Tomas Bata University in Zlín
Institutional repository of Tomas Bata University LibraryNot a member yet
10673 research outputs found
Sort by
Examining the influence of brand personality dimension on consumer buying decision: evidence from Ghana
Get PDFWith the advent of innovative marketing, the increasing use of brand personality concepts for the promotion of a brand or product has received scholarly work across the globe. Yet little is known in the literature about the dimensions of brand personality and its applicability in the telecommunication industry. Considering the known link between brand personality and customer purchase intent, this research sought to examine the impact of the brand personality dimension on customer buying decisions in the telecoms sector. A positivist research paradigm was used to attain the study goal(s) with valid data of 414 subscribers (customers) of telecom giants in Ghana. The result from the PLS-SEM technique identified five main attributes of brand personality (ie. sincerity, excitement, competence, sophistication, and ruggedness) as antecedents of customer buying decisions in the research model. Findings revealed that brand sincerity, brand excitement, and brand competence have a significant relationship with customer buying decisions. Whereas brand sophistication and ruggedness were not. An effective brand increases its brand equity by having a consistent set of traits that a specific consumer segment enjoys. This article not only provides empirical insight into the brand personality literature but also serves as a source of information for managers in the telecom industry to successfully trigger strategic marketing practices that would help to optimize the usefulness of the brand personality concept. Limitations and future research directions are discussed.Tomas Bata University in Zlin [IGA/FAME/2022/010, IGA/FAME/2021/005-Significant
Early literacy curriculum and its journey to kindergarten classroom
No full textImplementing new school reforms in school practice is extremely challenging mostly because of teacher resistance to change, or uncertainty, fear, or nostalgia for the previous curriculum. Since 2016 a new preschool curriculum including a new early literacy curriculum has been in force in Slovakia. The aim of the study is to assess how well teachers follow the requirement to use a variety of texts in the classroom to promote early literacy development. The analysis is performed on 138 observations out of a total of 215 structured observations, in which teachers used a text as part of an educational activity. The predominant use of narrative texts is linked to more traditional early literacy activities; however, the employment of different text genres relates to the use of different sources of text presentation, engagement with different ways of working with the text and is accompanied by different reading activities.Scientific Grant Agency of the Ministry of Education of the Slovak Republic [VEGA 2/0026/21]; Slovak Research and Development AgencySlovak Research and Development Agency [APVV-19-0074]VEGA 2/0026/21; Agentúra na Podporu Výskumu a Vývoja, APVV: APVV-19-007
The effect of in vitro digestion on matcha tea (camellia sinensis) active components and antioxidant activity
Get PDFThis study investigates the effects of in vitro digestion on the antioxidant activity and release of phenolics, xanthine alkaloids, and L-theanine contents of matcha. It establishes digestibility values between 61.2-65.8%. Considering native matcha, the rutin content (303-479 mu g/g) reached higher values than catechin (10.2-23.1 mu g/g). Chlorogenic acid (2090-2460 mu g/g) was determined as predominant. Rutin, quercetin, ferulic, ellagic, and caffeic acid were the least-released phenolics, and their remaining residues reached 76-84%. Protocatechuic, hydroxybenzoic acid, epigallocatechin, and epigallocatechin-3-gallate were the best-released phenolics, with the remaining residues under 1%. Caffeine, L-theanine, and theobromine contents in native matcha reached 16.1, 9.85, and 0.27 mg/g, respectively. Only caffeine (3.66-5.26 mg/g) and L-theanine (0.09-0.15 mg/g) were monitored in the undigested residue, representing 13 and 0.1% of the remaining part, respectively. A chemiluminescence assay showed that water-soluble antioxidants showed significant antioxidant activity in native matcha, while lipid-soluble compounds showed higher antioxidant activity in the undigested samples. Cinnamic and neochlorogenic acids were determined as the main contributors to the ACW values in the undigested matcha, epicatechin, and quercetin in the ACL fraction. The application of the digestion process reduced the antioxidant activity by more than 94%. SEM has proved specific digestion patterns of in vitro digestibility of matcha.Univerzita Tomáše Bati ve Zlíně: IGA/FT/2020/010Tomas Bata University in Zlin [IGA/FT/2020/010
Calculation of robustly relatively stabilizing PID controllers for linear time-invariant systems with unstructured uncertainty
Get PDFThis article deals with the calculation of all robustly relatively stabilizing (or robustly stabilizing as a special case) Proportional-Integral-Derivative (PID) controllers for Linear Time-Invariant (LTI) systems with unstructured uncertainty. The presented method is based on plotting the envelope that corresponds to the trios of P-I-D parameters marginally complying with given robust stability or robust relative stability condition formulated by means of the H infinity norm. Thus, this approach enables obtaining the region of robustly stabilizing or robustly relatively stabilizing controllers in a P-I-D space. The applicability of the technique is demonstrated in the illustrative examples, in which the regions of robustly stabilizing and robustly relatively stabilizing PID controllers are obtained for a controlled plant model with unstructured multiplicative uncertainty and unstructured additive uncertainty. Moreover, the method is also verified on the real laboratory model of a hot-air tunnel, for which two representative controllers from the robust relative stability region are selected and implemented.Grantová Agentura České Republiky, GA ČR: 21-45465LCzech Science Foundation (GACR); [21-45465L
Community renewable energy in the Czech Republic: Value proposition perspective
Get PDFThe community renewable energy offers much potential for sustainable projects differing in terms of regional governance, technology, social, and economic settings. However, the energy sector often lacks a systematic approach to community energy project data, and community projects are based on diversified value proposition designs. This study introduces a new concept of value proposition canvas. Four regional case studies provide essential inputs for the novel community renewable energy value proposition canvas based on the triple bottom line concept. The argument of this study is that energy communities bring together multiple positive local impacts. Moreover, we offer a novel, structured way of looking at its value propositions in the form of triple bottom line value proposition canvas. The study results might serve for the new entrants to the low carbon energy communities and decision-making authorities in energy policy.Ministry of Education, Youth and Sports of the Czech Republic-DKRVO [RP/CPS/2022/005]RP/CPS/2022/00
Unstable systems as a challenging benchmark for control engineering students
No full textThe paper highlights the importance of using unstable models in the process of training experts in the field of control engineering to gain better understanding of the underlying problems they pose. For such purposes one particular model, represented by the two-wheeled unstable transporter Inteco, is presented briefly and tested on the basic stabilization problem. Classical PID and LQ control approach is utilized in this paper, including also derivation of a simplified non-linear model of the system and its linearization for control purposes. Some of the experimental results are presented and discussed, followed by an overall evaluation of the model and its operation. Consequently, this paper can serve as an inspiration for other departments training experts in control systems design and similar engineering fields. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG
Transport risk management in the dairy industry in the Czech Republic
Get PDFThe Czech food industry is one of the traditional branches of the Czech processing industry and determines the competitiveness of the entire agricultural sector. The food industry represents an essential role as an employer, but it is also crucial for its economic performance. The dairy industry is a specific field. It is confirmed for their whole production and logistics process. A significant part of raw materials and products cannot be stored for a long time, and production processes are affected by several regulations. Transportation is one of the most critical logistics processes. Because dairy products expire quickly, transport emphasizes the speed and efficiency of supply throughout the chain, which carries the risk of burdening transport infrastructure and air pollution. The research aimed to identify the most significant transport risks dairy companies face. Further, evaluate how these risks are managed and the intensity of risk management methods in this field of business. Although the food industry is one of the world's essential industries with necessary implications for the world economy, the authors have encountered a lack of research and expert research to cover this topic and address its specifics and problems. The aim of the research is to identify the most significant transport risks dairy companies face. Further, evaluate how these risks are managed and the intensity of risk management methods in this field of business. Copyright © 2022, AIDIC Servizi S.r.l.Univerzita Tomáše Bati ve Zlín
The effect of homogenization and addition of polysaccharides on the viscoelastic properties of processed cheese sauce
Get PDFThis study was conducted to determine the effect of 1-stage homogenization (OSH) and 2-stage homogenization (TSH) and the addition of polysaclevels ranging from 0.000 to 1.000% (wt/wt)] on the physicochemical, viscoelastic, and mechanical vibration damping properties of processed cheese sauces (PCS) after 30 d of storage (6 +/- 2 degrees C). The basic chemical all tested samples. Viscoelastic measurements indicated that PCS rigidity was directly proportional to increasing CR or FR concentration and to the application of homogenization. The interactions between the application of homogenization and the concentration of polysaccharides used were also significant. Compared with OSH, TSH did not lead to any further increase in the rigidity. The preceding results were also supported by data obtained from a nondestructive method of mechanical vibration damping. No changes in water activity were observed in any PCS sample. Overall, the addition of FR or CR appeared to be highly suitable for increasing the emulsion stability of PCS. If PCS products with softer consistency are desired, then a concentration of CR/FR 1.000% (wt/wt) together was observed.QK1710156; Univerzita Tomáše Bati ve Zlíně: IGA/FT/2022/005National Agency for Agriculture Research [QK1710156]; Grant Agency of the Tomas Bata University [IGA/FT/2022/005
Towards a correction factors-based software productivity using ensemble approach for early software development effort estimation
No full textAccuracy of effort estimation is one of the necessary conditions for efficiently managing software development projects. Since the information available in the early stages of software development is insufficient, software sizing metrics are considered critical factors for effort estimation. However, there is no consistent method for converting software sizing into the corresponding effort. Previous estimation methods have not considered software productivity a critical factor in estimating effort based on software sizing. This paper proposes a software productivity model based on correction factors in the Optimizing Correction Factors method through an ensemble construction mechanism of three popular machine learning techniques. The results show that using the proposed software productivity minimizes the estimation error of the methods compared to using fixed productivity metrics.IGA/CebiaTech/2022/001Faculty of Applied Informatics, Tomas Bata University in Zlin [IGA/CebiaTech/2022/001
Verification of convection predictors for the algorithm of statistical prediction of convective precipitation
No full textThis paper focuses on the description of the methodology of verification of convection predictors, which are implemented in the combined prediction in the Algorithm for statistical prediction of convective precipitation. The methodological part describes the algorithm of the statistical prediction of convective precipitation and the procedure for evaluating the verification of predictors. The resulting part contains the outputs from the verification of convection predictors for three main prediction categories - Convection triggering, Storm intensity and Convective cloud type. The outputs of this article will be intended for the design of a combined forecast, which is part of the Algorithm for the statistical prediction of convective precipitation. This algorithm can be used as one of the sources of more accurate predictions of convective storms, convective precipitation and dangerous phenomena as a support in the decision-making of the crisis management bodies of the region.[VI20192022134