Results 91 to 100 of about 1,767,928 (381)

Undermining the myths about small-scale mining [PDF]

, 2015
Item does not contain fulltextAlong with many other countries, in recent decades the Philippines –have witnessed a dramatic expansion of small-scale mining (SSM), mostly (but not exclusively)in the form of small-scale gold mining.
Besmanos, Beverly, Verbrugge, Boris
core   +3 more sources

Limited biomass recovery from gold mining in Amazonian forests

Journal of Applied Ecology, 2020
1. Gold mining has rapidly increased across the Amazon Basin in recent years, es pecially in the Guiana shield, where it is responsible for >90% of total deforesta tion.
M. Kalamandeen, E. Gloor, I. Johnson, Shenelle Agard, Martin Katow, Ashmore Vanbrooke, D. Ashley, S. Batterman, G. Ziv, Kaslyn Holder‐Collins, O. Phillips, Eduardo S Brondízio, I. Vieira, D. Galbraith   +13 more
semanticscholar   +1 more source

From Natural Discovery to AI‐Guided Design: A Curated Collection of Compact Enhancers for Crop Engineering

Advanced Science, EarlyView.
ABSTRACT Precise transgene‐free gene upregulation remains a challenge in crop biotechnology, as conventional enhancers often exceed CRISPR‐mediated knock‐in size constraints and face regulatory hurdles. Here we establish a foundational cross‐species resource of compact transcriptional enhancers developed via STEM‐seq, a high‐throughput screening ...
Qi Yao, Jin Gao, Keling Wang, Yufeng Liu, Peijin Han, Hong Pan, Xiaofeng Yang, Qianlan Yin, Dating Zhong, Lu Ye, Qi Deng, Lingling Gao, Xiaoyu Tu, Dequan Wang, Yuming Lu   +14 more
wiley   +1 more source

Automatic Process Mineralogy Based on Gold Ore Core

Kuangchan zonghe liyong
This is an article in the field of process mineralogy. A quartz vein type gold deposit in Shandong has a gold grade of 2.51 g/t. In order to further develop the deposit and study the beneficiation process, the process mineralogy of the mineral was ...
Mingming CAI, Guangsheng LI, Xingfu ZHU, Chao XU, Qiwei SUN, Nan WANG   +5 more
doaj   +1 more source

Gold deposits of the Czech Republic from a mineral policy perspective [PDF]

, 2015
Gold production in the region that currently makes up the Czech Republic has a thousand-year-old tradition with peaks around the third century BC, 14th century AD and 20th century AD.
Janíková, Pavlína, Jirásek, Jakub, Kavina, Pavel, Klika, Radúz, Sivek, Martin, Starý, Jaromír   +5 more
core   +1 more source

Aboveground carbon emissions from gold mining in the Peruvian Amazon

Environmental Research Letters, 2020
In the Peruvian Amazon, high biodiversity tropical forest is underlain by gold-enriched subsurface alluvium deposited from the Andes, which has generated a clash between short-term earnings for miners and long-term environmental damage.
O. Csillik, G. Asner
semanticscholar   +1 more source

Multifunctional Activities of Gold Nanoparticles Biosynthesized Using Bacteria Isolated from Mining Areas [PDF]

, 2021
Chih‐Yu Chen, Yung-Chu Chang, Teh‐Hua Tsai, Man-Hai Liu, Ying‐Chien Chung   +4 more
openalex   +1 more source

Durable Thin‐Film Porous Transport Electrodes for High Current Density PEM Water Electrolysis

Advanced Science, EarlyView.
Water electrolysis using porous transport electrodes with sputter‐deposited, ionomer‐free thin films of rutile IrO2 catalyst suppresses Ir dissolution by >10x over other forms of IrOx. The rutile IrO2 catalyst prepared by this readily scalable electrode synthesis method provides stable cell operation at 3 A cm−2 while using low Ir loading (0.4 mg Ir cm−
James L. Young, Diana E. Beltrán, Sarah J. Blair, Ricardo P. M. Duarte, Makenzie R. Parimuha, Haoran Yu, Lonneke van Eijk, Kimberly S. Reeves, Tomas Grejtak, Jorge Martinez, Bennett A. Chao, Jacob Wrubel, Melissa E. Kreider, Elisa M. Miller, Julia D. Lenef, Karen N. Heinselman, Svitlana Pylypenko, David A. Cullen, Guido Bender   +18 more
wiley   +1 more source

Development of Dimethylsulfonium Probes for Broad Profiling of Methyllysine Reader Proteins

Advanced Science, EarlyView.
Development of oligoglycine‐based dimethylsulfonium probes for unbiased crosslinking to methyllysine readers. The general probe facilitates profiling of site‐specific methyllysine readers, evaluation of selectivity and activity of reader inhibitors, and global profiling of methyllysine readers.
Jinyu Yang, Yihang Xiao, Yingxiao Gao, Mingxuan Wu   +3 more
wiley   +1 more source

Prediction of Temperature Field and Control Method for Heat Damage in Deep Shaft

Geofluids
During the excavation of the shaft, the inlet air temperature undergoes seasonal variations and is influenced by geothermal effects and air compression heat. Merely augmenting the inlet air volume fails to mitigate the extreme temperatures encountered at
Chunlong Wang, Qibin Lin, Xiaodong Lang, Ye Xu, Xi Wang, Yuyun Fan   +5 more
doaj   +1 more source