Circuit checking based on their metric properties

A test diagnostics method is proposed using partial duplication of a tested unit. Checking system is constructed on the basis of the metric properties of the relevant class of circuits. The proposed technique does not require the output data compression. The result of the test is obtained by comparison of the outputs of the tested circuit and the partially duplicated circuit. The approach ensures faster fault detection and simplifies the computational algorithm, thus reducing hardware costs. For combinatorial networks it produces an exact bound on checking reliability

Signature analysis of circuits with detection of single faults

A test system is considered in which the signature analyzer, i.e. the most frequently applied system of built-in testing, is used for compression of the output sequence of a tested device. A system of built-in testing of combinational circuits is suggested that uses a linear sequential machine for compression of the input and output sequence and allows to detect single faults of a circuit implemented in the form of a programmed logic matrix on the basis of perfect disjunctive normal form of the output functions

Test generator based on linear shift register

The paper deals with the design of test generator reproducing given test on the basis of shift register with linear feedback. The method of generator construction is based on the ordering of test totalities and on algorithms of synthesis of minimal linear shift register. The use of the generator is efficient for circuits designed by means of scanning path methods, as in this case the input register of testing circuit can be applied for generator construction. Besides, testing circuit can be considered as combinational. It enables to extend initial test set and to process the totalities in arbitrary order

How to help foster teens form a positive self-concept in sports and exercise activities

Purpose of the study: The purpose of the study is to develop and experimentally verify the psychological and pedagogical conditions for the formation of a positive self-concept for adolescents from a foster family as the foundation for their effective social adaptation and harmonious personal development. Methodology: Pedagogical experiment (stating, forming and control stages of the experiment) was chosen as the leading method of the study. It allowed to implement a set of developed psychological and pedagogical measures. The study featured 26 adolescents and 18 parents. Results: As part of the efforts invested, there was experimentally verified the effectiveness of the developed psychological and pedagogical conditions for the formation of a positive self-concept of adolescents from a foster family. There were also defined statistically significant positive changes in the indicators of self-concept components (cognitive, emotional-evaluative, and behavioural). Teenagers began to set more realistic goals, to adequately relate to their personal qualities, to their status among peers and in the family. There has been a positive tendency to accepting oneself as a holistic and consistent self-image, aligned with the ideal-self modality. Applications of this study: The results of the study can become an additional source for specifying modern theories of the formation of a positive self-concept, the developed programs can be used in the practice of social educators, educators-psychologists working with foster children. Novelty/Originality of this study: The development of a methodological basis and effective psychological and pedagogical measures to form a positive self-concept for adolescents brought up in foster families is the scientific novelty of the study

Ternary jitter-based true random number generator

© Published under licence by IOP Publishing Ltd.In this paper a novel family of generators producing true uniform random numbers in ternary logic is presented. The generator consists of a number of identical ternary logic combinational units connected into a ring. All the units are provided to have a random delay time, and this time is supposed to be distributed in accordance with an exponential distribution. All delays are supposed to be independent events. The theory of the generator is based on Erlang equations. The generator can be used for test production in various systems. Features of multidimensional random vectors, produced by the generator, are discussed

Ternary jitter-based true random number generator

© Published under licence by IOP Publishing Ltd.In this paper a novel family of generators producing true uniform random numbers in ternary logic is presented. The generator consists of a number of identical ternary logic combinational units connected into a ring. All the units are provided to have a random delay time, and this time is supposed to be distributed in accordance with an exponential distribution. All delays are supposed to be independent events. The theory of the generator is based on Erlang equations. The generator can be used for test production in various systems. Features of multidimensional random vectors, produced by the generator, are discussed

Asynchronous Linear Combinational Circuits as a Base for Programmable Logic Device. Binary and Ternary Cases

© 2016Programmable logic devices on base of asynchronous combinational circuits with feedback are considered. The main aim of the research is to obtain a method for designing a circuit with a set of prescribed stable states or a circuit without stable states — a generator of true random numbers. Both the cases of binary and ternary logics are studied