Tomas Bata University in Zlín
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MIDI pulse width modulation application
No full textArticle describes simulation application for automatic managing lights devices on the stage. There are described all technologies and protocols necessary for application development. MIDI messages are input information and as an output serves Pulse width modulation. A managing tension is the result of Pulse width modulation. A managing tension directs electrical devices via transformation interfaces. The application is intended for users who use the MIDI protocol as part of a live audio and audio-visual production.Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT; Internal Grant Agency of Tomas Bata University, (IGA SV30111148020
On the relation between the Smith predictor and algebraic control approach for time delay systems: A case study
No full textThe Smith predictor is a well-established model-based strategy for eliminating or attenuating a dead-time effect on the control feedback loop. A controlled system model and a dead-time estimation represent crucial parts of the predictor structure that, however, are usually inaccurate. The design problem becomes more challenging when internal (state) delays also appear. An algebraic approach in a specific ring of quasi-polynomial meromorphic functions was proposed recently to design controllers for linear systems with internal delays. This contribution intends to compare these two design principles and find an equivalence between them from the viewpoint of closed-loop transfer functions. The sufficient stability condition for the Smith predictor structure is formulated, and necessary and sufficient conditions for constant-wise reference tracking and load disturbance attenuation are generally derived. A specific case of controlling a heating-cooling process for more complex (linear-wise) external signals is studied, and simple numerical robustness tests are performed. A concluding research outlook based on the obtained results is proposed as well.National Research Foundation of Korea, NRF; Ministry of Science and Technology of the People's Republic of China, MOST; Tomas Bata University in Zlín, TBU; Ministry of Science and ICT of the Republic of Korea; National Natural Science Foundation of China, NSFC, (52076013); Beijing Municipal Science and Technology Commission, Adminitrative Commission of Zhongguancun Science Park, (3212024
Towards a greener tomorrow: investigating the nexus of GHRM, technology innovation, and employee green behavior in driving sustainable performance
Full text linkIn response to the global imperative to address climate change, organizations are increasingly pressured to reduce industrial waste, curb carbon emissions, and adopt environmentally responsible practices. This study aims to investigate the interplay between Green Human Resource Management (GHRM), technological innovation, and sustainable performance, with a focus on the moderating role of employee green behavior, within the manufacturing leather industry of Pakistan. According to the Resource‑Based View (RBV) theory, a firm’s competitive advantage arises from its unique bundle of internal resources and capabilities, rather than solely from external factors such as market positioning or industry conditions. The study population comprises top and middle management personnel from various roles within leather manufacturing firms, selected through cluster random sampling. A total of 525 questionnaires were distributed, of which 347 were deemed suitable for analysis. Utilizing SPSS version 25 and AMOS version 25 for hypothesis testing, the findings reveal a positive and significant relationship between GHRM, technological innovation, and sustainable performance. Employee green behavior moderates the relationship between GHRM, technological innovation, and sustainable performance, emphasizing individual actions’ role in sustainability. This study offers insights into this nexus, highlighting direct and indirect effects, and provides practical guidance for policymakers and managers to enhance sustainable performance through environmental priorities and targeted interventions.Tomas Bata University in Zlín, TBU, (IGA/FAME/2023/012); Tomas Bata University in Zlín, TBUInternal grant agency (iga) at tomas Bata University in Zlin, czech Republic [iga/FaMe/2023/012
A comprehensive exploration of biomass gasification technologies advancing United Nations sustainable development goals: Part II : Reactor types, power generation, current status and future challenges
Full text linkPart II of this review focuses on methodologies and protocols employed in biomass gasification, recognising its pivotal role in sustainable energy generation. Additionally, the article discusses the challenges associated with gasification technology, such as tar formation, biomass heterogeneity and uneven biomass supply in different seasons. It emphasises the need for further research and infrastructure development to overcome these barriers and facilitate the efficient distribution and commercialisation of biomass gasification technology. Overall, the scope of the article extends to providing insights into the status, challenges and future prospects of biomass gasification for achieving sustainable energy goals.Nederlandse Onderzoekschool Voor Astronomie, NOV
The structure and the distribution of phraseological units in intermediate and upper-intermediate EFL textbooks
Full text linkThe knowledge of native phrases and idiomatic expressions is considered to be an essential aspect of one’s fluency in a foreign language and can advance learners toward more excellent proficiency in foreign language acquisition. However, not much research has been dedicated to how they are implemented in the school textbooks. This research work aims to examine the occurrence of phraseological units in the four selected English textbooks for B1 and B2 levels, which are recommended for use at secondary grammar schools and secondary vocational schools in Slovakia by the Ministry of Education. They aim to prepare the secondary school learners for their final school-leaving exams – which are based on and in line with the Common European Framework of Reference for Languages requirements for the specific proficiency levels. To fill the gap in present studies, a detailed analysis was implemented, which included not only the exercises explicitly aimed at phraseological units but also the parts of the textbook, which dealt with the formulaic language implicitly. The main question posed dealt with the categories of phraseological units and their distribution in the analyzed textbooks. Phraseological units were identified, classified, analyzed, and counted by quantitative content analysis. The results showed that although there were phraseological units found in all analyzed textbooks, their distribution and classification differed significantly. Once they were included in the very limited number and variety of exercises, they were never used or mentioned again. Moreover, their explanation was absent or insufficient. The listed findings indicate that learners might encounter significant issues when trying to advance toward higher EFL proficiency levels
Effect of gentamicin-loaded calcium phosphate coating and polymeric coating on the degradation properties of biodegradable iron-based biomaterials
Full text linkIn the past decades, iron has been one of the intensively studied biodegradable metals due to its suitable mechanical properties, but it suffers from slow degradation in a physiological environment and low bioactivity. In this work, the beneficial properties of ceramic and polymer coatings were merged to enhance the corrosion properties and biological compatibility of Fe-based biomaterials. A new bilayer coating for Fe-based biomaterials that speeds up degradation while offering controlled, localized drug release to prevent infections was prepared. In addition, bioactive coatings with an incorporated antibiotic (gentamicin, Ge) were produced to introduce antibacterial properties into the prepared biomaterials and thus increase their bioactivity. The calcium phosphate (CaP) coating layer as well as a bioactive coating layer of CaP doped with gentamicin was electrochemically deposited onto an iron substrate. A layer of poly(ethylene glycol) was subsequently applied to the selection of prepared specimens to create a bilayer ceramic/polymer coating. Electrochemical and immersion corrosion tests revealed that the application of a bilayer coating allowed achieving the desired acceleration of degradation, while the application of only a ceramic coating led to a reduction in the corrosion rate. A slight increase in the corrosion rate was observed for samples with bioactive drug-containing coatings compared to samples with drug-free coatings. Higher viability of human fibroblastic cells cultured in the extracts of the tested samples was noted for samples with a bilayer coating compared to a ceramic coating. The addition of gentamicin in the bioactive coatings had no significant effect on the viability value. Antibacterial tests proved the antibacterial activity of samples with a gentamicin-loaded coating layer against Escherichia coli and Staphylococcus aureus strains. A detailed study of the release of gentamicin from the prepared coatings revealed a different mechanism of drug release from the ceramic and the ceramic/polymer coating. Furthermore, it was found that the drug was released more slowly and uniformly from the bilayer coating. It is therefore possible to adjust the amount and duration of drug release from the bioactive coating by the thickness of the upper polymer layer. Incorporation of an antibiotic in a combined ceramic/polymer coating enabled the creation of a high-performance bioactive coating for Fe bone implants with the possibility to release a drug in the vicinity of the implant in a controlled manner to address the needs of the patient.Agentúra na Podporu Výskumu a Vývoja, APVV; Faculty of Natural Sciences UPJŠ in Košice, (vvgs-2023-2518); International Visegrad Fund, IVF, (22310096); European Commission, EC, (09I03-03-V04-00010)International Visegrad Fund [APVV-20-0278]; Slovak Research and Development Agency [vvgs-2023-2518]; Internal scientific grant system of the Faculty of Natural Sciences; Visegrad Grants from International Visegrad Fund [22310096]; EU NextGenerationEU through the Recovery and Resilience Plan for Slovakia [09I03-03-V04-00010
Polyphenolic spectrum of goji berries and their health-promoting activity
Full text linkA significant increase in interest in new, naturally occurring sources of antioxidants is evident not only in the food industry but also in the pharmaceutical and cosmetic industries. Plant sources such as fruits, both traditional and less common, are often investigated. Goji berries (Lycium barbarum, Lycium chinense, and Lycium ruthenicum) represent fruits rich in polyphenols, especially phenolic acids (38.91 to 455.57 mg/kg FW) and flavonoids, with black goji berries (L. ruthenicum) containing a predominance of anthocyanins (119.60 to 1112.25 mg/kg FW). In this review, a comparison of polyphenol occurrence and content in the orange-red and black berries of L. barbarum, L. chinense, and L. ruthenicum is described. Goji berries represent a valuable source of nutrients and bioactive compounds that manifest a wide range of health-promoting effects. These benefits represent antioxidant, neuroprotective, and cytoprotective impacts, with effects on the metabolic control of glucose and lipids. This review is focused on an overview of the polyphenolic compounds occurring in these fruits, as well as their antioxidant activity and health benefits
Critical success factors of participatory community planning with geospatial digital participatory platforms
Full text linkIn recent years, Digital Participatory Platforms (DPPs) have become an increasingly popular tool for citizen participation in community planning processes. They serve municipalities, citizen initiatives, and other planning authorities as digital tools to collect feedback, discuss ideas, solve problems and monitor small-scale planning processes within their communities. In addition, DPPs facilitate the integration of the spatial domain into participatory community planning. In this paper, we assess the most important Critical Success Factors (CSFs) of participatory community planning with geospatial DPPs, and analyze the potential, opportunities, and challenges associated with integrating these platforms into community planning. We analyze the results of a digital questionnaire that we shared with a selected group of expert scholars and community stakeholders. We then contextualize this feedback with our experiences from the piloting phase and commercial roll-out of the ‘Bürgercockpit’-application for participatory community planning within the Austrian Agenda21-framework. As a result, we identify the most important CSFs of participatory community planning with geospatial DPPs. This set of CSFs should provide a better orientation on how to complement well-established analog participatory methods and practices with geospatial DPPs for the co-production of shared visions and solutions, ultimately empowering all stakeholders of a planning process to better manage their communities.Austrian Science Fund, FWF; Upper Austrian Future Academy; Public Agency for Regional Development of the Province of Upper Austria; Universität Salzburg, PLUS, (W1237); Universität Salzburg, PLUSAustrian Science Fund (FWF); Doctoral College-GIScience, University of Salzburg, Austria [W1237]; Public Agency for Regional Development of the Province of Upper Austria (Regionalmanagement Oberoesterreich-RMOOE); Upper Austrian Future Academy (Oberoesterreichische Zukunftsakademie-ZAK); Paris Lodron University of Salzburg Publication Fun
Deciphering the role of LiClO4 salt on electrochemical properties of plasticized biopolymer electrolytes for superior EDLC efficiency at elevated temperatures
Full text linkThe advancement of electric double-layer capacitors capable of operating beyond standard conditions is vital for meeting the demands of modern electronic applications. To realize this, huge efforts have been devoted to the development of biopolymer-based electrolytes. This study explores the potential application of a plasticized biopolymer-based electrolyte in electric double-layer capacitor systems at ambient and elevated temperatures. A plasticized Na CMC/PEO/LiClO4 electrolyte is successfully synthesized via a solution-casting approach. Fourier-transform infrared spectroscopy and X-ray diffraction verify the material's chemical and amorphous structure, respectively. The sample was designated as R20, with a salt concentration of 20 wt. % exhibits good electrochemical properties, including a high ionic conductivity of 3.73 × 10−4 S cm−1 and a wide electrochemical stability window of 3.2 V. The sample is placed into an electric double-layer capacitor cell and subjected to cyclic voltammetry and galvanostatic charge–discharge analyses at both room and high temperatures. The cyclic voltammetry test demonstrates that the electric double-layer capacitor achieves a specific capacitance (Cp) of 38 F g−1 at ambient temperature, which increases to 60 F g−1 at 60 °C. Additionally, the electric double-layer capacitor cell maintains consistent performance, demonstrating stable power and energy densities of 25 W kg−1 and 6 Wh kg−1, respectively, under both ambient and elevated temperatures.European Just Transition Fund; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT; TBU in Zlin, (IGA/CPS/2025/002); DKRVO, (RP/CPS/2024‐28/002); Ministerstvo Životního Prostředí, MŽP, (CZ.10.03.01/00/22_003/0000045, CZ.02.01.01/00/23_021/0009004); Ministerstvo Životního Prostředí, MŽPMinistry of the Environment of the Czech Republic, project CirkArena [IGA/CPS/2025/002]; Internal Grant Agency of TBU in Zlin [RP/CPS/2024-28/002]; Ministry of Education Youth and Sports of the Czech Republic [CZ.10.03.01/00/22_003/0000045]; European Just Transition Fund within the Operational Programme Just Transition under the aegis of the Ministry of the Environment of the Czech Republic [CZ.02.01.01/00/23_021/0009004]; Operational Programme Johannes Amos Comenius OP JA
Capping agent control over the physicochemical and antibacterial properties of ZnO nanoparticles
No full textLife science research has largely benefited from the use of nanoparticles (NPs), yet fundamental issues such as colloidal stability and control over NP size and shape affect NP properties and functions in biomedical applications. Here we show that including capping agents directly into zinc oxide (ZnO) NP synthesis can lead to better control of these properties and their enhanced functionality. A systematic study of the influence capping agents has on the physicochemical and antibacterial properties of ZnO NP synthesized using the microwave (MW)-assisted polyol method is presented. Primary NP size (10–20 nm) was controlled by zinc precursor concentration, and NP shape was influenced by capping agent type. Capping agents enabled control over the surface charge and water interaction properties of ZnO for further investigations involving bacteria. The superior antibacterial effect was observed using positively charged, hydrophilic HMTA-capped ZnO, yet negatively charged hydrophobic OA-capped ZnO still exhibited an antibacterial effect. These observations suggest different underlying mechanisms, and we discuss these differences with particular reference to the specific surface area of ZnO, and how this is key to bacteria-nanoparticle interactions. Appropriate selection of capping agents is crucial for the synthesis of potent ZnO NPs intended for antibacterial applications, specifically for combating resistance.European Commission, EC; TAČR, (TM03000033); US-UK Fulbright Commission, (2022-21-1, RP/CPS/2024-28/007); US-UK Fulbright Commission; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT, (CZ.02.01.01/00/22_008/0004596 - SenDiSo); Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT; České Vysoké Učení Technické v Praze, ČVUT, (SGS23/166/OHK4/3T/13); České Vysoké Učení Technické v Praze, ČVUT; Grantová Agentura České Republiky, GAČR, (24-10607J); Grantová Agentura České Republiky, GAČRTACR; European Union; Grant agency of the Czech Republic; CTU; Fulbright Commission in the Czech Republic; Ministry of Education, Youth and Sports of the Czech Republic; [TM03000033]; [CZ.02.01.01/00/22_008/0004596-SenDiSo]; [24-10607J]; [SGS23/166/OHK4/3T/13]; [2022-21-1]; [RP/CPS/2024-28/007