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M.

51 linked publication records

Author: M.Year: 2006clear all
Showing 1-50 of 51 records
6th International Scientific Conference - SGEM
Publication

AIR POLLUTION STUDIES AT THE GEOPHYSICAL INSTITUTE, BULGARIAN ACADEMY OF SCIENCES

(SGEM Scientific GeoConference, 2006, N.G. Miloshev)

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The present work aims at presenting the main research topics of GPhI in the field of numerical air pollution modeling. The basic dynamic and pollution transport models, applied for the purpose are briefly described. Some study results are demonstrated, concerning air pollution modeling in local and regional scales.

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

AN INVESTIGATION OF EFFECTING LANDSLIDE POTENTIAL OF GROUND VIBRATIONS CAUSED BY BLASTING AT KORKUTHAN QUARRY LOCATED AT BESIKDUZU, TRABZON

(SGEM Scientific GeoConference, 2006, F. Cihangir, B. Ercikdi, A. Kesimal)

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This study was aimed to determine the levels of blast-induced vibrations at BayД±rk\"oy town situated in the boundary of BeЕџikd\"uz\"u and being said to be affected by the blasting generated at Korkuthan Quarry being located at the edge of Akhisar Brook in BeЕџikd\"uz\"u in Trabzon. Korkuthan Quarry has assured riprap materials for filling the sea and sea fortification for the construction of Espiye-\cCarЕџД±baЕџД± coastal highway (including Giresun coastal highway) at the scope of The Black Sea Coastal Way Rehab...

Geodesy and Mine Surveying2006
6th International Scientific Conference - SGEM
Publication

AN INVESTIGATION ON NATURAL RADIOACTIVITY FROM MINING INDUSTRY

(SGEM Scientific GeoConference, 2006, E. Esmeray)

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The environmental problem of natural occurring radioactive materials (NORM) is omnipresent on Earth, and their radioactivity may become concentrated as a result of human activities. Various industries produce concentrated radioactivity in their by-products: Mining originating industries such as the coal industries, petroleum extraction and processing and natural gas, mining enrichment waste, phosphate, etc. They have been well known and widely investigated. The EPA describes NORM wastes from the mining and process...

Exploration and Mining2006
6th International Scientific Conference - SGEM
Publication

APPLICATION OF FUZZY LOGIC IN MINING METHOD SELECTION

(SGEM Scientific GeoConference, 2006, H. Dezyani, K. Shahriar, M. Ataei, M. Afshar)

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The use of numerical systems to evaluate the appropriateness of a mining method for a particular ore deposit has been in use for some time. These systems rely on ranking a finite number of geometrical, geological, and geomechanical parameters to arrive at a rating value for different mining methods. Nowadays application of fuzzy logic has been paid attention for selection of mining exploitation method. The mining method selection (MMS) system takes account of the uncertainty associated with boundary conditions of ...

Informatics2006
6th International Scientific Conference - SGEM
Publication

APPLICATION OF GPS TECHNOLOGIES IN GEODETIC PROCESSES

(SGEM Scientific GeoConference, 2006, J. Eftimov)

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It was successfully completed the first stage of the development of a multi-functional network of permanent GPS base stations in Bulgaria. The network receives and monitors the satellite signals from both the American network GPS and the Russian network GLONASS. The developed network allows the user to operate in real time as well as in post processing mode contributing significantly for the improvement of the measurement accuracy of the used GPS/GLONASS receiver. The system enjoys a widely spread application in f...

Geodesy and Mine Surveying2006
6th International Scientific Conference - SGEM
Publication

APPLICATION OF РђRCGIS FOR MODELING OF QUARRY AND MINE

(SGEM Scientific GeoConference, 2006, P. Pavlov, V. Kashamova)

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Geographic Information System (GIS) are gradually gaining greater importance in the course of modeling of processes and phenomena in the surrounding environment. The mining is also affected by those systems. They use not only powerful tools for modeling and visualization of real objects in the 3D, but also statistical analyses. Some of the features of ArcGIS [1] for 3D modeling, visualization and statistical analyses on quarry and mines are described in the article.

Informatics2006
6th International Scientific Conference - SGEM
Publication

ASSESSMENT OF THE CHARACTERISTICS AND METHODS FOR TREATMENT OF LANDFILL GAS, EXTRACTED FROM LANDFILL FOR NON- HAZARDOUS WASTE “SUHODOL”

(SGEM Scientific GeoConference, 2006, I. Ganev, B. Dimitrov)

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The quantity and the content of the landfill gas, emitted/extracted from landfill for non-hazardous waste “Suhodol” have been studied. Modeling calculations have been executed and forecast data for the quantity of the emitted and utilized landfill gas for the period till 2040 have been done. Methods for the treatment of the landfill gas, as it consists of methane - a powerful greenhouse gas, have been presented. The applicability of the presented different methods for Landfill “Suhodol” has been assessed. ...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

AUTOMATED SYSTEM FOR MANAGEMENT OF QUALITY OF THE EXTRACTED ORE IN OPENCAST MINE FOR MASS DETONATION

(SGEM Scientific GeoConference, 2006, M. Mazhdrakov, D. Benov)

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The system is intended for operatively planning and management of the quality of extracted ore in real time. The system includes following features: Creating and maintenance of data base which contains the numeral samplers of the detonated fields, the needed technical and technological indicators etc. Planning of the extracted activities for period, day, shift and part of a shift by different optimization measures. Distribution of the extraction between the coal-faces. Reverse connection with GPS information relat...

Geology2006
6th International Scientific Conference - SGEM
Publication

BENTONITE LOCALITIES IN THE NORTH -BOHEMIAN BROWN-COAL BASIN AND THEIR POTENTIAL UTILIZATION AS CLAY SORBENTS

(SGEM Scientific GeoConference, 2006, M. Rehor, T. Lang, V. Cablik)

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A significant range of the landscaped damaged by brown coal mining is one of the base problems of the region of the North Bohemian Brown Coal Basin. The proper application of fertilizable rocks to sterile and phyto-toxic sits is the condition of the success of reclamation works. Natural clayey sorbents are usually of very good use, but the North Bohemian Basin is quite poor with them. Bentonite deposits are significant exceptions. They are a part of tertiary vulcanodetritic strata of the subsoil of a coal seam. Th...

Geology2006
6th International Scientific Conference - SGEM
Publication

COMPOST PRODUCTION EXPERIENCE FROM MUNICIPAL SOLID WASTE IN ISTANBUL

(SGEM Scientific GeoConference, 2006, T. Celik, M. Borat, C. Bayat)

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TOC (Total Organic Carbon), TKN (Total Kjedhal Nitrojen), tP (total Phosporus), C/N (Carbon/Nitrogen ratio) contents and other properties of Municipal Solid Waste, in Д°stanbul are suitable for Compost Production. Compost is an extremely useful agent in agriculture, provides humous to soil, improves its porosity, workability, aeration and needless to say improves water absorption capacity. It also helps increasing the number of saprofit micro organisms and helps plants to get more of fertilizers. Another advantage...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

CONSIDERATIONS ON THE INFLUENCE OF ATMOSPHERE POLLUTANTS ON SOME SPECIES OF CULTIVATED AND SPONTANEOUS LIGNEOUS PLANTS

(SGEM Scientific GeoConference, 2006, L. Ivanescu, M. M. Zamfirache)

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We have studied 15 species of ligneous plants angyosperms, spontaneous and cultivated ones – in areas adjacent to industrial platforms: Borzeşti (Bacău county), Bicaz and Taşca (Neamţ county) - Romania; in the first case, the noxious substances are mainly gaseous (sulphur dioxide, chlorine, ammoniac), but also solid (carbon black, soot); in the other two cases, the noxious substances are mainly solid ones (lime or cement powders prone to sedimentation). Our investigations have focused on observations concern...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

DESCRIPTION OF THE RELATIONSHIP BETWEEN PHYSICO- MECHANICAL PROPERTIES AND SIZE REDUCTION PROCESSING OF ROCKS

(SGEM Scientific GeoConference, 2006, B. Kekec, M. Unal)

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Mechanical size reduction by using crusher and grinding mill is widely used in the aggregate producing industry and the mineral industry. In this study, physical, mechanical crushing and grinding properties of the rock specimens obtained from different bedrock were determined by using 8 different tests, to characterize the relationships between physico-mechanical properties of rocks and mechanical size reduction efficiency. The rock specimens were tested according to the procedures recommended by the ISRM (1981). ...

Geodesy and Mine Surveying2006
6th International Scientific Conference - SGEM
Publication

DESIGN OF OPEN PIT PUSH-BACKS IN CHADORMALU IRON MINE OF IRAN USING SURPAC

(SGEM Scientific GeoConference, 2006, G. Holamnejad, M. Osanloo, K. Pashaei)

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In open pit mine planning, push back mining sequence is widely used for long-term production planning. These push backs are designed with haul road access and act as a guide during the yearly scheduling process. Therefore, pushback design plays a key role in defining annual cash flows to be generated from a mining operation. In push back design, a series of nested pits is generated and then considered as possible push backs with regard to the minimum push back width requirements. These nested pits are produced by ...

Informatics2006
6th International Scientific Conference - SGEM
Publication

DETERMINATION OF THE SAFE SLOPE ANGLES IN CHADORMALU IRON MINE OF IRAN USING EXPERIMENTAL, ANALYTICAL AND NUMERICAL METHODS

(SGEM Scientific GeoConference, 2006, A. Jafari, J. Gholamnejad)

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Chadormalu Mining and Industrial Company (CMMIC) is mining Chadormalu Iron Ore deposit in Yazd province, central Iran by using conventional open pit mining method. The final pit will be excavated to a depth of approximately 225m with a bottom elevation of 1300m above mean sea level. According to the initial design, the inter-ramp slope angle of 55В° with a 30m bench height, a catch bench width of 10m and 70В° slope angle of individual benches were proposed. Mining to date has intersected complex geology and areas ...

Geodesy and Mine Surveying2006
6th International Scientific Conference - SGEM
Publication

ECOLOGICAL CONSEQUENCES OF COPPER ORE PROCESSING

(SGEM Scientific GeoConference, 2006, M. Banov, L. Misheva, R. Radev)

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Ore dressing leads to producing of great quantities of waste which are stored in special waste depositories (tailing ponds). They occupy large areas and their exploitation provokes air, water and soil contamination of the surrounding territories. Reclamation is one of the most radical methods for recovery of the environmental components, creation of conditions for grass and forest growth and formation of appropriate landscape. The current study aims to determine the anthropogenic impacts on the soils in the region...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

EMAS IN COMPANIES, WHICH ARE ORIENTED ON MINING MINERAL RESOURCES

(SGEM Scientific GeoConference, 2006, E. Augustinova, S. Majkuthova, K. Izova)

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ccording to Environment Report 2004, eight main areas with most violated environment can be identified in Slovak republic. Among those areas are also regions with mining and raw mineral processing, e.g . Jel\vsavsko -luben\'\icka, Rudniansko-gelnick\'a, Ko\vsicko-pre\vsovsk\'a a Zempl\'\inska regions. Affected regions can be defined by individual environment component grade, risk evaluation and regulations focused on environment protection. The presented paper deals about environmental impact of business activitie...

Mineral Processing2006
6th International Scientific Conference - SGEM
Publication

ENVIRONMENTAL PROCESS MONITORING USING INTELLIGENT GIS TECHNIQUES

(SGEM Scientific GeoConference, 2006, A. Dumitrascu, G. Costache, C. Nitu)

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This paper presents several applications involved in the fields of environmental protection and monitoring. The main goal was to obtain optimal solutions of analysis and survey implied in the monitoring of environment processes through the development of integrated systems based on dedicated GUI interfaces, DAQ devices and specific sensors. Geographic information system (GIS) technology can be used for scientific investigations, resource management, and development planning. For example, a GIS might allow emergenc...

Informatics2006
6th International Scientific Conference - SGEM
Publication

GEOGRAPHIC INFORMATION SYSTEM ANALYSIS OF LANDSCAPE CHANGES IN SELECTED PAST MINING-AFFECTED AREA OF SOUTHWEST OSTRAVA

(SGEM Scientific GeoConference, 2006, M. Marschalko, R. Konstantin, D. Vojtech)

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The paperedeals with the results of an analysis of landscape element changes, such as forests, water areas, agricultural areas, built-up areas, anthropogenic shapes in the selected area. The applied method makes use of the possibilities of Geographical Information Systems, terrain observation, documentation and study of archives. The starting time period for which the landscape character analysis was carried out is the year of 1946 (military aerial photos) and the present time (maps). The research is localized in ...

Exploration and Mining2006
6th International Scientific Conference - SGEM
Publication

GEOMETRIC AND KINEMATIC EVOLUTION OF PROGRESSIVE DEFORMATION IN SHEAR ZONES, SAGHEZ GOLD MINE, NW IRAN

(SGEM Scientific GeoConference, 2006, H. Hassani, M. Ghazanfari)

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The Saghez shear zone is part of metamorphic belt of the Sanandaj-Sirjan zone in northwest Iran that uplifted during continental collision between the Afro-Arabian continent and the Iranian microcontinent. The mine is being exploited by open-pits mining, with present reserves estimated at 3.2gr/t gold. The currently favored genetic model is an example of porphyry system, with mineralization being closely to shear bands and emplacement of granit and pegmatitic veins. Rocks from Sagez shear zone consist of metavolca...

Geodesy and Mine Surveying2006
6th International Scientific Conference - SGEM
Publication

GPS NETWORKS AND GPS MEASUREMENTS IN THE REPUBLIC OF MACEDONIA

(SGEM Scientific GeoConference, 2006, R. Ribarovski, Z. Srbinoski, J. Jovanov, M. Nasevski, ZL. Bogdanovski)

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GPS technology in geodesy is using for positioning of the geodetic points and the points from geodetic surveying in global coordinate system WGS84. In the Republic of Macedonia, as in the other countries of the south eastern Europe, were established GPS networks of the first range, but without increasing its density. If we have a fact that there are not astronomic-geodetic and gravimetrical measurements with the aim to define the local geoids more accuracy, it is clearly that can not be done massif and precise GPS...

Geodesy and Mine Surveying2006
6th International Scientific Conference - SGEM
Publication

IMPACT OF SOME PGPR ON ZEA MAYS “IN VITRO” DEVELOPMENT AS ENVIRONMENTAL BIOTECHNOLOGY APPLICATION

(SGEM Scientific GeoConference, 2006, S. Stefan, Z. Olteanu, O. Lacramioara, D. Simona, VINTU)

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Plant growth-promoting rhizobacteria (PGPR) can effect plant growth and development in two different ways: indirectly or directly. Indirect promotion of plant growth occurs when these bacteria decrease or prevent some of the deleterious effects of phytopathogenic microorganism. The most important way is the direct way, when bacteria promote plant growth by providing the plant with a compound that is synthesized by the bacteria from plant rhizosphere. From this point of view there are many studies that show the imp...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

INDUSTRIAL HEAVY METAL POLLUTION AND HAZARDOUS EFFECTS ON ECOLOGY: WASTE MANAGEMENT PERSPECTIVE

(SGEM Scientific GeoConference, 2006, M. E. Argun, S. Dursun, C. Ozdemir, M. Karatas)

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In this article, pollution of ecological systems with heavy metals and their hazardous effects were investigated as a view of waste management. Several industries from mining to electroplating produce large volumes of wastewater containing heavy metals. These wastewater cause accumulation of heavy metals through ecological circle in soil, plants and animals which directly enter human food chains presenting a high hazardous effect on consumers. They may cause severe damage of the kidney, reproductive system, liver,...

Hydrology and Water Resources2006
6th International Scientific Conference - SGEM
Publication

INTERNET CADASTRAL INFORMATION SYSTEM

(SGEM Scientific GeoConference, 2006, D. Baltadzhiev, M. Margaritova)

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Due to Internet development and the expansion of the communication network, the services lately delivered by administration and municipalities have improved by granting customers e- access to administrative databases. Several servers for geographical information are already available in the Internet. However, they encompass primarily geographical objects, roads, and the maximum level they reach is address. There is no data about estates, their owners, coordinates of the boundaries’ points, public areas, function...

Informatics2006
6th International Scientific Conference - SGEM
Publication

INVESTIGATION OF HEAVY METALS IN MAIN WASTEWATER

(SGEM Scientific GeoConference, 2006, M. Karatas, S. Dursun, C. Ozdemir, M. E. Argun)

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Heavy metals in wastewater are quite important because of being toxic effect for public health. Wastewaters that contain heavy metals are generally caused by industries discharged, either after primary treatment or even no-treatment farmers in Konya use wastewater for irrigation that discharged into canal. This causes soil pollution also decreases plant quality. Heavy metals can reach to humans and animals and causes toxic effects through food-chain. The aim of this study is determining heavy metal accumulation on...

Oil and Gas Exploration2006
6th International Scientific Conference - SGEM
Publication

INVESTIGATION OF THE SALT-INDUCED DECAY IN BUILDING STONE

(SGEM Scientific GeoConference, 2006, M. Unal, C. Oksuzoglu, H. Berber)

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Salt weathering is a process of rock disintegration that takes place in a variety of environments and affects many kinds of rocks. Salt crystallization is one of the most important degradation mechanisms on the effect of rock weathering. Salt weathering is especially effect on the pores rock and affects the rocks, which contains cracks and micro cracks. In this study, the resistance of stones against salt weathering was estimated by ultrasonic measurements and weight loss approximation. Experiments were carried ac...

Geology2006
6th International Scientific Conference - SGEM
Publication

MAPPING OF NATURE RISKS AND DISASTERS FOR EDUCATIONAL PURPOSES

(SGEM Scientific GeoConference, 2006, T. Bandrova, M. Konecny)

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The paper presents definitions of nature risks and disasters. The mapping of the risk processes is discussed in the direction of educational purposes. International organizations publish information brochures about how to teach children correct behavior and preparation for natural disasters. Questions as “What do you do in case of an emergency” are discussed. Standards and technologies related to emergency management are considered. Some examples of maps and methods of mapping for young and older students are ...

Geodesy and Mine Surveying2006
6th International Scientific Conference - SGEM
Publication

METHODOLOGICAL APPROACH FOR SELECTION OF POTENTIAL REGIONAL LANDFILL SITES ON THE TERRITORY OF BULGARIA

(SGEM Scientific GeoConference, 2006, KH. Khrischev, V. Georgiev, A. Stoimenov, R. Vatseva, I. Ilieva, M. Toneva, L. Marinova)

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For identification, preliminary selection and mapping of potential sites for regional waste landfills methods are applied, which are based on modern technologies - remote sensing, automated procedures in GIS environment for reduction of selected potential sites on the basis of pre-set categories and criteria as well as computer-aided visual interpretation of vector and raster data from the “CORINE Land Cover 2000 - Bulgaria” project. Office activities are followed by field investigations during which the main ...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

MICROBIOLOGICAL STUDY OF THIOBACILLUS SPECIES ISOLATED FROM MINE WATERS

(SGEM Scientific GeoConference, 2006, D. Simona, T. Gavriloaiei, M. Stefan, G. Popa)

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The selective bio-solubilization of mineral sulphide deposits has had an upward development lately due to the irreversible depletion of the ore deposits and the accumulation of large quantities of refuse dumps, the process being equally important for the economy and the environment. This paper aims at carrying out a quantitative assay of both the heterotrophic and the sulphur-oxidising bacteria of the Thiobacillus genus found in samples of mine waters collected from the Barza and Valea Morii mining sites in the Ap...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

MINING METHOD SELECTION BY TOPSIS APPROACH (CASE STUDY OF REZA ABAD BALL CLAY \& BAUXITE MINE)

(SGEM Scientific GeoConference, 2006, H. Dezyani, M. Ataei, K. Shahriar, M. Afshar)

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One of the most critical and complicated steps in mine design is to select an suitable mining method based upon geological, geotechnical, geographical and economical parameters. Since there are many factors involved for the selection of mining method, which is decision-making process, the problem is very difficult to solve. In this paper, Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) with 18 criteria is used to develop a suitable mining method for the Reza Abad ballclay \& bauxite ore dep...

Exploration and Mining2006
6th International Scientific Conference - SGEM
Publication

MODELLING OF SO2 CONCENTRATION USING ARTIFICIAL NEURAL NETWORKS

(SGEM Scientific GeoConference, 2006, S. Dursun, D. Guklu, F. Celebi, N. Yilmaz)

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Modelling of air pollution parameters, according to the meteorological data is a necessary for preventing the repetition of same problems. During recent years, neural network-based models have been shown to be powerful tools in the simulation of variations in air quality and provide better alternative to statistical models because of their computational efficiency and generalization ability. In this study, prediction of future daily SO2 concentrations in Konya (Turkey) using MLP (Multilayer Perceptron) artificial ...

Air Pollution and Climate Change2006
6th International Scientific Conference - SGEM
Publication

NEUTRALIZATION OF HEAVY METALS IN WATER AND SOILS BY IMMOBILIZATION INTO INSOLUBLE COMPLEXES, INABSORBABLE BY PLANTS

(SGEM Scientific GeoConference, 2006, N. Tabakova, S. Tabakova, V. Beshkov, I. Pojarlieff, V. MirchevР°)

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We present a method for the neutralisation of heavy metals – Pb, Zn, Cd and Cr in contaminated water and soils by binding them into water-insoluble complexes, inabsorbable by plants, which was found to be effective under laboratory and green-house conditions. By introducing multiblock copolyethers (MBPE) and low molecular weight organic chelates (LOC) in water, containing heavy metal ions, they interact stoichiometrically and precipitate, affording water of irrigation quality. Treatment with MBPE and LOC (by sin...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

OPTIMIZATION OF THE SYSTEM – “UNIVERSITY EDUCATION”

(SGEM Scientific GeoConference, 2006, M. Mazhdrakov)

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The problem is described with the concepts of the mathematical programming. The system UE can be valued with the execution of the participant’s goals – students, lecturers, state, contractors, parents and the rest of society. The optimization has to be done with the following limitations: • Capacity (the opportunity of the students to assistance) • Capacity (the opportunity of the lecturers to teach) • Financial means • Normative (rightful and administrative) boundaries The result – oriented function...

Education and Accreditation2006
6th International Scientific Conference - SGEM
Publication

PRELIMINARY EVALUATION OF STUDY OF SARBAND GRAPHITE DEPOSITS WITH GEOLOGICAL AND GEOPHYSICAL METHODS

(SGEM Scientific GeoConference, 2006, H. Ramazi, A. A. Firoozi, M. R. Hosseinnejad)

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This paper is devoted to geological and geophysical exploration of Sarband graphite deposits in Markazi province of Iran includes Khanadarreh Bala and Vesmestan deposits. Geological methods include trenching and drilling test pits and exploratory holes, sampling and analyzing with XRD and chemical analysis. This method show that Khanadarreh Bala deposits has purer graphite than Vesmestan and hosted in schistisited rocks and has higher continuity than Vesmestan deposit. Geophysical methods include SP ,mise-a-la-mas...

Applied and Environmental Geophysics2006
6th International Scientific Conference - SGEM
Publication

PROGNOSIS FOR FIXED BED CLIPTILOLITE PERFORMANCE IN THE PROCESS OF METAL IONS REMOVAL

(SGEM Scientific GeoConference, 2006, S. Dimitrova, I. Kostova, S. Petrova)

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Laboratory investigations on zinc ions removal from model solution in a column with fixed bed zeolite clinoptilolite were conducted. Experimental dynamic curves for sorption depending on the bed height of zeolite and velocity of treated solution were received. The main constant parameters characterizing the process at breakthrough were defined. It was established that the bed column volumes of solution and the capacity at breakthrough increase with increasing of contact time, whereas sorbent usage rate decreases. ...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

PURIFICATION OF WATER FROM FINELY DISPERSED OIL

(SGEM Scientific GeoConference, 2006, M. A. Al Afoori, V. Mircheva, N. Tabakova, V. Beshkov)

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The elimination of finely emulsified oil from waste waters is an important problem, and so far, no satisfactory solution thereto is available worldwide. Here we report some of the results from our studies on the purification of water from different types of oil, to allow waste water re-use in the technological cycle, or use for agricultural irrigation. The isolation of oil is performed by treatment of waste water with polymers of specific adsorption behaviour and solubilizing properties in aqueous medium. Multiblo...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

QUANTITY AND QUALITY STUDIES FOR CONTAMINATED UNDERGROUND WATER IN ABHAR PLAIN (NW OF IRAN)

(SGEM Scientific GeoConference, 2006, H. Moghimi)

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The studied area is 1960 km2 and located in Zanjan province and is placed between 48Вє, 48Вґ to 49Вє, 30Вґ east longitude and 35 Вє, 57Вґ to 36Вє, 36Вґnorth latitude. Human pollutants are mainly home and human sewage which is discharged by absorbent wells that seems to be one of the best ways of discharging sewage. On the other hand in the places where the underground water recharge the river, there is a possibility of having some environmental problems in the nearly future.Presently, the amounts of BOD5 and COD a...

Air Pollution and Climate Change2006
6th International Scientific Conference - SGEM
Publication

RADIOACTIVE AND TRACE-ELEMENT ENRICHMENT OF UPPERMOST BROWN COAL LAYERS: AN ENVIRONMENTAL ASPECT (KANSK -ACHINSK COAL BASIN, WEST SIBERIA)

(SGEM Scientific GeoConference, 2006, V. M. Gavshin, M. S. Melgunov)

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Jurassic brown coal layers of the Kansk-Achinsk basin are the actual source for thermal power stations of West Siberia. The thick (up to 70 m) coal layers lay almost horizontally. Typical unaltered coal is low in trace elements and has, correspondingly, a low radioactivity. However, coal in the uppermost part of the thick dense layers is most often altered to become friable and acquire unusually high contents of some trace elements including natural radioactive ones. Brown coal samples from open-cut mines and natu...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

RELATIONSHIP BETWEEN INTERACTIVE EDUCATION IN DIGITAL PHOTOGRAMMETRY AND IMAGE PROCESSING

(SGEM Scientific GeoConference, 2006, D. Marinov, P. Draganova)

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The main principles and methods of interactive education are discussed. The requirements to this approach of educational process are formulated. The differences between practical training and learning process are discussed. Based on these principles there are shown the examples for deductive education on processing stages in digital image processing and digital photogrammetry. Main attention is pointed to the initial data collection for purposes of inner orientation, image calibration and relative orientation of s...

Geodesy and Mine Surveying2006
6th International Scientific Conference - SGEM
Publication

REMOVAL OF COD WITH DICHLOROMETHANE AND TETRACHLORINEETHYLENE IN THE UP -FLOW ANAEROBIC SLUDGE BED REACTORS (UASB)

(SGEM Scientific GeoConference, 2006, C. Ozdemir, S. Dursun, N. Sen)

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Low concentration of chlorinated aliphatic compounds may be found in wastewater and contaminated soils from different industrial sources and in the air arisen from these type sources. Low levels of Volatile Organic Compounds (VOC)’s could be removed by adsorption, incineration or biofiltration methods. These methods have some disadvantages with low removal efficiency or high operation cost. Chlorine has been removed from the chlorinated aliphatic compounds by biological methods at anaerobic conditions. The aim o...

Hydrology and Water Resources2006
6th International Scientific Conference - SGEM
Publication

ROAD TRAFFIC NOISE IN THE CITY OF KONYA MODELING USING BY GIS

(SGEM Scientific GeoConference, 2006, S. Sahinkaya, C. Ozdemir)

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Noise is defined as unwanted sound and one of the threatening factors for human health. Noise effects on human health psychological, physiological and mentally such as interference with communication, hearing loss, sleep disturbance, stress, annoyance, effects on performance. Road traffic is one of the most important noise sources in residental areas. Subsource of the road noise are engine noise, tyre/road noise and aerodynamic noise. The level of noise from traffic is correlated with the traffic flow rate, the sp...

Informatics2006
6th International Scientific Conference - SGEM
Publication

ROCK MASS QUALITY EVALUATION IN BAKHTIARY DAM SITE USING SEISMIC METHODS

(SGEM Scientific GeoConference, 2006, H. Ramazi, M. Hossaini)

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This paper present a geophysical investigation performed for the Bakhtiary dam site in Iran. As it has been designed with 330 meter high, this dam would be the highest dam in the world. In the context of engineering seismology, seismic tomography may be relevant in problems where seismic refraction is currently used. Both of these techniques aim to detect subsurface velocity. In Bakhtiary dam site we used seismic refraction, tomography and borehole seismic tomography methods. For refraction seismic method Geotomo ...

Geology2006
6th International Scientific Conference - SGEM
Publication

STEPPING BEAM SUPPORTS TYPE GEROM-GP 250/1200 AT THE FACECOALS WITH SUBMINATION OF THE COAL BANKS FROM THE COAL BASIN IN JIU VALLEY - ROMANIA

(SGEM Scientific GeoConference, 2006, A. Serafinceanu, M. C. Melczer, A. Soare, GEROM, S.A. INVEST)

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The method for exploiting the coal layers by using the crazing and submitting the roofs of the mining works from the underground is an alternative applied on large scale into the brown coal mines from the main coal basin Jiu Valley situated into the S-W of Romania. The technology of individual supporting – by using the open circulation hydraulic props together with the linked metallic bars with blocking bolts and wedges, assume some great physical efforts and the factor of working security is not totally assured...

Geology2006
6th International Scientific Conference - SGEM
Publication

THE ANALYSIS OF BLAST-INDUCED GROUND VIBRATION AT CAN OPEN–PIT LIGNITE MINE IN TURKEY

(SGEM Scientific GeoConference, 2006, A. Kahriman, U. Ozer, A. Karadogan, M. Aksoy, D. Adiguzel)

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The principal disturbances created by blasting in open pit mines can be listed as ground vibrations, air blast and fly rock. All of them can, under some circumstances, cause damage to structures nearby, and can become the source of permanent conflict with the inhabitants living close to the operation site. Therefore, the prediction of ground vibration components is of great importance for the minimization of the environmental complaints. This paper presents the result of ground vibration measurements induced by be...

Geology2006
6th International Scientific Conference - SGEM
Publication

THE EFFECT OF AIR POLLUTANTS FROM BORZESTI INDUSTRIAL CENTER (BACAU DISTRICT) UPON PHYSIOLOGICAL PROCESSES OF WOODEN ANGYOSPERMES

(SGEM Scientific GeoConference, 2006, M. M. Zamfirache, L. Ivanescu)

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We took into consideration aspects regarding the physiology at two species of wooden angiosperms cultivated in sites from industrial area of Borzesti, Bacau District: Populus tremula L. and Tilia tomentosa Moench., during their ontogenetic cycle. We also talked about aspects related to some special biochemical and physiological parameters (dry matter content and assimilating pigments content). The researches of vegetal physiology have used classical methods of investigation. The negative influence of air pollutant...

Oil and Gas Exploration2006
6th International Scientific Conference - SGEM
Publication

THE GEOMORPHIC CONTROL AND THE ENVIRONMENTAL IMPACT OF GEOCHEMICAL PROCESSES IN THE PANGEON MOUNTAIN AREA, NORTHERN GREECE

(SGEM Scientific GeoConference, 2006, G. Papastergios, A. Georgakopoulos, J. L. Fernandez–Turiel, D. Gimeno, K. Vouvalidis, K. Christos)

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In this paper a total of seven samples (a river sediment, two surface soil samples, and four surrounding rocks) from the Pangaion area, Northern Greece, were collected and analyzed for their content in 10 major (Al, Ca, Cl, Fe, K, Mg, Na, P, S, and Si) and 32 trace elements (Ag, As, B, Ba, Cd, Ce, Co, Cr, Cs, Cu, Ga, Ge, Hg, La, Li, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sn, Sr, Th, Ti, U, V, W, Y, Zn, and Zr). The sampling was based on the major geomorphological processes of the area. The two soil samples are typical of the...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

THE HISTORY OF MINING AND RECLAMATION AND FIRST EXPERIENCE WITH NEW ECOLOGICAL RESTORATION METHODS IN NORTH-WESTERN BOHEMIA REGION

(SGEM Scientific GeoConference, 2006, M. Rehor, T. Lang)

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The North-Western Bohemia region takes a unique position in the history of mining in the Czech Republic. Several ore districts are situated here, the welfare of which influenced the development of the Czech state in some periods. Some precious stones mining was also significant. Today the North-Bohemian Basin area is known for its largest Czech brown coal deposit. Whereas ore mining in the region extinguished and the other raw materials mining has relatively small significance, coal mining and the restoration of d...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

THE IMPORTANCE OF PARTICLE SIZE DISTRIB UTION AFTER BLASTING AND ARRANGEMENT STUDIES ON THIS BASIS

(SGEM Scientific GeoConference, 2006, U. Ozer, K. Ozdemir, A. Kahriman, A. Karadogan)

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In the condition that drilling and blasting technique is inevitable depending on the rock mass and material characteristics on mining activities, the fragmentation rate and particle size distribution of the muckpile after blasting has important influences on the performance of subsequent mining activities such as loading, hauling, crushing, grinding etc. and the total costs of that mine. Drilling and blasting is an important step in this process chain and it’s results such as fragmentation, muckpile shape and lo...

Geology2006
6th International Scientific Conference - SGEM
Publication

THE INVESTIGATION OF GOLD AND SILVER RECOVERY FROM AKOLUK (ORDU -TURKEY) ORE

(SGEM Scientific GeoConference, 2006, O. Celep, I. Alp, H. Deveci, M. Vicil, T. Yilmaz)

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In this study, the amenability of Akoluk (Ordu -Turkey) ore to the extraction of gold and silver by cyanide leaching was investigated. Mineralogical analysis of the ore has revealed the presence of native gold and a variety of minerals including barite, zinkenite, stibnite, orpiment, realgar, cinnober, pyrite and sphalerite. No silver was detectable under microscope suggesting that it could be present as occluded in minerals such as fahlerz, antimonite and zinkenite. Gold particles as 1-88 $\mu$m in size were obse...

Geology2006
6th International Scientific Conference - SGEM
Publication

TRACE ELEMENTS IN FLY ASHES FROM “VARNA”, “BOBOV DOL”, “MARITZA IZTOK I”, “MARITZA ІІІ”, „REPUBLIKA” AND “ROUSSE IZTOK” POWER PLANTS, BULGARIA

(SGEM Scientific GeoConference, 2006, A. Shoumkova, V. Stoyanova)

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A comparative study of the content of five macro- and about fifty micro- and trace elements in fly ashes from six coal-burning power plants in Bulgaria is carried out by means of a combination of Chemical Analysis, AAS, X-Ray Luminescence and X-Ray Fluorescence EDA. The elements’ distribution among and within single particles is investigated on the base of the comparison of data from bulk analysis, micro-analysis, and the results from acid leaching tests using 0.1M HNO3. It is established that many heavy metals ...

Ecology and Environmental Protection2006
6th International Scientific Conference - SGEM
Publication

USAGE OF DYNAMIC STRUCTURES FOR SHORT RECORD OF LARGE MATRICES

(SGEM Scientific GeoConference, 2006, P Maldzhanski)

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Using static and dynamic structures compares the possibilities for a short record of large matrices by using static and dynamic structures. The algorithms for solving linear systems and the ways for short record of the matrices used in them are observed. Special ways for presenting matrices as packages and the efficiency of the algorithms when realized with the help of dynamic and static structures are described. Examples of realized program systems are shown when analyzing geodesic data.

Informatics2006
Showing 1-50 of 51 records