This paper presents faster inversion-free point addition formulas for the curve y(1 + ax) = cx(1 + dy). The proposed formulas improve the point doubling operation count record from 6M + 5S to 8M and mixed addition operation count record from 10M to 8M. Both sets of formulas are shown to be 4-way parallel, leading to an effective cost of 2M per either of the group operations.

We measured contrast thresholds for Gabor targets in the presence of maskers which had higher or lower spatial frequencies than the targets. A high-pass fractal masker elevated target contrast thresholds at low and intermediate pedestal contrasts in both monocular and dichoptic modes of presentation, suggesting that the masking occurs after a monocular processing stage. Moreover we found that a...

Low-density parity-check (LDPC)-coded orthogonal frequency division multiplexing (OFDM) is studied as an efficient coded modulation scheme suitable for simultaneous chromatic dispersion and polarization mode dispersion (PMD) compensation. We show that, for aggregate rate of 10 Gb/s, accumulated dispersion over 6500 km of SMF and differential group delay of 100 ps can be simultaneously compensat...

In three experiments we measured reaction times (RTs) and error rates in identifying the global structure of spatially filtered stimuli whose spatial-frequency content was selected by means of three types of 2-D isotropic filters (Butterworth of order 2, Butterworth of order 10, and a filters with total or partial Gaussian spectral profile). In each experiment, low-pass (LP), bandpass (BP), and...

Contactless measurement of important semiconductor parameters has become a popular trend of current semiconductor technology. Here we will describe an improved version of radio frequency photoconductive decay (RFPCD) operating in the ultra-high frequency (UHF) region. This work will show that the improved technique is capable of measuring samples ranging in size from submicron thin films to lar...

Glossary: Azimuth – direction along the horizon relative to a listener Δt – difference in the time of arrival of a sound at the two ears Δfi – difference in the frequency-intensity spectra of a sound at the two ears Functional head size – the time it takes for sound to travel around the head from one ear to the Octave – an interval between two frequencies that have a 2 to 1 ratio (.25 kHz to .5...

There is quite a clear anticorrelation between the intrinsic peak frequency and the overall radio source size in Compact Steep Spectrum (CSS) and GHz Peaked Spectrum (GPS) radio sources as shown by O’Dea (1998). This feature is interpreted in terms of synchrotron self-absorption (although free-free absorption may play a role as well) of the radiation emitted by a small radio source which is gro...

It is more than 15 years since high frequency oscillatory ventilation (HFOV) was first described as a technique of ventilation [ 1 ]. In the intervening period it has passed through a phase of being a physiological curiosity, where it could be demonstrated that normal gas exchange could be maintained using tidal volumes much smaller than deadspace at rates much greater than what was then consid...

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