ProjectLeader: a Constraint-Based Process Support for the Distributed Design of Component Based Products

In this paper we present a support that helps organizing distributed design of products belonging to a product family. We model the product to be developed as a component-based tree of object templates, develop a logic-based language that allows expressing diverse development constraints and use these constraints to guide the design process. The main objective of our support is to save time and development effort in increasing parallel work and avoiding roll-backs. For that, it reasons in terms of correctness of the future, final state of the product, and verifies that the product state after each operation allows the reacheability of such a state

Assessing Field Pressure and Plume Migration in CO2 Storages: Application of Case-specific Workflows at in Salah and Sleipner

AbstractPerformance assessment of CO2 geological storage aims at applying a specific workflow adapted to the site to be considered, using iterations between modeling tools and methods together with monitoring techniques. In the frame of the CO2ReMoVe European project site specific innovative workflows have been applied at In Salah (Krechba reservoir) and Sleipner (Utsira sand formation reservoir) to predict the reservoir pressure field and the associated CO2 plume migration. The workflows we applied benefit from appropriate site monitoring techniques: respectively InSAR satellite imaging for the Krechba reservoir and 4D Seismics for the Utsira sand formation storage. Indeed, simulation of the reservoir pressure and the plume migration are the two major modeling issues to deal with when considering storage efficiency and safety -together with public awareness when addressing the public acceptance issue

CO2 streams containing associated components—A review of the thermodynamic and geochemical properties and assessment of some reactive transport codes

AbstractModelling of the impact on storage of “ CO2-associated components” has rarely been addressed so far. This review, performed within the European research project CO2ReMoVe, exposes a selection of CO2 streams compositions coming from thermal power plants emissions and those injected in pilot sites part of the CO2ReMoVe project. It highlights the lack of data coming from laboratory experiments to describe properly the physical properties of some relevant gas mixtures. The geochemical impact of only 2 components (SO2 and H2S) is evidenced by some geochemical studies. Concerning the numerical modelling, four reactive transport codes (PHREEQC, SCALE2000, TOUGHREACT and COORES) were assessed. Actual limitations lie mainly in the capacity of calculating the physical properties of the whole set of gases (CO2–O2–SO2–N2–Ar–NOx–H2S–COS–CO–H2–HCl–NH3–CH4–C2H6–H2O). The new data acquired within on-going French projects will complete the knowledge of such complex gas mixtures behaviour

SEEMP: A Semantic Interoperability Infrastructure for e-government services in the employment sector

This paper presents SEEMP, a marketplace to coordinate and integrate public and private employment services (ESs) around the EU Member States. The need for flexible collaboration in the marketplace gives rise to the issue of interoperability in both data exchange and share of services. SEEMP proposes a mixed approach that relies on the concepts of services and semantics. SEEMP approach combines Software Engineering and Semantic Web methodologies/tools in an infrastructure that allows for a meaningful service-based communication among ESs

The SEEMP Approach to Semantic Interoperability for E-Employment

SEEMP is a European Project that promotes increased partnership between labour market actors and the development of closer relations between private and public employment services, making optimal use of the various actors’ specific characteristics, thus providing job-seekers and employers with better services. The need for a flexible collaboration gives rise to the issue of interoperability in both data exchange and share of services. SEEMP proposes a solution that relies on the concepts of services and semantics in order to provide a meaningful service-based communication among labour market actors requiring a minimal shared commitment

SEEMP: A marketplace for the Labour Market

Employment Services are an important topic in the agenda of local governments and in the EU due to their social implications, such as sustainability, workforce mobility, workers’ re-qualification paths, training for fresh graduates and students. Many administrations started their own E-Government projects whose imitations emerge as the demand of workers mobility increases. The SEEMP system presented in this paper overcomes this issue in different ways: starting bilateral communications with near-border similar offices, building a federation of the local employment services, and merging isolate trials. The SEEMP approach relies on a distributed semantic service oriented infrastructure able to federate local projects, in order to create geographically aggregated services for employment by leveraging existing local ones. The social and technical aspects of the SEEMP project are presented, showing how the SEEMP system is integrated with National level systems

Recent progress and perspectives of space electric propulsion systems based on smart nanomaterials

Miniaturized spacecraft built from advanced nanomaterials are poised for unmanned space exploration. In this review, the authors examine the integration of nanotechnology in electric propulsion systems and propose the concept of self-healing and adaptive thrusters