Results 81 to 90 of about 841,077 (296)

Dispersion in a Gas Filled Hollow Core Photonic Crystal Fiber

مجلة بغداد للعلوم, 2014
Hollow core photonic bandgap fibers provide a new geometry for the realization and enhancement of many nonlinear optical effects. Such fibers offer novel guidance and dispersion properties that provide an advantage over conventional fibers for various ...
Baghdad Science Journal
doaj   +1 more source

Flax Composites With Improved Interfacial Strength Through Microbially Induced Mineral Precipitation

Advanced Materials, EarlyView.
A bio‐inspired biomineralization strategy introduces an additional hierarchy to flax fiber composites. By controlling microbe‐mediated mineral particle deposition through tuned salt concentrations, stress transfer within the natural fiber composite is enhanced.
Deniz Sayinbas, Ingo Nettersheim, Jeong‐Joo Oh, Marie‐Eve Aubin‐Tam, Julie Teuwen, Kunal Masania   +5 more
wiley   +1 more source

Hollow-Fiber Melt Electrowriting Using a 3D-Printed Coaxial Nozzle

, 2021
Herein, a 3D-printed nozzle designed for the single-step fabrication of melt electrowritten hollow fibers is introduced. To achieve this, selective laser melting (SLM) is used to fabricate the outer part of the coaxial nozzle (800 μm inner diameter) from
Fleurine Eberle (20261862), Anne Katrin Gruska (20261865), Phillipp Stahlhut (20261868), Gordon G Wallace (8377320), Benjamin Filippi (20255733), Paul D Dalton (20261871), Stephen Beirne (1521313)   +6 more
core   +1 more source

Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells

Advanced Materials, EarlyView.
Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park, Kate Chen, Su Min Ahn, Hengquan Guo, Cy Fujimoto, Jong‐Ho Choi, Lynda Amichi, Danah Kim, Seung Geol Lee, Xiaojing Wang, Jacob S. Spendelow, Sun Young Kang, Panagiotis Bexis, Eun Joo S. Park, Yu Seung Kim   +14 more
wiley   +1 more source

Photobiomodulation mitigates blood–brain barrier disruption in APP/PS1 mouse model of Alzheimer’s disease by activating the AMPK pathway

Alzheimer’s Research & Therapy
Background Photobiomodulation (PBM), which utilizes specific light wavelengths to regulate cellular metabolism, signal transduction, and gene expression, has emerged as a promising intervention for enhancing cognitive function in Alzheimer’s disease (AD).
Chunyan Ma, Yutong Ye, Xinyu Shi, Na Li, Zhiming Mu, Tao Tan, Huijuan Yin, Jianwu Dai, Yi Liu, Hongli Chen   +9 more
doaj   +1 more source

Review of Inorganic Separator Engineering for Next‐Generation Lithium–Sulfur Batteries: Compromise or Cornerstone?

Advanced Materials, EarlyView.
Inorganic compound‐modified separators transform lithium–sulfur batteries from passive polysulfide confinement to active reaction‐pathway regulation. A Practical Relevance Index (PRI)‐guided framework bridges interfacial chemistry of inorganic separators with practical constraints, establishing unified design principles for scalable, high‐energy ...
Yuting Qin, Tianyi Wang, Xingyu Wang, Kaifu Xu, Yuzhou Wang, Chengyin Wang, Bing Sun, Guoxiu Wang   +7 more
wiley   +1 more source

Wide-bandwidth low-loss 19-cell hollow core photonic band gap fiber and its potential for low latency data transmission

, 2012
A record low loss (3.5dB/km) for a wide operating bandwidth HC-PBGF is reported. Detailed time-of-flight measurements are also presented, enabling first measurements of latency and differential group delay between mode groups in HC ...
N. V. Wheeler, Gray, D. R., E. Numkam, Wheeler, N. V., Hayes, J. R., D. R. Gray, Petrovich, M. N., Baddela, N., Poletti, F., Numkam, E., D. J. Richardson, Slavík, R., N. Baddela, M. N. Petrovich, R. Slavík, J. R. Hayes, F. Poletti, Richardson, D. J.   +17 more
core   +1 more source

Release oscillation in a hollow fiber – Part 1: Mathematical model and fast estimation of its frequency

Journal of Low Frequency Noise, Vibration and Active Control, 2019
This paper studies a micro/nano scale capillary flow in a hollow fiber and its oscillation. The hollow fiber is immersed into a liquid (e.g. water), and the isolated air in the fiber plays as a spring-like oscillation. An oscillation model is established
Ling Lin, Shao-Wen Yao
doaj   +1 more source

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

All‐Amyloid Functional Coacervates

Advanced Materials, EarlyView.
This study introduces an all‐amyloid interfacial complex coacervate technique that employs charge‐mediated or functionalization‐assisted complexation of oppositely charged food protein‐derived amyloid nanofibrils to engineer functional soft constructs across multiple length scales.
Seyyed Alireza Hashemi, Mohammad Peydayesh, Laura Baraldi, Mohammad Arjmand, Raffaele Mezzenga   +4 more
wiley   +1 more source