SCIENTIFIC ABSTRACT STEPANOV, A.S. - STEPANOV, A.V.

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• Collection: Scientific Abstracts
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• Release Decision: RIF
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• Document Creation Date: November 2, 2016
• Document Release Date: August 26, 2000
• Sequence Number: 5
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

STEPANOV, A.S.; BUMAKOV, M.L.
Electrophysiological study of fatigue in muscular work. Fiziol.
zhur. 47 no.6:735-740 Je 161. (141,r(A .15:1)
1. From the Department of Human and Animal Physiology, N.L.Lobatchevski
University, Gorki.
(EW(GISE) (FATIGUZ) (ZLECTROMOGRAPHY)

ARTEMOV, N.M.; GORYACHEV, Yu.V.; LEBEDEV, O.N.; STEPANOVO AIS*
Effect of bee and cobT@a venom on the neuromuscUar apparatus
in cat. Nauch. dolkl. vys. shkQly; biol. nauki zLe.3254-61 It6_4
i. (MIRA 17:8)
1. Rekomendovana kafedrqy%J@Lziologii cheloveka I- zh!-,votnykh
Gortkovskoao gosudarstvennogo universiteta imeni Lobachev-
skogo.

STEPANOV, A. S.
r
Priority of "Russian look" in surgery. Khirurgiia, Moskva no.
il:66-68 Nov. 1951. (CLML 21:3)
1. Lt-Gol, Medical Corps.

STSPAROV, A. S.
"Tbrombosis and TPxoaraboph-lebitis in Gunshot Wowids of the limier Extremities and the
u
Pelvis." Leningrad Bediatric Medical L-is-b., Le.-Librigrad, 1955. (Dissertat-ion for the
Decree o@@ CaauEdate in Medical Sciences)
SO: Knizlmaya Lotopis', No. 22, 1955, PP 93-105'

EXC:;'RPTA MEDICA '-.ec 9 Vol 13/4 Survery Apr 59
1111PINMOSVi ANP 'Hlit(;mn(wm.FmTIs ()F, 'ri(E LFCi DUE TO
tXN',1101 %%WJNW@ (Rii5Ri4ri irm - 1-trpqtiov A, VOKS.
Lijrm,! Yii,rid 7.ir 11 v- 11-A w(f,;q,j.;lA.1> it! lee4
Wounded by gunshot; this conditt--, Aas regarjed as *i@- '-jrm r,. -in-
anarrobic infection. Extensive incisions and adminsratir-i of an-n-gangrene ser-im
tvt,ro ithout influence on the ccderna. Autopsies revealed that thrombosis of the
11131n w.t-; rt-Spolistwe for the persistent ordema. Thi, iriducr@i the author to
regal-ki throlobusiz; and throlilkloptilellitis of the It-gs .1.-; .1 Collipheat it'll of !;Ilot "ounds.
Stlld-% of 2133 case histories. 33 pattio-anatomicat specimens and ititopsy reports
avallablo It-cl to the presumption viat the endophlebitic route is the regular one for
the development of thrombosis and thrombophlebitis. i.e. the development of
thrombOSIS from the wounded -.one it) the train veins proceeds as .1 continuous
prooess. Tho de%clopiiit@nt of this pro, -ess is facilitaed and speeded up by a late
and incomplete priniary surgical treatment of the wound, as uell as an
factory immobilization of the leg during transportation. In these conditions damage
to the deep veins was observed in 90% of cases, and changes in lymphatic vessels
and nodes in only 15.7.76. Pain along the thrombosed vein was always present.
Thickening of the vein was noted in 3617. of cases. but persistent oedema of the leg
was present in 8e.. Also. a loss or a weakening of the peripheral pulse was noted
in the damaged leg. Treatment was mainly conservative. Only 4.5-7. of the patients
were treated surgically. Phlebectomy is regarded as the best operative procedure.
Ili an evaluation of the methods of treatment of thrombosis and thrombophlebitis of
the legs, the intra-osseous administration of antibiotics and the operative removal
of the thrombosed vein are emphasized. (S)

L .26510-65 9WT(I)/EPA(sp)-2/~DIT(m)/EIM(M)/T/EEC(t)/EpA.(w)-21~W(.-)..:,2 Fz4/
_..F0-47Pab-iO/Pi-4 IJP(c) _. R1WH/AT S/6M/65/035/001 -
."ACCESSION NR: AP5003257 /0165/0167
AUTHOR: Pashchenko,V.P./ Stakhanovj.P./ Stepanov,A.S.
'TITLE4 ()n the influence of the RIASMa aengkty near the electrode on the conducti-
vity in a tranavarse magnetic field
8 OURCE: Zhurnal takhnIchogkoy 11ZIM, V*36, A0,1o,1905, 165-10
TOM TAGN i plauma, plaoma denti ity, plaama dif f uslon, thermoelectric converter.
CT: A magnetic field affects the conductivity of a plasma not only by alter
ABbTRA
ing the diffusion constant but also by influencing the density of the plasma in the
neighborhood of the electrode This latter effect is calculated in th6present pap--.-
.7 er. The electron distributioniunction in the electrode region is computed separate-@'

L 26970-65
ACCESSION NR: AP5003257
were compared with measurements performed with a mock thermoelectric converter by
plotting the ratio of the saturation current to the equilibrium current (obtained
by extrapolation from the low temperature region) against the strength of the ap-
plied transverse magnetic field. The apparatus.,and experimental techniques are de-@
scribed elsewhere (Yu.K.Guslkov, V.P.Pashchenko, and Ye.Ye.Sibir,Izv.AN SSSRiSer. fLz.
28,1537,3.964). Moderately good agreement between theory and experiment was obtainal
The differences between the theoretical and experimental values are ascribed to th4
between the electrons and the cathode. and to

Card 2/3
'j14

STEPANOV, A. S. ; STA@HANOV, I. P. : GUSTOV, Yu. K.; ELASIXOV, I. I.; PAS-11CHENKO J, V. P. .
MAYEV@ b. A. ; LEbEDEV, M. A.
"State of the irpiestigations into p1lysical processes in thermionic converters."
reL@oi-t to be Dresented at Intl Canf oil Thermionic Electrioall Power Generation,
London, 20-24 SeD 65.
USSR State Coral "'Or Applications of Atomiz Energy, Moscow.

ir
3 5

PA-SHCH-INKO, STAM I.P.; STEPANOVI A.S.
Effect of Plasma density near the electrodG on conductlvl-,,.@ 'tn
a transverse magnetic field. Zhur. tek.11. J'j.z. 35 no.1:165-1167
Ja 165. (141P@ 18-3)

KUBASOV, IT.Y., assistent.;STaANOV, A.T., vetvrach
Syringe combined with an illuminator. Zhivotnovodstvo 21 no.11:
77-78 t. 11 '59 (MIRA 13:3 )
1. Vitebskiy veterinarnyy institut.
(Artificial insemination) (Syringes)
'It."

-.-- * 7 - 1, .,@ - ; , - , / t I . @ I -
KAZARNOVSFJY, M. V.jI STEPANOVP A. V. and SHAPIRO, F. L.
911bermalization and Diffusion of Neutrons in Heavy Media."
paper to be presented at 2nd UN Intl. Conf. on the peaceful uses of Atomic
Energy, Gneva, 1 - 13 Sep 58.

o
;21(4) ?HASX I BOOK RXPLOITATION SOV/2583
International Conference on the Peaceful Uses of Atomic Zngergy.
2nd, Geneva, 1958.
DokL&dy savetskikh uchonykh; yademyye reaktory I yadernaya @nor-
get1ka. (koports of Soviet Scientists; Nuclear Reactors and
Iftclear Power) Moscow, Atomizdat, 1959. 707 P. (Series; Its:
?raft, val. 2) Zrrsta slip Inserted. 8,000 copies printed.
general Mde.. N.A. DO110zhals Corresponding Members USSR Academy of
Solerwesp A.K. Krastn# Doctor of Physical and Kathematica.1 3zi.tacem,
A.Z. Loypunaklyp Members Ukrainian SSR Academy of Sciences, I.!.
Xovlkovp Corresponding Member# USSR Academy of Sciences# and V.S.
F4rwvv Doctor of Physical and Mathematical Sciences; Rd.t A.?.
ALYablyev; ?ech. Md.: Ye. 1. Kazel-.
PURPOSS: This book is intended for scientists and engineers wneaged
In reactor designing# an well an for professors and students or
higher technical schools where reactor design is taught.
a .1@wluwv oalletIon On the E.!-^.t
COVERhaff. This jAt@@"avni voluma ot
_
11" Qr-4RZaLFG-:n&r9Y. The Six volumes contain the reports pro-
mented by 3ovI t scientists at the Second International ConCerence
on Peacerul uses of Atomic Znergy, hold from September I to 13,
1958 in Geneva. Volume 2 consists of three parts. The first is
devoted to atomic Power plants under construction in the Soviet
Union, the second to experimental and research reactorso the ox-
POrlownts carried out on themo and the work to improve theml &-nd
the tAird. Which IS predominantly theoretical, to problems of
mm,cloar reactor physics and construction engineering. Yu. 1.
Mar7akIn in the science editor of this volume. See SOV/2081
for titles Of All volumes of the set. Rererencen APPSAr at the
r th
ti
l
e ar
c
QR4 o
es.
Moetovoyp V.t-v V.S. Dlkartv, N.H. Y09iz&rOv, and Yu. S. SaltYkOv-
Measuri N Spectra In Uranium Water Lattices (Report
1 eutron
@
546
@
2
no. 2,,
xr.sin, A.]L, B.G. Duboyakly, N.M. Lantsov, Yu-Tu- 01&zlc0v,
R.K. Goncharov, A.V. Kamayev, L.A. Oaraaeva, V.V. VAvllOv-
1
1. Inyutin, and A.?. Sonchankov. Studying the Physical
To
.
characteristics of a Beryl lium-noderator Reactor (Report No.

2146) 1---. 1 - - r . - 555
Gelanin, A.D., S.A. Nemirovxkaya, A.P. Rudlk, Yu. 0. Abov, V.P.
r
belkin, and P.A. Mrupchitskly. Critical Zz i t an Expert-
ar man on
SlOntal Heavy-water Reactor (Report . 2036
No @ 5TO
Marchuk, G.I., T. Ya. Pupko, To. 1. Pogudallna,rV.V. SM01OV,
1.10. Tyuterevp 3.T. Platonova, and 0.1. DruzhLnins. Certain Pro-
his" In Nuclear Reactor Physics and Methods of Calculating
Them (Report No. 21 51) 5N
glnyutl.n. G.V . and V.N. Samenov. Determination of Cont ol Rod
affectivenesm In a Cylindrical Reactor (Report No. 24695 613
Qollfand, I.M., S.W. Yoynberg, A.S. Prolov, and X.N. Chentsov.
going the Monte Carlo Method of Random Sampling ror Solving the
Onstic Equation (Report No. 2141) 628
Lalstlns 9.1. Neutron Distribution in a Heterogeneous Nedi=
tMeport No. 2189) 634
Laxarnowsicly, N.V.p k.V._0t*2ja2_U and F.L. Shapiro. Neutron
Thermalizatlan and DrrrT@i6n_1n Heavy Media (Report No. 2148) 65.1
Wernik, A.X.p V.S. YerMAkov@ and A.V. Lykov. Using the Oneager
Theory for Studying Neutron Diffusion in the Absorbing Media or
buclear Reactors (Report go. 2224) 668
broder, D.L., S.A. Xurklno A.A. Lituzov, V.V. Levin, and
T.T. Orlov. Studying the Spatial and Mn*rgy Distribution of
Neutrons In Different Media (Report No. 2147) 6T4
D"trlyev A 8 Boron Ionization Chambers ror Work In Nuclear
;-
;
l
.
t No. 2084)
n*
me& ators 69o
firtIlln. V.A., end S.A. Ulybin. Rxperimental Determination of
Specific Volumes of fl*avy Water In a Wide Temperature and Pr*a-
sure Range (Report No. 24TO 696

34
mn
Yli
In
ail
Tj

a
STEPANOVt A. V.p CAND PHY"ATH SC:Iq CERTAIN PROBLEM$
OF THE THEORY OF INTERACTION OF SLOW NEUTRONS WITH MATTER*
Moscow, 1960. (MOSCOW STATE UNIV IN M. V, LomoNosov. Sci
RES INST OF NUCLEAR P"Y$)* (KLI 2-61t 199).
-20-

3/08 60/006/006/023/023/XX
-,I) BoZW63
AUTHOR: Stepanov@ A. V.
TITLE: Convergence of SerieA in the Mult'group Theory of Neutrcn
Diffusionjq
PERIODICAL: Atomnaya energiya) 1960@ Vol. 8, No. 6, PP- 550 -- 551
TEXT: The author of the present paper shows that the convergence of
several series appearing in the multigroup theory (when the temperature
of the neutrons produced is much higher than kO .. where 0 is the modera-
tor temperature) can be improved even without age approximation. This
is illustrated by the example of the neutron flux distribution
N . A ) + T(?3x), where y(4r,x) coincides with N(?.,x@ when E>>k@
0;,X) .- Y(.r,x % j
and ?(-r*,,x) is represented by an expansion with respect to Laguerre poly-
00
nomials: xe L
r (x)ni('h, This sezies !@onverges
X)
lard 1/2
V

8h8g-(
Convergeae;e of Series in the Multigroup S/089/60/008/006/023/023/XX
Theory of Neutron Diffusion B006/BO63
4
mun,h better than an expansion cf N(r,x). This iB leml-nsl.rated by @wo
special oases: 9) the distribution of neutrons in a heavy moderator
(M > 1 ) which is a monatomic gas and has the f crn of a plate set, ---ontain -
ing uni-formly distrIbuted sources @:,f monoenergAtli3 neutrons, The neu-
trons are; however, inhomogeneouGly absorbed sin@@e part of the plaTes
consist of a pure moderator and part of thew. of a homogeneous mixture.
2) The distribution fun-.tion of neutrons em.4tted by a point source in a
bounded volume of a homogeneous mixture of moderator nuolei and nuclei
of superthermal resonanse. The parameters of -r;hs expansion in thre-e-
group approximation were numerically calculated for three temperatures
of the moderator. Resulte are collected in a Table. The author thanks
M. V. Kazarnovskiy foz suggeatiLng @hs tapa.-_@, and Z. P. Mukhin for
numerical calculations, There are 1 tablr@ and 4 references; 3 Soviet
and I US.
SUBMITTED: January 21, !960
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8h408
S/056/60/039/004/026/1048
B006/BO63
AUTHORS: Kazarnovskiy, M. V.,,.Stepanov, A. V.
TITLE: Elastic Resonance Scattering of Slow Neutrons in Crystals
PERIODICAL: Zhurnal eksperimentallnoy i tellreticheskoy fiziki, 1960,
Vol@ 39, No. 400), pp. 1039 - 1041
TEXT: The present paper gives formulas for differential elastic
resonance scattering cross sections of slow neutrons in crystals. The
authors confined themselves to nuclei having levels of resonance
energies!:-@ ev and a relatively high ratio of neutron width io total level
135 166 16q 177 185 197
width (>_,O.1), such as Xe Yb Tm Hf Re Au and
240
Pu First, a formula that is exact up to a trivial constant factor is
given for the elastic resonance scattering probability of neutrons in a
crystal, neglecting the total resonance level width r of the quantum
state of the lattice. Using the results of Lamb (Ref. 1), a few other
expressions are given, which are further treated in Debye approximation.
A_-A 1/2

8111108
Elastic Resonance Scattering of Slow Neutrons S/056/60/039/004/026/048
in Crystals B006/B063
Thus, P = OD dt exp it 2 _ E 2-Pt + g(011 and the mean square IPI'
@ K o 2 -2
in Debye approximation has the form IPI = 21(a exp (2Ref(t A,
a2 .1d 2g(t )/d t2j,.t , where t0is the value of t corresponding to the
0 2
maximum of the function f(t) = g(t) + it(p /2m-E 0 Pt/2. The two specialx
cases T,@O (0 - Debye temperature) and T = 0 are considered. For the two
cases, the authors give expressions for g(t) and determine f(t 0).
F. L@ Shapiro is thanked for discussions. There are 3 references:
1 Soviet, I US, and 1 German.
ASSOCIATION: Fizicheskiy institut im. P. N. Lebedeva Akademii nauk SSSR
(Institute of Physics imeni P. N. Lebedev of the AcadenLy
Sciences USSR)
SUBMITTED: May 3, 1960 (initially) and July 28, 1960 (after revision)
Card 2/2

31
S/058/6Z/000/004/029/,160
AO58/A1O1
TITLE: On the theory of neutron thermalization in heavy crystalline
moderators
PERIODICAL: Referativnyy zhurnal, Fizika, no. 4. 1962, 60, abstract 4B450
(V sb. "Ney-tron. fizika". Moscow, Gosatomizdat, 1961, 92- - 99)
TZKT: in the work of Kazarnovskiy et al. (RZhFiz, 1960, no. 10, 25988) a
met-4od was developed for investigating the thermalization and diffusion of neu-
@rons in heavy media. In a diffusion approximation the transport equation was
U
reduced to a system of diffusion equations by means of expansion of the neutron-7
distribution function in energy group . The requisite information concerning
the dynamic properties of the moderator weLs contained in the coefficient Yik-
in the present work under some assumptions concerning the frequency spectrum of*
the natural vibrations of the crystal lattice of the maderato an expression is
derived for I in the form of rapidly converging series (-n-@), and the depen-
1/i k
dence of Yik on the form of the frequency spectrum of the crystal's natural vi-
brations is investigated. 0. Mos@alev
[Abstracter's note: Complete translation]
Card 1/1

S/638/61/001/000/014/056
BIOI/B102
AUTHORS: Kazarnovskiy; M@ V., Stepanov, A. V.
TITLE: Neutron thermalization. (A review paper)
S07-RCE: Tashkentskaya konferentsiya p-o mirnomy ispol'zovaniyu
atomnoy energii, Tashkent, 1959, Trudy, v. 1, Tashkent, 1961,
107-117
TEM This is a report on the development of research into the interaction
of neutrons with matter since 1936 (Fermi). Such subjects as interactions
be'ween neutrons and atoms, molecules, crystals and liquids are briefly
dealt with as well as the multiple scattering of neutrons in matter taking
ac,=nt of the chemical bond and of the atomic thermal motion; and also an
approximate representation of neutron thermalization in a heavy gas.
Experiments conducted at FIAN are mentioned,, S. I, Drozdov, D, F,
Zaretskiy@ and F. L. Shapiro (Reports at the Second Geneva Conference on
the Peaceful Uses of Atomic Energy) are referred to, There are 2 figures
and 47 references: 6 Soviet and 41 non-Soviet. The four most recent
Card -1/2

s/638/(1/001/000/014/056
Neutron thermalization, (A review paper) B101/B102
retl@eren,.-es to English-language publications read as follows: Brockhouse
B N- Phys. Rev. Lett., 2, 256, 1959; Palevsky H,, Hughes D, J.,
Kley W., Tunkelo E.,, Phys, Rev. Lett., 2, 258, 1959; Chose A., Palevsky H17
Hughes D,, J.., Pelah I, Eisenhauer C, M,, Phys. Rev,,, 113, 49, 1959,
Brockhouse, B.. N- Phys, Rev, Lett.; 2, 287. 1959,-
ASSOCIATIONt Fizicheskiy institut im- P. N. Lebedeva AN SSSR
(Physics Institute imeni P. N. Lebedev of the AS USSR)
f7ard 212

S/056/61/040/002/029/047
B112/B214
AUTHORS: Podgoretskiy, M. I., Stepanov, A. V.
TITLE: The problem of Doppler width of emission and absorption
'Lines
PERIODICAL: Zhurnal eksperimentallnoy 44. teoreticheskoy fiziki, V. 40,
no. 2, 1961g 561-566
TEXT: Classical and quantum-mechan--'cal methods are used to study the
consequence of the Doppler effect on the width of emission and absorption
lines of gases ar4 highly ideal liquids (very dense gases). The amplitude
of the emitted radiation is A _, expri") t-; Jt/4 , ixx(t)'l ,whe re ( j
.- 0 1 0
is the frequency, I/?, the mean lifetime, -and X the wave number. The
dependence of the spectral intensity I on W0 - W is given by the
1 ( -) 00 r , C-
formula: Re " S, )(2a2
I d- exp@-.-. )e-. -4/2 -i 1/4 (.r)lr
0
Card '@/3

The problem of Doppler width... S/056/61/040/002/029/047
B112/B214
The function 02(1) is characteristic of the motion causing the Doppler
effect. Several expressions are gi7en in the paperfbr this function,
including one due to S. Chandrasekar4 which holds for an absorbing
system diffusing -in a compressed gas or a liquid:
2(_ F-, - ". -@ ) /@j@ !E-T
a ) = 4D L- - (1 - P ( = MD . Here, D is the diffusion co-
efficient, k the Boltzmann constant, T the temperature, and M the mass
of the absorbing atom, If the condition
kT/1AD2K2 ( Z'. /2,,t L)2 @@ 1is satisfied (11 is the wavelength, L the
mean free path the following relation holds.
I (,@@ ) _ F@-- 2 , X2 )2 1 .
-- 07: t W2 D 7 In 'his case there is a narrowing of the
line width of the order of x2D as against the usual Doppler width
X(kT/M) for small L/A ; a broadening of the line width results for large
L/A. The paper is concluded by a discussion of the possibility of the
experimertal observation of the resonance absorption of gamma quanta
and slow neutrons in 'liquids, F. L. Shapiro is thanked for discussionsi
Card 2/3

The problem of Doppler width.- 3/056/61/040/002/029/047
B112/b214
and M. V. Kazarnovskiy and 1. 1. Sobellman for help. There are 12
references: 3 Soviet-bloc and 7 non-Sovie-c-bloc.
ASSOCIATION: Obl'yed-inennyy institut. yadernykh issledovaniy
(Joint Institute of Nuclear Research).
Fizicheskiy institut im. P. N. Lebedeva Akademii nauk SSSR
(Institute of Physics imeni P. N. Lebedev, Academy of
Sciences USSR)
SUBMITTED: August 3, !960
Card 3/3

KAZARNOVS]aY.. M.V.; STEPAYOV, A.V.
Theory of resonance scattering on atomic systems. Acta phys Hung
14 no-1:45-66 162.
1. Fizichaskiy Institut im. P.R. Lebedeva All SSSR.. Moskva, SSSR.
Predstavleno Albert Konya.

KAZARNOVSKIY., M.V.; STEPANOV, A.V.
"Observed" probabilities of elastic neutron scattering and the
Mossbauer effect in degenerated systems, and some new possibili-
ties for producing such systems. Zhur.eksp.i teor.fiz. 43 no.6:
2299-2301 D 162. (KIRA 16:1)
1. Fizicheskiy Institut inewL Lebedeva AN SSSR.
(Neutrons--Scattering) (14ossbauer effect) (Quantum theory)

S/05 62/042/002/029/055
B108%104
AUTHORS: Xazarnovs-iy, M. V.,, Stepanov-A--V-.-%
TTTLE: Theory of resonance scattering from atomic systems. I.
General formulas
PERIODTCAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki, v. 42,
no. 2, 1962, 489 - 498
TEXT: The authors derived general formulas for the probabilities of
resonance and interference scattering. Under the assumption that an
excitb:tion (gamma absorption or neutron capture) does not affect the motion
of the center of gravity of the scattering atoms, and that energy and width
of the excited level are independent of atomic number and spin projection
of the excited nuclei, the total probability of resonance scattering is
IV'(P,, pl) 2hA w_ pl) + 2.,tB (pl, pl),
(PI, P)
4

ttering...
Theory Of resonance sca
s/056/62/042/002/029/05'.,
B108/B104
X(Ei-E,-E.i--LiF)-I(milexp(-Ip,R,)Imx>X
x ''6(EI-EI), (2)1 (2)
is the probability that the scattering system initially was in
where gm.
the state mi, Moreover,
._WWAVIS PVT d@kj df-@&Zv (P,- Pi, I't-1-0 x (8)
+ E,
x exp ((It (E,, - Epj) + it (Ep, -L ir)
with
.7-v (p,, p1j.pip t. r) " (Sp e7"")-'Sp IC' 44;
exp (- jp,4 -(pp+ t - t')) exp (1p, 4'. (p + t)) x(10)
x exp- ipj A. (1)) exp fip, A. (0)).
Card 2/4

S,/056/62/042/002/029/05
Theory of resonance scattering... B108/B104
The physical meaning of the'correlation function Z can be seen from
(12
(13@
which equations show that r7V, determines the spatial correlation of the
V-th and the v1-th, particle at four different instants of time. Interfer-
ence of resonance and potential scattering can be taken into account by
adding to the re3onance scattering probability a term of the form
Wj,,t (pl, pj@ 41t Re A'Yj v,, %, pl) + B' 2] V., (Pi, Pdj, (23)
00 00
with V"" (Pp PI) 1 (2a) dp WZ@,, %, p,, p, t, o) x
(24)
x exp.1 ijL (EPI E,,,) + it (Epi - Eo + -L if)),
Card 3/4

S/056/62/04 2/002/029/055
Theor.y of resonance scattering... B108/B104
Tn .1 .-,;b.-oquent paper the results of this work are to be applied to some
si -1,-i mn 'cils of the motion of the scatterer atoms. Mention is made of A.
Ak) j.- I. Pomeranchuk (J. Phys. USSR, Ll_, 167, 1947), 1. P. Dzyub, A. F.
Lubcli-rko (FTT, J, 2275, 1961 ; Izv. AN SSSR, seriya fiz., _29, 901, 1961).
Thereare 22 references: 7 Soviet and 15 non-Soviet. The four most recent
references to English-language publications read as follows: P. Schofield.
Phys. Rev. Lett., J, 239, in6o; K. S. Singwi, A. Sjblander. Phys. Rev.,
120, 1093, 196o; G. Baym. Phys. Rev.,'121, 741, ic6l; M. V'. Kazarnovski
J IYI
A. V. Stepanov. Inelastic scattering of neutrons in solids and liquids,-
Intern. Atomic Energy Agency, Vienna, 1961, P. 87. t4/
ASSOCIATION: Fizicheskiy institut im. P. N. Lebedeva Akademii nauk SSSR
(Physics Institute imeni P. N. Lebedev of the Academy of
Sciences USSR)
SUBM[ITTED: July 31, 1961
Card 4/4

ACCESSION NR: AT4041827 8/2504/64/024/000/0212/0261
AUTHOR: Stepanov, A. V.
TITLE: Some problems in th@ theory of thermal neutron Interactions with matter.
SOURCE: AN SSSR. Fizicheskly institut. Trudy*, v. 24, 1964.- Issledovanlya PD
neytronnoy fizike (Research in neutron physics), 212-261
TOPIC TAGS: neutron, thermal neutron, neutron bombardment, neutron matter
interaction, neutron distribution function, neutron transport process, atomic motion,
chemical bond, phonon process, neutron scattering, neutron capture
ABSTRACT: Since the early days of neutron physics, tivo basic problems have become
prominent: the investigation of the elementary interaction of neutrons with matter and
the study of the transport processes of neutrons. A short discussion is presented on the
processes involved in neutron scattering on atoms in ciystalline solids and liquids in-
cluding the temperature effect, phonon production, etc. The major part of this work,
however, is concerned with the transport properties of neutrons. The following topics
are investigated: a) the asymptotic behavior of the energy function and spatial-energy
distribution of neutrons in a heavy crystal1ine moderator for neutrons with energy
E >> kBT and E >>'@Bk (where 0 Is the Debye temperature); b) an analytical approach to
.Card- 1/10

ACCESSION NR: AT4041827
the problem of neutron thermalization; and c) the resonance interaction of thermal
neutrons with matter, which is related to the theory of thermalization, taking into
account chemical bonds and the thermal motion of the absorbing atoms. The neutron
distribution function in a moderator is obtained by solution of the Integral differential
equation with a kernel W(V, VI) where W is the probability that neutrons with the velocity
V will scatter in the velocity interval V', V1 + dV1. The basic equation of neutron tranap
for the case of a heterogeneous moderator is derived as
vV-N(r, v) - N (r, v) + W (v, V) dv'] +
+ N (r.'V) W (V, v) dy' + q (r, v) 0.
L
2/10
1-Card
V9
(U. 0 do' VN, (r, V
-3
(2)

ACCESSION NR: AT4041827
The spatial energy distribution function for a moderator of a he4vy monoatomic gas Is
given by .... . .. .. . @ . ?. I I .- . .
2 MN (r. x) OAF (r, x
V (X.VN (r. x)) + W x + x + N (3)
+ A-Ir. -V;) 0.
Ir
and It is shown that it can be reduced to the age equation by Laplace transformation. It
is also shown that this function can be obtained in the form of a collection of neutron groups@
If a moderator Is a homogeneous, spatially finite body, the distribution function is given lc@
by
IV (r. tLk. Z, (r) Z( r (013,) xe-(D (PBj, 2. x),
(4)
For monoenergetIc neutrons in an infinite moderator,. the function is gb@en by
N (r, -6 L( .1) (-) L.", orei
x
(5)
Card 3/10

ACCEMON NR: AT4041827.
and for a moderator consisting of two adjacent homogeneous plates, by
I'N L( (iro) "I, eth .K' :'a+ I
(ZI X) 6xrz -@ I
R-O I in T 1) 1 111@
e
, JhK@-: (a -
+ 2 cth b]
-W Sh a
X1
L (b + 2)
L(RH (X) A
:IN (z, x) 6xe- YJ n In(ft + i ) I If R-
R-0
Xv
cth )r;.a + -L-3- cih 1r;b
NJ NJ
Card 4/10
(6)
(7)

ACC-5SSION NR-. AT4041827
ch z + cth b - sh z
(8)
a
th Y@b sh 1@@ p i
a + z,) ,(a-4) @
NJ
N (2, X) 6xr- (X)
ni (it + 0 n No xt
_@Jch z + "J"' cth -K-: b sh X' (a
NJ =4XIS XI Y; p
th
5/10
-Card

ACCESSION NR: AT4041827
For a heavy crystalline moderator and small values of V-V', the distribution function Is
ca
given by UT 'V + @ (a (v, 6@ du']-'V N. (r, v)j -, V. (r.
Y T. 0 8N,(r, a) T (U)
u. 1, (v) 4- -!Lt- M'vv (r' V) (10)
Af, (r, v) 1, (v) 4 11. (JU Z) dV3
+Q (r.v) -0,
31 dU3
for V a;
nil W- J1,[D, ch Pg + 11 (ch @g - 1)]
1, D, ch Piz + (ch Piz - 1) (17
All, (2) "(Di ch Piz + (ch Piz - 1) - D3 ch Piz - A (ch Piz - I
All
a>z>G.
The Influence of the dynamic properties of the atoms of the moderating medium on the
therr alization of neut@rons is also investigated by studying the relation between the
parameters of thermalIzation and the correlation function in the moderating material.
Card-8/10.

ACCESSION NR- AT4041827
In the investigation of the resonance interaction of thermal neutrons and V quanta with
matter, the probability of resonance absorption is derived and given by
IV (E) 2
- Re dten
me
In the case of a liquid moderator this probability is given by
dr'a (r + it/ (0) 8 W- !'I
"The author is Indebted to M.V. Kazarnovskiy for his constant interest, valuable
comments and advice, to F. L. Shapiro for stimulating discussions and to Z. P.
MuRhin for carrying out a significant proportion of the numerical calculations. Orig.
art. has: 1 table, 4 figures and 121 numbered formulas.
ASSOCIATION: Fizicheskly Institut im. P. N. Lebedeva AN SSSR (Physics Institute,
AN SSSR)
Cor 9/10

ACCESSION NR! AT4041827
SUBMUTED: 00
SUB CODE: NP
10/10
NO REF SOV: 013
ENCL: 00
OTHER:0,0

k-
ACCESSION NR: AP4042382 S/0056/64/047/001/0139/0146
AUTHORS: Kazarnovskiy, M. V.; Stepanov, A. V.
TITLE: Elastic scattering of neutrons and the Mossbauer effect in
systems with local degrees of freedom
SOURCE: Zh. eksper. i teor. fiz., v. 47, no. 1, 1964, 139-146
TOPIC TAGS: neutron scattering, energy level, Mossbauer effect,
temperature dependence, correlation statistics, krypton
ABSTRACT: It is shown that additional valuable information on the
energy levels corresponding to the local degrees of freedom, and
particularly their lifetime, can be obtained from an analysis of
elastic (more precisely, quasielastic) scattering of neutrons* The
possibilities are discussed of investigating these lifetimes and the
laws of motion relative to local degrees of freedom by quasielastic
incoherent scattterinq of slow neutrons and also by the Mossbauer
1/3

ACCESSION NR: AP4042382
effect. It is shown, in particular, that under conditions of "poor
resolution" the dependence of the probabilities for these effects
on momentum transfer and on the temperature of the medium differs
essentially from that of.a system without local state. It is demon-
strated that the cross section for quasielastic scattering of neu-
trons should depend significantly on whether local degrees of free-
magnitude
of the effect, as ex-
dom are or are not present. The
pressed by the ratio of the correlation functions, amounts to 0.2
as determined by neutron scattering and 0.5 as determined by the
Mossbauer effect. It is pointed out that at large momenta, the
probability may even increase with temperature. This effect may ex-
plain the peculiar temperature dependence of the Mossbauer effect
on krypton embedded in organic compounds (Hazoni et al., Physics
Letters, 2, 337, 1962). The practical difficulties of observing the
peculiarities in the temperature behavior of the correlation func-
tion when local degrees of freedom are present are discussed. "The
authors are deeply grateful to F. L. Shapiro for continued interest
2/3

!ACCESSION NR: AP4042382
and to M. A. Krivoglax and A. A. Maradudin for helpful discussions.*
Orig. art. has: 3 figures and 18 formulas.
ASSOCIATION: Fizicheskiy institut im. P. N. Lebedeva Akademii nauk
,SSSR (Physics Institute, Academy of Sciences,SSSR)
SUBKITTEDs 300at63
07=1 004
!BUD COM M M RZIP SM 003
3/3

ACCESSION NR: AP4043629 S/0056/64/047/002/0543/0557
AUTHORS: Kazarnovskiy, M. V.; Stepanov, A. V.
TITLE: The time correlation function method and its,application to
the theory of Mossbauer line shift and deformation
SOURCE: Zh. eksper..i teor. fiz., v. 47, no. 2, 1964. 543-557
TOPIC TAGS: Mossbauer effect, excited state, correlation technique'..,
radiation effect theory, time correlation, line shift
ABSTRAM The interaction between radiations of arbitrary type
(particles, quanta) with complex systems (molecules, liquids) is
analyzed in order to ascertain what information concerning the struc-
ture and dynamics of the complex system can be obtained from an
analysis of the data obtained by sounding the system with radiation
.and, conversely, what characteristic of the complex system-must be
known in order to predict the results of such an action. Starting
Card 1/3

ACCESSION NR: AP4043629
with the van Rove expression for the differential scattering cross
section
'V
tAE) K(f) A
Eau C'3 elp
where K(t) is the statistical and quantum mechanical mean of an
operator T+(t)T(O) and AE -- energy transfer, it is shown here that
(1.1) is a general formula and different types of sounding particles
and their interaction with the system differ only in the*concrete
form of the operator T(t). Each such operator is regarded as a dy-
namic variable characterizing the investigated system. The correspond-
ing function K(t) is the time correlation function of this dynamic
variable. The types of the operator T(t) for different particular-
cases are considered. By way of an example, the shift and deforma-
tion of a Mossbauer line due to the difference in the Hamiltonians
of the atomic motion, when the Mossbauer nucleus is in the ground
state and in the excited state. Integral relations connecting the
Card 2/3

ACCESSION NR: AP4043629
Mossbauer probability (as a function of the temperature) with the
shape of the Mossbauer line are obtained. It is shown that when'
there are discrete de4rees of freedom,. the Mossbauer line will not
only shift but will ale*o be greatly distorted. Some possible appli-
cations of the time correlation function techniquq are discussed.
Orig. art. has: 49 formulas.
ASSOCIATION: Fizicheskiy institut im. P.*N. Lebedeva Akademii nauk@
-SSSR (Physics.Inatitute, Academy of Sciences SSSR)
SUBMITTEW lOJan64 ENCL: 00
SUB CODE: NP MR RZF SOV: 006 OTHER: 011
CA
Card 3/3

-L 275lo-66 EWT(1)1EWT(m)1FCC1EWA(h) GS/GW
ACC NR; AT5023950 UR/0000/65/000/000/0357/0360
AUT11ORs Gedeonov, L.14,; Zhilkina, M.I.; Illinakayat T.A@; Stepanoyp A,V,
ORGt None
TITLE: Chemical composition of atmospheric precivitztion@l and fallouts in the
vicinity of Leningrad
SOURCE: Nauchna-ya konferentsiya po yadernoy meteorologii. Obninsk, 1964. Radioactiv-
nyye izotopy v atmosfere i ikh ispollzovaniye v meteorologii (Radioactive isotopes in
the atmosphere and their use in meteorology); doklady konferentati. Moscow, Atomizdat
1965, 357-360
TOPIC TAGS: --falletit rshemiral %3 11 Q"r- ift"eWt=d*-*M.
aipation metheds r*" 1411*@rl@@,@;@, radioactive f allout,
_-XV J
atmospheric precipitation
ABSTRACT: The aim of this study was the determination of radioactive fallout composi..--
tion with higher than usual precision and range. Samples were analysed to determine
two groups of data-'a) radioactive fission products content, b) content of macroadmix.,
tures. Radioactive fission products were caught into aluminum containers with 1 squ.
meter area, 10 cm. deep, provided with a layer of oiled filter paper on the bottom,
and into porcelain tanks filled with a weak solution of nitric acid in water. After a
monthly exposure on an open platform, the accumulated material was evaporated, burned,-.@@
fired and weighed. After a measurement of total beta activity and the spectrum of
UDCs None

L 27510-6
ACC NRt i
)
T5023950
TAB LE 1
Composition of fallout by individual elements, in the viscinity.J*.-
of Leningrad. Period of collectioni 1960-1963.
Element:
Concentration, %
Not detected by the
-As,Bl, U, Ge, HIn, Nb, Sb,
Ta. T1, W, Th,U spectral analysis method
Ag, Be, Mo, Co, Ga. CS.
Sn, Y 0,001-0,01.
Cu, Cr, Mn, N1, Pb, Sr.
zn' Zr'
Le Ce, V
TI, Ba "1'0
j'.-'tfid --o*er. -
Ca, Sf, Fe. Al. Aig, P. NaK 1'0-16
- - - - -------

L 275lo-66
ACC NRt AT5023950
gamma radiation, the samples were sugjWed to radiochem analysis for the deter-
141-144 91
mination of the fission products Sr Ce , CS and Y . In some samples
140 111 99 95 125 7
the content of Ba Ag Mo Zn , Sb Be., and other isotopes-was also deter.
mined. Macroadmixtures were determined by using spectral analysis and anailytical me-
thods for Ca, Fe, Si, Ba and Al. Flame photometry was utilized for K and Cs content
determinations. Table 1 shows the results of analysis of 50 samples gathered during
the 1960-1963 period in the viscinity of 1kningrad. Orig. art, has: 2 tables.
8j SUBM DATE: 28Apr65. ORIG REFt 014 OTH REF t 001
SUB COM 1
Card 3/3

L 0*7061-67 11 E.';@-(M)
ACC-NM,---7 M21629 G1YLMCE CODE: Woo 916610;@66-166-31-6-2-.6@16@66
UWOD
AUTHOR: Stepanorv, A. V.
0" none K
TITM-: Contribution to the theory of neutron transport in media with random inhomo-
Igeneities
SOURCE: Atomnaya energiya, V. 20, no- 3., .1966, 265-266
TOPIC TAGS: reactor neutron flux, transport phenomenon, kinetic equption, reactor
moderator, thermal neutron
1ABS-IRACT: This is an abstract of paper no. 60/3372 submitted to the editor and filed,
but not published in full. The kinetic equation is written out for the neutron den-
sity in an inhomogeneous moderator whose scattering properties are random functions
of" x (x is the total aggregate of independent variables of the problem). The authors
determine the average neutron densi-byj for which they derived an approximate equation
by quantum theory. This equation is solved for stationary diffusion of thermal neu-
trons from a flat source placed in an infinite moderator with random but weak absorp-
tion. The solution displays the transient, and the asymptotic terms and an expression
for the relaxation length of the asymptotic solution is given. The expressions are
valid for both strong and small-scale fluctuations. If the thermal neutrons diffuse
from a non-stationary flat source placed in an inhomogeneous layer of the moderating
sifustancej the main spatial harmonic of the neutron flux decreases with time in a non-
exponential fashion. Orig. art. has: 3 formulas.
SUB CODE: IBI SUM DATE : WW.65
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I-. and evvii ititich litter itiviible -wratches tuAy it
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IOWA[
00-3
LT
TE PISNUMON, OF UECILNI AL NINNING. AV St pom
v,-Journal
of experimental and Theoretical PtWsics USShp 1947s vol. 17,
This is a theoreticaUdiscussion with only
Aug., pp. 713-723.
brief reference to experimont;@Ll data previously available reparding
th pehonomenen of twinnin;7 in zinc, alpha iron, uismoth, antimony
cadrIum, mat-nesium , and calcite. The author puts fowmard the
0
'twinning in a mechanical orientation of fact
hypothesis that witW
connected *,%ith the anisotrppic modulus of slasticity.,.)f the crystal.
: k
A force applied to th.@ crystal gives rise to an asymmetric distrib-
0
I
ution of the shaarin- stress and this, when the elastic energy
0
0 approaches the value of the energy of activation involved, results
in a mchanical reorient.Ation tainning in the volume of the
cr7si.,l orientated with the lowest value of the moALLlus of elasticity
relative to the plant cont@Aining the applied force. Two distinct
stages of the twirming process areld"th3guished. The first, just
referred to, is an elAstic, reversible mochin cal orient@ation
iw
prooes es, wh6ch results in the fornaton of a twinned nucleus.
----The -a-visible
AS.
twin. 'his g"_r_o_w'_t-h_ c_'on-_tr_a"t_r"y to the fornat on of the MCISMS
purely drystal lattice phenomenon occurs as a result of bounlry
u a A. c displacement and re-uires much lower values of the mean stress*
0
@::::01_10990999699
0
00
;
wool

-909
A. 7 1 _d P,
qiqd@,W by the a llool and I for 10
briag About beg. :ratih Is
tesw, Wutcd PO-5 the .d 00
'SU W06f to I Material UP190- - - ot",
polited, tet G!R Ud.0% w Aft I the 14- we" @fommvd-
st the 11101 tion -.io- iE 1%@kb*lt and
w, in tims, sr" observed @ it' bn at obl,vvd at tol g1k, !
Tbaw slid ,.ukml -[Ak"' miabm is that Lou) 10)
:,ty their an two" Oaln to 01(i MI
V.:jAy ,,@ted twtl- of *I&** dd - "It'no a' Sm l -@Ilth wet . 6
,U raw The tb Ik ;WLA
F1 r:n w4im tbt 'U'dommIall W,
L4reftier"ce. ro*(Clryst. ;jl@ -1 1 the clast
Worplpk- ad -6191'aHstica of of cir- fages (d. 1W d *1 .. CA,
o&&. 6 j@ be OM 9-/*c
,cc, X Odom
j,6bing dkMS
dow 'd For wwo* m A room temp. i. the aipm-w-lcg tb. ..ta -
,owl pwt* an deduc - "Ile im so tbg cltms" tati"
,a jwWqmmtk cWtvas appw.. wo&,,Mifc@ curves; ifferent tmpm-0 Wro"
cu Wei" an, observed sk" W dk'4' jg WxmAW at 0 b temps. the be gumag
the W-R. d the lowlimkd bet's"m I is an to At h T
01 Sabotropy temps.
the Jowtls ar6m. smime, :jtrtbe as" ct 111=0 cIlstion end
ou Those
to tUned bidittin' 0 dbtbKt stegm. (1) an
$We of the [tool itt h of ""tion centers.
,MM,W factor kw tbe fewltimg -0k 6 taki" *."- Vowt re wtable to Xr--
tio .4 vats" 9 34 be elastic defo- uamtim (2) the
Spot 1_ V_CI bo to C, only I @ room temp in-
. C.1ilim 41irediom U ilki am jorgwd at and @@. bT, te'DP t.
3 2 for & . Centers W bowe,,@r, be de-109c"... j, ticuUt Y effiCsf"
that in 11111 is , - 'ri6w In Kcl.
,low '" omit CAWY v im.. of tbrL ddw-dTa-l, they can interval of 20 to oa both Ad"
am .."I'let"trat . CUFV"- c,,w and the pea pair-wise
chstacterimed by 1 01 the "I. stirl 'm gj@jjtjg laractla ap . .1 the fid&
4,ikated in the abspe of tch- the @@-O-rhc ".tch 6 not
-t.,U is dctd. by tbg Orystal
boat the ch and priVen-
I wed a .1 the scm;@," to the ad It the scrat Of
ly low of tu". tt h pUu@ VAng thro" Jn@ Of SyMnict"
fain. rea a I blar"S OYM.. Sinee t c
.1 th. Ai-0-- ts Yet I Surfa,,e. is not a P
g. law up a @11@ Pciffit-
,#,Limt ke io@ Ift d the dics, W to the c--ta
tmw) an I fromm imam
hot cwthPAY Awbocb Wm- cc, P.
tb,WY ad the I u&,A tin CF V"
a. was, .1 man-, coast. of the
X! OR.
V,mg*o miod IOU. A. V. II t
--091 Ito unds, of it.
a
as demo to List

sTF,PANOV, A.V.
USSR/Physics Sep 48
Crystallography
Crystals - Elastic Properties
"optical Limits of the Elasticity of Rock Salt Cry*-
tals for Slip Along the Plane of a Cube," A. V.
Stepanov, Ye. A. Mil'kamnovich, Leningrad Phys-Tech
Inst., Acad Sci USSR, 4 pp
"Zhur Eksper i Teoret Fiz" Vol XMI, No 9
P '76F-7;-
Shows results of determination, by opti6al method,
of elastic limit of rock salt crystals for case of
elip a2lpn plane of a cube (100), and in the clirec@-
tice 11. Establishes relationship of elastic
ll@
limit to temperature.
e2w 9/49T97
4v 1--f I

's lop
A I f. D.,L-J -9 -iii _11i
A
S".0; 339.373
00 U37. Us O@ d mtNMM N P' -
UL Sw~, A. V. &m Mma-tmommu. E A. .00
VSSR. It T73-3 (SW., 194)
Lm X"Wm -On Abser 4017 (IOU4 ME Owho-
in;wed rw @z ayma film 'm aobk
a & 1: le,100) wid im *A ll li [IN". IV. libiA.
776-9). Some detaik of do sanwWN of the too
defonmd ay" obssimd is Wvm4mliow b7
coo
optkW nwibods am Siven. A.
a
0* 4r
AD
boo
t:
Go
L A atTALLUPWAL LlTf*&ILNI CLAWPICAlmo
:TL Ani SN two is slArelema a -v__ too
it K tt 9 9t K ff It It ft MO n
le so 00 0 0 o
00 a 0 0 0 0 010 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0
i

A. V. ALS
"@rrR20. @;voy5tva prochnosti rxAlmerov v oriyentirovannom sostoyAnii. Zhurnal ekspeerLmi.
I t-@!Or-t- cizi" , 194?, wri). 11, S. 973-88.-Blblio-r: 16 ni7.v.
1
,90: Letopis' ZhurnanlInyki-, Statey, Vol. 39, Voskva, 1949

Um/Ugineering Vol) 49
Stress Analysis
Optics
*New optical Method of Studying Stresses in
Polari-zed Light," A. V. Stepanov, Leningrad
ftsiectech Inst, Aced Sci USSR, 12J pp
*Zhur Tekb Fiz" Vol =, No 2 -j'*jr-)7
Proposes now optical method to study stresses
in polarized light. Material used for model
Is crystalline and behaves similarly to aeta3s.
Presents preliminary data on suitable material,
40/49T!51
USSR/Kngineering (Contd) Feb 49
and results of experiments showing possibili-
ties of method. Includes 21 diagrams. Some
show stress lines in color. Submitted 14 Sep 46.
4M
40/49T51

STEPANOV. A. V. PA 48/49T95
USBRAnwelas Apr 49
Clea;Kw
"Cleavage Phenomena," A. V. Stepanov Leningrad
Pbysicotbeh Inat, Acad Sci. ussR 14-1
.1 4 pp
"Zhur Tekh Fiz" Vol XIX, No 4 P 411 - J-0 6
Wave; attention to the fact that prerequisites
for the presence of the cleavage phenomenon in
crystals are to be found in the-anisotropy of
their elastic properties. Submitted 25 Dee 48.
48/49T95

20M. Ow - G%ft- A. V.
Aw. it. 9" 4w,;N-@j) Z41W. Am@ipr-
dt,relopamut of region at 6cW jac;., -wb-hm at aw
In m bodimb-
for OAOJ-Ijy 60tropic ww anfimtru*
Such locid rqjimm c*mWj nj mk,"wom OW
low$. 'a - ne" 0-1`111: -VaL-1. Zn. qums) t
I J, % of 4whielt can the obwrvvd tendip stmwtb in I
Vahw vakd, front, t Ulm:
(tow (YOU111,11 1110111dus). the
grevilk is CIM"Of dtvejop. macro-fracture Must
developubmt of Sommy
fracture is- lu this caw the obomd t,,dk ,,,Wb
is 5-W'%pOa'I" the tbeoretkW. 'l~l~ of The latter caw
art fiax, asbowtop. mica. and PQIYmw9 in the oriented state
such as matund milk. stratclied rubber. dwunkm coijam.
at stretched melatin. H. X LivingstGn

I I I, is 111111mlitti III$ " III u a 36 is 16 111 a m JU it V u x W- W
A a a a U a 1 it V IF it A IZ W JU A- 1 4
tit ..& 1@11 J@tp!
!@j
_
@19.374: Q@o
1111111. RtA"qp tog Ow "I 1wrakJo." R
of IrU-Awomf@oitopk IAidk,. @' @V* V. 1. 1
'
#1 FF
U
A
t
1
.
m
O.
. N"NA. SSSR' Ser. fl:.' 14 (A
)
(1950) fit 911tijun.
Theoirlical- Methotts or repircsentLeilt the chwi,
0 0 a printcrtim of Clost"ni"mVic t%AW4 and Citalitatioj
the Acting urcum In anitirAmViL. butfin am dlicst%@ it.
In cim"ring eIA,4o-anWro* and dmito-kot,ot%
tW40C!S the FORMIng pOinh AM COMWMd. thk? %WC
tif sim-ts dericads on the ansk tvtwccn the dim:v,, -tit
or thl uting foste and the aus of anhAtrory of Ore
mniplc; the direction or mx. sircm. dom
with the direction of "uit. Wintrinxtion: lhc tlitootitn
j of max, wc,t dm not coincide with the dio, t a Ion of
Ibr a,ling forcc: the Valc of sorcss dclxn*J@ .,n I'm 7,
perkiti of 11W atling forte 1C.S. lhc dif[crow, KI%-."
firvies fit pfc'sum and strike W Cry%0%). i" os""@
ir fropic Limmic the cffcct of the concti. of ori%,
tlmdm@ value for Yojjvs;'@ ...... 140us'
xul 41cc.mr-critration [or the dirmt;oin It'llt IIIL' JL_jjj
too
villLw for N'-inj@s nwdijluN I, manik%l: tlwt,: exitt
see
chinwiciiA. Ifthumnt in all ani-A)II00C
owdia. urul conwqmNly Itiologm fumvi of bn:Ak-
dows); th;: j.-.ults of intcraction of an cminal form
tkWAI UJI ill Sign, w. IMMV&
too
I VALLU*G$C AL LITERATURE CLASSWICATOCII too
am,
tol.34.j .4, as db

u is if re)

III, po UP a it
't or a it of
W
4' 1 An I I a (W 0 0 0 1 x 10 1 a a 3 4
Ito
T

01 * 0 0 0 0 O
a I
0 0 0 A 0 0 0 0 o
0,0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0,4 0 0 Is 0 9 0 0 0 a 0 0

STEPINOV, A. Y.
PA 160T104
USSR/Physics - Quartz May 50
Crystals, Twinning
"Mechanical Twinning of Quartzy" A. V. Stepanov,
Leningrad Physicotech Inst, Acad Sci USSR, 4 PP
"Zhur Eksper i Teoret Fiz".Vol XX, No 5
. 2
Considers possible existence of rela ion between
phenomena of mechanical tvinning and elastic proper-
ties of quartz crystals. Submitted 4 Nov 49.
l6ono4

STEPANOV, A. V.
Stepanov,_A. V. The mechanism of destruction of elastic-anisotropic bodies.
The leningrad Physico-Technical
Inst. of Acad. of Sci. USSR
Aug. 10, 1949.
SO: Journal of Technical Physics, Vol. 20, No. 10. October 1950.

Wo - 3AP)
1.1" lu O@ of ardliew - 1,
IV. I* wow* of amm d dO6, A. V.,.Pjjx-mw--
A-ND L A* MILKAMU*W". Zk. LkWi'Trtw. flr..
21. 401-8 (N., 3. 1"0 1- Sm-l-
For rt Ill. im Abstr. 1227 (190). D*Krip6%v-
Slip in the diruction 111411 ot " pkm (110) was
prtxkmcod in crymab of tmk wh by the aMication
of ii awhankal vemicm. The pemness was ffinx-4 and
atxxit 40 fnwnm we reprodumd to ilhatrate the
pticnamnon. The tonpersture was varied arid the
re" n%nessary to cause &lip follmed the chnrW of
:
114stic limit with tcmFocrature. A. L. MACKAY

Mx,o: S.".373
13M no owwm@ of wts" 0 1
V. lbkft@dw&AMm --'IdlphmmdmL
E. A. MlLxAmAmyvw". A.
IA4vrp. l4w. 400-12 (No. J, 1951) 1.
ANW4M.
Mm- expwkmla an dwer"d with PIKAo.
0 No' dk-ift jhM lbf Wkk* of a KO on the
awftv o( a P)iW of rock mat mowft She Wead"
0(fMWt%IMOlhevokwnct4th*CjylW. TIWC%pgfi.
*WK% Qualtimm thg U06 dek'tit*J by A. V. Sftpanov
[IA. IA*wr. how. ft.. 11, edt (1947M A wratch
Was MwJv on SIM "a "(we of an ctydw %ith a
SIWORW MW @ I wo spow WOO BJ4*pf
bow. Laym o( varima IMA nm wm dWW%vd
OR the %trial lhhk-b was examninod in pokFiad lishi.
A. I- MACKAY

STEFA@, JOY, A. '[._i. K.1io @;C V, V. M.
Optical methods of irries'l-gratinE.: centers cif dis-Inte-ration. I. Zhur. eksp. i teor.
fiz 23, 1,11o. 2, i952.
ZR-nIh21-z List of 7@ussian Accessions, Library of Cong ess, Decericer 1952. Unclassified.
- _u , - - @r

o". am
7
.S.S.R., VM;17,271
OW, 49. 607 ;! 4G.-,
dxQt pbMwnw=lM napmPow ow
AMMmImAnd- ThouqZste a the
elastic tbewy of pwbdW! &M e elostle
properties of = gniWro* Mkilual'M be ted
periodic arsys of ,"'OF *91eld"aw" - t
GbWdftl Abst- Characteriguis, thus the-tbWy dft-
Va. 4 differwell equations,ow ..by by finite
in another a"Woub thd of the
Feb. 25o 1954 dowy Will IM ftir fcw Certain
Gooml ad FlWsdool Chodstry 'dkwtfm of the
' I
MCctlonsof God _tw, it opal *M; or pkrm-
elow"to or
Destructim li ob@
"iewwbothe
excuft thi dullic "it a'w' Is crys"
ture ce =,on wd thentlelyn
It :1= b 9A do probh l@d"blectim
MW be huWled IS
r the tbwy or M=bobWk
dedlL
Mom do fift @w dqm& M a
W. the
G*MN& Mo
ftdw do selim of out" a""= (Oak -orlents
phunow). The sts"ou
am I I at,
struedw ON* Ind tosuftv-soolog, and spft. The
MOW
:dm&@Mww- ire dwNued
dab dsjwod@ toinp. :IM
Mow' k
rw Zo. Fl@ DL 0.

T-
Chemical Abst.
Vol- 48 No- 4
Feb.. 25, 1954
General and Physical Chemistry
ol Goals of structural analysis of a deformed crystal In Foi
nection with new data concerning the mec
_ILAnism of at
formatiop. lefiTnov (J@eningrad Pfrys.-XP4, Ina 's
-AMM7=ukN..S...@i.X.,.!ier.
17, 342-51(19&3).-Before subjection to a tied
_c stals of d axQ were scratcYc .. 11% NOW~
Ulu ThTFTm_tch is a source of "artificial"
slips. Photographs in polarized light show how the nucleus
fif slip was transformed by elongation into a slip pattern.
The scratch creatLs surface and vol. changes that are a
function of the extension anti depth of the scratch; the
r suiting slip conserves the optical properties of the nucleus;
selips can be mirror-like-"poi." anti "neg." . If several slip
nuelvi are created in close proximity to one another they
give all interference pattern which can alsa be observed in
natural crystals. Other cases such as the transformation ofs
reversible slip into an irreversible. the crossing of a first
st-riv, of slips by a 2nd series are discussed and it is shown
that in a deformed crystal there are 7 different regions, each
Nith differetit properties relative to recrystn., etc. Slip
growth was studied 1)), taking motion pictures at a speed of
2 frames per sec. The growth of nuclei Is a different process
than their formation anti the elastic limit corresponds to the
load at which slip nuclei start to grow and become visible
@lips. Artificial slip
,we observed on XaCI in the temp.
interval -195' to . However, the growth of slips in '
the system (100) (110) is temp.-depeddent. Tests to re.
move the scratch by IllO showed that the stratch grew in
length and in width, i.e. the rtmanent tensions penetrated
deeper. From these tests it is concluded that the region of
artificial slips is at a depth of 0.02-0.1 min. from the surface
of the crystal. Surface action has a considerable effLet on
slips in the vol. of the crystal. In conclusion 11 problermi
of the structural analysis of crystals are enumerated. to IJA.
solved by x-ray analysis. S. Pakswer

a

U 8
233. An optical Investigation of the stress condition
of an anhotropic plate subjected to a concentrated
force. V. M. KRASNOV AND &-X. _STEPANOV.
Zh. Asper. teor. Rz., 25, No. 1(7) 98-106 (1953) In
Russian.
See also Absir. 5739 (1953). Photoclastic methods
were used to determine the stressed state in an
anisottopic plate cut out frorn a single crystal of the
60 mot.% TiBr/40 moW. Tit alloy, so that the plane
of the plate coincided with the cube face, a concen.
trated force being applied 4long the cube amb, The.
apparatus used Is described In some detail. A fair
agreement was found to exist. between experimental
results anCTa7futs-c-ak&-tc-d-rr-o-m-]hE-m-od6lFZF-
elasticity. F, LAMMAN

USSR/Physics Crystallography FD-58,,,
Card l/i1 Pub 153-1/22
Author Stepanov, A. V. and Donskoy, A. V.
Title New Mechanism of plastic deformation of crystals. I. Study of
laminating process by an optic method. II. Determination of
crystallographic characteristics of the laminating process.
Periodical Zhur. tekh. fiz., 24, 161-183, Feb 1954
Abstract Describe new mechanism governing the plastic deformation of crystals
called lamination, first discovered by A. V. Stepanov (Izv. ak. nauk
SSSR, fiz. 797 (1937)). Consider thi's phenomenon, together with
sliding and twinning, a common property of all crystals, including
metals and alloys. Give detailed method of investigation, tables,
graphs and pictures. Indebted to A. L. Shakh-Budagov and V. A. Mos-
kiyevskiy of Leningrad Mining Institute. 27 references, including
7 foreign. Reported in the Leningrad Politechnic Institute im M. I.
Kalinin in May 10.49 and at a meeting of the Commission on Stability,
Acad Sci USSR, in May 1952.
Submitted August 15, 1952

STAPANOV, A.Y.
phase transitions in austenitic steels under the action of stresses.
Not. i obr.met. no-5t42-52 N 155. (NUIA 9:3)
(Steel alloys-HetallographO

C c -cry US,"R/Solid Stctc "hvcic-- Trrn-formation in E-5
Colid Fcdios
Abs Jcur Rof Zhur 19-,7, D;o 6632
Am,thor !Acpanov, A.V.
Titlc Investigi-tior. of Mhe @c-rcTrtion of Z-114sphorus in Steel by
th,@ AUtorr-diogra,-'iY ' ct:icd.
Orig.. Fub i-:ctv.I1ovodeniyo i cbrf..bo'L.Ir 19@;:.@, 110 7, 555-10
Abstrect : -1-.-o abstr-ct
Card : 1/-,

"'M
S.'N
MW
q
jg
C',-qrd- .1/1 Pub 146-15/2@;
Author SteDanov A. V. and Eyduss I. M.
Title Relation of Elasticity constants of single crystals of sodiLun chloride
and silver chloride to teuperaturi,
Periodical : Zhur. EksD. i Teor. Fiz., 29, No 5, 669-675, 1955
Abstract : Research, started ifi previous works by A. V. Stepanov (Sow. Phys.
6, 312, 1934; ibid. 8, 25, 1935; Zhur. Tekh. Fiz., 19, 2051f 1949;
ZhETF 25, 98j, 1953) is continued. Results of determinations of
elasticity constants of single crystals of sodium chloride and of
silver chloride are tabulated in a temperature range from room tem-
perature to the melting point. Indebted to Ye. M. Yevstaf'yev, and
A. L. Shakh-Budagov for discussions. Thirteen references, includin.-
five foreign.
Institution : Leningrad Physico-Technical Institute, Acad. Sci. USSR
Submitted : March 26, 1953

i."- -I;':;I /_I@ /'V , v,IA - @"'
C.-tcocry : USSR/Solid Et@itc `hvsics - ;'ec@,mierl Frorcrtlos of
Crystrls and 7olycryFtalline Co,.-.rounds
."Ibs Jour : Rof Zhur - Fizikr,, No '/, 1?57, No 67-177
.".uthor : Zhitnikov, R.;.., Sterenov, A'V.
L'S qR
ins+. : Lciningrf@d Fedap@
Title : Optical 7'.othod ol Investigr-tion of Averaged Stressed St-tes
in Fine Grain Fol,ycrystnls. I. Frcp!?rttion of Fine-Grr,.in
Silver-Chloride lolycrvotr-l Srocinonz.
Orig Rib : Zh. tokim. ftziki, 1956, 26, No 2111, 772-778
11,bstract : ilk. is prc,-@,osed thnt silv@-r chloride be used r@s P. meterirl
suitnble for tho solution of vnrious -roble!:is in elasticity
iind p1poticity of' jjolycryrtPl-i by optic-@I mcthods, for it
has a considcrable riczc-optiuPI ectivity and its structure
is similpr to that of @-ietnls, Fine-grain speci-.ens, neces-
s-,ry for the -study of :,F-croczcorically averaged stressed
strtos in r6lycrystRlline nedia, were prepared by annealinp-
for 1 hours ot !'%o, bars (or rods), pressed with variciis
dejaroeF cf deform-tion froi2.. himh grade Ac-Cl in-ot. The re-
crystnlliz@!d b@_,rs with crrr@in diriansions 0.1 0.3 --L!-, were
Cr,rd 112

1:
Ontegory USSR/Solid State Fhy.9ics - Mechenicel 'ropertics of E.-9
CrystrAs and Folycrystalline Ccmpounds
A.bs Jour Ref Zhur - Fizika, No 3, 195-7, No 6777
rolled into ribbons arproxirlately 24 uLn'wide :7nd approx-
i---,ately nr. thick, while the rods (with grcin dimensions
0.05 - 0 1 =) we're pressed into strips with transverse
sections 10 x 2 irm. Both types of rztripe have a similar
structure and consist of grPins that have R ribbon-like form
and arc ntratched in the rolling direction or in the pressing
direction. To obtein fine grain specimens without a re-
crystallization texture, the rods were upset between steel
plrtes into plpne-prrallel leminre arproxi@.iatcly 2 nim thick,
which acquired after 12 hours' annenling at 1001 a fine,
very unifor:i equilibriu--i grFin @-.,.apsurinl- 0.051, -- 0.07
Cvrd 2/2

T C I I
11 -
Ortegory : USSR/Colid Stvte Physics - ',:echvnical Properties cf 7-9
Crystals rnd Folycrystalline Compounds
Lbs Jour : Ref Zhur -- Fizjkv, No 3, 1957, No 6778
Author iZhitnikov, R.A., Stenanov, A.V.
Leningrad Fodago. al , s TUuT-
Inst 'q, USSR
Title %Optical Pleths9d of Investigr%tion -of Averaged Stressed States
in Fine Qrain Folycryctrlo. II. Photoolastic Effects in
Crystals of tho Cubic Syrtem in the Once of Plane Loading.
Orig Pub i Zh. tokhn@ fiziki, 1956, 26, No 4, 779-785
Abstract On the basis of the Fockels theory and Yrasnovis work on
pieze-optical pheno-aena in crystals, the euthors examire the
photoelastic behavior of a ple-ne-rarallel plr-te, cut in Pn
arbitrexy direction fror, a crystal of the cubic systera end
placed in a plane lorded state. The resultant relationship
between thc opticr@l pat't,, differences of two plano-polarized
boens end tho princitel strosses makes it possible in nrry
particuler cases to obtain purely-optice.1 solutions to the
probler: of thc, plen-c-londed state; nv2ricly: to find the
Card 112

ZHITNIKOV, R.A.; STEPAMOV, A.V.
------------
Optical method for investigating neutralized stress states in
fine-grained polycrystals. Part 3. Photoelastic. (piezooptical)
properties of polycrystalline silver chloride. Zhur.tekh.fiz. 26
no.4:786-794 Ap '56. (NM 9:8)
1. Gosudaretvannyy pedagogichaskly institut, Leningrad.
(Silver chloride--Optical properties)
(Photoelasticity)

STEPANOV, A.V., BOBRIKOV, V.P.
----------- I
Temperature dependence of the photoelasticity limit in the system
(111); [0111 for table salt crystals. Zhur.tekh.fiz. 26 no.4:
795-799 Ap '56. MU 9: 8)
1. Leningradakly gosudarstvannyy pedagogichookiy institut.
(Sodium chloride--Optical properties)

STEPANOV, A. V.
"On the Qtudy of the Physicomechanical Properties of Heterogeneous and
Anisotropic *ia," paper presented at tbe First All-Union Conference on
Tectonophysics, Moscow, 29 January through 5 February 1957.
Physicotechnical Institute, Academy of Sciences USSR
Sum 1563

STITMOV, A. V.
"On the Problems of modeling Tectonic Phenomena," physicists L. M. Kochanov,
Ye. I. Edellshteyn, G. V. Vinogradov, G. N. Kuznetsov, M. P. Volarovich, and A. V.
Stepanov,and Geologists F. I. Vollfson, V. A. Aprodov, 11. 1. Borodayevskiy., and
YU. S. Shikhin
paper presented at the first P11-Union Conference on Tectonophysics, Yloscow,
29 Jan - 5 Feb 1957.
Sum 1563

@m(i '@ VI'l A NOV, A.. VI--
I erieous Media.
It' tj'illt,@; tul'I Fit, 1.111 f-led corldit'lon cX LardriaLed Ncnhcmoff
Voprosy dinami?i i prochriostl (Problems of Dyriaull@-,u and L'.*U-enjYLh), Rigin, Izd-vo
AN Latviyskoy SSR, 195S, 17-(E u,p. (Sbornik Statey, Inst. mashinwiedeniya, AII Lat MR,
vyp - 70
Tlne boo'K. is a colie4,tion of ten research papers, prepared by
Acad. Sci. Lat SSR, Latvian State University and the Riga Red Banner Hi.g."ner
K.
Military School for Aercnautilcal En'-ineeri-,-

STEPANTV, A. V.
"The Slipformation Process in Crystals of Sodium Chloride and Silver
Chloride,"
11 @
1!; ir
paper presented at the Confe.on Mechanical Properties of Non-Metallic soli'ds,1;, fiF
Leningrad, USSR, 19-26 may 58. __1
Physical-Technical Institute of the Acad. Sci., USSR, Leningrad.

S/124/61/000/012/033/038
D237/D304
AUTHORS: Golldfarb, V. M., a4kqj.@@
TITLE: Elastic constants and stress condition of
stratiform heterogenous media
PERIODICAL: Referativnyy zhurnal, Mekhanika, no. 12, 19619
6, abstract 12V33 (V sb. Vopr. dinamiki i
prochnostig no. 5. Riga, AN LatvSSR, 19589 127-
158)
TEXT., A stratiform medium is considered, where each layer
consists of a different material. The medium is put under stress
in such a manner that mean stresses in each layer are constant.
It was shown that the given medium can be considered anisotropic,
and the method for determining elastic constants in an aniso-
tropic medium with elastic constants of each layer known was
given,, As an example, stretching of a stratiform model was con-
sidered,, Bach layer, in this case, is shown to be under a
Card 1/2

AUTHOR: Stepanov, A. V. 129-58-?-15/17
TITILE:Frva1Pj$&t16n of Carbides During Tempering of Alloy Steels
(Vydeleniye karbidov pri otpuske legirovannykh staley)
PERIODICAL: Metallovedeniye i Obrabotka Metallov', 19585 Nr ?,
pp 59-61 (USSR)
ABSTRACT: A review of Western practice based on information
published in British and American literature.
There are 4 references, all of which are English.
Card 1/1

.A:;THOR: Stepanov, A. V. 70-3-3-35/36
TITLE. The Theory of Cryz-tals of the Rare Gases (K teorii
kristallov blagorc,1njkh gazov)
0
PERIODICAL: Kristallografi-,a, 1958, vol 3, Nr 3, pp 392 - 394
(USSR),
ABSTRACT. Various proper".ies of the rare gases can be estimated
from the gas kinetic relations and from the rule of Leonard-
Jones; U is the lattice energy equal to X the heat of
sublimation, M is the modulus of compressibility and the
characteristic temperature. Using well-known formula:
VU p.D = 8.42 D Kcal/mol; vM = 1.34 k/k r dynes/cm 2
vC M 'P_/@ . The formulae were made appropriate to diatomic
molecules so that the constants of the wystal could be related
to the constants of the molecule and the influence of the
condensation of -the atoms on their interactions estimated, For
the calculation it was assumed that the smallest distance
between atoms (k r ) was equal to the equivalent distar e (m')
between atoms in a diatomic molecule and that the crystal was
face-centred with co-ordination number 12. A table of the
Card 1/3

The Theory of Crystals of the Rare Gases 70-3-3-35/36
properties of the molecules and crystals is given for He, Ne,
A, Kr and Xe where the follovering data are given: Experimential
data for a diatomic molecule., constants in Leonard-Jones'
e-,T-r-e s sion, D in kilocals./mol, m and K experimatal
data for real crystals, k x and i-; properties of
r )
V_
the cr@,stals as oalculated, U, VL11 and cozparo_scn of
I 'Ir%/U V
t
heoretical and ex-perimental data for crystals, LIVE
vi:
,.j/ and RT n R is the gas constant, k is Boltzmann1w
constant, D is the energy of dissociation and Z is the
force constuant - the superscript V presumably indicates
calcula4-pd values. The ar-reement is about 2011'o' in most cases.
The foliowincr approximate relationships betveen the cryst-al
constants a s oiii e b e in ly "nown k
--e found, -1g previous r M
X @ U 1/2 D T T b.p. T 0. 56 T 4 -@-
M.P. b.p. cr-I
T D = 6,10 1/2 D T 3.60 x 102 D
M-.P. 3.58 x 10 2 b.p. 2
6 - 10 1/2 D Tcrit. @ 6@5 x 10 D 1.08 x 10 112 D.
Card2/3M.:a above s-hould be cl-Onli cable also tc othei,