Analysis of Reliability Mapping in Refining Industry: Identification of Critical Regions and Interventions in Complex Production Systems

PresentationThe article aims demonstrate the importance of reliability mapping for decrease risks of shutdown and accident in critical activities. For mapping is needed to know the operational context, considering culture and deviations that between with other factors will be occasion total failure. The analyses of sociotechnical reliability need of mapping of human, operational, process and equipment reliability to occur, besides considering the system complexity and the social attractiveness, for that this way be possible the elaboration of efficient barriers. The reliability mapping demands tools in the area of social and human risk analysis, analysis of the task with the evaluation of the environment of the activities, project of work, analysis of human factors, identification of work behaviour for cultural transformation, leadership style for process safety, culture of guilt and fair culture, dynamic risk management, energy reliability and good energy practices. The Socio Technical Reliability Analyses – STRA is a more complete tool for the analyse of systems and decrease of risks. With this mapping, it is possible to identify the industrial areas that have the greatest influence on the losses occurred in the industrial context, after that it is possible use the information for make an using fault tree analyses & decision diagram. That provides for the manager makes decisions with a solid knowledge base. The methodology aims through application of tool, demonstrate the use in analyses of parameters and construction of sociotechnical reliability mapping, identifying the tasks, equipment and process that cause shutdown. After reliability assessment, it continued with barriers analysis using fault tree analyses & decision diagram tool. The conclusion is about understand different cause considering STRA and demonstrate the decision-making processes importance to take corrective and preventive actions

Investigating the use of semantic technologies in spatial mapping applications

Semantic Web Technologies are ideally suited to build context-aware information retrieval applications. However, the geospatial aspect of context awareness presents unique challenges such as the semantic modelling of geographical references for efficient handling of spatial queries, the reconciliation of the heterogeneity at the semantic and geo-representation levels, maintaining the quality of service and scalability of communicating, and the efficient rendering of the spatial queries' results. In this paper, we describe the modelling decisions taken to solve these challenges by analysing our implementation of an intelligent planning and recommendation tool that provides location-aware advice for a specific application domain. This paper contributes to the methodology of integrating heterogeneous geo-referenced data into semantic knowledgebases, and also proposes mechanisms for efficient spatial interrogation of the semantic knowledgebase and optimising the rendering of the dynamically retrieved context-relevant information on a web frontend

Flattening an object algebra to provide performance

Algebraic transformation and optimization techniques have been the method of choice in relational query execution, but applying them in object-oriented (OO) DBMSs is difficult due to the complexity of OO query languages. This paper demonstrates that the problem can be simplified by mapping an OO data model to the binary relational model implemented by Monet, a state-of-the-art database kernel. We present a generic mapping scheme to flatten data models and study the case of straightforward OO model. We show how flattening enabled us to implement a query algebra, using only a very limited set of simple operations. The required primitives and query execution strategies are discussed, and their performance is evaluated on the 1-GByte TPC-D (Transaction-processing Performance Council's Benchmark D), showing that our divide-and-conquer approach yields excellent result

Adaptive Wireless Networking

This paper presents the Adaptive Wireless Networking (AWGN) project. The project aims to develop methods and technologies that can be used to design efficient adaptable and reconfigurable mobile terminals for future wireless communication systems. An overview of the activities in the project is given. Furthermore our vision on adaptivity in wireless communications and suggestions for future activities are presented