Results 121 to 130 of about 27,111 (282)

Annual Banned‐Substance Review 18th Edition—Analytical Approaches in Human Sports Drug Testing 2024/2025

open access: yesDrug Testing and Analysis, EarlyView.
New insights into drug metabolism, distribution, elimination, and detection assays for drugs and methods of sports doping published between 2024 and 2025 are critically reviewed and evaluated in context with the Prohibited List 2025 as established by the World Anti‐Doping Agency.
Mario Thevis, Tiia Kuuranne, Hans Geyer
wiley   +1 more source

Advances in Electrocatalytic Valorization of Glycerol: From Fundamental Understanding to Practical Innovation

open access: yesEcoEnergy, EarlyView.
This review provides a comprehensive overview of recent advances in glycerol electro‐oxidation reaction, covering electrocatalyst design, electrolyte and operating optimization, and mechanistic understanding of reaction pathways. Integrated anodic–cathodic systems and techno‐economic assessments are discussed, followed by key challenges and future ...
Jiamin Wang   +3 more
wiley   +1 more source

ZnO‐Coated Silicon Oxide Nano‐Anode: Synergistic Enhancement of Cycling and Thermal Stability of Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Lithium‐ion battery anodes that maintain good performance and excellent stability under high temperature conditions. Silicon oxide (SiO) has great potential as a high‐capacity anode for lithium‐ion batteries, but its practical use is limited by excessive volume expansion (>200%) and rapid capacity fade, especially at high temperatures.
Keren Shi   +9 more
wiley   +1 more source

Approximate theoretical performance evaluation for a diverging rocket [PDF]

open access: yes, 1960
A simplified combustion model, which is motivated by available performance studies on the diverging rocket reactor, has been used as basis for an engine performance evaluation.
Eckel, E. F.   +3 more
core  

Superionic Conduction Through Lattice Engineering of Fluorites Stabilizing Periodic Oxygen Vacancy Network

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Lattice‐engineered fluorite oxide with periodic oxygen vacancy network achieves superionic conduction, Ce4+–Al3+ fluorite cation ordering enables dielectric‐enhanced superionic conduction, surpassing the limitations of conventional doped electrolytes and high fuel cell performance at low temperature through a flattened energy landscape.
Shahzad Rasool   +18 more
wiley   +1 more source

Experimental study of coupling characteristics between flame dynamics and CO emissions using wavelength modulation spectroscopy

open access: yesApplications in Energy and Combustion Science
The coupled characteristics of flame dynamics and emissions in energy systems are critical for understanding combustion instability mechanisms and implementing effective emission control, necessitating high temporal-resolution optical diagnostic methods ...
Weitian Wang   +7 more
doaj   +1 more source

Cobalt‐Free Single‐Crystal Cathodes for Next‐Generation Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cobalt‐free single‐crystal cathodes enhance lithium‐ion battery stability by mitigating fracture, degradation, and phase transitions. This review highlights Ni‐rich layered, Li‐Mn‐rich, spinel, and olivine frameworks, synthesis strategies enabling morphology and defect control, and structural tuning via doping and coatings, offering pathways toward ...
Srinivasan Alagar   +5 more
wiley   +1 more source

Anion‐Regulated Ionic Liquid–Polymer Electrolytes for High‐Performance and Safe Lithium Metal Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A PVDF‐HFP/poly(ionic liquid) dual‐matrix solid electrolyte plasticized with Pyr13TFSI exhibits enhanced ionic conductivity, thermal stability, and interfacial compatibility. The optimized morphology and Li+ solvation structure facilitate fast ion transport and robust cycling, highlighting its promise for safe, high‐performance lithium metal batteries.
Kangsheng Huang   +9 more
wiley   +1 more source

Regulation of Oxygen Vacancies in High Entropy Oxides With Multi‐Layer Eggshell Architectural Framework for Boosting the Electrochemical Performance of Supercapacitors

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An oxygen vacancy–rich FeZnCuCoNi high‐entropy oxide was constructed using a dual‐defect engineering strategy. This multi‐layer eggshell‐structured material delivers remarkable electrochemical performance, with high specific capacitance, excellent rate capability, and long‐term cycling stability even after 10 000 cycles.
Shunxiang Wang   +5 more
wiley   +1 more source

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