PROBLEM Operators of roof bolting machines in underground coal mines do so in confined spaces and in very close proximity to the moving equipment. Errors in the operation of these machines can have serious consequences, and the design of the equipment interface has a critical role in reducing the probability of such errors. METHODS An experiment was conducted to explore coding and directional...

Contractor selection is one of the most important problem in supply chain and itsstrongly effect on firm`s performance. Because a significant amount of auniversity`s budget assigns to construction contracts, contractor selection is animportant problem for the financial status of universities. Since Contractor selectionis a multi-criteria decision making problem (MCDM), lots of methods proposed ...

This paper explores the optimal number of unique jobs for an industrial enterprise by using computer simulations to reduce overall costs creating and operating these through staff remuneration optimization. The study utilizes author's mathematical models workers' behavior in a stimulating environment optimization similar used enterprises. employs computational mathematics modeling analyze poten...