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Browsing Articole din publicaţii internaţionale by Author "ALEXEI, A. S."

Browsing Articole din publicaţii internaţionale by Author "ALEXEI, A. S."

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  • About failure in multi service networks 
    TSURCANU, D. N.; NISTIRIUK, P. P.; ANDRONIC, S. M.; ALEXEI, A. S.; FINCIUK, S. I.; NISTIRIUK, P. V. (IEEE, 2011)
    Based on a framework of semi-Markov processes and a method of phase consolidation the model of failure-free multi service networks (MSN) was designed.
  • Acoustic-electronic cryotron of high velocity 
    NISTIRIUK, P. V.; TSURCANU, D. N.; BEREGOI, E. A.; ALEXEI, A. S.; BIRZOI, O. S.; KORNEA, K. I. (IEEE, 2004)
    An acoustic-electronic cryotron of high velocity based upon YBa/sub 2/Cu/sub 3/O/sub 7/ superconductor operated by acoustic surface wave (ASW) provides for automatic switchover time period with a fixed step contemporaneously ...
  • Adjustable magnetorheologic gradient lenses 
    NISTIRIUC, P. V.; TURCAN, D. N.; ALEXEI, A. S.; NISTIRIUC, I. V.; BEREGOI, E. A.; SAJIN, M. K.; SCUTARI, G. (IEEE, 2000)
    Elaboration results of adjustable magnetorheologic gradient lenses based on Y/sub 3/Fe/sub 5/O/sub 12/ powder are presented. Magnetorheologic lenses permit to change its focus radius by means of magnetic field.
  • Application of external synchronization for increasing noise stability in homodyne reception of optical signals 
    TSURCANU, D. N.; TSURCANU, T. P.; NISTIRIUK, A. P.; ANDRONIC, S. M.; CHIHAI, A. G.; NISTIRIUK, P. P.; BAXAN, L. V.; NISTIRIUK, P. V.; ALEXEI, A. S. (IEEE, 2012)
    In the infrared range of wavelengths λ = 1 ... 6 microns the use of an external injection synchronization based on the cylindrical lens (CL) with tunable parameters, to improve noise stability in homodyne reception of ...
  • Convolver on multileading-out acoustic-electronic cryotron 
    NISTIIUK, Pv.; TSURKAN, D. N.; ALEXEI, A. S.; BEREGOI, E. A.; BIRZOI, O. (IEEE, 2001)
    The results of a convolver on tunable acoustic-electronic cryotron elaboration are presented. The performances and parameters of a convolver depend on the frequency surface acoustic waves (SAW), amount and configurations ...
  • Diagnosing of elements in NGN communication networks 
    TSURCANU, D. N.; NISTIRIUK, P. V.; ALEXEI, A. S.; BEREGOI, E. A.; TSURCAN, A. G.; TSURCANU, T. P.; FINCIUK, S. I.; LUKIN, T. T. (IEEE, 2008)
    Proposed in this paper is the algorithm for elements minimizing in NGN communication networks.
  • Ensuring of reliability of discrete information reception in coherent FOTSI [fiber optic transmission systems] 
    NISTIRIUK, P. V.; TSURKAN, D. N.; BEREGOI, E. A.; ALEXEI, A. S.; BIRZOI, O. S.; KORNEA, C. I. (IEEE, 2002)
    Described in this paper are different reception homodyne schemes for coherent FOTSI interference immunity increase. Coherent FOTSI immunity depends on the optical oscillator shot noise and laser phase noise, stipulated by ...
  • Estimation of technical and economic efficiency of modern cable transmission systems 
    NISTIRIUK, P. V.; TSURKAN, D. N.; ALEXEI, A. S.; GUJUMAN, L. M.; SAVA, L. I.; BEREGOI, E. A.; BIRZOI, O. (IEEE, 2001)
    The present paper concerns the estimation of the cost of transmitting one kbps of information between two serviced intensifying or regeneration points (SIP or SRP). Different methods of signal multiplexing are taken into ...
  • Evaluation of Bit Error Rate probability for radio communications and fiber-optic communication systems 
    TSURCANU, D. N.; NISTIRIUK, A. P.; CHIHAI, A. G.; NISTIRIUK, P. P.; BAXAN, L. V.; ANDRONIC, S. M.; NISTIRIUK, P. V.; RUSSU, G. V.; ALEXEI, A. S.; IAZLOVETKII, M. L.; TSURCANU, T. P. (IEEE, 2014)
    The present paper concerns the estimation of BER parameter (Bit Error Rate) for radio systems and FOCS (fiber-optic communication systems), taking into consideration what is known the relationship signal/noise SNR ...
  • Inhibition of physical jitter in optical communication systems 
    TSURCANU, D. N.; NISTIRIUK, P. V.; ALEXEI, A. S.; ANDRONIC, S. M.; SMOKIN, D. I.; FINCIUK, S. I.; TSURCAN, A. G.; TSURCANU, T. P. (IEEE, 2009)
    The method for improving quality of service QoS (Quality of Service) in optical communication systems through the suppression of physical jitter using a cylindrical lens and reducing of the value BER (bit error rate) is proposed.
  • Magnetostrictive fiber-optic transducer 
    NISTIRIUK, P. V.; TSURCANU, D. N.; BEREGOI, E. A.; ALEXEI, A. S.; NISTIRIUK, S. I. (IEEE, 2005)
    Presented in this paper are the results of design of fiber-optical gauge, using sectioned bimagnetostrictive coating applied on fiber. Its core consists of magnetic and rheological liquid on the basis of yttrium iron garnet ...
  • MPLS Network Hardware Reliability 
    TSURCANU, D. N.; NISTIRIUK, P. V.; ALEXEI, A. S.; TSURCAN, A. G.; BEREGOI, E. A.; TSURCANU, T. P.; SMOKIN, D. (IEEE, 2007)
    In order to analyze MPLS (multiprotocol label switching) network hardware reliability, the method of semi-Markov systems phase enlargement is used.
  • Some aspects of the analysis of functioning NGN network based on semi-Markov processes 
    TSURCANU, D. N.; NISTIRIUK, P. P.; ALEXEI, A. S.; ANDRONIC, S. M.; FINCIUK, S. I.; NISTIRIUK, P. V. (IEEE, 2010)
    The present paper concerns the application of semi-Markov processes to analyze the operation of NGN networks (Next Generation Network).
  • Tunable acoustic-electronic cryotron 
    NISTIRIUC, P. V.; TURCAN, D. N.; ALEXEI, A. S.; NISTIRIUC, S. I.; BEREGOI, E. A.; SAJIN, M. I.; SCUTARI, G. (IEEE, 2000)
    Results of YBa/sub 2/Cu/sub 3/O/sub 7/ tunable acoustic-electronic cryotron elaboration are presented. The specific switching time depends on surface acoustic wave (SAW) frequency, number of contacts and their configuration.
  • Use of the Semi-Markov Apparatus to Analyse MPLS Networks 
    TSURCANU, D. N.; ALEXEI, A. S.; NISTIRIUK, P. V.; BEREGOI, E. A.; BIRZOI, O. S. (IEEE, 2006)
    Development of the method of analysis of MPLS (multiprotocol label switching) networks on the basis of the semi-Markov apparatus in respect to guaranteed QoS (quality of service) real time traffic servicing quality is presented.

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