a borítólapra  Súgó epa Copyright 
Ybl Journal of Built EnvironmentVol. 3. Issue 1-2. (Dec. 2015.)


  • Anna Adorján :
    Success and Applied Tools in Post-industrial Rehabilitations5-15en [953.66 kB - PDF]EPA-02446-00005-0010

    Abstract: The problem of brownfields has become an increasingly important issue in Hungary – these urban areas have great potential for reuse, presenting a major challenge for landscape architects. As a landscape designer and urban planner, in this paper I am trying to answer the question why certain rehabilitated site work better than others, what the strengths of one or the other are. In search of sustainability in brownfield rehabilitations, I am analysing 5 selected post-industrial sites, and compare them with the undergoing rehabilitation of the Ózd Steel Works.

    Keywords: Brownfields, transformation, reuse, urban landscapes, case study approach

  • István Vokony ,
    Balázs Bonda ,
    Attila Talamon ,
    Máté Nagy ,
    Gergő Holló :
    Advancing Opportunities in Renewable Energy Production16-25en [513.85 kB - PDF]EPA-02446-00005-0020

    Abstract: The organization - WEC Hungarian Young Professionals in Energy (HYPE) - in line with WEC’s (World Energy Council) visions aims for the dissemination of the principle of sustainable energy development in Hungary. The HYPE’s goals are to represent the Hungarian energy sector’s viewpoint at national, regional and international events; to introduce and evaluate the key energy issues by preparing studies; and to foster the development of future energy professionals. Sustainable development and the strongly related secure supply is one of the most important questions arise among energy engineering issues. One of the first answers for the above complex problem is renewable energy sources. To achieve success, that is to integrate renewable systems, it is essential to design, control and support engineering and financial background of electrical engineering structures. (The question is even more important for Hungary, where neither energy nor financial resources are abundant at all.) The long term energy politics of the European Union aims to provide well-being for its citizens. It can be derived to several sub-notions which the EU would also like to support therefore, such as the appropriate operation of the economy, access to electric energy for both households and corporate consumers on reasonable prices and attention to environmental protection and sustainable growth in the meanwhile. As of the above mentioned goals, the EU is committed to maintain the Europe 2020 strategy (20-20- 20 initiative) which aims to reduce green-house gas emission by 20%, increase renewable energy sources to 20% (from 8.5%) and increase energy efficiency by 20% until 2020. The EU has launched several actions to achieve the 20-plans. Integration of electricity markets, development of networks and establishing investment capital is in progress. In the followings a chronology and overview will be presented to give a better understanding the aims, subsidy systems and energy politics’ targets. The study of WEC Hungarian Young Professionals in Energy brings opinion on the National Action Plan as well which is especially recommended to our readers.

    Keywords: Renewable Energy, Production, Energy Policy, HYPE, WEC, Hungary

  • Gergely Mészáros :
    Auditing Community Software Development26-33en [126.54 kB - PDF]EPA-02446-00005-0030

    Abstract: In accordance with European efforts related to Critical Information Infrastructure Protection, in Hungary a special department called LRL-IBEK has been formed which is designated under the Disaster Management. While specific security issues of commercial applications are well understood and regulated by widely applied standards, increasing share of information systems are developed partly or entirely in a different way, by the community. In this paper different issues of the open development style will be discussed regarding the high requirements of Critical Information Infrastructures, and possible countermeasures will be suggested for the identified problems.

    Keywords: Open Source, Critical Information Infrastructure, software security

  • Popescu Mara ,
    Zsuzsanna Tasnádi :

    Abstract: The revival of earthen architecture in the last thirty years has allowed, finally, a project flowering compelling challenges facing society in the XXI century. This earthen modern architecture is determined by the environmental quality of the material: energetic, economical (material widely available) and aesthetical. This new architecture meets also a return to logically reasoned and reasonable by upgrading local resources, not only material available in situ, but also of knowledge and human resources replies architectural and construction in the territories and people they inhabit

    Keywords: vernacular architecture, Central and Eastern Europe, earthen buildings

  • Csaba Fogarassy ,
    Bálint Horváth :

    Abstract: Regarding the aspects of climate policy, the building sector in Hungary is one of the best performing industries. This means that the GHGs (Greenhouse Gasses) the sector emits can be decreased more effectively and at less cost than in the case of other sectors. This is no surprise in the European Union, since there is a continual demand on behalf of society to develop old and outdated buildings, thus modern technological solutions also inherently result in operating efficacy. The ‘climate policy targeted’ development of the built environment based on EU funds is thus one of the most popular developments amongst European Union Member States. Therefore, the aim of the present study is to assess the climate policy effects of the presently preferred strategy approach(es) between 2020 and 2030.

    Keywords: building renovation, climate innovation, national climate policy, EU ETS, green building sector, zero energy building

  • Zsuzsanna Putnoki :

    Abstract: The article starts with a brief insight into the history of climate change, with a scope on the international and legal aspects of ever-changing regulations. The regional level is in the article is The European Union, as the only regional economic integration organization under the Kyoto Protocol. It deals with the United Nation’s international agreements like UNFCCC its Kyoto’s Protocol and the Post-Kyoto era. It also analyses the EU’s system in the climate change law with correspondence the international rules. Comparison between international and regional legislation in the climate change is used as a tool of analysis. Finally an insight is given into a special field in the climate change, the build environment, reflecting on the related United Nation’s recommendation and the EU’s regulation.

    Keywords: Climate change regulation, UNFCC, Kyoto Protocol, Post-Kyoto era, European Union, built environment in climate change

  • Eszter Horváth-Kálmán :
    In-situ Measurements in Overconsolidated Clay68-76en [863.44 kB - PDF]EPA-02446-00005-0070

    Abstract: The study is about the general genesis process of overconsolidated soils, as well as the effects of the overconsolidated ratio to structures. It will demonstrate the possible methods for the determination of the values of overconsolidated ratio and of earth pressure at rest and of the other soilphysical parameters; further, the processing of measurement results, through which the values of OCR (Overconsolidated ratio) and of λ0 (Earth pressure at rest) and of c, E soil-physical parameters (friction angles, cohesion and Young modulus) in the Kiscelli Clay Marl have been determined by Selfboring Pressuremeter.

    Keywords: In-situ measurement, Selfboring Pressuremeter, soil-physical parameters, overconsolidated clay

  • Özgül Yilmaz Karaman ,
    Mine Tanaç Zeren :

    Abstract: Wooden material is described as the oldest construction material along with stone. In the historical process, especially for the buildings of shelter, timber construction components are seen to be used as primary and indispensable structural system components in different geographies of the world as well as Anatolia. This paper focuses on timber-frame structures of four different settlements from Western Anatolia. It is aimed to analyze the traditional techniques, in order to transmit our cultural heritage to the next generations, as well as obtaining some data on construction techniqes to be used for creating alternative solutions to the house production of today.

    Keywords: Traditional Turkish Houses, Timber Structures, Traditional Construction Techniques, Timber Housing Technology, Western Anatolia

  • Gyula Nagy :
    Bracing Zonohedra With Special Faces88-95en [335.41 kB - PDF]EPA-02446-00005-0090

    Abstract: The analysis of simpler preliminary design gives useful input for more complicated threedimensional building frame structure. A zonohedron, as a preliminary structure of design, is a convex polyhedron for which each face possesses central symmetry. We considered zonohedron as a special framework with the special assumption that the polygonal faces can be deformed in such a way that faces remain planar and centrally symmetric, moreover the length of all edges remains unchanged. Introducing some diagonal braces we got a new mechanism. This paper deals with the flexibility of this kind of mechanisms, and investigates the rigidity of the braced framework. The flexibility of the framework can be characterized by some vectors, which represent equivalence classes of the edges. A necessary and sufficient condition for the rigidity of the braced rhombic face zonohedra is posed. A real mechanical construction, based on two simple elements, provides a CAD prototype of these new mechanisms.

    Keywords: rigidity, bar any joint framework, zonohedra, bracing, optimization