Results 131 to 140 of about 832,680 (294)

Africa 1:62,500, Gold Coast.

open access: yes, 1923
Various editions. Relief shown by contours and spot heights.; "Compiled, drawn and reproduced by the Gold Coast Survey Dept."--Some sheets.; Includes various issues of sheets. Some sheets 1st ed.
Gold Coast. Survey Department.
core  

Alternative lixiviants to cyanide for leaching gold ores

open access: yes, 2016
Over 25 alternative lixiviant processes to cyanide have been tested in the laboratory; some of which have been successful for niche applications. The process conditions, applications and current status of the most attractive are reviewed in this chapter ...
Aylmore, Mark, M.G. Aylmore
core   +1 more source

Digital Transformation on Green Operational Performance: Evidence From the E‐Waste Firm's Perspective

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Digital transformation (DT) is increasingly recognised as essential for improving environmental performance in process‐intensive and hazardous sectors; however, the mechanisms by which digitalisation translates into green operational performance (GOP) and environmental accountability remain insufficiently investigated, particularly in ...
Amila Kasun Sampath Udage Kankanamge   +2 more
wiley   +1 more source

Innovations in gold leaching research and development

open access: yes, 2005
This paper presents two aspects of gold leaching research and development. The first section of the paper covers the development of innovative gold leaching processes.
Hope, G.A.   +5 more
core  

Towards a Socially Inclusive Circular Economy: Evidence From Social Enterprises in Low‐ and Middle‐Income Countries

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Circular economy (CE) and social entrepreneurship (SE) are increasingly recognised as critical pathways for sustainable development, yet CE research often underplays social inclusion, particularly in low‐ and middle‐income countries (LMICs).
Maria L. Granados, Adeyemi Adelekan
wiley   +1 more source

Research on an Innovative Bromination Leaching System for Gold Leaching Technology

open access: yes, 2023
Chao Xu   +4 more
openaire   +1 more source

Achieving Immanent Organizational Ethics: Managing Paradoxical Tensions in Packaging

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Firms face strategic tensions in packaging materials through their conflicting but complementary social, environmental and economic goals in achieving sustainability. Reducing and repurposing plastics, glass, paper and cardboard in agriculture, horticulture and aquaculture is proving a challenge.
Sitong Michelle Chen, Ralph J. Bathurst
wiley   +1 more source

Mild Hydrothermal Stabilization: An Innovative Technology for Improving Whole‐Grain Rice Quality in West Africa and Elsewhere

open access: yesCereal Chemistry, EarlyView.
ABSTRACT Background and Objectives Whole‐grain (brown) rice has superior nutritional quality but is prone to rancidity, primarily caused by endogenous lipases and oxidases. This study evaluated mild hydrothermal stabilization (MHS), comprising grain surface wetting, followed by short‐duration atmospheric‐pressure steaming, applied to two West African ...
Sali A. Ndindeng   +5 more
wiley   +1 more source

Single‐Screw Extrusion of Copra Meal and Distillers Dried Grains With Solubles at Varying Screw Speed and Moisture Content for Aquaculture Feed Applications

open access: yesCereal Chemistry, EarlyView.
ABSTRACT Background and Objectives Copra meal is a byproduct of the coconut oil extraction process and provides an inexpensive source of energy for livestock diets. Single‐screw extrusion was conducted to investigate the effects of varying proportions of copra meal and distillers dried grains with solubles (DDGS) and the corresponding processing ...
Jan Kathleen M. Punzalan   +1 more
wiley   +1 more source

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