Model of sources: a proposal for the hierarchy, merging strategy and representation of the information sources in virtual models of historical buildings

Contributed to: Fusion of Cultures: XXXVIII Annual Conference on Computer Applications and Quantitative Methods in Archaeology – CAA2010 (Granada, Spain, Apr 6-9, 2010)

Relación entre la globalización y la internacionalización financiera: el caso de las empresas vascas

[ES] Cada vez es mayor el número de empresas que optan por acudir a mercados financieros exteriores, tanto al objeto de obtener financiación en mejores condiciones, como para realizar inversiones más atractivas que las disponibles dentro de las fronteras nacionales. La decisión de internacionalizar el área financiera de la empresa puede ser el resultado de una estrategia específica orientada al aprovechamiento de las oportunidades que ofrece el proceso de globalización financiera, que se está desarrollando de forma vertiginosa los últimos años.

The cross layer RMPA handover: a reliable mobility pattern aware handover strategy for broadband wireless communication in a high-speed railway domain

Enhancing the handover process in broadband wireless communication deployment has traditionally motivated many research initiatives. In a high-speed railway domain, the challenge is even greater. Owing to the long distances covered, the mobile node gets involved in a compulsory sequence of handover processes. Consequently, poor performance during the execution of these handover processes significantly degrades the global end-to-end performance. This article proposes a new handover strategy for the railway domain: the RMPA handover, a Reliable Mobility Pattern Aware IEEE 802.16 handover strategy "customized" for a high-speed mobility scenario. The stringent high mobility feature is balanced with three other positive features in a high-speed context: mobility pattern awareness, different sources for location discovery techniques, and a previously known traffic data profile. To the best of the authors' knowledge, there is no IEEE 802.16 handover scheme that simultaneously covers the optimization of the handover process itself and the efficient timing of the handover process. Our strategy covers both areas of research while providing a cost-effective and standards-based solution. To schedule the handover process efficiently, the RMPA strategy makes use of a context aware handover policy; that is, a handover policy based on the mobile node mobility pattern, the time required to perform the handover, the neighboring network conditions, the data traffic profile, the received power signal, and current location and speed information of the train. Our proposal merges all these variables in a cross layer interaction in the handover policy engine. It also enhances the handover process itself by establishing the values for the set of handover configuration parameters and mechanisms of the handover process. RMPA is a cost-effective strategy because compatibility with standards-based equipment is guaranteed. The major contributions of the RMPA handover are in areas that have been left open to the handover designer's discretion. Our simulation analysis validates the RMPA handover decision rules and design choices. Our results supporting a high-demand video application in the uplink stream show a significant improvement in the end-to-end quality of service parameters, including end-to-end delay (22%) and jitter (80%), when compared with a policy based on signal-to-noise-ratio information.

Sliding Mode Control Strategy for Wind Turbine Power Maximization

The efficiency of the wind power conversions systems can be greatly improved using an appropriate control algorithm. In this work, a sliding mode control for variable speed wind turbine that incorporates a doubly fed induction generator is described. The electrical system incorporates a wound rotor induction machine with back-to-back three phase power converter bridges between its rotor and the grid. In the presented design the so-called vector control theory is applied, in order to simplify the electrical equations. The proposed control scheme uses stator flux-oriented vector control for the rotor side converter bridge control and grid voltage vector control for the grid side converter bridge control. The stability analysis of the proposed sliding mode controller under disturbances and parameter uncertainties is provided using the Lyapunov stability theory. Finally simulated results show, on the one hand, that the proposed controller provides high-performance dynamic characteristics, and on the other hand, that this scheme is robust with respect to the uncertainties that usually appear in the real systems.

Sliding mode control strategy for variable speed wind turbines

EFTA 2009

Simple Coalitional Strategy Profiles in Repeated Games

This paper is a version of the discussion paper titled "Simple coalitional strategy profiles"

Learning and management skills: the internationalization of Grupo Arcor. Analysis from a process-based approach

This paper analyzes the path of the international expansion of Grupo Arcor, an Argentine multinational company specializing in confectionery. The objective is to entify corporate strategies and business learning that led this Latin American firm to establish itself as one of the leading manufacturers in confectionery industry ,particularly in the 21st Century. The analysis is primarily qualitative in order to identify the economic dimension as a determinant in the internationalization process; a processbased approach from the Uppsala Model is used for this. However, the study is also complemented with a regression analysis to test if the firm was driven to expand internationally by the expectations on the degree of globalization of the industry and the accumulation of experience in foreign markets, and if the company was influenced by psychic distance in choosing the location of its investment; given the influence of these variables in Grupo Arcor business strategies. Our findings suggest that Grupo Arcor, was able to become global due to strategies such as vertical integration, diversification of products and geographical markets (based on psychic distance) and indeed some strategies were consequence of the globalization of the sector and the accumulation of experience in foreign markets.

Enpresen hazkunde-bide ezberdinak. Hazkunde estrategien ikerketa euskal enpresa edo enpresetan

Euskal enpresen hazkunde estrategiaren azterketa da aztergai orokorra, hau da, globalizazio eta mundu teknologikoari aurre egiteko enpresek lortutako irtenbide desberdinak aztertzea. Lanaren helburua, jatorria 50. hamarkadan duen eta gaur arte euskal ekonomian eragin garrantzitsua izan duen euskal-enpresa baten hazkunde estrategiaren azterketa da, Kaiku Corporación Alimentariaren kasua hain zuzen. Kasuaren metodologian oinarrituz, hazkunde eredutzat nazioartekotze eta berrikuntza estrategiaren aldeko apustua egin duen enpresaren analisia egin da, jatorri amankomuna izan duten Iparlat eta Kaikuren desberdintasun estrategikoaren azterketak, honakoa ondorioztatzea ahalbidetuz: egoera berdinaren aurrean, bi estrategia desberdinen arrakasta.

Estrategias empresariales en el sector bancario

[ES]La internacionalización ha sido una de las principales estrategias de crecimiento llevadas a cabo por la gran banca española, sobre todo a partir de la década de los 90. Es en esta década cuando hubo un destacable salto por parte de las entidades españolas hacia el mercado latinoamericano en especial, así como hacia Europa y Estados Unidos. Por otro lado, una vez comenzada la crisis financiera -entre finales de 2007 y principios de 2008-, dicho proceso de expansión se vio mermado, debido a que la banca tuvo que afrontar una nueva etapa de reforzamiento interno en la que todavía sigue inmersa. En el presente trabajo, tomando como ejemplos los bancos Santander y BBVA, se tratarán de analizar tanto los motivos y destinos de la mencionada expansión internacional; así como el nuevo entorno en el que tras la crisis y, una vez realizados los distintos procesos regulatorios, el sistema bancario español tendrá que desarrollar su actividad. A su vez, también serán objeto de análisis los modelos de negocio planteados por las dos entidades, a través de los cuales podremos definir algunas de las estrategias que se presentan en este nuevo entorno económico-financiero.

International communication strategy followed by Ikea : analysis of campaigns in different countries, features and possible justifications of the differences

International communication strategy followed by Ikea analysis of campaigns in different countries, features and possible justifications of the differerences.

Proceso de internacionalización y estrategia de marketing de Batz Sociedad Cooperativa

El presente trabajo analiza el proceso de internacionalización y la estrategia de marketing llevados a cabo por la cooperativa industrial vizcaína Batz. Mediante ello se ha tratado de evaluar la forma en que ha actuado la empresa en relación a ambos aspectos a lo largo de su trayectoria. El trabajo comienza con unos breves apuntes dedicados a presentar algunos aspectos teóricos sobre la internacionalización de empresas y las estrategias de marketing. Una vez analizados los rasgos principales de la cooperativa objeto de estudio en el segundo capítulo, los capítulos tercero y cuarto abordan el análisis del proceso de internacionalización y la estrategia de marketing seguidos por la empresa, respectivamente. Del estudio realizado se concluye que la empresa ha seguido un proceso de internacionalización en el que destaca la coherencia entre los retos planteados en cada momento y las respuestas dadas, las cuales han sido acompañadas y respaldadas por decisiones de marketing acertadas.

Valorization of scrap tires pyrolysis oil (STPO) through a 2-stage hydrotreating-hydrocracking strategy. Process variables and kinetic modeling

232 p.

Makina erreminta sektorearen nazioartekotze estrategiak: DanobatGroup kasua

Euskal makina erreminta enpresen nazioartekotze estrategien azterketa da ikergai nagusia, arloaren alderdi orokorrak eta etorkizunerako aurreikuspenak gauzatzen badira ere. Globalizazio eta mundu interkonektatu honetan enpresa hazteko irtenbide desberdinak aztertu dira, merkatuaren eskakizunetara egokituz. Kasu praktiko gisa hazkunde eredutzat nazioartekotzearen aldeko apustua egin duen DanobatGroup enpresa talde kooperatiboa ikertu da. Enpresa eredugarria da garai zail hauetan, egindako lanaren erakusgarri eta atzerrirako urrats sendoekin, pertsonen trebetasunari eta konpromisoei esker, erronkak gainditu dituelako. Ikerketa burututa, sektorearen barne eskaria urria denez, Euskal enpresek nazioartekotu beharra dutela ikusi da.