Las articulaciones exportadoras entre grandes y pequeñas empresas en Argentina: una oportunidad para fomentar la internacionalización de las PYMES

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Minería en la zona internacional de los fondos marinos: situación actual de una compleja negociación

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Proceso de consolidación de los mercados mayoristas de electricidad en los países centroamericanos

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Revista de la CEPAL no.60

La evolución de las ideas y las políticas para el desarrollo / Gert Rosenthal. -- Políticas macroeconómicas para el crecimiento / Ricardo Ffrench-Davis. -- Flujos de capitales: lecciones a partir de la experiencia chilena / Eduardo Aninat, Christian Larraín. -- La transformación del desarrollo industrial de América Latina / José Miguel Benavente, Gustavo Crespi, Jorge Katz, Giovanni Stampo. -- Las reformas de las pensiones en América Latina y la posición de los organismos internacionales / Carmelo Mesa-Lago. -- Aportes de la antropología aplicada al desarrollo campesino / John Durston. -- Prospección de la biodiversidad: potencialidades para los países en desarrollo / Julie M. Feinsilver. -- La inversión extranjera y el desarrollo competitivo en América Latina y el Caribe / Alejandro C. Vera-Vassallo. -- La crisis del peso mexicano / Stephany Griffith-Jones.

Numerical Model for the Dynamic Analysis of Pile Foundations

Programa de doctorado: Sistemas Inteligentes y Aplicaciones Numéricas en Ingeniería Instituto Universitario (SIANI)

El petróleo y el mero mero mar

[ES]Mesa redonda en la que se exponen desde distintos ángulos estudios que analizan la cuestión relativa al petróleo y la viabilidad de prospección y explotación en aguas cercanas a Canarias, tanto como recurso, como contaminante, como vertido en superficie y profundidad, el papel de las corrientes, abriéndose un deabte sobre las implicaciones sociales y políticas.

Prospecciones petrolíferas en Canarias

[ES] Se presentan los distintos perjuicios que la extracción de petróleo puede tener para Canarias, ante la inminente campaña de prospección que la compañía REPSOL tiene proyectada realizar en zonas cercanas a Lanzarote y Fuerteventura. Se debate en torno a la posición de los investigadores de Ciencias del Mar de la ULPGC frente a la cuestión y la necesidad de ir hacia energías limpias.

Advances in the study of soil-structure interaction effects on the dynamic response of piled structures

[EN]This Ph. D. thesis presents a simple and stable procedure for the estimation of periods and dampings of pile shear buildings taking soil-structure interaction into account. The coupled-system response is obtained by using a substructuring model. A boundary element-finite element coupling formulation is used to compute impedances and kinematic interaction factors of the pile group configurations under investigation. The proposed procedure is applied to perform parametric analyses to determine the influence of the main parameters of soil-structure interaction problems on the dynamic response of the superstructure. The scope of this thesis also encompasses the study of foundations including battered piles.

Dynamic structure-soil-structure interaction between nearby piled buildings under seismic excitation by BEM-FEM model

[EN]The dynamic throug-soil interaction between nearby pile supported structures in a viscoelastic half-space, under incident S and Rayleigh waves, is numerically studied. To this end, a three-dimensional viscoelastic BEM-FEM formulation for the dynamic analysis of piles and pile groups in the frequency domain is used, where soil is modelled by BEM and piles are simulated by one-dimensional finite elements as Bernouilli beams.

Influence of type wave and angle of incidence on seismic bending moments in pile foundations.

[EN]When analysing the seismic response of pile groups, a vertically-incident wavefiel is usually employed even though it doesnot necessarily correspond to the worst case scenario. This work aims to study the influence of both type of seismic body wave and its angle of incidence on the dynamic response of pile foundations.

On soil-structurae interaction in large non-slender partially buried structures.

[EN]This paper addresses the seismic analysis of a deeply embedded non-slender structure hosting the pumping unit of a reservoir. The dynamic response in this type of problems is usually studied under the assumption of a perfectly rigid structure using a sub-structuring procedure (three-step solution) proposed specifically for this hypothesis.

Structure-soil-structure interaction effects on the dynamic response of piled structures under obliquely-incident seismic shear waves.

[EN] This work studies the structure-soil-structure interaction (SSSI) effects on the dynamic response of nearby piled structures under obliquely-incident shear waves. For this purpose, a three-dimensional, frequency-domain, coupled boundary element-finite (BEM-FEM) model is used to analyse the response of configuration of three buildings aligned parallel to the horizontal component of the wave propagation direction.

Influence of pile inclination angle on the dynamic properties and seismic response of piled structures.

[EN] This paper aims to contribute to clarify whether the use of battered piles has a positive or negative influence on the dynamic response of deep foundations and superstructures. For this purpose, the dynamic response of slender and non-slender structures supported on several configurations of 2X2 and 3X3 pile groups including battered elements is obtained through a procedure based on a substructuring model whick takes soil-structure interaction into account.