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Possible Signs of Life on the Planet Venus

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International Journal of Astronomy and Astrophysics 2013年第1期3卷 57-79页

作者： leonid V. Ksanfomality Space Research Institute of the raS Moscow Russia

It is possible, the question on the existence of extraterrestrial life will be answered not as a result of its search for in other worlds removed by distances of dozens of parsecs but on the surface of Venus, i.e., of the nearest planet of the Solar system. The search for “habitable zones” in extrasolar planetary systems is based on the postulate on “normal” physical conditions, i.e., the pressure, temperature, and maybe atmospheric composition similar to those on Earth. But could not such an approach be a kind of “terrestrial chauvinism”? Considering the conditions on Venus as a possible analogue of physical conditions on low-orbiting exoplanets of the “super-Earths” type, a new analysis of Venusian surface panoramas’ details has been made. These images were produced by the VENEra landers in 1975 and 1982. A few relatively large objects were found with size ranging from a decimeter to half meter and with unusual morphology. The objects were observed in some images, but were absent in the other or altered their shape. The article presents the obtained results and analyzes the evidence of reality of these objects.

关键词： Extraterrestrial Life Venus Physical Conditions

Mathematical Model of Embodied Symbols: Cognition and Perceptual Symbol System

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Journal of Behavioral and Brain Science 2012年第2期2卷 195-220页

作者： leonid Perlovsky Roman Ilin Air Force Research Laboratory Wright-Patterson Air Force Base Greene & Montgomery Ohio USA Harvard University Cambridge USA

A mathematical model of perceptual symbol system is developed. This development requires new mathematical methods of dynamic logic (DL), which have overcome limitations of classical artificial intelligence and connectionist approaches. The paper discusses these past limitations, relates them to combinatorial complexity (exponential explosion) of algorithms in the past, and relates it further to the static nature of classical logic. DL is a process-logic;its salient property is evolution of vague representations into crisp. We first consider one aspect of PSS: situation learning from object perceptions. Next DL is related to PSS mechanisms of concepts, simulators, grounding, embodiment, productiveity, binding, recursion, and to the mechanisms relating embodied-grounded and amodal symbols. We discuss DL capability for modeling cognition on multiple levels of abstraction. PSS is extended toward interaction between cognition and language. Experimental predictions of the theory are discussed. They might influence experimental psychology and impact future theoretical developments in cognitive science, including knowledge representation, and mechanisms of interaction between perception, cognition, and language. All mathematical equations are also discussed conceptually, so mathematical understanding is not required. Experimental evidence for DL and PSS in brain imaging is discussed as well as future research directions.

关键词： Perceptual Symbol System Embodied Cognition Perception Knowledge Representation Grounded Symbols Dynamic Logic

Turbulence Modeling Applied to Flow over a Hydraulic Ball Check Valve

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Engineering（科研） 2013年第8期5卷 685-691页

作者： leonid Grinis Vitaly Haslavsky Mechanical Engineering Sami Shamoon College of Engineering Beer-Sheva Israel

This paper describes an experimental, theoretical model, and a numerical study of concentrated vortex flow past a ball in a hydraulic check valve. The phenomenon of the rotation of the ball around the axis of the device, through which liquid flows, has been found. That is, vibration is caused by the rotation of the ball in the check valve. We observe the rotation of the ball around the longitudinal axis of the check valve. This rotation is induced by vortex shedding from the ball. We will discuss computational simulation and experimental investigations of this strong ball rotation. The frequency of the ball vibration and interaction with the check valve wall has been measured as a function of a wide range of Reynolds numbers. The validity of the computational simulation and of the assumptions on which it is based has been proved experimentally. This study demonstrates the possibility of controlling the vibrations in a hydraulic system and proves to be a very effective suppression of the self-excited vibration.

关键词： Check-Valve Vibration Vortex Shedding

NIR emitting terephthalates(SmxDyyGd1-x-y)2(tph)3(H2O)4 for luminescence thermometry in the physiological range

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Journal of rare Earths 2020年第5期38卷 492-497页

作者： Anastasia V.Orlova Vladislava Yu.Kozhevnikova leonid S.Lepnev Alexander S.Goloveshkin Irina M.Le-Deigen Valentina V.Utochnikova M.V.Lomonosov Moscow State University 1/3 Leninskye GoryMoscow119991Russian Federation P.N.Lebedev Physical Institute Leninsky prosp.531J9991MoscowRussian Federation A.N.Nesmeyanov Institute of Organoelement Compounds Russian Academy of SciencesVavilova St.28119991MoscowRussian Federation EVOLED Ltd. 1A-24 Puskina ielaRiga LV-1050Latvia

The first luminescence thermometer based on coordination compound of samarium and dysprosium is repo *** luminescence intensity and high signal resolution are reached thanks to the concentration quenching reduction due to the use of the trimetallic complexes of *** best thermometric properties in a wide temperature range among the studied systems are demonstrated by(Sm0.2Dy0.15Gd0.65)2(tph)3(H2O)*** sensitivity reaches 0.5%/K in visible range and 1.2%/K in NIR range at low temperatures and 0.5%/K and 0.8%/K in physiological range.

关键词： Luminescence Lanthanides Carboxylates Thermometry NIR range rare earths

A Variation Account of Divergent Thinking

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Journal of Literature and Art Studies 2017年第8期7卷 1039-1053页

作者： leonid Dorfman Vera Gassimova Perm State Institute of Culture Perm Russia

A variation account was applied to divergent thinking accommodated as a kind of creative thinking. To provide control （contrast） condition the variation account was applied to psychometric intelligence. Guilford＇s （1956, 1967, 1988） theory of divergent-----convergent thinking served the background of our study. The main premise was that creative variation represents ＂thought trials＂ with diverse ways to find a solution to the problem. Task demands and the respective creative problem solving reveal advantageous sources that suggest the variation. Probably, uncertainty, information search, and finding alternatives extracted from memory precede, entail and provide variety of seeking, as well. A principal hypothesis to be tested was that divergent thinking enables its variation rather than intelligence does that to its variation. As predicted, the divergent thinking and its variation were related. Compared to uncreative, creative persons were characterized by larger variation. Apart from the mathematical intelligence, other kinds of intelligence and their variation did not correlate. Mainly, the data obtained, thus, lend support to the claimed hypothesis.

关键词： variation creativity divergent thinking intelligence scattering

“Snake”: New Object of Hypothetical Venusian Fauna

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International Journal of Astronomy and Astrophysics 2014年第1期4卷 29-38页

作者： leonid V. Ksanfomality Space Research Institute of the Russian Academy of Sciences Moscow Russia

On March 1 and 5, 1982, experiments in television photography instrumented by the landers VENEra-13 and 14 returned panoramas of the Venus surface at the landing site. Over the past 31 years, no similar missions have been sent to Venus. In connection with the renewed interest in what was occurring during the experiment and to the discovery of manifestations of possible life revealed on some of the pictures, the panoramas were re-examined.?Analysis of treated once again VENEra-14 panoramic images revealed a?“snake”?object about 40 cm in size possessing apparent terramorphic features. The snake’s body stands out with its honeycomb, spotty surface against the stone plates close by. The “snake”?can be included into the list of the most significant findings of the hypothetical Venusian fauna. Apart from that, of interest is a?“dove”?object, although details of its structure cannot be discerned. The snake’s body show slow movements, which is another evidence of the Venusian fauna’s very slow style of activity, which appears to be associated with its energy constraints, and that is more likely, with the properties of its internal medium. The terramorphic features of the fauna, if they are confirmed, may point out outstandingly important and yet undiscovered general laws of the animated nature.

关键词： Planet Venus’ Fauna Astrobiology Space Vehicles Instruments Planet’s Surface

Estimation of Location Parameter from Two Biased Samples

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Applied Mathematics 2013年第9期4卷 1269-1277页

作者： leonid I. Piterbarg Department of Mathematics University of Southern California Los Angeles USA

We consider a problem of estimating an unknown location parameter from two biased samples. The biases and scale parameters of the samples are not known as well. A class of non-linear estimators is suggested and studied based on the fuzzy set ideas. The new estimators are compared to the traditional statistical estimators by analyzing the asymptotical bias and carrying out Monte Carlo simulations.

关键词： Biasness Fuzzy Estimator Location Parameter

The Cherenkov radiation in the Galaxy’s Halo of Dark Matter

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International Journal of Astronomy and Astrophysics 2013年第3期3卷 285-290页

作者： leonid M. Chechin V. G. Fessenkov Astrophysical Institute Almaty Kamenskoye Plato National Centre for the Space Researches and Technology National Space Agency Republic of Kazakhstan

The effect of light refraction in a galaxy’s halo of dark matter, described by profiles of Navarro-Frenk-White and Burkert, was considered. Powers of the Cherenkov radiation for the refractive indexes of gravitational fields with these profiles were calculated. It was shown that correspondent radiation temperature in the X-rays diapason have the magnitude about T^10-6K . It was also marked that its detection may be the criteria on choosing the preferable dark matter density distribution in a galaxy.

关键词： Dark Matter Profile The Cherenkov radiation

Quantum Gravity in Heisenberg Representation and Self-Consistent Theory of Gravitons in Macroscopic Spacetime

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Journal of Modern Physics 2013年第2期4卷 285-297页

作者： Grigory Vereshkov leonid Marochnik Physics Department University of Maryland East West Space Science Center College Park USA Research Institute of Physics Southern Federal University Rostov-on-Don Russia

The first mathematically consistent exact equations of quantum gravity in the Heisenberg representation and Hamilton gauge are obtained. It is shown that the path integral over the canonical variables in the Hamilton gauge is mathematically equivalent to the operator equations of quantum theory of gravity with canonical rules of quantization of the gravitational and ghost fields. In its operator formulation, the theory can be used to calculate the graviton S-matrix as well as to describe the quantum evolution of macroscopic system of gravitons in the non-stationary Universe or in the vicinity of relativistic objects. In the S-matrix case, the standard results are obtained. For problems of the second type, the original Heisenberg equations of quantum gravity are converted to a self-consistent system of equations for the metric of the macroscopic space time and Heisenberg operators of quantum fields. It is shown that conditions of the compatibility and internal consistency of this system of equations are performed without restrictions on the amplitude and wavelength of gravitons and ghosts. The status of ghost fields in the various formulations of quantum theory of gravity is discussed.

关键词： Quantum Gravity