Analysis of Manufacturing Processes and Proposal their Improvement

Bakalářská práce se zabývá analýzou konkrétní operace ve výrobním procesu v organizaci, zaměřené na textilní výrobu. V teoretické části je popsána samotná výroba a textilní průmysl, kalkulace a hodnocení investic. V analytické části práce je představena textilní firma Macte spol. s r. o., průběh zakázek a rozbor stříhání a alternativních možnosti stříhání. V návrhové části jsou tyto možnosti zhodnoceny a okomentovány.This thesis analyses the specific operation in the production process of the company Macte spol. s r. o. focusing on textile production. The theoretical part includes a description of manufacturing processes, textile industry, calculations and investment evaluation. The analytical part is focused on the characteristic of the current situation, organization economic performance, cutting and alternative possibilities connected with improvement and cost reduction. Finally, the proposals are described and evaluated.

SYSTEMS OF MATERIAL CALL-OFFS IN ŠKODA AUTO a.s.

katedra: KOM; přílohy: CD-ROM; rozsah: 41 s.This bachelor thesis is aimed at sphere of supplies and costs related to it. There are descriptions of individual kinds of costs, ways how the supplies are managed and kinds of costs, which are supplies associated with. Next part is about individual principles of materials flow with an example for each principle. Another chapter is about individual kinds of materials flows and ways how SKODA AUTO a.s. manages ordering of materials Final chapter analyzes the financial cost of storage and transport of material. A practical solution, shows kanban suppliers importing or storing and demonstrating financial savings.Tato bakalářská práce je zaměřena na oblast zásob a s nimi spojené náklady. Popsány jsou jednotlivé druhy nákladů a způsoby, jakými jsou zásoby řízeny a druhy nákladů, které jsou se zásobami spojeny. Další část je pak věnována jednotlivým principům toků materiálu včetně představení zástupců, které tyto principy reprezentují. Následující kapitola je věnována představení jednotlivých druhů materiálových toků a způsobů objednávek materiálu, které jsou nejčastěji využívány ve ŠKODA AUTO a.s. Závěr práce se zabývá analýzou finanční náročnosti skladování a dopravy materiálu. Dále pak praktickým řešením, u kterých kanbanových dodavatelů se vyplatí dovážet nebo skladovat s ukázkou finanční úspory

Doprinos procjeni svojstava toplinske izolacije jednostrukoga i dvostrukog prozora na drvenoj kući

The paper describes the method for the determination and evaluation of thermal insulation properties of various types of windows made from pine wood. The method has been used for a simple and a double window that are parts of a log house in the Czech Republic. Both windows are located in one room. The method for the evaluation of thermal insulation properties consists in determining the boundary conditions of the frame and sash temperature from the interior and exterior. Additionally, the temperature of the window surroundings was measured, at the building envelope. The boundary conditions were measured by different sensors to ensure an accurate setting of the thermographic camera. Based on the values determined, the method calculates the heat transfer coefficient and the temperature factor of the internal surface. Then, the thermal insulation properties of integrated windows can be determined and compared. The priority of this measurement was a basic comparison of thermal insulation properties of two different types of windows located in a log house. This measurement will serve as the basis for a comparison of thermal insulation properties of the same types of windows in different log houses located in regions with different weather conditions. After a comprehensive comparison, based on the results, the right type of window can be recommended with respect to the location of the log house in question.U radu je opisana metoda određivanja i procjene svojstava toplinske izolacije različitih tipova prozora od borovine. Metoda je primijenjena za ispitivanje svojstava jednostrukoga i dvostrukog prozora postavljenih na drvenoj kući u Češkoj Republici. Oba se prozora nalaze na istoj prostoriji. Metoda procjene svojstava toplinske izolacije sastoji se od određivanje graničnih uvjeta prozora i doprozornika s unutarnje i vanjske strane. Usto, izmjerena je temperatura oko prozora u ovojnici kuće. Granični su uvjeti izmjereni različitim senzorima kako bi se osigurala točna postavka termografske kamere. Na temelju utvrđenih vrijednosti uz pomoć spomenute metode izračuna se koeficijent prolaska topline i toplinski faktor unutarnje površine. Nakon toga se mogu odrediti i usporediti svojstva toplinske izolacije ugrađenih prozora. Prioritet ovog mjerenja bila je usporedba svojstava toplinske izolacije dvaju različitih tipova prozora na drvenoj kući. Provedeno će mjerenje poslužiti kao osnova za usporedbu svojstava toplinske izolacije istih tipova prozora na različitim drvenim kućama koje se nalaze na lokacijama s različitim vremenskim uvjetima. Nakon složene usporedbe na temelju rezultata može se preporučiti odgovarajući tip prozora s obzirom na lokaciju drvene kuće

Renal denervation decreases effective refractory period but not inducibility of ventricular fibrillation in a healthy porcine biomodel: a case control study

BACKGROUND: Ventricular arrhythmias play an important role in cardiovascular mortality especially in patients with impaired cardiac and autonomic function. The aim of this experimental study was to determine, if renal denervation (RDN) could decrease the inducibility of ventricular fibrillation (VF) in a healthy porcine biomodel. METHODS: Controlled electrophysiological study was performed in 6 biomodels 40 days after RDN (RDN group) and in 6 healthy animals (control group). The inducibility of VF was tested by programmed ventricular stimulation from the apex of right ventricle (8 basal stimuli coupled with up to 4 extrastimuli) always three times in each biomodel using peripheral extracorporeal oxygenation for hemodynamic support. Further, basal heart rate (HR), PQ and QT intervals and effective refractory period of ventricles (ERP) were measured. Technical success of RDN was evaluated by histological examination. RESULTS: According to histological findings, RDN procedure was successfully performed in all biomodels. Comparing the groups, basal HR was lower in RDN group: 79 (IQR 58; 88) vs. 93 (72; 95) beats per minute (p = 0.003); PQ interval was longer in RDN group: 145 (133; 153) vs. 115 (113; 120) ms (p < 0.0001) and QTc intervals were comparable: 402 (382; 422) ms in RDN vs. 386 (356; 437) ms in control group (p = 0.1). ERP was prolonged significantly in RDN group: 159 (150; 169) vs. 140 (133; 150) ms (p = 0.001), but VF inducibility was the same (18/18 vs. 18/18 attempts). CONCLUSIONS: RDN decreased the influence of sympathetic nerve system on the heart conduction system in healthy porcine biomodel. However, the electrophysiological study was not associated with a decrease of VF inducibility after RDN

Epidemiology and long-term survival of pulmonary arterial hypertension in the Czech Republic: a retrospective analysis of a nationwide registry

BACKGROUND: Pulmonary arterial hypertension (PAH) is a severe and progressive disease characterized by increased pulmonary vascular resistance, ultimately leading to right heart failure and death. Epidemiological data from national registries are growing worldwide, but are still unavailable in Eastern Europe. METHODS: A PAH registry was initiated in January 2007 using a nationwide network of echocardiographic centers and four diagnostic centers that specialize in PAH. All patients aged above 18 years, diagnosed with PAH and monitored between January 2000 and December 2007 were included. Patients diagnosed with PAH between January and December 2007 were classified as incident. The survival analyses were performed up to the end of 2010. Prognostic factors at the time of diagnosis were identified using uni- and multivariable Cox proportional hazard models. RESULTS: Overall, 191 patients were included (100 prevalent cases, 91 incident cases). Patients were predominantly female (n = 125) and had a mean age of 51.9 ± 16.9 years. Incident patients were significantly older at the time of diagnosis than prevalent patients (p < 0.001). Most patients (60.7%) had idiopathic PAH; 20.4% had PAH associated with congenital heart disease and 11.4% had PAH associated with connective tissue disease. Estimates of prevalence and incidence of PAH in adults were 22.4 cases per million and 10.7 cases per million per year, respectively. The 1-, 2- and 3-year survival rates in the incident PAH cohort were 89% (95% confidence intervals [CI] 83–95%), 78% (95% CI 70–87%) and 74% (95% CI 65–83%), respectively. Lower survival rates were significantly associated with higher age (hazard ratio [HR] 6.6 95% CI 1.4–30.9) and lower creatinine clearance (HR 3.3 95% CI 1.1–9.7). CONCLUSION: This is the first study in Eastern Europe to describe the prevalence, incidence and survival of patients with PAH from a national representative registry. This registry from the Czech Republic highlights that diagnosis of PAH is frequently made late in the disease continuum when patients have significant functional impairment

Solution to suburban transport Prague / central Bohemia

Práce řeší možné varianty umístění Masarykova nádraží, vedení linek příměstské dopravy v centální oblasti železničního uzlu Praha. Návaznost příměstské dopravy na dálkovou a možné rozšiřování příměstské železniční dopravy v oblasti pražského regionu.Katedra technologie a řízení dopravyDokončená práce s úspěšnou obhajobo

The smart card as carrier of integrated services in the university environment

Tato bakalářská práce se zabývá problematikou čipových karet v obecné rovině v univerzitním prostředí. Obecně popisuje a rozděluje čipové karty dle jejich komunikačních možností, dále se zabývá bezpečností dat a legislativou s cílem popsat prostřednictvím kritérií a navrhnout čipovou kartu v prostředí univerzity.This bachelor work deals with problems of smart cards in general plane at the university environment. It usually describes and divides smart cards according to their communication possibilities further it is interested in protection of data and legislation with a view to describe through criteria and propose smart card at university environment.Ústav systémového inženýrství a informatikyDokončená práce s úspěšnou obhajobo