Zobrazeno 1 - 10
of 38
pro vyhledávání: '"C Medina-Gutiérrez"'
Autor:
R. Trejo-Vazquez, J. R. Molina-Contreras, F. J. Villalobos-Piña, G Romo-Luevano, Sergio Calixto, Claudio Frausto-Reyes, C. Medina-Gutiérrez
Publikováno v:
Journal of Physics D: Applied Physics. 40:4922-4927
In this paper, we develop a sensitive optical method to monitor the surface roughness in the investigation of surfaces. By applying this method to measure the RMS surface roughness of various surfaces, we found RMS values which are comparable to thos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e206ecde06ff9d79db408dc2463e8329
https://doi.org/10.1088/0022-3727/40/16/025
https://doi.org/10.1088/0022-3727/40/16/025
Autor:
E V Mejía-Uriarte, R Y Sato-Berrú, M Navarrete, M Villagrán-Muniz, C Medina-Gutiérrez, C Frausto-Reyes, H Murrieta S
Publikováno v:
Measurement Science and Technology. 17:1319-1323
Sound velocity changes of unpolarized polycrystalline BaTiO3, in the diamond anvil cell (DAC) up to 6.8 GPa, across the tetragonal to cubic phase transition at room temperature (RT) have been detected by a photoacoustic technique. The light absorptio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f21958940591930fd35926161814bf7
https://doi.org/10.1088/0957-0233/17/6/005
https://doi.org/10.1088/0957-0233/17/6/005
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 61:2657-2662
Using Raman spectroscopy, with an excitation radiation source of 514.5 nm, and principal component analysis (PCA) was elaborated a method to study qualitatively the ethanol content in tequila samples. This method is based in the OH region profile (wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92d78ccc0b1854c867d27841472bd791
https://doi.org/10.1016/j.saa.2004.10.008
https://doi.org/10.1016/j.saa.2004.10.008
Autor:
C. Medina-Gutiérrez, J. H. García-López, R Valdivia-Hernadez, Alexander N. Pisarchik, A. Murguía-Hernandez, E Villafana-Rauda, Rider Jaimes-Reátegui
Publikováno v:
Journal of Physics: Conference Series. 23:276-284
We present a novel synchronization scheme for secure communication with two chaotic unidirectionally coupled Rossler circuits. The circuits are synchronized via one of the variables, while a signal is transmitted through another variable. We show tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb3b95a39aed43525ab51bf669a373ff
https://doi.org/10.1088/1742-6596/23/1/029
https://doi.org/10.1088/1742-6596/23/1/029
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 60:2231-2234
The potential of Raman spectroscopy in the quantitative analysis of dilute organic contaminants on aluminum substrates is evidenced in this work. Methyl-parathion microdroplets, an organophosphorus pesticide, has been used as a probe for this purpose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3321a2278fa10938ef72d9df95b0a069
https://doi.org/10.1016/j.saa.2003.11.021
https://doi.org/10.1016/j.saa.2003.11.021
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 60:2225-2229
The capability to obtain quantitative information of a simple way from Raman spectra is a subject of considerable interest. In this work, this is demonstrated for mixtures of ethanol with water and rhodamine-6G (R-6G) with methanol, which were analyz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0193d445b8f25a6fc2643b857626f752
https://doi.org/10.1016/j.saa.2003.11.020
https://doi.org/10.1016/j.saa.2003.11.020
Autor:
Claudio Frausto-Reyes, Oracio Barbosa-García, R Sato-Berrú, J.L Quintanar-Stephano, C Medina-Gutiérrez
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 60:1573-1577
The distribution of proteins in the cross section of a normal pig lens was studied by near-infrared Raman spectroscopy. The Raman spectra were measured in the visual and equatorial axes of this cross section and the protein peak intensities were dete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ef8b9bc519fcceb06513b223ea429ff
https://doi.org/10.1016/j.saa.2003.07.010
https://doi.org/10.1016/j.saa.2003.07.010
Autor:
J. L. González-Trujillo, R. Huerta-Franco, Gerardo Gutiérrez-Juárez, C. A. Ramírez-Alvarado, Oracio Barbosa-García, Claudio Frausto-Reyes, J. L. Pichardo-Molina, C. Medina-Gutiérrez
Publikováno v:
Lasers in medical science. 22(4)
Serum samples were studied using Raman spectroscopy and analyzed through the multivariate statistical methods of principal component analysis (PCA) and linear discriminant analysis (LDA). The blood samples were obtained from 11 patients who were clin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73488161960aa82804536d7849a96f31
https://pubmed.ncbi.nlm.nih.gov/17297595
https://pubmed.ncbi.nlm.nih.gov/17297595
Autor:
Rider Jaimes-Reátegui, J. Medina-Valtierra, H. García-López, Claudio Frausto-Reyes, C. Medina-Gutiérrez, J. Rafael Molina-Contreras
Publikováno v:
SPIE Proceedings.
A micro-Raman system is used to study the β-carotene of dry and fresh carrot samples in environments with variations of the temperature between 16 o C and 120 o C. It is shown that the Raman peaks intensities of the dry sample diminish considerably,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5f279c5dbf913b106badbf41cf57763
https://doi.org/10.1117/12.674466
https://doi.org/10.1117/12.674466
Autor:
R. Valdivia-Hernandez, A. Murguía-Hernandez, C. Medina-Gutiérrez, J. C. Jimenez-Godinez, Alexander N. Pisarchik, Rider Jaimes-Reátegui, J. H. García-López, C. Frausto-Reyes
Publikováno v:
SPIE Proceedings.
The possibility of secure communication with chaos is demonstrated experimentally with two simple unidirectionally coupled electronic circuits. A traditional approach has been used to synchronize the two chaotic systems. We also study, both numerical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fdf0c137c81dc889356c2c193fd5ce7
https://doi.org/10.1117/12.674591
https://doi.org/10.1117/12.674591