WorldWideScience

Sample records for mining products telephones

  1. Oil shale mines and their realizable production

    International Nuclear Information System (INIS)

    Habicht, K.

    1994-01-01

    The production of Estonian oil shale depends on its marketing opportunities. The realizable production is a function of the oil shale price, which in turn depends on production costs. The latter are dependent on which mines are producing oil shale and on the volume of production. The purpose of the present article is to analyze which mines should operate under various realizable production scenarios and what should be their annual output so that the total cost of oil shale production (including maintenance at idle mines) is minimized. This paper is also targeted at observing the change in the average production cost per ton of oil shale depending on the realizable output. The calculations are based on data for the first four months of 1993, as collected by N. Barabaner (Estonian Academy of Sciences, Institute of Economy). The data include the total production volume and production cost from the mines of RE 'Eesti Polevkivi' (State Enterprise 'Estonian Oil Shale'). They also project expenses from mine closings in case of conservation. The latter costs were allocated among mines in direct proportion to their respective number of employees. (author)

  2. Application of Discrete Event Simulation in Mine Production Forecast

    African Journals Online (AJOL)

    Application of Discrete Event Simulation in Mine Production Forecast. Felix Adaania Kaba, Victor Amoako Temeng, Peter Arroja Eshun. Abstract. Mine production forecast is pertinent to mining as it serves production goals for a production period. Perseus Mining Ghana Limited (PMGL), Ayanfuri, deterministically forecasts ...

  3. 30 CFR 56.12069 - Lightning protection for telephone wires and ungrounded conductors.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Lightning protection for telephone wires and... NONMETAL MINES Electricity § 56.12069 Lightning protection for telephone wires and ungrounded conductors... lightning shall be equipped with suitable lightning arrestors of approved type within 100 feet of the point...

  4. 30 CFR 57.12069 - Lightning protection for telephone wires and ungrounded conductors.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Lightning protection for telephone wires and... AND NONMETAL MINES Electricity Surface Only § 57.12069 Lightning protection for telephone wires and... exposed to lightning shall be equipped with suitable lightning arrestors of approved type within 100 feet...

  5. Australian Mining's product register 1992-93

    Energy Technology Data Exchange (ETDEWEB)

    1993-01-01

    This annual product register contains an assessment of resources in Australia; statistical information on mine production of principal minerals; mineral industry statistics; directory of exploration and mining companies; buyers' guide; directory of consultants; list of services and a company index.

  6. Uran production at the Drosen mine

    International Nuclear Information System (INIS)

    Sittner, Helmar; Duschek, Bernd

    2009-01-01

    In September 1950, SAG Wismuth started the geological and mining work at the area Ronneburg. In the year 1982, the last mine at Drosen took up the underground mining. Still no empirical values were present for the controlling of the underground production. The contribution under consideration reports on first efforts to the determination of geological-qualitative indices of uranium exploitation. At 1st September, 1982, the pits 403 and 415 of the mine Drosen took up the underground mining of uranium

  7. Australian Mining's product register 1990-91

    Energy Technology Data Exchange (ETDEWEB)

    1990-01-01

    The Australian Minings' Product Register 1990-91 contains an industry review, resource assessment, mineral industry statistics, directory of exploration and mining companies, buyers guide and directory of consultants.

  8. Management present situation and countermeasures of coal mines safety in production

    Institute of Scientific and Technical Information of China (English)

    ZHANG Shu-dong; YU Chang-wu

    2008-01-01

    Analyzed of the present situation of Chinese coal mines safety in production and the reasons for coal mining accident, and realized the coal mines safety in production,which should increase the legal safeguards of coal mine safety in production, and safety input, established the comprehensive coal mine safety evaluation system, comprehensively enhance quality of coal mine workers, established and improved early warning mechanism of safety production of coal mine.

  9. Application of Discrete EventSimulation in Mine Production Forecast*

    African Journals Online (AJOL)

    Michael

    2016-06-01

    Jun 1, 2016 ... Mine production forecast is pertinent to mining as it serves production ... Besides the inability of this method to mimic the .... management and truck operators understood the ..... Mining Engineering Handbook, Hartman, H. L..

  10. Methods and measures of enhancing production capacity of uranium mines

    International Nuclear Information System (INIS)

    Ni Yuhui

    2013-01-01

    Limited by resource conditions and mining conditions, the production capacity of uranium mines is generally small. The main factors to affect the production capacity determination of uranium mines are analyzed, the ways and measures to enhance the production capacity of uranium mines are explored from the innovations of technology and management mode. (author)

  11. Green Mines green energy : establishing productive land on mine tailings

    Energy Technology Data Exchange (ETDEWEB)

    Tisch, B.; Zinck, J.; Vigneault, B. [Natural Resources Canada, Ottawa, ON (Canada). CANMET Mining and Mineral Sciences Laboratories

    2009-02-15

    The Green Mines green energy research project was initiated by the CANMET Mining and Mineral Sciences Laboratories of Natural Resources Canada. The objective of the initiative was to demonstrate that organic residuals could be used to remediate mine tailings and establish agriculturally productive land where energy crops such as corn, canola, soy, switchgrass and other species could be grown and harvested specifically as feedstock for the production of green fuels. This paper discussed the scope and progress to date of the Green Mines green energy project. This included discussion about a column leaching study and about effluent treatability and toxicity. Neutralization test results and the results of field trials were presented. The paper concluded with a discussion of next steps. An advisory committee has been established to review annual progress and establish research directions. Overall, preliminary results from the column study suggest that sulphate reduction at the tailings-biosolids interface is occurring, although steady state has not yet been reached after more than one year of testing. 1 tab., 3 figs.

  12. Green Mines green energy : establishing productive land on mine tailings

    International Nuclear Information System (INIS)

    Tisch, B.; Zinck, J.; Vigneault, B.

    2009-01-01

    The Green Mines green energy research project was initiated by the CANMET Mining and Mineral Sciences Laboratories of Natural Resources Canada. The objective of the initiative was to demonstrate that organic residuals could be used to remediate mine tailings and establish agriculturally productive land where energy crops such as corn, canola, soy, switchgrass and other species could be grown and harvested specifically as feedstock for the production of green fuels. This paper discussed the scope and progress to date of the Green Mines green energy project. This included discussion about a column leaching study and about effluent treatability and toxicity. Neutralization test results and the results of field trials were presented. The paper concluded with a discussion of next steps. An advisory committee has been established to review annual progress and establish research directions. Overall, preliminary results from the column study suggest that sulphate reduction at the tailings-biosolids interface is occurring, although steady state has not yet been reached after more than one year of testing. 1 tab., 3 figs

  13. Farco Mining makes productivity gains using emulsion-Anfo blends

    Energy Technology Data Exchange (ETDEWEB)

    Lewis, N. [Nelson Brothers, Inc., Parrish, AL (United States)

    1995-02-01

    Describes the use of a 40:60 emulsion: Auto blend for overburden removal at Farco Minings surface coal mine near Laredo, Texas. The use of this explosives mixture maximized the explosive per foot of blasthole, increasing overburden removal to 925,000 buy per month and improving mine productivity. Increases in powder factors produced further increases in cast yardage and mine production. 2 figs.

  14. Life cycle assessment of opencast coal mine production: a case study in Yimin mining area in China.

    Science.gov (United States)

    Zhang, Li; Wang, Jinman; Feng, Yu

    2018-03-01

    China has the largest coal production in the world due to abundant resource requirements for economic development. In recent years, the proportion of opencast coal mine production has increased significantly in China. Opencast coal mining can lead to a large number of environmental problems, including air pollution, water pollution, and solid waste occupation. The previous studies on the environmental impacts of opencast coal mine production were focused on a single production process. Moreover, mined land reclamation was an important process in opencast coal mine production; however, it was rarely considered in previous research. Therefore, this study attempted to perform a whole environmental impact analysis including land reclamation stage using life cycle assessment (LCA) method. The Yimin opencast coal mine was selected to conduct a case study. The production of 100 tons of coal was used as the functional unit to evaluate the environmental risks in the stages of stripping, mining, transportation, processing, and reclamation. A total of six environmental impact categories, i.e., resource consumption, acidification, global warming, solid waste, eutrophication, and dust, were selected to conduct this assessment. The contribution rates of different categories of environmental impacts were significantly different, and different stages exhibited different consumption and emissions that gave rise to different environmental effects. Dust was the most serious environmental impact category, and its contribution rate was 36.81%, followed by global warming and acidification with contribution rates of 29.43% and 22.58%, respectively. Both dust and global warming were mainly affected in mining stage in Yimin opencast coal mine based on comprehensive analysis of environmental impact. Some economic and feasible measures should be used to mitigate the environmental impacts of opencast coal mine production, such as water spraying, clean transportation, increasing processing

  15. Preliminary analysis about reducing production costs in uranium mining and metallurgy at Fuzhou uranium mine

    International Nuclear Information System (INIS)

    Wu Sanmao

    1999-01-01

    The production costs in uranium ming and metallurgy have been analyzed quantitatively term by term according to present production situation for The Uranium Mining and Metallurgy Corp, which is part of Fuzhou Uranium Mine. The principal factors influencing on the production costs and the main means reducing the production costs have been found

  16. Uranium production, exploration and mine development in Canada

    International Nuclear Information System (INIS)

    Vance, R. E

    2006-01-01

    Full text: Full text: Canada has been the world leader in uranium production since the early 1990's and production in 2005 was 11,629 te U. The Elliott Lake region of Ontario was once the centre of production, but after the last facilities closed in 1996, all production now comes from the Athabasca Basin in northern Saskatchewan. Average grades of the world's two largest high grade deposits at McArthur River and Cigar Lake are 10 to 100 times the grade of deposits mined elsewhere. McArthur River has been in production since late 1999 and first production from Cigar Lake is expected in 2007. If all expansion and probable mine openings come to fruition, annual Canadian production could amount to 16,000 te U by 2011. All currently operating uranium mines have been the subject of a comprehensive environmental assessment and review process. Uranium mining brings significant benefits to local area residents in northern Saskatchewan. Residents of northern Saskatchewan are active participants in Environmental Quality Committees. Recent survey results show the majority of Saskatchewan residents support the continuation of uranium mining in the province. The closed uranium mines in Canada have been successfully decommissioned and rehabilitated in particular in the Elliott Lake region of Ontario. The principle exploration target in Canada remains the Athabasca Basin, but activity has also been reported in several of the other territories and provinces. Natural Resources Canada estimates that some $CAN81M was spent on exploration in Canada in 2005. Under the Canadian Constitution, natural resources are owned by the provinces or by the federal government if they are on federal lands north of 60 0 C latitude. The provinces have jurisdiction over exploration activities within their borders and for most commodities have jurisdiction over mine development and production, operations, health and safety and environmental matters. Once a company starts to develop a deposit into a mine

  17. Mining, Pollution and Agricultural Productivity: Evidence from Ghana

    OpenAIRE

    Fernando Aragon; Juan Pablo Rud

    2012-01-01

    Most modern mines in the developing world are located in rural areas, where agriculture is the main source of livelihood. This creates the potential of negative spillovers to farmers through competition for key inputs (such as land) and environmental pollution. To explore this issue, we examine the case of gold mining in Ghana. Through the estimation of an agricultural production function using household level data, we find that mining has reduced agricultural productivity by almost 40%. This...

  18. Economical Recovery of By-products in the Mining Industry

    Energy Technology Data Exchange (ETDEWEB)

    Berry, J.B.

    2001-12-05

    The U.S. Department of Energy (DOE) Office of Industrial Technologies, Mining Industry of the Future Program, works with the mining industry to further the industry's advances toward environmental and economic goals. Two of these goals are (1) responsible emission and by-product management and (2) low-cost and efficient production (DOE 1998). DOE formed an alliance with the National Mining Association (NMA) to strengthen the basis for research projects conducted to benefit the mining industry. NMA and industry representatives actively participate in this alliance by evaluating project proposals and by recommending research project selection to DOE. Similarly, the National Research Council (NRC) has recently and independently recommended research and technology development opportunities in the mining industry (NRC 2001). The Oak Ridge National Laboratory (ORNL) and Colorado School of Mines engineers conducted one such project for DOE regarding by -product recovery from mining process residue. The results of this project include this report on mining industry process residue and waste with opportunity for by-product recovery. The U.S. mineral processing industry produces over 30,000,000 metric tons per year of process residue and waste that may contain hazardous species as well as valuable by-products. This study evaluates the copper, lead, and zinc commodity sectors which generate between 23,300,000 and 24,000,000 metric tons per year. The distribution of residual elements in process residues and wastes varies over wide ranges* because of variations in the original ore content as it is extracted from the earth's crust. In the earth's crust, the elements of interest to mining fall into two general geochemical classifications, lithophiles and chalcophiles** (Cox 1997). Groups of elements are almost always present together in a given geochemical classification, but the relative amounts of each element are unique to a particular ore body. This paper

  19. The productivity-inflation nexus: the case of the Australian mining sector

    International Nuclear Information System (INIS)

    Mahadevan, R.; Asafu Adjaye, J.

    2005-01-01

    This paper examines the causal links between productivity growth and two price series given by domestic inflation and the price of mineral products in Australia's mining sector for the period 1968/1969 to 1997/1998. The study also uses a stochastic translog cost frontier to generate improved estimates of total factor productivity (TFP) growth. The results indicate negative unidirectional causality running from both price series to mining productivity growth. Regression analysis further shows that domestic inflation has a small but adverse effect on mining productivity growth, thus providing some empirical support for Australia's 'inflation first' monetary policy, at least with respect to the mining sector. Inflation in mineral price, on the other hand, has a greater negative effect on mining productivity growth via mineral export growth. (author)

  20. Productivity assessment of an opencast coal mine: a case study

    Energy Technology Data Exchange (ETDEWEB)

    Yadav, M.K.; Bhar, C. [Indian School of Mines, Dhanbad (India). Dept. of Management Studies

    2006-07-01

    An assessment was conducted at an opencast coalmine located in Jharia coalfield. The mine is using shovel-dumper combination for winning coal. The study covers the computation of partial productivities as well as total productivity status of the mine at an aggregate level whereas partial productivities highlight the efficiency in the use of various resources. A statistical analysis among the different productivity indices has been carried out to identify the criticality of different input factors. Accordingly appropriate strategies can be devised for improving productivity of the mine. 2 figs., 6 tabs.

  1. Analysis on safety production in coal mines Henan Province

    Institute of Scientific and Technical Information of China (English)

    KONG Liu-an; ZHANG Wen-yong

    2006-01-01

    Based on the rigorous situation of safety production in coal mines, the paper analyzed the statistical data of recent accidents indexes in Henan's coal mines. Using investigation and comparison analysis methods, a specified analysis on mining conditions, technical facility level, safety input and vocational quality of workers in Henan's coal mines was conducted. The result indicates that there have been existing such main safety production problems as weak safety management, low-level facilities, inadequate safety input and poor vocational quality and so on. Finally it proposes such reference solutions as to establish and perfect coal mining supervision and management system, to increase safety investment into techniques and facilities and to strengthen workers' safety education and introduction of more high-level professional talents.

  2. Application of the coal-mining waste in building ceramics production

    Directory of Open Access Journals (Sweden)

    Vaysman Yakov Iosifovich

    Full Text Available In the process of construction ceramics production a substantial quantity of non-renewable natural resources - clays - are used. One of the ways of science development in building materials production is investigation of the possibility of regular materials production using technogenic waste. Application of coal-mining waste (technogenic raw material in charge composition for production of ceramic products provides rational use of fuel, contributes to implementation of resource saving technologies on construction materials production enterprises. Though science development on revealing new raw material sources should be conducted with account for safety, reliability, technical, ecological and economical sides of the problem, which is especially current. The article deals with the problem of coal-mining waste usage in building ceramics production instead of fresh primary component (clay, fluxes, thinning agents and combustible additives. The interdependence between the density and shrinkage of the ceramic products and the amount and quality of coal-mining waste in its composition was established. The optimal proportion of coal-mining waste and clay in building ceramics production was estimated.

  3. Open-pit coal mine production sequencing incorporating grade blending and stockpiling options: An application from an Indian mine

    Science.gov (United States)

    Kumar, Ashish; Chatterjee, Snehamoy

    2017-05-01

    Production scheduling is a crucial aspect of the mining industry. An optimal and efficient production schedule can increase the profits manifold and reduce the amount of waste to be handled. Production scheduling for coal mines is necessary to maintain consistency in the quality and quantity parameters of coal supplied to power plants. Irregularity in the quality parameters of the coal can lead to heavy losses in coal-fired power plants. Moreover, the stockpiling of coal poses environmental and fire problems owing to low incubation periods. This article proposes a production scheduling formulation for open-pit coal mines including stockpiling and blending opportunities, which play a major role in maintaining the quality and quantity of supplied coal. The proposed formulation was applied to a large open-pit coal mine in India. This contribution provides an efficient production scheduling formulation for coal mines after utilizing the stockpile coal within the incubation periods with the maximization of discounted cash flows. At the same time, consistency is maintained in the quality and quantity of coal to power plants through blending and stockpiling options to ensure smooth functioning.

  4. Basic status of uranium mine production at the beginning of the new century

    International Nuclear Information System (INIS)

    Tan Chenglong

    2005-01-01

    At the beginning of the new century, the global uranium mine production declined slightly, the spot uranium price was close to or slightly higher than that of the last century. The uranium consumption in global nuclear electricity generation does not fluctuate greatly, remains stable as a whole. Although certain accidents have taken place during the period of uranium mine production, uranium production remains stable, uranium's demand and supply remain balanced basically. In the global uranium mine production at the beginning of the new century, production from hard rock uranium mines still plays the leading role, and production from in-situ leachable sandstone-type uranium mines increases by a small margin and makes up one fifth of the total global uranium mine production. Several transnational uranium industry companies have become the main stockholders of low cost uranium production centers all around the world. Most mining uranium deposits and uranium production centers have centralized in a few countries. The globalized distribution of uranium resources during the progress of the world's economy globalization has taken shape in the uranium industry. (authors)

  5. 78 FR 29780 - Fees for Testing, Evaluation, and Approval of Mining Products

    Science.gov (United States)

    2013-05-21

    ... Approval of Mining Products AGENCY: Mine Safety and Health Administration, Labor. ACTION: Notice. SUMMARY..., and approval of mining products; it allows MSHA to collect fees up to $2,499,000 for the testing, evaluation, and approval of certain mining equipment. MSHA is continuing to collect these fees for 2013 as...

  6. Green mines green energy : establishing productive land on mine tailings

    Energy Technology Data Exchange (ETDEWEB)

    Tisch, B.; Zinck, J.; Vigneault, B. [Natural Resources Canada, Ottawa, ON (Canada). CANMET Mining and Mineral Sciences Laboratories

    2008-07-01

    Municipal governments and provincial regulators are under increasing pressure to divert clean organic waste materials from landfill sites and establish productive uses for them. This article described the Natural Resources Canada (NRCan) CANMET Green Mines Green Energy consortium. Composed of mining, forestry, government, and academic representatives, the consortium's aim is to expand the use of organic waste residuals in the rehabilitation of mine sites for use as a feedstock in biofuel production. The program's themes include: (1) determining the conditions required to maximize growth; (2) investigating the interaction of various organic covers on tailings pore water, effluent and mineralogy; (3) investigating the potential economic and environmental impacts on all relevant sectors; and (4) disseminating findings to all relevant stakeholders. Tests are currently being conducted to determine the potential impact of municipal waste materials on tailings oxidation and effluent chemistry. The effect of biosolids and compost-derived dissolved organic carbon on effluent treatability and toxicity is also being investigated. Results from the investigations to date suggest that sulfate reduction at the tailings-biosolids interface is taking place. It was concluded that steady state has not yet been reached after a 1 year period. 10 refs., 1 tab., 7 figs.

  7. Quartzite mining waste for adhesive mortar production

    International Nuclear Information System (INIS)

    Dias, L.S.; Mol, R.M.R.; Silva, K.D.C.; Campos, P.A.M.; Mendes, J.C.; Peixoto, R.A.F.

    2016-01-01

    The construction sector is responsible for a high consumption of natural resources. Moreover, the mining industry generates and discard waste improperly in the environment aggravating environmental problems. In order to reduce the natural sand extraction and provide the environmentally correct disposal of mining waste, this work proposes the use of quartzite mining waste to replace natural sand for the production of adhesive mortars. The quartzite mining tailings was chemically characterized using X-ray fluorescence, and morphologically by optical microscopy. In sequence, the mortars were subjected to characterization tests in the fresh state as consistency index, slip, water retention, entrained air content, bulk density and Squeeze Flow. The results were satisfactory, indicating the viability of this material as fine aggregate in total replacement of natural aggregate, allowing the reduction of environmental impacts. (author)

  8. 75 FR 82074 - Fee Adjustment for Testing, Evaluation, and Approval of Mining Products

    Science.gov (United States)

    2010-12-29

    ..., and Approval of Mining Products AGENCY: Mine Safety and Health Administration (MSHA), Labor. ACTION..., evaluating, and approving mining products as provided by 30 CFR part 5. MSHA charges applicants a fee to... materials manufactured for use in the mining industry. The new fee schedule, effective January 1, 2011, is...

  9. Sustainable production program in the Mexican mining industry: occupational risks

    Directory of Open Access Journals (Sweden)

    Andrea Zavala Reyna

    2015-07-01

    Full Text Available Speaking of mining and sustainability sounds contradictory, as the environmental impact generated by resource extraction is well known. However, there are mining companies that are working to be safe and environmentally friendly. An example of this is presented in this study aimed at identifying occupational risks generated by the activities of a small-scale gold and silver mine located in northwestern Mexico. The methodology followed was a Sustainable Production Program (SPP based on a continuous cycle of five steps in which the tools of cleaner production and pollution prevention are adapted. As a result of this project, it was possible to implement SPP activities: training for workers, use of personal protective equipment and adequate handling of chemicals. As a conclusion, it was verified that SPP application helped this mining company move towards sustainable patterns of production.

  10. 30 CFR 77.508 - Lightning arresters, ungrounded and exposed power conductors and telephone wires.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Lightning arresters, ungrounded and exposed... AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Electrical Equipment-General § 77.508 Lightning... conductors and telephone wires shall be equipped with suitable lightning arresters which are adequately...

  11. Cleaner Production in the mining

    International Nuclear Information System (INIS)

    Pinto Martinez, Elias

    2004-01-01

    systematic process, which is not applied once, but permanently, in each one of the phases of the cycle of life. In this context, the cleanest technology is only an integral, but partial element, inside the concept of cleaner production, since this includes other elements like the attitudes and practical managerial of continuous improvement of the environmental administration. In other words it is looked for to prevent and to minimize the impacts and risks efficiently to the human beings and the environment, guaranteeing the environmental protection, the economic growth, the social well-being and the managerial competitiveness, starting from introducing the environmental dimension in the productive sectors, as an it challenged of long term. Inside the limits related with mining the politics of cleaner production is contemplated that seeks to give a mark not directed toward the rational and sustainable exploitation of the natural resources renewable with the reinforcement and articulation of the tools and instruments of sectoral character. The cleanest production has been able to be internalized in the new Mines Code, that establishes the objective in its first article it contemplates that its use (of minerals) it is not carried out in form harmonica with the principles and norms of rational exploitation of the natural resources renewable and of the atmosphere, inside an integral concept of sustainable development and of the economic and social invigoration of the country. In the politics' s of cleaner production development it has occurred special impulse to the development of the environmental centers miner as a half appropriate of technological transfer that with investigation, development and diffusion of technical and technologies of clean production, mainly in the auriferous mining that they can enlarge their services to other minerals, they look for to diminish the technical and technological limitations that have made of the exploitation of the mineral resources, a

  12. Possibility of applying mechanized coal mining in the mine 'Soko', with the comparative advantages of production results and impact

    Directory of Open Access Journals (Sweden)

    Denić Miodrag

    2014-01-01

    Full Text Available Mining method applied in the RMU 'Soko', is repeatedly technologically modified and reached the maximum limit in terms of productivity, level of job performance and safety at work. And all the other methods, which are in the technological process of obtaining coal rely on the technology of drilling-blasting works, in terms of the mine 'Soko', can not allow mass production of coal, regarding natural and technical-technological conditions prevailing in Sokobanja coal basin. Therefore, this paper proposes a possible solution which would enable a significant increase in annual production by appling mechanized coal mining system.

  13. Quantifying the link between crop production and mined groundwater irrigation in China.

    Science.gov (United States)

    Grogan, Danielle S; Zhang, Fan; Prusevich, Alexander; Lammers, Richard B; Wisser, Dominik; Glidden, Stanley; Li, Changsheng; Frolking, Steve

    2015-04-01

    In response to increasing demand for food, Chinese agriculture has both expanded and intensified over the past several decades. Irrigation has played a key role in increasing crop production, and groundwater is now an important source of irrigation water. Groundwater abstraction in excess of recharge (which we use here to estimate groundwater mining) has resulted in declining groundwater levels and could eventually restrict groundwater availability. In this study we used a hydrological model, WBMplus, in conjunction with a process based crop growth model, DNDC, to evaluate Chinese agriculture's recent dependence upon mined groundwater, and to quantify mined groundwater-dependent crop production across a domain that includes variation in climate, crop choice, and management practices. This methodology allowed for the direct attribution of crop production to irrigation water from rivers and reservoirs, shallow (renewable) groundwater, and mined groundwater. Simulating 20 years of weather variability and circa year 2000 crop areas, we found that mined groundwater fulfilled 20%-49% of gross irrigation water demand, assuming all demand was met. Mined groundwater accounted for 15%-27% of national total crop production. There was high spatial variability across China in irrigation water demand and crop production derived from mined groundwater. We find that climate variability and mined groundwater demand do not operate independently; rather, years in which irrigation water demand is high due to the relatively hot and dry climate also experience limited surface water supplies and therefore have less surface water with which to meet that high irrigation water demand. Copyright © 2014 Elsevier B.V. All rights reserved.

  14. Geostatistics applied in mine production planning

    Energy Technology Data Exchange (ETDEWEB)

    Zerdin, F.; Markic, S.; Subelj, A. [NTF, Ljubljana (Slovenia)

    1998-07-01

    Long-term plan for lignite mine Velenje has been made by using a technical 'parametrisation' method where the basis for periodic, middle-term and short-term plans as well as for scheduling has already been fixed. Plans are presented by grade (heating value in GJ), quantity of ROM coal in tons and quantity of excavated material in cubic metre for each sequence of the seam or whole seam as well as for all working seams in the mines as a whole which correspond to a defined time period. Grade planning aims at achieving uniform product quality to meet contractual obligations. 17 refs., 10 figs.

  15. Positioning for a positive future: Cigar Lake mine starts production

    International Nuclear Information System (INIS)

    Gitzel, Tim

    2014-01-01

    This presentation includes forward-looking information or forward-looking statements under Canadian and U.S. securities laws, including our expectations regarding future world electricity consumption, the number of net new reactors we expect to be built, our expectations regarding future uranium supply and demand, our future uranium production targets and forecasts, and our forecasts relating to mining, mine life, production, development and other activities

  16. Assessment of Quantitative Aftershock Productivity Potential in Mining-Induced Seismicity

    Science.gov (United States)

    Kozłowska, Maria; Orlecka-Sikora, Beata

    2017-03-01

    Strong mining-induced earthquakes exhibit various aftershock patterns. The aftershock productivity is governed by the geomechanical properties of rock in the seismogenic zone, mining-induced stress and coseismic stress changes related to the main shock's magnitude, source geometry and focal mechanism. In order to assess the quantitative aftershock productivity potential in the mining environment we apply a forecast model based on natural seismicity properties, namely constant tectonic loading and the Gutenberg-Richter frequency-magnitude distribution. Although previous studies proved that mining-induced seismicity does not obey the simple power law, here we apply it as an approximation of seismicity distribution to resolve the number of aftershocks, not considering their magnitudes. The model used forecasts the aftershock productivity based on the background seismicity level estimated from an average seismic moment released per earthquake and static stress changes caused by a main shock. Thus it accounts only for aftershocks directly triggered by coseismic process. In this study we use data from three different mines, Mponeng (South Africa), Rudna and Bobrek (Poland), representing different geology, exploitation methods and aftershock patterns. Each studied case is treated with individual parameterization adjusted to the data specifics. We propose the modification of the original model, i.e. including the non-uniformity of M 0, resulting from spatial correlation of mining-induced seismicity with exploitation. The results show that, even when simplified seismicity distribution parameters are applied, the modified model predicts the number of aftershocks for each analyzed case well and accounts for variations between these values. Such results are thus another example showing that coseismic processes of mining-induced seismicity reflect features of natural seismicity and that similar models can be applied to study the aftershock rate in both the natural and the

  17. Production of uranium in Navoi Mining and Metallurgy Combinat, Uzbekistan

    International Nuclear Information System (INIS)

    Kuchersky, N.; Tolstov, E.A.; Mazurkevich, A.P.; Inozemzev, S.B.

    2001-01-01

    Full text: Under the conditions of constantly increasing level of development of the nuclear power, it is inevitable that the uranium stockpiles accumulated to 1985 will soon be depleted. This consideration underlies the development concept of uranium production in the Navoi Mining and Metallurgy Combinat, Uzbekistan. Because this product has become a source of hard currency revenues for the Republic, there will be a significant increase in the processed ore and output of uranium oxide within the next few years. Uranium production in the Navoi Mining and Metallurgy Combinat represents a full-cycle operations ranging from geological survey through hydrometallurgical processing resulting in the output of uranium concentrate in the form of uranium protoxide-oxide (U 3 O 8 ). The NMMC uranium operations include the Hydrometallurgical Plant and three facilities accomplishing ISL mining facilities. A successful start on the development of the Uchkuduk deposit by ISL method in the 1960s gave rise to scientific and production approach for development of other uranium deposits of the infiltration bedded (sandstone) type. Uranium recovery by ISL has become a separate mining branch within the 30-year period of its history and the contribution of this branch in uranium production has steadily grown. Since 1995 all uranium produced by Navoi Mining and Metallurgy Combinat is attributed to ISL. During this evolution period of the ISL method, a whole range of systematic scientific research and practical works were carried out covering improvement of process flowsheets, equipment, operational methods and techniques for particular mining conditions at those specific sites. In co-operation with design and scientific research institutions, a significant number of scientific researches, test works, design and engineering projects were achieved in order to create optimal conditions for ISL mining and further processing of pregnant solutions by sorption as well as to appropriately equip

  18. Energy conservation opportunities: audit vis-a-vis mine productivity

    Energy Technology Data Exchange (ETDEWEB)

    Iyer, G.H.

    2009-07-01

    Mining operation, whether opencast or underground, with modern equipment is highly energy intensive, needing energy conservation and management to ensure efficiency, cost effectiveness, and overall productivity. Exhaustible primary energy resources such as coal, lignite, oil, and nuclear fuels are being mined out to meet our energy needs. An attempt has been made in this paper to highlight the energy conservation opportunities, energy audit, the relevant Energy Conservation Act 2001 and certain energy saving measures leading to higher productivity followed by a few case study examples. 3 refs.

  19. Mine dirt production. Produccion de esteriles del carbon

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Canibano, J [HUNOSA, Madrid (Spain)

    1990-02-01

    The article deals with the production of dirt from coal mines in various countries giving an idea of the huge quantities of waste material generated by the mining industry. Discusses the difficulty of finding industrial applications for such large amounts of material with the aim of solving and/or minimising the problems created by this waste matter, namely, pollution, degradation of the countryside, storage, etc. 25 refs., 11 tabs., 14 figs.

  20. Fact sheet on uranium exploration, mining production and environmental protection

    International Nuclear Information System (INIS)

    2006-01-01

    During the last 3 years, there has been a dramatic revival and comeback of the uranium industry in the light of the expanding nuclear power programme all over the world. As a result, there has been a boom in uranium exploration, mining and production activities to meet the higher demand of uranium and reduce the gap between uranium demand and uranium supply from mines. In coming years, additional requests for TC, training/workshop and CRPs are expected in the areas of: 1) advanced aerial and ground geophysical techniques for discovery of new deposits which could be deeply buried; 2) investigations of uranium sources in sedimentary, igneous and metamorphic environments; 3) In-Situ leaching (ISL) of uranium deposits; 4) advanced acid/alkali leaching of low, medium and high grade uranium ores and purification of uranium; 5) reclamation of used uranium mines and related environmental protection issues; and 6) uranium supply, demand and market issues. Services provided by the Nuclear Fuel Cycle and Materials Section could be workshops and hands-on field trainings at National and/or Regional levels in mines, mills and sites covering the following activities: uranium exploration involving conventional and advanced geophysical techniques and instruments, advanced drilling equipment and tools, etc.; uranium mining (open-cast and underground), recovery and purification by acid/alkali leaching, In-Situ leaching (ISL), purification by conventional and advanced solvent extraction and ion exchange techniques and concentration of uranium in the form of yellowcake (ammonium diuranate, magnesium diuranate and uranium peroxide); promoting best practices in uranium mining and milling (including tailing pond), covering environmental issues, reclamation of used uranium mines and chemistry of uranium production cycle and ground water and sustainability of uranium production. Member States interested in uranium geology, exploration, mining, milling, purification and environmental issues

  1. Mining Intention-Related Products on Online Q & A Community

    Institute of Scientific and Technical Information of China (English)

    段俊文; 陈毅恒; 刘挺; 丁效

    2015-01-01

    User generated content on social media has attracted much attention from service/product providers, as it contains plenty of potential commercial opportunities. However, previous work mainly focuses on user consumption intention (CI) identification, and little effort has been spent to mine intention-related products. In this paper, focusing on the Baby &Child Care domain, we propose a novel approach to mine intention-related products on online question and answer (Q&A) community. Making use of the question-answering pairs as data source, we first automatically extract candidate products based on dependency parser. And then by means of the collocation extraction model, we identify the real intention-related products from the candidate set. The experimental results on our carefully constructed evaluation dataset show that our approach achieves better performance than two natural baseline methods.

  2. Comprehensive Technical Support for High-Quality Anthracite Production: A Case Study in the Xinqiao Coal Mine, Yongxia Mining Area, China

    Directory of Open Access Journals (Sweden)

    Wei Zhang

    2015-12-01

    Full Text Available The effective production of high-quality anthracite has attracted increasing global attention. Based on the coal occurrence in Yongxia Mining Area and mining conditions of a coalface in Xinqiao Coal Mine, we proposed a systematic study on the technical support for the production of high-quality anthracite. Six key steps were explored, including coal falling at the coalface, transport, underground bunker storage, main shaft hoisting, coal preparation on the ground, and railway wagon loading. The study resulted in optimized running parameters for the shearers, and the rotating patterns of the shearer drums was altered (one-way cutting was employed. Mining height and roof supporting intensity were reduced. Besides, loose presplitting millisecond blasting and mechanized mining were applied to upgrade the coal quantity and the lump coal production rate. Additionally, the coalface end transloading, coalface crush, transport systems, underground storage, and main shaft skip unloading processes were improved, and fragmentation-prevention techniques were used in the washing and railway wagon loading processes. As a result, the lump coal production rate was maintained at a high level and fragmentation was significantly reduced. Because of using the parameters and techniques determined in this research, high-quality coal production and increased profits were achieved. The research results could provide theoretical guidance and methodology for other anthracite production bases.

  3. Integrated system of production information processing for surface mines

    Energy Technology Data Exchange (ETDEWEB)

    Li, K.; Wang, S.; Zeng, Z.; Wei, J.; Ren, Z. [China University of Mining and Technology, Xuzhou (China). Dept of Mining Engineering

    2000-09-01

    Based on the concept of geological statistic, mathematical program, condition simulation, system engineering, and the features and duties of each main department in surface mine production, an integrated system for surface mine production information was studied systematically and developed by using the technology of data warehousing, CAD, object-oriented and system integration, which leads to the systematizing and automating of the information management, data processing, optimization computing and plotting. In this paper, its overall object, system design, structure and functions and some key techniques were described. 2 refs., 3 figs.

  4. Fuzzy linear model for production optimization of mining systems with multiple entities

    Science.gov (United States)

    Vujic, Slobodan; Benovic, Tomo; Miljanovic, Igor; Hudej, Marjan; Milutinovic, Aleksandar; Pavlovic, Petar

    2011-12-01

    Planning and production optimization within multiple mines or several work sites (entities) mining systems by using fuzzy linear programming (LP) was studied. LP is the most commonly used operations research methods in mining engineering. After the introductory review of properties and limitations of applying LP, short reviews of the general settings of deterministic and fuzzy LP models are presented. With the purpose of comparative analysis, the application of both LP models is presented using the example of the Bauxite Basin Niksic with five mines. After the assessment, LP is an efficient mathematical modeling tool in production planning and solving many other single-criteria optimization problems of mining engineering. After the comparison of advantages and deficiencies of both deterministic and fuzzy LP models, the conclusion presents benefits of the fuzzy LP model but is also stating that seeking the optimal plan of production means to accomplish the overall analysis that will encompass the LP model approaches.

  5. Impact of rent-seeking on productivity in Chinese coal mine safety supervision: A simulation study

    International Nuclear Information System (INIS)

    Chen, Hong; Feng, Qun; Zhu, Dandan; Han, Shuai; Long, Ruyin

    2016-01-01

    During the “golden decade” (2001–2011) of the coal industry in China, rent-seeking increased in coal mine safety supervision alongside significant improvements in coal mine safety status and increased economic benefits in the coal industry. To explore this internal relationship, we developed a Matlab simulation system and simulated the impact of rent-seeking from each level of the supervision department on coal mine productivity in different scenarios. The results showed the following. (1) Rent-seeking had no significant influence on the average level of material productivity but it had an adverse effect on the average level of mental productivity. Due to the effects of rent-seeking, productivity tended to exhibit unstable and destructive fluctuations, and rent-seeking had the dual effect of promoting and restraining productivity in a wide range with a high frequency. (2) In the supervision scenario, supervision by the high-level department was efficient, and productivity was promoted more by the national and provincial supervision department. (3) In the rent-seeking scenario, each level of the department had an intensity threshold above which coal mine accidents occurred. We also propose suggestions that focuses on the improved supervision of Chinese coal mine safety in three areas based on the “new normal” safety concept. - Highlights: •We discussed rent-seeking behavior in Chinese coal mine safety supervision. •We explored the characteristics of coal mine productivity. •We investigated the impact of rent-seeking on coal mine productivity in three scenarios. •We found rent-seeking led to great fluctuations in productivity with a dual effect. •We proposed a model strategy for Chinese coal mine safety supervision in three areas.

  6. Uranium-production forecasting: the simulation of a South African gold mine

    International Nuclear Information System (INIS)

    Boydell, D.W.

    1979-01-01

    A computer program is described that estimates the amount of uranium that will be produced from a mine as a co-product of gold subject to a changing economic environment. The program makes use of two models. The first simulates activities underground, whereas the second simulates the performance of processing plant on the surface. The combination of these models generates a description of the flow of ore from stopes and from development, through hoisting, sorting, and the metallurgical plant to the despatch of saleable product. The total production of uranium to the end of the life of the mine constitutes the uranium reserve. The effects on production forecasts and reserve estimates of future trends in cost and price factors are illustrated by results generated from the application of the program to a typical South African mine producing gold and uranium. The graphs presented show that South Africa's future uranium production from underground sources is critically dependent on the gold price in the years ahead. (author)

  7. Telephone Exchange Maintenance

    CERN Multimedia

    2005-01-01

    Urgent maintenance work on CERN telephone exchanges will be performed on 24 March from 6 a.m. to 8 a.m. Telephone services may be disrupted or even interrupted during this time. For more details, please contact us by email at Standard.Telephone@cern.ch.

  8. Influence of mine waste water purification on radium concentration in desalinisation products

    International Nuclear Information System (INIS)

    Chalupnik, S.

    2005-01-01

    The effects of mine waste water treatment in the desalination process on radium concentration in final products have been shown on the example of installations working in 'Ziemowit' and 'Piast' Polish coal mines. The environmental impact and health hazard resulting deposition of waste water treatment plant by-products have been also discussed

  9. Total Telephone Tips.

    Science.gov (United States)

    Corder, Lloyd E.; And Others

    This manual of telephone behavior tips for business and sales professionals offers ways to handle the disgruntled caller and makes suggestions on topics relevant to the telephone. The manual is divided into the following sections and subsections: (1) Common Courtesy (staff tips, answering the telephone, screening calls, transferring calls, taking…

  10. A new productivity index to measure economic sustainability of the mining industry

    International Nuclear Information System (INIS)

    Rodriguez, Xose A

    2010-01-01

    This document aims to introduce a total productivity index to measure the economic sustainability of the mining industry. This index will take into account any technical developments, means of use of productive factors (i.e. inefficiencies and scale effects) and the effects on the growth of the geological properties in the resources to be exploited (particularly the effects of resource reduction or reserves depletion). This new index will then be applied to the example of the Spanish mining industry, with some interesting findings regarding the configuration of sustainable mining policies.

  11. Productivity Improvement in Underground Coal Mines - A Case Study

    Directory of Open Access Journals (Sweden)

    Devi Prasad Mishra

    2013-01-01

    Full Text Available Improvement of productivity has become an important goal for today's coal industry in the race to increase price competitiveness. The challenge now lying ahead for the coal industry is to identify areas of waste, meet the market price and maintain a healthy profit. The only way to achieve this is to reduce production costs by improving productivity, efficiency and the effectiveness of the equipment. This paper aims to identify the various factors and problems affecting the productivity of underground coal mines adopting the bord and pillar method of mining and to propose suitable measures for improving them. The various key factors affecting productivity, namely the cycle of operations, manpower deployment, machine efficiency, material handling and management of manpower are discussed. In addition, the problem of side discharge loader (SDL cable handling resulting in the wastage of precious manpower resources and SDL breakdown have also been identified and resolved in this paper.

  12. Telephone Service

    CERN Multimedia

    2005-01-01

    As part of the upgrade of telephone services, the CERN exchange switches will be updated on Thursday 2 June between 7.00 p.m. and midnight. Telephone services may be affected and possibly even disrupted during this operation. 

  13. Stochastic production phase design for an open pit mining complex with multiple processing streams

    Science.gov (United States)

    Asad, Mohammad Waqar Ali; Dimitrakopoulos, Roussos; van Eldert, Jeroen

    2014-08-01

    In a mining complex, the mine is a source of supply of valuable material (ore) to a number of processes that convert the raw ore to a saleable product or a metal concentrate for production of the refined metal. In this context, expected variation in metal content throughout the extent of the orebody defines the inherent uncertainty in the supply of ore, which impacts the subsequent ore and metal production targets. Traditional optimization methods for designing production phases and ultimate pit limit of an open pit mine not only ignore the uncertainty in metal content, but, in addition, commonly assume that the mine delivers ore to a single processing facility. A stochastic network flow approach is proposed that jointly integrates uncertainty in supply of ore and multiple ore destinations into the development of production phase design and ultimate pit limit. An application at a copper mine demonstrates the intricacies of the new approach. The case study shows a 14% higher discounted cash flow when compared to the traditional approach.

  14. Telephoning in English

    CERN Document Server

    Naterop, B Jean

    1994-01-01

    Many people have to use English on the telephone in the course of their work, either at the level of taking a simple message or involving more complex tasks such as requesting information. Telephoning in English provides an up-to-date and relevant context in which students from lower-intermediate level upwards can develop practical telephone skills. The course principally develops spoken interactive skills, but also includes reading material on telephone systems and techniques. As the material is not restricted to particular job functions, it is suitable for students in a wide range of business and administration fields.

  15. Recent trends in monitoring radon and daughter products in Indian uranium mines

    International Nuclear Information System (INIS)

    Khan, A.H.; Raghavayya, M.

    1977-01-01

    Uranium mining is of comparatively recent origin in India. In keeping with the ICRP (1959) and IAEA (1967) recommendations on the subject, the radiation practice in this country has been to monitor the mine air for radon. But the fact that radon daughter products are responsible for a major contribution to the radiation dose to the lungs and the comparative ease of correlating incidence of lung cancer with cumulative exposure to radon daughters (WLM), as demonstrated by epidemiologists, cannot be lost sight of. The results of a series of simultaneous measurements of radon, its decay products and their unattached fractions are presented. These measurements of radon have been carried out under different operational and passive conditions in mines. It has been observed that in the mine air, not only RaA but significant fractions of RaB and RaC too, exist in 'free state'. Wide variations have been observed in the unattached fractions with median values around 6% for RaA, 3% for RaB and 1% for RaC. The unattached daughter activities in the return air are maximum under passive conditions and show declining trend as the mining operations assume momentum causing increase in the aerosol concentrations. Relative merits of monitoring the mine air for radon and/or its decay products are also discussed

  16. Mining waste contaminated lands: an uphill battle for improving crop productivity

    Directory of Open Access Journals (Sweden)

    B M Kumar

    2013-10-01

    Full Text Available Mining drastically alters the physico-chemical and biological environment of the landscape. Low organic matter content, unfavourable pH, low water holding capacity, salinity, coarse texture, compaction, siltation of water bodies due to wash off of mineral overburden dumps, inadequate supply of plant nutrients, accelerated erosion, acid generating materials, and mobilization of contaminated sediments into the aquatic environment are the principal constraints experienced in mining contaminated sites. A variety of approaches have been considered for reclaiming mine wastes including direct revegetation of amended waste materials, top soiling, and the use of capillary barriers. The simplest technology to improve crop productivity is the addition of organic amendments. Biosolids and animal manure can support revegetation, but its rapid decomposition especially in the wet tropics, necessitates repeated applications. Recalcitrant materials such as “biochars”, which improve soil properties on a long term basis as well as promote soil carbon sequestration, hold enormous promise. An eco-friendly and cost-effective Microbe Assisted Phytoremediation system has been proposed to increase biological productivity and fertility of mine spoil dumps. Agroforestry practices may enhance the nutrient status of degraded mine spoil lands (facilitation. N-fixing trees are important in this respect. Metal tolerant ecotypes of grasses and calcium-loving plants help restore lead, zinc, and copper mine tailings and gypsum mine spoils, respectively. Overall, an integrated strategy of introduction of metal tolerant plants, genetic engineering for enhanced synthesis and exudation of natural chelators into the rhizosphere, improvement of rhizosphere, and integrated management including agroforestry will be appropriate for reclaiming mining contaminated lands.

  17. Optimization of the productivity in the mine; Optimizacion de la Productividad en Mina

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    The project consisted of putting in place a performance system which helps to optimise or maintain in a consistent manner the productivity of the mine, from storage onwards. The system also enables the analysis of the most significant information arising from the mining operations and other departments involved in the production process. In parallel to this, the project aimed to improve safety in the mine, and lead to an improvement in the working conditions of men and equipment. In order to achieve this, the project centred on: - Developing a relational database that collects discretely, and when operational, automatically, the principal and most significant parameters in the production process. - Monitoring and controlling the various operations in which equipment is involved. - A detailed analysis of the organisation and work methods, utilising continuous improvement techniques, which initially was aimed at the improve of safety, and equipment maintenance. Having completed the project, it can be confirmed that improvements were obtained in all performance areas. In addition, the database and control system controlling the most representative technical, physical and economics barriers of the production system continue to operate, and constitute a very efficient and modern tool in the management of the mining process, which is one of the most competitive within the underground coal mining industry in Spain. (Author)

  18. An imperialist competitive algorithm for solving the production scheduling problem in open pit mine

    Directory of Open Access Journals (Sweden)

    Mojtaba Mokhtarian Asl

    2016-06-01

    Full Text Available Production scheduling (planning of an open-pit mine is the procedure during which the rock blocks are assigned to different production periods in a way that the highest net present value of the project achieved subject to operational constraints. The paper introduces a new and computationally less expensive meta-heuristic technique known as imperialist competitive algorithm (ICA for long-term production planning of open pit mines. The proposed algorithm modifies the original rules of the assimilation process. The ICA performance for different levels of the control factors has been studied and the results are presented. The result showed that ICA could be efficiently applied on mine production planning problem.

  19. Energies and media nr 28. Uranium mining exploitations and residues. Uranium mines in Niger. Depleted uranium as a by-product of enrichment

    International Nuclear Information System (INIS)

    2009-02-01

    After some comments on recent events in the nuclear sector in different countries (USA, China, India, UK, Sweden, Italy and France), this publication addresses the issue of uranium mining exploitations and of their residues. It comments the radioactivity in mining areas, briefly discusses the issue of low doses, describes the uranium ore and its processing, indicates which are the various residues of the mining activity (sterile uncovered tailings, non exploitable mineralized rocks, ore and residue processing, residue radioactivity, mine closing down, witnesses on health in ancient mines). Some reflections are stated about uranium mines in Niger, and about depleted uranium as a by-product of the enrichment activity

  20. Mining, ore preparation and niobium alloys production at Araxa, Brazil

    International Nuclear Information System (INIS)

    Paraiso, O.S.; Fuccio Junior, R. de; Betz, E.W.

    1984-01-01

    A detailed description of the worlds major niobium producer is presented covering mining, concentration by froth flotation, leaching, and production of ferro-alloys. The present exploration of the Araxa deposit, its ore preparation and production of ferro-niobium is described. (E.G.) [pt

  1. Acid drainage from coal mining: Effect on paddy soil and productivity of rice.

    Science.gov (United States)

    Choudhury, Burhan U; Malang, Akbar; Webster, Richard; Mohapatra, Kamal P; Verma, Bibhash C; Kumar, Manoj; Das, Anup; Islam, Mokidul; Hazarika, Samarendra

    2017-04-01

    Overburden and acid drainage from coal mining is transforming productive agricultural lands to unproductive wasteland in some parts of Northeast India. We have investigated the adverse effects of acid mine drainage on the soil of rice paddy and productivity by comparing them with non-mined land and abandoned paddy fields of Jaintia Hills in Northeast India. Pot experiments with a local rice cultivar (Myngoi) as test crop evaluated biological productivity of the contaminated soil. Contamination from overburden and acid mine drainage acidified the soil by 0.5 pH units, increased the exchangeable Al 3+ content 2-fold and its saturation on clay complexes by 53%. Available sulfur and extractable heavy metals, namely Fe, Mn and Cu increased several-fold in excess of critical limits, while the availability of phosphorus, potassium and zinc contents diminished by 32-62%. The grain yield of rice was 62% less from fields contaminated with acid mine drainage than from fields that have not suffered. Similarly, the amounts of vegetation, i.e. shoots and roots, in pots filled with soil from fields that received acid mine drainage were 59-68% less than from uncontaminated land (average shoot weight: 7.9±2.12gpot -1 ; average root weight: 3.40±1.15gpot -1 ). Paddy fields recovered some of their productivity 4years after mining ceased. Step-wise multiple regression analysis affirmed that shoot weight in the pots and grain yield in field were significantly (p<0.01) and positively influenced by the soil's pH and its contents of K, N and Zn, while concentration of S in excess of threshold limits in contaminated soil significantly (p<0.01) reduced the weight of shoots in the pots and grain yield in the field. Copyright © 2017 Elsevier B.V. All rights reserved.

  2. Mining, ore preparation and ferroniobium production at CBMM

    International Nuclear Information System (INIS)

    deSouza Paraiso, O.; deFuccio, R.

    1984-01-01

    The paper presents a chronology of the history and development of the Araxa carbonatite complex with respect to the production of niobium products. Mining and geology are described, including the background on methods used for defining reserves. The ore treatment technology and material flow patterns are described in detail, together with descriptions on impurity removal by calcination and leaching. Ferroniobium is produced aluminothermically in simple, yet massive, reactors and details of the process are given

  3. Improving coal mining production performance through the application of total production management

    Energy Technology Data Exchange (ETDEWEB)

    Emery, J.C. [Devman Consulting Pty Ltd. (Australia)

    1998-12-31

    This paper describes the application of the Total Productive Management (TPM) technique as a performance improvement initiative for a coal mining operation. It discusses the objectives of TPM, with the driver for improved production performance being the Overall Equipment Effectiveness (OEE) of the equipment or process, and with the development of ownership as the behavioral approach to equipment management and continuous improvement through cross-functional and area-based teams. It illustrates the concept of equipment management as defects management. The scope for application of TPM to the coal mining industry is immense. The harshness of the operating environment can be a major generator of equipment defects, and a current paradigm in the industry accepts these defects as an unavoidable outcome defining maintenance costs in this environment. However recent benchmarking studies have highlighted that maintenance costs per operating hour in some mining operations are more than double the vendor`s estimate of best practice. The paper refers to these studies which also compare maintenance costs of fixed and mobile plant and equipment to best practice outcomes in comparable process industries. The ultimate goal of any operating strategy must be to translate results to the bottom line through adding revenue from increased volume and quality of operations output, better safety performance, and reducing costs of production through lower operating and maintenance costs. These lower costs result from removal of defects generators, improved maintenance planning, and identification and reduction of hidden operating costs resulting from poor equipment maintenance. Finally the paper outlines the minesite procedures required for successful implementation of TPM to sustain these desired results for all stakeholders. 3 refs., 6 figs.

  4. Contract Mining versus Owner Mining

    African Journals Online (AJOL)

    Owner

    mining companies can concentrate on their core businesses while using specialists for ... 2 Definition of Contract and Owner. Mining ... equipment maintenance, scheduling and budgeting ..... No. Region. Amount Spent on. Contract Mining. ($ billion). Percent of. Total. 1 ... cost and productivity data based on a large range.

  5. Role of telephone triage in obstetrics.

    Science.gov (United States)

    Manning, Nirvana Afsordeh; Magann, Everett F; Rhoads, Sarah J; Ivey, Tesa L; Williams, Donna J

    2012-12-01

    The telephone has become an indispensable method of communication in the practice of obstetrics. The telephone is one of the primary methods by which the patient makes her appointments and contacts her health care provider for advice, reassurance, and referrals. Current methods of telephone triage include personal at the physicians' office, telephone answering services, labor and delivery nurses, and a dedicated telephone triage system using algorithms. Limitations of telephone triage include the inability of the provider to see the patient and receive visual clues from the interaction and the challenges of obtaining a complete history over the telephone. In addition, there are potential safety and legal issues with telephone triage. To date, there is insufficient evidence to either validate or refute the use of a dedicated telephone triage system compared with a traditional system using an answering service or nurses on labor and delivery. Obstetricians and gynecologists, family physicians. After completing this CME activity, physicians should be better able to analyze the scope of variation in telephone triage across health care providers and categorize the components that go into a successful triage system, assess the current scope of research in telephone triage in obstetrics, evaluate potential safety and legal issues with telephone triage in obstetrics, and identify issues that should be addressed in any institution that is using or implementing a system of telephone triage in obstetrics.

  6. Environmental and ventilation benefits for underground mining operations using fuel cell powered production equipment

    International Nuclear Information System (INIS)

    Kocsis, C.; Hardcastle, S.

    2007-01-01

    The benefits of replacing diesel engines with fuel cells in mine production equipment were discussed. The paper was part of a multi-year feasibility study conducted to evaluate the use of hydrogen fuel cell-powered equipment to replace diesel engine powered equipment in underground mining operations. The feasibility study demonstrated that fuel cells are capable of eliminating the unwanted by-products of combustion engines. However, the use of fuel cells also reduced the amount of ventilation that mines needed to supply, thereby further reducing energy consumption. This study examined the benefits of replacing diesel engines with fuel cells, and discussed the mitigating qualifiers that may limit ventilation energy savings. Solutions to retaining and maintaining additional ventilation in the event of hydrogen leaks from fuel cell stacks were also investigated. The analyses were conducted on 6 operating mines. Current operating costs were compared with future operating conditions using fuel cell powered production vehicles. Operating costs of the primary ventilation system were established with a mine ventilation simulator. The analysis considered exhaust shaft velocities, heating system air velocities, and levels of silica exposure. Canadian mine design criteria were reviewed. It was concluded that appropriate safeguards are needed along hydrogen distribution lines to lower the impacts of hydrogen leaks. Large financial commitments may also be required to ensure a spark-free environment. 20 refs., 6 tabs., 3 figs

  7. Sustainable Mining Environment: Technical Review of Post-mining Plans

    Directory of Open Access Journals (Sweden)

    Restu Juniah

    2017-12-01

    Full Text Available The mining industry exists because humans need mining commodities to meet their daily needs such as motor vehicles, mobile phones, electronic equipment and others. Mining commodities as mentioned in Government Regulation No. 23 of 2010 on Implementation of Mineral and Coal Mining Business Activities are radioactive minerals, metal minerals, nonmetallic minerals, rocks and coal. Mineral and coal mining is conducted to obtain the mining commodities through production operations. Mining and coal mining companies have an obligation to ensure that the mining environment in particular after the post production operation or post mining continues. The survey research aims to examine technically the post-mining plan in coal mining of PT Samantaka Batubara in Indragiri Hulu Regency of Riau Province towards the sustainability of the mining environment. The results indicate that the post-mining plan of PT Samantaka Batubara has met the technical aspects required in post mining planning for a sustainable mining environment. Postponement of post-mining land of PT Samantaka Batubara for garden and forest zone. The results of this study are expected to be useful and can be used by stakeholders, academics, researchers, practitioners and associations of mining, and the environment.

  8. Psychotherapeutic intervention by telephone

    Directory of Open Access Journals (Sweden)

    Erika Mozer

    2008-06-01

    Full Text Available Erika Mozer1,2, Bethany Franklin1,3, Jon Rose11Department of Veterans Affairs, Palo Alto Health Care System, Palo Alto, CA, USA; 2PGSP Stanford PsyD Consortium Palo Alto, CA, USA; 3Pacific Graduate School of Psychology Palo Alto, California, USAAbstract: Psychotherapy conducted over the telephone has received increasing amounts of empirical attention given practical advantages that side-step treatment barriers encountered in traditional office-based care. The utility and efficacy of telephone therapy appears generalizable across diverse clinical populations seeking care in community-based hospital settings. Treatment barriers common to older adults suggest that telephone therapy may be an efficient and effective mental health resource for this population. This paper describes empirical studies of telehealth interventions and case examples with psychotherapy conducted via telephone on the Spinal Cord Injury Unit of the Palo Alto Veterans’ Administration. Telephone therapy as appears to be a viable intervention with the aging population.Keywords: telehealth, rural mental health, psychotherapy, healthcare delivery, telecare

  9. Mining-metallurgical projects for the production of uranium concentrates

    International Nuclear Information System (INIS)

    Ajuria-Garza, S.

    1983-01-01

    This report presents an overall view of a complete project for a mining-metallurgical complex for the production of uranium concentrates. Relevant aspects of each important topic are discussed as parts of an integrated methodology. The principal project activities are analyzed and the relationships among the various factors affecting the design are indicated. A list of 96 principal activities is proposed as an example. These activities are distributed in eight groups: initial evaluations preliminary feasibility studies, project engineering, construction, industrial operation, decommissioning and post-decommissioning activities. The environmental impact and the radiological risks due to the construction and operation of the mining metallurgical complex are analyzed. The principles of radiological protection and the regulations, standards and recommendations for radiological protection in uranium mines and mills are discussed. This report is also a guide to the specialized literature: a bibliography with 765 references is included. (author)

  10. 75 FR 28227 - National Emission Standards for Hazardous Air Pollutants: Gold Mine Ore Processing and Production...

    Science.gov (United States)

    2010-05-20

    ...-AP48 National Emission Standards for Hazardous Air Pollutants: Gold Mine Ore Processing and Production... published a proposed rule for mercury emissions from the gold mine ore processing and production area source... Environmental protection, Air pollution control, Hazardous substances, Incorporations by reference, Reporting...

  11. Methyl Mercury Production In Tropical Hydromorphic Soils: Impact Of Gold Mining.

    Science.gov (United States)

    Guedron, S.; Charlet, L.; Harris, J.; Grimaldi, M.; Cossa, D.

    2007-12-01

    Artisanal alluvial gold mining is important in many tropical developing countries and several million people are involved worldwide. The dominant use of mercury for gold amalgamation in this activity leads to mercury accumulation in soils, to sediment contamination and to methyl mercury (MMHg) bioaccumulation along the food chain. In this presentation we will present recent data on methyl mercury production in hydromorphic soils and tailing ponds from a former gold mining area located in French Guiana (South America). Comparison of specific fluxes between a pristine sub watershed and the contaminated watershed shows that former mining activities lead to a large enhancement of dissolved and particulate MMHg emissions at least by a factor of 4 and 6, respectively. MMHg production was identified in sediments from tailing ponds and in surrounding hydromorphic soils. Moreover, interstitial soil water and tailing pond water profiles sampled in an experimental tailing pond demonstrate the presence of a large MMHg production in the suboxic areas. Both tailing ponds and hydromorphic soils present geochemical conditions that are favorable to bacterial mercury methylation (high soil Hg content, high aqueous ferric iron and dissolved organic carbon concentrations). Although sulfate-reducing bacteria have been described as being the principal mercury methylating bacteria, the positive correlation between dissolved MMHg and ferrous iron concentrations argue for a significant role of iron-reducing bacteria. Identifications by sequencing fragments of 16S rRNA from total soil DNA support these interpretations. This study demonstrates that current and past artisanal gold mining in the tropics lead to methyl mercury production in contaminated areas. As artisanal activities are increasing with increasing gold prices, the bio- magnification of methyl mercury in fish presents an increasing threat to local populations whose diet relies on fish consumption.

  12. An IPSO-SVM algorithm for security state prediction of mine production logistics system

    Science.gov (United States)

    Zhang, Yanliang; Lei, Junhui; Ma, Qiuli; Chen, Xin; Bi, Runfang

    2017-06-01

    A theoretical basis for the regulation of corporate security warning and resources was provided in order to reveal the laws behind the security state in mine production logistics. Considering complex mine production logistics system and the variable is difficult to acquire, a superior security status predicting model of mine production logistics system based on the improved particle swarm optimization and support vector machine (IPSO-SVM) is proposed in this paper. Firstly, through the linear adjustments of inertia weight and learning weights, the convergence speed and search accuracy are enhanced with the aim to deal with situations associated with the changeable complexity and the data acquisition difficulty. The improved particle swarm optimization (IPSO) is then introduced to resolve the problem of parameter settings in traditional support vector machines (SVM). At the same time, security status index system is built to determine the classification standards of safety status. The feasibility and effectiveness of this method is finally verified using the experimental results.

  13. Microbial genome mining for accelerated natural products discovery: is a renaissance in the making?

    Science.gov (United States)

    Bachmann, Brian O; Van Lanen, Steven G; Baltz, Richard H

    2014-02-01

    Microbial genome mining is a rapidly developing approach to discover new and novel secondary metabolites for drug discovery. Many advances have been made in the past decade to facilitate genome mining, and these are reviewed in this Special Issue of the Journal of Industrial Microbiology and Biotechnology. In this Introductory Review, we discuss the concept of genome mining and why it is important for the revitalization of natural product discovery; what microbes show the most promise for focused genome mining; how microbial genomes can be mined; how genome mining can be leveraged with other technologies; how progress on genome mining can be accelerated; and who should fund future progress in this promising field. We direct interested readers to more focused reviews on the individual topics in this Special Issue for more detailed summaries on the current state-of-the-art.

  14. Towards total productive maintenance in the Eastern European mining industry

    Energy Technology Data Exchange (ETDEWEB)

    Buck, J.D. [Kepner-Tregoe (United Kingdom) Ltd., Windsor

    1999-08-01

    An European Union consultancy project was undertaken to install a `best-in-class` maintenance system for the lignite mines of Romania. The project, funded by PHARE, started with a critical analysis of the maintenance and repair systems of equipment in both the open-pit and underground mines operated by RALO (Regia Autonoma a Lignitului Octenia). This study paved the way for the introduction of a computerised maintenance system and the inception of a planned preventative maintenance scheme. A development strategy leading by a structural methodology towards predictive maintenance and total productive maintenance was drawn up and attention was given to multi-skilling, training and further facilitating activities to enable the success of the total productive maintenance strategy. An abridged version of the paper was presented at MAINTE 97, held in Birmingham, UK in 1997. 5 refs., 5 figs., 1 tab.

  15. Emotion Analysis of Telephone Complaints from Customer Based on Affective Computing

    OpenAIRE

    Gong, Shuangping; Dai, Yonghui; Ji, Jun; Wang, Jinzhao; Sun, Hai

    2015-01-01

    Customer complaint has been the important feedback for modern enterprises to improve their product and service quality as well as the customer's loyalty. As one of the commonly used manners in customer complaint, telephone communication carries rich emotional information of speeches, which provides valuable resources for perceiving the customer's satisfaction and studying the complaint handling skills. This paper studies the characteristics of telephone complaint speeches and proposes an anal...

  16. Productive Habitus and Mining: the Case of Marmato, Caldas

    Directory of Open Access Journals (Sweden)

    Mary Luz Sandoval Robayo

    2012-08-01

    Full Text Available Mining activity shares the characteristics of a field, in the sense attributed to the concept by French sociologist Pierre Bourdieu. This can be observed through a case study in Marmato, in the department of Caldas. 470 years of gold-vein mining have formed a culture tied to beliefs and traditions that influence the degree of rationality in work relationships, work itself, and economic behaviour in general. It is possible that these habita are being broken by the presence of a global agent that has now entered the dispute for gold: multinational companies. This paper uses the concepts of field and habitus to study the dispute between ancestral and industrialised forms of production, and their strategies.

  17. Telephone calls by individuals with cancer.

    Science.gov (United States)

    Flannery, Marie; McAndrews, Leanne; Stein, Karen F

    2013-09-01

    To describe symptom type and reporting patterns found in spontaneously initiated telephone calls placed to an ambulatory cancer center practice. Retrospective, descriptive. Adult hematology oncology cancer center. 563 individuals with a wide range of oncology diagnoses who initiated 1,229 telephone calls to report symptoms. Raw data were extracted from telephone forms using a data collection sheet with 23 variables obtained for each phone call, using pre-established coding criteria. A literature-based, investigator-developed instrument was used for the coding criteria and selection of which variables to extract. Symptom reporting, telephone calls, pain, and symptoms. A total of 2,378 symptoms were reported by telephone during the four months. At least 10% of the sample reported pain (38%), fatigue (16%), nausea (16%), swelling (12%), diarrhea (12%), dyspnea (10%), and anorexia (10%). The modal response was to call only one time and to report only one symptom (55%). Pain emerged as the symptom that most often prompted an individual to pick up the telephone and call. Although variation was seen in symptom reporting, an interesting pattern emerged with an individual reporting on a solitary symptom in a single telephone call. The emergence of pain as the primary symptom reported by telephone prompted educational efforts for both in-person clinic visit management of pain and prioritizing nursing education and protocol management of pain reported by telephone. Report of symptoms by telephone can provide nurses unique insight into patient-centered needs. Although pain has been an important focus of education and research for decades, it remains a priority for individuals with cancer. A wide range in symptom reporting by telephone was evident.

  18. An Evaluation of Practical Applicability of Multi-Assortment Production Break-Even Analysis based on Mining Companies

    Science.gov (United States)

    Fuksa, Dariusz; Trzaskuś-Żak, Beata; Gałaś, Zdzisław; Utrata, Arkadiusz

    2017-03-01

    In the practice of mining companies, the vast majority of them produce more than one product. The analysis of the break-even, which is referred to as CVP (Cost-Volume-Profit) analysis (Wilkinson, 2005; Czopek, 2003) in their case is significantly constricted, given the necessity to include multi-assortment structure in the analysis, which may have more than 20 types of assortments (depending on the grain size) in their offer, as in the case of open-pit mines. The article presents methods of evaluation of break-even (volume and value) for both a single-assortment production and a multi-assortment production. The complexity of problem of break-even evaluation for multi-assortment production has resulted in formation of many methods, and, simultaneously, various approaches to its analysis, especially differences in accounting fixed costs, which may be either totally accounted for among particular assortments, relating to the whole company or partially accounted for among particular assortments and partially relating to the company, as a whole. The evaluation of the chosen methods of break-even analysis, given the availability of data, was based on two examples of mining companies: an open-pit mine of rock materials and an underground hard coal mine. The selection of methods was set by the available data provided by the companies. The data for the analysis comes from internal documentation of the mines - financial statements, breakdowns and cost calculations.

  19. Study on remote control technology of airflow during a mine fire

    Energy Technology Data Exchange (ETDEWEB)

    Wang, D.; Wang, Y; Zhou, Y.; Zhou, F. [China University of Mining and Technology, Jiangsu (China). College of Mineral and Energy Resource

    2001-07-01

    In order to realize remote control of airflow during a mine fire and minimize fire losses, two kinds of the airflow remote control systems have been developed. One uses compressed air as power source, and transmits control signals by a monitor system for mine environment. Another uses electric power and transmits control signals through a telephone network underground. The mine door controllers of the remote airflow controlling systems are developed with a single-chip microcomputer. Then the controller can not only do logical analysis and judgement, but also has a strong anti-disturb ability and sufficient reliability. The two kinds of airflow remote control system have been successfully applied in some coal mines in China. Their effects of running are very good. 2 refs., 5 figs.

  20. Production scheduling of a lignite mine under quality and reserves uncertainty

    International Nuclear Information System (INIS)

    Galetakis, Michael; Roumpos, Christos; Alevizos, George; Vamvuka, Despina

    2011-01-01

    The effect of uncertainty sources to the stochastic optimization of the combined project of a new surface lignite mine exploitation and power plant operation for electricity generation is investigated. Major sources of uncertainty that were considered are the reserves and the quality of the lignite. Since probability distribution functions for these uncertainties were estimated during the detailed exploration phase of the deposit, the overall goal is then to determine the optimal capacity of the power plant and consequently the optimal production rate of the mine over the time. The optimization objective that was selected is the maximization of the net present value of the project. Emphasis is placed on the sensitivity analysis for the investigation of the effect of quality and reserves uncertainty on project optimization, on the mathematical formulation of risk attitude strategy and on increasing the efficiency of the optimization process by creating a limited set of feasible solutions applying empirical rules. The developed methodology was applied for the determination of the optimal annual production rate of a new surface lignite mine in the area of Ptolemais–Amynteon in Northern Greece. - Highlights: ► Quality and reserves uncertainty affects considerably the production scheduling. ► Stochastic optimization is greatly accelerated by incorporating Taylor's rule. ► Decisions can be made considering different risk level attitudes.

  1. Sustainable development of lignite production on open cast mines in Serbia

    Energy Technology Data Exchange (ETDEWEB)

    Darko Danicic; Slobodan Mitrovic; Vladimir Pavlovic; Sava Kovacev [Kolubara Metal, Vreoci (Serbia)

    2009-09-15

    Currently operated coalmines in Serbia (Kolubara and Kostolac) have production around 36 million tons of lignite, and over 108 million m{sup 3} of overburden. Consequently, sustainability of lignite production requires cost reduction and environmental protection, as well as capacity increase. In order to rationalise, and increase efficiency of Serbian lignite mines, it is necessary to focus the activities on major issues shown within the triangle of energy policy objectives (security of supply, competitive prices and environmental protection). Production process optimisation singled out several special programs. Equipment revitalization and modernization is necessary taking into account that majority of the currently operated machinery has a life up to 25 years. Production process automation would enable high level of technical operation in the field of open cast mines management. Lack of coal quality uniformity is the permanent problem resulting by great amounts of coal reserves to be used uneconomically. Planning and training at all levels and finally cooperative software for business procedures and work order management. The measures suggested are a key precondition for maintaining competitive position of lignite production on international level. 7 refs., 5 figs., 1 tab.

  2. Update of telephone exchange

    CERN Multimedia

    2006-01-01

    As part of the upgrade of telephone services, the CERN switching centre will be updated on Wednesday 14 June between 8.00 p.m. and midnight. Telephone services may be disrupted and possibly even interrupted during this operation. We apologise in advance for any inconvenience this may cause. CERN TELECOM Service

  3. Mining by-products show potential

    International Nuclear Information System (INIS)

    Douglas, Grant

    2013-01-01

    Full text: Many mining and industrial processes generate wastewater that contains a variety of contaminants, such as metals and metalloids. These must be removed to ensure the wastewater is suitable for reuse or safe discharge to the environment. However, mining wastewater treatment processes have traditionally been difficult due to the large range of different contaminants present, requiring a number of complex steps. In current processes, the mining industry generally adds lime to the wastewater to purify it. While often effective, the key issue with this method has been the volume of sludge that forms and the subsequent problems with dealing with this sludge - either to extract the contained water, which often requires additional treatment, or to find enough space for long-term disposal. This complex practice could end soon thanks to a new treatment solution that utilises hydrotalcites. Developed by CSIRO, the treatment overcomes the complexities of lime-based methods and offers a simpler and more water smart process. The CSIRO team found that hydrotalcites, which are layered minerals consisting of aluminium- and magnesium- rich layers, can simultaneously remove a variety of contaminants in wastewater in a single step. Scientists noticed that hydrotalcites begin to form when aluminium and magnesium are present at an ideal ratio and under conditions during neutralisation of acidic waters. As hydrotalcites form, the contaminants become trapped and are easily removed from the wastewater as a solid. Mining wastewater often contains substantial magnesium and aluminium concentrations. This means that we can create hydrotalcites utilising common contaminants that are already present in the wastewater, by simply adjusting their concentrations and adding alkaline compounds to rapidly increase pH. Initial applications have focussed on treating wastewater generated from the mining and extraction of uranium. A range of contaminants including uranium, rare earth elements

  4. Mine water treatment with yellowcake by-production

    International Nuclear Information System (INIS)

    Csicsak, J.; Csoevari, M.; Eberfalvy, J.; Lendvai, Zs.

    2002-01-01

    Mining and milling of uranium ore in Hungary was terminated at the end of 1997. From that time rehabilitation works have been carrying out, which include manly the relocation of different solid wastes, such as waste rocks, heap leached residues, demolishing of former industrial buildings, clean up contaminated sites. Overall rehabilitation of the tailings ponds has also started. At first step the ground water restoration system is under construction, aiming at protecting the drinking water aquifer situated in the immediate vicinity of the tailings ponds. Former mining activity has been carried out also in the vicinity of the drinking water catchment area, for protection of that is compulsory to maintain appropriate depression in the mine in question. This means that mine water has to be pumped out continuously and because of the elevated uranium concentration in mine water, the water has to be treated. Thus the water quality protection is connected with uranium removal from the mine water. Mine water treatment process developed is based on anion-exchange process and removal of the uranium from the eluates with hydrogen peroxide. (author)

  5. The Production Measurement Model of Open Pit Mine Based on Truck Operation Diagram

    Directory of Open Access Journals (Sweden)

    Sun Xiao-Yu

    2016-01-01

    Full Text Available Conventional production measurement of truck dispatching system in open pit mine has not been effectively expressed by a mathematical model, which brings a negative effect on the subsequent data mining and a compatibility issue to apply the production measurement with fixed assignment of truck. In this study, based on the proposed concept that truck is not only the carrier of transport material, but also act as the bridges and linkages between the loading sites and the unloading sites, a new truck operation diagram was established, which was further developed to a basic data matrix and a production measurement model. The new model allowed to calculatethe production measurement of the transport, loading, unloading, material and etc, respectively, as well as with any calculation in combination of more than one factor as needed.It solved the compatibility issue between conventional production measurement and the production measurement of fixed assignment of truck with good practical results.

  6. Barrier pillar between production panels in coal mine

    Energy Technology Data Exchange (ETDEWEB)

    Zingano, Andre Cezar; Koppe, Jair Carlos; Costa, Joao Felipe C.L. [Universidade Federal do Rio Grande do Sul, Porto Alegre (Brazil)

    2007-07-01

    The function of the barrier pillar is to protect the mining panel in activity from the abutment load of adjacent mining panels that were mined. In the case of underground mines in Santa Catarina State, the barrier pillar has functioned to protect the main entries of the mine against pillar failure from old mining panels. The objective of this paper is to verify the application of the empirical method to design barrier pillars as proposed by Peng (1986), using numerical simulation following the mining geometry of the coal mines in Santa Catarina State. Two-dimensional numerical models were built taking into account the geometry of the main entries and mining panels for different overburden thickness, and considering the geomechanical properties for the rock mass that forms the roof-pillar-floor system for the Bonito coal vein. The results of the simulations showed that the empirical method to determine the barrier pillar width is valid for the studied coal vein and considered mine geometry. Neither did the pillar at the main entry become overstressed due to adjacent mine panels, nor did the roof present any failure due to stress redistribution. 9 refs., 6 figs., 5 tabs.

  7. Determination of optimum production capacity and mine life considering net present value in open pit mining at different overall slope angles

    OpenAIRE

    Tahir Malli; Cagatay Pamukcu; Halil Köse

    2015-01-01

    In modern mining industry, with increasing competitive environment and unit costs, it is necessary to evaluate mineral resources optimally from the aspects of economy, safety and environment. On the other hand, production increase is another reality and obligation for today’s mining operations. The activities related to the extraction of ore deposit consist of risky operations, which are a great hazard for capital investments that will take many years. Therefore, in terms of feasibil...

  8. Update of telephone exchange

    CERN Multimedia

    2006-01-01

    As part of the upgrade of telephone services, the CERN switching centre will be updated on Monday 3 July between 8.00 p.m. and 3.00 a.m. Telephone services may be disrupted and possibly even interrupted during this operation.We apologise in advance for any inconvenience this may cause. CERN TELECOM Service

  9. Update of telephone exchange

    CERN Multimedia

    2006-01-01

    As part of the upgrade of telephone services, the CERN switching centre will be updated on Monday 3 July between 8.00 p.m. and 3.00 a.m. Telephone services may be disrupted and possibly even interrupted during this operation. We apologise in advance for any inconvenience this may cause. CERN TELECOM Service

  10. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    2007-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and midnight on 20 November. Fixed-line telephone and audioconference services may be disrupted while the work is being carried out. However, the CCC and the fire brigade will be contactable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. For further details about the maintenance work, please contact the telephone switchboard on 76111 or by email to standard.telephone@cern.ch. Telecom Section IT/CS

  11. Analysis of gob gas venthole production performances for strata gas control in longwall mining.

    Science.gov (United States)

    Karacan, C Özgen

    2015-10-01

    Longwall mining of coal seams affects a large area of overburden by deforming it and creating stress-relief fractures, as well as bedding plane separations, as the mining face progresses. Stress-relief fractures and bedding plane separations are recognized as major pathways for gas migration from gas-bearing strata into sealed and active areas of the mines. In order for strata gas not to enter and inundate the ventilation system of a mine, gob gas ventholes (GGVs) can be used as a methane control measure. The aim of this paper is to analyze production performances of GGVs drilled over a longwall panel. These boreholes were drilled to control methane emissions from the Pratt group of coals due to stress-relief fracturing and bedding plane separations into a longwall mine operating in the Mary Lee/Blue Creek coal seam of the Upper Pottsville Formation in the Black Warrior Basin, Alabama. During the course of the study, Pratt coal's reservoir properties were integrated with production data of the GGVs. These data were analyzed by using material balance techniques to estimate radius of influence of GGVs, gas-in-place and coal pressures, as well as their variations during mining. The results show that the GGVs drilled to extract gas from the stress-relief zone of the Pratt coal interval is highly effective in removing gas from the Upper Pottsville Formation. The radii of influence of the GGVs were in the order of 330-380 m, exceeding the widths of the panels, due to bedding plane separations and stress relieved by fracturing. Material balance analyses indicated that the initial pressure of the Pratt coals, which was around 648 KPa when longwall mining started, decreased to approximately 150 KPa as the result of strata fracturing and production of released gas. Approximately 70% of the initial gas-in-place within the area of influence of the GGVs was captured during a period of one year.

  12. Management of dry flue gas desulfurization by-products in underground mines

    Energy Technology Data Exchange (ETDEWEB)

    Sevim, H.

    1997-06-01

    Disposal of coal combustion by-products (CCBs) in an environmentally sound manner is a major issue facing the coal and utility industries in the US today. Disposal into abandoned sections of underground coal mines may overcome many of the surface disposal problems along with added benefits such as mitigation of subsidence and acid mine drainage. However, many of the abandoned underground coal mines are located far from power plants, requiring long distance hauling of by-products which will significantly contribute to the cost of disposal. For underground disposal to be economically competitive, the transportation and handling cost must be minimized. This requires careful selection of the system and optimal design for efficient operation. The materials handling and system economics research addresses these issues. Transportation and handling technologies for CCBs were investigated from technical, environmental and economic points of view. Five technologies were found promising: (1) Pneumatic Trucks, (2) Pressure Differential Rail Cars, (3) Collapsible Intermodal Containers, (4) Cylindrical Intermodal Tanks, and (5) Coal Hopper Cars with Automatic Retractable Tarping. The first two technologies are currently being utilized in transporting by-products from power plants to disposal sites, whereas the next three are either in development or in conceptualization phases. In this research project, engineering design and cost models were developed for the first four technologies. The engineering design models are in the form of spreadsheets and serve the purpose of determining efficient operating schedules and sizing of system components.

  13. U3O8 production cost analysis study. Sandstone deposit mine model EA-730, Volume 1

    International Nuclear Information System (INIS)

    1978-08-01

    Objective was the development and testing of a model for estimating the production cost of conventional uranium mining. The model used evolved from a base case underground mine of 1000 tons per day output at a nominal depth of 900 feet, and from base-case open pit mines of 2000 tons per day output at 30-, 120-, and 240-foot depths. In addition, an alternate production method employing heap leaching was partially investigated, to be merged with similar work performed by another contractor. The model was internally structured into component submodels capable of reflecting the contributory factors which aggregate into the computed production cost. A financial submodel based on last-quarter 1976 prices used conventional accounting practices to generate a cash flow and profit-and-loss record over the mine life. From this a selling price was obtained based on a desired discounted cash flow return on equity. This submodel is also capable of accepting input inflation rates so that costs in current dollars for future years can be estimated. A Monte Carlo method of the analysis of variance was applied to 50 model runs to obtain a statistical estimate for the expected variance in production cost

  14. Production and planning organization at coal mines. Organizatsiya proizvodstva i planirovanie na ugol'nykh shakhtakh

    Energy Technology Data Exchange (ETDEWEB)

    Rybnikov, S E; Voloshin, A P

    1981-01-01

    A discussion is made of problems concerning the organization of production, labor, and planning at enterprises of the coal industry. Theoretical and methodological principles are given for production organization, standardization and renumeration of wages, production planning and the use of available capacity. Computations are given for optimal numbers of workers, the essential growth in productivity, material expenditures for coal recovery, lowering production costs, and increasing the profitability of enterprise operations. Particular attention is given to the operation of mines of production and associations, organizational and practical problems concerned with the technical retooling of coal mines, and improving management and planning. The teaching aid is intended for students at coal technical institutes specializing in planning at enterprises of the coal industry. 14 references, 26 figures, 14 tables.

  15. Production from new uranium mines a Cogema resources Saskatchewan perspective

    International Nuclear Information System (INIS)

    Pollock, B.

    2001-01-01

    The province of Saskatchewan is best known for the large flat tracts of land in the south that are primarily used for agricultural purposes. Less well known is the fact that the northern part of the province hosts the richest uranium mines in the world. In fact, to use a petroleum analogy, Saskatchewan has been referred to as the 'Saudi Arabia' of the uranium producing countries. The mining industry in Saskatchewan is a flourishing, high technology industry and supplies approximately one-third of the annual world primary production of uranium. The purpose of this paper is to examine the uranium mining industry in Saskatchewan and why this province stands alone as the dominant uranium producer in the world and will maintain that position into the foreseeable future. As well, an overview of the significant role played by COGEMA Resources in developing the Saskatchewan uranium industry will be undertaken. This company whose roots date back almost 40 years in the province, now holds significant interests in all four of the mines currently producing uranium. With investments of over one billion dollars (U.S.) in this province, COGEMA has established itself as a long-term player in the Saskatchewan Uranium Industry. (author)

  16. Update of telephone exchange

    CERN Multimedia

    2006-01-01

    As part of the upgrade of telephone services, the CERN switching centre will be updated on between Monday 23 October 8.00 p.m. and Tuesday 24 October 2.00 a.m. Telephone services may be disrupted and possibly even interrupted during this operation. We apologise in advance for any inconvenience this may cause. CERN TELECOM Service

  17. Upgrade of telephone exchange

    CERN Multimedia

    2006-01-01

    As part of the upgrade of telephone services, work will be carried out on the CERN switching centre between Monday 23 October 8.00 p.m. and Tuesday 24 October 2.00 a.m. Telephone services may be disrupted and possibly even interrupted during this operation. We apologise in advance for any inconvenience this may cause. CERN TELECOM Service

  18. PREVENTION OF ACID MINE DRAINAGE GENERATION FROM OPEN-PIT MINE HIGHWALLS

    Science.gov (United States)

    Exposed, open pit mine highwalls contribute significantly to the production of acid mine drainage (AMD) thus causing environmental concerns upon closure of an operating mine. Available information on the generation of AMD from open-pit mine highwalls is very limit...

  19. Proceedings of the 18. international symposium on mine planning and equipment selection (MPES 2009) and the 11. international symposium on environmental issues and waste management in energy and mineral production (SWEMP 2009) : mine planning and equipment selection and environmental issues and waste management in energy and mineral production

    International Nuclear Information System (INIS)

    Singhal, R.K.; Mehrotra, A.; Fytas, K.; Ge, H.

    2009-01-01

    This conference focused on the application of innovative technologies to the mineral industries and the development of productive methods for the mining and processing industries. It was attended by participants from North and South America, Europe, Australia, Africa and Asia with backgrounds in computer sciences, mining engineering and research in mineral production. The major topics addressed regarding mine planning and equipment selection included economic and technical feasibility studies; reserve estimation; mine development; design and planning of surface and underground mines; drilling, blasting, tunneling and excavation engineering; mining equipment selection; automation and information technology; maintenance and production management for mines and mining systems; mining in terms of health, safety and the environment; and rock mechanics and geotechnical applications. The topics addressed regarding waste management in energy and mineral production included the environmental impacts of coal-fired power projects; mining and reclamation; water management; social aspects of rehabilitation; sustainable development for mineral and energy industries; remediation of contaminated soil and groundwater; health hazard and safety issues in small-scale mining; environmental issues in surface and underground mining of metalliferous, coal, uranium and industrial minerals; occupational health and safety; control of effluents from mineral processing, metallurgy and chemical plants; emerging technologies for environmental protection; reliability of waste containment structures; and tailings treatment, recycling and disposal. The conference featured 162 presentations, of which 30 have been catalogued separately for inclusion in this database. refs., tabs., figs.

  20. Systems configured to distribute a telephone call, communication systems, communication methods and methods of routing a telephone call to a service representative

    Science.gov (United States)

    Harris, Scott H.; Johnson, Joel A.; Neiswanger, Jeffery R.; Twitchell, Kevin E.

    2004-03-09

    The present invention includes systems configured to distribute a telephone call, communication systems, communication methods and methods of routing a telephone call to a customer service representative. In one embodiment of the invention, a system configured to distribute a telephone call within a network includes a distributor adapted to connect with a telephone system, the distributor being configured to connect a telephone call using the telephone system and output the telephone call and associated data of the telephone call; and a plurality of customer service representative terminals connected with the distributor and a selected customer service representative terminal being configured to receive the telephone call and the associated data, the distributor and the selected customer service representative terminal being configured to synchronize, application of the telephone call and associated data from the distributor to the selected customer service representative terminal.

  1. Minor and trace-elements in apiary products from a historical mining district (Les Malines, France).

    Science.gov (United States)

    Losfeld, Guillaume; Saunier, Jean-Baptiste; Grison, Claude

    2014-03-01

    The trace-elements (TE) contents of honey, royal-jelly and beeswax from a historical Zn-Pb mining district have been investigated to assess potential contamination. In spite of high levels of heavy metal (As, Cd, Tl, Pb) in wastes left after mining stopped, apiary products appear to be relatively free of TE contamination. For honey, the following average levels (±standard error) were observed: Zn 571±440μgkg(-1), Pb 26±20μgkg(-1), Tl 13±10μgkg(-1), Cd 7±6μgkg(-1) and As 3±4μg.kg(-1). These results bring additional data to the potential impact of brownfields left after mining on apiary products. They also bring new data to assess potential risks linked with honey consumption and discuss legal TE contents in honey and other food products from apiaries. Copyright © 2013 Elsevier Ltd. All rights reserved.

  2. Phylogeny-guided (meta)genome mining approach for the targeted discovery of new microbial natural products.

    Science.gov (United States)

    Kang, Hahk-Soo

    2017-02-01

    Genomics-based methods are now commonplace in natural products research. A phylogeny-guided mining approach provides a means to quickly screen a large number of microbial genomes or metagenomes in search of new biosynthetic gene clusters of interest. In this approach, biosynthetic genes serve as molecular markers, and phylogenetic trees built with known and unknown marker gene sequences are used to quickly prioritize biosynthetic gene clusters for their metabolites characterization. An increase in the use of this approach has been observed for the last couple of years along with the emergence of low cost sequencing technologies. The aim of this review is to discuss the basic concept of a phylogeny-guided mining approach, and also to provide examples in which this approach was successfully applied to discover new natural products from microbial genomes and metagenomes. I believe that the phylogeny-guided mining approach will continue to play an important role in genomics-based natural products research.

  3. An overview of the western Maryland coal combustion by-products/acid mine drainage initiative, Part 1 of 3

    International Nuclear Information System (INIS)

    Petzrick, P.; Rafalko, L.G.; Lyons, C.

    1996-01-01

    The western Maryland coal combustion by-products (CCB)/acid mine drainage (AMD) initiative (the Initiative) is a public-private partnership exploring the use of CCBs to eliminate AMD from Maryland's abandoned coal mines. This dynamic partnership will sponsor a series of large scale experiments and demonstrations addressing the engineering problems that characterize the beneficial application of CCBs to prevent acid formation on a scale that is consistent with the large quantity of these materials that will be produced by power plants in or near western Maryland. The initial demonstration is the filling and sealing of a small hand dug mine (the Frazee Mine) under approximately ninety feet of overburden on Winding Ridge near Friendsville, Maryland. A second demonstration is being planned for the Kempton mine complex. Subsequent demonstrations will focus on reducing the cost of materials handling and mine injection and solving the engineering problems characteristic of filling abandoned mines in Maryland. The Initiative is the flagship activity in Maryland's overall Ash Utilization Program, the goal of which is to promote beneficial use of all coal combustion by-products

  4. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    TS Department

    2008-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and midnight on 3 December. During this time, the fixed-line telephone and audio-conference services may be disrupted. However, the CCC and the Fire Brigade will be reachable at all times. Mobile telephone services (GSM) will not be affected by this work. For further details please contact mailto:Netops@cern.ch.

  5. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    TS Department

    2008-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and midnight on 3 December. During this time, the fixed-line telephone and audio-conference services may be disrupted. However, the CCC and the Fire Brigade will be reachable at all times. Mobile telephone services (GSM) will not be affected by this work. For further details please contact Netops@cern.ch.

  6. Surface mining

    Science.gov (United States)

    Robert Leopold; Bruce Rowland; Reed Stalder

    1979-01-01

    The surface mining process consists of four phases: (1) exploration; (2) development; (3) production; and (4) reclamation. A variety of surface mining methods has been developed, including strip mining, auger, area strip, open pit, dredging, and hydraulic. Sound planning and design techniques are essential to implement alternatives to meet the myriad of laws,...

  7. Investigating factors that influence level and dynamics of capital productivity in plants manufacturing equipment for mines

    Energy Technology Data Exchange (ETDEWEB)

    Karenov, R.S. (Karagandinskii Politekhnicheskii Institut (USSR))

    1990-10-01

    Analyzes productivity of capital in plants manufacturing equipment for underground coal mining in the USSR. Effects of the following factors are evaluated: working time, investment, mechanization of manufacturing processes, power of motors used to drive the manufacturing equipment, duration of a manufacturing cycle, cooperation degree, equipment service life. Effects of insufficient specialization of manufacturing plants and the manufacturing of mining equipment by repair shops of individual mines which should rather specialize in equipment repair and maintenance are evaluated. Analysis shows that specialization of the manufacturing plants could increase productivity of capital by 1.5-2.0 times, reduce labor consumption by 3-5 times and consumption of materials by 1.5-1.7 times. 4 refs.

  8. Mass balances by uranium-series disequilibria in natural phosphate deposits and mine products

    International Nuclear Information System (INIS)

    Osmond, J.K.; Cowart, J.B.

    1985-01-01

    In a closed system U-238 is in radioactive equilibrium with its longer lived daughters, U-234, Th-230, and Ra-226. In a system that is open on a time scale of 10 4 to 10 5 years, as in rock weathering, the various daughters and isotopes become separated. Nevertheless, equilibrium still pertains to the total system, so that material balances between weathering components and residual products can be calculated, based on parent-daughter radioactivity ratios. The authors have applied this balancing concept to the weathering of phosphatic ores in central Florida and to phosphate mining products. In the natural system studied in Florida, the leached zones are ten times more extensive than enriched zones, and have higher concentrations of Th-230 and Ra-226 relative to U-238 and U-234. Although there are significant movements of long-lived radio-elements locally, and occasional notable disequilibria of short-lived daughters, leaching by ground water is not a major factor in the regional budget. In the mining process, uranium follows the enriched phosphate and also the clay residues. Thorium and radium follow the clay residues and the gypsum by-product. Mine effluent waters, although somewhat higher in radioactivity than natural waters, do not remove appreciable amounts of the radio-elements

  9. Imouraren mining exploitation : Complementary studies Synthetic report Volum B - Mines

    International Nuclear Information System (INIS)

    1980-01-01

    The object of the current study is to determine the main technical characteristics of the reference project of a mine that can supply the necessary ore quantity at a production of 3000 tonnes uranium per year, along 10 years. The project is one of the possible solutions for exploiting the mine. The current study permits to establish : investment and functioning cost estimation, overall project of the mining exploitation program, necessary strength estimation, average ore grades evaluation and variations of these grades, utilities needs, production vizing program, main exploitation methods and necessary materials. Reference project study of the mine serves as base to the economics studies and studies optimization [fr

  10. Uranium - a challenging mining business

    International Nuclear Information System (INIS)

    Stadelhofer, J.W.; Wedig, M.J.

    2007-01-01

    The main application of uranium is its use as a fuel for the nuclear electricity generation. Presently about 68,000 t (177 mill. lbs) of uranium are annually required, of which 41,500 (108 mill. lbs) are provided from fresh mine production whereas 26,500 t (69 mill. lbs) are stock drawdown supplies from civil or military sources. Two-thirds of production are recovered by underground mining and about 75% (30,350 t) of the world's uranium mine production are extracted from top ten mines. All major uranium mining companies are making efforts to enlarge their production capacities: The paramount Cameco's Cigar Lake project has been delayed due to mine water inflow. Production is expected to commence by latest in 2010; the nameplate capacity of 6000 t/a should be reached in 2011. AREVA reported plans to invest about Euro 500 to 600 mill. to double its uranium production by 2010. In 2006 Denison Mines and International Uranium Corporation announced that they have entered into an agreement to merge the two companies in order to create a mid-tier, North American-focused uranium producer with the potential annual production of more than 5.5 mill. lbs of U 3 O 8 by 2010. The skyrocketing global electricity demand, growing public acceptance and more favourable policies have initiated a new round of global development of the nuclear industry. Against this backdrop, about 30,000 t/a to 40,000 t/a of additional mine production will be required within the upcoming 20 years to substitute secondary uranium supplies and to meet the expected increased demand; new start-up junior mining companies (e.g. Paladin) will contribute to this increased production. (orig.)

  11. Using Your VOICE(S: Adding Telephonic Communication to Pharmacy Education

    Directory of Open Access Journals (Sweden)

    Lorin B Grieve

    2017-06-01

    Full Text Available Pharmacists utilize a myriad of communication methods to deliver patient care. One of the most prevalent communication methods is the telephone. The University of Pittsburgh School of Pharmacy created a novel instructional and assessment technique to enhance student pharmacist training experiences in telephonic communication within the PharmD curriculum. Conflict of Interest We declare no conflicts of interest or financial interests that the authors or members of their immediate families have in any product or service discussed in the manuscript, including grants (pending or received, employment, gifts, stock holdings or options, honoraria, consultancies, expert testimony, patents and royalties   Type: Note

  12. Remote control of safety and technological mining processes in underground coal mines

    Energy Technology Data Exchange (ETDEWEB)

    Marjanovic, D. (Elektronska Industrija RO IRI OOUR Razvoj, Nis (Yugoslavia))

    1989-02-01

    Discusses importance of data relevant to remote monitoring of production and safety at work in underground coal mines. The EI PS 2000 multi-purpose system developed by Elektronska Industrija, Nis, for use with AP-X1 and AP-X2 microcomputers in Serbian mines is described. Component parts include the CUM-8 central unit, the CIP-8 communication interface processor, the SNM-64 disjunction unit, the NM-64 energy supply unit and the CRT alarm monitor. This system is designed to warn of mine fires, methane and coal dust explosions, to help in evacuating mine crews, to control production processes and mine management and other functions. 8 refs

  13. An investigation into control of radon and its daughter products in some Cornish mine atmospheres

    International Nuclear Information System (INIS)

    Dungey, C.J.; Hore, J.; Waller, M.D.

    1979-01-01

    Elements of the uranium series are widespread as trace elements in the granitic rocks in which much of Cornwall's mining takes place. The radon gas, together with its decay or daughter products, can be inhaled by the underground worker. It is now realised that even a small concentration of the gas can be harmful; this is reflected by the tightening of control standards in the U.S.A. by a factor of 30 in the past 10 years. The current standards are such that many non-uranium mines must now provide some means of control. As yet, no statutory limits have been set in the United Kingdom mining regulations, but the industry locally is hopeful of achieving reduced levels that will pre-empt any forthcoming legislation. The first requirement of any control technique is the ability to monitor the effects of any action. An instrument developed recently in the U.S.A. now enables the radon daughter concentration to be determined quickly on the spot, so the effectiveness of any control measures can be evaluated more rapidly. The evaluation of the best potential methods of control requires some understanding of the behaviour of the decay products in typical mine environments. Several control techniques are being tested, both in controlled experimental conditions at the Camborne School of Mines and in field conditions at South Crofty and Wheal Pendarves mines. The experience and results of these tests so far are examined. (author)

  14. Controlled study of the evolution of radon and its decay products in radioactive mine environments

    International Nuclear Information System (INIS)

    Calizaya A, F.

    1985-01-01

    This thesis discusses three aspects related to radon emissions and control of radon decay products in mine environments: (1) measurement of the effects of environmental parameters on radiation levels, (2) analysis of the data using ordinary linear regression and transfer function models and (3) prediction of the concentration of radioactive contaminants in the mine air. In-mine and laboratory experiments were conducted to develop the research data. In mine tests were conducted in a bulkhead isolated mine drift containing low grade uranium ore at the Colorado School of Mines, Experimental Mine with the US Bureau of Mines - Spokane Research Center (USBM, SRC) micro-computer based radiation monitoring system. Parameters such as amount of ore, amount of condensation nuclei in the mine air, temperature, air velocity, and barometric pressure were studied. The laboratory tests were conducted in an air-tight radon chamber equipped with a container of the radioactive material, various monitors, and the USBM, SRC Data Acquisition System. The effect of parameters such as ore grade, particle size, rock moisture, air temperature and relative humidity on radon concentrations were measured in the laboratory. Radiation levels, together with parameters affecting these levels, were measured over a period of one year (June 1984-July 1985) both in the laboratory model and in the field

  15. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    2007-01-01

    Maintenance work on the CERN telephone exchanges will be performed on 10 July from 8 p.m. to midnight. During this intervention, the fixed telephone services, audioconference services and GSM calls made via the 333 prefix may be disrupted. However, the CCC and the fire brigade will be reachable at all times. For more details about this maintenance work, please call the telephone switchboard on 76111 or send an e-mail. Telecom SectionIT/CS

  16. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    2007-01-01

    A maintenance of the CERN telephone exchanges will be performed on the 10th of July from 8 p.m. to midnight. During this intervention, the fixed telephone services, audioconference services, and GSM calls made via the 333 prefix may be disrupted. However, the CCC and the fire brigade will be reachable at any time. For more details about this maintenance, please contact the telephone switchboard at 76111 or by email. Telecom Section IT/CS

  17. The South African mining industry

    International Nuclear Information System (INIS)

    Langton, G.

    1982-01-01

    This paper covers six of the many mining and associated developments in South Africa. These are: (1) Deep level gold mining at Western Deep Levels Limited - (2) Palabora Mining Company Limited - SA's unique copper mine - (3) Production of steel and vanadium-rich slag at Highveld Steel and Vanadium Corporation - (4) Coal mining at Kriel and Kleinkopje Collieries - (5) A mass mining system for use below the Gabbro Sill at Premier Diamond Mine - (6) Uranium production - joint metallurgical scheme- Orange Free State Gold Mines. - For publication in this journal the original paper has been summarised. Should any reader wish to have the full text in English he should write to the author at the address below. (orig.) [de

  18. Mining in Australia

    Energy Technology Data Exchange (ETDEWEB)

    Shimada, S

    1986-01-01

    Statistics are given on: 1) Australian dependence on imported raw materials in 1980; 2) production levels in the different mining fields in 1981; 3) trends in the production of minerals over the years 1961-1981. The role of the mining industry in the Australian economy is outlined, and brief details given of its structure. Further statistics are given regarding trends in the production of coal, iron, salt, lead and zinc during the period 1961-1981, together with details of the number of people employed in these industries. Operations at some of the principal mines (coal, iron ore and salt) are outlined and 1983 production figures for all mineral resources are given. 18 refs., 21 figs., 5 tabs.

  19. A study on measures to reduce production cost of long-running collieries and coal mining mechanization

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-01

    The reducing coal market has been enforcing the coal industry to make exceptional rationalization and restructuring efforts since the end of the eighties. To the competition from crude oil and natural gas has been added the growing pressure from rising wages and rising production cost as the working get deeper. To improve the competitive position of the remaining 11 coal mines after the rationalization of the industry, studies to improve mining system have been carried out. This report consists of 3 subjects. 1) Designing of the bord and pillar mining method to extract gently inclined seams of the Dogye coal mine. 2) Mechanization of coal cutting by plough. 3) Achievement of the mechanization of coal mining compared to the previous year. (author). 27 refs.

  20. Production of Copper as a Complex Mining and Metallurgical Processing System in Polish Copper Mines of the Legnica-Glogów Copper Belt

    Science.gov (United States)

    Malewski, Jerzy

    2017-12-01

    Geological and technological conditions of Cu production in the Polish copper mines of the Legnica-Glogów Copper Belt are presented. Cu production is recognized as a technological fractal consisting of subsystems for mineral exploration, ore extraction and processing, and metallurgical treatment. Qualitative and quantitative models of these operations have been proposed, including estimation of their costs of process production. Numerical calculations of such a system have been performed, which allow optimize the system parameters according to economic criteria under variable Cu mineralization in the ore deposit. The main objective of the study is to develop forecasting tool for analysis of production efficiency in domestic copper mines based on available sources of information. Such analyses are primarily of social value, allowing for assessment of the efficiency of management of local mineral resources in the light of current technological and market constraints. At the same time, this is a concept of the system analysis method to manage deposit exploitation on operational and strategic level.

  1. Maintenance of the telephone exchange in building 40

    CERN Multimedia

    2006-01-01

    In order to secure the power supply of the telephone exchange in Building 40, maintenance work will be done on 18th December from 7.30 am to 8 am. During this intervention, the fixed telephone services in Building 39 and 40 will be interrupted. The fixed telephone services in other CERN buildings will not be affected by this maintenance. The mobile telephone services (GSM) will not be affected. For more details, please send your questions to Standard.Telephone@cern.ch Telecom Services IT/CS

  2. Analysis of accidents in uranium mines and suggestions on safety in production

    International Nuclear Information System (INIS)

    Xue Shiqian.

    1989-01-01

    The serious and fatal accidents happening in the uranium mines in China are descibed and analysed based on the classification, cause, age of the dead and economic losses brought by the accidents. The suggestions on safety in production are also presented

  3. Doctor-patient communication on the telephone.

    Science.gov (United States)

    Curtis, P; Evens, S

    1989-01-01

    Since its invention, the telephone has been an important tool in medical practice, particularly for primary care physicians. Approximately half the calls made to a physician's office during regular consulting hours are for clinical problems and most are handled effectively over the phone without an immediate office visit. Telephone encounters are generally very brief, and managing such calls requires a pragmatic approach that is often quite different from the approach taken in the office visit. The telephone encounter should be recognized and recorded as a specific medical interaction in the medical chart for both clinical and legal reasons. Effective telephone encounters depend on good communication skills; decision making regarding disposition is a major goal. The physician's perception of a medical problem may be different from the patient's; patients are frequently seeking advice and reassurance rather than diagnosis and treatment, and may call because of anxiety and psychological stress. For physicians and their families who are not prepared for after-hours telephone encounters, calls that interrupt more "legitimate" activities may result in anger or frustration for the physician and dissatisfaction for the patient.

  4. Radioecological situation in the area of the Priargun Production Mining and Chemical Association in Russian Zabaikalye Territory

    International Nuclear Information System (INIS)

    Shandala, N.K.; Titov, A.V.; Kiselev, S.M.; Akhromeev, S.V.; Semenova, M.P.

    2012-01-01

    'The Priargun Production Mining and Chemical Association' (hereinafter referred to as PPMCA) is a diversified mining company, which, in addition to underground mining of uranium ore, carries out refining of such ores in hydrometallurgical process to produce natural uranium oxide. The PPMCA facilities are sources of radiation and chemical contamination of the environment in the areas of their location. Contamination of local parts of the health protection zone results from discharges and releases, dust transport of radionuclides from the mine rock dumps containing uranium, radium, radon and its decay products, spillage of ore along highways, straits uraniferous pulp and mine water from the pool pump shaft station. The radionuclide migration results in groundwater contamination. In order to establish the strategy and develop criteria for the site remediation, independent radiation hygienic monitoring is being carried out over some years. The subjects of research include: soil, grass and media of open ponds (water, bottom sediments, water vegetation). We also measured the radon activity concentration inside surface workshops and auxiliaries. We determined the specific activity of natural radionuclides. The researches performed showed that in soil, vegetation, groundwater and local foods sampled in the vicinity of the uranium mines, there is a significant excess of 226 Ra and 2 32 Th content compared to areas outside the zone of influence of uranium mining.

  5. 7 CFR 1737.60 - Telephone loan budget.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 11 2010-01-01 2010-01-01 false Telephone loan budget. 1737.60 Section 1737.60... Cost Estimation Procedures § 1737.60 Telephone loan budget. (a) RUS shall prepare a “Telephone Loan Budget” (RUS Form 493) showing all costs for the proposed project and the amount of loan and nonloan...

  6. Statistical and Visualization Data Mining Tools for Foundry Production

    Directory of Open Access Journals (Sweden)

    M. Perzyk

    2007-07-01

    Full Text Available In recent years a rapid development of a new, interdisciplinary knowledge area, called data mining, is observed. Its main task is extracting useful information from previously collected large amount of data. The main possibilities and potential applications of data mining in manufacturing industry are characterized. The main types of data mining techniques are briefly discussed, including statistical, artificial intelligence, data base and visualization tools. The statistical methods and visualization methods are presented in more detail, showing their general possibilities, advantages as well as characteristic examples of applications in foundry production. Results of the author’s research are presented, aimed at validation of selected statistical tools which can be easily and effectively used in manufacturing industry. A performance analysis of ANOVA and contingency tables based methods, dedicated for determination of the most significant process parameters as well as for detection of possible interactions among them, has been made. Several numerical tests have been performed using simulated data sets, with assumed hidden relationships as well some real data, related to the strength of ductile cast iron, collected in a foundry. It is concluded that the statistical methods offer relatively easy and fairly reliable tools for extraction of that type of knowledge about foundry manufacturing processes. However, further research is needed, aimed at explanation of some imperfections of the investigated tools as well assessment of their validity for more complex tasks.

  7. Reprint of: Production scheduling of a lignite mine under quality and reserves uncertainty

    International Nuclear Information System (INIS)

    Galetakis, Michael; Roumpos, Christos; Alevizos, George; Vamvuka, Despina

    2012-01-01

    The effect of uncertainty sources to the stochastic optimization of the combined project of a new surface lignite mine exploitation and power plant operation for electricity generation is investigated. Major sources of uncertainty that were considered are the reserves and the quality of the lignite. Since probability distribution functions for these uncertainties were estimated during the detailed exploration phase of the deposit, the overall goal is then to determine the optimal capacity of the power plant and consequently the optimal production rate of the mine over the time. The optimization objective that was selected is the maximization of the net present value of the project. Emphasis is placed on the sensitivity analysis for the investigation of the effect of quality and reserves uncertainty on project optimization, on the mathematical formulation of risk attitude strategy and on increasing the efficiency of the optimization process by creating a limited set of feasible solutions applying empirical rules. The developed methodology was applied for the determination of the optimal annual production rate of a new surface lignite mine in the area of Ptolemais–Amynteon in Northern Greece. - Highlights: ► Quality and reserves uncertainty affects considerably the production scheduling. ► Stochastic optimization is greatly accelerated by incorporating Taylor's rule. ► Decisions can be made considering different risk level attitudes.

  8. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    2007-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and midnight on 20 November. Fixed-line telephone and audioconference services may be disrupted while the work is being carried out. However, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. For further details about the maintenance work, please contact the telephone switchboard on 76111 or by email. Telecom Section - IT/CS

  9. The SONICHAR coal mine and electricity production thermal plant in Tchirozerine (Niger. Chemical analysis of drainage waters

    International Nuclear Information System (INIS)

    2009-06-01

    After a brief presentation of the coal mining and electricity production activities of the SONICHAR, and the related concerns about the environmental impacts of these activities, this document reports analyses performed on mine drainage waters, and on water samples coming from a pit located upstream the mine effluent and from a pit close to this effluent. Different sulfates and metals display much higher contents than those admitted for drinkable water in Europe

  10. The Diversity and Productivity of Indigenous Forage in Former Limestone Mining Quarry in Karst Mountain of Southern Gombong, Central Java Indonesia

    Directory of Open Access Journals (Sweden)

    Doso Sarwanto

    2015-05-01

    Full Text Available Indonesia is a country that has a lot of limestone mountains, covering 15.4 million hectares. Limestone mountains have strategic functions as limestone is used as building materials and as raw material in cement industry. Therefore, limestone mining quarry in various areas of limestone mountains in Indonesia is increasingly widespread. The biggest negative impact of limestone mining is the formed open land which is abandoned and unutilized. Changes in the ecosystem will lead to the reduced levels of diversity and productivity of indigenous forage which will ultimately reduce the performance and development of ruminants livestock kept by farmers in the mountainous region of limestone. This study aims to determine the diversity and productivity of indigenous forage on former limestone mining quarry in limestone mountains of southern Gombong. The research was conducted through survey by identifying and measuring the forage production of sample plots assigned purposively. Location of the study was divided into three categories, mild, moderate and heavy mining. Results showed that soil fertility levels in open fields of former limestone mining in southern Gombong mountains are low with total N content of 0.049 - 0.141%, total P2O5 of 0.067 - 0.133% and total K2O of 0.086 - 0.100%. The diversity of indigenous forage on mild mining was more diverse than that of moderate and heavy mining, i.e. 13 species comprising 7 grass species, 2 legumes species, and 4 species of shrubs. The most dominant species in all mining categories are Cynodon dactylon, Imperata cylindrica, Ageratum conyzoides and Mikania micrantha. The results also showed that in the open land of mild mining had the highest production of fresh and dry matter compared to that of moderate and severe mining

  11. Mineral production and mining trends for selected non-fuel commodities in Idaho and Montana, 1905-2001

    Science.gov (United States)

    Larsen, Jeremy C.; Long, Keith R.; Assmus, Kenneth C.; Zientek, Michael L.

    2004-01-01

    Idaho and Montana state mining statistics were obtained from historical mineral production records and compiled into a continuous record from 1905 through 2001. To facilitate comparisons, the mineral production data were normalized by converting the units of measure to metric tons for all included commodities. These standardized statistical data include production rates for principal non-fuel mineral commodities from both Idaho and Montana, as well as the production rates of similar commodities for the U.S. and the world for contrast. Data are presented here in both tabular and bar chart format. Moreover, the tables of standardized mineral production data are also provided in digital format as, commodity_production.xls. Some significant historical events pertaining to the mining industry are described as well. When taken into account with the historical production data, this combined information may to help explain both specific fluctuations and general tendencies in the overall trends in the rates of mineral resource production over time.

  12. Mining Product Data Models: A Case Study

    Directory of Open Access Journals (Sweden)

    Cristina-Claudia DOLEAN

    2014-01-01

    Full Text Available This paper presents two case studies used to prove the validity of some data-flow mining algorithms. We proposed the data-flow mining algorithms because most part of mining algorithms focuses on the control-flow perspective. First case study uses event logs generated by an ERP system (Navision after we set several trackers on the data elements needed in the process analyzed; while the second case study uses the event logs generated by YAWL system. We offered a general solution of data-flow model extraction from different data sources. In order to apply the data-flow mining algorithms the event logs must comply a certain format (using InputOutput extension. But to respect this format, a set of conversion tools is needed. We depicted the conversion tools used and how we got the data-flow models. Moreover, the data-flow model is compared to the control-flow model.

  13. Rehabilitation of semi-arid coal mine spoil bank soils with mine residues and farm organic by-products

    Energy Technology Data Exchange (ETDEWEB)

    Salazar, M.; Bosch-Serra, A.; Estudillos, G.; Poch, R.M. [University of Lleida, Lleida (Spain). Dept. of Environmental & Soil Science

    2009-07-01

    A method of rehabilitating coal mine soils was studied under the conditions of a semi-arid climate, lack of topsoil but availability of farm by-products in NE Spain. The objectives of the research were to assess a new method in order to achieve a suitable substrate for the establishment of native vegetation, to evaluate environmental impacts associated with the reclamation process, and to determine the time necessary to integrate the treated area into the surrounding environment. Eight plots (10 x 35 m{sup 2}) were established in September 1997. Substrate combinations of two types of mine spoil (coal dust and coarse-sized material), two levels of pig slurry (39 and 94 Mg ha{sup -1}dry-wt), and cereal straw (0 and 15 Mg ha{sup -1}) were applied. Monitoring of select physical and chemical soil properties and vegetation characteristics was performed from 1997 until 2005. The bulk density and the saturated hydraulic conductivity measured did not limit plant development and water availability. Initial substrate salinity (1.37 S m{sup -1}) decreased with time and in the long term did not limit plant colonization to salinity-adapted species. Initial nitrate concentration was 298 mg kg{sup -1}, but was reduced significantly to acceptable values in 3 years (55 mg kg{sup -1}) and the measured pH (7.6) was maintained at the level of initial spoil values. Vegetation cover reached up to 90%. In the treated area, spontaneous vegetation cover (15 to 70%) colonized the nonsown areas widely. In the medium term, vegetation cover tended to be higher in plots with a thicker layer of coal dust material and the higher slurry rate. Soil rehabilitation and environmental reintegration, taking into account soil and vegetation indicators, was possible in the studied area with low cost inputs using residual materials from mining activities and animal husbandry by-products.

  14. 24 CFR 3285.704 - Telephone and cable TV.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 5 2010-04-01 2010-04-01 false Telephone and cable TV. 3285.704....704 Telephone and cable TV. Refer to § 3285.906 for considerations pertinent to installation of telephone and cable TV. ...

  15. Identifying the core competencies of mental health telephone triage.

    Science.gov (United States)

    Sands, Natisha; Elsom, Stephen; Gerdtz, Marie; Henderson, Kathryn; Keppich-Arnold, Sandra; Droste, Nicolas; Prematunga, Roshani K; Wereta, Zewdu W

    2013-11-01

    The primary aim of this study was to identify the core competencies of mental health telephone triage, including key role tasks, skills, knowledge and responsibilities, in which clinicians are required to be competent to perform safe and effective triage. Recent global trends indicate an increased reliance on telephone-based health services to facilitate access to health care across large populations. The trend towards telephone-based health services has also extended to mental health settings, evidenced by the growing number of mental health telephone triage services providing 24-hour access to specialist mental health assessment and treatment. Mental health telephone triage services are critical to the early identification of mental health problems and the provision of timely, appropriate interventions. In spite of the rapid growth in mental health telephone triage and the important role these services play in the assessment and management of mental illness and related risks, there has been very little research investigating this area of practice. An observational design was employed to address the research aims. Structured observations (using dual wireless headphones) were undertaken on 197 occasions of mental health telephone triage over a three-month period from January to March 2011. The research identified seven core areas of mental health telephone triage practice in which clinicians are required to be competent in to perform effective mental health telephone triage, including opening the call; performing mental status examination; risk assessment; planning and action; termination of call; referral and reporting; and documentation. The findings of this research contribute to the evidence base for mental health telephone triage by articulating the core competencies for practice. The mental health telephone triage competencies identified in this research may be used to define an evidence-based framework for mental health telephone triage practice that aims to

  16. Cellular telephone use and cancer risk

    DEFF Research Database (Denmark)

    Schüz, Joachim; Jacobsen, Rune; Olsen, Jørgen H.

    2006-01-01

    BACKGROUND: The widespread use of cellular telephones has heightened concerns about possible adverse health effects. The objective of this study was to investigate cancer risk among Danish cellular telephone users who were followed for up to 21 years. METHODS: This study is an extended follow......-up of a large nationwide cohort of 420,095 persons whose first cellular telephone subscription was between 1982 and 1995 and who were followed through 2002 for cancer incidence. Standardized incidence ratios (SIRs) were calculated by dividing the number of observed cancer cases in the cohort by the number...... expected in the Danish population. RESULTS: A total of 14,249 cancers were observed (SIR = 0.95; 95% confidence interval [CI] = 0.93 to 0.97) for men and women combined. Cellular telephone use was not associated with increased risk for brain tumors (SIR = 0.97), acoustic neuromas (SIR = 0.73), salivary...

  17. Uranium mining

    International Nuclear Information System (INIS)

    2008-01-01

    Full text: The economic and environmental sustainability of uranium mining has been analysed by Monash University researcher Dr Gavin Mudd in a paper that challenges the perception that uranium mining is an 'infinite quality source' that provides solutions to the world's demand for energy. Dr Mudd says information on the uranium industry touted by politicians and mining companies is not necessarily inaccurate, but it does not tell the whole story, being often just an average snapshot of the costs of uranium mining today without reflecting the escalating costs associated with the process in years to come. 'From a sustainability perspective, it is critical to evaluate accurately the true lifecycle costs of all forms of electricity production, especially with respect to greenhouse emissions, ' he says. 'For nuclear power, a significant proportion of greenhouse emissions are derived from the fuel supply, including uranium mining, milling, enrichment and fuel manufacture.' Dr Mudd found that financial and environmental costs escalate dramatically as the uranium ore is used. The deeper the mining process required to extract the ore, the higher the cost for mining companies, the greater the impact on the environment and the more resources needed to obtain the product. I t is clear that there is a strong sensitivity of energy and water consumption and greenhouse emissions to ore grade, and that ore grades are likely to continue to decline gradually in the medium to long term. These issues are critical to the current debate over nuclear power and greenhouse emissions, especially with respect to ascribing sustainability to such activities as uranium mining and milling. For example, mining at Roxby Downs is responsible for the emission of over one million tonnes of greenhouse gases per year and this could increase to four million tonnes if the mine is expanded.'

  18. ANFO bulk loading in coal mines

    Energy Technology Data Exchange (ETDEWEB)

    Gajjar, A.

    1987-08-01

    With India's total coal production projected to increase from 152 to 237 million tons by 1990, net additional production from new mines must be more because of substantial depletion in existing mines. This article discusses the best possible application of explosive techniques in open-cast coal mines to economize production cost. The most energy-efficient and safest explosive is ANFO (ammonium nitrate, fuel oil); however, manual charging by INFO is not possible. Therefore, the solution is the application of bulk-loading systems of ANFO for giant mining operations. Cost of blasting per ton of coal production in India is in the range of Rs 25. Thus, the author suggests it will be the responsibility of mining engineers to see that the ANFO based bulk-loading system is implemented and the cost of production per ton reduced to Rs 19.50.

  19. Network of mobile telephone communication: necessarily of 3. Millennium

    International Nuclear Information System (INIS)

    Dejana, V.; Dragan, M.; Nebojsa, V.; Simo, S.

    2002-01-01

    Mobile telephones have transformed the telecommunications industry. These devices can be used to make telephone calls from almost anywhere. There are two types, one has the antenna mounted on the handset and the other has the antenna mounted on a separate transmitter or, if the telephone is installed in a vehicle, mounted on the roof or rear window. Communication between a mobile telephone and the nearest base station is achieved by the microwave emissions from the antenna. Concerns have been raised about the type of mobile telephone that has the antenna in the handset. In this case, the antenna is very close to the user's head during normal use of the telephone and there is concern about the level of microwave emissions to which the brain is being exposed. Those telephones that have the antenna mounted elsewhere are of no concern, since exposure levels decrease rapidly with increasing distance from the antenna. Cordless telephones, which need to be operated within about 20 metres of a base unit that is connected directly to the telephone system, do not have any health concerns associated with their use because exposure levels are very low

  20. Assisting the visually impaired to deal with telephone interview jobs using information and commutation technology.

    Science.gov (United States)

    Yeh, Fung-Huei; Yang, Chung-Chieh

    2014-12-01

    This study proposed a new information and commutation technology assisted blind telephone interview (ICT-ABTI) system to help visually impaired people to do telephone interview jobs as normal sighted people and create more diverse employment opportunities for them. The study also used an ABAB design to assess the system with seven visually impaired people. As the results, they can accomplish 3070 effective telephone interviews per month independently. The results also show that working performance of the visually impaired can be improved effectively with appropriate design of operation working flow and accessible software. The visually impaired become productive, lucrative, and self-sufficient by using ICT-ABTI system to do telephone interview jobs. The results were also shared through the APEC Digital Opportunity Center platform to help visually impaired in Philippines, Malaysia and China. Copyright © 2014 Elsevier Ltd. All rights reserved.

  1. Numerical Study on 4-1 Coal Seam of Xiaoming Mine in Ascending Mining

    Science.gov (United States)

    Tianwei, Lan; Hongwei, Zhang; Sheng, Li; Weihua, Song; Batugin, A. C.; Guoshui, Tang

    2015-01-01

    Coal seams ascending mining technology is very significant, since it influences the safety production and the liberation of dull coal, speeds up the construction of energy, improves the stability of stope, and reduces or avoids deep hard rock mining induced mine disaster. Combined with the Xiaoming ascending mining mine 4-1, by numerical calculation, the paper analyses ascending mining 4-1 factors, determines the feasibility of ascending mining 4-1 coalbed, and proposes roadway layout program about working face, which has broad economic and social benefits. PMID:25866840

  2. Fuel cells for telephone networks

    International Nuclear Information System (INIS)

    Wells, J.D.; Scott, D.S.

    1993-01-01

    Critical telephone network systems are currently protected from electric utility power failures by a backup system consisting of lead-acid batteries and an engine-alternator. It is considered here an alternate power system where less expensive off-peak commercial electricity electrolyses water, while fuel cells draw continuously on the stored gas products to provide direct current for the protected equipment. The lead acid batteries are eliminated. The benefits and costs of the existing and alternate systems in scenarios with various system efficiencies, capital costs, and electric utility rates and incentives, are compared. In today's conditions, the alternate system is not economical; however, cost and performance feasibility domains are identified. 2 figs., 4 tabs., 12 refs

  3. Review of South American mines

    International Nuclear Information System (INIS)

    Anon.

    1984-01-01

    A general overview is presented of the mining activity and plans for South America. The countries which are presented are Columbia, Argentina, Brazil, Venezuela, Chile, Peru, and Bolivia. The products of the mines include coal, bauxite, gold, iron, uranium, copper and numerous other minor materials. A discussion of current production, support and processing facilities, and mining strategies is also given

  4. Mining Waste Classification and Quantity of Non-Metal Minesin Slovenia

    Directory of Open Access Journals (Sweden)

    Ana Burger

    2007-06-01

    Full Text Available Mining is an important human activity that creates wealth and supplies materials for maintaining standard of living and further human development. However, mining has also negative impacts on the environment and society. One of them is the production of mining waste throughout the entire mining cycle, in particular in the mine development and operation /production stage.Due to the EU Directive 2006/21/EC on the management of waste from the extractive industries and its implementation in Member state, estimation on quality and quantity of mining waste from active non-metal mines in Slovenia was carried out. In the selected mines mining and processing was closely examined. With material flow analysis quantity and characteristics of mining waste were defined for several mines of different commodities.Data on mining waste were afterwards generalized in order to get an overall country evaluation on mining waste “production” of non-metal mines.Mining waste as a result of mining and beneficiation processes in non-metal mines of Slovenia is either inert or non-hazardous. Most of the mining waste is used for mine reclamation running simultaneously with the production phase. The largest amounts of mining waste per unit produced are created in dimension stone industry. Since the dimensionstone production is small, the waste amount is negligible. Large quantities of mining waste are produced in crushed stone and, sand and gravel operations, because aggregate production is pretty large with regard to other non-metals production in Slovenia. We can therefore conclude that large quantities of mining waste from non-metal mines, which are mostly used in reclamation and for side products, do not represent danger to the environment.

  5. Industrial Mining's flexibility aids in customer satisfaction

    Energy Technology Data Exchange (ETDEWEB)

    1985-08-01

    Mining flexibility and customer specification keeps Industrial Mining of Youngstown, Ohio competitive in a tough environment. The company fills the needs of the small customer who requires a special blend or sized product. Industrial Mining works terrain that was uneconomical to mine before but is now profitable. Draglines and mobile equipment are used for overburden removal for economical and flexible mining with most mining by the contour method. Industrial Mining's preparation plant was constructed in 1979 to enable the company to wash and screen different stoker products and utility coal with a modern on-site lab a quality product can be constantly maintained. A wheel loader is used to feed the hopper from selective stockpiles and this allows blending on the raw side or within the plant.

  6. Underground coal mining technology - the future

    Energy Technology Data Exchange (ETDEWEB)

    Lama, R P [Kembla Coal and Coke Pty Limited, Wollongong, NSW (Australia)

    1989-01-01

    Discusses development of underground coal mining in Australia in the last four decades. The following aspects are reviewed: technology for underground mining (longwall mining, unidirectional cutting, bidirectional cutting, operation of more than one shearer on a working face, optimum dimensions of longwall blocks), longwall productivity (productivity increase will depend on increasing the availability factor of equipment, reducing failures due to human errors, organizational models, improving on-site decision making, improving monitoring, maintenance, planning and scheduling, concept of 'Transparent Mine'), roadway development systems (types of heading machines, standard systems for mine drivage and roof bolting and their productivity), size of coal mines, man and material transport systems (20,000-30,000 t/d from a single longwall face, mine shafts with a diameter 9-10 m), mine layout design (layout of longwall blocks, main intakes and returns situated in rock layers), mine environmental systems (ventilation systems, gas control), management, training and interpersonal relationships. Future coal mines will be developed with an integral capacity of 8-10 Mt/a from a single longwall operation with main development arteries placed in rocks. Development of gate roadways will require novel solutions with continuous cutting, loading and bolting. Information technology, with the concept of 'transparent mine', will form the backbone of decision making.

  7. The hydrogen mine introduction initiative

    Energy Technology Data Exchange (ETDEWEB)

    Betournay, M.C.; Howell, B. [Natural Resources Canada, Ottawa, ON (Canada). CANMET Mining and Mineral Sciences Laboratories

    2009-07-01

    In an effort to address air quality concerns in underground mines, the mining industry is considering the use fuel cells instead of diesel to power mine production vehicles. The immediate issues and opportunities associated with fuel cells use include a reduction in harmful greenhouse gas emissions; reduction in ventilation operating costs; reduction in energy consumption; improved health benefits; automation; and high productivity. The objective of the hydrogen mine introduction initiative (HMII) is to develop and test the range of fundamental and needed operational technology, specifications and best practices for underground hydrogen power applications. Although proof of concept studies have shown high potential for fuel cell use, safety considerations must be addressed, including hydrogen behaviour in confined conditions. This presentation highlighted the issues to meet operational requirements, notably hydrogen production; delivery and storage; mine regulations; and hydrogen behaviour underground. tabs., figs.

  8. Utilization of coal ash/coal combustion products for mine reclamation

    International Nuclear Information System (INIS)

    Dolence, R.C.; Giovannitti, E.

    1997-01-01

    Society's demand for an inexpensive fuel, combined with ignorance of the long term impacts, has left numerous scars on the Pennsylvania landscape. There are over 250,000 acres of abandoned surface mines with dangerous highwalls and water filled pits. About 2,400 miles of streams do not meet water quality standards because of drainage from abandoned mines. There are uncounted households without an adequate water supply due to past mining practices. Mine fires and mine subsidence plague many Pennsylvania communities. The estimated cost to reclaim these past scars is over $15 billion. The beneficial use of coal ash in Pennsylvania for mine reclamation and mine drainage pollution abatement projects increased during the past ten years. The increase is primarily due to procedural and regulatory changes by the Department of Environmental Protection (DEP). Prior to 1986, DEP required a mining permit and a separate waste disposal permit for the use of coal ash in backfilling and reclaiming a surface mine site. In order to eliminate the dual permitting requirements and promote mine reclamation, procedural changes now allow a single permit which authorize both mining and the use of coal ash in reclaiming active and abandoned pits. The actual ash placement, however, must be conducted in accordance with the technical specifications in the solid waste regulations

  9. Uranium mining and production: A legal perspective on regulating an important resource

    International Nuclear Information System (INIS)

    Thiele, Lisa

    2013-01-01

    The importance of uranium can be examined from several perspectives. First, natural uranium is a strategic energy resource because it is a key ingredient for the generation of nuclear power and, therefore, it can affect the energy security of a state. Second, natural uranium is also a raw material in relative abundance throughout the world, which can, through certain steps, be transformed into nuclear explosive devices. Thus, there is both an interest in the trade of uranium resources and a need for their regulatory control. The importance of uranium to the worldwide civilian nuclear industry means that its extraction and processing - the so-called 'front end' of the nuclear fuel cycle - is of regulatory interest. Like 'ordinary' metal mining, which is generally regulated within a country, uranium mining must also be considered from the more particular perspective of regulation and control, as part of the international nuclear law regime that is applied to the entire nuclear fuel cycle. The present overview of the regulatory role in overseeing and controlling uranium mining and production will outline the regulation of this resource from an international level, both from early days to the present day. Uranium mining is not regulated internationally; rather, it is a state responsibility. However, developments at the international level have, over time, led to better national regulation. One can note several changes in the approach to the uranium industry since the time that uranium was first mined on a significant scale, so that today the mining and trade of uranium is a well-established and regulated industry much less marked by secrecy and Cold War sentiment. At the same time, it is informed by international standards and conventions, proliferation concerns and a modern regard for environmental protection and the health and safety of workers and the public. (author)

  10. Design problems of social-administrative complexes on the example of the Morcinek mine

    Energy Technology Data Exchange (ETDEWEB)

    Bielski, M.; Trojanowski, S.

    1987-01-01

    Buildings at the Morcinek mine head are designed as four complexes: the lamp room of 28,850 m/sup 3/ for 6,440 lamps; the washing room block of 92,491 m/sup 3/ for 7,623 miners (including mine operation offices, control room, mine rescue station, laundry and canteen); administration and social services block of 47,645 m/sup 3/ (mine management, telephone exchange, dispatcher room, health services, rooms for training and social organizations, snack bar); shaft landing and waiting room block of 12,080 m/sup 3/ (transportation, bus depot, parking). The buildings are built as frame type structures. Reinforced concrete is used for frames up to 6 m and steel for the larger ones. Prefabricated reinforced concrete floors and skirt type walls of glass panels, bricks or prefabricated materials are incorporated. The multi-storey buildings are built on 'Franki' type piles.

  11. Impact of the telephone assistive device (TAD) on stuttering severity while speaking on the telephone.

    Science.gov (United States)

    Chambers, Nola

    2009-01-01

    There is extensive experimental evidence that altered auditory feedback (AAF) can have a clinically significant effect on the severity of speech symptoms in people who stutter. However, there is less evidence regarding whether these experimental effects can be observed in naturalistic everyday settings particularly when using the telephone. This study aimed to investigate the effectiveness of the Telephone Assistive Device (TAD), which is designed to provide AAF on the telephone to people who stutter, on reducing stuttering severity. Nine adults participated in a quasi-experimental study. Stuttering severity was measured first without and then with the device in participants' naturalistic settings while making and receiving telephone calls (immediate benefit). Participants were then allowed a week of repeated use of the device following which all measurements were repeated (delayed benefit). Overall, results revealed significant immediate benefits from the TAD in all call conditions. Delayed benefits in received and total calls were also significant. There was substantial individual variability in response to the TAD but none of the demographic or speech-related factors measured in the study were found to significantly impact the benefit (immediate or delayed) derived from the TAD. Results have implications for clinical decision making for adults who stutter.

  12. Technological highwall mining

    Energy Technology Data Exchange (ETDEWEB)

    Davison, I. [Highwall Systems (United States)

    2006-09-15

    The paper explores the issues facing highwall mining. Based in Chilhowie, Virginia, American Highwall Systems has developed a highwall mining system that will allow the mining of coal seams from 26 in to 10 ft in thickness. The first production model, AH51, began mining in August 2006. Technologies incorporated into the company's mining machines to improve the performance, enhance the efficiency, and improve the reliability of the highwall mining equipment incorporate technologies from many disciplines. Technology as applied to design engineering, manufacturing and fabrication engineering, control and monitoring computer hardware and software has played an important role in the evolution of the American Highwall Systems design concept. 5 photos.

  13. Mining

    Directory of Open Access Journals (Sweden)

    Khairullah Khan

    2014-09-01

    Full Text Available Opinion mining is an interesting area of research because of its applications in various fields. Collecting opinions of people about products and about social and political events and problems through the Web is becoming increasingly popular every day. The opinions of users are helpful for the public and for stakeholders when making certain decisions. Opinion mining is a way to retrieve information through search engines, Web blogs and social networks. Because of the huge number of reviews in the form of unstructured text, it is impossible to summarize the information manually. Accordingly, efficient computational methods are needed for mining and summarizing the reviews from corpuses and Web documents. This study presents a systematic literature survey regarding the computational techniques, models and algorithms for mining opinion components from unstructured reviews.

  14. 7 CFR 1744.63 - The telephone loan budget.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 11 2010-01-01 2010-01-01 false The telephone loan budget. 1744.63 Section 1744.63... Disbursement of Funds § 1744.63 The telephone loan budget. When the loan is made, RUS provides the borrower a Telephone Loan Budget, RUS Form 493. This budget divides the loan into budget accounts such as “Engineering...

  15. The accident analysis of mobile mine machinery in Indian opencast coal mines.

    Science.gov (United States)

    Kumar, R; Ghosh, A K

    2014-01-01

    This paper presents the analysis of large mining machinery related accidents in Indian opencast coal mines. The trends of coal production, share of mining methods in production, machinery deployment in open cast mines, size and population of machinery, accidents due to machinery, types and causes of accidents have been analysed from the year 1995 to 2008. The scrutiny of accidents during this period reveals that most of the responsible factors are machine reversal, haul road design, human fault, operator's fault, machine fault, visibility and dump design. Considering the types of machines, namely, dumpers, excavators, dozers and loaders together the maximum number of fatal accidents has been caused by operator's faults and human faults jointly during the period from 1995 to 2008. The novel finding of this analysis is that large machines with state-of-the-art safety system did not reduce the fatal accidents in Indian opencast coal mines.

  16. Gas data transmission system by satellite telephone; Systeme de transmission de donnees sur le gaz utilisant le telephone par satellite

    Energy Technology Data Exchange (ETDEWEB)

    Ogasawara, S.; Tanji, A. [Dengineer Co., Ltd (Japan); Akiyama, S. [Buyo Gas Company (Japan)

    2000-07-01

    Dengineer Co., Ltd. and Buyo Gas Co., Ltd. had been developing and using the data and alarm transmission system by public telephone since 1984, that was first practical use in Japan. It is very important for business management that adjusts the production value of gas by measuring gas pressures in each governor. Also, it is indispensable to know the accident of gas leakage or abnormal gas pressure quickly. But this convenient system is not spread yet in Japanese market cause of the following reasons. - Take time and cost for installation of terminal station. - Terminal station is apt to damage by thunder. - Big disaster must stop working this system. In order to solve those problems, we have developed and tested the system organized of the satellite telephone system and solar cells for power. This system will be very useful for wide place, not only Japanese market but also the area, which has no electricity and phone. Also, it will be convenient for international rescue as is able to access it from the foreign countries. (authors)

  17. Worldwide ISL Uranium Mining Outlook

    International Nuclear Information System (INIS)

    Boytsov, A.; Stander, S.; Martynenko, V.

    2014-01-01

    Contents: • ISL uranium production historical review and current status; • ISL versus conventional mining; • Acid versus alkaline ISL; • ISL cost considerations; • Principal criteria and parameters for ISL mining; • ISL production forecast and resources availability

  18. Mines in the Four Corners anticipate growth

    Energy Technology Data Exchange (ETDEWEB)

    Buchsbaum, L.

    2008-02-15

    Productive mines in the southwest deplete reserves, while the government drags its heels on new power projects. Production in Arizona and New Mexico has fallen 18% over the last four years to 34.1 million tons. With Chevron Mining's McKinley mine rapidly depleting its reserves the industry will continue to contract. In the last three years at least three large mines in the Four Corners have terminated operations. Three others remain captive operations: BHP Billiton's San Juan Underground and Navajo Surface operations and Peabody Energy's Kayenta surface mine. In 2006 the Black Mesa mine stopped producing coal. These four mines are isolated from the national railways. Peabody's new El Segundo surface mine near Grants, NM is increasing production. If the planned $3 billion Desert Rock coal-fired power plant is built this will present a new market for the Navajo mine. The article gives details about the state of the aforementioned mines and of the new King II coal mine on the northern periphery of the San Juan basin and discusses the state of plans for the Desert Rock Energy Project. 5 photos.

  19. Upgrade of the CERN telephone exchange

    CERN Multimedia

    2006-01-01

    As part of the upgrade of telephone services, maintenance work will be carried out on the CERN switching centre between 8.00 p.m. and 10.00 p.m. on Monday 9 October. Telephone services may be disrupted and possibly even interrupted during this time. We apologise in advance for any inconvenience this may cause. CERN TELECOM Service

  20. Mining industry in Republic of Macedonia

    International Nuclear Information System (INIS)

    Vrentsovski, Angele

    1996-01-01

    Mining production has a special significance in the economy of the Republic of Macedonia. The mining comprises 6% of national earnings in the Republic of Macedonia and accounts for 16% of all people employed in industry. Mining products include coal which assures over 80% of all electrical energy as well as raw materials for metallurgy, the refractory and clay industry, decorative stones, etc. Given the conditions of the fixed economy in the former Yugoslavia, the State controlled the prices associated with mining. Following the break up of Yugoslavia and the independence of the Republic of Macedonia, a new period was entered, one dictated by a market economy and massive privatization - a period of transition. This new period was hindered by the blockades on both north and south borders and resulted in negative repercussions for mining production, especially raw materials which were intended for export. This paper intends to describe the current situation of mining production and to evaluate the realistic economic opportunities regarding the new market conditions. (author). 5 refs., 2 tabs

  1. Adverse Event extraction from Structured Product Labels using the Event-based Text-mining of Health Electronic Records (ETHER)system.

    Science.gov (United States)

    Pandey, Abhishek; Kreimeyer, Kory; Foster, Matthew; Botsis, Taxiarchis; Dang, Oanh; Ly, Thomas; Wang, Wei; Forshee, Richard

    2018-01-01

    Structured Product Labels follow an XML-based document markup standard approved by the Health Level Seven organization and adopted by the US Food and Drug Administration as a mechanism for exchanging medical products information. Their current organization makes their secondary use rather challenging. We used the Side Effect Resource database and DailyMed to generate a comparison dataset of 1159 Structured Product Labels. We processed the Adverse Reaction section of these Structured Product Labels with the Event-based Text-mining of Health Electronic Records system and evaluated its ability to extract and encode Adverse Event terms to Medical Dictionary for Regulatory Activities Preferred Terms. A small sample of 100 labels was then selected for further analysis. Of the 100 labels, Event-based Text-mining of Health Electronic Records achieved a precision and recall of 81 percent and 92 percent, respectively. This study demonstrated Event-based Text-mining of Health Electronic Record's ability to extract and encode Adverse Event terms from Structured Product Labels which may potentially support multiple pharmacoepidemiological tasks.

  2. Why can rossing uranium mine keep mining even in low price conditions of uranium market

    International Nuclear Information System (INIS)

    Tan Chenglong

    2004-01-01

    Rossing uranium mine is the only operating uranium mine in the world where the uranium occurs in intrusive alaskite. In the past 10 years, uranium market regressed in the world, uranium production weakened, expenditures of capital for uranium exploration were insufficient. Uranium spot market price rapidly decreased from $111.8/kg U in late 1970's to $22.1/kg U in mid-1990's. Why can Rossing uranium mine mined with traditional underground and open pit operation can keep running even in low price conditions of uranium market? Augumenting research on the deposit, mineral and technology, decreasing production cost and improving selling strategy can not only maintain Rossing's uranium production at present, but also ensure sustainable development in the coming 15 years. Exploration of low-costed uranium deposits is very important. However, obvious economic benefits can be obtained, as Rossing uranium mine does, by augumenting geological-economical research on the known uranium deposits of hard-rock type and by using new techniques to improve the conventional techniques in the uranium mine development. (authors)

  3. 75 FR 18500 - Guidance on Improving EPA Review of Appalachian Surface Coal Mining Operations under the Clean...

    Science.gov (United States)

    2010-04-12

    ..., Monday through Friday, excluding legal holidays. The telephone number for the Public Reading Room is (202... recognizes the importance of this guidance to its Federal and state partners, to the regulated community, and... of Appalachian Surface Coal Mining Operations under the Clean Water Act, National Environmental...

  4. Project development for mining-metallurgical complexes for production of uranium concentrates - an analysis and a methodology

    International Nuclear Information System (INIS)

    Ajuria G, S.; Blanco P, B.; Pena A, J.; Manzanera Q, C.

    1978-10-01

    Activities comprising the development of a project for a mining-metallurgical complex for production of uranium concentrates, from sampling and evaluation of an orebody until plant start-up, are analyzed. The analysis of the orebody, characterization of the ore, bench scale and pilot plant metallurgical studies, environmental studies and economic analyses of the project are described. The mining project and mine preparation and engineering and construction of the plant are reviewed in less detail. The estimated time lapse for the development of a typical project under ideal conditions is 66 months. A bar diagram is included showing an approximate timetable for each activity. (author)

  5. Mining Method

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Young Shik; Lee, Kyung Woon; Kim, Oak Hwan; Kim, Dae Kyung [Korea Institute of Geology Mining and Materials, Taejon (Korea, Republic of)

    1996-12-01

    The reducing coal market has been enforcing the coal industry to make exceptional rationalization and restructuring efforts since the end of the eighties. To the competition from crude oil and natural gas has been added the growing pressure from rising wages and rising production cost as the workings get deeper. To improve the competitive position of the coal mines against oil and gas through cost reduction, studies to improve mining system have been carried out. To find fields requiring improvements most, the technologies using in Tae Bak Colliery which was selected one of long running mines were investigated and analyzed. The mining method appeared the field needing improvements most to reduce the production cost. The present method, so-called inseam roadway caving method presently is using to extract the steep and thick seam. However, this method has several drawbacks. To solve the problems, two mining methods are suggested for a long term and short term method respectively. Inseam roadway caving method with long-hole blasting method is a variety of the present inseam roadway caving method modified by replacing timber sets with steel arch sets and the shovel loaders with chain conveyors. And long hole blasting is introduced to promote caving. And pillar caving method with chock supports method uses chock supports setting in the cross-cut from the hanging wall to the footwall. Two single chain conveyors are needed. One is installed in front of chock supports to clear coal from the cutting face. The other is installed behind the supports to transport caved coal from behind. This method is superior to the previous one in terms of safety from water-inrushes, production rate and productivity. The only drawback is that it needs more investment. (author). 14 tabs., 34 figs.

  6. Recent developments in uranium resources and production with emphasis on in situ leach mining. Proceedings of a technical meeting

    International Nuclear Information System (INIS)

    2004-06-01

    An important role of the International Atomic Energy Agency is establishing contacts between Member States in order to foster the exchange of scientific and technical information on uranium production technologies. In situ leach (ISL) mining is defined as, the extraction of uranium from the host sandstone by chemical solutions and the recovery of uranium at the surface. ISL extraction is conducted by injecting a suitable leach solution into the ore zone below the water table; oxidizing, complexing, and mobilizing the uranium; recovering the pregnant solutions through production wells; and, finally, pumping the uranium bearing solution to the surface for further processing. As compared with conventional mining, in situ leach is recognized as having economic and environmental advantages when properly employed by knowledgeable specialists to extract uranium from suitable sandstone type deposits. Despite its limited applicability to specific types of uranium deposits, in recent years ISL uranium mining has been producing 15 to 21 per cent of world output. In 2002, ISL production was achieved in Australia, China, Kazakhstan, the United States of America and Uzbekistan. Its importance is expected to increase with new projects in Australia, China, Kazakhstan and the Russian Federation. The Technical Meeting on Recent Development in Uranium Resources and Production with Special Emphasis on In Situ Leach Mining, was held in Beijing from 18 to 20 September 2002, followed by the visit of the Yili ISL mine, Xinjiang Autonomous Region, China, from 21 to 23 September 2002. The meeting, held in cooperation with the Bureau of Geology, China National Nuclear Cooperation, was successful in bringing together 59 specialists representing 18 member states and one international organization (OECD/Nuclear Energy Agency). The papers describe a wide variety of activities related to the theme of the meeting. Subjects such as geology, resources evaluation, licensing, and mine restoration were

  7. Evaluating the privacy properties of telephone metadata

    Science.gov (United States)

    Mayer, Jonathan; Mutchler, Patrick; Mitchell, John C.

    2016-01-01

    Since 2013, a stream of disclosures has prompted reconsideration of surveillance law and policy. One of the most controversial principles, both in the United States and abroad, is that communications metadata receives substantially less protection than communications content. Several nations currently collect telephone metadata in bulk, including on their own citizens. In this paper, we attempt to shed light on the privacy properties of telephone metadata. Using a crowdsourcing methodology, we demonstrate that telephone metadata is densely interconnected, can trivially be reidentified, and can be used to draw sensitive inferences. PMID:27185922

  8. Recent Developments in Microbiological Approaches for Securing Mine Wastes and for Recovering Metals from Mine Waters

    Directory of Open Access Journals (Sweden)

    D. Barrie Johnson

    2014-04-01

    Full Text Available Mining of metals and coals generates solid and liquid wastes that are potentially hazardous to the environment. Traditional methods to reduce the production of pollutants from mining and to treat impacted water courses are mostly physico-chemical in nature, though passive remediation of mine waters utilizes reactions that are catalysed by microorganisms. This paper reviews recent advances in biotechnologies that have been proposed both to secure reactive mine tailings and to remediate mine waters. Empirical management of tailings ponds to promote the growth of micro-algae that sustain populations of bacteria that essentially reverse the processes involved in the formation of acid mine drainage has been proposed. Elsewhere, targeted biomineralization has been demonstrated to produce solid products that allow metals present in mine waters to be recovered and recycled, rather than to be disposed of in landfill.

  9. 30 CFR 46.3 - Training plans.

    Science.gov (United States)

    2010-07-01

    ... Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING TRAINING AND..., National Mine Health and Safety Academy, 1301 Airport Road, Beaver, WV 25813-9426, Telephone: (304) 256... responsible for the health and safety training at the mine. This person may be the production-operator or...

  10. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT/CS

    2014-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8 p.m. and 2 a.m. on 26 August.   Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the Fire Brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work.

  11. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT Department

    2011-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 20h00 and 2h00 on the 16 November. Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. IT/CS

  12. Telephone-Based Coaching.

    Science.gov (United States)

    Boccio, Mindy; Sanna, Rashel S; Adams, Sara R; Goler, Nancy C; Brown, Susan D; Neugebauer, Romain S; Ferrara, Assiamira; Wiley, Deanne M; Bellamy, David J; Schmittdiel, Julie A

    2017-03-01

    Many Americans continue to smoke, increasing their risk of disease and premature death. Both telephone-based counseling and in-person tobacco cessation classes may improve access for smokers seeking convenient support to quit. Little research has assessed whether such programs are effective in real-world clinical populations. Retrospective cohort study comparing wellness coaching participants with two groups of controls. Kaiser Permanente Northern California, a large integrated health care delivery system. Two hundred forty-one patients who participated in telephonic tobacco cessation coaching from January 1, 2011, to March 31, 2012, and two control groups: propensity-score-matched controls, and controls who participated in a tobacco cessation class during the same period. Wellness coaching participants received an average of two motivational interviewing-based coaching sessions that engaged the patient, evoked their reason to consider quitting, and helped them establish a quit plan. Self-reported quitting of tobacco and fills of tobacco cessation medications within 12 months of follow-up. Logistic regressions adjusting for age, gender, race/ethnicity, and primary language. After adjusting for confounders, tobacco quit rates were higher among coaching participants vs. matched controls (31% vs. 23%, p Coaching participants and class attendees filled tobacco-cessation prescriptions at a higher rate (47% for both) than matched controls (6%, p coaching was as effective as in-person classes and was associated with higher rates of quitting compared to no treatment. The telephonic modality may increase convenience and scalability for health care systems looking to reduce tobacco use and improve health.

  13. Automated genome mining of ribosomal peptide natural products

    Energy Technology Data Exchange (ETDEWEB)

    Mohimani, Hosein; Kersten, Roland; Liu, Wei; Wang, Mingxun; Purvine, Samuel O.; Wu, Si; Brewer, Heather M.; Pasa-Tolic, Ljiljana; Bandeira, Nuno; Moore, Bradley S.; Pevzner, Pavel A.; Dorrestein, Pieter C.

    2014-07-31

    Ribosomally synthesized and posttranslationally modified peptides (RiPPs), especially from microbial sources, are a large group of bioactive natural products that are a promising source of new (bio)chemistry and bioactivity (1). In light of exponentially increasing microbial genome databases and improved mass spectrometry (MS)-based metabolomic platforms, there is a need for computational tools that connect natural product genotypes predicted from microbial genome sequences with their corresponding chemotypes from metabolomic datasets. Here, we introduce RiPPquest, a tandem mass spectrometry database search tool for identification of microbial RiPPs and apply it for lanthipeptide discovery. RiPPquest uses genomics to limit search space to the vicinity of RiPP biosynthetic genes and proteomics to analyze extensive peptide modifications and compute p-values of peptide-spectrum matches (PSMs). We highlight RiPPquest by connection of multiple RiPPs from extracts of Streptomyces to their gene clusters and by the discovery of a new class III lanthipeptide, informatipeptin, from Streptomyces viridochromogenes DSM 40736 as the first natural product to be identified in an automated fashion by genome mining. The presented tool is available at cy-clo.ucsd.edu.

  14. Mining toward the year 2000

    International Nuclear Information System (INIS)

    Anon.

    1981-01-01

    Mining in South Africa to this present day has not been a case of dramatic development, rather a steady technical progress, assisted by a rising product market price. Prominent men in the mining industry look at the future in terms of that logical development. Coverage is given to gold, mine unionization, coal, rock bursts, ventilation, uranium and ocean mining

  15. Pricing of miniature vehicles made from telephone card waste

    Science.gov (United States)

    Puspitasari, N. B.; Pujotomo, D.; Muhardiansyah, H.

    2017-12-01

    The number of electronic devices in Indonesia in the last 10 years has been increasing quite drastically which contributes to more electronic waste. E-waste or electronic waste have different characteristics from other kinds of waste. Components of electronic waste often poisonous, consisting dangerous chemicals. The telephone card wasted is also an electronic waste. One alternative to handle and manage telephone card waste is to recycle it into collectible miniature vehicles. But the price of these miniatures is quite high, causing low interest in buying them. A research on the price of miniature vehicles in relation to consumers’ Ability to Pay (ATP) and Willingness to Pay (WTP) needs to be done. Segmentation analysis data, target, product positioning and product marketing mix are needed before commencing the research. Data collection is done through a survey by spreading questionnaire to 100 miniature vehicle collectors in Semarang, questioning their ability and willingness to pay recycled miniature vehicles. Calculations showed average ATP of Rp.112.520, 24 and average WTP of Rp.76.870. The last result showed the estimate pricing according to ATP and WTP which is Rp.66.000 with 58% of the respondents claiming to be willing and able to pay that price.

  16. Is there an association of circulatory hospitalizations independent of mining employment in coal-mining and non-coal-mining counties in west virginia?

    Science.gov (United States)

    Talbott, Evelyn O; Sharma, Ravi K; Buchanich, Jeanine; Stacy, Shaina L

    2015-04-01

    Exposures associated with coal mining activities, including diesel fuel exhaust, products used in coal processing, and heavy metals and other forms of particulate matter, may impact the health of nearby residents. We investigated the relationships between county-level circulatory hospitalization rates (CHRs) in coal and non-coal-mining communities of West Virginia, coal production, coal employment, and sociodemographic factors. Direct age-adjusted CHRs were calculated using West Virginia hospitalizations from 2005 to 2009. Spatial regressions were conducted to explore associations between CHR and total, underground, and surface coal production. After adjustment, neither total, nor surface, nor underground coal production was significantly related to rate of hospitalization for circulatory disease. Our findings underscore the significant role sociodemographic and behavioral factors play in the health and well-being of coal mining communities.

  17. 75 FR 39735 - Mandatory Reporting of Greenhouse Gases From Magnesium Production, Underground Coal Mines...

    Science.gov (United States)

    2010-07-12

    ... sectors of the economy, including fossil fuel suppliers, industrial gas suppliers, and direct emitters of... Part II Environmental Protection Agency 40 CFR Part 98 Mandatory Reporting of Greenhouse Gases From Magnesium Production, Underground Coal Mines, Industrial Wastewater Treatment, and Industrial...

  18. Participants' views of telephone interviews within a grounded theory study.

    Science.gov (United States)

    Ward, Kim; Gott, Merryn; Hoare, Karen

    2015-12-01

    To offer a unique contribution to the evolving debate around the use of the telephone during semistructured interview by drawing on interviewees' reflections on telephone interview during a grounded theory study. The accepted norm for qualitative interviews is to conduct them face-to-face. It is typical to consider collecting qualitative data via telephone only when face-to-face interview is not possible. During a grounded theory study, exploring users' experiences with overnight mask ventilation for sleep apnoea, the authors selected the telephone to conduct interviews. This article reports participants' views on semistructured interview by telephone. An inductive thematic analysis was conducted on data pertaining to the use of the telephone interview in a grounded theory study. The data were collected during 4 months of 2011 and 6 months in 2014. The article presents an inductive thematic analysis of sixteen participants' opinions about telephone interviewing and discusses these in relation to existing literature reporting the use of telephone interviews in grounded theory studies. Overall, participants reported a positive experience of telephone interviewing. From each participants reports we identified four themes from the data: being 'phone savvy; concentrating on voice instead of your face; easy rapport; and not being judged or feeling inhibited. By drawing on these data, we argue that the telephone as a data collection tool in grounded theory research and other qualitative methodologies need not be relegated to second best status. Rather, researchers can consider telephone interview a valuable first choice option. © 2015 John Wiley & Sons Ltd.

  19. Telephone: The Old Technology that is Never Old

    Directory of Open Access Journals (Sweden)

    Olubunmi Philip Aborisade

    2012-09-01

    Full Text Available Telephone technology is a technology that stands the test of time. Since it was invented in 1876 by Alexander Graham Belle, it remains the technology of all time. This article reports the major finding of a recent research, how technology transforms citizen journalism business in Nigeria. According to the research, Telephone technology has over the years emerged the major tool with which ordinary citizens in Nigeria without journalism and media background or affiliation participate in the process of news gathering, reporting and distribution. Guided by the recent use of telephone around the world by ordinary citizens to report themselves during protests through different social media outlets-Facebook, Tweeter, Youtube, the article illuminates the evergreen nature of the telephone. The article therefore concluded that the telephone technology invented in 1876 has survived the test of time. Instead of being obsolete, it blends with emerging communications technology to improve on its performance.

  20. First Mining workshop of Mining and metallurgical of MERCOSUR

    International Nuclear Information System (INIS)

    1994-01-01

    In the city of Montevideo, capital of the Oriental Republic of Uruguay, at 23 days of September 1994, under the First Meeting of Mercosur Mining Metallurgical, meet representatives of the mining sector in the countries signed the Treaty of Asuncion , attended as observers, authorities of the Republic of Bolivia and Ecuador and representatives of the productive labor, legislative and research. The primary objective is to integrate the mining sectors of those countries, taking into account the specificity of the mining, given by the resource it uses, the need for high-risk investment with slow recoveries of capital and infrastructure problems, taking into account leverage and its remarkable impact on the development of regional economies.

  1. [Potential selection bias in telephone surveys: landline and mobile phones].

    Science.gov (United States)

    Garcia-Continente, Xavier; Pérez-Giménez, Anna; López, María José; Nebot, Manel

    2014-01-01

    The increasing use of mobile phones in the last decade has decreased landline telephone coverage in Spanish households. This study aimed to analyze sociodemographic characteristics and health indicators by type of telephone service (mobile phone vs. landline or landline and mobile phone). Two telephone surveys were conducted in Spanish samples (February 2010 and February 2011). Multivariate logistic regression analyses were performed to analyze differences in the main sociodemographic characteristics and health indicators according to the type of telephone service available in Spanish households. We obtained 2027 valid responses (1627 landline telephones and 400 mobile phones). Persons contacted through a mobile phone were more likely to be a foreigner, to belong to the manual social class, to have a lower educational level, and to be a smoker than those contacted through a landline telephone. The profile of the population that has only a mobile phone differs from that with a landline telephone. Therefore, telephone surveys that exclude mobile phones could show a selection bias. Copyright © 2013 SESPAS. Published by Elsevier Espana. All rights reserved.

  2. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT Department

    2009-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 8h30 and 17h30 on Saturday 9 May. Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. IT/CS/CS

  3. Nutrient and dissolved organic carbon removal from water using mining and metallurgical by-products.

    Science.gov (United States)

    Wendling, Laura A; Douglas, Grant B; Coleman, Shandel; Yuan, Zheng

    2012-05-15

    Excess nutrient input to water bodies frequently results in algal blooms and development of oxygen deficient conditions. Mining or metallurgical by-products can potentially be utilised as filtration media within water treatment systems such as constructed wetlands, permeable reactive barriers, or drain liners. These materials may offer a cost-effective solution for the removal of nutrients and dissolved organic carbon (DOC) from natural waters. This study investigated steel-making, alumina refining (red mud and red sand) and heavy mineral processing by-products, as well as the low-cost mineral-based material calcined magnesia, in laboratory column trials. Influent water and column effluents were analysed for pH and flow rate, alkalinity, nutrient species and DOC, and a range of major cations and anions. In general, by-products with high Ca or Mg, and to a lesser extent those with high Fe content, were well-suited to nutrient and DOC removal from water. Of the individual materials examined, the heavy mineral processing residue neutralised used acid (NUA) exhibited the highest sorption capacity for P, and removed the greatest proportions of all N species and DOC from influent water. In general, NUA and mixtures containing NUA, particularly those with calcined magnesia or red mud/red sand were the most effective in removing nutrients and DOC from influent water. Post-treatment effluents from columns containing NUA and NUA/steel-making by-product, NUA/red sand and NUA/calcined magnesia mixtures exhibited large reductions in DOC, P and N concentrations and exhibited a shift in nutrient ratios away from potential N- and Si-limitation and towards potential P-limitation. If employed as part of a large-scale water treatment scheme, use of these mining and metallurgical by-products for nutrient removal could result in reduced algal biomass and improved water quality. Identification and effective implementation of mining by-products or blends thereof in constructed wetlands

  4. Integrating geological uncertainty in long-term open pit mine production planning by ant colony optimization

    Science.gov (United States)

    Gilani, Seyed-Omid; Sattarvand, Javad

    2016-02-01

    Meeting production targets in terms of ore quantity and quality is critical for a successful mining operation. In-situ grade uncertainty causes both deviations from production targets and general financial deficits. A new stochastic optimization algorithm based on ant colony optimization (ACO) approach is developed herein to integrate geological uncertainty described through a series of the simulated ore bodies. Two different strategies were developed based on a single predefined probability value (Prob) and multiple probability values (Pro bnt) , respectively in order to improve the initial solutions that created by deterministic ACO procedure. Application at the Sungun copper mine in the northwest of Iran demonstrate the abilities of the stochastic approach to create a single schedule and control the risk of deviating from production targets over time and also increase the project value. A comparison between two strategies and traditional approach illustrates that the multiple probability strategy is able to produce better schedules, however, the single predefined probability is more practical in projects requiring of high flexibility degree.

  5. Improvement of Metroliner Telephone Channel Capacity and Modeling of Telephone Channel Demands

    Science.gov (United States)

    1972-03-01

    The channel capacity of the present Metroliner telephone system is analyzed and methods are proposed to increase that capacity without increasing the overall bandwidth. To determine the number of channels required, calculations have been carried out ...

  6. Quartzite mining waste for adhesive mortar production; Rejeitos de mineracao de quartzito para producao de argamassa colante

    Energy Technology Data Exchange (ETDEWEB)

    Dias, L.S.; Mol, R.M.R.; Silva, K.D.C.; Campos, P.A.M.; Mendes, J.C.; Peixoto, R.A.F., E-mail: lumadias_mtpo@hotmail.com [Universidade Federal de Ouro Preto (UFOP), MG (Brazil). Laboratorio de Materiais de Construcao Civil; Mendes, A.J.C. [Universidade Federal de Vicosa (UFV), MG (Brazil)

    2016-07-01

    The construction sector is responsible for a high consumption of natural resources. Moreover, the mining industry generates and discard waste improperly in the environment aggravating environmental problems. In order to reduce the natural sand extraction and provide the environmentally correct disposal of mining waste, this work proposes the use of quartzite mining waste to replace natural sand for the production of adhesive mortars. The quartzite mining tailings was chemically characterized using X-ray fluorescence, and morphologically by optical microscopy. In sequence, the mortars were subjected to characterization tests in the fresh state as consistency index, slip, water retention, entrained air content, bulk density and Squeeze Flow. The results were satisfactory, indicating the viability of this material as fine aggregate in total replacement of natural aggregate, allowing the reduction of environmental impacts. (author)

  7. Large Pelagics Telephone Survey

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Large Pelagics Telephone Survey (LPTS) collects fishing effort information directly from captains holding Highly Migratory Species (HMS) permits (required by...

  8. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT Department

    2011-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 20h00 and midnight on the 21st of February in order to apply the latest software patches. Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. CS Group

  9. ENERGY STAR Certified Telephones

    Data.gov (United States)

    U.S. Environmental Protection Agency — Certified models meet all ENERGY STAR requirements as listed in the Version 3.0 ENERGY STAR Program Requirements for Telephony (cordless telephones and VoIP...

  10. Uranium mining and production of concentrates in India

    International Nuclear Information System (INIS)

    Bhasin, J.L.

    1997-01-01

    In order to meet the uranium requirements for the atomic power programme of the country, uranium deposits were explored, mined and concentrates were produced indigenously. The geology of the areas, mode of entries and the various extraction methods deployed in different mines with their constraints are described. The various equipments used in mining and processing activities are elaborated. The flow sheets for processing the uranium ore and that of the effluent treatment plant are given in detail. The future plans of the company for undertaking the new projects to meet the demand of uranium requirement for the increasing nuclear power programme are given. (author). 18 figs

  11. Telephone-administered cognitive-behavioral therapy for clients with depressive symptoms in an employee assistance program: a pilot study.

    Science.gov (United States)

    Lam, Raymond W; Lutz, Kevin; Preece, Melady; Cayley, Paula M; Bowen Walker, Anne

    2011-02-01

    To assess the clinical and work productivity effects of a brief intervention using telephone-administered cognitive-behavioral therapy (CBT) for clients with depressive symptoms attending an employee assistance program (EAP). Self-referred clients attending the PPC Canada EAP with clinically relevant depressive symptoms at initial assessment were offered an 8-session telephone-administered CBT program. Outcomes before and after intervention were assessed with the 9-item Personal Health Questionnaire (PHQ-9), Global Assessment of Functioning (GAF), and clinician ratings of work absence and performance impairment. Fifty clients were referred to the pilot program; 39 participated and 31 completed the telephone CBT program. Among program participants, there was significant improvement in PHQ-9 and GAF scores. There was also a significant reduction in performance impairment but not work absence. Anecdotal reports indicated high satisfaction ratings among participants. The results of this pilot study, although limited by the absence of a comparison or control group, suggest that a brief telephone-administered CBT program can improve depressive symptomatology, work productivity, and general function in depressed clients attending an EAP. Further controlled studies are needed to confirm these preliminary findings.

  12. Mining technology and policy issues 1983

    International Nuclear Information System (INIS)

    Anon.

    1983-01-01

    This book presents conference papers on advances in mineral processing, coal mining, communications for mining executives, environmental laws and regulations, exploration philosophy, exploration technology, government controls and the environment, management, mine finance, minerals availability, mine safety, occupational health, open pit mining, the precious metals outlook, public lands, system improvements in processing ores, and underground mining. Topics considered include coal pipelines and saline water, an incentive program for coal mines, sandwich belt high-angle conveyors, the development of a mining company, regulations for radionuclides, contracts for western coal production for Pacific Rim exports, and the control of radon daughters in underground mines

  13. Waste products of oilsands mine inhibit sex steroids in exposed fish

    International Nuclear Information System (INIS)

    Lister, A.; Van Der Kraak, G.J.; Nero, V.; Farwell, A.J.; Dixon, D.G.

    2002-01-01

    Mature fine tailings (MFT) and tailing pond water (TPW) are two of the wastes generated by oil sand mining operations at Syncrude Canada Ltd. in northern Alberta. A study was conducted to determine the impact of these wastes on reproductive steroid production in sexually mature goldfish. MFT is a toxic aqueous suspension consisting of organic acids, bitumen and metals. TPW is a saline solution consisting of both organic and inorganic contaminants. Goldfish were examined for 19 days in 3 of Syncrude's specially designed experimental ponds which were lined with or without MFT and capped with or without TPW. The study showed that plasma levels of testosterone and 17 β-estradiol in male and female fish in ponds with MFT but no TPW and ponds with both MFT and TPW were much lower compared to fish in a control pond with neither MFT nor TPW. The study also involved in vitro testis and ovarian incubations on the fish to determine potential differences in basal steroid production levels and how they react to gonadotropin. Results showed that gonadal tissues of fish from all ponds behaved similarly to the gonadotropin, thereby suggesting that under normal conditions, the oilsands wastes do not affect the ability of gonads to produce steroids. Compared to the control pond, both male and female fish from the pond with both MFT and TPW had significantly lower basal levels of testosterone, suggesting that the steroid inhibition could be caused at a site within the gonad. It was concluded that waste products of oilsands mining disrupt the reproductive endocrine system in goldfish

  14. Waste products of oilsands mine inhibit sex steroids in exposed fish

    Energy Technology Data Exchange (ETDEWEB)

    Lister, A.; Van Der Kraak, G.J. [Guelph Univ., ON (Canada); Nero, V.; Farwell, A.J.; Dixon, D.G. [Waterloo Univ., ON (Canada). Dept. of Biology

    2002-07-01

    Mature fine tailings (MFT) and tailing pond water (TPW) are two of the wastes generated by oil sand mining operations at Syncrude Canada Ltd. in northern Alberta. A study was conducted to determine the impact of these wastes on reproductive steroid production in sexually mature goldfish. MFT is a toxic aqueous suspension consisting of organic acids, bitumen and metals. TPW is a saline solution consisting of both organic and inorganic contaminants. Goldfish were examined for 19 days in 3 of Syncrude's specially designed experimental ponds which were lined with or without MFT and capped with or without TPW. The study showed that plasma levels of testosterone and 17 {beta}-estradiol in male and female fish in ponds with MFT but no TPW and ponds with both MFT and TPW were much lower compared to fish in a control pond with neither MFT nor TPW. The study also involved in vitro testis and ovarian incubations on the fish to determine potential differences in basal steroid production levels and how they react to gonadotropin. Results showed that gonadal tissues of fish from all ponds behaved similarly to the gonadotropin, thereby suggesting that under normal conditions, the oilsands wastes do not affect the ability of gonads to produce steroids. Compared to the control pond, both male and female fish from the pond with both MFT and TPW had significantly lower basal levels of testosterone, suggesting that the steroid inhibition could be caused at a site within the gonad. It was concluded that waste products of oilsands mining disrupt the reproductive endocrine system in goldfish.

  15. Maintenance of the CERN telephone exchanges

    CERN Multimedia

    IT Department

    2009-01-01

    Maintenance work will be carried out on the CERN telephone exchanges between 20h00 and midnight on the 29th of July in order to apply the latest software patches. Fixed-line telephone and audio-conference services may be disrupted during this intervention. Nevertheless, the CCC and the fire brigade will be reachable at any time. Mobile telephony services (GSM) will not be affected by the maintenance work. IT/CS/CS

  16. The telephone in family practice | Furman | South African Medical ...

    African Journals Online (AJOL)

    In a time-and-motion study in family practice it was found that 35,8% of all patient contact was per telephone. The study further revealed that 12,3% of total practice time was spent on the telephone, stressing its importance as a useful tool. in family practice. The study supports others which suggest that 'telephone medicine' ...

  17. Solution of problems, emerging with the transition to thin seams mining on underground mines

    International Nuclear Information System (INIS)

    Malkin, A.S.; Podshivalov, V.E.; Zhdamirov, V.M.; Kostarev, A.P.; Kulakov, A.N.; Savchenkov, V.E.

    1997-01-01

    The greatest volume of useful carbon-energetical and carbon-technological resources in the countries of the world consists of coal. Most likely, problems of the development of coal wining technology and coal consumption will interest scientists and mining engineers for a long time. Moreover, competing with the petroleum and gas industries becomes increasingly difficult. Considerable increases in coal production in countries with warm climates, and favourable mining and geological conditions also damages the international market for the coal industries of Russia (and Australia, India, and Vietnam). In a situation of critical deficits in both financial and material means in Russia, it is necessary to change the structure of the means of production and investment policies for the development of coal mining at every individual mine. 1 fig

  18. DATA MINING METHODOLOGY FOR DETERMINING THE OPTIMAL MODEL OF COST PREDICTION IN SHIP INTERIM PRODUCT ASSEMBLY

    Directory of Open Access Journals (Sweden)

    Damir Kolich

    2016-03-01

    Full Text Available In order to accurately predict costs of the thousands of interim products that are assembled in shipyards, it is necessary to use skilled engineers to develop detailed Gantt charts for each interim product separately which takes many hours. It is helpful to develop a prediction tool to estimate the cost of interim products accurately and quickly without the need for skilled engineers. This will drive down shipyard costs and improve competitiveness. Data mining is used extensively for developing prediction models in other industries. Since ships consist of thousands of interim products, it is logical to develop a data mining methodology for a shipyard or any other manufacturing industry where interim products are produced. The methodology involves analysis of existing interim products and data collection. Pre-processing and principal component analysis is done to make the data “user-friendly” for later prediction processing and the development of both accurate and robust models. The support vector machine is demonstrated as the better model when there are a lower number of tuples. However as the number of tuples is increased to over 10000, then the artificial neural network model is recommended.

  19. 30 CFR 282.24 - Mining Plan.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false Mining Plan. 282.24 Section 282.24 Mineral... § 282.24 Mining Plan. All OCS mineral development and production activities shall be conducted in accordance with a Mining Plan submitted by the lessee and approved by the Director. A Mining Plan shall...

  20. Standard values of quality and ore mining costs in management of multi-plant mining company

    Energy Technology Data Exchange (ETDEWEB)

    Kudelko, Jan [KGHM CUPRUM Research and Development Center, Wroclaw (Poland); Wirth, Herbert [KGHM Polska Miedz S.A., Lubin (Poland)

    2010-03-15

    Profitability of copper deposit mining depends on three basic variables, electrolytic copper price, manufacturing and selling costs of copper and company property involved in production process. If the company property is adjusted to its tasks then the mining profiability depends on costs of copper mining and selling, because the price is the external variable defined by the market. We can shape the costs in two (complementary) ways, traditionally, reducing the labor, material and power consumption, and by adjusting the quality of mined ore (copper content) to the level required by the current copper prices. Required quality of copper ore in the whole company we determine according to the accepted profitability criteria and then we determine quality standard for individual mines. Algorithms determining the ore quality standard resulting from current market price of copper are presented in the paper. Calculation models for the mined ore quality standards, unit mining costs per one ton of copper, electrolytic copper production and ore output are given. Standards were established for one variable assuming that the other variables are determined in this calculation. Innovative solution, presented in the paper, is the method of decomposition of the company controllable variables into the tasks for individual mines providing reaching the targets to the whole technological circuit. Using the models, having relatively few data, it will be possible to calculate quickly the values which are interesting for managers such as for example the prognosis of rate of return (economic or operational), required copper content in the mined ore for the whole company and individual mines at given rate of return or boundary level of copper content in comparison with cost and production level. Examples of calculation are provided. (orig.)

  1. The mines of Jackymov

    International Nuclear Information System (INIS)

    Ramsey, L.J.

    1985-01-01

    The history of the mines in the vicinity of Jackymov, a small town in Central Europe is given. These mines have been worked for several hundred years and from them has been brought forth a variety of products including silver, uranium and radium, the latter being isolated from Jackymov pitch-blende and identified by Marie Curie. The health effects of the miners mining radioactive ores are briefly discussed. The development of Jackymov as a spa resort using the mine water containing radium is also described. (U.K.)

  2. Current expansion of the Elliot Lake mines

    International Nuclear Information System (INIS)

    Stenning, G.

    1982-06-01

    The Elliot Lake mines are located in northern Ontario, on the north shore of Lake Huron. Mining operations in this area started in the mid-1950's and were curtailed during the 1960's. Starting in 1973 Rio Algom's Quirke mine and Denison, the only producers remaining in the area, started to make plans to expand. Increasing production to 30,000 tpd (milled) requires the reopening of the Panel and Stanleigh Mines of the Rio Algom group and the Stanrock-CanMet area at Denison. The first phase of the expansion was preceded by extensive public hearings. Mine production increases, improvement to the facilities at the reopened mines, and the effects on community facilities are described in this paper

  3. Data Mining Mining Data: MSHA Enforcement Efforts, Underground Coal Mine Safety, and New Health Implications

    OpenAIRE

    Kniesner, Thomas J.; Leeth, John D.

    2003-01-01

    Studies of industrial safety regulations, OSHA in particular, often find little effect on worker safety. Critics of the regulatory approach argue that safety standards have little to do with industrial injuries, and defenders of the regulatory approach cite infrequent inspections and low penalties for violating safety standards. We use recently assembled data from the Mine Safety and Health Administration (MSHA) concerning underground coal mine production, safety regulatory activities, and wo...

  4. Coal Mining-Related Respiratory Diseases

    Science.gov (United States)

    ... Topics Publications and Products Programs Contact NIOSH NIOSH COAL WORKERS' HEALTH SURVEILLANCE PROGRAM Recommend on Facebook Tweet Share Compartir Coal Mining-Related Respiratory Diseases Coal mining-related respiratory ...

  5. Production of ferrous sulfate from residue from the iron mining

    International Nuclear Information System (INIS)

    Cardoso, K.A; Riella, H.G.; Abreu, E.F.; Carvalho, E.F. Urano de; Durazzo, M.

    2012-01-01

    This paper was developed from a residue obtained by processing iron ore exploited by the mining company Samarco S/A. The residue was characterized and the analyses showed that it contains about 70% of the mineral hematite (Fe 2 O 3 ) and also that some economically important products could be produced. One is the ferrous sulfate that can be used in pharmaceuticals and also that can be used in the treatment of iron deficiency anemia. The iron, in addition to is importance for the industrial production of steel and parts in general, also has great biological importance in all living beings. In order to produce ferrous sulfate from the byproduct in question, it was developed a obtaining route using metallic iron as hematite reductor and sulfuric acid to form the salt. (author)

  6. WIRELESS MINE-WIDE TELECOMMUNICATIONS TECHNOLOGY

    Energy Technology Data Exchange (ETDEWEB)

    Zvi H. Meiksin

    2004-03-01

    A comprehensive mine-wide, two-way wireless voice and data communication system for the underground mining industry was developed. The system achieves energy savings through increased productivity and greater energy efficiency in meeting safety requirements within mines. The mine-wide system is comprised of two interfaced subsystems: a through-the-earth communications system and an in-mine communications system. The mine-wide system permits two-way communication among underground personnel and between underground and surface personnel. The system was designed, built, and commercialized. Several systems are in operation in underground mines in the United States. The use of these systems has proven they result in considerable energy savings. A system for tracking the location of vehicles and people within the mine was also developed, built and tested successfully. Transtek's systems are being used by the National Institute of Occupational Safety and Health (NIOSH) in their underground mine rescue team training program. This project also resulted in a spin-off rescue team lifeline and communications system. Furthermore, the project points the way to further developments that can lead to a GPS-like system for underground mines allowing the use of autonomous machines in underground mining operations, greatly reducing the amount of energy used in these operations. Some products developed under this program are transferable to applications in fields other than mining. The rescue team system is applicable to use by first responders to natural, accidental, or terrorist-caused building collapses. The in-mine communications system can be installed in high-rise buildings providing in-building communications to security and maintenance personnel as well as to first responders.

  7. Selective extraction of metals from products of mine acidic water treatment

    International Nuclear Information System (INIS)

    Andreeva, N.N.; Romanchuk, S.A.; Voronin, N.N.; Demidov, V.D.; Pasynkova, T.A.; Manuilova, O.A.; Ivanova, N.V.

    1989-01-01

    A study was made on possibility of processing of foam products prepared during flotation purification of mine acidic waters for the purpose of selective extraction of non-ferrous (Co, Ni) and rare earth elements (REE) and their separation from the basic macrocomponent of waters-iron. Optimal conditions of selective metal extraction from foam flotation products are the following: T=333 K, pH=3.0-3.5, ratio of solid and liquid phase - 1:4-1:7, duration of sulfuric acid leaching - 30 min. Rare earth extraction under such conditions equals 87.6-93.0%. The degree of valuable component concentration equals ∼ 10. Rare earths are separated from iron by extraction methods

  8. Open Pit Mining & The Cost of Water Potential Opportunities Towards Sustainable Mining

    OpenAIRE

    Sébastien J.R. Fortin

    2015-01-01

    Mining operations require vast quantities of water to run ore processing facilities and thus have a responsibility to manage this critical resource. Operations are often located in areas of limited water supply, which may create a competitive climate for water consumption. Make-up water for mineral processing can represent a significant portion of production cost for mining companies. While necessary for mining, water in open pits is problematic for extraction activities and leads to increase...

  9. Selective coal mining of intercalated lignite deposits

    Energy Technology Data Exchange (ETDEWEB)

    Zunic, R [Kolubara-Projekt, Lazarevac (Yugoslavia)

    1991-01-01

    Describes selective coal mining in the Tamnava-Istocno Polje coal surface coal mine (Yugoslavia), designed for an annual coal production of 11.4 Mt. Until 1991, this mine exploited one thick lignite seam, without spoil intercalations, using a bucket wheel excavator-conveyor-spreader system both for coal mining and removal of overburden. In the future, several spoil intercalations of up to 1.0 m and thicker will appear with a total volume of 22 million m{sup 3}. These intercalations have to be selectively excavated in order to guarantee the calorific value of coal for the Nikola Tesla power plant. Computer calculations were carried out to determine the decrease in excavator coal production due to selective mining of spoil strata. Calculations found that the annual surface mine capacity will be lower by at most 9%, depending on thickness of spoil intercalations. The useful operation time of excavators will be reduced by 98 hours per year. The planned annual coal production will nevertheless be fulfilled. 3 refs.

  10. Riding the perfect storm facing the mining sector

    CSIR Research Space (South Africa)

    Singh, Navin

    2016-06-01

    Full Text Available across all the mining commodities continue in a downward slump, marginal mines face the ever-increasing risk of closure and thus the post-mining rehabilitation and regeneration of mine land is another critical issue that needs to be addressed now... of gold mining in South Africa •� In the case of PGMs, South Africa dominates global production. Labour costs and rising steel and electricity costs all result in production being marginal in terms of operational costs •� In the iron ore industry...

  11. Field monitoring versus individual miner dosimetry of radon daughter products in mines.

    Science.gov (United States)

    Domański, T; Kluszczyński, D; Olszewski, J; Chruscielewski, W

    1989-01-01

    The paper presents the results realised simultaneously by two different and independent systems of measurement of an assessment of miners' exposure to radon daughter products which naturally occur in the air of mines. The first one, called the Air Sampling System (ASS), was based on the field monitoring of radon progeny in air, the second one, called the Individual Dosimetry System (IDS), was based on the individual dosimeters worn by miners. Experimental comparison of these two systems has been conducted for six years in eleven Polish underground metal-ore mines. This study reveals that no correlation exists between the concentration and annual miners' exposures evaluated by the ASS and IDS. The ratio ASS/IDS for mine population varies from 11.0 to 0.14 in respect of annual concentration means, and in respect to annual exposures, this ratio varies from 4.5 to 0.14. The conclusion to be drawn from six years' observation and comparison of both systems is that correct and true evaluation of miners' exposure to radon progeny can be made only by the use of the Individual Dosimetry System, since the Air Sampling System is too sensitive and too dependent on the Strategy of sampling and its radiation.

  12. Proceedings of the 15. annual national meeting of the American Society for Surface Mining and Reclamation. Mining -- Gateway to the future

    International Nuclear Information System (INIS)

    Throgmorton, D.; Nawrot, J.; Mead, J.; Galetovic, J.; Joseph, W.

    1998-01-01

    The 124 papers of these proceedings are arranged under the following topical sections: Minerals education; Hydrology--Characterization and monitoring; Tailings--Reclamation; Reforestation; Mine drainage--Biogeochemical processes; Mine drainage--Treatment, general; Mine drainage--Passive treatment, wetlands; Mine drainage--Prediction and monitoring; Acid soils--Reclamation practices; Wildlife and fisheries habitat; Subsidence--Engineering practices and environmental effects; OSM acid forming materials mini workshops; RUSLE--Erosion prediction techniques on mined construction and reclaimed lands; IDNR wetlands technology transfer program; Mine planning and postmining land use; Vegetation establishment--Principles and practices; Vegetation establishment--Warm season grasses; Coal combustion by-products--General; Coal combustion by-products--Mine drainage treatment; and Prime farmland reclamation and mine soils management. Papers within scope have been processed separately for inclusion on the data base

  13. A Sandia telephone database system

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, S.D.; Tolendino, L.F.

    1991-08-01

    Sandia National Laboratories, Albuquerque, may soon have more responsibility for the operation of its own telephone system. The processes that constitute providing telephone service can all be improved through the use of a central data information system. We studied these processes, determined the requirements for a database system, then designed the first stages of a system that meets our needs for work order handling, trouble reporting, and ISDN hardware assignments. The design was based on an extensive set of applications that have been used for five years to manage the Sandia secure data network. The system utilizes an Ingres database management system and is programmed using the Application-By-Forms tools.

  14. Hybrid disassembly system for cellular telephone end-of-life treatment

    Energy Technology Data Exchange (ETDEWEB)

    Kniebel, M.; Basdere, B.; Seliger, G. [Technical Univ. Berlin, Inst. for Machine Tools and Factory Management, Dept. of Assembly Technology and Factory Management, Berlin (Germany)

    2004-07-01

    Concern over the negative environmental impacts associated with the production, use, and end-of-life (EOL) of cellular telephones is particularly high due to large production volumes and characteristically short time scales of technological and stylistic obsolescence. Landfilled or incinerated cellular telephones create the potential for release of toxic substances. The European legislation has passed the directive on Waste of Electrical and Electronic Equipment (WEEE) to regulate their collection and appropriate end-of-life treatment. Manufacturers must conduct material recycling or remanufacturing processes to recover resources. While recovery rates can hardly be met economically by material recycling, remanufacturing and reusing cellular phones is developing into a reasonable alternative. Both end-of-life options require disassembly processes for WEEE compliant treatment. Due to the high number of different cell phone variants and their typical design that fits components into tight enclosing spaces, cellular phone disassembly becomes a challenging task. These challenges and the expected high numbers of phones to be returned in the course of the WEEE urges for automated disassembly. A hybrid disassembly system has been developed to ensure the mass-treatment of obsolete cellular phones. It has been integrated into a prototypical remanufacturing factory for cellular phones that has been planned based on market data. (orig.)

  15. Equipment size effects on open pit mining performance

    Energy Technology Data Exchange (ETDEWEB)

    A. Bozorgebrahimi; R.A. Hall; M.A. Morin [University of British Columbia, Vancouver, BC (Canada). Mining Engineering Department

    2005-03-01

    This paper discusses the exploitation of economies of scale in open pit mining through the use of increasingly larger equipment. It presents a method adopted to evaluate the impact of increased scale on operational performance factors. The work identifies equipment size sensitive variables (ESSVs) in the mine design process that affect the performance of the production process. Data from a set of case studies show that the ESSV influence extends beyond mine production to encompass milling performance, environmental footprint and community impacts. Some ESSVs (such as reliability, tyre costs and productivity) are shown to be related to the current state of equipment technology and their effects are therefore comparable for different mines. Other ESSVs relate to the mine and deposit characteristics; their effects therefore vary from mine to mine. A detailed analytical approach, developed to model the impact of ESSVs, suggests that for truck/shovel operations, the industry may be approaching a situation of diseconomies of scale.

  16. Telephone versus face-to-face interviewing for household drug use surveys.

    Science.gov (United States)

    Aquilino, W S

    1992-01-01

    This research investigated the use of telephone versus face-to-face interviewing to gather data on the use of tobacco, alcohol, and illicit drugs. Telephone and personal drug use surveys of the 18-34 year-old household population were conducted in the state of New Jersey in 1986-1987. Survey modes were compared in terms of unit and item nonresponse rates, sample coverage, and levels of self-reported drug use. Results showed that the telephone survey achieved response rates lower than the personal survey, but comparable to telephone surveys of less threatening topics. Item nonresponse to sensitive drug questions was lower by phone than with the self-administered answer sheets in the personal mode. The exclusion of households without telephones in the telephone survey is a potential source of bias, and may lead to underestimation of alcohol and drug use for minority populations. After controlling for telephone status, the telephone survey furnished significantly lower drug use estimates on several indicators than the personal survey, with the largest mode differences found for Blacks.

  17. Radiation in mines

    International Nuclear Information System (INIS)

    Rose, H.J.M.

    1982-01-01

    Radiation in mines is primarily associated with, but not restricted to, the exploitation of uranium bearing orebodies. The intent of this chapter is to convey some aspects of radiation control in the mining industry, the behaviour of the parent radon and its daughter products. An attempt was made to demonstrate that anything less than complete diligence by the ventilation personnel could result in rapid deterioration of the mine environment, and consequently high exposure rates. When the maximum annual exposure limit is 4,0 WLM (Working level month exposure) the ventilation official is not allowed the privilege of making an error. Ventilation planning in uranium mines is of prime importance and is very much a group involvement

  18. Telecommunications Policy Research Conference. Subsidies in Telephone Pricing Section. Papers.

    Science.gov (United States)

    Telecommunications Policy Research Conference, Inc., Washington, DC.

    Three papers consider the provision of telephone service to rural and/or low income customers. The first paper, "An Analysis of Telephone Penetration" (Alexander Belinfante), analyzes the relationship between telephone penetration (the proportion of households with phone service) and prices, household income, and other factors. This…

  19. Production and repair of metal supports as an indispensable activity of the Georgi Dimitrov mining and power combine

    Energy Technology Data Exchange (ETDEWEB)

    Mladenov, O

    1979-07-01

    Georgi Dimitrov underground mines have favoured metal supports over concrete slabs and timber since 1972 because of their well known advantages and because metal supports lend themselves to easy handling by 4-PU combines and 1PNB-2 loading machines. To eliminate bottlenecks and high costs of procurement from a central base individual mines were charged with production of their own metal supports. This resulted in some new developments, for example, in the production of supports with a 3.16 times greater capacity in the Marshall Tolbukhin and Al. Milenov mines in 1978. Hydraulic presses are generally used to produce conventional arch and ring type supports, and the Polish make PHPG-100 press is used for repairs. Decentralization also caused problems: different length timber and metal supports often necessitate additional cutting operations, a multitude of machines cause increased manual handling, and equipment is too often adapted to special requirements of individual shifts. However, costs of metal supports have dropped about 15%. Further improvement would require that the production of metal supports be centralized for the entire combine, supports be used according to their strength, and screw joinings be replaced with cotter type fastenings.

  20. Choosing a New Telephone System for Your Medical Practice.

    Science.gov (United States)

    Metherell, Brian

    2016-01-01

    E-mail may rule the world in other types of businesses, but for medical practices, the telephone remains the primary mode of communication with patients, specialists, and pharmacies. From making appointments to calling in prescriptions, telephones are essential to patient care. With technology changing very quickly and new capabilities coming into the medical practice, such as telemedicine and Skype, you need to know your options when choosing a new telephone system. The possibilities include on-site, cloud, and hybrid networked solutions. A wide variety of features and capabilities are available, from dozens of vendors. Of course, no matter what telephone solution you choose, you must meet regulatory compliance, particularly HIPAA, and Payment Card Industry Data Security Standard if you take credit cards. And it has to be affordable, reliable, and long lasting. This article explores what medical practices need to know when choosing a new business telephone system in order to find the right solutions for their businesses.

  1. Controls on bacterial and archaeal community structure and greenhouse gas production in natural, mined, and restored Canadian peatlands

    Directory of Open Access Journals (Sweden)

    Nathan eBasiliko

    2013-07-01

    Full Text Available Northern peatlands are important global C reservoirs, largely because of their slow rates of microbial C mineralization. Particularly in sites that are heavily influenced by anthropogenic disturbances, there is scant information about microbial ecology and whether or not microbial community structure influences greenhouse gas production. This work characterized communities of bacteria and archaea using terminal restriction fragment length polymorphism and sequence analysis of 16S rRNA and functional genes across eight natural, mined, or restored peatlands in two locations in eastern Canada. Correlations were explored among chemical properties of peat, bacterial and archaeal community structure, and carbon dioxide and methane production rates under oxic and anoxic conditions. Bacteria and archaea similar to those found in other peat soil environments were detected. In contrast to other reports, methanogen diversity was low in our study, with only 2 groups of known or suspected methanogens. Although mining and restoration affected substrate availability and microbial activity, these land-uses did not consistently affect bacterial or archaeal community composition. In fact, larger differences were observed between the two locations and between oxic and anoxic peat samples than between mined and restored sites, with anoxic samples characterized by less detectable bacterial diversity and stronger dominance by members of the phylum Acidobacteria. There were also no apparent strong linkages between prokaryote community structure and methane or carbon dioxide production, suggesting that different organisms exhibit functional redundancy and/or that the same taxa function at very different rates when exposed to different peat substrates. In contrast to other earlier work focusing on fungal communities across similar mined and restored peatlands, bacterial and archaeal communities appeared to be more resistant or resilient to peat substrate changes brought

  2. Cellular telephone use among primary school children in Germany

    International Nuclear Information System (INIS)

    Boehler, Eva; Schuez, Joachim

    2004-01-01

    Background: There is some concern about potential health risks of cellular telephone use to children. We assessed data on how many children own a cellular telephone and on how often they use it in a population-based sample. Methods: We carried out a cross-sectional study among children in their fourth elementary school year, with a median-age of 10 years. The study was carried out in Mainz (Germany), a city with about 200,000 inhabitants. The study base comprised all 37 primary schools in Mainz and near surroundings. Altogether, 1933 children from 34 primary schools took part in the survey (participation rate of 87.8%). Results: Roughly a third of all children (n = 671, 34.7%) reported to own a cellular telephone. Overall, 119 (6.2%) children used a cellular telephone for making calls at least once a day, 123 (6.4%) used it several times a week and 876 (45.3%) children used it only once in a while. The remaining 805 (41.6%) children had never used a cellular telephone. The probability of owning a cellular telephone among children was associated with older age, being male, having no siblings, giving full particulars to height and weight, more time spent watching TV and playing computer games, being picked up by their parents from school by car (instead of walking or cycling) and going to bed late. The proportion of cellular telephone owners was somewhat higher in classes with more children from socially disadvantaged families. Conclusions: Our study shows that both ownership of a cellular telephone as well as the regular use of it are already quite frequent among children in the fourth grade of primary school. With regard to potential long-term effects, we recommend follow-up studies with children

  3. Intervention among Suicidal Men: Future Directions for Telephone Crisis Support Research.

    Science.gov (United States)

    Hunt, Tara; Wilson, Coralie J; Woodward, Alan; Caputi, Peter; Wilson, Ian

    2018-01-01

    Telephone crisis support is a confidential, accessible, and immediate service that is uniquely set up to reduce male suicide deaths through crisis intervention. However, research focusing on telephone crisis support with suicidal men is currently limited. To highlight the need to address service delivery for men experiencing suicidal crisis, this perspective article identifies key challenges facing current telephone crisis support research and proposes that understanding of the role of telephone crisis helplines in supporting suicidal men may be strengthened by careful examination of the context of telephone crisis support, together with the impact this has on help-provision for male suicidal callers. In particular, the impact of the time- and information-poor context of telephone crisis support on crisis-line staff's identification of, and response to, male callers with thoughts of suicide is examined. Future directions for research in the provision of telephone crisis support for suicidal men are discussed.

  4. 24 CFR 3285.906 - Telephone and cable TV.

    Science.gov (United States)

    2010-04-01

    ... URBAN DEVELOPMENT MODEL MANUFACTURED HOME INSTALLATION STANDARDS Optional Information for Manufacturer's Installation Instructions § 3285.906 Telephone and cable TV. It is recommended that the installation instructions explain that telephone and cable TV wiring should be installed in accordance with requirements of...

  5. A high-level dynamic analysis approach for studying global process plant availability and production time in the early stages of mining projects

    Directory of Open Access Journals (Sweden)

    Dennis Travagini Cremonese

    Full Text Available Abstract In the early stage of front-end studies of a Mining Project, the global availability (i.e. number of hours a plant is available for production and production (number of hours a plant is actually operated with material time of the process plant are normally assumed based on the experience of the study team. Understanding and defining the availability hours at the early stages of the project are important for the future stages of the project, as drastic changes in work hours will impact the economics of the project at that stage. An innovative high-level dynamic modeling approach has been developed to assist in the rapid evaluation of assumptions made by the study team. This model incorporates systems or equipment that are commonly used in mining projects from mine to product stockyard discharge after the processing plant. It includes subsystems that will simulate all the component handling, and major process plant systems required for a mining project. The output data provided by this high-level dynamic simulation approach will enhance the confidence level of engineering carried out during the early stage of the project. This study discusses the capabilities of the approach, and a test case compared with standard techniques used in mining project front-end studies.

  6. A mine of energy

    International Nuclear Information System (INIS)

    Fallon, M.

    1982-01-01

    In July 1978 the then Union Corporation (which is a wholly-owned Subsidiary of the larger Gencor Group) announced its intention to develop Beisa mine in the Orange Free State. They started up a medium sized uranium mine with gold as a by-product. The main idea was for the processing of uranium. The planning of the uranium recovery plant, the actual mining, and the recovery and extraction of uranium are discussed

  7. Model business intelligence system design of quality products by using data mining in R Bakery Company

    Science.gov (United States)

    Fitriana, R.; Saragih, J.; Luthfiana, N.

    2017-12-01

    R Bakery company is a company that produces bread every day. Products that produced in that company have many different types of bread. Products are made in the form of sweet bread and wheat bread which have different tastes for every types of bread. During the making process, there were defects in the products which the defective product turns into reject product. Types of defects that are produced include burnt, sodden bread and shapeless bread. To find out the information about the defects that have been produced then by applying a designed model business intelligence system to create database and data warehouse. By using model business Intelligence system, it will generate useful information such as how many defect that produced by each of the bakery products. To make it easier to obtain such information, it can be done by using data mining method which data that we get is deep explored. The method of data mining is using k-means clustering method. The results of this intelligence business model system are cluster 1 with little amount of defect, cluster 2 with medium amount of defect and cluster 3 with high amount of defect. From OLAP Cube method can be seen that the defect generated during the 7 months period of 96,744 pieces.

  8. Uranium mining and its direction of development in China

    International Nuclear Information System (INIS)

    Feng Fuxian

    1993-01-01

    The features, current situation, achievements, problems and directions of development of uranium mining in China are presented. For over 30 years, the great successes have been achieved in the mining systems and technologies, the trackless mining and solution mining, the ventilation and radiation protection. But the economic benefit is still poor in mining due to the complex geological conditions, small ore bodies and their scattered distribution with lower uranium grade, low level of mechanization in mining and lower production efficiency. So it will be the direction of development in future to accelerate the development in mining science, to improve traditional mining technologies, to construct and to transform the mines with the purpose of increasing the benefit and decreasing the costs of production

  9. Preliminary analysis of the probable causes of decreased coal mining productivity (1969 to 1976). [1950 to 1976

    Energy Technology Data Exchange (ETDEWEB)

    Walton, D.R.; Kauffman, P.W.

    1977-11-07

    The concern shown by energy leaders regarding the continuing decline in productivity is not just academic. Rather, it is viewed as a serious threat, not only to the industry but also to the national economy. Recently, a mine operator commented on the productivity decline by saying that the decline does not affect his company because it merely raises the price and then passes the price increase on to the consumer. He felt that, while the mine operator is interested in reducing costs, legislation, labor unrest, and other factors contributing to increased costs are all beyond his control. Although a great many people in the coal industry do not share these views, many do. Therefore, a study of the underlying causes of the decline in productivity is extremely important and is, in essence, truly a national issue. The observation is that as productivity declines, the cost of coal rises proportionally. Obviously the coal industry is in business to make a profit. As conditions change (e.g., more laws are passed, labor unrest increases, and worker attitudes worsen) and resultant productivity declines occur, the costs of coal extraction will increase. Undoubtedly these costs will be passed along to the consumer. The USBM, as a part of an overall effort by the government to solve energy problems, is playing an important role in the coal industry. By identifying the causes of the decline in productivity, it can better direct its efforts in reversing the trend. This can be and is being accomplished by advancing mechanization and developing new technologies in coal mining that better meet the requirements of legislation, improve safety and productivity, and are less sensitive to the impacts of labor unrest, attitudinal shifts, and motivational problems.

  10. The telephone effect: Overcoming initiation deficits in two settings.

    Science.gov (United States)

    Vickers, Kayci L; Keesler, Michael E; Williams, Kelli S; Charles, Jeremy Y; Hamilton, Roy H

    2018-04-19

    Disorders of motivation substantially impair an individual's ability to communicate with their families, therapists, and doctors. One method of overcoming initiation deficits is by utilizing the telephone effect, which is the ability for individuals with severe motivation deficits to communicate more readily when speaking on a telephone. However, little is available in the extant literature on how this effect works or how best to integrate this into patient care. This article aims to provide the first report of a proposed mechanism underlying the telephone effect and the first published procedures for eliciting this effect. This is largely a review article that also contains descriptions of clinical procedures for eliciting the telephone effect with 2 patient populations: acute inpatients following brain injury and dementia residents. A case vignette is also provided. We propose that the telephone effect is the result of an interaction between the patient and environment, and occurs because of Gibson's (1979) law of affordances. The use of this theory provides an explanation of the behaviors often observed when attempting to elicit this effect (i.e., disruption of the effect when using a cellular phone). Moreover, we argue that this can, and does, apply to social interactions as well. The telephone effect is an understudied phenomenon that provides a means of improving care for individuals with disorders of motivation. Future directions include systematic research into the telephone effect and further investigation of the mechanism underlying this effect. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

  11. AIDS and condoms in Brasilia: a telephone survey.

    Science.gov (United States)

    Chequer, P; VanOss Marín, B; Paiva, L; Hudes, E S; Piazza, T; Rodrigues, L; Hearst, N

    1997-10-01

    A telephone survey was conducted to measure AIDS knowledge, media usage and condom attitudes and behaviors among 500 adults aged 18 to 49 in Brasilia, as well as to evaluate the feasibility of the telephone survey method in a developing country. The response rate was 91.6%. Respondents had good knowledge about correct modes of HIV transmission and prevention but also believed HIV was transmitted through blood donation, public toilets, swimming pools, and mosquito bites. TV and newspapers were the most important sources of information on health matters and AIDS, though health workers were considered the most credible sources of such information. Only 19% of sexual encounters in the 4 weeks prior to the survey included condoms. Single and younger respondents and those with more positive attitudes used condoms more frequently. More work is needed to identify appropriate messages to motivate people to use condoms. Telephone surveys regarding AIDS and sexual attitudes and behaviors are feasible in Brasilia, a planned community with universal telephone coverage.

  12. Data mining, mining data : energy consumption modelling

    Energy Technology Data Exchange (ETDEWEB)

    Dessureault, S. [Arizona Univ., Tucson, AZ (United States)

    2007-09-15

    Most modern mining operations are accumulating large amounts of data on production and business processes. Data, however, provides value only if it can be translated into information that appropriate users can utilize. This paper emphasized that a new technological focus should emerge, notably how to concentrate data into information; analyze information sufficiently to become knowledge; and, act on that knowledge. Researchers at the Mining Information Systems and Operations Management (MISOM) laboratory at the University of Arizona have created a method to transform data into action. The data-to-action approach was exercised in the development of an energy consumption model (ECM), in partnership with a major US-based copper mining company, 2 software companies, and the MISOM laboratory. The approach begins by integrating several key data sources using data warehousing techniques, and increasing the existing level of integration and data cleaning. An online analytical processing (OLAP) cube was also created to investigate the data and identify a subset of several million records. Data mining algorithms were applied using the information that was isolated by the OLAP cube. The data mining results showed that traditional cost drivers of energy consumption are poor predictors. A comparison was made between traditional methods of predicting energy consumption and the prediction formed using data mining. Traditionally, in the mines for which data were available, monthly averages of tons and distance are used to predict diesel fuel consumption. However, this article showed that new information technology can be used to incorporate many more variables into the budgeting process, resulting in more accurate predictions. The ECM helped mine planners improve the prediction of energy use through more data integration, measure development, and workflow analysis. 5 refs., 11 figs.

  13. Emotion Analysis of Telephone Complaints from Customer Based on Affective Computing.

    Science.gov (United States)

    Gong, Shuangping; Dai, Yonghui; Ji, Jun; Wang, Jinzhao; Sun, Hai

    2015-01-01

    Customer complaint has been the important feedback for modern enterprises to improve their product and service quality as well as the customer's loyalty. As one of the commonly used manners in customer complaint, telephone communication carries rich emotional information of speeches, which provides valuable resources for perceiving the customer's satisfaction and studying the complaint handling skills. This paper studies the characteristics of telephone complaint speeches and proposes an analysis method based on affective computing technology, which can recognize the dynamic changes of customer emotions from the conversations between the service staff and the customer. The recognition process includes speaker recognition, emotional feature parameter extraction, and dynamic emotion recognition. Experimental results show that this method is effective and can reach high recognition rates of happy and angry states. It has been successfully applied to the operation quality and service administration in telecom and Internet service company.

  14. Emotion Analysis of Telephone Complaints from Customer Based on Affective Computing

    Directory of Open Access Journals (Sweden)

    Shuangping Gong

    2015-01-01

    Full Text Available Customer complaint has been the important feedback for modern enterprises to improve their product and service quality as well as the customer’s loyalty. As one of the commonly used manners in customer complaint, telephone communication carries rich emotional information of speeches, which provides valuable resources for perceiving the customer’s satisfaction and studying the complaint handling skills. This paper studies the characteristics of telephone complaint speeches and proposes an analysis method based on affective computing technology, which can recognize the dynamic changes of customer emotions from the conversations between the service staff and the customer. The recognition process includes speaker recognition, emotional feature parameter extraction, and dynamic emotion recognition. Experimental results show that this method is effective and can reach high recognition rates of happy and angry states. It has been successfully applied to the operation quality and service administration in telecom and Internet service company.

  15. Atmospheric particulate matter size distribution and concentration in West Virginia coal mining and non-mining areas.

    Science.gov (United States)

    Kurth, Laura M; McCawley, Michael; Hendryx, Michael; Lusk, Stephanie

    2014-07-01

    People who live in Appalachian areas where coal mining is prominent have increased health problems compared with people in non-mining areas of Appalachia. Coal mines and related mining activities result in the production of atmospheric particulate matter (PM) that is associated with human health effects. There is a gap in research regarding particle size concentration and distribution to determine respiratory dose around coal mining and non-mining areas. Mass- and number-based size distributions were determined with an Aerodynamic Particle Size and Scanning Mobility Particle Sizer to calculate lung deposition around mining and non-mining areas of West Virginia. Particle number concentrations and deposited lung dose were significantly greater around mining areas compared with non-mining areas, demonstrating elevated risks to humans. The greater dose was correlated with elevated disease rates in the West Virginia mining areas. Number concentrations in the mining areas were comparable to a previously documented urban area where number concentration was associated with respiratory and cardiovascular disease.

  16. Approach to operational mine planning: Case study Tamnava West

    Directory of Open Access Journals (Sweden)

    Stevanović Dejan R.

    2014-01-01

    Full Text Available In contemporary mining industry is very difficult to achieve production targets and profit without investing effort in detailed excavation planning. It is especially true for deposits with complex geological structure and production technology, as is the case for many coal mines in Serbia. The majority of coal production is used for generation of electricity in power plant. This fact is the main reason why production objectives of coal mine and power plant are strongly connected. Due to the fluctuation of the coal quality, operational mine planning (as a part of coal homogenization process, is of critical importance for managing successful coal quality control and meeting criteria of power plant. This paper investigates advantage of proper operational planning on coal quality control process and overall production performance. For better understanding case study is conducted on open pit Tamnava West field. Successful operational mine planning is almost impossible without use of modern software packages. For that reason in presented case study operational mine planning is done with Minex software.

  17. On 3D Geo-visualization of a Mine Surface Plant and Mine Roadway

    Institute of Scientific and Technical Information of China (English)

    WANG Yunjia; FU Yongming; FU Erjiang

    2007-01-01

    Constructing the 3D virtual scene of a coal mine is the objective requirement for modernizing and processing information on coal mining production. It is also the key technology to establish a "digital mine". By exploring current worldwide research, software and hardware tools and application demands, combined with the case study site (the Dazhuang mine of Pingdingshan coal group), an approach for 3D geo-visualization of a mine surface plant and mine roadway is deeply discussed. In this study, the rapid modeling method for a large range virtual scene based on Arc/Info and SiteBuilder3D is studied, and automatic generation of a 3D scene from a 2D scene is realized. Such an automatic method which can convert mine roadway systems from 2D to 3D is realized for the Dazhuang mine. Some relevant application questions are studied, including attribute query, coordinate query, distance measure, collision detection and the dynamic interaction between 2D and 3D virtual scenes in the virtual scene of a mine surface plant and mine roadway. A prototype system is designed and developed.

  18. Highly-productive mechanization systems for coal mining in the Polish coal industry

    Energy Technology Data Exchange (ETDEWEB)

    Sikora, W

    1985-01-01

    Effects of mechanization on underground coal mining in Poland from 1960 to 1980 and mining equipment used in Poland is reviewed. In 1983 black coal output increased to 191.1 Mt. There were 765 working faces, 442 of which with powered supports. Six hundred thirty-four shearer loaders were in use. About 82.7% of coal output fell on faces mined by sets of mining equipment (shearer loaders, powered supports and chain conveyors). The average coal output per working face amounted to 889 t/d. About 50% of mine roadways was driven by heading machines (346 heading machines were in use). The average coal output per face mined by a set of mining equipment amounted to 1248 t/d. About 86% of shearer loaders fell on double drum shearer loaders. Types of mining equipment used in underground mining are reviewed: powered supports (Pioma, Fazos, Glinik and the SOW), shearer loaders (drum shearer loaders and double-drum shearer loaders with chain haulage and chainless haulage systems for unidirectional and bi-directional mining), chain conveyors (Samson, Rybnik). Statistical data on working faces with various sets of equipment are given. 3 references.

  19. THE EFFECTS OF MOBILE TELEPHONING ON DRIVING PERFORMANCE

    NARCIS (Netherlands)

    BROOKHUIS, KA; DEVRIES, G; DEWAARD, D

    The effects of telephoning while driving were studied in three different traffic conditions, i.e. in light traffic on a quiet motorway, in heavy traffic on a four-lane ring-road, and in city traffic. Twelve subjects, unfamiliar with mobile telephones, drove an instrumented vehicle for one hour each

  20. The US uranium mining industry: 1980 and today

    International Nuclear Information System (INIS)

    Stover, D.E.

    1991-01-01

    In 1980, 16 800 tonnes of uranium were produced in the United States, making it the largest producing nation with about 40% of Western World (WOCA) production. By 1990, US production had fallen to approximately 3500 tonnes U, representing only about 10% of WOCA production. Clearly the US uranium mining industry was strongly altered by the events of the intervening years. Widespread focus on declining prices overshadowed a second important set of events. Namely, the rapidly changing regulatory and environmental atmosphere in the United States which continues adversely to affect conventional uranium mining. As a result of these events, the size and structure of the US uranium mining industry was irrevocably changed. Within this altered industry is a rapidly maturing technology that provides a more efficient and lower-cost means of uranium production, in-situ leaching (ISL). By exploiting the advantages of relatively low capital investments, shorter development times, reduced labour costs, and increased production flexibility of ISL mining, the US uranium mining industry will be a competitive component of the world's uranium supply for the 1990s. (author)

  1. An FMM-FFT accelerated integral equation solver for characterizing electromagnetic wave propagation in mine tunnels and galleries loaded with conductors

    KAUST Repository

    Yücel, Abdulkadir C.

    2014-07-01

    Reliable wireless communication and tracking systems in underground mines are of paramount importance to increase miners\\' productivity while monitoring the environmental conditions and increasing the effectiveness of rescue operations. Key to the design and optimization of such systems are electromagnetic (EM) simulation tools capable of analyzing wave propagation in electromagnetically large mine tunnels and galleries loaded with conducting cables (power, telephone) and mining equipment (trolleys, rails, carts), and potentially partially obstructed by debris from a cave-in. Current tools for simulating EM propagation in mine environments leverage (multi-) modal decompositions (Emslie et. al., IEEE Trans. Antennas Propag., 23, 192-205, 1975; Sun and Akyildiz, IEEE Trans. Commun., 58, 1758-1768, 2010), ray-tracing techniques (Zhang, IEEE Tran. Vehic. Tech., 5, 1308-1314, 2003), or full wave methods. Modal approaches and ray-tracing techniques cannot accurately account for the presence of conductors, intricate details of transmitters/receivers, wall roughness, or unstructured debris from a cave-in. Classical full-wave methods do not suffer from such restrictions. However, they require prohibitively large computational resources when applied to the analysis of electromagnetically large tunnels loaded with conductors. Recently, an efficient hybrid method of moment and transmission line solver has been developed to analyze the EM wave propagation inside tunnels loaded with conductors (Brocker et. al., in Proc IEEE AP-S Symp, pp.1,2, 2012). However, the applicability of the solver is limited to the characterization of EM wave propagation at medium frequency band.

  2. Mine rent and the new economic system

    Energy Technology Data Exchange (ETDEWEB)

    Cadan, K. (Federalni Ministerstvo Paliv a Energetiky, Prague (Czechoslovakia))

    1989-09-01

    Reviews historical concept of ground rents with reference to works of Adam Smith and David Ricardo and to 19th century capitalism and Marxism-Leninism. Asks whether mine rents can exist under a socialist system and examines theoretical basis for mine rents, which includes socio-economic aspects, geological conditions, proximity to markets and environmental considerations. Compares mine rents with agricultural land rents and analyzes value of end product (coal) and effect of pricing method on it. Explains pricing system in Czechoslovakia, which involves 3 groupings: coking coal, coke and energy coal (including briquets), the price of each of which is set according to average costs and geological conditions. Surplus revenue (or positive mine rent) only arises therefore at mines where the production costs are lower than fixed trade prices. Discusses in general terms application of new economic system (perestroika) to concept of mine rent and assessment of mine profitability and concludes that method of pricing solid fuels will play a decisive role. 4 refs.

  3. Mining in Austria in 1992

    International Nuclear Information System (INIS)

    Moser, P.

    1994-01-01

    The mineral production of Austria, in 1992 - as far as under the supervision of the Austrian Mine Inspectorate, run up to about 50 million t of solid minerals, 1.2 million t of oil and 1.4 billion m 3 of natural gas. 88% of the solid minerals comprised industrial minerals, 4% metals, 4% salt and 4% coal. The solid minerals were produced by 352 open pits and 15 underground mines. 3 of the operations worked both on surface and underground and one mine is a well field operation. In total around 8000 people were employed in the field of mining and mineral processing. The minerals produced represent a value of about 15 billion Austrian Schillings (about 1.25 billion US $), the major part being the industrial minerals sector with a share of 7 billion Austrian Schillings and oil and gas with around 4 billion Austrian Schillings. The industrial minerals sector does not play only in Austrian an important role, but contributes also remarkably to the world production. This comprises mainly magnesite, talc, kaolin and graphite where Austria produces more than 1% of the world production. Summarizing, it can be said that the future of the Austrian mining sector is quite prosperous, perhaps better than in some other traditional mining countries in Europe, where the change from the coal and base metals sector towards the industrial sector has not come so far. (orig.) [de

  4. Australian mining yearbook 79/80

    Energy Technology Data Exchange (ETDEWEB)

    Barret, P [ed.

    1980-01-01

    The present state of affairs in mining the following metals and minerals is described: aluminium, coal, diamonds, iron ore, lead and zinc, mineral sands, oil and gas, oil shale, tin, and uranium. Equipment, finance, mining methods, resources, safety, and taxation are all discussed. Then there is a directory of mining companies and directors, a Who's Who, and a buyers guide consisting of a product index and a suppliers index. Lists of consultants, drilling contractors, ore buyers, mining industry and research organisations and government departments are also given.

  5. Can smartphones enhance telephone-based cognitive assessment (TBCA)?

    Science.gov (United States)

    Kwan, Rick Yiu-Cho; Lai, Claudia Kam-Yuk

    2013-12-12

    TBCA has emerged to solve the limitations of administering cognitive assessments face-to-face. The recent development of telephones and knowledge advances in the area of cognitive impairment may affect the development of TBCA. The purpose of this paper is to discuss how smartphones can be used to enhance the applicability of TBCA, which has previously been administered by conventional telephone. This paper will first review, describe and critique the existing TBCA instruments. It will then discuss the recent developments in tele-technology, the popularity of tele-technology among the elderly, potential benefits and challenges in using smartphones for cognitive assessment, and possible future developments in this technology. In the systematic review, eighteen TBCA instruments were identified. They were found to be valid in differentiating between people with and without dementia. TBCA was previously found to be launched on a conventional telephone platform. The advances in understanding of cognitive impairment may demand that telephones be equipped with more advanced features. Recently, the development and penetration of smartphones among the elderly has been rapid. This may allow the smartphone to enhance its TBCA applicability by overcoming the limitations of the conventional telephone, rendering the TBCA more efficient in addressing the increasing demand and complexity of cognitive assessments in the future. However, more research and technology developments are needed before smartphones can become a valid platform for TBCA.

  6. Can Smartphones Enhance Telephone-Based Cognitive Assessment (TBCA?

    Directory of Open Access Journals (Sweden)

    Rick Yiu-Cho Kwan

    2013-12-01

    Full Text Available TBCA has emerged to solve the limitations of administering cognitive assessments face-to-face. The recent development of telephones and knowledge advances in the area of cognitive impairment may affect the development of TBCA. The purpose of this paper is to discuss how smartphones can be used to enhance the applicability of TBCA, which has previously been administered by conventional telephone. This paper will first review, describe and critique the existing TBCA instruments. It will then discuss the recent developments in tele-technology, the popularity of tele-technology among the elderly, potential benefits and challenges in using smartphones for cognitive assessment, and possible future developments in this technology. In the systematic review, eighteen TBCA instruments were identified. They were found to be valid in differentiating between people with and without dementia. TBCA was previously found to be launched on a conventional telephone platform. The advances in understanding of cognitive impairment may demand that telephones be equipped with more advanced features. Recently, the development and penetration of smartphones among the elderly has been rapid. This may allow the smartphone to enhance its TBCA applicability by overcoming the limitations of the conventional telephone, rendering the TBCA more efficient in addressing the increasing demand and complexity of cognitive assessments in the future. However, more research and technology developments are needed before smartphones can become a valid platform for TBCA.

  7. Telephone Crisis Support Workers' Psychological Distress and Impairment.

    Science.gov (United States)

    Kitchingman, Taneile A; Wilson, Coralie J; Caputi, Peter; Wilson, Ian; Woodward, Alan

    2018-01-01

    In order to respond to crises with appropriate intervention, crisis workers are required to manage their own needs as well as the needs of those they respond to. A systematic review of the literature was conducted to examine whether telephone crisis support workers experience elevated symptoms of psychological distress and are impaired by elevated symptoms. Studies were identified in April 2015 by searching three databases, conducting a gray literature search, and forward and backward citation chaining. Of 113 identified studies, seven were included in the review. Results suggest that that telephone crisis support workers experience symptoms of vicarious traumatization, stress, burnout, and psychiatric disorders, and that they may not respond optimally to callers when experiencing elevated symptoms of distress. However, definitive conclusions cannot be drawn due to the paucity and methodological limitations of available data. While the most comprehensive search strategy possible was adopted, resource constraints meant that conference abstracts were not searched and authors were not contacted for additional unpublished information. There is an urgent need to identify the impact of telephone crisis support workers' role on their well-being, the determinants of worker well-being in the telephone crisis support context, and the extent to which well-being impacts their performance and caller outcomes. This will help inform strategies to optimize telephone crisis support workers' well-being and their delivery of support to callers.

  8. Analyses of radionuclides in soil, water, and agriculture products near the Urgeirica uranium mine in Portugal

    International Nuclear Information System (INIS)

    Carvalho, F.P.; Oliveira, J.M.; Malta, M.

    2009-01-01

    Analyses of soils, irrigation waters, agriculture products (lettuce), green pasture, and cheese were performed in samples collected in the area of the old Urgeirica uranium mine and milling facilities, Centre-North of Portugal, in order to assess the transfer of uranium series radionuclides in the environment and to man. Soils close to milling tailings display an enhancement of radioactivity. In the drainage basin of the stream Ribeira da Pantanha, receiving drainage from the tailings piles and discharges from the acid mine water treatment plant, there was enhancement of uranium series radionuclide concentrations in water and suspended matter. Agriculture products from kitchen gardens irrigated with water from the Ribeira da Pantanha show an increase of radioactivity, mainly due to uranium isotopes. Agriculture products from other kitchen gardens in this area, irrigated with groundwater, as well pasture and cheese produced locally from sheep milk did not show enhanced radionuclide concentrations. In the Urgeirica area, some soils display radionuclide concentrations higher than soils in reference areas and, in agriculture products grown there, 226 Ra was the radionuclide more concentrated by vegetables. Through ingestion of these products 226 Ra may be the main contributor to the increment of radiation dose received by local population. (author)

  9. Mining and Risk of Tuberculosis in Sub-Saharan Africa

    Science.gov (United States)

    Basu, Sanjay; McKee, Martin; Lurie, Mark

    2011-01-01

    Objectives. We estimated the relationship between mining and tuberculosis (TB) among countries in sub-Saharan Africa. Methods. We used multivariate regression to estimate the contribution of mining activity to TB incidence, prevalence, and mortality, as well as rates of TB among people living with HIV, with control for economic, health system, and population confounders. Results. Mining production was associated with higher population TB incidence rates (adjusted b = 0.093; 95% confidence interval [CI] = 0.067, 0.120; with an increase of mining production of 1 SD corresponding to about 33% higher TB incidence or 760 000 more incident cases), after adjustment for economic and population controls. Similar results were observed for TB prevalence and mortality, as well as with alternative measures of mining activity. Independent of HIV, there were significant associations between mining production and TB incidence in countries with high HIV prevalence (≥ 4% antenatal HIV prevalence; HIV-adjusted B = 0.066; 95% CI = 0.050, 0.082) and between log gold mining production and TB incidence in all studied countries (HIV-adjusted B = 0.053; 95% CI = 0.032, 0.073). Conclusions. Mining is a significant determinant of countrywide variation in TB among sub-Saharan African nations. Comprehensive TB control strategies should explicitly address the role of mining activity and environments in the epidemic. PMID:20516372

  10. 26 CFR 49.4251-4 - Prepaid telephone cards.

    Science.gov (United States)

    2010-04-01

    ...; adding value. (i) After using the card described in Example 2, P arranges with A by telephone to have 30... EXCISE TAXES FACILITIES AND SERVICES EXCISE TAXES Communications § 49.4251-4 Prepaid telephone cards. (a... section provides rules for the application of the section 4251 tax to PTCs. (b) Definitions. The following...

  11. Restoring Sustainable Forests on Appalachian Mined Lands for Wood Product, Renewable Energy, Carbon Sequestration, and Other Ecosystem Services

    Energy Technology Data Exchange (ETDEWEB)

    Burger, James A

    2006-09-30

    Concentrations of CO{sub 2} in the Earth’s atmosphere have increased dramatically in the past 100 years due to deforestation, land use change, and fossil fuel combustion. These humancaused, higher levels of CO{sub 2} may enhance the atmospheric greenhouse effect and may contribute to climate change. Many reclaimed coal-surface mine areas in the eastern U.S. are not in productive use. Reforestation of these lands could provide societal benefits, including sequestration of atmospheric carbon. The goal of this project was to determine the biological and economic feasibility of restoring high-quality forests on the tens of thousands of hectares of mined land and to measure carbon sequestration and wood production benefits that would be achieved from large-scale application of forest restoration procedures. We developed a mine soil quality model that can be used to estimate the suitability of selected mined sites for carbon sequestration projects. Across the mine soil quality gradient, we tested survival and growth performance of three species assemblages under three levels of silvicultural. Hardwood species survived well in WV and VA, and survived better than the other species used in OH, while white pine had the poorest survival of all species at all sites. Survival was particularly good for the site-specific hardwoods planted at each site. Weed control plus tillage may be the optimum treatment for hardwoods and white pine, as any increased growth resulting from fertilization may not offset the decreased survival that accompanied fertilization. Grassland to forest conversion costs may be a major contributor to the lack of reforestation of previously reclaimed mine lands in the Appalachian coal-mining region. Otherwise profitable forestry opportunities may be precluded by these conversion costs, which for many combinations of factors (site class, forest type, timber prices, regeneration intensity, and interest rate) result in negative land expectation values

  12. Nurse-led telephone follow-up after total knee arthroplasty

    DEFF Research Database (Denmark)

    Szöts, Kirsten; Konradsen, Hanne; Solgaard, Søren

    2015-01-01

    AIM AND OBJECTIVES: To generate information on how telephone follow-up consultations, structured by nursing status according to the VIPS-model, functioned after total knee arthroplasty. The objectives were to unfold the content of the telephone follow-ups according to the structure for nursing...... status and to explore the patients' views of the telephone follow-ups. BACKGROUND: The length of stay in hospital following total knee arthroplasty has fallen markedly, and patients now have to be responsible for their recovery from a very early stage. After discharge, patients may experience a variety...... Telephone follow-up was valued by total knee arthroplasties patients as representing a holistic approach and providing adequate information, counselling and support after discharge to home. Three categories were identified with regard to the patients' views: 'A means for reflection and provision of adequate...

  13. Short rotation woody biomass production as option for the restoration of post-mining areas in lower Lusatia, Germany

    Energy Technology Data Exchange (ETDEWEB)

    Bohm, C.; Quinkenstein, A.; Freese, D. [Brandenburg Univ. of Technology, Cottbus (Germany). Soil Protection and Recultivation; Huttl, R.R. [Brandenburg Univ. of Technology, Cottbus (Germany). Soil Protection and Recultivation; GFZ German Research Centre for Geosciences, Potsdam (Germany)

    2010-07-01

    Reclaimed mine sites in the Lusatian lignite-mining district in Germany are characterized by low annual precipitation and marginal soils. As such, crop yield is typically low and conventional land use systems fail in terms of reliable and efficient crop production. The production of woody biomass for bioenergy may be a promising alternative to improve soil fertility and also to enhance the economic value of these post-mining areas. Previous studies have shown that black locust (Robinia pseudoacacia L.) may be a suitable tree species for this purpose. This paper evaluated the ecological and economic benefits of producing woody biomass in short rotation coppices (SRC) and alley cropping systems (ACS) with black locust. The results showed that compared to conventional agriculture, such land use is not very profitable due to high establishment and harvesting costs and the comparatively low prices for wood energy. However, because of the improved microclimate, the crop yield in ACS is higher than in conventional agriculture. The cultivation of black locust resulted in a higher humus accumulation and in a lower harvest-related nutrient export than the cultivation of alfalfa as a typical recultivation crop in this region. It was concluded SRC with black locust is more beneficial than conventional agriculture in terms of improving soil fertility in the degraded post-mining areas of Lower Lusatia.

  14. Production Potential Of Nchanga Underground Mines Collapsed Blocks

    Directory of Open Access Journals (Sweden)

    Eugie Kabwe

    2015-08-01

    Full Text Available Abstract the main purpose of this study is to recommend modification to block caving at Nchanga ensure that it meets anticipated production levels and address the adverse ground conditions of the intensely fractured orebody. Excavations of current methods are driven close to the incompetent orebody. Determination of the appropriate method based on criteria of selection techniques together with the analysis of operating costs and safety. Reclamation of ore in the collapsed blocks entirely depended on maximizing revenue recovery of the mineral and safe working environment for equipment and personnel. On recommendation of a suitable method extent of the collapsed blocks was another aspect considered. The proposed methods of extraction were variants of block caving further shortlisted based on the extent of collapse. Economic appraisal of both the recommended and current mining methods employed included extraction recovery development reclamation costs revenue estimation and revenue raised from finished copper.

  15. Coal mine subsidence

    International Nuclear Information System (INIS)

    Darmody, R.G.; Hetzler, R.T.; Simmons, F.W.

    1992-01-01

    Longwall coal mining in southern Illinois occurs beneath some of the best agricultural land in the U.S. This region is characterized by highly productive, nearly level, and somewhat poorly drained soils. Subsidence from longwall mining causes changes in surface topography which alters surface and subsurface hydrology. These changes can adversely affect agricultural land by creating wet or ponded areas that can be deleterious to crop production. While most subsided areas show little impact from subsidence, some areas experience total crop failure. Coal companies are required by law to mitigate subsidence damage to cropland. The objective of this paper is to test the effectiveness of mitigation in restoring grain yields to their pre-mined levels. The research was conducted on sites selected to represent conventional mitigation techniques on the predominate soils in the area. Corn (Zea mays L.) and soybean [Glycine max.(L.) Merr] yields in 1988, 1989, 1990, and 1991 from mitigated areas were compared to yields from nearby undisturbed areas

  16. Restoring Forests and Associated Ecosystem Services on Appalachian Coal Surface Mines

    Science.gov (United States)

    Zipper, Carl E.; Burger, James A.; Skousen, Jeffrey G.; Angel, Patrick N.; Barton, Christopher D.; Davis, Victor; Franklin, Jennifer A.

    2011-05-01

    Surface coal mining in Appalachia has caused extensive replacement of forest with non-forested land cover, much of which is unmanaged and unproductive. Although forested ecosystems are valued by society for both marketable products and ecosystem services, forests have not been restored on most Appalachian mined lands because traditional reclamation practices, encouraged by regulatory policies, created conditions poorly suited for reforestation. Reclamation scientists have studied productive forests growing on older mine sites, established forest vegetation experimentally on recent mines, and identified mine reclamation practices that encourage forest vegetation re-establishment. Based on these findings, they developed a Forestry Reclamation Approach (FRA) that can be employed by coal mining firms to restore forest vegetation. Scientists and mine regulators, working collaboratively, have communicated the FRA to the coal industry and to regulatory enforcement personnel. Today, the FRA is used routinely by many coal mining firms, and thousands of mined hectares have been reclaimed to restore productive mine soils and planted with native forest trees. Reclamation of coal mines using the FRA is expected to restore these lands' capabilities to provide forest-based ecosystem services, such as wood production, atmospheric carbon sequestration, wildlife habitat, watershed protection, and water quality protection to a greater extent than conventional reclamation practices.

  17. Mining wastes

    International Nuclear Information System (INIS)

    Pradel, J.

    1981-01-01

    In this article mining wastes means wastes obtained during extraction and processing of uranium ores including production of uraniferous concentrates. The hazards for the population are irradiation, ingestion, dust or radon inhalation. The different wastes produced are reviewed. Management of liquid effluents, water treatment, contamined materials, gaseous wastes and tailings are examined. Environmental impact of wastes during and after exploitation is discussed. Monitoring and measurements are made to verify that ICRP recommendations are met. Studies in progress to improve mining waste management are given [fr

  18. Integrating data mining technique and AHP in market analysis to propose new product development in real estate

    Science.gov (United States)

    Yunita; Galinium, M.; Lukas

    2017-01-01

    New product development in real estate industry is a challenging process since it is related to long term concept and high cost. A newly proposed product development should meet customer need and their preferences which appropriate with customer buying power and company value. This research use data mining for profiling customer transaction and Analytic Hierarchy Process (AHP) method for product selection in new product development. This research utilizes Weka as data mining open source software to profiling data customers. The analysis correlated product preferences and profiling demography such as city, age, gender and occupation. Demography profiles gives description buying power and product preferences. The products proposed are based on customer profiles and rank of the product by AHP method. The product with the highest score will be proposed as new product development. Case studies of this research are real estate projects in Serang, Makassar, and Balikpapan. Makassar and Balikpapan are the project that already gained success and Serang is new project which new products development will be proposed to launch. Based on profiling and product preference of customer in Balikpapan, Makassar, and prospectus of Serang markets, new products development that will be proposed are house type of 120/200 m2 with price around Rp1.300.000.000 and house type of 71/120 m2 with price around Rp800.000.000. The markets of Serang and Balikpapan have similarities in profiles as urban city so the new products development will adopt the succeed story of Balikpapan project.

  19. Midwest Joint Venture high-grade uranium mining

    International Nuclear Information System (INIS)

    Fredrickson, H.K.

    1992-01-01

    Midwest Joint Venture (MJV) owns a high-grade uranium deposit in northern Saskatchewan. The deposit is located too deep below surface to be mined economically by open pit methods, and as a consequence, present plans are that it will be mined by underground methods. High-grade uranium ore of the type at MJV, encased in weak, highly altered ground and with radon-rich water inflows, has not before been mined by underground methods. The test mining phase of the project, completed in 1989, had three objectives: To evaluate radiation protection requirements associated with the handling of large quantities of radon-rich water and mining high-grade uranium ore in an underground environment; to investigate the quantity and quality of water inflows into the mine; and, to investigate ground conditions in and around the ore zone as an aid in determining the production mining method to be used. With information gained from the test mining project, a mining method for the production mine has been devised. Level plans have been drawn up, ventilation system designed, pumping arrangements made and methods of ore handling considered. All this is to be done in a manner that will be safe for those doing the work underground. Some of the mining methods planned are felt to be unique in that they are designed to cope with mining problems not known to have been encountered before. New problems underground have required new methods to handle them. Remote drilling, blasting, mucking and backfilling form the basis of the planned mining method

  20. Mine-built ponds economically clear acid mine waters

    Energy Technology Data Exchange (ETDEWEB)

    Chironis, N P

    1987-01-01

    One of the by-products of surface mining is acid mine drainage. Traditional treatment of acid drainage is the addition of a base chemical such as sodium hydroxide, soda ash or lime to neutralize the water and allow metals, such as iron and manganese, to settle out. However researchers were intrigued by the idea of using home-made wetlands containing bogs of sphagnum moss to do the job naturally and more cheaply without the heavy application of chemicals. Such plants as cattails were found to be very effective. Aspects considered are: the wetlands affinity for acid water; the aid of algae and bacteria; building a wetland; and recommendations by the Bureau of Mines for constructing wetlands including flow capacity, pH goal, minerals removal, design criteria, plant materials, growing media, plant settling, nutrients, water level and flow control.

  1. Active mines in Arizona - 1993. Directory 40

    International Nuclear Information System (INIS)

    Phillips, K.A.; Niemuth, N.J.; Bain, D.R.

    1992-01-01

    A directory of the active mines in Arizona is presented. The directory was compiled in November, 1992 from field visits and information received by the Department's technical staff. For the purpose of this directory, an active mine is defined as a mine in continuous operation, either in production or under full-time development for production. Custom milling operations that are active or available on a full-time basis are also included in the directory. It is acknowledged that there are additional mines not listed that are in an exploration, evaluation, or part-time development phase. There are others where production is on an intermittent basis that are not listed. The report is dependent on the cooperation of government agencies, private industry, and individuals who voluntarily provide information on their projects and activities. The directory is arranged alphabetically by company name. Each listing includes corporate addresses, mine name and location, operation description, and key personnel. The listing for the sand and gravel operations include name, address, and phone number

  2. TSC mobile mining and extraction technology

    Energy Technology Data Exchange (ETDEWEB)

    Lavender, W.J. [TSC Company Ltd., Calgary, AB (Canada)

    2001-11-01

    This Power-Point presentation described an innovative mining and extraction technology developed by Calgary-based TSC Company Ltd. that has provided a major breakthrough in bitumen production from mineable oil sands. The presentation described the process and key mechanical components as demonstrated on oil sands leases. It also described the step change in cost structure and profitability. Oil sands mining provide a hugh resource base with no exploration costs and no decline in production. Despite these advantages, oil sands mining faces the challenge of high capital and operating costs and materials handling. Other challenges include the variability of the ore and environmental impacts. This paper described the fundamentals of the new technology called the Tar Sand Combine (TSC), a continuous mining machine, crusher, cyclone, tailings filter and stacker all in one mobile module. Several viewgraphs were included with the presentation to depict the recovery process as successfully demonstrated at a pilot project. Patent is pending on the process and components. The advantages of the TSC are reduced materials handling, and no tailings ponds are generated since tailings remain where they are mined. The final product is clean bitumen. The specifications of a commercial TSC are: 2000 ton/stream hour mining produce 25,000 bpsd bitumen at 12 per cent ore grade; mined ore bitumen recovery is greater than 95 per cent and the availability factor is 85 per cent. It was concluded that the TSC can maximize oil sands reserves, while providing significant cost savings and environmental benefits. 2 tabs., 24 figs.

  3. Surface coal mine land reclamation using a dry flue gas desulfurization product: Short-term and long-term water responses.

    Science.gov (United States)

    Chen, Liming; Stehouwer, Richard; Tong, Xiaogang; Kost, Dave; Bigham, Jerry M; Dick, Warren A

    2015-09-01

    Abandoned coal-mined lands are a worldwide concern due to their potential negative environmental impacts, including erosion and development of acid mine drainage. A field study investigated the use of a dry flue gas desulfurization product for reclamation of abandoned coal mined land in USA. Treatments included flue gas desulfurization product at a rate of 280 Mg ha(-1) (FGD), FGD at the same rate plus 112 Mg ha(-1) yard waste compost (FGD/C), and conventional reclamation that included 20 cm of re-soil material plus 157 Mg ha(-1) of agricultural limestone (SOIL). A grass-legume sward was planted after treatment applications. Chemical properties of surface runoff and tile water (collected from a depth of 1.2m below the ground surface) were measured over both short-term (1-4 yr) and long-term (14-20 yr) periods following reclamation. The pH of surface runoff water was increased from approximately 3, and then sustained at 7 or higher by all treatments for up to 20 yr, and the pH of tile flow water was also increased and sustained above 5 for 20 yr. Compared with SOIL, concentrations of Ca, S and B in surface runoff and tile flow water were generally increased by the treatments with FGD product in both short- and long-term measurements and concentrations of the trace elements were generally not statistically increased in surface runoff and tile flow water over the 20-yr period. However, concentrations of As, Ba, Cr and Hg were occasionally elevated. These results suggest the use of FGD product for remediating acidic surface coal mined sites can provide effective, long-term reclamation. Copyright © 2015. Published by Elsevier Ltd.

  4. Mining in the G. D. R. and landscape restoration

    Energy Technology Data Exchange (ETDEWEB)

    Strzodka, K.

    1987-06-01

    The author reviews aspects of surface mining in the GDR, including production figures of 1983, surface mine drainage, land devastation and land recultivation measures. Total GDR surface mining production was 448 Mt in 1983, two thirds made up by brown coal. Brown coal seam depth and other geological features are explained. Land devastated by mining increased annually by 3,000 ha; only 50% of the total land devastated by surface mining has been given over for recultivation. Statistics on the decrease of agriculturally used land in the period from 1955 to 1984 are provided. Water drainage from surface mines increased to a total of 1,7200x10/sup 6/ m/sup 3/ in 1984, supplementing the industrial water requirement. Examples are given for recultivated landscapes after completion of surface and underground mining. (MOS).

  5. [Psychometric validation of the telephone memory test].

    Science.gov (United States)

    Ortiz, T; Fernández, A; Martínez-Castillo, E; Maestú, F; Martínez-Arias, R; López-Ibor, J J

    1999-01-01

    Several pathologies (i.e. Alzheimer's disease) that courses with memory alterations, appears in a context of impaired cognitive status and mobility. In recent years, several investigations were carried out in order to design short batteries that detect those subjects under risk of dementia. Some of this batteries were also design to be administrated over the telephone, trying to overcome the accessibility limitations of this patients. In this paper we present a battery (called Autotest de Memoria) essentially composed by episodic and semantic memory tests, administered both over the telephone and face to face. This battery was employed in the cognitive assessment of healthy controls and subjects diagnosed as probable Alzheimer's disease patients. Results show the capability of this battery in order to discriminate patients and healthy controls, a great sensibility and specificity, and a nearly absolute parallelism of telephone and face to face administrations. These data led us to claim the usefulness and practicality of our so called Memoria>.

  6. 47 CFR 42.6 - Retention of telephone toll records.

    Science.gov (United States)

    2010-10-01

    ... whether it is billing its own toll service customers for toll calls or billing customers for another... Section 42.6 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES... telephone toll records. Each carrier that offers or bills toll telephone service shall retain for a period...

  7. Brain tumour risk in relation to mobile telephone use

    DEFF Research Database (Denmark)

    Johansen, Christoffer

    2010-01-01

    The rapid increase in mobile telephone use has generated concern about possible health risks related to radiofrequency electromagnetic fields from this technology.......The rapid increase in mobile telephone use has generated concern about possible health risks related to radiofrequency electromagnetic fields from this technology....

  8. Environmental geochemistry of acid mine drainage water at Indus coal mine at Lakhra, Sindh Pakistan

    International Nuclear Information System (INIS)

    Siddique, I.; Shah, M.T.

    2000-01-01

    The annual coal production of Pakistan is about 3,637, 825 tones which is about 6% of the country's energy resources, out of this 1,241, 965 tones of coal was produced/ mined from the Lakhra coal field, District Dadu, Sindh which after the Thar coal field is the second largest coal field of Pakistan. At this coal field more than 58 mining companies are engaged in exploring the hidden wealth of the country. The problem of acid mine drainage, is caused by the passage or seepage of water, through mines where iron disulfides, usually pyrites, are exposed to the oxidizing action of water, air and bacteria, is the main problem faced by the mining companies. The geochemical analysis of acid mine drainage water collected from Indus coal mine no. 6 shows that beside its higher pH, total Dissolved Solids and Sulfates, it also posses higher amount of heavy metals like Cd, Cu, Pb, Co, Ni and Fe. This acid mine drainage water not only damages the mine structures but is also harmful to soil and ecology. (author)

  9. Golden prospects for uranium mine

    International Nuclear Information System (INIS)

    Anon.

    1980-01-01

    Beisa Mines Ltd, a wholly-owned subsidiary of Union Corporation, looks a born winner. Although only due for completion in 1982 it can already boast several 'firsts' in the mining industry. It is, of course, the first mine in South Africa to be developed as a primary producer of uranium with gold as a by-product. Its No. 1 Ventilation Shaft is also the smallest diameter shaft in SA to use a rocker-arm shovel loader for rock removal. Moreover, Beisa will be the first mine to use the revolutionary carbon-in-pulp process on a large scale

  10. Interactive water monitoring system accessible by cordless telephone

    Science.gov (United States)

    Volpicelli, Richard; Andeweg, Pierre; Hagar, William G.

    1985-12-01

    A battery-operated, microcomputer-controlled monitoring device linked with a cordless telephone has been developed for remote measurements. This environmental sensor is self-contained and collects and processes data according to the information sent to its on-board computer system. An RCA model 1805 microprocessor forms the basic controller with a program encoded in memory for data acquisition and analysis. Signals from analog sensing devices used to monitor the environment are converted into digital signals and stored in random access memory of the microcomputer. This remote sensing system is linked to the laboratory by means of a cordless telephone whose base unit is connected to regular telephone lines. This offshore sensing system is simply accessed by a phone call originating from a computer terminal in the laboratory. Data acquisition is initiated upon request: Information continues to be processed and stored until the computer is reprogrammed by another phone call request. Information obtained may be recalled by a phone call after the desired environmental measurements are finished or while they are in progress. Data sampling parameters may be reset at any time, including in the middle of a measurement cycle. The range of the system is limited only by existing telephone grid systems and by the transmission characteristics of the cordless phone used as a communications link. This use of a cordless telephone, coupled with the on-board computer system, may be applied to other field studies requiring data transfer between an on-site analytical system and the laboratory.

  11. Implementing a computer-assisted telephone interview (CATI) system to increase colorectal cancer screening: a process evaluation.

    Science.gov (United States)

    White, Mary Jo; Stark, Jennifer R; Luckmann, Roger; Rosal, Milagros C; Clemow, Lynn; Costanza, Mary E

    2006-06-01

    Computer-assisted telephone interviewing (CATI) systems used by telephone counselors (TCs) may be efficient mechanisms to counsel patients on cancer and recommended preventive screening tests in order to extend a primary care provider's reach to his/her patients. The implementation process of such a system for promoting colorectal (CRC) cancer screening using a computer-assisted telephone interview (CATI) system is reported in this paper. The process evaluation assessed three components of the intervention: message production, program implementation and audience reception. Of 1181 potentially eligible patients, 1025 (87%) patients were reached by the TCs and 725 of those patients (71%) were eligible to receive counseling. Five hundred eighty-two (80%) patients agreed to counseling. It is feasible to design and use CATI systems for prevention counseling of patients in primary care practices. CATI systems have the potential of being used as a referral service by primary care providers and health care organizations for patient education.

  12. Evaluating Water Management Practice for Sustainable Mining

    OpenAIRE

    Xiangfeng Zhang; Lei Gao; Damian Barrett; Yun Chen

    2014-01-01

    To move towards sustainable development, the mining industry needs to identify better mine water management practices for reducing raw water use, increasing water use efficiency, and eliminating environmental impacts in a precondition of securing mining production. However, the selection of optimal mine water management practices is technically challenging due to the lack of scientific tools to comprehensively evaluate management options against a set of conflicting criteria. This work has pr...

  13. A Telephone Communication Skills Exercise for Veterinary Students: Experiences, Challenges, and Opportunities.

    Science.gov (United States)

    Grevemeyer, Bernard; Betance, Larry; Artemiou, Elpida

    2016-01-01

    Evidence from human medicine shows a rise in telephone communication in support of after-hours services and in providing medical advice, follow-up information, etc. While specific training programs are continuously being developed for human medical education, limited publications are available on training veterinary students in telephone communication. Presented is our method of introducing a telephone communication skills exercise to third-year veterinary students. The exercise progressed over three phases and currently follows the principles of the Calgary-Cambridge Guide. Challenges and improvements on implementing a telephone communication exercise are discussed. Within veterinary communication curricula, attention should be given to the specific communication skills required for successful telephone consultations. In the absence of visual nonverbal cues and prompts during a telephone interaction, communication skills must be applied with greater intent and attention to achieve an effective consultation outcome.

  14. One-Year Weight Loss with a Telephone-Based Lifestyle Program

    Directory of Open Access Journals (Sweden)

    Christina Holzapfel

    2016-07-01

    Full Text Available Objective: Telephone-based weight loss programs are offered as an alternative to face-to-face obesity treatments, but data on the effectiveness regarding weight loss are limited. Therefore, we evaluated a telephone-based lifestyle program in a real-world setting. Methods: The telephone-based intervention consists of regular phone calls providing individualized lifestyle recommendations, and delivery of printed materials. Anthropometric and metabolic data are collected by general practitioners or are self-reported. Results: Baseline data were available from 398 participants (61% men; weight 103.12 ± 14.21 kg; BMI 33.38 ± 2.83 kg/m2 and 1-year data from 258 (65% participants. In the completers, mean weight change was -4.25 ± 5.18 kg (p Conclusions: The telephone-based lifestyle program results in a moderate weight loss after 12 months, which may be comparable to face-to-face interventions. Telephone-based weight loss support is independent of time and location and represents a tool which is also accepted by men.

  15. Panorama of mining activities in France during 1995

    International Nuclear Information System (INIS)

    Michel, J.C.; Bornuat, M.; Mouron, R.

    1996-01-01

    The French mining industry in 1995 continued to follow the overall trend of the past 5 to 10 years characterized mainly by: 1)a decline in the production of most energy materials: oil, coal, uranium. This decline will probably be further accentuated over the next two years with the planned closure of Lodeve (U), Forbach, La Mure and Carmaux (coal). Gas production, however, has remained relatively stable at 4.7 to 5 billion m''3 per year. 2)a scarcity of metal ore mines in Metropolitan France 3)an increase in the production of gold that, in 1995, came close to 6 tonnes in Metropolitan France and reached 8.4 tonnes with French Guiana. 4)the development of metal ore mining in the DOM-TOM 5) divergent developments in the industrial mineral sector: downward trends for sulfur, talc, andalusite, diatomite and silica; upward trends for kaolin, mica, feldspar and salt. Although overall the decline in mine production continued, the panorama does include some positive aspects: 1)France's independence in the energy sector exceeded the half-way mark two years ago and 1995 saw an appreciable decrease in the nation's energy bill compared to 1994. 2)French companies involved in metal mining have adapted themselves to world trends: Cogema has diversified its uranium sources mainly through its mining interests in Canada; Eramet has strengthened its activities by becoming the majority shareholder of Comilog, a manganese producer in Gabon. France also has mining interests in Africa, South America and Europe through LaSource Compagnie Miniere (BRGM and Normandy) created in 1995 3) France's position and production in the industrial mineral sector are significant at European scale, if not at world scale, as regards andalusite, diatomite, kaolin, mica, feldspar, sulfur, potassium, salt and industrial silica. Finally, mention must be made of the increasing environmental awareness by the French authorities and mining companies. This has resulted in a major rehabilitation of mine sites by

  16. Ghana - Mining and Development

    OpenAIRE

    Mohan, P.C.

    2004-01-01

    The objectives of the project ($9.37 million, 1996-2001) were to (a) enhance the capacity of the mining sector institutions to carry out their functions of encouraging and regulating investments in the mining sector in an environmentally sound manner and (b) support the use of techniques and mechanisms that will improve productivity, financial viability and reduce the environmental impact of ...

  17. Panorama of mining activities in France during 1991

    International Nuclear Information System (INIS)

    Heinry, C.; Michel, J.C.

    1992-01-01

    1991 can be considered as year of transition during which the world economy was adapting to the new political situation arising out of the Gulf War and the collapse of the Soviet Bloc. Although a major conflict normally causes a rise in the price of gold and a high demand for base products, this time the raw materials market did not react in the normal way. The prices of almost all products dropped throughout the year, and the dollar increase (average exchange rate for the year = FF 5.65) did not compensate European industry for this drop in metal prices. The economic slowdown in America, Europe and, which is new, Japan, compounded by the consequences of CIS export, caused serious harm to western firms, including those of the European Community: seriously disrupted markets, price falls, production units in danger. The purpose of this paper is to give a panorama of mining activities in France during 1991. The French mineral sector continued with difficulty to adjust to the economic trend through reductions in staff and production capacities: the Malines Zn-Pb mine closed, uranium mines in the Vendee and Limousin closed, mining activities at the Salsigne gold mine and its refining plants stopped. The field of energy supplies saw a fall off in both coal and petroleum production. Gas production, however, rose to a level close to that of 1987. Uranium production continued to ease; in spite of a relatively stable demand, poor prices coupled with the exhaustion of certain deposits and the public's preoccupation with preserving the environment, led to mines being closed. 15 refs., 2 figs., 11 tabs

  18. Coal Mine Methane in Russia

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-07-01

    This paper discusses coal mine methane emissions (CMM) in the Russian Federation and the potential for their productive utilisation. It highlights specific opportunities for cost-effective reductions of CMM from oil and natural gas facilities, coal mines and landfills, with the aim of improving knowledge about effective policy approaches.

  19. 49 CFR 195.52 - Telephonic notice of certain accidents.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Telephonic notice of certain accidents. 195.52... TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE Annual, Accident, and Safety-Related Condition Reporting § 195.52 Telephonic notice of certain accidents. (a) At the earliest practicable moment following discovery of a...

  20. Maintaining clinical governance when giving telephone advice.

    Science.gov (United States)

    Alazawi, William; Agarwal, Kosh; Suddle, Abid; Aluvihare, Varuna; Heneghan, Michael A

    2013-10-01

    Delivering excellent healthcare depends on accurate communication between professionals who may be in different locations. Frequently, the first point of contact with the liver unit at King's College Hospital (KCH) is through a telephone call to a specialist registrar or liver fellow, for whom no case notes are available in which to record information. The aim of this study was to improve the clinical governance of telephone referrals and to generate contemporaneous records that could be easily retrieved and audited. An electronic database for telephone referrals and advice was designed and made securely available to registrars in our unit. Service development in a tertiary liver centre that receives referrals from across the UK and Europe. Demographic and clinical data were recorded prospectively and analysed retrospectively. Data from 350 calls were entered during 5 months. The information included the nature and origin of the call (200 from 75 different institutions), disease burden and severity of disease among the patients discussed with KCH, and outcome of the call. The majority of cases were discussed with consultants or arrangements were made for formal review at KCH. A telephone referrals and advice database provides clinical governance, serves as a quality indicator and forms a contemporaneous record at the referral centre. Activity data and knowledge of disease burden help to tailor services to the needs of referrers and commissioners. We recommend implementation of similar models in other centres that give extramural verbal advice.

  1. Discussion on the safety production risk managmeent of uranium mines

    International Nuclear Information System (INIS)

    Liu Bin; Luo Yun; Hu Penghua; Zhu Disi

    2009-01-01

    Based on the modern safety risk management theories and according to the actual situation, risk management for work safety in uranium mines is discussed from three aspects: risk identification,risk analysis and evaluation, and risk control. Referring to the '4M(Men,Machine,Medium,Management) factors' and 'Three types of hazards' theory, the classification of uranium mine accidents and risk factors are analyzed. In addition, the types and evaluation indexes of major risks of uranium mines as well as the 'spot, line, area' model of risk identification and analysis and the 'hierarchical' risk control mechanism are also studied. (authors)

  2. Present and future mine effluents management at Zirovski Vrh uranium mine

    International Nuclear Information System (INIS)

    Logar, Z.; Likar, B.; Gantar, I.

    2002-01-01

    Zirovski Vrh uranium mine and its facilities are situated on the northeastern slopes of the Zirovski Vrh ridge (960 m) and on the southern slopes of Crna gora (611 m) respectively. Mine elevation is from 430 m (bottom of the valley) to 580 m (P-1 adit). All effluents from the mine and mill objects flow into the Brebovscica river (with average yearly flow of 0.74 m 3 /s): run off mine water; mine waste pile Jazbec outflow; mill tailings Borst outflows; effluents from mine temporary mine waste piles P-1, P-9, P-36 are of minor significance. The first three effluents and the recipient surface water flows (the Todrascica brook and the Brebovscica river) are monitored extensively. The impact of radioactive polluted outflows on named waters is proved, but far under the maximal permitted limit values. The authorised maximal limits values for mine effluents were obtained in 1996. Detail design will ensure that this values will not be exceeded in the future. The long term planes are to minimise the uranium concentrations in the run off mine water by target underground drilling. The mine waste pile and the mill tailings will be covered by engineered cover system to avoid clean water contamination by weathering and ablution as well. The existing effluents from the mill tailings will diminish after the remediation and consolidation of the tailing. The Government of Slovenia funds the remediation of the uranium production site Zirovski Vrh. Estimated needed funds for remediation of the main objects are shown in the table below. The total investment includes also the costs for effluents control. Area Mio US$ Underground mine remediation 19.00 Mine waste pile remediation 6.50 Mill tailings remediation 2.24 Total investment costs 27.74 Above figures do not include operation costs of the Zirovski Vrh Mine, approximately US$ 2.2 Mio per year nowadays. The last implementation schedule foresights the end of remediation works in year 2005. After that starts trial monitoring of 5 years

  3. Chapter 2: uranium mines and mills

    International Nuclear Information System (INIS)

    O'Connell, W.J.

    1983-03-01

    This chapter will be included in a larger ASCE Committee Report. Uranium mining production is split between underground and open pit mines. Mills are sized to produce yellowcake concentrate from hundreds to thousands of tons of ore per day. Miner's health and safety, and environmental protection are key concerns in design. Standards are set by the US Mine Safety and Health Administration, the EPA, NRC, DOT, the states, and national standards organizations. International guidance and standards are extensive and based on mining experience in many nations

  4. Automatic Smoker Detection from Telephone Speech Signals

    DEFF Research Database (Denmark)

    Poorjam, Amir Hossein; Hesaraki, Soheila; Safavi, Saeid

    2017-01-01

    This paper proposes an automatic smoking habit detection from spontaneous telephone speech signals. In this method, each utterance is modeled using i-vector and non-negative factor analysis (NFA) frameworks, which yield low-dimensional representation of utterances by applying factor analysis...... method is evaluated on telephone speech signals of speakers whose smoking habits are known drawn from the National Institute of Standards and Technology (NIST) 2008 and 2010 Speaker Recognition Evaluation databases. Experimental results over 1194 utterances show the effectiveness of the proposed approach...... for the automatic smoking habit detection task....

  5. THE DEVELOPMENT OF A NOVEL MODEL FOR MINING METHOD SELECTION IN A FUZZY ENVIRONMENT; CASE STUDY: TAZAREH COAL MINE, SEMNAN PROVINCE, IRAN

    Directory of Open Access Journals (Sweden)

    Fatemeh Asadi Ooriad

    2018-01-01

    Full Text Available Mining method selection (MMS for mineral resources is one of the most significant steps in mining production management. Due to high costs involved and environmental problems, it is usually not possible to change the coal mining method after planning and starting the operation. In most cases, MMS can be considered as an irreversible process. Selecting a method for mining mainly depends on geological, geometrical properties of the resource, environmental impacts of exploration, impacts of hazardous activities and land use management. This paper seeks to develop a novel model for mining method selection in order to achieve a stable production rate and to reduce environmental problems. This novel model is illustrated by implementing for Tazareh coal mine. Given the disadvantages of the previous models for selecting coal mining method, the purpose of this research is modifying the previous models and offering a comprehensive model. In this respect, TOPSIS method is used as a powerful multi attribute decision-making procedure in Fuzzy environment. After implementation of the presented model in Tazareh coal mine, long wall mining method has been selected as the most appropriate mining method.

  6. Single-section mines carve out a market

    International Nuclear Information System (INIS)

    Sanda, A.P.

    1991-01-01

    In the Appalachian states of Pennsylvania, West Virginia, Kentucky and Virginia there are large operations whose complexes are an agglomeration of one and two-section mines; large operators whose own mines are augmented by small contractors; small contractors whose one-section mines collectively make them large operators within this genre; and independent, sole-owner operators of single-contract mines. Finally, there is the totally independent operator who negotiates his own leases, mines his own coal and searches for his own markets. The article profiles 6 single section mines. Mines were chosen on criteria including: the equipment in use; obtaining a representive sample of the states with many small coal mines particularly West Virginia, Virginia and Kentucky; the divergence of operators and situations. The mines chosen were: Elk Run; Kinney Branch Coal Co. No. 5 mine; A ampersand G No. 1 mine; Dotson and Rife Coal Co.; Bullion Hollow Coal Co.; and Bruce Coal. The article includes production rates and mine specifications. 1 tab

  7. 20 CFR 638.516 - Laundry, mail, and telephone service.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Laundry, mail, and telephone service. 638.516... PROGRAM UNDER TITLE IV-B OF THE JOB TRAINING PARTNERSHIP ACT Center Operations § 638.516 Laundry, mail, and telephone service. (a) The center operator shall provide adequate laundry services and supplies at...

  8. Is there a bias against telephone interviews in qualitative research?

    Science.gov (United States)

    Novick, Gina

    2008-08-01

    Telephone interviews are largely neglected in the qualitative research literature and, when discussed, they are often depicted as a less attractive alternative to face-to-face interviewing. The absence of visual cues via telephone is thought to result in loss of contextual and nonverbal data and to compromise rapport, probing, and interpretation of responses. Yet, telephones may allow respondents to feel relaxed and able to disclose sensitive information, and evidence is lacking that they produce lower quality data. This apparent bias against telephone interviews contrasts with a growing interest in electronic qualitative interviews. Research is needed comparing these modalities, and examining their impact on data quality and their use for studying varying topics and populations. Such studies could contribute evidence-based guidelines for optimizing interview data. 2008 Wiley Periodicals, Inc

  9. IMPROVMENT OF THE MINING METHOD IN THE BAUXITE MINE ĆUKOVAC-GRIŽINICA

    Directory of Open Access Journals (Sweden)

    Borislav Perić

    1992-12-01

    Full Text Available Exploitation of bauxite in region of Dalmatia has tradition of more than 50 years. The biggest underground mine of this bauxite hearing area was developed in deposit Ćukovac-Grižinica with proved workable reserves of 1.2 x 106 t. Yearly output in 1990. was 100.000 t. Production in this mine started 1987, and sublevel caving method was used. Coefficient of extraction in the parts with weak rocks is low, and unsufficient security in the conditions with firm roof. Therefore investigation of improvement of mining method was carrying on to coinside characteristics of rocks, and mining methods. Following methods were selected: sublevel caving (actually retreat stoping, sublevel sloping and sublevel caving with bauxite protection layer (the paper is published in Croatian.

  10. Application of EREP imagery to fracture-related mine safety hazards and environmental problems in mining. [Indiana

    Science.gov (United States)

    Wier, C. E.; Wobber, F. J.; Amato, R. V.; Russell, O. R. (Principal Investigator)

    1974-01-01

    The author has identified the following significant results. All Skylab 2 imagery received to date has been analyzed manually and data related to fracture analysis and mined land inventories has been summarized on map-overlays. A comparison of the relative utility of the Skylab image products for fracture detection, soil tone/vegetation contrast mapping, and mined land mapping has been completed. Numerous fracture traces were detected on both color and black and white transparencies. Unique fracture trace data which will contribute to the investigator's mining hazards analysis were noted on the EREP imagery; these data could not be detected on ERTS-1 imagery or high altitude aircraft color infrared photography. Stream segments controlled by fractures or joint systems could be identified in more detail than with ERTS-1 imagery of comparable scale. ERTS-1 mine hazards products will be modified to demonstrate the value of this additional data. Skylab images were used successfully to update a mined land map of Indiana made in 1972. Changes in mined area as small as two acres can be identified. As the Energy Crisis increases the demand for coal, such demonstrations of the application of Skylab data to coal resources will take on new importance.

  11. US uranium mining industry: background information on economics and emissions

    Energy Technology Data Exchange (ETDEWEB)

    Bruno, G.A.; Dirks, J.A.; Jackson, P.O.; Young, J.K.

    1984-03-01

    A review of the US uranium mining industry has revealed a generally depressed industry situation. The 1982 U/sub 3/O/sub 8/ production from both open-pit and underground mines declined to 3800 and 6300 tons respectively with the underground portion representing 46% of total production. US exploration and development has continued downward in 1982. Employment in the mining and milling sectors has dropped 31% and 17% respectively in 1982. Representative forecasts were developed for reactor fuel demand and U/sub 3/O/sub 8/ production for the years 1983 and 1990. Reactor fuel demand is estimated to increase from 15,900 tons to 21,300 tons U/sub 3/O/sub 8/ respectively. U/sub 3/O/sub 8/ production, however, is estimated to decrease from 10,600 tons to 9600 tons respectively. A field examination was conducted of 29 selected underground uranium mines that represent 84% of the 1982 underground production. Data was gathered regarding population, land ownership and private property valuation. An analysis of the increased cost to production resulting from the installation of 20-meter high exhaust borehole vent stacks was conducted. An assessment was made of the current and future /sup 222/Rn emission levels for a group of 27 uranium mines. It is shown that /sup 222/Rn emission rates are increasing from 10 individual operating mines through 1990 by 1.2 to 3.8 times. But for the group of 27 mines as a whole, a reduction of total /sup 222/Rn emissions is predicted due to 17 of the mines being shutdown and sealed. The estimated total /sup 222/Rn emission rate for this group of mines will be 105 Ci/yr by year end 1983 or 70% of the 1978-79 measured rate and 124 Ci/yr by year end 1990 or 83% of the 1978-79 measured rate.

  12. US uranium mining industry: background information on economics and emissions

    International Nuclear Information System (INIS)

    Bruno, G.A.; Dirks, J.A.; Jackson, P.O.; Young, J.K.

    1984-03-01

    A review of the US uranium mining industry has revealed a generally depressed industry situation. The 1982 U 3 O 8 production from both open-pit and underground mines declined to 3800 and 6300 tons respectively with the underground portion representing 46% of total production. US exploration and development has continued downward in 1982. Employment in the mining and milling sectors has dropped 31% and 17% respectively in 1982. Representative forecasts were developed for reactor fuel demand and U 3 O 8 production for the years 1983 and 1990. Reactor fuel demand is estimated to increase from 15,900 tons to 21,300 tons U 3 O 8 respectively. U 3 O 8 production, however, is estimated to decrease from 10,600 tons to 9600 tons respectively. A field examination was conducted of 29 selected underground uranium mines that represent 84% of the 1982 underground production. Data was gathered regarding population, land ownership and private property valuation. An analysis of the increased cost to production resulting from the installation of 20-meter high exhaust borehole vent stacks was conducted. An assessment was made of the current and future 222 Rn emission levels for a group of 27 uranium mines. It is shown that 222 Rn emission rates are increasing from 10 individual operating mines through 1990 by 1.2 to 3.8 times. But for the group of 27 mines as a whole, a reduction of total 222 Rn emissions is predicted due to 17 of the mines being shutdown and sealed. The estimated total 222 Rn emission rate for this group of mines will be 105 Ci/yr by year end 1983 or 70% of the 1978-79 measured rate and 124 Ci/yr by year end 1990 or 83% of the 1978-79 measured rate

  13. Bandwidth Extension of Telephone Speech Aided by Data Embedding

    Directory of Open Access Journals (Sweden)

    Sagi Ariel

    2007-01-01

    Full Text Available A system for bandwidth extension of telephone speech, aided by data embedding, is presented. The proposed system uses the transmitted analog narrowband speech signal as a carrier of the side information needed to carry out the bandwidth extension. The upper band of the wideband speech is reconstructed at the receiving end from two components: a synthetic wideband excitation signal, generated from the narrowband telephone speech and a wideband spectral envelope, parametrically represented and transmitted as embedded data in the telephone speech. We propose a novel data embedding scheme, in which the scalar Costa scheme is combined with an auditory masking model allowing high rate transparent embedding, while maintaining a low bit error rate. The signal is transformed to the frequency domain via the discrete Hartley transform (DHT and is partitioned into subbands. Data is embedded in an adaptively chosen subset of subbands by modifying the DHT coefficients. In our simulations, high quality wideband speech was obtained from speech transmitted over a telephone line (characterized by spectral magnitude distortion, dispersion, and noise, in which side information data is transparently embedded at the rate of 600 information bits/second and with a bit error rate of approximately . In a listening test, the reconstructed wideband speech was preferred (at different degrees over conventional telephone speech in of the test utterances.

  14. Bandwidth Extension of Telephone Speech Aided by Data Embedding

    Directory of Open Access Journals (Sweden)

    David Malah

    2007-01-01

    Full Text Available A system for bandwidth extension of telephone speech, aided by data embedding, is presented. The proposed system uses the transmitted analog narrowband speech signal as a carrier of the side information needed to carry out the bandwidth extension. The upper band of the wideband speech is reconstructed at the receiving end from two components: a synthetic wideband excitation signal, generated from the narrowband telephone speech and a wideband spectral envelope, parametrically represented and transmitted as embedded data in the telephone speech. We propose a novel data embedding scheme, in which the scalar Costa scheme is combined with an auditory masking model allowing high rate transparent embedding, while maintaining a low bit error rate. The signal is transformed to the frequency domain via the discrete Hartley transform (DHT and is partitioned into subbands. Data is embedded in an adaptively chosen subset of subbands by modifying the DHT coefficients. In our simulations, high quality wideband speech was obtained from speech transmitted over a telephone line (characterized by spectral magnitude distortion, dispersion, and noise, in which side information data is transparently embedded at the rate of 600 information bits/second and with a bit error rate of approximately 3⋅10−4. In a listening test, the reconstructed wideband speech was preferred (at different degrees over conventional telephone speech in 92.5% of the test utterances.

  15. Appalachian mine soil morphology and properties: Effects of weathering and mining method

    Energy Technology Data Exchange (ETDEWEB)

    Haering, K.C.; Daniels, W.L.; Galbraith, J.M. [Virginia Polytechnic Institute & State University, Blacksburg, VA (United States)

    2004-08-01

    Surface coal mining and reclamation methods in the Appalachians have changed dramatically since the passage of the Surface Mining Control and Reclamation Act (SMCRA) of 1977 and subsequent improvements in mining and reclamation technology. In this study, 30 pre-SMCRA mine soil profiles (4-20 yr old) were examined and sampled in 1980 and compared with 20 mine soil profiles (8-13 yr old) described in the same area in 2002 after it had been completely remined by modern deep cut methods. Mine soils in both sampling years had high rock fragment content (42-81%), relatively well-developed A horizons, and generally exhibited A-C or A-AC-C horizonation. Although six Bw horizons were described in 1980, only two met all requirements for cambic horizons. The 1980 mine soils developed in overburden dominated by oxidized, preweathered material due to relatively shallow mining cuts. The 1980 mine soils had lower rock fragment content, finer textures, lower pH, and tended to be more heterogeneous in horizonation, morphology, and texture than soils observed in 2002, which had formed primarily in unweathered overburden from deeper cuts. Half the pedons sampled in both years had densic materials within 70 cm of the surface. Four poorly to very poorly drained soil profiles were described in each sampling year containing distinct hydric soil indicators in surface horizons. While older pre-SMCRA mine soils do have many properties in common with newer mine soils, their properties are highly influenced by the fact that they generally have formed in more weathered overburden from higher in the geologic column. Overall, Appalachian mine soils are much more complex in subsoil morphology than commonly assumed, and differential compaction greatly complicates their internal drainage and limits their overall productivity potential.

  16. Recent developments in Australia's uranium mining industry

    International Nuclear Information System (INIS)

    McKay, A.D.

    2001-01-01

    Uranium is produced at two mining/milling operations in Australia - Ranger in the Alligator Rivers Region of the Northern Territory, and Olympic Dam in South Australia. In 1996, Ranger produced 4138 tonnes (t) U 3 O 8 from stockpiled ore mined from Ranger No. 1 Orebody. The capacity of the Ranger mill is being expanded to 5000 tonnes per annum (tpa) U 3 O 8 to coincide with the commencement of mining from No. 3 Orebody in mid-1997. The Olympic Dam copper-uranium-gold-silver deposit is the world's largest deposit of low cost uranium. The operation currently has an annual production of 85,000 t copper, 1700 t U 3 O 8 and associated gold and silver. WMC Ltd proposes to expand annual production to 200 000 t copper and approximately 4600 t U 3 O 8 by end of 1999. The environmental impact of the expansion is being assessed jointly by both Commonwealth and South Australian Governments. A draft Environmental Impact Statement (EIS) was released in May. Since its election in March 1996, the Liberal/National Party Coalition Government has made a number of changes to the Commonwealth Government's policies relating to uranium mining, including removal of the former Government's 'three mines' policy, and relaxation of the guidelines for foreign investment in Australian uranium mines. These changes, together with an improved outlook for the uranium market, have resulted in proposals to develop new mines at Jabiluka (Northern Territory), Kintyre (Western Australia) and Beverley (South Australia). Energy Resources of Australia Ltd proposes to develop an underground mine at Jabiluka with the ore to be processed at Ranger mill. Initial production will be 1800 tpa U 3 O 8 which will increase to 4000 tpa U 3 O 8 by the 14th year. The draft EIS was released for public comment in October 1996, and the final EIS is to be released in June 1997. Canning Resources Ltd proposes to mine the Kintyre deposit by open cut methods commencing in 1999 with an annual production of 1200 tpa U 3 O 8

  17. Mining in 2015

    Energy Technology Data Exchange (ETDEWEB)

    Hood, M.; Hatherly, P.; Gurgenci, H. [Centre for Mining Technology and Equipment (Australia)

    1999-10-01

    New technology in open-pit and underground hard rock mining in 2015 is anticipated in this article, based on a paper presented to the 1998 invitation symposium - 'Technology - Australia's future: new technology for traditional industry', held in Freemantle, WA, 24-25 November 1998. It is expected that essential mining operations of rock breakage and transport and ore processing will still exist but the use of drills, shovels/LHDs and trucks is likely to be replaced by continuous, intelligent, automated mining systems. Rock blasting models need to be fed data on rock properties at each blasthole for high accuracy. The authors believe that in 2015 measurements of rock properties will be a routine part of the drilling process. Blasthole drills will be fitted with a range of mechanical and geophysical sensors. New, non-explosive methods of rock breaking such as oscillating disc cutting, may be available. Mining automation will improve safety and productivity, perhaps with the automation of dragline swing LHDs and trucks may be able to drive themselves, with operators monitoring and intervening when necessary. Performance and machine condition data may be applied to improve equipment design. Australian mining stands to gain by these advances in mining technology. 1 fig., 3 photos.

  18. Development trends in mining technologies. [Poland

    Energy Technology Data Exchange (ETDEWEB)

    Sikora, W

    1983-01-01

    Research programs on underground black coal mining in Poland are discussed. It is assumed that no major technology changes will take place by the year 2000. Second generation of mining technologies will be used after the year 2000. The following technologies of the second generation are discussed: in-situ gasification, chemical coal disintegration, manless hydraulic mining with hydraulic transport. Research programs on technologies of the second generation should guarantee their commercial and economic use by the year 2000. The following targets for research programs aimed at increasing productivity, reducing mining cost, reducing labor and increasing safety in mining, covering the next 2 decades are comparatively evaluated: increasing advance rate of longwall faces, increasing machine time of integrated face systems by at least 20%, improving design of powered supports for eliminating rock falls, development of heavy-duty face systems for longwall mining with hydraulic stowing, development of face systems for mining thick coal seams on their whole thickness, slice mining thick coal seams with artificial roofs, bidirectional longwall mining by shearer loaders, use of more elastic and reliable mining systems.

  19. 39 CFR 6.4 - Attendance by conference telephone call.

    Science.gov (United States)

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Attendance by conference telephone call. 6.4 Section 6.4 Postal Service UNITED STATES POSTAL SERVICE THE BOARD OF GOVERNORS OF THE U.S. POSTAL SERVICE MEETINGS (ARTICLE VI) § 6.4 Attendance by conference telephone call. For regularly scheduled meetings of...

  20. Socio-economic and environmental impact of mining on women in Kasigau mining zone in Taita Taveta County

    Directory of Open Access Journals (Sweden)

    Maarifa Ali Mwakumanya

    2016-01-01

    Full Text Available The Kasigau ward is home to many gemstones with their mining contributing to the county's economic development. The mining sector is dominated by artisanal and small scale mining with 3–5% of women employed. A Participatory Action Research (PAR approach was used to involve women with the aim of establishing home-grown interventions. Seven villages and forty nine households participated in household interviews, Focus Group Discussions (FGDs and female feedback reflection meetings to generate and analyze data. Women worked as zururas (workers or employees, in deplorable environmental conditions, and were heavily impacted by mining activities. Women developed actionable strategies on productive engagement in the artisanal mining sector.

  1. A study on the reduction in the production cost of the long-running collieries and mechanization of coal mining

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Young Shik; Hong, Jee Sang; Lee, Kyung Woon; Kim, Oak Hwan; Kim, Dae Kyung [Korea Inst. of Geology Mining and Materials, Taejon (Korea, Republic of)

    1995-12-01

    The reducing coal market has been enforcing the coal industry to make exceptional rationalization and restructuring efforts since the end of the eighties. To the competition from crude oil and natural gas has been added the growing pressure from rising wages and production cost. To improve the competitive position of the coal mines against oil and gas through cost reduction, studies on mining technology have been carried out. Investigations and analyses on the technologies used in Hanbo Colliery which was designated one of the long term running mines were done and recommendations were made. And also a site test of plough were implemented at the KyungDong Colliery. The mechanization program of 1994 were analyzed and evaluated separately. (author). 38 refs.

  2. Evaluating telephone follow-up of a mail survey of community pharmacies.

    Science.gov (United States)

    Westrick, Salisa C; Mount, Jeanine K

    2007-06-01

    Mail and telephone are commonly used modes of survey with pharmacists. Research conducted using general population surveys consistently describes mail surveys as being less expensive but yielding lower response rates than telephone surveys. However, findings obtained from the general population may not be generalizable to pharmacist surveys. This study evaluates the effectiveness of telephone follow-up of mail survey nonrespondents by comparing the 2 survey modes on response rates, cooperation rates, cost per sample unit, and cost per usable response and evaluating potential nonresponse bias in the context of immunization activities. A census mail survey of 1,143 Washington State community pharmacies and a follow-up telephone survey of 262 randomly selected mail survey nonrespondents were compared. Both surveys included the same 15 yes/no-type questions to ask respondents about their pharmacy's involvement in immunization activities. The mail survey yielded a response rate 1 of 26.7% and a cooperation rate 1 of 26.7%, compared with 83.6% and 87.8%, respectively, for the follow-up telephone survey. With respect to cost per sample unit, the mail survey was the least expensive option ($1.20). However, when comparing cost per usable response, the mail survey was the most expensive ($4.37), and the follow-up telephone survey without an advance notification was the least expensive ($1.99). Furthermore, results suggest the presence of nonresponse bias: compared with pharmacies participating in the follow-up telephone survey, pharmacies participating in the mail survey were more likely to be involved in in-house immunization services but less likely to be involved in outsourced services. The telephone survey achieved higher outcome rates with reduced cost per usable response. A telephone survey is a viable mode that holds promise in pharmacy practice research. Maximizing response rates and assessing potential nonresponse bias should be a standard practice among pharmacy

  3. Mining Adverse Events of Dietary Supplements from Product Labels by Topic Modeling

    Science.gov (United States)

    Wang, Yefeng; Gunashekar, Divya R.; Adam, Terrence J.; Zhang, Rui

    2018-01-01

    The adverse events of the dietary supplements should be subject to scrutiny due to their growing clinical application and consumption among U.S. adults. An effective method for mining and grouping the adverse events of the dietary supplements is to evaluate product labeling for the rapidly increasing number of new products available in the market. In this study, the adverse events information was extracted from the product labels stored in the Dietary Supplement Label Database (DSLD) and analyzed by topic modeling techniques, specifically Latent Dirichlet Allocation (LDA). Among the 50 topics generated by LDA, eight topics were manually evaluated, with topic relatedness ranging from 58.8% to 100% on the product level, and 57.1% to 100% on the ingredient level. Five out of these eight topics were coherent groupings of the dietary supplements based on their adverse events. The results demonstrated that LDA is able to group supplements with similar adverse events based on the dietary supplement labels. Such information can be potentially used by consumers to more safely use dietary supplements. PMID:29295169

  4. Lignite mining in India - technology highlights

    Energy Technology Data Exchange (ETDEWEB)

    Tandon, G L

    1984-01-01

    Figures for lignite production and its role in the Indian energy scene are presented. Lignite mining at Neyveli is described in detail, including: advance preparation of the overburden strata; modifications to bucket wheel excavators; tackling the sticky surface clays; ground water management; storm water control; tackling higher overburden-to-lignite ratios; materials handling; communications within the mine; the development of indigenous mining equipment; and ecology and environmental control.

  5. Integrated mined-area reclamation and land-use planning. Volume 3C. A case study of surface mining and reclamation planning: Georgia Kaolin Company Clay Mines, Washington County, Georgia

    Energy Technology Data Exchange (ETDEWEB)

    Guernsey, J L; Brown, L A; Perry, A O

    1978-02-01

    This case study examines the reclamation practices of the Georgia Kaolin's American Industrial Clay Company Division, a kaolin producer centered in Twiggs, Washington, and Wilkinson Counties, Georgia. The State of Georgia accounts for more than one-fourth of the world's kaolin production and about three-fourths of U.S. kaolin output. The mining of kaolin in Georgia illustrates the effects of mining and reclaiming lands disturbed by area surface mining. The disturbed areas are reclaimed under the rules and regulations of the Georgia Surface Mining Act of 1968. The natural conditions influencing the reclamation methodologies and techniques are markedly unique from those of other mining operations. The environmental disturbances and procedures used in reclaiming the kaolin mined lands are reviewed and implications for planners are noted.

  6. Hospitalization patterns associated with Appalachian coal mining.

    Science.gov (United States)

    Hendryx, Michael; Ahern, Melissa M; Nurkiewicz, Timothy R

    2007-12-01

    The goal of this study was to test whether the volume of coal mining was related to population hospitalization risk for diseases postulated to be sensitive or insensitive to coal mining by-products. The study was a retrospective analysis of 2001 adult hospitalization data (n = 93,952) for West Virginia, Kentucky, and Pennsylvania, merged with county-level coal production figures. Hospitalization data were obtained from the Health Care Utilization Project National Inpatient Sample. Diagnoses postulated to be sensitive to coal mining by-product exposure were contrasted with diagnoses postulated to be insensitive to exposure. Data were analyzed using hierarchical nonlinear models, controlling for patient age, gender, insurance, comorbidities, hospital teaching status, county poverty, and county social capital. Controlling for covariates, the volume of coal mining was significantly related to hospitalization risk for two conditions postulated to be sensitive to exposure: hypertension and chronic obstructive pulmonary disease (COPD). The odds for a COPD hospitalization increased 1% for each 1462 tons of coal, and the odds for a hypertension hospitalization increased 1% for each 1873 tons of coal. Other conditions were not related to mining volume. Exposure to particulates or other pollutants generated by coal mining activities may be linked to increased risk of COPD and hypertension hospitalizations. Limitations in the data likely result in an underestimate of associations.

  7. Nuclear regulation of South African mines: An industry perspective

    International Nuclear Information System (INIS)

    Wymer, D.G.

    2001-01-01

    South African mines have become subject to a rigid and prescriptive system of nuclear regulation that has its roots in the past when South Africa embarked upon a period of nuclear development spanning the full nuclear fuel cycle, and in which the South African gold mining industry once played a major part in the supply of uranium as a low grade by-product. Radiation hazards in the mines are generally very moderate, even in the few gold mines associated with uranium by-product, and to not warrant the type of regulatory attention normally applied to nuclear installations, or even to uranium mines. The continued imposition of strict nuclear regulatory requirements has caused severe financial hardship and threatens the survival of certain mining operations, while seemingly having little or no health benefits to workers or the public. With the development of modern, comprehensive mine health and safety legislation, a more appropriate, effective, and far less costly vehicle for controlling radiation hazards in mines now exists, utilizing the resources of the Mine Health and Safety Inspectorate. This approach is now being proposed, in the drafting of new legislation, as constituting a better alternative to the nuclear regulation of mines. (author)

  8. Willingness to pay for rural telephone services: Implications for rural ...

    African Journals Online (AJOL)

    WTP) for rural telephone services and the implications on poverty reduction in Southeast Nigeria. The key research problem was the inability of the telephone providers or regulatory agencies to estimate the amount the people were willing to pay ...

  9. Coal mining situation in the Federal Republic of Germany. First half-year 1994

    International Nuclear Information System (INIS)

    1994-01-01

    The report provides up-to-date information on the German coal mining industry for the reporting time period. Data on coal mining as well as on brown coal mining cover: Production, stocks, productivity, employes, sales, imports and exports of coal and coal products. (orig.) [de

  10. Mine drivage in hydraulic mines

    Energy Technology Data Exchange (ETDEWEB)

    Ehkber, B Ya

    1983-09-01

    From 20 to 25% of labor cost in hydraulic coal mines falls on mine drivage. Range of mine drivage is high due to the large number of shortwalls mined by hydraulic monitors. Reducing mining cost in hydraulic mines depends on lowering drivage cost by use of new drivage systems or by increasing efficiency of drivage systems used at present. The following drivage methods used in hydraulic mines are compared: heading machines with hydraulic haulage of cut rocks and coal, hydraulic monitors with hydraulic haulage, drilling and blasting with hydraulic haulage of blasted rocks. Mining and geologic conditions which influence selection of the optimum mine drivage system are analyzed. Standardized cross sections of mine roadways driven by the 3 methods are shown in schemes. Support systems used in mine roadways are compared: timber supports, roof bolts, roof bolts with steel elements, and roadways driven in rocks without a support system. Heading machines (K-56MG, GPKG, 4PU, PK-3M) and hydraulic monitors (GMDTs-3M, 12GD-2) used for mine drivage are described. Data on mine drivage in hydraulic coal mines in the Kuzbass are discussed. From 40 to 46% of roadways are driven by heading machines with hydraulic haulage and from 12 to 15% by hydraulic monitors with hydraulic haulage.

  11. Radiation protection of workers in mines

    International Nuclear Information System (INIS)

    1986-01-01

    An ICRP report (publication 47) is presented which describes the principles and applications of methods by which radiation hazards may be controlled in mines, particularly in the uranium mining industry. Details are given of the dose limits for individual exposures from 222 Rn, 220 Rn and their decay products and ore dust. The measures described for controlling exposure are choice of mining method, source isolation, mechanical ventilation, air cleaning, backfitting, personal protective equipment and organization of work. Recommendations for air monitoring for radon and radon decay products and ore dust, external exposure monitoring and monitoring the quality of protective measures systems are also presented. Finally, recommendations on medical surveillance of miners are given. (UK)

  12. Call Us: Development of a Library Telephone Enquiry Service

    Science.gov (United States)

    Burke, Liz; Beranek, Lea

    2006-01-01

    The authors detail the trial and piloting of a telephone enquiry service (TES) at the Bundoora Campus Library at La Trobe University in order to attempt to resolve the balance between telephone and face-to-face enquiries at the library service desk. They investigated various options throughout 2001 and 2002 and settled on a centralised service…

  13. 75 FR 21979 - NRC Region II Address and Main Telephone Number Changes

    Science.gov (United States)

    2010-04-27

    ... Region II Address and Main Telephone Number Changes AGENCY: Nuclear Regulatory Commission. ACTION: Final... address for its Region II office and to update the main telephone number. The Region II office move and... update the NRC Region II office street address and office main telephone number. The physical location of...

  14. Discussion for management of ventilation system in uranium mines

    International Nuclear Information System (INIS)

    Li Xianjie; Ren Jianjun; Hu Penghua

    2014-01-01

    Radon exhaustion and ventilation are surely regarded as key links for safety production and radiation protection in underground uranium mines, and the crucial point to achieve safety production goals lies in timely and accurately adjusting and controlling of ventilation technical measures and ventilation system management with the changing operation conditions of mines. This paper proposes corresponding countermeasures based on the respectively systematical analysis of daily ventilation management, ventilation facilities and structures management, and ventilation system information management in uranium mines. Furthermore, standardized management approaches and suggestions are put forward to realize standardization of uranium mines' ventilation management and radon exhaustion technique. (authors)

  15. Performance evaluation methods and instrumentation for mine ventilation fans

    Institute of Scientific and Technical Information of China (English)

    LI Man; WANG Xue-rong

    2009-01-01

    Ventilation fans are one of the most important pieces of equipment in coal mines. Their performance plays an important role in the safety of staff and production. Given the actual requirements of coal mine production, we instituted a research project on the measurement methods of key performance parameters such as wind pressure, amount of ventilation and power. At the end a virtual instrument for mine ventilation fans performance evaluation was developed using a USB interface. The practical perform-ance and analytical results of our experiments show that it is feasible, reliable and effective to use the proposed instrumentation for mine ventilation performance evaluation.

  16. Old dumps of uranium mining

    International Nuclear Information System (INIS)

    Gatzweiler, R.; Mager, D.

    1993-01-01

    The production of natural uranium through mining and milling results in large volumes of low-level radioactive waste, mainly in mine dumps and mill tailings. Hazards which relate to abandoned uranium production sites and environmental remediation approaches are described in reference to the Wismut case. During the period 1947 to 1990 the former Soviet-German Wismut Corporation produced about 200 000 t of uranium from several deposits in Thuringia and Saxonia within a relatively small and densely populated area. These activities resulted in major land disturbance and other environmental damage. Restoration problems are highlighted. (orig.)

  17. Can Smartphones Enhance Telephone-Based Cognitive Assessment (TBCA)?

    OpenAIRE

    Rick Yiu-Cho Kwan; Claudia Kam-Yuk Lai

    2013-01-01

    TBCA has emerged to solve the limitations of administering cognitive assessments face-to-face. The recent development of telephones and knowledge advances in the area of cognitive impairment may affect the development of TBCA. The purpose of this paper is to discuss how smartphones can be used to enhance the applicability of TBCA, which has previously been administered by conventional telephone. This paper will first review, describe and critique the existing TBCA instruments. It will then di...

  18. Investigation of radon-222 emissions from underground uranium mines. Progress report No. 2

    International Nuclear Information System (INIS)

    Jackson, P.O.; Glissmeyer, J.A.; Enderlin, W.I.; Schwendiman, L.C.; Wogman, N.A.; Perkins, R.W.

    1980-02-01

    A reliable estimate of radon emissions to the environment from underground uranium mines was obtained through measurements of radon in ventilation exhaust air at 24 uranium mines and estimates of radon release from ore piles and waste piles at mines and in water pumped from mines. Three additional mines sampled in 1978 but not in 1979 were included in the overall results. Total production of U 3 O 8 from the mines thus far sampled represent about 63% of total 1978 US production from underground mines. Wide variation in radon emission per unit of production was shown from mine to mine; hence, it became necessary to sum all radon from all mines measured and divide by the sum of all U 3 O 8 production in 1978 from these mines to arrive at a valid estimate of Ci per ton of U 3 O 8 . This value was found to be 26.7 per ton or 5400 Ci/RRY (182 metric tons). The radon emitted in mine ventilation air was by far the dominant source, with other than ventilation exhaust sources accounting for less than three percent of radon in ventilation exhaust. Other observations of interest in this study were the diurnal fluctuations of radon with barometric pressure and the statistically significant relationship between radon released per year from a mine and the cumulative ore production at the time of radon measurement. The linear relationship between Ci/yr of radon and cumulative ore accounted for about half the variability.Several sources of random errors and possible biases were evaluated using some simple descriptive statistics insofar as the current data permitted. Errors in air flow rate in the vents sampled, fluctuations in radon emission with time of day, counting instrument calibration and production rate were estimated and combined to give an uncertainty of about +- 24 percent at the 95 percent confidence level

  19. Nichols Ranch ISL Uranium Mine - A case history

    International Nuclear Information System (INIS)

    Catchpole, G.; Thomas, G.

    2014-01-01

    The Nichols Ranch ISL Uranium Mine is located in the Powder River Basin of Wyoming, U.S.A. The mine is owned and operated by Uranerz Energy Corporation (Uranerz), a U.S. corporation headquartered in Casper, Wyoming. Nichols Ranch started operations in February 2014 and is the newest uranium mine to go into production in the USA. The uranium being extracted is hosted in a sandstone, roll-front deposit at a depth ranging from 400 to 800 feet [~120 to ~240 m). The In-Situ Recovery (ISL) mining method is employed at the Nichols Ranch mine which is the method currently being utilized at most uranium mines in the USA. Environmental permit applications for the Nichols Ranch mine were submitted to the appropriate regulatory agencies in late 2007. It required more than three and a half years to obtain all the necessary permits and licenses to construct and operate the mine. Construction of the mining facilities and the first wellfield started in late 2011 and was completed in late 2013. Mining results to date have been better than anticipated and Uranerz expects to reach its 2014 production target. The most challenging part of getting a new uranium mine in production in the United States of America was the three plus years it took to get through the environmental permitting process. Uranerz was one of three companies in 2011 that applied for permits to construct and operate uranium mines in Wyoming at essentially the same time. The Nichols Ranch mine is licensed to produce up to two million pounds per year of uranium (as U_3O_8) [~770 tU] ready for shipment to the converter. At this time only the ion exchange portion of the central processing plant has been installed at Nichols Ranch with uranium loaded resin being shipped to Cameco’s nearby Smith Ranch – Highland ISL uranium mine for elution, precipitation, drying and packaging under a toll processing agreement. Cameco provides Uranerz with dried and drummed yellowcake that Uranerz owns which is shipped to the

  20. Cordless telephone use: implications for mobile phone research.

    Science.gov (United States)

    Redmayne, Mary; Inyang, Imo; Dimitriadis, Christina; Benke, Geza; Abramson, Michael J

    2010-04-01

    Cordless and mobile (cellular) telephone use has increased substantially in recent years causing concerns about possible health effects. This has led to much epidemiological research, but the usual focus is on mobile telephone radiofrequency (RF) exposure only despite cordless RF being very similar. Access to and use of cordless phones were included in the Mobile Radiofrequency Phone Exposed Users Study (MoRPhEUS) of 317 Year 7 students recruited from Melbourne, Australia. Participants completed an exposure questionnaire-87% had a cordless phone at home and 77% owned a mobile phone. There was a statistically significant positive relationship (r = 0.38, p < 0.01) between cordless and mobile phone use. Taken together, this increases total RF exposure and its ratio in high-to-low mobile users. Therefore, the design and analysis of future epidemiological telecommunication studies need to assess cordless phone exposure to accurately evaluate total RF telephone exposure effects.

  1. Economic aspects of comprehensive mechanization of mining operations. [Poland

    Energy Technology Data Exchange (ETDEWEB)

    Zemla, F

    1978-02-01

    The development of mining equipment for longwall mining and effects of mechanization of mining operations on labor productivity and output of underground coal mines in Poland from 1950 to 1976 are discussed. Mining equipment used from 1950 to 1960 (cutters, steel or timber supports, chain conveyors, drilling and blasting), from 1960 to 1970 (cutter loaders, chain conveyors and steel supports), from 1970 to 1976 (shearer loaders, chain conveyors and powered or shield supports) is analyzed. Coal output of faces mined by mechanized equipment increased from 9.7% in 1950 to 63.1% in 1969 and to 87.6% of total coal output in 1976. The total coal output of underground coal mines increased from 99.1 Mt in 1959 to 125.0 Mt in 1969 and 179.3 Mt in 1976. Labor productivity per miner increased from 1.561 t/d in 1959 to 2.529 t/d in 1969 and to 3.433 t/d in 1976.

  2. Natural products for chronic cough: Text mining the East Asian historical literature for future therapeutics.

    Science.gov (United States)

    Shergis, Johannah Linda; Wu, Lei; May, Brian H; Zhang, Anthony Lin; Guo, Xinfeng; Lu, Chuanjian; Xue, Charlie Changli

    2015-08-01

    Chronic cough is a significant health burden. Patients experience variable benefits from over the counter and prescribed products, but there is an unmet need to provide more effective treatments. Natural products have been used to treat cough and some plant compounds such as pseudoephedrine from ephedra and codeine from opium poppy have been developed into drugs. Text mining historical literature may offer new insight for future therapeutic development. We identified natural products used in the East Asian historical literature to treat chronic cough. Evaluation of the historical literature revealed 331 natural products used to treat chronic cough. Products included plants, minerals and animal substances. These natural products were found in 75 different books published between AD 363 and 1911. Of the 331 products, the 10 most frequently and continually used products were examined, taking into consideration findings from contemporary experimental studies. The natural products identified are promising and offer new directions in therapeutic development for treating chronic cough. © The Author(s) 2015.

  3. International symposium on uranium raw material for the nuclear fuel cycle: Exploration, mining, production, supply and demand, economics and environmental issues (URAM-2009). Book of abstracts

    International Nuclear Information System (INIS)

    2009-01-01

    The International Symposium on Uranium Raw Material for the Nuclear Fuel Cycle: Exploration, Mining, Production, Supply and Demand, Economics and Environmental Issues (URAM-2009) addressed all aspects of the uranium fuel cycle, from the availability of raw materials to the long-term sustainability of nuclear power. The revival of the uranium industry in recent years has caused a dramatic increase in uranium exploration and mining activities in several countries. URAM-2009 was intended to bring together scientists, exploration and mining geologists, engineers, operators, regulators and fuel cycle specialists to exchange information and discuss updated research and current issues in uranium geology and deposits, exploration, mining and processing, production economics, and environmental and legal issues. Contributed papers covered uranium markets and economics (including supply and demand); social licensing in the uranium production cycle; uranium exploration (including uranium geology and deposits); uranium mining and processing; environmental and regulatory issues; human resources development. There was a poster session throughout the symposium, as well as an exhibition of topical photographs. A workshop on recent developments in Technical Cooperation Projects relevant to the Uranium Production Cycle area was also organized. On the last day of the symposium, there was an experts' Panel Discussion. The presentations and discussions at URAM-2009 (a) led to a better understanding of the adequacy of uranium sources (both primary and secondary) to meet future demand, (b) provided information on new exploration concepts, knowledge and technologies that will potentially lead to the discovery and development of new uranium resources, (c) described new production technology having the potential to more efficiently and economically exploit new uranium resources; (d) documented the environmental compatibility of uranium production and the overall effectiveness of the final

  4. Uranium mining: Environmental and health impacts

    International Nuclear Information System (INIS)

    Vance, Robert

    2014-01-01

    Producing uranium in a safe and environmentally responsible manner is important not only to the producers and consumers of the product, but also to society at large. Given expectations of growth in nuclear generating capacity in the coming decades - particularly in the developing world - enhancing awareness of leading practice in uranium mining is important. This was the objective of a recent NEA report entitled Managing Environmental and Health Impacts of Uranium Mining, providing a non-technical overview of the significant evolution of uranium mining practices from the time that it was first mined for military purposes until today. (author)

  5. Challenges in radon management at uranium mining operations

    International Nuclear Information System (INIS)

    Paulka, Sharon

    2011-01-01

    Full text: Radon and its radioactive decay products are present some unique challenges to radiation protection professionals working at the uranium mining operations. This paper will detail some examples of these challenges and methods that can be employed to ensure doses to workers and members of the public are kept As Low As Reasonably Achievable (ALARA). Examples will be presented for conventional open pit and underground mining and In Situ recovery operations. One of the challenges facing new operations seeking approval is the demonstration that radon and its radioactive decay products sourced from the operations will not adversely impact local populations, Methodologies recently employed in the most recent environmental impact statements from uranium mining companies seeking approval are reviewed. The International Commission of Radiological Protection are currently reviewing the dose conversion factors used radon and its decay products. The challenges this change will present to uranium mining operators are presented.

  6. Telephone-Directory Program

    Science.gov (United States)

    Vlahos, William

    2005-01-01

    eDirectory is a computer program that makes it possible to view entries in the Jet Propulsion Laboratory (JPL) telephone directory by use of PalmPilot(TradeMark) (or equivalent) personal digital assistants. When one uses eDirectory, a single click causes the downloading of a current copy of the directory (which is updated nightly) from a server. The downloaded directory data can be sorted and searched. The program can append a "JPL" category and save directory information in a file that can be imported into the Palm Desktop(TradeMark) software.

  7. Economic impact of world mining

    International Nuclear Information System (INIS)

    Walser, G.

    2002-01-01

    Mining plays a vital role in the economic development of many countries. The emerging economies are now major players in the production and availability of key commodities such as copper (70%), bauxite (40%), iron ore and precious metals. Mining also has a positive impact on the economy of many countries. Another impact of mining can be measured in terms of employment opportunities and income generation. Commercial scale mining provides employment and skills transfer to more than 2 million workers. The multiplier effect increases this benefit by a factor of between 2 and 5. The World Bank Mining Department has carried out an in-depth study on economic and social impact of mining at the community level in Chile, Peru, Bolivia, Papua New Guinea and Mali. This study demonstrates that there are substantial social and economic benefits to the community. The most positive cases are related to the growth of local small- and micro-enterprise activities. However, mining remains controversial, as true sustainable development is not only a matter of financial flows. Mining has also been associated with a number of economic and social problems. As a result there are questions about the sustainability of the economic outcome of mining. The contribution of mining to sustainable development needs to be considered in terms of economic and technical viability, ecological sustainability and social equity. To achieve this, governments, mining companies and local communities must work together to address these issues. (author)

  8. Environmental effects of uranium exploration and mining

    International Nuclear Information System (INIS)

    Tibbs, N.H.; Rath, D.L.; Donovan, T.K.

    1977-01-01

    Uranium exploration and mining is increasing as the Nation's demand for energy grows. The environmental impacts associated with this exploration and mining are not severe and compare favorably with impacts from the production of other energy resources

  9. Biomass production as renewable energy resource at reclaimed Serbian lignite open-cast mines

    Directory of Open Access Journals (Sweden)

    Jakovljević Milan

    2015-01-01

    Full Text Available The main goal of this paper is the overview of the scope and dynamics of biomass production as a renewable energy source for substitution of coal in the production of electrical energy in the Kolubara coal basin. In order to successfully realize this goal, it was necessary to develop a dynamic model of the process of coal production, overburden dumping and re-cultivation of dumping sites by biomass planting. The results obtained by simulation of the dynamic model of biomass production in Kolubara mine basin until year 2045 show that 6870 hectares of overburden waste dumps will be re-cultivated by biomass plantations. Biomass production modeling point out the significant benefits of biomass production by planting the willow Salix viminalis cultivated for energy purposes. Under these conditions, a 0.6 % participation of biomass at the end of the period of intensive coal production, year 2037, is achieved. With the decrease of coal production to 15 million tons per year, this percentage steeply rises to 1.4 % in 2045. This amount of equivalent tons of coal from biomass can be used for coal substitution in the production of electrical energy. [Projekat Ministarstva nauke Republike Srbije, br. TR 33039

  10. Responsible Development On Areva's Mining Activities - Report 2016

    International Nuclear Information System (INIS)

    2017-01-01

    Constituting the first link in the nuclear fuel cycle, New Areva's mining activities cover research, production and commercialization of uranium throughout the world. New Areva counts among the world's leading producers of uranium enjoying competitive production costs and with mines in operation in Canada, Kazakhstan and Niger. Committed to its role as a responsible mining company, New Areva conducts its mining activities in a manner that fully respects people and the environment, and contributes to the economic development of local regions and their populations. Thanks to a presence spanning five continents, they ensure the long-term supply to customers of uranium for electricity production while maintaining a responsible attitude towards people and the environment. It has a diverse portfolio of both active mines (Canada, Kazakhstan and Niger) and mines under development (Africa). This document is Areva's Mining Activities responsible Development report for 2016. Content: profile (Overview, Keys events, Worldwide presence, Governance and Organization, Uranium market); CSR approach (Top management statement, Risk management, Ethics and human rights, Voluntary initiatives, Materiality); Commitments (Health, occupational safety and radiation protection, Environment and Biodiversity, Social involvement, Commitment to employees, Mining closure, R and D and Innovation); Performance (CSR objectives, Key indicators, Reporting parameters); Case Studies; Annexes (GRI Index)

  11. Spill-Overs of a Resource Boom: Evidence from Zambian Copper Mines

    OpenAIRE

    Alexander Lippert

    2014-01-01

    Do local populations benefit from resource booms? How strong are market linkages between the mining sector and the regional economy? This paper exploits exogenous variation in mine-level production volumes generated by the recent copper boom in Zambia to shed light on these questions. Using a novel dataset, I find robust evidence that an increase in local copper production improves living standards in the surroundings of the mines even for households not directy employed in the mining sector:...

  12. Ecotechnological water quality control in acidic mining lakes. Part 2. Primary production and respiration; Oekotechnologische Steuerung der Gewaesserguete in sauren Tagebauseen. Teil 2. Primaerproduktion und Respiration

    Energy Technology Data Exchange (ETDEWEB)

    Uhlmann, W. [Inst. fuer Wasser und Boden, Dresden (Germany); Nixdorf, B. [Brandenburgisch-Technische Univ., Fakultaet fuer Umweltwissenschaften, Lehrstuhl fuer Gewaesserschutz, Bad Saarow (Germany)

    2002-07-01

    The necessity of neutralizing acidic mining lakes is obvious if the water is to be used in reservoirs (Lohsa II) or for other purposes such as balancing the water budget, fishing or recreation or to be discharged into river systems. Flushing of mining lakes with alkaline surface water from rivers is the moist common method to stabilize the lake structures and to neutralize acidic water. This method is limited in lakes without river coupling or with a high re-acidification potential. The present contribution demonstrates the possibility of biogenic alkalinity production in acidic mining lakes focusing on the main biological processes of primary production and respiration. The influence of biogenic matter transformation on water chemistry in acidic mining lakes is analyzed. Calculation of the extent of aerobic and anaerobic decay of organic matter will be a necessary prerequisite for sustainable sulfate reduction. (orig.)

  13. Conceptual overview and preliminary risk assessment of cryogen use in deep underground mine production

    Science.gov (United States)

    Sivret, J.; Millar, D. L.; Lyle, G.

    2017-12-01

    This research conducts a formal risk assessment for cryogenic fueled equipment in underground environments. These include fans, load haul dump units, and trucks. The motivating advantage is zero-emissions production in the subsurface and simultaneous provision of cooling for ultra deep mine workings. The driving force of the engine is the expansion of the reboiled cryogen following flash evaporation using ambient temperature heat. The cold exhaust mixes with warm mine air and cools the latter further. The use of cryogens as ‘fuel’ leads to much increased fuel transport volumes and motivates special considerations for distribution infrastructure and process including: cryogenic storage, distribution, handling, and transfer systems. Detailed specification of parts and equipment, numerical modelling and preparation of design drawings are used to articulate the concept. The conceptual design process reveals new hazards and risks that the mining industry has not yet encountered, which may yet stymie execution. The major unwanted events include the potential for asphyxiation due to oxygen deficient atmospheres, or physical damage to workers due to exposure to sub-cooled liquids and cryogenic gases. The Global Minerals Industry Risk Management (GMIRM) framework incorporates WRAC and Bow-Tie techniques and is used to identify, assess and mitigate risks. These processes operate upon the competing conceptual designs to identify and eliminate high risk options and improve the safety of the lower risk designs.

  14. Mining manufacturing data for discovery of high productivity process characteristics.

    Science.gov (United States)

    Charaniya, Salim; Le, Huong; Rangwala, Huzefa; Mills, Keri; Johnson, Kevin; Karypis, George; Hu, Wei-Shou

    2010-06-01

    Modern manufacturing facilities for bioproducts are highly automated with advanced process monitoring and data archiving systems. The time dynamics of hundreds of process parameters and outcome variables over a large number of production runs are archived in the data warehouse. This vast amount of data is a vital resource to comprehend the complex characteristics of bioprocesses and enhance production robustness. Cell culture process data from 108 'trains' comprising production as well as inoculum bioreactors from Genentech's manufacturing facility were investigated. Each run constitutes over one-hundred on-line and off-line temporal parameters. A kernel-based approach combined with a maximum margin-based support vector regression algorithm was used to integrate all the process parameters and develop predictive models for a key cell culture performance parameter. The model was also used to identify and rank process parameters according to their relevance in predicting process outcome. Evaluation of cell culture stage-specific models indicates that production performance can be reliably predicted days prior to harvest. Strong associations between several temporal parameters at various manufacturing stages and final process outcome were uncovered. This model-based data mining represents an important step forward in establishing a process data-driven knowledge discovery in bioprocesses. Implementation of this methodology on the manufacturing floor can facilitate a real-time decision making process and thereby improve the robustness of large scale bioprocesses. 2010 Elsevier B.V. All rights reserved.

  15. Optimizing the production of problematic overburden at the Hambach opencast mine; Optimierungen bei der Foerderung problematischer Abraumschichten im Tagebau Hambach

    Energy Technology Data Exchange (ETDEWEB)

    Strunk, Stephan [RWE AG, Essen (Germany). COO/COS - Performance Improvement, International Mining and Generation; Witzel, Joachim [Matrai Kraftwerk AG, Visonta (Hungary)

    2010-01-15

    At the Hambach opencast mine the composition of the overburden changed with the advance of mining activity into new grounds: on some benches the amount of unstable soils (difficult to transport and deposit) increased, on other benches hard concretions (difficult to excavate) appeared and at present form extensive clay-ironstone horizons. Mining, transport and deposit of these two kinds of materials are the current challenges of the Hambach opencast mine. The management of unstable soils has become very complex from a planning and an operational point of view. Furthermore, the large amounts of unstable soils that need to be deposited on this dump may not affect its stability. Finally, clay layers in which hard siderite concretions occur decrease the productivity of bucket wheel excavators and cause damage to these excavators and the downstream conveyor belts. The results of the research and development at Hambach focussing on these issues will be highlighted. (orig.)

  16. Application of Modern Tools and Techniques for Mine Safety & Disaster Management

    Science.gov (United States)

    Kumar, Dheeraj

    2016-04-01

    The implementation of novel systems and adoption of improvised equipment in mines help mining companies in two important ways: enhanced mine productivity and improved worker safety. There is a substantial need for adoption of state-of-the-art automation technologies in the mines to ensure the safety and to protect health of mine workers. With the advent of new autonomous equipment used in the mine, the inefficiencies are reduced by limiting human inconsistencies and error. The desired increase in productivity at a mine can sometimes be achieved by changing only a few simple variables. Significant developments have been made in the areas of surface and underground communication, robotics, smart sensors, tracking systems, mine gas monitoring systems and ground movements etc. Advancement in information technology in the form of internet, GIS, remote sensing, satellite communication, etc. have proved to be important tools for hazard reduction and disaster management. This paper is mainly focused on issues pertaining to mine safety and disaster management and some of the recent innovations in the mine automations that could be deployed in mines for safe mining operations and for avoiding any unforeseen mine disaster.

  17. Management of dry flue gas desulfurization by-products in underground mines. Annual report, October 1994--September 1995

    Energy Technology Data Exchange (ETDEWEB)

    Chugh, Y.P.; Dutta, D.; Esling, S. [and others

    1995-10-01

    On September 30, 1993, the U.S. Department of Energy-Morgantown Energy Technology Center (DOE-METC) and Southern Illinois University at Carbondale (SIUC) entered into a cooperative research agreement entitled {open_quotes}Management of Dry Flue Gas Desulfurization By-Products in Underground Mines{close_quotes} (DE-FC21-93MC30252). Under the agreement Southern Illinois University at Carbondale will develop and demonstrate several technologies for the placement of coal combustion residues (CCBs) in abandoned coal mines, and will assess the environmental impact of such underground CCB placement. This report describes progress in the following areas: environmental characterization, mix development and geotechnical characterization, material handling and system economics, underground placement, and field demonstration.

  18. [Screening for dementia using telephone interviews. An evaluation and reliability study of the Telephone Interview for Cognitive Status (TICS) in its modified German version].

    Science.gov (United States)

    Matrisch, M; Trampisch, U; Klaassen-Mielke, R; Pientka, L; Trampisch, H J; Thiem, U

    2012-04-01

    To assess cognitive impairment or dementia in epidemiologic studies using telephone interviews for data acquisition, valid, reliable and short instruments suitable for telephone administration are required. For the Telephone Interview for Cognitive Status (TICS) in its modified German version, the only instrument used in Germany so far, more data on reliability and practicability are needed. Participants were recruited in the offices of nine primary care physicians. Data from 197 participants (115 females, mean age 78.5±4.1 years) who were tested by telephone and in the office by means of the Mini-Mental State Examination (MMSE) were used for the evaluation. For assessing reliability, a group of 91 participants (55 females, mean age 78.1±4.1 years) was contacted twice during 30 days to be tested during a telephone interview by means of the TICS in its modified German version. The intraclass correlation coefficient (ICC), a measure of reliability, was 0.67 [95% confidence interval (CI): 0.53; 0.77]. The Bland-Altman plot did not reveal any relationship between the variability of the difference between repeated measures and the total amount of the measure. For the overall TICS score, no differences were found between repeated measurements. However, the tasks recall of the word list and counting backwards showed some improvement in the repeated tests. TICS and MMSE showed only moderate correlation, with a correlation coefficient of 0.48 (95% CI: 0.36; 0.58). TICS values were dependent on age and educational level of the person tested. The TICS in its modified German version appears to be of acceptable reliability for the assessment of cognitive impairment during a telephone interview. TICS values depend on age and educational level of the person tested. TICS and MMSE correlate only moderately.

  19. Openings and Closings in Telephone Conversations between Native Spanish Speakers.

    Science.gov (United States)

    Coronel-Molina, Serafin M.

    1998-01-01

    A study analyzed the opening and closing sequences of 11 dyads of native Spanish-speakers in natural telephone conversations conducted in Spanish. The objective was to determine how closely Hispanic cultural patterns of conduct for telephone conversations follow the sequences outlined in previous research. It is concluded that Spanish…

  20. Maintenance of the telephone exchange in building 40

    CERN Multimedia

    2006-01-01

    In order to secure the power supply of the telephone exchange in building 40, a maintenance will be done on the 18th of December from 7.30 am to 8 am. During this intervention, the fixed telephony services in building 39 and 40 will be interrupted. The fixed telephony services in other CERN buildings won't be affected by this maintenance. The mobile telephony services (GSM) won't be affected. For more details, please send your questions to Standard.Telephone@cern.ch Telecom Services IT/CS

  1. Maintenance of CERN telephone exchanges

    CERN Multimedia

    2005-01-01

    A maintenance of CERN telephone exchanges will be performed on 21st, 22nd, 23rd, 24th of September from 7 p.m. to 9 p.m. Disturbances or even interruptions of telephony services may occur during this lapse of time. We apology in advance for any inconveniences that this may cause.

  2. Telephone based weight loss intervention: Relevance for developing countries.

    Science.gov (United States)

    Ayisi Addo, Sandra; Steiner-Asiedu, Matilda

    2018-02-08

    Obesity is a major public health challenge not only for developed but developing countries as well. The World Health Organization recommends the immediate use of effective, efficient and widely accessible weight loss interventions. Telephone based weight loss intervention could provide a cheaper and wider reach of obese participants. Previous systematic reviews on telephone based weight loss interventions either excluded studies that had obese participants with co-morbidities or were silent on their inclusion. Obese/overweight individuals with co-morbidities constitute an important population in any weight loss intervention study due to the strong association of obesity with major chronic health conditions. This paper, reviews the efficacy of telephone based weight loss intervention solely in overweight/obese individuals with obesity related diseases and discusses its relevance for developing countries.

  3. Fuel cell mining vehicles: design, performance and advantages

    International Nuclear Information System (INIS)

    Betournay, M.C.; Miller, A.R.; Barnes, D.L.

    2003-01-01

    The potential for using fuel cell technology in underground mining equipment was discussed with reference to the risks associated with the operation of hydrogen vehicles, hydrogen production and hydrogen delivery systems. This paper presented some of the initiatives for mine locomotives and fuel cell stacks for underground environments. In particular, it presents the test results of the first applied industrial fuel cell vehicle in the world, a mining and tunneling locomotive. This study was part of an international initiative managed by the Fuel Cell Propulsion Institute which consists of several mining companies, mining equipment manufacturers, and fuel cell technology developers. Some of the obvious benefits of fuel cells for underground mining operations include no exhaust gases, lower electrical costs, significantly reduced maintenance, and lower ventilation costs. Another advantage is that the technology can be readily automated and computer-based for tele-remote operations. This study also quantified the cost and operational benefits associated with fuel cell vehicles compared to diesel vehicles. It is expected that higher vehicle productivity could render fuel cell underground vehicles cost-competitive. 6 refs., 1 tab

  4. Siemens' innovative role in mining technology

    Energy Technology Data Exchange (ETDEWEB)

    1990-07-01

    The growth of the mining industry in South Africa has played a decisive role in the industrial development of the country. As mining activities expanded, the need for energy production increased and as of late mining is becoming more mechanised and the need for more energy as well as automation is growing. The origins of Siemens operations in South Africa date back to the humble beginnings of the mining era, when the company provided the first generator and floodlights to illuminate the famous 'Big Hole' of the diamond mine at Kimberley as well as hydro-electric plants in 1895 on the Crocodile River and Blyde River respectively to supply the newly established mines in the Lydenburg district with electric power. 7 figs.

  5. Mining and mining authorities in Saarland 2016. Mining economy, mining technology, occupational safety, environmental protection, statistics, mining authority activities. Annual report

    International Nuclear Information System (INIS)

    2016-01-01

    The annual report of the Saarland Upper Mining Authority provides an insight into the activities of mining authorities. Especially, the development of the black coal mining, safety and technology of mining as well as the correlation between mining and environment are stressed.

  6. The impact of human factor on labor productivity at the mining enterprises

    Directory of Open Access Journals (Sweden)

    Pinigina Galina

    2017-01-01

    Full Text Available The article describes the term “human factor” which implies a person involved in the organizational process in the diversity of his natural and socio-psychological characteristics. The necessity to identify the impact of human factor on labour productivity at the mining enterprises is proved. It is assumed that considering human factor can be one of the ways to increase labour productivity. A research technique of the complex – mechanized team in order to identify the impact of human factor on its productivity is described. Definite research results and analysis which strongly support the assumption are given. The stages at which the human factor should be considered are analyzed. Based on the fact that person's mood determines all his vital functions, the following interpretation of the human factor was propose: to consider the human factor means to take into account everything that might spoil the mood of a person starting from his coming to the place of work till the work is finished. If it is necessary to provide high productivity, take care of the human mind. This thesis does not require proof and justification, it is obvious.

  7. Pumps in mining

    Energy Technology Data Exchange (ETDEWEB)

    1979-01-01

    This article looks at the pump industry as a whole, its historical links with the mining industry, their parallel develop ment, and at the individual manufacturers and pumps, services and auxillary products they have to offer.

  8. Compost production from municipal wastes of Canadian mining towns

    International Nuclear Information System (INIS)

    Jongejan, A.

    1983-01-01

    A summary of results of experiements on composting mumicipal wastes, and an overview of a type of composting process that could be used in small Canadian mining towns are given. The process is a means of waste disposal designed to produce compost. Compost can be used for the revegetation of mine-mill tailings as its sorptive properties complement the chemical action of inorganic fertilizers. The possibility of using compost instead of peat in water pollution-abatement processes can be considered. Difficulties that can be expected if a windrow composting process is continued during the low ambient-temperatures of Canadian winters can be avoided by storing the garbage-sewage mixture as hydraulically-compacted briquettes. Degradation of the briquettes takes place during mild-temperature periods without producing the foul odors of heaped garbage. A tentative plan for composting plant is presented as an illustration of the applicatin of the experimental results in a practical process. Because the process is a means of waste disposal, costs have to be divided between the municipality and the mining industry

  9. Radioactivity measurements in Egyptian phosphate mines and their significance in the occupational exposure of mine workers

    International Nuclear Information System (INIS)

    Bigu, J.; Hussein, Mohamed I.; Hussein, A.Z.

    2000-01-01

    Radioactivity measurements have been conducted in nine underground phosphate mines in the Egyptian Eastern Desert in order to estimate the occupational radiation exposure of mine workers in those mining sites. Measurements were carried out of airborne radon ( 222 Rn) and its short-lived decay products (progeny) and thoron ( 220 Rn) progeny, as well as γ-radiation from mine walls, ceilings and floors. Comparison of experimental data and theoretical predictions showed partial agreement between these two sets of data. This result is partly attributed to the complex layout of these mines which causes undesirable ventilation conditions, such as recirculation airflow patterns which could not be adequately identified or quantified. The radiation data obtained were used to estimate the Maximum Annual Dose (MAD), and other important occupational radiation exposure variables. These calculations indicate that in eight out of the nine mines surveyed, the MAD exceeded (by a factor of up to 7) the maximum recommended level by ICRP-60. A number of suggestions are made in order to reduce the MAD in the affected mines

  10. Tumour risk associated with use of cellular telephones or cordless desktop telephones

    OpenAIRE

    Hardell, Lennart; Mild, Kjell Hansson; Carlberg, Michael; Söderqvist, Fredrik

    2006-01-01

    Abstract Background The use of cellular and cordless telephones has increased dramatically during the last decade. There is concern of health problems such as malignant diseases due to microwave exposure during the use of these devices. The brain is the main target organ. Methods Since the second part of the 1990's we have performed six case-control studies on this topic encompassing use of both cellular and cordless phones as well as other exposures. Three of the studies concerned brain tumo...

  11. Perceptions and Realities in Modern Uranium Mining - Extended Summary

    International Nuclear Information System (INIS)

    2014-01-01

    Uranium mining and milling has evolved significantly over the years. By comparing currently leading approaches with outdated practices, the report demonstrates how uranium mining can be conducted in a way that protects workers, the public and the environment. Innovative, modern mining practices combined with strictly enforced regulatory standards are geared towards avoiding past mistakes made primarily during the early history of the industry when maximising uranium production was the principal operating consideration. Today's leading practices in uranium mining aim at producing uranium in an efficient and safe manner that limits environmental impacts to acceptable standards. As indicated in the report, the collection of baseline environmental data, environmental monitoring and public consultation throughout the life cycle of the mine enables verification that the facility is operating as planned, provides early warning of any potentially adverse impacts on the environment and keeps stakeholders informed of developments. Leading practice also supports planning for mine closure before mine production is licensed to ensure that the mining lease area is returned to an environmentally acceptable condition. The report highlights the importance of mine workers being properly trained and well equipped, as well as that of ensuring that their work environment is well ventilated so as to curtail exposure to radiation and hazardous materials and thereby minimise health impacts. (authors)

  12. Biosorption Of Heavy Metals From Mining Influenced Water Onto Chitin Products

    Science.gov (United States)

    Mining influenced water (MIW) emanating from mine sites poses a major environmental concern due to its impact on water contamination caused by low pH and the presence of high concentrations of toxic metals. Chitorem SC-20® (raw crushed crab shells containing 40% w/w C...

  13. High radon exposure in a Brazilian underground coal mine

    International Nuclear Information System (INIS)

    Veiga, L H S; Melo, V; Koifman, S; Amaral, E C S

    2004-01-01

    The main source of radiation exposure in most underground mining operations is radon and radon decay products. The situation of radon exposure in underground mining in Brazil is still unknown, since there has been no national regulation regarding this exposure. A preliminary radiological survey in non-uranium mines in Brazil indicated that an underground coal mine in the south of Brazil had high radon concentration and needed to be better evaluated. This paper intends to present an assessment of radon and radon decay product exposure in the underground environment of this coal mining industry and to estimate the annual exposure to the workers. As a product of this assessment, it was found that average radon concentrations at all sampling campaign and excavation sites were above the action level range for workplaces of 500-1500 Bq m -3 recommended by the International Commission on Radiological Protection-ICRP 65. The average effective dose estimated for the workers was almost 30 times higher than the world average dose for coal miners

  14. Profitable mining with the help of radiation technology

    International Nuclear Information System (INIS)

    Quevenco, Rodolfo

    2015-01-01

    During the boom years of the 2000s, the global mining industry expanded quickly, with many countries and companies investing large amounts of money in efforts to increase production and satisfy a rapidly growing global economy hungry for natural resources. Now, with lower commodity prices, decreasing ore quality and higher production costs, keeping these mines open means streamlining operations and improving productivity. Radiotracers and nucleonic gauges are among the techniques that enable the industry to achieve this increased efficiency.

  15. Estimating benthic secondary production from aquatic insect emergence in streams affected by mountaintop removal coal mining, West Virginia USA

    Science.gov (United States)

    Mountaintop removal and valley fill (MTR/VF) coal mining recountours the Appalachian landscape, buries headwater stream channels, and degrades downstream water quality. The goal of this study was to compare benthic community production estimates, based on seasonal insect emergen...

  16. Selection of an Appropriate Mechanized Mining Technical Process for Thin Coal Seam Mining

    Directory of Open Access Journals (Sweden)

    Chen Wang

    2015-01-01

    Full Text Available Mechanized mining technical process (MMTP related to the control method of the shearer is a vital process in thin coal seam mining operations. An appropriate MMTP is closely related to safety, productivity, labour intensity, and efficiency. Hence, the evaluation of alternative MMTP is an important part of the mining design. Several parameters should be considered in MMTP evaluation, so the evaluation is complex and must be compliant with a set of criteria. In this paper, two multiple criteria decision-making (MCDM methods, Analytic Hierarchy Process (AHP and Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE, were adopted for this evaluation. Then, the most appropriate MMTP for a thin coal seam working face was selected in China.

  17. Uranium mining operations in Spain

    International Nuclear Information System (INIS)

    Rios, J.-M.; Arnaiz, J.; Criado, M.; Lopez, A.

    1995-01-01

    The Empresa Nacional del Uranio, SA (ENUSA) was founded in 1972 to undertake and develop the industrial and procurement activities of the nuclear fuel cycle in Spain. Within the organisation of ENUSA, the Uranium Division is directly responsible for the uranium mining and production operations that have been carried out since 1973 in the area of Ciudad Rodrigo in the province of Salamanca. These activities are based on open pit mining, heap leaching and a hydrometallurgical plant (Elefante) for extracting uranium concentrates from the ore. This plant was shut down in 1993 and a new plant was started up on the same site (Quercus) with a dynamic leaching process. The nominal capacity of the new plant is 950 t U 3 O 8 per year. Because of the historically low uranium prices which have recently prevailed, the plant is currently running at a strategic production rate of 300 t U 3 O 8 per year. From 1981 to 1990, in the area of La Haba (Badajoz province), ENUSA also operated a uranium production site, based on open pit mining, and an experimental extraction plant (Lobo-G). ENUSA is currently decommissioning these installations. This paper describes innovations and improvements that ENUSA has recently introduced in the field of uranium concentrates production with a view to cutting production costs, and to improving the decommissioning and site restoration processes in those sites where production is being shut down or resources have been worked out. (author)

  18. Uranium exploration, mining and ore enrichment techniques

    International Nuclear Information System (INIS)

    Fuchs, H.D.; Wentzlau, D.

    1985-01-01

    The paper describes the different types of uranium deposits and their importance. It is shown that during the present depressed uranium market situation, mainly high grade deposits such as unconformity-related deposits can be mined economically. The different successive exploration steps are outlined including methods used for uranium. Uranium mining does not greatly differ from normal mining, but the uranium metallurgy needs its own specialized but already classic technology. Only a relative small amount of uranium can be expected from projects where uranium is produced by in situ leach methods or by extraction from phosphoric acid. A short summary of investment costs and operating costs is given for an average uranium mine. The last chapter deals with the definition of different reserve categories and outlines the uranium reserves of the western world including the uranium production (1983) and the expected uranium production capacity for 1985 and 1990. (orig.) [de

  19. Testing a Model of Functional Impairment in Telephone Crisis Support Workers.

    Science.gov (United States)

    Kitchingman, Taneile A; Wilson, Coralie J; Caputi, Peter; Wilson, Ian; Woodward, Alan

    2017-11-01

    It is well known that helping professionals experience functional impairment related to elevated symptoms of psychological distress as a result of frequent empathic engagement with distressed others. Whether telephone crisis support workers are impacted in a similar way is not currently reported in the literature. The purpose of this study was to test a hypothesized model of factors contributing to functional impairment in telephone crisis support workers. A national sample of 210 telephone crisis support workers completed an online survey including measures of emotion regulation, symptoms of general psychological distress and suicidal ideation, intentions to seek help for symptoms, and functional impairment. Structural equation modeling was used to test the fit of the data to the hypothesized model. Goodness-of-fit indices were adequate and supported the interactive effects of emotion regulation, general psychological distress, suicidal ideation, and intentions to seek help for ideation on functional impairment. These results warrant the deliberate management of telephone crisis support workers' impairment through service selection, training, supervision, and professional development strategies. Future research replicating and extending this model will further inform the modification and/or development of strategies to optimize telephone crisis support workers' well-being and delivery of support to callers.

  20. Emergency telephone consultations: a new course for medical students.

    Science.gov (United States)

    Schaufelberger, Mireille; Harris, Michael; Frey, Peter

    2012-12-01

    Using the telephone for consultations is now common practice. Although there is a clear need for specific training for telephone consultations, it is uncommon for it to be taught in medical school. A practical course on emergency telephone consultations (ECTs) was designed for the medical degree course at the University of Bern Medical School. During the module, each of the volunteer fifth-year medical students had to perform two simulated telephone consultations. Medical students in their first year of medical school acted as simulated patients (SPs), and they gave immediate feedback to the participants. Nineteen per cent of fifth-year students voluntarily undertook the ETC course. The course was rated 'very informative' by 68 per cent of the participants, and 'informative' by 32 per cent. Ninety-four per cent of the attendees recorded a personal learning gain, and 68 per cent suggested that the course should be obligatory. All the participants thought that the SPs played their roles realistically. In their rating of the ETC, the fifth-year students gave it a mean mark of 5.5 (out of a maximum of 6), suggesting that they thought it had been very successful. Students became aware of their need for ETC training through the course itself, and they recommended that it should be obligatory. The ETC pilot received a highly positive response from lead clinicians who anticipated a rising number of telephone consultations, and who have to deal with trainees who have not been taught about how to deal with ETCs. As a result, the Faculty of Medicine decided to make the course obligatory. © Blackwell Publishing Ltd 2012.

  1. Telephone Care Management of Fall Risk:: A Feasibility Study.

    Science.gov (United States)

    Phelan, Elizabeth A; Pence, Maureen; Williams, Barbara; MacCornack, Frederick A

    2017-03-01

    Care management has been found to be more effective than usual care for some chronic conditions, but few studies have tested care management for prevention of elder falls. This study aimed to assess the feasibility and preliminary efficacy of telephone care management of older adults presenting for medical attention due to a fall. The setting was an independent practice association in western Washington serving 1,300 Medicare Advantage-insured patients. Patients aged ≥65 years treated for a fall in an emergency department or their primary care provider's office were contacted via telephone by a care manager within 48 hours of their fall-related visit and invited to participate in a telephone-administered interview to identify modifiable fall risk factors and receive recommendations and follow-up to address identified risk factors. Data from care manager records, patient medical records, and healthcare claims for the first 6 months (November 2009-April 2010) of program implementation were analyzed in 2011. The feasibility of screening and management of fall risk factors over the telephone and the effect on medically attended falls were assessed. Twenty-two patients eligible for fall care management were reached and administered the protocol. Administration took 15-20 minutes and integrated easily with the care manager's other responsibilities. Follow-through on recommendations varied, from 45% for those for whom exercise participation was recommended to 100% for other recommendations. No medically attended falls occurred over 6 months of follow-up. Telephone care management of fall risk appears feasible and may reduce falls requiring medical attention. Copyright © 2016 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

  2. GYNOTEL: telephone advice to gynaecological surgical patients after discharge.

    Science.gov (United States)

    Caljouw, Monique A A; Hogendorf-Burgers, Marja E H J

    2010-12-01

    To investigate in surgical gynaecological patients the types of health problems arising or persisting up to six weeks after discharge and the effectiveness of telephone advice. The decreasing length of hospital stay has increased the need for specific instructions about the postdischarge period. Telephone advice could be a valuable tool to address this problem. To our knowledge, postdischarge health problems and the value of telephone advice have not been investigated among gynaecological patients. Randomised controlled trial. Gynaecological patients expected to stay in the ward longer than 24 hour were invited to participate. A pilot study showed that wound healing, pain, mobility, urination, defecation and vaginal bleeding were the most common health problems postdischarge. Based on that information, guidelines were formulated that were used by trained nurses to give telephone advice to the intervention group (n=235), in addition to the usual care. The control group of gynaecological patients (n=233) received usual care only. Of all 468 participants, about 50% were operated for general gynaecology. At discharge, wound pain (56%), mobility problems (54%) and constipation (27%) were the most frequently mentioned problems in both groups. Participants who completely followed the advice with regard to wound healing (p=0.02), pain (p=0.01), vaginal bleeding (p=0.03) and mobility (p=0.04) experienced greater improvement than participants who did not follow, or only partly followed, the advice. The telephone advice appears to make a significant contribution to help gynaecological surgical patients to solve or reduce their postdischarge health problems. The positive effect of such advice can be interpreted as an improvement in the quality of life of the postoperative gynaecological patient. © 2010 Blackwell Publishing Ltd.

  3. Data mining concepts, methods and applications in management and engineering design

    CERN Document Server

    Yin, Yong; Tang, Jiafu; Zhu, JianMing

    2011-01-01

    Data Mining introduces in clear and simple ways how to use existing data mining methods to obtain effective solutions for a variety of management and engineering design problems. Data Mining is organised into two parts: the first provides a focused introduction to data mining and the second goes into greater depth on subjects such as customer analysis. It covers almost all managerial activities of a company, including: * supply chain design, * product development, * manufacturing system design, * product quality control, and * preservation of privacy. Incorporating recent developments of data

  4. The current situation of uranium mining in Hungary

    International Nuclear Information System (INIS)

    Erdi-Krausz, G.

    1997-01-01

    The paper describes the history of uranium production in Hungary. It focuses on the Mecsek Ore Mining Company, now known as Mecsekuran Limited, and its relationship with the Hungarian Government. From the start of uranium production in 1963 until May 1989 all production was exported to the Soviet Union under a bilateral contract. In exchange the Soviet Union agreed to provide fabricated fuel for the future Hungarian nuclear power plant. In May 1989 the Government of Hungary announced closure of its uranium mining operations because of the high cost of production. The paper describes the history of events since 1989, as well as the current plans to terminate all uranium production by 31 December 1997. The Mecsek Mountains lie in the southern part of Hungary, west from the Danube, about 30 km from the former Yugoslavian border, and north from the city of Pecs. Its eastern side is built up from medieval limestone and dolomites, while the western part is from sandstone and clay from the geological Paleozoic. In the eastern part high quality cokeable coal has been mined for more than 200 years, east from the city of Pecs; and in the western part uranium ore was discovered and the mining began only a few decades ago. (author)

  5. Low-Income Demand for Local Telephone Service: Effects of Lifeline and Linkup

    OpenAIRE

    Daniel Ackerberg; Michael Riordan; Gregory Rosston; Bradley Wimmer

    2008-01-01

    A comprehensive data set on local telephone service prices is used to evaluate the effect of Lifeline and Linkup programs on the telephone penetration rates of low-income households in the United States. Lifeline and Linkup programs respectively subsidize the monthly subscription and initial installation charges of eligible low-income households. Telephone penetration rates are explained by an estimated nonlinear function of local service characteristics (including subsidized prices) and the ...

  6. Strategies for Suicide Intervention by Telephone.

    Science.gov (United States)

    Hinson, Jennifer

    1982-01-01

    Describes techniques helpful for telephone counselors dealing with suicide intervention, including reinstating control, reducing anxiety through problem clarification, and providing hope by active listening and tolerance of dispositions. The use of time-outs and detective work is also discussed. (JAC)

  7. Determination of internal exposure doses of the personnel of uranium-mining company due to radon isotopes decay products

    International Nuclear Information System (INIS)

    Sevostyanov, V.N.

    2004-01-01

    This work carries out a determination of individual doses of internal exposure of the staff of the uranium-mining company in Kazakhstan due to radon decay products. The company extracts uranium by in-situ leaching. After leaching, uranium is sorbed from a solution in facilities where the staff is located. The state of three uranium mines was analyzed. The dose determination was conducted in tune with the proposed method by using integral alpha-tracking detectors to identify the content of 222 Rn and express appliances to identify the content of radio-active aerosols in air of the working area for determination the equilibrium coefficient. The measurements were performed within one year. The work produced the results in average annual values of radon and thoron decay products activity concentration and variation, equilibrium coefficient variation, and so-called expressive-to-integral value conversion factor. The obtained personnel's individual radiation doses due to radon exposure for this period lie within the range of < 1 mSv/year. (author)

  8. Survey on the Use of Mobile Telephone for Micro and Small ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Survey on the Use of Mobile Telephone for Micro and Small Business ... In Ghana, as in other developing countries, mobile telephones are pervasive, and used ... to announce that the first call for applications for the new Early Career Women.

  9. Managing environmental and health impacts of uranium mining

    Energy Technology Data Exchange (ETDEWEB)

    Vance, R.E.; Cameron, R., E-mail: robert.vance@oecd.org, E-mail: ron.cameron@oecd.org [OECD Nuclear Energy Agency (France)

    2014-07-01

    As the raw material that fuels nuclear power plants that generate significant amounts of electricity with full life cycle carbon emissions as low as renewable energy sources, uranium is a valuable commodity. Yet uranium mining remains controversial, principally because of environmental and health impacts created when mining was undertaken by governments to meet Cold War strategic requirements. Uranium mining is conducted under significantly different circumstances today. Since the era of military production, societal expectations of environmental protection and the safety of workers and the public have evolved as the outcomes of the early era of mining became apparent, driving changes in regulatory oversight and mining practices. Key aspects of leading practice uranium mining are presented (conventional worker health and safety, worker radiation protection, public health and safety, water quality, tailings and waste rock management) and compared with historic practices to demonstrate the scale of differences. The application of additional aspects of uranium mine life cycle management (public consultation, environmental impact assessment, analysis of socio-economic impacts/benefits, environmental monitoring, financial assurance, product transport, security and safeguards, emergency planning and knowledge transfer), introduced as the industry matured, enhance overall management practices for the long term. Results from several case studies show that improved management of key aspects of uranium mining, combined with the incorporation of new life cycle parameters, have transformed the industry into the most regulated and arguably one of the safest and environmentally responsible types of mining in the world. (author)

  10. Gesturing on the Telephone: Independent Effects of Dialogue and Visibility

    Science.gov (United States)

    Bavelas, Janet; Gerwing, Jennifer; Sutton, Chantelle; Prevost, Danielle

    2008-01-01

    Speakers often gesture in telephone conversations, even though they are not visible to their addressees. To test whether this effect is due to being in a dialogue, we separated visibility and dialogue with three conditions: face-to-face dialogue (10 dyads), telephone dialogue (10 dyads), and monologue to a tape recorder (10 individuals). For the…

  11. Telephone switchboard closure | 19 December

    CERN Multimedia

    2014-01-01

    Exceptionally, the telephone switchboard will close at 4 p.m. on Friday, 19 December, instead of the usual time of 6 p.m., to allow time for closing all systems properly before the annual closure. Therefore, switchboard operator assistance to transfer calls from/to external lines will stop. All other phone services will run as usual.

  12. Responsible Development of Areva's Mining Activities - 2010 Report

    International Nuclear Information System (INIS)

    2011-07-01

    Areva's mining activities place it among the world leaders in uranium production. The main objective of Areva's mining activities is ensuring uranium supply over the long term to produce nuclear power while emitting less CO 2 , reducing risks to people and the environment and contributing to the development of areas where mining activities take place. Areva's mining activities span five continents. This diversified portfolio allows the group to carry out exploration, project development and production activities in various geopolitical and technological contexts with the support of its staff's multi-cultural backgrounds. This document is the first Responsible Development report of Areva's Mining Activities. Content: 1 - All about Areva's Mining Activities (Interview with Sebastien de Montessus, General Director of Areva's Mining Activities, Ongoing Progress, The Core of Areva's Mining Activities Work); 2 - The Foundation of Areva's Mining Activities Approach (Values and Principles, Governance, Commitments); 3 - Reporting on Areva's Mining Activities (Scope, Relevance of Indicators, Outlook); 4 - Being a Responsible Mining Stakeholder (Actions, Reducing Industrial Risks, Ensuring the Protection of Workers and Populations, Consuming Water and Energy Resources in a Rational Way, Preserving Biodiversity, Managing Waste Rock and Mine Tailings over Time, Sustainable Presence, Contribution to Social Development); 5 - Glossary

  13. Determination of heat production zones at open-cast mine dump

    International Nuclear Information System (INIS)

    Schreck, M.; Nishigaki, M.; Glaser, H.R.; Christoph, G.; Grosswig, S.; Hurtig, E.; Kasch, M.; Kuhn, K.

    1998-01-01

    The chemical processes and their thermal effects taking place inside a dump of an open-cast mine (Cospuden) during a reclamation process were investigated. Fiber-optic-distributed-temperature sensing (DTS) was applied together with a soil ground water monitoring system (SGM-System). An optical fiber was mounted at the entire length of a double-pipe SGM-System. The temperature was measured monthly, along the depth of 50 m, with a spatial resolution of 0.5 m. The system was utilized for the localization of heat production zones in the subsurface, for the determination of the temperature variation's penetration depth from the surface into the soil of the dump and for the determination of the influence of the SGM-System on the subsurface temperature balance. The results were compared with a heat transport model and then interpreted

  14. CSIR Division of Mining Technology annual review 1993/94

    Energy Technology Data Exchange (ETDEWEB)

    1994-01-01

    The Division of Mining Technology of the CSIR (Council for Scientific and Industrial Research) works in partnership with the mining industry to solve problems threatening the health, safety and well-being of the workforce, and the productivity of mining operations through the development and implementation of knowledge and technology. The annual review describes the Division's research projects in the following field: rock engineering (for gold, platinum and coal mining); mining environment; occupational hygiene; surface environment; and mining equipment and systems (systems and equipment, orebody information, coal mining and causes of accidents). Details are also given of the Division's publications, research and consultancy services and information centre.

  15. Speech perception and communication ability over the telephone by Mandarin-speaking children with cochlear implants.

    Science.gov (United States)

    Wu, Che-Ming; Liu, Tien-Chen; Wang, Nan-Mai; Chao, Wei-Chieh

    2013-08-01

    (1) To understand speech perception and communication ability through real telephone calls by Mandarin-speaking children with cochlear implants and compare them to live-voice perception, (2) to report the general condition of telephone use of this population, and (3) to investigate the factors that correlate with telephone speech perception performance. Fifty-six children with over 4 years of implant use (aged 6.8-13.6 years, mean duration 8.0 years) took three speech perception tests administered using telephone and live voice to examine sentence, monosyllabic-word and Mandarin tone perception. The children also filled out a questionnaire survey investigating everyday telephone use. Wilcoxon signed-rank test was used to compare the scores between live-voice and telephone tests, and Pearson's test to examine the correlation between them. The mean scores were 86.4%, 69.8% and 70.5% respectively for sentence, word and tone recognition over the telephone. The corresponding live-voice mean scores were 94.3%, 84.0% and 70.8%. Wilcoxon signed-rank test showed the sentence and word scores were significantly different between telephone and live voice test, while the tone recognition scores were not, indicating tone perception was less worsened by telephone transmission than words and sentences. Spearman's test showed that chronological age and duration of implant use were weakly correlated with the perception test scores. The questionnaire survey showed 78% of the children could initiate phone calls and 59% could use the telephone 2 years after implantation. Implanted children are potentially capable of using the telephone 2 years after implantation, and communication ability over the telephone becomes satisfactory 4 years after implantation. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  16. Integration of vertical and in-seam horizontal well production analyses with stochastic geostatistical algorithms to estimate pre-mining methane drainage efficiency from coal seams: Blue Creek seam, Alabama.

    Science.gov (United States)

    Karacan, C Özgen

    2013-07-30

    Coal seam degasification and its efficiency are directly related to the safety of coal mining. Degasification activities in the Black Warrior basin started in the early 1980s by using vertical boreholes. Although the Blue Creek seam, which is part of the Mary Lee coal group, has been the main seam of interest for coal mining, vertical wellbores have also been completed in the Pratt, Mary Lee, and Black Creek coal groups of the Upper Pottsville formation to degasify multiple seams. Currently, the Blue Creek seam is further degasified 2-3 years in advance of mining using in-seam horizontal boreholes to ensure safe mining. The studied location in this work is located between Tuscaloosa and Jefferson counties in Alabama and was degasified using 81 vertical boreholes, some of which are still active. When the current long mine expanded its operation into this area in 2009, horizontal boreholes were also drilled in advance of mining for further degasification of only the Blue Creek seam to ensure a safe and a productive operation. This paper presents an integrated study and a methodology to combine history matching results from vertical boreholes with production modeling of horizontal boreholes using geostatistical simulation to evaluate spatial effectiveness of in-seam boreholes in reducing gas-in-place (GIP). Results in this study showed that in-seam wells' boreholes had an estimated effective drainage area of 2050 acres with cumulative production of 604 MMscf methane during ~2 years of operation. With horizontal borehole production, GIP in the Blue Creek seam decreased from an average of 1.52 MMscf to 1.23 MMscf per acre. It was also shown that effective gas flow capacity, which was independently modeled using vertical borehole data, affected horizontal borehole production. GIP and effective gas flow capacity of coal seam gas were also used to predict remaining gas potential for the Blue Creek seam.

  17. Human detection for underground autonomous mine vehicles using thermal imaging

    CSIR Research Space (South Africa)

    Dickens, JS

    2011-07-01

    Full Text Available Underground mine automation has the potential to increase safety, productivity and allow the mining of lower-grade resources. In a mining environment with both autonomous robots and humans, it is essential that the robots are able to detect...

  18. Optimized mine ventilation on demand (OMVOD)

    International Nuclear Information System (INIS)

    Anderson, M.

    2009-01-01

    This paper provided an overview of the Optimized Mine Ventilation on Demand (OMVOD) system that is being installed at Xstrata Nickel Rim South Project and at Vale Inco's Totten Mine in Sudbury. The OMVOD system is designed to dynamically monitor and control air quality and quantity in real time and dilute and remove hazardous substances including diesel particulate matter (DPM), carbon monoxide (CO) and nitrous oxide (NO 2 ). It is also designed to control the thermal environment and provide ventilation for humans as well as mobile equipment engine combustion according to regulatory standards. The paper highlighted the OMVOD system optimization of energy, air quality measurement and control and production management of the mines through real time dynamic automation. Topics of discussion included real-time tracking and monitoring of diesel equipment; real-time tracking of underground miners; real-time evaluation of mine ventilation networks; and real-time control and optimization of ventilation equipment. ABB and Simsmart Technologies have joined forces to provide underground mining customers with a ventilation optimization solution. Simsmart's OMVOD provides proven real time/dynamic automation technology to significantly reduce energy costs, provide health and safety benefits as well as major capital cost savings while realizing an increase in production.

  19. Effects of Using Licensed Practical Nurses to Assist with Telephone Consultation Management

    National Research Council Canada - National Science Library

    Wiley, Jennifer L

    2006-01-01

    .... The study compared means of pre- and post-implementation provider overall job satisfaction, provider satisfaction with the telephone consult process, average daily hours providers spent on telephone...

  20. Treatment of acidic mine water at uranium mine No. 711 by barium chloride-sludge recycle-fractional neutralization process

    International Nuclear Information System (INIS)

    Yang Chaowen; Wang Benyi; Ding Tongsen; Zhong Pingru; Liao Yongbing; Li Xiaochu; Lu Guohua

    1994-01-01

    The barium chloride-sludge recycle-fractional neutralization process for disposal of acidic mine water at Uranium Mine No. 711 was checked through laboratory and enlarged tests and one-year industrial trial-run. The results showed that the presented technology can meet the requirements of production and environmental protection

  1. 1994 Asia/Pacific mining yearbook and suppliers' source

    Energy Technology Data Exchange (ETDEWEB)

    1994-01-01

    Contains a series of articles covering various aspects of the mining and minerals industries of Australia, New Zealand, Malaysia, Indonesia, Thailand, Laos, Vietnam, the Philippines, Russia, China, Myanmar, India and Papua New Guinea. Also contains the 1994 mining products and services buyer's guide, and the 1994 mining suppliers' source directory which provides information on the companies listed in the buyer's guide.

  2. Economics of mining law

    Science.gov (United States)

    Long, K.R.

    1995-01-01

    Modern mining law, by facilitating socially and environmentally acceptable exploration, development, and production of mineral materials, helps secure the benefits of mineral production while minimizing environmental harm and accounting for increasing land-use competition. Mining investments are sunk costs, irreversibly tied to a particular mineral site, and require many years to recoup. Providing security of tenure is the most critical element of a practical mining law. Governments owning mineral rights have a conflict of interest between their roles as a profit-maximizing landowner and as a guardian of public welfare. As a monopoly supplier, governments have considerable power to manipulate mineral-rights markets. To avoid monopoly rent-seeking by governments, a competitive market for government-owned mineral rights must be created by artifice. What mining firms will pay for mineral rights depends on expected exploration success and extraction costs. Landowners and mining firms will negotlate respective shares of anticipated differential rents, usually allowing for some form of risk sharing. Private landowners do not normally account for external benefits or costs of minerals use. Government ownership of mineral rights allows for direct accounting of social prices for mineral-bearing lands and external costs. An equitable and efficient method is to charge an appropriate reservation price for surface land use, net of the value of land after reclamation, and to recover all or part of differential rents through a flat income or resource-rent tax. The traditional royalty on gross value of production, essentially a regressive income tax, cannot recover as much rent as a flat income tax, causes arbitrary mineral-reserve sterilization, and creates a bias toward development on the extensive margin where marginal environmental costs are higher. Mitigating environmental costs and resolving land-use conflicts require local evaluation and planning. National oversight ensures

  3. Study of mined storage caverns

    International Nuclear Information System (INIS)

    1975-06-01

    All available information concerning 75 mined storage caverns as well as the investigative techniques utilized to determine the feasibility of a cavern site is presented. Potential new storage caverns may be for products such as high or low vapor pressure petroleum products, other chemical products, aid industrial or nuclear waste

  4. Injection of alkaline ashes into underground coal mines for acid mine drainage abatement

    International Nuclear Information System (INIS)

    Aljoe, W.W.

    1996-01-01

    The injection of alkaline coal combustion waste products into abandoned underground coal mines for acid mine drainage (AMD) abatement has obvious conceptual appeal. This paper summarizes the findings of the baseline hydrogeologic and water quality evaluations at two sites--one in West Virginia and one in Maryland--where field demonstrations of the technique are being pursued in cooperative efforts among State and Federal agencies and/or private companies. The West Virginia site produces severe AMD from three to seven AMD sources that are spaced over about a 1.2 km stretch of the down-dip side of the mine workings. By completely filling the most problematic portion of the mine workings with coal combustion ashes, the State expects that the costs and problems associated with AMD treatment will be greatly reduced. At the Maryland site, it is expected that the AMD from a relatively small target mine will be eliminated completely by filling the entire mine void with a grout composed of a mixture of fly ash, fluidized-bed combustion ash, and flue gas desulfurization sludge. This project will also demonstrate the potential cost-effectiveness of the technique at other sites, both for the purpose of AMD remediation and control of land subsidence

  5. Environmental Radiation Studies in Mn-Mines at Wadi Naseib Area, South West Sinai, Egypt

    International Nuclear Information System (INIS)

    Said, A.F.; El-Galy, M.M.; El-Feky, M.G.; Mohamed, M.S.

    2005-01-01

    The activity concentrations of radon and thoron decay products beside the gamma dose rate of the naturally occurring radionuclides were measured and calculated in two underground manganese mines, M1 and M2 at Wadi Naseib area in Sinai. Radon daughters and thoron daughters working levels were calculated using Rolle method after measuring the alpha activity. The measurements were taken at different stations inside the two mines. The radiation levels were calculated at seven stations inside the first mine and at ten stations inside the second mine. It was found that, the radon daughter products have major effect while the thoron daughter products and -dose have the minor effect in U/G mines. These measurements will be considered in perspective with the ventilation required to lower the radon decay products inside the mine in order to establish adequate working level that conform with proper radiation safety requirements for workers inside these mines

  6. Data mining mobile devices

    CERN Document Server

    Mena, Jesus

    2013-01-01

    With today's consumers spending more time on their mobiles than on their PCs, new methods of empirical stochastic modeling have emerged that can provide marketers with detailed information about the products, content, and services their customers desire.Data Mining Mobile Devices defines the collection of machine-sensed environmental data pertaining to human social behavior. It explains how the integration of data mining and machine learning can enable the modeling of conversation context, proximity sensing, and geospatial location throughout large communities of mobile users

  7. 75 FR 13471 - Telephone Consumer Protection

    Science.gov (United States)

    2010-03-22

    ... Consumer Protection Act (TCPA) that would harmonize those rules with the Federal Trade Commission's (FTC's... Consumer Protection Act (TCPA) that would harmonize those rules with the Federal Trade Commission's (FTC's...] Telephone Consumer Protection AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: In...

  8. Bucket wheel excavator performances at Neyveli lignite mine

    Energy Technology Data Exchange (ETDEWEB)

    Kumaraswamy, S; Mozumdar, B K

    1987-03-01

    Bucket-wheel excavators have been in use at the Neyveli Lignite Mine in the State of Tamil Nadu, India, since the early nineteen-sixties. The mining environment has been particularly harsh for BWE application. The adverse influencing factors are the hardness of the over-burden formation, high abrasivity of rock and artesian ground water conditions. In this paper, the performances of the BWEs at Neyveli have been statistically analysed to determine the effects of physico-mechanical properties of overburden, blasting and rainfall on machine productivity, availability, wear-and-tear of bucket teeth, power consumption, production efficiency and cost of mining. An empirical relationship between the production efficiency, defined as the ratio of actual production rate to the theoretical one, and the bench height and width, height of slices, specific cutting resistance of the overburden material and its clay content, consumption of explosives, and conveyor length has been established.

  9. Epidemiological Safety Surveillance of Cellular Telephones in the US (invited paper)

    International Nuclear Information System (INIS)

    Dreyer, N.A.; Loughlin, J.E.; Rothman, K.J.

    1999-01-01

    In 1994 a surveillance programme was initiated to monitor the effects of exposure to the human head from radiofrequency waves, such as those emitted from handheld cellular telephones. Cellular carriers contributed information about 1.5 million telephone account holders, their phones and two months of data on minutes used and number of calls. Cellular telephone manufacturers provided data that allowed classification of phones as analogue or digital and a handheld or mobile (car or bag) for 67% of the phones. Thus far 1,021,767 individuals have been identified who had at least one active cellular telephone account in 1994 and/or 1995 and who used either a handheld (41%) or a mobile (59%) phone during the study period, but not both. Seventy-four per cent of the cohort had used their cellular phone for ≥2 years, and 30% for ≥3 years. (author)

  10. The financing of new mining ventures

    International Nuclear Information System (INIS)

    Etheredge, D.A.; Lilja, J.R.

    1983-01-01

    Various options are presented for tackling the problem in mining today of the high capital costs required for a new mine combined with the front end exposure that the exploiters face. Equity finance from the producers, private investors, oil companies, consumers and governments is discussed as well as loan finance from export credit agencies, international agencies, production-related loans, leasing and commercial bank loans. The future in financing mining is outlined and it is proposed that the future will lie in smaller projects financed primarily with equity. (U.K.)

  11. On the imaging of land mines using 3+ - e- pair production

    International Nuclear Information System (INIS)

    Crawford, J.F.; Arkuszewski, J.; Ritt, S.; Suwannakachorn, D.

    1998-01-01

    The problem of disposing of abandoned land mines is very serious in many countries. Anti-personnel land mines (APM's) contain as little as 50 gram or less of explosive, which is enough to take off an adult's foot, or to kill a child. Anti-tank mines (ATM's), designed to penetrate the armour on the bottom of a tank, are much larger. Current techniques of finding them are not adequate. All practical high explosives contain 20% or more of nitrogen, which has a thermal neutron cross section of 75 mbarn, producing γ's of up to 10.8 MeV. The idea of using this property to detect explosives has been tested by others, but because of backgrounds is unable to find anything less than several hundred grams of explosive. The refinement proposed here is to convert the γs, track the resulting e + - e - pairs in MWPC's, and use the information to locate the γ source, i.e. the mine. The directional information provided should reduce the backgrounds considerably. Result of an experimental test are presented, and possibilities for the future discussed. (author)

  12. Mine Water Treatment in Hongai Coal Mines

    Science.gov (United States)

    Dang, Phuong Thao; Dang, Vu Chi

    2018-03-01

    Acid mine drainage (AMD) is recognized as one of the most serious environmental problem associated with mining industry. Acid water, also known as acid mine drainage forms when iron sulfide minerals found in the rock of coal seams are exposed to oxidizing conditions in coal mining. Until 2009, mine drainage in Hongai coal mines was not treated, leading to harmful effects on humans, animals and aquatic ecosystem. This report has examined acid mine drainage problem and techniques for acid mine drainage treatment in Hongai coal mines. In addition, selection and criteria for the design of the treatment systems have been presented.

  13. 47 CFR 22.925 - Prohibition on airborne operation of cellular telephones.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Prohibition on airborne operation of cellular... CARRIER SERVICES PUBLIC MOBILE SERVICES Cellular Radiotelephone Service § 22.925 Prohibition on airborne operation of cellular telephones. Cellular telephones installed in or carried aboard airplanes, balloons or...

  14. Recruiting to Clinical Trials on the Telephone - a randomized controlled trial

    DEFF Research Database (Denmark)

    Foss, Kim Thestrup; Kjærgaard, Jesper; Stensballe, Lone Graff

    2016-01-01

    BACKGROUND: Informed consent is an essential element of clinical research. Obtaining consent, however, may be challenging. The use of the telephone for giving information and obtaining consent may be practical but little formal research has been done. METHODS: We examined the use of the telephone...

  15. Domestic uranium mining and milling

    International Nuclear Information System (INIS)

    Anon.

    1983-01-01

    A field hearing was held in Riverton, Wyoming on the erosion of the state's uranium industry as production and capital investment have declined and inventories have continued to rise because of a shift to foreign suppliers. The result has been serious unemployment in Wyoming and a decline in uranium mines from 5400 in 1980 to the present 1200. The seven witnesses spoke for the mining industry and state and federal government. Among the issues raised were mining regulations and the cancellation of nuclear rejects which have impacted the health of the industry. Additional statements and a report supplied for the record follow their testimony

  16. AN OPERATIONAL MANAGEMENT MODEL FOR A COAL MINING PRODUCTION UNIT

    Directory of Open Access Journals (Sweden)

    R. Visser

    2012-01-01

    Full Text Available

    ENGLISH ABSTRACT: The coal mining industry faces increased pressure for higher quality coal at lower cost and increased volumes. To satisfy these requirements the industry needs technically skilled first line supervisors with operational management skills. Most first line supervisors possess the necessary technical, but not the required operational management skills. Various operational management philosophies, describing world-class operational management practices exist; however, it is not possible to implement these philosophies as-is in a mining environment due to the various differences between manufacturing and mining. The solution is to provide an operational management model, adapted from these philosophies, to first line supervisors in the coal mining industry.

    AFRIKAANSE OPSOMMING: Die steenkoolmynbedryf ervaar groeiende druk van die mark vir hoër gehalte steenkool, laer koste en verhoogde volumes. Om hierdie behoefte te bevredig benodig die myn tegniesgeskoolde eerstelyntoesighouers met bedryfsbestuursvaardighede. Ongelukkig beskik die meeste toesighouers wel oor die nodige tegniese kennis, maar nie die nodige bedryfsbestuursvaardighede nie. Daar bestaan verskeie bedryfsbestuursfilosofieë wat wêreldklas bedryfsbestuurspraktyke omskryf. Dit is egter nie moontlik om die filisofieë net so in die mynbedryf te implimenteer nie a.g.v. die verskille tussen vervaardiging en mynbou. Die oplossing is om ‘n bedryfsbestuurmodel wat op hierdie filosofieë geskoei is, aan eerstelyntoesighouers in die steenkoolbedryf te verskaf.

  17. Mine Water Treatment in Hongai Coal Mines

    OpenAIRE

    Dang Phuong Thao; Dang Vu Chi

    2018-01-01

    Acid mine drainage (AMD) is recognized as one of the most serious environmental problem associated with mining industry. Acid water, also known as acid mine drainage forms when iron sulfide minerals found in the rock of coal seams are exposed to oxidizing conditions in coal mining. Until 2009, mine drainage in Hongai coal mines was not treated, leading to harmful effects on humans, animals and aquatic ecosystem. This report has examined acid mine drainage problem and techniques for acid mine ...

  18. Restoring Sustainable Forests on Appalachian Mined Lands for Wood Products, Renewable Energy, Carbon Sequestration, and Other Ecosystem Services

    Energy Technology Data Exchange (ETDEWEB)

    Burger, James A

    2005-07-20

    The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. We are currently estimating the acreage of lands in Virginia, West Virginia, Kentucky, Ohio, and Pennsylvania mined under SMCRA and reclaimed to non-forested post-mining land uses that are not currently under active management, and therefore can be considered as available for carbon sequestration. To determine actual sequestration under different forest management scenarios, a field study was installed as a 3 x 3 factorial in a random complete block design with three replications at each of three locations, one each in Ohio, West Virginia, and Virginia. The treatments included three forest types (white pine, hybrid poplar, mixed hardwood) and three silvicultural regimes (competition control, competition control plus tillage, competition control plus tillage plus fertilization). Each individual treatment plot is 0.5 acres. Each block of nine plots is 4.5 acres, and the complete installation at each site is 13.5 acres. During the reporting period we determined that by grinding the soil samples to a finer particle size of less than 250 μm (sieve No. 60), the effect of mine soil coal particle size on the extent to which these particles will be oxidized during the thermal treatment of the carbon partitioning procedure will be eliminated, thus making the procedure more accurate and precise. In the second phase of the carbon sequestration project, we focused our attention on determining the sample size required for carbon accounting on grassland mined fields in order to achieve a desired accuracy and precision of the final soil organic carbon (SOC) estimate. A mine land site quality classification scheme was developed and some field-testing of the methods of implementation was completed. The classification model

  19. Evaluation of a wireless audio streaming accessory to improve mobile telephone performance of cochlear implant users.

    Science.gov (United States)

    Wolfe, Jace; Morais Duke, Mila; Schafer, Erin; Cire, George; Menapace, Christine; O'Neill, Lori

    2016-01-01

    The objective of this study was to evaluate the potential improvement in word recognition in quiet and in noise obtained with use of a Bluetooth-compatible wireless hearing assistance technology (HAT) relative to the acoustic mobile telephone condition (e.g. the mobile telephone receiver held to the microphone of the sound processor). A two-way repeated measures design was used to evaluate differences in telephone word recognition obtained in quiet and in competing noise in the acoustic mobile telephone condition compared to performance obtained with use of the CI sound processor and a telephone HAT. Sixteen adult users of Nucleus cochlear implants and the Nucleus 6 sound processor were included in this study. Word recognition over the mobile telephone in quiet and in noise was significantly better with use of the wireless HAT compared to performance in the acoustic mobile telephone condition. Word recognition over the mobile telephone was better in quiet when compared to performance in noise. The results of this study indicate that use of a wireless HAT improves word recognition over the mobile telephone in quiet and in noise relative to performance in the acoustic mobile telephone condition for a group of adult cochlear implant recipients.

  20. 75 FR 78269 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Telephone...

    Science.gov (United States)

    2010-12-15

    ... for OMB Review; Comment Request; Telephone Point of Purchase Survey ACTION: Notice. SUMMARY: The... information collection request (ICR) titled, ``Telephone Point of Purchase Survey,'' to the Office [email protected] . SUPPLEMENTARY INFORMATION: The purpose of the Telephone Point of Purchase Survey is to...

  1. CONFUSION WITH TELEPHONE NUMBERS

    CERN Multimedia

    Telecom Service

    2002-01-01

    he area code is now required for all telephone calls within Switzerland. Unfortunately this is causing some confusion. CERN has received complaints that incoming calls intended for CERN mobile phones are being directed to private subscribers. This is caused by mistakenly dialing the WRONG code (e.g. 022) in front of the mobile number. In order to avoid these problems, please inform your correspondents that the correct numbers are: 079 201 XXXX from Switzerland; 0041 79 201 XXXX from other countries. Telecom Service

  2. Coal Mine Methane in Russia [Russian Version

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-07-01

    This paper discusses coal mine methane emissions (CMM) in the Russian Federation and the potential for their productive utilisation. It highlights specific opportunities for cost-effective reductions of CMM from oil and natural gas facilities, coal mines and landfills, with the aim of improving knowledge about effective policy approaches.

  3. Undermining the myths about small-scale mining

    NARCIS (Netherlands)

    Verbrugge, B.L.P.; Besmanos, B.

    2015-01-01

    Along with many other countries, in recent decades the Philippines –have witnessed a dramatic expansion of small-scale mining (SSM), mostly (but not exclusively)in the form of small-scale gold mining. As can be seen in the graph below (figure 1), official gold production fromSSM has

  4. Grants Mining District

    Science.gov (United States)

    The Grants Mineral Belt was the focus of uranium extraction and production activities from the 1950s until the late 1990s. EPA is working with state, local, and federal partners to assess and address health risks and environmental effects of the mines

  5. Underground coal mining - methods, equipment developments and trends

    Energy Technology Data Exchange (ETDEWEB)

    Singhal, R

    1988-12-01

    Underground mines are truly beginning to accept the so-called 'high tech' technology evident in other industries. Automation, remote control and robotics have taken an added significance. Wireless communication, mine-wide equipment health and performance monitoring, and transmission of data from deeper levels to surface is moving towards becoming the norm. There is emphasis on developing and applying continuous mining systems, as well as on modifying cyclical discontinuous methods to continuous systems. Multi-purpose equipment is also being developed. Technology transfer is playing its role - equipment and systems from surface coal mining are being applied to underground mining and vice-versa. At the American Mining Congress Exhibition held in Chicago in April 1988, a variety of equipment for underground mining was displayed including coal face equipment such as shearer loaders, conveyors and powered supports, and equipment for room-and-pillar coal mining. The trend continues to be towards high power machines equipped with a variety of electronics and sensors, safety devices, and alarm systems. Ancillary equipment on display covered a variety of cutting drums, cutting tools, conveying equipment and so on. In room-and-pillar mining, the overall emphasis was on moving away from the cyclical nature of the work. Transportation by shuttle cars must be replaced by continuous transport systems such as conveyors. Experience from Australia has shown that the application of continuous haulage and breaker line supports has permitted a doubling of production from room-and-pillar systems. Production levels of 3,000tpd have already been achieved, and 4,000tpd is considered achievable.

  6. Mine Water Treatment in Hongai Coal Mines

    Directory of Open Access Journals (Sweden)

    Dang Phuong Thao

    2018-01-01

    Full Text Available Acid mine drainage (AMD is recognized as one of the most serious environmental problem associated with mining industry. Acid water, also known as acid mine drainage forms when iron sulfide minerals found in the rock of coal seams are exposed to oxidizing conditions in coal mining. Until 2009, mine drainage in Hongai coal mines was not treated, leading to harmful effects on humans, animals and aquatic ecosystem. This report has examined acid mine drainage problem and techniques for acid mine drainage treatment in Hongai coal mines. In addition, selection and criteria for the design of the treatment systems have been presented.

  7. Assessment of real exposure to GSM mobile telephones using the SYRPOM

    International Nuclear Information System (INIS)

    Picard, D.; Fouquet, L.; Chauvin, S.

    2013-01-01

    A mobile telephone user's exposure to the radio-frequency electromagnetic field depends heavily on the power their telephone radiates, which can vary widely according to requests from the base station. This study presents the design and development of a system called System for Radiated Power Measurement (SYRPOM), which measures the power radiated by a mobile telephone. This study also describes the tests carried out on the system itself and gives the results of two measuring campaigns it has been possible to perform in this way. The first such campaign consisted of assessing the mean power received by a typical mobile telephone user carrying out various activities. The second campaign was aimed at (1) comparing the mean radiated power when stationary and when moving and (2) assessing and contrasting different models of handsets in terms of the mean radiated power. The SYRPOM has proved to be a flexible, easy-to-use high-performance and innovative tool for carrying out this kind of studies. (authors)

  8. USING WEB MINING IN E-COMMERCE APPLICATIONS

    Directory of Open Access Journals (Sweden)

    Claudia Elena Dinucă

    2011-09-01

    Full Text Available Nowadays, the web is an important part of our daily life. The web is now the best medium of doing business. Large companies rethink their business strategy using the web to improve business. Business carried on the Web offers the opportunity to potential customers or partners where their products and specific business can be found. Business presence through a company web site has several advantages as it breaks the barrier of time and space compared with the existence of a physical office. To differentiate through the Internet economy, winning companies have realized that e-commerce transactions is more than just buying / selling, appropriate strategies are key to improve competitive power. One effective technique used for this purpose is data mining. Data mining is the process of extracting interesting knowledge from data. Web mining is the use of data mining techniques to extract information from web data. This article presents the three components of web mining: web usage mining, web structure mining and web content mining.

  9. 78 FR 78389 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Telephone...

    Science.gov (United States)

    2013-12-26

    ... for OMB Review; Comment Request; Telephone Point of Purchase Survey ACTION: Notice. SUMMARY: The... request (ICR) revision titled, ``Telephone Point of Purchase Survey,'' to the Office of Management and... seeks to make minor modifications to the Telephone Point of Purchase Survey (TPOPS) and extend its PRA...

  10. Mining for oil in Japan. Report No. 89. [Higashiyama

    Energy Technology Data Exchange (ETDEWEB)

    1947-09-03

    Mining for petroleum by underground methods was undertaken in 1940 by the Japanese in the Higashiyama oil field, Niigata Prefecture, as a means of obtaining additional oil from the sands unrecoverable by wells from the surface. The oil is obtained by gravitational drainage through mine openings and is transported through a gathering system, collected in a sump at the bottom of the main shaft and pumped to the surface. Total production of crude oil for the first six years of operation of the Higashiyama mine was 24,914 kiloliters (156,710 barrels). Average production per meter of gallery for the period 1941-46 was 2.69 kiloliters, equivalent to five barrels per foot. Operations were undertaken without careful studies of the residual oil content of the reservoir sands, or a correct understanding of the producing possibilities of the property. Recoveries leave much to be desired for profitable operation. The results achieved, however, appear to have been successful in view of limited natural oil resources and the great need for petroleum products. The work accomplished in pioneering oil-mining in Japan has provided a background of valuable knowledge and experience which will be beneficial in carrying out future mining projects. Other shallow fields, such as Niitsu, Hibiki, and the Takeishi structure present possibilities of applying underground mining methods to recover additional oil.

  11. Validation of a telephone screening test for Alzheimer's disease.

    Science.gov (United States)

    Camozzato, Ana Luiza; Kochhann, Renata; Godinho, Claudia; Costa, Amanda; Chaves, Marcia L

    2011-03-01

    Financial constraints, mobility issues, medical conditions, crime in local areas can make cognitive assessment difficult for elders and telephone interviews can be a good alternative. This study was carried out to evaluate the reliability, validity and clinical utility of a Brazilian telephone version of the Mini Mental State Examination (Braztel-MMSE) in a community sample of healthy elderly participants and AD patients. The MMSE and the Braztel-MMSE were applied to 66 AD patients and 67 healthy elderly participants. The test-retest reliability was strong and significant (r = .92, p = .01), and the correlation between the Braztel-MMSE and the MMSE were significant (p = .01) and strong (r = .92). The general screening ability of the Braztel-MMSE was high (AUC = 0.982; CI95% = 0.964-1.001). This telephone version can therefore be used as a screening measure for dementia in older adults that need neuropsychological screening and cannot present for an evaluation.

  12. Post-operative telephone review is cost-effective and acceptable to patients.

    LENUS (Irish Health Repository)

    Gray, R T

    2012-02-01

    INTRODUCTION: Patients undergoing selective minor emergency and elective procedures are followed up by a nurse-led structured telephone review six weeks post-operatively in our hospital. Our study objectives were to review patients\\' satisfaction, assess cost-effectiveness and compare our practice with other surgical units in Northern Ireland (NI). PATIENTS AND METHODS: Completed telephone follow-up forms were reviewed retrospectively for a three-year period and cost savings calculated. Fifty patients were contacted prospectively by telephone using a questionnaire to assess satisfaction of this follow-up. A postal questionnaire was sent to 68 general and vascular surgeons in NI, assessing individual preferences for patient follow-up. RESULTS: A total of 1378 patients received a telephone review from September 2005 to September 2008. One thousand one hundred and seventy-seven (85.4%) were successfully contacted, while 201 (14.6%) did not respond despite multiple attempts. One hundred and forty-seven respondents (10.7%) required further outpatient follow-up, thereby saving 1231 outpatient reviews, equivalent to pound41,509 per annum. Thirty-nine (78%) patients expected post-operative follow-up, with 29 (58%) expecting this in the outpatient department. However, all patients were satisfied with the nurse-led telephone review. Fifty-three (78%) consultants responded. Those who always, or occasionally, review patients post-operatively varies according to the operation performed, ranging from 2.2% appendicectomy patients to 40.0% for varicose vein surgery. CONCLUSION: Current practice in NI varies, but a significant proportion of patients are not routinely reviewed. This study confirmed that patients expect post-operative follow-up. A nurse-led telephone review service is acceptable to patients, cost-effective and reduces the number of unnecessary outpatient reviews.

  13. Utilization of mine tailings as partial cement replacement

    DEFF Research Database (Denmark)

    Sigvardsen, Nina Marie; Nielsen, M.R.; Ottosen, Lisbeth M.

    2017-01-01

    Depositing mine tailings entail major economic costs and negative environmental impacts. Thus finding an alternative to depositing is of interest. This study focused on the use of mine tailings as partial cement replacement, thereby preventing depositing the mine tailings. At the same time......, such use would reduce the CO2 emission related to the production of cement. Mine tailings from two different mines Zinkgruvan (Sweden) and Nalunaq (Greenland) were both tested as 5 and 10 % cement replacement. All mortar specimens with mine tailings had lower compressive strength compared to a reference...... compared to a specimen containing a 10 % replacement of cement with coal fly ash, commonly used in Denmark. The compressive strength of specimens containing mine tailings exceeded the compressive strength of the specimen containing coal fly ash, indicating further the amorphous content of volcanic decent...

  14. CONFUSION WITH TELEPHONE NUMBERS

    CERN Multimedia

    Telecom Service

    2002-01-01

    The area code is now required for all telephone calls within Switzerland. Unfortunately this is causing some confusion. CERN has received complaints that incoming calls intended for CERN mobile phones are being directed to private subscribers. This is caused by mistakenly dialing the WRONG code (e.g. 022) in front of the mobile number. In order to avoid these problems, please inform your correspondents that the correct numbers are: 079 201 XXXX from Switzerland; 0041 79 201 XXXX from other countries. Telecom Service  

  15. Using underground mine Karst water to solve water supply problem in underground mine

    Energy Technology Data Exchange (ETDEWEB)

    Wang, W. [Wanbei Mining Administration (China). Liuqiao No. 2 Mine

    1995-05-01

    There is a very rich karst water resource under the Liuqiao No. 2 underground mine. Under normal mining conditions the drainage is 546 m{sup 3}/h while the maximum drainage is up to 819 m{sup 3}/h. If water inrush occurred from a broken zone of a fault or a sinkhole of the karst, the flow could be up to 3269 m{sup 3}/h. The karst water is of good quality and high in pressure. The water head pressure at -400 m level is about 3.5 MPa. To save mine construction cost, it was decided that the water supply for coal production equipment, mining operation and mine fire control was to be changed from the surface to the underground by drilling a water well to tap the karst water resource. A water well with a depth of 63.3 m was drilled in the -400 m transportation roadway. The diameter of the well is 127 mm and it has a casing pipe with a diameter of 108 mm which is connected to the water supply pipeline. The pressure of the water supply is measured at 23.5 MPa and the water flow rate is 252 m{sup 3}/h. The establishment of the water supply system has achieved great cost saving for Liuqiao No. 2 Mine. 2 figs.

  16. Interaction of mining activities and aquatic environment: A review from Greek mine sites.

    Science.gov (United States)

    Vasileiou, Eleni; Kallioras, Andreas

    2016-04-01

    In Greece a significant amount of mineral and ore deposits have been recorded accompanied by large industrial interest and a long mining history. Today many active and/or abandoned mine sites are scattered within the country; while mining activities take place in different sites for exploiting various deposits (clay, limestone, slate, gypsum, kaolin, mixed sulphide ores (lead, zinc, olivine, pozzolan, quartz lignite, nickel, magnesite, aluminum, bauxite, gold, marbles etc). The most prominent recent ones are: (i) the lignite exploitation that is extended in the area of Ptolemais (Western Macedonia) and Megalopolis (Central Peloponnese); and (ii) the major bauxite deposits located in central Greece within the Parnassos-Ghiona geotectonic zone and on Euboea Island. In the latter area, significant ores of magnesite were exploited and mixed sulphide ores. Centuries of intensive mining exploitation and metallurgical treatment of lead-silver deposits in Greece, have also resulted in significant abandoned sites, such as the one in Lavrion. Mining activities in Lavrio, were initiated in ancient times and continued until the 1980s, resulting in the production of significant waste stockpiles deposited in the area, crucial for the local water resources. Ιn many mining sites, environmental pressures are also recorded after the mine closure to the aquatic environment, as the surface waters flow through waste dump areas and contaminated soils. This paper aims to the geospatial visualization of the mining activities in Greece, in connection to their negative (surface- and/or ground-water pollution; overpumping due to extensive dewatering practices) or positive (enhanced groundwater recharge; pit lakes, improvement of water budget in the catchment scale) impacts on local water resources.

  17. Data mining in pharma sector: benefits.

    Science.gov (United States)

    Ranjan, Jayanthi

    2009-01-01

    The amount of data getting generated in any sector at present is enormous. The information flow in the pharma industry is huge. Pharma firms are progressing into increased technology-enabled products and services. Data mining, which is knowledge discovery from large sets of data, helps pharma firms to discover patterns in improving the quality of drug discovery and delivery methods. The paper aims to present how data mining is useful in the pharma industry, how its techniques can yield good results in pharma sector, and to show how data mining can really enhance in making decisions using pharmaceutical data. This conceptual paper is written based on secondary study, research and observations from magazines, reports and notes. The author has listed the types of patterns that can be discovered using data mining in pharma data. The paper shows how data mining is useful in the pharma industry and how its techniques can yield good results in pharma sector. Although much work can be produced for discovering knowledge in pharma data using data mining, the paper is limited to conceptualizing the ideas and view points at this stage; future work may include applying data mining techniques to pharma data based on primary research using the available, famous significant data mining tools. Research papers and conceptual papers related to data mining in Pharma industry are rare; this is the motivation for the paper.

  18. Comparing the co-evolution of production and test code in open source and industrial developer test processes through repository mining

    NARCIS (Netherlands)

    Van Rompaey, B.; Zaidman, A.E.; Van Deursen, A.; Demeyer, S.

    2008-01-01

    This paper represents an extension to our previous work: Mining software repositories to study coevolution of production & test code. Proceedings of the International Conference on Software Testing, Verification, and Validation (ICST), IEEE Computer Society, 2008; doi:10.1109/ICST.2008.47

  19. 30 CFR 57.22203 - Main fan operation (I-C mines).

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Main fan operation (I-C mines). 57.22203... Standards for Methane in Metal and Nonmetal Mines Ventilation § 57.22203 Main fan operation (I-C mines). Main fans shall be operated continuously while ore production is in progress. ...

  20. Effects of a Mail and Telephone Intervention on Breast Health Behaviors

    Science.gov (United States)

    Bowen, Deborah J.; Powers, Diane

    2010-01-01

    This study evaluated a mail and telephone intervention to improve breast health behaviors while maintaining quality of life. Women recruited from the general public were randomized to a stepped-intensity intervention consisting of mailings, telephone calls, and counseling (if requested or appropriate given a woman's genetic risk for breast cancer)…

  1. In situ solution mining technique

    International Nuclear Information System (INIS)

    Learmont, R.P.

    1978-01-01

    A method of in situ solution mining is disclosed in which a primary leaching process employing an array of 5-spot leaching patterns of production and injection wells is converted to a different pattern by converting to injection wells all the production wells in alternate rows

  2. Radiation safety assessment of mobile telephone base stations

    International Nuclear Information System (INIS)

    Mohd Yusof Mohd Ali; Mohd Anuar Majid; Mohd Amirul Nizam

    2002-01-01

    Mobile telephone is fast getting popular among users and in fact it has become one of the fastest selling electronic products in the world. More base stations are expected to be built to meet such high demands and this has caused great concerned among members of the public, especially those living close to the stations, about the potential harmful health effects of radiofrequency (RF) radiation produced by such facilities. A project was initiated by MINT in early 2000 with aims to assess the radiation levels present in the areas around the base stations and to establish baseline data on the pattern and trend of the radiation emission from each different set up of the facilities. This paper highlights some basics facts about mobile telephones and preliminary findings of the project. The assessment has been carried out at 16 base station sites and the results indicate that the radiation levels present around these sites are very low. Their broadband readings vary between below the detection limit of 0.3μWatts/cm 2 to 11 μWatts/cm 2 and they are comparable to normal background radiation present in places away from any base stations. The highest level observed was 1.5% of the exposure limit recommended for members of the public. However, locations at close distance in front of the the antenna can be very serious in term of radiation exposure since the radiation level here can easily exceed the permissible exposure limit for public. Safety precaution needs to be taken when entering these areas and they should be out of bound for members of the public. (Author)

  3. Microwave radiation safety assessment around mobile telephone base station (MTBS) in Peninsular Malaysia

    International Nuclear Information System (INIS)

    Mohd Yusof Mohd Ali; Rozaimah Abd Rahim; Roha Tukimin; Mohd Anuar Abd Majid; Mohamad Amirul Nizam Mohamad Thari; Ahmad Fazli Ahmad Sanusi; Roslan Md Dan; Sahirudden Mohd Nor

    2006-01-01

    Mobile telephone is one of the fastest popular consumer product introduced in the market. Since more people are using mobile telephone, the number of mobile telephone base station (MTBS) in Malaysia had also increased in order to provide a better coverage services to consumer. The antennas that are required for the mobile (or cellular) telephone network are located at MTBS. This antenna emits radio frequency (RF) and microwave (MW) radiation. Due to the concerns that has been raised by the people that are living or working nearby to MTBS about the possibility of adverse health effects that might occur due to the exposure of this radiation, a project of microwave radiation safety assessment around MTBS by MINT was carried out (September 2003 - January 2006). It was involved with 128 MTBS from three biggest service providers in Malaysia. This assessment is required to establish a baseline data in term of pattern and trend of the radiation emission from the facilities as well as to develop a public confident. In this paper, it will describe the fact that radiation is critical to the MTBS system and without the radiation, the MTBS system is functionless. It will also highlight the result of the assessment's work that has been carried out by MINT around MTBS mounted on the rooftops and towers. The average reading varies between the detection limit of the instrument 2 ( 2 (7.204 V/m). The highest average reading corresponds to about 2.0% of the Suruhanjaya Komunikasi dan Multimedia Malaysia (MCMC) exposure limit for public. The finding of this measurement confirms that the presence of RF and MW radiation in public accessible area around the base station was very low and comparable to the radiation levels in other places away from MTBS. There is also no evidence, from any laboratory or epidemiology studies that the exposure to RF energy levels recommended limits has any health significance for humans. (Author)

  4. Bundling the value of discharge telephone calls and leader rounding.

    Science.gov (United States)

    Setia, Nina; Meade, Christine

    2009-03-01

    Discharge telephone calls made by hospital staff provide invaluable opportunities to prevent adverse events, improve quality of care, and increase patient satisfaction. Similarly, the effect of rounding on patients can improve clinical quality and improve both patient and staff satisfaction. The author discusses how the combination of implementing both nurse leader rounding and discharge telephone calls simultaneously produced powerful positive outcomes in satisfaction and patient quality of care.

  5. Weighting Strategies for Combining Data from Dual-Frame Telephone Surveys: Emerging Evidence from Australia

    Directory of Open Access Journals (Sweden)

    Baffour Bernard

    2016-09-01

    Full Text Available Until quite recently, telephone surveys have typically relied on landline telephone numbers. However, with the increasing popularity and affordability of mobile phones, there has been a surge in households that do not have landline connections. Additionally, there has been a decline in the response rates and population coverage of landline telephone surveys, creating a challenge to collecting representative social data. Dual-frame telephone surveys that use both landline and mobile phone sampling frames can overcome the incompleteness of landline-only telephone sampling. However, surveying mobile phone users introduces new complexities in sampling, nonresponse measurement and statistical weighting. This article examines these issues and illustrates the consequences of failing to include mobile-phone-only users in telephone surveys using data from Australia. Results show that there are significant differences in estimates of populations’ characteristics when using information solely from the landline or mobile telephone sample. These biases in the population estimates are significantly reduced when data from the mobile and landline samples are combined and appropriate dual-frame survey estimators are used. The optimal choice of a dual-frame estimation strategy depends on the availability of good-quality information that can account for the differential patterns of nonresponse by frame.

  6. Draft environmental statement. Homestake Mining Company: Homestake Mining Company Pitch Project (Saguache County, Colorado)

    International Nuclear Information System (INIS)

    1978-01-01

    The draft concerns the proposed issuance of approvals, permits, and licenses to the Homestake Mining Company for the implementation of the Pitch Project. The Pitch Project consists of mining and milling operations involving uranium ore deposits located in Gunnison National Forest, Saguache County, Colorado. Mining of uranium ore will take place over an estimated period of 20 years; a mill with a nominal capacity of 544 metric tons per day (600 tons per day) will be constructed and operated as long as ore is available. The waste material (tailings) from the mill, also produced at a rate of about 544 metric tons per day (600 tons per day), will be buried onsite at the head end of a natural valley. The environmental impacts are summarized in sections on the existing environment, applicant's proposed mining and milling operation, environmental effects of accidents, monitoring programs, productivity, commitment of resources, alternatives, and cost-benefit evaluation

  7. A novel method for estimating methane emissions from underground coal mines: The Yanma coal mine, China

    Science.gov (United States)

    Ji, Zhong-Min; Chen, Zhi-Jian; Pan, Jie-Nan; Niu, Qing-He

    2017-12-01

    As the world's largest coal producer and consumer, China accounts for a relatively high proportion of methane emissions from coal mines. Several estimation methods had been established for the coal mine methane (CMM) emission. However, with large regional differences, various reservoir formation types of coalbed methane (CBM) and due to the complicated geological conditions in China, these methods may be deficient or unsuitable for all the mining areas (e.g. Jiaozuo mining area). By combing the CMM emission characteristics and considering the actual situation of methane emissions from underground coal mine, we found that the methane pre-drainage is a crucial reason creating inaccurate evaluating results for most estimation methods. What makes it so essential is the extensive pre-drainage quantity and its irrelevance with annual coal production. Accordingly, the methane releases were divided into two categories: methane pre-drainage and methane release during mining. On this basis, a pioneering method for estimating CMM emissions was proposed. Taking the Yanma coal mine in the Jiaozuo mining area as a study case, the evaluation method of the pre-drainage methane quantity was established after the correlation analysis between the pre-drainage rate and time. Thereafter, the mining activity influence factor (MAIF) was first introduced to reflect the methane release from the coal and rock seams around where affected by mining activity, and the buried depth was adopted as the predictor of the estimation for future methane emissions. It was verified in the six coal mines of Jiaozuo coalfield (2011) that the new estimation method has the minimum errors of 12.11%, 9.23%, 5.77%, -5.20%, -8.75% and 4.92% respectively comparing with other methods. This paper gives a further insight and proposes a more accurate evaluation method for the CMM emissions, especially for the coal seams with low permeability and strong tectonic deformation in methane outburst coal mines.

  8. Safety and health in the Canadian mine environment

    International Nuclear Information System (INIS)

    Grenier, M.G.; Hardcastle, S.G.

    1990-01-01

    CANMET's Mining Research Laboratories (MRL) in Elliot Lake and Bell's Corners, Ontario, with the cooperation of the mining industry, have contributed to improving environmental conditions in underground and surface mining and milling operations. The extent of collaboration and efforts vary widely from long-term, multi-million dollar projects between several interested parties to smaller projects involving one laboratory and a single mining operation. This paper gives examples of such collaborative efforts and potential future directions as they apply to mine ventilation analysis using tracer gas techniques, optimization of mine ventilation network efficiency using real-time monitoring and controlled recirculation (heat saving), respirable dust and radiation sampling and control techniques, diesel emission control using regenerative ceramic filters and, the control of sulphide dust explosions and resulting sulphur dioxide production. (27 refs., 6 tabs., 3 figs.)

  9. Responsible Mining: The Key to Profitable Resource Development

    Directory of Open Access Journals (Sweden)

    Robert Goodland

    2012-08-01

    Full Text Available Better mining corporations want to adopt “Responsible Mining”. This paper outlines the essentials of responsible mining and offers a guide to corporations who want become responsible. Eight principles are discussed: (1 Social and environmental assessment, (2 Transparency, (3 Acceptance by stakeholders, (4 Food production trumps questionable mining, (5 Compliance with international standards, (6 Corporate prequalification, (7 Insurance and performance bonds, and (8 Royalties, taxes and fees. These principles are followed by a discussion of No-Go Zones to mining: why some types of sites should be off-limits to all mining. The Annex on Compensatory Offsets suggests that, on occasion, there may be exceptions to a No-Go Zone.

  10. Mining in the Federal Republic of Germany 2012. Mining industries and statistics. 64th year 2013. Documentation

    International Nuclear Information System (INIS)

    2013-11-01

    The annual report of the series ''The mining industry in the Federal Republic of Germany - Mountain Economics and Statistics'' is published by the Federal Ministry of Economics and Technology in cooperation with the mining authorities of the federal states. It contains comprehensive data of all production facilities of mining industry in Germany and describes the position of the German industry in the context of the overall economic development. The report shows an interest in local raw materials as well as on the international raw materials economy. Moreover, the present publication provides a detailed statistics section. [de

  11. International mining forum 2004, new technologies in underground mining, safety in mines proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Jerzy Kicki; Eugeniusz Sobczyk (eds.)

    2004-01-15

    The book comprises technical papers that were presented at the International Mining Forum 2004. This event aims to bring together scientists and engineers in mining, rock mechanics, and computer engineering, with a view to explore and discuss international developments in the field. Topics discussed in this book are: trends in the mining industry; new solutions and tendencies in underground mines; rock engineering problems in underground mines; utilization and exploitation of methane; prevention measures for the control of rock bursts in Polish mines; and current problems in Ukrainian coal mines.

  12. Taxation and regulation of uranium mining in Canada

    International Nuclear Information System (INIS)

    Anon.

    1990-01-01

    Government taxation and regulation have a profound influence on mineral operations. In Canada, taxation occurs both on the federal and provincial levels. In addition, both federal and provincial regulations also affect mine operations, sometimes with overlapping, or conflicting, legislation and jurisdiction. Three broad areas of regulation affect the mine production of uranium in Canada: (1) mining law or mineral rights; (2) the licensing procedures; and (3) regulation of occupational health and safety

  13. Influence of noxious products of blasting in mine air on miners' health

    Energy Technology Data Exchange (ETDEWEB)

    Zemlyakova, L F; Sukhanov, V V

    1979-07-01

    Changes in the percentage of carbon monoxide and nitric oxide in mine air as a result of blasting is analyzed as measured in coal mines of the Donbass in coal seams located from 500 m to 1000 m underground. It is stated that 15 minutes after blasting the concentration of carbon monoxide and nitric oxide drops to a permissible level. Fifty minutes after blasting the percentage of nitric oxide in mine air drops to such a level that it can not be detected. Carbon monoxide can be detected until the blasted rocks and coal are removed from the heading. The percentage of nitric oxide in mine air falls with growing depth of workings. The interdependence between state of miners' health and their contact with noxious gases is also analyzed. The analysis shows that miners working where blasting is used are ill more frequently than other miners, and their absence due to illness is longer. (In Russian)

  14. Representing a Model Using Data Mining Approach for Maximizing Profit with Considering Product Assortment and Space Allocation Decisions

    Directory of Open Access Journals (Sweden)

    Manoochehr Ansari

    2016-12-01

    Full Text Available The choice of which products to stock among numerous competing products and how much space to allocate to those products are central decisions for retailers. This study aimed to apply data mining approach so that, we got needed information from large datasets of sale transactions to find the relations between products and to make product assortments. Thus, we represented a model for product assortment and space allocation. Research population was transactional data of a store, the sample included transactional data of one-month period in the time series. Data were collected in October and November, 2015 from Shaghayegh store. 525 transactions with regard to 79 different products were analyzed. Based on the result 10 product assortments formed although some products were allocated to more than 1 product category. By solving profit equation and finding volume increase indices we allocated spaces for each product assortment.

  15. Coal mine safety achievements in the USA and the contribution of NIOSH research

    Energy Technology Data Exchange (ETDEWEB)

    Esterhuizen, G.S.; Gurtunca, R.G. [NIOSH, Washington, DC (United States)

    2006-12-15

    Over the past century coal miner safety and health have seen tremendous improvements: the fatality and injury rates continue to decrease while productivity continues to increase. Many of the hazards that plagued miners in the past, such as coal bumps, methane and coal dust explosions, ground fall accidents and health issues have been significantly reduced. The contribution of NIOSH research includes products for prevention and survival of mine fires, methane control measures, design procedure for underground coal mines, methods for excavation surface controls, methods and procedures for blasting, laser usage in underground mines and prevention of electrocution from overhead power lines that have reduced accidents and injuries in underground coal mines. Health research has produced products such as the personal dust monitor, noise abating technologies and ergonomic solutions for equipment operators. Research priorities at NIOSH are set by considering surveillance statistics, stakeholder inputs and loss control principles. Future research in coal mining is directed towards respiratory diseases, noise-induced hearing loss, repetitive musculoskeletal injuries, traumatic injuries, falls of ground and mine disasters. The recent spate of accidents in coal mines resulted in the Miner Act of 2006, which includes a specific role for NIOSH in future mine safety research and development. The mine safety achievements in the USA reflect the commitment of industry, labour, government and research organizations to improving the safety of the mine worker.

  16. Mine waste disposal and managements

    Energy Technology Data Exchange (ETDEWEB)

    Cheong, Young Wook; Min, Jeong Sik; Kwon, Kwang Soo; Kim, Ok Hwan; Kim, In Kee; Song, Won Kyong; Lee, Hyun Joo [Korea Institute of Geology Mining and Materials, Taejon (Korea)

    1998-12-01

    Acid Rock Drainage (ARD) is the product formed by the atmospheric oxidation of the relatively common pyrite and pyrrhotite. Waste rock dumps and tailings containing sulfide mineral have been reported at toxic materials producing ARD. Mining in sulphide bearing rock is one of activity which may lead to generation and release of ARD. ARD has had some major detrimental affects on mining areas. The purpose of this study was carried out to develop disposal method for preventing contamination of water and soil environment by waste rocks dump and tailings, which could discharge the acid drainage with high level of metals. Scope of this study was as following: environmental impacts by mine wastes, geochemical characteristics such as metal speciation, acid potential and paste pH of mine wastes, interpretation of occurrence of ARD underneath tailings impoundment, analysis of slope stability of tailings dam etc. The following procedures were used as part of ARD evaluation and prediction to determine the nature and quantities of soluble constituents that may be washed from mine wastes under natural precipitation: analysis of water and mine wastes, Acid-Base accounting, sequential extraction technique and measurement of lime requirement etc. In addition, computer modelling was applied for interpretation of slope stability od tailings dam. (author). 44 refs., 33 tabs., 86 figs.

  17. Microbial ecology of coal mine refuse

    Energy Technology Data Exchange (ETDEWEB)

    Cameron, R. E.; Miller, R. M.

    1977-01-01

    Baseline microbial and ecological studies of samples obtained from two abandoned coal mine refuse sites in the State of Illinois indicate that the unfavorable nature of refuse materials can be a very limiting factor for survival and growth of organisms. Despite the ''foothold'' obtained by some microorganisms, especially acidophilic fungi and some acidotolerant algae, the refuse materials should be amended or ameliorated to raise the pH, provide needed nutrients, especially nitrogen, and provide biodegradable organic matter, both for physical and biological purposes. Finally, the role of microbial populations, responses, and interactions in acid mine wastes must be put into larger perspective. Acid mine drainage amounts to over 4 million tons per year of acidity from active and abandoned mines. Microorganisms appear to be significantly responsible for this problem, but they also can play a beneficial and significant role in the amelioration or alleviation of this detrimental effect as abandoned mines are reclaimed and returned to useful productivity.

  18. Improving Posthospital Discharge Telephone Reach Rates Through Prehospital Discharge Face-to-Face Meetings.

    Science.gov (United States)

    Vergara, Franz H; Sheridan, Daniel J; Sullivan, Nancy J; Budhathoki, Chakra

    The purpose of this study was to determine whether a face-to-face meeting with patients by a telephonic case manager prehospital discharge would result in increased telephone follow-up (TFU) reach rates posthospital discharge. Acute care adult medicine inpatient units. A quasiexperimental design was utilized. Two adult inpatient medicine units were selected as the intervention and comparison groups. The framework of the study is the transitions theory. A convenience sampling technique was used, whereby 88 eligible patients on the intervention unit received face-to-face meetings prehospital discharge whereas 123 patients on the comparison unit received standard care (no face-to-face meetings). Cross-tabulation and chi-square tests were employed to examine the association of face-to-face meeting intervention and TFU reach rates. Implementing brief (face-to-face meetings by a telephonic case manager prehospital discharge resulted in a TFU reach rate of 87% on the intervention unit, whereas the comparison unit only had a 58% TFU reach rate (p communication with more patients posthospital discharge. A brief prehospital discharge face-to-face meeting with patients assisted them to understand the reasons for a posthospital discharge telephone call, identified the best times to call using accurate telephone numbers, and taught patients how best to prepare for the call. In addition, by meeting patients face-to-face, the telephonic case manager was no longer an unknown person on the telephone asking them questions about their medical condition. These factors combined may have significantly helped to increase TFU reach rates.

  19. Efficacy and experiences of telephone counselling for informal carers of people with dementia.

    Science.gov (United States)

    Lins, Sabine; Hayder-Beichel, Daniela; Rücker, Gerta; Motschall, Edith; Antes, Gerd; Meyer, Gabriele; Langer, Gero

    2014-09-01

    Informal carers of people with dementia can suffer from depressive symptoms, emotional distress and other physiological, social and financial consequences. This review focuses on three main objectives:To:1) produce a quantitative review of the efficacy of telephone counselling for informal carers of people with dementia;2) synthesize qualitative studies to explore carers' experiences of receiving telephone counselling and counsellors' experiences of conducting telephone counselling; and3) integrate 1) and 2) to identify aspects of the intervention that are valued and work well, and those interventional components that should be improved or redesigned. The Cochrane Dementia and Cognitive Improvement Group's Specialized Register, The Cochrane Library, MEDLINE, MEDLINE in Process, EMBASE, CINAHL, PSYNDEX, PsycINFO, Web of Science, DIMDI databases, Springer database, Science direct and trial registers were searched on 3 May 2011 and updated on 25 February 2013. A Forward Citation search was conducted for included studies in Web of Science and Google Scholar. We used the Related Articles service of PubMed for included studies, contacted experts and hand-searched abstracts of five congresses. Randomised controlled trials (RCTs) or cross-over trials that compared telephone counselling for informal carers of people with dementia against no treatment, usual care or friendly calls for chatting were included evaluation of efficacy. Qualitative studies with qualitative methods of data collection and analysis were also included to address experiences with telephone counselling. Two authors independently screened articles for inclusion criteria, extracted data and assessed the quantitative trials with the Cochrane 'Risk of bias' tool and the qualitative studies with the Critical Appraisal Skills Program (CASP) tool. The authors conducted meta-analyses, but reported some results in narrative form due to clinical heterogeneity. The authors synthesised the qualitative data and

  20. Feasibility of introducing continuous systems in surface mines of India

    Energy Technology Data Exchange (ETDEWEB)

    Bordia, S K

    1987-06-01

    The paper presents a brief outline of the mineral types, production trends and techno-economic feasiblity associated with the possible introduction of continuous mining systems to India. Production trends are outlined for coal, limestone, bauxite, phosphate, and iron ore. Continuous mining systems described are heavy-duty bucket wheel excavators, road milling type machines and shearing type machines. 8 refs.

  1. Spreading the cult body on YouTube: A case study of "Telephone" derivative videos

    Directory of Open Access Journals (Sweden)

    Agnese Vellar

    2012-03-01

    Full Text Available This case study of spreadability analyzes the Lady Gaga music video "Telephone," which has been appropriated and reworked by YouTube users sharing derivative works online. What properties of the music video stimulate user appropriation? What hybrid audiovisual forms are emerging from its reworking by users? In order to answer these questions, between January and August 2010, I conducted participant observation on Lady Gaga's official social network profiles and collected 70 "Telephone" derivative videos on YouTube. I identified three main categories of video creativity: (1 music (which includes covers, "me singing" videos, music mashups, and choreography; (2 parody (in which YouTube users and comedians humorously imitate Gaga, creating spoofs; and (3 fashion (in which makeup artists and amateurs appropriate the star's image to create makeup and hair tutorials. "Telephone" has become spreadable because it integrates dance music and choreography, costume changes, cinematic references, and product placements that work as textual hooks meaningful to different target markets: live music, dance, chick, and postmodern cinematic cultures. In particular, Gaga is a cult body that explicitly incorporates previous cinematic and pop music icons. Users are stimulated to reenact Gaga's cult body online. On YouTube, spreadability is thus strictly related to the appropriation of cult bodies. Fans, comedians, independent musicians, fashionistas, and pop stars construct their own cult bodies by deliberately borrowing characteristics from previous media icons and reenacting them in online videos in order to fulfill their expressive and professional needs.

  2. Mapping crime scenes and cellular telephone usage

    CSIR Research Space (South Africa)

    Schmitz, Peter MU

    2000-12-01

    Full Text Available This paper describes a method that uses a desktop geographical information system (GIS) to plot cellular telephone conversations made when crimes are committed, such as hijackings, hostage taking, kidnapping, rape and murder. The maps produced...

  3. Occupational exposures in underground gold mines in South Africa. An overview

    International Nuclear Information System (INIS)

    Khoathane, M.

    2002-01-01

    South Africa has a very large mining and minerals processing industry exploiting a variety of ores and minerals containing elevated levels of NORM. The industry employs more than 300,000 persons. Doses have been assessed to workers in the mining industry in South Africa. In the gold mining industry radon measurements have been performed since the early 1970s. Regulations have been in force since 1990. The mean annual dose to underground gold mine workers, mostly from radon progeny, is about 5 mSv with maximum doses exceeding 20 mSv. The maximum annual dose to surface workers in gold mines is 5 mSv. In South African coal mines the mean annual dose from inhalation of radon decay products has been estimated from limited radon concentration measurements to be about 0.6 mSv. In the phosphoric acid and fertilizer production industry the doses to the workers do not exceed 6 mSv/y. There are 3 mineral sands operations in South Africa, for which the maximum annual dose to workers is 3 mSv. One open pit copper mine contains elevated levels of U, which is extracted as a by-product. The maximum annual doses to workers are 5 mSv for workers in the mine and 20 mSv for workers in the metallurgical plant. Worker doses in the metallurgical plant have since been reduced with the introduction of radiation protection measures

  4. Enterprise architecture approach to mining companies engineering

    Directory of Open Access Journals (Sweden)

    Ilin’ Igor

    2017-01-01

    Full Text Available As Russian economy is still largely oriented on commodities production, there are a lot of cities where mining and commodity-oriented enterprises are the backbone of city economy. The mentioned enterprises mostly define the life quality of citizens in such cities, thus there are high requirements for engineering of city-forming enterprises. The paper describes the enterprise architecture approach for management system engineering of the mining enterprises. The paper contains the model of the mining enterprise architecture, the approach to the development and implementation of an integrated management system based on the concept of enterprise architecture and the structure of information systems and information technology infrastructure of the mining enterprise.

  5. Evaluating Water Management Practice for Sustainable Mining

    Directory of Open Access Journals (Sweden)

    Xiangfeng Zhang

    2014-02-01

    Full Text Available To move towards sustainable development, the mining industry needs to identify better mine water management practices for reducing raw water use, increasing water use efficiency, and eliminating environmental impacts in a precondition of securing mining production. However, the selection of optimal mine water management practices is technically challenging due to the lack of scientific tools to comprehensively evaluate management options against a set of conflicting criteria. This work has provided a solution to aid the identification of more sustainable mine water management practices. The solution includes a conceptual framework for forming a decision hierarchy; an evaluation method for assessing mine water management practices; and a sensitivity analysis in view of different preferences of stakeholders or managers. The solution is applied to a case study of the evaluation of sustainable water management practices in 16 mines located in the Bowen Basin in Queensland, Australia. The evaluation results illustrate the usefulness of the proposed solution. A sensitivity analysis is performed according to preference weights of stakeholders or managers. Some measures are provided for assessing sensitivity of strategy ranking outcomes if the weight of an indicator changes. Finally, some advice is given to improve the mine water management in some mines.

  6. Research project for the determination of the suitability of the mine ''Konrad'' as a final repository for radioactive waste products

    International Nuclear Information System (INIS)

    1984-01-01

    A feasibility study of the Konrad mine for its use as a final repository for radioactive waste products was performed in 1978, 1979 and 1980. The report summarizes the most important results gained in the fields of geosciences and technical aspects of disposal operations

  7. Environmental protection at ISL uranium mining sites in Uzbekistan

    International Nuclear Information System (INIS)

    Grutsynov, V.A.

    2002-01-01

    The ecological aspects of uranium mining with particular focus on in situ leaching (ISL) are addressed in the paper. As compared to conventional mining methods, from the ecological point of view, ISL has proved to be advantageous. Innovations developed and introduced in the Navoi Mining and Metallurgical Combinat (NMMC) with the purpose of reducing the impact of the uranium production cycle on the environment are described. (author)

  8. Optimization of mining design of Hongwei uranium mine

    International Nuclear Information System (INIS)

    Wu Sanmao; Yuan Baixiang

    2012-01-01

    Combined with the mining conditions of Hongwei uranium mine, optimization schemes for hoisting cage, mine drainge,ore transport, mine wastewater treatment, power-supply system,etc are put forward in the mining design of the mine. Optimized effects are analyzed from the aspects of technique, economy, and energy saving and reducing emissions. (authors)

  9. Work on the CERN telephone exchanges

    CERN Multimedia

    2006-01-01

    Corrective maintenance work on the CERN telephone exchanges will be carried out on 13th March 2006, resulting in service interruptions across the west area of the Meyrin site between 9.00 p.m. and 11.00 p.m. We apologise for any inconvenience this may cause. CERN TELECOM Service Tel.: 76111 GSM: 160101

  10. Maintenance of CERN telephone exchanges - erratum

    CERN Document Server

    2005-01-01

    The next maintenance of CERN telephone exchanges will be performed on 19th, 20th, 21st, and 22nd of September from 7 p.m. to 9 p.m. Disturbances or even interruptions of telephony services may occur during this lapse of time. We apology in advance for any inconveniences that this may cause.

  11. 47 CFR 36.331 - Information origination/termination expenses-Account 6310 (Class B telephone companies); Accounts...

    Science.gov (United States)

    2010-10-01

    ... telephone companies). (a) The expenses in this account are classified as follows: (1) Other Information... 47 Telecommunication 2 2010-10-01 2010-10-01 false Information origination/termination expenses-Account 6310 (Class B telephone companies); Accounts 6311, 6341, 6351, and 6362 (Class A telephone...

  12. Responsible Development of Areva's Mining Activities. Report 2011

    International Nuclear Information System (INIS)

    2012-09-01

    After a presentation of the approach to responsibility adopted by AREVA to be a responsible mining stake holder (charter of values, implemented policies, risk prevention and management, best practices), this report gives an overview of mining activities (international presence, production in constant increase) with a focus on uranium mining which is the core business (the different phases are briefly presented: exploration, project development, mining, site decommissioning). It outlines personnel qualification and commitment, actions and policy in the field of personnel health and safety. It addresses the environmental policy: key levers, environmental management system, examples throughout the entire mining life cycle, changes in site consumptions and emissions, promotion of biodiversity. The next part concerns Areva's social commitment (dialogue, development aid in mining territories). Then, performance is expressed in terms of indicators for these different issues (teams, environmental policy, social involvement)

  13. Underground Mining Method Selection Using WPM and PROMETHEE

    Science.gov (United States)

    Balusa, Bhanu Chander; Singam, Jayanthu

    2018-04-01

    The aim of this paper is to represent the solution to the problem of selecting suitable underground mining method for the mining industry. It is achieved by using two multi-attribute decision making techniques. These two techniques are weighted product method (WPM) and preference ranking organization method for enrichment evaluation (PROMETHEE). In this paper, analytic hierarchy process is used for weight's calculation of the attributes (i.e. parameters which are used in this paper). Mining method selection depends on physical parameters, mechanical parameters, economical parameters and technical parameters. WPM and PROMETHEE techniques have the ability to consider the relationship between the parameters and mining methods. The proposed techniques give higher accuracy and faster computation capability when compared with other decision making techniques. The proposed techniques are presented to determine the effective mining method for bauxite mine. The results of these techniques are compared with methods used in the earlier research works. The results show, conventional cut and fill method is the most suitable mining method.

  14. Panorama of mining activities in France during 1993-1994

    International Nuclear Information System (INIS)

    Michel, J.C.; Bornuat, M.; Heinry, C.; Le Berre, P.

    1995-01-01

    Demand, and thus prices and activities, in the French mining sector continued to suffer from the effects of the 1993 recession. The moderate economic recovery seen in 1994 has not had an immediate impact on the mining industry partly because of previously built up stocks, but some encouraging signs have appeared: a clear resumption of oil exploration, the anti-dumping measures of the European Union, and a new Chinese pricing policy particularly concerning tungsten, antimony and fluorite. In general, French mining continued its decline as illustrated by the closures of further iron, uranium and zinc mines and the loss of all tungsten, bauxite, lead, zinc and germanium mines. The very marked decrease in zinc, silver, uranium, iron and coal production reflects the programmed closure of certain mines. In detail, the balance is more varied and the situation and outlook are not as bleak for all mineral substances: decline is moderate for potassium, barite and fluorite; oil and gas in France and nickel in new Caledonia are stable; sulphur, talc, salt, kaolin, feldspar and silica production have recorded a slight growth while gold is in clear progression. However, these positive aspects cannot counter-balance the lack of significant new resources (hydrocarbons, potassium) and of sufficient exploration effort relative to the stakes (metal ore mines). The end of the National Mineral Inventory in 1993 and the very long procedures for mining permits obtention do not favor national or international private investment. (J.S.). 14 figs., 11 tabs

  15. World Wide Web Usage Mining Systems and Technologies

    Directory of Open Access Journals (Sweden)

    Wen-Chen Hu

    2003-08-01

    Full Text Available Web usage mining is used to discover interesting user navigation patterns and can be applied to many real-world problems, such as improving Web sites/pages, making additional topic or product recommendations, user/customer behavior studies, etc. This article provides a survey and analysis of current Web usage mining systems and technologies. A Web usage mining system performs five major tasks: i data gathering, ii data preparation, iii navigation pattern discovery, iv pattern analysis and visualization, and v pattern applications. Each task is explained in detail and its related technologies are introduced. A list of major research systems and projects concerning Web usage mining is also presented, and a summary of Web usage mining is given in the last section.

  16. Microbial and geochemical assessment of bauxitic un-mined and post-mined chronosequence soils from Mocho Mountains, Jamaica.

    Science.gov (United States)

    Lewis, Dawn E; Chauhan, Ashvini; White, John R; Overholt, Will; Green, Stefan J; Jasrotia, Puja; Wafula, Denis; Jagoe, Charles

    2012-10-01

    Microorganisms are very sensitive to environmental change and can be used to gauge anthropogenic impacts and even predict restoration success of degraded environments. Here, we report assessment of bauxite mining activities on soil biogeochemistry and microbial community structure using un-mined and three post-mined sites in Jamaica. The post-mined soils represent a chronosequence, undergoing restoration since 1987, 1997, and 2007. Soils were collected during dry and wet seasons and analyzed for pH, organic matter (OM), total carbon (TC), nitrogen (TN), and phosphorus. The microbial community structure was assessed through quantitative PCR and massively parallel bacterial ribosomal RNA (rRNA) gene sequencing. Edaphic factors and microbial community composition were analyzed using multivariate statistical approaches and revealed a significant, negative impact of mining on soil that persisted even after greater than 20 years of restoration. Seasonal fluctuations contributed to variation in measured soil properties and community composition, but they were minor in comparison to long-term effects of mining. In both seasons, post-mined soils were higher in pH but OM, TC, and TN decreased. Bacterial rRNA gene analyses demonstrated a general decrease in diversity in post-mined soils and up to a 3-log decrease in rRNA gene abundance. Community composition analyses demonstrated that bacteria from the Proteobacteria (α, β, γ, δ), Acidobacteria, and Firmicutes were abundant in all soils. The abundance of Firmicutes was elevated in newer post-mined soils relative to the un-mined soil, and this contrasted a decrease, relative to un-mined soils, in proteobacterial and acidobacterial rRNA gene abundances. Our study indicates long-lasting impacts of mining activities to soil biogeochemical and microbial properties with impending loss in soil productivity.

  17. Uranium mining impacts on water resources in Brazil

    International Nuclear Information System (INIS)

    Simoes Filho, Francisco Fernando Lamego; Lauria, Dejanira C.; Vasconcellos, Luisa M.H.; Fernandes, Horst M.; Clain, Almir F.; Silva, Liliane F.

    2009-01-01

    Uranium mining and milling activities started operations in Brazil during the 80's. The first production Center was deployed in Pocos de Caldas (CIPC) State of Minas Gerais. The mine was exhausted in 1997, after has produced only 1200 t of U 3 O 8 . The second uranium plant began the operations in Caetite (URA), Bahia State, since 1999 and keeps operations until now with an annual U 3 O 8 production of up to 400 t. The company plans to double this mark in Caetite production center with the exploration of another uranium deposits and initiate underground operations of current open-pit mine. Simultaneously, they are seeking a license for a third plant in the State of Ceara that could produce the double of foreseen capacity in URA. This scenery drives to some issues related to the impact of uranium production on water resources of the respective watersheds. The CIPC plant is a closing mine site, which requires permanent treatment of the company due to the fact their sources of pollutants are subject to the occurrence of Acid Mine Drainage. The URA plant is located in a semi-arid region of Brazil. The extraction of uranium from the ore is achieved by means of a Heap-Leach process, which has low water demand supplied by a network of wells and from a dam, but can contribute to change the groundwater quality and in some cases the extinguishing of wells was observed. An overall assessment of these impacts in national level could produce some lessons that we must take advantage for the ongoing project of Santa Quiteria or even in future sites. (author)

  18. Telephone Crisis Support Workers' Intentions to Use Recommended Skills While Experiencing Functional Impairment.

    Science.gov (United States)

    Kitchingman, Taneile A; Wilson, Coralie J; Woodward, Alan; Caputi, Peter; Wilson, Ian

    2018-05-01

    Empathic engagement with distressed others can lead to elevated symptoms of psychological distress and functional impairment, which preclude helping professionals' delivery of optimal patient care. Whether telephone crisis support workers are impacted in a similar way is not currently reported in the literature. This study examined the relationship between functional impairment and intentions to use recommended support skills in a representative national sample of 210 telephone crisis support workers. Participants completed an online survey including measures of functional impairment and intentions to use recommended telephone crisis support skills with callers reporting suicidal ideation, symptoms of depression, and anxiety. As a group, participants who experienced greater functional impairment during the past month reported significantly lower intentions to use recommended support skills with callers than those who reported lower functional impairment. Future research is needed to clarify the extent to which results generalize to telephone crisis support workers from other organizations. Results warrant further research to (a) identify determinants of telephone crisis support workers' functional impairment, and (b) for the deliberate management of telephone crisis support workers' functional impairment through developing and/or modifying existing service strategies to optimize workers' psychological well-being and delivery of support to callers.

  19. Gypsiferous mine water use in irrigation on rehabilitated open-cast mine land: Crop production, soil water and salt balance

    OpenAIRE

    Annandale, J.; Jovanovic, N.; Pretorius, J.; Lorentz, S.; Rethman, N.; Tanner, P.

    2001-01-01

    The use of gypsiferous mine water for irrigation of agricultural crops is a promising technology, which could alleviate a shortage of irrigation water and address the problem of disposal of mine effluent. A field trial was established at Kleinkopje Colliery in Witbank (Mpumalanga Province, South Africa) during the 1997-1998 season. Sugar beans and wheat were irrigated with three center pivots, on both virgin and rehabilitated land. The objectives were to determine crop response to irrigation ...

  20. Mine Planning for Asteroid Orebodies

    Science.gov (United States)

    Gertsch, L. S.; Gertsch, R. E.

    2000-01-01

    Given that an asteroid (or comet) has been determined to contain sufficient material of value to be potentially economic to exploit, a mining method must be selected and implemented. This paper discusses the engineering necessary to bring a mine online, and the opportunities and challenges inherent in asteroid mineral prospects. The very important step of orebody characterization is discussed elsewhere. The mining methods discussed here are based on enclosing the asteroid within a bag in some fashion, whether completely or partially. In general, asteroid mining methods based on bags will consist of the following steps. Not all will be required in every case, nor necessarily in this particular sequence. Some steps will be performed simultaneously. Their purpose is to extract the valuable material from the body of the asteroid in the most efficient, cost-effective manner possible. In approximate order of initiation, if not of conclusion, the steps are: 1. Tether anchoring to the asteroid. 2. Asteroid motion control. 3. Body/fragment restraint system placement. 4. Operations platform construction. 5. Bag construction. 6. Auxiliary and support equipment placement. 7. Mining operations. 8. Processing operations. 9. Product transport to markets.

  1. ENVIRONMENTAL MONITORING AT THE NALUNAQ GOLD MINE, SOUTH GREENLAND, 2015

    DEFF Research Database (Denmark)

    Bach, Lis; Birch Larsen, Morten

    the monitoring in 2014, the area has been without any activity. The mining company Angel Mining Gold A/S closed its gold production in November 2013 where after the Nalunaq area was affected by decommissioning and restoration until August 2014. The gold was extracted by chemical extraction with cyanide (carbon......-in-pulp). Due to the use of cyanide to extract gold from the ore, there was strict monitoring with the outflow of cyanide from the mine to the valley during the production period, and monitoring will continue for 5 years after the closure. Also, extensive monitoring is conducted to reveal release of metals...

  2. Uranium mining and rehabilitation: International aspects and examples from Germany

    International Nuclear Information System (INIS)

    Barthel, F.H.; Mager, D.

    1997-01-01

    In the period from 1945 to 1994 about 1.87 million t U have been produced worldwide. The maximum of production reached about 70,000 t U in 1981, now the production has fell to about 32,000 t U. Due to the decrease of the annual output, employment in uranium production has decreased, however the productivity has been increased in most countries. As any mining, uranium mining has an impact on the environment. Especially the radioactivity of the ores and waste material may create radiological hazards to the population when protection measures are not observed carefully. The impact of uranium production to the environmental is illustrated by various examples. The costs which are necessary to decommission and rehabilitate uranium production facilities can reach high levels depending on the specifics of the recultivation activities. International examples are given. The production of uranium in Eastern Germany is described briefly, and the reclamation activities of the former Wismut mining and milling facilities is illustrated by selected examples. (author). 5 tabs

  3. Environmental protection technologies and prospect for uranium mining and metallurgy in China

    International Nuclear Information System (INIS)

    Pan Yingjie

    2002-01-01

    Based on practices of production and environmental protection of China's uranium mining and metallurgy, control and protection of the three wastes in uranium mining and metallurgy are discussed. Prospects for environmental protection technologies of uranium mining and metallurgy is made

  4. Coal mining in the power industry of the Federal Republic of Germany in 2016

    International Nuclear Information System (INIS)

    2017-11-01

    The contribution under consideration reports on the coal mining in the Federal Republic of Germany in the year 2016. Statistical data are presented for the power market and coal market, hard coal mining as well as the brown coal mining. These data consider the energy consumption in Germany, power production, iron and steel production, utilization, re-cultivation and employees.

  5. Coal mining in the power industry of the Federal Republic of Germany in 2015

    International Nuclear Information System (INIS)

    2016-11-01

    The contribution under consideration reports on the coal mining in the Federal Republic of Germany in the year 2015. Statistical data are presented for the power market and coal market, hard coal mining as well as the brown coal mining. These data consider the energy consumption in Germany, power production, iron and steel production, utilization, re-cultivation and employees.

  6. Coal mining situation in the Federal Republic of Germany. The 1st quarter 2010

    International Nuclear Information System (INIS)

    2010-01-01

    The report on coal mining situation in the Federal Republic of Germany in the 1st quarter 2010 contains the statistical data concerning the following issues: (i) black coal mining: part I: production, resources, accomplishments; employees, part II: marketing and foreign trade; (ii) brown coal mining: part I: production, resources, accomplishments; employees, part II: marketing and foreign trade.

  7. Surface Mines, Other - Longwall Mining Panels

    Data.gov (United States)

    NSGIC Education | GIS Inventory — Coal mining has occurred in Pennsylvania for over a century. A method of coal mining known as Longwall Mining has become more prevalent in recent decades. Longwall...

  8. Mobile and cordless telephones, serum transthyretin and the blood-cerebrospinal fluid barrier: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Carlberg Michael

    2009-04-01

    Full Text Available Abstract Background Whether low-intensity radiofrequency radiation damages the blood-brain barrier has long been debated, but little or no consideration has been given to the blood-cerebrospinal fluid barrier. In this cross-sectional study we tested whether long-term and/or short-term use of wireless telephones was associated with changes in the serum transthyretin level, indicating altered transthyretin concentration in the cerebrospinal fluid, possibly reflecting an effect of radiation. Methods One thousand subjects, 500 of each sex aged 18–65 years, were randomly recruited using the population registry. Data on wireless telephone use were assessed by a postal questionnaire and blood samples were analyzed for serum transthyretin concentrations determined by standard immunonephelometric techniques on a BN Prospec® instrument. Results The response rate was 31.4%. Logistic regression of dichotomized TTR serum levels with a cut-point of 0.31 g/l on wireless telephone use yielded increased odds ratios that were statistically not significant. Linear regression of time since first use overall and on the day that blood was withdrawn gave different results for males and females: for men significantly higher serum concentrations of TTR were seen the longer an analogue telephone or a mobile and cordless desktop telephone combined had been used, and in contrast, significantly lower serum levels were seen the longer an UMTS telephone had been used. Adjustment for fractions of use of the different telephone types did not modify the effect for cumulative use or years since first use for mobile telephone and DECT, combined. For women, linear regression gave a significant association for short-term use of mobile and cordless telephones combined, indicating that the sooner blood was withdrawn after the most recent telephone call, the higher the expected transthyretin concentration. Conclusion In this hypothesis-generating descriptive study time since first

  9. Comparative study of German and Greek lignite mine reclamation

    International Nuclear Information System (INIS)

    Dietrich, N.L.

    1994-01-01

    The reclamation planning of three European lignite mining districts are compared: amount and extent of planning, integration with mining operations, and results. The districts are: Rheinbraun (Cologne), Leipzig-Borna (''East'' Germany), and Megalopolis (Greece). Lignite mines were visited and mining and reclamation personnel interviewed. The Rheinbraun mines have the most thorough reclamation operations. The integrated mine and reclamation operations are world class in size, scope, and detail of reclamation. A comprehensive landscape and reclamation plan is required in the mine permitting process. The Leipzig-Borna district is the second largest of the districts, studied little pre-mining planning of the post-mining landscape or land uses was evident. Reclamation is not closely integrated with the mining and typically occurs many years after the mining. Reduced lignite production since German reunification has left vast areas of disturbed land with little mining; and no funding for the reclamation of the large areas of mined land reclamation. The Greek Megalopolis mines have mine operations plan, but with no integrated reclamation planning. The initial spoil pile was reclaimed according to the original German mining plan. No pits have been reclaimed, and spoil areas are revegetated sporadically. The Rheinbraun mining operations Cologne which include a post mining landscape/land use plan have integrated and timely reclamation operations. The other two mining operations, which do not have a comprehensive and detailed reclamation and landscape/land use plans, do not integrate reclamation operations with the mining operations. The results are large areas of mined land unreclaimed for many years

  10. Performance Measurement of Mining Equipments by Utilizing OEE

    Directory of Open Access Journals (Sweden)

    Sermin Elevli

    2010-10-01

    Full Text Available Over the past century, open pit mines have steadily increased their production rate by using larger equipments which requireintensive capital investment. Low commodity prices have forced companies to decrease their unit cost by improving productivity. Oneway to improve productivity is to utilize equipment as effectively as possible. Therefore, the accurate estimation of equipmenteffectiveness is very important so that it can be increased. Overall Equipment Effectiveness (OEE is a well-known measurementmethod, which combines availability, performance and quality, for the evaluation of equipment effectiveness in manufacturing industry.However, there isn’t any study in literature about how to use this metric for mining equipments such as shovel, truck, drilling machineetc. This paper will discuss the application of OEE to measure effectiveness of mining equipment. It identifies causes of time losses forshovel and truck operations and introduces procedure to record time losses. The procedure to estimate OEE of shovels and trucks hasalso been presented via numerical example.

  11. Seismicity induced by mining operations in the surrounding of the uranium ore mine Schlema-Alberoda

    International Nuclear Information System (INIS)

    Wallner, Olaf; Hiller, Axel

    2013-01-01

    The uranium mine Schlema-Alberoda of the Wismut GmbH (Chemnitz, Federal Republic of Germany) is situated in the Westerzgebirge between the villages Aue, Schneeberg and Hartenstein. This 22 km 2 large area contains the villages Bad Schlema with the districts Oberschlema, Niederschlema and Wildbach as well as the district Alberode of the village Aue. The most important waters are the Zwickauer Mulde flowing through this territory from the south to the north. This territory can be designated as a densely populated low mountain range landscape being characterized by mining operations for centuries. Subsequently to the year 1945, the former Soviet 'Saxonian mining administration' started the first explorations on uranium ores inter alia in the area around Schneeberg and Schlema. In the year 1946, the intensive exploration and exploitation began in the health resort Oberschlema well-known by the existence of water containing radium. Up to the year 1959, the part deposit Oberschlema was dismantled. The dismantling ranged till to a depth of 750 m. With the expansion of the explorations in north-western direction, in 1948 the first uranium containing corridors of the part deposit Niederschlema-Alberoda was verified. The mining activities began in the year 1949 and culminated in the midst of the 1960ies with an annual production of more than 4,000 tons of uranium. The 1,800 m floor level as the deepest floor level was reached in the year 1986. A total of 49.5 million cubic meters of rocks was dissolved, and a total of 80,500 tons of uranium ores was mined. These were nearly 35% of the total production of the former Soviet-German public limited company Wismut (SDAG Wismut).

  12. Comparing the hazards of coal and uranium mining

    International Nuclear Information System (INIS)

    Bromley, J.

    1987-01-01

    The article from a paper presented to the Uranium Institute Symposium, London, 1986. The risk calculation is based on: a) the fuel required to generate 1 GWe year of power, b) the productivity of uranium and coal mining, and c) the risk to a miner from one year of mining, and the risk to the public that results from 1 GWe year's worth of mine and mill operation. The evaluation reveals that the ratio of coal mining risk to uranium risk on a GWey basis differs from country to country, but falls in the range 10 to 30, coal being the higher. (U.K.)

  13. Opencast coal mining and site restoration in Britain today

    Energy Technology Data Exchange (ETDEWEB)

    Whitworth, K.

    1981-05-07

    Production of opencast coal in Great Britain totalled around 13 million tons in 1980. Compared with underground coal, average profits are high and production costs low. Opencast mines thus make an important contribution to high-grade coal supply in Great Britain and to the financial situation of the National Coal Board. Former open-cast mines in Great Britain have been restored into leisure and pleasure regions that have become part of the rural scene.

  14. Application for trackless mining technique in Benxi uranium mine

    International Nuclear Information System (INIS)

    Chen Bingguo

    1998-01-01

    The author narrates the circumstances achieving constructional target in Benxi Uranium Mine under relying on advance of science and technology and adopting small trackless mining equipment, presents the application of trackless mining equipment at mining small mine and complex mineral deposit and discusses the unique superiority of trackless mining technique in development work, mining preparation work and backstoping

  15. Solution mining process

    International Nuclear Information System (INIS)

    Showalter, W.E.

    1984-01-01

    A solution mining process which may be used for uranium, thorium, vanadium, copper, nickel, molybdenum, rhenium, and selenium is claimed. During a first injection-and-production phase of between 6 months and 5 years, a leaching solution is injected through at least one well into the formation to solubilize the mineral values and form a pregnant liquor. This liquor is recovered through another well. The leaching solution contains sulfuric acid, nitric acid, hydrochloric acid, carbonic acid, an alkali metal carbonate, an alkali metal bicarbonate, ammonium carbonate or ammonium bicarbonate. Subsequently during a first production-only phase of between about 2 weeks and one year, injection of the leaching solution is suspended but pregnant liquor is still recovered. This stage is followed by a second injection-and-production phase of between 6 months and 5 years and a second production-only phase. The mineral values are separated from the pregnant liquor to form a barren liquor. The leaching agent is introduced into this liquor, and the solution is recycled. In a second claim for the solution mining of uranium, dilute carbonic acid is used as the leaching solution. The solution has a pH less than 7 and a bicarbonate ion concentration between about 380 ppm and 1000 ppm. The injection-and-production phase lasts between one and two years and the production only phase takes between one and four months. Carbon dioxide is introduced into the barren liquor to form a dilute carbonic acid solution and the solution is recycled

  16. Prediction of the net radon emission from a model open pit uranium mine

    International Nuclear Information System (INIS)

    Nielson, K.K.; Perkins, R.W.; Schwendiman, L.C.; Enderlin, W.I.

    1979-04-01

    Radon emission from a model open pit uranium mining operation has been estimated by applying radon exhalation fluxes measured in an open pit uranium mine to the various areas of the model mine. The model mine was defined by averaging uranium concentrations and production and procedural statistics for eight major open pit uranium mines in the Casper, Wyoming area. The resulting emission rates were 740 Ci/AFR during mining operations and 33 Ci/AFR/yr after abandonment of the mine

  17. Comparative analysis of data mining techniques for business data

    Science.gov (United States)

    Jamil, Jastini Mohd; Shaharanee, Izwan Nizal Mohd

    2014-12-01

    Data mining is the process of employing one or more computer learning techniques to automatically analyze and extract knowledge from data contained within a database. Companies are using this tool to further understand their customers, to design targeted sales and marketing campaigns, to predict what product customers will buy and the frequency of purchase, and to spot trends in customer preferences that can lead to new product development. In this paper, we conduct a systematic approach to explore several of data mining techniques in business application. The experimental result reveals that all data mining techniques accomplish their goals perfectly, but each of the technique has its own characteristics and specification that demonstrate their accuracy, proficiency and preference.

  18. Mining engineer requirements in a German coal mine

    Energy Technology Data Exchange (ETDEWEB)

    Rauhut, F J

    1985-10-01

    Basic developments in German coal mines, new definitions of working areas of mining engineers, and groups of requirements in education are discussed. These groups include: requirements of hard-coal mining at great depth and in extended collieries; application of process technology and information systems in semi-automated mines; thinking in processes and systems; organizational changes; future requirements of mining engineers; responsibility of the mining engineer for employees and society.

  19. Monitoring interaction and collective text production through text mining

    Directory of Open Access Journals (Sweden)

    Macedo, Alexandra Lorandi

    2014-04-01

    Full Text Available This article presents the Concepts Network tool, developed using text mining technology. The main objective of this tool is to extract and relate terms of greatest incidence from a text and exhibit the results in the form of a graph. The Network was implemented in the Collective Text Editor (CTE which is an online tool that allows the production of texts in synchronized or non-synchronized forms. This article describes the application of the Network both in texts produced collectively and texts produced in a forum. The purpose of the tool is to offer support to the teacher in managing the high volume of data generated in the process of interaction amongst students and in the construction of the text. Specifically, the aim is to facilitate the teacher’s job by allowing him/her to process data in a shorter time than is currently demanded. The results suggest that the Concepts Network can aid the teacher, as it provides indicators of the quality of the text produced. Moreover, messages posted in forums can be analyzed without their content necessarily having to be pre-read.

  20. Management of waste from uranium mining and milling in Australia

    International Nuclear Information System (INIS)

    Harries, J.; Levins, D.; Ring, B.; Zuk, W.

    1997-01-01

    Australia has a long history of uranium mining. Most of the early production came from Rum Jungle in the Northern Territory and Mary Kathleen in Queensland. The second generation of uranium mines (Ranger, Nabarlek and Olympic Dam) came on line in the 1970s and 1980s at a time of increased environmental awareness and public scrutiny. The waste management practices at these mines are in accordance with best practicable technology for the uranium mining industry. This paper describes Australia's experience in managing the front end of the fuel cycle; uranium mining and ore processing. (orig.)

  1. Assessing the quality of pharmacist answers to telephone drug information questions.

    Science.gov (United States)

    Woodward, C T; Stevenson, J G; Poremba, A

    1990-04-01

    A quality assurance (QA) program is described in which frontline pharmacists were asked test drug information questions via anonymous telephone calls. The program was instituted at a university hospital that began providing decentralized pharmaceutical services in 1985. Questions were developed on the basis of a pilot study conducted to determine the types and complexity of drug information questions received by frontline pharmacists at the hospital. Data on departmental clinical productivity were used to determine the number of questions that would be posed during each shift in the various service areas. The questions were posed during a 10-day period; the pharmacists were aware of the program, but the callers did not identify their affiliation with it. In response to 105 questions asked, 86 were judged to have been answered correctly, 13 answers were deemed incomplete, and 6 were judged incorrect. Pharmacists were more likely to respond incorrectly to complex questions and questions posed during the night shift. As a result of the audit, staff members with advanced clinical knowledge were asked to help less experienced pharmacists, the position of assistant director for drug information and staff development was created, and educational programs were instituted. The QA audit has been repeated twice. Posing test drug information questions via anonymous telephone calls is effective in assessing the quality of drug information provided by pharmacists in patient-care areas.

  2. Adaptation policy in hard coal mining. Die Anpassungspolitik im Steinkohlenbergbau

    Energy Technology Data Exchange (ETDEWEB)

    Brink, H J; Haas, H; Jochum, E; Muellendorff, R; Rolshoven, H

    1981-01-01

    The book points out the necessity of balancing the output of hard coal mines. Detailed analyses of marketing conditions serve as a decision aid for business policy. Production and sales trends in German hard coal mining, instruments of adaptation to quantitative changes in sales, and empirical investigations of adaptation instruments in the underground part of the Goettelborn mine are reviewed.

  3. ERA's Ranger uranium mine

    International Nuclear Information System (INIS)

    Davies, W.

    1997-01-01

    Energy Resource of Australia (ERA) is a public company with 68% of its shares owned by the Australian company North Limited. It is currently operating one major production centre - Ranger Mine which is 260 kilometres east of Darwin, extracting and selling uranium from the Ranger Mine in the Northern Territory to nuclear electricity utilities in Japan, South Korea, Europe and North America. The first drum of uranium oxide from Ranger was drummed in August 1981 and operations have continued since that time. ERA is also in the process of working towards obtaining approvals for the development of a second mine - Jabiluka which is located 20 kilometres north of Ranger. The leases of Ranger and Jabiluka adjoin. The Minister for the Environment has advised the Minister for Resources and Energy that there does not appear to be any environmental issue which would prevent the preferred Jabiluka proposal from proceeding. Consent for the development of ERA's preferred option for the development of Jabiluka is being sought from the Aboriginal Traditional Owners. Ranger is currently the third largest producing uranium mine in the world producing 4,237 tonnes of U 3 O 8 in the year to June 1997

  4. Environmental impact of coal mine methane emissions and responding strategies in China

    Energy Technology Data Exchange (ETDEWEB)

    Cheng, Y.P.; Wang, L.; Zhang, X.L. [China University of Mining & Technology, Xuzhou (China)

    2011-01-15

    The impact on global climate change from coal mine methane emissions in China has been drawing attention as coal production has powered its economic development. Data on coal mine methane emissions from the State Administration of Coal Mine Safety of China has been analyzed. It is estimated that the methane emission from coal mining in China reached 20 billions of cubic meters in 2008, most of which comes from state-owned coal mines with high-gas content. China releases six times as much of methane from coal mines as compared to the United States. However, Chinese methane emission from coal production accounts for only a very small proportion on the environmental impact when compared to emissions of carbon dioxide from fossil fuel consumption. The Chinese government has shown environmental awareness and resolution on the mitigation and utilization of coal mine methane emissions. Measures have been taken to implement the programs of mitigation and utilization of coal mine methane, and at the same time, to ensure mining safety. Nearly 7.2 billions of cubic meters of methane were drained from the coal mines, and 32% of it was utilized in 2008. The slow advancement of technologies for the drainage and utilization of low-concentration methane from ventilation air hinders the progress of mitigation of atmospheric methane and the utilization of coal mine methane emissions.

  5. A Remote Sensing Approach to Environmental Monitoring in a Reclaimed Mine Area

    Directory of Open Access Journals (Sweden)

    Rajchandar Padmanaban

    2017-12-01

    Full Text Available Mining for resources extraction may lead to geological and associated environmental changes due to ground movements, collision with mining cavities, and deformation of aquifers. Geological changes may continue in a reclaimed mine area, and the deformed aquifers may entail a breakdown of substrates and an increase in ground water tables, which may cause surface area inundation. Consequently, a reclaimed mine area may experience surface area collapse, i.e., subsidence, and degradation of vegetation productivity. Thus, monitoring short-term landscape dynamics in a reclaimed mine area may provide important information on the long-term geological and environmental impacts of mining activities. We studied landscape dynamics in Kirchheller Heide, Germany, which experienced extensive soil movement due to longwall mining without stowing, using Landsat imageries between 2013 and 2016. A Random Forest image classification technique was applied to analyze land-use and landcover dynamics, and the growth of wetland areas was assessed using a Spectral Mixture Analysis (SMA. We also analyzed the changes in vegetation productivity using a Normalized Difference Vegetation Index (NDVI. We observed a 19.9% growth of wetland area within four years, with 87.2% growth in the coverage of two major waterbodies in the reclaimed mine area. NDVI values indicate that the productivity of 66.5% of vegetation of the Kirchheller Heide was degraded due to changes in ground water tables and surface flooding. Our results inform environmental management and mining reclamation authorities about the subsidence spots and priority mitigation areas from land surface and vegetation degradation in Kirchheller Heide.

  6. Telephone reminders reduced the non-attendance rate in a gastroenterology outpatient clinic.

    Science.gov (United States)

    Jeppesen, Maja Haunstrup; Ainsworth, Mark Andrew

    2015-06-01

    Non-attendance is a global health-care problem. The aim of the present study was 1) to investigate if a telephone reminder could reduce the non-attendance rate, 2) to study reasons for non-attendance and 3) to evaluate if a permanent implementation would be economically advantageous in a gastroenterology outpatient clinic like ours. This was a comparative intervention study with a historical control group in a gastroenterology outpatient clinic. The study lasted six months. Patients with a scheduled appointment in the first three-month period received no reminder (control group, n = 2,705). Patients in the following three-month period were reminded by telephone one weekday in advance of their appointment, when possible (intervention group, n = 2,479). Non-attending patients in the intervention group received a questionnaire. Based on the results, a financial cost-benefit analysis was made. In the intervention group, 1,577 (64%) patients answered the reminder telephone call. The non-attendance rate was significantly lower in the intervention group (6.1%) than in the control group (10.5%) (p < 0.00001). Only 1.3% of the patients who answered the reminder turned out to be non-attendees. The most common explanation for non-attendance in the intervention group was forgetfulness (39%). The reminder telephone call was cost-effective. In this outpatient clinic, telephone reminders were cost-effective and significantly reduced the non-attendance rate by 43%.

  7. Modeling Auditory-Haptic Interface Cues from an Analog Multi-line Telephone

    Science.gov (United States)

    Begault, Durand R.; Anderson, Mark R.; Bittner, Rachael M.

    2012-01-01

    The Western Electric Company produced a multi-line telephone during the 1940s-1970s using a six-button interface design that provided robust tactile, haptic and auditory cues regarding the "state" of the communication system. This multi-line telephone was used as a model for a trade study comparison of two interfaces: a touchscreen interface (iPad)) versus a pressure-sensitive strain gauge button interface (Phidget USB interface controllers). The experiment and its results are detailed in the authors' AES 133rd convention paper " Multimodal Information Management: Evaluation of Auditory and Haptic Cues for NextGen Communication Dispays". This Engineering Brief describes how the interface logic, visual indications, and auditory cues of the original telephone were synthesized using MAX/MSP, including the logic for line selection, line hold, and priority line activation.

  8. Discovery of the leinamycin family of natural products by mining actinobacterial genomes.

    Science.gov (United States)

    Pan, Guohui; Xu, Zhengren; Guo, Zhikai; Hindra; Ma, Ming; Yang, Dong; Zhou, Hao; Gansemans, Yannick; Zhu, Xiangcheng; Huang, Yong; Zhao, Li-Xing; Jiang, Yi; Cheng, Jinhua; Van Nieuwerburgh, Filip; Suh, Joo-Won; Duan, Yanwen; Shen, Ben

    2017-12-26

    Nature's ability to generate diverse natural products from simple building blocks has inspired combinatorial biosynthesis. The knowledge-based approach to combinatorial biosynthesis has allowed the production of designer analogs by rational metabolic pathway engineering. While successful, structural alterations are limited, with designer analogs often produced in compromised titers. The discovery-based approach to combinatorial biosynthesis complements the knowledge-based approach by exploring the vast combinatorial biosynthesis repertoire found in Nature. Here we showcase the discovery-based approach to combinatorial biosynthesis by targeting the domain of unknown function and cysteine lyase domain (DUF-SH) didomain, specific for sulfur incorporation from the leinamycin (LNM) biosynthetic machinery, to discover the LNM family of natural products. By mining bacterial genomes from public databases and the actinomycetes strain collection at The Scripps Research Institute, we discovered 49 potential producers that could be grouped into 18 distinct clades based on phylogenetic analysis of the DUF-SH didomains. Further analysis of the representative genomes from each of the clades identified 28 lnm -type gene clusters. Structural diversities encoded by the LNM-type biosynthetic machineries were predicted based on bioinformatics and confirmed by in vitro characterization of selected adenylation proteins and isolation and structural elucidation of the guangnanmycins and weishanmycins. These findings demonstrate the power of the discovery-based approach to combinatorial biosynthesis for natural product discovery and structural diversity and highlight Nature's rich biosynthetic repertoire. Comparative analysis of the LNM-type biosynthetic machineries provides outstanding opportunities to dissect Nature's biosynthetic strategies and apply these findings to combinatorial biosynthesis for natural product discovery and structural diversity.

  9. Design research of uranium mine borehole database

    International Nuclear Information System (INIS)

    Xie Huaming; Hu Guangdao; Zhu Xianglin; Chen Dehua; Chen Miaoshun

    2008-01-01

    With short supply of energy sources, exploration of uranium mine have been enhanced, but data storage, analysis and usage of exploration data of uranium mine are not highly computerized currently in China, the data is poor shared and used that it can not adapt the need of production and research. It will be well done, if the data are stored and managed in a database system. The concept structure design, logic structure design and data integrity checks are discussed according to the demand of applications and the analysis of exploration data of uranium mine. An application of the database is illustrated finally. (authors)

  10. Trichoderma virens PDR-28: a heavy metal-tolerant and plant growth-promoting fungus for remediation and bioenergy crop production on mine tailing soil.

    Science.gov (United States)

    Babu, A Giridhar; Shim, Jaehong; Bang, Keuk-Soo; Shea, Patrick J; Oh, Byung-Taek

    2014-01-01

    A heavy metal-tolerant fungus, Trichoderma virens PDR-28, was isolated from rhizosphere soil and evaluated for use in remediating mine tailing soil and for plant biomass production. PDR-28 exhibited plant growth-promoting traits, including 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, acid phosphatase and phytase activity, siderophore production, and P solubilization. HMs were more available in mine tailing soil inoculated soil with PDR-28 than in uninoculated soil; the order of HM bioleaching was Cd > As > Zn > Pb > Cu. PDR-28 effectively removed HMs in the order of Pb > Cd > As > Zn > Cu from liquid media containing 100 mg HM L(-1). Inoculating HM-contaminated mine tailing soil with the fungus significantly increased the dry biomass of maize roots (64%) and shoots (56%). Chlorophyll, total soluble sugars (reducible and nonreducible), starch, and protein contents increased by 46%, 28%, 30%, and 29%, respectively, compared to plants grown in uninoculated soil. Inoculation increased heavy metal concentrations in maize roots by 25% (Cu) to 62% (Cd) and in shoots by 35% (Cu) to 64% (Pb) compared to uninoculated plants. Results suggest that PDR-28 would be beneficial for phytostabilization and plant biomass production as a potential source of biofuel in the quest for renewable energy. Copyright © 2013. Published by Elsevier Ltd.

  11. 75 FR 8112 - In the Matter of Certain Mobile Telephones and Wireless Communication Devices Featuring Digital...

    Science.gov (United States)

    2010-02-23

    ... importation of certain mobile telephones and wireless communication devices featuring digital cameras, and... importation of certain mobile telephones or wireless communication devices featuring digital cameras, or... INTERNATIONAL TRADE COMMISSION [Inv. No. 337-TA-703] In the Matter of Certain Mobile Telephones...

  12. The Impact of Specialized Telephonic Guides on Employee Engagement in Corporate Well-Being Programs.

    Science.gov (United States)

    Boerger, Nicholas L; Barleen, Nathan A; Marzec, Mary L; Moloney, Daniel P; Dobro, Jeff

    2018-02-01

    Employer-sponsored well-being programs have been growing in popularity as a means to control rising health care costs and increase workplace productivity. Engagement by employees is necessary for these programs to achieve their desired effects. Extrinsic motivators in the form of incentives and surcharges are commonly introduced by employer program sponsors to promote meaningful engagement. Although these may be successful in achieving a degree of engagement, individuals benefit by being intrinsically motivated as they modify behaviors and improve short- and long-term well-being. Telephonic guides equipped with motivational interviewing and other behavioral strategies to improve engagement may bridge the gap between extrinsic and intrinsic motivation. The objectives of this study are to determine characteristics associated with employee utilization of these guides when offered and to compare subsequent program engagement rates between utilizers to a propensity score matched group of employees who were not offered the service. The data were retrieved from a well-being program provider's database. The study examined 166,258 employees across 35 employers. It found utilizers were older, proportionally more female, in the manufacturing industry, incented to use the guide service, offered a larger incentive for program participation, had healthier self-reported behaviors, and had a higher perception of their employer's focus on well-being. The study found that guide utilizers were significantly more likely to engage in telephonic coaching, digital coaching, and activity tracking up to 6 months. The study's findings suggest telephonic guides using a range of behavioral techniques are an effective strategy to drive well-being program engagement.

  13. Mining Together : Large-Scale Mining Meets Artisanal Mining, A Guide for Action

    OpenAIRE

    World Bank

    2009-01-01

    The present guide mining together-when large-scale mining meets artisanal mining is an important step to better understanding the conflict dynamics and underlying issues between large-scale and small-scale mining. This guide for action not only points to some of the challenges that both parties need to deal with in order to build a more constructive relationship, but most importantly it sh...

  14. Ventilation of uranium mines

    International Nuclear Information System (INIS)

    Francois, Y.; Pradel, J.; Zettwoog, P.; Dumas, M.

    1975-01-01

    In the first part of the paper the authors describe the ventilation of French mines in terms of the primary ventilation system, which brings the outside air close to the working places using the overall structure of the mine to form the airways, and the secondary ventilation system, which is for the distribution of the primary air or for the ventilation of the development drifts and blind tunnels. Brief mention is made of the French regulations on the ventilation of mines in general and uranium mines in particular. The authors describe the equipment used and discuss the installed capacities and air flow per man and per working place. The difficulties encountered in properly ventilating various types of working places are mentioned, such as sublevel development drifts, reinforced stopes, and storage chambers with an artificial crown. The second part of the paper is devoted to computer calculations of the primary ventilation system. It is explained why the Commissariat a l'energie atomique has found it necessary to make these calculations. Without restating the mathematical theories underlying the methods employed, the authors demonstrate how simple measuring instruments and a small-size computer can be used to solve the ventilation problems arising in French mines. Emphasis is given to the layout of the ventilation system and to air flow and negative pressure measurements at the base of the mine. The authors show how calculations can be applied to new heading operations, a change in resistance, the replacement or addition of a ventilator, and a new air inlet or outlet. The authors come to the conclusion that since ventilation is at present the most reliable way of avoiding the pollution of mines, a thorough knowledge of the capabilities in this respect can often help improve working conditions. Despite the progress made, however, constant surveillance of the ventilation systems in uranium mines by a separate team with no responsibility for production problems is

  15. Ventilation of uranium mines

    International Nuclear Information System (INIS)

    Francois, Y.; Pradel, J.; Zettwoog, P.; Dumas, M.

    1975-01-01

    In the first part of the paper the authors describe the ventilation of French mines in terms of the primary ventilation system, which brings the outside air close to the working places using the overall structure of the mine to form the airways, and the secondary ventilation system, which is for the distribution of the primary air or for the ventilation of the development drifts and blind tunnels. Brief mention is made of the French regulations on the ventilation of mines in general and uranium mines in particular. The authors describe the equipment used and discuss the installed capacities and air flow per man and per working place. The difficulties encountered in properly ventilating various types of working places are mentioned, such as sub-level development drifts, reinforced stopes, and storage chambers with an artificial crown. The second part of the paper is devoted to computer calculations of the primary ventilation system. It is explained why the Commissariat a l'energie atomique has found it necessary to make these calculations. Without restating the mathematical theories underlying the methods employed, the authors demonstrate how simple measuring instruments and a small-size computer can be used to solve the ventilation problems arising in French mines. Emphasis is given to the layout of the ventilation system and to air flow and negative pressure measurements at the base of the mine. The authors show how calculations can be applied to new heading operations, a change in resistance, the replacement or addition of a ventilator, and a new air inlet or outlet. The authors come to the conclusion that since ventilation is at present the most reliable way of avoiding the pollution of mines, a thorough knowledge of the capabilities in this respect can often help improve working conditions. Despite the progress made, however, constant surveillance of the ventilation systems in uranium mines by a separate team with no responsibility for production problems is

  16. Study on coal mine macro, meso and micro safety management system

    Directory of Open Access Journals (Sweden)

    Longkang Wang

    2016-03-01

    Full Text Available In recent years, the coal mine safety production situation in our country improved year by year, but severe accidents still occurred; the accidents caused great economic loss to the national economy. According to statistical analysis, almost all of the coal mine accidents will expose the hidden danger in before, most of the accidents caused due to safety management not reaching the designated position and the hidden danger management does not take any decision in time. Based on the coal mine safety management holes in our country, the coal mine macro, meso and micro safety management system was established in this paper, which includes meaning and conception of the theories of the macro, meso and micro safety management, and also includes the matching hardware equipment, in order to achieve the hidden danger's closed-loop control and dynamic early warning in the process of coal mine production.

  17. Implications of the 1990 ICRP recommendations for the mining industry

    International Nuclear Information System (INIS)

    Fry, R.M.

    1992-01-01

    Significant radiological protection problems arise in the mining and processing of uranium and thorium bearing ores, beach sands and other materials that have enhanced levels of uranium (e.g. phosphate). They are at their most extreme in the underground mining of uranium. Under the new ICRP 60 occupational dose limits it may be necessary to subject virtually all mining operations to some degree of radiological surveillance. There are three principal modes of radiation exposure in uranium mining operations: gamma rays, an external whole body radiation hazard; the inhalation of radon daughter products; and the inhalation of ore dust containing the long-lived alpha emitting daughter products of uranium, principally 230Th and 226Ra. A number of the new recommendations in ICRP60 considered to have significant implications for the mining industry in general and the above mentioned issues in particular are discussed. These include the definition of occupational exposure occupational dose limit, the review of the radon dose limits, the system of radiological protection. The major conclusions and recommendation of the IAEA Technical Committee to Explore the Impact of the new ICRP Occupational Dose Limits in the operation of underground mines are also summarized. 18 refs., 1 tab

  18. Logistics background study: underground mining

    Energy Technology Data Exchange (ETDEWEB)

    Hanslovan, J. J.; Visovsky, R. G.

    1982-02-01

    Logistical functions that are normally associated with US underground coal mining are investigated and analyzed. These functions imply all activities and services that support the producing sections of the mine. The report provides a better understanding of how these functions impact coal production in terms of time, cost, and safety. Major underground logistics activities are analyzed and include: transportation and personnel, supplies and equipment; transportation of coal and rock; electrical distribution and communications systems; water handling; hydraulics; and ventilation systems. Recommended areas for future research are identified and prioritized.

  19. Field evaluation of the effectiveness of three industrial by-products as organic amendments for phytostabilization of a Pb/Zn mine tailings.

    Science.gov (United States)

    Yang, Shengxiang; Cao, Jianbing; Li, Fengmei; Peng, Xizhu; Peng, Qingjing; Yang, Zhihui; Chai, Liyuan

    2016-01-01

    Although the potential of industrial by-products as organic amendments for phytostabilization has long been recognized, most of the previous studies addressing this issue have been laboratory-based. In this study, a field trial was conducted to evaluate the effectiveness of three industrial by-products [sweet sorghum vinasse (SSV), medicinal herb residues (MHR) and spent mushroom compost (SMC)] as organic amendments for phytostabilization of abandoned Pb/Zn mine tailings. Our results showed the following: (i) when compared to the control tailings, the mean concentrations of diethylene-triamine-pentaacetic acid (DTPA)-extractable Cd, Cu, Pb and Zn in SSV, MHR and SMC treatments decreased by 20.8-28.0%, 41.6-49.1%, 17.7-22.7% and 9.5-14.7%, respectively; (ii) the mean values of organic C, ammonium-N and available P in SSV, MHR and SMC treatments increased by 1.7-2.8, 10.8-14.9 and 3.9-5.1 times as compared with the mine tailings; and (iii) the addition of SSV, MHR and SMC significantly enhanced soil respiration and microbial biomass being 1.5-1.8 and 1.3-1.6 fold higher than those in the control tailings. There were no significant differences in soil biochemical properties among the plots amended with these by-products, suggesting that they were almost equally effective in improving the biochemical conditions of the tailings. In addition, the application of these amendments promoted seed germination, seedling growth, and consequently increased the vegetation cover and its biomass. Moreover, concentrations of Cd, Cu, Pb and Zn in above-ground parts of the plants were below the toxicity limit levels for animals. The results obtained in this field study confirmed that the three organic-rich industrial by-products could be used as amendments for phytostabilization of some types of mine tailings.

  20. Radio-Ecological Situation in the Area of the Priargun Production Mining and Chemical Association - 13522

    International Nuclear Information System (INIS)

    Semenova, M.P.; Seregin, V.A.; Kiselev, S.M.; Titov, A.V.; Zhuravleva, L.A.; Marenny, A.M.

    2013-01-01

    'The Priargun Production Mining and Chemical Association' (hereinafter referred to as PPMCA) is a diversified mining company which, in addition to underground mining of uranium ore, carries out refining of such ores in hydrometallurgical process to produce natural uranium oxide. The PPMCA facilities are sources of radiation and chemical contamination of the environment in the areas of their location. In order to establish the strategy and develop criteria for the site remediation, independent radiation hygienic monitoring is being carried out over some years. In particular, this monitoring includes determination of concentration of the main dose-forming nuclides in the environmental media. The subjects of research include: soil, grass and local foodstuff (milk and potato), as well as media of open ponds (water, bottom sediments, water vegetation). We also measured the radon activity concentration inside surface workshops and auxiliaries. We determined the specific activity of the following natural radionuclides: U-238, Th-232, K-40, Ra-226. The researches performed showed that in soil, vegetation, groundwater and local foods sampled in the vicinity of the uranium mines, there is a significant excess of 226 Ra and 232 Th content compared to areas outside the zone of influence of uranium mining. The ecological and hygienic situation is as follows: - at health protection zone (HPZ) gamma dose rate outdoors varies within 0.11 to 5.4 μSv/h (The mean value in the reference (background) settlement (Soktui-Molozan village) is 0.14 μSv/h); - gamma dose rate in workshops within HPZ varies over the range 0.14 - 4.3 μSv/h. - the specific activity of natural radionuclides in soil at HPZ reaches 12800 Bq/kg and 510 Bq/kg for Ra-226 and Th-232, respectively. - beyond HPZ the elevated values for 226 Ra have been registered near Lantsovo Lake - 430 Bq/kg; - the radon activity concentration in workshops within HPZ varies over the range 22 - 10800 Bq/m 3 . The seasonal dependence