Results 141 to 150 of about 262,991 (247)

Hypergraph burning, matchings, and zero forcing [PDF]

open access: yesarXiv
Lazy burning is a recently introduced variation of burning where only one set of vertices is chosen to burn in the first round. In hypergraphs, lazy burning spreads when all but one vertex in a hyperedge is burned. The lazy burning number is the minimum number of initially burned vertices that eventually burns all vertices.
arxiv  

Fast‐Charging Solid‐State Li Batteries: Materials, Strategies, and Prospects

open access: yesAdvanced Materials, EarlyView.
This review addresses challenges and recent advances in fast‐charging solid‐state batteries, focusing on solid electrolyte and electrode materials, as well as interfacial chemistries. The role of multiscale modeling and simulation in understanding Li+ transport and interfacial phenomena is emphasized, providing insights into materials, strategies, and ...
Jing Yu   +7 more
wiley   +1 more source

A retrospective analysis of electric burn patients admitted in King Fahad Central Hospital, Jizan, Saudi Arabia

open access: yesBurns Open, 2019
Background: Electrical burns incidence is increasing due to increased industrialization and increased use of electricity and electric domestic appliances.
Yahya Najmi, Pramod Kumar
doaj  

Optimised stellarators with a positive radial electric field [PDF]

open access: yesarXiv
We draw attention to an interesting possibility in the design and operation of stellarator fusion reactors, which has hitherto been considered unrealistic under burning-plasma conditions. Thanks to recent advances in stellarator optimisation theory, it appears possible to create a positive (outward-pointing) radial electric field in the plasma core by ...
arxiv  

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

Halide Perovskite Photocatalysts for Clean Fuel Production and Organic Synthesis: Opportunities and Challenges

open access: yesAdvanced Materials, EarlyView.
This review provides the state‐of‐the‐art overview of halide perovskite‐based photocatalysts for hydrogen production from water and halogen acid solutions, CO2 reduction into value‐added chemicals, and organic chemical transformations. Different types of halide perovskite photocatalysts and their relative efficiencies for hydrogen generation and CO2 ...
Siddharth Singh   +8 more
wiley   +1 more source

Engineering Flow‐Through Hollow Fiber Gas‐Diffusion Electrodes for Unlocking High‐Rate Gas‐Phase Electrochemical Conversion

open access: yesAdvanced Materials, EarlyView.
Advancing gas‐phase electrolysis toward industrial‐scale applications requires not only the development of advanced electrocatalysts but also the design of the electrodes to optimize gas‐electrode‐electrolyte interfaces and facilitate efficient mass transport, thereby reinforcing gas win the electrons to promote reaction kinetics and suppress side ...
Guoliang Chen   +8 more
wiley   +1 more source

Full Wafer Scale Manufacturing of Directly Printed TiO2 Metalenses at Visible Wavelengths with Outstanding Focusing Efficiencies

open access: yesAdvanced Materials, EarlyView.
The highest experimentally determined focusing efficiency is reported here by using the direct imprinting of all‐inorganic TiO2 metalens arrays. Absolute efficiency greater than 80% and relative efficiency greater than 90% are achieved by optimization of all fabrication parameters controllable in the additive manufacturing process.
Dae Eon Jung   +7 more
wiley   +1 more source

Solid Polymer Electrolyte with Compatible Cathode‐Electrolyte Interfacial Design Enabling Lithium Metal Batteries Operation at 4.8 V with Long Cycle Life

open access: yesAdvanced Materials, EarlyView.
This study introduce a novel approach to enhancing cathode‐SPE compatibility by utilizing the same poly(ionic liquid) (PolyIL)‐based material in both the SPE and the cathode binder. A modified biomass‐based PolyIL substrate, enriched with highly negatively charged C═O and ─OH groups, is incorporated into the SPE to improve Li+ migration and strengthen ...
Jiajia Li   +8 more
wiley   +1 more source

Burning game [PDF]

open access: yesarXiv
Motivated by the burning and cooling processes, the burning game is introduced. The game is played on a graph $G$ by the two players (Burner and Staller) that take turns selecting vertices of $G$ to burn; as in the burning process, burning vertices spread fire to unburned neighbors.
arxiv  

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