Results 51 to 60 of about 346,865 (252)

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou   +8 more
wiley   +1 more source

Selection of EAP-authentication methods in WLANs [PDF]

open access: yes, 2007
IEEE 802.1X is a key part of IEEE802.11i. By employing Extensible Authentication Protocol (EAP) it supports a variety of upper layer authentication methods each with different benefits and drawbacks.
Ali, KM, Owens, TJ
core  

Green consumer markets in the fight against climate change [PDF]

open access: yes, 2013
Climate change has become one of the greatest threats to environmental security, as attested by the growing frequency of severe flooding and storms, extreme temperatures and droughts.
Barrett S.   +11 more
core   +1 more source

Synthetic Nanobiology Actuated Lipometabolic Cell Factory for Autologous Tumor Immunotherapy

open access: yesAdvanced Functional Materials, EarlyView.
FA plays a crucial role in the interaction between tumor cells and the tumor microenvironment, especially for the immune response. A biocatalytic immunoenhancement strategy is developed to boost antitumor immunity by FA metabolic orientation to ceramide. Through the design of this delicate catalytic immunoenhancement strategy, the synthetic nanobiology
Shoujie Zhao   +8 more
wiley   +1 more source

NATO and the Changing Space Security Environment: Strategic Challenges from China and Russia

open access: yesJournal of Liberty and International Affairs
Space has become a strategically critical domain for both state and non-state actors, including NATO and the European Union, due to its impact on sectors such as communication, navigation, intelligence, agriculture, transport, science, and banking. NATO’
Seray Baykal, Ozgun Erler Bayir
doaj   +3 more sources

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

open access: yesAdvanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng   +8 more
wiley   +1 more source

Risk analysis associated with secondary water pollution in selected agglomerations of the Silesian Voivodship [PDF]

open access: yesE3S Web of Conferences, 2019
Water quality is the most important parameter related to water intended for human consumption. The main task of water supply companies is to keep water quality at the possible highest level.
Zimoch Izabela, Bartkiewicz Ewelina
doaj   +1 more source

Transparent UV‐Curable Self‐Sanitizing Coatings Applicable to Diverse Surfaces and High‐Touch Screens to Mitigate Deadly Pathogen Transmission

open access: yesAdvanced Functional Materials, EarlyView.
Development of a transparent, self‐sanitizing antimicrobial coating technology applicable to a wide range of materials and surfaces‐including touchscreens, transparent substrates, and metal, plastic, and glass‐regardless of pathogen type. The spray‐coated, UV‐cross‐linked imidazole‐based quaternary ammonium chloride materials provide broad‐spectrum ...
Surjith Kumaran   +6 more
wiley   +1 more source

Production of Iranian Architectural Assets for Representation in Museums: Theme of Museum-Based Digital Twin

open access: yesBody, Space & Technology Journal, 2021
Representation of architectural heritage artefacts with minimum risks to their authenticity has been advised by heritage guidelines; their transport for representation maximises the risk of destruction and questions the authenticity.
Hossein Parsinejad   +2 more
doaj   +2 more sources

Breathable Graphene Oxide‐Polymer Composite Membranes With Two‐Step Barrier Mechanism Against Nerve Agents

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim   +6 more
wiley   +1 more source

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