0

analyzing spatial planning system in different countries could help make appropriate decisions to improve functional system of planning in our country. belgium, inspite of its limited area, has a unique planning system which is derived from political and social condition. belgium has a federal system which is composed of three cultural societies and three economic regions. spatial planning is i...

Besides being a distribution medium for up-to-date information, the Internet provides professional communities of users with an infrastructure for collaborative work. An important problem, however, is that groups working over the Internet often fail to accomplish their goals. In this paper our focus is on one category of professional communities, namely research networks. These are networks of ...

Although the basic idea of annotations is rather old most web material does not allow for annotations. Even if it does, annotations are usually little used. However, research shows that annotations are potentially an important part of digital libraries and particularly eLearning: they can help users to learn more easily by (collaboratively) adding comments, links and bookmarks, thus personalizi...

the wide availability of data on air pollutant emissions, the knowledge already achieved on theset of chemical and photochemical reactions in the troposphere, the ability to access real time weatherconditions at the local scale that determine the transport and transformation of gases and aerosol, now make it possible to obtain credible and reliable predictions, retrospective analyses and/or fut...