Side channel cryptanalysis techniques, such as the analysis of instantaneous power consumption, have been extremely e ective in attacking implementations on simple hardware platforms. There are several proposed solutions to resist these attacks, most of which are ad{hoc and can easily be rendered ine ective. A scienti c approach is to create a model for the physical characteristics of the devic...

The testing of power quality in the laboratory requires waveform sources to emulate the various disturbances present in electrical networks. Often arbitrary waveform generators are used to recreate these disturbances. The main limitation of this technique is the periodicity of their output signals. To circumvent this limitation, this paper proposes the usage of the Csound sound synthesiser soft...

During the last 20 years we have witnessed an amazing increase in the application of ultrasonic energy in different fields of science. This is especially true for analytical chemistry. The number ofmanuscripts devoted to almost all kinds of analysis dealing with the uses of ultrasonic energy continues to grow year by year. As the uses of ultrasonication have become increasingly important in ana...

Thermophones for over a century have been thought to function as thermo-acoustic devices converting an alternating current to rapid temperature changes in thin platinum films. Subsequent pressure changes in the surrounding air allow the sound to propagate. Recently, thermophones from nanoscale sheets of carbon nanotubes (CNTs) are claimed to have far lower specific heat than platinum, and there...

We have developed a series of techniques which are useful for operating two Blumlein generators from one Pulse power source, or a single Blumlein with two separate lines and switches. These techniques and operating experience with these devices are outlined in this puper as applied to the Gemini dual Blumlein, and the Tempo device with two switches.

This paper presents an overview and description of the approach to be used to investigate the behavior and the defect sensitivity of various ultrasonic guided wave (UGW) modes propagating specifically in composite cylindrical vessels in the framework of the safety of hydrogen energy transportation such as hydrogen-powered aircrafts. These structures which consist of thick and multi-layer compos...

A microphone array that emphasizes sound sources located in a particular 2-dimensional area is described. We previously developed a method that estimates the power spectra of target and noise sounds using multiple fixed beamformings. However, that method requires the areas where the noise sources are located to be restricted. We describe the principle of this limitation then propose a procedure...

Frequency of noise can affect human beings in different ways. The sound of firecrackers is a type of intensive impulsive noise, which is hazardous. In this paper, the noise produced by firecrackers during celebration festivals in Aurangabad (M.S.), India is measured. The noise is analyzed from the study of power spectra for different types of firecrackers. Noise measurements of firecrackers sho...

The theory for calculation and/or measurement of sound power based on the classical velocity-based radiation mode (V-mode) approach is well established for planar structures. However, the current V-mode theory is limited in scope in that it can only be applied to conventional motion sensors (i.e., accelerometers). In this study, in order to estimate the sound power of vibrating beam and plate s...