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Digital substations are essential components of the smart grids of the future. Advanced operation and control strategies should be implemented there by acting on data in a digital form. However, the data quality hugely depends on the input analog signals sourced from instrument transformers. Although considerable efforts have been made to improve their operation, many problems still remain unsolved...
Most of the works devoted to the study of measuring current and voltage transformers are focused on defining the characteristics of transformers in steady-state conditions to determine whether the transformers satisfy the metrological requirements. Such studies are often carried out using a chain of equivalent circuits or on the basis of field calculation methods. Field calculations methods definitely...
The possibility of applying the theory metacomputation to represent the business processes is considered. It is proposed to use methods metacomputation for analysis of business processes and their properties. The construction of the Business Process Configuration Tree from IDEF3diagram is described. An example of a convolution of the Business Process Configuration Tree into Configuration Graph is...
We consider two generalizations of group testing: threshold group testing (introduced by Damaschke [8]) and majority group testing (a further generalization, including threshold group testing and a model introduced by Lebedev [15]).
We consider a generalization of group testing, which gets together majority group testing and group testing with density tests. In contrast to the classical goal of group testing we want to find m defective elements of D defective elements. We examine four different test functions. We give adaptive strategies and lower bounds for the number of tests. We treat the cases if the number of defectives...
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