نتایج جستجو برای: zhangchen mining area
تعداد نتایج: 663218 فیلتر نتایج به سال:
This study seeks to address the problems of major geo-environmental hazards caused by high-intensive coal mining in China’s western eco-environment frangible area including strong mining pressure, surface subsidence, soil and water loss, and land desertification. Using the high-intensive mining at the Xiao-jihan Coal Mine, this paper investigates the compaction characteristics of aeolian sand-b...
Multi-database mining is an important research area because (1) there is an urgent need for analyzing data in different sources, (2) there are essential differences between monoand multi-database mining, and (3) there are limitations in existing multi-database mining efforts. This paper designs a new multidatabase mining process. Some research issues involving mining multi-databases, including ...
Multi-database mining is an important research area because (1) there is an urgent need for analyzing data in different sources, (2) there are essential differences between monoand multi-database mining, and (3) there are limitations in existing multi-database mining efforts. This paper designs a new multidatabase mining process. Some research issues involving mining multi-databases, including ...
With the explosive growth of data available on the Internet, a recent area of investigation called Web Mining has arise. In this paper, we will study general aspects of this area, principally the process of Web Usage Mining where log files are analyzed. These files register the activity of the user when interact with the Web. In the Web Usage Mining, different techniques of mining to discover u...
PURPOSE This study investigates health disparities for adults residing in a mountaintop coal mining area of Appalachian Kentucky. Mountaintop mining areas are characterized by severe economic disadvantage and by mining-related environmental hazards. METHODS A community-based participatory research study was implemented to collect information from residents on health conditions and symptoms fo...
Tremendous growth of the web world incorporates application of data mining techniques to the web logs. Data Mining and World Wide Web encompasses an important and active area of research. Web log mining is analysis of web log files with web pages sequences. Web mining is broadly classified as web content mining, web usage mining and web structure mining. Web usage mining is a techniques to disc...
The potential effects of proposed lead-zinc mining in an ecologically sensitive area were assessed by studying a nearby mining district that has been exploited for about 30 yr under contemporary environmental regulations and with modern technology. Blood and liver samples representing fish of three species (largescale stoneroller, Campostoma oligolepis, n=91; longear sunfish, Lepomis megalotis,...
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