74 research outputs found
Optimization of the Educational Expenses in the Municipal Districts
In modern conditions, the vast majority of municipalities in the Russian Federation are expeÂriencing financial difficulties associated with a lack of incoming financial resources and a conÂstant increase in costs. The key to improving the situation is to reduce costs and redistribute the released resources to activities aimed at improving the quality of public and municipal services provided to the population. Non-profit concession allows to combine efforts, finances, human potential and direct concentrated resources to solving priority problems. The purpose of the article is to confirm the hypothesis that the use of non-profit concessions will reduce the cost of providing education while maintaining or improving the quality of services provided to the population in this area. The results obtained in the course of the study can be used to increase the effectiveness of education systems in the municipal districts of all regions of the Russian Federation, and their individual elements will be suitable for use in similar purposes in towns
Modelling LAI at a regional scale with ISBA-A-gs: comparison with satellite-derived LAI over southwestern France
International audienceA CO2-responsive land surface model (the ISBAA- gs model of M´et´eo-France) is used to simulate photosynthesis and Leaf Area Index (LAI) in southwestern France for a 3-year period (2001–2003). A domain of about 170 000 km2 is covered at a spatial resolution of 8 km. The capability of ISBA-A-gs to reproduce the seasonal and the interannual variability of LAI at a regional scale, is assessed with satellite-derived LAI products. One originates from the CYCLOPES programme using SPOT/VEGETATION data, and two products are based on MODIS data. The comparison reveals discrepancies between the satellite LAI estimates and between satellite and simulated LAI values, both in their intensity and in the timing of the leaf onset. The model simulates higher LAI values for the C3 crops than the satellite observations, which may be due to a saturation effect within the satellite signal or to uncertainties in model parameters. The simulated leaf onset presents a significant delay for C3 crops and mountainous grasslands. In-situ observations at a mid-altitude grassland site show that the generic temperature response of photosynthesis used in the model is not appropriate for plants adapted to the cold climatic conditions of the mountainous areas. This study demonstrates the potential of LAI remote sensing products for identifying and locating models' shortcomings at a regional scale
Adiabatic description of nonspherical quantum dot models
Within the effective mass approximation an adiabatic description of
spheroidal and dumbbell quantum dot models in the regime of strong dimensional
quantization is presented using the expansion of the wave function in
appropriate sets of single-parameter basis functions. The comparison is given
and the peculiarities are considered for spectral and optical characteristics
of the models with axially symmetric confining potentials depending on their
geometric size making use of the total sets of exact and adiabatic quantum
numbers in appropriate analytic approximations
Seasonal and interannual variations of the upper ocean energetics between Tasmania and Antarctica
International audienceNine years of Topex/Poseidon and ERS satellite altimetry and XBT data from the SURVOSTRAL program were used to analyze the seasonal and interannual variations of the eddy energetics in terms of its spatial distribution and relation with the upper ocean heat content. Eddy kinetic energy is calculated in two frequency bands one associated with transient and the other with low-frequency variability. The two eddy components have distinct geographical distribution. At the SURVOSTRAL line, the transient eddy energy is twice the low-frequency energy, with maximum transient energy occurring during the austral summer period and maximum low-frequency energy in winter. The site is one of growing eddy energy. Eddy momentum flux is northward over the SURVOSTRAL line, and the summertime eddy heat flux is poleward across the Subantarctic and Subtropical Fronts, and equatorward either side of the fronts. Eddy fluxes are strongly influenced by their position relative to the bathymetry and the mean current
New Y-Function-Based Methodology for Accurate Extraction of Electrical Parameters on Nano-Scaled MOSFETs
International audienc
Investigation of the atmospheric boundary layer dynamics during the ESCOMPTE campaign
This paper presents some results about the behavior of the atmospheric
boundary layer observed during the ESCOMPTE experiment. This campaign, which
took place in south-eastern France during summer 2001, was aimed at
improving our understanding of pollution episodes in relation to the
dynamics of the lower troposphere. Using a large data set, as well as a
simulation from the mesoscale non-hydrostatic model Meso-NH, we describe and
analyze the atmospheric boundary layer (ABL) development during two specific
meteorological conditions of the second Intensive Observation Period (IOP).
The first situation (IOP2a, from 22 June to 23 June) corresponds to moderate,
dry and cold northerly winds (end of Mistral event), coupled with a sea-breeze
in the lower layer, whereas sea-breeze events with weak southerly winds
occurred during the second part of the period (IOP2b, from 24 June to 26 June).
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In this study, we first focus on the validation of the model outputs with a
thorough comparison of the Meso-NH simulations with fields measurements on
three days of the IOP: 22 June, 23 June and 25 June. We also investigate
the structure of the boundary layer on IOP2a when the Mistral is
superimposed on a sea breeze. Then, we describe the spatial and diurnal
variability of the ABL depths over the ESCOMPTE domain during the whole IOP.
This step is essential if one wants to know the depth of the layer where the
pollutants can be diluted or accumulated. Eventually, this study intends to
describe the ABL variability in relation to local or mesoscale dynamics
and/or induced topographic effects, in order to explain pollution transport
processes in the low troposphere
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