SCIENTIFIC ABSTRACT KOVARSKIY, M. - KOVATS, E.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000825620015-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Sequence Number: 15
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

XQWVICH, I.; KOVARSKIY, M.
Increase the quality requirements for signal contacte. Pron.ener 14
no.2:51-52 F '59. (MIRA 12:31,
1'. GlavWy energetik Volokbovskogo alyuminiyevogo zavoda (for Naydovich).
?. . Naebal'nik tsekha setey4i podatantaii volokbovokogo alyuminiyevogo
zavoda (-for Kovarskiy); "
(Electric contactors)

22(5) PHASH,I BOOK EXPLOITATION SOV/2381
Kovarskiy., Mikhail Savellyevich
Oplata truda na predpriyatiyakh chernoy metallurgii (Wages in Ferrous
Metallurgy Plants) [Moscow] Profizdat., 1958. 94 p. 2,200 copies
printed.
Ed.: V.V. Novospaoskly; Tech, Ed.: S.I. Rakov.
PURPOSE: The book Is intended for trade-union committee workers~
members of plant, mine, and shop wage committeesp and trade union-
members of mine., metallurgicalp pipe-rolling, and by-product cok-
Ang plants.
COMAGE: This book-disausses problems related to work scheduling in
connection with.tlie reduced working day and new wage structure for
workers , foremen;and engineering, technical and service personnel
inAron and steel mills. The six-hour working day for personnel
working underground and the seven-hour day for workers engaged in
C ard 1/5

KOVARSM, M. S.; BARAN, N. A.; BYC11KOV) 1. Ya.; ZIMOV, G. I.
Introduction to Chapter Dealing With the Prevention of CormMicable Diseases wid
the General Purpose of Organizing Epideraic-Control Work, PP 775-773 of Sbornik
Vazhneyshikh Ofitsie.11nykh Materialoy po Sanitarr*rm i Prot ivo -L~pidemicheskin, Voprosam
(Collection of the Most Important Official Materials on Sanitation and Epidemic-
Control Problems), second edition, Medgiz, Moscow, 1949, 1206 -DP, 2 Vol.

XOVARSKIY, M. S.
All Russian planning-thematic conference on commmal hygiene.
Gig. sanit., Moskva no-5:52-56 May 1951. (CIAL 21:1)

KOVARSKIY1 M. S.
Public Health - Congresses
All-TTInion conference on coordination of plans for scientific and research work in the
field of communal hygiene for 1952. Gig i. san. no. 3, 1952.
Monthly List of Russian Accessions, Library of Congress, AugU3t 1952. UNCLASSIFIED.

Subject USSR/Medicine AID P - 3911
Card 1/1 Pub. 37 - 15/21
Authors Golldberg, M. S., Kand. Med. Sci., M. S. Kovarskiy-,
Kand. Med. Sci., L. I. Mats, Prof., N. A. Ruffell,
Kand. Biol. Scl.
Title All-Union Conference on Problems of the Hygiene of
Atmospheric Air and Water, and Sanitation
Bacteriology
Periodical : Gig, i. san., 12, 45-47, D 1955
Abstract : Discusses briefly the reports on various problems
presented at the Conference in Moscow (May 16-20,
1955) organized by the Institute of General and
Municipal Hygiene, Acad. Med. Sci., USSR.
Institution : None
Submitted : No date

ALEKSANYAN, A.B., prof.; BEZDE3,'EZFIIYKH 1.S., doktor med. nauk;
BELYAKOV, V.D., doktor med. rauk; BESS-IMN-1-Y, B.S., do),.t.
med. nauk; VASIUMOV, V.I.,, prof.; GRCMASHEVSKIY, L.V._
prof.; YELKIN, I.I., prof.; Z11DAEOV, V.M.,, prof.;
Z11MAYEVA, Z.M., kand. biol. nauk; j~O-V-AR-SKJ1,...M.S-., kand.
med. nauk; NALBOKOV, V.A., prof.; 11OVOGOiMDS1UYJk, E.M.,
prof.; PAVLOVSKIY, Ye.N., akademik,* PETHISFCIMETA, P.A.,
prof.; PERVOMAYSKIY, G.S.) prof.; POGODBIA, L.N.; ROGOZIN,
I.I., prof.; SUKHOVA, M.N., doktor biol. nauk; GTIASOVNIKOV,
A.A., kand. med. nauk; SHX,'ROV, I.1., prof.; 51URABURA,
B.L.0 prof.; YASHKUL', V.K., kand. mod. nauk;
ZliUKOV-VF.REZIINIKOV, N.N., prof., otv. rod.; DOLDYRT11, T.I.,
Frof., red.; ZASURHIN, D.N., doktor biol. nauk, red.;
KALINA, G.P., red.
[Multivolume manual on the microbiology, chnical aspects
and epidemiology of communicable diseases] Mnogotomnoe ru-
kovodstvo po ni3crobiologii, klinike J- opidemiologii infek-
tsionnykh boloznoi, Moskva, 1,1oditsina. VQ1.5. 1965.
548 p. (MI11A 18:3)
1. Deystvitelinyy chlen A~UJ SSSR (for Aleksa.-*ran,
Gromashevskiy, Zhdanov, Zhukov-Verezhnikov). 2. '~hlep-
korrespondent ANIN S,17.51 (for Rogozin, Boldyrev).

GNUSIN, N. ~- 11-11
Distribution of electrically deposited metals alcng the height
of the rough layer. 17zv. SO AN SSSR noo 10, Ser. takhe nauk
no. 3:154,-157 165 (MIRA 19t1)
1. Institut fiz1ko4.himicheskikh osnov pererabotki minerallnogo
syrlya, Novosibirsk. Submitted March 9. 1965.

KCIVAF--3KlY- N.Y,3.; GITTISIN,
Apprc,;-Iv.at,e evaluation iDf truct ssurfw~e cl,
bry the profile recordirg 21ash,h.-Tiet.
1.
.,%-r -9
. ya `Ibirsk,~ C,
'o otd(.1 n'Ya lll~

GNUSIN$ N.P.; KOVARSKIY, Mae; FEDOTIYEV, N,P,
Roughness and polarization curves in the eleatrodeposition
of copper from acid sulfate W-utions, Zhurspriklekhima 38
tiooll:2464-2469 N 165* (MIRA 18sl2)
I, Submitted December 4, 1964s

GNUSINY N.P.; KOVARSKIY, N.Ya,,
Di-strIbixtion of 6leutrodepoaited IrCt.ULS al.Cllr, th6
of a rouph layer. Zliurj~z,lzhivi. 30, no,IM1,61-256" 0 165.
(,'-I]'RA :L8.-12)
I., Novosibirskly khtiaikc-matallurgicheskiy institut, Submitted
~U~y 30, 1964.

KOVARSK17X, V.A., Mladshiy nauchVy sotrudaik
Composition of mixed feeds supplementing corme Zhivotnovodstvo 24
nQ& 9;52-54 S 162. (MIRA 15:12)
1i YbIdvaskiy muchno-issledovatellakiy institut zhi-v6tnovodstva i
veterinar-ii, (Feeds)

Cat~~gcry:USSR/So"lid State Ehysics - Solid state theory. Geometric crystallography E-2
Abs Jour : Ref 2hur - Fizika, No 1-- 1957,No 1049
Aut4or :Kovarskiy, V.A.
Title : Th ia-M-n-911Tons of Electrons under the Influence of Acoustic Oscillations
of the Crystal Lattice.
Orig Pub :Uch. zap. Kishinevsk. un-ta, 1955, 17, 185-195
Abstract :The author calculates the probability of a radiationless transition of a
bound electron upon interaction witYacoustic oscillations of the lattice
of an ion crystal. The probability of capture of,a fast electron by an
F center is computed.
Card 1/1

K0 Y
,j Y. 4,
AUTHOR: Kovarskiy, V.A.
56-6-19/47
TITLE: Nonradiative -Recombination of Electrons in the Impurity Centers in the
K-Type of Germanium (Bezjzluchatel'naya. rekombinatsiya elektronov na
primesnykh tsentrakh v germanii N-tipa)
PERIODICAL: Zhurnal Eksperimentallnoy i Teoreticheskoy Fiziki, 1957, Vol. 33,
Fr 6, pp. 1445-1453 (USSR)
ABSTRACTt Theoretically the radiationless "phonon" recombination of current
carriers in the foreign centers in N-germanium at helium temperatures
is dealt with by the following chapters:
1:~ Energy levels and quantum states of the systerm.
2 Radiationless recombination of a "condensorP in a Coulomb center.
The interaction between an electron and the acoustic oscillations of
the lattice is determined and fixed by the method of successive
formation of the diagonal form of the initial Hamiltonian by hcmo-
geneous transformation. In oomputation the tensor character of the
effective mass of the current carrier is taken into aLocowit. Further-
more, the general expression for the deformation potential is not
disregarded. There are 18 references, 8 of which are Slavic.
Z/
Z~1'
7 -

KOI%RSKTY, V. A.: Ma~ter Phys-Nlath Sci (diss) -- "i-rivestigation of the theory
of impurity diffusion and of non-radiation recombination of electrons in semi-
concluctors". Kiev, 1958- 1-5 pp (Acad Sci Mm7 SSRI Inst of the Physics o-f
0
Metals), 175 COPICS (KL: NO ', 1959, 124)

AUTHORt Kovarskiy. VA. SOV/51-5-2-26/26
TITLEs The Theory of Radiationless TransAions in an F-Centre
-(K teoril bazyzluchatelinykh perekhodov v F-tsentre)
MERI OD I GAL Optika i Spektroskopiya, 1968, Vol 5, Wr 2, pp 222-224 (USSR)
ABSTPAGT: The author extends to higher teLaperatares his own theory (Ref 7)
of radiationless transitions in F-centres in allmll-halide crystals,
in which the potential energy of the electron-phonon nteraction acts
as a perturbation. He deduces a value of 5.55 x 10itsec-1 for the
frequency multiplier (PO) in the exprassion for the probability of
thermal ionization of an F-cantre in NaCl. This value agrees well
with the experimental result obtained by Farfianovich (6.31 x 1011:600-1).
In the study of thermal stimulation or non-activated KaGl (Ref 1)
the calculated values of the frequency multifliers P. for K01 and KI
are given as 2.38 x 1014 and .3.45 x 1614sec- (Table 2). The author
Card 1/2

PERLIN,, Yu-Ye-j.-AqARSMY, V.A.
Theory of impurity-sensitized scattering of slow polarons. Fiz.tver,
tela 3 no,4:1031-1034 Ap 161., (MIRA 14:4)
1, Kishinevskiy gosudarstvennyy universitet i Kishinevskiy sellsko-
khozyaystvennyy institut.
(Electrons-Scattering) (Color centers)

baery

B/1 OY62/004/oo6/040/054
BIOB BI 38
AUTHOR: Kovarskiyj V. A.
TITLE: Theory of radiationless transitions in "non-condonian"
approximation. Low temperatures
PERIODICAL: Fizika tverdogo tela, v- 4, no. 6, 1962, 1636-1648
TEXT: Using perturbation theory, the author obtains, in adiabatic
approximation, the wave functions of a localized electron in a crystal in
the form of a convolute series in terms of nuclear variables. Near the
point of intersection of the adiabatic'potentials, the dependence of the
electron matrix element on the coordinates of the nuclei in the lattice
has a resonance character1 A general expression for the probability of
radiationless transition at low temperatures is found with the aid of
"negative ordering" of exponents (M. Lax. Journ. Chem'. Phys., 20, 17529
1952). It is noted that the formulae of K. Huang and A. Rhys (Proc. Roy-
Soc., A204, 406, 1950) are considerably changed if approximation is
performed beyond the "condon approximation". This fact has to be taken
into account when theory and experiment are compared. There is I figure4
Card 1/2

S~13812
~62/004/011/021/049'
B104/BI02
AUTHORS: Kovarskiy, V. A., and Sinyavskiy, E. P.
TITLEs The theory of nonradiative transitions in crystals in "non-
Condon" approximation. High temperatures
PERIODICALt Fizika tverdogo tela,.v. 4, no. 11, 1962, 3202 - 3207
TEXTt The object here is to ext'end to high-temperatures the theory of non-
radiative transitions in localized centers of crystals at low temperatures
developed in a previous paper (V. A. Kovarskiy, FTTP 4, 6, 1962). For high
temperatures it is important to consider resonance effects that can arise
through the possible intersection of the adiabatic potentials. From the
electron wavefunction
Q1 [P.; t (Q)]; Q. = q.
where (Q) C2 EPO
top
XV.'pQX r
4 4(
M - W
Card 2/3

=zssioii m: A2013535 s/bl81/6Vbo6/bo2/b636/b637
AWHORS: Kovarskiy, V. A.; SinYavskiYj, El. F.
TITLE: The theory of nonradiativo transitions in a "non Condon" approximation
SOUME: Fizilca tvordogo telaj v. 6,, no., 2. 19642 636-637
TOPIC TAGS: nonradiative transition,, Condon approximation) non Condon approxima-
tion., thermal transition
ABSTRACT: Beginning i-tith a relationship between the Condon approximation and the
non-Condon approximation,
W
~jf:- 2p) = IMOJI s - 2p) 11F,. (0).
hc[,C'p'
the authors consider the function r~ka(G) and the problem of dotormining the nx-
panded functions of 0. Until recently it had not been possible to evaluate thid,
but corVuters can now be used. The authors have deteritLined values for this
function for different types of crystals. Deviations of the funot:L.i Fta(Q) from
unity (on the lover side) are related to the fact.that nonradiative transitions
take place at low temparatures.at point3 somewhat below the intersection of
Card 1/2

Acmsiou int: AM13535
adUlbatic potentials. Departure from the Condon approximation leads to deep traps
of the second and third order. Regardless of the choico of model for a local
center,, the probability of nonradiative, transitions in a non-Condon approximation
will be about ('~s/j,)2 tins greater than the probability evaluated by the Condon
approximation, Orig, &rt* has 3 1 table and 8 f ornulase
ASSOCIATION t Institut fiziki i matematiki AN Molde SSRa KiAhUw (Institute of
Physics and Hathematios AN Hold* SSR)
SUM=TlDt O9Aug63 DATE ACQs 031-tar64 =Lt 00
SUB CODE s EC, SS NO REP SOV: 003 OTHER2 002
Card 2/2

ACCLSSION NRI A019675 8/0181/64/006/003/0962/0964
AUTHORt Kovarskiy., V* A.
TITLEt Retardation of the recombination rate of current carriers in a magnetic
rie2A
SOUWEt Mike, tverdogo tolaj ve 6) not 3) 1964; 962-9611
TOPIC TAGSt semiconductor band structure., impurity center., semiconductor
conductivity) recombination,, semiconductor carrier lifetime
ABVIRACTs From the phenomenological recombination theory of S. 1, Pekar
(Isaledovardya po eloktropnoy teoriya kristallovp GITTLj, 14,, 1951)j, a lldiffusioO
approiimation may be made,, according to which the recombination factor of elec-
trons at positively ofiarged centers is determined through the diffusion coeffi,
ciente Since the diffusion changes in a magnetic field) it is important to
determine how this change affects the lifetime of the carrier a:A. henco$ the
recombination rate of the electron bande*.. From the "diffusiond approximation,#
I the author daternines the Wetima of ouzTmt carriers to be
Card 113

ACCESSION NR: AP4041720 S/0181/64/006/097/2'131/2145
AUTHORS: KOvarskiy, V. A.; Chaykovskiy, I. A.; Sinyavrkiy, E. P.
TITLE: Quantum-kinetic equations for processes with nonradiative
recombination
SOURCE: Fizika tve rdogo tela, v. 6, no. 7, 1964, 2131-2145
TOPIC TAGS: recombination coefficient, quantum,statistics, kinetic
theory, phonon, polaron, nonradiative recombination
ABSTRACT: Several reasons fox the inadequacy of the standard
kinetic-equation formalism to non-optical transitions between dis-
crete spectnim. states are pointed out. The authors then propose to
describe the processes accompanying multi-phonon nonradiative com-
bination by ri-teans of a system of integral quantum-kinetic equations
based on *the formalism of the quantum density matrix, a formalism
in whicb. the quantum-mechanical and statistical calculation stages
Card .1/3

.ACCESSION NR: AP4041720
are combinod. The method used is essentially that of Kubo (J. Phys.
Soc. Japan, v. 12, 570, 1957). A graph representation is obtained
for the recombination coefficients.with the aid of the technique
of Konstantinov and Perell (ZhETF v. 39, 197, 1960), modified by
Lang and Firsov (ZhETF v. 43, 1843, 1962) to cover multi-phonon
jumps in the case of low polaron mobility. The free relaxation
of the band carriers, which are in quasi-equilibrium with.the
crystal lattice at the initial instant of time, is considered. A
criterion is considered for the applicability of perturbation theory
to the theory of mult~phonon nonradiative transitions. "The authors
thank Yu. A. Firsov and I. G. Lang for valuable information in con-
nection with the computation procedure, and also A. I. Ansel'm
and Yu. Ye. Perlin for a discussion of the calculation of the re-
combination coefficients*" Orige art. hast 5 figures and 76 for-.
.mulas#
ASSOCIATIONs Xnatitut fiziki i Matematiki AN Molms Kishinev Unati-
Card 2/3

,ACCESSION NR: AP4041720
tute of Physics and Mathematics, AN Moism)
!SUBMITTED: 27Dec63 ENCL.- 00
'SUB CODE: GP M REF SOV: 009 OTHER: 002
card

KWARSKIY, V.A.; WSFALENKO, V.A.
Thermodynamic theory of perturbation for a local center. Izv.
AN Mold. SSR no.5:47-59 '62. (MIRA 18-3)

vw~
3-9
Generalt
SOURCE i kzlks

. KGVARSKIY, V.A.
9-matrix mathod.in the theory of ~adlatjonlesn triuisitions
in electronic shells of molecules. Part 2. Teoret. i eksper.
khim. 1 no. 5:683-687 S*-O 165 (MIPA 19 11)
1. Thstitut prikladnoy fiziki Ali' Moldavskoy SSR,- Kishinev.
SuInitted July 5, 1965.

't-7

1~
KOV'ARSKIYI IYAVSKIY, E.P.
-I-,------- SIh
I
Meory of radiationleas multiphonan transitions in the electronic
shells of molecules* Teoret. i ekaper. khim. 1 no. 5:633-641
S-0 165 (MIRA -19.-l)
1. Institut prikladnoy fiziki AN Moldavskoy SSR, Kishinev.
,%*tmitted July 8. 1965.

L 31493-66 EWT (.1 )/r_ IJP (c)
Acc NR: Ap6ol3o22 SOURCE CODE: UR/0051/66/020/004/0657/0660
AWHOR: Perlin, Yu. Ye.; ~oyarskiyp V. A.4, Tsukerblat,, B. S. 50
ORG: none 5
TITLE: Contribution to the theory of marW-phonon nonradiative transitions between.
local states of different multiplicity. Is
SOURCE: Optika i spektroskqpiyv~, Ye 20) no. 4) 199, 657-660
TOPIC TAGS: nonradiative transition, spin orbit interaction, phonon interaction,
electron interaction 5'A*AP-Sk:FrEin
AIBSrL?ACT: The authors analyze many-phonon nonradiative translons between levels'
of different multi'plicity within the framework of the adiabatic approximation.
The 61ectron-phonoWqnteraction is assumed to be small compared with the spin-
orbit interaction, and the non~-adiabaticity operator is treated as the perturbs-
tion, using a method described by the authors elsewhere (mv v. 4, 1936, :L962;
Usp, fiz. nauk v. 80, 553, 1963). Possible mechanisms of many-phonon transitions
are discussed, and a general formula is obtained-for the probability of nonradi-
ative transition with spin flip due to the spin-orbit interaction. The upper
limiting case,, when the spin-orbit interaction is small corkywed with the electron.
Card 1/2. UDC: 535-330: 548.0

L 314193-~6 1
Ace NR: Ap6oi3o22
phonon interaction is considered in detail. The matrix element for the spin-orbit
interaction is then regarded as the perturbation. Different expressions for the
nonradiative transition are then obtained
,# depending on wbether the electronic
part of the matrix element of this transition vanishes or not. Orig. art. has:
17 formulas.
SUB CODE: 20/ SUBMnATE:. 14Deca/ ORIG RU: 004/ OTH RU: 002
Card 2/2 tnc,

ACC NRI AR6017245 SOURCE CODE: uR/0058/65/000/012/DO39/DO39
AUTHO R: Kovaregy, V. A.
TITIX: Magneto oscillatory effect on local centers of crystals
SOURCE: Ret. zh. Fizika, Abs. lM32T
REP SOURCE: Tr. Komis. po spektroskopii. AN SSSR, t. 3, vyP. 1, 1964, 412-419
TOPXC TAGS.- photoelectric offtat, light polarization, &UW*tic effect, oscillation,
optic center
ABSTRACT: The possibility is considered ofoacillation of the photoelectric absorp-
tion coefficient of polarized light by local centers of a crysial in a strong magneti,
field. The experimental observation of the effect at low temperatures is determined
by the minimum concentration of the local centers at which a distinct measurement of
the absorption coefficient in possible, but the Impurity scattering of the band elec-
trons still does not destroy the Landau level structure. Conditions of observing the
effect in several crystals ar* discussed.
SM CODE: 20
, , 11 A

-AA5Q;&6 MIT(I)d TJP(c) AT
ACC_ ~,
R6019906' SOURCE CODE: UR/0275/6"/000/002
/B002/BOO2
w ;
AUTHOR: Kovarskiy, V. A.; Vitiu, Ye. V. e)
TITLE: The theory of generation-recombination fluctuations in sem:
conductors
SOURCE: Ref zh. Blektronika i yeye primeneniye, Abs. 2B15
REF SOURCE: Bul. Akad. Shtiintse RSS Dlold.,*Izv. AN MoldSSR. Ser.
fiz.-tekh. i matem. n., no. 12, 1964, 44-50
TOPIC TAGS: semiconductor, semiconductor carrier, noise genera
orv '
ABSTRACT: The authors develop a the r of the~spectral density of
generation-recombination noise in semiconductors in the case of a
single-phonon mechanism of the cap't-ure of a--c-Fa-r-ge carrier by an
impurity center and the ejection of the charge carrier from the impurit
center into the band. [Translation of abstract] Del
SUB CODE: 20/ SUBM DATE: none/
card I A p

__ ATOMIC - ~ . 8%1kE-C0bE.__
ACC NRI MVWW1651boo/0001004
Auziom Vitiu, Yq, Y ; KmamrsMx, Y. A..; Q'_Tw_aV8XVLA- _F.
ORG: none
TITIZ: Quantum kinetic equations for processes with multiphonon transitions. 7he
Green's function method
soum: AN MoldSSR- Institut priklaftM fiziki. Teoretichuskiye I eksperimental'rWye
issledova_F1XMz1cheskikh svoystv poluprovodnikm7kh materialov I drugikh kriatallow
(Theoretical and experimental studies on Physical properties of semiconductor materi-
als and other crystals). Kishinsvp Isd-vo YArtys MoldoverWaske,, 196% 41-56
TOPIC TAGS: quantum statistics., Green function., kinetic equation., recombination co-
efficienty carrier scattering
ABSTRACT: The purpose of the investigation was to develop the formalism of quantum
kinetic equations in the variant using retarded and advanced Green's functions and
thereby combine the statistical and quantum mechanical aspects of the calculations.
The analysis is limited,to static fields. The tensor of the electric conductivity in
a static electric-field Is determined by the method of Be Xubo, (Journ. fts. Soc.
Japan v. :L20 6p 570m 2957) in a variant In v1deb the current correlation is expressed
in term of the -starded and advanced Greenwe functions. A system of integral quantu:
kinetic equations is derived., describbW the scattering processes with account of the
recombination wchanism of collision between Us carriers wA the impurities. One of
Card 2

ACC R_tA_!662WI.1_
the equations is the quantum analog of the Boltzmann equation,, and the other described
processes of capture and emission of electrons by the local levels. By way of an
example, the authors consider the recombination mechanism of impurity scatteringj,
when the carrier lifetimes are comWarable with the relazation lifetimes determined tV
the ordinu7 scattering mechanismso The recombination coefficient obtained as a re-
sult of the quantum-statistical calculation corresponds exactly to the estimates of
the "non-Condon" approximation for the probability of nonradiative transition. The
icalculation shove that for experimental observation of.the recombination scattering
mechanism It is necessary to have a high concentration of ionIze4 donors., and the
-donor degeneracy multiplicity should be high. At low tenpemtures the mobility de-
termined, by the recombination scatterirg webanim should wt depend on the tempers-
ture. The authors thw* V. L, Bondh-&OVff_ichj, ]), N, Zubww. A. 1. Us and
,N. M. P3aWd& for valuable rmarks wAs ftring various steps of this vork. Origo
aft. bas: 6540MOXIMS. I
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FREYDLIN, S.Ya., prof4 KOVARSKIY Ya.M., arkhitektor (Leningrad)
Some problems in construction of medical institutions. Zdrav.
Ros. il*eder. :'. no.11:26-29 N 161o (MIRA 14: 10)
(HOSPITAIS-CONSTRUCTION)

USS~ Jklectricity Literature Jun .51
"Review of L. M - Piotrovskiy and Ye. A. Pal I a
J~iook 'The Testing of Vlectric Machines, Part
1. General, and The Testing of DC Machines,"'
Ye M. Kovarskiy, N. I. Murkes, A. A. Stupin,
Engineers, Sci Res Inst, Min of Elec Ind USSR
"Elektrichestvo" No 6, pp 8!;~90
Reviewers consider recommendation of this book
'b7 the-Min of Higher Educ as'a manual for power
otg1meering and elec engineering instit-ates a
idstake In view of its many shortcomings, par-
ticularly the fact that only about 1/3 of the
TAteiature 'Tun ~IL~
(Contd)
book's vol has a real bearing on the test-
of machines. Published by Gosener
.~~goi.Zdat, 1949, 380 Pp, R 14-00.
:20M5

^VTAK=IY, To-M.; SAPAROTA, A.L., roaaktort, IMIONOV, G.Te, takhnichookiy
-igdot-6f~
[216atric machinery' repair] Remont alektricheakikh mashin. Moskva,
Goo. energ. lzd-vo. 1953. 240 p. (Microfilm) (MLRA 7:10)
(Electric machinery-Repairing)

en V ft Al
AUTHOR: Kovarskiy, Ye...M...' Ebgineer.- 110-12-10/19
TlTLE: n the Minimum Weight of a Power-saturating Choke (0 mini-
mal'nom vese silovogo, drosselya nasSrshcheniya)
PERIODICAL: Vestnik Blektropromyshlennosti, 195?, Vol.28 No.12,
pp. 31 - 36 ~USSR).
ABSTRACT; For purposes of automatic control, it is of interest to
control an induction motor by means of a saturating choke in
the stator circuit. The power characteristics of this arrange-
ment depend mainly on the losses in the rotor of the motor,
which can easily be calculated. However, the weight of the
equipment is very largely governed by the weight of the satur-
ating choke. This article gives particular values of the minimum
weight of choke depending on its rated power and amplification
factor.
The weight of the choke is primarily governed by the electro-
magnetic load on the active materials in it, and in particular
by the current density in the working windings. The we4 "ght
also depends on the dimensions and area of the core window and
on other factors, which are enumerated. One important factor
is the value of the amplification required and since this can
vary widely, the author introduces a concept of a choke of mini-
Cardl/3 TAum weight in which the current density in the operating and

110-12-10/19
On the Minimum Weight of a Power-saturating Choke
control windings are equal and limited by heating and, therefore,
the amplification factor is a-minimum. In designing a choke, the
ratio of the ampere-turns on the d.c. and.a.c. windings is
important and depends on the desired voltage ratio. Complicated
analytical methods of calculating this ampere-turns ratio exist
but it is better to use experimentally determined ratios, In the
manufacture of chokes it is advantageous to use material with a
high induction at saturation, such as cold-rolled transformer
steel rather than alloys of the permalloy type. A mathematical
expression is given for the magnetisation curve in order to
analyse the influence of different factors on the weight of the
choke. Xxpressions are then derived for the conditions governing
the weight of the choke and its minimisation. Detailed consid-
eration is given in turn to: the section of the core; the weight
of copper of one working winding; the best window area and also
certain factors that enter into the calculation. Expressions are
derived that can be used to find the minimum weight with chokes
of different constructions illustrated in Fig.l. The curves that
relate theweight to the window area, the window shape and the
shape of the cross-section of the core are very flat. Values of
these ratios and other design factors are tabulated for various
Card2/3 core constructions but these are intended only as a rough guide

11'01111~1,LSKIY, Ye.,;'. ,
weight of the hro
eloc"ric drive."
C-nd ech sci-wiss) A"'.Active Strength qIld
in W6 d;vicoo of -: thro,t1o
t Ue .-__~:Lqn~
the
LOS, 195u- 16 rp (Sci Res Inst o,,,,rlectt
Digineering Industry), 1CO covics (10:91-1,.~-58P 113)
-/016-

PHASE I BOOK MaWITATION 877
Kovarskiy., Yefim Mikhaylavich
Rerumt elektricheglkikh masM" (Repair of Electric Machines) Moscov.,
Goseaergoizdat,, 1958. 255 P- 40.,000 copies printed.
Ed.: Aleksandrovskiy., B. B.; Tech. Ed..: Larionov,. 0. Ye.
PURPOSE: This book is intended for fitters,, mechanics, winders and technicians
engaged in the overhaul and repair of electric machines,
COVERAGE: The author describes the techniques employed in the repair of
d-c and a-c electric machines,, the testing of repaired machines and the
detection of fmilts. He also supplies information and data on materials.,
instr=ents and equipaent employed in such repair. No personalities are
meationed. There &~e 12 references, all Soviet.
I
TANZ OF CONTENTS:
Preface 3
Introduction 7
caxd 1/6

Repair of Electric Machines
877
Ch. 1. Dismantling and Assembly of Electric Machines 29
1. Dismant3ing of medium-size machines 29
2. Dismantling of large macb.ines 34
3. Assembly of repaired machines 40
Ch. 2. Basic Information on Insulation 44
1. General information 44
2. Winding wires 52
3. Varnished cambrics 56
4. Pressboard. Baanded pressboard- 58
5. T19,pes 58
6. Micanites 59
Ch. 3. Repair of Stator Coil Windings of A-C Machines 63
1. Windings of a-c machines 63
2. Winding pitch 64
3. Three-phase winding 66
4. Mmber of slots per pole-phase; pole winding group 66
5. Fractional slot winding 71
6. Types of windings 71
Card 216

Repair of Electric Machines 877
7. Simplified represeatvUoa of winding circuits 75
8, Connection of winding phues 76
9. WI:%din-gs of variable-speed induction squirrel-cage motors 77
10. Windings of siNae-pbase induction motors 79
31. CalcuUtion of number of tam and wire gage 80
12. Winding faults and their detection 83
13. Winding methods 89
14. Random winding 90
15. Palled-tbrough winding 96
16. Former winding 103
Ch. 4. Repair of Stator and Rotor Windin s. Repair of Excita-
tion Windings 116
1. Amature windings 116
2. Detection of winding faults 126
3. Preparation of armature coils 130
4. Armature marking 130
5. Packing of coils into slots 132
6. Soldering of windings, cmmtators and armature bindings 135
7- Repair of rotor windings 139
Card 3/6

Repair of Electric Machines 877
8. Repair of armature bindin s 145
9. Repair of excitation windings 149
Ch. 5. Drying and Impregnation of Windings 154
1. Resistance standards of machine insulation 154
2. Drying by hot air method 155
3. Drying by electric current 155
4. Drying temperature 157
5. Drying time and control 158
6. Impregnation of windings 158
7- Varnishes 163.
8. Drying and impregnation data 166
9. Drying ovens 170
10. Compound filling [bituminization] and vacuum-drying 172
Ch. 6. Repair of Ccommtators and Brush Holders 175
1. Commutation 175
2. CommutAtor structure 180
3- Preparation of commutator segments 182
4. Segments assembly 183
card 4/6

Repair of Electric Machines 877
5- Commxte-tor assembly 186
6. Commutator insulation 188
7- Co=utator faults eand types of repair 188
8, Repair of ring commtator (contact slip rings) 196
9. Repedr of brush holders 198
Ch. 7. Repedr of Mechanical parts 201
1- Repair of armature and rotor cores 2D1
2. Shaft repair 205
3. Repair of frames and end-shield bearing brackets 207
4. Repair of friction bearings 208
5. Repair of antifriction bearings 212
6. Balmaing of rotors 213
Ch. 8. Testing of Electric Machines 220
1. Types of tests 220
2. Inmaation resistance test 221
3. Measurement of winding resistance 222
4. Checking of coil-end markings 225
5. Determination of transform%tion coefficient 228
Card 5/6

Repair of Electric Machines
877
6. No-load test 228
7. High-speed test 230
8. Test of insulation between winding coils 230
9. Short-circuit test 231
10. Test for heating 233
11. Test of insulation electrical strength 240
12. Testing of parts 243
13. Determination of repted data of an induction motor 244
Bibliogmphy 246
Appendices 247
AVAUABLE: Library of Congress (TM89.K62 1958)
jF/aak
3.1-24-58
Card 616

V -7.
AUTHOR: Kovarskiy, Ye. M., Engineer 110-4-?/25
~i__'__-owe-!~-6f an Electric Drive that is Controlled
TITLE: The React ve P
by a Reactor (Reaktivnaya moshchnost' reguliruyemogo dross-
ellnogo elektroprivoda)
PERIODICAL: Vestnik Elektropromyshlennosti, 1958, No 4
~6 ZUSSR')~
pp. 21
ABSTRACT: Electrical drives in which an induction motor is con-
trolled by a saturating choke in the stator circuit are
important, for example in lifting-devices used in atomic power
equipment. The governing factor in this drive is the reactive
power of the saturating choke. It is of considerable practical
interest to derive the general relationships that determine the
required reactive power and to devise a design procedure for it.
This is the object of the present article.
From the simple equivalent circuit given in Fig.lA, a relation-
ship is established between the working ch&racteristics of the
motor and the relative reactive power of the system. This gives
a very convenient method of calculating the relationship between
the power on the shaft and the reactive power of the system.
Simplifications, by using other equivalent circuits,given in
Fig.1, are then considered and data are worked out for the high-
Cardl/3 slip motor type AOC. An expression is also derived to relate

110-4-7/25
The Reactive Power of an Electric Drive that is Controlled bj a
Reactor
the rated power to that actually developed. Analysis shows
that there is an optimum minimum slip at which the current
required by the drive is a minimum. leig. 2 gives the optima
for three load characteristics. The value of the optimum slip
depends very much on the rotor resistance, which, in some motors,
may change wibh the square root of the slip.
Calculation5 may then be made of the r,actor pmer needed for
the desired speed regulation. Results of the calculation,
given in kigs. 3, 4 and 5, show that the necessary reactive
powers are very great even when they are at the least value
corresponding to optimum slip. The question therefore arises
of reducing the power required in the reactor.
There are two ways of doing this. By altering the rotor resis-
tance in proportion to the square root of the slip, the power
required in the reactor is considerably reduced for almost all
load characteristics. The data given about the reactor power
show that as the power of the drive is increased, the use of
combined regulation is unavoidable, although it entails switching
equipment and a sliding contact. Figs. 6, ? and 8 give current
Card es for combined resistance and reactor control applied to

/1 0-58-10-4/24
AUTHOR; Ambartsumov, T.G., (Cand.Tech.Sci-), Kovarskiy, E.M. (Eagineer)
and Gershkovich, G.I. (Engineer).
TITLE; The possibility of increasing the permissible current-density
under brushes. (0 vozmozhnosti povyBheniya dopustimoy plotnosti
toka pod shchetkami)
PERIODICAL~ Vestnik Elektropromyshlonnosti, 1958~No.10, pp, IT-19.. (USSR)
ABSTRACT-, A number of tests were made on d.c. electric motors of ratings
up to 20 k1f, to determine the influence of brush current-density
on brushwear, brush and commutator beating and commutating
conditions. The peripheral speed of the commutator was up to 21,3
M/se..-,-the a ecifio pressure on the brushes was maintained at
-270-300 g/J, ani~ the ourrenf,-density in the brushes was raised
double the standard value given in GORT 2332-43~ The results of
-long-term waar'tests on electro-graphite brushes for four differert
motors are tabulated, The relationships between brash wear and
service life for the same four motors is given in Fig.l. There vfv~
little variation in the degree of sparking and stability of.
commutation an compared with normal current-densities.. In some
cases commutation conditions were even improved, as shown in Fig,,';
which gives curves for a 16 W, 3000 r.p.m. motor using varioue
brush sections. Increased brush current-density had little effee~
on brush or commutator temperatures. It is, therefore, ~_orisiderel;
Card 1/2 that h igher current-densities than those included in standard

SOV/.110-58-10-4/124
The possibility of increasing the permisaible current-density under brushes,
GOST-2332-43 could be used
conditions of com=tation.
density in brushes should
can be simplified and made
for d.o. machines with normal
New standards of permissible current-
be drawn up. If this is done, brush-gear
lighter. There are 3 figures and 1 table.
SUM[ITTEDs April 17, 1958.
1. Carbon brushes--Performance 2. Carbon brushes--Test methods
3. Carbon bruslies--Electrical factors 4. Electric currents--Thermal
effects
Card 2/2

JOVARSKIT, Tefim.Rikheylovich;-TIMMINA, V.I., red.; LARIONOT, G.Te.,
q'-" tekhn 1. red.
(Repair of electric machinery] Remont alaktricheakikh mashin.
Izd.4., pereemotrannoo i dop. Moskva, Gos.energAzd-vo, 1960.
262 p. (Electric machinery-Haintenance and repair) (MIRA 13:5)

tie
TL HER
At
OW 0.
KEN H
P4 Bil- f;
RO- E
gi, ukl
's I
1 1
Te 5v
29
-2 .6 No
got

IMUHaKIL,-Yafim-Mikhay2m*ch-, RYZHIKH114A) Ye.G., red.; IA.'?1OPON',
G.Ye., tekhn. red.
(Repair of electrical machinarylRemont elektricheskikh mashin.
Izd.5., pereen. i dop. Moskvap GosenergoizdA 1962. 287 p.
NIRA 15-11)
(Electric rwAchinery-Maintenance and cropair)

KOTARY, Istvan, dr.. full-, orr-, gageorvos, fogorvos volt egyetemi
tanarseged, foorvon.
Intraoranial and mediastinal complications of abscesses and phlegmons
of the face with special reference to the border forms. 7ogor7.
exemle 47 no-11:353-358 Nov 54.
(PA(M, abscess
causing intracranial & mediastinal compl.)
PACR, dis.
(1
phlegmon, causing intracranial & mediastinal comple)
(ABSOMSS
face, causing intracrantal & madiastinAl compl.)
(PM3GHON
face, causing intracranial & mediastinal compl.)

KOVARY, Istvan, dr.
Improved forehead mirror. Fu:Lorrgegegyogyai3z&t 8 no.4:190-192 D 162.
1. A Budapesti Varkeruleti (1) Rendelointezet Ful-orr-gegeosztalyanak
(Foorvos: Kovory Istvao dr.) kozlemenye.
(OTORMOLAM"GOLOGY)

KOVARY, J.
Thecamobeans (Testaceans) of the Inferior Fannonian
5ediraents in Hungary. p. 266. FOLDTANI KOZLONY. BULLETIN
UF THE hUNGARIAN GEOLOGICAL SOCIETY. (Magyar FoldtMi
Tarsulat) Budapest. Vol. 80', no- 3, July/Aug. 1956.
SOURCE: East European Accessions Lis (EEAL) Library of Congress,
Vol. fl. No. 12, December 1~~
r

C.Y A- 9
allIPTY'KIM Sec.14 Vol-11/3 Radioloa Mar 5 7.
551. K6yARY S. Budapest. *Mit Radiumspickung und Coutardscher ROntgenbe-
strahlung geheilter Fall von loymmetrisch-beideeitigem Sarkom des harten
Gaumens. A came of symmetrical bilateral sarcoma of the
hard palate cured with radium needle.s and Coutard's
X - I r r a d I a i I o n 6ST. Z. STOMATOL. 1956, 53/5 (254-25s) nius. 2
Case report of a bilateral giant cell sarcoma In the hard palate, treated merely
by a radium implant and fractionated X-ray therapy, with a 5 years' tumour free
survival.
Lokkerbol - Amsterdam (XIV, 5, 16)

CIM-CHO-SLOVAICIA/Organic Chemistry. Synthetic Organic Chemistry. B-2
Abs Jour: Ref.Zhur-10dmiya, .11o 6) 1957, 19193.
Author Lukesh) Kovarzh, Blaha) laoubek
Inst
Title ~~erldeines, V. Synthesis H-methyl-2-phenawfl-
piperidine*
Orig Fab: Chem. ListY, 1956, 50) Vo 2)~ 278~-281- 8b. Chekhosl. 11im.
rabot,. j,.9560 21, No 3,, 1324-1327.
Abstract: Bince V,)e,,")'-me-tbylaminovalerinio aidehyde (1); obtained
before as n diusthylacetal (II) (see part IV)) presents
seemingly, the Initial product of the alkaloid sedamine
product of reduction H-methyl-2-phenacylpiperidine
~111)7, the condensation of I in physiological conditions
with benzoylacetic acid (IV), which leads to 111, is
studied. I Is isolated from II by titration with IN HM.
Card 1/3

CZECHOSLOVAKIA
Fi 4-
.',~OVARUJ F.; -ILKA, J.; Chrdr of Physiology, Voteri.n;iry ?aculuy,
U~1-1-e g~_e of Agri culture (Katedra Fysiolo-io Vetcrinxni alculty
L' - U
VSZ), Brno.
of Calves Weaned on the 3rd Day of Life and Maintain-
od -on 1-'ilk-Freo Diet After the 22nd Day of Lifo. IV. Consumption
of 1.1ilic and Vegetable Pats in the First 60 Days of Life."
Prague, Co-s-17oslovenska Zysiolor.,,ie, Vol 15, 110 5, Sep 66, P 361
Abstract: Absolute and relative amount of fats in total food sup-
ply was studied on 12 calves& The absolute consu,,aption of milk
fats in the first 21 days was 1200 g, and of vegetable fats 2500g
in 60 da s; total per calf 3700 g. The relative consu-.---.ption was
1.24 g kg of body woight per day. On the third day the fats
accounted for 51-4/J of total food intake, on the 15th day 6.6%,
and after the 22nd day 14-0%- 1 Czech reference. Submitted at
3 Days of Physiolony of Domestic Animals at Liblices 9 Doe 65.
1A -
TFUB07Dr , I
A~ With tho pur
loids in conditions, close to the naturog syntlicalz0a
iioru. dimothylacotal,~_aninovalorianio a1dohYdo (I) and
dimothylacotal of mothylaminovalorianic a1dollydo (II).
I is obtainod from the mothYl ostor of tho somialdchyao
of 0,1utaric cid. (m) by moans of dinotilylacotal of
mothyl astoraof comialdchydo of glutnrio acid (IV), Ii
is obtainod. by tho reduction of dimothylacotalamide (V)
and dimot11Y1a00ta1m0thY1amido of t"10 som'r-ldo"Ydo of glu-
Card 1/7

CHECHO-SLOVA*ICIA/Organio Chomistry, Synthotic Organic Chor-datry. L-2
Abs Jour: Rof Zhur-Khimiya, No 6, 1957, 19192
From the acid VII is obtairiod its mothyl aster via the
chloranhydrido yiold 146 g. b.p. 43.5--44.50/11 mm. IV
is obtained: a~ by the ozonization of the mothylostor
of acid VII (509.) in a modium of mcthylacotato (40o cc)
at 00 in tho course of 7~ hours, catal tic roduction of
ozonido solution ovor 1;'/ f N/BaS04 (19-~ at a tomperaturc
lower than 0, distillation of '%,he solvent boiling the ro-
maindor with C1130H (230 cc), CaC12 (10 g.~, and with a
saturated no-Uhanol solution of 1101 (5 cc) in the course
of 5 hours) subsoquont neutralization) extraction with
other, and distillation in vacuum in n coluran, yield is
IV (contnina_30j~j dinothyl ostor of frlut-.rio acid (XI))
41p, b.p. 96 970/11 =pn 8D 1.4230,`d~8 1.042~; b) cata-
U
ly-L c raduction of VIII (100 g.) in a xylolo rnoaiun (400
cc) with 45 PJ,/BaSOjj (5 ) at 1110' and distillation in
vacuum III is obtained ~~3 g. b.p. 100-1300126 mm); from
Card 1 5/7
CHECHO-3LOVAKIA/Organio Chomistry, Synthotic Organic Chemistry. E-2
Abs Jour: Rof Zhur.-Khimiyal 11o 6, 1957, 19192
III accord. to tho method IV is obtained (contains 27-
29% XI), yield 45,,f,, b.p. 105-.105.50/16) rin. is obtained
fron tho r)thyl ostor of tho acmichloranhydrido of ~lutqric
acid (~5.21 g.) by catalytic roduction with , lwl
a 4% Pd/Ba'04,
(~)Z.) in xylolo, fractional distillation, hoating 12.5 g.
of the fraction with the b.p. 911-9/60/14.5 mr-i in an abso-
luto alcohol (25 cc) modium with alcohol; H01(rasr) (3cc)
in th~,- course of 3 hours, subscquont clistillption in
vacuitia X (containing an admixture of dioster), b.p. 124.5-
125.5'/17 r=, 1120D 1.11200, d~8 0.9822; n-nitrophcnyl-
hydrf,zono, m.p. 118-1191 (fropi aquoous alcohol). V is
obtainod by heating IV (10 g.) in C11 011 (~00 cc), natu-
rated Iniz, to 1000 in +,he course of ;6 hours in an auto-
clavc, distillation of the solvent, oxtracting with C6i6
and procipitation with pctrolouTi other, yield 75-5~', m-P.
750 (from bonzono - patroloun othor). V! io obtained
Card 4/7

CHECHO-SLOVAKIA/Organic Chemistryi Synthtic Organic Chemistry. E-2
Abe Jour: Ref Zhur-11dAmiya, No 6, 1957, 19192
duction by means of LiAlIf 2 -) in tetrahXdrofurane, by
boiling for 6 hours, yield 4(891~p, b-P.76-82'J/10 mm. Part
III see RM(him. 11956; 16075-
Card : 7/7

2q- B/139/56#A/06/021/031+
,6X10 E032/ElV+
AUTHORS: Kruglov, S.P , Uvarzh, Z.,-and Lo atin, I.V.
TITLE; Relation between the en and the Energy of Gamma
- Radiation Incident per Square Centimetre
PERIODICAL: IzvestiA vysshikh uchebnykh zavedeniyj Fizika)
1959, Nr 6, PP 139-144 (USSR)
ABSTRACT: It is usual at the present time to express the intensity
of gamma radiation obtained from accelerators in energy
units such as w/cm2 or MeV/cm2.sec. However2
frequently another unit is used, namely, roentgeamin.
On the other hands it is well known that the roentgen
loses its significance as a unit above 3 Mev. The
Present authors have used the calorimetric method to
establish the connection between the roentgen and the
energy in MeV/cm2 for Emax = 45, 65 and 85 MeV. The
amma rays were produced by the synchrotron of the
f
eningrad Physico-Technical Institute of the Academy of
Sciences., USSR. The experimental arrangement is shown
Card in Fig 1, in which T is the synchrotron target, 3 is
l/)+ a lead screen, K is a collimator, M is an ionization
chamber monitor, mr is a clearing magnet, KA is the ,

69163
S/139/59/000/06/021/031f
E032/9114
Relation between the Roentgen and the Energy of Gamma Radiation
Incident per Square Centimetre
calorimeter, CT is an adjustable calorimeter table,
C is the standard ionization chamber (13 mm copper
front wall), HK is a thimble chamber similar to the
Victoreen chamber (volume = 2 cm3), and ) is a lead
jacket (3-1 mm thick). The distances between the
various parts of the apparatus are indicated7 and are in
mm. The gamma ray beam diameter was determined with
the aid of an X-ray film and was found to be 5.45 cm at
the standard ionization chamber. The intensity of the
gamma beam was found to be uniform over its cross-
sectional area to within 2-3%. Recombination effects
were found to be negligible.- In the first stage of the
experiment the calorimeter was used to determine the
energy of the gamma rays necessary to produce one coulomb
of charge in thestandard ionisation chamber. The energy
necessary to produce one coulomb of charge in the
Card monitor was also determined. From these determinations
2/)+ it was found that at Eax 85 MeV the required factor
was 4.25 x 1018 MeV/coulomb in the standard chamber.
--ouna for t~
e values

69163
S/139/59/000/06/021/03)+
R032/H114
Relation between the Roentgen and the Energy of Gamma Radiation
Incident per Square Centimetre
at 45 MeV, which is the only point in common with the
previous determinations.
This paper was reported at the Inter-Collegiate
Card Conference on Accelerators (Tomsk, February 1958).
V+ There are 2 figures and 6 English references.
ASSOCIATION: Leningradskiy fiziko-tekhnicheskiy institut AN SSSR
(Leningrad Msico-Technical Institute,,_AcademY__QX_
56-iences, us )
SUBMITTED: December 27, 1958

KOVARZH, Z., Cand Tech Sci -- (diss) "Calometer with liquid nitrogen
for absolute measurement of the energy loss of -radiation from accel-
erators." Leningrad, 1960. 14 pp; (Academy of Sciences USSR, Physics
Technology Inst); 250 copies; price not given; (KL, 2?-60, 153)

69427
S/139/6o/ooo/m/ool/041
AUTHORS: Kruglov, S.P., Kovarzh, Z. OW/Eglplatin, I.V*
TITLE: Comparison of Ionisation and Calorimetric Measurements of
the Intensity of y-rays from a Synchrotron
PERIODICAL: Izvestiya vysshikh u9hebnykh zavedeniy, Fizika,
ig6o, Nr 1, pp 3 - 11 (USSR)
ABSTRACT: It has been shown (Ref 1) that there is a discrepancy
.of 2.5-309'0 between y-ray energy-flux measurements by
different methods. The present paper is concerned with
the physical reasons for this discrepany and describes
experiments which have been carried out using the 85 MeV
synchrotron of the Leningrad Physico-technical Institute
of the Ac.Sc., USSR. The y-ray flux. was measured both
by the calorimetric and the ionisation methods. In
the calorimetric method the y-rays were absorbed in a
lead cylindrical absorber and the temperature change was
measured with the aid of a thermistor. Absorbing cylinders
11 cm and 4 cm long were used. The calorimeter employed
is shown in Figure 1. In this figure, 1 is a perspex
container, 2 is a steel chamber, 3 are polished plates,
4 are steel pillars, 5 are stirrers, 6 is an
C-ardl/,6 aluminium plate, 7 are aluminium foils, 8 are brassiv,

69427
S/139/6o/ooo/oVooi/o4i
Comparison of Ionisation and Calorlme f912/A~11
c asurements of the
Intensity of y-rays from a Synchrotron
flanges, and all the dimensions indicated are in mm. As
can be seen, two identical calorimeters are employed in
order to reduce the effect of fluctuations in the external
temperature. The thermistors in the two cylinders had
equal temperature coefficients (to better than 0.500) and
were included in opposite arms of a Wheatstone bridge.
The cylinders were well insulated from the chamber 2 and
from each other. To achieve th4s they were suspended on
thin threads in a vacuum of 10 mm Hg. The surface of
the cylinders and of the mflectors 3 was carefully
polished to reduce radiation losses. The envelope I was.
thermostated. The instrument was calibrated with the aid
an
of a special heating element which communicated/accurately
known amount of energy to the cylinders. The calibration
curve for a cylinder 11 cm long is shown in Figure -5. The
accuracy is indicated by the dotted lines and is 1%. A
photograph of the calorimeter is shown in Figure
Card2/57 Figure 4 shows the disposition of the apparatus in an actual

69427
S/1-39/6o/ooo/ol/ool./o4i
ej.14
urements of the
Comparison of Ionisation and Calorimet ~2f&
Intensity of y-rays from a Synchrotron
experiment. The y-ray beam which leaves the collimator K
passes through the monitor M , a clearing magnet mr
and enters the cylinder U of the calorimeter KJJ.
A standard ionisation chamber C is placed behind the
calorimeter in the path of the beam. The charge collected
in this chamber per unit energy of the y-beam depends only
on the maximum energy E max at a given temperature and
pressure. The measurements were carried out in two stages;
Firstv the energy of the y-beam necessary to produce one
coulomb of charge in the monitor ionisation chamber M was
measured using the calorimeter. Next, the ratio of charges
collected, during equal times, by the monitor and the
standard ionisation chamber C was determined. The
product of the two quantities gives the result. The second
method employed was as follows. A thin-walled ionisation
chamber was placed inside a block of a material. A
measurement was then made of the ionisation in the chamber
Card3 as a function of the thickness of the material in front of
it (transition curve). Since, in the case of complete , ~

69427
S/139/60/000/01/001/041
EQ~2t,E214
Comparison of Ionisation and Calorimetri e surements of the
Intensity of y-rays from a Synchrotron
absorption of the y-beam, all its energy is, in the last
analysis, usedin ionisation, it follows that the
incident energy U of the y-ray can be related to the
ionisation in the air-filled region of the chamber by Eq (1),
where W is the energy necessary to produce one pair of
ions in air, ~M is the ratio of the ionisation losses
per cm of path in the substance employed and in air
(averaged over electron energies) and I(t) is the number
of ion pairs per cm of path in the air gap at a depth t
If e is independent of t then the integral
71 Mdt is equal to the area under the transition curve.
Figure 5 shows the ionisation chamber which was used. The
high-voltage electrode B and the collecting electrode C
were in the form of aluminium foils, 0.05 mm thick. The
back-scatterer P also serves as the second high-voltage
electrode. The depth of the working volume is 2 cm. With
Card4/5' such a dimension of the air gap, electrons scattered

69427
S/139/60/ooo/01/001/o4i
EO~24ER14
Comparison of Ionisation and Calorimetri e surements of the
Intensity of y-rays from a Synchrotron
through large angles will be deflected sideways and
,will not contribute to the ionisation. All the measure-
ments were extrapolated to zero thickness of the air gap.
The experimental technique was similar to that in the case
of the calorimetric method. It was found that the calori-
mettic method is the most direct and accurate. The only
assumption in this method is that all the absorbed y-ray
energy is converted into heat and this holds provided
chemical changes and changes in the crystalline structure
do not take place. The transition-curve method for high
Z materials (lead) gives a low result. The main reason
lies probably in that the extrapolation to zero thickness
of the ionisation chamber cannot be assumed as linear.
However, in the case of low Z materials such as carbon,
aluminium and copper, the agreement between the calori-
metric method and the transltlon-curve method is
sufficiently good. There are 9 figures, 1 table and
9 references, I of which is Soviet and 8 are English.
Card5/T e r7
'4"'OL4 4~ - L4 '4 S- ( r,::-

i
.1vothermio pma calorimet+r. Zhur.tekhd'fit. 31 no,l:ll e.
(66-24
Js 163., t U$ 12)
.I
,.l. Fisiko-tekbnioheBkiy institut AN WSR, Uningrad. .-
(G=A rays) 040r"ters)

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1 4 S
00
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00 A
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06
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goo
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Calibratlisn wW Memsurtownt in Twbukwe sewmvh
by the Elot-Wire IoWbo& losdo Xogr
June 1947. National Adilisori'M ~ ftd.fo,r Aero-.
noutics, Washington. (Technical Memorandum No.
1130.) Translated from A Milenletem Aerodinami-
kal IntketAnn Kisifilt Munks, Budapest, Hungary,
1943.
Describes a calibration and measuring apparatus
and a method by which: the wire constants can Im
determined by simple measurements, the scatter of
the latter can be readily smoothed out, and on this
basis the amplitude of the fluctuations determined;
and the thermal tag (time constant) can be deter-
mined by a separate method, under actual Con-
ditions. and the required compensation and faith-
ful res agse of the entire apparatus can be readily
controwe
I - ___
Z
ASS.&LA WEIALLURGICAL LITERATURI CLAWKATION
114V 63-InT
S tOW SITIOUT.
Itt/ lldrsov!) SVIONO "Le GNV Got NAIIII OK (MV ISI
U 9 AT 00 Ill; ' " 4 * . I 1 4 . I .
IT 0 0, it 0 It a a it it x 0 0 ff 1 3F IN a a a v
it n i L
0 0 0 0 0 0 WO 0 0 0 0 0 0 0 silo". 00 01 *1 0 0 0 0 0 0 0 0 0
10'qol 000,
00 41.0 0 a 0 0 e

~-GIT T
,A .4
00 A
fell
A
01
00
0#0
0
00
.3
h
r
772, SM DWRCIV4MS IN HOT WIRE AMMOMMM.
(Hungar. Act& Phys., 1948* vol. 11 k3), 25-51).
I
Kovassnay, L. 1. 0.
'00
'00
YURMical characteristics of the hot wire are introduced into the "'0
thoory takkng Into consideration the reaction o!' h ating current 00

fluctuatio-n upon the hot wire caused by tho resistance fluotuAtion te,
10

f the wire Itself. loose of sensitivity and variation of time con-
0 =0 I
etant depend on'the ftmign of beating circuit. Sq- current Waves
are applied to the hot wire for the study of compensation performanco
and measurement of time constant. A compensated amplifier based upon ;rem
a now working principle is described. The amplifier has two separate
stages In parallelp both of them satisfying simple requirements for
frequency characteristics. The compensation Is controlled by varying
the amplification ratio of the two stages by means of a simple potent-

lug*!

S 4 - S L A MY&LUAWCAL LITINATME CLASSWICATION CIO*

U a *f go 1% An i I I rw 0 :is
Is 0 0 0 0
6 0:0
1W : : : : 00 * & 0 GA 0 0 G 00 0

YJJVAIU (Hunwinn)
sea also MAGS

KOVATS, A.
Melyepitestudomanyi Szemle - Vol. 5, no. 4/_5, Apr. / May 1955.
Railroad bridges. p. 175.
SO: Monthly list of East European Accessions, (EEAL), LC, Vol. 4, No. 9. Sept. 1955
Uncl.

KOVATS, A.
Develo-nent of tramDortation b- cableway in Tlj-~ngary. p. 41~1.
Vol 5, no. 12, Dec. 1c)55. KOZT,,--,F,'FDE3TUDO!:A,'-TvI SZF,'.IF,. Budapest., T!Unga-v.
So: 1~astern Eur-,,pean Accn-ssion. Vol 5, no. 4, April 1956

KOVATS, Attila
afi~ 603 television receiving set. (Conclusion).
Radiotechnika. 10 no.2.:46 F 160.

KOVATS, Bela
Insuring quality requirements In supplying drinking water from
storage reservoirs. Hidrologlai kozlony 42 no.2gl2l-128 Ap 162,
1. Vizugyi Tervezo Iroda, Budapest.

ILIZI, Vilmos; KOVATS D t4Geza- MATRAI, Istvan; ZIEGIER, Karoly;
Y
= ;i4 , ~-~-Yo^~zo -
't
Efficiency of production and utilization of water power.
Energia es atom 14 no.4/5:190-195 I~y 161.
1. Vizugyi Tervezo Iroda. 2. ITnergia os Atomtechnika"
szorkeszto bizottsagi tagja (for Illei).

-KOVATS., D. Geza, mernok
Conference on the Development of Watei lesources Mlanagement, Pudapost,
September 9-11.,19b4. Vizugyi kozl nr,4:5.19-522 1'64.
1. Division Chief, Water Resources Plannirg Office, Budapest.

-r-, r

1lic -:3-1 111cchnolo'.
Qq_
PAM F :Oocc~_,., nlf,., ~,r
JOIJP, UThim, 110. 1960j No,
)
A U ~MOR : Vx"o s El. ; Kow, t~ z B. ; Torio z 1, 1
71v"'T. :
T, T 2 : Pofllning of 11otor OLLs
1,) I'Cr' ) I JJO 0 2. 6:: C
iOR'G. PURI. I ?Jja
1:0-M. lapja
1A:,-;S'.7%hC,'T ~L.Nila clar-O thernosr.)l-vcni;
- i
-Ictllor,", (Till) of -purification o'L ivb-oic tirr;
4-he and result.S.
Q1 devoloped 1),
Of corrperatlivo ex-pGri-J1011ts In PLlrificallt*doll
otlarur 2--iothads, are described. The hqavy o-'l
(11 -s tilla, to o 'L naplitacilo baso vitb, 6-'D 0 . 9.)
rvo~ a,, raw
-7id -Viscosit'i I.L701.0, Ost/37-80 so
ard Petrolo-Lm, 11otor and itiockot
Dubvicants
Ai_90

';W0,01 /1'2/000/003/068/000
.31 Z (,1/13101
V' :izos , '--Endi-c ; Kovfi ts , -1di t
7 1 T LE Cont--ct rcfinin-- of lubricatinc- oils at, high teL,;,porature
2~iRIO.07C.~L: .Ivry- 71-rarnal. Khimi -b z; t r a c t
.1 ya, no. 3, 4167,
3:,'.174 pasv'anyolaj - es kiz;6rl. int. k6zl.
no. 2, 1961, 105 - 115)
on t1le re-N-ning of i-.iotor oils activatcd and nonactivated
T: 3tudj-,~,
0 ~, 1; j
'h clays f domestic or4-,r,in have slo,.,:n. that tlae best bleaching arents
U
---a cl*s actva'cd vii-~h acid. The j~reatest eff ect obtained when the
U
C. (Dils refined .,.-ith cresol are moa
claY us%~d a' 200 30C . U
to ble:-:ch than those refined with furfurol or 3henol. It wa~. found that,
,,or successful bleachi-,Q~ with clays, lhydroEan should be excluded.
I'
a-bstracterls note: Complete tra"slaition.'
Card 1/1

/X,3/009/055/0,75
31 U,
V?---os, Kov"its, Zdit, F61C-IvUri, Ist'va'n
separation of saaturLted hydrocarbons (..,-C-
1 u'.' I C A
ererativny,y -hurn,ll. i\".himi.,,?a, no. -19, abstrac,
72 Cry a r(1svhn3-olaj-C'1S fol'it-'I'tz int. 'k-bZ1., no.2'
1 ~9 61 '17 - 84)
7"-
.erosine fractions consistinC, of hydroc:&rbons t%-ith, -12 carbon at=s
11 - 1.
t"-e i-.;olecule an' s,.i- ble as a source of ray., maerial for the 1:1::Inu~%c~ure
ta
of synthetic deterE-cnts should be almost completely 't'ree of aromt-;tic col..2_
:)O~Inds. 'Tests .-.-ere made to ascertain the -oossibility oil rcmovinc the aro~
... fraction of Tuymazy petroleum by &Olsor-,tion. Irj
tics from the 1~erosine
the first, ver~;ion, the k,~rosire fraction, diEsolved in a low-boilinr petrol-
eUM solivent containinc no aromatic coi-iioounds, is passed throu8h a colu;-.-.n
L~ -
containin,g silica i-el. Elution of the saturated compounds is effecled at
0C, a 1 0
20 ni of t*ne aroiaat.ic compounds at 150 - 180 C- ..hen the layer of -..d-
sorbent has cooled, the process oun be r0pul,"t0d. In thL2 30cond vomdon,
heavy E~is oil contai-in.- no.arom%tics is used as the solvent. The proceo_~
Card 112

Ch-r.o,-,,a-tographi.c separation ...
Z-1/061/62/000/009/055/075
B160"/B144
is carried out in one cycle as in the first version. rAbstracter's note:
~Iom.olete translation.1
Card 2/2