Top-coal caving technology is a productive and efficient method in modern mechanized coal mining, the study of coal-rock recognition is key to realizing automation in comprehensive mechanized coal mining. In this paper we propose a new discriminant analysis framework for coal-rock recognition. In the framework, a data acquisition model with vibration and acoustic signals is designed and the cav...

The importance of climatic change on the establishment and differentiation of high-latitude species is largely unknown. Biological effects of historic climate change can be determined from historic signals in genetic data. The rock sandpiper (Calidris ptilocnemis) is a good test case for examining these biological effects because it has a known sister species, the purple sandpiper (Calidris mar...

Objective: PDE5 inhibitors represent the first line therapy for treatment of ED. However, diabetic patients have poorer response compared with normal patients. The aim of this study was to determine whether taurine, a sulfurcontaining amino acid, affects diabetic erectile dysfunction. Methods: Type 1 diabetes mellitus was induced in male rats by streptozotocin (60 mg/kg, intraperitoneally). Aft...

rock sawability prediction and determination of effective parameters are important in the cost estimation and the planning of the stone factories. an accurate estimation of rock sawability and performance prediction of sawing machine helps to make the planning of the rock sawing projects more efficient. it is necessary to predict the rock sawability and determine the effective parameters to ach...

The use of TLS application for forecasting of possible rock falls is the main aim of this research, whose intermediate steps have been already presented in previous publications. Through some experiences carried out in monitoring of a few rock faces in Italian Prealps, the whole process to extract changes and to detect deformations of their shape along time is outlined. All the steps of the pro...

This paper describes the use of lichen chemistry to assess airborne tungsten and cobalt in Fallon, Nevada, where a cluster of childhood leukemia has been on going since 1997. Lichens and their rock substrates were collected from Rattlesnake Hill within Fallon as well as from four different rock outcrops located north, east, south, and west of Fallon and at least 20 km away from the town center....

ABSTRACT: The authors have proposed and discussed temporary storage of heated water in openings excavated in rock mountain from the viewpoints of multiple-utilization of land, environmental safeguards, energy conservation, etc. When used for heated-water storage, the rock mass around the openings will receive the effects of the heated water. In this study, a uniaxial compression creep test at h...