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The relationship between mining and segregated areas in Pécs
No full textThe mining industry located in the Mecsek Hills has played a decisive role in the life of Pécs, which developed into an industrial settlement in the 19th century. Although the extraction of raw materials was discontinued in the last Pécs mine in 2004, the mining industry as a mental and built heritage still remains. Smaller estates, characteristic colonies of the early years of mining, have been significantly re-evaluated. The parts of the city built near the previous workplaces, far from the center, serve as the residence of people with the lowest income. The majority of approximately 4 000 municipal rental-housing units belong to this type of environment. Therefore, the future of the former mining colonies is crucial for the local government
Quality of the bottom sediments in the area affected by mining activities
No full textThe remains of human activities may be seen in several places of the landscape in positive or negative form. Probably the most common phenomenon that fundamentally impacts the country is mining activity. The environmental problems caused by mining have attracted a great deal of research attention and led to development of numerous sediment heavy metal contamination assessment methods, including the index method, the dynamic method, the synthesis methods in chemistry, ecology and toxicology, etc.
This research was undertaken in order to determine and analyze selected heavy metals present in sediment samples collected from different sampling localities inside and around water reservoir Ruzin, Slovakia. Reservoir and its inflows are located in the vicinity of region with historical Cu, Fe, Ag, Au-deposit, which was exploited from the 14th century to 1990 and currently causing environmental burden. For the determination of sediments quality different methods (XRD and XRF analysis) have been used.
Based on the obtained data of analysis, potential ecological risk indices were used to study the pollution status of heavy metals in sediments and assess their potential ecological risk to environment.
The calculated potential ecological risk indicates the level of water environment pollution by heavy metals in the sampling localities in the studied area
Effects of physical treatment of hemp fibers on fiber structure and biocomposite properties
No full textThis article concerning natural cellulose fibers as reinforcement in composite materials in civil engineering. In this paper, the attention is given to industrial hemp specifically to the woody part of hemp plant called hemp hurds. The properties of natural fibers are mainly determined by the chemical and physical composition, such as structure of fibers.
The objective of presented research is to characterize raw and physically treated hemp fibers using Fourier transform infrared spectroscopy method. These natural fibers were used as filler into biocomposites and MgO-cement was used as alternative binder. Physico — mechanical properties (compressive strength, thermal conductivity, absorbability) of prepared composites were determined
Neue Wege der empirischen Verfassungsgerichtsforschung am Beispiel des Bundesverfassungsgerichts
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The Baron József Eötvös Collegium as an elite teacher training institute. The analysis of the admitted members between 1895 and 1950
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Effect of long-term loading on timber load-bearing elements
No full textThe paper presents results of exceptional experimentation, which focuses on the long-term loading of timber beams. The uniqueness of the research is given by real dimensions of samples and by the term of loading over one year. In the frame of investigation four currently often used timber girders had been investigated. The aim was to observe the time dependence of deflections over time. According to deflection curves the approximations for simulating the final deflection at the end of structure’s lifetime had been defined. The obtained creep coefficients were compared with the values listed in the valid standards