The Gaia satellite is a high-precision astrometry, photometry and spectroscopic ESA cornerstone mission, currently scheduled for launch in 2012. Its primary science drivers are the composition, formation and evolution of the Galaxy. Gaia will achieve its unprecedented accuracy requirements with detailed calibration and correction for CCD radiation damage and CCD geometric distortion. In this pa...

We believe that it is possible to put the whole work of Bourbaki into a computer. One of the objectives of the Gaia project concerns homological algebra (theory as well as algorithms); in a first step we want to implement all nine chapters of the book Algebra. But this requires a theory of sets (with axiom of choice, etc.) more powerful than what is provided by Ensembles; we have chosen the wor...

multi attribute decision making methods are considered as one of the most useful methods for solving ranking problems. in some decision making problems, while the alternatives for corresponding criteria are compared in a pairwise comparison manner, if the criteria are inherently fuzzy, debates will arise in ranking alternatives due to the closeness of the values of the criteria. in this researc...

Natural hazards bring significant influences on and socioeconomic loss to cities communities. Historic events show that fire following earthquake (FFE) is the most influential uncertain disturbance urban infrastructure system. Under FFE scenario, concept of resilience widely implemented make up shortcomings derived from traditional disaster management methodology. Resilient communities are requ...

The removal of nitrogen (N) and sulphur (S) from biocrude oil produced using hydrothermal liquefaction (HTL), is important for the production high quality renewable fuels. Here effect co-liquefaction bagasse algae was analysed. Algae (Chlorella vulgaris Cyanobacteria) were mixed with (1:1) subjected to HTL at 250–350 °C 10–60 min. Higher temperatures had a positive in increasing yield slightly ...

We report about a suprisingly good correlation between the equivalent width of the diffuse interstellar band (DIB) at 8620 Å and the interstellar reddening. Such a correlation offers bright prospects in using the 8620 Å DIB as a tracer of the extinction through the Galaxy in the context of the GAIA mission by ESA. The GAIA mission planned by ESA is aimed to provide astrometry in the 10 microarc...

In 1979, James Lovelock published a controversial book entitled Gaia: A New look at Life on Earth, which challenged the conventional wisdom about how the earth evolved. He hypothesized that living organisms form a self-regulating system, named after the Greek Goddess Gaia, which is directly responsible for creating and maintaining the earth's atmosphere. In other words, life did not simply evol...

Gaia is a well-known Agent Oriented Software Engineering (AOSE) methodology. The emerging Model-Driven Engineering (MDE) paradigm encourages software modelers to automate the transition of one type of software model to another and eventually the code generation process. Towards this end we define a process for transforming the Gaia roles model liveness formulas to statecharts. This achievement ...