Results 41 to 50 of about 390,267 (306)
Environmental pollution produced by gold artisanal mining in the Mapiri river basin, Apolobamba, Bolivia [PDF]
, 2012 Mining activity is very important in Bolivia since colonial times. Today it has been reactivated, especially gold mining, due to rise in metal prices. Artisanal and small-scale mining activities are abundant in the protected area of Apolobamba, near the ...
Alfonso Abella, María Pura +5 more
core
Assessing the freshwater quality of a large-scale mining watershed : the need for integrated approaches [PDF]
, 2019 Water quality assessments provide essential information for protecting aquatic habitats and stakeholders downstream of mining sites. Moreover, mining companies must comply with environmental quality standards and include public participation in water ...
Arroyo, Nilton Deza +10 more
core +1 more source
Solvent Co‐Intercalation Enabled Ca Storage in MoS2 for Ca‐Ion Batteries
Advanced Functional Materials, EarlyView.Regulating electrolyte solvation levels enables otherwise non‐intercalatable Ca2+ ions to reversibly co‐intercalate into molybdenum disulfide (MoS2) as ether‐solvated species. The intercalation reversibility is strongly governed by solvent chain length, as demonstrated using diethylene glycol dimethyl ether (G2) and tetraethylene glycol dimethyl ether (
Yudong Luo +10 more
wiley +1 more source
Beyond the artisanal mining site: migration, housing capital accumulation and indirect urbanization in East Africa [PDF]
, 2017 During the past 30 years, Tanzania has experienced successive precious mineral rushes led by artisanal miners. Their settlement, livelihood and housing strategies have evolved amidst high mobility in pursuit of mineral wealth.
Bryceson, Deborah Faye +1 more
core +1 more source
Advanced Healthcare Materials, EarlyView.Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou +4 more
wiley +1 more source
Advanced Materials, EarlyView.Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam +6 more
wiley +1 more source
Current Status and Prospects of Mineral Sorting Technology Research at Home and Abroad [PDF]
E3S Web of ConferencesWith the continuous exploitation of mining resources, the grade of selected ores gradually decreases, and the cost of crushing, grinding, and beneficiation gradually increases.
Qin Guanglin +5 more
doaj +1 more source
Advances in Civil Engineering, 2021 In deep hard-rock mines, the failure of subsurface structures (e.g., tunnels, stopes, and shafts) has been a significant problem affecting mining safety due to the high-stress environment.
Huanxin Liu +4 more
doaj +1 more source
The case for gold panning in Scotland [PDF]
, 2014 In March 2014, the Hunterian at the University of Glasgow will hold an exhibition of gold in Scotland. Amongst the treasures on display will be the King's Gold Cup from the Leith races of 1751, Queen Victoria's gold collar of the Order of the Thistle ...
Clark, Neil
core
Advanced Materials, EarlyView.We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena +6 more
wiley +1 more source