Integrated optical ring resonator for angular rate sensor. Main characteristics. Numerical modeling

В работе рассматриваются принципы организации датчика угловых скоростей (ДУС) на основе интегрально-оптического кольцевого резонатора, общие подходы к расчету его характеристик и результаты численного моделирования кольцевого резонатора.Main principles of angular rate sensor based on integrated-optical ring resonator is considered. General methods of calculation main characteristics and results of numerical modeling of IO ring resonator are described.Работа выполнена в рамках комплексного проекта «Разработка базовой технологии и создание производства фотонных интегральных схем для приборов, систем и комплексов оптоэлектронного навигационного приборостроения» выполняемой по договору № 02.G25.31.0113 от «14» августа 2014г. с Министерством образования и науки РФ

Improving the quality of people’s lives as a condition for sustainable development of the municipality of the Khimki city district administration

Currently, the quality of life of the population is determined by economic, social conditions, and the standard of living of people. In this regard, it is necessary to pay more attention to the development of the socio-economic sphere, the comprehensive introduction of new modern technologies that increase the level of comfort, quality of living, and accessibility of the environment. These and other factors largely determine its stability and stability. The integrated approach and experience of innovative development of the municipality of the Khimki city district administration can be used in many other regions of our country

Wormlike micelles in mixed amino acid surfactant/nonionic surfactant aqueous systems and the effect of added electrolytes

12 pages, 11 figures, 1 scheme.-- PMID: 19367080 [PubMed].The formation of viscoelastic wormlike micelles in mixed amino acid surfactant/nonionic surfactant aqueous systems in the presence of different counterions and salts is reported, and the effects of the different electrolytes on the rheological behavior are discussed. N-dodecanoylglutamic acid (LAD) is neutralized with biologically relevant L-lysine and L-arginine to obtain anionic surfactants (LAD-Lys2, LAD-Arg2) which form aqueous micellar solutions at 25 degrees C. Addition of a nonionic surfactant, tri-ethyleneglycol mono n-tetradecyl ether (C14EO3), to the aqueous solutions of both LAD-Lys2 and LAD-Arg2 causes the zero-shear viscosity (eta(0)) to increase with C14EO3 concentration gradually at first, and then sharply, indicating one-dimensional growth of the aggregates and eventual formation of entangled wormlike micelles. Further addition of C14EO3 ultimately leads to phase separation of liquid crystals. Such a phase separation, which limits the maximum attainable viscosity, takes place at lower C14EO3 concentrations for LAD-Lys2 compared to LAD-Arg2 systems. It was found that the rheological behavior of micellar solutions is significantly affected by the addition of Na+X(-) salts (X = Cl(-), Br(-), I(-), NO3(-)). The maximum viscosities obtained for the systems with added salt are all higher than that of the salt-free system, and the onset of wormlike micelle formation shift towards lower nonionic surfactant concentrations upon addition of electrolyte. The maximum attainable thickening effect of anions increases in the order NO3(-)>I(-)>Br(-)>Cl(-). The effect of temperature was also investigated. Phase separation takes place at certain temperature, which depends on the type of anion in the added salt, and decreases in the order I(-)>NO3(-)>Br(-) approximately equal Cl(-), in agreement with Hofmeister's series in terms of amphiphile solubility. The thermoresponsive rheological behavior was also found to be highly dependent on the type of anion, and anomalous trends, i.e. viscosity increase with temperature, were observed for all anions except Br(-).KA is thankfui to Ministry of Education, Culture, Sports, Science and Technology, Grant-in-Aid for Young Scientists (Bj, No. 18780094 and partly supported by Core Research for Evolution Science and Technology (CREST) of JST Corporation.Peer reviewe