The brass tubes with foam cores of AlSi7SiC3, AlSi7SiC3Fe1 and AlSi7SiC3Fe3 were produced as the crush-boxes with circle and square cross-section. Then axial compressive behavior and energy absorption capability of the foam-filled tubes were investigated during the quasi-static progressive plastic buckling. The uniaxial compressive stress–strain curves of the foam-filled brass tubes exhibited t...

Foam injection is widely applied in amounts of fields to drilling, production, and formation protection. Sometimes, the application result is disappointing, which is caused by the failure of bubble generation in foam flooding. Therefore, it is necessary to seek ways for improving the performance of foam injection. An increased disturbance to the stratum, like the vibration caused by a seismic o...

Alkaline Water Splitting In article number 2301405, Ravichandar Babarao, Seunghyun Lee, and co-workers demonstrate excellent bifunctional activity for water-splitting from metal-organic framework derived boron-doped cobalt-oxide/Cobalt metal@N-doped carbon 3D mesoporous heterostructures grown vertically on Ni foam substrate. The synergistic effect between boron doping the modulated cobalt oxida...

The metal deck is a building material used on the roof of house for protection. While rice straw plant that forms after harvested. Rice straws will usually be burned by farmers to produce fertile soil; however, this encourage open burning which can destroy sustainability environment needs avoided. However, there are also many types decks, including decks with Polyurethane foam (PU Foam) conside...

In this work, we have explored the feasibility of alveolar open-cell β-SiC foams as catalyst support for solar hydrogen production. For that purpose, Pt and Ru nanoparticles been obtained, by means photoassisted synthesis, on TiO2-coated tested in gas-phase production from water-ethanol mixtures a tubular reactor coupled to compound parabolic collector (CPC). Subnanometre-sized metal or metal/o...

milk-based espresso coffee is one of the most popular beverages. foam is an essential quality characteristic for this beverage. foam formation and stability is mainly related to the milk composition. in this study the influence of three different concentrations of xanthan gum (0.05, 0.1 and 0.2 g dm-3) and three different temperatures (50, 60 and 70 °c) on foam stability were examined and exper...

Foam fraction can be retrieved from space-based microwave radiometric data at frequencies from 1 to 37 GHz. The retrievals require modeling of ocean surface emissivity fully covered with sea foam. To model foam emissivity well, knowledge of foam properties, both mechanical and dielectric, is necessary because these control the radiative processes in foam. We present a physical description of fo...

In this study, carbon foams prepared from the by-products of Finnish forest industry, such as tannic acid and pine bark extracts, were examined supports for 5/5% Cu/Ni catalysts in hydrotreatment furfural to 2-methylfuran (MF). Experiments conducted a batch reactor at 503 K 40 bar H2. Prior metal impregnation, foam was activated with steam (S1), extracts ZnCl2 (S2) washed acids (HNO3 or H2SO4)....

This report contains the results of attempting to improve on the results of Scott R. Sawyer and Alan M. L’Esperance research paper “Investigation of Paraffin Wax as an Energy Storage Medium Within a Shell-and-Tube Heat Exchanger.” The overall goal of the paper mentioned was to investigate the usefulness of wax as an energy storage medium. Scott R. Sawyer and Alan M. L’Esperance determined that ...

The annular foam breaker is one which uses the vacuum and shear force generated by the Coanda effect to break foam. The pressure distribution directly affects its performance. So an investigation on the flow characteristics inside the annular foam breaker is important to optimize its structure. In this paper, the computational fluid dynamics (CFD) code, FLUENT, is employed to simulate the flow ...