Results 71 to 80 of about 74,787 (316)

Dye‐Initiated Chirped Cholesteric Polymer Networks Exhibiting Broadband Dissipative Chiral Photonic Bands

open access: yesAdvanced Functional Materials, EarlyView.
A dye‐based photoinitiator acting as a structure‐directing element, guides the formation of a cholesteric polymer network that behaves as a chirped photonic structure with dissipative chiral coupling. Photopolymerization freezes a depth‐dependent helical pitch, broadening the Bragg resonance spectrum.
Alfredo Mazzulla   +2 more
wiley   +1 more source

Shear instabilities in shallow-water magnetohydrodynamics [PDF]

open access: yes, 2013
The interaction of horizontal shear flows and magnetic fields in stably stratified layers is central to many problems in astrophysical fluid dynamics.
Mak, Julian
core  

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

open access: yesAdvanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk   +3 more
wiley   +1 more source

Water-Jet Propellers [PDF]

open access: yesNature, 1882
VERY early in the history of steam navigation, attempts were made to employ the “hydraulic” on “water-jet” propeller. About 1782 Rumsey began to work in this direction, using a steam-engine to force water out at the stern of a boat, the inlet being at the bow.
openaire   +1 more source

Resfriamento de uma placa de aço à alta temperatura por meio de um jato d'água circular [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia MecânicaJatos d'água circulares são utilizados como um eficiente meio de controle de resfriamento de tiras laminadas a quente ...
Leocádio Júnior, Hormando
core  

Fatigue Resistance of High-Thickness Al-Alloy Sheets after Water Jet Cutting

open access: yes, 2009
Water jet cutting is a useful advanced technology of separating materials with a great industrial potential due to high cutting speed, precision, shape repeatability and possibilities to be performed automatically with a computer control.
Ivo Cerny, Dagmar Mikulova
core   +1 more source

Targeting Post‐Irradiation Thyroid Dysfunction: Electrospun Scaffolds As A Dual‐Action Approach for Antioxidant and Immune Modulation

open access: yesAdvanced Healthcare Materials, EarlyView.
Radiation‐induced hypothyroidism follows head and neck radiotherapy due to oxidative stress and inflammation. Electrospun polycaprolactone scaffolds containing adenosine have potential to modulate thyroid repair. Scaffolds enhance thyrocyte proliferation, antioxidant enzymes glutathione peroxidase and catalase, reduce senescence and apoptosis markers ...
Maria Heim   +5 more
wiley   +1 more source

Self organised criticality in abrasive water jet cutting

open access: yes, 1997
This paper demonstrates that the material removal processes employed during abrasive water jet (AWJ) cutting show evidence of Self Organised Criticality (S.O.C.).
Ohlsson, L.   +2 more
core  

Seabed Protection Systems to prevent Scour from High-Speed Ships [PDF]

open access: yes, 2010
This document reviews the scour protection systems required around port structures where these are to be used for the berthing of vessels powered by water jet systems.
Evans, G.
core  

Performance Analysis of Ageing Single-Jet Water Meters for Measuring Residential Water Consumption [PDF]

open access: yes, 2018
[EN] Single-jet meters are one of the most frequently used domestic meters that can be found in water distribution systems. Like any other water meter technology, they have significant metrological limitations that prevent them, even if recently ...
Francisco Arregui   +9 more
core   +1 more source

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