La etapa procesal para presentar la oposición en el juicio de inventarios y su incidencia frente al principio de seguridad jurídica.

El presente trabajo investigativo tiene como finalidad primordial elaborar un documento de análisis crítico jurídico que permita dar solución al vacío legal existente en el artículo 346 del Código Orgánico General de Procesos COGEP, respecto a la forma y momento procesal de presentar la oposición en el juicio de inventario, para garantizar el principio de seguridad jurídica establecido en el artículo 82 de la Constitución de la República del Ecuador. Para llevar a cabo el presente trabajo ha sido necesario enfocar el estudio en tres partes, la primera un marco teórico dentro del cual se abordan diversas temáticas que permiten fundamentar teóricamente respecto al juicio de inventarios; la segunda parte la conforma un marco metodológico en el cual se utilizan métodosEs indispensable mencionar sobre la actualidad e importancia del tema objeto de investigación, ya por que el mismo se desprende de una codificación nueva como lo es el Código Orgánico General de Procesos COGEP, vigente desde el 22 de mayo de 2016, sin embargo al ser una normativa nueva permite que se aborden dentro de su desarrollo temáticas actuales brindando de esta manera novedad al presente estudio

Spinel and Perovskite Protection Layers Between Crofer22APU and La0.8Sr0.2FeO3 Cathode Materials for SOFC Interconnects

The interaction of the metallic interconnects with the cathode and the resulting time-dependent resistance of these material combinations is a major problem in solid oxide fuel cells (SOFCs). In this study, different conductive oxide coatings were used as protective layers to improve surface stability and electrical performance, as well as to mitigate or prevent chromium poisoning of the cells. Dense layers were obtained on the steel by electron-beam physical vapor deposition, by screen printing and by electroplating. The degradation of the interface between the coated Crofer22APU alloy and the La0.8Sr0.2FeO3 (LSF) cathode was studied by resistance measurements in air at 800 degrees C up to 1000 h and analyzed by scanning electron microscopy, energy-dispersive X-ray analysis, X-ray diffraction, and secondary ion mass spectrometry after exposure. La0.6Sr0.4FeO3 measured the lowest resistance between the tested coatings. The highest resistance was found for CeO2, which also showed low protection against SrCrO4 formation. Y2O3 exhibited the lowest resistance increase; however, this coating was not protective enough to prevent the formation of SrCrO4, especially during cyclic operation. Among the Mn-Co-Fe spinel compositions tested, the lowest resistivity values and the highest Cr retention were obtained with the MnCo1.9Fe0.1O4 spinel

Comparative electrochemical performance of electrodeposited polypyrrole in protic and aprotic ionic liquids

Polypyrrole (Ppy) thin films were obtained by pyrrole (py) electropolymerization in ionic liquid (IL) media. The charge compensation dynamics as well as the electrochromic behavior of the obtained films were studied in two ILs with similar structures, being one containing –CH3 (aprotic IL) and the other containing –H (protic IL) attached to the ethylimidazolium cation. The results obtained with quartz crystal microbalance with dissipation combined with cyclic voltammetry have shown that in spite of the presence of protons in the PIL, which could favor both electropolymerization and electrochemistry of Ppy in this media, these processes are more effective in the aprotic IL, leading us to conclude that other factors must be take into account when choosing the most appropriated IL as electrolyte. Also, electrochemical reactions in both ILs were successfully associated to the transformation of chromogenic species by evaluating the electrochromic activity of the polymeric films.Fil: Fernández, Ricardo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Machado Benedetti, Tǎnia. Universidade de Sao Paulo; BrasilFil: Torresi, Roberto M.. Universidade de Sao Paulo; Brasi