271 research outputs found
Природа легитимности власти в дискурсе переходного типа социальности
Рассмотрена природа легитимности власти в дискурсе переходного типа социальности, раскрыта специфика социальных институтов и ценностей переходного времени, рассмотрена проблема сохранения стабильности общества
Development of knowledge management systems on the basis of unified ontological knowledge base
Creation of knowledge management system on the basis of a united model of knowledge organisation described in the form of the system of ontologies supplement each other is suggested. The base organization ontology and a set of ontologies of knowledge fields are included in the system. The construction variant of such model of knowledge is described and structure of knowledge control system on its basis is suggested
Геоэкологическая характеристика и оценка влияния автотранспорта на компоненты окружающей среды города Томска
В дипломной работе рассматривается геоэкологическая характеристика г. Томска и приводится анализ факторов, обуславливающих геоэкологичсекие проблемы территории. Одним из основных антропогенных источников загрязнения компонентов природной среды города выделен автотранспорт. В работе приводятся индикаторные особенности загрязнения депонирующих природных сред на территории г. Томска вследствие воздействия от автотранспорта.The research paper contains the physical features of Tomsk and an analysis of the factors causing the ecological problem of Tomsk territory. One of the major anthropogenic sources of pollution of environmental components selected city vehicles. The paper gives particular indicator depositing pollution of the environment on the territory of Tomsk as a result of the impact from vehicles.
Thesis consists of 98 printed pages of text, 33 figures, 25 tables, bibliography includes 65 sources
Проект создания модульной теплицы с использованием технологии гидропоники и оценка его экономической эффективности
В работе рассматриваются современные проблемы сельского хозяйства, в частности выращивание овощей и бахчевых культур в регионах с средне-годовой температурой до минус 2 градусов цельсияGrowing vegetables in areas with cold winters
Геостатистические методы и алгоритмы построения объемных моделей параметров геологической среды
Целью данной работы является разработка метода оценки параметров геологической среды, обладающего разрешающей способностью данных геофизических исследований скважин и пространственной неоднородностью сейсмических атрибутов. Метод, предлагаемый в рамках данной работы, относится к классу геостатистических, однако в отличие от классических геостатситических методов, не требует введения предположения об однородности моделируемого параметра и использует сейсмические атрибуты для оценки пространственной корреляции. Предлагаемый метод также позволяет осуществлять оценку качества рассчитываемых моделей в любой точке исследуемого объёма.The main task of this work is to develop a method for assessing the geological environment parameters, with the geological well logging resolution and seismic attributes spatial heterogeneity. The proposed method is belongs to the geostatistics, however, unlike classical geostatistics methods, does not require the assumption of the modeled parameter homogeneity and uses seismic attributes to assess spatial correlation. The proposed method also allows you to assess the quality of the calculated models at any point in the investigated volume
Measurement of the cosmic ray spectrum above eV using inclined events detected with the Pierre Auger Observatory
A measurement of the cosmic-ray spectrum for energies exceeding
eV is presented, which is based on the analysis of showers
with zenith angles greater than detected with the Pierre Auger
Observatory between 1 January 2004 and 31 December 2013. The measured spectrum
confirms a flux suppression at the highest energies. Above
eV, the "ankle", the flux can be described by a power law with
index followed by
a smooth suppression region. For the energy () at which the
spectral flux has fallen to one-half of its extrapolated value in the absence
of suppression, we find
eV.Comment: Replaced with published version. Added journal reference and DO
Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory
The Auger Engineering Radio Array (AERA) is part of the Pierre Auger
Observatory and is used to detect the radio emission of cosmic-ray air showers.
These observations are compared to the data of the surface detector stations of
the Observatory, which provide well-calibrated information on the cosmic-ray
energies and arrival directions. The response of the radio stations in the 30
to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of
the incoming electric field. For the latter, the energy deposit per area is
determined from the radio pulses at each observer position and is interpolated
using a two-dimensional function that takes into account signal asymmetries due
to interference between the geomagnetic and charge-excess emission components.
The spatial integral over the signal distribution gives a direct measurement of
the energy transferred from the primary cosmic ray into radio emission in the
AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air
shower arriving perpendicularly to the geomagnetic field. This radiation energy
-- corrected for geometrical effects -- is used as a cosmic-ray energy
estimator. Performing an absolute energy calibration against the
surface-detector information, we observe that this radio-energy estimator
scales quadratically with the cosmic-ray energy as expected for coherent
emission. We find an energy resolution of the radio reconstruction of 22% for
the data set and 17% for a high-quality subset containing only events with at
least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO
Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
We measure the energy emitted by extensive air showers in the form of radio
emission in the frequency range from 30 to 80 MHz. Exploiting the accurate
energy scale of the Pierre Auger Observatory, we obtain a radiation energy of
15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV
arriving perpendicularly to a geomagnetic field of 0.24 G, scaling
quadratically with the cosmic-ray energy. A comparison with predictions from
state-of-the-art first-principle calculations shows agreement with our
measurement. The radiation energy provides direct access to the calorimetric
energy in the electromagnetic cascade of extensive air showers. Comparison with
our result thus allows the direct calibration of any cosmic-ray radio detector
against the well-established energy scale of the Pierre Auger Observatory.Comment: Replaced with published version. Added journal reference and DOI.
Supplemental material in the ancillary file
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