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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

變動樣本大小的無母數平均值管制圖之研究 / Study of nonparametric mean control chart with variable sample sizes

周遊宇, Zhou, Youyu Unknown Date (has links)
自舒華特發明以管制圖監測製程以來,管制圖在工程的應用日趨重要。在特殊工程中,一個高效的管制圖方法尤為重要。基於此項事實,在文獻中各式各樣的管制圖層出不窮且技術日益完善。但傳統管制圖往往受制于常態分佈,因此在無母數管制圖研究方向仍有大量工作值得探討。於是本文在母體分佈未知情況下,推廣Yang (2015)的無母數平均值管制圖方法建立變動樣本指数加权移动平均管制圖,VSS EWMA-np control chart。新的管制圖將變動樣本大小(VSS)和指數加權移動平均(EWMA)方法結合建立一種新的管制圖方法,並用這種新型管制圖監測未知分佈母體的平均值是否發生變動。而為了監測平均數是否發生變化,也為了減少抽樣損失,本文評估管制圖監測效力的指標為管制圖偵測出異常訊息所需抽樣的樣本數期望值(EN)、平均連串長度(ARL)和平均觀測值總數(ANOS)。從本文的比較結果看出新的變動樣本指數加權移動平均管制圖擁有更好的失控偵測力。 / Since Shewhart invention control chart monitor the process, control charts are increasingly important in engineering applications. In special projects, an efficient control chart is especially important. Based on this fact, the various kinds of control charts in the literature are not poor and the technology is improving. However, traditional control charts are often subject to normal distribution, so there is still a lot of work to be discussed in the direction of the study of non-parametric control charts. So in this paper under unknown distribution in the matrix, Yang (2015) established on the basis of the theory of a non-parametric method of control chart - Exponentially Weighted Moving Average Control Chart with Variable Sampling Sizes (VSS EWMA - np control chart). New control chart will change the sample size (VSS) and exponential weighted moving average (EWMA) method to establish a new control chart, and use new control chart for monitoring the mean of unknown distribution matrix is changed. And whether to monitor the average changes in order to reduce the loss of sampling, this paper mainly evaluate control chart for monitoring the effectiveness of the statistics for the expected value of the sample size (EN), the average run length (ARL) and the average number of observations to signal (ANOS). From the comparison shown in this paper, the new control chart has better detection.
82

Detailní projektování technologického pracoviště ve firmě ADOZ, s.r.o. / Detailed project proposal of a technological workplace in the company ADOZ, Ltd

Klemsa, David January 2018 (has links)
This master's thesis focuses on the manufacturing system of the company ADOZ, ltd. It describes some systems of production management that leaders of the company want to implement, the company itself, the condition of the default manufacturing system, its deficiencies and motives of the company that led leaders to decide to move to a new space. One section of the thesis describes the space of the new building into which the company wants to move its manufacturing system. The thesis also deals with the calculation of capacity, the quantity of staff, and the size of the areas of the new manufacturing system that should be placed into the new building. The workplaces of the manufacturing system have been divided into various type groups. The relationships between these groups have been analysed, whereupon accurate plans of the placement of workplaces of the new manufacturing system in the manufacturing space of the new building have been created. On the basis of two different attitudes towards calculation of capacity, two different proposals have been created, and a plan of workplace placement has been made individually for each proposal. Both proposals have been compared from a financial viewpoint.
83

Určování velikosti plochy a rozměrů vybraných objektů v obraze / Determination of an area and proportions of selected objects in a picture

Mittner, Ondřej January 2010 (has links)
The master’s thesis describes hardware opto-electronic instruments for contactless measurement of surfaces. It concentrates on instruments used for opto-electrical transformation of a taking scene and software processing of digital pictures. It presents selected methods of pre-processing, segmenting and following final modifications of these pictures. Then it deals with measuring of areas of surfaces and sizes of selected objects in these pictures and conversion of results from pixels to SI system of units. Possible divergences of measuring are described as well. A flow chart of a program for automatic and manual measuring of surfaces and sizes of objects in a picture, which is commented in detail, is a part of the thesis. The main product of this thesis is application Merovo, which provides measuring of an area and proportions of included objects. This application is analysed and described in detail in this thesis.
84

Metaanalýza: Motivace uživatelů používat mobilní aplikace sloužící k seznamování / Meta-analysis: User motivations to use mobile dating apps

Petrová, Angelika Nelly January 2019 (has links)
This diploma thesis focuses on the motivations of users to create an account within the location- based mobile dating applications. The work is processed by statistical analysis of already published studies dealing with the same or similar topics. The main target of this paper is to calculate the effect size of individual motives in relation to the sex of the respondents. The diploma thesis starts with description of the history of online dating, specific mobile applications included in my meta-analysis, user behavior in individual stages of using these applications (profile settings, selection of other profiles, communication and its development in time), followed by the methodological part where the meta-analysis itself is desribed, the process of its creation and its weak and strong aspects. In the following chapter the results of the meta-analysis and their interpretation are presented as well as self-reflection of this paper along the recommendations for future researches. Analysis helped to reveal the differences between the sexes and also helped to synthesize the acquired studies dealing with this topis. The most notable influence of gender can be seen in the motivation of casual sex, to a lesser extent in the motivation to seek love, friends, the use of the application because of the ease...

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