Estimation of influence of the metrology and diagnostic providing on technical service on the state communication means

The purpose of the article is to quantify the impact of the quality of metrological and diagnostic software on the formation of the sequence and limit the number of inspections during maintenance of complex electronic systems, including modern means of communication with digital information processing. As a result of the analysis of the existing system of maintenance the advantages of service of products on a condition are established. In this case, to determine the sequence of inspections do not fully take into account the properties of metrological and diagnostic software. Results of the research. In the article the quantitative estimation of influence of the metrology and diagnostic providing is first considered and got on the indexes of quality of technical maintenance of communication means. It is shown that most influence in a time of implementation of technical service and probability of determination here of the technical state render the diagnostic providing of works with the use of the modern metrology providing. It is also shown that on the value of indexes of quality of technical service preparation of specialists and technological equipment of repair organ influence substantially, abilities of performers in full to use possibilities of modern facilities of measuring technique. Conclusion. The got results it is expedient to draw on at the improvement of existing or creation of new instructions of technical service on the state perspective communication or other difficult wares of the radio electronic systems means.

Frequency-domain ultrafast passive logic: NOT and XNOR gates

Electronic Boolean logic gates, the foundation of current computation and digital information processing, are reaching final limits in processing power. The primary obstacle is energy consumption which becomes impractically large, > 0.1 fJ/bit per gate, for signal speeds just over several GHz. Unfortunately, current solutions offer either high-speed operation or low-energy consumption. We propose a design for Boolean logic that can achieve both simultaneously (high speed and low consumption), here demonstrated for NOT and XNOR gates. Our method works by passively modifying the phase relationships among the different frequencies of an input data signal to redistribute its energy into the desired logical output pattern. We experimentally demonstrate a passive NOT gate with an energy dissipation of ~1 fJ/bit at 640 Gb/s and use it as a building block for an XNOR gate. This approach is applicable to any system that can propagate coherent waves, such as electromagnetic, acoustic, plasmonic, mechanical, or quantum.

Card as a mediating technology of organization

Cards in all their varieties played a crucial role in pre-digital information processing and were only partially replaced at the start of the twenty-first century. Starting with Conrad Gessner’s early use of cards and catalogues as bibliographical compiling tools, this chapter takes a closer look at the distinguishing features of these allegedly antiquated information carriers, which functioned as handheld representatives, manageable paper-based proxies, or paper personae. Be it index cards, visiting cards, or even playing cards: they afford not only the organization of information, but also mobility, portability, flexibility, modularity, representativity, transitivity, manageability, updateability, legibility, and combinability.