A unified model of the electrical power network

Traditionally, the different infrastructure layers, technologies and management activities associated with the design, control and protection operation of the Electrical Power Systems have been supported by numerous independent models of the real world network. As a result of increasing competition in this sector, however, the integration of technologies in the network and the coordination of complex management processes have become of vital importance for all electrical power companies. The aim of the research outlined in this paper is to develop a single network model which will unify the generation, transmission and distribution infrastructure layers and the various alternative implementation technologies. This 'unified model' approach can support ,for example, network fault, reliability and performance analysis. This paper introduces the basic network structures, describes an object-oriented modelling approach and outlines possible applications of the unified model

Software engineering and middleware: a roadmap (Invited talk)

The construction of a large class of distributed systems can be simplified by leveraging middleware, which is layered between network operating systems and application components. Middleware resolves heterogeneity and facilitates communication and coordination of distributed components. Existing middleware products enable software engineers to build systems that are distributed across a local-area network. State-of-the-art middleware research aims to push this boundary towards Internet-scale distribution, adaptive and reconfigurable middleware and middleware for dependable and wireless systems. The challenge for software engineering research is to devise notations, techniques, methods and tools for distributed system construction that systematically build and exploit the capabilities that middleware deliver

Development Of Planning Support System For Urban Rehabilitation And Reconstruction In Case Sidoarjo Mud Flow Post Disaster

Sidoarjo mud disaster impact that has lasted more than 3 years are very influential on other aspects of life in Porong and surrounding areas. The need for information systems that can inform the public about the catastrophic conditions is absolutely necessary. In previous research has established a disaster management information system that is treated with the approach to Geographic Information Systems (GIS) consisting of the phases of mitigation, evacuation and warning his own. Mitigation system that was built covering the field of catastrophe risk modeling using network analysis, mapping mudguard embankment area, information about alternative routes and other public facilities information. Evacuation system provides information on areas that can be used as an evacuation site if a disaster occurs, such as health centers and referral hospitals and information about the stages of evacuation if the disaster occurs. Early warning system that allows agencies related to the Sidoarjo Mud Mitigation Agency (BPLS) provide information directly via WEB and SMS that can be accessed by the public via the WEB and SMS. Mitigation system that was built covering the field of catastrophe risk modeling using network analysis, mapping mudguard embankment area, information about alternative routes and other public facilities information. Evacuation system provides information on areas that can be used as an evacuation site if a disaster occurs, such as health centers and referral hospitals and information about the stages of evacuation if the disaster occurs. Early warning system that allows agencies related to the Sidoarjo Mud Mitigation Agency (BPLS) provide information directly via WEB and SMS that can be accessed by the public via the WEB and SMS. Mitigation system that was built covering the field of catastrophe risk modeling using network analysis, mapping mudguard embankment area, information about alternative routes and other public facilities information. Evacuation system provides information on areas that can be used as an evacuation site if a disaster occurs, such as health centers and referral hospitals and information about the stages of evacuation if the disaster occurs. Early warning system that allows agencies related to the Sidoarjo Mud Mitigation Agency (BPLS) provide information directly via WEB and SMS that can be accessed by the public via the WEB and SMS. The next stage is the stage of recovery. To that end, the research platform designed with integrated GIS Decision Systems (DSS) for regional development planning. Platform that includes a planned relocation of the transportation system and the relocation industry. Relocation of industrial zones by the method of analytical hierarchy process to produce recommendations relocate industrial park. Modeling facility relocation alternative transport route network transformation results

An introduction to Graph Data Management

A graph database is a database where the data structures for the schema and/or instances are modeled as a (labeled)(directed) graph or generalizations of it, and where querying is expressed by graph-oriented operations and type constructors. In this article we present the basic notions of graph databases, give an historical overview of its main development, and study the main current systems that implement them

Smart Geographic object: Toward a new understanding of GIS Technology in Ubiquitous Computing

One of the fundamental aspects of ubiquitous computing is the instrumentation of the real world by smart devices. This instrumentation constitutes an opportunity to rethink the interactions between human beings and their environment on the one hand, and between the components of this environment on the other. In this paper we discuss what this understanding of ubiquitous computing can bring to geographic science and particularly to GIS technology. Our main idea is the instrumentation of the geographic environment through the instrumentation of geographic objects composing it. And then investigate how this instrumentation can meet the current limitations of GIS technology, and offers a new stage of rapprochement between the earth and its abstraction. As result, the current research work proposes a new concept we named Smart Geographic Object SGO. The latter is a convergence point between the smart objects and geographic objects, two concepts appertaining respectively to

Object-oriented querying of existing relational databases

In this paper, we present algorithms which allow an object-oriented querying of existing relational databases. Our goal is to provide an improved query interface for relational systems with better query facilities than SQL. This seems to be very important since, in real world applications, relational systems are most commonly used and their dominance will remain in the near future. To overcome the drawbacks of relational systems, especially the poor query facilities of SQL, we propose a schema transformation and a query translation algorithm. The schema transformation algorithm uses additional semantic information to enhance the relational schema and transform it into a corresponding object-oriented schema. If the additional semantic information can be deducted from an underlying entity-relationship design schema, the schema transformation may be done fully automatically. To query the created object-oriented schema, we use the Structured Object Query Language (SOQL) which provides declarative query facilities on objects. SOQL queries using the created object-oriented schema are much shorter, easier to write and understand and more intuitive than corresponding S Q L queries leading to an enhanced usability and an improved querying of the database. The query translation algorithm automatically translates SOQL queries into equivalent SQL queries for the original relational schema