828 resultados para Modern mining
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Short bibliography at end of each volume.
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At the end of the communist era, which was characterised as a closed social experiment, Romania found itself in the middle of a globalization process. Its industrial capacities have been considerably reduced through a poor and spendthrift management. There was a mass exodus of the labour force abroad and the educational background for the remaining part was no longer in agreement with the labour market. On these grounds, the vectors of globalization, in the form of foreign investments, entered Romania effortlessly. There even were local communities where the arrival of foreign investors was expected like a second coming of Christ. This is the context in which a Canadian company set forth the mining project Rosia Montana Gold Corporation. The implementation of the project should have started in 2005. Nevertheless, the project has not been effectively launched yet. This situation is based on what we call Romanian glocalization, namely a specific confrontation between global and local on Romanian land
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At the end of the communist era, which was characterised as a closed social experiment, Romania found itself in the middle of a globalization process. Its industrial capacities have been considerably reduced through a poor and spendthrift management. There was a mass exodus of the labour force abroad and the educational background for the remaining part was no longer in agreement with the labour market. On these grounds, the vectors of globalization, in the form of foreign investments, entered Romania effortlessly. There even were local communities where the arrival of foreign investors was expected like a second coming of Christ. This is the context in which a Canadian company set forth the mining project Rosia Montana Gold Corporation. The implementation of the project should have started in 2005. Nevertheless, the project has not been effectively launched yet. This situation is based on what we call Romanian glocalization, namely a specific confrontation between global and local on Romanian land
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At the end of the communist era, which was characterised as a closed social experiment, Romania found itself in the middle of a globalization process. Its industrial capacities have been considerably reduced through a poor and spendthrift management. There was a mass exodus of the labour force abroad and the educational background for the remaining part was no longer in agreement with the labour market. On these grounds, the vectors of globalization, in the form of foreign investments, entered Romania effortlessly. There even were local communities where the arrival of foreign investors was expected like a second coming of Christ. This is the context in which a Canadian company set forth the mining project Rosia Montana Gold Corporation. The implementation of the project should have started in 2005. Nevertheless, the project has not been effectively launched yet. This situation is based on what we call Romanian glocalization, namely a specific confrontation between global and local on Romanian land
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Os estudos sobre desenvolvimento, sem dúvida, se mantiveram como um dos últimos bastiões do modernismo nas ciências sociais (Rapley, 2004). Muitos dos dilemas chave em estudos contemporâneos sobre desenvolvimento se centraram nas disjuntivas entre inovação teórica, política e prática (Simon, 2003). No entanto, a discussão que envolve a relação entre desenvolvimento e mineração, que interessa neste estudo, ainda permanece acrítica dentro da literatura dominante. Segundo Graulau (2008), o tema de mineração encontra-se num vaivém entre o favoritismo e a oposição. O estudo sob o ponto de vista normativo da mineração no campo de desenvolvimento mostra a mentalidade econômica de longa data que prevalece nesse campo. No Peru as reformas neoliberais implantadas desde a década 1990 têm promovido fortemente o setor de mineração. Os investimentos nacionais e estrangeiros, o volume das exportações e impostos certamente têm influenciado favoravelmente na economia em termos macroeconômicos, obtendo quantidades consideráveis de divisas (UNCTAD, 2008). Não obstante, a grande mineração parece não ter beneficiado as comunidades envolvidas com a extração de minérios (Barrantes, 2005; Glave e Kuramoto, 2007; Zegarra; Orihuela e Paredes, 2007). A quantidade e gravidade dos conflitos que vem acontecendo evidenciam a resistência ao setor, frente à ação discursiva do Estado peruano sobre o “desenvolvimento” que assegura o que a mineração traz. Neste contexto este estudo tem como objetivo analisar as práticas discursivas das políticas de mineração peruana em relação a construção do discurso de desenvolvimento no período compreendido entre 1990-2009. Com esse objetivo, foi necessário abordar primeiramente as principais teorias sobre desenvolvimento, mineração e mineração no Peru. No que diz respeito à metodologia o presente estudo utilizou duas técnicas de análise: a Análise Crítica de Discurso, baseado no método tridimensional proposto por Fairclough (2001), para realizar a análise de três discursos de representantes da política de mineração peruana, a segunda abordagem utiliza a Análise de Conteúdo de Bardin (2009), para examinar os artigos relacionados à política de mineração entre as principais revistas especializadas do setor–Mineria e Desde Adentro. Foram utilizadas também categorias de análise constantes e convergentes ao conceito de desenvolvimento para orientar a presente pesquisa. Finalmente as conclusões sugerem que as políticas de mineração reproduzidas pelas autoridades do Estado peruano introduziram práticas discursivas sobre desenvolvimento sustentável e que essas se mantêm relacionadas com as novas ordens de discurso: Responsabilidade Social, Minerção Sustentável, Mineração moderna, Gestão ambiental.
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Mode of access: Internet.
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Owing to continuous advances in the computational power of handheld devices like smartphones and tablet computers, it has become possible to perform Big Data operations including modern data mining processes onboard these small devices. A decade of research has proved the feasibility of what has been termed as Mobile Data Mining, with a focus on one mobile device running data mining processes. However, it is not before 2010 until the authors of this book initiated the Pocket Data Mining (PDM) project exploiting the seamless communication among handheld devices performing data analysis tasks that were infeasible until recently. PDM is the process of collaboratively extracting knowledge from distributed data streams in a mobile computing environment. This book provides the reader with an in-depth treatment on this emerging area of research. Details of techniques used and thorough experimental studies are given. More importantly and exclusive to this book, the authors provide detailed practical guide on the deployment of PDM in the mobile environment. An important extension to the basic implementation of PDM dealing with concept drift is also reported. In the era of Big Data, potential applications of paramount importance offered by PDM in a variety of domains including security, business and telemedicine are discussed.
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Background: The integration of sequencing and gene interaction data and subsequent generation of pathways and networks contained in databases such as KEGG Pathway is essential for the comprehension of complex biological processes. We noticed the absence of a chart or pathway describing the well-studied preimplantation development stages; furthermore, not all genes involved in the process have entries in KEGG Orthology, important information for knowledge application with relation to other organisms. Results: In this work we sought to develop the regulatory pathway for the preimplantation development stage using text-mining tools such as Medline Ranker and PESCADOR to reveal biointeractions among the genes involved in this process. The genes present in the resulting pathway were also used as seeds for software developed by our group called SeedServer to create clusters of homologous genes. These homologues allowed the determination of the last common ancestor for each gene and revealed that the preimplantation development pathway consists of a conserved ancient core of genes with the addition of modern elements. Conclusions: The generation of regulatory pathways through text-mining tools allows the integration of data generated by several studies for a more complete visualization of complex biological processes. Using the genes in this pathway as “seeds” for the generation of clusters of homologues, the pathway can be visualized for other organisms. The clustering of homologous genes together with determination of the ancestry leads to a better understanding of the evolution of such process.
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In 2009, the International Commission on Radiological Protection issued a statement on radon which stated that the dose conversion factor for radon progeny would likely double, and the calculation of risk from radon should move to a dosimetric approach, rather than the longstanding epidemiological approach. Through the World Nuclear Association, whose members represent over 90% of the world's uranium production, industry has been examining this issue with a goal of offering expertise and knowledge to assist with the practical implementation of these evolutionary changes to evaluating the risk from radon progeny. Industry supports the continuing use of the most current epidemiological data as a basis for risk calculation, but believes that further examination of these results is needed to better understand the level of conservatism in the potential epidemiological-based risk models. With regard to adoption of the dosimetric approach, industry believes that further work is needed before this is a practical option. In particular, this work should include a clear demonstration of the validation of the dosimetric model which includes how smoking is handled, the establishment of a practical measurement protocol, and the collection of relevant data for modern workplaces. Industry is actively working to address the latter two items.
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The Koyukuk Mining District was one of several northern, turn of the century, gold rush regions. Miners focused their efforts in this region on the Middle Fork of the Koyukuk River and on several of its tributaries. Mining in the Koyukuk began in the 1880s and the first rush occurred in 1898. Continued mining throughout the early decades of the 1900s has resulted in an historic mining landscape consisting of structures, equipment, mining shafts, waste rock, trash scatters, and prospect pits. Modern work continues in the region alongside these historic resources. An archaeological survey was completed in 2012 as part of an Abandoned Mine Lands survey undergone with the Bureau of Land Management, Michigan Technological University, and the University of Alaska Anchorage. This thesis examines the discrepancy between the size of mining operations and their respective successes in the region while also providing an historical background on the region and reports on the historical resources present.
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M. Belidor's New Method of mining. To which is added, M. Vallier's Dissertation on countermines.
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v. I. The modern democracy, the citizen and the law - Legal ethics - Law : its origin, nature, development - Courts : federal and state - Law of contracts -- v. 2. Law of torts -- v. 3. Criminal Law - Law of criminal procedure - Law of persons and domestic relations -- v. 4. Personal property and bailments - Law of liens and pledges - Law of agency - Law of sales of personal property -- v. 5. Law of real property -- v. 6. Law of descent and distribution, wills and administration, guardian and ward - Law of landlord and tenant - Law of irrigation and water rights - Law of mines and mining -- v. 7. Equity - Law of trusts - Law of quasi-contacts - Law of estoppel -- v. 8. Law of negotiable instruments - Law of suretyship and guaranty - Law of mortgages : real and chattel - Interpretation of statutes -- v. 9. Law of private corporations - Law of partnership - law of banks, banking and trust companies - Law of receivers -- v. 10. Pleadings in civil actions at common law and under modern statutes - Practice in civil actions - Law of equity pleading - Law of evidence - Laws of attachment and garnishments - Law of judgments and executions - Law of extraordinary remedies - Law of habeas corpus -- v. 11. Constitutional law : definitions and general principles - Organization and powers of the United States Government - Constitutional guaranties of fundamental rights - Eminent domain - Taxation - Naturalization -- v. 12. Conflict of laws - International law - Law of interstate commerce - Law of bankruptcy - Law of patents - Law of copyright - Law of trademarks - Unfair competition and good-will -- v. 13. Law of public service companies, especially common carriers - Law of municipal corporations - Law of public officers and elections - Parliamentary law -- v. 14. Law of damages - Law of insurance - Admiralty law - Medical jurisprudence - Forms -- v. 15. Blackstone's Commentaries.
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Modern IT infrastructures are constructed by large scale computing systems and administered by IT service providers. Manually maintaining such large computing systems is costly and inefficient. Service providers often seek automatic or semi-automatic methodologies of detecting and resolving system issues to improve their service quality and efficiency. This dissertation investigates several data-driven approaches for assisting service providers in achieving this goal. The detailed problems studied by these approaches can be categorized into the three aspects in the service workflow: 1) preprocessing raw textual system logs to structural events; 2) refining monitoring configurations for eliminating false positives and false negatives; 3) improving the efficiency of system diagnosis on detected alerts. Solving these problems usually requires a huge amount of domain knowledge about the particular computing systems. The approaches investigated by this dissertation are developed based on event mining algorithms, which are able to automatically derive part of that knowledge from the historical system logs, events and tickets. ^ In particular, two textual clustering algorithms are developed for converting raw textual logs into system events. For refining the monitoring configuration, a rule based alert prediction algorithm is proposed for eliminating false alerts (false positives) without losing any real alert and a textual classification method is applied to identify the missing alerts (false negatives) from manual incident tickets. For system diagnosis, this dissertation presents an efficient algorithm for discovering the temporal dependencies between system events with corresponding time lags, which can help the administrators to determine the redundancies of deployed monitoring situations and dependencies of system components. To improve the efficiency of incident ticket resolving, several KNN-based algorithms that recommend relevant historical tickets with resolutions for incoming tickets are investigated. Finally, this dissertation offers a novel algorithm for searching similar textual event segments over large system logs that assists administrators to locate similar system behaviors in the logs. Extensive empirical evaluation on system logs, events and tickets from real IT infrastructures demonstrates the effectiveness and efficiency of the proposed approaches.^
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Acid drainage influence on the water and sediment quality was investigated in a coal mining area (southern Brazil). Mine drainage showed pH between 3.2 and 4.6 and elevated concentrations of sulfate, As and metals, of which, Fe, Mn and Zn exceeded the limits for the emission of effluents stated in the Brazilian legislation. Arsenic also exceeded the limit, but only slightly. Groundwater monitoring wells from active mines and tailings piles showed pH interval and chemical concentrations similar to those of mine drainage. However, the river and ground water samples of municipal public water supplies revealed a pH range from 7.2 to 7.5 and low chemical concentrations, although Cd concentration slightly exceeded the limit adopted by Brazilian legislation for groundwater. In general, surface waters showed large pH range (6 to 10.8), and changes caused by acid drainage in the chemical composition of these waters were not very significant. Locally, acid drainage seemed to have dissolved carbonate rocks present in the local stratigraphic sequence, attenuating the dispersion of metals and As. Stream sediments presented anomalies of these elements, which were strongly dependent on the proximity of tailings piles and abandoned mines. We found that precipitation processes in sediments and the dilution of dissolved phases were responsible for the attenuation of the concentrations of the metals and As in the acid drainage and river water mixing zone. In general, a larger influence of mining activities on the chemical composition of the surface waters and sediments was observed when enrichment factors in relation to regional background levels were used.