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The use of several techniques for non-destructive testing is a common strategy for detecting and classifying flaws in aluminium material. Techniques like multiresolution data analysis and data classifiers are valuable for obtaining as much information as possible from the flaws.…

The present paper shows a single and original measurement circuit, using instantaneous and average readouts of the chaotic dynamic of a Chua's circuit Vc1(X1) signal with binary decryption, synchrony qualification and chaotic sequence applications. The circuit was simulated (Workbench), developed…

This paper presents design hints in CMOS ring oscillators based on NOT gates. The NOT gate is used as vehicle to introduce basics on signal propagation and also to present simple design models. Both simulation and experimental results are presented…

It is shown that the Hamiltonian of a particle in a uniform gravitational field which possesses a constant of motion not related to transformations in the configuration space, can be expressed in a system of canonical coordinates such that a…

An automatic test environment (ATE) based on a PSoC has been developed to perform electrical characterization of integrated circuits (ICs). The ICs are designed for academic and research purposes as part of the Electronic Design graduate program at CINVESTAV-Guadalajara Unit;…

The Ultrasonic Pulse-Echo technique has been successfully used in a non-destructive testing of materials. To perform Ultrasonic Non-destructive Evaluation (NDE), an ultrasonic pulsed wave is transmitted into the materials using a transmitting/receiving transducer or arrays of transducers,that produces an image…

This paper presents a summary of Ionoluminescence (IL) for several minerals commonly found in jewellery pieces and/or artefacts of historical interest. Samples including silicates and non-silicates (native elements, halide, oxide, carbonate and phosphate groups) have been excited with a 1.8…

This paper presents an improvement in the method for storing information using detour type multichannel holograms. This makes in possible to increase the number of image-processing operations at the retrieval stage. One of the main contributions of this work is…

The solutions of the Schrödinger equation describing rotational states of asymmetric molecules are known to be separable as products of Lame functions in spheroconal coordinates. However, the numerical evaluation of such solutions has not been implemented in efficient and practical…