Results 71 to 80 of about 216,398 (309)

Introducing Pure Calcium Orthophosphate Gels and Aerogels

Advanced Functional Materials, EarlyView.
The synthesis of calcium phosphate‐based gels and aerogels is reported, which exhibit highly porous structures built up of networks of nanoparticles. In case of amorphous aerogels, this leads to yet unmatched specific BET surface areas, making these materials especially interesting for biomedical applications.
Oliver Jeske, Dominik Zanker, Nina Ehlert, Bing‐Qiang Lu, Denis Gebauer   +4 more
wiley   +1 more source

Flow Instabilities in Boiling Two-Phase Natural Circulation Systems: A Review

Science and Technology of Nuclear Installations, 2008
Several decades have been spent on the study of flow instabilities in boiling two-phase natural circulation systems. It is felt to have a review and summarize the state-of-the-art research carried out in this area ...
A. K. Nayak, P. K. Vijayan
doaj   +1 more source

Boiling Two Phase Flow in Microchannels: a Review

Indian Journal of Science and Technology, 2013
The studies in boiling water in microchannel that are shaped along turbine blades has been examined since the 1970s as a means to dissipating large amounts of heat. Later, similar geometries could be found in cooling systems for computers, fusion reactors, rocket nozzles, avionics, hybrid vehicle power electronics, and space systems.
openaire   +2 more sources

CFD modelling of a two-phase closed thermosyphon charged with R134a and R404a [PDF]

, 2015
This paper examines the application of CFD modelling to simulate the two-phase heat transfer mechanisms in a wickless heat pipe, also called a thermosyphon.
Abou-Ziyan, Alizadehdakhel, Amatachaya, Annamalai, Bandar Fadhl, Churchill, De Schepper, Dunn, ESDU, Fadhl, Faghri, Groll, Hussam Jouhara, Jiao, Jouhara, Jouhara, Kafeel, Kerrigan, Lemmon, Lin, Luiz C. Wrobel, Mathioulakis, Ong, Reay, Weng, Yau, Zhang   +26 more
core   +1 more source

Chiral Nanohoops as an Efficient Spin Polarization System

Advanced Functional Materials, EarlyView.
Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta, Philipp Seitz, Mathias Hermann, Birgit Esser, Ron Naaman   +4 more
wiley   +1 more source

Visualization in cryogenic environment: Application to two-phase studies [PDF]

, 2009
11 pagesInternational audienceThis paper reviews recent technical developments devoted to the study of cryogenic two-phase fluids. These techniques span from simple flow visualization to quantitative measurements of light scattering.
Chatain, Denis, Puech, Laurent, Rousset, Bernard, Thibault, Pierre, Viargues, François, Wolf, Pierre-Etienne   +5 more
core   +3 more sources

Rational Design of Printable Carbon Nanotube Transparent Conductive Films via Data‐Driven and Mechanistic Insights

Advanced Functional Materials, EarlyView.
A machine learning and simulation‐guided strategy is demonstrated for gentle, non‐sonication dispersion of carbon nanotubes, preserving structural integrity and performance. This approach enables transparent conductive films with low sheet resistance, high transmittance, and sub‐20 µm printability.
Ying Zhou, Ken‐ichi Nomura, Shun Muroga, Makoto Yoneya, Don N. Futaba, Takeo Yamada, Reiko Azumi, Kenji Hata   +7 more
wiley   +1 more source

Numerical simulation of evaporating two-phase flow: application to concentrated solar plants with direct steam generation

MATEC Web of Conferences, 2014
Numerical simulations using CFD are conducted on a boiling two-phase flow in order to study the changes in flow patterns during evaporation. A model for heat and mass transfer at the tube inner wall and at the liquid-gas interface is presented. Transport
Dinsenmeyer Rémi, Fourmigué Jean-François, Caney Nadia, Marty Philippe   +3 more
doaj   +1 more source

Laser‐Microscribed Glass Enables Surface‐Microfluidics‐Facilitated, Affordable, Rapid Cancer Diagnosis

Advanced Functional Materials, EarlyView.
A transparent, laser‐microscribed glass platform enables cancer diagnosis within 1 h—much faster than histology, which takes days, and free from the chemical or contrast risks of MRI or CT scans. The antibody‐functionalized rough glass surface captures viable cancer cells directly from suspension, allowing instant optical readout and offering a rapid ...
Anish Pal, Snehasis Mishra, Arani Mukhopadhyay, Ilias Papailias, Atique U. Ahmed, Constantine M. Megaridis   +5 more
wiley   +1 more source

Active Conversion of Bubbly Flow into Slug and Annular Flow during Microchannel Flow Boiling Using Thin-Film Platinum Microheaters

Proceedings
This paper reports, for the first time, on the use of thin-film platinum microheaters to influence the flow boiling of DI water in microchannels with rapid low power heating pulses.
Mark Schepperle, Sebastian Arnold, Peter Woias   +2 more
doaj   +1 more source