Health at High Speed

Non-contact Deflection Measurement at High Speed

ABSTRACT: Traditional stationary or low speed deflection measurements become problematic on roads with high traffic densities. Traffic safety is decreased when survey vehicles like low speed deflectographs or stationary falling weight devices carry out measurements on highway networks. This paper describes how the Greenwood High Speed Deflectograph applies Laser Doppler Technology to provide in...

High-Speed Penternary Inverter Gate Using GNRFET

This paper introduces a new design of penternary inverter gate based on graphene nanoribbon field effect transistor (GNRFET). The penternary logic is one of Multiple-valued logic (MVL) circuits which are the best substitute for binary logic because of its low power-delay product (PDP) resulting from reduced complexity of interconnects and chip area. GNRFET is preferred over Si-MOSFET for circui...

Stephen A . Rains and the Digital Divide Health at High Speed

High-Speed Datacom VCSELs at 1310 and 980 nm

Recent progress on VCSELs for datacom applications within the author’s group at UCSB will be reviewed. Efforts on ‘all-epitaxial, long-wavelength’ InP-based devices as well as efficient, small-cavity-volume GaAsbased VCSELs will be included. InGaAlAs/InGaAsSb/InP all-epitaxial wafers processed in a conventional manner are found to provide viable VCSELs across the entire 1300-1600 nm wavelength ...

Stochastic Algorithm for Improved Operations at Isolated High Speed Intersections

The current practice of specifying simultaneous gap out logic at isolated high speed signalized intersections places constraints on the signal controller logic that cannot be satisfied under high congestion level. Further, it often results in degraded signal efficiency and dilemma zone protection. A stochastic approach is proposed in this paper with the objective of increasing safety and effici...