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  1. No Access

    Article

    Potential Use of Heart Contractions as a Source of Energy for Implantable Devices

    We present an analysis of possible approaches to transforming heart contractions kinematics into electrical energy to supply implanted devices. Preclinical studies of cardiac kinematics were conducted. We conc...

    O. L. Bockeria, K. G. Potlovsky, M. A. Bazhin, L. A. Glushko… in Biomedical Engineering (2019)

  2. No Access

    Article

    Changes in the power of the low- and high-frequency bands of the heart rate variability spectrum in coronary heart disease patients with different severities of coronary atherosclerosis in the course of load tests

    The specific features of the changes in the low-frequency (LF) and high-frequency (HF) bands of the heart rate variability (HRV) spectrum were studied in coronary heart disease (CHD) patients with different numbe...

    A. R. Kiselev, V. I. Gridnev, O. M. Posnenkova, A. N. Strunina… in Human Physiology (2008)

  3. No Access

    Article

    Magnetic Ordering in 3He Nano-Clusters

    Simultaneous measurements of magnetic susceptibility from 0.5 to 10 mK and pressure from 2.88 to 3.54 MPa have been made in 3 He nano-clusters embedded in a 4

    V. A. Shvarts, K. J. Kless, N. Matsunaga, E. D. Adams… in Journal of Low Temperature Physics (2002)

  4. No Access

    Article

    Susceptibility and Pressure Study of 3He nano-Clusters

    Simultaneous measurements of pressure and magnetic susceptibility have been made in 3 He nano-clusters embedded in a 4 He matrix, following ph...

    N. Matsunaga, E. D. Adams, V. A. Shvarts, J. S. **a… in Journal of Low Temperature Physics (2000)

  5. No Access

    Article

    Evolution of the Concentrated Phase in Separated Solid 3He–4He Mixtures

    Experimental and theoretical investigations of the growth kinetics of BCC 3 He precipitates in isotopic phase separation of HCP 3 H...

    T. N. Antsygina, K. A. Chishko, N. P. Mikhin… in Journal of Low Temperature Physics (1998)

  6. No Access

    Article

    On the Possibility of Observing Third Sound on 3He

    This paper focuses on the hydrodynamics of third sound on a superfluid 3 He film. We solve the hydrodynamical equations in the limit of thick films with weak inter...

    M.E.W. Eggenkamp, V. A. Shvarts, R. Blaauwgeers… in Journal of Low Temperature Physics (1998)

  7. No Access

    Article

    Equilibrium phase diagram and kinetics of isotopical phase separation of 3%3He in HCP4He mixture

    The isotopical phase separation in a weak solid mixture of3He in4He is investigated by 250 kHz pulsed NMR under a pressure of 3.7 MPa in the temperature range 100 – 240 mK. The equilibrium concentrations of3 He i...

    Alexei M. Usenko, V. A. Shvarts, Nikolai P. Mikhin… in Journal of Low Temperature Physics (1995)

  8. No Access

    Article

    Nonstoichiometry of zirconia

    Phenomenological equations are suggested for describing the processes of disordering in electron and ion subsystems. Dependences of the concentration of point defects on the partial pressure of oxygen for each...

    Yu. N. Vilk, V. E. Shvaiko-Shvaikovskii, V. A. Shvarts in Refractories (1995)

  9. No Access

    Article

    Heat transfer and hydraulic resistance in axial flow of oil outside smooth and spirally finned tubes

    V. A. Shvarts, E. A. Kobtseva in Chemical and Petroleum Engineering (1971)