نتایج جستجو برای: shortwall mining

تعداد نتایج: 86652  

In this paper, we report a geospatial assessment of the selected mine sites in the Plateau State, Nigeria. The aim of this work is to determine the impact of mining on the terrain as well as the Land Use/Land Cover (LULC) of the host communities. The Shuttle Radar Topographic Mission (SRTM) is used for the terrain mapping. The derived impact of mining on LULC between 1975 and 2014 is determined...

Journal: :journal of optimization in industrial engineering 0
mohammad hossein fazel zarandi department of industrial engineering, amir kabir university of technology, tehran, iran, abolfazl kazemi department of industrial engineering, amir kabir university of technology, tehran, iran,

decision support systems (dsss) are prevalent information systems for decision making in many competitive business environments. in a dss, decision making process is intimately related to some factors which determine the quality of information systems and their related products. traditional approaches to data analysis usually cannot be implemented in sophisticated companies, where managers need...

Journal: :journal of advances in environmental health research 0
seyed morteza moosavirad department of mining engineering, higher education complex of zarand, kerman, iran.

coagulants exert a significant influence on removing turbidity, tss and cod. this study has examined the effects of poly-aluminium chloride (pac), aluminium sulphate (alum) and ferric chloride on removal of turbidity, tss, cod from greywater in residential complexes of miners working in decorative stone mines. also, a comparison was undertaken with the electrocoagulation system to find out whet...

Journal: :journal of optimization in industrial engineering 2011
abolfazl kazemi elahe mehrzadegan

decision-tree algorithms provide one of the most popular methodologies for symbolic knowledge acquisition. the resulting knowledge, a symbolic decision tree along with a simple inference mechanism, has been praised for comprehensibility. the most comprehensible decision trees have been designed for perfect symbolic data. classical crisp decision trees (dt) are widely applied to classification t...

Journal: :journal of optimization in industrial engineering 2010
mohammad hossein fazel zarandi abolfazl kazemi

decision support systems (dsss) are prevalent information systems for decision making in many competitive business environments. in a dss, decision making process is intimately related to some factors which determine the quality of information systems and their related products. traditional approaches to data analysis usually cannot be implemented in sophisticated companies, where managers nee...

Journal: :international journal of environmental research 0
d. liebenberg unit for environmental sciences and management, north-west university, potchefstroom, 2520, south africa s. claassens unit for environmental sciences and management, north-west university, potchefstroom, 2520, south africa l. van rensburg unit for environmental sciences and management, north-west university, potchefstroom, 2520, south africa

a long-term study was conducted between 1985 and 2003 on rehabilitation trials at sishen ironore mine, south africa, to identify grass species that would survive in the artificial growth medium appliedto the sites, and to determine the most suitable medium for sustainable vegetation growth. vegetationestablishment was tested at slopes of 18° and 34° and with five different cover materials. afte...

Journal: :مدیریت فناوری اطلاعات 0
سعیده علی مردانی دانشجوی کارشناسی ارشد فناوری اطلاعات، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران عبدالله آقایی استاد گروه برنامه‎ریزی و تحلیل سیستم‎ها، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران

rapid growth of networks and social networks results in more access to people’s opinion. these opinions contain useful information. by analyzing these opinions, people’s preferences and their positive and negative opinions about different subjects can be identified. opinion mining is the process of analyzing people’s emotions, feelings and opinions to identify their preferences. in this article...

Journal: :iranian journal of pharmaceutical research 0
mehdi teimouri department of network science and technology, faculty of new sciences and technologies, university of tehran, tehran, iran farshad farzadfar non-communicable disease research center, endocrinology and metabolism population science institute, tehran university of medical sciences, tehran, iran. mahsa soudi alamdari department of network science and technology, faculty of new sciences and technologies, university of tehran, tehran, iran amir hashemi-meshkini department of pharmacoeconomics, faculty of pharmacy, tehran university of medical sciences, tehran, iran parisa adibi alamdari school of medicine, shahid beheshti university of medical sciences, tehran, iran. ehsan rezaei-darzi non-communicable disease research center, endocrinology and metabolism population science institute, tehran university of medical sciences, tehran, iran.

data about the prevalence of communicable and non-communicable diseases, as one of the most important categories of epidemiological data, is used for interpreting health status of communities. this study aims to calculate the prevalence of outpatient diseases through the characterization of outpatient prescriptions. the data used in this study is collected from 1412 prescriptions for various ty...

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