نتایج جستجو برای: including geology and mine scientists

تعداد نتایج: 16852490  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1390

this study investigated the functions, types and frequencies of code switching in the teachers and students discourse in elt classrooms. to this end, the participants of this study including two groups of teachers and students were selected. the first group of participants were two efl teachers teaching general english courses (at two different levels of proficiency) in an institutional program...

Journal: :The Journal of the Geological Society of Japan 1940

Journal: :Sustainability 2023

In order to sustainably use coal resources and reduce mine accidents, the stability evaluation of roadway roofs is particularly important. The existing methods roof control application are greatly disjointed, relationship between early warning ignored, an intelligent calculation system lacking. Based on successful roof-cutting non-pillar mining method in various engineering geology conditions, ...

Journal: :Scientific Investigations Map 2021

First posted November 2, 2021 For additional information, contact: Contact HVOHawaiian Volcano ObservatoryU.S. Geological Survey1266 Kamehameha AvenueSuite A-8Hilo, HI 96720 This geologic map and its digital databases present the geology of eight major islands State Hawaiʻi. The should serve as a useful guide to anyone studying setting history Hawai‘i, including ground- surface-water resources,...

2011
Justin Cable Warren Justin C. Warren

This study involves seismic monitoring of a deep coal mine. The purpose is to examine the processes responsible for induced seismicity. A seismic network consisting of five threecomponent short-period seismometers located above the mine recorded the seismic data. The events discussed here occurred from March 1, 2009 until April 7, 2011 during the mining of three longwall panels and the data was...

Journal: :محیط شناسی 0
نرگس حاج کاظمیها دانشجوی دکتری علوم محیط زیست، دانشکدۀ محیط زیست و انرژی، دانشگاه آزاد، واحد علوم و تحقیقات تهران، محمود شریعت استاد، دانشکدۀ محیط زیست و انرژی، دانشگاه آزاد، واحد علوم و تحقیقات تهران مسعود منوری استادیار، دانشکدۀ محیط زیست و انرژی، دانشگاه آزاد، واحد علوم و تحقیقات تهران محمد عطایی استاد، دانشکدۀ مهندسی معدن، دانشگاه صنعتی شاهرود

introduction development of natural resources and mining activities are prerequisite for economic and industrial growth in many countries. in many cases, such mining areas lie within residential or agricultural lands or natural habitats intensifying the contradiction between land use and environmental protection. different components of mining activities including exploration, extraction and pr...

Journal: :Environmental geochemistry and health 2011
Hyun-Ho Kwon Yon-Sik Shim Jin-soo Lee Min Jang Kyoung-woong Kim

It is our great honor to edit this special issue of Environmental Geochemistry and Health (EGAH), especially with the special theme of mine reclamation and suitable management for heavy metals. This issue has been made up with the extended works of oral or poster presentations that were given at the 2009 International Symposium on Mine Reclamation held cooperatively by the Korea Mine Reclamatio...

2010
A. SMIT G. LANE

This paper discusses the optimization of the mine design and scheduling as it is applied at Anglo Platinum and more specifically, the rationale for and use of the Anglo Platinum Mine Optimisation Tool (APMOT), which has been jointly developed between Anglo Platinum and Cyest over the past four years. Mine optimization is an inherently iterative process since all facets of mine design and schedu...

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