Personnel scheduling is basically a type of that determines which employee will work and when, taking into account the needs industry employees. intertwined with shift problems in systems. In many industries, assignment employees to shifts during day, determination relief breaks meal are an important factor for while meeting changing workforce needs. The main purpose this study schedule machini...

The London Underground Diagram (LUD) is a cognitive artifact and a well-known example of representational efficiency, having been copied by urban transportation systems worldwide. Here we describe the design of the LUD as an example of cognitive niche construction happening through iconic meaning of a problem space. We argue that the LUD's meaning is grounded on the offer of opportunities for a...

Shuttle cars form a part of the standard equipment employed by the mining Industry In the transportation of coal when using the room-and-plller method for extracting coal from underground seams. These cars are subject to frequent failure, so the problem of assigning shuttle cars to sections of the mine is considered in this paper, with the objective of maximizing expected output. A particularly...

Over the past several years, ground penetrating radar (GPR) systems have been developed and improved upon to enable the accurate mapping of underground utilities and other structures. Many companies now consider the use of GPR a standard process in their Subsurface Utility Engineering (SUE) investigations. Now systems have been introduced that deploy multiple GPR antennas on one platform to all...

Belt conveyors are presently the most common transportation machines used in surface and underground mining [...]

Compared to opencut mining, underground coal mining is more common in Australia due to its lesser impact on the environment. Although there are several underground mining methods, such as the longwall, pillar, bord, and miniwall, longwall mining is the most commonly used method due to its high efficiency. However, longwall mining does lead to significant ground subsidence. Mining subsidence is ...

Original scientific papers The trackless rubber tyred vehicle (TRTV) is an important transporting equipment of underground coal mine auxiliary transportation system in the world. Presently, most TRTVs are driven by flameproof diesel engine. However, few researches were focused on their dynamic performance in the past. In this paper, the characterizing parameters and influencing factors of the d...