All articles - Information Science and Library Science

Subjects of the research: The diagnostics of data transmission systems’ (DTS) elements under operation terms, methods of the control of DTA (data transmission apparatus) and diagnostics of digital devises on the base of signature analysis.
Purpose of work: Investigation and development of effective control methods and diagnostic of data transmission systems’ elements.
.Method of research: On solving of given problems analytical and program methods of investigation have been used, including elaborated models and methodic with following processing and analyses of the received results. Analytical methods were based on probability theory, flow - chart theory, reliability theory, algebra logic theory, machine modeling theory.
The results obtained and their novelty: The cascade model of error source of discreet channel and the strategy of diagnostics and restoring the efficiency of DTS elements. The mathematic model of embedded control over DTS elements with and without self control and evaluation of volumes value and efficiency. Evaluation methodic of sample signatures reliability and calculation. The algorithms of despairs detection at signature analysis application, minimizing the time of search. An imitation model for evaluating the methods of compact testing and sample signatures shaping.
Practical value: The elaborated methodic, algorithms and programs are recommended for practical use at designing of control - diagnostic provision at the stage of operation of data transmission systems.
Degree of embed and economic cffcctivitv: The results of dissertation work have been adopted in AK «Uzbektelecom». The theoretical and practical results have been used at TU1T on «Telecommunications» specialty and 5A522205 - «Communication networks and control systems» specialty.
Field of application: The proposed methodic, algorithms and programs could be widely used at operation of data transmission systems, development of control - diagnostic supply of digital systems and devices of telecommunication equipment.

Subjects of research: the subject of research is technological processing and forwarding of registered postings.
Purpose of work: automation system development and package of application programs for system management software, record and control of registered postings on the basis of radio-frequency identification.
Methods of research: methods of complex tasks structural representation, functional-structural approach to the system design, methods of automated systems design, bar coding technologies and radio-frequency identification, programming methods and technologies.
The results obtained and their novelty: structurally-topological scheme and functional-structural scheme mathematical model of Automatic Control System of registered postings subsystems, choice procedure of defining parameters of identification technologies and techniques of a desirable technology for Automatic Control System of registered postings, algorithm approach to the optimization of RFID Automatic Control System of registered postings configuration subsystems, registered postings processing algorithms in offered automated system have been developed. The novelty of this research is constructive algorithms development of automation system via technological processing and forwarding of registered postings on the basis of radio-frequency identification.
Practical value: the real value of the work results is in proposed concept of radio-frequency identification technology implementation into Automatic Control System of registered postings, taking into consideration the specification of existing technological processes of Postal Service, developed algorithms and package of application programs for Automatic Control System of registered postings , which will be the basis at radio-frequency identification technology subsystems creation into Automatic Control System of registered postings. Economic efficiency estimation produced from postal service automation technology will be the cause for Automatic Control System deployment.
Degree of embed and economic effectivity: research results have been accepted for design work realization at "Halkaro pochtampt" branch of Open Stock Company "Uzbekistan Pochtasi" and expected annual saving rate is 234 mln 186500 sums.
Field of application: The results of research and development work can be used at "Postal Service" enterprises.