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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 main purpose of studying detailed gravity data is to provide a better understanding of the geological layers and density of topographic masses. The gravity method is a relatively cheap and very efficient, especially by using airborne techniques. Measurements of gravity provide informati on about densities of the Earth subsurface. There is a wide range in density among rock types, and therefore geologists can make inferences about the distribution of mass density. In the case of gravity surveys by using airborn...

The importance of understanding the impact of digital competence has gravitated from the global business management to traini ng activities. The world is becoming a small village by means of digital t echnological environment. Digital competency plays a key role in people’ social, edu cational and occupational lives. When digital empowerment data gathered from participant were analyzed with respect to the sub dimensions such as awareness, motivation, technical access and digital competence. Many findings may be in...

Here we try to find a compromise way of controlling a continuous variable power system by adopting a hybrid architecture in which the renewable energy sources are coupled with the classic power grid. In such an architecture, a big issue is the control algorithm for management of the energy sources, which had to be designed in such a way that the final consumer remain powered on at all times. We proposed a control algorithm which compares the input and output powers, if the input power is lower than the output, the...

Criteria of assessment of surface energy during the minerals disintegration are substantiated in the paper. Values of mechanochemistryactivation criterion of disintegration process are experimentally de fined for a number of gold-bearing ores of the Far Eastern region. It is established that directed changing of surface mineral characteristics makes possible prediction and optimization of technological parameters of ore crushing and σ parameter (surface tension coefficient) and can be a regulated parameter of cont...

The research of restoration applicability of dump rocks started about 25 years ago. However, the complex geological, pedological and hydrogeological evaluation and the evaluation of zoocoenoses of dump areas has not been elaborated yet. It is the main topic of grant project started in 2009. Main results of this research are shown in this paper. Main attention is focused to the comparison between restorated areas and areas retained for natural succession in North Western Bohemia.

The present study is oriented to the interdisciplinary approach of Stemmacantha serratuloides (Georgi) M. D ittrich alias Rhapontic um serratuloides (Georgi) Bobr., a rare plant for Romanian flora. The aim is to combine systematic botanics, chemistry analyses and Geographic Information Sy stems in order to assess the present conservation state and enhance better management measures in the county of Ia şi. The EUNIS database describes the taxon as Leu zea altaica (Spreng.) vegetating in Sarmatic saline meadows [1]

The Bor-Ulukışla Basin situated in the south-eastern part of the Tuz Gölü Basin, Central Anatolia, provide prominent example of lacu strine basins and varying assemblages of evaporite and detrital minerals. The evaporatic sedimentation formed in the central part of the basin as a shallow, saline lake syst em, where abundant ha lite and Ca-Na sulfate deposits. Sodium sulfates and also halite depos its have been explo ited from the recent salt-playa lakes in the basin. The evaporite s were deposited by related to th...

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 breccias, and...

The primary requirement for landscape regeneration affected by mining in addition to restoration of functional use is also the permanent sustainability of landscape. The paper deals with the alternative po ssibilities of using redevelopm ent procedures for general restoration of the landscape, also principles of using spontaneous succession, managed succession, forest and non-forest reclamation (including the recovery of the residential areas) on the basis of ecological and land-technical values and potential of l...

In recent years there has been globally detected the provable increase of natural disasters and extreme weather events. The climatologists explain this weather swings by global climate change. This trend is evident not only globally but also in Europe and in the Czech Republic (CR). Evidenced by data of insurance companies, the insurance companies have paid off for disaster damage in CR the amount of over 90 billion CZK (3.6 billion EUR) during past fifteen years. The Czech Insurance Association (CIA), which is th...

This paper presents research of the geophysical fields and characteristics of the Republic of Macedonia. Territory of the Re public of Macedonia consists of lithological formations of different age and composition, which present complex tectonic structure. The dynamics of this area through the geolog ical evolution, i.e. permanent present pressures from vertical and horizontal dire ction with multiple recovery and different intensity, affected today's structure units to present relicts from different segments of t...

It is aimed here to perform electrical resistivity measurements to define ground differentiation especially for 10-20 meters depth. This research purposed to evaluate the groundwater condition around Selcuk Univers ity, Law Faculty building groups in Alaaddin Keykubat campus. After the electrical resistivity tests, ground resistivity graphics were drawn for further researches on buildings’ structural analyses. The results supplied several cross-sectional 2-D resistivity graphics which were used to understand the g...

The European economy of the XXI century ap proaches new directions of orientation towards sustainability and competitiveness. The achievem ent of these goals is possible on condition that the joint efforts of the Member states’ economies are concentrated, through interdisciplinary and inter-state cooperation. The aim of this paper is to identify the common points of interest of environmental and economic approaches, based on: identifying the latest trends in European research concerning the modern concepts designe...

In this work, dissolution of Ni and Fe in sulfuric acid medium under the influence of sodium fluoride was studied. The samples of the nickeliferous late ritic ore were taken from Eski şehir (Karaçam) region of Turkey. The effects on the nickel and iron dissolution rates of stirring speed, sulfur ic acid concentration, sodium fluoride concentration, reaction temperature were investigated. In order to investigate the effects of leaching temperature range of 30-50 °C the shrinking core model was applied by using th e...

In this paper, the utilization of coal fly as h and bottle glass waste in building industry is described. In the first step of our experiment we made concrete samples with partial replacement of cement by activated coal fl y ash from Slovakian power plant Novaky. The second part of our study is focused on utilization of selected fractions of bottle glass waste in concrete production. From all mixtures, samples with dimension 160x40x40 mm were made in our case study. After 28 and 90 days of hardening, samples were ...

Dyeing of polyester fabric is carryng out in slightly acidic me dium; the dyebath pH value is adjusted to 4.5 – 5.5, which resu lts in the huge amount of acidic industrial wastewater. In this paper, dyeing of polyest er knitwear with four disperse dyes in the pH range 4.5 – 7, in order to reduce the amount of acid used in the dyeing process, was investigated. Colour differences between the samples dyed at pH 6.0 and 7.0 and one dyed at pH 4.5 were asseessed using the technique of reflectiometry and expressed in te...

The using of low-emission - renewable sour ce of energy (wind, solar and photovoltaic energy, geothermal energy and energy from biomass and biofuels) undoubtedly contributes to the retardation of climate changes. The energy is the essential part for the world function. Today is the achievement of reasonable energy consumption one of the fundamental roles. It has 80% of all greenhouse gas emissions in the world, which are the main cause of the climate change and stronger air pollution. Therefore it is needed to red...

Bangladesh faces a major challenge in supplying safe potable water to the most of her 160 million people. The drinking water in Ba ngladesh is largely sourced from hand- pump tubewells, which draw drinking water from shallow aquifer, which has been badly polluted with Arsenic in recent years. Although various methods have been proposed to solve this problem, an acceptable and sustainabl e solution is yet to be achieved. As an alternative, rainwater can be harvested and used to secure the safe potable water for Ban...

The large-scale emission of carbon dioxide in to the atmosphere has wrought of the most serious and dangerous problems upon the earth, especially with regard to the devastating consequences of the greenhouse effect. The reduction and/or fixation of carbon dioxide can be said to be one of the most important areas of research in chemistry today, not only for solving th e many urgent problems resulting from the pollution of the global environment but also for finding ways to maintain vital carbon resources. One of th...

Ground water, according to higher reliance coefficient and less fluctuations, has been used for many years. Precipitation is a major supplier of underground water resources and aquifers. So any changes in rainfall amount fluctuate underground water table depth. Occurrence of drought is the most important reason for the decrease of water table. To analyze the role of drought on underground water in Shahrekord plain rainfall and water table level were used during 1984-2008 period. The resualts shows a strong correla...

The purpose of this paper is to describe a new method of leaching refractory ore with complex leaching solution consists of various chemical substances on the basis of liquid culture heterotrophic bacteria Pseudomonas aureofaciens. The usage of this complex solution was resulted in considerable noble me tals solution increase with a little time of leaching. Experiments were planed with the method of mathematic planning. Quantum- chemical counts have shown stability of metal complexe s have been created in this sol...

Installation techniques of pipes line, such as water, sewerage, gas etc. are changed nowadays. Because of conventional inst allation of pipes in trench has many disadvantages, such as disruption to traffic flow, loss of access, noise, additional safety and technical problems with other buried se rvices, trenchless pipeline technologies are used widely nowadays. Settlements of the road surface are not to be expected as well as road repair work is not necessary along the pipeline for trenchless installation. There h...

Cyanides/cyanates of sodium or pota ssium not only during centuries but over millenniums were used in methods for extraction the gold from ores, and further in refining of obtained golden m ud. In those processes the cy anides/cyanates still are not changeable. According to the huge amount of tr eated ore, it is expected that the amount of waste treated materials also be huge. We lding and brazing of golden parts frequently are obvious in usage for the purposes of gold jewel making. Therefore, it becomes reasonabl...

The aim of this study is to investigate the organic facies characteristics of the Miocene Units in Northern Manavgat (Antalya), Tu rkey. The study area is located in the Western–Central section of the Taurus Belt. Miocene units mainly consist of three formations which are Upper Burdigalian–Langhian Oymap ınar Limestone, Langhian Geceleme Formation and Serravallian–Torto nian Karpuzçay Form ation. The Units consist of sandstone, siltstone, claystone , limestone, clayey limestone and reef limestone. Total organic ca...

Within the NATO Science for Peace Project 981882 “Site-effect analyses for the earthquake-endangered metropolis Bucharest, Romania” we obtain a unique, homogeneous dataset of seismic, soil-mechanic and elasto-dynamic parameters. Ten 50 m deep boreholes are drilled in the metropolitan area of Bucharest in order to obtain cores for dynamic tests and vertical seismic profiles for an updated microzonation map related to earthquake wave amplification. The boreholes are placed near former or existing seismic station sit...

VSB – Technical University of Ostrava has a possibility to investigate changes in the rock massive during operation of heat pumps. Our new University Hall is heated up by the heat pumps. This object is the biggest building in the Czech Republic and in the Central Europe which uses this type of the system. Monitoring boreholes are situated in the area of heat pumps boreholes. They are equipped with heat sensors which monitor temperature changes in rock massive during the heat pumps operati on. This locality is call...

Climate change is a serious threat to the e nvironment. The idea of climate envelope is stimulated by the quest for environmental su stainability. ETFE film is highly regarded as a sustainable material, wh ich together with the air makes the system ETFE pillows. Due to its characteristics, ETFE multilayer systems are suita ble for the construction of climatic envelope in certain areas, as well as highly effective modulators of the environment.

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- treatme...

Researches of ilmenite reduction kinetics defining intensity of process course are carried out for many years. Main characteri stic is concentrate reducibility degree, characterizing process speed in concrete conditions. Ilmenite reduction process is very complicated, and its speed depends on many factors - oxides nature, temperature and degrees of concentrate grinding. Iron complicates ilmenite concentrate use in its chlorination process for obtaining titanium tetrachloride - an initial product for obtaining of s...

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), “Ratio...

In the present circumstances, where environm ental problems are on the rise and occupy the agenda of the societies in the different ways, education is on the suggested solutions to these problems. The addition of the environment as subject to the educational programs, applications and processes is very important in every phase of awareness of the environment. The aim being such, nowadays countries include environment consciousness contents in their syllabus th e efforts of the new generations being informed about ...

Ecological problems are a lot in numbers, ther efore and their resolving are looking in many ways. Certain the own contribute should give and economics sector because in one or another way they can contribute to protect or to destroy the environment. Sensibility and awareness of publics and ins titutions for protecting the environmental and survival for all of lives forms are very important, all of this can contribute for now and future generations. In this paper work ecological awareness is analyzed in some of ec...

Creep damage of pressure equipment invol ves a great variety of high temperature components ranging from superheaters, bo iler drums, furnaces, reactors, etc. Consequences of failures of these components are of high economic and safety concern. Moreover, the probability of failure of high temperature components is now increasing due to frequent cyclic of power plants im posed by a deregulated market and the search for increasing temperatures in ultra supercritical plants. A housing from high-pressure steam turbine...

In last decades, many localities in the Czech Republic were encountered by intensive flooding, as well as their frequency increased considerably. With these natural disasters are directly linked the increasing number of lo ss events that affect the pricing methods of real estate and, ultimatel y, affect the prices of prop erty. Valuation of property in flood areas has its own specifics, among which ranks the register of high-risk localities in the Czech Republic and the completion of the Flood Maps, which specify ...

The authors want to emphasize in this pape r the role of environmental resources in ecotourism. In previous international studies on the motivation of tourists it could be seen which the elements that in terest them are: namely to travel to wild places that provide visual and unique cultural experiences. These tourists are trained and want to know more about the elements sauce as flora and fauna, natural phenomena and unique cultural forms. Activities that they prefer are hiking observing lands capes, birds, etc. ...

Appropriate selection of technological pro cess, as well as technology for processing row materials at quarries, creation of dust emission into the air and its further dispersion would be reduced to the minimal possible measure. This paper represents results of measurement of sedimentary and floating dust, as well as measurement of noise that are products of exploitation of limestone and spilite at SM „Kota“ near Vareš. Measurement confirmed that during limestone processi ng at mentioned location, pollution of res...

There are many problems related to pipe network rehabilitation, the main one being how to provide an increase in the hydraulic capacity of a system. Most of the Slovak irrigation pipe networks are branched, which is case elsewhere. A possible approach to increasing the hydraulic capacity of such system s is to convert them to looped networks (thereby providing alternative pathways) and increase their hydraulic capacity with minimum capital investment. In this work authors deal with application of simulation and op...

There are many natural water springs in Tuva, that are used by native people for medicinal purposes. They are called arjaans. To people’s opinion, the treatment at the arjaans is very effective. It’s an old national tradition of tuvan peoples closely connected to the way of life. Every year more than 10.000 people are treated on the arjaans without medical control. The therapeutic methods used by the arjaans traditionally are drinking, having shower and bath.

Recycling is the method used to reduce the environmental impact of large volumes of materials, the sparing use of resources is another relevant factor here. The waste materials which occur in the foundry and st eel industry alongside the target products most be used elsewhere or returned to the foundry and steelmaking processes. The result will be that the need to dispose of material s will be greatly reduced , so alleviating the demand for landfill capacity. In addition, raw material depo sits will be conserved a...

The aim of this paper is to discuss the correlation betw een students’ creativity and students’ performance at vocational studies. The research seeks to define educational performance by considering multidimensional nature of creativity. This research aimed at exploring the re lationship between self-esteem and academic performance by using creativity inventory. To this end, a research has been conducted on the students of vocational studies (n=312 ) in Istanbul. According to the results, a weak relationship (r<0,...

This work presents the geological structure of the Chipupushi area which is located on the border between the Northwestern Province and Copperbelt Province in the Republic of Zambia. Geological structure of the Luswishi dom e, within which the Chipupushi area is, consists of: Igneous rocks, the complex of ultra basic, basic, intermediate and acid magmatic rocks, the Basement Complex, which was built of schist, gneiss, granite - gneiss and subordinated pegmatite as well as the Katanga super group out of which the C...

On global scale the nickel coa tings obtaining is realised with electrolytes that have the toxically composition that working at the temperature range 40 - 800C. In this paper was proposed an ecological solution to obtaining the nickel layers and composite coatings with nickel matrix and silicon. The energy consume is reduced be cause the working is passed on ambient temperature. The addition of silicon particles into nickel plating bath leads to significantly changes for the surface morphology and for the roughne...

This paper presents the investigations related to Moho - disc ontinuity on the territory of the Republic of Macedonia. Conducted inves tigations using deep seismic sounding are base for correlation analysis of the dependen ce of the depth of the Moho - discontinuity with some physical parameters. The paper shows the map of the Moho - discontinuity of the territory of the Republic of Macedonia. The depth varies from 48 km on the west, 30 km in the Vardar zone and 45 km to the east to the border with Bulgaria. Topog...

Quantitative risk assessment is a procedure fo r estimating the probability of an adverse health effect occurring in a local population from some events and the probability of the occurrence of the event. The risk analysis pr ocess consists of hazard identification, risk estimation, risk acceptability, risk evaluation and risk management. In this research, after extracting the risk assessment components; an algorithm has been drawn in order to analyse the risk assessment and to esta blish the framework for risk an...

The paper deals with the study on pyrite liber ation from talc raw ma terial. The material comes from deposit nearby Gemerska Poloma village (Eastern Slovakia). A lumpy material was subjected to crushing, grain si ze and float-sink analyses. Heavy and light products were also assayed. XRD study of sel ected products of float-sink analysis was carried out. Thus, it was found that iron and sulphur concentrate in a grain size classes of 0.5-3mm, above all in 1-2mm. The highest mass yield of heavy product was attained...

S 7 300 is the most widely used series in PLC Industry. Using this PLC, the control of 1024 input /output may be done. In addition to this, using PLC system design is also possible. By peak output programming, comp lex factory projects and management can be fulfilled. Using PID control system whic h is one of the PLC controlling systems will be used to control AC motor speed. At the same time, the motor reactions will be tested by panel programming by changing PID values on computer screen. The purposes of the aut...

The main aim of the work is theoretical and experimental research of nanocomposite systems formation process on the model of chromium electrolytic coatings, ascertainment of laws and mechanis ms of silicon dioxide nano-sized particles influence on the structure and properties of metal. We researched the process of electrolytic formation of chrome - silicon dioxide nanocomposite systems and nanostructured composite electrolytic coatings with silicon dioxide (3-50 nm) used as a dispersed phase. Methods of the resear...