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Optimization of production process through the application of the method of KAIZEN
Behan, Václav ; Fejfarová, Martina (advisor) ; Jiří, Jiří (referee)
The main topic of this thesis is an optimization of chosen manufacturing process using the application of selected method. The theoretical part describes in detail components and issues that are related to the chosen Kaizen-method, whose implementation in the manufacturing process can have by proper grasp a significant impact on objectives achieving. Use of methods that bring manufacturing companies great potential for streamlining and optimization of manufacturing processes is nowadays essential for preserving the competitiveness. In the practical part the first analysis of the current selected process was made. In this analysis several serious deficiencies was found. It was subsequently suggested an optimal solution, that uses the selected method. For proposed solution were simultaneously necessary investment defined, without which no process can be changed. After consultation with the management of the company was this change approved and it was subsequently successfully applyed in the production process.
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Audit in system of firm quality
Benk, Petr ; Kala, Štěpán (advisor) ; Jaromír, Jaromír (referee)
The thesis titled Audit in system of firm quality is focused on acquiring basic knowledge and skills associated with the term audit, its definition, defining the principle and necessity in the context of integration into the company's organizational structure. It presents requirements on the auditor itself, the working methods used in the audit activities and claims on the processing of the audit report. Important is also familiarization with the actual quality management system, which is clearly becoming an important tool to obtain a competitive advantage on the market. Due to disagreement with the publication of the monitored entity's trade name, in terms of this thesis the author described the organization as the company D. By analysis of outcomes related to the implementation of internal audit quality management system were identified possible bottlenecks of the auditees. During the reporting period was found that approx. 30% of nonconformities is still repeating from previous audits, it clearly testifies to inefficient solution of measures for eliminating identified nonconformities. Based on these findings was performed an analysis of the causes and effects associated with the occurrence of recurrent nonconformities, where the most important causes are team identified. These causes in terms of importance were identified by Pareto analysis regarding to the process itself (the missing steps, identifying the beginning and the end, the distribution of nonconformities according to the importance, etc.). Subsequently was performed drafting of more efficient process model suitable for effective implementation of audits in system of firm quality. In a use of change management in the organization was the new process model put into practice, including performance of assessment, approval, implementation, verification and validation tasks. The benefit of this thesis is mainly the possible application of the modified process model of audit in system of firm quality, which allows rapid optimization of business processes and procedures.
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Analysis and optimization of maintenance processes in a selected organization
Kurucz, Petra ; Hladík, Tomáš (advisor) ; Legát, Václav (referee)
This thesis focuses on the implementation of maintenance processes and their subsequent optimization in healthcare facility. Based on internal observation, interviews with executives on sections and analysis of the current situation were designed optimal changes to improve the situation in the regional healthcare facility.
Review of literature is a literature that relates to the theme of work, detailing the implementation of maintenance processes and their impacts on the effective action of the company. The analysis describes a specific company and the current situation in the field of maintenance processes, based on which, are proposed the recommendations and measures for the effective setting of these processes.
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Optimizing of weed control in carrot anf lettuce
Šuk, Jaromír ; Jursík, Miroslav (advisor) ; Kolářová, Michaela (referee)
The main aim of this work was to made literary review about possibilities of weed control in carrot and lettuce. The experimental part of this work was focused on optimization of herbicides weed control in lettuce and carrot. Small plot field trials were carried in 2015.
Literary review was focused on the summarizing of information about the particular vegetables. Futhermore, the available literature about weed control in these vegetables were complied, specialy with a focus on mechanical and chemical (herbicide) control. The last section of review is dedicated to optimizing use of herbicides that are not registered in tested vegetables.
In lettuce, herbicidal efficacy was assessed on Chenopodium album, Amaranthus retroflexus, Mercurialis annua and Echinochloa crus-gali and selectivity of herbicides to crop. In carrot, herbicidal efficacy was assessed on Amaranthus retroflexus, Solanum physalifolium, Chenopodium album, Echinochloa crus-gali and Mercurialis annua and selectivity of herbicides to crop.
Lettuce was treated by herbicide combinations with active ingredients: befor planting or postemergence pendimethalin, postemergence propyzamide, postemergence phenmediphan, postemergence dimethenamid and postemergence pethoxamide. Carrot was treated by herbicide combinations with active ingredients: preemergence aclonifen, preemergence clomazone, preemergence dimethenamid, preemergence pendimethalin, postemergence linuron and postemergence metribuzin.
In lettuce, were on the plots, where were used pendimethalin and dimethenamid. In carrot, best weed control were on the plots, where were used aclonifen, clomazone and dimethenamid. However, after application these herbicides, highest phytotoxicity was found. The lowest selectivity to both tested vegetables showed dimethenamid.
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VoIP Performance Management and Optimization
Holubovský, Petr ; Tyrychtr, Jan (advisor) ; David, David (referee)
The diploma thesis focuses on the VoIP technology optimization and performance management. The diploma thesis presents the theoretical basis of IP telephony and measurement of its quality. The thesis primarily deals with practical measurements of VoIP calls quality. Asterisk softswitch, various types of IP phones and simulated degradation of signal using Linux software router are used for measurements. Procedural diagram of VoIP technology real deployment is designed based on these measurements.
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Internal audit and its importance in optimizing production space
Ercoliová, Lucie ; Pilař, Ladislav (advisor) ; Rojík, Stanislav (referee)
The essence of this work is to evaluate the current state of production and quality management and environmental management in a manufacturing company Aroma Praha, Inc., head quarters Židovice. Used any the methods of auditing processes to evaluace the current situation and suggest possibilities how to improve the current state of quality management and environmental management. Based on the
findings will be drawn up its own proposals for solutions to stream line the process of quality management and environmental management in the enterprise.
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Optimization and application of in vitro techniques in selected members of the family Brassicaceae
Hilgert-Delgado, Alois Antonín ; Fernández Cusimamani, Eloy (advisor) ; Jana, Jana (referee)
This thesis is focused on the application and optimization of biotechnological methods within the family Brassicaceae. Most of this thesis is focused specifically the genus Brassica. The main objective of this dissertation thesis was to optimize and apply selected biotechnological methods in the resynthesis of oilseed rape (B. napus) from its baseline species (B. oleracea, CC and B. rapa, AA) and subsequently create valuable genetic plant materials.
The optimized procedure implemented in my work have exhibited better results of hybrid production (resynthesis) than in similar published experiments and provides a simplified and less laborious method via simple ovule culture and early hybrid verification.
The next accomplished step was to work with a wider range of materials using a broader source of different and contrasting genotypes from Brassica rapa (spring and winter oilseed and vegetable turnips) and B. oleracea (green and purple curly kales and cabbages) for new combinations and wider genetic diversity.
It was concluded that the optimized ovule culture protocol with early verification, developed in the framework of this thesis, is satisfactorily sufficient enough to be applicable in breeding programmes, aimed at diversity expansion of winter oilseed rape gene pool, as the resynthesized embryos were derived in most combinations.
New resynthesized verified lines were colchicine treated in order to obtain diploid regenerants and the fertile plants were self-pollinized and crossed with elite oilseed rape lines for further research and breeding.
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Optimization of microclimate parameters in dairy farms, while reducing the energy consumption of selected technological systems
Češpiva, Miroslav ; Pecen, Josef (advisor) ; Ján, Ján (referee)
Thesis is focused on the measurement and evaluation of microclimate parameters in barns for dairy farming and the determination of the energy consumptions of selected technologies in these barns. The aim of this work was to design and eventually to implement adjustments in order to improve the parameters of cowshed microclimate and reducing the energy consumption of selected technologies in depends on results of the measurements. Three structurally different cowsheds with different slurry clearing technologies were selected for monitoring. I focused on the measurement of temperature and relative humidity in relation to temperature- humidity index and its impact on heat stress on dairy cows. I measured airflow in the cowsheds and I determinate concentrations and emissions of ammonia and methane in the cowsheds in different seasons. I monitored light intensity in the cowsheds and I determined the dependence of building solutions on the use of outdoor light to illuminate the interior of the barns. The energy consumption of the lighting system depending on the season and the consumption of additional fans on the air temperature were studied.
On the bases of results of the experimental part I designed and implemented lighting system, controlled by light intensity in a cowshed and energy-saving ventilation in the cowshed - type K105. I suggested a system of continuously monitoring of climatic parameters in the cowshed with immediate calculation of temperature- humidity index.
Measurements have shown the dependence of gases concentrations on the way of slurry clearing technologies. The building solutions of cowsheds and type of ventilation proved a significant influence on the temperature- humidity index during the summer.
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Optimizing controller settings in terms of quality of work gasoline engines E85
Kotek, Tomáš ; Pexa, Martin (advisor) ; Malaťák, Jan (referee)
The work deals with optimizing the operation of spark ignition internal combustion engine on fuel E85. The theoretical part is devoted to the issue of biofuels in terms of production, distribution and use in internal combustion engines.
The experimental part is devoted to the design and verification of the additional control unit (ADU) which solves the optimisation of operation unmodified engine on E85.
The first part of the experiment is dedicated to the design and construction of ADU with aim to faultless operation of the engine on E85.
The second part of the experiment was devoted to optimisation of engine operation in terms of fuel consumption using dynamic changes of the injectors opening time. Part of the experiments was an evaluation of emissions production and impact on the performance parameters of the engine.
The final part of the experiment evaluates the achieved results at the various settings strategy of ADU and compares them with results during engine operation on prescribed fuel N95.
By the dynamic change of the injector opening time were reached decrease in fuel consumption by about 5%, reduction in CO production by around 70%, approximately fourfold increase in the production of NOx emissions and about 50% decrease in production of particulate matters.
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Optimization of Transportation Routes between a Chosen Company and Its Clients
Ďurďa, Jakub ; Kučera, Petr (advisor) ; Petr, Petr (referee)
This thesis deals with the adjustment of the current distribution routes of the company CHEMIE STAR Ltd. and at the same time with a creating of new distribution routes with the aim of economic savings, which is achieved through a reduction in the length of routes and the time required for the routes. In the introductory theoretical part of the work the logistics is defined, its functions, importance and influence on the enterprise. And this part also provides an overview of methods dealing with the traveling salesman problem. In the practical part the optimization of the input data into the model at the current routes is performed, where there is always selected the cheapest route between the two nodes using unit costs. Subsequently, the methods solving the traveling salesman problem are applied, namely the method of the Nearest neighbor, Vogel approximation method and Clark-Wright method. The layout of the new routes, which is limited in capacity by car and the purchasers requirements, is done using Mayer method and Sweep algorithm and with the subsequent application of the method solving the problem of traveling salesman problem. In the chapter evaluation of the results and recommendation all obtained outcomes are compared and interpreted.
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