The homunculus made his first appearance in the field of neurology on 1 December 1937, when Wilder Penfield and Edwin Boldrey (Fig. 1) published in Brain a 55-page article entitled Somatic motor and sensory representation in the cerebral cortex of man as studied by electrical stimulation (Penfield and Boldrey, 1937). The article is filled with painstakingly crafted summaries of data sourced fro...

For the development of mining industry and its urgent demand for positioning and navigation technology, three new underground mine positioning and navigation systems based on the existing positioning technologies would be investigated and studied in this paper, where Wireless Ethernet-based navigation system as a new navigation system is first used in underground mine. Three types of positionin...

Digital Object Identifi er 10.1109/MPE.2010.938518 © B R A N D X P IC T U R E S , S T O C K B Y T E N NORTH AMERICA HAS A SIGnificant underground electric distribution system that is nearing the end of its design and service life. The cost of global replacement of aging underground facilities is prohibitive. Consequently, utilities require an enterprise approach to managing underground power ca...

Although underground coal miners are quite susceptible to depressive symptoms due to a highly risky and stressful working environment, few studies have focused on this issue. The purpose of the study was to evaluate the prevalence of depressive symptoms and to explore its associated factors in this population. A cross-sectional survey was conducted in a coal-mining population in northeast China...

One of the methods for dealing with the problem of water shortage and the decline of groundwater levels in the arid areas is the construction of underground dams. It is difficult to make a decision about suitable locations for the construction of underground dams because of the necessity to consider numerous factors. Some of these criteria are hydrological, geological and geomorphologic charact...