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001-es BibID:	BIBFORM110715
035-os BibID:	(cikkazonosító)6759 (Scopus)85156120109 (WoS)000979573600001
Első szerző:	Czuczor Krisztina (geográfus,társadalomföldrajz)
Cím:	The Comprehensive Analysis of the Network of Superstructure Based on Territorial Characteristics of Accommodation and Food and Beverage Service Providers Considering the Financial Crisis and COVID-19: The Case of Bihor County, Romania / Krisztina Czuczor, Gábor Kozma, Zoltán Dorogi, Tianyi Li, Zsolt Radics
Dátum:	2023
ISSN:	2071-1050
Megjegyzések:	This study presents the territorial differences in structure of functioning accommodation and food-and-beverage service providers by their distribution based on registered field of economic activity and financial data on the level of local governments within Bihor County that were classified into four potential destination types. Furthermore, the aim of the research is to identify the concentration of business activities based on their turnover in proportion to the population on the level of local governments using the Hoover-index method for the period of 2005?2020. Lastly, another aim is to examine the efficiency of these hospitality service providers using the Hoover index on their sales revenue in proportion to their labor force between 2005 and 2020. The time frame enabled the examination of the effects of two critical incidents: the financial crisis of 2008 and COVID-19, which impacted the activity of the examined firms in hospitality. As a result, both group of service providers showed a significant increase in number of entities, turnover, and average annual number of employees after 2014. That trend was intensively interrupted by COVID-19, which was not the case for the period of financial crisis. The significance of Oradea and S©anmartin were present as central areas regarding business activities of the examined fields, thus crucially influencing the trends of the county. In the case of territorial inequalities, the two categories showed differing trends, as in the case of efficiency, although lodging services proved to show higher territorial inequalities but better performance.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk territorial development tourism destination types Bihor County Hoover index COVID-19 financial crisis
Megjelenés:	Sustainability. - 15 : 8 (2023), p. 1-28. -
További szerzők:	Kozma Gábor (1966-) (geográfus) Dorogi Zoltán (1986-) (okleveles földrajztanár - történelemtanár) Li, Tianyi (1991-) Radics Zsolt (1976-) (történész, geográfus)
Pályázati támogatás:	New National Excellence Program Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM100975
035-os BibID:	(cikkazonosító)329353 (Scopus)85127005304 (WOS)000774546500001
Első szerző:	Heba Marey
Cím:	Effects of Using Green Concrete Materials on the CO2 Emissions of the Residential Building Sector in Egypt / Heba Marey, Gábor Kozma, György Szabó
Dátum:	2022
ISSN:	2071-1050
Megjegyzések:	Increasing the rate of construction material consumption has caused significant environmental problems in recent decades, especially the production of ordinary Portland cement (OPC), which has been associated with 8% of the world's human CO2 emissions and is considered the leading binder of concrete. This study aims to investigate the effects of substituting conventional concrete (CC) material with green concrete (GC) in the non-structural concrete works of a residential building in New Borg El-Arab City, Egypt. It attempts to establish what the effects are of using GC on cement, natural aggregates, and CO2 emissions in the design phase. By using a design-based solution (DBS), we began with redesign, reduce, reselect, reuse, and recycle strategies to find an optimal solution for applying recycle aggregate concrete (RAC) as a replacement material in selected building parts, such as the internal floor, external sidewalk, entrance steps, and wall boundary. AutoCAD software and 3Dmax were used to modify the original design and obtain two design references with four different scenarios. Comparative analyses were applied to investigate the effects of different concrete materials. The results show a reduction of about 19.4% in cement consumption in terms of the total concrete of the building and a 44.5% reduction in CO2 emissions due to the reduction of cement in specific building parts. In addition, this solution decreased natural coarse aggregate (NCA) consumption by 23.7% in the final concrete. This study recommends that GC materials close the loop of cementitious material consumption to reduce environmental impacts and achieve sustainability in the Egyptian building sector.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Sustainability. - 14 (2022), p. 1-22. -
További szerzők:	Kozma Gábor (1966-) (geográfus) Szabó György (1964-) (geográfus, egyetemi tanár)
Pályázati támogatás:	TKP2021-NKTA-32 Egyéb
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat DOI
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Saját polcon: