نتایج جستجو برای: mineral industry

تعداد نتایج: 257253  

ژورنال: سلامت کار ایران 2018

Background and aims: Attention to the general health (physical, mental and social) of staff is very important at the beginning of recruitment and in the period of their working life. Therefore, a study of reliability and validity of Persian version of the General Health Questionnaire (60- Items) was performed for industry staff (Mines and Mineral Industries) of Iran in 2016. Methods: 390 out...

2012
B. P. OSBORNE V. J. OSBORNE M. L. KRUGER

SRK Consulting (UK) Limited (SRK) is an associate company of the international group holding company, SRK Consulting (Global). SRK provides a comprehensive range of consulting services to the resource industry. Consulting services are for mineral resource projects ranging from exploration, development and exploitation through to closure, and in the fields of geology, mining, infrastructure, bio...

Journal: :Radiation protection dosimetry 2007
Lígia M Q C Julião Dunstana R Melo Wanderson O Sousa Maristela S Santos Paulo César Fernandes Maria Luiza D P Godoy

In Brazil there are many regions where the extraction mining and processing of ores containing elements of great economical importance as tin, niobium and tantalum. Some of these ores have uranium and thorium natural decay series associated. This study was carried out in a niobium mine, where is obtained concentrates of niobates-tantalates, cassiterite and zirconite. The aim of this study is th...

کوهساری, امیرحسین, محمدتراب, فرهاد ,

Montmorillonite is the main bentonite forming mineral which has special characteristics such as suspension, swelling and colloidal properties. It can absorb water to become larger in volume. Good absorbents are extensively used in industry eithersimply dried or after chemical activation. The chiefconsumer of these clays is the oil refinering industry whichuses them to purify fractionation pr...

2013
Jianqun Xiang Yunzhong Liu Dan Dong Meng Zhang

Yunnan province is rich of mineral resources and the mining industry is the pillar industry in Yunnan. But with the development of mining economy, the problems of the ecological environmental damage have come out. Under the mechanism of ecological environment compensation, the mining economic development in Yunnan needs to deal well with the problems of environmental protection. According to th...

2011
Kwesi Amponsah-Tawiah

Mining has become a controversial business everywhere. Issues of mining are in the wake because of the increasing demands for mineral products and diminishing nature of such minerals in the West. This seemingly opportunity for developing countries like Ghana which have mineral deposits comes with its accompanying repercussions. This paper looks at the general mining environment as a whole, narr...

Journal: :international journal of business and development studies 0

empirical studies have shown that the size distribution of firms can be described as a lognormal or pareto distribution. however, these studies have focused on developed countries and little attention has been devoted to developing countries. using the variable of number of employees as a measure of firm size, this paper investigates the shape of firm size distribution in the food & beverages i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید