The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
There is no unified principle for the description and storage of metadata in the current information system which the coal mine enterprise exists in, neither does it benefit the management and maintenance of system, nor the integration with other system. According to the standards of relevant metadata and the characteristic of coal and gas outburst factors data, this paper proposed the data storage...
The end of fully mechanized caving face is keystone and difficulty on protecting and managing the top. the effect on supporting the end of work face is very importment to mechanical and electrical machine, and very importment to workers' safety. The text analyze the problem of supporting the end at present, and Aiming at these problem, reach and manufact the fully mechanized caving face supporting...
EIA (Environmental impact assessment) and environmental acceptance both are important part of coal mine's environmental management. The demands in EIA period are materials particular in environmental acceptance period. Then environmental acceptance can feed back important informations to EIA. Currently, there is less interaction between these two areas. This article analyzed the current situation...
An automatic speed detection device of coal gas parsing speed based on microcontroller is designed in this paper. The STC12C5A60S2 MCU is the core of the system and the multi-scale segmentation of gas detection gas sensors system is designed in this paper to achieve the purpose of the coal gas parsing speed automatic detection. While a kind of large-capacity SD card data storage unit is designed to...
This paper summarized five differences of mining areas development in the system of market & planned economy system. The conclusion is that under the conditions of market economy, the mining area development according to market laws, give a new understanding of mining resources, implement comprehensive development and scale operation, a coal mining enterprise can develop multiple coal mining areas...
In order to reduce the roof accidents, extend and communicate a great deal of valuable experience and technology in the field of coal mines and roadway supporting, this paper presents the research and development of a information platform, which includes mainly the decision-making of roadway supporting. After comparing the advantages and the disadvantages of three inference modes, case-based reasoning...
Safety warning management is a new method of safety management in coal mine, which helps to ease the prevention shortage and change passive situation facing safety accident. The object on early warning management is greatly important for warning management, which affecting warning results seriously. This paper has constructed safety warning management factors system based on literature summary, expert...
This paper describes the rationale of catastrophe theory, designs the index system of coal mine safety management and establishes the evaluation model of mine safety management based on catastrophe theory. We can see that the level of mine safety management of Pingdingshan Coal Group by applying the evaluation model of mine safety management based on catastrophe theory. The model can objectively and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.