SCIENTIFIC ABSTRACT V.M. CHESUNOV - M.V. CHETKIN

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• Collection: Scientific Abstracts
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• Document Creation Date: December 30, 2016
• Document Release Date: June 19, 2000
• Sequence Number: 20
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

W I?
u, c :3 e C-17 po r at !~,no c. v t rf;

ILIE~OV V.M., kand. tekhn. nauk, dotsent; GERTSEV, V.V,, aspirant
Gas-liquid chromatography of boric acid esters. Nauch- trudy
MTILP no.29sl3l-132 164. (MIRA 1824)
1. Kafedry organicheskoy khimii, analiticheskoy I. neorganichoskoy
khimii Moskovskogo takhnologichaskogo instituta legkoy promyshlennosti.

CHESUNOV,_j!.~!k_jftpdq tekhn, nauk, doteent
Gas chrftatographv of viscous polyzwr goilltiors. Nauah. trudy MTILP
no,29LI33-135 064. (MIRA ISW
1. Kafedra neorganicheskoy i analitiehaskey khimii Hookovskogo
tekhnolcgichookogo instituta legkoy proVehlonnosti.

BARAMBOYM, ~. Kox doktor khimicheskikh nauk, prof.;.~HESUNOVAx A. 0.1
inzb.
Method of increasing the strength of thread Joints of parts
made with porous polymer wterials. Izv. v3rBe ucheb. Zara;
takh. leg. prom. no.095-102 962. (MIRA 15--10)
1. Mookovikiy tekhnologichaskiy institut legkoy promyshlennosti.
Rekmendovana kafedroy fizicheskoy i kolaoidnoy khinii.
(Boots and shoes, Rubber)

SAtffLIN. P.; CHI"AYZV, A.
Mechanizing the production of catgut. Maz.ind.SSSR 31 n0-1:
33-34 ,6o. (KLRA 13:5)
1. Xazanskiy ketgutnyy z&vod.
(Xazan--Catgut)

-7 ;Rwvma~ ..
Oi~ 17 a
I E A
.~: MUM IIM - ---- - -W-1 I .-
-f~

r 'i .1 ~

UEM/Physics - Waveguides 21 Jul 51
"Problem of Z11mloating the Reflections in Wave-
guides of Va:riable Cross Section," B. L.
Rozbdestvewkiy, D. N. Chetayev
'Tok Ak Hauk SSSR" Vol LXXIX, No 3, pp 427-430
Considers a rectangular waveguide with variable
cross section and proposes a constructive (design)
method for ellml ting reflections caused by the
inhomogeneities of its form. Shove that if a wave-
xu4A is filled vith an inh-.- gereaus medium whose
abaracteristics are connected in a definite ==Wr
v:LtA the inn. geneity of its form, then reflections
of waves of the type Hno can be completely
elIxImted. Submitted by Aced B. A. Vvede=kiy
-JA mLy 31.
21M90
Z5

CHETAYLY, D. N.
Geomagnetism
Divsertation: "Study of Unsettled Syvtom of fil"tromagnetic Fields in Nonhomogenous
Media." Cand Phys-gath Sci, Geophysics 1nat, Depaitment of PhysicomathemtIcal
Sciences, Acad Sci UiSR, Oct-Doc 1953. (Vestnik Akademii Nauk, Moscow, gar 54).
SO: SUM 213, 20 Sep 1954

~ e,

CAW d
Irrc!
e I r1 :4

USSR / Aooustios. Bound Vibrations and Waves
Abs Jour Ref Zhur - Fizika, Ho 5, 1957, No 12668
J-2
Author i Chetayev, D.J.
Inst i Geophysical Institute, Academy of Sciences, USSR
Title iEffoot of Velooity of Subsonic Stream on the Radiation Im-
pedanae of a Piston with Infinite Flange.
Orig Pub iAkust. zh., 1956, 2, No 3, 302-309
Abstraot It is show that the calculation of the acoustic impedance
of a piston vrith an infinite flange, radiating from a mD-
ving medium, can be reduced to the calculation of double
integrals. An analysis is made of the active and reactive
portion of the radiation impedance of a reotangular piston.
The results of the calculations are given in tables. The
Cl Card 1/2

CHBUYKV, D.N.
...Wmw
one theorem of electric prospecting. Izv.AN SM.Ser.goofiz. n9.4:
473-474 Ap 156. (an 9:8)
1. Akadomiya nauk LSM, Geofisichoskly Institut.
(Prospecting--Geophysical methods)

CHITA33T, D.N.
Theory of pulse soundings based on the application of direct
current In an ungrounded loop. Izv.AN SM.Ser.goofis. ne.5:
595-598 Vq 156. (UM 9-8)
1. Akadenlya, nank SSM, Goof Isicheekly institut.
(Prospecti W -Geophysical methods)
(Electric currents--Grounding)

A, 4'
AUTHOR:
TITLE:
Chetayev, D. N.
60-32-1/3
Computing Nonstabilized Electromagnetic Fields in
Nonhomogeneous Media (K raschetu neustanovJLvshikhsya
elektromagnityWkh poley v neodnorodnykh sredakh)
PERIODICAL: Trud Geofizicheskogo instituta Akademii nauk SSSR
1956' Nr 32, pp 3-25 (USSR)
ABSTRACT: The author discusses the work of A. N. Tikhonov, who
given a general method of solving problems in the pro-
pagation of nonstabilized electromagnetic fields in
bedded conductive media. The calculation of a non-
stabilized field induced by a current pulse of arbitrary
form and with a cable of any shape is redueed to a
detemination of a stabilized field when direct current
is switched into an element of the cable. Tikhonov and
Card 1/2

AUTHOR: Chetayev, D. N.
TITLE: -On_-a-`converse problem in
pecting. (Odna obratnaya
49-5-14/18
the theory of resistivity pros-
zadacha teorii elektrorazvedki).
PERIODICAL: "Izvestiya Akademii Nauk, Seriya Geofizicheskaya"
(Bulletin of the Ac.Sc., Geophysics Serie7s_,_1_75?, NO-5,
pp. 677-6?9 (U.S.S.R.)
ABSTRACT: The effect of topography on resistivity prospecting was
treated by various authors (1-6) for a number of special
cases. In the present paper a converse problem is
considered, namely, given the field function it is desired
to determine the topography. It is shovm that the
associated mathematical problem is'essentially the same as
the main converse problem of aerodynamics (8-10) i.e. the
problem of the form of the profile of a wing if the
magnitude of the velocity is known at each point of the
latter as a function of the length of arc. The difference
between them 6onsists in that in the hydrodynamic case one
deals with a closed contour. The problem for a contour
extending to infinity with a regular function W(z) was
considered by Nuzhin (11). The present problem is solved
Card 1/2 by an essentially analogous method. Using the expressions
obtained in the present paper it is possible to compute the

49-5-1.4/18
On a converse problem in the theory of resistivity pros-
pecting. (Cont.)
relief of the surface in the case of a homogeneous medium.
It is possible that a comparison of this with the real
relief could be useful in the interpretation of the data
obtained in resistivity prospecting.
There are 11 references, 8 of which are Slavic.
SUBMITTED: November 26, 1956.
ASSOCIATION: Ac.Sc. U.S.S.R. Institute of Physics of the Earth.
(Akademiya Nauk SSSR Institut Fiziki Zemli).
AVAILABLE: Library of Congress
Card 2/2

AUTHOR: Chetayev, D. N. 49-6-11/21
TITLE: Analytical interpretation of data from resistivity
prospecting on complex relief using the method of the
natural field. (Analiticheskava interpretatsiya dannykh
pri elektrorazvedke metodom yeatestvennogo polya v
usloviyakh slozhnogo rellyefa),,
FMIODICAL:
(Bul
tiva. Akademii N
c.5c., Ueopnysics beries
pp. 794-799 (U.S.S.R.)
Geofi
Laa it
N0061
ABSTRACT: The following problem is considered: given the values
of electric potential measured over a curvilinear surface,
the position of an ore deposit lying under the surface has
to be determined. As a first approximation the deposit
giving rise to the field is considered to be in effect a
dipole and a medium is taken as uniform and isotropic.
The method of solution of the inverse problem of aero-
dynamics (Tumashev et al., Refs.8 and 9) is employed in the
solution of the present problem. The solution is formulated
in such a way that given an anomaly with a well-defined
bearing, it is possible to determine the position of the ore
deposit and the direction of its polarisation. The moment
Card 1/2 of the effective dipole is also calculated. The method
46,

49-6-3-1/21
Analytical interpretation of data from resistivity prospecting
on complex relief using the method of the natural field.(Cont.)
provides an automatic check on its own applicability.
There are 2 figures and 11 references, all of which are Slavic.
SUBMITTED: January 22, 1957.
ASSOCIATION: Institute of Physics of the Earth, Ac.Sc., U.S.S.R.
(Akademiya Nauk SSSR Institut Fiziki Zemli).
AVAILABLE: Library of Congress
Card 2/2

03 Y c L/ 49-58-3-8/19
AUTHOR: Chetayev. D139.
TITLE: On Determining Thermal Coefficients by Means of the Method
of Linear Instantaneous Source (K opredeleniyu. termicheskikh
kooffitaiyontov metodom lineynogo mgnovennooo istochnika)
YERIODICAL: Izvestiya Akademii Nauk SSSR, Seriya Geofizicheskaya,
19539 Nr 3, pp 363-364 (USSR)
ABSTRACT: A method is described of calculation of the thermal con-
stants on the basis of measured results for the case of a
line source for which the calculation formulae cannot be
expressed in elementary functions. For eliminating the
basic disadvantage of the method of the instantaneous s-.)Urce,
a source is investigated which acts uniformly during a cer-
tain time interval To . It is assumed that the inflaence
of the sources themselves on the heat propagation can be dis-
re-arded as well as the influence of the finite lan-ths of
0 0
the heat source. Formulae derived and the res-oective re-
lations are plotted in the graph (Fig.1). By ---ieans of such
graphs, which need be plotted only once, it is possible to
determine the coefficient of heat conductivity, Ic , and
the coefficient of tomperaturo conductivity, a I by -.._io_~ns
Card 1/2 of simple equations, using experimental data. There is 1

49-58-3-8/19
On Determining Thermal Coefficients by Means of the Method of
Linear Instantaneous Source.
figure and 3 Russian references.
ASSOCIATION: Academy of Sciences USSR, Institute of Physics of the
Earth (Akademiya nauk SSSR, Institut Fiziki Zemli)
SUBMITTED: November 26, 1956.
AVAILABLE: Library of Congress.
Card 212

AUTHOR: 24gjaje~~D SOV/49-59-1-8/23
TITLE: The Inverse Problem in the Theory of Electrical
Prospecting of Non-conducting Seams which Emerge on the
Surface (Obratnaya zadacha teorii elektrorazvedki
neprovodyashchikh plastov, vykhodyashchikh na
poverkhnost')
PERIODICAL: Izvesti-ya Akademii Nauk SSSR, Seriya. Geofizicheskaya,
1959, Nr 1, PP 73-82 (USSR)
ABSTRACT: The author applied Tumashev and Nuzhin's method of
solution of the inverse boundary problem in aerodynamics
(Refs 3,4) to two-dimensional inverse problems in the
theory of electrical prospecting. He discussed the
effect of the surface topography on the flow of uniform
direct electric current (Ref 1) and on determination of
the position and polarisation of an ore deposit which
was represented by a linear dipole (Ref 2). The present
paper extends the work reported in Refs (1) and (2) to
electrical prospecting in the case of non-conducting
seams which emerge on the surface and which lie parallel
to topographic horizontals. The problem can be stated
Card 1/3 as follows: to find, from the values of electric current

SOV/49-59-1-8/23
The Inverse Problem in the Theory of Electrical Prospecting of
Non-conducting Seams which Emerge on the Surface
measured along an uneven surfacel the position of a
perturbing body on the assumption that it is a thin
non-conducting seam, which emerges on the surface and
which lies in a uniform medium. The author shows that
there is only one solution of this problem, i.e. only
one distribution of electric potential along the surface
satisfies a given set of actual surface conditions.
Consequently, electrical
prospecting methods which use direct current may be
applied to find more exactly the position of seams
discovered by drilling. Analytical interpretation of
the results of measurements of the el4ctric current makes
it possible to discover when this method is applied
incorrectly. If wrong assumptions are made, the
calculated surface topography does not agree with the
actual topograpkir and the mistake becomes obvious.
Card 2/3

SOV/49-59-1-8/23
The Inverse Problem in the Theory of Electrical Prospecting of
Pon-conducting Seams which Emerge on the Surface
There are 12 references, 8 of which are Soviet,
2 Japanese, 1 Italian and 1 French.
A380CIATION: Akademiya nauk 835H,Institut fiziki Zemli
(Ac. Sc., USSR, Institute of Earth Physics)
SUBMITTED: December 3, 1957
Card 3/3

CHETAUN, D.N.
Effect of the elasticity of the medium on the radiation resistance
of a piston in a screen. Akust.zhur. 5 no-4:501-503 159.
(MM 3A.-6)
1, Institut fiziki zemli imeni 01,Xu.Shmidta, Moskva.
(Sound)'

S/049/59/000/1-2/018/027
E032/E393.
AUTHOR: Chetayev, D.N.
TITLE: On o ving VWeT'-A'V'e-r e Problem in the Theory of Electro-
magnetic Sounding 7 -
PERIODICAL: Izvestiya Alcademii nauk SSSR, Seriya geofizicheskaya,
1959, Nr 12, pp 1864 - 1866 (USSR)
ABSTRACT: The algorithm of the analytical interpretation of the
data of electromagnetic sounding in the case of the
disturbances of the field caused by a vertical magnetic
dipole is described. The direct problem is considered
for a cylindrical symmetrical field with the components
Eq, B r and B z calculated from the Maxwell formula (1)
as Eqs (11), (12) and (13), respectifely. The latter
equation can be written as Eq (19) for z = 0 . The
inverse problem is considered for a given component
Bz (r,O) (Eq (19)). Thus, the function (21) is obtained
for the boundary conditions, Eq (22), which can be
utilised in Eq (23) to define the conducti-ity as a
Cardl/2 0

s/o49/59/000/12/018/027
B032/E391
on Solving the Inverse Problem in the Theory of Electromagnetic
Sounding
function of o(z) , the final form of which is given
as Eq (42).
There are 2 references, 1 of which is Soviet and 1
German.
ASSOCIATION: Akademiya naulc SSSR lnAitut fiziki. Zetitli
(Institute of Physics of the Earth, Ac.Sc.USSR) 0
SUBMITTED: June 20, 1959
Card 2/2

s/09/6o/ooo/oo4/013/018
E032/E314
AUTHOR: Chetayev, D,N.
TITLE: Determination of the Coefficient of Anisotropy and
the Dip Angle of a Uniform Anisotropic Medium From the
ICAL4,11,1r el kwjVdfW e IjaVM Vg~magnetic Field
a ad of. the u
PERIOD Izve emii na I I-V
geofizicheskaya, 196o, mo. 4, pp 617 - 619
TEXT: Consider the half-space zl-\ 0 (Fig. 1) filled with
a uniform anisotropic conducting medium having an angle of dip
a . Let the resistivity in the direction of the x, y and z
axes be ,-t (longitudinal resistivity) and j (transverse
.n
resistivity). It is jBsumed that the natural electromagnetic
field can be represented in the form of a plane wave incident V/C
normally on the half-space. Resolving this wave into two
components polarized in nratually perpendicular directions, one
can consider separately the waves in which the electric field
lies along the x and y' axes. When the electric field lies
along the x axis, the wave will be propagated in an effectively
isotropic medium having a resistivity f_~ . The problem
therefore reduces to the consideration of the case where the
Card 1/3

S/049/60/000/004/013/018
EOJ2/P3j4nisotropy and the Dip
Determination of the Coefficien b
Angle of a Uniform Anisotropic Medium
electric field is in the perpendicular direction. In this
case the field inside the conducting anisotropic half-space
will only have the components B xv E y abd R z . The
Maxwell equations in the x, y, z system attached to the
principal axes of anisotropy are then given by Eq. (1),
where the resistivity is anisotrople but the dielectric
constant and the magnetic permeability are isotropic. It
is assumed that the dielectric constant is zero,and the
displacement currents can be neglected in comparison with
conduction currents, then the volume density of charge q = 0
The Maxwell'equations will then simplify into the form given
by Eq. (3). If the displacements current are neglected not
only in the conducting medium but also (at sufficiently low
frequency) in air also, then the problem consists in the
solution of the field equations in the conducting half-space
only. The boundary conditions are such that the field must
vanish for z' tending to infinity and the normal component
of the current density must also be zero on the surface
z' = 0 . It is shown that the solution for B is of the
Card 2/3 x

s/09/6o/ooo/oo4/013/018
E032/E314
Determination of the Coefficient of Anisotropy and the Dip
Angle of a Uniform Anisotropic Medium
form of the plane wave given by Eq. (6). In fact, Eq. (6)
satisfies Eq. (5) with the wave number given by Eq. (7). The
y and z components of the current density are given by
Eq. (8) and it follows from the boundary conditions that ilz
vanishes identically. Thus the condition on the surfaces is
automatically satisfied and Eq. (6) is the solution. The
electric field is then given by Eq. (10). Finally, the
impedance is given by Eq. (13)- Measurement of this impedance,
with the electric field in the two perpendicular directions as
mentioned above, will thus yield the coefficient on anisotropy
and the dip angle. There are 1 figure and 6 references:
5 Soviet and 1 English.
ASSOCIATION: Alcademiya nauk SSSR InsLLtut fiziki Zemli
(AS SSSR Institute nf Physics of 4-u- V-rth)
SUBMITTED: July 29, 1959
Card 3/3

AUTHOR:
TITLE:
Chetayev, D. N.
4;>213
S/057/62/032/011/005/014
B100102
The field of a low frequency electric dipole situated on
the surface of a homogeneous anisatropic conducting semi-
space
PERIODICAL: Zhurnal tekhnioheskoy fisiki.,,v. 32, no. 11, 1962, 1342-1348
TEXT: An electric dipole of moment 11 exp(itzt) lies horizontally on the
interface z - 0 between a nonmagnetic conducting medium and air. The
conductivity tensor satisfies d~ x W LY yy 40 at, Oza a d.; and Cj is so
small that the displacement current can be neglected both in the
conducting medium and in the air. As in a paper of V. A. Fok (ZhRFKhO,
Ch- fiz-, 58, 356, 1926; Ann. d PhYs
,;v1179 401, 1933) the problem is
t
solved by-the help of a vector ;oten a Z(Ax, Ot Az); div
The system
!!IA. _*_!nA, _*._.PA.
oxg aV2 O's (5)
Card 1/6

V 3/057/62/032/011/005/014
The field of a low frequency,.... B104/B102
d'A
(OZ2
is set up and a solution is sought in the form
CD
A.= J&r)X(z, k)dk,
C'
A.= 1' (9),
1,(Ir)Z(z, X)dk.
in cylindrical coordinates whose z-axis passes through the dipole. With
the solution stated in this form, determination of the vector potential
is reduced to the problem of finding the indppendent functions X and Z.
For an anisotropic assispaco the formulas:
X
2, T-. V5 (15) and
Card 2/6

S/057/62/032/011/005/014
The field of a low frequency ... B1041B102
z k2 e-
(16)
are obtained whereby the solution of the problem in reduced to
quadratures. With the help of the expressions
A. (LS- k1t aF ".'F
2xks dz' 401 di3 (19),
:n-_
2--k! Jz ds 00 2n 0 (22) and
a'F _S_z S)].
_L (23)
2mal Jxdz r, ds
Card 5/6

S/057/62/032/011/005/014
The field of a low frequency B104/B102
for the potentials in which the Sommerfeld and Fok integrals
CO WX
S=IJO(Xr)e-RV"+k'
kI (17) and
CO
F= I jo (Xr) e-Ov"'
0
as well as
ri
(21)
are introduced, the electromagnetic field is obtained by curl
Card 4/6

S/057/62/032/011/005/014
The field of a low frequency B104/B102
gradl with the help of the tabulated functions. For the
purpose of geophysical investigationa, formulas
3jdly 'e-kr (I -i- kr -o- k?rl
3
and
2r3,r3
kr I
e,, ysl- v V,
(.v -kr
:E,= 311,y e
3 3
Card 5/6

S/05 62/032/011/005/014
The field of a low frequency %oo B1 04Y33102
are derived, giving the surface values of the components 3ZI EX , and Ey
The first term in these formulas corresponds to an isotropic medium with
conductivity at, and the second term is the correction for the
anisotropy.
SUBMITTED: July 17t 1961
Card 6/6

C HSTAIEV . D. N.
Now method for Bolving the principal problem of the theory of dipole
electromagnetic soundings. Geol.i geofiz. no.2:11&-122 162.
(MA 154)
1. Nagnitnaya laboratoriya AN SSSR, Moskva.
(Electromagnetic prospecting)

CHETAUJ,-Dj.
Field of a low-frequency electric dipole situated on the surface
of a uniform anisotropic oonducting half-space. Zhur. tekh. fis.
32 no.11:1342-1348 1 162. (MIRA 15til)
(Dipole sownts)

S/109/63/008/001/009/025
D266/D308
aq,
.'.kUTHOR-.
'TITLE: A method for solving the axially symmetric problems~of
the electrodynamics of,.gyrotropic media
PERIODICAL: Radiotlekhnika. i elektronika', vi 8, no. 1, 19.63, 64-72
Assumina -icit time variatiori and eliminating-the scalar
TIEXT exp,
potential by.,~he-geaeralized Lorentz condition.
di4~ A
where
Card 1/3

S/1 0 63/008/001/006/025
Phase distribution of ... D266YD308
radiation patterns do not-belong to this class the first problem
is to approximate the givens radiation pattern by functions from
We This is done by finding an approximating polynomial and multi-
M
plying it by a suitably chosen auxiliary function. The author c9lls
attention to the fact that -only the absolute value of the radiation
pattern is specified and one is free to choose the phase'distribu-
tion. It is investigated whether the number of terms in the Fourier
expansion (which always contains a finite number of terms) can be
reduced or the convergence improved by a judicious choice of the
phase distribution. The answer to both questions was found to be
negative. However, by changing the phase of the radiation pattern
the relative complexity of the phase and amplitude distribution
functions changes as well. It is suggested that the phase of the
radiation pattern be chosen in such a way as to make the amplitude
distribution function easily realizable. The mathematical condi-
tion for the existence of a,number of phase radiation patterns re-
quires that the approximating polynomial must have complex roots.
_As an example the synthesia of a cosecant radiation pattern is
qa-d 2/3

S/1 09/63/008/001/009/025
A method for solving ... D266/D308
k2(D + BAZ (17)
P C (isa TZ_
IQF_ 0
where E is the off-diagonal element of the permittivity tensor
a
and Ao = - 6(D /6r. Separating*the variables in 9 and in A z, the
partial differential equations are reduced to ordinary differen--
tial eauations with constant coefficients which can be easily' Sol-
ved. In problems concerned with waveguides filled with a*gyrotro-
pic medium a combination.of these solutions must be sought which
will.satisfy the boundary.conditions. The,application of the me-
thod is illustrated in an example where-exact integral tepresenta-.
tions are obtained for the pJtential of -the electromdgnecic.field
-magnetic: dipole located over the plane
of a vertical electric and
surfac.e of vertically polarized plasma,
SUB14ITTED: March 5, 1962-
~Card 3/3

CHETAYEV, Do No
Method for solving Odgyrzmtrical problems of the vlevh-o-
dynantics of a gyrotropic medium. Radiotakh. i siektron. 8
no.I--&4.P!72 Ja '63. (MIRA 11;--I)
(IjectrodynMicg) (Plasm(Ionized gases))

L 130 EWT(I)IM(OADIS -tEC(b)-2/kSM-2 AFFIC/ASD/ESN3/
---7ssD
AFRE ---Ft--4ftabo-~4
ACCESS Ms AP3001,339 S/0057/63/033/006/'0'754/0757
MHOR4. Chetayev, D. N.
TITLE: On a.~ipolelabove, a gyrotropia medium
SOURM: Zhurnal tekhnicheskoy fialkit v. 33p no. 6p 1963# 7 54-757
TOPIC TAGS: electromagnetic fields., eyromagnetic media., plasma
ABSTRACT:- The elect romagne ticfield of a vertically directed dipole (electri
c
or magnetic) in vacuo above the infinite plane horizontal boundaz7 of a bomo-
i geneous medium, characterized by a constant Hermitian dielectric tensor in which
the two horizontal diagonal components are equal and the mixed horizontal-
vertical components vanish, is calculated. The result is applicable to a
&vromeenetic medium and, when space dispersion may be neglected.. to a uniform
plasma. t\ The calculations are performed by. solving Maxwell I a equations for the
complex potentials by a separation of variables which leads to a solution in
the form of a Fourier-Beesel integral involving the Bessel function of zero
order. Orig. art. has: 39 formulao.-
ASSOCIATION: none
itard J/h

L 3200h-66 EXT (1) 1JP(c) _mri
A/) " _f" 4;14"
ACC NR: AP6013164 SOURCE CODE: UR/0387/66/000/004/6045/0051
AUTHOR- - Chetm4y v, D. N. 13
ORG: Institute of Physics of the Earth, AcadeTy of Sciences,SSSR (Institut fizi)li
zemli, miya nauk SSSR) i/
TITLE: A new method for the solution of electrodynamic problems in nisotropic
media
SOURCE: AN SSSR. Izvestiya. Fizika Zemli, no. 4. 1966, 45-51
TOPIC TAGS: anisotropic medium, gyrotropic. medium
ABSTRACT: Plane, homogeneous, anisotropic layers of two-axial type were investigated
by reducing the Maxwell equations to an ordinary differential equation. It was
shown that the method can be successfully applied to the solution of analogous prob-
lems in the gyrotropic media. By expressing a tensor of conductivity of an aniso-
tropic medium in matrix form, and taking into consideration the generalized Lorentz
conditions, a nonhomogeneous differential equation with constant coefficients was
obtained. Where the anisotropic. medium fills in the half-space (z>0), the equation
Card 1/2
..UDC:____550.837.6

L 32oo4-66
ACC NR: AP6013164
will give the generalized solution after the application of the Laplace transforma-
,tion. Orig. art. has: 31 formulas.
SUB CODE: 08,20/SUBM DATE: 26May65/ ORIG REr: 012/ OTH REF: 006
Card

ACC NRi AP7006058 SOURCE CODEt UR/0387/66/000/010/0048/0061
AUTHORS Chetayev, D. N.
ORGt InVMMV;3"oY~9ca of the Earth# AN SSSR (Institut fiziki zemll
AN SSSR)
TITLE: Electromagnetic potentials In layered-antsotropic media
SOURCE: AN SSSR. Izvestiya. FIziki zemli, no. 100 19669 48-61
TOPIC TAGS: electrodynamicag larentz transformation, partial derivativet
anisotropic medium
SUB CODE: 20,12
ABSTRACTs This paper gives a method for solution of electrodynamic
problems for layered-anisotropic media using normalization relations
generalizing the Lorentz condition. It Is shown that the earlier used
normalization relations derived by A. N. Tikhonov and the author are In a
definite sense the optimal generalized Lorentz conditions and are
equivalent from the point of view of the possibilities of field deter-
mination. For.both optimal conditions the author has derived general
representations of the components of the vector potentials, coinciding
with an accuracy to the gradient transformationo In both cases the com-
ponents of the potentials are expressed through four solutions of two
homogeneous equations In spiond-rdpr Partial derivatives; two solutions
are relnted by a first-order differential relation. The method is
applicaile to the solution of the new problem o! the low-frequency dipole
at the surface of a half-space, filled with a homogeneous sloping-layered
anisotropic medium. This problem corresponds to a model of medium used
Card 1/2

ACC NR, AP7006059
for Interpretation purposes in electrical prospecting of slanting
homogeneous anisotrop IC deposits. Orig. art* has$ 80 formulas. 'ripass 39,1867
i Card 2 2 UDCs 550.837.6

CTORNYEV. 11. G. Deceased Born - Dec 6, 1PC2
Died - Oct 17, 10,59
Mechanics See IM

CHETAYEV, Nikolay Gurlyevich; ROZALISKAYA, N.I., red.
(Stability of motion] Ustoichivost' dvizheniia. Jzd.3.
Moskva, Nauka, 1965. 207 p. (MIRA 18:12)

ARBUZOVI A.Ye.,, akad.; VAVIIBV, S.I., akad.j VOLIFKOVICII, S.I., akad.;
KOCHINA, P.Ya.,, akad.; LANDSJURG, G.S., akad.; LEYBENZON, L.S.,
akad.; PORM-KOSHITS, A.Ye.,, akad.; SMIRNOV, V.I., akad.; FESKIKOV,
V.G.., akad.; CHERNYAYEV,'V.I.p akad.; KAPUSTINSKIY, A.F.; KORSHAK~
V.V.; KRAVKOV, S.V.y NIKIFOROV, P.M.; PETROV, A.D.; PREDVODITELEV,
A.S.; FRISH, S.E.;,.2H.ETAYEV,-WCj.-; GWUTOV, V.K.; SHOSTAKOVSKIY, M.F.;
KUZNETSOV, I.V., red.; MIKULINSKIY, S.R., red.; MURASHOVA, N.Ya.,
tekbn.red.
[Men of Russian science; essays on prominent persons in natural
science and technology: Matbamat-Ics, mechanics, astronomy, pbysicss
chemistry] Liudi russkoi nauki; ocherki o vydaiushchikhsia deiate-
liakh estestvoynaniia i tekhniki: matematika, mekhanika, astronomiia,
fizika,, khimiia. Moskva, Gos. izd-vo firAo-matem. lit-ry, 1961,
599 P. (MIRA 14:10)
1. Chleny-korrespondenty AN SSSR (for Kapustinskiy, Korshak, Kravkov,
NikJ-forovp Petrov, Predvoditelev$ Frishp Chetayev, Cbnutov, Shootakovski-y).
(Scientists)

CHETAYEV, P. M.
32360
MWOVSKIIJ, St So I CIETAM P. M. Novyy variant Kapillyarnogo Yqetoda Dlya Izmyeryeniya
kh lzmyenyeniy Povyerkhnostvolgo NatyazhyeWa i Yego Primyenyeniye. Kolloipnyy Zhurnal,
1949, Vyp. 5o s. 359-62
SO: Letopial Zhurnallnykh Statey, Vol.

CHETAUvo P. M*
23015 Ob anowdiyakh v tooperatwwq savisizoati poverkhnostnogo natjazhaniya.
Tn*. Miarlk. lhim. - Tekbnol. rn-ta In. Kirava. vyp. 7, 1949,
C. 17-21
SO UMPISI NO. 31j, 1949

CtJF-TAI m -
0 a owl
,,ow st"W
no OAS 411W Car" at
is tbi
3

oo'l
*owl
*0
-J~
F#Ott 'mis 6.0
A New FE-1 Temp-Slare ~-Aii and P. W
fare Teo-low- (in Russian,) %- S' Uruo I of llb)l'i-
w,l Fok"(11 Khlmll O'"'m
V, g:j. j)jv. 111111, p. 1421-MM
ki'lf,niv 44 4119mill",
Allwl 01W thr v
on the -y( 0 cunt'
point of the m-ObWL-PO "n7` hic modification. A
tiltmIrt-tknal into Vdation oftif m,%v effm is Ptt~
,k] M tlKin. of the H(Plld
'"Itra in the ok it o( th- ", IUK
1.1aft, alml tlW tht%XY of nsakrular P041114nilly. 1
Is
A"-SL. ALLtINSKAL LITIENAUNk CLAIWICAVON
1" as it a -it 4 .49 a. U, a
0 0-0 0_0 e 0 e e-, 0
0 .010 a ~0' S 0. 0 L!o 0 0 0 *'* a M ~
N&MLAW
I x as a AN 4 3
Is WIN
000 0~6 0 WA. e a

CHETAYEVY P. M.
IISSR/Fhysies - Temperature
Physics - Option
Jul 49
"Characteristics of Temperature Dependence of the Refractive Index
of Light in Fluids," S. S. Urazovskiy, P. M. Chetayev, Khar1kov
Chemicotechnol Inst imeni S* M. Kirov, 2j pp
I'Dok-Ak Nauk S&W Vol LXVII, No 2
Measurements of the temperature dependence of te refractive index of
light in many substances showed clear deviations from1he linear path of
this dependence, expressed by definite breaks corresponding to points
of molecular, polymorphic conversion. Data given is considered
sufficient proof of the presened. of such conversion if liquid phases.
Submitted by Acad P. A. Rebinder 23 Apr 49.
]A 54/49T110

UM/Chemistry - Phase Conversions Dec 51
"CharActeristics of the Temperature Dependence
of Certain Thermodynamic Functions of Surface
j L4. I a of Liquids," P. 14. Chetayev, Xha Ikov
Layer
"Zhur Piz Xhie Vol XXV, No 12, PP 3-455-1459
On basis of temp dependence of surface tension
of benzene, caled tbermodynamic.-functions of its
surface layer (conen of total surface energy
surface entropy, and sp heat cond of surfacei.
Found that dependence of functions on temp =Lkes
__U 19=16
:OSSR/Cheuistry Phase Conversions Dec 51
(Coutd)
possible to establish connection between struc-
tural conversions of vol phases at phase convert.
sion points of a liquid and processes of change
of analogous jstructures occurring,in surface
layers.

I69MIEVA
,-V.G. ,
So-called solf-recovery of bone cynts resulting from Rathological
fractures* Ortope trays@ L protake 21 no, 9:30-33 S 160s
(MM 13:12)
lolz Ukminskago nauchno.-isoledovatellskogo inatituta ortopedii
i tra=&tolqgU Imeni M.I. Sitenko (dir. - chlon-korrespondent
AMN SM prof. F.P. Novachenko).
(FRACTURW) (DDNF&3--DISWI$S)

?IATSKEVICH, N.D.; PHSTA71VA, V.G.
Treatment of a cmgenital disloc4itim of the hip in nevborn
infants. T=dy Ukr. nauche - ioale inst. ortop. i travm.
no.15-.95-100 F59 (MIRA 16t12)
1. Iz Ukrainskogo naucbno-issledovatellskogo institute. ortope-
dili i travilatologii imeni prof. M.I.Sitenko (dir. - chlen-
korrespandent AMff SSSR prof. N.P.Novachenk).

emmenn-V, 0. A.
33125
HaVidenicheskiye Riaraktaristike, Maslyanykh VyIdyuchateley Tips Nkp-35 Vestnik Elektrc-
prow-sti, 1949, No 10, co 11-13
SO: Letopial Zhurnallnykh Stateys, Vol. 45, Moskva, 1949

Circuit Brea kers
Electrical Equipment-
Jun, 49
"XYPe NEP-35 High-Speed Substation Oil Breaker,"
G. A. Chetchuyev, Engr, Uralelektroapparat
Plant, 5 pp,
"Vest Elektro-Prom" Vol XXJ' no 6
Gives operating data for new type W-35
.,'breaker: rated voltage 20 - 35, rated cur-
rent 600 - 1,006 amps, interrupting capacity
,"430"000 - 750,000 kva, speed 0.08 see, cur-
~zvnt -Interrupting capacity 12,,900 amps, 1-sec
58/49T45
icity (Contd)
Jun 49
~current capacity 17,300 amps. Details con-
ABtruction. Small dimensions and weight of
"I~reaker, together with a suspension-type operat-
Ing mechanism, considerably simplify the found&-
tion required.
4W "/49T4!5

MR/kngineering - Circuit Breakers Oct 49
Electric Power
"Mchanical Properties of Type W-35 Oil., Breakers,"
G. A. Chetchuyev, Engr, "Uralelektroapparat" Plant,
2 pp
"Vest Elektro-Prom" Vol XX, No 10
Subject breakers reviously described feee: FDD-
Per Abe 58/49T4y. Present article gives their
ckaracteriatics, as obtained from type tests, which
vill e~sble users to check the breakers on reassembYy
after repairs, etc.. Includes six graphs.
153M1

The Ural Electrical Machine-building Plant 479
COV9UGE: The book contains a brief history of the construction
and development of the Ural-.-Electrical Machine-building Plant
and a detailed description of the progress achieved in designing
and building various kinds of machinery including water-wheel
generatorspa-c and d-c electrical machines, transformers, high-
voltage equipment, mercury-are rectifiers and machines for the
electrification of the national economy. Plans for the future
development of the plant and of the production of the electrical
industry ingeneral are also discussed. The book Is the seventh
issiled In the series "Iz istorli mashinostroyeniya na Urale"
(Hiftory of Machine-building in the Urals) which will contain a
total of ten books. No personalities are mentioned. There are
no references.
TABLE OF
CONTENTS.,
Foreword 3
Ch. I. Construction and Development of the Plant 5
Card 2/3

The Ural Electrical Xachine-building Plant 479
Ch. 11. Ural Water-wheel Oenerstors
Ch. III. Improvement of Electrical Machinery
Ch. IV. Development of Transformer Construction at
the Plant
Ch. V. Production of Mercury-arc Rectifiers
Ch. VI. High-voltage Systems
Ch. VII. On a Scientific Basis
Ch. VIII. Work, Study and Leisure
AVAILABLE: Library of Congress
JJP/ksv
8-5-58
15
38
60
77
96
115
121
Card 3/3

7 T I
ACC
Chctchll~fcv, G. A.; Polo' MVkin,
MG: none
T IT 12 Ax cquenching device for an oil tank
Yu-
P-
switch. Class 21, No. 184310
SOITi CE -1z obrot prom obraz tov zn, no. 15, 1966, 46-47
TOPIC TAGS: electric switch, Gk-J~C,
ABISTUCT. This Author C*rtificate presents an are quenching device for an oil tank
sl"*itch With multiple contact brea1king, an arc quenching network displaced relative to
-40 cylinder axis, a movable contact bridge, and & piDton attachment. To Increase t7ho
roliabi'lity of operation, '.he contact rods are connected witIn tho contact briddq bj
ball-and-soc'Xet joints (see Fig. 1). Disconnecting springs are located between' the
contact rods. The piston attachment is built in along the cylinder axis and controls
a reguiated support mounted at the center of the contact bridge. Hinged covers on the
exhaust.slots are provided with hydraulic dampers.
99L(!-1 2 Imcl 621.316-542-064.25-OZ7.3
V

L 09266-67,
AP 6029 864
Fic,, 1 1 contact bridge; 2 -
U
i) 1; 3 - contact
all-and-socket joint'
rods; 4 - disco-Lnecting spring;
5 4reoplated support. 6 piston
atliachement rod; 7 - Pistk attach-
ment; 8 - arc quenching network;
- hinged cover; 10 hydraulic
damper
r
Orig. art. has: I diiagram.
SUB CODE. 09, 13/ SUBM DATE: 041jay0'4
-E
1 vi .'i i 1,,J
0! Pv"
'7

L.HBTGHUYBVA. T.A. (leningrad)
-Mwff
Retroporitoneal poeudocqxma of the appendix (with su=ury in Anglish].
Arkh.pat. 19 no.5.*6446 157. (KLIRA 10s8)
1. 1z kefedr7 patologichaskoy anatowit (sav. - prof. M-A.Zekharlyev-
skaya) I Isaingradekogo meditsinskogo, iaptitute imeni aked. I.P.
Paklove
(APPMIX. neoplasms
peoudomWxom, ntroperitonsel)
(ADXNWARGINOVA, case reports
retroPeritoneal pesudovWxosm of appendix)

XITRWANOVA, Ye. I.., 0!!~ ~A, T ~~ ,
Ganerallsed lyWhopanulowtoole with atezioals of the larynx,
Vest.otorin. 20 no*291U-123 Kr4p 158. (XIVA 12:11)
1. Is kafodry bolesney ukha, gorls I no" (sav. - prof.V.P.
Undrits) I kafedry palologichaskoy anatomil (sav. - prof.
X.A.Zakhulyevsk"a) I Lealngmlskogo maditainskogo Instituts.
(HMXINIS DISIM, coimpliRma))
larynVal otenonle
(TARM stenomis
In lWgkin's din. (Rue))

BABOHINAt ;.Pt-; CHEMOWAt T.A.
Netastases from cancer of the jejw= into the brain and spiml cord
oimmlatinglabes dorealis, Sbor, trudb loon. nauclfm. ob-va nevr, i
paikh. no.6156-0 '59. (MIRA 13 s 12)
1. Iz kafedry nerv bo-lq (sav. prof. D.K. Bogorodinskiy)
.rykh kney
i kafedry patologibbeskoy anatamii (mv, - prof* M.A. Zalcl-- 'yevalaya)
1-go Leningradskoga meditsifiskogo inatitut imeni akademika I.F.
Favlova.
(JLTUNUM--CANCER) (BRAIN-MCER)
(SPINAL CORD--JWCER)

CHETCHUYEVA~_Z,,A. (Leningrad, 2p Zagorodnyy prosp.p 13, kv-34)
Ag~-eozmected changes in the venous valves of the lower extremities.
Arkh4 anat. gist.i embr. 38 no.1:63-74 Ja 6o. (MIRA 13:7)
1. Kafedra patologicheskoy anatomii Nav. - prof. M.A.?akharlyevskaya)
I Lenin skogo meditsinskogo instituta im. akad. I.P.Pavlova.
EXTRMITIES9 LOWER-BLOOD SUPPLY) (VEINS)

cdt low
Wiv~liscellaneous - Theses
Card 1/1 Pub. M - 29/31-
Authm see
TWU I Authorts-referonces on theses
I vest. mash. :10P 110-111.0 Out 54
Abstract The follMng technical theses were submitted for evaluation: 1)
11Iivv6stig&tion.c;fAhe Electrical Trestnent of Stainless Steel Pro-
pellers", by N. R. Chatirkini 2) "The'Influence of Certain Elements
of a ReversIVIM"MMIUMITIM on Its Cavitational Characteristicolk,
by I. N. Filator; and 3) "The Effect of the Rigidity of the S~-I-D
System on Vibrations during Machining", by N. G, Latyshev.
Institution :
Submitted t

1. ALANILk, 0. M. BUKH, Ya. L. BLOO, A. X. OWTUA, L. 1. DO]VAN
. z KMAIINER T. V. KMUIADZE,, V. K. KOYAVA, Ye. V. KOLOKEYETIS, V. 0. KGRIDZE-J.
I
-.1. 1.: PIVE~M, M. I. TYASTO
`:,~.-Ic Ray Effects During Magnetic Storms
- ,ort submitted for the 8th Intl. Conf. cFLi Cosmic Rays (IUPAP), Jaipur 1-adis,
Dec 1963

Chetka, W.
Technical progress in the 5-Year Plan
ODZIEZ. (Centraine Zarzady Przemyslu
i Ponczosmiczego) Lod-z.
Vol. 7, no. 3, Mar. 1956
of the fancy-goods industry. F. 77
Dziewiarskiego, Odziezoweg-,o
SOURCE: EM LC Vol. 5, no. 7, July 1956

c[j-z7y.A I W1
CHETKA, W. The production of galalith buttons; experiences from Czacbvslovakia.
P. 215. Vol. 7, no. 8, Aug. 1956. ODZIEZ. Lodz, Poland.
SOLIACS: East Europeans Accessions List (EEIAL) Vol. 6) "~O. 4--Aprjl 1057

t, 91 1"
MW t. ,.. .
CHETKA, W. The production of galalith outtons; experiences from Czechoslovikkia.
(Conclusion) p. 276. Vol- 7, no. 10, Oct. 1956. ODZIEZII, Lodz, Poland.
SUU.iCE.- East Europoan Accessions Lis,U ~'-.EAIJ vol. 61 :",-. 4--April. 1c,)57

CHETKARIZOV, M.
Popov, V., Chetkarov, 1-1 "The Specific Resistance and Piurcin- riote.-Aial of ~,oard
=.L
from Bulgarian I'llica." P-53 (GODISET.'1K, M'jiR`TIK' I 'MY-4, Vol. 47, l'o- 1, 191591
u -- - A I
51-1951/52, Sofiya.)
7
SO: Monthly List of East kxropean Accessionsp Vol. 3, No. 3 , -ibrary of Congress,
Mcrch, 1954, Uncl.

621-314.26 6 Z' -314-2~
1401. Frequenc7 multi-plir--ation b7 satarable
?v
e t.5y kk. aNa u
is give-n. flie invaTs c%f tne irequency rrui tipi iers
r
Abst. i
I z
77 r #?I,
t
r---m p f e r -q -,~r ca vI- nc, ae~-enz on size an
i zation f--t-r.
poor 4eff''ic~It'%noy.

CHM-AROV, M. ; STOIANOV, G.
Moutftc aonductivity of selenium with an admixture of iodine. p. 251.
GODISHNIK. KATERKATIKA I FIZIKA. Sofiia,, Bulgaria, Vol. 50, No. 1 1955/56
(Published 1957)
Monthly Idst of East Accession (MI) LC, Vol. 99 No. I Januar7 1960
Uhcl.

CHEWAROV, M.
------
Electric conductivity, dielectric losses and disruptive field of the
multilayer mica insulators. p. 261.
OODISHNIK. MATEHMATIKA I FIZINA. Sofiia, Bulgaria, Vol. 50, No. 1 1955/56
(Published 1957)
Monthly List of East Accession (EEAI) LC,Vol. 9 No. 1 January 1960
Uncl.

AUTHOR: Chetkarov, M. L. 57-28-5-7/36
TITLE: Concerning the Modification of the Ionization Energy in Im-
purity Semiconductors (Otnositellno izmeneniya ionizataionnoy
energii v primeanykh poluprovodnikakh)
PERIODICAL: Zhurnal Tekhnicheskoy Fiziki, 1958, Vol. 28, Nr 5, pp. 962-
-964 (USSR)
ABSTRACT: It is known, that thelionization energy for the itnlimited di-
lution of the~mpurity centers in semiconductors can be express-
e4
ed by the formula by Rydberg:
It was found, that
Wo
2L
the ionization energy decreases with an increase of thellcon-
centration of impurity centers (Refs 1-3). In the present pa-
per a new explanation of these effects is given on the basis
of the theory of thermo-electrons as proposed by Frenkelt (Ref
6). Here, a semiconductor was investigated, which exhibited
impurity centers of the donor - and accept.or type evenly di-
stributed with the concentration W. It was assumed, that the-
se impurity centers poss6se identical ionization energy W and
are distributed in such a way, that they form a lattice with
the constant N-1 in the respective medium with a dielectric
Card 1/3 constant JE. N-ISdenotes the mean distance between any two cen-

Concerning the Modification of the Ionization Energy in Im- 57-26-5-7/36
purity Semiconductors
tero A and B (figure 1). r and (N-%-r) denotes the distance of
an electron -kor hole respectively)- from A and any other
center B Using these denotations the electron
energy with respect to A can be represented as
62 1 1 2gq# //&
U(r) + 19 ). It possesses a maximum &WN w4e
NIA -r
at r N-41312. Therefore the ionization energy of th4impurity
M 2NA3
centers at this concentration will be W - Wo - 40C
If an homogenuous field Z is acting upon a valence electron
(hole), the rempoctive potential energy of th+lectron with
respect to A will eqrl -eEr hence we can rewrite (2) as
follows:
UW + eEr
G r N--JO-r
This formula possesses a maximum at the electric field
strength: + 1 and has a real meaning, if
~ri_ (N-1i -r I
2 )2
M. M
r -If the field is weak, BUO, that is to rm2~N-4/3/2
Card 2/3 m

Concerning the Modification of the Ionization Energy in Im- 57-28-5-7/36
purity Semiconductors
ASSOCIATION:
SUBMITTED:
Card 3/3
In this ease for the electric conductivity the formula is ob-
tained: 6 A exp Wa 2kT 402NO/i/E ). If the field is strong,
rm < N-fJ. The ionization energy in this case is given by:
.p( W'- _SE~
A ex 2ye 6). The ionization energy of the impurity
2kT
centers according to their concentration can be determined from
formula (6) or more exactly from n - 6/ue by measurements of
the conductivity or of the Hall constant.Formula (8) repres-
ents the law by Frenkell. It is assumed in the here given con-
clusions, that the ionization energy remains constant and that
the dielectric constant does not vary with the concentration
N of thelimpurity centers. There are 2 figures and 8 referenc-
es, 4 of which are Soviet.
Sofiyakiy fizicheakiy inatitut,Bolgariya(Sofia Physics In-
Btitute, Bulgaria)
July 22, 1957
1. Crystal structure--Analysis 2. Semiconductors--Electrical
properties

S/058/61/000/012/038/08'j
A058/Alol
AUTHOR: Chetkarov, M. L.
TITLE: Concerning photoelectret theory
PIMODICAL: Referativnyy zhurnal, Fizika, no. 12, 1961, 326, abstract 12R195
("Izv. Fiz. in-t s ANYeB", 1960, no. 8, 33-51, Bulg., Russ., Engl.
summary)
TEXT: The theory of polarization and kinetics of electric processes in
photoelectrets has been developed. It is assumed that part of the electrons
generated in conduction bands gradually fall into traps on the surface of
dielectrics, owing to which there arise a double electric layer and photoelectret
polarization. Photoelectret-polarization emf is calculated. The nascent photo-
electret polarization gradually decreases the voltage acting on the photoelectret,
and causes a decrease in density of the photopolarization current and reverse-
photodepolarization current J. If a photoelectret formed at a certain tempera-
ture is heated, part of the current carriers localized in its surface traps
recombine with the centers which created them with the result that photoeleotret-
polarization emf decreases. It is shown that j and its Initial value decrease
Card 1/2

Concerning photoelectret theory
incident to heating. It was established that
or on heat treatment. These inferences were
experimental data. There are 22 references.
S/058/61/000/012/038/083
A058/Aloi
j does not depend on temperature V-11"
found to be in good agreement with -.,
V. Ly-ubimov
[Abstracter's notet Complete translation]
Card 2/2

0 le
2/000/003/069/092
A061/A101
=0 ChetYarov, M. L.
TITLE: The effect of temperature on photoclectret state
PERTODICAL: Referativnyy zhurnal, Pizika, no. 3, 1%72, 23, abstract 3E'185
("Dokl. Bolg. 1UP, 19050, v. 13, no. 5, 515 - 518, English; Russian
summary)
T=1: The approyAmate temperature dependences obtained for the emf of pola-
rization and photodepolarization current are in fairly good agree-men'. with ex-
perimental data on the photoelectret from rhombohedral S (Nazlidakov, G., and
Kashukeyev, N. "Izv. B'11g. MI. Otd. fiz.-matem. i teldin. n. Ser. fiz.", ;/01.
1352, A~-
Y. 3, 103). The formula presented for the drop of the emf of polarization in the
dark agrees with the drop curve observed in the paper (1RZhFiz, 1957, no. 8, 20293).
V. Vakedonskiy
[Abstracterts note: Complete translation]
Card 1/1

CHETKAROV, M.L.
Kinetics of the e.m.f. of high-voltage polaripation in di-
electrics. Fiz. tver. tels, 3 no.8:2193-2196 A 161.
Ila 14:8)
BO -A -
1. Sofiyakiy wiveraitetp. V
(Polarization (E16 iricity))
(81o;jItawtive force)
(Dielectrics)

27271
S/181/61/003/008/001/034
3 4/. BI 02 /3201
AUTHOR: Chetkarov, M. L.
TITLE: Theory of photoelectrets
PERIODIOALa Fizika tverdogo telat v,3, no.8, 1961, 2197 - 2201
TEXT: The photoelectret state has been experimentally observed on sulfur
crystals as well as on other dielectric materials and semiconductors.
Not all the rules governing this phenomenon, however, have yet been
clarified theoretically. The author presents new theoretical data based
on the results of his previous investigation (FTT, III, no.8, p.2193).
It is assumed that during the illumination of a photosensitive dielectric
or of a semiconductor plate of thickness d and with dielectric constant
~gt- Corr a part of the electrons excited in the conduction band drops,
under the action of Voltage U, into surface traps with the energy level
Ws. This leads 1) to an increase of induced electric charge on the
condenser plates above the amount of electricity proportional to their
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Theory of photoelectretB S/181/61/003/008/001/034
B102/B201
size, and 2) to the appearance of volume charge and of a double layer
with the maximum thioknessAdwhich is determined by the total number of
traps that can be filled. This thickness corresponds to the polarization
capacityAC =SS/6d, where S denotes the illuminated area of the electrode.
The specific conductivity of the material changes, due to absorption of
photons, bydcr= c--~rd, where crdenotes the specific conductivity under
illumination, and O'd'is the dark conductivity under otherwise equal
conditions. Under certain conditions 0-~O so that,&-~:~w In addition,
a---d6 = aI, where I denotes the illumination intensity in w/cm 2, and
resistance R - d/c-S. Using the results of the previous investigation,
P(t) = U(1-G)f1-expL-()t1-OE-Itj is obtained for the emf of photoelectret
polarization, and j1 (t) = ai1E~~"(1-G) exp for the density of the
photopolarization current, where 1 1 denotes the illumination intensity in
case of polarization. When t - 0 and t =00, then j 1(0) = aI1E and
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3,102/B201
11 (00) - aI1E& wheref rom a and Ocan be determined. For sulfur single
crystals, 9 ranges between 0-5 and 0-7- Similar relations may also be
considered to exist for photo-depolarization. If the photoelectret is
formed at temperature To, the amount of electricity absorbed in 4cwill
be proportional to the number N of traps filled at this temperature. Then,
after a temperature increase to T, N 1 electrons of a total of N trapped
electrons will pass over into the conduction band and recombine. N 2 - N-N1
electrons remain in the traps. N 1 . A(T)exp(-W a/kT). Since N 1 - 0 for Toy
A(T0) - 0; at melting temperature T m, A(TM ) - C(T M-T0). The following
holds for the electrons remaining in the traps:
N2IN - 1 - N11N - 1 - T-TO exp --KL !M:Z- - 1 -vL, which is equal to the
T M-T0 k TmT
ratio of the emf of the photoelectret polarization for T and T 0' Thus,
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B102/B201
P(t,,T) - (1-.L)P(t, To ); J2( 0,T) - ('_0L)j2( O,TO) and 'd J2 - J2( O#TO) _j2(O IT)
-*tj2 (OJO) are found for the photo-depolarization current density. For
T~TO, oL- 0 and J,(O,To)-= JI(O,T) - aI 1E. If a dielectric is
photopolarized during the time t 1 and.is kept for some time in the dark at
the same or a higher temperature, the.residual polarization of this
photoelectret will drop exponentially with time. The results for rhombic
sulfur single crystals (We = 0.366ev) are in good agreement with
experimental data. G. Nadzhakov and V. M. Fridkin are mentioned.
There are 4 figures and 14 references: 10 Soviet-bloc and 4 non-Soviet-blor-
The two references to English-language publications read as follows-
H. Kallman, B. Rosenberg. Phys. Rev.97, 1956, 1955; B. Kurrelmeyer. Phys.
Rev-309 6931 1927;
ASSOCIATION: Sofiyakiy universitet Bolgariya (Sofia University, Bulgaria)
SUBMITTED: December 2, 1960
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L-2252
3/502;/61/CC9/001/001/007
B 125/B102
AUTHOR: Chetkarov, 191. L.
TITLY: On the kinetics of the electromotive force of high-voltage
polarization in dielectrics
SOURCE: Bulgarnka. akademiya na naukite. Fizicheski institut.
Izvestiya na Fizicheakiya insti.tut s ~.INSB. v. 9, no. 1,
1961, 5-24
'T3XT: An analytical formula for the high-voltaGe polarIzation is deduced,
and is used as a basis for explaining the vari*ous effects of the
electrical conductivity Jn dielectric crystals.. There are three Dossible
ways in which a polarization capacity can &rise: (1) the electrically
positive traps in the surface layer gradually fill up when a voltage U is
applied to the n-type dielectric. This giv Is rise to a polarization double
-layer with the additional capacity &C a n Se S/2017-0, .,,here nSis the
concentration of these traps, e is the elementary ch:..-Ce, S is the surface
area of the electrode, and is the energy level of the trap..-The
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B/503/61/009/001/001/007
On the kinetics of the... B125/B102
stationary value of the electromotive force of hiig-h-voituge polArization
increases with 4nereasing concentration of the traps. The outcome of the
exneriments performed b 'M'. F. loffe, K. D. Sinelnikov, and V.1-T.Gokhbex,,
(ZhRIMO, 58, 105, 1926~, and the diffusion of impurity atoms from the
cathode into the layer of the crystal near the electrode, can be explained
in this way. ~121) The- additional capacity for a dielectric with the
conductivity a., = e"LPp and with electrically negative traps on its surface
is given by 6C - n,-e2 S/2(10-11). p and tP denote the concentration and
the mo:bility of the holes, n; is the concentration of the traps on the
surface, (WI-11) is the energy level of this trap. In the case of mixed
n and p-type conductivities, the polarization capacity is
AC=- nsn"2S
2 tnsW'+ n;w) ~ W. (-S + ns)
livhere',N' is the width of the forbidden band. When an electric field E E and U >U the
.c C c
f ormulas
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B/50YO61 /009/001/001/()07
on the kinetics of the ... B125 B102
NO = U1.0 -0) (1- e e7-"'-4"~-'). (44~,
(45),
W 0 - 6) (1 - e
(1-0) 1 t, (46)
'2 VE- (1 - 0)(I - e-0 a )e
are valid in the place of (28), (30), and (34). The dielectric loss angle
tg a
to RCO 1 (72)
Tj --9)1 + ;jW_ -C2
0
has its maximum at the froquonoy
Op 6)2
(an= -MC-O (73)
0
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B/503/91/009/001/001/007
On the kinetics of the ... B125/B102
Y., hen 2 9(1 _ 0 ) 2 >(RC 0) 2. There are 9 figures.
ASSOCIATION: Fiziko-matemptichoski fakultet pri Sofiyakiya d"rzhaven
universitet (Division of Physics and Mathematics at the
Sofia--. State University).
SUBMITTED: October 14, 1960
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9
AU'PiIUR:
TITU,:
8/181/62/004/008/038/041
B108/B102
Chetkarov, 14. L.
Superposition of high-voltage polarization o. m. f. in di-
electrics
PB~IODICAL: Fizika tverdogo tela, v. 4, no. 8, 1962, 2279
TS-',Tt In an earlier paper (FTT, 3, 2193, 1961) the variation with time of
tho high-voltage polarization e. m. f., P( t), was established;
P(t) - UO - 4). 0 - Oxp(4(1-J40t1C)).
For this it was assumed that the polar capacity A C -xSlhd be gradually
charEed through the intrinsic resistance R - d/V-S. C /4 C = dd/d is
0
the ratio of the geometric capacity Co a eSId of a capacitor to its polar
capacity. The above relation is now generalized to.the case of repeated
Jumps of applied voltage U and electrical conductivity 6. This is done
by using the law 6f undisturbed superposition of voltages. A jump at time
t1 will mean an increase in voltage from U to U U + 4U1. With reference
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S/181/'62/004/008/038/041
Superposition of high-voltage ... BlOBIB102
to the current density, also the electric field strength will increase
fro;n E to E E + A El. In the case of d jump in conductivity, the same
holds true for T. 1f several jumps in U and Ooccur, the above formula
will contain '6ums of the type TJ + AU + '6U and tho time t in the
1 2 t
exponential function will have to bo replaced by tho sum t + t' + ... of
1
the times at which a jump occurs.
ASSOCIATIONj Sofiyskiy uniVeraitetp Bolgariya (Sofiya University, BulEaril~
SUBL:ITTEDs March 6, 1962
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GEETIM(NIS M.
................. I-
Consecutive.superposition of the electromotive force of high-
voltage polarization in rhombic sulfur, Doidady UN 16 no.5.*
481-1,84 t63.
1. Predstaxleno chl. korr. E. DzhakG7yM.

CHETKAROV, M., ROUSSEVA, V. [Ruseva, V.)
Photoelectret polarization In monocrystals Of CUS(4~5H2O
in UV light, DoklFdy BAN 17 no.2-109-112 164.
1. Submitted by Academician G.Nadjakov (Nadahakov,, G.1,
Member of the Board of Editor3, "Doklady Bolgarskoy
akademii naukff.

SOV/109-3-7-17/23
AUTHORS:Xislov, V. Ya., Sviridov, V. T., Chetkin 1.1
TITLE: A Non-Slowed Wave in the System Consisting of a Coaxial
Helix and a Centre Conductor (Nezamedlennaya volna v sisteme
I
iMaksiallno raspo-lozhennvkh spirali i tsentrallnogo provod-
nika)
PERIODICJAL: Radiotekhnika i elektronika, 1958, Vol 3, Nr 7,
pp 964-966 (USSR)
AB3TRACT: The radius of the helix is a and its windin- angle is
The radius of the centre conductor is c . It is assumed
that the helix satisfies the usual boundary conditions, while
the boundary conditions for the centre conductor are ey-mressed
by Eqs.(2) and (3), where jil is the permeability of the
centre rod, cr is its conductivity and w is the angular
frequency. By employing the above boundary conditions the
dispersion equation of the system is in the form of Eq.(4),
where 101 0.01 K, are the modified Bessel functions; k is
the wave number, is the propagation constant, and e and
'IL nre the permittivity and permeability of free s ace. if
ya4gl and yc