Development of an ultrasonic high-pressure roller press

Autor: Alain Chamayou, Y. Vargas-Hernandez, L. Gaete-Garretón, John A. Dodds, W. Valderama-Reyes, F. Montoya-Vitini

Publikováno v: Chemical Engineering Science
Chemical Engineering Science, Elsevier, 2003, 58 (19), pp.4317-4322. ⟨10.1016/S0009-2509(03)00281-1⟩
CHEMICAL ENGINEERING SCIENCE
Artículos CONICYT
CONICYT Chile
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It is widely known that particle size reduction processes have a low energetic efficiency. In this paper, we present experimental results obtained by a new grinding machine using ultrasound to enhance the performance of a roller mill. The required en

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19ec774067560c1b13f6fc3711bc4951
https://doi.org/10.1016/s0009-2509(03)00281-1

Ultrasonic detectors for high-intensity acoustic fields

Autor: S. Pino-Dubreuil, F. Montoya-Vitini, Y. Vargas-Hernandez, L. Gaete-Garretón

Publikováno v: Sensors and Actuators A: Physical. :410-414

The design, construction and performance of two types of miniature ceramic hydrophones are described. They are intended to measure acoustic pressure in a strongly cavitating environment at low ultrasonic frequencies. One of the devices has a diameter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7424875c4402c5a57d9a185b652ae0e7
https://doi.org/10.1016/0924-4247(93)80070-w

Bound for linear complexity of quadratic functions in F/sub p

Autor: J. Muñoz Masqué, F. Montoya Vitini, A. Peinado Dominguez

Publikováno v: Proceedings IEEE 33rd Annual 1999 International Carnahan Conference on Security Technology (Cat. No.99CH36303).

Information security is of capital importance, and several cryptographic techniques have been developed to perform the security services required, not only data confidentiality. Taking into account the high speed of the current broadband, the only cr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64ffee7eed70aed8fb8213b45070c9ab
https://doi.org/10.1109/ccst.1999.797936

A simple non-linear technique for secondary calibration of ultrasonic probes

Autor: F. Montoya-Vitini, J.A. Gallego Juárez, Y. Vargas Hernández, L. Gaete-Garretón

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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4 páginas, 7 figuras
This paper presents a method for frequency-response evaluation of ultrasonic probes in air. It mainly consists of propagating a non-linear plane acoustic wave in a waveguide and in measuring its harmonics content by alterna

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6ba75b9d81da9d6e88f2b495c483fc4
http://hdl.handle.net/10261/72092

Algorithm for computing minimum distance

Autor: M. C. Rodríguez-Palánquex, L.J. Garcia-Villalba, F. Montoya-Vitini

Publikováno v: Electronics Letters. 35:1534

A new class of curves, the so-called quasi-Hermitian curves, on F/sub q/ (with q=2/sup j/) are presented. An algorithm which enables the exact minimum distance for the corresponding Goppa codes to be determined is also presented. This work leads to t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b223b861e381147122eb62c4025fc167
https://doi.org/10.1049/el:19991017