Results 111 to 120 of about 145,458 (298)

“Small in size, but big in impact”: Socio-environmental reforms for sustainable artisanal and small-scale mining

, 2019
Artisanal and small-scale mining (ASM) – small sized, largely unrecognized, rudimentary, and an informal form of mining – occurs in more than 70 countries around the world and is mainly hailed for its socioeconomic benefits and reviled for its ...
Mensah, Albert Kobina, Albert Kobina Mensah, Bansah, Kenneth Joseph, Kenneth Joseph Bansah, Owusu, Obed, Obed Owusu   +5 more
core   +1 more source

Retina‐Inspired Bi‐Based Terahertz Photonic Neuromorphic Devices

Advanced Science, EarlyView.
Combined with effective band alignment and substrate engineering, bismuth materials are introduced to form terahertz photonic bio‐inspired devices with picosecond short‐term plasticity to enable multi‐scene visual perception. Thus obtained hardware through the terahertz optical neural network (THz‐ONN) demonstrates high recognition accuracy, providing ...
Pujing Zhang, Donggang Xie, Longyu Shi, Mengyuan Wang, Huiwen Shi, Yu Wu, Menglei Li, Guangwei She, Peijie Wang, Wensheng Shi, Cunlin Zhang, Kuijuan Jin, Guozhen Yang, Qingli Zhou, Chen Ge   +14 more
wiley   +1 more source

A Comprehensive Action Plan Towards Sustainability in Small-Scale Gold Mining in Northeastern Antioquia, Colombia

Mining
This research aims to define an operational plan for the sustainability of small-scale artisanal gold mining (ASGM) in Northeast Antioquia, Colombia. A qualitative approach with a descriptive scope was used, for which a documentary or bibliographical ...
Luis E. Martinez Mendoza, Oscar J. Restrepo Baena, Juan M. Menéndez-Aguado   +2 more
doaj   +1 more source

Health Studies in the Context of Artisanal and Small-Scale Mining: A Scoping Review. [PDF]

Int J Environ Res Public Health, 2021
Cossa H, Scheidegger R, Leuenberger A, Ammann P, Munguambe K, Utzinger J, Macete E, Winkler MS.   +7 more
europepmc   +1 more source

Construction of the large-scale mining area decision-making support and the synthesis management platform

, 2006
Because of lacking modern information management and long-term planning, many serious problems, including environment, ecology, production and so forth, are found in Chinese large-scale, mid-scale and small-scale mining areas. GIS (Geographic Information
Shudong Wang, Japper, Wang3, Guli2, Shudong, Xiaohua, Wang1, Guli Japper, Xiaohua Wang   +8 more
core   +1 more source

Phase Fraction Modulation Enhances Li+/Na+ Diffusion Disparity in Spent LiFePO4 Cathodes for Efficient Lithium Extraction from Brine

Advanced Science, EarlyView.
A direct cascaded utilization strategy for spent LiFePO4 batteries efficiently extracts lithium from brine, embodying the “urban mining” concept. Phase fraction modulation revealed its significant impact on local bond lengths of crystal structure and the Li/Na diffusion energy barrier, identifying the best material (Li0.19FePO4) for lithium extraction.
Ruiqi Yin, Qihan Huang, Jiayu Hao, Guosheng Li, Guoxing Ren, Dongfu Liu, Zhongwei Zhao, Wenhua Xu   +7 more
wiley   +1 more source

Small-scale mining in Zambia

, 2012
The literature on the mineral deposits and small-scale mining activities in Zambia has been reviewed. The present state of the industry has been described with particular reference to the supportive services given by various institutions.
Mwale, M. M. B
core  

Decoupling Intrinsic Molecular Efficacy From Platform Effects: An Interpretable Machine Learning Framework for Unbiased Perovskite Passivator Discovery

Advanced Science, EarlyView.
This study establishes an interpretable machine learning framework that disentangles the intrinsic molecular efficacy of passivators from experimental platform effects—enabling unbiased, high‐throughput discovery of effective perovskite surface modifiers.
Jing Zhang, Ziyuan Li, Shan Gao, Zhen Zhu, Jing Wang, Xiangmei Duan   +5 more
wiley   +1 more source

Policy and implementation of gender equality in Indonesian mining companies as an approach to achieve the goals of Indonesian SDGS

Cogent Social Sciences
Mining is commonly associated with a male-dominated environment. This stigma has hindered women from working in this industry, despite the constitutional right for both men and women to labor in all major fields allowed by law, public order, and morals ...
Sudaryat Sudaryat, Deviana Yuanitasari, Sonny Dewi Judiasih   +2 more
doaj   +1 more source

'We have so many challenges': Small-scale mining, Covid-19 and constant interruptions in West Africa. [PDF]

Anthropol Today, 2021
Pijpers RJ, Luning S.
europepmc   +1 more source