SCIENTIFIC ABSTRACT URUSHADZE, G.I. - URUSOV, L.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001858110005-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 14, 2001
• Sequence Number: 5
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

URUSHADZE, G.I. (Urushadze., H-I.]
Thermal conductivity of antiferromagnetics at low temperatures.
Ukr. fiz. zhur. 6 no.1:34-39 Ja-F 161. (MIRA 14:6)
1. Fiziko-tekhnicheakiy institut AN USSR, g. KharIkov.
(Magnetic materials-Thermal properties)

837~5
/056/6r)/03rj/004/028/048
B006/BO56
14.1doo
AUTHORS: Barlyukhtar, V.C., Urushadz2,, 0. 1.
_AM~
TITLEs The Theory of Relaxation
Weak Magnetic %nisotropy
PERIODICALi Zhurnal eksperimentallnoy
Vol. 38, Ho. 4, pp. 1253
Procos3es i Ferro di o1 ectrics V,ith
at Low Temperatures )~
i tooretichookoy fiziki. 1960,
- 1262
TEXT: A. k. Akhiyezer, V. Barlyakhtar, and S. Peletminakiy (P .. 1)
developed a general theo'r'y of the relaxation of the magnetic moment in
ferrodielectrics, which is based upon the fact that two kinds of inter-
action occur between the spin wavess A itrong exchange interaction and a
weak relativistic interaction (magnetic dipole interaction and inter-
action due to magnetic anisotropy). Petaila concerning these reactions
are discussed by way of introduction. Many farriteo which may be con-
sidered to be dielectrics at low temperatures, have a complex magnetic
structure, i.e. they have several magnetic sublatticea. The consequence
in that, besides the lov-frequency (activation-less) branch in the
magnetic energy spectrum also high-frequency branches (with high
.Card 1/3

83735
The Theory of Relaxation Procosse3 in Ferro- /C5 6/6,~/O 38/004/028/048
dielectrics With Nesk Magnetic Anisotropy at B(:06/BO56
Low Temperatures
activation energies) occur. The contributions of these branches to the
thermodynamic and kinetic properties are at low temperatures exponentially
small. An analysis shows that the interaction between the low-frequency
spin waves due to energy exchange between the sublattices of the same
order is similar to the relativistic interaction describing thu reciprocal
scattering of spin waves. Thus, the magnetic structure miy be neglected
when investigating the relaxation processes in ferrodielectrico with low
anisotropy. The ferrodielectrics, for which the relaxation of the magnet-
ic moment and the leveling of spin and lattice temperature is investi-
gated here, are in a weak magnetic field. Establishment of the
equilibrium of the magnetic moment with renpect to value and direction is
due to magnetic dipole interaction, with the absolute value of' the
magnetic moment coinciding as to order of magnitude with the time of
rotation of the magnetic moment toward equilibrium direction. Uso the
leveling time of spina and of the lattice are calculated. 1n an appendix
a ferrodielectric having two magnetic -ublattices is studied. Finally,
the authors thank-A. 1. Akhiyezer for his advice, and M. 1. Kaganov and
V. M. Teukernik for discussions. There are 9 referencen: 6 soviet and
Card 2/3

83735
The Theory of Relaxation Processes in Ferro- S/056/60/038/004/028/04~
dielectrics With Weak Magnetic Anisotropy at B006/B056
Low Temperatures
2 US.
ASSOCIATION# Fiziko-tekhnicheskiy institut Akadexii nauk Ukrainakoy SSH
(Institute of Physics and Technology of the Academy Of
Sciences, Ukrainskaya SSR
SUBMITTEDs November 4, 1959
Card 3/3

BARIYAlUiTAR. V.G.; URUSKAMM, G.U
Scattering of spinor waves and phonons on impurities in ferrodi-
electrics. Zhur. eksp. i teor. fiz. 39 no.2:355-361 Ag 160.
(MIRA 13:9)
1. Fiziko-telchnicheskiy institut Akademii nauk Ukrainskov SSR.
(Ferroelectric substances) (Scattering (Physice))

AUTHOR: Urushadze, C.
63767
S/056/60/039/005/020/045
B006/BO63
TITLE.- Relaxation of the Magnetic; Moment in an
Dielectric~'
I
Antiferromagnetic
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki, 1960,
Vol. 39, No. 3(9), pp. 680-685
TEXT: The present paper deals with the relaxation of the magnetic moment
in a dielectric In the special cane whore the external magnetic field and
the magnetic moment of the body are perpendicular to the crystal axis
(z-axis). Wlion a magnetic field is applied, the magnetio, moments of the
sublattices start turning into the direction of the crystal axis, and
the magnetic moment existing at the instant of application disappears.
The author now wanted to determine the relaxation time of this process.
As the non-equilibrium value of this magnetic moment depends on the number
of spin waves with a momentum t - 0, the relaxation time of the magnetic
moment, found by the author, determines the order of magnitude of the
line width of the homogeneous antiferromagnetic resonance. As the exchange
Card 113

8 6
Relaxation of the Magnetic Moment In an 3/?576t~60/039/003/020/045
Antiferromagnetic Dielectric B006/BO63
interaction Hamiltonian commutes with the total magnetic moment of the
body, It is not able to change the occurring non-equilibrium magnetic
moment. The magnetic moment of the body is changed as a result of the
weak relativistic interaction. If the dispersion law of spin waves in
antiferromagnetic dielectrics
F_ 1,2(k) - AMf2y[P + (a - a12 )k I + (n/y)sizi Qj (where 9, is the
angle between the z-axis and the wave vector ~; the upper and the lower
signs correspond to the two energy branches whose distance is AE'V pM;
a, a12' and y are exchange interaction constants; 0 is the magnetic
anisotropy constant; M Is the magnetic moment for saturation in the sub-
lattice; p is the Bohr magneton) is valid, one obtains the following
P2U294i
relation: 0 '_ (J - 10J(T). Here, E /T,
'to - 4n573a6(a-a 12 )3T`n' 0
VM/T, and J(T) is a complex expression which is defined by (16).
For T ~>(PpMQc )112 (which corresponds to > OD and 9C Q 0) and
MCI (Lis Y-A, AS -,c T
2. Charac terim ties for W A b ) of forced oiscUlationa 44
Card 2/ 5

Linear Oscillat-. -., Theon. -,;chronoi.- Machines SOV/4-038
3. Conditions of --d- damping torque 46
4. Analysis of stator current 48
5. Investigation based on calculation and experiment 52
6. Technical and economic expediency of industrial utilization
of the netliod. of artificial daimping 61
Ch. 111. Free Oscillation Analysis of Synchronous Machine Rotor,
Taking Into Account Artificial Damping 6T
1. Stability criterion and qualitative investigation of the process 69
2. Determining 1(p) polynomial roots on the basis of torque
frequency characteristic X(p) T3
3. Determination of c 1 and c factors based. on given operating
-
i
conlitions of dampie
d osci
lations T8
4. Physical criterion of damping quality T9
5. Vector diagram of oscillation 80
6. Analysis of stator current daring fluctuations,, with
artificial damping taken into account 84
Card 3/5

Linear Oscillation Theory of Synchronous Machines EIOV/4038
7. Stability conditions for M 80 < 0 (region of artificlal
stability) 86
8. Comparative stability calculations and determination of
characteristic equation roots 90
9. Stability investigation by mans of frequency methods 93
10. Investigation of characteristic polynomial roots based on
torque characteristic X(P) 95
3-1. Accounting for resistance effect of stator vinding during
stability investigation 96
12. Experimental investigation data concerning free oscillations
in the presence of excitation control 98
Ch. IV. 14mits of Linear ft-kation Applicability 100
1. Foundation and presentation of the problem 100
2. Investigation of the nonlinear problem of rotor oscillation 103
3. Limit deviations of e angle depending on E), in
4. Tdwit departure angles of E)z rotor and dyn=dc stability margins 115
Card 4/ 5

Linear Oscillati-3-a Theory of :iynchronou~ Aft-hines SOV/4038
Ch. V. An"is of Conditions Under Which Oscillations Arise
1. Rotor movezent, during sudden three-phase short circuit
2. Oscillating rotor no. sent under post-breakdovn operating
conditions in the presence of linearly increasing and
constant braking nts
Ch. VI. Characteristics of Asynchronous Operating Conditions
During Constant Sliding
1. Exact method
2. Approximate methods
Approximate accounting for effect of stator winding
resistance in the region of sawL11 slidir4p
4. Selecting diniensions of a squirrel cage starter
5. Cyclic excitation under asynchronous operating conditions
Conclusion
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AVA17AME: Library of Congress
Card 5/5
NN/rIM/lass
B-18-60
3.17
119
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139
U0
143
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(Electric machinery)

URUSOV,-- I.D.s doktor tekhn.nauk; FEDULOV, L.Y., inzh.; 1--EDOIROV, V.F.,
1-1--, Ii,71.
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no.7:13-18 J1 161. (MIRA 34:9)
(Electric machinery, Synchronous)

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(-Ijctric machinery inditstry)

KAsHARSKIY, Engmar Grigorlyevich; SAFIULLINA, Roza Khali-1ovna;-9HUSD3L,-
lzmail Dzhankhot^~4"'rv; SUSHKOVA, T.I., red. izd-va; GALIGANOVA,
.M., tekhn. red.
(Theoretical and methodological problems conaerning the design
of a series of large synchronous machines]Naucbno-metodicheskie
voprosy sozdaniia serli krupmykh sinkhronrqkh Mashin. Pod red.
I.D.Urusova. Moskva, Izd-vo Akad. nauk SSSR, 1962. 153 p.
(MIRA 15:12)
(Electric machinery, Synchronous)

11HUSOV, 1,P-, d0kLor tph-lin.tinuk; .11AFRILLINA, R.Kh., inzh.
Almly fit' 1,110 #41111- ato'llorill'y fit' n t1tiviorl III' tilt-go flytiolivillimill M04011110(s
11"11111 rili W, I tilt Cl. I %-,, III.. ~~ I I . - ,, " r 4 1.
( tot It A T'.. ~t I
I 0~ i . I , I , ', I - .4 1 ~, I., , .,4., 1 1 il, I - I 1 4, t . - ii, 1. 14 1 .,1 W -

'MM-,
ACC NRt Ap--
6025
865
AUTI"R: Urusov
(Doctor or t,c SOLTRCE CODE: UR10292,1661
000
ORO: n /005/000 -20/,v-,,-
TZ one hn'cal sciences), 0006
TLE: Steady-s
tate Processes in a
SOU"'I Elektrotokhnika, chronous Onerator" 5
is onerator
suPPlying a
no- 5, 196,
TOPZ TAGS: syncb-ronous generator, 6., 2-6 Pulsed load
ABS7RACT: operation Pulsed load
04PA01tor 10 r-f A a
in 41A,.) vtIoll
-vz"" 1-1111,wril 1 M'
rl,, x ~fj I 1y )i ', v I t1k,
I *,.,. , I
it
retsenzent; CvSYjIUM.!hU".'Ap L.G., I-ed.
(Theory of metalworking Ijy pre,-,.~mrej Teoriia obral.~otki Inetal-
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1. Vseso)ruznyy zaochnyy politekhnicheskiy institut (for Urusov).

GURBAN, V.Tu., insh.; MACH, V.D., insh.; UMJSOV, K.V., inzh.
Ainged joints of metal piping for brdraulle drives
nxcavatoro. Strol.1 dor.manhinnotr. 4 nn.8t2l-21
041w~
j 0 . - ., 0 , 0. 4 , . t, - .. -I - 1 4, . . , 4 1 ~ t ~ " , f I I , I ; I . . . I
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Ag '1~9.

OUMW, Vkviliy Tustinovich; TKACH, Vesilly Denisovich; W�qljL Konstantin
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tIRUSOVP L., FAYNGAR, M., TISHINA, A., XIM YEFROMOIA, L.
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SO: Goryuchiye Slantay #1934-35, TN .971
G .74

Tza[="~ ; !-: -7-1, ", -
rconorucal construction of =111 vertical h:.rdrc,7---nera-Lcr!:. L,. -3
(Etrojnoelek"rotec~-..,,Ic',-..f Csso--is. "ol . 3. no. 1,Ur-'
- I ~- -. 11 j-
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I IT, I I I i 0 V ,t I ,t 1 .
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SO: LFTOPISI M. -2-1, 1949