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Search Results: 1 - 10 of 15942 matches for " Evgeny; Rodrigues "
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Submarine groundwater discharge (SGD) patterns through a fractured rock: a case study in the Ubatuba coastal area, Brazil
Bokuniewicz,Henry; Kontar,Evgeny; Rodrigues,Marcelo; Klein,Daniel Andreas;
Revista de la Asociaci?3n Argentina de Sedimentolog?-a , 2004,
Abstract: the flow of groundwater out across the sea floor has the potential to influence sedimentary processes, sea floor morphology, pore water chemistry and benthic habitats. relatively few observations of the process of submarine groundwater discharge (sgd) have been made. measurements along the south american coast and over fractured rock aquifers are especially rare. the rate and distribution of sgd was measured using vented, benthic chambers on the floor of flamengo bay located at the southeast coast of brazil. discharge rates were found exceeding 200 cm3 s-1 of pore water per cm2 of sea floor per day (200 cm day-1). large variations in sgd rates were seen over distances of a few meters. we attribute the variation to the geomorphologic features of the fracture rock aquifer underlying a thin blanket of coastal sediments. clustering of fractures and the topography of the rock-sediment interface might be focusing or dispersing the discharge of groundwater.
Submarine groundwater discharge (SGD) patterns through a fractured rock: a case study in the Ubatuba coastal area, Brazil
Henry Bokuniewicz,Evgeny Kontar,Marcelo Rodrigues,Daniel Andreas Klein
Revista de la Asociación Argentina de Sedimentología , 2004,
Abstract: The flow of groundwater out across the sea floor has the potential to influence sedimentary processes, sea floor morphology, pore water chemistry and benthic habitats. Relatively few observations of the process of submarine groundwater discharge (SGD) have been made. Measurements along the South American coast and over fractured rock aquifers are especially rare. The rate and distribution of SGD was measured using vented, benthic chambers on the floor of Flamengo Bay located at the southeast coast of Brazil. Discharge rates were found exceeding 200 cm3 s-1 of pore water per cm2 of sea floor per day (200 cm day-1). Large variations in SGD rates were seen over distances of a few meters. We attribute the variation to the geomorphologic features of the fracture rock aquifer underlying a thin blanket of coastal sediments. Clustering of fractures and the topography of the rock-sediment interface might be focusing or dispersing the discharge of groundwater.
Computer Image Analysis as a Tool for Microbial Viability Assessment: Examples of Use and Prospects  [PDF]
Evgeny Puchkov
Journal of Biosciences and Medicines (JBM) , 2014, DOI: 10.4236/jbm.2014.23001
Abstract: Application of the computer image analysis for improving microbial viability assessment by plate count and fluorescence microscopy was investigated. Yeast cells were used as a model microorganism. The application of the improved methods for the viability assessment of yeast cells after preservation by freezing and freeze-drying was demonstrated.
Image Analysis in Microbiology: A Review  [PDF]
Evgeny Puchkov
Journal of Computer and Communications (JCC) , 2016, DOI: 10.4236/jcc.2016.415002
Abstract:
This review is focused on using computer image analysis as a means of objective and quantitative characterizing optical images of the macroscopic (e.g. microbial colonies) and the microscopic (e.g. single cell) objects in the microbiological research. This is the way of making many visual inspection assays more objective and less time and labor consuming. Also, it can provide new visually inaccessible information on relation between some optical parameters and various biological features of the microbial cul-tures. Of special interest is application of image analysis in fluorescence microscopy as it opens new ways of using fluorescence based methodology for single microbial cell studies. Examples of using image analysis in the studies of both the macroscopic and the microscopic microbiological objects obtained by various imaging techniques are presented and discussed.
New Consideration of Problems of Gravitational Optics and Dark Matter Based on Crystal Model of Vacuum  [PDF]
Evgeny V. Chensky
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2010, DOI: 10.4236/jemaa.2010.28066
Abstract: In presented paper we try to consider problems of the gravitational optics and dark matter developing from the crystal model for the vacuum. How it is follows from consideration it enables to describe both electromagnetic waves and spectrum of elementary particles from the unified point of view. Two order parameters – a polar vector and an axial vector - had to be introduced as electrical and magnetic polarization, correspondingly, in order to describe dynamic properties of vacuum. Vacuum susceptibility has been determined to be equal to the fine structure constant . Unified interaction constant g for all particles equal to the double charge of Dirac monopole has been found (g = e/, where e charge electron). The fundamental vacuum constants are: g, , parameters of length and parameters of ti- me for electron and nucleon oscillations, correspondingly. Energy of elementary particles has been expressed in terms of the fundamental vacuum parameters, light velocity being equal to . The term mass of particle has been shown to have no independent meaning. Particle energy does have physical sense as wave packet energy related to vacuum excitation. Exact equation for particle movement in the gravitational field has been derived, the equation being applied to any relatively compact object: planet, satellite, electron, proton, photon and neutrino. The situation has been examined according to the cosmological principle when galaxies are distributed around an infinite space. In this case the recession of galaxies is impossible, so the red shift of far galaxies’ radiation has to be interpreted as the blue time shift of atomic spectra; it follows that zero-energy, and consequently electron mass are being increased at the time. Since physical vacuum has been existed eternally, vacuum parameters can be either constant, or oscillating with time. It is the time oscillation of the parameters that leads to the growth of electron mass within the last 15 billion years and that is displayed in the red shift; the proton mass being decreased that is displayed in planet radiation.
Stratospheric “wave hole” and interannual variations of the stratospheric circulation in late winter  [PDF]
Evgeny A. Jadin
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.34033
Abstract: Using the monthly mean NCEP dataset, the analysis of the upward and downward propagation of planetary waves was conducted by means of the three-dimensional Eliassen-Palm (EP) fluxes in the stratosphere. It is shown that the upward/downward EP fluxes are observed in different regions of the atmosphere: their well- known upward propagation takes place over North Eurasia, while the downward one revealed over North Atlantic and Canada in a region of the so-called stratospheric “wave hole”. Generation of the downward wave signal may be associated with a reflection of planetary waves in the upper stratosphere. It is shown that the downward EP flux responsible for the sink of eddy energy from the stratosphere to the troposphere is important in late winter (January-February) for an understanding of the stra- tosphere-troposphere coupling on the interannual and decadal timescales, in particular the 11-year solar cycle influence on the stratosphere. Results presented can explain the unusual behavior of a few winters in the Arctic stratosphere, which are outlier from the known Labitzke, van Loon’s correlations of stratospheric parameters with the 11-year solar cycle under separation in the west/east phases of the equatorial quasi-biennial oscillation.
Resource Differentiation of Knowledge  [PDF]
Evgeny Popov, Maxim Vlasov
iBusiness (IB) , 2011, DOI: 10.4236/ib.2011.32028
Abstract: The objective of the present research is classification of institutions for knowledge generation at a minimal economic level and formulation of a strategy regarding knowledge generation, which would allow introducing modifications into engineering processes. Based on the methodological apparatus for institutional economics, classification of economic institutions for new knowledge generation at a minimal economic level has been accomplished. The author has conducted an empirical study concerned with allocation of shares of new knowledge generation according to the degree of change impact on production processes of economic entities. As a result of the research carried out by us the structure of external and internal risks in the context of new knowledge generation has been determined; evaluation of risk factor significance has been made; weighting coefficient values for each risk factor have been determined through expert estimation. The received results allow the enterprises to carry out an estimation, forecasting and planning of generation of new knowledge.
Examining the M67 Classification as an Open Cluster  [PDF]
Shimmon Naim, Evgeny Griv
International Journal of Astronomy and Astrophysics (IJAA) , 2012, DOI: 10.4236/ijaa.2012.23020
Abstract: The cluster M67 (= NGC 2682) in Cancer is a rich stellar cluster, usually classified as an open cluster. Using our own observations with the 0.4 m telescope, we show that M67 is a tight group of about 1200 stars. The actual radius of the cluster is about 3.1 pc and the average mass of a star in the system is about . We also show that the ratio of the mean kinetic energy of the cluster to its mean gravitational potential energy , while the value predicted by the virial theorem is equal to . So the system is a gravitationally bound. This value of is considered as an evidence of quasi-stability of the cluster and allows us to use the Chandrasekhar-Spitzer relaxation time for M67 Myr as a characteristic dynamical relaxation time of the system. As the cluster is almost twice older its half-life time , it is argued that M67 was in the past (about 4 Gyr ago, close to its forma-tion) a relatively small ( stars) globular cluster, but got “open cluster” shape due to the dynamical evapora-tion of the majority of its stars.
The Oscillating Universe Theory (To the Unified Field Theory)  [PDF]
Evgeny V. Chensky
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.34052
Abstract:

This paper represents model of oscillating universe theory. We try to realize model of both electromagnetic waves and spectrum of elementary particles from the unified point of view. Consideration of problems of the gravitational optics and dark matter is developing from the solid crystal model for the vacuum. The vacuum is represented as a three-dimensional crystal lattice matter with a very small lattice period, much less than 10-26 cm. The oscillators are located at the nodes of an infinite lattice. It is shown that an infinite set of equations to describe the coupled oscillations of moving oscillators converges to a system of twelve equations. We have obtained the combined equations for a multicomponent order parameter in the form of the electric and magnetic vacuum polarization, which defines the spectrum and symmetry of normal oscillations in the form of elementary particles. Two order parameters—a polar vector and an axial vector— had to be introduced as electrical and magnetic polarization, correspondingly, in order to describe dynamic properties of vacuum. Vacuum susceptibility has been determined to be equal to the fine structure constant a. Unified interaction constant g for all particles equal to the double charge of Dirac monopole has been found (g = e/a, where e—electron charge). The fundamental vacuum constants are: g, a,

The Genesis and Evolution of the Caspian Sea Lagoons as Avifauna Refuges at the Transboundary Scale  [PDF]
Evgeny Viktorovich Vilkov
Open Journal of Marine Science (OJMS) , 2016, DOI: 10.4236/ojms.2016.61011
Abstract: The article summarizes 34 years (1980-2014) of the original observations of the genesis and evolution stages of the Caspian lagoons. A model of the formation and evolution of the coastal lagoons has been worked out. It can be applied to the modelling of the global geoecological scenario along all the world’s coasts characterized by a steady transgression of their marine areas. The lagoons had been formed in a “bottleneck”, a narrow migration corridor, traversed by the largest migration route of trans-Palearctic species in Russia. This route is part of theWest Siberian-East Africanmigration range. Year round bird censuses (n = 746) were taken by the author in 1995-2014 along two key routes in the regions of Turalinskaya and Sulakskaya lagoons of Daghestan (the western coast of the Middle Caspian Sea). The meridional orientation of lagoons, location of the migration trajectory and a wide range of habitats in the study area contribute to the preservation of 294 Eurasian bird species. After formation of the lagoons, the breeding avifauna of the Caspian Sea Region of Central Daghestan has added 32 taxa. Among the species recorded at the lagoons, 50 are included in the IUCN Red List, Red Data Books of Russia and Daghestan. The reconstruction analysis of the migration trajectory compiled according to the data of the Russian Bird Ringing Centre allowed us to determine the population distribution geography for the birds regularly migrating along the western coast of the Caspian Sea and refine borders of theWest Siberian-East Africanmigration range. Thus, according to the information received, the current migratory range should be greatly extended to cover the area from the British Isles in the West Palearctic to Lake Baikal in the east, including the extreme west and south of Africa.
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