Fault diagnosis of electrical systems using Interpreted Petri nets

Abstract

A Faraday current sensor using spatially inhomogeneous analyzers is presented. In the proposed optical architecture, the light waves coming from the sensor head travel in free space reaching a space-variant analyzer, and then they are acquired by a (one - or two-dimensional) photodetector array. This allows a full determination of the Faraday rotation induced by the electrical current, even in the case of a nonideal optical system (e.g., analyzer with poor polarization ratio). The proposed method resembles well-known techniques of phase-shifting interferometry. Validation experiments using linearly variant and azimuthal (radial) analyzers are presented and different detection schemes are compared. " 2008 Society of Photo-Optical Instrumentation Engineers.",,,,,,"10.1117/1.3041772",,,"http://hdl.handle.net/20.500.12104/41456","http://www.scopus.com/inward/record.url?eid=2-s2.0-72049087009&partnerID=40&md5=8130f1ecbb6c127fa64e57a90116a865",,,,,,"12",,"Optical Engineering",,,,"47",,"Scopus

WOS",,,,,,"current sensors; Faraday sensors; phase-shifting interferometry",,,,,,"Faraday current sensor using space-variant analyzers",,"Article" "44993","123456789/35008",,"Dávalos-Rodríguez, I.P., Centro de Investigación Biomédica de Occidente, Universidad de Guadalajara, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, México.; Ramírez-Lizardo, E.J.; Mena, J.P.; Ledezma-Rodríguez, V.; Omayra-Dávalos, N.; González-Mercado, M.G.; Durán-González, J.; Morán-Moguel, M.C.; Peralta-Leal, V.; Salazar-Páramo, M.; Ledezma-Gómez, V.",,"Davalos-Rodriguez, I.P.

Ramirez-Lizardo, E.J.

Mena, J.P.

Ledezma-Rodriguez, V.

Omayra-Davalos, N.

Gonzalez-Mercado, M.G.

Duran-Gonzalez, J.

Moran-Moguel, M.C.

Peralta-Leal, V.

Salazar-Paramo, M.

Ledezma-Gomez, V.",,"2009",,"BACKGROUND: Non-syndromic cleft lip with or without cleft palate (NSCLP) is a common malformation. The aetiology is multifactorial. An incidence of 1.1-1.39 per 1000 new births had been reported in Mexico. The folic acid intake in preconceptional stage has been reported to prevent malformations such as neural tube defects (NTD) and NSCLP. The C677T variant of the methylene-tetrahydrofolate reductase (MTHFR) gene is responsible of a thermolabile form, related to decrease of folate and increase homocysteine. This variant has been associated with CLP, in different populations, but results are still controversial. Our objective was to determine the allelic (AF) and genotypic frequency (GF) of the MTHFR-C677T variant in Mexican children with NSCLP. METHODS: Transverse comparative study in 67 Mexican children with NSCLP and a control group with 70 unrelated Mexican individuals without NSCLP. RESULTS: The AF in NSCLP was 39 %. There was no statistical difference between AF in the two groups (39 versus 41). CONCLUSIONS: In this population, genotype C677T was not a major risk factor for this malformation, however, sample size, other genes implicated and genes-environment interactions must be considered.",,,,,,,,,"http://hdl.handle.net/20.500.12104/43214","http://www.scopus.com/inward/record.url?eid=2-s2.0-77956219940&partnerID=40&md5=a2e93cf65a5944c958404802c67c2cb7",,,,,,"5",,"Revista médica del Instituto Mexicano del Seguro Social",,"549

552",,"47",,"Scopus",,,,,,,,,,,,"Non-syndromic cleft lip/cleft palate and C677T methylene-tetrahydrofolate reductase variant in Mexican children [Variante C677T del gen metileno-tetrahidrofolato reductasa en niños mexicanos con labio/paladar hendido no sindrómico.]",,"Article" "43255","123456789/35008",,"Gonzalez, C.V., Centro de Ecologia Costera, Centro Univ. de la Costa Sur, Universidad de Guadalajara, Gómez Farias No. 82, Cihuatlán, Jalisco 48980, Mexico; Palomino, B.A., Centro de Ecologia Costera, Centro Univ. de la Costa Sur, Universidad de Guadalajara, Gómez Farias No. 82, Cihuatlán, Jalisco 48980, Mexico; Vazquez, S.H., Centro de Ecologia Costera, Centro Univ. de la Costa Sur, Universidad de Guadalajara, Gómez Farias No. 82, Cihuatlán, Jalisco 48980, Mexico",,"Gonzalez, C.V.

Palomino, B.A.

Vazquez, S.H.",,"2001",,"A total of 295 stomach contents of round stingray Urobatis halleri (Urolophus halleri), from the continental shelf of Jalisco and Colima (Mexico), were analyzed. The samples were taken seasonally from September 1997 to August 1998. The index of relative importance was used to determine the prey importance. This species feeds mainly on benthic invertebrates, such as the stomatopods Eurysquilla veleronis and Meiosquilla swetti, amphipods, other crustaceans, the shrimp Processa peruviana and brachyuran portunids, and to a lesser extent, on polychaetes and fishes.",,,,,,,,,"http://hdl.handle.net/20.500.12104/41476","http://www.scopus.com/inward/record.url?eid=2-s2.0-0035056989&partnerID=40&md5=19f743ec75f42a5a510801cf18d4678c",,,,,,"1",,"Ciencias Marinas",,"91

104",,"27",,"Scopus

WOS",,,,,,"Feeding habits; Jalisco and colima; Mexico; Urobatis halleri",,,,,,"Feeding habits of the round stingray Urobatis halleri (Cooper, 1863) (Chondrichthyes: Urolophidae) from the continental shelf of Jalisco and Colima, Mexico [Hábitos alimemtarios de la raya Urobatis halleri (Cooper, 1863) (Chondrichthyes: Urolophidae) capturada en la plataforma continental de jalisci y Colima, México]",,"Article" "43246","123456789/35008",,"Santoyo-Sanchez, A., Universidad de Guadalajara, CUCEI, Departamento de Computación, Guadalajara, Jalisco, Mexico; Aguirre-Salas, L.I., Universidad de Guadalajara, CUCSUR, Departamento de Ingenierías Autlán, Navarro, Jalisco, Mexico; Ruiz-Beltrán, E., Institute Tecnológico de Aguascalientes, Departamento de Sistemas y Computación Aguascalientes, Aguascalientes, Mexico; Ortiz-Muro, V.H., Universidad de Guadalajara, CUCEI, Departamento de Mecúnica e Ingeniería Eléctrica, Guadalajara, Jalisco, Mexico",,"Santoyo-Sanchez, A.

Aguirre-Salas, L.I.

Ruiz-Beltran, E.

Ortiz-Muro, V.H.",,"2008",,"This paper deals with a diagnosis based on Interpreted Petri nets. It introduces the problem of energy interruption on electrical systems, which is a phenomenon of discrete nature where lost of the electrical energy and disconnections of several elements characterize it. Also, it presents a method for obtaining the diagnosis based on Interpreted Petri nets and error Interpreted Petri nets; the diagnosis step determines and locates faults occurring within electrical systems, i.e. it indicates which electrical component faults and specifies the kind of fault that occurred. " 2008 IEEE.