Search in Publications

Found 6289 publications

The fight against financing terrorism: New challenges and developments in Hungarian law

Péter Nyitrai Gabor Kovacs

Publication Name: Acta Juridica Hungarica

Publication Date: 2014-01-01

Volume: 55

Issue: 3

Page Range: 236-260

Description:

No description provided

Open Access: Yes

DOI: 10.1556/AJur.55.2014.3.2

Relationship between product attributes and intransitive preferences

Tamás Tarján Zoltán Veres Petra Platz

Publication Name: Investigaciones Europeas De Direccion Y Economia De La Empresa

Publication Date: 2014-01-01

Volume: 20

Issue: 2

Page Range: 102-108

Description:

Consumers are thought to be rational in their choices. But sometimes their choices comprise intransitivi-ties. Current paper presents a mathematically supported experimental study of consumers' intransitivepreferences concerning product attributes. We used a personalized experimental design developed on thebasis of Q methodology to maintain subjectivity. In our experimental study we are investigating intran-sitivity occurring in participants' preferences during selection between simple, medium complex, andcomplex products. By the Q method we gain the same number of less important (middle level) attributedimensions for all participants. The participants' task is to make pairwise comparisons of preferencebetween specific realizations of each product group. Since conjoint analysis is based on the measu-rement and testing of consumer preferences, reassessment of the phenomenon may have impact onmarketing research methodology. This research is to test an experimental design which-with someadjustment-could be able to measure revealed preferences in a more precise way.

Open Access: Yes

DOI: 10.1016/j.iedee.2014.01.002

Modeling integrated sustainable waste management systems using fuzzy cognitive maps and systems of systems concepts

No authors available

Publication Name: Civil-Comp Proceedings

Publication Date: 2014-01-01

Volume: 105

Issue:

Page Range: Unknown

Description:

Movement towards more sustainable waste management practice has been identified as a priority in the whole of the EU. The EU Waste Management Strategy's requirements emphasizes waste prevention; recycling and reuse; and improving final disposal and monitoring. Integrated waste management systems can be defined as the selection and application of suitable and available techniques, technologies and management programs to achieve waste management objectives and goals. As a result of the complexity and uncertainty occurring in sustainable waste management systems, the fuzzy cognitive map method is used with the combination of the bacterial evolutionary algorithm to support the planning and decision making process of integrated systems. Since the fuzzy cognitive map method is formed for a selected system by determining the concepts and their relationships, it is possible to quantitatively simulate the system considering its parameters. Several techniques were used in order to produce the input data of the simulation process. The goal of this paper is to present the process of data production.

Open Access: No

DOI: DOI not available

Investigation of confinement effect by using the multi-level shear box test

No authors available

Publication Name: 10th International Conference on Geosynthetics, ICG 2014

Publication Date: 2014-01-01

Volume:

Issue:

Page Range: Unknown

Description:

The stabilisation and reinforcement of crushed stone aggregate in infrastructural applications using geogrid reinforcement is based on the phenomenon called the "interlocking effect". Through shear interaction of the aggregate with the geogrid, the aggregate is laterally restrained and tensile forces are transmitted from the aggregate to the geogrid. This interaction helps reducing lateral movement of the aggregate and optimises road/track performance. It is well known that this strengthening effect depends on several influencing factors. It is still difficult to quantify the true reinforcement efficiency with regard to the limit of the lateral restraint effect (or confining resistance) over the depth of the aggregate layer being placed on top of the geogrid. To be able to quantify the confining resistance efficiency of geogrids over the depth of the installed aggregate layer a laboratory test was developed (Multi-level shear box test) which allows measuring the shear resistance as a function of the distance from the geogrid layer (in vertical direction). This paper will describe the methodology of the so called "Multi-level shear box test" as well as the results of the confinement efficiency of different type geogrids in combination with railway ballast.

Open Access: No

DOI: DOI not available

Fuzzy signature structure-based finite-state machines in a residential building renovation procedure

No authors available

Publication Name: Civil-Comp Proceedings

Publication Date: 2014-01-01

Volume: 105

Issue:

Page Range: Unknown

Description:

Twenty years after the transition to the market-based housing sector the overall physical condition of pre-war urban-type residential houses remained below standard in Hungary. Among other factors, the fragmented ownership structure (at present, the capital-scarce former tenants constitute the stakeholders' community), and the given physical condition of the residential houses has resulted in difficulties in maintenance and repair. The options in the renovation process are limited by financial capabilities, however, the essential problem with maintenance originates from the unprofessional approach in decision-making. Although several decision-support tools exist that may help the stakeholders' communities, some properties of these tools make them unsuitable, or, as in the case of the facility management systems, their application may result in oversized expenses with needless functions. As a combination of the fuzzy signature structure and the principles of finite-state machines a new formal method is proposed for generate a tool for the supporting stakeholders' decisions in the building rehabilitation process, concerning necessity, cost efficiency and quality. With the support of information obtained from building diagnostic surveys, technical guides and contractors' billing databases an optimized renovation protocol is proposed.

Open Access: No

DOI: DOI not available

Sensitivity and validity of the fuzzy signature based evaluation of residential building conditions

Ádám Bukovics István Harmati L. T. Kóczy

Publication Name: Civil Comp Proceedings

Publication Date: 2014-01-01

Volume: 105

Issue: Unknown

Page Range: Unknown

Description:

The characteristics and the status of the existing stock of residential buildings are extremely important for the national economy of all countries including Hungary. Formerly some methods and approaches to formally tackle and evaluate individual buildings based on available records and expert reports were formulated. These methods are suitable for the evaluation and ranking of residential buildings and make it easier to complete the status assessment and decision support for further utilization. A mathematical analysis has been conducted to identify the sensitivity of the calculated final results in the case of the applied fuzzy signatures related to the changes of the membership values at the leaves (the end nodes of a graph). This paper briefly presents the methods, then it investigates the validity of these results taking into consideration the possible subjective discrepancy and certainty in the evaluations.

Open Access: Yes

DOI: DOI not available

Integrated robust control design for in-wheel-motor vehicles

No authors available

Publication Name: FISITA 2014 World Automotive Congress - Proceedings

Publication Date: 2014-01-01

Volume:

Issue:

Page Range: Unknown

Description:

The paper proposes a multi-layer supervisory architecture for integrated control systems in road vehicles. The role of the supervisor is to coordinate active control components and provide priority among them. The supervisor has information about the current operational mode of the vehicle and it is able to make decisions about the necessary interventions into the vehicle components and guarantee the reconfigurable operation of the vehicle. The decisions of the supervisor are propagated to the lower layers through predefined interfaces encoded as suitable scheduling signals. The contribution of the paper is the application of the LPV methodology in a design case study in which an integrated control of four wheel independently-actuated electric vehicle with active steering system is developed.

Open Access: No

DOI: DOI not available

Game-based logistics tuition efforts in higher education

No authors available

Publication Name: Proceedings of the European Conference on Games-based Learning

Publication Date: 2014-01-01

Volume: 2

Issue:

Page Range: 496-502

Description:

Logistics is one of the most powerful sources in business today. It is the key to open markets, to satisfy customers, to create sustainable supply chains and smart cities. As logistics are getting more and more into most companies'spotlight, there is a constantly growing need for qualified and well-trained experts. While logistics as a discipline went through a complete metamorphosis during the past few decades, related secondary school and university curriculums have mostly remained unchanged, and universities are seldom able to fulfill the needs of the rapidly changing market. The purpose of this study is to show how our game- and simulation-based environment may support the development of logistics tuition by concentrating on all three learning domains of Bloom's taxonomy, by providing hands on experiences and by being deeply rooted in everyone's natural learning process.

Open Access: No

DOI: DOI not available

On the control of a vehicle dynamics problem

Tihamér A. Kocsis Adrián Németh Zoltán Horváth

Publication Name: 2014 IEEE International Electric Vehicle Conference Ievc 2014

Publication Date: 2014-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

In this paper we present an approach to find the controlled invariant sets of a nonlinear dynamical system. Our method explores the state space and determines the set of those initial values where the system can be stabilized with a bounded control function. A continuous closed-loop feedback rule can also be obtained from this procedure. We illustrate the numerical results of our method on a problem describing the behaviour of actuators controlling the lateral dynamics of a vehicle.

Open Access: Yes

DOI: 10.1109/IEVC.2014.7056192