نتایج جستجو برای: haulage systems
تعداد نتایج: 1183556 فیلتر نتایج به سال:
Many factors influence the fatigue state of human beings, and has a significant adverse effect on health safety haulage operators in mine. Among various monitoring systems mine operations, currently, Percentage Eye Closure (PERCLOS) is common. However, work other environmental haul truck drivers; PERCLOS do not consider these their modeling fatigue. Therefore, factors’ impact individual operati...
The dominant working structure of an underground mine is a set of interconnected tunnels which provides access to ore zones and haulage of ore from the designated ore zones to the mill. This set of interconnected tunnels forms a network. We describe a mathematical network model and the modelling features of our two software tools for designing underground mine layouts that minimise associated c...
The study examined the risk perception influence on drivers’ behaviour (violations) among haulage companies in Rivers State, Nigeria. A total of 210 copies questionnaire was administered 20 and retrieved were analysed using descriptive inferential statistics such as frequency counts, percentage spearman rank. findings revealed that drivers hardly ever involve violations “pull out a junction so ...
in the first chapter we study the necessary background of structure of commutators of operators and show what the commutator of two operators on a separable hilbert space looks like. in the second chapter we study basic property of jb and jb-algebras, jc and jc-algebras. the purpose of this chapter is to describe derivations of reversible jc-algebras in term of derivations of b (h) which are we...
Efficient methods to model and optimise the design of open cut mines have been known for many years. The design of the infrastructure of underground mines has a similar potential for optimisation and strategic planning. Over the last five years our group has developed two pieces of software to tackle this problem – UNO (Underground Network Optimiser) and DOT (Decline Optimisation Tool). The ide...
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