Search results for keyword: disasters
Office of the United Nations High Commissioner for Refugees
United Nations High Commissioner for Refugees
The United Nations High Commissioner for Refugees (UNHCR) is an international organization dedicated to protecting and assisting refugees and other displaced people. Established over sixty years ago as a response to the displacement of millions of p......
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Avery
underground building
Introduction
Underground construction can provide a large number of benefits over traditional aboveground construction, such as reduced noise, aesthetic enhancements and thermal insulation. As construction costs and materials become increasingly expensive, the advantages of underground constructi......
Mine Flood Signs
Mining has always been an integral part of the economy in many nations around the globe. Its importance still remains today, although environmental concerns have been raised when it comes to the impact that mining has on the environment. One such particularly concerning issue is the indication of ......
Layer Mining Technology
Layer Mining Technology
Mining has been a valuable way of obtaining resources since the development of civilization. The method of extracting minerals from the ore has undergone many developments since its initial days of digging ore with simple tools.
In recent years, there has been a lot of fo......
Mine shaft engineering design
Mine Shaft and Tunnel Engineering Design
Mine shaft and tunnel engineering design is the process of creating safe and efficient pathways or passages underground. Mine shafts and tunnels may be used to transport people and materials, drain water or gas, or used to store the raw materials of a mine......
mine flood
Mining is an activity that extracts resources, such as coal and other minerals, from the earth. Mining can have a profound impact on the environment, both in terms of the destruction of natural habitats, and the release of dangrious chemicals and particles into the air and water. One particularly ......
Deep pit mine ventilation
The open pit mining has been an effective way to produce minerals all over the world. Open pit mining is an extraction of minerals or rocks from surface pits by means of open pits which are dug into the earth’s surface. It is primarily used to get access to ore deposits, from which metals and oth......
Underground engineering reverse method
Underground construction is the process of creating a functional and safe underground environment to provide services associated with construction activities. Underground construction work involves much hazardous work, such as tunneling, drilling, and masonry, and typically requires advanced skill......
mining face
Mining is a recognized way to acquire valuable materials for usage. The activity involves the extraction of ore, minerals and other resources from beneath the surface of the earth. These activities may include surface and underground mining. Surface mining involves digging into the grounds surface......
Mathematical Model of Crusher
Pulverizer Mathematics Model
Pulverizers are machines used in industrial settings to break down materials into a fine powder. The process of grinding materials is achieved through the use of a variety of mathematical and physical models. These models are used to determine the efficiency of the pu......
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