Magnetic properties and fine structure of amorphous Fe–Ni–Si–B alloys

The magnetic properties and Mossbauer spectra of amorphous 2NSR alloy samples are investigated after quenching and after tempering for different times at 520°C. After quenching, the alloy is inhomogeneous. Tempering of alloy samples below the crystallization temperature (540°C) raises the Curie temperature and the mean superfine field at the iron nuclei. Tempering leads to complex changes in the saturation magnetization. The changes in magnetic properties are analyzed.     

Effect of the nanocrystallization of a soft magnetic amorphous Fe–P–Mo alloy on its corrosion resistance in a damp industrial SO<Subscript>2</Subscript>-contaminated atmosphere

The study of the electrochemical behavior of a soft magnetic amorphous Fe–P–Mo alloy in a 0.1M Na₂SO₄ solution, which simulates a damp SO₂-contaminated atmosphere, shows that the corrosion resistance of the nanocrystalline Fe_80.2P_17.1Mo_2.7 alloy is comparable to that of a FINEMET alloy. No molybdenum is required for manufacturing the Fe_80.2P_17.1Mo_2.7 alloy, because it can be prepared using natural alloy ferrophosphorus containing molybdenum.     

Selection of Substrate Material for Protein Arrays

Problems of multiplex test development for the detection of antibodies to a number of infectious agents in clinical blood samples using protein arrays are discussed. Experimental data on the evaluation of microstructure and adsorption properties of synthetic materials for protein chip substrate are presented. The synthetic paper Pentaprint PR-M480/09-07/8101-482D8 was recognized as the best of the studied materials for the production of protein arrays.     

Wave hydro massagers

Wave hydro massagers, differing from similar devices by vacuum pressing action on the human skin, are developed and experimentally examined. The vacuum level created in different operational conditions is 1–9 kPa. The maximum oscillation amplitude is observed in the frequency range 88–504 Hz depending on the circulation of the water supply and pressure at the inlet to the hydro massager being 0.2–0.6 MPa higher than atmosphere pressure. The area of application of these devices is therapeutic massage given both in clinical and home conditions.     

Effective thermal conductivity of disperse media at small peclet number

The steady heat conduction of disperse media consisting of identical spherical particles is calculated for small Peclet numbers characterizing the heat transfer at the level of the individual particles; heat transfer by contact conduction over the disperse phase is neglected.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 31, No. 4, pp. 607–612, October, 1976.     

Agroindustrial production sphere-radiological consequences of the Chernobyl accident and the chief protective measures

Translated from Atomnaya Énergiya, Vol. 65, No. 2, pp. 129–134, August, 1988.     

Current–Voltage Characteristics of the Initial Stage of Arc Discharge in a High-Voltage Vacuum Diode

Technical Physics Letters - The process of electron instability development and propagation of a cathode electron beam and anomalous ion beam, followed by outburst of current in the initial stage...     

Experimental Studies Into a Two-Cylinder Single-Stage Piston Hybrid Power Machine with Liquid Movement Produced by Vacuum on the Suction Side

Chemical and Petroleum Engineering - A novel two-cylinder single-stage piston hybrid power machine with liquid movement effectuated by vacuum on the suction side is described. The presented results...     

The Effect of Technological Factors on the Characteristics of Ohmic Contacts of the Power AlGaN/GaN/SiC-HEMT

Russian Microelectronics - The effect of the microrelief, dislocation structure, and other defects of epitaxial layers in the source and drain regions of a Nitride High Electron Mobility Transistor...     

Sensitivity of a superconducting nanowire detector for single ions at low energy

We report on the characterization of a superconducting nanowire detector for ions at low kinetic energies. We measure the absolute single-particle detection efficiency η and trace its increase with energy up to η = 100%. We discuss the influence of noble gas adsorbates on the cryogenic surface and analyze their relevance for the detection of slow massive particles. We apply a recent model for the hot-spot formation to the incidence of atomic ions at energies between 0.2 and 1 keV. We suggest how the differences observed for photons and atoms or molecules can be related to the surface condition of the detector and we propose that the restoration of proper surface conditions may open a new avenue for SSPD-based optical spectroscopy on molecules and nanoparticles.