Results 101 to 110 of about 13,453 (301)

In Situ Photopolymerization of Smectic B Liquid‐Crystalline Electrolytes from Mesogenic Phosphate–Diacrylate/Ionic Liquid Complexes for High‐Performance Soft Ionic Actuators

open access: yesAdvanced Robotics Research, EarlyView.
A flexible liquid‐crystalline electrolyte membrane via in situ photopolymerization of a phosphate‐functionalized mesogen, ionic liquid, and diacrylate monomer is developed. The resulting smectic B (SmB)‐phase structure enables 2D ion transport with high conductivity (10−4 S cm−1).
Chengyang Liu, Masafumi Yoshio
wiley   +1 more source

Effect of Initial Temperature on Flame Spread over a Sand Bed Wetted with Transformer Oil

open access: yesFire
A series of experiments were conducted on quartz sand beds wetted with transformer oil under initial temperatures of 80–140 °C and fuel–sand mass ratios of 1:4–1:8. The flame spreading process over the fine sand bed wetted with limited liquid fuel can be
Jiaqing Zhang   +3 more
doaj   +1 more source

部分予混合雰囲気中における可燃性固体の燃え拡がり [PDF]

open access: yes, 2003
Usually, depending on the initial mixing of fuel and oxidizer, combustion process is classified as either non-premixed or premixed burning. Although it may be useful to consider these two modes in theoretical manner, some examples show the intermediate ...
ONUMA, Yoshiaki   +5 more
core  

Study on Distance Effect to Vertical Flame Spread over PMMA [PDF]

open access: yes, 2016
Some previous experimental studies has reported width effect for upward flame spread rate on thermally thin materials. But less of study on different distance.
Li, Qian, Zhu, Hui, Zhu, Guo-qing
core   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Scaling Analysis on Pulsating Flame Spread over Liquids

open access: yesInternational Journal of Chemical Engineering, 2008
Scaling analyses based on subsurface layer instability were performed to explore the role of three independent (surface tension, gravity, and viscosity) influences on the mechanism of pulsating flame spread under normal and microgravity conditions. These
Kozue Takahashi   +4 more
doaj   +1 more source

Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

open access: yesAdvanced Science, EarlyView.
Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears   +5 more
wiley   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

open access: yesAdvanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim   +13 more
wiley   +1 more source

Effect of Gas Phase Heat Sink on Suppression of Opposed Flow Flame Spread over Thin Solid Fuels in Microgravity Environment

open access: yesJournal of Combustion, 2012
A two-dimensional numerical model of opposed flow flame spread over thin solid fuel is formulated and modeled to study the effect of gas phase heat sink (a wire mesh placed parallel to the fuel surface) on the flame-spread rate and flame extinction.
Vinayak Malhotra   +2 more
doaj   +1 more source

Thermal models for fire safety : calculation of flame spread on surfaces and heating of structures [PDF]

open access: yes, 2007
The studies presented in this thesis under the title "Thermal models for fire safety – calculation of flame spread on surfaces and heating of structures" consist of two parts: flame spread on combustible surfaces and calculation of heating of structures.
Baroudi, Djebar
core  

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