Tomas Bata University in Zlín
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Temperature stability of injection moulded low-density polyethylene parts modified by accelerated electrons
No full textLow-density polyethylene is one of the most widely used polymer materials, due to its easy workability and its properties, in particular, it excels in chemical resistance. The reason why it is often not used in technical applications is its limited mechanical properties and low temperature stability. One of the ways to improve these properties (especially temperature stability) is a physical modification by radiation cross-linking (accelerated electrons). The properties of already finished injection moulded products can be changed depending on the radiation dose. This is confirmed by the results of measurements of temperature stability and mechanical properties. With increasing radiation dose (highest used radiation dose 198 kGy), the temperature stability of low-density polyethylene increases significantly, but the tensile properties improve only slightly. © 2022 IEEE.Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT: CZ.02.2.69/0.0/0.0/18_053/0017879-
Prosumer based district heating model
No full textThe entire industry, including central heating, is currently being transformed into its 4th generation. In addition to technical and technological changes, it is also necessary to adapt simulation models to this. This article introduces the model that is being developed at the presenter's workplace. Proposed model incorporates prosumer elements - objects that do not have to have a fixed role, i.e. be a producer or consumer of energy, but this role can be variable over time. The concretely implemented solution in the model can be called a pulling variant of the plug flow. In this variant, heat-carrying plugs are pulled into prosumer objects. The model parameters were set based on the real system of the local DH operator. Based on its operational data, the model was therefore tested and validated. Its behaviour was monitored for parameters: heat loss and transport delay in the pipelines. The experiment that will be described in this article shows the behaviour of the model in a situation where the heat demand on the consumption side is known and it is necessary to determine the course of the load for producers over time. The results achieved by the pull plug flow model are satisfactory, the consistency between the measured values and the simulation results are very promising. © 2022 IEEE.Technology Agency of the Czech Republic, TACR: TK0402022
Driving factors to competitive sustainability of SMEs in the tourism sector: An introspective analysis
Get PDFThe services sector continues to play a major role in the transformation of economies. For instance, the tourism sub-sector, which is a key segment of the service sector has become one of the major contributors to economic transformation in developing economies. Given this prospect, stern competition has been created among tourism firms across the globe. However, the tourism sectors in most developing countries continue to grapple with competitive pressure challenging their competitive sustainability. Drawing on the theory of change, the purpose of this paper is to investigate factors that drive the competitive sustainability of small and medium enterprises in the tourism sector in Ghana. Data was collected from 310 SMEs in the tourism sector through the administration of a structured questionnaire and analyzed using Partial Least Square Structural Equation Modelling. The results show that price sensitivity, site maintenance, and entrepreneurial competency have a positive and significant effect on the competitive sustainability of small and medium enterprises in the tourism sector. By implications, the paper provides managers of tourism facilities with an encompassing mechanism aimed at improving tourism sites, enhancing the entrepreneurial competencies of staff, and adopting pricing strategies to enhance the competitive sustainability of the tourism sector from a developing country's perspective. The study advances theories on tourism competitive sustainability.Tomas Bata University in Zlin, TBU: IGA/FaME/2021/005Tomas Bata University in Zlin [IGA/FaME/2021/005
Can Information from publicly available sources reveal manipulation of financial statements? Case study of Czech and Slovak companies
Get PDFFinancial reporting is a source of information used as a basis for economic decisions. It is essential for the calculation of financial indicators that serve to evaluate the financial health of a company. Statements that are accurate and provide trustworthy information are a prerequisite for an enhancement of company competitiveness on national and global markets. Research into and studies on the accuracy of the information contained in statements show that statement creators use manipulation to improve accounting entities' image. The aim of this paper is to verify whether ordinary users of financial statements can rely on the veracity of the information contained in the financial statements published in the usual way in available sources. The research subject was financial statements of entities listed in the TOP Czech and TOP Slovak ranking within the revenue category. We investigated whether reporting show an indication of accounting data manipulation using the CFEBT (cash flow earning before tax) method and a method aimed at verifying the linear dependence between earning before tax (EBT) and cash flow (CF). The empirical results yielded interesting findings. They showed that the disputable item is the results of accounting estimates, which are often influenced by subjective decisions made by the financial statements creators
Fire safety threat risk analysis for soft target
No full textThe level of threat risk within soft targets is constantly increasing during the development of the company. It is, therefore, necessary to pay more attention to this issue. This article deals with a qualitative risk analysis of soft target threats. When determining the level of risk, it is essential to characterize soft targets and their types. Qualitative risk analysis of soft targets threats compares and evaluates their interrelationship. Based on this correlation, it is essential to develop criteria through which the importance and significance of threat risks can be determined within the framework of soft targets. In addition to the established and evaluated analysis, it is also essential to develop proposals for measures to minimize the effects of potential threats under soft targets. The threats relate mainly to fire safety. A specific type of soft target for this threat risk analysis is a shopping centre. © 2021 Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved.Univerzita Tomáše Bati ve Zlíně: IGA/CebiaTech/2021/00
Comparison of the lighting condition of the interior to create a 3D background in virtual reality
No full textThis article deals with capturing the image in the gallery's interior with a 3D camera in different lighting conditions. Currently, 3D backgrounds are a standard part of modelling and virtual reality. There are several ways to create a background, and there are various high-resolution 3D scanning devices. This study deals with capturing an image in the interior of a gallery with a 3D camera in different lighting conditions. The text lists the fundamental properties of light and lighting. The parameters and possibilities of capturing the image with a 3D camera are also described. The article further describes the indoor lighting conditions in the interior when using a 3D camera and compares the lighting conditions and their effect on the quality of the captured image and the goal of obtaining the best possible quality of the captured image. © 2021 Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved
RFID reader testing kit for autonomous airship
No full textWithin the framework of the Autonomous airship project that is being developed at Tomas Bata University in Zlin, an RFID testing kit has been created in order to test the possibility of applying the RFID technology at airship locating inside an enclosed hall. In this paper the hardware design of such testing kit is described. The kit should serve for processing various tests of RFID antennas and controlling algorithms. Copyright © (2012) by Danube Adria Association for Automation and Manufacturing (DAAAM)
The remote monitoring and controlling via the GSM network GPRS data transfer
No full textThe aim of this work was to design and apply a remote access by means of a mobile phone running the Java based application routine. That Java mobile phone routine communicates with the controlled and monitored system through the GPRS data transfer by means of the internet TCP/IP protocol. The data are transferred in XML format
Mining Top-K high utility itemset using bio-inspired algorithms
No full textHigh utility itemset (HUI) mining is a necessary research problem in the field of knowledge discovery and data mining. Many algorithms for Top-K HUI mining have been proposed. However, the principal issue with these algorithms is that they need to store potential top-k patterns in the memory anytime, and they request the minimum utility threshold to automatically rise when finding HUIs. Consequently, the performance of existing exact algorithms for Top-K HUIs mining tends to decrease when the database size and the number of distinct items in the databases rise. To address this issue, we suggest a Binary Particle Swarm Optimization (BPSO) based algorithm for mining Top-K HUIs effectively, namely TKO-BPSO (Top-K high utility itemset mining in One phase based on Binary Particle Swarm Optimization). The main idea of TKO-BPSO is not only to use a one-phase model and strategy Raising the threshold by the Utility of Candidates (RUC) to effectively increase the border thresholds for pruning the search space but also to adopt the sigmoid function in the updating process of the particles. This might significantly reduce the combinational problem in traditional HUIM when the database size and the number of distinct items in the databases rise. Consequently, its performance outperforms existing exact algorithms for mining Top-K HUIs because it efficiently overcomes the problem of the vast amount candidates. Substantial experiments conducted on publicly available several real and synthetic datasets show that the proposed algorithm has better results than existing state-of-the-art algorithms in terms of runtime, which can significantly reduce the combinational problem and memory usage.IGA/CebiaTech/022/001; Technology Agency of the Czech Republic, TACR: FW0101038
Contemporary challenges in the European pharmaceutical industry: a systematic literature review
No full textPurpose: The COVID-19 pandemic creates inefficiencies in the health-care system by having devastating consequences. It has demonstrated how inefficiencies in the health system can have a significant impact on social cohesion, economic growth and public confidence in government. The main purpose of this study is to explore the contemporary challenges faced by the pharmaceutical industry in Europe. Design/methodology/approach: This study used a systematic literature review method and adopted inclusion and exclusion criteria after constructive reviews of articles from Web of Science and Scopus databases along with the ranked journals in the Chartered Association of Business Schools to search the following key terms “challenges in the European pharmaceutical industry” during the period from 2011 to 2022. The terms are set to be searched in the publications’ titles, abstracts and keywords. Findings: This study reviewed 57 papers, and the systematic review revealed the vulnerability of the European pharmaceutical industry, such as the default patent system, ineffective research and development, debate on the role of alliances, low level of expertise in the European health-care system, pharmaceutical supply chain management and other issues. Research limitations/implications: This study suggests that future research may explore the challenges of multisectoral and cross-country perspectives to get a better understanding, and for the long-term sustainability of public pharmaceutical spending, new models of enhancing research investments are needed, and Europe can still play a leading role in its tradition structure within capturing innovative ideas. Practical implications: It provides new useful insights to policymakers, global leaders and managers to devise policies to achieve a performance-oriented culture in their institutions and firms. Social implications: The pharmaceutical sector has recognized the influence of social determinants of health. It moves toward sustained sound health of people to have a flourishing pharmaceutical sector. Originality/value: There is an insufficient study on the contemporary challenges of the European pharmaceutical industry. This study presents the argument that earlier studies ignored the contemporary issues facing the European pharmaceutical industry from a comprehensive and wider angle. In addition, the COVID-19 pandemic is a recent occurrence, and it causes inefficiency in the health-care sector, where the pharmaceutical industry plays a crucial role; importantly, this topic is emerging and underresearched in the existing literature. There is also a lack of systematic literature review studies in this field. © 2022, Emerald Publishing Limited.Internal Grant Agency of FaME TBU [IGA/FaME/2022/001, IGA/FaME/2022/011