ðàçðàáîòêà ïðèëîæåíèé iphone

Serial ¹ 1.
Paper
code: 23.01.2008
Title:
Determination of angular diameters of sky
objects and angular distances between them with
use of Drift method
Author:
D. Yakhimovich
Notes:
The work is made under supervising of senior lecturer
of General and Theoretical Department of Samara State
University Philippov Ju.P. It is
represented on Samara region conference of school
scientific research works at 2008.
Abstract
In
the present work the new technique of determination
of angular diameters of classical planets and angular distances between
sky objects, based on drift method is
developed. The problem of determination of visible movement angular velocity
of sky object is solved. The inaccuracy of a popular belief in limitation of
the approached formula for the given parameter at
big δ is strictly proved. The problem of
determination of distance
up to classical planets is solved. The new technique has been approbated
with use of the observation data for
Jupiter, Saturn, Mars (from
different years). The
single phenomenological parameter – linear
equatorial diameter of a planet was used only. The received values of
angular diameters and distances are confidently
coincided with the corresponding values generated
by known computer programs Orbits 3.0, RedShift 3.
Download:
pdffile
(demo)
of work (in russian) 
Serial ¹ 2.
Paper
code: 24.01.2008
Title:
Determination
of the sky object declination
according to the data of two measurements of its horizontal coordinates
Author:
A. Stratulat
Notes:
The work is made under supervising of senior lecturer
of General and Theoretical Department of Samara State
University Philippov Ju.P. It is
represented on Samara region conference of school
scientific research works at 2008.
Abstract
In the given work the new
method of determination of the sky object declination (δ) is formulated
according to the data of its horizontal coordinates and latitude of
observation place. Formulas for δ and its absolute error are calculated. The
given results are corrected for a refraction. The algorithm of definition of
true value δ among the received roots is represented. The numerical analysis
of the received results with use of Jupiter data observation is executed. It
is shown, that the absolute error for δ is decreased with growth of object
height owing to reduction of refraction influence and reduction of device
error. The error is rather small. It is equal to 34 % and can be reduced by
means of increase of measurements amounts. The received results are reliably
consistent to the data of computer program Orbits 3.0 and an astronomical
calendar.
Download:
pdffile
(demo)
of work (in russian) 
Serial ¹ 3.
Paper
code: 25.01.2008
Title:
Determination
of the angle velocity of Earth
rotation
Author:
A. Simonov
Notes:
The work is made under supervising of senior lecturer
of General and Theoretical Department of Samara State
University Philippov Ju.P. It is
represented on XVII AllRussia scientific  practical conference for the
gifted schoolboys «IntelDinastiyaAvangard 2008». The work is awarded with
the third degree diploma
of the winner in section
"Theoretical Physics".
.
Abstract
In the given work the new
technique of determination of Earth rotation angular velocity (ω_{Å})
is offered. The problem of determination of visible movement angular
velocity of sky object is solved. Unambiguous analitical connection between
the specified parameter and ω_{Å}
is derived. The exact and approximate formulas for ω_{Å},
Δω_{Å}
are received by the account of a refraction. The inaccuracy of a popular
belief in limitation of the approached formula in definition of angular
scales of sky objects (at big δ) is strictly proved. The numerical analysis
of the received results with use of Jupiter observation data is made. It is
shown, that the absolute error, Δω_{Å}
is small and in the majority of experiments does not exceed 1 %.
Unfortunately, the numerical results received on the available data, do not
strictly allow to fix nonuniform character of Earth rotation. However it is
revealed a number of the indirect facts specifying the presence of the last
one.
Download:
pdffile (demo) of work
(in russian) 
Serial ¹ 4.
Paper
code: 26.01.2008
Title:
The quantitative analysis
of Galilean satellites motion.
Estimation of mass and average
mass density of
Jupiter
Author:
A. Kalimullina
Notes:
The work is made under supervising of senior lecturer
of General and Theoretical Department of Samara State
University Philippov Ju.P. It is
represented on XVII AllRussia scientific  practical conference for the
gifted schoolboys «IntelDinastiyaAvangard 2008».
Abstract
In the given work the new
technique of definition of à) angular distances between satellites and
Jupiter, based on the drift method, b) their basic kinematic parameters (orbit
radius, period and a polar angle), c) mass and average mass density of the
Jupiter is offered. The problem of determination of distance up to classical
planets is also solved. The numerical analysis of analytical results is
executed with use of the Jupiter system observation data derived by the
elementary equipment of the astronomer–amateur (taking into account a
refraction). Our results for radiuses of orbits
and periods of galilean satellites are confidently consistent with the
results of astronomers  professionals. It is shown, that our results for
mass and average mass density of the Jupiter are
rather close to corresponding tabulared values. Two phenomenological
parameters are only used in the given work .
Download:
pdffile (demo) of work
(in russian)

Serial ¹ 5.
Paper
code: 27.01.2008
Title:
The Role of chain
reactions in human activity
Author:
O. Kondrashov
Notes:
The work is made under supervising of senior lecturer
of General and Theoretical Department of Samara State
University Philippov Ju.P. It is represented on
XVII AllRussia scientific  practical conference for the gifted schoolboys
«IntelDinastiyaAvangard 2008». The work is
awarded with the second
degree diploma of the
winner in section
"Theoretical Physics".
Abstract
The review
of bases of the modern theory of chain reactions is represented in the given
work. The general solution of the differential equations system describing
dependences of amounts of nondecay nucleus for the first
nelements of decay chain A_{1}→A_{2}→A_{3} → A_{4}
→ ... →A_{n1}→A_{n} →... is derived in two cases with
use of mathematical induction method. These cases are 1) specific case (at
the initial moment t=0 there was only isotope A_{1}, in amount N_{01}),
and 2) general case (at the initial moment there was a mix of isotopes
A_{1}, A_{2}, A_{3}..., A_{n1}, A_{n}...
in amounts N_{01}, N_{02}, N_{03}..., N_{0n}).
The numerical analysis of two reactions of nuclear energy sources production
(^{239}Pu, ^{233}U) is executed. These reactions proceed
in nuclear reactors together with chain reactions of decay ^{235}U.
The elementary model of calculation of critical mass for a sphere from
nuclear energy source without taking into account a reflecting environment
is represented.
Download:
pdffile (demo) of work
(in russian)v

Serial ¹ 6.
Paper
code: 28.01.2008
Title:
A critical
radius of comet tail particles
is as one of crucial parameters in the
description of comet evolution (Lagrange's
approach)
Author:
Yu. A. Snetkova
Notes:
The work is made under supervising of senior lecturer
of General and Theoretical Department of Samara State
University Philippov Ju.P. It is
represented on
AllRussia
competition of student research works on
astronomy
"Astronet2004"
(the
first degree diploma
of the winner).
Abstract
The analytical expression for
critical radius of the spherical particle taking into account as gravitation
of the Sun and comet nucleus as light pressure is derived in the given work.
The numerical analysis of the given result with use of the data for
1P/Halley comet is submitted. Motion laws of comet nucleus and comet tail
particle for 1P/Halley are received in the framework of the restricted three
body problem. The opportunity of formation of different types of comet tails
is shown on concrete examples. The analytical result for "evaporation
sphere" radius of comet matter is submitted. Dependence of the given result
on a mass of comet nucleus is investigated. The comparative analysis for
"evaporation sphere" radius is represented for the Sun and other stars in
case of 1P/Halley comet.
Download:
pdffile
(demo)
of work
(in russian) 
Serial ¹ 7.
Paper
code: 25.02.2008
Title:
The quantitative analysis
of Yarkovsky effect
Author:
I. Pogildyakova
Notes:
The work is made under supervising of teacher of
additional education on astronomy, the head of
astroclub " Apogee" Yu. A. Snetkova. It is
represented on Samara region conference of school
scientific research works and XV AllRussia Vernadsky
competition of youthful research works at 2008.
Abstract
In the
given work the actual problem of calculation and analysis of reaction force
of radiation for Yarkovsky effect is considered.
The force is calculated for spherical
nonrotating asteroids with use of new theoretical results
(differential spherical albedo, Bond albedo, surface temperature), received within the framework of the developed model. Feature of
the model is an application of geometrical optics laws for
particles with radius bigger some limiting value, and correct original
combination of elements classical (geometrical optics, classical mechanics)
and quantum (the quantum theory of radiation of a grey body) theory in
calculation of reaction force. Measurement of reaction force of radiation gives a unique real
possibility authentically to determine from ground observations weight and
density of small asteroids. It is important for an estimation of the
potential threat of them. The account of this
phenomenon will allow to establish probability of dangerous rapproachement
of an asteroid with our planet.
Download:
pdffile of work
(in russian),
pdffile of
presentation. 
Serial ¹ 8.
Paper
code: 26.02.2008
Title:
A
light pressure force acting on a dust particle of
comet tail
Author:
D. Kinelskaya
Notes:
The work is made under supervising of teacher of
additional education on astronomy, the head of
astroclub " Apogee" Yu. A. Snetkova. It is
represented on Samara region conference of school
scientific research works and XVII
AllRussia scientific  practical conference for the gifted schoolboys
«IntelDinastiyaAvangard 2008» at 2008. The work is
awarded with the
special diploma and the
monetary premium of
company Intel
in section "Theoretical
physics".
Abstract
In the
given work the problem of calculation and analysis of the pressure force of
Sun electromagnetic radiation acting on a spherical particle of comet tail,
corresponding mechanical potential and effective pressure is considered in
geometrical optics approximation. The rough estimated expressions for light
pressure force for spherical particle are used in the majority of works on
comet researches. Owing to the previous talk the construction of algorithm
of calculation of the specified characteristics at higher level of accuracy
is carried out in the given work. It is achieved by the account of
geometrical form of a particle, processes of reflection, refraction and
absorption of light beams by particle body. By the construction of
mechanical potential we can correctly take into account the action of
light pressure on comet tail particle in solution of its motion laws in
circumsolar space in frameworks of Lagrange or Hamilton formalisms. Research
of kinematics of comets tails will allow to receive the information on
interplanetary magnetic field, solar activity and other characteristics of
the interplanetary environment.
Download:
pdffile of work
(in russian),
pdffile of
presentation.

Serial ¹ 9.
Paper
code: 27.02.2008
Title:
A
Determination of radius of comet nucleus
Author:
A. Nazarova
Notes:
The work is made under supervising of teacher of
additional education on astronomy, the head of
astroclub " Apogee" Yu. A. Snetkova. It is
represented on Samara region conference of school
scientific research works and
AllRussia conferencecompetition «Yunior» at 2008.
Abstract
The
algorithm of calculation of comet nucleus
radius with use of new model (based on
geometrical optics method)
of interaction of solar radiation with spherical
comet nucleus is offered
in the given work. The numerical analysis
of analytical results for nucleus
radius is executed for 12 comets. It is
shown, that new numerical
results are in good agreement to
predecessors results.
These fact specifies validity of the offered
algorithm. Besides analytical expressions for geometrical
albedo and phase function of the spherical nucleus, connected with
differential scattering cross section are received.
It is shown, that geometrical albedo
strongly depends on a
refraction index of comet
nucleus medium. The new
analytical expression for heliocentric magnitude
is also used. It is more exact
because takes into
account values of phase function.
Download:
pdffile of work
(in russian),
pdffile of
presentation. 
Serial ¹ 10.
Paper
code: 28.02.2008
Title:
A
force of solar wind pressure acting on a
spherical particle of
comet tail
Author:
M. Unzhina
Notes:
The work is made under supervising of teacher of
additional education on astronomy, the head of
astroclub " Apogee" Yu. A. Snetkova. It is
represented on Samara region conference of school
scientific research works and XV AllRussia Vernadsky
competition of youthful research works at 2008.
Abstract
The precision calculation of
1) pressure force of solar wind plasma acting on spherical dust particle of
comet tail and 2) the corresponding effective pressure is made in the given
work. The given analytical results are investigated in cases of dependences
on particle radius, and its heliocentric distance. It is shown, that the
main contribution to pressure force is defined by protons. It is established,
that pressure of a solar wind does not depend on radius of a particle and
essentially decreases with growth of heliocentric distance of particle. The
comparative analysis of light and solar wind pressure for silicate particle
of comet tail (for distance = 1 àu) is represented.
The mechanical potential of solar wind pressure is constructed. The given
characteristics determine 1) the parameters playing a key role in the
description of comets evolution; 2) motion laws of particles and nucleus
being "the access code" in direct space researches of comet matter.
Download:
pdffile of work
(in russian),
pdffile of
presentation. 
