The Dixmier trace and the Wodzicki residue for global pseudo-differential operators on compact manifolds

In this note, we announce the results of our investigation on the Dixmier trace and the Wodzicki residue for pseudo-differential operators on compact manifolds. We give formulae for the Dixmier trace and the non-commutative residue (also called Wodzicki’s residue) of invariant pseudo-differential operators on compact manifolds with or without boundary. For every closed manifold, the notion of global symbol for invariant pseudo-differential operators will be based on the Fourier analysis associated to every elliptic and positive operator (developed by M. Ruzhansky, V. Turunen and J. Delgado). In particular, for each compact Lie group we will use its representation theory. For the analysis of operators on compact manifolds with boundary, we will use the non-harmonic analysis associated with boundary valued problems (developed by M. Ruzhansky, N. Tokmagambetov, and J. Delgado).En esta nota se anuncian los resultados de nuestra investigación sobre la traza de Dixmier y el residuo de Wodzicki para operadores pseudodiferenciales sobre variedades compactas. Se calcula la traza de Dixmier y el residuo no conmutativo (residuo de Wodzicki) de operadores pseudodiferenciales invariantes sobre variedades compactas con o sin borde. Para cada variedad cerrada (suave, compacta y sin borde), se emplea la noción de símbolo global que viene dada por el análisis de Fourier asociado a cada operador elíptico y positivo (desarrollado por M. Ruzhansky and V. Turunen para para grupos de Lie y por M. Ruzhansky, N. Tokmagambetov y J. Delgado para variedades cerradas). En particular, para cada grupo de Lie compacto, se usa su teoría de representación. Respecto al análisis de operadores sobre variedades con borde, se usa el análisis no armónico asociado a problemas con valores de frontera (introducido por M. Ruzhansky, N. Tokmagambetov, y J. Delgado)

THERMOGRAVIMETRIC ANALYSIS OF THERMAL AND KINETIC BEHAVIOR OF ACACIA MANGIUM WOOD

Thermogravimetric analysis was used to study the thermal behavior of Acacia mangium wood under inert atmosphere at heating rates ranging from 5 to 15C min -1, from room temperature to 800C. Weight losses of A. mangium wood in inert atmosphere were found to occur in three stages. These three states are generally associated with the decomposition of the three main components of the lignocellulosic materials. Most decomposition occurred in the range of 300-400C (80% weight approximately). The kinetic parameters of the process were evaluated using the independent parallel reaction model, attributed to the three main components of lignocellulosic materials: hemicelluloses, cellulose, and lignin. The values of activation energy, preexponential factor, and contribution factor were similar to those reported in other studies for this type of biomass. The model proposed predicted an acceptable correlation between the experimental and the calculated curve to the decomposition of A. mangium, with an error of less than 3% of deviation in the temperature range studied

The impact of public research contracts on scientific productivity

We analyse a competitive research-oriented public programme established in Spain, the Ramon y Cajal Programme, intended to offer contracts in public research centres to high-quality researchers. We study the effects of the programme on the ex post scientific productivity of its recipients, relative to non-granted applicants with comparable curricula at the time of application. The full sample results demonstrate that the programme has a positive and significant effect on the scientific productivity of the recipients, as measured both by the amount of published contribution and by the impact of their publications. Consequently, receiving a contract affects the quantity, but also increases the quality, of the contract recipients' publications.Research funding from the Ministry of Finance and Competitiveness, Grant Nos. ECO2015-65204-P (Alonso-Borrego), ECO2014- 57442P (Romero-Medina), ECO2015-70331-C2-1- R (Sánchez- Mangas), MDM20140431 (Alonso-Borrego and Romero- Medina) and Comunidad de Madrid, Grant No. MadEco-CM S2015/HUM-3444 (all authors) is acknowledge

Effect of Hexadecyltrimethyl-Ammonium Loaded Montmorillonite on The Cu Adsorption: Adsorption Surface Sites Involved

Na raw montmorillonite (Mt) and two organomontmorillonites (OMt) with different hexadecyltrimethylammonium bromide (HDTMABr) was used to adsorb Cu2+. TheCu2+ adsorption isotherms were performed, and Langmuir, Freundlich and SIPS mathematical models were evaluated.According to the R2 term, the experimental data were appropriately described by SIPS models for all the samples.Thermal analysis of the OMt adsorbents and their Cu2+ adsorbed products indicated that HDTMA was associated with cation exchange and Van der Waals interactions to the Mt surface. The decrease of the de-surfactant temperaturemainly for MH0.5-Cu respect to MH0.5 sample would indicate a weaker Van der Waals interactions of alkyl chains at the external surface by the Cu presence. The Cu2+ and the HDTMA entrance at the interlayer of Mt was evidenced by XRDanalysis, where the cationic exchange process occurs. The zeta potential values behavior evidenced the importance of the external surface participation in the Cu2+ adsorption mainly for OMt samples.Fil: Fernández Morantes, César. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; ArgentinaFil: Fernández Solarte, Alejandra María. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; Argentina. Fundación Universitaria Los Libertadores; ColombiaFil: Torres Sanchez, Rosa Maria. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; Argentin

Estrategias de posicionamiento en el mercado y el incremento de ventas de conservas de pescado Puerto Inka, en la empresa Corporación San Rafaelito J y M S. A. C. periodo 2020

Este proyecto tiene como objetivo sustentar que la implementación de estrategias de posicionamiento en el mercado incrementó las ventas de conservas de pescado “Puerto Inka” en la empresa Corporación San Rafaelito JyM SAC. Empresa dedicada a la Abastecimiento, Distribución y Reparto de productos de consumo masivo en los mercados mayoristas de Lima Norte. Durante nuestra experiencia profesional se establecieron indicadores de gestión, se elaboró planes de acción y se estableció controles operacionales utilizando la metodología del ciclo de Deming como herramienta de gestión, realizando un conjunto de acciones de mejora en el área de logística para el traslado de mercancías, se implementó un plan anual de trabajo en marketing digital y se potencio a la fuerza de ventas, creando una cultura de alto rendimiento entre los integrantes de la empresa. Mediante la implantación de indicadores de gestión se pudo comprobar que la interacción de las áreas involucradas mejoró notablemente; al cierre del año 2020 existió un incremento del 23% de las ventas con respecto al año anterior. Así mismo, mediante las estrategias de Marketing aplicadas, se creó expectativas en los clientes que reconocen la calidad de las conservas de pescado, incrementando el consumo de los productos en sus distintas presentaciones

Analysis of MBLOCA and LBLOCA success criteria in VVER-1000/V320 reactors. New proposals for PSA Level 1

The specific configuration of the safety systems in VVER-1000/V320 reactors allows a comprehensive study of the Loss of Coolant Accident (LOCA). In the present paper, a verification of the success criteria of the event trees headers for the medium and large break LOCA sequences is conducted. A detailed TRACEV5P5 thermal-hydraulic model of the reactor has been developed, including all safety systems. When analyzing the results of all sequences, some conservatism is observed in certain specific configurations as the success criterion of some headers is not consistent with the classic PSA level 1. Therefore, new proposals for the LOCA event trees are performed based on a reconfiguration of LOCA break ranges and the use of the expanded event trees approach

An Experience of PBL in the Learning of Urban Planning. Chair of Urbanism IIA, FAUD, UNC, Argentine Republic

Within the framework of the CITYLAB LA "Engaging students with sustainable cities in Latin-America" Project, ERASMUS Program, this article reflects on the application of the Project-oriented Problem-Based Learning pedagogical method in the workshop work carried out by the Chair Urbanism IIA –Faculty of Architecture, Urbanism and Design, National University of Córdoba, Argentine Republic– in the first quarter of the school cycle 2017–, called “Urban-Territorial Plan for the Municipality of Villa Allende, Province of Córdoba. Scenario 2032”. An evaluative analysis of the results of this experience is carried out in relation to the teaching-learning process proposed by the Chair. The Chair Urbanism IIA belongs to the 5th year of the Architecture Degree and its main objective is that students develop professional competences for the study and intervention of the contemporary city as an integral fact inserted in various territorial and contextual scenarios, from the paradigm of environmental sustainability.Fil: Sanchez, Monica Elisa. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; ArgentinaFil: Cebrián, Victoria. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; ArgentinaFil: Repiso, Luciana Ines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Instituto de Ambiente Humano "liliana Rainis"; ArgentinaFil: Torres, César. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; ArgentinaFil: Ruiz, Jorge. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentin

Crude Oil Desalting Process

Desalting is a water-washing operation performed initially at the production field and thereafter at the refinery site for additional crude oil cleanup. Salt and water content specifications are even more rigid because of their negative effect in downstream processes due to corrosion, and catalyst deactivation. An optimum formulation concept is presented to describe emulsion breaking in desalting process. In the stabilization mechanism is accepted that water droplets are stabilized by the formation of a mechanically strong and viscoelastic film at the interface composed of asphaltenes. In the case of water-in-crude-oil emulsions, a balanced optimum formulation is attained by adding to the lipophilic natural surfactants contained in the crude oil, demulsifiers which are hydrophilic. The aim is to relate the nature and concentration of the added demulsifier products to the amphiphilic mixture at the interface. All formulation parameters, such as solvent, alcohols, kind and concentration of demulsifier, amoung others, can be explained for proportional and saturation regimens

ViCoCoS-3D: Videoconferencing common scenes

This paper presents a 3D video dataset containing sequences with typical content from videoconferencing scenarios. The objective of this dataset is to provide freely-available sequences for the research community to support the develop-ment and evaluation of processing techniques applicable to 3D videoconferencing systems. Therefore, a detailed description of the generation process and the content characteristics is provided, together with insights of possible applications of the datase