Results 211 to 220 of about 1,040,720 (337)

Leaching of the Mixture of Metallic Gold and Silver

Journal of the Korean Institute of Resources Recycling, 2017
Weidong Xing, Manseung Lee
openaire   +2 more sources

Goby gummies: A customizable and edible assay to quantify predation in aquatic ecosystems

Methods in Ecology and Evolution, EarlyView.
Abstract Predation is a critical ecosystem process that shapes the structure and functioning of biological communities. However, due to its intermittent nature, fast pace and general unpredictability, predation is difficult to observe and quantify. Therefore, we commonly rely on indirect metrics or proxies of predation, which reflect the outcome of ...
Christopher R. Hemingson, Douglas B. Rasher, Simon J. Brandl   +2 more
wiley   +1 more source

Paste-Level Evaluation of a Hybrid Silicomanganese Slag-Steel Slag-OPC-Activated Binder: Mechanical Performance, Simplified Carbon Footprint and Mn Leaching Reduction. [PDF]

Materials (Basel)
Duan J, Zhang X, Zhao J, Hua S, Li H.
europepmc   +1 more source

Biogenic Thiosulfate Production for Gold Leaching

At the present time, the average grade of gold in deposits being mined is decreasing, and the prevalence of feed components that negatively impact the cyanidation process, is increasing. Thiosulfate is an alternative lixiviant that is often suggested as a cyanide replacement.
openaire   +1 more source

Research Ethics in Conflict Zones: Reflections on ‘Do no Harm’ Ethics for the Research Network

Asia Pacific Viewpoint, EarlyView.
ABSTRACT What does it mean to ‘do no harm’ in academic research? ‘Do no harm’ ethics emphasizes the responsibility of researchers to mitigate the emotional, physical, and political harms that may arise through participation in research. These concerns are heightened in conflict zones, where access constraints and intersecting vulnerabilities shape the ...
K. B. Roberts
wiley   +1 more source

Insight into acid generation and the release risk of Cd, Cu and Mo from a high-latitude polymetallic mine in China. [PDF]

Sci Rep
Liu G, Ma Z, Li D, Pan R, Li X, Ke Z, Li R, Zhao Y, Liu H, Dong L.   +9 more
europepmc   +1 more source

The Damhus Hoard: New Insights Into Some of the Earliest Viking Silver Coinage

Archaeometry, EarlyView.
ABSTRACT In 2018, a hoard totalling 266 silver Viking Age coins was discovered near Damhus, south of Ribe (Denmark). The coins belong to the early ninth‐century ‘KG 4’ series, with the vast majority, 262 coins, identified as having Face/Forward Looking Deer on the obverse/reverse.
Thomas Birch, Helle Horsnæs, Rasmus Andreasen, Claus Feveile, Stephen Merkel, Jane Kershaw, Guillaume Sarah, Rory Naismith, Jens Christian Moesgaard   +8 more
wiley   +1 more source

Gold nanoparticle-decorated reduced graphene oxide as a highly effective catalyst for the selective α,β-dehydrogenation of <i>N</i>-alkyl-4-piperidones. [PDF]

Beilstein J Nanotechnol
Kenyim BF, Tzalis M, Kaul M, Oestreich R, Limon A, Pecheu Nkepdep C, Janiak C.   +6 more
europepmc   +1 more source

Novel approaches for drug development against chronic primary pain: A systematic review

British Journal of Pharmacology, EarlyView.
Abstract Chronic primary pain (CPP) persisting for more than 3 months, associated with significant emotional distress without any known underlying cause, is an unmet medical need. Traditional or adjuvant analgesics do not provide satisfactory pain relief for a great proportion of these patients.
Valéria Tékus, Éva Borbély, Andreas Goebel, Ralf Baron, Zsófia Hajna, Zsuzsanna Helyes   +5 more
wiley   +1 more source

Using glycine to recover valuable metals from lithium-ion batteries. [PDF]

Sci Rep
Tahan E, Koohestani H.
europepmc   +1 more source