نتایج جستجو برای: surface mines

تعداد نتایج: 641844  

Journal: :South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde 2009
Chris Bateman

In March last year Churchyard helped facilitate a pivotal petition appealing for urgent intervention to address TB on the mines to then national health minister Barbara Hogan and the Minister of Minerals and Energy Affairs, Buyelwa Sonjica. It was signed by the leading local and international TB control experts and led, he said, to the mining industry taking ‘great offence’. The health policy c...

2012
DE YU ZOU HONG YIN CHEN LI SHENG

Diglyphus isaea Walker (Hymenoptera: Eulophidae) is an important ectoparasitic wasp of many leaf miners. Ability of D. isaea to find hosts placed in artificial mines and for its larvae to pupate when the larva is not in a mine was studied. Artificial mines consisted of slits cut in index card sandwiched between two cover slips. Almost 80% of the neonate larvae of D. isaea located host larvae in...

M. Ataei, M. M Tahernejad R Khalokakaie

Iran has high potential and unique stone reserves in terms of variety of color, texture, quality, and economic value; nevertheless, in spite of growing mine production during the past decade, in many instances this potential has been overlooked. Therefore it is necessary to investigate strategic factors of these mines. The purpose of this study is to evaluate and determine the best strategies f...

Journal: :Drones 2023

The mining industry has recently shown increased interest in drones for routine activities underground and surface mines. Designing a drone coal mines is extremely complicated since the Mine Safety Health Administration (MSHA) tight guidelines any equipment that can be used Due to these criteria, designing exceedingly difficult. This paper explores challenges of creating an intrinsically safe p...

Journal: :Robotics and Autonomous Systems 1998
Kenneth M. Dawson-Howe Tomos G. Williams

This paper presents a new approach to the detection of anti-personnel landmines which is based on the physical detection of landmines using a sharpened probe in a fashion similar to that employed by human deminers. Reviews of current techniques , proposed new sensor technologies, and current uses of robotic devices within landmine detection are presented. This is followed by a description of ou...

Journal: :International Journal of Community Medicine and Public Health 2022

Air quality related to respiratory illness is examined in many settings, including populations that work or reside close sources of pollution. Industry produced pollution from mining and metal manufacturing, natural environmental as the case bushfires large-scale dust storms are examples. We reviewed any available literature data concerning Queensland coal industry its effect on health miners, ...

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