Results 51 to 60 of about 1,915 (220)
Underground potash mine design based on rock mechanics principles and measurements [PDF]
, 1977 PhD ThesisThe design criteria for an underground potash mine are established on the basis of rock mechanics principles and measurements taken at the Cleveland Potash Limited Boulby mine in North Yorkshire, thgland.
Hebblewhite, Bruce K
core
Potash fertilizer to agricultural based economies [PDF]
, 2019 Potash is an indispensable element in agricultural development and innovation. It is relatively cheaper to mine, produce and be imported compared to other fertilizing materials such as nitrogen.
Katovich, Vasili +2 more
core +1 more source
Sustainable Development, EarlyView.ABSTRACT Declining natural resources, rising production costs, and diminishing returns from input‐intensive practices threaten the sustainability of smallholder rice systems in Bangladesh. Using a primal system approach and survey data from 1869 rice‐producing households, this study evaluates technical and allocative inefficiency across major agro ...
Limon Deb +3 more
wiley +1 more source
Fire Risk Analysis in Potash Mines [PDF]
Safety in Technosphere, 2016 The influence of various factors on the fires probability in the potash mines has been evaluated. The most critical flammable devices and objects, and the conditions of ignition have been identified. Scenarios of development for the most dangerous situations have been analyzed, and the fire risks have been assessed.
A. Brom +9 more
openaire +1 more source
From armed roots to airline routes in South America: A dual imprinting perspective
Strategic Management Journal, EarlyView.Abstract Reserch Summary We propose that founding partner relationships can leave distinct imprints on organizations that differ in durability and in how they respond to subsequent changes involving the founding partner. Examining South American airlines founded between 1919 and 1984, we argue and find that such relationships simultaneously create an ...
Kunyuan Qiao +2 more
wiley +1 more source
The geology of potash deposits at PCS Cory mine, Saskatchewan [PDF]
, 1990 Salt anomalies are a common problem to potash mining in Saskatchewan. The geology of the PCS Cory potash mine in the Patience Lake Member of the Prairie Evaporite Formation was studied to attempt to find indicators of proximity to anomalies. Initially, a
Boys, Christopher
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On a snow cover composition in the vicinity of the Verkhnekamsky Salt Deposit
Лëд и снег, 2015 The snow cover chemical composition was investigated on the territory of the Verkhnekamskiy potash-magnesium salt deposit in the zone of influence of atmospheric emissions of Berezniki Potash Mining Complex (Perm Region). The object of researches was the
S. M. Blinov +4 more
doaj +1 more source
Gender &History, EarlyView.ABSTRACT This article argues that marriage was central to historical change in the Yoruba‐speaking region of West Africa during the eighteenth century. It draws on ìtàn, a distinct oral source, to show that conjugality shaped Yoruba processes of urbanisation and political centralisation, gendered divisions of labour and social innovation and creativity.
Insa Nolte
wiley +1 more source
Горные науки и технологии, 2019 Currently, an adverse environmental factor in the Soligorsk mining district is the effect of underground mining on the terrain and landscape. The remarkable thing is that flooding and waterlogging in the undermined territory of the potash mine fields is ...
N. A. Vysotskaya, E. V. Piskun
doaj +1 more source
The Material Basis of 18th‐Century Meissen Porcelain
Archaeometry, EarlyView.ABSTRACT In the summer of 1708, the quest for making hard‐paste porcelain from Saxonian clay and other mineral resources succeeded. This was achieved by applying as its essential ingredient newly discovered pure kaolin from Heidelsberg near Aue, western Saxon Ore Mountains.
Robert B. Heimann
wiley +1 more source