A two-way version of pan joists, called the waffle slab, uses prefabricated hollow sheet-metal domes to create a grid pattern of voids in a solid floor slab, saving material without reducing the slab's strength.
The models involve several material systems, dual-wall configurations, fabric-reinforced silicon carbide ceramic-matrix composite as impact-facing sheet, hollow sphere energy-absorption materials, carbon fabric and Kevlar fabric reinforced epoxy matrix composites as pressure walls.
This chapter analyzes fifty case studies, based on information provided across a wide range of membrane configurations---flat sheet, hollow fiber, and multitube---and suppliers, consultant/contractors, and end users.
(c) SEM and (d) TEM images of α-Fe2O3 hollow spheres with sheet-like subunits.
For example, selective crystallization of α-Fe2O3 hollow spheres with sheet-like subunits can be achieved by a quasiemulsion-templated method (Figure 13c, d) [74].
In this work, ZnO/NiO porous hollow spheres with sheet-like subunits were obtained by calcination of the Ni-Zn bimetallic organic frameworks (MOFs).
"We have received hollow blocks, GI Sheets, cement and a toilet bowl to repair the toilet," said Mariha.
Products based on flat sheet (FS), hollow fiber (HF), and multitube (MT) configurations are described.
In modern blood oxygenators, microporous membranes (flat sheet or hollow fibre) are used to separate the blood and gas phases.
Mass transfer and friction factor correlations for commercially available hollow fibre and flat sheet blood oxygenators have been determined experimentally.
Compared to hollow fiber and flat sheet membranes, rectangular membranes do show a combination of the characteristics in terms of mechanical strengths.
