Results 171 to 180 of about 418,049 (343)

Rational Design and Fabrication of MEMS Gas Sensors With Long‐Term Stability: A Comprehensive Review

open access: yesAdvanced Science, EarlyView.
Recent advances in microelectromechanical systems (MEMS) gas sensors are reviewed, emphasizing strategies to enhance long‐term stability, including chemical modification of sensing films and device structural optimization. Key challenges and future opportunities are also highlighted.
Chao Zhang   +6 more
wiley   +1 more source

Multi‐Level Optical Physical Unclonable Function Based on Random Surface Scattering for Hierarchical Cryptographic Protocols

open access: yesAdvanced Science, EarlyView.
This study proposed physical unclonable function based multi‐level key space generation scheme. By exploiting speckle characteristic, a size‐controllable structure is achieved and that is suitable foundation for multiple key extraction. The flexible key space supports various specifications for advanced applications, such as hierarchical authentication
Jeong Jin Kim, Min Seong Kim, Gil Ju Lee
wiley   +1 more source

Efficient information lookup for the Internet of Things [PDF]

open access: green, 2012
Giannis F. Marias   +2 more
openalex   +1 more source

Indoor Organic Photovoltaics with Over 29% Efficiency and Great Stability Enabled by Giant Dimeric Acceptors with Hypsochromic Absorption and High Glass Transition Temperature

open access: yesAdvanced Science, EarlyView.
Through a systematical investigation of structure‐performance relationship from the small‐molecule acceptor to giant molecule acceptors (GDAs) and polymer acceptor, a fluorinated GDA is reported with hypsochromic absorption and high glass transition temperature. The resulting devices demonstrate a remarkable efficiency of 29.1% under indoor conditions,
Bosen Zou   +19 more
wiley   +1 more source

Supramolecular Self‐Assembly of Organic Cu(I) Iodides as Green and Recyclable Paper‐Based Customizable Large‐Area Flexible Film for Plant Grow Lighting and Plant Root X‐Ray Imaging

open access: yesAdvanced Science, EarlyView.
Organic Cu(I) iodides with efficient broadband photoluminescence and radioluminescence are reported. Based on “ancient cloth dyeing process”, a paper‐based flexible film is prepared in situ on cellulose, and demonstrates its application in plant growth lighting and plant root X‐ray imaging.
Shengji Yuan   +7 more
wiley   +1 more source

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