ASPICO: Advanced Scientific Portal for International Cooperation on Digital Cultural Conten

* This research is partially supported by a grant (bourse Lavoisier) from the French Ministry of Foreign Affairs (Ministère des Affaires Etrangères).In this paper, we present the development of an advanced open source multi-lingual cooperative portal system (ASPICO) dedicated to semantic management, and to cooperative exchange for research and education purpose on digital cultural projects. Advantages of using ASPICO include greater flexibility for digital resource management, generic and systematic ontology-based metadata management, and better semantic access and delivery based on an innovative Information Modeling for Adaptive Management (IMAM)

Monitoring of Environmental Ionizing Radiation and Radioisotopes in Okayama City and the Vicinty (II) - An estimation of the external radiation from the environmental radiation dose -

Monitoring of environmental ionizing radiation and radioisotopes in Okayama city and the vicinity was carried out from the point of view of the external radiation from the environmental radiation dose. Although the fluctuation of monthly detected radiation dose throughout the year was rather low at each observation point, the mean value of dose equivalent was varied between the place of observation. From the observation of the distribution of environmental radiation dose in Okayama city, it was assumed that its distribution was well corresponded with the distribution of igneous rocks. The concentrations of radioisotopes in various kinds of rocks corrected in Okayama city and its vicinity were determined. It became apparent that high concentrations of radioisotopes, such as (134)Cs, (40)K, (226)Ra and (228)Th, were detected in igneous rocks, such as granite, gabbro and rhyolitic tuff, although the contents in sedimentary rocks, such as pelite, schist, psammite and limestone, were rather low. This result was in good agreement with that of the distribution of radiation dose in Okayama city

Continuous Data Management on Tape-Based Tertiary Storage Systems

. Video-on-Demand (VOD) servers are becoming feasible. These servers have voluminous data to store and manage. A tape-based tertiary storage system seems to be a reasonable solution to lowering the cost of storage and management of this continuous data. In this paper we address the issues of decomposing and placing continuous data blocks on tapes, and the scheduling of multiple requests for materializing objects from tapes to disks. We first study different policies for continuous object decomposition and blocks placement on tapes under different characteristics of the tertiary storage drives. Afterwards, we propose a scheduling algorithm for object materialization. 1 Introduction Most multimedia data is currently stored on magnetic hard disks, yet the proliferation of such applications is generating massive amounts of data such that a storage subsystem based solely on hard disks will be too expensive to support and manage. The video-on-demand (VOD) server is one particular multimedia..

High Assurance Communication Technique for Autonomous File Sharing Community

The headway towards the outstanding future can be realized with the productive cooperation among peoples and organizations. The productive cooperation has high demands for providing reliable and efficient information and function sharing. For achieving these requirements we propose an Autonomous community (AC) concept. AC is a group of autonomous members, in which each member has his own objectives, complies with the community obligations and has to be mutually cooperative with the others for achieving his own objectives. For achieving high reliable communication among community members we proposed a community communication technique based on one-to-many (1->N). This technique is characterized by by-productivity property. This property assures that not only the requester will receive the shared information but also the other members receive this information without sending the same request