SCIENTIFIC ABSTRACT KURT, V. G. - KURTEPOV, M. M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000927810010-3
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 13, 2001
• Sequence Number: 10
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

25989
Ionized gas and fast electrons ..... S/56o/61/000/006/007/010
E032/Ell4
Ref-33 J.A. Van Allen,
Ref-5: J.A. Van Allen,
Ref.6s J.A. Van Allen,
J. Geoph. Res.,
Ref.llt H.C. van de Hulat.
London, 1957-
L.A. Frank. Nature,
L.A. Frank, Nature,
C.E. McIlwain, G.H.
v.64, 271, 1959-
Light Scattering
V.183, 430, 1959.
V.184, 219, 1959.
Ludwig.
by Small Particles.
Card 4/6

t-ft-1/6 I Pf~ 10

'v
-/I. t !j
;u. moRs Kui-~, V,G, and Moroz, V.i
I Lf fhe potenttal of' a metai %pnt,r- in -.n~erpllanetarv

No
1961 pp 7h
i'FXT The JL~sign and ~interjjr,t,xl I ta I n e x 1) e r i III zi t.4
in interplanntazy a t, n o c e s s i t a t e*,I I 1, 1, fI 1- i z u- 1, 11 v p!) t v n L i ,i
of the cowainvr :.itrrying thc- pay.ca I a;-ithcr- report
an atteml)t to r-,,A~e th-~s problem in * h-, I -pr-)ximation b,,-
inclusion of oniy the tiv-)st importtan- t r on ; , I n,~r'!, il~4vd w! th
'~cviet space rt)-k~~ts were i1pproxim.-itt hi-rit jit III jorm alid
hen-.-e the- solution5 obta-ined in ihi~ I-, i ,rit i)iijis-r jr,, t, qjct~r'jicd
with spheri--ai metal, bodivc, I h- I, fit ,:I ...111 1- toltric-1 from
th-- condition that tho total cut-r#-,rl*k
J

expre3s! on i th(- irrf,ji, of oloi trotis
from the interplanetary pla-ima: 11 *.h,
uti ,zj~, ,ii tailiation-
U
..Ard i/5

Fhe potentittl of a metal. sphert, 7 100710 10
+
be).t ele~~trons, I is the pla-'111a 'tall -Ilrront ~pz-oton4).
I rp is the current 11 of radiation-biAt pzo~-)ri- .1 li ; S t lie
phot.oeiectric zlirrent and f B is 1ki". -17 1 v fit of !~(!~'ondary
electrons prodti~.ed by rndtation-t)el, Arid protons
!'~ ,I Gringauz nnd N fxh~ Ael Oman 1 11vt t f 6 1. No. I ;. ~ 21 ~9 1957
have con s I d t-red t he ann Logow~ prob I i m I i r I I I I -I I ear th
sa te 111 t e g : b y tie gi v : t i ng a I I the w!( -i : ~ I except for I
and I Tlits I i perniL.4sible at IVk' I V 1 W A I ( 1 t it d es wh e e p 3)
the i0 ri. I n d e I e r t r on , o n c on t ra E i o n.--; a r --, III gii groat*,r than 10 cm
-io tha I; the pho to.-.- tir rent and rad , a t ton I)- i t ( i~- tr,)n.'S have Li t tle
effe:t on the prtentiaL In the ol a -ipacv r-)~:ket, such
simplifications are inadmit3sible, 1hc prv!,orit authors show that
if the temperature of the interplanetary va,~ 1,--k rs~-wmod to be
104 "'K and th(- photo p-Irrent is 21-5 x 10,I)
~thcse are the
most probable value-i available) then ovrr the, ii1timinated part of
the trajectory the potential of the ~.(-.~ntainr,~r Fhotild Lxe betive S n
--2,5 and 1 4 . if the ion coricentratic,ri i,~ greater than 14) '.~M- ~
I'lle effect of' tile -1,L-If~t3c t'Leld and the motion of tile. c('ntalner
has a small eft*ect (I - 2 V) on the pulential Thi,, Jiange can be
Card 2/5

The potential of a metal sphere s/56o/61/000/007/007/010
E032/E5!4
neglected in comparison with other unknown factors, In thp region
of the outer belt and over the illuminated :;art tit the trajectory,
the radiation belt electrons make a sinaller cojitribut;on than the
otlier factor.9 tnvolved, at loast during quiot (loy-.4.
However, large negative potentiaLs(up to afv 1"k't
excluded if the present Information about the high csn,:#--ntration
of soft radiation belt electrons in tlie outur belt j5 :-or'rect
and the Interplanetary gas in the region of this belt is
sufficiently rarefied., Tf this is so,. then cotisideiabi~--
negative potentials can appear even with relati iAv 1~,w f"luxes N
0
For example if,~he loy concentration as I and
N z 3 x 10A cm se.- t then U -- -25 V, It is also found that
trie potential Is riot very 8ensitive to (hangek iii the diameter.
Small departures from the .9pher-tal f(PIM alSO 11,1"Ci litt.10 OffOCt,,
F'~g.,2 shows an example of t e determputtloii of tile, p,~tcnti-xl U
for the case. n 1000 cm- Ir 10 1 " K X 10-
2 e 5 pho t (j
Otmp/cm (I photo 10 esu) I proton current I , 2 1 p +IIphoto;
electron current I
4 ie C 111 .4 0 C
.-ird 3/5

The potential of' a metal sphere P) 1 /000/007/007/010
10
5 1 e+ I re at N0 , 3 x 10 c III c I t 0 0 and
10 -2 -1,
Tre : 0, then U = -2 V, if I photc, to "S11 MI'l :0 - io cm sec
then U -. -15 V) There are 3 figures 3 tiIb1c,, and 31 references:
11 Soviet and 20 non-Soviez- I h v fo u rlatc9t Lrg.%~Iitih-langvAge
rcl~erencos read as follows,, H~ E,, H.-I tit or rv,gi-r, N, R. Darnon
L~, A, Hall - j. Gaoph, Res. , 64 ~ 961 1951), M, WI Pvc-3. W, A. Rense.
J~ Geoph~ Res- 64. 125-1- 1959~ J, Van Allen L, A, Frank,, Nature,
184 219, 1959 .-1 J,. Van Allen,. 1'ru(iy Mezhdunarodnov kotiferentsijL po
kosmicheskim lucham Vol.,M, izd-vO AN SSSR Moscow 1960
fProvaedings of the International Conference on Cosmif- Rays),
Card 4/5

89686
S/026/61/000/002./001/003
Al66/AO27
AUTHOR~ Kurt, V.G - --------
TITLED The Upper Atmosphere and the Interplan-ttztry Madium,
PERIODICALs Priroda, 1961-~,.,No. 2, pp. 23-30
TEM The article presents data on the structure and composition
of the upper atmosphere, geocorona and interplanetary medium, as derived
from Soviet space rockets and satellites. Data on the density of the
earth's atmosphere at different altitudes, determined by observing the
diffusion of sodium vapor$, are presented in graphic form in Fig, 2.
Studies of the chemical composition of the atmosphere have shown that at
heights of around 100 km oxygen molecules ire dissociated to atcms, while
nitrogen molecules dissociate at greluter altitude, The limit of complete
dissociation of all molecules lies above 300 km, Above this point the
atmosphere consists practically exclusively of nitrogen und oxygen atoms.
Diffusion separation is effective from approximately 200 km upwards, At
heights of around 1,000 km hydrogen is the predominant gets, until eventu-
ally the earth's outer atmosphere consists almoot excluoively of hydrogen.
Card 1/6

89686
S/026/61/000/002/001/003
A166/AO27
The Upper Atmosphere and the Interplanetary Medium
This phenomenon is aided by the fact that the hydrogen atoms may acquire
velocities greater than the first cosmic spe%d in the process of colli-
sions. Such atoms will describe ellip,
ges ;.tzia return to the atmosphere,
while those atoms which have acquired velocities greater than the second
cosmic speed will be dissipated in space, The results of studies of the
electron density of the atmosphere at heights of 100-1,000 km are prmsent7
ed in Fig. 3. The results indicate that previous conceptions of the
ionized layers D, E, F, and F2 were erroneous. In fact electron concen-
tration varies regularly with height. Ionized molecules of three types
have been recordedi molecular N~l molecular 0" and molecular NC~.
2 The
latter molecules become involved in dissociative recombination to form
neutral atoms, The geocorona consists of neutral and ionized hydrogen.
Studies of the neutral component made by observing the reoonance scatter-
ing of the Ly. liae by the hydrogen cloud have enabled scientists to map
the isophote8 of the night sky to depict the distribution of neutral
hydrogen in the environs of the earth (cf. Fig, 4b), Recent 3tudies of
Card 2/6

89686
S102 611n.001CO210011003
A166YA027
The Upper Atmosphere and the Interplanetary Medium
ionized hydrogen have led to a revision of the previous theory that the
earth's atmosphere ends a few radii's distance from 'the earth and that
the density of the interplanetary medium is approximately 1,000 ions/cu
cm. Indications are thatt 1) the earth is surrounded to a distance of
20,000 km by ionized gas. with a density of around 1,000 ions/cu cm; 2)
the density of interplanetary space is no more than 100 ions/cu cm and J.
perhaps considerably less; 3) the transition from oxygen-nitrogen plasma
to hydrogen plasma occurs at a *distance of approximately 2,000 km. The
author explains how the former misconception of the density of interplane-
tary medium came about, with reference to Academician V.G. Fesenkov's and
Birmann's views. There acre 8 figvree, 1 table and 3 Soviet references.
ASSOCIATION: Gosudarstvennyy astronomicheskiy institut im. P.X. Shtern-
berga (State Astronomical Institute im. P.K. Shternberg)f
Moscow
Card 3/6

KURTO Y. G.--(Mojqkva); AVEDISOVA, V. S. (Moskva)
Contemporary concepts of the nun. Piz. v ehkole 22 no.4t9-16
JJ-Ag 162. WRA 15:10)
(Sun)

S/033/62/039/003/oo4/oio
Z032/E114
A
TITLE: A study of the spectrum of the solar corona in the
wavelength range 7800-1200 X during the total solar
eclipse of February 15, 1961.
s
PORICDICAL: Astr-onomichcskiy zliurnal, v-39, no.3, 1962, 439-444
TEX r; The eclipse Was observed from an aeroplane flying at
10000 111 ovcr Rostov-on-Don. Such observations have not been
carried out before, while the infrared spectrum of the corona bas
only been studiod under normal conditions. The above spectral
region includes four coronal linos, namely: 7892 (Fe XI),
8024 (Ni XV), 1047 and 10798 (Fe X111)- The reflection grating
spectrograph which was used had a dispersion of' the order of
50 jok/nim and incorporated an electron optical image converter.
The spectra were photographed from the screen of this converter.
The spectrum of neon was recorded at the same time for calibration
purposes. Alto-etbor 33 spectrograms were obtained containing
eight chronospheric and coronal lines and six unidentified lines.
The data obtained are given in Table 3.
~q
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A study of the spectrum of the ...
Of the unidentified lines X 11304
coronal lines.
There are 5 figures and 3 tables.
ASSOCIATION: Gos. astronomicheskiy
(State Astronomical Instituto
SUB,MITTED: June 6, 1961
S/033/62/039/003/004/010
E032/E114
and X 11386 are probably
in-t im. P.K. Shternberga
imeni P.K. Shternberg)
Card

study of the spectrum of the ... 5/033/62/039/003/004/010
E032/EI14
Table 3
-,i~;Ilt- I (lentif ic a-' Wk X , A Light- ldcntifi-~ W,\
,region tioll Yegion cation
)8 1 chromo- ca 11 1079VCorona Fe XTII 10 - 2
:sphere
7780 Chromo- (01)2'
7775 2
T I
542;
Ca
]I
isphere
U
8562:
Ca
Il
78,561 2
11301, 3. 1, 21

lo938~ 11355' -
,

7892!Corona
PC
XI
1 11386~ - +
it, 1 3
il0747 11 q P e XIII 20 2 11585 - 2
w~, = erjuivalent %.;i d t h
Card 3/3

ZIGELIP Foliks Yur'yevich;.AUFq,-_Y.G., kand. fiz.-matem. nauk,
nauchnyy red.; ZUBKOV, M.A., otv. red.; YEGCWjVA, V.K.,
tekhn. red.
(Radio waves from outer space] Radiovolny iz kosmosa. Mo-
skva, Detgiz, 1963. 141 P. (MIRA l6s6)
(Radio astronomy)

KURT, V.G,
"Advance In space science and technology." Reviewed by V.G.Kurt.
Astron.zhur. 40 no.2092-393 Mr-Ap 163. (141RA 160)
(Outer space--Exploration) (Space vehicles)

KURT, V.G
Neutral hydrogen in the vicinity of the earth and in Interplanetary
space. Usp. fia. nauk 81 no.2%249..Z70 0 163. (MRA 16:12)

KjjRTO V.G.j KkPLANO S.A.1 KATYSHINAt V.V.
0 Measurements of scattered U*V, radiation ( 1216A and 1300A) in the upper atmosphere.,w(TWR)
eprt- submitted for the COSPAR Fifth international Space Science Symposium, Florench,
Ita3.y, 8-20 may 1964.

u!a2=066 EWT W/W.4VO APF (01FGGA1dX(h) RPL. IdWIGSlaW 7 t
ACCESSION NRt AT5023559 UR/0000/65/000/OW/0051/0051
AUTHOR: Kurt, V. G,
atmospherelor
the earth
TITLE. Total amount of neutr&1 hydrogen in the upper
(Thesis)
SO=E-1 yuznaya konferentsiya, o fizike kos J~qheshq o r st~ 9~y
eso _p_ _ __A - _g__-p _p_ qn qLt_1fQq;qVj
1965. Issledovaniya koamichoskogo prostranstva (Space research); trudy
ntaii. Moscow,, Izd-vo Nauka,
oRera 196% 51
TOPIC TAGS: upper atmosphere, optic thickness, atmosphere model, hydrogen line
ABSTIUiCT; The dependence of the theoretical value of the albodo of the earth's
atmosphere on the total optical thickness for the line contor was obtained by
solving the equation for the shift of L -radiation for the spherical case con-
sidoring shadowing. From those results and several observations It was fouad by
uziDg the Baton-Fattorson thermoophere model that the concentration of neutral
hydrogen is 107/cm3 at an altitude of 110 km and 2.5 105/CM3 at 200 km for the
solar dip angle of about 300#
ASSOCIATION: none
............. ..

ACCESSION NR: AT5023559.
SUBMITTED: O2Sep65
NO REP SOVs 000
Card 2/2
ENCL: 00
OTHER: 000
SUB COLES Es

L 34~o_66 Evrr(l)/Fcc EWA(h) as/qw
ACCESSION NRg AT5023572 UR/0=/65/ooo/ooo/oin/o=
AUTHORS: Kaplan. S. A.; Kurti V. G,
U~/; 01
TITLE: Scattering of mediation in the aper atmosphere of the earth (Thesis),
1214 V"~5
SOURCE:~4.Vsesoyuznaya konferentsiya po fizike. koamicheakogo prostranstva, Hoscova
njy& kosmicheskogo, prostranstva (Space research); trudy
1965. IsBjedova
kofferentaii. Moscow, Izd-vo Nauka, 1965, 111-112
TOPIC TAGS: solar radiation acatteriug, solar radiation absorption, upper atmos-
phere, atmosphere model, optic thickness
f 0 1 1300 X) radiation in the upper atmosphere
ABSTRACT: The scattering o
of the earth is considered, using the double layer model of the atmosphere of
81 d
great optical thickness. Scattering of the incident solar radiation is as
to take place in the upper layer without absorption. Ab3orptic-n by molecular
ox, -in tholower layer whero-it is aseumod-that the albodo per unit---
ygen occurs
scattering event of A increases linearly with increasing optical thickness, The
solution of the shift equation applied to thic model of the atmosphere indicates
that tho intensity begins to decrease sharply at an altitude of about 160 km,
which agrees well with observation.4,~.Tho original article was published in the
;Card 1/2

L 3430-66.
ACCESSION NR: AT5023572
Journal "Kosmicheskiye iasledovanivat" 3,, No. 3,, 237P 1965,
ASSOCIATION: none
SUBMITTE Dt O2Sep65 ENCL: 00 SUB CODEt 980, AA
NO REF SOV. 001 OTHERs .000

IT
L 41113-6 Eli r (1) 16 X (M) /CWT (m) 1ZdG(v)1FCC1FX-41-UC (t) ITIZdA (h) Po-U/Pa-5/
Paj-4 Pe-2
ION '0964PP(c) GW
A
CC ST
CCES ION N~?eL UR/0293/65/003/002/0237/024
jAUrHORt Babichenkg jtj Kapj pjA.
I I., Karp _L ja __A: ,Katyusktn!,, V._Y..;_ 1.
Kurt, Pu3tovayt, H. M. -, Shifrin, A. V.
TITLEz Investigation of scat'tered ultraviolet radiation in the upper atmosphere.
1. Equipment
SOURCE: Kosmicheskiye Issledovanlya, v. 3, no. 2, 1965, 237-243
TOPIC TAGS: UV r&dist1on,rA4Latj2n r
_9~znte?, photon counter, Geiger counter/SFM
radiation counter
ABSTRACT: Photon counters used in investigations of scattered UV radiation in the
upper atmosphere are described. The two counters, of the SFM-1-ty-pe, are filled
with NO and have LiF radiation windows for measurements within 1050-1340 X. The
counters were selected for their narrow sensitivity band and comparatively high
quantum yield (0.01-0.1). Pulses from a counter are recorded by a tvo-channel i-
logarithmic rate meter vithin the interval from 2 to 2 x 103 pps. However, slot
width and brightness vere selected so that the counting rate does not exceed
1000 pps, which keeps it within the linear portion of the counting cbar&cteriatic.
i Card -LIZ

L 41818-65
'AccEssioN uR: Ap5oo964o 0
The operating voltage of the counters is 1000 Y. The counter circuitry includes a
preamplifler, trigger, pulse normalizer, storage circuit, transistorized d-c ampli-
fier, BUPP1,V-VOltage regulator, and high-yoltage converter for pover supply'. The
modular design of the system provides a hIgb degree of miniaturization and rella-
bility. Orig. art. hut 5 figures. KM)
ASSOCIATIONt none
SUBK=: 23,Tul64 EXCL: 00 SUB CODE: OP, *A,
NO REP 80vt 005 OTHER: 002. ATD PRESS: 3235

AUTHORI FatXuikhLjjdL__V'r__V. I
T I T L EMeasurements af the-scatterad L.-radieLtion in the upper at--
~71 r.asphere at km.,
8.o t; P C E a mL chaskL ye LayladdvaaLyat v, 3, no, 2, 19650 2 43-241
TOF1C TAGS t Scattered La radiatton, geophysical rockct, rocket
PIS _. RA CT En 1963 meagurements of acattered L.-radfation have been
ca,~ri,~d QuL by means of geophysical vocketa in three fiLghts. The
conref-af-v durLng the first flight wnv painred towares the zenith'.
t1i~- sc-cand and third flighte the contalwir a-li; rotated descrl~-
arL of-180* which paaseJ through th~~ tkadlr. ch-c zect, aud the
gnril "f thc one c-2vnter char-
Z-~, k- i. tffwrj Counterv ivere uaud; the sit
a! of the
Of thcr arl: tkAPIPLAt Al"d tha clf;,n
~ccoiAt c,-urtter:-reldted C he totdl of tu 01 and L. lines*
-,,tLug Lhe firet flight rieneurementg w."ve maele ea 012 vhcle trajectcr~___
,,L 120 km in the ascent avid finlir:binz at 80 kTn, in the

Card 2/2

L 4!S15-65 Po-4IPc-5/Pa-4/Pi_4 Tyr
ACCESSTON INR: AP5009641 1*293/65/003/002/0251/0256
AL"I"OR: Kaplan~ S
T-ITrZ- :17he theory of the resonance seaftering of L sub Alpha radiation in -tho
igeocorcna
SOURCE- Kosralchaskiye isaledovantya, v. 3, no. 2, 1965, 251-256
~TOPIC TACS: geocorona, L sub Alpha radiation, resonance radiation theory, upper
hydrogen distribution
ABSTEAG1% The authors point out that the various papeLs which have appearcd in re-'
CCIIIC Velirs dealing with rocket -obs ervat iori~ of scattered Ld(-radintion in the upper4,
phere of the Earth, 'while they. have provided an approximate solutiol of this
problcm in the thpory of scattering with allowance for non-coherencei cannot be
r(,-pr,-_Fcr,t:ed in the form of graphic formulae. Moreover, the solution is Valid only
all, or large optIcai thicknesses E . The need. for 6irmple, graphic :5oluttons,
for any 'I , is emphasized, and it in polnLed out that in tione of the worka
wl-~ich Inave thus far appeared has a concrete case of scattering in the L c0, line been
studied. The best approximation in this case is seen to be the step distribution.
Spectel attention is called to the fact that, under real conditions, the distribu
the scatter
ing, hydrogen atomn cannot be described with sufficient accuracy
lic2

- ----- -- ------
L 4lA_1r5_'1'5 .0 '1
ACUSSION' NR: APS009643
either in a model of plane-parallel layerr. or in a spherical-symmetrical model,
since the density varies during a 24-hour period by almost one order of nagnitude
For this reason, the authors viL-41 as unadvisable any refinement of the solutions
Uirough a strLccer consideration of the geometry of the problem. In the present
article, a simple method is outlined for computing the intensity of the scattered
atmosphere for different zenith
radiation in
,,differences of the Sun. n. is- exLremety graphic ooltition to the. problem cTf,L-.N
radiat-lan scattering in the geocorona will make possible the analysis of observa-
tion-derived data, even when such observations have been effected under non-stand-
lard experimental conditions. In their calculations, thz authors disregard true
absorption. For an interpretation of the observational data it to necessary to
~switch ovei from optical depths to a scale of heights. For this, purpose, a combined
rzodel of hydrogen distribution is employed: below 500 km according to Bates and
Patterson, and at greater attitudes according to the ballistic model of SiDger and
Op ik. The theoretical curves derived by the method presented in the article shcrw
.excellent agreement with observational data, differing from the latter in their
,graphic character and extreme simplicity, thus permitting a rapid examination of
all Possible cases. Orig. art. has: 3 figures aud 15 formulae.
1 SMITTM: . 23Ju164 ENCL: 00 SUB CODRt- -AA,---
OTEMRt 006
LO PF ~OV- 004
2 AV

SOURM Koamicheakiye issledovaniYa', Y. 3, no. 2, 1965, e56-26i
Topic TAGS: airglov intensity, light dispersion, gij~e o; integral radiation*
Doppler contour, Loreatt contour
-AM %
h height
RACT,-. ----For-: purporsesr~o 76 Ur L Mte'115_4 ty I t
or_ PUrPoGesr7Ar____AV_WW_U
_ilmo4h~ife I __ 4ide -A
-love A~
the whofe7 L nto-- tim- -layers.--- -The - _r--lmyerHixteti
a di d
_~~5_ Ian- Thj_'_O_thit~~.
1461~ . of ' 6i up,
Asye acid per.~~ 0 att
6 Sp ti
absorption of the molecular oxygen may be- neglected. In this layer the di a on;_
is invariable. In the lower layer the albedo changea with height. Optical '-n-
struments me"ure the spectrun-integral radiation, which may be compared with the
intensity of radiation exprezoed theoretically. The integral radiation may be
compared with the grovtb curve. Special formulas have been developed for computing
the integra2 radiation for Doppler -contours. A-tr&rait from Doppler contours to
Lorentz contours makes it possible to compute changes of intancity vith height,
Ccrd

M
3~33-6
ACCESSION NR# AT5023641 OR/0000/65/000/000/0576/0581
AMOR: Kurt. V. 0.
_77
TITLE: Measurement of scattered L,(-radiation in the nelghborhood of the earth
in interpL-Anetary space
SOURCE: VsesqnZon konferents&a po- fizike koWichaskp anst". Hodeovp f
1965. Issledovar4a kosmichaskogo, prostranstva (Space research); trudy
konforentsii. Moscow,, Izd-vo Nauka, 1965, 576-581
TOPIC TAGS: L radiation, space research, ultraviolet radiationt space-probeg
photon.. ionization chambert phosphorus,, thermoluminescense, corona. hydrogen
ABSTRACT: A device for measuring scattered ultraviolet rad
_jj_Uqh was intstallad
in tho space probe "Zond 1",, consisting of two screened photon counters and reg-
istration circuitry. Both had long wavelength limits at about 1350 1p one being
provided additionally with a calcium fluoride filter cutting off all wavelengths
bolow =5 X. The counters were calibrated to L,,< radiation by using an ioniza-
nko
tion chamber and thermoluminescent phosphorus, as described by 3, L Babiche
1. P. KarpWkiy, at. al. (Kosmicheakiye isoledovanlya, 3. No, 3, 237, 19600
The probe movod in an orbit in a plane approximtell perpendicular to the
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3433-66 -------
ACCESSION NRt AT502)641
earth-sun line of centers., scanning tbo profile of the earth's hydrogen coronas
Data were obtained for distances from the center of the earth to 3"(-47 thousand
kilometers and for greater distances up to 15 million kilometers. By moans of a
formula relating observed luminosity to volume emIssivity, the data were pro-
cessed to give values for the neutral hydrogen number density shown in Table I on
the Enclosure. A comparison with the theoretical model of Donahue reveals a
substantially smaller density gradient than in the theory, The number densities
obtained at 15 million kilometers are also compared with those obtained by other
workers. Orig. art. hast 4 figures, 1 table, and 13 formulas,
ASSOCIATIONi none
SUBMITTEM 028ep65 EXCLIt 01
NO REF SOV-z 001 OTM: 005
Card 2/3
SUB COM AA

L 343-3, T66
ACCESSION NR: AT5023641 ENCLOSMIss (a
Table 1.
ri. ".4
1,25 8,1 6.5-10- 4,30-10-- 2.5, 101
1,50 0,6 3.6 3,62 8,0404
2,00. 12,8 1,0 3. W 2,4--ios
2,50 16,0' 1,2 2,70 0.5-10S
3,00- 19,0 0,84 2.42 4,5-10S
3,50 '22,4 0.65 2.20 2,g,jos
4,00 23,6 0,5t 2,06 t,5463
4,50 28,8 0,42 1,90 9,5-to

5,00
32,0
0.36 t,82
6,0-10
5.50 35, t 0,3t 1,75 4,040
6,00 38,3 0,26 1,69 3,040

so
U,6
0,22 1,63
2 2-10--
Results for the number density of no6Fral hydrogen an function of-radluge
in the first column is distance from the center of the earth In units of
earth radii. N in the integral of n(r) from R to oo. The last column is
the corresponding value of the number density given by the theory of T. H.
Donahue (preprint,, January 16, 1963).
;-Cwd,3/3

_2?_699-66-. MM/FCC GW
_7,CC_N_R_,_-_AP6001141 _~_o_ffCFCODF-- uR70293/T676--0-4-160-fl0l-ff/OIM--'-I
AUTHOR: Kurt, V. 0.
ORG: none
TITLE: The total quantity of neutral hydrogen in the upper terrestrial atmosphere
SOURCE: Kosmicheskiye issledovaniya, v. 4, no. 1, 1966, 111-115
TOPIC TAGS: solar resonance radiation, opticnl depth, dtspersion line, upwelling
radiation, downwelling radiation, theoretical albedo
ABSTRACT: The distribution'of hydrogen In the upper atmosphere of the earthI~an be
studied by observations of scattered solar-resonance LOL radiation. Curves of sur-
face brightness obtained from observations at the zenith have approximately the same
character at any optical depth T. At a height of 140 km the brightness becomes
steady and only some variations depend upon the optical depth, which is difficult to
determine. A method for determining the optical depth is developed on the basis of
an approximate theory of dispersion containing arbitrary assumptions. The'contour
of the dispersion lines L is assumed to be a rectangle the width of which Is 24&A
2 D'
The width of the solar emTssion line is ANS at the intensity of vFS - 3 ergs/cm sec.~
It is assumed that the radiation is scattered only in the direction of the terres-
trial radius, and that the density of hydrogen is proportional to r-3 for direct
radiation (r is the distance from the earth's surface expressed in units of the
cord 1/2 UDC: 551.510.04

L 22699-66
ACC NRj AP60077151
earth's radius). A system of equations was com posed assuming that at a height of
110 km from the earth's surface the upwelling radiation is equal to zero. The
downwelling radiation is denoted by 11 and the upwelling radiation, by 1-1. The
ratio 1 1/1, - A represents the theoretical albedo and is computed for various
values ;f the optical depth T and represented graphically in the original article.
The scattered radiation is isotropic. Orig. art, has: I table, 2 figurtas. and
10 formulas. (EGI
SUB CODE: 04/ SUBH DATE: 30Jan65/ ORIG REF: 003/ OTH REF: 010/ ArD PRESS:

ACC NR, AP7007064 SOURCE CODE: UR/oo3oA6/000/012/0033/0039
AUTHOR: Kurt, V. G. (Candidate of physico-mathematical sciences)
OFG: none
TITLE: Investigations of neutral hydrogen
SOURCE: AN SSSR. Vestnik, no. 12, 1966o 33-39
TOPIC TAGS: upper atmosphere, solar activity
ABSTRACT: The problem of study of neutral hydrogen in the Earth's upper atmosphere
is reviewed. The review centers on three basic problems: study of the law of
distribution of hydrogen as a function of distance from the earth, determination of
the total quantity of atoms of neutral hydrogen in the atmosphere, and study of
variations in the distribution of hydrogen associated with time of day, solar
activity and other factors. Particular attention is ive~ to studies of the HX
line. 1. S. Shklovskiy has shown that the L (A1026 Al e -ssion line in the solar
spectrum should excite a third level of the gydrogen atom1with subsequent re-emission
of either the same L.B line or LcK + 1~(. The number of quanta in the Hoc line should
be related to the numter of L0( quanta as the Einstein coefficients for an optically
thin rwdium. In 1963 and 1964 P- Ve Shcheglov discovered an asymmetry of neutral
hydrogen in the geocorona. Neutral hydrogen forms a disk in the Earth's orbital
plane with a thickness or approximately one Earth radius (5,000 km); the extent of
Card
:540~

I-ACC NRI_ AP7007064
the disk is about 3,000 km on the morning side and about 10,000 IM on the evening
side. Among the work which must still be done the author lists: observations in
the IVC line at heidits up to 10,000 km from an oriented spacecraft; observations
at distances of millions of kilometers from the earth with different known orienta-
tions of the ship for detection of asyr=etry of interplanetary hydrogen; theoretical
studies for obtaining numerical solutions of transfer equations for a three-
dimensional medium with cylindrical symmetry; more rigorous solution of the problem
of the interaction of a corpuscular stream with interstellar cold hydrogen and
with the interstellar magnetio field. Solution of the latter problem will give
an answer to the problem of the origin of hot neutral hydrogen in the.solar system.
Orig. art. has: 2 figures and 1 formula. IJPRS: 3997181
SUB GCDE: 04

MT, V.L.
Jupiter in January-February 1942. Biul.VAGO no.12:15-17 '53.
(MLRA 7:3)
1. Mookovakoye otdeleniye VAGO, otdal planet i Luny.
(Jupiter (Planet))

12 I-DOV/26-59-5-16/47
AUTHOR: Kurt, V.L.
TITLE: An Artificial Sodium Comet
r-ERIODICAL: Priroda, 1959, Nr 5, PP 74 - 76 (USSR)
ABSTRACT: The author refers to the great speed and weak
brightness of the Earth's artificial satellites
(sputniks) whi'~h makes their observation difficult.
The difficul y becomes more complicated in photo-
graphing rockets at a distance of several hundred
thousand kilometers from the Earth. This diffi-
culty has been overcome by a method whereby solar
radiation was reflected from a disseminated gas
thrown out of the rocket. Each atom of this gas
acts as a fluorescent vibrator from an artificial
comet. The author describes this method in detail,
Card 1/2 and also the experiment carried out on 19 September

SOV/26-59-5-16/47
An Artificial Sodium Comet
1958, which enabled Soviet pcientists to ascertain
the density of the Earth's atmosphere at 440 km.
There is 1 set of photographs and 2 graphs.
ASSOCIATION: Gosudarstvennyy astronomicheskiy institut im.
P.K. Shternberga / Moskva (State Astronomical In-
stitute imeni P.K. Shternbe rg/Mo scow.
Card 2/2

KMT, V. L.
Remains of unimown supernovae. Priroda 49 no.8*87-88 Ag 160.
(MIRA 13:8)
1. GosudarstvemW astronomicheskiv inetitut im. P.K.Shternberga,
Moskva.
(Stars, liew)

KURT,-.-Ya. ---
Exhibition of innovations in the printing industry. NTO 2 no~5:
39-40 Yq 160. MM 14:5)
1. Zamestitell predsedatelya Mookovskogo pravloniya nauohno-takhaicho-
skogo obshchestva poligrafii i izdatellstv.
(Moscow-Exhibitiono) (Printing-Technological innovations)

-KURT, Ta.
Following the exmple of Kolomna workers. MW 2 no*7:53
JTl 160. (KIM 13: 7)
1. Zamestitell prednedatelya oblastnogo pravleaira Fauchno-
takhnichaskogo obehchestva poligrafii i izdAtelletv.
(Koooow-Printing-Teohnological innovations)

KURT, Ya 0
Quicker printing of books. NTO 3 noa6t50-51 Je 61. (YiRA 14:6)
1. Chlan prezidiuma Moskovskogo pravleniya nauthno-tekhnicheskogo
obahchestva poligrafii i izdatellst,r.
(Printing)

KAPJTYUSHIN, L.V., kand.taklin.riauk, dotnent; KUPT-MEROV, V.ri.t Inzh.
Principlen of the control of the reliability of the elerAnts of
automatle control systems during their operation. Elektrlchestvo
no,11:8a-84 N 164, (MIRA 18:2)
1. Ukrainskiy zaochnyy politekhnicheskiy institut.

L 21978-66 EWA(h)/EWP(k)/CiT(4)/ZWT(I)/EW(h)/T/EWP(I)/CdP(T) lip(c) to
ACC NR; AP6007870 SOURCE CODE: UR/0103/66/000/002/0142/0146
AUTHOR: Kurt-Umerov, V. 0.(L"VOV)
ORG: none
TITLE: A mathematical model for the prediction of gradual failures In system components
SOURCE: Avtomatika I telemekhanfica, no. 2, 1966, 142-146
TOPIC TAGS: mathematic model, circuit failure, system reliability, reliability engi-t -:-:.j.
neering, reliability theory
ABSTRACT: This article deals with questions on mathematical descriptions of the proces-
sea of gradual change in the parameters which determine the efficiency of components of
complex radloclectrunic devices. These questions are of practical importance In the
prediction of probability of gradual failure in a given Interval of time. Although such pre-
dictions do not consider sudden failure of components, in some cases they are necessary,
as. for example, In the determination of the operational reliability of precision systems.
For ouch systems, operational reliability Is considered approximately as the probability
!Card IL/2 621.,396.6.019.3.001.57

L 21978-66
ACC NR: AP6007870 Ile
of maintaining a prescribed accuracy In an interval of time. In operational conditfon3, it is I
considered expedient to predict functional reliability on the basis of the processing of in-
formation obtained from each individual component. In this case, the problem Is reduced
to the determination of the measure of probability of future states of the controlled
component solely on the basis of the analysis of Its prehistory. Such a prediction makeb
it possible to recommend replacemdnt of components which have lowered their reliability.
Jn order to realize this method of prediction the author constructs a malhematical model
I of the change of future states of a component as a function of its past states. Author expres-
sea his deep gratitude to L. V. Karnyushin under whose supervision this work was per-
formed. Orig. art has: 3 figures.and 13 formulas.
'SUB CODE:. 09, 12 SUBM DATE: Mug65 ORIG REF: 004 OTH REF: 001
:.Automatic control theo
Card 2/2 Ubt

4
A jeja;j
-A -Opi
To who was conferred tho title "FArellent Worker In
Socialist Competition." Manca sindic 7 no.9L18-20 S 163.
1. Presedintele comitetulul sindicatu7iui Intrepe-nderea de
Produse Finite din Lemn "23 August", Tirgu Mures.

KUIRTA, K.Ye._~Kltrta, I.=]
PapIls' understanding of a change In the size of a fraction by a
change in its parts. Nauk. zap. Hauk.-doal. inst. psykhol. 11:130-
134 '59. (MIRA 13:11)
1. Pedagogicheekly institut, 7,iporozh'ye,,.
(Arithmetic-Study and teaching (Primary))

SAMOYLOVA, T.S.; MICHURT1.1, 1~.V.; KURTACH, B.L. (Ieningmid)
Matastntic adenoma of the thyroid gland. Probl.endok.i. gorm.
no.D106-110 162. (MMI 15:8)
1. 1z kafedry obshchey khirurgil (zav. - prof. V.I. Korkhov)
Leningradskogo pediatrichnskogo meditsinskogo instituta (dir. -
Ye.P. Semenova).
(THYROID GLAPD-TUMORS)

Soffs-11 a-, zi-co-ris.-CC-0 -a if~-' -,lid iat -a ii'iRaT41i if i~it M-a'p-
Of th" experimental gaulovoc plantation. hichn Kuriqj4
(lust. Agro-tcol,, Zagreb, Vuco-kivia), Zemijifte i ));Ijka
1, 201-All(1952)(finglisb summary).-The -,per deals-
with the suiubilitics a! the SOW for growing oF fruit trees,
.%it thev.41s, urc dcvcl(Vcd from a marl, wittL'-'O 30% CaCO,
iq)ics are preuuted with clata of the PH in KCI and 11~0;
KA P~O,. AW.. and Fz*Gj sat. in 26% UCl- ~ humv.-s-
cl, N; also lot the gratudomettic c(unpn. Frs~n Ztc~c Q
Ilie tolKilogicat map it Is colKluded that ail %[,)PCs of Intfre
than fA*, crop gro;ying stwutd Ix discoutinutil aud fnift arld
whic should be rij iced.
and N ferfilizcts. P and K are to lv given in it 2nd application,
uf fertilizer. Such fertilizatiun Program must go hand in
tumd with a fight against crosion. Wvfflct I'vol II

KURTPGIC, mf-~110
Poljoprivredna tla i krs sjeveme Dalmacije. The agricultur,?l goils, and the Karst
of north Dalmstia (by Meho Kurtqgjc and Dorivoj Pusic) Peograd, 19%. 130 P.
0
Jugoslotrensko drustvo za proucavanje zemljista, Belgr,7,de. (Izdanje) no- 5)
English summary. illus., map)
~
CLU No t in DIX
SO: Monthly List of East European Accessions (EEAL) LC, Vol. 6, no. 7, Jttly 1957, Uncl,

KURTALJ, I.
l1th Annual Assembly of the Union of Textile Engineers and Technicians
of Yugoslavia in Zadare p*423
TEKSTIL. (Drustvo inzenjera i telmicara teksti-laca Hrvatske) Zagreb, Yugoslavia
Vol, S. no,6, June 1959,
Monthly list of East European Accessions (ERAT) LC, V01.8., no.9, Sept. 1959
Uncl,

KURTANIDZE, T. S.: Master Agric Sci (diss) -- "Ilaterial for explaining the
differentiated agrotechnology in the fruit orchards of Ne-;kheti Isouthwest
Georgi~7". Tbilisi, 1959. 20 pp (Min Agric USSR, Geor-gian Ordar of Labor
Red Banner Agric Inst), 150 copies (Kl-., No 11, 1959, 121)

i -7
SAFARIYAN,A.M., inzhener; KURTANINE,V.M.,
Protecting roade from gully detritus.
N-D'54.
(Georgia--Road drainage)
inzhener
Avt.dor.17 no.3:10-11
(MLRA 8:10)
4i

11-3
jUG(r.LpVTA/Di8eases of Far" Animls Laused by
viruses arul Rieltettsiae,
A,bs Tour Ref Zhur - Bioli) VO 14) 19581 64669
Author ForseXi ZO) Zeljkoy M., by
nt, j%gainst the Ilewcastle Disease
Inst ion of Chickc castle Disca-
Irmmnizat S of the New
Title e AdditiOn Of the V'ru izer.
means or th _tabil
se to Drinking Water with a v
orig pub veteriliaria (JUg0514)? 1957P 6, No 1) 4-129
The best vaccine for the immunization of chickens accor-
Abstract this rjethod was round to be the (4yeerinItcd Virus
dinG to be,t tabilizer,, powdered
,ill and thc-' ization was
of the Muktesvar stra essary for in=
milk. The amount Of virus Ilec The titer Of the
tbous. units DL 0 per 6ted chickens
about 15 lizion in the vaccinc
retardation Of agglutina nmber of chickens that had
averaged about 1.250 and the eed 4. Bacterial
not acquired im=it)r did not exc
Card 1/2
YUGOSIAVIA/Di3eases of Farm Anim,11a - Diseases Caused by Virmes R-3
and Rickettsiae.
Abs Jour Ref Zhur - Biols, Ila 14, 1958, 64669
contamination of the drinking water reduces the preserva-
bility of the virus, and it is therefore nece3cary to use
a sterile stabilizer and purer water if possible.
Card 2/2
- 23 -

GOLUBCHINA, M.N.; KURTAZINA, T.M.; GUSAKOVA, A.N.
Isolation of small quantities of lead from rocks and minerals for
the determination of isotope compotition. Inform.sbor..VSEGEI
no.16:113-119 '59. (MIRA 15:3)
(Lead--Isotopes)

KURTEKV-P-1
"School fteursions through Yugoslavia" by V, Corofejev. Ravieved
by P.Kurtek. neogr hor 4 no-4:41-42 159.
1. Clam TJzeg redakcionog odbora, "GeoqTafski Horizontt

KURTEK, Pavao
Milan Jokanovioto Lik nastavnika geograf1je u reformioanoj skoli (The
Image of the Teacher of Geography in Reformed Schoolsh a book review.
Geogr hor 6 no.3:64-65 160.

XURTEK, Pq
Developwit of big cities in the UAA-from 1950 to 1960. Geogr hor 7
no.1/2:41-42 161.
1. Clan Uzeg redakoianog odbora, odgovomi urednik, "Geografaki
horizont".

KURTEK, Favao
Radio broadcasting in teaching geograpby. Goopr hor 7 no.3142-43 161.
1. Clan Uzeg reakcionog odbors. I odgovorni urednik, "Geografski
horizont".

'I(iJRTEK-#-- P-.
IThe application of graphic methed in teaching geography" by Radova"
Pavic. Reviewed by P.Kurtek. Geogr hor 7 no-4:37 161.
1. Clan Uzeg redakcionog odbora, "Geografski horizont!

KURTEK, Pavao,
Some geographical characteristics of Sudan. Geogr hor 8
no.1/2:16-29 162.
1. Clan Useg redakcionog odbora i odgovorni urednik, "Geografs)d
horizont."

I KURTE&,~?.---------
Teaohing geography in Sudan, and what the students there learn
and know about Yugoslavia. Geogr hor 8 no.1/9355-56 162.
1. Clan Uzeg redakcionog odbora i Odgovorni urednik, "GeografBU
horizont." I

KURTEKP Pavao
"'On the shore of the Levant and Red Sea" by Milorad Vasovic.
Reviewed by P. Kurtek. Geogr hor 8 no.3:50-51 162.

KURTEK, Pavao
Importance of outside literature in teaching geography. Googr
hor 8 no.3:45-46 162.
Is Odgavoxmi urodni I. clan UZeg redakcionog odborat
"GeografAl horizontil,

KURTEK, Favao
"CoUected tranactions of the 6th Congress of Geographers of
Yugoslavia." Reviewad by P. Kurtak. Geogr hor 9 no6l/g.-71-
72- 63. .
1. Clan Uzag i-edakcionog odbora i odgovorni urednik,, "Geografski
horizont."

KURTFK, Pavao
Soem geographical characteristics of Budapest. Geogr hor 9
no.3:1-14 163.
1. Odgovorni, urednik, clan Uzeg redak-cionog odbora, "Geografski,
horizont".

KURTEK, Tadeusz, mgr inz.; WIECKOWSKI, Jan. mgr inz.
Coke breeze briquetting for blast furnaces and heating. Gosp paliw
11 Special issue ro.(95)t23-24 Ja 163.
1, Zaklady Przemyslu Wapienniezego Sitkowka k. Kielc.

KU'RUH, Tadounz, mgr inz.; tMCRUISKI, Jan, rgr inz.
Coko breeze briquetting ror blast furnaces and heating.
Gosp paliw 11 Special issue no.(0,5):23-24 Ja 163.
1. Zaklady przemyolu-Wepiennicmego SitkowVka-K. Kielc.

KUfrrENLR,.
Temverature of a gas flow In a thin-walled perforated tube of
constant crois section. Inzh.-fiz. zhur. 7 no. 3-54-56
mr 64. (MTRA 17:5)
1. Agrofizicheskiy nauchno-issledovatnIlskiy institut, 'Leningrad.

y N . 11,; . , 1) . 4 .
lienti-ra, ayntem for spring and summer gr~-~nhotiaos. Blul .
ti-kh,ekon. Info:--. 'no. nauch.-igsl. inst. natich. i tekh.
inform. 17 no.1.64-65 16~,. (MIRA 17:9)

T_
ACC NRt AP60 li-si-9-- SOURCE; CODE: UR/0193/66/000/001/0039/0040
AUTHOR: Kagaiov, M. A.; Kurtener, D. A.
ORG: none
TITLE: Experience with a multipoint instrument for remote measuring and automatic
recording temperatures. by semiconductor sensors
SOURCE: Byulleten' tekhrPko-ekonomicheskoy informatoit, no. 1, 1966, 39-40
TOPIC TAGS: temperature measurement, temperature instrument
ABSTRACT: A 12/24-point temperature measuring -and-re cording instrument was
developed in the Agrophysical Scientific Research Institute. Thanks to the use of an
unbalanced bridge circuit with an output electronic potentiometer, the resistance of
connecting wires can be neglected. Semiconductor thcrmistors (over 1 kohm, 3-5'A
,per IC) are employed as sensors. Only three wires are needed for connecting the
instrument to the sensors, the latter being switched in succession by a step-type
~switch. These characteristics are claimed: scale span, -54 45M error, 0. 2510;
distance, Z-3 km. Orig. art. has: I figure.
UB CODE:13, 09 / SUBM DATE: none
Card I / I

Z"HAROVI
;-, ri" ;. , - ;,!. , ~- 1.
I , " . - i, ~~, !, ~ '. ~ . - .. , " . . - Z i- ...
llollkhoz~ 0-., --", " I ~, -,2.
, . vc.. ~~ . ) 1~, :,
1. Agrof 1, -, I Vric. "', - -:,,-I ~ , '. . . m ,~- '., ~ ~- !, .
i' i.--

AUTHOR Kurtenkov, L.A. 56-2-46/47
TITLE On the Statistical Treatment of the Structure of
Elementary Particles.
(0 statisticheskoy traktovke struktury elementarnykh
ohastit8.)
PERIODICAL Zhurnal Eksperim. i Teoret. Fiziki, 1957, Vol. 33,
Hr 20), PP. 554-555 (USSR)
ABSTRACT The following problem arises; Have the fields, rhich
surround the elementary particles, any properties of the
usual particles, in particular statistical properties?
The author here studies the elementary particle as a
oloud of virtual particles which satiqfy canonical
statistics. Thus, it applies for the distribution of
pseudophotons that
u(Q) dW- (tC03(2 n203) Cexp(tW) ~ + a) - 1j -' dQ),
where a t6) holds, In the case of black radiation
a - 0, but in the general oaso a j 0. With the aid of
the uncertainty relation it is possible to bring the
energy of the virtual particles into connection with the
length of existence of the virtual particle % and with
CARD 113 its distanoe R from the center:

56-2-46/47
On the Statistical Treatment of the Structure of Elementary Particles.
6t t; R,.rot; F, 3 no/pR.
Here a denotes the velocity of light and p - a factor
of the order of on-@. Thus, the uncertainty relation
causes no contradiction to the law of conservation of
energy if t? following is assumed: The particle with the
energy 6 - h G) , which moves with the velocity of -j a
can be observed at a distance of from 0 to R,-Ao/r. It is
therefore possible that, at the point with the distance
r, there are particles with energies of from
0 to to/r. We therefore find for the energy density at
the point with the distance r (if the inteeration
variable&)is replaced by c/R) the expression
u((0 ) d 6) -- te to + a) CIR
W(r)- r~o '60
2 p 4n2 lexp( p QR -55
The total energy E of the virtual field is determined
by the inteEration of W(r) with respect to the entire space.
This energy is also to be considered as the rest energy
CARD 2/3 Me 02 of the particle (if the other possible virtual
fields, as. e.g. the field of gravitation, are neglected).

56-2-46/4T
On the Statistical Treatment of the Structure of Elementarjy Particles.
The density W(r) can, however, be identified with the
energy density of the Coulomb field. The integrals of W
and E converge everywhere. Essential deviations from
Coulomb's theory begin only at
to/p alto owl, R0"'10/6 V 10-' 3 0m.
In conoldsion the results obtained here are specialized
for the case of the nucleon.
There are no figures.
ASSOCIA.TION: None given.
SUBMITTED: September 6o 1956.
AVAILABLE., Library of Oongreae.
-CARD 3/3

L.1:_28 29.9-.6.6EwT(m)/EWA(d)/aJPW/ETI TJP(c) JDAUMAID
ACC NR, AT013792 SOURCE CODE: UR/0000/65/000/000/0123
AUTHOR: Mirolz2bov Ye. N.(Caadidate of Aemicdl scienceb); 'Kazakovi, AF
Aurte I '. 1.1
M a= i_. P--r -I-
ORM.'- none
del
TITLE: Effect of chlorides on the corro&ion resistance of stainless steels in nitric
acid solutions /I
SOURCE! Kor-roziya metallov I splavov (Corrosion of metals and aLloy9), no. 2#
Moscow, Izd-vo Metallurgiya, 1965, 123-135
TOPIC TAGS: chromium steel. nickel steel, stainless steel, corrosion resistance,
nitric acid, test method/lKhl8N9T stainless Cr-Ni steel
ABSTRACT: Various corrosion tests were performed, each suited to the test objective:
measurement of corrosion potentials as a function of time, and of corrosion a a
function of the potential of the steel, with the aid of a hydrogen reference :Iec-
trode. The potential measurements were based on the scheme: x mOl HN03/KKO3 Oat-)/
/01(sat), %2CI2/Hg, with'the chlorine tons being added to the solution In the form
of NaCl. Findings: the addition of Cl- ions to RN03 solutions causes the potential
of stainless steels to shift from a passi4ve state, characteriz2d by a high corrosion
resistance, to an active state at which their corrosion rate increases by several
orders of magnitude. After dome timo# however, the corrosion process ceases and tba
steel returns to passive state. In this connection, the corrosion rate of stainless

L 28399-66
ACC NR3
stools is greatly affected by the test method. For example, it was established thato
all other conditions remaining equal, the currosion rate of lKhl8N9T steel at C
increases with increasing ratio of the volume V of 3M H2SO4 solution (cont41ning.
10 g/liter NaCl) to the surface S of the spicimens of this steel (length of*experL-
rments 202hr); thus, for a V/S.ratto (cm3/cm ) of 3.7 the corroaLen rate K is
3.8 g/(m hr), whereas for VH'- 70, Y, - 24 "4 g/(m2_hr)4, Corrosion rate also varies
with time; thus, for IKhl8N9T steel'in-3H HN03 with 10 g/liter Nail at 201C and V/S
,7.5, K - 12.3 g/jm -hr) when-test time T - 1 hr, but K = 24.2 g/(m -hr) when T - 4 hr
and K - 2.9 g/(m4-hr) when t - 46 hr, and for T>%4- 46 hr the steel-ultimately returns
to passive state.. Corrosion rate tends to increase with increasing V/S ratio as well
as with 4creasing-distance from surface of specimento~surface of.solution. Thus,.
when''evaluating'the effect of various factors on the corrosion rate of stainless
steels in HN03 solutions with Cl- ions, allowance must be made for the features of thd-""~
test,method,selected, preferably selecting a test method that simulates best the pro-
sumed operating conditions. Generallyt for stainless steels in HK03 solutions with
chlorides in'active state, the corrosion rate increases with increasing temperature
ng rate,of. inst Ni tgntent of the steel, and passel,
and mixi the;solution and decreas
through a maximum when the,concentrations of the acid and chloride and the Cr content
of the steel'ware.iincreased., Orig. art. has: 9 figures and 4 tables..
SUB CODE. 165/ ~ORIG REF: 012/ OM RKFt 003.
SUM DATE 19JU
Card 2/2

Jun 49
Zlectrical Properties
Polarization
*Caihode Polarization of Magnesium wA Its Alloys
Vith Lead," M. M. Kurtenor, Ivanovo Chemicotach
T31st. 4 py
"Zhur Piz xhim" Vol XXTT . No 6
Zvaluates magnesium alloys vith lead, wtallic
lead, and magmesium as cathode materials, and
Smphs cathode polarization current dwwity for
seven magmealux-lead alloys. Also givee data on
hydrogen overvoltage for varioua current densities,
4w 52/49T83
MSR/ketals (C=t&) JCM 49
shaving that It can be ro&=*& by une or lead In
magaeolum alloys. Svbmitte& 18 Aug 48.
52A9T83

Irroversible el*ctTW* poolvatials In by4tafluaric 4cIJ
solutions. lit. % Kuttcl.-v *fill A. .14, Fed-vi-i Milli
I'll Irs, -Clscm.. A,-4-1, Xtow,vi%P
1.1k..J. Xwsslf 7%. I'AU 4jIVISO).
25 lart.oll 'Actor I'lelislitord lot 0.111, to 1, *%ill I AM III
pvrr :11 hF$, Thl- i0itiA h -4 1111PIA1111 Ol Illf- Ill, tills, 411-1 Ndl
i
gioupos Woo Ag Ali Cv. * &W. rr W I r, St. INI. Pi
wrf N W, 14 1 ke is( tw, if for t A 14 t !i I I l' I I I .. I , A 1, 1 .
In"'Gi: 14). Ml, 'Of. Ill. 1111111111t-ft IICS- frl,111%ir If
clectormle. The milLd uIld MIAIA' of Ali, (-;I, Its, s-A VA.
were nrit., anti P' of Ms, A], !4, Cr, Mn, Fe, &fill S t, ,, i ~
pot. relative to the regicm of reveirsible potmijaIj. I w 1)),
h. c1- ill dir t'jull. joi,t, "I"'1 Nt.,Ald
11111'. .,-r, w-1-1 ,.it% Ali, Mit,
ALL NIll. I -. I'll. 1-1. ~#ml sh, is., 1.0-1 Ill, filh
X. Hillis

i,.*,-),xrtA.cs of ili--ncriun-Lcaci A110Y systens.
o ~o,,,r)sii Xetallov,
"Rer,,;arch in Corrosion of lllat%js (jrqjcLj:)v :niya . , I
y Ak-acicrV ot -icnecs,
d by-inst. of PhysicIll Clicillistr Sk I
Translation-ATic-'I )u62-D

EURT&POV, M.M,
Xlectrods potentials of alloys in the nagnesium-lead syetem. Trud.T
Inst. Fis. Khiln., Akad. Hauk S.S.S.R. 2, Iseledoyaniya po Kormii
Ketal. No.l. 237-40 151. (miaL 4:10)
(CA 47 no.13:6279 '33)

XU = POV, N.M.; XCLITSOVA, A.S.
Device for measuring electrode potentials. Trudy Inst. Fiz.KhIm.,
Akad. Nauk S.S.S.R. 3. Iseledovaniya Korroxii Metal. Ho.2, 83-5 151,
(CA 47 no.16:7831 153) (MLRA 4:10)
1. Gorki Pat Combine.

KURT,~;FUV, 1%. E.; KOLIT-'tliA, .. 0.
LLE~TRIC
Devicc; for measuring cloctrod.~ j-,otentials. Trarly 'knot. Fiz. Ehim. AN Si6R, No. 3, 1951
Monthly List of Russian Accessions, Library of Congress, Lay V)52, UNCLASS.

is$ Olawng
W=utionj.~--nemwponoolpscerll ill"aluolumm"O, ~Chromlo Acid.
V, akigigv, and N. N, Ddrdigh . (DA14d
The infittence, of chroinic ovid an the corrosion of w)mo #tain.
ts&& stools (Cr strols ; 18/8 stools with Ti. Mo. and Mo + Nb-,
and Cr-W-Ni stool) were investigated. Tho influence of
acid concentration and temperature on the qmd of corrosion
were also test6d, IU reetilts are assembled in tablet.-v. o.

I I-%-'-pu 7 11
13 . - . -
Q
f
-7MMNlr
1%61cill:?~,ol.pol u",dlo4-mM*&tlOO'C. The
of 'I, id~V incressom with the rowtion I=
00fro bly t
The results of experirmats am tthulatod.-Y. o.

USM/Motallurgy - Steel Dee 52
Corrosion
"Corrosion Properties of Stainless Steels in Oxidizing
Solutions: Effect of Oxidizers on the Electrode Poten-
tials and Kinetics of Electrode Processes on Stain-
less Steels," M. M. Kurtepoy and G. V. Akimov, Corr
Mem Acad Sci USSR, Inst of Phys Chem, Acad Sci USSR
"DAN SSSR" Vol 67, No 6, Pp 1005-1007
Continues investigation (DAN, 87, 4, 1952) of ef-
fect of oxidizers added to M103 on corrosion of
18-8-type steels, presenting sow results from in-
vestigation of the effect of K~Cr207, NH4VOq and
KI03 additions on 18-8-type steel with 'Mo an-11 Cb.
24oT78

BATR&OV. V.P.; KURTEPOV, H.M.; T(MASHOV, N.D.
Georgii Vladimirovich Akimov. Zhur. Fiz. Khim. 27, 313-16 '53-(HLRA 6:5)
(CA 47 no.18:9071 153)

Authors I Kurtepov, M. M.
Title i Corrosion of rustproof steel in acid oxidizing solutions
Periodical I Dok. AN SSSR 99/2, 305-306, Nov. 11, 1954
Abstraot I A new~type of corrosion destruction of welded joints of rustproof and acid-
resistant steel is discussed. Such types of corrosion destructioxs were ob-
served in more diluted (