1,074 research outputs found
Assessing the Financial Efficiency of the Company AGROMORAVIA, a.s. Using Time Series Analysis
Tato bakalářská práce se zabývá posouzení finanční výkonnosti podniku AGROMORAVIA, a.s. pomocí časových řad. Nejprve bude provedena finanční analýza, jejíž vstupní data jsou účetní výkazy podniku a následně statistická analýza vybraných ekonomických ukazatelů. Výsledkem finanční analýzy je současné zhodnocení finanční situace podniku. Výsledkem statistické analýzy je predikce jejich budoucího vývoje, ze kterého čerpá cenné informace, které slouží k doporučeným návrhům na zlepšení ekonomické situace firmy. První část práce je věnována teoretickým poznatkům z oblasti finanční analýzy a statistické analýzy a vysvětlení používaných metod a postupů. V druhé části je potom provedena finanční analýza a statistická analýza pomocí časových řad.This bachelor´s thesis is dealing with financial performance of a company called AGROMORAVIA, a.s. using time series. First, financial analysis will be performed, the input data are the financial statements of enterprise and statistical analysis of selected economic indicators. The result of financial analysis is to evaluate the current financial situation. The result of statistical analysis is the prediction of their future development, which draws from valuable information, which is the recommended proposals for improving the economic situation of the company. The first part is devoted to theoretical knowledge in the field of financial analysis and statistical analysis and explanation of used methods and procedures. In the second part is performed a financial analysis and a statistical analysis of company using time series analysis.
A Tool for Testing User Interface of Web-based Applications
Cílem této bakalářské práce je tvorba komplexního nástroje pro testování uživatelského rozhraní
webových aplikací. Jeho forma bude odpovídat podobě doplňku pro prohlížeč Google Chrome.
Testovací nástroje, kterých je možno používat nám dovolují otestovat v prostředí webu většinu
GUI aplikací, avšak v dnešní době je mnoho komplexních webových aplikací vytvořeno v prvku
HTML5 Canvas. Právě ten tvoří aspekt, jež nám dostupné nástroje nedovolují otestovat. Tato
skutečnost je primárním motivem pro vytvoření nového nástroje, s jehož pomocí lze tyto aplikace
otestovat.The target of this bachelor thesis is to create a complex tool for testing user interface of web
applications. This tool will be available as a Google Chrome add-on. Available testing tools
allow us in web test most GUI applications, but nowadays many complex web applications are
created in HTML5 Canvas. It is this aspect of our available tools that we do not allow to test.
This is the main motive for creating a new tool to test these applications.460 - Katedra informatikyvelmi dobř
Individual Professional Practice in the Company
Import 03/11/2016Cílem této bakalářské práce je popsat úkoly a jejich řešení, se kterými jsem setkal v IT centru společnosti Stora Enso nacházející se v Ostravě, ve kterém jsem absolvoval odbornou praxi. Během této doby jsem plnil celou řadu úkolů v~oblasti reportingu a analýzy dat. Tato práce obsahuje popis vybrané skupiny problémů a jejich řešení, ať už teoretické nebo i praktické. Dále jsou zde uvedeny informace o získaných znalostech a zkušenostech.The main purpose of this bachelor thesis is to describe tasks and their solution, which I was carrying out in IT department of company Stora Enso located in Ostrava, where I was working as Intern. My tasks were mainly connected to reporting and analysis of large amount of data. This thesis is describing some of those tasks and their solution from perspective of theory and practice. Furthermore the gained experience and knowledge are described in detail.460 - Katedra informatikyvýborn
Wheel–rail contact: experimental study of the creep forces–creepage relationships
The wheel–rail contact problem plays an important role in the simulation methods used to solve railway dynamics problems. As a consequence, many different mathematical models have been developed to calculate wheel–rail contact forces. However, most of them tackle this problem purely from a theoretical point of view and need to be experimentally validated. Such validation could also reveal the influence of certain parameters not taken into account in the mathematical developments. This paper presents the steps followed in building a scaled test-bench to experimentally characterise the wheel–rail contact problem. The results of the longitudinal contact force as a function of the longitudinal creepage are obtained and the divergences with respect to Kalker's simplified theory are analysed. The influence of lateral creepage, angular velocity and certain contaminants such as cutting fluid or high positive friction modifier is also discussed
Základní model pádu regulačního orgánu v jaderných reaktorech
This paper is focused on the modelling and dynamic analysis of a nonlinear system representing
a control assembly of the VVER 440/V213 nuclear reactor. A simple rigid body model intended for
basic dynamic analyses is introduced. It contains the influences of the pressurized water and mainly
the e ects of possible control assembly contacts with guiding tubes inside the reactor. Another approach based on a complex multibody model is further described and the suitability of both modelling
approaches is discussed.Článek je zaměřen na modelování a dynamickou analýzu nelineárního systému, který reprezentuje
regulační orgán jaderného reaktoru VVER 440/V213. Je představen jednoduchý model tuhého
tělesa určený pro základní dynamické analýzy. Model zahrnuje vliv stlačené vody a zejména vliv
možných kontaktů regulačního orgánu s vodicími trubkami uvnitř reaktoru. Dále je popsán jiný přístup
k modelování založený na komplexním multibody modelu a je diskutována vhodnost obou přístupů k
modelování
ANU Radiocarbon Dating Laboratory, General Projects
The laboratory is playing an important role in a number of research projects. Indeed, there is a continuing and increasing need for laboratory generated research involving
improvements in dating techniques, analysis, interpretation and reporting of results; parameters fundamental to the validity of dating such as environmental contamination and selection of applicable dating standards. Equally important is participation on a cooperative basis in research generated
by other departments and institutions, often involving field work
Creep curve measurement to support wear and adhesion modelling, using a continuously variable creep twin disc machine
Predictive modelling of wear and adhesion at rolling-sliding contacts such as a railway rail and wheel depends on understanding the relationship between slip and shear force at the contact surface, i.e. the creep verses force curve. This paper describes a new approach to creep curve measurement using a twin disc machine running with a continuous programmed variation of creep, enabling an entire creep curve to be defined in a single experiment. The work focuses on very low levels of creep, ranging from zero to 1%, and shows clear correlation between the creep curve gradient and the full slip friction coefficient for dry and lubricated contacts.
Comparison of data generated using the new approach with that generated using multiple tests each at a single creep level shows good agreement. Comparison is also made between the twin disc data and results for full size three dimensional rail-wheel contacts to examine how two and three dimensional contact adhesion data are related. The data generated has application in wear and rolling contact fatigue modelling, but the original motivation for the research was generation of creep curves to support prediction of low adhesion conditions at the rail-wheel interface based upon monitored running conditions prior to brake application. The range of contact conditions investigated includes those experienced in service and during driver training, with the correlation found between creep curve gradient (measurable prior to braking) and full slip friction coefficient (not measurable until brakes are applied) representing a key finding
Polymer reptation and nucleosome repositioning
We consider how beads can diffuse along a chain that wraps them, without
becoming displaced from the chain; our proposed mechanism is analogous to the
reptation of "stored length" in more familiar situations of polymer dynamics.
The problem arises in the case of globular aggregates of proteins (histones)
that are wound by DNA in the chromosomes of plants and animals; these beads
(nucleosomes) are multiply wrapped and yet are able to reposition themselves
over long distances, while remaining bound by the DNA chain.Comment: 9 pages, including 2 figures, to be published in Phys. Rev. Let
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