Results 101 to 110 of about 14,028 (253)

Application of IR Fourier microscopy for investigation of kimberlite indicator minerals to search for diamond deposits using heavy-mineral concentrate method

Руды и металлы
Possibilities of the infrared microscopy technique as applied to the express diagnostics of diamond crystals and of grains of most of its satellite minerals, extracted from heavy mineral concentrate (HMC) samples, are considered. An original technique of
Khachatryan G. K., Anashkina N. E.
doaj   +1 more source

COVID-19 Shock and the Time-Varying Volatility Spillovers Among the Energy and Precious Metals Markets: Evidence From A DCC-GARCH-CONNECTEDNESS Approach. [PDF]

Front Public Health, 2022
Tan X, Wang X, Ma S, Wang Z, Zhao Y, Xiang L.   +5 more
europepmc   +1 more source

One‐Dimensional RuIrTe Nanotubes with Amorphous Surface as a Highly Active and Stable Electrocatalyst Toward Oxygen Evolution Reaction in Acidic Media

Advanced Science, EarlyView.
A rational etching‐induced reconstruction strategy is demonstrated to fabricate one‐dimensional RuIrTe ternary nanotubes with a unique amorphous‐crystalline heterostructure. This hierarchical architecture synergistically optimizes mass transport and electronic configurations, delivering record‐breaking performance in proton exchange membrane water ...
Zhi Liang Zhao, Zhe Zhang, Shaoxuan Yang, Jie Zhang, Qi Wang   +4 more
wiley   +1 more source

The influence of diamond-mining industry waste on soil geochemistry and the development of salinization processes

Frontiers in Environmental Science
IntroductionMining in the Arctic induces severe environmental transformations, particularly soil salinization, which threatens the fragile ecosystems of permafrost-affected landscapes.
Tatiana Vasileva, Yana Legostaeva, Olesya Shadrinova, Egor Ivanov   +3 more
doaj   +1 more source

Assessing the hedging potential of gold and other precious metals against uncertainty due to epidemics and pandemics. [PDF]

Qual Quant, 2022
Sikiru AA, Salisu AA.
europepmc   +1 more source

Unleashing the Power of P‐N Heterojunctions: Optimizing Water Electrolysis Efficiency Through a Cathode‐Driven Electrocatalyst Synergy

Advanced Science, EarlyView.
This groundbreaking contribution to water electrolysis demonstrates that MoSe2/PANI electrocatalysts with a P–N heterojunction effectively balance the overall electrolysis reaction as the cathode, enhance anode performance, and achieve high‐efficiency, low‐energy, simultaneous hydrogen and oxygen production, revealing that the P–N heterojunction ...
Kumasser Kusse Kuchayita, Wei‐Nien Su, Chih‐Chia Cheng   +2 more
wiley   +1 more source

The COVID-19 pandemic and speculation in energy, precious metals, and agricultural futures. [PDF]

J Behav Exp Finance, 2021
Sifat I, Ghafoor A, Ah Mand A.
europepmc   +1 more source

Organoid Brain‐Machine‐Interface Devices for Central Nervous System Repair

Advanced Science, EarlyView.
We envision organoid brain‐machine‐interface (Organoid‐BMI) devices as new biohybrid bidirectional communication pathways to connect the human CNS and the external world for personalized CNS repair and regeneration. ABSTRACT Central nervous system (CNS) repair and regeneration suffer from tremendous clinical challenges due to current limitations in ...
Yantao Xing, Yang Yang, Zichen Hong, Chunhui Tian, Huiyu Chu, Susanne Clara Prokop, Hongwei Cai, Mingxia Gu, Jason Tchieu, Ken Mackie, Feng Guo   +10 more
wiley   +1 more source

The uptake characteristics of Prussian-blue nanoparticles for rare metal ions for recycling of precious metals from nuclear and electronic wastes. [PDF]

Sci Rep, 2022
Watanabe S, Inaba Y, Harigai M, Takeshita K, Onoe J.   +4 more
europepmc   +1 more source

Spatially Separated Redox Centers in One‐Dimensional Sp2‐Carbon Covalent Organic Frameworks Enable Synergistic Photocatalytic Palladium Recovery and Bisphenol A Mineralization

Advanced Science, EarlyView.
A one‐dimensional sp2‐carbon covalent organic framework with spatially segregated redox centers integrates a dual photosensitizing system and a cationic interface for synergistic photocatalysis. The material achieves exceptional palladium recovery (1749 mg g−1) and bisphenol A mineralization (0.1710 min−1) without sacrificial agents, demonstrating ...
Yi‐Ru Chen, Jing‐Yi Li, Yao Xiao, Dan Zhong, Lu Zhang, Yu‐Ting Xie, Xiu Wang, Yibao Li, Wei‐Rong Cui, Jian‐Ding Qiu   +9 more
wiley   +1 more source