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Structural parameters of a 140GHz FWTWT slow wave structure are designed. Cold characteristics such as dispersion and impedance show good agreement with those analyzed by CST and theoretical method, respectively. A test mold has been fabricated by EDM, showing the fabrication possibility in EDM.
We demonstrate a tunable optical delay element using wavelength conversion in a highly nonlinear fiber, dispersion compensating fiber, and optical phase conjugation. A continuous delay of up to 1.16-μs equaling >55,000 symbols at 50 Gb/s, for 100 Gb/s NRZ-DQPSK and 50 Gb/s NRZ-DPSK modulation formats, is demonstrated.
We analyze nonlinear distortions caused by integrated silicon strip waveguides for analog applications. Performance degradations due to interactions of nonlinear Kerr effects, chromatic dispersion and carrier dynamics are discussed.
This paper investigates the influence of wave velocity and the dispersion of waves associated with variations in seismic ground motions, on the inelastic responses of four 344 m long bridges. The bridges were 9 span continuous prestressed concrete box girders supported on sliding bearings, which eventually permitted movement in the longitudinal direction of the bridges, with shear keys that prevented...
Results of the theoretical and numerical simulation studies of a mega watt, large diameter terahertz backward wave oscillator are presented in this paper. The device consists of a large cross-section (overmoded), slow wave structure (SWS) with a unique profile of wall radius specifically designed to support surface wave and to provide a strong beam-wave coupling at moderate voltage. The Particle-in-cell...
Zero-day attacks - especially those that hide the attack exploit by using code obfuscation and encryption - remain a formidable challenge to existing network defenses. Many techniques have been developed that can address known attacks and similar new attacks that may arise in the future. Some methods, like Earlybird and Polygraph, focus on string-based content prevalence in payloads; others focus...
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