Results 121 to 130 of about 367,886 (378)

Scavenging Ports’ Optimal Design of a Two-Stroke Small Aeroengine Based on the Benson/Bradham Model

open access: yesEnergies, 2018
The two-stroke engine is a common power source for small and medium-sized unmanned aerial vehicles (UAV), which has wide civil and military applications.
Yuan Qiao   +4 more
doaj   +1 more source

A Novel Brain Penetrable Nanocarrier Delivers Brain‐Derived Neurotrophic Factor to Treat Alzheimer's Disease

open access: yesAdvanced Healthcare Materials, EarlyView.
A novel blood‐brain barrier‐penetrating terpolymer nanoparticle to deliver brain‐derived neurotrophic factor (BDNF) for the treatment of Alzheimer's disease (AD) is designed. The BDNF‐TPN significantly enhances BDNF accumulation in the brain following intravenous injection, reduces apoptosis and neuroinflammation, thus promoting neuronal survival and ...
Lily Yi Li   +8 more
wiley   +1 more source

Adapted Speed Control of Two-Stroke Engine with Propeller for Small UAVs Based on Scavenging Measurement and Modeling

open access: yesAerospace
The speed of the engine–propeller directly determines the power output for Unmanned Aerial Vehicles (UAV) with internal combustion engines. However, variable air pressure can impact the engine’s air exchange and combustion processes, causing minor ...
Yifang Feng   +3 more
doaj   +1 more source

Miniaturized Wireless tDCS With Concentric Electrodes for Targeted Cortical Stimulation in Freely Moving Mice

open access: yesAdvanced Healthcare Materials, EarlyView.
This study introduces a wireless and miniaturized concentric‐electrode tDCS (CE‐tDCS) system tailored for freely moving mice. The device enables focal and multi‐site cortical stimulation via a lightweight, Bluetooth‐controlled platform. By integrating local neuromodulation with real‐time behavioral analysis, the system provides a robust tool for ...
Minseok Kim   +5 more
wiley   +1 more source

Practical Guide to the Design of Granular Hydrogels for Customizing Complex Cellular Microenvironments

open access: yesAdvanced Healthcare Materials, EarlyView.
Granular hydrogels are emerging microporous platforms for cell culture and delivery, showing great potential for replicating the complex, heterogeneous environments found in natural tissues. This review outlines the design principles of granular hydrogels, highlighting critical factors that determine the final physicochemical properties of the entire ...
Shuhan Feng, Kaiyang Chen, Shiqi Wang
wiley   +1 more source

Efficiency of harmonic quantum Otto engines at maximal power

open access: yes, 2018
Recent experimental breakthroughs produced the first nano heat engines that have the potential to harness quantum resources. An instrumental question is how their performance measures up against the efficiency of classical engines. For single ion engines
Deffner, Sebastian
core   +1 more source

Roll‐To‐Roll Production of Smart Dressings for Wound Monitoring

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a roll‐to‐roll manufactured smart wound dressing capable of visually monitoring key wound biomarkers, including pH, humidity, and temperature. By integrating colorimetric sensors into flexible dressing substrates, the device offers real‐time, equipment‐free insights for infection detection and wound management, representing a ...
Ziheng Wang   +14 more
wiley   +1 more source

Advanced Nanoparticle Therapeutics for Targeting Neutrophils in Inflammatory Diseases

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent advances in nanoparticle‐based strategies to modulate neutrophil activity in inflammatory diseases. By targeting inflammatory neutrophils, NET formation, and neutrophil apoptosis or recruitment, these approaches aim to improve therapeutic precision.
Min Ji Byun   +9 more
wiley   +1 more source

A Comprehensive Review of Clinical Studies on Bacterial Cellulose: From the Earliest Uses to Contemporary Innovations

open access: yesAdvanced Healthcare Materials, EarlyView.
Bacterial cellulose has undergone a transformative journey from early applications to its role in advanced regenerative medicine. The review has a pedagogical ambition, offering clear pathways for future research and clinical adoption. Harmonizing regulatory standards and conducting larger, well‐designed clinical trials with standardized endpoints will
Thomas Meslier   +3 more
wiley   +1 more source

Determination of two-stroke engine exhaust noise by the method of characteristics [PDF]

open access: yes
A computational technique was developed for the method of characteristics solution of a one-dimensional flow in a duct as applied to the wave action in an engine exhaust system.
Brown, G. L., Jones, A. D.
core   +1 more source

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