Rings, interconnect

The actual retina contact structure incorporates 12 or 24 independent electrodes, respectively. The electrodes were arranged concentrically to minimize the electrical stray field during stimulation. We established the microfabrication process for double metallization layers needed to obtain concentric microelectrodes. In a temper step, the electrodes were formed into a convex shape according to the curvature of the eye. The generation of convex shapes was possible since the stimulator was designed in concentric rings interconnected by s-shaped bridges (Fig. 26). 

In Table 5.5, the effective diffusivity, De, for p-xylene plus o-xylene counterdiffusion in H-SSZ-24 and H-ZSM-11 zeolites at different temperatures and a concentration relation, cp x [%] = c x [%] = 50 [%], are reported [90], It is evident that the kinetics is governed by ordinary diffusion. Additionally, the study of the counterdiffusion of p-xylene + o-xylene and the reverse case o-xylene + p-xylene in a zeolite with a 10 member ring plus 12 member ring interconnected channel-like CIT-1 gives experimental evidence for the existence of molecular traffic control [125],... 

The most-tested hydrophobic zeolite in adsorption of organic compounds from water solutions is silicalite-1 [89], This material is a molecular sieve with an MFI structure composed of pure silica. The MFI framework has a 10-MR channel system with elliptical pores having diameters of 5.2 x 5.7 A [83], Additionally, other zeolites, as the all-silica P-zeolite [216] which possesses a three-dimensional, 12-numbered ring, interconnected channel system with pore diameters of 7.1 x 7.3 A [83] have been used in the elimination of methyl tert-butyl ether (MTBE) from water solutions [88],... 

The 1 2 complexes of hexamethylbenzene with BiXs (X = Cl and Br) are inverse-sandwich compounds, with two bismuth atoms on each side of the arene plane. The supramolecular architecture is formed from tetranuclear tectons based upon eight-membered Bi4X4 quasi-rings, interconnected into a three-dimensional architecture [459]. 

If a Ufer ground is not being implemented, the radials maybe Cadwelded to a subterranean ring, with the ring interconnected to the tower foot pad via a minimum of three no. 1/0 wires spaced at 120° angles and Cadwelded to the radial ring. 

Besides the possibility of inserting fluorescent substituents in only one monomer unit, such as pyrrole or thiophene, it is noteworthy that suitable fluorescent groups have been appended in dimeric or trimeric monomer systems. Using this approach, Cihaner and Algi have initiated a programme aimed at the design and synthesis of photo- and electroactive polymer materials based on 2,5-di(2-thienyl)pyrroles (SNS). This system consist of thiophene and pyrrole rings interconnected by their a-positions and exhibit intense blue emission upon irradiation. They have reported the synthesis and characterisation of a series of novel fluorescent and electrochromic polymers based on N-substituted... 

H-BEA (H-BETA) a proton exchanged BEA zeolite specimen, characterized by a three-dimensional network of pores consisting of three families of 12-ring interconnected channels [57]. The specimen here illustrated was characterized by a silica-to-alumina ratio = 4.9, corresponding to a distribution of A1 atoms per unit... 

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