The relationship of structures and geological-building of Rudòany ore field to geotechnics features

The geostructural and geotechnical analysis was aimed at the concrete conditions of the Rudòany ore field at the Spi region, the part of the Slovak Republic. Our research results make it possible to minimalize the negative influence of moisture liquidation of the mine field from the ecological point of view. The paper is devided into followings parts: present and future moisture liquidations and their influences on surface subsidences, the theoretical principles for the geotechnical evaluation of the subsidences and application of the principles

THE ARCTIC AREA VERSUS THE WORLD IN THE FIELD OF FOSSIL FUELS

The Arctic area could represent one of the largest world powers oriented on the export of oil, natural gas and other minerals. It would provide a significant position on the international energy market at a time when the energy security is becoming the most frequent topic in international negotiations. Countries surrounding the Arctic area are becoming aware of these factors and take an action to get part of the area. Their aim is to acquire the largest area while their attention is focused on seabed of the Arctic Ocean. Presented article deals with the analysis of the Arctic region from the perspective of international law and fossil fuel reserves which are according to recent surveys located in this area. It also provides an overview of climate change taking place in this area

Strategic analysis of Alza.cz

Cílem této práce je poskytnout strategická doporučení na základě analýzy vnitřního a vnějšího prostředí společnosti Alza.cz. Práce je rozdělena na teoretickou část, kde je vysvětlen základní teoretický rámec, a praktickou část, kde jsou všechny teoretické poznatky aplikovány v praxi. V první části je podrobně rozebrána dostupná literatura z oblasti strategické analýzy, strategického plánování a tvorby strategie, z níž budou poznatky čerpány v druhé části. K provedení analýzy prostředí budou použity nástroje jako PESTLE analýza, Porterův model 5 hybných sil, Mapa konkurenčních skupin a index CR4, které budou následně využity k identifikaci hrozeb a příležitostí. K analýze vnitřního prostředí budou použity nástroje VRIO, analýza finančních ukazatelů a nakonec analýza portfolia s využitím matice GE, která umožní identifikovat silné a slabé stránky společnosti. Syntéza bude provedena pomocí nástroje SWOT, kde budou vysvětleny vzájemné vztahy mezi příležitostmi/hrozbami a silnými/slabými stránkami, na jejichž základě budou předložena strategická doporučení.Cieľom tejto práce je poskytnúť strategické odporúčania na zákalde analýzy vnútorného a vonkajšieho prostredia spoločnosti Alza.cz. Práca je rozdelená na časť teoretickú, kde je vysvetlený základný teoretický rámec, a časť praktickú, kde sú všetky teoretické poznatky aplikované v praxi. V prvej časti je do hĺbky skúmaná dostupná literatúra v oblasti strategickej analýzy, strategického plánovania a tvorby stratégie, z ktorej budú v druhej časti čerpané poznatky. Na uskutočnenie analýzy okolia budú použité nástroje akými sú analýza PESTLE, Porterov model 5 hybných síl, mapa konkurenčných skupín a CR4 index, vďaka ktorým budú následne identifikované hrozby a príležitosti. Na analýzu vnútorného prostredia bude využité VRIO, Finančná analýza pomerových ukazovateľov a nakoniec portfólio analýza pomocou GE matice, na identifikáciu silných a slabých stránok spoločnosti. Syntéza bude uskutočnená pomocou nástroja SWOT, kde budú vysvetlené vzájomné vzťahy medzi príležitosťami/hrozbami a silnými/slabými stránkami, na základe ktorej budú odprezentované strategické odporúčania.The aim of this thesis is to provide strategic recommendations based on the analysis of the internal and external environment of Alza.cz. The work is divided into a theoretical part, where the basic theoretical framework is explained, and a practical part, where all the theoretical knowledge is applied in practice. In the first part, the available literature in the field of strategic analysis, strategic planning and strategy development is examined in depth, from which knowledge will be drawn in the second part. Tools such as the PESTLE analysis, Porter's 5 Drivers model, the Competitive Groups Map and the CR4 index will be used to carry out the environmental analysis, which will then be used to identify threats and opportunities. To analyze the internal environment, VRIO, Financial Ratio Analysis and finally Portfolio Analysis using GE matrix will be used to identify the strengths and weaknesses of the company. Synthesis will be done using SWOT tool, where the interrelationships between opportunities/threats and strengths/weaknesses will be explained, based on which strategic recommendations will be presented

Theory of Similarity and Modelling in Rock Mechanics

The work describes a laboratory method of investigating the stress-strain state around horizontal mine openings (galleries) using of physical modelling. Basic results carried out of the experiments make possible to determine the value of the supports resistance q, which is required for the stabilization of the mine opening in the real conditions

Stabilitätsanalyse des sekundären Spannungszustandes in der Umgebung

Článok sa zaoberá problematikou stability dlhých banských diel, ktorá je významná aj v špecifických prípadoch líniových podzemných stavieb razených v málopevných horninách. Výskum zmien napäťovo-deformaèného stavu týchto diel bol realizovaný pomocou experimentov na modeloch z ekvivalentných materiálov. Uvedené výsledky pokusov umožňujú stanoviť hodnotu reakcie výstuže q potrebnú pre stabilizáciu podzemného diela razeného v pružno-plastickom horninovom prostred

New Inner Canalizing Technology with Vapour Hardening Material

The Liner is a composite sandwich construction using multiple layers of Owens Corning Advantex extra corrosion resistant fiberglass, forming a complex unidirectional reinforced structure. This construction achives an unmatched strenght permitting a thinner wall and therefore less reduction of the original diameter. The ring stiffness is very important. The unique design of the Liner gives a very high E-Moduls performance of 10.000 MPa which is unmatched by any other liner on the market. The longitudial reinforcement ensures complete stability troughout the length and prevent any elongation caused by the installation process. The Liner is constructed using extra corrosion resistant fiberglass. The inside of the liner is covered with a polyester veil rich of resin, forming a very smooth and glass-hard surface. In Combination with the unique post-curing at 110 °C, a very high resistance to abrasion and chemicals is achieved

From the Herľany geyser to prove sources of geothermal potential in the Košice basin

Slovakia is a watering place known in the past. A little but very benefit spa lies near the village Herľany below the foothil of the western slopes of the Slanské vrchy Mts. When mineral springs were not able to cover the consumption of the mineral waters in 1870 a well resulting in nowadays unique „ Herľany geyser“ was drilled by Viliam Zsigmondy. In the second half of the 20th century a geological prospecting on oil and natural gas realised in the Košice basin and East Slovakian Neogene basin was. Based on the results, of prospecting structural boreholes, aimed at hydrocarbon prospection, geophysical inestigation and hydrogeological investigation a geothermal potential of this part of the area was confirmed. The geothermal boreholes (GTD-1, GTD-2 and GTD-3) were drilled after 30 years after it. The results from these wells were very positive because the discharge reached 150 litres per second and the temperature of water was 126 °C on the borehole mouth.The time flies and the heasty attested geothermal source in the meantime isn´t utilized enough. The history as well as the today story is known but the perspective of this spring in the future is not clear. Possibilities of its exploitation as an alternative energy source are great but a grand investor is needed. Maybe, the EU-founds will be the only objective future for a prosperity of our followers

THE ARCTIC AREA VERSUS THE WORLD IN THE FIELD OF FOSSIL FUELS

The Arctic area could represent one of the largest world powers oriented on the export of oil, natural gas and other minerals. It would provide a significant position on the international energy market at a time when the energy security is becoming the most frequent topic in international negotiations. Countries surrounding the Arctic area are becoming aware of these factors and take an action to get part of the area. Their aim is to acquire the largest area while their attention is focused on seabed of the Arctic Ocean. Presented article deals with the analysis of the Arctic region from the perspective of international law and fossil fuel reserves which are according to recent surveys located in this area. It also provides an overview of climate change taking place in this area

Modelling of heat flow in Earths Crust

The paper deals with the modelling of the heat flow in the Earths crust. The used three-dimensional model utilises the computer environment where the rock masses are modelled by the set of basic structural elements placed in the orthogonal co-ordinate system x, y, z, while the basic structural element is a cube with a chosen size. The physical notion of the diffusion is utilised for modelling the potentials flow from places with higher value of potentials to the surrounding rock masses. With the help of coefficients of diffusion kx, ky, kz, representing the ability of transmission of the thermal energy being present in the basic structural element of the rock to the adjacent structural elements of the rock model, it is possible to model iso-tropic, anisotropic, or heterogeneous properties of the modelled rock masses, as well as the properties of spreading the heat in this environ-ment

Interdisciplinary Cooperation in the Exploration of appropriate sites for the Radioactive Waste Deposition

The article deals with the interdisciplinary cooperation in the processes of exploration of appropriate sites for radioactive waste deposits. This work is based on trends in the environmental laws for radioactive wastes. For the exploration, a knowledge about the geological structures, properties of rocks and safety manipulation with radioactive wastes are necessary. The interdisciplinary cooperation is needed with geophysics to define the particularly hazardous areas of an earthquake shaking. In this article, a method of the seismic analysis by Ricker impuls and Gabor´s function are presented