Results 121 to 130 of about 514,224 (351)

Analysis of Vorticity and Velocity Fields of Jets from Gas Injector Using PIV

open access: yesApplied Sciences
The present article offers a detailed analysis of helium jet velocity and vorticity intensity distribution using the particle image velocimetry (PIV) technique. A gaseous fuel injector featuring an interchangeable tip was implemented.
Giovanni Cecere   +4 more
doaj   +1 more source

Is there room for shared cars in Italy? Considerations from some recent experiences [PDF]

open access: yes
Car sharing is increasing its role worldwide as an alternative transport mode, that could contribute to a more sustainable urban mobility by reducing congestion and pollution.
Grimaldi, Raffaele, Laurino, Antonio
core   +1 more source

Future “greener” urban transport: accessible, mobile and resilient cities? [PDF]

open access: yes, 2013
Geographers, amongst others, have been considering urban futures for some time now. They all try to conceptually understand what a “sustainable city” in Europe / the UK / globally might look like.
Kotter, Richard
core  

Solar Heating Enhanced Selective Recovery of Metal Ions Through Flowing Electrodes Enabled by Hybrid Carbon Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
A new electrochemical system based on a microporous hybrid of carbon nanoplatelets and nanotubes to selectively capture Ni2+ from wastewater is constructed. The system temperature rises rapidly when irradiated with sunlight, which enhances the Ni2+ removal rate by 250% and the selectivity by 53%, and the energy consumption is also reduced by 51 ...
Ziquan Wang   +11 more
wiley   +1 more source

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

open access: yesAdvanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li   +12 more
wiley   +1 more source

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