University of Information Technologies

Saint Petersburg, Russia

University of Information Technologies

Saint Petersburg, Russia
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Bulat P.V.,University of Information Technologies | Chernyshev M.V.,Saint Petersburg State Polytechnic University
International Journal of Environmental and Science Education | Year: 2016

The aim of the research is to create the classification for shock wave triple configurations and their existence regions of various types: type 1, type 2, type 3. Analytical solutions for limit Mach numbers and passing shock intensity that define existence region of every type of triple configuration have been acquired. The ratios that conjugate intensities of three shock in triple configuration and flow turn angle on them are presented. The transition (boundary) shock wave triple configurations have been reviewed. The acquired results can be used to design shock wave structures with set properties in detonation engines, air collectors, technological plants, when analyzing shock wave influence on objects during an explosion. Triple configurations of type 1 are used in internal compression air intakes that are based on interaction of oncoming shocks. Triple configurations of type 2 can be found in supersonic gas jets, at Mach reflection of shock and detonative waves from solid walls. Triple configurations of type 3 are used in supersonics multishock air intakes of external or mixed compression. © 2016 Bulat and Chernyshev.


Sikdar D.,Monash University | Rukhlenko I.D.,Monash University | Rukhlenko I.D.,University of Information Technologies | Cheng W.,Monash University | And 2 more authors.
Plasmonics | Year: 2014

Using the image charge theory and finite element methods, we present the first comprehensive study on the optical properties of substrate-supported, three-layer, metal/dielectric/metal nanospheres. By adopting dipolar and quadrupolar approximations of the quasistatic image charge theory, we derive analytical expressions for the polarization-dependent polarizabilities of a three-layer nanosphere near a substrate and use them to find the nanosphere's plasmon resonance wavelengths as functions of the geometric and material parameters of the nanosphere-substrate system. By calculating the resonance wavelength of substrate-supported gold/silica/gold nanosphere over a sufficiently large domain of the nanosphere's dimensions, we show that this wavelength can be tuned from visible to infrared regions by altering only the size of the nanosphere's core. We also show that the resonance position as well as the enhancement and confinement of the near-field can be dynamically tuned over broad ranges by changing the polarization of the excitation light. Of significance for the applicability of our results in practice is that we employ size-dependent permittivity of gold, which allows experimentalists to readily produce these substrate-supported nanospheres with desired optical responses. Upon comparing our analytical results with the results of numerical simulations, we reveal the range of the nanospheres' outer radii within which the dipolar and quadrupolar approximations adequately describe the nanosphere-substrate interaction. Since majority of the optical functions are realized with light polarized parallel to the substrate, our results allow one to readily engineer the broadband optical responses of substrate-supported metal/dielectric/metal nanospheres for applications in resonance-enhanced sensing, in light harvesting, and in biomedicine. © 2014 Springer Science+Business Media New York.


Rupasinghe C.,Monash University | Rukhlenko I.D.,Monash University | Rukhlenko I.D.,University of Information Technologies | Premaratne M.,Monash University
ACS Nano | Year: 2014

Spaser is a nanoscale source of surface plasmons comprising a plasmonic resonator and gain medium to replenish energy losses. Here we propose a carbon-based spaser design in which a graphene nanoflake (GNF) resonator is coupled to a carbon nanotube (CNT) gain element. We theoretically demonstrate that the optically excited CNT can nonradiatively transfer its energy to the localized plasmon modes of the GNF because of the near-field interaction between the modes and the CNT excitons. By calculating the localized fields of the plasmon modes and the matrix elements of the plasmon-exciton interaction, we find the optimal geometric and material parameters of the spaser that yield the highest plasmon generation rate. The results obtained may prove useful in designing robust and ultracompact coherent sources of surface plasmons for plasmonic nanocircuits. © 2014 American Chemical Society.


Ivanov V.S.,University of Turku | Rozhdestvensky Y.V.,University of Information Technologies | Suominen K.-A.,University of Turku
Physical Review A - Atomic, Molecular, and Optical Physics | Year: 2014

We present a scheme for high-precision three-dimensional (3D) localization by the measurement of the atomic-level population. The scheme is applied to a four-level tripod-type atom coupled by three strong standing waves and a probe running wave. As a result, the atom can be localized in volumes that are substantially smaller than a cubic optical wavelength, which is achieved by the increase of standing-wave intensities. The upper-level distribution depends crucially on the atom-field coupling and it forms 3D periodic structures composed of spheres, hourglasses, bowls, donuts, or deformed barrels. © 2014 American Physical Society.


NEW YORK, NY, December 02, 2016-- Dr. Boris Farber, Chief Executive Officer of Farber's Center for Academic Success, Inc.; Noigel LLC; has been recognized as a VIP Member by Marquis Who's Who for showing dedication, achievements, leadership abilities, excellence, and credentials in his career.Marquis Who's Who honors outstanding executives and professionals in all fields including Law, Healthcare, Finance, Technology, Design, and Engineering, and is proud to endorse the notable professional efforts and accomplishments of Dr. Boris Farber. This year, his companies celebrate 40 years of a unique proprietary Patenting Teaching Object Oriented Method, based on Patterns and Images; 35 years of Strategy Rational Self-Adjusted Bioengineering Design; and 15 years of Molecular Self-Adjusted Robots Design in Bio and Nanotechnology.Dr. Boris Farber was named a Professional of the Year this year by Worldwide Branding for his impact and contributions to the field of Education, and R&D in Applied Mathematics, Bioengineering, Bio and Nanotechnologies.After attaining a strong background and receiving a Postdoctoral Degree in Bioengineering and Applied Mathematics at the Central Research Institute of Prosthetics and Orthotics, Dr. Boris Farber received a Ph.D. in Robotics at the University of Information Technologies, Radio Engineering and Electronics (Moscow, 1987) as well as a Ph.D. in Biomedical Engineering at the Central Research Institute of Prosthetics and Orthotics (Moscow, 1987). He received his Dr.Sci. Degree (a 'higher doctorate' awarded in recognition of a substantial and sustained contribution to scientific knowledge) in Bioengineering and Management of Biological and Medical Systems at Peter the Great Polytechnic University (St. Petersburg, 1992). Dr. Farber then received a Professor Diploma in Biomechanics (Moscow, 1994).Dr. Farber obtained a strong background in Electronics and Semiconductors in 1971 (College of Electronic Devices), Mechanical Engineering in 1976 (SAHTUniversity), Applied Mathematics, 1979 (Moscow State University), Applied Mathematics in 1988 (Institute of Radio Electronics and Automatics), Advanced Programming, 1996, 2001, (Institute of Programming), and Applied Homotoxicology, 2010 (Academy of Homotoxicology), a Patent Attorney (Academy of Intellectual Property, 1981).Dr. Farber worked as a Scientist, Chair of Department of Artificial Limbs and as a Director of Science at the Central Research Institute of Prosthetics, the largest research institute of prosthetics in the world, from 1981-1995. The first myoelectric prosthesis hand in the world was created at the Institute, the license for this invention was sold to main developed countries, and the Institute received the Order of the Red Banner, one of the highest rewards from the government. He has been the founder and CEO of a few corporations: InvaPomosh, Inc., 1989; Technological Industry of Prosthetics and Orthotics, Inc., 1990; Ortho-Cosmos Inc., 1991; Ecolotex, Inc., 1993; Patterns Image Corporation Inc., 2003; Farber's Center for Academic Success, Inc., 2005; American Medical Technologies Inc., 2005; and Noigel LLC 2010.He has been the founder and editor-in-chief of the journal "Biomechanics and Prosthetics", editor of the journal "Prosthetics and Orthotics", editor of the journal "Annals of Mechnikov Institute;" Vice President of the Russian Biomechanical Society; Vice Coordinator of a Branch of Russian Prosthetics and Orthotics Industry- a network that includes many institutes, plants and factories. He has created the industry's first Doctors' and Ph.D's Thesis committee in "Biomechanics" and was Deputy Chairman of the Board of doctoral theses. He has made hundreds of presentations and publications at International Congresses in the USA, Australia, Belgium, Bulgaria, Canada, China, England, France, Germany, Greece, Holland, Italy, Japan, Russia, Scotland, Sweden, Turkey, United Arab Emirates, Ukraine and Yugoslavia.Dr. Farber has been working in the overlapping of many branches of knowledge, implementing a broad vision of a system. He is the author of fundamental works in bioengineering and biotechnology, mathematical modeling, prosthetics, orthotics, biomechanics, bionics, movement control, kinesiology, electro-stimulation, scoliosis, myoelectric control, ergonomics, rocket-space industry, technologies for post-stroke and post-heart attack treatments, artificial intelligence in expert systems, cancer and atherosclerosis diagnostics, pharmacological biotechnology and nanotechnology, and many more.His research and inventions are based on a strong scientific-mathematical foundation. For instance, he created a set of advanced mathematical models: a mathematical model of anthropomorphic robots for optimization for patients with artificial limbs, based on a system of Lagrangian differential equations; mathematical models of human gait, based on Kelvin-Voigt rheological elements and systems of differential equations; mathematical models for the analysis and synthesis of spatial mechanisms; discrete mathematics models for synthesis elements of anthropomorphic systems; mathematical model for Pacinian vibro-receptors; blood cell morphometric method lymphocyte regression model for cancer diagnostics; combinatorial mathematical model for optimization self-organization and adaptation of molecular robots, etc.Based on this strong, diverse foundation, TRIZ (the theory of inventive problem solving), the laws of system evolution, system vision, and an international patent law education, he is credited with more than 1,000 inventions, scientific articles and books in the aforementioned areas. His four books titled "Theoretical Aspects of Motion Control and Electro-stimulation" became bestsellers for professionals in this domain. He has participated in designing a unique software: Expert Systems for Biomechanical Measurement and Prosthetics and Orthotics Prescription, based on Artificial Intelligence; Interactive Anthropomorphic Models with Kelvin-Voigtviscoelastic elements; and Problem Formulator and Directed Evolution for inventive problem-solving for medical technologies. His pioneer magnetorheological fluid appliances are implemented in a new generation of computer control prosthetics and muscle training machine based on myoelectric control. His inventions attained 6 gold and 1 silver awards during the World Exhibition of Inventions in Brussels and have been produced in the space-rocket industry to date. The inventions have helped hundreds of thousands of patients in rehabilitation and improved their lifestyle. Some of his inventions have been used not only on Earth for patient rehabilitation after strokes, but also in space for spacemen in spaceships as well as for the orbital space station.He has been developing self-adjusted and self-organized dynamical systems in many areas of his research starting from 1971 in Semiconductors, dynamic layered system in 1973, dynamic multiaxial vehicles in 1974. He created the first in the world group of self-adjusted dynamical mechanisms for Bioengineering in 1979; self adjusted dynamical rheological elements based on magnetic liquid for prosthetics and for training devices in 1983. Starting from 1984, he published development forecasts for Prosthetics and Orthotics based on The Laws of System Evolution, which was used for creating a line of pioneer prosthetics and orthotics design. Being the Director of Science at the Central Research Institute of Prosthetics, after discussing a long term program with Genrich Altshuller, he made the next logical step when he applied this approach of self-adjusted and self-organized dynamical system for development different aspects in the medical field, since 1989.He and his associates started research in self-adjusted and self-organized dynamical drugs in 1995. As a result, a new large group was discovered- quasi-living, self-adjusted, self-organizing dynamic medicinal and diagnostic medicines, which represents a revolutionary jump from medicines' static to dynamic drugs with variable structure and synergy. These drugs system have the ability to adjust to the body of each individual, to adapt to its system of receptors. Accordingly, the effectiveness of such drugs is increasing, and the action spectrum extends substantially. The implementation of this approach shows great results. For instance: a dynamic antiviral veterinary drug is produced and shows wide action spectrum and efficacy; hemostatic "Gemma" successfully applied in practice battlefield and saved lives of hundreds of people; and the newly developed quasi-living dry implant can radically change the catheterization practice in surgery. His group continues to research dynamic anti-cancer drug, synergistic quasi-living antibiotics, antiatherosclerotic drugs, antihypertensive drugs, medicines for Alzheimer's disease treatment, for multiple sclerosis and diabetes, pain killer medications, cosmetology, cancer and atherosclerosis diagnostics.In addition to scientific and medical discoveries, Dr. Farber devoted himself to creating a new approach in education based on a strong scientific-mathematical foundation: a unique proprietary Patenting Teaching Object Oriented Method, based on patterns and images; a unified physics education system and decision algorithms for solving logic problems. Students, who took his classes and digested these methods, improved their analytical-thinking skills. He has trained 37 PhDs and Dr. Sci in Biomedical Sciences and thousands of students worldwide in math and science. Many of his former students work for his companies as well as all over the world as scientists, heads of labs, heads of departments, have their own companies and work in the industry using advanced methods and algorithm of thinking.The year 2016 is very special, as it marks the 40th anniversary of Dr. Farber and his colleagues' creation of a unique method of teaching. This year also marks 30 years of implementing rational, self-adjusted bioengineering design and 15 years of molecular self-adjusted robot design. Dr. Farber became a corresponding member of Rocket-Space Academy 1994; Full Member-Academician of Academy of Medical Technical Sciences 1994; member of Professional Societies: International Society for Prosthetics and Orthotics 1995; International Society of Biomechanics 1995; New York Academy of Science 2016; Member of Mathematical Societies: American, Australian, European, Singapore, Canadian, German, London and Edinburgh.He was named an Honorary Recipient of the "Honored Inventor of Russian Federation" in 1993, the highest prize that may be issued to inventors by the Russian government. He was nominated as Professor of the Year (New York, 2010); Scientist of the Year (New York, 2011); Member of The Top Executive Club, 2016;VIP Person, 2016; Professional of the Year: by Marquis Who's Who, Worldwide Branding, Continental and Global Directory of Who's Who for his impact and contributions to the field of Education(Object-Oriented Patterns and Images Method), and R&D in: Applied Mathematics, Bioengineering, Bio- and Nano-Technologies; dynamic drug design based on quasi-living, self-organizing dynamic medicinal and diagnostic medicines with variable structure and synergy.His biography is included in Marquis Who's Who, Worldwide Who's Who and The Top Executive Club of executives and professionals (2016).About Marquis Who's Who :Since 1899, when A. N. Marquis printed the First Edition of Who's Who in America , Marquis Who's Who has chronicled the lives of the most accomplished individuals and innovators from every significant field of endeavor, including politics, business, medicine, law, education, art, religion and entertainment. Today, Who's Who in America remains an essential biographical source for thousands of researchers, journalists, librarians and executive search firms around the world. Marquis now publishes many Who's Who titles, including Who's Who in America , Who's Who in the World , Who's Who in American Law , Who's Who in Medicine and Healthcare , Who's Who in Science and Engineering , and Who's Who in Asia . Marquis publications may be visited at the official Marquis Who's Who website at www.marquiswhoswho.com


Maraev A.A.,University of Information Technologies | Timofeev A.N.,University of Information Technologies
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2013

Energetic sensitivity of a system with optical equisignal zone is considered in the paper. Energetic sensitivity is a criterion for choosing components of such a system and determines its potential accuracy. In calculation of this term only monochromatic radiation of sources in previous studies. As we are going to use dispersion method for air refraction influence attenuation, light sources of different wavelengths must be used. Because of dispersion in lenses of the objective the distribution of energetic sensitivity along the distance is different for wavelengths used, and the response of the receiver depends on the wavelength, too. Thus the term of energetic sensitivity is revised for a spectrum and spectral response of the sensor is taken into account. The suggestion of using of effective energetic sensitivity in preliminary assessment of system sensitivity is confirmed by experimental results. © 2013 SPIE.


Turgalieva T.V.,University of Information Technologies | Konyakhin I.A.,University of Information Technologies
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2013

Characteristics of the system were studied in laboratory conditions. The research confirmed effectiveness of the considered angular deformation measurement system for large-size objects such as the primary mirror of a radio telescope. © 2013 SPIE.


Konyakhin I.A.,University of Information Technologies | Timofeev A.N.,University of Information Technologies | Konyakhin A.I.,University of Information Technologies
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2013

Ways of refining autocollimation systems for the inspection of angular deformation of industrial objects are analyzed. Control elements based on tetrahedral reflectors with plane and cylinder reflecting sides are researched. Results of an analysis the action matrix of tetrahedral reflectors are considered. The features of tetrahedral reflector as the control elements for three-axis angular systems are discussed. Equations for static characteristics of the measuring system are shown. © 2013 SPIE.


Vakulin D.A.,University of Information Technologies
Technical Physics Letters | Year: 2015

A new technique for determining the director pretilt angle in cells with hybrid or homeotropic alignment of a nematic liquid crystal has been developed. To use this technique, it is necessary to experimentally determine the transmission of an optical system in parallel polarizers and maximum transmission of a cell in crossed polarizers. The technique makes it possible to locally control the liquid crystal director alignment on an aligning surface. © 2015, Pleiades Publishing, Ltd.


Chivilikhin D.,University of Information Technologies | Ulyantsev V.,University of Information Technologies
GECCO 2013 - Proceedings of the 2013 Genetic and Evolutionary Computation Conference | Year: 2013

In this paper we present MuACOsm - a new method of learning Finite-State Machines (FSM) based on Ant Colony Optimization (ACO) and a graph representation of the search space. The input data is a set of events, a set of actions and the number of states in the target FSM. The goal is to maximize the given fitness function, which is defined on the set of all FSMs with given parameters. The new algorithm is compared with evolutionary algorithms and a genetic programming related approach on the well-known Artificial Ant problem. Copyright © 2013 ACM.

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