01.06.17 Завершен телефонный опрос по теме " Возможности отсроченного старения пожилых в С-Петербурге". Квотная выборка 800 респондентов, жителей Санкт-Петербурга. Приступили к обработке данных.

31.05.17 Завершен Интернет-опрос по теме "Состояние гражданского общества в Санкт-Петербурге"

Progress in Photon Science, Chapter 25, Pages 253-261

Yury Tver’yanovich, S. Fokina and E. Borisov

Super-Ionic Nano-Composite Solid Electrolytes Prepared by Laser Ablation

Progress in Photon Science, Chapter 25, Pages 253-261

DOI: 10.1007/978-3-319-52431-3_25

Using the laser ablation method, AgI stoichiometric compound films, (GeSe₂)₃₀(Sb₂Se₃)₃₀(AgI)₄₀ glass films, and films comprised of alternating layers of AgI and the glass were obtained. Individual layer thickness amounts to 10 nm, and the total number of layers is about 100. Film conductivity measurements were carried out during several cycles of heating up to 200 °C and cooling to room temperature. It was established that after three cycles of thermal processing specific lateral conductivity of the film is equal to 0.3 S cm⁻¹ and conductivity activation energy is equal to 0.07 eV at room temperature.

25.05.17 Начат телефонный опрос по теме " Возможности отсроченного старения пожилых в С-Петербурге". Квотная выборка примерно 800 респондентов, жителей Санкт-Петербурга. Научный руководитель проекта Ирина Андреевна Григорьева, доктор социологических наук, профессор кафедры теории и практики социальной работы. Задача телефонного опроса - получить достоверные статистические данные о том, что думают сами пожилые жители С-Петербурга о возможностях «отсроченного старения» или «активного долголетия».

REVIEWS  ON  ADVANCED  MATERIALS   SCIENCE Volume 50, No. 1, Pages 13-23

I.Yu. Archakov, V.U. Kazykhanov, V.G. Konakov, O.Yu. Kurapova, A.E. Medvedev, M.Yu. Murashkin, N.N. Novik, I. A. Ovidko, E. N. Solovyeva and R.Z. Valiev

MICROSTRUCTURE AND MECHANICAL CHARACTERISTICS OF NANOSTRUCTURED NICKEL-GRAPHENE COMPOSITES PROCESSED BY HIGH PRESSURE TORSION

REVIEWS  ON  ADVANCED  MATERIALS   SCIENCE Volume 50, No. 1, Pages 13-23

This paper presents data on fabrication of “nickel-graphene-graphite” bulk composites using powder metallurgy methods combined with the high energy ball milling. The composites were then processed by high pressure torsion (HPT) at temperatures of 23 and 200 °C. This treatment gives rise to the formation of new “nanostructured nickel-graphene” composites. The phase composition of the new composite specimens was examined by X-ray diffraction. Raman spectroscopy proved graphite-to-graphene conversion under mechanical treatments. The microstructure of the new composite specimens was investigated by scanning electron and transmission electron microscopy methods. Composite specimens after HPT at temperature of 200 °C demonstrate the optimal combination of strength (σ₀₂= 923 MPa; σ_b= 992 MPa) and ductility (δ = 99%). Composite specimens with 2 wt.% graphene content after HPT at room temperature exhibits superior microhardness H_v = 6.45 GPa.