Results 181 to 190 of about 7,135,260 (382)

Emerging Advanced Electronic Packaging Materials for Thermal Management in Power Electronics

open access: yesAdvanced Science, EarlyView.
This review surveys emerging materials for thermal management in advanced electronic packaging, with emphasis on ceramic substrates and thermal interface materials. Multiscale simulations and mechanistic analyses are highlighted, alongside the emerging role of artificial intelligence in predicting thermal properties and guiding design, offering ...
Yongjun Huo   +11 more
wiley   +1 more source

Dual‐Strategy Design of Heterojunction‐Enhanced Piezoelectric Hydrogels for Periodontitis Treatment

open access: yesAdvanced Science, EarlyView.
This study developed a piezoelectric hydrogel integrating heterojunction enhancement and dual‐salt synergy, combining robust electrical performance with mechanical stability and bioactivity to better match the periodontal microenvironment. Under ultrasound activation, the hydrogel markedly promotes macrophage M2 polarization, thereby reducing the ...
Qiangqiang Zhou   +10 more
wiley   +1 more source

The Boot Lake MF imaging radar [PDF]

open access: yes
The Middle-Atmosphere Imaging Radar is located at the Boot Lake field site, 10 miles east of Brighton, Colorado. It operates at 2.66 MHz with a 50-kW peak pulse power in 30 microsecond pulses. Ten independent coaxial-collinear antennas are used; five are
Adams, G. W., Brosnahan, J. W.
core   +1 more source

Conformation‐Modulated Lignin for Durable and High‐Output Cellulosic Triboelectric Materials Toward Self‐Powered Sensing

open access: yesAdvanced Science, EarlyView.
Conformation‐engineered alkali lignin with flexible aliphatic side chains is integrated into cellulose to suppress tribo‐induced fiber fibrillation and interfacial wear. Dynamic chain adaptability enhances frictional energy dissipation and dielectric polarization, enabling durable, high‐output triboelectric sensing with excellent recyclability and ...
Lujie Wang   +11 more
wiley   +1 more source

Clean Cut (adaptive, multimodal surgical infection prevention programme) for low‐resource settings: a prospective quality improvement study

open access: yesBJS (British Journal of Surgery), EarlyView., 2020
Clean Cut is a multimodal, adaptive, checklist‐based infection prevention programme designed to improve compliance with six critical perioperative infection prevention practices. After introducing the programme at five hospitals in Ethiopia, compliance with critical infection prevention standards significantly improved and the relative risk of ...
J. A. Forrester   +16 more
wiley   +1 more source

Polarimetric radar images

open access: yes, 2014
Ce manuscrit concerne une synthèse de mes travaux de recherches menés au sein de l'Onera sur les images polarimétriques radar de télédétection. Un radar polarimétrique permet de mesurer un plus grand nombre de paramètres qu'un radar monocanal en exploitant la nature vectorielle de l'onde électromagnétique.
openaire   +1 more source

Reconstructed Polyamide Nanolayers via Two‐Stage Interfacial Polymerization Engineering for Precise Ion Sieving

open access: yesAdvanced Science, EarlyView.
A reconstructed polyamide nanofiltration membrane is engineered via a two‐stage interfacial polymerization strategy for lithium extraction from complex brines. Incorporated bidentate quaternary ammonium monomers enable synergistic steric and electrostatic effects within sub‐nanometer channels, achieving 60‐fold lithium enrichment and demonstrating ...
Shuzhen Zhao   +9 more
wiley   +1 more source

Radar Image Preprocessing

open access: yes, 1980
Standard image processing techniques are not applicable to radar images because of the coherent nature of the sensor. Therefore there is a need to develop preprocessing techniques for radar images which will then allow these standard methods to be applied. A random field model for radar image data is developed.
Frost, Victor S.   +3 more
openaire   +1 more source

Home - About - Disclaimer - Privacy