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Publications - 6515

Thermal impact assessment with hydrodynamics and transport modeling

Viola Somogyi Viktor Sebestyén Anikó Zseni Zoltán Papp Endre Domokos

Publication Name: Energy Conversion and Management

Publication Date: 2015-11-01

Volume: 104

Issue: Unknown

Page Range: 127-134

Description:

While the number of installed geothermal heat pump systems is rising legislation is not prepared to address the issues concerning thermal impact. The aim of this paper is to model the effects of geothermal heat pump systems installed to shallow geothermal reservoirs in sedimentary formation based on the results of a real system in order to show the magnitude of the thermal affected zone. The system examined is a standalone geothermal heat pump with a production and an injection well-being able to produce a maximum of 3.4 m3/h groundwater. The thermal impact determined by simulation was 35 m for the standalone system. Two scenarios were considered to define the impact of two neighboring open-loop systems on each other. The results show that if two systems are to be installed on the same reservoir the minimum distance should be 55 m. That indicates that in case of designing systems installed to similar hydrogeological environment should consider the change in the water table and increased thermally affected zone if other groundwater heat pumps are in the area.

Open Access: Yes

DOI: 10.1016/j.enconman.2015.04.045

Occurrence and distribution of polycyclic aromatic hydrocarbons in surface water of the Raba River, Hungary

István Vass Andrea Szabo´ Nagy János Szabo´

Publication Name: Journal of Environmental Science and Health Part A Toxic Hazardous Substances and Environmental Engineering

Publication Date: 2013-08-24

Volume: 48

Issue: 10

Page Range: 1190-1200

Description:

The objective of this study was to investigate the concentration level and distribution of polycyclic aromatic hydrocarbons (PAHs) in surface water of the Raba River; the largest Danube tributary in Hungary. A total of 54 water samples were collected in the period of 2008-2011 and analysed for PAHs by gas chromatography-mass spectrometry (GC/MS) method. The total PAH concentrations (sum of the concentrations of 17 individual PAH compounds) ranged from 41 to 437 ng/L with the mean value of 111 ± 69.4 ng/L. Phenanthrene and naphthalene were the dominant species in the surface water. Using TEF approaches on the mean concentration PAH data, benzo[a]pyrene and dibenz[ah]anthracene contributed the highest carcinogenic exposure equivalent. A selected number of concentration ratios of specific PAH compounds were calculated to evaluate the possible sources of PAH contamination. The ratios reflected a pattern of pyrogenic input as a major source of PAHs. The comparison of the total PAH concentrations observed for Raba River with other surface waters of the world confirmed that the Raba River could not be regarded as a contaminated river according to the levels of PAHs. © 2013 Taylor & Francis Group, LLC.

Open Access: Yes

DOI: 10.1080/10934529.2013.776455

The Legal Status of Independent Regulatory Organs and Their Place in the Hungarian State Administration

János Kálmán

Publication Name: Public Governance Administration and Finances Law Review

Publication Date: 2023-01-01

Volume: 8

Issue: 1

Page Range: 105-119

Description:

Independent regulatory organs as a type of administrative body were included among the central state administrative bodies upon the entry into force of the Fundamental Law of Hungary. The key feature of independent regulatory organs is that they also have the power to legislate within the framework of the regulatory authority’s activity; in other words, they can intervene in the relations of their administered sector through the creation of generally binding rules of conduct, which are enforced through the official activities falling within their scope of duties and powers. The characteristics of the legal status of independent regulatory organs and the components of their independence are therefore of particular importance in the system of public administration. The content and strength of their independence are not identical but are adapted to the professional content and EU and constitutional requirements of the specialised area of administration for which the Fundamental Law authorises the National Assembly to establish these bodies.

Open Access: Yes

DOI: 10.53116/pgaflr.6561

Robust reconfigurable control for in-wheel electric vehicles

Timea Fülep Andras Mihaly Zoltán Szabó Peter Gaspar Ferenc Szauter József Bokor

Publication Name: IFAC Papersonline

Publication Date: 2015-09-01

Volume: 28

Issue: 21

Page Range: 36-41

Description:

The paper presents a fault tolerant reconfigurable control method for vehicles driven by four in-wheel electric motors and a steering system. The aim of the design is to realize robust velocity and road trajectory tracking even under challenging driving conditions or actuator failures. The vehicle is operated solely with the in-wheel motors, thus steering intervention is only applied in case of skidding or a failure of an electric motor. The reconfigurable control is realized based on Linear Parameter Varying (LPV) framework, using the specific characteristics of the in-wheel motors of fast and accurate torque control. The operation of the designed control system is demonstrated in a CarSim simulation environment.

Open Access: Yes

DOI: 10.1016/j.ifacol.2015.09.501

Development of individual information technology systems of experimental vehicles

Peter Dely Istvan Lakatos Ernő Horváth Péter Kőrös

Publication Name: Saci 2015 10th Jubilee IEEE International Symposium on Applied Computational Intelligence and Informatics Proceedings

Publication Date: 2015-08-17

Volume: Unknown

Issue: Unknown

Page Range: 489-493

Description:

Two experimental vehicles were developed during the last two years in the Research Center of Vehicle Industry. The vehicles mentioned above are electrically driven and equipped with own developed computational modules. During development of the computational modules it was an important issue for us to create easily extendable systems which are easy-To-use. Different applications are realized in the two vehicles, consequently, different requirements were set up concerning our applications.

Open Access: Yes

DOI: 10.1109/SACI.2015.7208253

Basque identity and soccer

Róbert Győri Szabó

Publication Name: Soccer and Society

Publication Date: 2013-07-01

Volume: 14

Issue: 4

Page Range: 525-547

Description:

Football is regarded as one of the defining elements of the local national identity in Spain - a country with diverse historical nationalities. The game serves as the means for a nationality to dissociate from the majority-controlled state. The importance of national identities to be found on the territory of Spain is central to any worthy understanding of the history of football up to the present day, and it is especially true in the case of Basque football. Sport, and especially football, plays an important role in emphasizing the Basque national identity in all the Basque regions, and it is a special manifestation of their political beliefs. As this essay tries to argue, the game has become an integral part of Basque national culture while the football clubs and national teams have assumed political importance. The Basques have their own national teams, i.e. clubs, whose teams represent the Basque nation as also the country Euskadi. Thus, the essay aims to examine the relationships between football and Basque national identity in a historical perspective. © 2013 Copyright Taylor and Francis Group, LLC.

Open Access: Yes

DOI: 10.1080/14660970.2013.810434

The concepts of state responsibility and liability in nuclear law

Gábor Kecskés

Publication Name: Acta Juridica Hungarica

Publication Date: 2008-06-01

Volume: 49

Issue: 2

Page Range: 221-252

Description:

The legal concept and the doctrinal theory of state responsibility and liability have been in the focus of public international law for a long while. By means of domestic legislation, national law-regardless of the relevance of the international legal framework-governs the system of civil liability within the area of civil law of each state. Whereas, as opposed to the framework of civil liability governed by diverse domestic rules, exclusively a standard regulation framed at an inter-state level can secure a uniform system of state liability. The issue of state responsibility for nuclear damages raises specific questions to be examined in the framework of general international regulations (e.g., Conventions adopted within the area of nuclear law) related to responsibility and liability. Thus, answering or the clarification of these specific pivotal questions within the scope of public international law shall be our starting point, which may also entail the modification of the matter of state responsibility and liability (not only in the concerned branch of law). © 2008 Akadémiai Kiadó.

Open Access: Yes

DOI: 10.1556/AJur.49.2008.2.4

Research of vehicle parameter and sensor systems necessary to control autonomous vehicles

Dániel Pup Gabor Szakallas József Polák

Publication Name: 2018 14th IEEE ASME International Conference on Mechatronic and Embedded Systems and Applications Mesa 2018

Publication Date: 2018-08-27

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

Our long-term goal is to implement autonomous vehicle control functions on a standard vehicle. At first we started with the investigation of the steering, which is a crucial area of the control of autonomous vehicles. As a part of the program, vehicle dynamical measurements were carried out on a Nissan Leaf electric vehicle equipped with a sensor system.

Open Access: Yes

DOI: 10.1109/MESA.2018.8449146

Comparison of the reliability of SNAP foal Ig test, gamma-check e test, refractometry and electrophoresis for determining the immune status of newborn foals in the first hours of life

Luca Laura Kummer Jan Govaere Egri Borisi

Publication Name: Acta Veterinaria Hungarica

Publication Date: 2018-01-01

Volume: 66

Issue: 4

Page Range: 573-586

Description:

Twenty-eight warmblood mares were monitored during their late pregnancy in the Teaching Hospital of Ghent University. The reliability of two commercial assays (enzyme immunoassay and glutaraldehyde coagulation test) used for determining the IgG concentrations of their newborn foals was tested. Mammary secretions were examined at the time of foaling (T0), and then 4 (T1) and 8 (T2) hours after foaling by refractometry and electrophoresis. The foals' blood IgG levels were measured at T1 and T2 as a routine clinical diagnostic examination using two different commercial test kits (SNAP Foal Ig and Gamma-Check E) and T0, T1 and T2 samples were stored (at -18 °C) for immunoglobulin (Ig) determination by electrophoresis. Differences between the results of refractometry and electrophoresis occurred in 27.8% of the colostrum analyses. Some serum IgG could be detected immediately post partum (T0) in 75% of the foals, and 42.82% of the newborn foals acquired a serum concentration of more than 800 mg/dl IgG within 8 h of birth. Compared to the electrophoresis, the glutaraldehyde test scored better (85%) than the enzyme immunoassay (74%), although both are accurate and safe to use since they clearly distinguish between safe and unsafe IgG concentrations.

Open Access: Yes

DOI: 10.1556/004.2018.051