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001-es BibID:	BIBFORM108565
035-os BibID:	(cikkazonosító)e13406 (WoS)000968520300001 (Scopus)85147832924
Első szerző:	Farkas Jenő Zsolt
Cím:	A systematic review of urban green space research over the last 30 years : A bibliometric analysis / Jenő Zsolt Farkas, Edit Hoyk, Mariana Batista de Morais, György Csomós
Dátum:	2023
ISSN:	2405-8440
Megjegyzések:	Worldwide, due to rapid urbanization, the provision of urban green spaces (UGSs) has become a primary goal of urban planning. As such, research on the benefits, effects, and challenges of UGSs has gained widespread attention among scholars. This paper comprehensively analyzes three decades of UGS research and its evolution; it conducts a bibliometric analysis of approximately 4000 articles and reviews from the Web of Science platform to discover the patterns and trends characterizing UGS research over time. We found that the pioneers of initial UGS research were the United States and Canada, whereas recently the European Union and China have become the global engines of research in the field. UGS research initially focused on studying urban forests, gradually shifting toward green spaces located in inner urban areas. Early on, researchers investigated UGSs (i.e., urban forests) from an ecological perspective. However, the most current research phase focuses on the social aspects of UGSs, characterized by such keywords as environmental justice and accessibility. Furthermore, the introduction of geographic information systems (GIS) has given new impetus to the evolution of UGS research and has remained the most used technological advancement besides remote sensing techniques. As the social aspects of UGS research have gained importance, new research methods have been employed, such as machine learning, big data and social media data analysis, and artificial intelligence, most recently.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Urban green space Urban forest Bibliometric analysis Keyword cluster Keyword burst VOS Viewer
Megjelenés:	Heliyon. - 9 : 2 (2023), p. 7-14. -
További szerzők:	Hoyk Edit de Morais, Mariana Batista Csomós György (1974-) (geográfus)
Pályázati támogatás:	142121 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM117183
035-os BibID:	(cikkazonosító)e23238 (WoS)001135702600001 (Scopus)85179434554
Első szerző:	Magyar Tamás (környezetgazdálkodás)
Cím:	Improvement of N and P ratio for enhanced biomass productivity and sustainable cultivation of Chlorella vulgaris microalgae / Tamás Magyar, Bence Németh, János Tamás, Tamás Nagy Péter
Dátum:	2024
ISSN:	2405-8440
Megjegyzések:	Microalgae cultivation could contribute to the achievement of several sustainable development goals (SDGs). However, cultivating Chlorella vulgaris, like any other microalgae, is challenging due to various biotic, abiotic and process related factors that can affect its growth and biomass productivity. Nutrient availability, particularly N and P, and their ratio play a crucial role in building cellular structures and maintaining metabolic processes, determining basically the maximum achievable biomass productivity under given circumstances. The present article aims to improve the N and P ratio to enhance the biomass productivity of Chlorella vulgaris microalgae as well as to characterize the biomass growth kinetics that can be used for prediction purposes. The results showed that the nutrient solutions prepared with increased nitrate concentration (T1 - N:P = 55:1 and T3 - N:P = 28:1) promoted chlorophyll formation and significantly outperformed the control sample (BG-11 - N:P = 35:1) with 192% and 183%, leading to higher biomass productivity with 1160 mu g L-1 and 1103 mu g L-1, respectively. Moreover, a strong positive correlation was revealed (0.81) between phosphate concentration and microalgae activity rate, indicating the role of phosphorous in energy transfer, resulted in stimulated microalgae activity rates with 71.2% and 70.66% in the phosphate-increased nutrient solutions (T2 - N:P = 14:1 and T3 - N:P = 28:1). In addition, an exponential equation was introduced to characterize the biomass growth kinetics, of which the theoretically achievable maximum chlorophyll concentration (C-TAM) and the theoretical cultivation time (t(cultivation)) were determined for the tested nutrient solutions with variable N:P ratio. It was concluded, that the higher the N:P ratio, the higher the C-TAM is, nevertheless the absolute concentration of these nutrients need to be considered as well. The introduced two key parameters could provide valuable information for decision makers regarding the optimization of growth conditions, nutrient supplementation, and harvesting, additionally decreasing the production costs and making the cultivation cycles more effective and sustainable.
Tárgyszavak:	Műszaki tudományok Agrárműszaki tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Sustainability Microalgae Biomass productivity Growth prediction N:P ratio
Megjelenés:	Heliyon. - 10 : 1 (2024), p. 1-14. -
További szerzők:	Németh Bence Tamás János (1959-) (környezetgazdálkodási agrármérnök) Nagy Péter Tamás (1970-) (vegyész)
Pályázati támogatás:	RRF-2.3.1-21-2022-00008 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM109902
035-os BibID:	(cikkazonosító)e14550 (WoS)000970715700001 (Scopus)85150024708
Első szerző:	Török László (szakközgazdász)
Cím:	Ambivalent changes in the correlation of energy consumption and economic growth in the member states of the European Union (2010-2019) / László Török
Dátum:	2023
ISSN:	2405-8440
Tárgyszavak:	Társadalomtudományok Közgazdaságtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Heliyon. - 9 : 3 (2023), p. 1-10. -
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