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Year-round cooling and thermal stabilization of water-saturated soils under engineering structures

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Research in Cold and Arid Regions 2017年第3期9卷 258-260页

作者： Vladimir Moiseev Nicolai Vasiliev tatyana Komarova Olga Komarova Department of Mathematics Emperor Alexander I St.Petersburg State Transport University Static Research of Soils Laboratory B.E.Vedeneev VNIIG JSC DISIST Scientific Center

We consider the problem of year-round cooling of water-saturated soil to freezing temperatures in order to convert it into a state of permafrost.A new soil-cooling apparatus is *** apparatus is to be made in modular form and connected to passive-active thermal piles(thermosyphons).The estimated capacity of one apparatus allows simultaneous use of up to 1,000 thermal piles for ground *** apparatus is based on natural sources of energy:solar radiation and wind;and it can be used for soil *** approach can prevent thawing of soft soils under railways and roads,as well as under buildings or structures,in an area of more than tens of *** apparatus has no mechanical moving parts and can operate for a long time in stand-alone mode without staff involvement.

关键词： thermopiles frozen soil preventing of thawing the apparatus for cooling

Complex of general seismic zoning maps OSR-2017 of Uzbekistan

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Geodesy and Geodynamics 2020年第4期11卷 273-292页

作者： Turdali Usmanalievich Artikov Roman Solomonovich Ibragimov tatyana Lyudvigovna Ibragimova Myurodjon Abdyurahimdjanovich Mirzaev Institute of Seismology Academy of Science of the Republic of UzbekistanTashkentUzbekistan

The quantitative assessment of seismic hazard of Uzbekistan has been examined,and new maps of seismic zoning has been *** seismological areas and seism-generating zones are considered as seismic sources,based on the analysis of seismotectonic *** seismological parametrization of seismic sources has been carried out,including determination of parameters of earthquake’s reoccurrence for different power levels,seismic potential and a predominant type motion in the source of occurring *** reoccurrence parameters of seismic sources were both determined by directly from Gutenberg-Richter dependence law and using summation and distribution *** were conducted separately for a sample of strong(M≥5)and weak(M<5)*** seismic potential Mmax of seismic active zones was determined by seismological and seismotectonic *** predominant type of movement in the faulting for each seismic source is reverse *** regularities of seismic intensity attenuation with distance of different power levels are *** seismic hazard is expressed in points of a macro seismic scale,in velocities and accelerations of ground motions,and it is characterized by calculated seismic intensity with the set probability(P=0.9,P=0.95,P=0.98 and P=0.99)not exceed within 50 years in the constructed *** seismic zoning map,the seismic intensity was in average soil *** developed complex of maps considers a number of uncertainties of the input parameters in relation to both incompleteness of initial seismological and seismotectonic data,as well the probabilistic nature of seismic process and seismic *** factors of uncertainty of the input parameters are taken into account by constructing a logic *** constructed maps of the general seismic zoning are intended for imple menting antiseismic actions in Uzbekistan.

关键词： Seismic hazard Seismic zoning Seismic sources Seismic activity Seismic potential Seismic load intensity attenuation laws

An Integrated Study to Analyze Salt Lake Microbial Community Structure(Novosibirsk Oblast,Russia)

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Acta Geologica Sinica(English Edition) 2014年第S1期88卷 61-62页

作者： Alla BRYANSKAYA Alexey ROZANOV tatyana MALUP Taisiya ALESHINA Elena LAZAREVA Oxana TARAN tatyana GORYACHKOVSKAYA Vladimir IVANISENKO Sergey PELTEK Institute of Cytology and Genetics The Siberian Branch of the Russian Academy of Sciences Institute of Geology and Mineralogy The Siberian Branch of the Russian Academy of Sciences Boreskov Institute of Catalysis The Siberian Branch of the Russian Academy of Sciences

Salt Lake is one of the lakes in the system,consisting of a huge amount of salt and bitter-salty lakes in Novosibirsk Oblast and Altai *** lakes are unique and highly unstable systems where the parameters of geochemical

关键词： Salt Lake microbial community Novosibirsk Oblast.

Extreme Values of Wind Speed over the Kara Sea Based on the ERA5 Dataset

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Atmospheric and Climate Sciences 2021年第1期11卷 98-113页

作者： Alexander Kislov tatyana Matveeva Department of Meteorology and Climatology Faculty of Geography Lomonosov Moscow State University Moscow Russia Laboratory of Climate Institute of Geography Russian Academy of Sciences Moscow Russia

Extreme values of wind speed were studied based on the highly detailed ERA5 dataset covering the central part of the Kara Sea. Cases in which the ice coverage of the cells exceeded 15% were filtered. Our study shows that the wind speed extrema obtained from station observations, as well as from modelling results in the framework of mesoscale models, can be divided into two groups according to their probability distribution laws. One group is specifically designated as black swans, with the other referred to as dragons (or dragon-kings). In this study we determined that the data of ERA5 accurately described the swans, but did not fully reproduce extrema related to the dragons;these extrema were identified only in half of ERA5 grid points. Weibull probability distribution function (PDF) parameters were identified in only a quarter of the pixels. The parameters were connected almost deterministically. This converted the Weibull function into a one-parameter dependence. It was not clear whether this uniqueness was a consequence of the features of the calculation algorithm used in ERA5, or whether it was a consequence of a relatively small area being considered, which had the same wind regime. Extremes of wind speed arise as mesoscale features and are associated with hydrodynamic features of the wind flow. If the flow was non-geostrophic and if its trajectory had a substantial curvature, then the extreme velocities were distributed according to a rule similar to the Weibull law.

关键词： ERA5 Kara Sea Weibull Probability Distribution Function Wind Speed Hydrodynamics and Statistics of Extreme Events

The Monsoon over the Barents Sea and Kara Sea

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Atmospheric and Climate Sciences 2020年第3期10卷 339-356页

作者： Alexander Kislov tatyana Matveeva Department of Meteorology and Climatology Lomonosov Moscow State University Moscow Russia Laboratory of Climatology Institute of Geography Russian Academy of Science Moscow Russia

In the Arctic (mainly in its European sector) there is statistically detectable seasonal reversal wind pattern. The combination of seasonally warm (cold) land surfaces in arctic areas together with cool (cool) sea surface of Arctic seas not covered by ice is conducive to the formation of a monsoon like system. On the other hand, the predominance of the cyclonic regime during all seasons makes it difficult to answer the question of whether the Arctic region belongs to the monsoon type pattern. In this study, the monsoon features of atmospheric circulation over the Barents and Kara Seas were analysed. To extract specific monsoon signs, atmospheric circulation systems (separately for areas of each sea) were divided into ten weather types. Their appearance and statistics were compared with indicators of regional circulation. A significant part of intra-annual monsoon variability is associated with the configuration of such modes as the North Atlantic Oscillation and the Scandinavia teleconnection patterns. For example, during the winter season, the monsoon currents (from land to sea) occur only with a positive North Atlantic Oscillation index. With the prevalence of other modes of variability, the direction of the winds can be different, and the regular monsoon circulation pattern is changed by chaotic regime. In summer, northern streams (from sea to land) are realized on the western periphery of cyclones, regenerating and stabilizing over the Kara Sea. As for anomalies, the nature of the monsoons is manifested in the statistics of extreme winds even without selecting data on the regimes of variability. So, in winter, maximum speeds fall on the southern streams, and in the summer—on the northern ones. Large precipitation anomalies during all seasons, as one would expect, are encountered most often with the cyclonic type of circulation.

关键词： Monsoon The North Atlantic Oscillation The Scandinavia Teleconnection Pattern Barents Sea Kara Seas

Cherenkov radiation from electrons passing through human tissue

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Journal of Innovative Optical Health Sciences 2017年第1期10卷 94-98页

作者： Pavel Lukin Izmail Batkin Alexandr N.Almaliev tatyana A.Churakova Mikhail A.Dolgopolov Igor V.Kopytin Department of Physics Voronezh State University 1 Universitetskaya Sq.Voronezh 394000Russia School of Electrical Engineering and Computer Science University of Ottawa 800 King Edward A venue OttawaON CanadaK1N 6N5

A method for investigating the optical properties of human tissues is *** method is based on the measurement of Cherenkov radiation produced by relativistic electrons passing through the ***-Carlo simulation of visible photon emission and propagation is carried out taking into account multiple electron and photon scattering *** of the Cherenkov radiation to the optical characteristics of human tissues is demonstrated.

关键词： Coherent radiation human tissue optics multiple scattering.

An Extreme Value Analysis of Wind Speed over the European and Siberian Parts of Arctic Region

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Atmospheric and Climate Sciences 2016年第2期6卷 205-223页

作者： Alexander Kislov tatyana Matveeva Department of Meteorology and Climatology Lomonosov Moscow State University Moscow Russia

Multiyear observed time series of wind speed for selected points of the Arctic region (data of station network from the Kola Peninsula to the Chukotka Peninsula) are used to highlight the important peculiarities of wind speed extreme statistics. How largest extremes could be simulated by climate model (the INM-CM4 model data from the Historical experiment of the CMIP5) is also discussed. Extreme value analysis yielded that a volume of observed samples of wind speeds are strictly divided into two sets of variables. Statistical properties of one population are sharply different from another. Because the common statistical conditions are the sign of identity of extreme events we therefore hypothesize that two groups of extreme wind events adhere to different circulation processes. A very important message is that the procedure of selection can be realized easily based on analysis of the cumulative distribution function. The authors estimate the properties of the modelled extremes and conclude that they consist of only the samples, adhering to one group. This evidence provides a clue that atmospheric model with a coarse spatial resolution does not simulate special mechanism responsible for appearance of largest wind speed extremes. Therefore, the tasks where extreme wind is needed cannot be explicitly solved using the output of climate model. The finding that global models are unable to capture the wind extremes is already well known, but information that they are members of group with the specific statistical conditions provides new knowledge. Generally, the implemented analytical approach allows us to detect that the extreme wind speed events adhere to different statistical models. Events located above the threshold value are much more pronounced than representatives of another group (located below the threshold value) predicted by the extrapolation of law distributions in their tail. The same situation is found in different areas of science where the data referring t

关键词： Extreme Wind Speed Analysis Arctic Circulation Modelled Extreme Wind Speed

Urban air pollution,climate and its impact on asthma morbidity

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Asian Pacific Journal of Tropical Biomedicine 2016年第1期6卷 76-79页

作者： Lyudmila Vasilievna Veremchuk Vera Innokentievna Yankova tatyana Isaakovna Vitkina Anna Vladimirovna Nazarenko Kirill Sergeevich Golokhvast Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration Research Institute of Medical Climatology and Rehabilitation Treatment Scientific Educational Center of Nanotechnology Far Eastern Federal University

Objective:To study the mechanism of formation of air quality and to determine the impact of the studied factors on asthma morbidity in ***:The evaluation of air pollution in Vladivostok was done using long-term(2008-2012) monitoring data(temperature,humidity,atmospheric pressure,wind speed,etc.).The levels of suspended particulate matter,nitrogen and sulfur dioxide,carbon monoxide,ammonia,formaldehyde(mg/m^3) in six stationary observation posts were *** studied the aerosol suspensions of solid particles,which were collected during snowfall from precipitation(snow) and air in 14 districts with different levels of anthropogenic *** snow was analyzed on laser *** impact of air pollution on the distribution of asthma morbidity was evaluated in various age groups by data of federal statistical observation obtained from 8 adults and 7 children municipal clinics in Vladivostok(2008-2012).Results:The content of suspended particulate components of pollution remained more stable,due to the features of atmospheric circulation,rugged terrain and residential *** nano- and micro-sized particles(0-50 μm),which can absorb highly toxic metals,prevail in dust *** respirable fractions of particles,even in small doses,can contribute to the increase in asthma morbidity in the ***:We determined that asthma morbidity depends from general air pollution(in the range of 18.3%).It was detected that the highest age-specific dependence is associated with the content of particulate matter,carbon monoxide and nitrogen dioxide in air.

关键词： Air quality assessment Climatic factors Air pollution Atmospheric microparticles Asthma morbidity

Defatted black soldier fly (Hermetia illucens) in pikeperch (Sander lucioperca) diets: Effects on growth performance, nutrient digestibility, fillet quality, economic and environmental sustainability

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Animal Nutrition 2023年第1期12卷 7-19页

作者： Vlastimil Stejskal Hung Quang Tran Markéta Prokesová Mahyar Zare tatyana Gebauer Tomas Policar Christian Caimi Francesco Gai Laura Gasco University of South Bohemia in Ceske Budejovice Faculty of Fisheries and Protection of WatersSouth Bohemian Research Center of Aquaculture and Biodiversity of HydrocenosesHusova tr.458/10237005 CeskéBudějoviceCzech Republic University of Torino Department of AgriculturalForest and Food SciencesLargo P.Braccini 210095 GrugliascoItaly National Research Council Institute of Sciences of Food ProductionLargo P.Braccini 210095 GrugliascoItaly

The use of insect meal in aquafeed formulations has recently gained *** knowledge about the inclusion levels for pikeperch(Sander lucioperca),a promising candidate for intensive aquaculture in Europe remains,however,*** the present study,4 isoproteic(45%dry matter)and isoenergetic(21 MJ/kg)diets were formulated,including a control diet(H0)containing 30%fishmeal(FM)on an as-fed basis and the other 3 diets in which FM protein was replaced by defatted black soldier fly(Hemetia illucens)meal(HIM)at 25%,50%,and 100%(diet abbreviation H9,H18 and H36,corresponding to an inclusion level of 9%,18%and 36%,respectively).The feeding trial was performed in triplicate groups of 50 juvenile pikeperch(mean weight,68.7 g)fed with experimental diets for 84 d during which the growth performance,nutrient digestibility,fillet quality and economic and environmental sustainability of rearing pikeperch were *** findings indicated that pikeperch in H0,H9,and H18 groups displayed better results regarding growth performance indices,except for survival rate where no significant difference among groups was recorded(P?0.642).A significantly lower organ-somatic index,including hepatosomatic,viscerosomatic and perivisceral fat index,was found in fish in H18 groups than other groups(P0.05)but did reduce total n-3 fatty acids(P?0.001)and increased total n-6(P<0.001).Increasing inclusion levels of HIM reduced the environmental impacts associated with fish in-to-fish out ratio but entailed heavy burdens on e

关键词： Alternative feed Digestibility Fish in-to-fish out ratio Insect meal Percids Sustainability