Results 151 to 160 of about 1,448,495 (301)

Achieving High‐Instantaneous Pulse Power in Contact‐Separation TENG via Series Capacitive Voltage Control Architecture

Advanced Science, EarlyView.
Conventional contact‐separation triboelectric nanogenerators generate high voltage but deliver limited power due to premature charge dissipation. Here, a capacitive charge reservoir architecture decouples charge accumulation from discharge triggering, enabling sequential voltage amplification via floating‐layer capacitive coupling.
Ajay Haridas CP, Prosenjit Das, Kinsuk Naskar, Titash Mondal   +3 more
wiley   +1 more source

Adaptive intelligent resource optimization in wireless sensor networks using reinforcement learning and compressive sensing

Scientific Reports
In response to the energy and memory limitations of WSNs, this research work introduces a new approach: EMPIRE-CS (Energy and Memory-optimized Performance with Iterative Reinforcement and Compressive Sensing).
S. Balamurali, SatheeshKumar Palanisamy, N. Sathishkumar, K. M. Baalamurugan, Vivek Venkatesan   +4 more
doaj   +1 more source

Electrically Tunable Graphene‐Metal Hybrid Metasurfaces for High‐Efficiency, Broadband Mid‐Infrared Transmission Modulation

Advanced Science, EarlyView.
A graphene‐metal hybrid transmissive metasurface enables electrically tunable mid‐infrared transmission modulation through ionic gel top gating. By combining graphene with a metallic slit metasurface, high modulation efficiency and broadband operation are achieved simultaneously, demonstrating efficient electrical control of mid‐infrared transmission ...
Heonhak Ha, Jinseok Kong, Junhyung Kim, Jiwon Kang, Min Seok Jang   +4 more
wiley   +1 more source

Influence of Ru Content on Defect Formation and Electrocatalytic Activity of Au‐Pd‐Pt‐Ru Compositionally Complex Solid Solution Thin Films for the Hydrogen Evolution Reaction

Advanced Science, EarlyView.
Transmission electron microscopy reveals that the formation of planar defects in Au–Pd–Pt–Ru CCSS thin films depends on Ru content, which in turn influences hydrogen evolution reaction electrocatalytic activity. As the Ru content increases, the density of nanotwins initially rises; with further Ru addition, stacking faults form.
Miran Joo, Huixin Xiu, Sabrina Baha, Ridha Zerdoumi, Ningyan Cheng, Christoph Somsen, Yujiao Li, Aleksander Kostka, Wolfgang Schuhmann, Alfred Ludwig, Christina Scheu   +10 more
wiley   +1 more source

A CD14‐Targeting In Situ Hydrogel Directs Macrophage Reprogramming to Minimize Scar Formation

Advanced Science, EarlyView.
A CD14‐targeting in situ hydrogel formed from a microbial polysaccharide rapidly remodels the immune microenvironment by reprogramming macrophage polarization, suppressing excessive inflammation, and coordinating tissue regeneration. This multifunctional hydrogel promotes scar‐reduced wound repair through enhanced angiogenesis, collagen remodeling, and
Rui Fang, Simeng Chen, Qiaozhen Liu, Wenwen Ni, Xi Xu, Jianfa Zhang   +5 more
wiley   +1 more source

Mechanophore‐Based Multichannel Colorimetric Force Sensors: Ultrasound‐Driven Stress and Strain Quantification

Advanced Science, EarlyView.
ABSTRACT Mechanophores with mechanochromic properties have attracted significant attention as force‐responsive materials for structural sensing. However, their applications remain mainly limited to qualitative force visualization, as direct and quantitative extraction of mechanical parameters such as stress and strain from mechanochromic responses has ...
Seungo Baek, Jeong Hoon Rhee, Skylar K. Osler, Minsoo P. Kim, Shyuan Cheng, Leonardo P. Chamorro, Hyunhyub Ko, Maxwell J. Robb, Gun Kim   +8 more
wiley   +1 more source

Polydopamine‐Wool Textiles for Sustainable Interfacial Solar Vapor Generation

Advanced Science, EarlyView.
A natural wool textile engineered for high solar absorbance and a fast‐wicking structure serves as a highly efficient, single‐layer system for interfacial solar vapor generation (ISVG). This integrated evaporator seamlessly couples rapid water transport with continuous evaporation. Ultimately, this sustainable photothermal design offers a scalable, eco‐
Kyuin Park, Jintong Gao, Hansadi Jayamaha, Yipu Wang, Mia Bressler, Lenan Zhang, Larissa M. Shepherd   +6 more
wiley   +1 more source

Visual image perception preservation through a compression-encryption framework. [PDF]

Sci Rep
Madkour ME, Soliman SE, Dessouky MI, El-Samie FEA, Elsafrawey AS, Hammad ME.   +5 more
europepmc   +1 more source

High‐Current‐Density Acidic CO2 Electroreduction to Formic Acid Enabled by Multiscale Microenvironment Regulation Over Defect‐Rich Sn/SnOx

Advanced Science, EarlyView.
Acidic CO2 electroreduction to formic acid is enabled by integrating mixed Sn/SnOx nanoclusters, K+‐regulated interfacial solvation, and Janus wettability. Coordinated control of active sites, interfacial water, and gas‐liquid transport suppresses hydrogen evolution and delivers approximately 85% HCOOH Faradaic efficiency at 400 mA cm−2.
Qiaoqi Guo, Bowen Jiang, Le Huang, Kunyu Jiang, Rongrong Tang, Qinong Zhu, Huajun Feng, Mengyang Fan, Yijing Xia   +8 more
wiley   +1 more source

Hydrophobic association and ionic coordination synergistically enhance a multifunctional hydrogel for high-performance wearable strain sensing. [PDF]

Commun Chem
Fu J, Jiang C, Xiang W, Chang G, Li R.
europepmc   +1 more source