Článek ve sborníkuhttp://hdl.handle.net/10563/10017172026-07-25T18:38:16Z2026-07-25T18:38:16ZBiofilter and regenerative thermal oxidizer controls for olive oil mill volatile organic compounds in CreteMarková, AlžbětaQiming, SunArtykova, MavlyudaNabiyeva, NozimaAvezov, SaidTukhtasinov, Khalilillohttp://hdl.handle.net/10563/10128332026-07-24T14:23:15Z2025-01-01T00:00:00ZBiofilter and regenerative thermal oxidizer controls for olive oil mill volatile organic compounds in Crete
Marková, Alžběta; Qiming, Sun; Artykova, Mavlyuda; Nabiyeva, Nozima; Avezov, Said; Tukhtasinov, Khalilillo
Olive oil mills emit volatile organic compounds from malaxation, decantation, and storage, which affect local air quality and sensory nuisance in Mediterranean settlements. This article evaluates end-of-pipe controls based on biological filtration and regenerative thermal oxidation for medium-scale mills in Crete. The objective is to compare pollutant removal, energy demand, greenhouse gas emissions, and costs under realistic exhaust compositions and operating profiles. Using open operational statistics for 2012-2024 and mass-balance models, we simulate three configurations: biofilter, regenerative thermal oxidizer, and a hybrid system with biological filtration followed by a polishing oxidizer. Indicators include removal efficiency for total volatile organic compounds, odor abatement, specific energy use, carbon dioxide equivalent per thousand cubic metres treated, and levelized cost. Results show that biological filtration achieves high average removal with the lowest energy burden, while regenerative thermal oxidation guarantees peak compliance at higher costs; the hybrid configuration balances reliability and climate impact for operators.
2025-01-01T00:00:00ZCFD-based evaluation of 3D-printed muffler inserts: Impact of internal geometry on pressure drop and turbulent kinetic energyZvoníček, TomášNovák, LiborSmolka, Petrhttp://hdl.handle.net/10563/10128322026-07-24T23:04:09Z2026-01-01T00:00:00ZCFD-based evaluation of 3D-printed muffler inserts: Impact of internal geometry on pressure drop and turbulent kinetic energy
Zvoníček, Tomáš; Novák, Libor; Smolka, Petr
2026-01-01T00:00:00ZCharacterization of elastomer durability: Insight into compression set and stress relaxationZádrapa, PetrMrkvičková, SimonaMacourek, Vilémhttp://hdl.handle.net/10563/10128272026-07-09T22:07:17Z2025-01-01T00:00:00ZCharacterization of elastomer durability: Insight into compression set and stress relaxation
Zádrapa, Petr; Mrkvičková, Simona; Macourek, Vilém
This study investigates the thermal aging behaviour of EPDM rubber compounds cured with varying concentrations of peroxide. Mechanical properties such as hardness, tensile strength, elongation at break, compression set, and stress relaxation were evaluated before and after exposure to elevated temperatures. A key innovation of this research is the use of a newly developed testing apparatus for stress relaxation measurements, designed to enable discontinuous long-term testing under controlled deformation and environmental conditions. The device allowed monitoring of stress decay over time, providing deeper insight into the viscoelastic behaviour of rubber material during thermal exposure. Results showed that peroxide concentration significantly influences crosslink density and aging resistance, with optimal performance observed at intermediate peroxide levels. The findings highlight the importance of formulation design and introduce a novel methodology for evaluating long-term elastomer durability.
2025-01-01T00:00:00ZServant leadership: Bibliometric analysis and future agendaKalsoom, GhulamSmaliukiene, RasaZámečník, Romanhttp://hdl.handle.net/10563/10128282026-07-09T22:07:17Z2025-01-01T00:00:00ZServant leadership: Bibliometric analysis and future agenda
Kalsoom, Ghulam; Smaliukiene, Rasa; Zámečník, Roman
Servant leadership is positioned as a new field of research for leadership scholars. We conducted bibliometric review by using 150 peer-reviewed articles from Web of Science database. The data collection period was from 1990 to 2025 as to provide comprehensive reflection on this topic. We used VoSviewers Software for data analysis. This review generated themes such as servant leadership in hospitality sector, leadership and work engagement, servant leadership as a key driver for innovation, gender, leadership and job outcomes, a review of diversified leadership styles. This review advance our understanding by looking Servant leadership in European perspective as it is an under-explored context. Theoretically, this research contributes to body of knowledge on moral leadership literature. This research provides fresh guidelines on servant leadership for organizations to adopt moral leadership as it is most needed nowadays due to financial scandals and unethical practices.
2025-01-01T00:00:00Z