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Every cyclic geological phenomenon may sugge st a structural image of the geological time. The dynamic cycles with very long periods can characterize the whole geological time, but especially the Precambrian. The cy cles with periods between 4 and 26 Ma are useful for the temporal individualization of th e Phanerozoic and the cycles with a short periods are very representative for Cenozoic. But the Earth’s geological history also provides a good perspective over the cosmic time through a super-mega-cycle (~2.56 ...

The article deals with the utilization of electronic documentation and video presentation at the teaching on universities. The utilizatio n of the electronic study materials in PDF format with virtual interactive models enables to students not only better visualisation of the task which is being, but it enables to understand the problems and to obtain the geometrical data without their text or di mensional descriptions, too. Creation and utilization of DVD guides is the next step of the improvement of educ ational...

The present study has been carried out with the use of Remote Sensing techniques in combination with Geographical Information Systems/GIS for monitoring and protection of the environment, in the surroundings of mining areas, as well as for developing new techniques for searching for new Mn-ore deposits, in Drama area, Northern Greece. Various digital processing techniques were applied on LANDSAT-TM imagery. These techniques included differe nt methodologies, such as the “Principal Component Analysis” (PCA), вЂ...

The power plants produces hundreds tones of fly ashes yearly. From this amount is really used in the reason only 10 % with out the any treatment in the industrial production. The rest of this ashes are de posited on dumps and settling pits, that have many negative influence on the environment. Following the previous results from the extensive treatment research was proposed the waste less technology of the complex treatment and utilization of black coal fly ash. The final products of this technology are the produc...

The article deals with the kinematics analys is of crank mechanism realized by three methods followed by comparison of achieved results. The crank mechanism is the most commonly used mechanism in practice; it is the part of the various machines and almost every car. It belongs to the fundamental mechanisms whereon the kinematic characteristics of mechanism are investigated by students on FMT TU KoЕЎice with seat in PreЕЎov within the scope of Technical mechanics lessons. Ar ticle hints as the utilization of suitab...

The aim of this paper is to show the possi bilities, how effective use GIS for modelling of mineral deposits, for example of brown coal deposit NovГЎky. The work results - seam base model and seam thickness model, ash content and heat value of coal presented in the ArcGIS are an example of a modern appr oach to the processing of geological data. The form of presentation offered by GIS allows much more efficient deposit data processing and provides greater op portunities for planning and optimization mining activit...

The process of alkaline hydrothermal activation (with NaOH) of fly ash from Bulgarian coal-burning thermo-power plant “Maritsa 3” has been investigated by means of scanning electron microscopy and energy-dispe rsive X-Ray analyses. The stages of the zeolitization have been discusse d on the base of the obtained data for the morphology and composition of typical in dividual particles from th e zeolitized fly ash samples, synthesized at different trea tment duration. The influences of pre-treatment and post- tre...

According to the global movements in sustai nable development, European Parliament and Council amended Directive 76/769/EEC by Directive 2003/53/EC which prohibit, among other requirements, the marketing and use of cements and cement-containing preparations which, when hydrated, cont ain more than 0,0002 % of water-soluble hexavalent chromium, determined as percentage by mass of dry cement. This legislation is intended to minimize th e occurrence of chroma te-related allergic contact dermatitis arising from the us...

The national and international economic crisis has increased the interest in utilizing coal to produce electric or thermic energy, but that means also an increased pollution. According to the U.E. normative, Romani a’s environmental problems with the SO X, NOX, CO, CO 2 emissions from the th ermoelectric plants will be partially solved by 2012. However there will remain some important sources of pollution such as ash and breeze deposits, which have a negative impact upon the microclimate and upon all the environ...

It is proposed to process gold mine man-made wastes through ultrasonic activation of source materials in water, then in an alkaline solution with subsequent cyanidation of gold-impregnated cakes, or direct cyan idation and sorption conditioning of gold multicomponent solutions with nano-structured anionite an av erage radius of pores of which is within 600-700 Зє that contains no more than 6-8% of strong-base groups. A preliminary withdrawal of elements accompanying gold ensures obtaining of good- quality target m...

The Chah Zard Ag–Au epithermal deposit is located within an a ndesitic to rhyolitic volcanic complex in central part of Urumieh–Dokhtar Magmatic Arc (UDMA), west– central Iran. The deposit is formed in breccia bodies dominantly hosted by rhyolite porphyries. Geological field relationships s how that epithermal mineralization occurred in close association with a phreatomagmatic fracturing event, being localized in breccia cements, and formed as disseminated sulfides in the matrix of the more permeable breccia...

Iran is a country with an area of 1,648,198 Km 2 in the Middle East. When it comes to sun, there are 300 days of pure high UV sunshine in 95% of the country. There is a triangular great desert from center to the East of Iran, which due to its position receives a large amount of solar energy. Because this area is enclosed by the high ridge Alburz Mountains in the North, the Zagros Mountains in the West and the Makran Mountains in the East, there is no climate variability and also its geographi cal and environmental...

Costs are present in many daily decisions they take managers from lower hierarchical levels, but especially importa nt for strategic decision taken at top management level. The very adoption of certain strategies fo r the enterprise is based on analytical considerations which require methods of ec onomic and financial evaluation of projects, methods that can not be imagined outside costs. Allocation of resources to the enterprise are based on estimated costs, just as they and replacement of assets. Computation of ...

Some compounds especially sulphur dioxide (SO2) is considered as typical indicators of the urban air quality. To inform decisions re garding, for instance, the protection of public health from elevated SO 2 levels in Balikesir, high-resolution maps are necessary. Therefore, the main objectives of this paper were to: (1) analyze th e spatial distribution of SO2 levels using geostatistical techniques; (2 ) incorporate this in formation in a GIS to produce accurate SO 2. Geostatistics provides useful technique to get...

The object of this study is to locate the zones of groundwater discharge into the eastern shores of the Dead Sea. To achieve this object the electrical conductivity-temperature with a depth method was used. This study show ed that the Dead Sea divides into two layers relating to the electrical conductivity and temperature with depth. The upper layer subdivided into two members. The upper member extends from the sea surface down to a depth of 15-25 m. The lower member extends from a depth of 15-25 m to 40 m and it ...

A various range of remote sensors are currently available to help to explore a landscape and other natural components. The mainly part of this field is based on a small format aerial photographs (SFAP) taken from a small aircraft. The scienti fic benefit arises from the combination of knowledge achieved by conventional field work and the visual information gleaned from SFAP. In monitoring studies, temporal changes of forms and patterns give additional clues. The coupling of field data and interpretation of SFAP...

This research will address the important pr oblem of waste management sector for the Municipality of Prishtina. Rapid urbani zation has made solid waste management a serious problem today. The perception of the people has always been that it is a responsibility of the local government bodies. Local authorities are bound to keep their area clean. For some time now, many municipa lities, city corporations and industries have been experimenting with several innov ative and participatory methods of Reduce, Reuse and R...

A trans-regional project, WasteKIT, devoted on the economic development via waste management, based on knowledge and integration has been presented. The project puts together 18 different waste management related organizations from Sofia region (Bulgaria), Emilia Romagni region (Italy), Am sterdam region (Netherlands), Yorkshire and Humber (Great Britain) including resear ch and education organizations, SMEs and local authorities in order to e xpand the ambitions of region s with respect to regional economic devel...

Ground vibrations arising from excavation with blasting is one of the environmental problems in mining industry. The prediction of ground vibrations and the realization of controlled blasting based on this prediction have a great importance in order to minimize the environmental effects of blasting. The purpose of this study is to analyze the ground vibrations induced by blasting at Akyol Quarry which selected as a test site after the determination of the geomechanical properties of the rock mass with a computer s...

In this study, the efficiency of EC/UV/TiO2 and EC/UV/ZnO coupled systems, on the decolorization of C.I. Acid Yellow 23 (AY23) as a model contaminant was compared. It was found that for the efficient decolorization of 40 mg L-1 of AY23 using steel304/Al (anode/cathode) as electrodes, with the distance of 15 mm, I = 120 A m-2, electrolyte concentration was 800 mg L-1 for both systems, but pH and initial concentrations of catalysts were 5.53, 800 mg L-1 for TiO2 and 6.29, 650 mg L-1 for ZnO systems, respectively. Th...

In Turkey in the Tuncbilek coal basin, the subject area of this study, there are gray and brown colored marl formations. As known, the test specimens shall be conditioned in such a way as to be reached to the natural water content before the strength tests, and it is preferred to use the saturated specimen in order to be representative for levels below the groundwater. It is noticed that the gray marl core samples taken from Tuncbilek were broken into parallel slices by the influence of water in less than half an ...

Mineralogical composition of mining wastes deposited in voluminous tailing impoundments around the world is the key factor that controls retention and release of pollutants. Here we report geochemical and mineralogical investigation of one tailing impoundment from Slovakia. Ore deposit RudЕ€any was exploited from the end of 19th century and at 1963 the ore started to be extracted by flotation process (barite, siderite and sulfides). Waste after flotation was deposited into one tailing impoundment, which carries ap...

Geotextiles are used commonly in domestic solid waste disposal sites as a protector filter and separator. Because, sand and silt particles included in waste leachate can fill space of gravels which are using as drainage layers. Therefore, the space of the drainage layer is bunged up with particles and it is decompose. This case is not wanted so the usage of the geotextiles has quite importance in waste disposal sites. In general, geotextile lies between waste and drainage layers and it is used to filtration. In or...

Significant efforts should be devoted to reducing waste outputs from aquaculture operations in order to lower the environmental impacts of aquaculture in many parts of the world. Since most aquaculture wastes are ultimately from dietary origin, reduction of waste outputs should first be through improvements of diet formulation and feeding strategies. The first step in the production of feeds producing less solid waste is to eliminate poorly digestible ingredients (such as whole grain or grain byproducts used as bi...

We propose a device which produces a high density cloud of spray that is consisted mostly of water micro droplets. The cloud automatically occurs when an electromagnetic pulse or/and shock wave from a close explosion matches the device. The ratio of absorbed energy of the dangerous shock wave depends on the density of the cloud and on its spreading speed as well as on the size and the mass of micro droplets. We have developed a mathematical model of physical processes in the Absorber. Numerical simulations show sa...

All materials which are rich in carbon content could be used after activation or adsorption. These materials include coal, lignite, wood, Boone, coconut shells, nut shells, rice husks, and various fruits seeds. Activated carbons obtained from these materials are usually hard and dense. Therefore they could be used in water treatment for long time without deterioration. Activated carbons used in controlling environmental pollution should have high surface area and porosity. Activated carbon is obtained by the proce...

The paper presents the evaluation of mine disasters statistics with particular reference to aerological disasters which took place in Polish coal mines from 1945 to 2008. These disasters concern the events which the death of five or more miners working in the mine underground. They were caused by: breakout or outflow of carbon dioxide, methane explosion, tremors and roof falls, explosion of coal dust, fires, heat strokes, water outflows or breakdown of mine equipment. The special attention was paid to fire prevent...

The increasing amount of poly(ethylene terephthalate) (PET) waste is a worldwide problem which has induced requirements for its recycling and reusing. PET fibres have been used as a dispersed micro-reinforcement in a cementitious matrix. The microreinforcement in the fibre reinforced concrete absorbs tensile strain and prevents formation of microcracks originating from concrete shrinkage. The present work has been aimed at studying the effects of aging PET fibres by alkali hydrolysis and temperature cycles on the ...

Concentration of Na, K, Ca and Mg in selected vegetable cultures: spinach (Spinacia oleracea), lettuce (Lactuca sativa) and parsley (Pertoselinum crispum) were analyzed. Only edible parts of the above plants were used. Metal content was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). Thermo Scientific with Echelle optical design and Charge Injection Device (CID) solid statedetector was used. Determined concentrations were within intervals: 18.44 – 85.04, 16.4 – 25.1, 2.97 – ...

Froth flotation is an effective process for separating valuable from gangue minerals. Studies show that the performance of froth flotation is affected by the froth structure, and has a strong relationship with visual information of the froth surface. The determination of the froth structure, therefore, plays a vital role for controlling the process. Extensive studies have shown that computer-based vision technology is a robust, non-intrusive and cost effective approach for monitoring and controlling of flotation c...

The risk assessment approach for the establishments concerned by the Seveso II Directive requirements can be grounded on the determination and the aggregation of 3 indexes: the gravity index, the propagation flow index and the vulnerability index. Based on the national and EU legal requirements concerning the prevention and control of major accident hazards involving dangerous substances, the paper has as main goal to present an expeditious methodology for gravity index determination as a function of the dangerous...

An information retrieval technique that could be used successfully in the E-Learning domain is provided in this article. The described system is based on a relevancefeedback scheme. It retrieves relevant documents from an information database, those documents being useful in the learning process. The proposed system is an interactive one, the human user being involved in the retrieving process.

THMs in disinfection by products are especially important because of their potential carcinogenity. In this work two different liquid-phase microextraction methods namely US EPA 551 microextraction method and German DIN 38407 standard method were compared for the determination of trihalomethanes (THMs) including chloroform (CHCl3), bromodichloromethane (CHBrCl2), dibromochloromethane (CHBr2Cl) and bromoform (CHBr3) in water samples was developed, with analysis by gas chromatographyelectron capture detection (GC-EC...

The paper deals with an evaluation of flotation application suitability in the sludge decontamination from the Cerny Prikop stream situated in the City of Ostrava (Czech Republic). Application of flotation on the given samples is highly effective and the acquired results are excellent. We used 2 conventional flotation collectors (Montanol 551, Flotakol). Flotation of organic pollutants is very effectual and more than 75 \% of hydrocarbons C10 – C40, 70 \% of PCB and 80 \% of PAH from the sediments was removed.

In this survey, analysis of statistical results of water resource has been conducted in "Bastam" study area in Semnan province. This water resource includes well, spring, kanat, divergence stream from river, dike, diversion dam and pumping station. This statistical result was conducted according to the standard forms of power ministry of Iran in the desert and the recorded information is prepared into a database, on basis of 1:50000 maps in GIS environment for spatial and descriptive analysis. In addition, by surv...

The determination of environmental contamination with natural and artificial actinide isotopes and evaluation of their source requires precise determination of concentration and isotopic ratios of actinides in environmental samples. The most conventional analytical tools used for uranium and plutonium isotope determination are liquid scintillation and alpha spectrometry, and thermal ionization mass spectrometry is still considered as the primary method for determination of plutonium isotope ratios. Inductively cou...

Volatile organic compounds (VOCs) have been known as human risk factors in urban environments, as well as primary contributors to the formation of photochemical oxidants.These compounds are a major component of atmospheric pollutants in Konya, that is a large city in Turkey. This study assessed the concentrations of seven volatile organic compounds (VOCs), including Ethylbenzene, m/p xylene, styrene , o- xylene, 1,3,5 Trimethylbenzene, 1,2,4 Trimethylbenzene and 1,2,3 Trimethylbenzene, in Konya/Turkey during the p...

Bauxite mineralizations of Seydisehir reside in western Taurides, in Konya region. Mesozoic limestones form the base of local stratigraphy. On top of these Eocene aged limestones and flysch units have precipitated. Allochthonous Paleozoic aged limestones of Hadim nappe units have moved on top of all these units. Formations of the region have undergone extensive tectonic activity. Bauxite mineralizations in the region are associated with Mesozoic limestones. They are located in karst spaces of limestones. These spa...

The paper deals with an examination of possible application of biodegradation in the decontamination of soil samples from international airport in Ostrava. The laboratory biodegradation tests were carried out with a pure bacterial culture of Pseudomonas putida, a pure laboratory culture of Rhodococcus sp, their mixture and a mixture prepared combining their media free of bacteria. The results of the paper imply that for biodegradation of airport pollutants is most suitable to apply a mixed bacterial culture of Pse...

The current climate change regulations have been investigated based on the data of 90 meteorological stations of Georgia from 1906 to 2005. It was revealed that the climate change has the mosaic character: arid landscapes became warm more quickly than humid ones, which were even cooled in many cases. The dynamics of recurrence of anomalous deviations of monthly average temperatures have been investigated.

Climate is result of effects of aero-logy phenomenal and view intermediate atmosphere in ideal area. Climate have wide meanings and cover aero-logy parameters like physical, chemical and may be biological factors and it could expressed that nowadays lot’s of different ways have been based for characterizing climate. In this research by employing Geographic Information Systems (GIS) and also Du marten \& selyaninov climatology methods, microzonation of Halvan study area, which has located in central basin of Iran...

In the present study collection rate constant (kc) was modeled as a function of the most significant operating variables which affect gas dispersion in a flotation column (i.e. superficial gas velocity, slurry density (solids\%) and frother dosage/type) using artificial neural network (ANN) and statistical techniques. Experiments were performed in an industrial flotation column (4 m in diameter and 12 m in height) in rougher circuit of a copper concentrator. RTD studies using a radioactive tracer have already conf...

Slovak republic committed to implement into legislative direction of European parliament and European Council 2006/21/ES from March of 15th of 2006. The direction contains conditions about disposal with wastes of mining industry, which changes and adds direction 2004/35/ES. This legislative required creation of complex evaluation methodology of different types of mining wastes. Tailing pond represents area for permanently or temporary deposition of mainly hydraulically consigned mud/sediment (waste). Consigned mud...

GIS enables spatial or nonspatial data to be transferred or stored into computers and various spatial, numerical, verbal analysis to be made by using this data prepared for this purpose. Although GIS has been used immersely in many fields, it hasn’t been widely used in mining. The aim of this study is to show the applicability of GIS in mining and its benefits for this field. With the help of the software developed in the scope of this study, it is aimed to plan the maps belonging to area of mining licence in th...

The paper deals with specific issues concerning the introduction of cadastre development in Romania in terms of market economy and integration in the European community. The paper addresses the historical stages of different land works, the present situation and future courses of action. Achieving accuracy in conditions of adequate infrastructure in Romania is influenced by specialized methods and apparatuses used in making observations, their processing and implementation of related documentation.

An important element in the process of construction and demolition waste (CDW) recovery is the costs, which is necessary to incur in the recycling. The transportation costs create a significant part in total costs of recycling company. This is the main reason, why is important to deal with the distribution system of waste recycling, as well. We are able to define the model of CDW recycling following the analysis of recycling systems, its elements, mutual interactions and the ways of its existing in the real condit...

In this competitive world Turkey needs well trained, highly qualified, productive, problem solver technicians for the industry. Engineers and technicians school learning are becoming voided compare to new developments. They have to improve and educate themselves permanently. As its known vocational schools are for educate people to fill in spaces between engineers and technicians in the industry. A person who graduated from these schools has to be knowledged to understand an engineer and have the skills and knowle...

The project No 17005 (2008-2010) is a correlation Subotinac locality in the global wine and gave immense larger investigation of Subotinac (The Aleksinac basin) in respect of geological research. This paper is the result of research by the project of the Ministry of Science and Technological Development No 17005 R. Serbia. Papir presented corelation results of previous prospecting and detailed geological study of the basis for a new supplementary geological and chemical-technological research oil shale in the vici...

The decolorization of Acid Yellow 42 (AY42) by Fenton and electro-Fenton processes was compared. The effect of operational parameters was studied and the desired conditions obtained in the initial dye concentration of 120 mg L-1 for H2O2/ Fe2+ ([H2O2]=800 mg L-1, [Fe2+]=0.2 mmol, pH=3) and electrolysis/Fe2+/H2O2 ([H2O2]=1100 mg L-1 , [Fe2+]= 0.5 mmol, pH=3.5 and distance of electrodes 10 mm) systems. The Fenton process proved to be more efficient and occurs at a higher oxidation rate than electro-Fenton process an...

Basing on physical model of heat exchange between human body and environment, predicted thermal load under the work site parameters, specific for deep mines, was defined in the paper. The relationships included in EN ISO 7933 standard were used for this purpose. Level of heat accumulation, degree of skin moistness, maximum volume of sweat and body dehydration were evaluated. These parameters we used to define the safe time of work under difficult climate conditions. The calculations were made in respect of acclima...