Results 251 to 260 of about 391,669 (298)
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Gastroenterology Nursing, 1992
Endoscopic stent placement is a well established treatment for biliary obstruction. The known disadvantage of plastic stents is their tendency to clog. This article describes another approach to treating biliary obstruction secondary to malignant neoplasms using the expandable metallic Wallstent endoprosthesis.
M, Schaffner, P, Cotton
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Endoscopic stent placement is a well established treatment for biliary obstruction. The known disadvantage of plastic stents is their tendency to clog. This article describes another approach to treating biliary obstruction secondary to malignant neoplasms using the expandable metallic Wallstent endoprosthesis.
M, Schaffner, P, Cotton
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Analytical model for metal–insulator–metal mesh waveguide architectures
Journal of the Optical Society of America B, 2012Metal–insulator–metal (MIM) waveguide mesh structures utilize X-junctions as power distribution elements to create interference and feedback effects, thereby providing rich device functionality. We present a generalized analytical model for MIM mesh structures by incorporating a modified characteristic impedance model for MIM junctions into the ...
Charles Lin +2 more
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Hypervelocity impact tests against metallic meshes
International Journal of Impact Engineering, 2006The purpose of this study is to investigate fragment clouds generated by hypervelocity impacts (HVIs) on metallic meshes. The HVIs tests have been conducted with a two-stage light gas gun facility at Kyushu Institute of Technology. Projectiles were launched at 3 km/s.
M. Higashide +4 more
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A review of metal mesh filters
SPIE Proceedings, 2006The Astronomical Instrumentation Group at Cardiff University has been developing metal mesh optical filters for more than 30 years, which are currently in use in many ground-, balloon- and space-based instruments. Here we review the current state of the art with respect to these quasi-optical components (low-pass, high-pass and band-pass filters ...
Ade P. A. R. +3 more
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Transparent Patch Antenna Using Metal Mesh
IEEE Transactions on Antennas and Propagation, 2018This communication presents the design, fabrication, and measurement of transparent antennas with metal mesh (MM) for wireless transparent applications such as smart windows, transparent mobile devices, and transparent Internet of Things. The MM was proposed as a transparent electrode with high conductivity in electrical performance, with proper ...
Seok Hyon Kang, Chang Won Jung
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Metal mesh filters for THz applications
2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics, 2007The Astronomy Instrumentation Group at Cardiff University has been developing metal mesh optical filters for more than 30 years. They are currently in use in ground-, balloon- and space-based astronomical instruments and in many laboratory-based THz applications.
C.E. Tucker, P.A.R. Ade
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Near-field effects in multilayer inductive metal meshes
Applied Optics, 2002The transmittance of inductive single-layer and multilayer cross-shaped metal meshes has been calculated with the Micro-Stripes software program. The effect of symmetric and asymmetric alignment of the crosses of one mesh with respect to another was studied and compared with transmission line theory, which presents the nonaligned case.
Karl D, Möller +3 more
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Variable Metal Mesh Coupler for Far Infrared Lasers
Applied Optics, 1970In a far infrared molecular laser the traditional pierced output mirror has been replaced by an infrared interference filter, consisting of two metal mesh reflector grids. By adjusting the spacing between the two parallel grids, the reflectance of the filter can be varied. Theory and experiment of this variable reflector are presented.
R, Ulrich, T J, Bridges, M A, Pollack
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Effects of mesh voids on insertion loss of metallic mesh coatings
SPIE Proceedings, 2007Metallic mesh thin-film coatings have been used for many years to provide electromagnetic interference (EMI) shielding on infrared windows and domes. During the fabrication of these conductive, micron-sized mesh patterns, mesh voids or holes in the mesh pattern occasionally occur.
Jennifer Halman +2 more
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Microstructure technology for fabrication of metal-mesh grids
Applied Optics, 1994Motivated by the need for highly efficient far-IR Fabry-Perot étalons for airborne and space astronomy, we have developed a high-yield photolithographic technique for producing low-loss metal-mesh reflectors. We describe the production technique and report on the mesh flatness and uniformity.
M, Rebbert +6 more
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