70 plant families. They can be found in all parts of the plant, mainly in seeds. Almost 37% of total lignan intake in human diet comes from drinking tea and coffee. Fruit and vegetable contain only about 1% of lignans, but they are also significant source of lignans because they are consumed in higher amounts than seeds. 7-hydroxymatairesinol is the main representative of lignans. It is white powder with great health benefits and it is present in the knots of coniferous trees, especially in knots of spruce. Lignans were extracted from the knots and used for fortifying fruit and vegetable spreads. Subsequently, the fortified products became subject to sensory analysis, their antioxidant capacity was measured by the FRAP method, total polyphenols content was found and lignan content determined using the HPLC method. The aim was enriching commonly consumed foods by healthy lignans to avoid negative effects on the sensory quality of these products by the bitter taste of the lignan extract. Of the tested foods, plum jam and red pepper paste are the best options as they best block the bitter taste of lignans. There was a positive increase in antioxidant capacity in food products fortified by the lignan extract. For plum jam, strawberry jam, strawberry spread and red pepper paste, the more lignans were added to the products, the greater was the level of antioxidant capacity. The highest antioxidant capacity was reached in samples with the added amount of 340 mg of lignan per kg of product. As with the antioxidant capacity, total polyphenols content is dependent on the quantity of added lignans. Plum jam is the only exception, for which there was no statistically evident difference between the doses of 170 mg and 340 mg of lignans per kg. The values of lignans measured for samples with added 340 mg of lignans per kg range from 313 mg to 339 mg. For samples with addition of 170 mg of lignans per kg the measured values range from 129 to 164 mg per kg. Although lignans are beneficial for health, they are not acceptable to deteriorate taste of the product. The samples containing the highest dose of lignans, i.e. 340 mg of lignans per kg, were rated as the least acceptable by consumer. Evaluated as the most suitable in this regard was plum jam with a dose of 170 mg of lignans per kg of product where lignans were not found to possess a sensory effect on the acceptability of the product.

Methods for the determination of machining precision of 3-axis CNC milling machine and its applications

Bakalářská práce se zaměřuje na měření přesnosti CNC frézky. V první části se zaměřuje na teorii zkoušek dle normy ISO 230 a na zkušební artefakty, které slouží též k měření přesnosti obráběcích strojů. V druhé části práce je popsáno vytváření praktické části, modelování artefaktu, tvorba programu a vlastní obrábění daného artefaktu. Nakonec byla měřena přesnost obrábění pomocí CMM a byla vyhodnocena výsledná přesnost.Bachelor thesis is focused on accuracy measurement of CNC milling machine. In the first part it focuses on the theory of testing according to ISO 230 norm and on testing artefacts, which are used for accuracy measurement of milling machines. In the second part there is a description of the practical part, artefact modelling, creation of the program and milling of the given artefact. At the end the accuracy of milling was measured and the result accuracy was evaluated

Adaptation of a pediatric patient on M.Crohn

Ústav ošetřovatelstvíDepartment of nursingThird Faculty of Medicine3. lékařská fakult

Vliv vybraných kyselin na senzorické vnímání kyselosti

This thesis was prepared at the Institute of Post-Harvest Technologies of Horticulture at the Faculty of Horticulture of the Mendel University in Brno in years 2013/2014. It focuses on the physiological and anatomical descriptions of sensory organs with emphasis on the physiology of taste perception and on methods which are used for sensory analysis of foodstuffs. A section of the thesis speaks about selected organic acids (citric, lactic, tartaric and malic) which were used in it's experimental part. The practical part of the thesis is aimed at researching the influence of various acids on perception of the intensity of acidic taste, by applying the following methods of sensory analysis -- pair test, the graphic scale evaluation method and sequential test. Also the synergetic and antagonistic relations between citric acid, tannin, saccharose and sodium chloride were examined in one of the experiments

Assessment of sewerage systems of urban catchments

The aim of the work is to create a search, description and subsequent selection of methods for assessing the sewer system. The work is divided into theoretical and practical part. In the theoretical part, the aim is to create a search for sewerage and its objects, a description of remediation methods and an overview of methods for assessing the sewer system in terms of hydraulic, construction, technical and operational research. The practical part assesses the current state of a selected section of the sewer system in Znojmo

Airport Hall

Konstrukce letištní haly je navržená jako ocelová.Práce byla navržena ve 2 variantách.Konstrukce haly je v půdoryse radiálně zakřivená s kruhovou výsečí na podélné straně. Konstrukce zastřešení se skládá z 8 příhradových vazníků v osové vzdáleností 9 m. Pásy vazníku jsou obloukové a navrženy jako rovnoběžné. Vazníky jsou navrženy na rozpětí 40m. Maximální světlá výška haly ve vrcholu je 14m. Letištní hala byla řešena v programu Scia Engineer 2014 a součástí je i výkresová dokumentace.The construction of the concourse is designed from steel.Construction was designed in 2 variants.The construction of the hall is radially curved in plan view with a circular sector on the longitudinal side.Roof structure consists of eight trusses at an axial distance of 9 m.Tracks are arched truss designed as a parallel.Trusses are designed to span 40m.Maximum ground clearance hall at the top is 14 meters.Letištní hala byla řešena v programu Scia Engineer 2014 a součástí je i výkresová dokumentace.

Disseminated Pelvic Actinomycosis Caused by Actinomyces Naeslundii

Actinomycosis is a chronic bacterial infection characterized by continuous local spread, irrespective of anatomical barriers, and granulomatous suppurative inflammation. Due to its expansive local growth, it can simulate a malignant tumour. Subsequent hematogenous dissemination to distant organs can mimic metastases and further increase suspicion for malignancy. A case of severe disseminated pelvic actinomycosis associated with intrauterine device is described here. The patient presented with a pelvic mass mimicking a tumour, bilateral ureteral obstruction, ascites, multinodular involvement of the liver, lungs and spleen, inferior vena cava thrombosis and extreme cachexia. Actinomycosis was diagnosed by liver biopsy and confirmed by culture of Actinomyces naeslundii from extracted intrauterine contraceptive device (IUD). Prolonged treatment with aminopenicillin and surgery resulted in recovery with moderate sequelae