114 research outputs found
Activation of learning and creative activity of the vocational pedagogical university students
The relevance of the problem under study is based on the society’s demand for training students - future professional training teachers ready to solve in a creative manner a wide range of professional and pedagogical tasks, as well as to develop professionally-oriented creative work in the process of training; it is also caused by the insufficient extent of the prior research within the vocational training theory of scientific and methodological mechanisms required for implementing this process. The purpose of the article is to develop a conceptual structural model of professionally-oriented learning and creative activity of the vocational pedagogical university students. Leading method for studying this problem is modelling which allows to consider this problem as the process of goaloriented and deliberate acquiring by future professionals the creative approaches to implementation of professional activity. The article presents a structural model of learning and creative activity of vocational pedagogical university students, justifies the necessity to single out in the structure of the students’ learning and creative activity three interconnected components (creative, professional-pedagogical and personal-acmeological), proves the productivity of activating the learning and creative activity of the vocational pedagogical university students by organizing it as quasi-professional process of searching and solving professional tasks which are subjectively and objectively new, on the basis of using synectics including association methods of activating creative thinking integrated into the its structure. The article can be useful for teachers within the vocational and pedagogical education system, as well as for professionals who develop creative abilities of students based on the heuristic creativity methods. © 2016 Krayukhina et al
The Low-Temperature Swirling-Type Furnace with the Air Boiler for the IGCC Compilation Possibility Analysis
The article considered the use of low-temperature swirling-type technology, for its application in the air-boiler design. The air boiler is one of the key elements in the scheme of hybrid integrated gasification combined cycle with external fuel combustion based on processes of coal heat treatment and "external" combustion of fuel. The scheme of the air boiler was chosen after analysis.В работе было рассмотрено использование низкотемпературной вихревой технологии, для её применения в схеме воздушного котла. Воздушный котел является одним из ключевых элементов в схеме гибридной ПГУ-ВЦГ с внешним сжиганием топлива на основе процессов термообработки угля и «внешнего» сжигания топлива. После анализа была выбрана схема воздушного котла
SWIRLING-TYPE FURNACE TEMPERATURE FIELD MODELING
The model of swirling-type furnace was created in this paper. The model was calculated using CFD–modeling. The influence of flue gas recirculation temperature on combustion gases temperature was analyzed.В работе была создана модель низкотемпературной вихревой топки. Модель рассчитана с помощью CFD–моделирования. Проанализировано влияние температуры газов рециркуляции на температуру продуктов сгорания
STU Black Holes and String Triality
We find double-extreme black holes associated with the special geometry of
the Calabi-Yau moduli space with the prepotential F=STU. The area formula is
STU-moduli independent and has symmetry in space of charges.
The dual version of this theory without prepotential treats the dilaton S
asymmetric versus T,U-moduli. We display the dual relation between new (STU)
black holes and stringy (S|TU) black holes using particular Sp(8, Z)
transformation. The area formula of one theory equals that of the dual theory
when expressed in terms of dual charges. We analyse the relation between (STU)
black holes to string triality of black holes: (S|TU), (T|US), (U|ST)
solutions. In the democratic STU-symmetric version we find that all three S and
T and U duality symmetries are non-perturbative and mix electric and magnetic
charges.Comment: 12 pages, 2 Postscript figures, ref.added, minor corrections, version
to appear in Phys. Rev.
Hygienic assessment of the conditions of stay of children in the organization of additional education in Nevyansk
The authors of this article assessed the sanitary and hygienic state of the institution of additional education, its mode of operation and structure. The evaluation criteria were the compliance with the sanitary and epidemiological requirements for the territory of the building, offices, temperature regime, ventilation, natural and artificial illumination. Also, a questionnaire was conducted to identify hygienic risk factors and the impact of the institution of additional education on the health of childrenАвторы данной статьи оценивали санитарно-гигиеническое состояние учреждения дополнительного образования, его режим работы и устройство. Критериями оценки являлось соответствие санитарно-эпидемиологических требований к территории здания, кабинетам, температурному режиму, вентиляции, естественной и искусственной освещенности. Также проведено анкетирование, позволяющее выявить гигиенические факторы риска и влияние учреждения дополнительного образование на здоровье дете
To the problem of optimization design air boiler heat exchange element scheme IGCC
Different approaches are considered for calculating the heat exchange element of an air boiler. The technical characteristics of the heat exchange element, namely the heat transfer coefficient, specific surface area, length and air speed, are studied, depending on the pipe diameter and air.Рассмотрены различные подходы для расчета теплообменного элемента воздушного котла. Исследованы технические характеристики теплообменного элемента, а именно коэффициент теплоотдачи, удельная поверхность, длина теплообменного элемента и скорость воздуха, в зависимости от диаметра труб и давления воздуха
Testing the Cosmological Constant as a Candidate for Dark Energy
It may be difficult to single out the best model of dark energy on the basis
of the existing and planned cosmological observations, because many different
models can lead to similar observational consequences. However, each particular
model can be studied and either found consistent with observations or ruled
out. In this paper, we concentrate on the possibility to test and rule out the
simplest and by far the most popular of the models of dark energy, the theory
described by general relativity with positive vacuum energy (the cosmological
constant). We evaluate the conditions under which this model could be ruled out
by the future observations made by the Supernova/Acceleration Probe SNAP (both
for supernovae and weak lensing) and by the Planck Surveyor cosmic microwave
background satellite.Comment: 6 pages, 2 figures, revtex
Spurious Shear in Weak Lensing with LSST
The complete 10-year survey from the Large Synoptic Survey Telescope (LSST)
will image 20,000 square degrees of sky in six filter bands every few
nights, bringing the final survey depth to , with over 4 billion
well measured galaxies. To take full advantage of this unprecedented
statistical power, the systematic errors associated with weak lensing
measurements need to be controlled to a level similar to the statistical
errors.
This work is the first attempt to quantitatively estimate the absolute level
and statistical properties of the systematic errors on weak lensing shear
measurements due to the most important physical effects in the LSST system via
high fidelity ray-tracing simulations. We identify and isolate the different
sources of algorithm-independent, \textit{additive} systematic errors on shear
measurements for LSST and predict their impact on the final cosmic shear
measurements using conventional weak lensing analysis techniques. We find that
the main source of the errors comes from an inability to adequately
characterise the atmospheric point spread function (PSF) due to its high
frequency spatial variation on angular scales smaller than in the
single short exposures, which propagates into a spurious shear correlation
function at the -- level on these scales. With the large
multi-epoch dataset that will be acquired by LSST, the stochastic errors
average out, bringing the final spurious shear correlation function to a level
very close to the statistical errors. Our results imply that the cosmological
constraints from LSST will not be severely limited by these
algorithm-independent, additive systematic effects.Comment: 22 pages, 12 figures, accepted by MNRA
One-loop corrections to the D3 brane action
We calculate one-loop corrections to the effective Lagrangian for the D3
brane. We perform the gauge-fixing of the kappa-symmetric Born-Infeld D3 brane
action in the flat background using Killing gauge. The linearized supersymmetry
of the gauge-fixed action coincides with that of the N=4 Yang-Mills theory. We
use the helicity amplitude and unitarity technique to calculate the one-loop
amplitudes at order alpha^4. The counterterms and the finite 1-loop corrections
are of the form (dF)^4 and their supersymmetric generalization. This is to be
contrasted with the Born-Infeld action which contains (F)^4 and other terms
which do not depend on derivatives of the vector field strength.Comment: 21 pages, LaTex with Axodraw figures. In the revised version new
references have been adde
Measurement of the analysing power in proton-proton elastic scattering at small angles
The proton analysing power in elastic scattering has been measured
at small angles at COSY-ANKE at 796 MeV and five other beam energies between
1.6 and 2.4 GeV using a polarised proton beam. The asymmetries obtained by
detecting the fast proton in the ANKE forward detector or the slow recoil
proton in a silicon tracking telescope are completely consistent. Although the
analysing power results agree well with the many published data at 796 MeV, and
also with the most recent partial wave solution at this energy, the ANKE data
at the higher energies lie well above the predictions of this solution at small
angles. An updated phase shift analysis that uses the ANKE results together
with the World data leads to a much better description of these new
measurements.Comment: 5 pages, 3 figure
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