|
|
Statistical analysis of production
Kovaříková, Ludmila ; Grepl, Mojmír (referee) ; Maroš, Bohumil (advisor)
The aim of Master's thesis is to apply statistical methods in production process. The assignment of the thesis is to describe and evaluate pressing process which is the part of posistor production. The first theoretical part contains introduction to the mathematical statistics, verifying assumptions about the data, describing the regression analysis, the analysis of variance and the part of the design of experiment. The second practical part is focused on design, performing and interpreting of experiments. The thesis is developed according to requirements of company EPCOS s.r.o. Šumperk. Statistical program MINITAB Rlease 14, which is supported by company, was used for all computations.
|
|
|
Effectiveness of DOE
Pfefferová, Alena ; Bednář, Josef (referee) ; Maroš, Bohumil (advisor)
Diplomová práce se zabývá plánováním a analýzou experimentu. Je zde zkoumán vliv počtu centrálních bodů v plánu experimentu na nalezení významných faktorů procesu. Pro určení tohoto vlivu je použita metoda Monte Carlo, pomocí které hledáme míru nalezení významných faktorů procesu. Simulace experimentu je vytvořena v programu MATLAB, kde se především využívá Statistics toolbox pro generování náhodných čísel. V závěru je zhodnoceno a graficky ukázáno, jak je určení významnosti faktoru procesu závislé na počtu uvažovaných faktorů experimentu a na počtu měření v centrálním bodě.
|
|
|
Subjective assessment of disturbing noise from gramophone records
Vlašín, Martin ; Martinásek, Zdeněk (referee) ; Rášo, Ondřej (advisor)
The bachelor thesis is focused on distortion that occurs by playing gramophone records. Due to functional principle of turntable and due to origin of individual distortion, which may occur while playing records, were selected two most significant and most frequently occurring distortion. For these distortion is studied their effect on subjective assessment of audio record. From data obtained from participants in the listening test was performed statistical analysis, also test of reliability and detection of any possible errors occurring in the assessments of individual listeners. The conclusions from results confirmed differences between two distortions and also between different audio samples on the subjective perception of the quality of audio experience for listener.
|
|
|
Novel cancer biomarkers derived from quantitative phase imaging of biopsy cells
Plišková, Diana ; Týč, Matěj (referee) ; Kolářová, Jana (advisor)
The main objective of this work is the development of novel cancer biomarkers usable in personalized treatments. To understand why this issue is important, a brief description of cancer, including statistical results over the past years, is provided. The work also describes individual methods of light microscopy that can be used in cell analysis and subsequent image processing consisting of segmentation, tracking, feature extraction and classification. In this work, the main cell features, such as cell motility and shape, are presented. These features can be potential biomarkers in the treatment of cancer.
|
|
|
Statistical analysis of real manufacturing process data
Kučerová, Barbora ; Mrázková, Eva (referee) ; Bednář, Josef (advisor)
Tématem této diplomové práce je statistická regulace výrobního procesu. Cílem bylo analyzovat data z reálného technologického procesu revolverového vstřikovacího lisu. Analýza byla provedena za užití statistického testování hypotéz, analýzy rozptylu, obecného lineárního modelu a analýzy způsobilosti procesu. Analýza dat byla provedena ve statistickém softwaru Minitab 16.
|
|
|
Effective operation of up-to-date waste-to-energy units
Cafourková, Tereza ; Pavlas, Martin (referee) ; Touš, Michal (advisor)
The main content of this thesis is a suggestion of computing system for efficient energy manufacture. The introduction devotes to description of up-to-date waste-to-energy units (EVO), it concentrates on Incinerator of municipal wastes of TERMIZO a.s., specifically. In the main body of this work is the data analysis of factory journal that has been implemented, results have been used as mathematical model output value. These activities are necessary for computing system suggestion. Resulting optimization of batch wasting plan with maximum economic effect for entrepreneur is the main output of this work. Conclusion consists of environmental and economic evaluation of operation of up-to-date waste-to-energy units and offers another optimization posibility.
|
|
|
Effects of the addition of distillates in white sausage production on the sensory quality of the product
Horňan, Samuel ; Kovalčík, Adriána (referee) ; Mikulíková, Renata (advisor)
This diploma thesis deals with the production and sensory analysis of white sausages to which different types of distillates have been added. The aim of this thesis is to observe the effect of the added distillates on the overall sensory quality of the sausages. The theoretical part describes meat and meat products, meat and meat product legislation, characteristics of sausages and the technological process of white sausage production. Furthermore, it characterises alcoholic beverages, the legislation of spirits and distillates, and it includes the characteristics and description of raw materials for the production of distillates as well as substances occurring in distillates. In addition, it illustrates the basic principles of sensory perception and sensory analysis. The experimental part deals with the production of white sausages to which 5 selected types of distillates have been added. The result consisted of a total of 10 sausage samples produced in 2 batches, each batch varying in the volume of the added distillate. Together with the samples there was also produced a standard that contained no added distillate. These sausage samples were then further evaluated sensorially using general discrimination tests, a sensory profile evaluation method and the dynamic method Temporal Dominance of Sensations (TDS). Besides the sensory analysis all samples underwent gas chromatography that determines the percentage of their fatty acids content. The data obtained from the sensory analysis were subjected to the general descriptive statistics and graphically evaluated. The evaluation of the difference between the samples and the standard was performed statistically using the Thurston model and hypothesis tests. Analysis of variance (ANOVA) revealed the existence of statistically significant differences in some of the measured parameters, between the samples with lower and higher added volume of distillate. Correlations between the measured parameters were identified by covariance. Differences and similarities of the individual samples regarding their parameters were evaluated by Principal Component Analysis (PCA). Graphical analysis of the results from TDS described and clarified in more detail the variation of dominant flavours in the samples over time, which were not detected in the sensory profile evaluation.
|
|
|
Application of Management Control System in a Company
Zemánek, Zdeněk ; Vokál, Milan (referee) ; Žižlavský, Ondřej (advisor)
The aim of this thesis is to evaluate management control system in a company and pro-pose measures for better use of management control system as a subsystem of manage-ment of the company supporting the achievement of business objectives of the owners in the changing market environment. Thesis consists three main parts. The first theoretical part contains information about management control system. Analysis of the current state of management control system describes state of the management control system in a company and in the last section are suggestions for possible improvements of man-agement control system.
|
|
|
Key factors of financing small companies in early stages within digital economy services in Visegrad 4 member countries
Amankwaa-Opoku, Walter
This thesis focuses on achieving the objectives of identifying the key factors of efficient financing of small companies active in the digital economy services settled in Visegrad 4 member countries within their early life stage phases. These Visegrad 4 member countries include the Czech Republic, Slovakia, Poland, and Hungary. Many works of literature were reviewed in achieving this objective, these pieces of literature include literature on small companies in Visegrad 4-member countries, financing of small companies in Visegrad 4-member countries, literature on Altman Z-score and other bankruptcy models, and literature on non-financial factors that influence SMEs bankruptcy. The thesis was both qualitative and quantitative in nature and analyses were done on the financial statements and non-financial factors of sampled SMEs in the 4 Visegrad countries. Various analyses were undertaken to arrive at this objective, these analyses include analyzing the descriptive statistics, determining the Correlation Matrix, running the ANOVA test to determine the significance level of the key factors in determining the performance of these SMEs and consequently influencing their financing level and also analyzing selected non-financial factors readily available.
|
|
|
Effects of the addition of distillates in white sausage production on the sensory quality of the product
Horňan, Samuel ; Kovalčík, Adriána (referee) ; Mikulíková, Renata (advisor)
This diploma thesis deals with the production and sensory analysis of white sausages to which different types of distillates have been added. The aim of this thesis is to observe the effect of the added distillates on the overall sensory quality of the sausages. The theoretical part describes meat and meat products, meat and meat product legislation, characteristics of sausages and the technological process of white sausage production. Furthermore, it characterises alcoholic beverages, the legislation of spirits and distillates, and it includes the characteristics and description of raw materials for the production of distillates as well as substances occurring in distillates. In addition, it illustrates the basic principles of sensory perception and sensory analysis. The experimental part deals with the production of white sausages to which 5 selected types of distillates have been added. The result consisted of a total of 10 sausage samples produced in 2 batches, each batch varying in the volume of the added distillate. Together with the samples there was also produced a standard that contained no added distillate. These sausage samples were then further evaluated sensorially using general discrimination tests, a sensory profile evaluation method and the dynamic method Temporal Dominance of Sensations (TDS). Besides the sensory analysis all samples underwent gas chromatography that determines the percentage of their fatty acids content. The data obtained from the sensory analysis were subjected to the general descriptive statistics and graphically evaluated. The evaluation of the difference between the samples and the standard was performed statistically using the Thurston model and hypothesis tests. Analysis of variance (ANOVA) revealed the existence of statistically significant differences in some of the measured parameters, between the samples with lower and higher added volume of distillate. Correlations between the measured parameters were identified by covariance. Differences and similarities of the individual samples regarding their parameters were evaluated by Principal Component Analysis (PCA). Graphical analysis of the results from TDS described and clarified in more detail the variation of dominant flavours in the samples over time, which were not detected in the sensory profile evaluation.
|
guest ::
