Designing local network structure for distributed computer system of real time

The task of designing local network structure in distributed computer system of real time has been formulated. The method of problem solving is suggested. It includes construction operations of data transmission graph between network stations, conflict presence matrices at the access to the network backbones, diagrams of combining parallel data transmission. Method description is accompanied by explanations with the example

A solution to the problem of clustered objects compact partitioning

The urgency of the study consists in the fact that an object arrangement topology of a distributed system is often nonuniform. Objects can be placed at different distances from each other, thus forming clusters. That is why solving the problem of compact partitioning into sets containing thousands of objects requires the most effective way to a better use of natural structuring of objects that form clusters. The aim of the study is the development of methods of compact partitioning of sets of objects presented as clusters. The research methods are based on applied theories of sets, theory of compact sets and compact partitions, and linear programming methods with Boolean variables. As a result, the paper offers the method necessary to analyze composition and content of clusters. It also evaluates cluster compactness, which results in the decision to include clusters into the sets of partitions. It addresses the problem of optimizing the rearrangement of objects between compact sets that form clusters, which is based on the criteria of maximizing the total compactness of sets. The problem is formulated in the class of objectives of linear programming methods with Boolean variables. It introduces the example of object rearrangement

ДО ПИТАННЯ ОЦІНЮВАННЯ ТЕХНІЧНОГО СТАНУ ЗАЛІЗОБЕТОННИХ БАЛОК ПОКРИТТЯ ВИРОБНИЧИХ БУДІВЕЛЬ ЗА НЕСУЧОЮ ЗДАТНІСТЮ

Надані рекомендації щодо трактування та однозначності встановлення категорій технічного стану бетонних і залізобетонних конструкцій та їх елементів за несучою здатністю