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001-es BibID:	BIBFORM096577
035-os BibID:	(cikkazonosító)2398 (WoS)000707863600001 (Scopus)85115926835
Első szerző:	Kovács Sándor (matematika tanár)
Cím:	Global Food Security, Economic and Health Risk Assessment of the COVID-19 Epidemic / Sándor Kovács, Mohammad Fazle Rabbi, Domicián Máté
Dátum:	2021
ISSN:	2227-7390
Megjegyzések:	This study addresses the complexity of global pandemic (COVID) exposures and explores how sustainable development relates to economic and health risks and food security. Multiple factor analysis (MFA) is applied to compute the links among blocks of variables, and results are validated by random sampling with bootstrapping, exhaustive and split-half techniques, and analysis of variance (ANOVA) to test the differences of the MFA factors within the different stages of competitiveness. Comparing the MFA factors suggests that higher competitiveness is correlated with better food security and natural resilience and the tremendous economic downturn; the most competitive countries have lower exposures to health risks. In addition, the risk of pandemics appears to be lower with well-established public health care (HC) system services and good health for the population. The study also underlines that the economic and health systems are unfortunately inadequate to deal with a crisis of this magnitude. Although the countries least affected by the epidemic are the most competitive, they cannot protect people and the economy effectively. Formulating appropriate global responses is a challenge, but the results may lead to more nuanced findings regarding treatment policies that can be addressed at the country level.
Tárgyszavak:	Társadalomtudományok Közgazdaságtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk competitiveness economic risk food security health risk MFA method risk assessment sustainable development
Megjelenés:	Mathematics. - 9 : 19 (2021), p. 1-16. -
További szerzők:	Rabbi, Mohammad Fazle (1985-) (közgazdász) Máté Domicián (1976-) (közgazdász, informatika tanár)
Pályázati támogatás:	Bolyai János Ösztöndíj Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM016082
Első szerző:	Pokorádi László (gépészmérnök)
Cím:	Sensitivity investigation of fault tree analysis with matrix-algebraic method / László Pokorádi
Dátum:	2011
Megjegyzések:	The Fault Tree Analysis (FTA) is a systematic, deductive (top-down type) and probabilistic risk assessment tool which shows the causal relations leading to a given undesired event, referred to as the "Top Event" (TE). The events, which cannot be subdivided, are called the Basic Events. Fault Tree diagram displays the undesired state of the investigated system (top event) in terms of the states of its components (basic events). The Fault Tree Analysis is a graphical design technique main result of which is a tree, a dendritic graph. Probabilistic Fault Tree Analysis (PFTA) is a quantitative analysis method used to calculate the probability of Top Event from given failure probabilities of system components. The objective of the sensitivity analysis is to show how the change in any system parameter in uences the resultant reliability value of the whole system. The main aim of this study is to elaborate an easy-used algorithm for setting-up of Linear Fault Tree Sensitivity Model (LFTSM). This modular approach process uses matrix-algebraic method based upon the mathematical diagnostic modeling of aircraft systems and gas turbine engines. The paper shows the adaptation of linear mathematical diagnostic modeling methodology for setting-up of LFTSM and its possibility of use to investigate Fault Tree sensitivity by a demonstrative example.
Tárgyszavak:	Műszaki tudományok Gépészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban Reliability Availability Maintenance Sensitivity Analysis
Megjelenés:	Theory and applications of mathematics and computer science. - 1 : 1 (2011), p. 34-44. -
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM037660
Első szerző:	Portik Tamás (matematikus)
Cím:	Development of fuzzy supplier-rating by trapeze fuzzy membership functions with trigonometrical legs / Tamás Portik, Tamás Varga
Dátum:	2011
ISSN:	2067-2764
Megjegyzések:	In every fields of industry, suppliers create the elements for the final products of OEM (Original Equipment Manufacturer), which means, suppliers "define" the quality of the final products via the quality of elements. Due to this, the continuous evaluation of supplier performance can be one of the most effcient risk assessment tools to identify weakness in early stages, make the possibility to implement corrective actions in time. The paper offers new development of supplier-rating based on fuzzy set theory where trapeze fuzzy membership functions are used with trigonometrical legs. This investigation is made for providing better rating by the authors. This interpretation is more effective and correct of course in point of view of manufacturing.
Tárgyszavak:	Műszaki tudományok Gépészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban Supplier evaluation fuzzy set theory quality management set-transition
Megjelenés:	Theory and applications of mathematics and computer science. - 1 : 2 (2011), p. 56-70. -
További szerzők:	Varga Tamás (1984-) (gépészmérnök)
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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