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Most of transformer substations had installed all kinds of online monitoring systems of electric equipment, these systems were usually independency and redundancy, so they can not share computer resources each other, and it is not in favor of examining insulation states. A Support System for High Voltage Electric Equipment Condition-based Maintenance of Transformer Substation based on whole transformer...
At present, many transformer substations had installed all kinds of management information system, these systems were usually independency and redundancy, so they can not share computer resources each other. A support system was developed, which based on the .NET framework. This system can help to manage all kinds of data by using the computer database at a same system, so the data can be shared and...
Expressive power has been a well-established as a dimension of measuring the quality of a computer language. Easiness is another dimension. It is the main stream of development in programming language and database management. However, there has not been a method to precisely measure the easiness of a computer language. This article discusses easiness. Provided that a data model be easier than a programming...
Corrosions of pipes had been disregarded as a subject of maintenance because corrosions in chemical plants progress slowly. However, many chemical plants were built over 30 years ago in Japan. There are many pipes whose outside surfaces is considerably corroded. Accidents which relate to corrosions may occur and lead to serious problems and vast losses. For this reason, the maintenance is greatly...
Traditional damage assessment approaches can only locate damage caused by reading corrupted data in a post-intrusion database. This paper indicates another kind of damage spreading pattern characterized by omitting maliciously deleted data, which was not considered in previous studies. An extended recovery model arms at this problem is presented and a novel approach based on the model is proposed...
With the complexity of new products and equipment increasing, assembly and testing manufacturing production line's environment becomes more and more complicated. Simulation method is one of the most effective ways to analyze and improve task scheduling. Database technology and modeling are the foremost factor in building a simulation system. This paper in detail describes an approach based on object-oriented...
The uncertain data objects in the MIS database structure design is a complicated issue and it's worth of discussing. In this paper, we observe the current existing solutions for the uncertain data objects and propose a new method that converts dynamic attributes modifications of the uncertain data objects to the records changing in a fixed-structure table. It effectively implements MIS database structure...
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