Results 51 to 60 of about 36,721,275 (294)

Decoding Synergistic Pathways in Bimetallic MOFs for Advanced Oxidation Processes

open access: yesAdvanced Materials, EarlyView.
This review presents a unified framework linking metal pairing and framework design with electronic structure, redox cycling, oxidant activation, reactive‐species generation, and catalytic performance across photocatalytic and oxidant‐based BMOF‐AOPs. The resulting design principles guide the development of hydrolytically stable and efficient BMOFs for
Karim El‐Naggar   +2 more
wiley   +1 more source

Emerging Analytical Techniques for Rare Earth Element Study: Basic Principles and Cutting-Edge Developments

open access: yesAnalytica
Fundamental research, exploration, extraction, and metallurgical studies of rare earth elements (REEs) require the use of analytical techniques. Recently, emerging developments of analytical instrumentation for REEs have taken place, with some of them ...
Heru Agung Saputra   +3 more
doaj   +1 more source

In Situ Ti Isotopic Measurements by Laser Ablation MC-ICP-MS

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2009
We have been developing Laser Ablation Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) technique to measure titanium isotopic composition in situ. A principal aim of this work is to search for isotopic heterogeneities larger than
Hsin-Wei Chen   +3 more
doaj   +1 more source

Laser ablation in situ U-Pb dating and its application to diagenesis-porosity evolution of carbonate reservoirs

open access: yesPetroleum Exploration and Development, 2019
Through the development and calibration of a reference material which is 209.8 Ma old using a newly-developed Laser Ablation (LA) Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) technique, we successfully overcome the difficulty ...
Anjiang SHEN   +6 more
doaj   +1 more source

Lead isotope analysis of Meroitic period glass from Nubia with LA‐MC‐ICP‐MS

open access: yesArchaeometry, 2022
AbstractAnalytical studies of glass found at sites in Nubia (ancient Sudan) have shown the variety of glass present during ancient times. This study examines Meroitic period (c.350 bce–350 ce) glass from Nubia: here categorized as low‐lead and high‐lead.
openaire   +1 more source

Regulating Phase Evolution and Crystallization Dynamics Enables Low Open‐Circuit Voltage Deficit in Wide‐Bandgap Cu2ZnSnS4 Solar Cells

open access: yesAdvanced Materials, EarlyView.
Bilayer composition‐modulated sulfurization (BCMS) regulates Cu redistribution in solution‐processed Cu2ZnSnS4, suppressing Cu2SnS3 and favoring the direct transformation pathway, while transforming the crystallization from surface‐dominated growth to a more synchronized process.
Hang Geng   +10 more
wiley   +1 more source

Zircon LA-ICP-MS U-Pb Age and Geochemical Features of the Songlinkou Pluton, Western Sichuan

open access: yesYankuang ceshi, 2020
BACKGROUND The Songlinkou pluton is located in the eastern margin of the Songpan-Ganzi orogenic belt, which is adjacent to the pegmatite-type lithium deposit of Jiajika. OBJECTIVES To explore the similarities and differences between Songlinkou pluton and
YE Ya-kang, ZHOU Jia-yun, ZHOU Xiong
doaj   +1 more source

Soft and Transient Bioelectronics Enabled by Polymer‐Free Ti3C2Tx MXene Hydrogels

open access: yesAdvanced Materials, EarlyView.
We present Ti3C2Tx MXene hydrogel (MXgel) bioelectronics, a soft, flexible, and fully transient platform for high‐fidelity neural recording and stimulation. MXgel bioelectronics exhibit exceptional electrical conductivities, low electrochemical impedances, and high charge injection capacities.
Raghav Garg   +15 more
wiley   +1 more source

Isotopic study of the Pb-Zn (Cu-Ag) Santa Maria Deposit, Caçapava do Sul Region, Rio Grande do Sul, Brazil

open access: yesBrazilian Journal of Geology, 2021
The Camaquã Mines, in the central-southern region of Rio Grande do Sul State, Brazil, contain the largest deposits of base metals (Camaquã, Cu; Santa Maria, Pb-Zn) in the Camaquã Basin.
David Ramos Pereira   +3 more
doaj   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

open access: yesAdvanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

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