Constant mean curvature (CMC) hypersurfaces in a compact Riemannian manifold (Mm+1, g) constitute an important class of submanifolds and have been studied extensively. In this paper we are interested in degenerating families of such submanifolds which ‘condense’ to a submanifold Kk ⊂ Mm+1 of codimension greater than 1. It is not hard to see that the closer a CMC hypersurface is (e.g. in the Hau...

Lean-burn is an attractive concept for reasons of high thermal efficiency and low nitrogen oxide (NOx) emissions, however, successful implementation in spark-ignition (SI) engines turned out to be challenging because misfire or partial burn caused by attenuated flame propagation. In order overcome this issue, microwave-assisted plasma ignition system (MAPIS) has been applied combustion systems....

Combustion characteristics (Introduction) .................................................................................................... 1 Combustion fundamentals (What it is) ..................................................................................................... 1 What it is not ...................................................................................................

This paper focuses on the synthesis and the photoluminescent properties of Ca3 xAl2O6:xEu 3þ (0rxr0.1) nanophosphors prepared by microwave-assisted combustion method without any further heat treatment. X-ray diffraction, scanning electron microscopy and photoluminescence spectroscopy were used to characterize the produced samples. Nanosized particles smaller than 120 nmwere obtained as confirme...

The possibility of applying biochar in mild torrefaction treatment to improve the thermochemical characteristics ground biomass was focus study. Camelina straw and switchgrass were torrefied a reactor using microwave irradiation at temperatures 250 °C 300 with residence times 10, 15 20 min, under nitrogen-activated inert conditions. Both addition more than 10% time significantly affected produc...

We report on a facile and rapid microwave-assisted method for preparing a sodium-cadmium metal-organic framework (having coordinatively unsaturated sodium ions) that considerably shortens the conventional synthesis time from 5 days to 1 hour. The obtained (Na,Cd)-MOF showed an excellent volumetric CO2 adsorption capacity (5.2 mmol cm(-3) at 298 K and 1 bar) and better CO2 adsorption properties ...