Browse

The focus of the study is to examine the precious elements of the metallic occurrences which are related to sulphure mineralizations in Yenice-Arapucandere Pb-Zn ore deposit (Canakkale). The ore bearing deposits in northwestern Anatolia show a great deal of similarity to the distribution of the Tertiary – Quaternary volcanic and intrusive rocks in the region. In addition various kind of metallic ore deposits form as a zonation. Arapu\ccandere hydrothermal polimetallic ore deposits are richness of those complicat...

The focus of the study is to examine the Gallium, Germanium, Cadmium, Gold, Silver, Indium, Selenium, Thallium, Rhenium and Tellurium elements of the metallic occurrences which are related to sulphure mineralizations (galena, sphalerite, chalcopyrite and pyrite) in KalkД±m Region lead-zinc ore deposits, Yenice (Canakkale). KalkД±m hydrothermal polimetallic ore deposits (BaДџД±rka\ccdere, Handeresi, ArД±lД±dere and FД±rД±ncД±kdere occurrances) were existed in schist of Karakaya Complex under the effect of Eybek Gra...

Petroleum which is also known as black gold has a 150 year history. Oil which took part of coal in the 20th century is an important energy resource in economic and strategic terms. In the world, approximately the 26\% of oil reserves, and approximately 12\% 16 - 19 trillion cubic meters) of natural gas reserves are in the Caspian Sea. When we evaluate oil and natural gas reserves, the Caspian Sea (Region), not as much as the Persian Gulf, comes third after the Siberia in oil potential. Clean, cheap and safe way to...

Periodic thermal processes and periodic temperature fields are of widespread occurrence in nature and technology. In nature they are at a large conditioned by periodic processes, such as the Earth’s one year period orbital motion, its diurnal rotation, etc. In conductive heat transfer mechanism daily variations in temperature almost decay in a layer about 1 meter thick and annual variations do it in a 18-21meters thick layer. In the case that periodic Sun heating coincides with fluid mass transfer (when water pe...

Although the European Union’s directive about environment protection as WEEE and RoHS have been carried out in 2003, led solders are still in used in Serbia. In the aim to respect the European and world directives and laws, it is necessary to reduce a quantity of toxic element and to establish lead and cadmium free solders in production. In this paper it was presented lead-free alloys, which are used for ecological solders manufacturing and various applications. These are results in the frame of technology devel...

The aim of the present study is to investigate the biological effects of contaminants is a combination of chemical and biological measurements. Among biological measurements, investigation of alteration at the cellular or sub-cellular level can provide an early-warning signal of adverse biological response before they are manifested at the population and community level. Lysosome destabilization test has been the method of choice in the present paper. A relatively low retention time of the used red neutral dye amo...

According to an multidisciplinary approach based on survey, analysis and labor work, this study work attempts to tease out some valuable lessons, strategies and guidelines which should be connected to environmental management in Kosovo, a new born state with no effective environmental management in the past. The study focuses on the environmental impact that a huge dormant lead and zinc mining facility, named Trepca causes. The fact that Kosovo is very rich with sulphide minerals shows the potential for mine water...

Details presents in the paper realize at collaboration the Ministry of Science and Technological Development on project No 17004 R. Serbia. Presented carakterisics clivage in aspect on massif rock research in drillholes B-1k, B-2k, B-3k, B-4k and B-5k. Evaliation of rock stability, in which will be place tunnel axis, took from prospecting Krivelj`s River. Iinvestigations are: structural characteristicsa of rock massif, degree of disintegration, alteration degreee, fracture degreee and physico-mechanical characteri...

Studying the level of the underground waters nowadays is very important; therefore it is more than necessary to improve and study more this field, but always moving towards the digitalization of various devices. For this purpose we have constructed a device which measures the level of the underground waters, the device named BerSi 07 is a device which measures the level of the underground waters, flux of ground water, direction of movement of underground waters, active radius, hydrolines, hydraulic gradient, the d...

The SyNaRMa project realized under INTERREG IIIB Archimed resulted in the development of a Web-based GIS (http://gserver.civil.auth.gr/SyNaRMa\_app) for management of natural disasters (earthquakes, forest fires and landslides). The SyNaRMa system focuses on the three phases of disaster management, i.e., preparedness, response and recovery, improving the emergency plans applied by the competent authorities in order to handle natural risks more effectively. A directive process of preparedness realized in the frame ...

Peridotite massif of Goleshi is representative of the dippiest mantle section of Vardari oceanic lithosphere: The characteristics of deep mantle peridotite are: the total lack of pyroxenite dyke series, the total lack of the gabbroic dyke series, the lack of the chromites ore bodies, presence of rare and small dunite lenses. Ophiolitic peridotite of the Goleshi massif set tectonically over metamorphic Paleozoic-Triassic series and is transgresivelly overlaid by Pliocene formations. The striking of the foliation is...

The Middle and Upper Jurassic deposits develop on a large area in Dambovicioara Corridor. In this area belongs both to the “Group of the formations of Braşov” ([8], [9] redefined, emend [3]) and to the “Group of the formations of pre-Leaota” ([9], emend [3]). The group of Braşov covers strictly the area of D\^ambovicioara Basin, and the group of pre-Leaota was extended as well over the fosse Codlea-R\^aşnov-Podul D\^amboviţei and over Şinca-Piatra Craiului [3]. The facies of the two groups are differe...

Sediments analyzed were taken from Е»elazny Most tailing dam, the biggest in Europe. Sediments were investigated by granulometric, mineralogical and chemical methods: microprobe analyses, fluorescence and spectrometric method as weel. Granulometric composition allowed us classify it as silty sands and sands. The carbonate and sulhate grains, illite and kaolinite were identified. Haevy minerals appeared in quantity less then 10\%. This fraction consists of chalcocite, chalkopiryte, marcasite, piryte, covellite and ...

The objective of our study was to examine the mineralogy and chemical composition of ochreous sediments accumulated in the area of four abandoned Sb deposits from Slovakia. Each of them is from different geological settings and there are also differences between types of mineralization and mine processing. Samples were collected mainly from mine drainages and fraction under 0.063 mm was analyzed using conventional methods, including X-ray diffraction, IR spectroscopy, transmission electron microscopy and sequentia...

Nowadays, the problem of fine micro-and nano-scale В«invisibleВ» gold, remains urgent, with the substantial loss of metal during enrichment of sulphide ores. Mineralogical studies show that the vast majority of native gold in sulphides is in the form of fine, dust and thin particles, with a subordinate amount is very small and petty. According to the confirmed reserves of gold, Kazakhstan is among the top ten countries of the world. The considered balance stock of deposits is 196 (126 autochthonous, 47 complex, 23...

Ventilation networks in underground mines may be affected by items such as: locating of objects in air path or destruction of support systems which would result in pressure loss and distortion of air flow. By considering the necessity of keeping the network performances at appropriate level in such conditions, in this study, definition of ventilation network evaluation has been proposed which indicates the network reliability in an uncertain situation. Economic and safety concerns in mines involve this fact that t...

Two models have been proposed – static and kinematic – for modelling of the contemporary vertical crustal movements. Herein are demonstrated: the mathematical mechanism, the experimental investigations, the analysis of the results and some graphical representations. Based on the modelling, the relevant conclusions have been drawn.

The presence of aerosol particles is strongly related with increased morbidity and mortality even at the ordinary aerosol concentration levels that occur in the urban environment. Aerosols contamination of indoor environment can originate from both outdoor and indoor sources (cooking, smoking etc.). Dangerous effect of particles consists in their penetration and deposition into human respiratory system. Because of inhalation exposure not only particulate size is important, but also particulate matter’s chemical ...

Drilling for mineral resources can be one of the most expensive processes in the exploration and production. Hence, drilling industry has been striving since its inception for developing drilling techniques which allow for fast drilling rates but ensuring the safety of the well and of the workers. Parameters affecting the drilling process can be cast in two major categories, rig and bit related parameters and formation parameters. The first category includes weight on bit, torque, rotational speed, and hydraulic p...

The city of Mitrovica, approximately 40 km north of Prishtina, was the site of one the largest lead smelters in Europe. The present environmental situation in Mitrovica, put as in front of the responsibility to act more rationally towards nature and to be more responsible towards the protection of the environment for future generations. The lack of protection of the environment during the last ten years, as well as the conflict in Kosova are the origin of huge problems regarding present environmental situation in ...

Combustion product production increases with growing demand for energy produced by fossil fuel combustion. Their amount is higher in every year and new way of their use must be looked for. The combustion products can be largely used in a building industry where light ashes are applicable admixture for a concrete production or as a partial substitution of cement. Other way of use is at reclamation and improvement where the combustion products can be applied for back filling or rampart creation. The objective of the...

The nature does not respect administrative boundaries. However, the protected areas are very often located on the state boundaries and in many cases neighbour just on the boundary. Also establishment of Natura 2000 Network as the "Habitats" and "Birds" Directives invoked the need for interoperable, accessible and harmonised datasets in the European Union. The need to have information on nature conservation geo-referenced and available at the EU level increases in recent years due to a trend by European park author...

Currently, continuous gas lift has a significant contribution for the purpose of petroleum production from those wells that have low production rates or those that have ceased their production. Therefore, production engineers are constantly finding the ways for optimizing this type of system. Superior designs are achieved when important parameters are optimized prior to system implementation. Optimization of gas injection into the annulus and also the tubing size are of the most important parameters. The functiona...

A marine archaeological survey reveals not only ancient relics, in cases of success but interesting features on the seabed. During a field work, at the sea area westwards of Santorini island, (South Aegean Sea, Greece) we discovered volcanic formations of pillow lavas surrounded by hydrothermal vents, delineated by white bacterial mats and drifted particulates in the water column. With side scan sonar, we recorded two circular dome-like formations possibly of volcanic origin with nearby larger seamounts and wide o...

A combustion product production has increased in Czechia in recent years. The ways must be looked for how to use the combustion products effectively. One of the ways is to use them as building mixtures suitable for building purposes and for reclamation redevelopment works. Types of building mixtures based on combustion products were designed and their qualitative parameters were long term observed in the frame of the solution of a research proposal under the title “Research of physical and chemical properties of...

The causes of geomagnetic disturbances are either high velocity streams of solar wind originating in coronal holes or coronal mass ejections related to solar energetic events. In this presentation we will concentrate on the second case. Data concerning solar energetic events, published by the USAF/NOAA in the form of daily reports, have been collected since 1996. An analysis of ten years long data collection has shown that the degree of the geoeffectiveness of energetic events depends not only on their size and on...

SД±r\ccalД± Medrese(Madrasa- moslem theological school), which is one of the most important medreses of Konya and Anatolia is in Konya Province, Meram District, GazialemЕџah Quarter.SД±r\ccalД± Medrese, that is among the medreses having an open courtyard, two liwans and two floors, has been had constructed by Bedreddin Muslih in the Period of GД±yaseddin Keyh\"usrev the 2nd. In the front parts of the building cut stone is used, while in other parts rubble stone is used. It has been used as medrese until 1924 with ...

In regard to indisputable carcinogenic effects of asbestos species the European Union prohibited (from January 2005) the usage all kinds of asbestos fibres in member states. This fact resulted in replacement of asbestos by artificial mineral and synthetic fibres. In this context large demolitions are realised, frequently unnecessary and a big volume of wastes and dangerous dust is created. These are mainly hazardous wastes that require an adequate disposal. The paper offers a view of the most frequently used metho...

Bubble-point pressure, gas solubility and viscosity of oils are of the most important parameters in use for petroleum and chemical engineers. In this study a simple-to-use; straight-forward mathematical model is correlated on a set of 94 crude oil data. The correlation is achieved based on an exponential regression. The results are compared with variety of conventional empirical correlations and have also been evaluated by comparison with 12 laboratory data other than those used for the regression. It has been con...

The offered method is based on consideration of seismic process as a process of Earth’s crust destruction by seismogenetic breaks of different size and location, connected with each other. Special mathematical methods of handling are used to reveal these connections of earthquakes (EQs) that determine place and time of a preparing strong EQ. We’ll divide EQs (1) by their strength in magnitudes, for example 5.0 and 7.0, into weak, moderate, and strong, and (2) by depth, for example 15 and 40 km, into surfacial,...

Methane emission into the underground mine environment frequently leads to gas accumulations and therefore increases explosion risk. This risk is very serious since primary gas explosion can act as an ignition source of the secondary coal dust explosion with devastating consequences, generating disastrous events in underground mines. In most cases fatalities occur at locations far from the source of the explosion due to the effects of a propagating large flame and an intense pressure wave. The objective of this pr...

One of the two main elements create our professional discipline is the effort to determine the shape of the earth and related developments in measurement methods and techniques, the other is the cadastre and title studies connected with the phenomenon of property. The currency, reliability of the present title and cadastre data on the usage of national database isn’t sufficient to respond the needs of technical and information technologies. Land arrangement works in Turkey has been carried out under the two main...

Classification of information and data of mining in every relevant mining industry plays an important, sensitive, and undeniable role in progressive decision making procedures. Collecting this data in the form of a software collection package can be useful in providing service and information for the future mining activities and industries. Organizing of mining information on base the type of major minerals, geological setting, origin of the forming , and situation of the active and abandoned mines basically leads...

Natural sources of water, especially fresh water resources, are of significant importance for the population of each country. One of the major problems of the research of water state is the determination of influence of anthropogenic impact factors on water quality. In the given work there is executed statistical processing of the existing base of longterm historical data of the River Kura (Mtkvari) water quality parameters (some physical-chemical parameters and the main ions) for the period of 1980–1989, and th...

\cCakraz district of Bartın province in northwestern Turkey contains wide deposits of quartz sand. Regional geology consist of Lias aged carbonated claystones of Himmetpaşa formation, Barremian aged limestone, dolomitic limestones of Zonguldak formation and Aptian aged sandstone – carbonated sandstones of Kilimli formation. \cCakraz district quartz sand deposits are hosted in Himmetpaşa formation and usually occur as wide lenses in the host rocks. In this study major and minor element chemical analysis, petro...

Urbanization in many aspects in the process of social change and forming has its own distinct features. Especially urbanisation in the developing countries like us has been experienced a process including both traditional and modern institutions and socioeconomic structures. The most important component on implementation of the plans which prepared to redirect the development is plan implementation tools. In this way, while the plan application was being provided, the equal share of urban income can be given by th...

Dusts arise in every step of foundry process. A lot of dust create by mould sands and core sands preparation. Their composition depend on used binder. The main compound of these dusts is SiO2 and by mould sands with organic binder it is carbon too. A melting process is connected with formation of flue dust, its composition depends on charge composition. Cupola furnaces, electric arc furnaces and induction furnaces are used in foundry. The most quantity of dust is produced from cupola furnace. It is very fine-grain...

Return material consists of gating, risers and residues from cold chamber, defective castings and another residues from die casting. This material has to be degreased from the fatty and separating agents that are usually of oil origin. In common praxis the clean and contaminated material is put in to melting furnace, it is melted and new alloys are added in the form of small pieces. Within the frame of experiments the influence of contaminated return material in the charge on quality die castings was observed. The...

The method of seismic refraction is widely used in many applied Geology fields and problems today. Although it has some limitations, in the case of detecting a lower velocity bounded layer, this method is well tailored to a crystalline environments where, more often, weathering degree is highest on the surface and gradually decreases in depth and thus can aid in associating the weathering degree to velocity. Some relationships have been made to establish a connection between velocities and the elastic properties o...

Several soft-programs to reverse tomography data acquired on 2D panels, for transmitted seismic rays, were developed. The procedures are based on three concepts: graphic mediation of velocities (V) coupled with a system of correction factors to reconstruct the initial V distribution (Tomography Interactive Modeling-TIM), minimize velocities errors by applying matrix calculation (Matrix Calculus in Tomography -MCT) and graphic-analytical uncover of velocities from the periphery to the center of the examined panel (...

Anomaly separation plays an important role in mineral exploration. The fractal based method presented in this study provides an anomaly separation method which accomplishes anomaly separation in frequency domain. It is based on the Fourier transformation, which can be compared to a glass prism. The prism separates light into various components, each depending on its wavelength (or frequency) content. Fourier transform can be viewed as a "mathematical prism" that separates a function into various components based o...

Recent renewable energy sources utilization in the Slovak republic represents only 2.6 \% from the total primary energy sources consumption. 27\% of the Slovakian technically utilizable renewable energy sources potential is used, so there still remain enormous unused potential, which comprise 115 775 TJ per year. Technically utilizable Slovakian renewable sources potential is estimated, based on the existed analysis, at 112 636 TJ per year (or 136 421 TJ per year, if we consider hydroelectric power plants with the...

The clay fraction of saponite-rich samples from western Macedonia, Greece was used for the preparation of TiO2 –pillared saponite. Nanocomposites of titania saponite were prepared by solvothermal reaction using water and ethanol as the solvent, hexamethylene tetramine as the precipitant and titanium trichloride as the precursor. Phase composition, particle morphology, element content and physical properties were characterized using X-Ray Diffraction (XRD), Scanning Electron microscopy with Microanalysis (SEM-EDS...

This study focuses on the geochemical and mineralogical compounds of clay occurrences that had been interbedded low rank coals in Biga Peninsula, Turkey. The usages of these clay formations were also studied. Clay occurrences were formed and alternated along with Tertiary lignite seams in the peninsula where is one of the basic metallic and industrial mineral potential regions in Turkey. Chemical and mineralogical analyses were performed on thirteen clay samples from different lignite beds. The XRD analyses show t...

Kosovo is rich in coal resources / reserves. There are about 14 billion tones coal resources in Kosova. The coal in Kosova is used mainly in power (electricity) generation and less amount for heating. Kosovo coal is lignite type. Exploitation of coal is being donning in two open pits Bardh and Mirash. There is also a project for building of the new power plant (capacity 2000 MW). For this, supply of coal should be made by the new mine - Sibovci. The underground mining was abandoned in 1922. Now it is the surface m...

Kosovo has a varied geology that ranges in age from the Neo-Proterozoic to the Holocene. The geology is characterized by substantial structural features on a regional scale, including, normal faulting and thrusting. The area belongs to the External Vadar Zone (EVZ). The Volcanic complex Mitrovic\"e – Samadrexh\"e is dominated by Jurassic and Neogene volcanic rocks from several eruption centres, interlayered by metamorphic and sedimentary units. The survey area was determined in the adjacent area of the known Pb ...

Sb-mineralization had been exploited in many localities in Slovakia. Contamination of environment by Sb, As and other heavy metals is specific problem of Slovak mining regions. Three localities Poproc (in eastern part of Slovakia), Medzibrod and Dubrava (in The Low Tatras) are abandoned mining areas where the stibnite ores had been exploited for many years. These areas represent high potential environmental risk because of transport and accumulation of contamination in different parts of environment (waters, strea...

The historical Ibrahim Aga Mansion purchased by the Chamber of Architects of Aksaray and wished to be used as the service building for the chamber. In this study, the strengthening project before the restoration of the building was prepared. The building had no foundations under the stone walls and suffered from cracks and decaying of the wooden floors. Since the existing structural system did not allow restoration of the building, strengthening and redesign of the structural system was the main priority. In the r...

As it is well-known, customer relationship management (CRM) has become an important topic for practitioners in recent years. Customer relationship management becomes an important key of how to manage relationships with customers effectively. A key component of many initiatives is the implementation of Customer Relationship Management (CRM) methods. In order to enhance customer relationships, the application of CRM methods are exploring in detail. By means of the application of CRM methods, university human resourc...

The web content grows annually by a geometric progression. Internet pages provide information not only through the markup language (X)HTML, which is used to create Web pages, but often in many different other formats and also web services. One task of this project is to make detail analysis of existing web services for obtaining the geographical coordinates of the given information and take advantage of them to extract spatial information from web pages. Positive results of this analysis in Czech information on th...