Browsing by Author "Hošek, Petr"
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- ItemAutomation of measurement of dynamic response of valvetrains(Technická Univerzita v Liberci, ) Hošek, Petr
- ItemExperimental fortification of intestinal anastomoses with nanofibrous materials in a large animal model(Nature Research, 2020) Rosendorf, Jáchym; Horáková, Jana; Klíčová, Markéta; Pálek, Richard; Červenková, Lenka; Kural, Tomáš; Hošek, Petr; Kříž, Tomáš; Tégl, Václav; Moulisová, Vladimíra; Tonar, Zbyněk; Treska, Vladislav; Lukáš, David; Liska, VáclavAnastomotic leakage is a severe complication in gastrointestinal surgery. It is often a reason for reoperation together with intestinal passage blockage due to formation of peritoneal adhesions. Different materials as local prevention of these complications have been studied, none of which are nowadays routinely used in clinical practice. Nanofabrics created proved to promote healing with their structure similar to extracellular matrix. We decided to study their impact on anastomotic healing and formation of peritoneal adhesions. We performed an experiment on 24 piglets. We constructed 3 hand sutured end-to-end anastomoses on the small intestine of each pig. We covered the anastomoses with a sheet of polycaprolactone nanomaterial in the first experimental group, with a sheet of copolymer of polylactic acid with polycaprolactone in the second one and no fortifying material was used in the Control group. The animals were sacrificed after 3 weeks of observation. Clinical, biochemical and macroscopic signs of anastomotic leakage or intestinal obstruction were monitored, the quality of the scar tissue was assessed histologically, and a newly developed scoring system was employed to evaluate the presence of adhesions. The material is easy to manipulate with. There was no mortality or major morbidity in our groups. No statistical difference was found inbetween the groups in the matter of level of peritoneal adhesions or the quality of the anastomoses. We created a new adhesion scoring system. The material appears to be safe however needs to be studied further to prove itsʹ positive effects.
- ItemNavrhnutí měřícího řetězce a vytvoření měřící aplikace pro sběr dat z Podzemního výukového střediska JOSEF(Technická Univerzita v Liberci, 2011) Vittek, Michal; Hošek, PetrThe aim of this Bachelor thesis is to propose and implement a possible approach to the measurement of rock temperature attributes. There is a comprehensive overview of the types of sensors for measuring contact temperature, their benefits and disadvantages. Measurement chain is designed, consisting of a sensor, a measurement card and the measurement application. Next, Labview development enviroment in which the application METEH was created is described. The functions of this application are analyzed and its code and programming approches that were used, such as the state machine or the queue, are described here. The application and measurement chain are then verified by the experiments in the underground educational facility Josef, which makes it possible to assess the suitability of the chosen solution. These experiments are described and discussed here.