ORIGINAL_ARTICLEThis article presents the circular-economy-based biorefinery concept developed by the “Biorefinery” research group at the Zittau/Görlitz University of Applied Sciences. The biorefinery concept aims the holistic utilization of plant raw materials and residues, in orders to exploit their entire value creation potential. The material or energetic utilization of all parts of the plants or plant residues results in significant economic and ecological advantages compared to conventional recycling methods and commonly accepted utilization concepts. The biorefinery process of our research group also envisages feeding products made of or contanining natural fibers after their use to a novel recycling process using saprobionthic fungi. As a result of fungal recycling mycelium-based biocomposites are produced and provided for further applications, e.g. in the construction industry or as packaging material. In this way, carbon can be sequestered in the long term and CO2 emissions can be avoided.https://acc-ern.tul.cz/archiv/PDF/ACC_2023_1_01.pdf2023-06-2972210.15240/tul/004/2023-1-001Circular economyBiorefineryEmission reductionPlant biomassValue-added productsJuditHarsányijudit.harsanyi@hszg.de1Zittau/Görlitz University of Applied Sciences, Faculty of Electrical Engineering, Research Group “Biorefinery”AUTHORMarzenaPoraj-Kobielskamarzena.poraj-kobielska@hszg.de2Zittau/Görlitz University of Applied Sciences, Faculty of Electrical Engineering, Research Group “Biorefinery”AUTHORMatthiasTirschm.tirsch@hszg.de3Zittau/Görlitz University of Applied Sciences, Faculty of Electrical Engineering, Research Group “Biorefinery”AUTHORFrankHentschelf.hentschel@hszg.de4Zittau/Görlitz University of Applied Sciences, Faculty of Electrical Engineering, Research Group “Biorefinery”AUTHORKAMM, B.; GRUBER, P. R.; KAMM, M.: Biorefineries – Industrial Processes and Products. Vol. 1, Wiley VCH, Germany, 2006. ISBN 3-527-31027-4; ISBN 978-3-527-31027-21CARUS, M.; GAHLE, Ch., PENDAROVSKI, C.; VOGT, D.; ORTMANN, S.; GROTENHERMEN, F.; BREUER, T.; SCHMIDT, Ch.: Studie zur Markt- und Konkurrenz- situation bei Naturfasern und Naturfaser- Werkstoffen (Deutschland und EU. [online]. 2008. [accessed 2023-05-24]. Available from WWW: https://renewable-carbon.eu/news/wp-content/uploads/news-images/20080425-07/2008-Naturfaserstudie.pdf2RUAN, P.; RAGHAVAN, V.; GARIEPY, Y.; DU, J.: Characterization of flax water retting of different durations in laboratory condition and evaluation of its fiber properties. BioResources. 2015, Vol. 10, Issue 2, pp. 3553–3563.310.15376/biores.10.2.3553-3563KOSCHKE, N.: Untersuchungen zum enzymatischen Bastfaseraufschluss unter besonderer Berücksichtigung des Faserhanfes (Cannabis sativa L.). Dissertation. Universität Hamburg, Fakultät für Mathematik, Informatik und Naturwissenschaften, Fachbereich Biologie. [online]. 2016. [accessed 2023-05-24]. Available from WWW: https://d-nb.info/1125019204/344CHEN, W.-S.; STRIK, D. P. B. T. B.; BUISMAN, C. J. N.; KROEZE, C.: Production of Caproic Acid from Mixed Organic Waste: An Environmental Life Cycle Perspective. Environmental Science & Technology. 2017, Vol. 51, Issue 12, pp. 7159−7168.510.1021/acs.est.6b06220

ORIGINAL_ARTICLEThe use of mobile platforms can help employees automate manual processes and streamline operations to save time and perform their tasks safely and accurately. A power-assisted vehicle to move weight around the place – solution: inexpensive, easy to apply, reliable, safe. It can adjust to various tasks, operators’ gait, loads up to 500 kg. It is a relatively inexpensive, easy-to-apply, reliable, and safe solution for moving weight. The motivation of the study is to increase efficiency and reduce physical strain on the operator in material handling tasks and to promote the implementation of this smart platform. Artificial intelligence learning methods are applied to adapt to individual operator’s experience, resulting in a personalized and more comfortable interaction with the help of Q-learning algorithm with 256 learning outcomes in adjusting controller settings: damping, mass, stiffness.https://acc-ern.tul.cz/archiv/PDF/ACC_2023_1_02.pdf2023-06-29233310.15240/tul/004/2023-1-002Q-learning algorithmsSmart platformAIHRIMaterial handling tasksHuman comfort criteriaDmitryKochubeydmitry.kochubey@tul.cz1Technical University of Liberec, Faculty of Mechanical Engineering, Institute of Mechatronics and Computer EngineeringAUTHORBANERJEE, S.; ACHARYA, K. N.; CHATTOPADHYAY, D. P.: Studies on energy expenditure of rickshaw pullers. [online]. Indian Journal of Physiology and Pharmacology. 1959, Vol. 3, Issue 3, pp. 147–160. Available from WWW: https://ijpp.com/IJPP%20archives/1959_3_3/1959_3_3_toc.php1BLAYA, J. A.; HERR, H.: Adaptive Control of a Variable-Impedance Ankle-Foot Orthosis to Assist Drop-Foot Gait. IEEE Transactions on Neural Systems and Rehabilitation Engineering. 2004, Vol. 12, Issue 1, pp. 24–31.210.1109/TNSRE.2003.823266BAUD, R.; MANZOORI, A. R.; IJSPEERT, A.; BOURI, M.: Review of control strategies for lower-limb exoskeletons to assist gait. Journal of NeuroEngineering and Rehabilitation. 2021, Vol. 18.310.1186/s12984-021-00906-3DUCHAINE, V.; GOSSELIN, C. M.: General Model of Human-Robot Cooperation Using a Novel Velocity Based Variable Impedance Control. In: Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (WHC’07). Tsukuba, Japan, IEEE, 2007, pp. 446–451.410.1109/WHC.2007.59HAISMAN, M. F.; WINSMANN, F. R.; GOLDMAN, R. F.: Energy cost of pushing loaded handcarts. 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ORIGINAL_ARTICLEBattery Electric Vehicles (BEVs) are widely seen as one of the available options to combat increasing greenhouse gas emissions. However, these vehicles’ use is less widespread than conventional combustion engine vehicles. One reason for this is their still relatively short range and long charging times. For this reason, it is becoming increasingly crucial in BEV development to use the most accurate simulation models that allow the impact on electricity consumption to be analyzed based on changes made to individual powertrain components. To this end, the author’s dissertation deals with developing a simulation model for estimating the power consumption of a BEV powertrain, describing the definition of the efficiency parameters of the individual powertrain components. The results from the simulation model were then compared with measurements performed in a test facility. The maximum deviation of approximately 8% was measured depending on the driving cycle and parameters.https://acc-ern.tul.cz/archiv/PDF/ACC_2023_1_03.pdf2023-06-29344310.15240/tul/004/2023-1-003Energy consumptionSimulationPowertrainBEVEfficiencyTomášPetrtomas.petr@tul.cz1Technical University of Liberec, Faculty of Mechanical Engineering, Department of Vehicles and EnginesAUTHOREUROPEAN COMMISION: Transport 2050: The major challenges, the key measures. [online]. Brussels, 2011. Available from WWW: https://ec.europa.eu/commission/presscorner/detail/en/MEMO_11_1971EUROPEAN ENVIRONMENT AGENCY: Transport and environment report 2021: Decarbonising road transport — the role of vehicles, fuels and transport demand. 2022.210.2800/68902TRANSPORT & ENVIRONMENT: How clean are electric cars? T&E’s analysis of electric car lifecycle CO2 emissions. [online]. 2020. Available from WWW: https://www.transportenvironment.org/wp-content/uploads/2020/04/TEs-EV-life-cycle-analysis-LCA.pdf3RICARDO: Ricardo IGNITE 2018.1. 2018. Original WWW address not working any more: https://cdn.ricardo.com/software/media/media/resources/resources%20-%20pdfs/ignite-2018-1-new-features.pdf. WWW address with newer versions of the software: https://www.realis-simulation.com/support/software-updates/4MOHAN, G; ASSADIAN, F; LONGO, S.: Comparative analysis of forward-facing models vs backwardfacing models in powertrain component sizing. In: IET Hybrid and Electric Vehicles Conference 2013 (HEVC 2013). London, England, IET, 2013, pp. 1–6.510.1049/cp.2013.1920NREL. DriveCAT: Drive Cycle Analysis Tool. [online]. 2021. Available from WWW: https://www.nrel.gov/transportation/drive-cycle-tool/index.html6VLK, F.: Alternativní pohony motorových vozidel. František Vlk, Brno, 2004. ISBN 80-239-1602-5.7ALBATAYNEH, A.; ASSAF, M. N.; ALTERMAN, D.; JARADAT, M.: Comparison of the Overall Energy Efficiency for Internal Combustion Engine Vehicles and Electric Vehicles. Environmental and Climate Technologies. 2020, Vol. 24, Issue 1, pp. 669–680. eISSN 2255-8837.810.2478/rtuect-2020-0041DERAMMELAERE, S.; DEREYNE, S.; DEFREYNE, P.; ALGOET, E.; VERBELEN, F.; STOCKMAN, K.: Energy efficiency measurement procedure for gearboxes in their entire operating range. In: 2014 IEEE Industry Application Society Annual Meeting. Vancouver, BC, Canada, IEEE, 2014, pp. 1–9. eISBN 978-1-4799-2288-8. Print ISSN 0197-2618.910.1109/IAS.2014.6978376CRAMPEN, M.; HOMANN, J.; HAGEN, D.; BIERMANN, J. W.: Verlustleistungen von Gelenkwellen und Radnaben einschließlich Bremse. (Powerloss of Drive Shafts and Wheelhubs including the Influence of Brake) In: Reibungsminimierung im Antriebsstrang für kurz und langfristige Erfolge: ATZ/MTZ-Konferenz Reibungsminimierung. Esslingen, Germany, 2009.10