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A Method To Design Transmission Resonances Through Subwavelength Apertures Based On Designed Surface Plasmons, Jinsong Liu, Lan Ding, Kejia Wang, Jianquan Yao
A Method To Design Transmission Resonances Through Subwavelength Apertures Based On Designed Surface Plasmons, Jinsong Liu, Lan Ding, Kejia Wang, Jianquan Yao
Faculty of Engineering - Papers (Archive)
A plasmonic metamaterial is proposed for which an array of subwavelength apertures is pierced into a metallic foil whose one flat surface has been made with periodic rectangle holes of finite depth. Designed surface plasmons sustained by the holes are explored when the size and spacing of the holes are much smaller than those of the apertures. The transmission property of electromagnetic waves through the metamaterials is analyzed. Results show that the designed surface plasmons characterized by the holes could support the transmission resonances of the incident wave passing through the subwavelength apertures, and that the peak transmission wavelengths could …
Transmission Electron Microscopy Characterization Of The Bake-Hardening Behavior Of Transformation-Induced Plasticity And Dual-Phase Steels, Ilana B. Timokhina, Peter D. Hodgson, E V. Pereloma
Transmission Electron Microscopy Characterization Of The Bake-Hardening Behavior Of Transformation-Induced Plasticity And Dual-Phase Steels, Ilana B. Timokhina, Peter D. Hodgson, E V. Pereloma
Faculty of Engineering - Papers (Archive)
The effect of prestraining (PS) and bake hardening (BH) on the microstructures and mechanical properties has been studied in transformation-induced plasticity (TRIP) and dual-phase (DP) steels after intercritical annealing. The DP steel showed an increase in the yield strength and the appearance of the upper and lower yield points after a single BH treatment as compared with the as-received condition, whereas the mechanical properties of the TRIP steel remained unchanged. This difference appears to be because of the formation of plastic deformation zones with high dislocation density around the as-quenched martensite in the DP steel, which allowed carbon to pin …
Modelling And Simulation Of The Magnetically Impelled Arc Butt (Miab) Process For Transmission Pipeline Applications, John Norrish, Dominic Cuiuri, Mohammad Hossain
Modelling And Simulation Of The Magnetically Impelled Arc Butt (Miab) Process For Transmission Pipeline Applications, John Norrish, Dominic Cuiuri, Mohammad Hossain
Faculty of Engineering - Papers (Archive)
Early patents for the Magnetically Impelled Arc Butt process (MIAB) date back to 1940 [1] and the basic principles of the process have remained unchanged from this time. The process was however refined in the 1970s for use in the production of automotive components and has been used extensively in this area. Investigation of the process for pipe girth welding have been reported and commercial pipe welding heads are reported to be available in the Ukraine [2], Although the process is well established it is believed that a more fundamental analysis of the mechanisms involved would assist in the optimisation …