We developed an MRI compatible PET detector stack composed of two main assembly groups, called sensor tile and interface board.
In particular, a 3D analysis of the whole stack composed by 120 channels and 10 cells was carried out.
Two endplates are used to fasten a proton exchange membrane fuel cell (PEMFC) stack composed of gaskets, gas diffusion layers (GDLs), membrane electrode assemblies (MEAs) and bipolar plates.
IEEE 802.15.4 consists of a very small stack composed of the physical and Medium Access Control MACC) layers, a simple design regarding interoperability, a long battery life scheme, and a low rate (250 kbps at 2.4 Ghz) transmission.
A conventional PEMFC (polymer electrolyte membrane fuel cell) stack is composed of multiple stack composed of GDL (gas diffusion layer), MEA (membrane electrode assemblies), and bipolar plates sandwiched in between two thick metallic endplates tightened by bands or tie-bolts as to maintain proper contact pressure on its active area and gasket interface.
Nowadays, the above intermediaries are not anymore required for communication between motes and the Internet, thanks to the standardized stack composed of IEEE802.15.4 and 6LoWPAN, which is intended to replace proprietary communication proxies (application level) by standardized IP routers (network level) [15].
A precursory stack, composed of magnetron-sputtered Al top-layer, microarc-oxidized TiO2 interlayer and pure Ti substrate as bottom-layer, was used to fabricate oxidation-resistant coatings via reactive synthesis method that involves a vacuum-diffusional annealing at 600 °C and a following pre-oxidation treatment at 900 °C.
The CT unit generates an image stack composed of multiple consecutive transverse images or slices.
Images were taken under ×2.5 magnification as a stack composed of five Z planes at 150 μm intervals and as a canvas of four quadrants per well and then combined into a single three-dimensional image.
In the second step, the pressure drops are measured for stacks composed of eight different woven screens (of plain dutch type) formed with millimetric wires.
