Results 61 to 70 of about 870,871 (311)

Constructing Ionic Fast Diffusion Channels on LiNi0.5Mn1.5O4 for Lithium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A dual‐modification strategy is developed for LNMO cathode, where bulk Ti doping stabilizes the oxygen framework and simultaneously drives the in situ formation of LaTi2O6 nano‐islands as ion diffusion channels on (111) surfaces, enabling high‐rate capacity (∼100 mAh g−1 at 30 C) and excellent cycling retention (87.8% after 1000 cycles).
Xinyi Zhang   +10 more
wiley   +1 more source

Toward Stable Multivalent Metal Batteries: Understanding the Interfacial Chemistry for Magnesium and Calcium Metal Anodes

open access: yesAdvanced Functional Materials, EarlyView.
Interphase chemistry governs the stability of multivalent metal batteries. We summarize state‐of‐the‐art developments in calcium and magnesium metal batteries by focusing on the correlation among electrolytes, interphase layers, and the electrochemical performance of corresponding metal anodes.
Huijun Lin   +4 more
wiley   +1 more source

Risk Management in Derivatives Markets: Integrating Advanced Hedging Strategies with Empirical Analysis [PDF]

open access: yesSHS Web of Conferences
This study provides a comprehensive analysis of hedging strategies in the Chinese 50ETF options market, emphasizing dynamic hedging, Value at Risk (VaR), and machine learning-based approaches.
Liu Fengshuo
doaj   +1 more source

Time-Varying Comovements in Developed and Emerging European Stock Markets: Evidence from Intraday Data [PDF]

open access: yes, 2007
We study comovements between three developed (France, Germany, the United Kingdom) and three emerging (the Czech Republic, Hungary and Poland) European stock markets.
Kocenda, Evûen, Égert, Balázs
core  

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

open access: yesAdvanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim   +9 more
wiley   +1 more source

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

open access: yesAdvanced Healthcare Materials, EarlyView.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese   +10 more
wiley   +1 more source

Stock Market Linkages in Emerging Asia-Pacific Markets

open access: yesSAGE Open, 2013
This study examines the stock market integration among major stock markets of emerging Asia-Pacific economies, viz. India, Malaysia, Hong Kong, Singapore, South Korea, Taiwan, Japan, China, and Indonesia.
Srinivasan Palamalai   +2 more
doaj   +1 more source

Dynamic spillovers between climate risk, energy transition, and sustainable finance: implications for financial markets [PDF]

open access: yesInternational Journal of Climate Change Strategies and Management
PurposeThe purpose of this paper is to analyze the dynamic interconnections and spillover effects among climate risk, carbon emissions, renewable and nonrenewable energy markets and sustainable finance instruments over time and across different market ...
Dhoha Mellouli
doaj   +1 more source

Optimal Market Design [PDF]

open access: yes
This paper introduces three methodological advances to study the optimal design of static and dynamic markets. First, we apply a mechanism design approach to characterize all incentive-compatible market equilibria. Second, we conduct a normative analysis,
Boone, J., Goeree, J.K.
core   +1 more source

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro   +8 more
wiley   +1 more source

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