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para mining » piura mining (Expander búsqueda), data mining (Expander búsqueda), peru mining (Expander búsqueda)
1
documento de trabajo
Publicado 2007
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El sector minero es uno de los de más rápido crecimiento en el Perú y actualmente es responsable de más del 50% de las exportaciones totales peruanas donde más del 30% de la inversión directa extranjera ha sido colocada. Asimismo, es el sector más regulado en el Perú debido a la presión que ejercen diversos grupos de interés. Debido a ello, entre otras razones, muchas empresas mineras decidieron lograr la certi-ficación ISO 14001. Este estudio presenta evidencia a partir de once auditorias ambientales referidas a la norma ISO 14001 y efectuadas a cuatro empresas mineras y siete subcontratistas mineras dedicadas a la labor de exploración, explotación y extracción. Se encontraron desviaciones significativas relacionadas con los controles operativos que conducían a impactos medioambientales negativos. Desafortunadamen-te la respuesta más común a estas desviaciones fue la ad...
2
artículo
Publicado 2007
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In the present work, the components that participate in the generation of acid mine drainage, in residues that come from the mining industry, were studied, and it was developed in the Faculty of Engenharia do Porto, in Portugal. Geochemical and physical characterization in each of the residuals, in addition to applying static and kinetic methods to evaluate the prediction of acid drainage generation, as an initiative in the research, the respirometry technique was applied, the purpose of which is to quantify the concentration. of oxygen and carbon dioxide that are consumed in the oxidation reaction in wastes that are susceptible to general acid drainage, this evaluation allows us to identify the initial participation of the microorganisms of the genus thiobacillus that participate as catalysts in the reaction.
3
artículo
Publicado 2019
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This article presents a methodology that applies natural language processing and classification algorithms by using data mining techniques, and incorporating procedures for validation and verification of significance. This is conducted according to the analysis and selection of data and results based on quality statistical analysis, which guarantees the effectiveness percentage in knowledge construction. The analysis of computer incidents within an educational institution and a standardized database of historical computer incidents collected by the Service Desk area is used as case study. Such area is linked to all information technology processes and focuses on the support requirements for the performance of employee activities. As long as users’ requirements are not fulfilled in a timely manner, the impact of incidents may give rise to work problems at different levels, making it d...
4
artículo
Publicado 2019
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This article presents a methodology that applies natural language processing and classification algorithms by using data mining techniques, and incorporating procedures for validation and verification of significance. This is conducted according to the analysis and selection of data and results based on quality statistical analysis, which guarantees the effectiveness percentage in knowledge construction. The analysis of computer incidents within an educational institution and a standardized database of historical computer incidents collected by the Service Desk area is used as case study. Such area is linked to all information technology processes and focuses on the support requirements for the performance of employee activities. As long as users’ requirements are not fulfilled in a timely manner, the impact of incidents may give rise to work problems at different levels, making it d...
5
tesis de grado
Publicado 2022
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Durante los últimos años se ha observado una enfermedad con mayor incidencia en niños y adolescentes, siendo esta la debilidad ósea, la cual puede ser el inicio de enfermedades óseas crónicas y futuro cáncer de huesos, es por ello que nuestro objetivo es detectar la debilidad ósea en niños, niñas y adolescentes a través de indicadores antropométricos en las zonas alto andinas del Perú, específicamente en la ciudad de Arequipa. Aplicando diversas técnicas de minería de datos que permiten un análisis profundo y la predicción que estos algoritmos indican después del entrenamiento. Se trabajó con datos de 1511 personas entre niños y adolescentes. Se utilizó la metodología Knowledge Discovery in Databases para realizar el pre-entrenamiento de datos. Al aplicar los algoritmos de clasificación se obtuvo que 2 de cada 5 personas entre niños y adolescentes padecen debilid...
6
artículo
The study minimizes the cycle waiting time of loading and hauling equipment between loading points of the underground mining operation and unloading points on surface. For this purpose the existing loading and hauling system is first analyzed. Present system consists of four underground loading points and 4 unloading spots on surface. The waiting cost is estimated and then the increment in loading points underground is proved for reducing haulage cost which is a bearing component of the mining cost. By applying queuing techniques the possible reduction in waiting cost is obtained by increasing the number of loading points. The information gathered comes from loading and hauling times measured at site. Evaluated variables were number of loading points vs. waiting time cost of haulers and unit cost of underground ore and waste bins.
7
artículo
Publicado 2006
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To significantly minimize the environmental impact taken place by the system of having underground mined, it has to arrange the solid residuals and the tailing inside of the mines, occupying the open cavities originated by the exploitation of the ore. This hypothesis demonstrated, the viability of minimizing the environmental impact generate for the mining industry, based on the theoretical mark of the quality mining exploitation. This research demonstrates that if the economic ore is extracted, but the bargain and but the strictly necessary of rock to give access to the machinery, we’ll be able to have inside mines 86% to 88% tailing in new mines, and 100% in old mines as Casapalca mine, with derisive investment of U.S.$ 6 109 000.00, but being achieved great profitability with a Net Present Value (NPV) of U.S.$ 28 400 000.00, and with Internal Rate of Return (IRR) of 465%. In undergr...
8
artículo
Publicado 2006
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To significantly minimize the environmental impact taken place by the system of having underground mined, it has to arrange the solid residuals and the tailing inside of the mines, occupying the open cavities originated by the exploitation of the ore. This hypothesis demonstrated, the viability of minimizing the environmental impact generate for the mining industry, based on the theoretical mark of the quality mining exploitation. This research demonstrates that if the economic ore is extracted, but the bargain and but the strictly necessary of rock to give access to the machinery, we’ll be able to have inside mines 86% to 88% tailing in new mines, and 100% in old mines as Casapalca mine, with derisive investment of U.S.$ 6 109 000.00, but being achieved great profitability with a Net Present Value (NPV) of U.S.$ 28 400 000.00, and with Internal Rate of Return (IRR) of 465%. In undergr...
9
artículo
Publicado 2002
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On-site mining is a poorly understood technique for recovering minerals and metal elements from mineral deposits. It comprises methods of dissolving in water and leaching using aqueous chemical compounds that are injected into mineral deposits. There are a large number of minerals that can be recovered by these two methods: By dissolution taking advantage of the solubility in water and the massive form of geological occurrence; by leaching on site using chemical solutions similar to surface leaching. By leaching in situ, metals can be recovered from mineral deposits in which conventional methods of mechanized mining are not applicable due to their low grade, depth of location, dissemination and which have a high degree of natural permeability or artificially created by techniques such as hydrofracturing of the Deposit. In the past it was successfully applied in uranium mineral deposits a...
10
artículo
Publicado 2002
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On-site mining is a poorly understood technique for recovering minerals and metal elements from mineral deposits. It comprises methods of dissolving in water and leaching using aqueous chemical compounds that are injected into mineral deposits. There are a large number of minerals that can be recovered by these two methods: By dissolution taking advantage of the solubility in water and the massive form of geological occurrence; by leaching on site using chemical solutions similar to surface leaching. By leaching in situ, metals can be recovered from mineral deposits in which conventional methods of mechanized mining are not applicable due to their low grade, depth of location, dissemination and which have a high degree of natural permeability or artificially created by techniques such as hydrofracturing of the Deposit. In the past it was successfully applied in uranium mineral deposits a...
11
artículo
Publicado 2023
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Uno de los problemas en la mina Yauricocha es que los tajeos de producción de las cimbras de acero fallan en un periodo menor de 45 a 60 días y la consecuencia es el incremento de los costos de sostenimiento, el retraso de la producción del mineral; porque se tiene que paralizar la explotación para instalar las cimbras de refuerzo, e incluso la pérdida de mineral. De esta manera, se concentra mucho esfuerzo para realizar el mismo minado masivo del método Subleven Caving.Para los tajeos de producción es necesario mantener una sección operativa mínima de tres metros, para el ingreso de los cargadores de bajo perfil de 6 y 3 yd3 de capacidad, que nos permitirá recuperar el mineral. Para lograr este objetivo se plantea aplicar un nuevo diseño de sostenimiento en la minería. El arco peruano es un elemento en forma de arco de concreto armado con fierro de acero estructural de alta ...
12
artículo
Publicado 2004
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The present article emphasizes the use of data mining for the discovery of knowledge, with the purpose of contributing in taking tactical decisions and strategies within an organization providing an automated sense to generate knowledge. Techniques, the predictive power of statistical models and the contribution of the various fields of the research have been included.
13
artículo
Publicado 2004
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The present article emphasizes the use of data mining for the discovery of knowledge, with the purpose of contributing in taking tactical decisions and strategies within an organization providing an automated sense to generate knowledge. Techniques, the predictive power of statistical models and the contribution of the various fields of the research have been included.
14
tesis de grado
Diabetes has become such a common, but deadly, chronic health problem that it has _x000D_ increased dramatically in recent years. About 50% of all people with diabetes are not _x000D_ diagnosed due to its long-term asymptomatic phase, which is why detecting diabetes in an _x000D_ early phase is of vital importance. Science has advanced so much in the field of health that _x000D_ data mining classification techniques have been well accepted by the scientific community _x000D_ for the predictive model of disease risk. In the present investigation, a set of 520 data has _x000D_ been used, which information was collected through a direct survey of patients from the _x000D_ Sylhet Diabetes Hospital in Bangladesh. The respective analysis was carried out using _x000D_ classification algorithms such as Logistic Regression (classical statistical technique) and _x000D_ Support Vector Machine (mach...
15
artículo
Publicado 2012
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In Peru we have mineral deposits on the coast and in the highlands (Peruvian Andes), where you can find mineralization as veins, strata and bodies. Mining companies according to the type of deposit and some criteria choose the method of exploitation. By production volume, can be large mining, medium mining, small-scale and artisanal mining. Following the independence of Peru, nearly all the mines have been abandoned because workers were natural (Indians) of the Inca Empire, who were enslaved by invaders (Spanish) who worked with labor at no cost. When they wanted to restart mining operations, no pawn mine wanted to go to that "go to the mine was going to die." Until the rulers of the time (1895) offered many advantages to foreigners so they can exploit mines in Peru, reason comes to Peru in 1905 an American company in 1915 comes to form the Cerro de Pasco Corporation, which operated unti...
16
artículo
Publicado 2012
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In Peru we have mineral deposits on the coast and in the highlands (Peruvian Andes), where you can find mineralization as veins, strata and bodies. Mining companies according to the type of deposit and some criteria choose the method of exploitation. By production volume, can be large mining, medium mining, small-scale and artisanal mining. Following the independence of Peru, nearly all the mines have been abandoned because workers were natural (Indians) of the Inca Empire, who were enslaved by invaders (Spanish) who worked with labor at no cost. When they wanted to restart mining operations, no pawn mine wanted to go to that "go to the mine was going to die." Until the rulers of the time (1895) offered many advantages to foreigners so they can exploit mines in Peru, reason comes to Peru in 1905 an American company in 1915 comes to form the Cerro de Pasco Corporation, which operated unti...
17
artículo
Publicado 2006
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Introduction: Anthropometry is the essential basis for ergonomics, mainly human body’s measures referred to size and shapes. Peruvian mining is located at high altitudes, habitat of ethnic Andean men showing different anthropometry to the sea level man. Objectives: To characterize anthropometrics of a Peruvian Andean Mountain mining workers, native men population, residing and living at 3 000 masl and more. Design: Descriptive, prospective and observational study. Setting: La Oroya Centromin-Peru Enterprise’s Occupational Health Service and its four mining satellite hospitals. Participants: Three thousand healthy native 21 to 60 year-old male mining workers residing in altitudes above 3 500 masl. Interventions: The sample was generated by conglomerate’s random aleatory polyphase model. The study was done between 1984-1994. For normality hypothesis statistical certainty we applied S...
18
tesis de grado
Publicado 2021
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Lately the level of competition between companies in the light automotive industry is reaching a very high level, due to the various strategies developed by many competitors. Our study seeks to strengthen the evaluation of forecasts to improve the organization's capability to anticipate future events in important business processes, such as sales and maintenance services. To achieve this objective, investigations related to Data Mining techniques were consulted, in order to perform an information analysis with a predictive approach. Our research involves designing different models applying methods such as regressions, neural networks and decision trees, to a historical database of an automotive organization, previously selecting data using techniques such as the correlation matrix and PCA (Principal Component Analysis). Finally, an evaluation is carried out on the results obtained after ...
19
artículo
The periods of change and continuous evolution of the information technologies and communication, every time has been reduced, thus we have; today that in the matter of software or computer science programs of application; these enter state of obsolescence in an average of six months from their put into operation. In the last two years the design of new computer science applications have undergone the most important changes in the initial approach for their design, analysis and codifi cation, therefore; ever since Bohem in 1982 warned some techniques related to the software engineering today we observed that these techniques and methodologies of analysis and design of computer science applications have varied signifi cantly in relation to the initial approach. The continuous application of the norms and techniques like CMMI, RUP and ISO have done that these are perfected year to year, ap...
20
artículo
The periods of change and continuous evolution of the information technologies and communication, every time has been reduced, thus we have; today that in the matter of software or computer science programs of application; these enter state of obsolescence in an average of six months from their put into operation. In the last two years the design of new computer science applications have undergone the most important changes in the initial approach for their design, analysis and codifi cation, therefore; ever since Bohem in 1982 warned some techniques related to the software engineering today we observed that these techniques and methodologies of analysis and design of computer science applications have varied signifi cantly in relation to the initial approach. The continuous application of the norms and techniques like CMMI, RUP and ISO have done that these are perfected year to year, ap...
