As developed by Wallace and Dadda, a method for high-speed, parallel multiplication is to generate a matrix of partial products and then reduce the partial products to two numbers whose sum is equal to the final product. The resulting two numbers are then summed using a fast carry-propagate adder. This paper presents Reduced Area multipliers, which employ a modified reduction scheme that result...

We report the detection of circular polarization during the 1994 outburst of the Galactic microquasar GRO J1655−40. The circular polarization is clearly detected at 1.4 and 2.4 GHz, but not at 4.8 and 8.4 GHz, where its magnitude never exceeds 5 mJy. Both the sign and magnitude of the circular polarization evolve during the outburst. The time dependence and magnitude of the polarized emission c...

Sign language recognition is a challenging task due to the complex action variations and the large vocabulary set. Generally, sign language conveys meaning through multichannel information like trajectory, hand posture and facial expression simultaneously. Obviously, trajectories of sign words play an important role for sign language recognition. Although the multichannel features are helpful f...

Representing the kinetic state of a patient (posture, motion, and ac‐ tivity) during vital sign measurement is an important part of continu‐ ous monitoring applications, especially remote monitoring applica‐ tions. In contextualized vital sign representation, the measurement result is presented in conjunction with salient measurement context metadata. We present an automated annotation system f...

We report a sensitive single-beam technique for measuring both the nonlinear refractive index and nonlinear absorption coefficient for a wide variety of materials. We describe the experimental details and present a comprehensive theoretical analysis including cases where nonlinear refraction is accompanied by nonlinear absorption. In these experiments, the transmittance of a sample is measured ...

The thermal diffusion factors observed for these systems vary considerably with concentration, and frequently show a change in sign at some concentration. New data on ethanol-toluene mixtures show that the sign and magnitude of the separation of the components in a thermal gradient are also strongly dependent on the mean temperature of the system. These observations, together with earlier ones ...

In order to better understand the physical mechanisms responsible for the large observed optical nonlinearities of nematic liquid crystals, we have carried out nonlinear absorption and nonlinear refraction measurements on the pure liquid crystals 5CB and 8CB, and the liquid crystal mixture E7 using picosecond, nanosecond and millisecond pulses. We have used the recently developed Z-scan a sensi...

Recently, a new high-performance JPEG steganography with a complementary embedding strategy (JPEG-CES) was presented. It can disable many specific steganalysers such as the Chi-square family and S family detectors, which have been used to attack J-Steg, JPHide, F5 and OutGuess successfully. In this work, a study on the security performance of JPEG-CES is reported. Our theoretical analysis demon...

Marketing literature has long recognized that price response need not be monotonic and symmetric, but has yet to provide generalizable market-level insights on reference price type, asymmetric thresholds and sign and magnitude of elasticity transitions. In this paper, we introduce smooth transition models to study reference-based price response across 25 fast moving consumer good categories. Ou...

In this paper, we present multipliers using a modified addition algorithm modulo m with a signed-digit(SD) number representation where m = 2 − 1, 2 or 2 + 1. To simplify an SD modular adder, new addition rules are proposed for generating the intermediate sum and carry with a binary number representation. By using the new codes for intermediate sum and carry and the end-around carry architecture...