This work presents a validation of wave parameters from the new sixty years Downscaled Ocean Waves (DOW) reanalysis database. This study compares quantiles of the Gumbel distribution of Hs (significant wave height) and Tp (peak period) from simulated data with an 11 months' time series obtained from a buoy moored seaward on the Santa Catarina coast. Analysis by means of Gumbel distribution quan...

This work presents a case study which includes regions of large rapidly varying vertical velocities observed by a VHF wind-profiler at Aberystwyth (52.4 N, 4.1 W). Analysis indicates that this region is associated with gravity waves above the tropopause level and simultaneous regions of convective activity below the tropopause level. This case study also suggests that convective activity can be...

We have performed extensive radio channel measurements in different radio environments at 2.15 GHz frequency. A spherical array and a wideband radio channel sounder were utilized at the mobile station in order to characterize the spatial radio channel at the mobile. The measurement setup, presented in [1], enables the full 3D spatial and polarization characterization of the wideband mobile radi...

*1 “Xi” (Crossy): “Xi” (read “Crossy”) and its logo are trademarks of NTT DOCOMO. *2 OFDMA: A radio access scheme that uses Orthogonal Frequency Division Multiplexing (OFDM). OFDM uses multiple low data rate multi-carrier signals for the parallel transmission of wideband data with a high data rate, thereby implementing high-quality transmission that is highly robust to multipath (see *3) interf...

Vehicular Ad hoc Networks (VANET) is an emerging technology which attracted a lot of attention in recent years. VANETs are used for improving road safety and to provide variety of value added services. There are some security issues and attacks associated with the VANET due to its dynamic changing topology. This paper focuses on the detection of jamming attack and providing solution to this att...

Radiofrequency ablation is a procedure used to destroy nerves. A radio wave produces an electrical current used to heat up a small area of nerves, and this stops or reduces pain signals from the area. There is not enough information from clinical studies to be certain that this works in most people. Because we don’t yet know that this works, the Company considers this treatment investigational ...

Distance estimation plays an important role in location-based services, which has become very popular in recent years. In this paper, a new short range cricket sensor-based approach is proposed for indoor location applications. This solution uses Time Difference of Arrival (TDoA) between an optical and an ultrasound signal which are transmitted simultaneously, to estimate the distance from the ...

Radiofrequency ablation is a procedure used to destroy nerves. A radio wave produces an electrical current used to heat up a small area of nerves, and this stops or reduces pain signals from the area. There is not enough information from clinical studies to be certain that this works in most people. Because we don’t yet know that this works, the Company considers this treatment investigational ...

We present plane-wave-type solutions of the lowest order superstring effective action which have unbroken space-time supersymmetries. They describe dilaton, axion and gauge fields in a stringy generalization of the Brinkmann metric. Some conspiracy between the metric and the axion field is required. We show that there exists a special class of these solutions, for which α stringy corrections to...

Controlling light from single emitters is an overarching theme of nano-optics. Antennas are routinely used to modify the angular emission patterns of radio wave sources. "Optical antennas" translate these principles to visible and infrared wavelengths and have been recently used to modify fluorescence from single quantum dots and single molecules. Understanding the properties of single molecule...