With the rapid construction of long-distance oil and gas pipelines, big pipeline network was gradually formed in China and its surrounding areas, therefore the management of pipeline production becomes increasingly complicated and difficult. In this paper, we propose a data model for pipeline production to support the planning, scheduling, distribution, metering, energy consumption, process tec...

This paper presents a system developed at unicamp for automatically maintaining topological constraints in a geographic database. This system is based on extending to spatial data the notion of standard integrity maintenance through active databases. Topological relations, deened by the user, are transformed into spatial integrity constraints, which are stored in the database as production rule...

This paper presents a LabVIEW application for real time data acquisition for all components of a production system, respecting traceability requirements for a modern digital manufacturing environment. The paper focus on a supply chain which has several sub processes and then we focus on the limitations and problems and introduce a traceability system by combination of horizontal and vertical tr...

One of the most crucial aspects of Intelligent Tutoring Systems in a collaborative serious game is production rules. Given the large number of interactions and conversation between players, it is difficult to follow student questions and reactions in the game environment. Therefore, creating a sophisticated method to construct production rules for handle the students’ interactions will boost th...

Mixed cropping (including agroforestry) often gives yield advantages as opposed to monocropping. Many criteria have been used to assess yield advantage in crop mixtures. Some of these are presented. In addition, the relative merits of replacement, additive and bivariate factorial designs are discussed. The concepts of analysis of mixed cropping are applied to an example of an alley cropping (a ...