Preparation of glass fiber/polyester composites

Tato bakalářská práce se zabývá studiem závislosti mechanických vlastností rozhraní vlákno-matrice v kompozitu na povrchových úpravách vláknové výztuže. Jako výztuž byla použita skleněná vlákna a matricí byla polyesterová pryskyřice. Vzorek kompozitu pro mechanické testy tvořilo válcové polymerní tělísko umístěné na svazku skleněných vláken. Pro posouzení adheze na rozhranní vlákno-matrice byla využita tahová zkouška na univerzálním zkušebním zařízení (Zwick). Pro výrobu vzorku kompozitu byla použita vlákna bez povrchové úpravy a vlákna s komerční povrchovou úpravou.The bachelor thesis is aimed at an influence of surface modifications of fibrous reinforcements on mechanical properties at the fiber-matrix interface in fiber reinforced composites. Glass fibers were used as reinforcements and polyester resin was the matrix. The sample of composite consisted of polymer matrix in a form of cylindrical body placed on a bundle of glass fibers. The tensile test using a materials testing machine (Zwick) was employed to evaluate adhesion at the fiber-matrix interface. Untreated glass fibers and fibers with commercial sizing were used for fabrication of composite samples.

The Czech Equity Market - Its Effectiveness and Macroeconomic Consequences

This paper examines features of the Czech stock market’s development from 1997 to 2003 and attempts to unveil the macroeconomic consequences of stock-price development. The analysis of the stock market’s behavior supports a cautionary stance on the hypothesis of the efficient-market theory, even in its weak form. Another finding, as regards the macroeconomic consequences of stock-price development, undermined the assumption of the positive wealth effect of rising stocks. In relation to GDP growth, the prediction power of the stock index proved rather limited. The Czech stock market can also function as an instrument of portfolio diversification, at least in relative terms, since the correlation to the Czech bond market was weak. Contrariwise, the correlation among the Czech, U.S., and European stock markets increased in time, restricting the room for portfolio diversification.behavioral finance theory, Czech equity market, effective-market theory, European integration, portfolio theory

The wine market - an empicrical examination of in-store consumer behaviour

Business success in the current highly competitive environment determines primarily the ability to understand the customer and his needs and identify the factors that influence consumer behavior. Therefore, the examination of consumer behavior and obtaining feedback on the development and state of the market as well as identifying current trends is an essential part of any successful business. Producers and traders are increasingly forced to adapt to the rapid development and changes in the market. This is especially important with food products, given the wide range of assortment, substitutability of particular groceries and strengthening competitive pressure of manufacturers and retailers. In general, consumer decision-making related to food is influenced by a number of different factors that are changing under the influence of new trends (greater emphasis on quality, country of origin etc.). Even more specific category is the wine market, which is subject to specific criteria of consumer choice, since from a consumer perspective, it is not a product of daily consumption. The world wine market is increasing; new producers as well as new groups of customers are emerging on the market. The distribution channels are becoming more diversified and wine is offered in both specialty stores and self-service outlets; hypermarkets, supermarkets and discount stores. Due to this trend the investigation of in-store consumer behavior becomes crucial. The aim of the paper is to discuss the usefulness of eye tracking based research for examining perceptions of people shelf displays. The research integrates measurements with a mobile eye camera (Eye tracker glasses) in real conditions of a wine shop in order to reveal the impact of merchandising (display of domestic and foreign wines) on the visual attention of the consumer. The results of qualitative research carried out in March 2015 will be presented

Role of public relations in the sustainability marketing in the Slovak agribusiness practice

The paper points at importance of Public Relations and its role in the sustainability marketing in the Slovak agribusiness practice. Strategically, the business must be centered on the customers more than the products. Public Relations help the companies target more on consumer´s needs. If the companies push more on the product and disregard consumers wants and the benefits they can get, company will lose the customers in no time. Paper shows the selected successful stories of sustainability marketing in agribusiness in Slovakia and most popular types of PR – events and frequencies of their organizing in the agricultural companies with foreign participation and domestic ones as well as importance of using media for promotion. When reaching sustainability and business success, there are certain requirements that have to be met. In the business, the four Ps are used together with some more innovative solutions and approaches as public, politics, and some other external and internal factors. In addition to those factors there are in the paper shown certain requirements that have to be met in order to be successful in responsible business, marked with S as satisfaction, safety and sustainability ar