Results 51 to 60 of about 2,355,992 (290)
Mining in Alaska - environmental impact and pollution control [PDF]
, 1975 Environmental factors affecting mining are difficult to establish in Alaska due to the absence of large scale hard rock mining activities at the present time.
Johansen, N. I.
core
Advanced Engineering Materials, EarlyView.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
wiley +1 more source
Frontiers in Earth ScienceCemented paste backfill (CPB) is a technology that has a positive impact on both the environment and mining safety. In recent years, it has been widely applied and developed.
Zhuo Shen, Yibo Zhou
doaj +1 more source
La filière brésilienne des pierres gemmes « de couleur »
Cahiers des Amériques Latines, 2014 Despite the widespread dispersion of coloured gemstone exploitation in Brazil, two states remain by far the most important: Minas Gerais and Rio Grande do Sul.
Aurélien Reys
doaj +1 more source
Corporate Social Responsibility and the Mining Sector in Southern Africa: A Focus on Mining in Malawi, South Africa and Zambia [PDF]
, 2008 The research conducted by the Bench Marks Foundation on mining in Southern provides SADC governments, mining companies and local mining community stakeholders with information and guidance on issues to consider in the process of empowerment and ...
core
, 2017 Mining for Bitcoins is a high-risk high-reward activity. Miners, seeking to reduce their variance and earn steadier rewards, collaborate in pooling strategies where they jointly mine for Bitcoins.
A Laszka +8 more
core +1 more source
Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Cahiers des Amériques Latines, 2016 In this article we explore the birth of « self-mobilizing » community associations and the articulation and mobilization process of different stakeholders whose efforts led to the enactment of the Law on Minimum Standards for the Protection of Glacial ...
Lorena Bottaro, Marian Sola Álvarez
doaj +1 more source
Data Mining in Health-Care: Issues and a Research Agenda [PDF]
, 2000 While data mining has become a much-lauded tool in business and related fields, its role in the healthcare arena is still being explored. Currently, most applications of data mining in healthcare can be categorized into two areas: decision support for ...
Adya, Monica
core +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source