# SCIENTIFIC ABSTRACT KRAVTSOV, V.I. - KRAVTSOV, YE.P.

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CIA-RDP86-00513R000826310015-5

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S

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100

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Publication Date:

December 31, 1967

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SCIENTIFIC ABSTRACT

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KiIAIT30V V. 1.
-2-
Tbe Co-nmittee an St-ftlin PrIzets (ctt the Cowicil rif Kinjutere LJV3,SFI In the rieldu of
acitace and inventloas anmuncea that the fallovinp rnentiffe vorks, popular Ocien-
-t-IfIc bcx-,kii, r-,LrA terthooks have been subaltted fQr ;~:u=petition for Stalin Prizea for
the yeara 1952 and 1953. (GovetakayA KultHES, Yoacuv, W. 22-40, 20 Feb - 3 Apr 1954)
Title of Work
Averkiyev, A. G.
Kravtsov. V. I.
Voynovicil P A.
shin, "I
L
ap
"A New Method of Hydraulic
Study 'by Means of Models
Under Air Pressure"
RinLstry of Electric Power
Stati,ns and Llectrical
Indtistry
so: w-3o6o4, 7 July 1954
11Z-57-8-16332
Translation from: Referativnyy zhurnal, Elektrotekhnika., 1957, Nr 8, p 42 (USSR)
AUTHOR; Kravtoov, V. I.
TITLE: Princi~al Problems and Trends in Research and Designing of Large
Hydroelectric Statiops (Osnovnyye zadachi i napravleniye issledovaniy i
proyektirovaniya krupnykh GES)
PERIODICAL: Tr. 2-go nauch. -tekhnich. soveshchaniya po proyektir. i str-yu
gidroelektroetantsiy (Transactions of the Second Scientific and Engineering
Conference on Designing and Building of Hydroelectric Stations), Moscow-
Leningrad, 1956, pp Z27-253
ABSTRACT: Principal scientific and engineering activities of VNIIG imeni B. Ye.
Vedeneyev have developed along the following lines: (1) substantiation of the
minimum permissible size of hydro engineering installations and their layout;
(2) development of the most pejrfect design methods for hydroengineering in-
stallations; (3) improving the construction of hydroengineering installations;
(4) improving quality, cutting down costs, and creating new building materials;
(5) improving labor methods and cutting down labor costs; (6) improving
operating methods of hydroelectric stations; (7) generalization of designing and
Card 1/3
112 -57 -8 -16 332
Principal Problems and Trends in Research and Designing of Large Hydro- . - - -
building experience, and development of various GOST standards, specifica-
tions, and norms. The work of VNIIG consists of two parts: contractual jobs
(6011/4) financed by interested organizations; and general-problem jobs (4019)
financed by the Ministry. The contractual work deals with the solution of spe-
cific problems for individual hydroelectric stations, such as those for the
Kakhovka hydroelectric station set forth in the article. The problem work deals
with the solution of general prospective problems. The most interesting of them
fire described in the article; for example, Professor Baurngart's work on the
. ght constructions of overflow dams. The results of practical applications of
such solutions are presented. However, the experimental basis of the Institute
allows solution of only 25-30% of the planned scientific and engineering projects;
this fact served as a basis for the governmental decision on a considerable ex-
pansion and reconstruction of the Institute. This article presents the basic lines
of further scientific and engineering work in these fields: (1) water streams;
(2) filtration through soil strata; (3) soils and foundations of hydroengineering
installations; (4) construction of hydro installations; (5) concrete and building
Card 2/3
112-57-8-16332
Principal Problems and Trends in Research and Designing of Large Hydro . ....
materials; (6) fulfilling and organization of construction work; (7) operation of
hydroelectric stations and other hydro installations; (8) water culture and
utilities; (9) laboratory and experimental work; (10) direct servicing of con-
struction work.
T. A. F.
Card 3/3
LOGINM, 7.G.; BASWICH. A.Z.; MU", A.V.: VCCMENSKIT, A.N.; GIRMN, P.D.;
KACHANOVSKIY, B.D.; wnppv,,T,,r.; LLFYI, I.I.; MOROZCff, A.A.; NOSOV,
R.P.; OKCROKOV. S.D., PROSEMYAKM, B.V.; STAROSTIN, S.K.: URAZOV, A.A.;
CHMTOUSOV, M.D.; CHUGAYN, R.R.; SHCHAVRM, D.S.; YAGN, Tu.I.
V.S.Baumgart.; obituary. Gidr.stroi. 25 no-5:58 Js '56. (KwA 9:9)
(Bw1mgart, Vladimir Sergesvich, d.-1956)
SO"/] '4 ;8 10 11591
T- r:n from- Rererit; -yy zhi. r-a-1, M__J _.j-*Pl 1(4~.s N, I' In, I", 'UTSSR)
,% I -rTJORS- Kr,., tso . V, Ye ~ cick.'mc. P~ D,
T'T LE Or-, Normal S041 Stcif- Di~,tr~hut~cn Urderne-cii R'-g'fl Fou-ddtioni
~K oprci-4,-i o ra.,Prede.ler.:~ nc-rmal'-vkh !,.apry,,zne,`,, g-i;,itc -
FctiosE, akh zliest~ikh iur,utm,,vt(
PER'OD'CAL- z Vses. ;n ta g.urote~~-, - 057. Vv~ i7 pr 71 76
ABSTRACT: A mcllicd :~ propcsed for cont:-olling co-A-tct ~11.eise~l llef.weer,
a r*gid iouncaflor zind the und.-,,,:ng sc~l b,, mcall~ (1: ~r,. !.c.-t
reated hydrc,,,t.cit'c p!e~s,."e cd ~~ es 0l !flt: cclitacy.
,,;;riace. This method cay,.rtot. it-ac to tFe desired reqWts ewing to
t!ie lact that an increase it, , pre5swe a,t c th-~ exist':-g
cc,)t,Act pre.i ure will rest:_,t ! t !C_5 ~ C' LC,!It.Ct ""C 0i th~_
p, eSSLit lzed 1:qu.~d.
A S SfrcRunc,.
C, If (I I /I
8(6), 14(6, 10) SOV/112-59-4-6666
Translati,-n from: Referativnyy zhurnal. Elektrotekhnika, 1959, Nr 4, p 40 (USSR)
AUTHOR: Kravtsov, V. I., and Pichuzhkin, A. A.
TITLE: All-Union Scientific -Research Hydro -Engineering Institute (VNIIG) imeni
B. Ye. Vedeneyev
PERIODICAL: V sb.: Energ. str-vo SSSR za 40 let. M.-L. , Gosenergoizdat,
1958, pp 272-287
ABSTRACT: Organization and development of the Institute, its activities and the
hydrzulic projects on which the Institute has worked are described. Principal
researCh projects conducted by the Institute since 1931 are listed, and the
.esults of their realization are shown. Institute activities in developing
standards, organizing scientific and engineering information, etc. , are
described.
Card 1/1
VOYNOVICH, P.A., starshiy naucbnyy sotrudnik, kand.tokhn.nauk;
starshiy nauchnyy sotrudnlk, kard,t3khn.
nauk; PREOBRAZHXNSKIT, N.A., starshiy aauchnyy sotrudnik,
kand.t,gkhn.nauk; SMARTS, A.I., prof., doktor tekhnichookikb
nauk (deceased]
Head stracturee of the Upper Kharluzovskaya Hydroelectric
'?ower Station on the Gromotukba River. Izv.YMIG 61:31-42
158. (MM 13:6)
(East Kazakhstan Province-J%rdraulic power stations)
KRAVTSOV, V.I., etarshiy. nauchnyy sotrudnik, kand.tekhn.nauk; SAHOSTRELOV,
'-,- ..Pl.I., starshly nauchnyy sotrudnik, kand.tekhn.nauk
Experimental Institute of Models and Structures in the city of
Bergamo, Italy. Izv.VNIIG 62:19-39 '59. (MIRA 13:6)
(Bergamo--Hydrauli6 engineering--Research)
I V 0 A .
KRAVTSOV, V. 1. --"The Use of Oscillographic and Ordinary Methods to Investigate
the Kinetics of Electrode Processes Occurring on Iron and a Cadmium Amalgam
in Solutions of Sulfuric Acid." Leningrad, 1955. (Dissertation for the
Degree of Candidate in Chemical Sciences).
4
Sot Knizhnaya letopis 1, No 8, 1956p pp W-103
KRAVTSOV, V. 1.
- ~ - .1 1 ~ - I
Polarization of metals soluble in acids. Yest.1-anun. 10 no.11:
149-152 N 155. (HIM 9:3)
(Electrolytic corrosion)
DURDIN, Ta.V.; KUVTSOV. V.I.
Oacillographit mothod for studying the kinetics of solution of iron in
sulfuric acid. Vest.1jen.un.11 no.4:127-131 F 156. (MLRA 9:7)
(Solution (Chomistr3r)) (Oacillograph)
OBBLEDCHIK, B.M.-, KRAYTSOV.-Y.I.. red.; GHOTIYEV. S.. teLhn.red.
[Modernization of lathes: generalizations from the accumulated
experiences of machinery manufacturing plants] Modernizataiia
tokarnykh stankov; obobshchente nakoplennogo ogyta na mashino-
atrottellaykh zavodakh. Frunze, Kirgizskoe goe.izd-vo, 1957.
141 P. (MIRA 11:6)
(Iathes)
DURDIM. Yq.r.; KRAVTSOV, V. I.
Investigating the kinetics of electrode processes taking place on
tho surface of metals soluble in acids. Part'l: Iron [with sumary
in ftliahl. Test. IDU 12 no.22:131-147 157. (MIRA 11:2)
(Iron) (Polarization (Blectricity))
AUNCRS'. Durdin, !a. V., and Kravt30V, V. I. 54-L-16/2o
TITLE: The investigation of the Kinttics of Lluctrode-ProceSses Taking place
on the Surface of Eetals Solul;le in ,acids. i. Iron (Isoledovaniye
kirietiki ulektrodnykh protsuFsov, protekayushchi~Y. I-,a me-tallakh,
rastvoryayushchikh,,~ya v kislotaVh. I. Zhulezo).
P-'-RIODICAL: Vestnik LeninLradsko6o Universiteta SeriyaFitikj i HMmiij
1957, Vol. 22, Nr 14, pp. 131-147 (USSq).
aLISTRACT: The. oxperiments were carried out with an Armco iron (0.017 0/0 C,
0.02 O/o Si ani 0.006 O/o ,.,n) in a glass apparatus, in hydrot;en at-
mospheric pressure, at 25't 0.10C. i~y cuttine. .,n and :-Ut a dixectly
polarized current the ckirves of the cathnde-polarizat ion and the
osc~illogranz of tl,F,- Vmco iron contair.&d Ln 21TH 2SO4 have obtai-
ned and st;rllerl. Th~,- tah,il-ated shovi, that the solut on-velo=
cLti.~~o of Iron cal,-ulatpd )n I rn 2 Of V-1:1LIAP 3'U'FACO I'B'C after some
tily!f" 'Shere'la thf- gAlit-Iorl velori-fA.,"; calcillat"A orl rcal 711rfacf..
Go down. Latterl apparently, rar, b,~ te) t,he lncrea3e of the
voLl,a-e of tl.,(-. hydr-j6un -).ri U.e, irori, j0pendI.n. on the accum
mulati-on ~f thoi Cree, carbon on the slulace of' the ircli. Yrom the -o.
Card 112 cilloerarro birise quariLiLLus cf the were Obtaine-1-1
The Investi:,ation of the Kinetics of 'Electrode-Itocesoes Ta~.ini~ 51;-4-16/2o
Place on the Surface of Iletals Solnhle in kcids.
and thus the changes of the real s!lrface were determined. The de-,ria-
tions of the, cut-o~it-oscillogran at saaU. polarization from the theon
retLcal quantities can also be explained by the fact, that on the
iron 3urface there 19 a hydroGen excessive voltage whLch is influt-n-
ced by the slow dischargo an,.1 the. s1-1w dlsappearanci~ or the hydrogen
from the Iron surface. J'~)r the strong
b - Ion mV was obtained, for ccmputatioa-i, hoiv~-ver, the value b - 6o
mll has to be used. Thl.,i levIation can be explained by the influence
of tYe dLrfa~ion of' the atomic hydrojen i.ito the solution upr)n the
velocity of the total process of the hyflro~;en separation.
There are 8 figures, 3 tables, and 3~ references, 22 of Y-~Jch are
Slavic.
SUBMITTED: January 7, 1957.
AVAILABLE: Library of Con6resa.
1>
Card 2/.
2
AUTHOR: Kravtsov, V.I., Loginova, I.S. 76-11-9/35
TITLEi On the Mechanism of the Dissolution of Cadmium and Cadmium Amalgam
in Solutions of Acids (0 mekhanizme rastvoreniya kadmiya i anal' -
gamy kadmiya v rastvore kislot)
PERIODICAL: Zhurnal Fizicheskoy Xhimii, 1957, Vol- 31, Nr 11, pp. 2438-2444
(USSR)
ABSTRACT: The most important criterion in the evaluation of the degree of
equilibrium of electrode potentials in the dependence of the
latter on the activity (concentration) of the ions determining
the potential in the solution. Here the investigation of the de-
pendence of potentials of the electrodes of cadmium ana cadmium
amalgam on the cadmium sulphate concentration in sulphurio acid
is carried out. It is shown that the self-diasolution and the anode
dissolution of cadmium amd the amalgamated cadmium in sulphurio
acid solutions develops with practically equilibrated potentials
of the corresponding electrodes. The possibility is shown to de-
termine the cadmium-sulphate concentration on the surface of the
cadmium (amalgamated cadmium) dissolving in sulphuric acid from
Card 1/2 the T-Ig cCdS04 -curves. It is stated that the modification of
76-11-9/35
On the Mechanism of the Dissolution of Cadmium and Oadmium Amalgam in
Solutions of Acids
the aotivity 00efficient of cadmium ions In solutions with an
excess of sulphurio acid takes place "simbatically" with the modi-
fication of the average activity coefficient of the sulphurio
acid. There are 5 figures, I table, and 12 references, 8 of which
are Slavic.
ASSOCIATION: Leningrad State University imeni A.A.Zhdanov (Leningradskiy
gosudarstvennyy universitet " A.A.Zhdanova)
SUBMITTED. June 16, 1956
AVAILABLE: Library of Congress
Card 2/2
AUTHOR: Kravtaov, V.I. 76-12-4/27
TITLE: Oscillographio Investigation of the Kinetics of Electrode Processes
Taking Place on Metals Dissolving in Acids (Ostsillog--aficheskoye
issladovwiiye kinetiki alaktmdnykh prctsessov, protakayushchikh na
metallakh, rastvoryayuBhohikhaya v kislotakh)
PERIODICAL: Zhuir-al Fizicheskoy Khimii, 1957, Vol. 31, Nr 12, pp. 2627-2634 (USSR)
ABSTRACT: The xules goveraing the charaot-e.- of the metal potential change after
the time after switciiing on (switching off) of the polarizing continu-
ous aur:,-ant are investigated here and the corresponding equations are
derived for -~he cases of small and large polarizations. The galvanoata-
tic variant of the oscillographic method investigated here is simply
designed here as oscillographlo method. It results from the obtained
equations (10) and (13) that the oapacity cC the double layer on the
dissolving electrode car- be determined both from the initial angle of
inclination of the switch-on osoillogxnm, and from the switob--off oscil-
logram of the continuous --urrent. With the investigation of the swit-
ching in of small polarizations the equation (17) is obtained. This
equation expresses the ahange of the potential of a previously self-dis-
Card 1/4 solving metal after the time after swit&dng on of a small polarizing
Oscillographic Investigation of the Kinetic-3 of Electrode 706-12-4/27
Processes Taking Place on Metals Dissolving in Acids
density of the current i. The extreme deviation for the electrode po-
tential of the originally steady value amounts only to 10 mV for this
density. It results fn)m the 6otained equAtions (17) and (18) that the
constant does not depend on th.-3 density of the current i and that it can
be determined fx the relation A ( -t fo-und experimentally. The equa-
tion (22) is obtained the inveltigation of switching off of small
polari;,.atioaa. This equation describes tbe metal potential change with
respect to time in the oourze of the production of its steady self-dis-
solving prooess after swi-%ching off of the continuous current i, polar-
Lzing it.. I-,% results from the equatione 07) and (22) that both the
switch-:,ff and oscillograms of small polarizationn with
1 10 mV. wlJoh were recor0ed on thG same electrode, after a
o,)xr! pun ing trarwfomition of coordinates, must correspond to a straight-
line relationship with the same angle--,oaffioient K. When switching on
gr6at cathode-po2arizatiorz with 1 A I ~- 80 niV, that term which
takes ao,=nt of the aDotig process, may be disregarded J_n the equation
(19). The equation (24) is ottained. (The equation (9) is a differential
tq:aatior. WrJoh. the elac' rod e-charging-praces a describes at the
.Swk';C'hi'ag on, of the cur7vnt i). In the case of switching in of great
Card 2/4 &node-rolarizations, a:.~ analogous equation is obtained from the equation
Osaillographio Investigation of the Kinetics of Electrode 76-12-V27
Processes Taking Place on Metals Dissolving in Acias
(9). The analogous equations are obtained in the same way from the
equation (12), which describes the decrease of the potential of eleo-
trodes after the switching out of the external polarizing current in
the case of ireat cathodes or anode polarizations respectively.
Equations ( 22) ana ( 27).
The equations for the oscillogrems at the commutation of current are
derived in the 3econd chapter. The rules governing the adjustment of
the potential at the transition of the cathode-polarizing density of
the current il and of the potential IPColp COrTeSPOnding to this
density, to the cathode-polarizing density of the ourrent 12l am to
the potential '~M2 corresponding to this density are investigated.
The obtained equations (29) and (30) describe the change of the poten-
tial of the electrodes at the commutation of the curTent in the rwige
of great cathode-polarizations analogously to the previously quoted
equations (24) and (26). In the case of a commutation of the anode
densities of the current, equations analogous to the equations (29)
and (30) are obtained, which differ from the latter only by having the
Card 3/4 inversea sign,3 before 11 ~ and LA (P, and by having the constant b in-
J)
Osoillographio Investigation of the Kinetics of Electrode 76-12-W27
Processes Taking Place on Metals Dissolving in Acids
stead of bi of the anode processes. The equations derived here are
based on the assumption that the capacity of the dotfole layer on the
polarizing metal does not change with the change of the potential.
The elaborate investigation was studied and discussed with professor
Ya.V. DuMin. There are 36 references, 23 of which are Slavic.
ASSOCIATICK: Leningmd State Urliveruity imeni A.A.Zhdanov (Leningradiskiy
gosudarstvannyy uni-eymitet in. A.A.Zhdanova)
SUBMITTED: -Tu1Y 9, 1956
AMIABLE.- Library of Congress
Oard 4/4
KUVTSOV, V.I., starskiy prepodavatell
Investigating the process of friction of clean surfaces during
metal cutting. Izv. vys. ucheb. zav.; mashinostr. n0-3/4:165-172
'58; (MIRA 12:5)
1.7runzenski7 politekhnicheski7 institut.
(Metal cutting) (Friction)
05W PHASE I BOOK EXPLOITA710M SOV/2216
SoveshCnanlye p0 clektrokh-mil. 4th, Moscow. 1956.
Trudy... ; laborn'kl (Transactions of the Fourth Conference on El?ct-
mcnealstry; Collection of Articles) Koscow, Izd-vo AN !SSE,
19-,9. 868 p. Errata slip lnsert~.-. 2,5C0 copies printed.
Sponsoring Agencys Akademlya nauic SSSR, Otdolenlya
na'4k.
3d.) Ac&d.alclan. 0 A ust.
1 Boardr
!.N Prue,.k-n (Poop,
RdItOrI:
: i
r0 -
Pror. to ri S. Zhd;nov (Rep. See tary), B.M. Xaban*v
,
.
.
fossor, 3.1. Zhdanov (Rtsp. Secretary)i B.X, Kabanov, Pt.ess,
Ya. N. Kclotyrk.-n. Doct r of Chemical Sciences, V.V. Lcaev. F_
0
Lukovtsev. Proressorl Z.A. Sclowlyeya; V.V. Stander, Prafeaso--,
and O.M. Florlarovich; Ed. of Publishing Houlet N.C. Yegorov;
Tach- Ed.: T.A. Pruaalcova.
lhtended for chemical and electrical *nK-,-
PURPOSE: This book
la
nears , phys 1, let tal ,urglats and researchers Interested in
.
.
V&r'OU3 aspects of electrochemistry.
ETile boolc contAIns 127 or the 1,18 reports presented at
A
a
:
COZIR
0
rthCo nf. rence on Rice trochemistry sponsored by t" De
u
e
r
ment 0r Chemical Sc-.er-j and the Institute of Physical. Chem
Acad*my Of Sciences. USER. The collection pertains to diff9r,
brooch a I _
e of a actrocrien-cal k*netlca, dowble layer theories a~
galvanic processes In metal electrodepos!ton and industrial elect--
rolyals. Abridged discussions am given At the end or each aivi-
*Ion. The majorl-ty or reports not Included here have been
published In per4odleal literature. No ;srsonalltlea am mention*d.
R*fQ--nC*3 are .,an at tho end of boat of tho article*.
And A,IOshe tIn3titute ar J!Joetrochom.4st-y,
Uademy of~Sclencea, USSR). Efroct or Ato=lc Hydrogen
D-f
f~slon On the Potential of rolarizzed Iron Zlectrodtpoalts
M 82
_K10t'--&kAz. R.N., and Yq. y%,._NjtUl!s (jrstitut kL=.I .
Lhi,zlch.skoy techholcglf AN Lilt. SSR-.Instit.to 0, Che=*.try
and Chemical Technology. Academy Of Sellences, I.Iinuan--an
SSR). Role of Inorganic lens in 'no Process of Elect.,
lYt!callY Separating Hydrogen From Acid Solution, at a
Rotating Cathode 56
lot& 2- and X_A___F~z.jcA.nk. (X-3kOVD1'Y
un. Vero Itet-Mosco. state Un.
-'ralty). :nrluence of' t"
14"re of C&t,'6n3 on Overvolt&ge During the Separation of
Rylrogen Fro.
Alg&lira SOI.tl.1.3 At a Kercury Cathode ~l
111=1"414. - ye__ M. . and I Y.
_Y-$ e I D.p.nJerc. or
H"t-ocen overvaltag ;n r"_ :v~klys.
t e 3 r- ce-Coriditlon or an Iron
C&tnode In an AlKa.:n. Solution 96
Card 5,'--4
Dure!n.,Y.. V., L. K_-ah. mrdt~.I. ~Yrvts (LenlngradsKly
lis a
ve
ralt) A.A. Zndanoy). Lee of
he
I C.AP -c Metf-J 'n :.n-3tlg3t'rg trie Kinotica o,
Ele--t-!e P-~-Pmrs ~tlcn Ta.~ ?.so, at tne Surface of Dis-
so,
.V.'rz Metals
Losev 7 Y and AM. XA,E!r,)(1ratt~teAOf Electroche-tntr7,
o~ ''re'.
.1 or 1--s. . rSH .~M:ne R 1,,dl ......
to S"dY PrOc's3es Or 10~lzftt!Or, And D-acnarde of Neta,,s
tons at AmA'gam Elrctrod~s
116
jQdvY&z-"D-Y- A., and A,I_Stjly&I. 002acow State UnIversi-tj
Charging Curves Of' ?--Cer~ C-1.4lysts ar.d Adsorbent$ 1.5
i~z_s PA4VI, L.I. Xrloht.1 I1~ Rotiny.% n. N. P.
Zh,i,, : T inop-ci)-ko V.V. i( Y. M.A. Gerovich
(D*c... d), A.01' Strom~crg and contributing authors] 1.28
Card 6/ :4
V T 1"_OV 111 . I
"T On
sollition. Pnrt P.: in r-,!31
c
V, IP'U IF,
Ni-, :.I)
5(l)
SOV/80-32-4-45/47
AUTHORS: Kravtsov, V.J. and Polovoy, Yu.N,
TITLE: A Device fn- Preparing Salts From Metals by T-1-leir &nrAe
Sol-ati.c'm (Pribor dlya polucheniya soley iz metallov putem ikh
anodnogo rastvoreniya)
PERIODICAL: Zhurnal prikladnoy khimii, 1959, Vol 32, Nr 4, PP 935-937 (USSR)
ABSTRACT: Metals are frequently used as initial products for preparation of pure
salts. However, the spontaneous dissolution in acids of some metals
proceeds very slowly, This pertains to such metals as Cd, Zn, Pb and
Sn~ Therefore the authers propose to apply the method of anode dis-
solution of metals and describe a device for obtain.;nC CdS04 from
granular cadmium. Cadmium rods serve as an anode and a cathode in this
device intc which sulfuric acid is poured. Direct current with a
Voltage of 15 v and intensity of 1.5 amp is applied. Dissolving
granules of metal cadmium form the CdS04 solution which accumulates at
the bottom of the device due to its greater specific gravity. The
Card 112 method has an advantage that a considerable part of impurities, present
SOV/80--32--4-45/47
A Device for Preparing Salts from Metals by ]Ilef.:- &-,de
n the initlal metal, does not go over Jnto
I
centration decreases by as much as an order
with the initial concentratior, according to
analysis. The authors thank Profo-sor Ya.V,,
valuable advIces .
There aret 1 diagram and 7 references, 5 of
English.
ISUBMITTED,-
0:,tober 23, 1957
their con-
the solution,
of magnitude in comparison
results of the spectral
Durdin for a number of
which are Soviet and 2
ICard 2/2
5(4)
JIT2;; 0!~ 4. LCIV176-33- 1 -2a14~
Occillot;raphic lrivesti-,ation of the 1"inetics of Electrode
Processes on Metallic 1-:1cctrodos (OstsilloUr,~ficheckoye
i~,sledovaniyc kinetiki protsessov,
protekayushchikh na elo:,trodakh)
PE I I C A L: Zhurnal fizicheskoy Vol 1, PP 165-173
(Ussr')
AK:`1A C '2 Investigations of ele~~trode processe-, on solid netallic
electrodes become diffictill. by tile chan,j,-e of' the surface
extension and activity deree of tile MOUL111C eluctrode while
plotting the polarization curves (Refs 1-7). V. A. Royter,
V. A. Yuza, Ye. S. Poluyan, and L. D. opyl (Reft 8-10)
successfully used the occillo.-ralphic method in these
investigations, For analyzin,- the occillo,-,rams on switchinS on
and off the direct current the authors mentioned last used an
equation with a non-pertinent suppooition. Paper:, by Gerischer
(Geri sher) (jief s 12-14) -how that this supPouition is
non-pertinent. Papers by Audubert (Odyuber)('I~cf 17), llatl,sson
and Lindstr6m (Lindstrein)(11'ef 16), Srok-- and ."ischer
Card 1/2 (I~cf 19), and 0. A, Ye.9in ntrid L. 1. Antropov (Pef 20) ohowed
0 a ci I I ographic Inv eutigation of thr: 1;,, /7 6- 33 - 1 - 28 145
Electrode Procesneo on
different reoulto for thc~ crim.t rx and P as compared to
the paper menti~,n(.,d ilc)vc. 10). F,--r this reason the
investif;ati'.ons under %yore carried outs The reaction
of a copper fioc+rode wa3 t,-~f;tnd in a I n CuSO 4 n 112so 4
,;.--)Iution in r, hydroCon atm,,-,ophere- at 250'. Trie osiillorrams
wers.? plotted in the pi-Dxl-mity thu, ~~quilibrdurl potential of
the -,oppor electrode, (-~10 iwr), G. T. Andre.yeva meajured th(~
influen,-~e of th~- )1Ydr'(),,0n It. is Otlated that thr.
polarization of the coppnr eirctrodo ij, determined by t-tic
delayed e-urrent of the dischart,,e--ionzatiori and the
conceTItrat:;on chanae,: iii thi a(,tivk- se-ctions of the clectrude
surface, Thn val,,.i,? i,-~ -'.7-',0--3 A/rTr.2 (Fif,' 5) was calculated
! /2
for the exchange current from thi- linear function Lf .-t / 0
and, in Lwcordanc,~ ---,~th !:,J 113on (Ref 27), tile amount of the
active (..Iectrode surface stated as There are
5 figrures, 1. tablo, and 27 reforew-oti, 16 of which are Sov.-Ict.
ASSOCIATION- Leningradsiriy gosudarstvennyy univer~;itpt im, A, A., Zhdanova
U
(i.eningrad State Univeroity imeni. A. A. Zlidanov)
SUBIMITTI, D: Ju1Y 5, !957
Card 2/2
ZINOVOY17, V.A.; KRAVTSOV, V.I.
Anodic solution of cadmium in salfuric acid solutions containing
cadmium sulfate. Vent. IOU 15:95-100 160. (MIRA 13:2)
(Cadmium) (Sulfuric acid) (Cadmium sulfate)
S/076/(;0/034/000/031/'3!1xX
B020/BO56
A"TFORS: Chzhan Chzhi-bin, Kravtsov, V. I., and Durdin, Ya. V.
TITLE: Kinetics of Electrode Processes on Solid Electrodes.
I. Anodic Polarization Curves for Nickel in Sulfuric Acid
PERIODICkL: Zhurnal fizic~heskoy khimii, 10,60, Vol. 34, No. 9,
pp. 2041 - 2054
TEXT: It the purpose of the present work to determine the true function
i(j) without disturbine moments for the anodic dis!7olution of a metal as
well as the invectifetion of the activation of a metallic electrode under
the effoct of anodic polarization. A nickel electrode in H 2so4 was in-
ve-tirl-.to~,', wEere it is known that in the anodic polarization of Ni in
F2SO4 no noticeable concentration polarization or passive-lion is observed
within a rather wide range of current density. The activaticr, of Ni-elcc-
trodes by an anode current, on the other hand, 13 known. The i(,f) and -?(t)
curves were recorded by means of an electric measurinr. device with the help
of a catl.ode voltmeter and a figure-eight lor)rj oncilloscop,2 -.%ith two-
Card 1,14
Kinetics of Electrode Processes on Solid S/Q7(/60/0"4/009/031/OA1X)r
Electrodes. I. Anodic Polari7,ation Curves ]30140/BO5~'
for NicL-el in Sulfuric Acid
c, sc,;de-d.c.-amplifier. The electrodes Wert, provide(I ~y a rollvld foil of
ure--!'.-i of "Hilt-
p er" trado-mark, which htd boen m.-do avail!ible by Profe- no
Ya. M. Kolotyrkin. In the present paper, the re,--ult.,l '1,taired in 1 N and
10 IT F2904 at 25 + 0.10 are given. The potential of th--~ nick,21 anode
changed v6ry consiserably in time after a cur-ont of corstant dersity was
switched on. The curve abe in Fi(~. I dercril-(?~; th- in the potential
of the previously automatically dinsolvod nic'-,.~] (1(,-trodo in 1 N H-)SO"
immedirit~,ly after the anodic polarization rurn!nt .,.-ith a deno-ity of
0.04 Ma/cm 2 had been switched on. Curve 1 in F16. 2 i.-, thr? "steady" anodic
polarization curve ~ = f(loC I), which had been or. the basis of the
potential on an Ni-anode in 1 N H 2so 1. after havinE been h,-ld for a long
time under Oteady conditions and variouo of thf- current 1. From
FiC. 2 it follows tKat in curve I there io no --,ection; however, or.
the curves ~ = f(loU I) linear sectiun-,, founi, to which
coefficient.,!, bFiv of 19 to 30 mv corre~-,pondf:d.~ITe -~)!(.rization curvp
II in Fif-. 2 wa.-, drawn on the ~,f t~,-! f~e "change-
Card 2/4
Kinetics of Electrode Processes on Solid S/076/60/034/000/071/04M
Electrodes. I. Anodic Polarization Curves B020/B056
for Nickel in Sulfuric Acid
over" method on an electrode held at i = 2 ma/c-m Curve I!, in contract to
curve I, has a large linear section, tr, which there corresponds an angular
coefficient of b = 92 mv. The results obtained by oscilloscopic measure-
ments on automatically dissolving electrodes are given in a tab`o, from
which it follows that the difference between the q = f(loE i)-curves,
recorded in the same 10 N H?304 -solution, is 56 mv. Irrespective oil the
considerable snr,~ad of the individual points, Fig- 3 shows that the volume
of the double layer on the Ni-electrode is only little dependent or, the 1-~,tcntial
in a large potential range. Fig. 4 shows the characterirttic T ~ f(lo,-_- 0
o I c' in,-
curves, recorded on one and the same electrode after a lonf,-tine h
at three different current densities. Table 2 shows the mean valuec of t'heNj
coefficients bl, which correspond to the ~P = f(log i) curves, recordcd on
an Ni-electrade previously held at various densities of the activnitinn
current. The curves C - Y in Fig. 5 correspond to the same surf_qci~_- :--t
of the rickel electrode as the anodic curves in FiC. 4. FiC. 6 shows the
steady (p = f(log I)-anode curves, recorded on nickel in 1 N' and 1~ H so
The data of the anodic change-over oscillograms in I N and 10 N H 30, 2
2 "
are riven in T~-bles 3 and 4. The dependence of the potential of the nickel
Card 314
Kinetic~l or Electrode Processes on Solid S/07u'/(,()/C)34 ~0'1 'W1XX
I / '/-, /
Electrode:;. I. Anodic Polarization Curves BO2O/B056
for Nickel in Sulfuric Acid
arode on the logarithm of the true current dersity of the precedin'-.
anodic polarization is given in Fig. 7. Mention is :uide of V. .1. Yu.-.a,
L. D. Kopyl, V. A. Royter, Ye. S. Poluyan, A. T. Vagra-myan, ar.d
A. 1'.. Frumkin. There are 7 figures, 4 tables, and 31 16 Sovietl
1 US,, 6 British, and 8 German.
ASSOCIAT-017:
SUBIi.I";T---D:
Leningradskiy gosudarstvennyy universitet i-... A. A. Zhdaanova
(Leningrad State University imeni A. A . 7111.IrOV)
December 26, 1958
Card 41'1
KRAVTSOV, V.I.
Device for recording potential - time curves in the event of
instantaneous changes of polarizing current densities. Zhur.
fiz. khim. 35 no.5~.1144-1146 W 16:1. (MIRA -16:7)
1. 1--ftingradskiy gosudarstwnnyy universitet imenl Zhdanova.
(Electric meterso Recording) (Electrochemistry)
S/020/61/136/005/027/032
BI 01
AUTHORSt Kravt3ove-V. I. and Yermolova, A. F.
TITLEi Stealy potentials of zinc and amalgamated zinc in sulfate
s,Dlutions containing variable amounts of zinc and hydrogen
Jon 9
FERIODICALj Doklady AkademJI nauk SSSR, v. 136, no- 5, 1961, 1146-1149
TEM A. W. Frunkin (Ref. 1) showed that during dissolution of metals in
acid electrolyll,er,., both equilibrium potentials and non-equilibrium
potentials can oc,.tirl, depending on the ratio of the electrodic processes
proceeding on the dissolving metal. Therefore, an attempt has now been
made to find out whether a transit~.on from non-equilibrium to equilibrium
potential is possible by changing the concentration of acid and zinc ions
during the dissolution of Zn in sulfuric acid. Ha 2so4 containing dif-
ferent amolints of H250 4 and ZnSO 4 served as electrolyte, the total con-
centration H 2s04 4- Na 2so4equaling 1 N. Polycryntalline zinc with
Card 1A
02%6"'136/005/027/032
Y B
Steady potentials of -zinc and ... B, A
1-10
_4% impurities served as electrode. Measurements were made at 250C in
a hydrogen atmosphere. Tho potentials mentioned are related to the zero
potential of the hydrogen eleetrods. Fig. I shows the steady potential It \/~
as a function of log Zn"+l for different concentrations of H 2so 4& 0
Linear dependence according to the Nernst equation was found for
so -3
10 N and 1Zn 1 between 3*10 and 1*10 N. In the case of
L 2 41 = j
amalgamated zinc (Fig. 2)p, the linear dependence is maintained at higher
concentrations of H 30 than is the case with zinc. The deviation from
2 4 1
linearity is explained by the increasing effect of the hydrogen ions. The
following is written downi
k I- H+' exp(-~F~')RT) - k' exp(r, F.VRT) - k,I'Zn"+'I. exp(-.~,RIVRT) (1).
-a 2 1
. +-1
H I , Zn++'l are th3 concentratione on the electrode surface. With
- ; a 11, Js
thorough intermixing of the electrolyte, this concentration can be set
equal to the concentration FH+"),O, Zn ++] in the volume of the solution.
I_ . 0
The steady potential,fl 1.9 more positive than the equilibrium potential
0
Card 2/ 6
S/02 61/136/005/027/032
Steady potentials of zinc and ... B1 01=6
: 6 f - 1P 1. - f . Assuming EH+j - 1 and subatitutin
To 0 g ft. to
in (1), the following relation is found for the discharge rate I01 of the
hydrogen.ionst II H+_ exp (-.(F /-f/RT) - i (OXP fi IF -0 ?1RT-eXP'(-VI FA4 f/RT)
0 -_ ~o
(2). 1 is the exchange current at a given concentration Zn++7 Tha
0 0
solution of Eq. (2) reads S,
46 a + k ~ log [1 - exp(-2FA'P/RT )] + PHI (3), where
a -2-3RT/L'E(J,+P1)j log(iofH+/101); k - 2-3RT/F(j(+Oj) M- 6a is 'con-
starit at E&I = const; fe M const. ~Eq. (3) was valid for amalgamated
zinc, whether the solution was intermixed by bubbling of hydrogen or by
means of a magnetic stirrer. When using zinc electrodes, thorough-inter-
mixing caused a positive shift of their potential (Table 2). A'deVi:ation
from Eq. (3) was observed during the dissolution of the zinc electrode **
in a strongly acid electrolyte. The deviation is traced back. to
activation of the electrode surface, which sets in at a high rate of dis-
solution. A. L. Rotinyany 11. P. Fedotlyevp and Li Un Sok are,mentioned.
Card 3/6
S/020/61/136/005/027/032
Steady potentiale of zinc and BI-01 /B206
There are 3 figures, 2 tablesp and.12 references: 12 Soviet-bloc and
1 non-Soviet-bloo.
ASSOCIATIONt Leningradskiy gosudaretvennyy universitet im. As-A. Zhdanova
(Leningrad State University imeni A. A. Zhdanov)
PRESENTEDt July *20, 1960, by A. H. Frumkin, Academic'n
SUBMITTED: July 9, 1960 - W P 1.4
Legend to Fig%. 1 . Steady potential of
zinc at H 2so4 concentrations oft
1) 10-4 N; 2) 5-10-4 N; 3) 10-3 N; V
10-2
) N; 5) 10-' N
4
Fie. 1 -4
Card 4/6
'~E E5
Steady potentials of zinc and ...
Legend to Fig. 2. Steady potential of
amalgamated zinc at H SO concentrations
2 4
0-2
oft -1) 10-3 N; 2) 1 N; 3) 10
4) 2- 10-2 N; 5) 5-10-1 N,- 6) 1 it
S/020/61/136/oO5/b27/032
B101/B206
-SOO
K%N%x
20
-4
Fig. 2
S1020V611136loo5lO271032
Steady potentials of zinc and B10,I/B206
Looend to Table 2. Potential shift T&6Axm& 2
Ynix (mv) owing to intormixing of Comrif naTemmims ummmoro mexVm
ATn (MO), NAOAIOAADWRtCR 110A samiem
elmtrojyte.
jZnSO,j. N
10-1 2 0 4 5 8 0 95 90 0 3
10-1 t:0 4:0 6:5 10:0 8:5 0:5
10-1 0 1 1 Is 8.0 9.5 5.0 015
Table 2
Card-6/6
0
8/054/62/000/002/ 10/012
B117/B101
AUTHORS: Kravtsov, V. I.P.Yang Plen-chao
T-ME: The kinetics of anodic dissolution of nickel in acid sulfate,
electrolytes with variable pH
PERIODICAL: Leningrad. Universitet. Vestnik. Seriya fiziki i khimii,
no. 2, 1962, 107 - 116
TEYT. The anodic dissolution of high-purity electrolytic nickel in acid
(PH - 0.4 - 3.25) solutions (I-x) N Na 2so 4 + x N H2so4 was studied by the
galvanostatic mathod. The electrolytic cell and method of measurementwere V_/
as previously described (ZhFKh, 34, 2041, 1960; Vestnik LGU, no. 22, 131,
1957). The rate of anodic dissolution of nickel was referred to the unit
of true electrode surface. Analysis of the "nonstationary" anodic polari-
zation curves 9 - log i showed that owing to preliminary polarization an i
increase in current density was attended by a shift towards negative
potentials and that the slope bA (87 t 5 mv), corresponding to the linear'
sections of these curves was independent of pH Analysis of the
"stationary" anodic polarization curves 9 - lo~ -iv, showed a linear
Card 1/3
5/05 621000100210101012
The kinetics of anodic dissolution... B1 17YB101
relationship between the potential and the logarithm of the "true" current
density and the slope b at " 39 mv. The rate of anodic polarization of
nickel visa independent of PH in the range of PH - 0.40 - 1.75. An in-
crease of PH between 1-75 and 3.25 accelerated the process at constant
potential. (Jy/aPH)i, - -45 mv holds for this range. Comparison between
tho 'Istati*onary" polarization curves determined here for thermally
treated nickel and those for rolled nickel (ZhFKh, 34, 2041, 196o) showed
satisfactory agreement. Based on the experimental results a mechanism of
anodic dissolution of nickel in sulfate electrolytes was suggested. MW
was.assumed to form on the nLckel surface. Under steady conditions, this
reaction is reversible.,iihe second stage, forming NiOH+, is irreversiblei
but the third, forming +, is reversible again. From the theory of
retarded discharge the rate of anodic ionization was expressed by
iA - kTNiOH1exp (~F?/Rfl (where P is the transfer coefficient charaoteriz..6.
ing the effect of the potential on the separation of an electron from thei
NiOll group). After several transformations, the equation
bq/do4k - 091a log i- 2.3LRT/(j1+iA)~]' (a)
A PH
iCard 2/3
5/054/62/000/002/010/012
The kinetics of anodic dissolution ... B117/B101
was derived. This equation agrees well with the experimental results,
and resembles the mechanism suggested by J. 01M. Bockris, D. Drazio,
'. R. Despic (Electrochim. acta, 4, 325, 1961) for the anodic dissolution
of iron. In strongly acid electrolytes the NiOll groups are instable, and
so 2- groups replace the OH_. In this case the rate of anodic dissolution
4
of metals.will not depend on the pH of the solution but in the anion con-
centration. There are 4 figures and I table.
SUMMITTED: October 30, 1961
Card 3/5
KRAVTSOV) V.I.j YAN PIENI-CHZHAO
Kinetics of the anodic solution of nickel in acid sulfate
electrolytes of variable pHe Vest.IGU 17 no.10:107-3.16 162.
(KMA 15:5)
(Electrodes, Nickel) (Electromotive force)
(Hydrogen,ion concentration)
fmAVTSOVP V.I.; LOKSHTA140VA, O.G.
Kinetics of electrode processes rin solid electrode.-. Part 3
Zhur. fiz. khim. 36 no.11:2362-2367 14162. (M1RA 17:5)
1. LoningmdAly gosudarstvennyy unlvpriltot Imeni ZhdanoAa.
KRAVTSOV9 V-I-j SIMAKOV9 B.V.
"Galvanostatic Study of Electrochemical Reactions at Instantaneous
Changes in the Current Density.8
Report presented at the lhth meeting CITCE.. Intl. Com. of
Electrochemical Thermodynamics and Kineticep Moscow,, 19-25
Aug 63,
The Universityp Leningradp UoS,S.R*
KRAVTSOV, V.I.; ZVEREVICH, G.V.
Galvanostatic study of the processes of electrodeposition and
anodic solution of zinc in zinc perchlorate solution. Vest.
LGU. 18 no.16:103-109 163. (MTRA 16:11)
KRAVTSOV, V.I.; MASLYAKOVA, 1.0.; GOMP,0221AV, Zh.
Galvanostatic study of the cathodic process of hyarogen evolution on
cobalt nnd nickel in acid sulfnta electrolytes. Zhur.fiz.khim- 37 no.
10:2333-2336 0 163. (MIRA 17:2)
V. I.; SIMAKOV, B. V.
KjiJitic.s of electrodu in tt, oyqterr, --hic-rollatiruitot
ion-chloroplatinite Ion. Vent. i61) 11) no.IW,','~-100. 164.
(MIRA 17:7)
KRAVTSIV, V.I.; PETROVA, G.M.
Galvanostatic investigation of the processes involved in
the charge-exchange of chloride coviolfted of iridium.
Dokl. AN SSSR 154 no.2:433-436 Ja'64. (YJRA 17-2)
1. Leningradskiy gosudarstvennyy universitet im. A.A.
Zhdanova. Predstavleno akademikom A.M. Frum),Inym.
PAVII-i-V , 1 V. , karial . tek h n. r a ul, ; ."1 9 V. i . ,
1-.',ffect of the a.c. traction network on thi- ind~iotxial ~-itr,xtures-
7hel. dor. transp. 46 no-8:/a,-48 Ag 1~.,4.
, KRAVTSOV, V. 1. 1 S DMOVO B. V.
Effoot of ohlorine ions on the adsorption of oxygen on platinump
rhodium~ and iridium. Vast. LGU 20 no.4:103-105 165.
(MIRA 18:4)
4
TRAM"'31 Mo 31MAKOVI n4vo
Kinetics Of electrode processes in the chloroplatinate ion - chloroplatinite
ion system. Vest. LOU 20 no.IGM-85 165. (KRA 18s7)
45527-66 EWT(M)/EWP(JJ/T/EWP(Q/ET1 lip(c) J /RM
7A~-C-N R-,- _AR6_o_1__3_7__1_0__ SOUPICE CODE:-- W66016~loo6ldW F02/jim_' .
AMIOR: KravtDov, V. 14.
TITLE'- Temperature dependence of the rate of propagation of longitudinal waves in
CBr.,)Il
S_65CE: Ref. zh. Fizika, Abs. lozh487
REF SOURCE: Sb. Primeneniye ulltraakust. k iBsled. veshchestva. vyp. 2o, m., 1964,
95-im
ITOPIC TAGS: carbon compound, bromide, longitudinal wave, wave propagation, phase
transition, temperature dependence, ultrasonic wave, ultrasonic velocity
ABSTRACT: By measuring the vel y of propagation of longituYpal waveG, the autho
investigated a phase transition~w
the oriented melting type irf CBr4 ~Lr!Kle
Measurement was made of__th_e_~F6m_perature dependence of the velocity of lorgitudinal
waves in CBr4 above the temperature of the orientated melting. The measurements were
made at frequencies 3.2-4 Mcs. The value obtained for the temperature coefficient of
velocity above the phase transition point (406.9C) is (2.05 � 0.14) X 10-3 deg-. Th,,,
results of the investigation of the phase transition are compared with data by other
authors. From the values of the speed of sound the author calculates the elastic con-,
stants, which are compared with those obtained from the Born theory. It is noted that
the change in the velocity of ultrasound during the phase transition can be due essen-.
tially to the change in the intermolecular distance. Bibliography, 23 titles. V.
1~yamov. [Translation of abstract]
20
i, 45~30_66 -,WP(j)/"1'WT(1)/EWT(m) RM
ACC NRs AR6013714 SOURCE CODE: uR/OO58/65/OOO/O10/W74/H074
AUTHOR: Kravtsov V M
TITLE: Investigations of the,absorption of ngitudinal waves in single crystals of
carbon tetrabromidejand paradichlorobermene
SOURCE: Ref. zh. Fizika, Abs. 1OZh498
REF SOURCE: Sb. Primeneniye ul'traakust. k issled. veshchestva. Vyp. 20. M.p 1904p
101-105
TOPIC TAGS: carbon compound, bromide, single crystal growing, organic crystalp ultra-~
sonic velocity, ultrasound absorption, temperature dependence
ABSTRACT: Apparatus As described for growing single crystals of carbon tetrabromide
aAd paradichlorobenzene from the melt by the temperature-gradient method. Single
crystals with lengths up to 25 mm were obtained, in which the velocity and damping of
ultrasound were measured by an echo-pulse method at frequencies 3, 9, and 15 Mcs.'
Results are presented of the measurement of damping in CBr4 and in paradichlorobenzenel
at the indicated frequency. In the paradichlorobenzene, as the temperature changed I
from room temperature to the melting point, the absorption did not change even in the
case of the polymorphic transformation near the temperature 30.8C. The polymorphic
transformation point was identified by the abrupt jump in the speed of sound. Measure-
ments of the sound absorption and velocity near the temperature of the orientated
melting, 47-8C (which was observed by other authors by the method of quadrupole nucle-';
1/2
~,;" ~' ~ `
L 45530-66
ACC NR: AR6013714
ar resonance), disclosed no singularities whatever. For CBr4, no temperature dePer-
dence of the damping vas likewise observed. The damping of ultrasound in CBr4 is
larger than in paredichlorobenzene. V. Lyamav. (Translation of abstmct)
SUB CODE: 20
2
L-4-29674-66 ~w iy~wqj)IT ijp( c)
ACC 'W~.! SOURC.4 Cbzg: LW601166TOO01007
24993
AUTLHOI: Kravtaov, V. N. 0
TIME: Tenmerature dependence of the velocity of sound in polytetriauoroe!~jLlinej~-
SOURCE: Ref. zh. Khimiya, Part II, Abs. 7S64
REF SOURCE3 Uch. sap, Yosk. obl. pod. in-ta,,v. 147j 1964v 161-164
TOPIC TAGS: sound propagationp polytetrafluor6othylone
'03T.
- IICT; The temperature dependence of the velocity of sound in FTFFE was studied in
the range of phase transitions, The neasurenont technique has been described
(P-axhim, 19629 9M7)x but in order to incroase the accuracy, the minima of the re-
sultant vibration were used instead of the maxima. The temperature dependence of the
sound velocity shows a slight minimum in the region of the phase transition at 200.
The phaso transition at 300 causes a change in the temperature coefficient of the
sound velocity. V. Yusfin. [Translation of abstract]
SUB CODE: 11g20
Card
___L. 329 /py
ACC NR: AR6oi6266 SOURCE CODE: uR/oo58/65/O00/0ll/u)61/n)6l
Yxav-taoV, V. M. J
TITLE: Temperature dependence of the speed of sound in polytetrafluoroethylenel
S0711CE: Ref. zh. Fizika, Abs. llZh425
REF SOURCE: Uch . zap. Mosk. obl~ ped!_JR-t&_y_, 147, 1964, 161-164
TOPIC TAGS: acoustic speed, qp;~~ temperature dependence, acoustic mea-
surement) thermostat
ABSTRACT: The temperature dependence of the speed of sKnd c) in the pq3g
'W" poly-
tetrafluoroetbylene was measured near the phase transitions (at 20 and JvC'). A modi-
fication of a method previously proposed was used (RZhFiz, 1962, 1G398). A block
diaeram of the apparatus is given. The change in frequency was from 3 to 4 NIcs at
I - 1.5 rim and c - 1320 M/sec; the length of the sample I was determined accurate to
�0.01 ".., and the frequency of the minimum accurate to �1 kcs at a thermostati~g ac-
curacy �0.02C. A plot of the temperature dependence of c is given; it shows
minimmun in the phase-transition region at 20C. The phase transition at 30C is mani-
fest by a change in the temperature coefficient of c. To check on the influence of I
the thermostating conditions, c was measured by an analogous method at 500 kcs with
an error not larger than 1.5%. It is established that the results for .500 kcs and
for 3 - 4 Mcs coincide in the entire temperature range of the measurements. 1. Niko-1
layeva. (Translation of abstract)
SUB CODE: 20
Card 1/1
v rAl
It
0r.
TOMASHIN, A.K.; KIRYUSILY-IN, K.I.; SHIPITSYN, A.V.; KRAVTSOV, V.M.;
POMINOV$ S.Ya.; BUSHUIEV, T.I.
Basic trends in the development of tank farms; results of the
discussion of the article by A.G.Dabiaga and otherepublished
in "Neftianoe kho2i&istvol no.8. 1960; conclusion. Neft.
khoz. 19 no.,4:60-64.Lp 161. (MA 14:6)
(Petroleum-Storage)
(Dubiaga, A.G.)
KRAV,T,SOT,, V.M. (Azerbaydzhanskaya SSR).
In reference to the proof of the theorem on the sum of plane
angles of a convex polftedral angle. Mat. v shkole no-5:45 S-0 158o
(MIRA 11:10)
(Angle)
KRAVTSOV, VA
Sound dispersion nftr the points of phase transition of tho
second kind. Akust. zhur. 9 no.2:239-24:L 163.
(MIRA 16:4)
1. Moskovskiy oblastnoy pedagogichealciy institut imeni N.Ka
Krupskoy. (Aboorption of sound)
DROBASHCHENKOI Ivan Tikhonovich; KWOFONTOVt Aleksandr 11ilovich;
.--ERAVTSW-i-V.N.j prepodavatell, red.; MAKHOTENKO, B.S.t pre-
podavatell, red.; MIRSKAYA, V.V., red.izd-va; ILIINSKAYI, G.M.9
tekhn.red.
(Fundamentals of electronics and radio engineering] Oanovy
elektroniki i radiotekhniki. Moskvaq Goo.nauchno-tekhn.izd-vo
lit-r7 po gornomu delup 1961. 283 p. (MIRA 34:6
1. Rostavski7 gorno-olektromekhanicheakiy tekhnikum (for lvartsov~.
2. Novocherkaoskiy khimiko-tekhnologicheakiy tekhnikum (for
Makhotenko).
(Electronics) (Radio) (Transistors)
STRYUKCYVSKIY, L.S.; KRAVTSGVt V.N.; DZHANDYBAYE-V, F.
Not less than a 1000-m advance along a longwall in a year. Ugoll
Ukr. 7 no.7s43-" J1 163. (MIM 16:8)
1. Shakhta "Ukraina" tresta Kommunarokugoll.
(Coal mines and mining-Labor productivity)
MO."W"HIN")KAYA, N,F.; KRAVT~10vl, v~",
D I ~t ry 1, ino thrinn i it r,,' 11, f; ~ r i,, , !7 it I, IV I. :i ,I ~ I ~ - 1. 1") 1, !5 (9 - - ", - i ! I - j I
mvi I ~,;iups Cor t i - ~ or, Cl." , [!',~r. ~.hl-tp.zhur.
r. c . i - 9 5 ? - - 9 6 2163 . (Ml!;,, 17 -,. ~:
I
1. r.rF.Zop-trr)vEk~j f,~'O~r
MOS11C, H P 15 rAYA , I I. F. , (1,1,kt(;i- kh Ain . nauk; YK; I T".'X11, , 'i .",. , L-.11r-1. tnkhn. W)uk;
Vjd!rOV_llYJY, :~.?. ; M Mll I V~IV I C H, 0. 1. ; I OT I Y`-X';?,~',V~ 3.1. - YPJ VT")7
" '.' 9
_v.S.; KUTSYGINA, V.V.; ','~NLYANS)MtYA,
New birldero Jn tho production uf partiole boards. illun. i der. prom.
no.2:14-19 ~p-,To 164. (mm-,..
I'VOSKIN, V.L.; STARMV, I.N.; BUGIRL, N.A., tekhnichookiy redaktor;
KRLVTSOV, V.S., redaktor.
[Forging manipulator] Kovochnyi manipuliator. Sverdlovsk, Goa.
nauchno-tekhn. izd-vo mashinostroit. t sudostroit. lit-ry[Uralo-
Sibirskoe otd-nial 1953- 16 p. Oa2L 7:8)
1. Uralo-Sibirskoye otdolaniye Xashgiza (for Yzavtoov)
(Forging machinery)
-,~- I ~ T- - ;'i - r -- ,--
z\ I- - - j J.
YASMT, D.A.; YARTMIN. G.H.; DUGIVA, N.A.. takhnichookiy redaktor;
KRAVTSOV, V.S., redaktor.
[Aid to the operator of the M3 excavator. V pomoshch mashinistu
ekskavatora M3. Sverdlovsk. Gba. nauchno-takhn. izd-vo mashinostroit.
i sudostroft, Ilt-rv rUralo-Sibirskoe otd-nial 1953. 50 P. (MI-RA 7:8)
1. Uralo-Sibirskoye otdalenlye Hashgiza (for Kravtoov)
(3kcavating machinery)
YAGNYATINSKIY, S.O.; M~IK, M.M.; KRAVTSOV..V.S., vedushchly rectuktor;
DUGINA, N.A., tekhnicheskiy FeUktor.
[Automatic lines for grinding bearing parts) Avtomatichaskie liaii
dlia shlifovanila detalei podshipnikov. Moskva, Gos. nauchno-tekhn.
izd-vo mashinostroit. lit-ry, 1954. 31 p. (MIRA 8:1)
(Grinding and polishing) (Roller bearings)
KUZIFEITSOV, A-P.; GORHWV, VJI., inzhener. radak-tor: KRATTSOV. V.S.,
reduktor; DUGINA, N.A., talchaicheskiy redtJ-.tor.- ----
[Drilllngl Sverlanie. Pod red. V.H. Gnrelova. Izd.2-a parer.
Moskva, Gos.nauchnn-tekbn.tAil-vn nashinostroitel'noi lit-ry,
1955. 45 p. (Nauchno-popullarnain bibliotaka rabocbago
atanochnika no.13) (I-ILRA 8:10)
(Drilling and boring)
_Nl.- Z6 :- -i~j , N
EWT Rh
ACC NRs AP6000326 SOURCE CODE: Un/0286/65/000/0211/0014/001-
INVENTOR: Kravtsov, V. S.,It Moshchinskaya, it. Y,.`i "!iryan, 11. 1.
M%W%TTM104~ ___
ORG: none
TITLE: Preparative method for 2-vinylanthracene.7 Class 12, No. 175935
SOURCE: Byulleten' lzobreteniy I tovarnykh zndov, no. 21, 1965, -14
TOPIC TAGS: vinylanthracene, dehydrogenation
ABSTRACT: An Author Certificate has been Issued for a preparative method for 2-vinyl~
anthracene. To widen the range of suitable raw materials and to simplify the proceso
2-methyl-4-ethyldiphenylmetliane [sic] is deby,lrogenate(l over activated-charcoal or
manganese-oxide catalyst on pumice carrier at 600C. [SMI
SUB CODE: OV SUBM DATE 29May63/ ATD PRESS:
Card 111 4IA2 upc: 547.672.2.07
Ki-'A Ir.!!.
,I(jefianitimu of changen in tht! blood F.Iculre III "'ro"'cilred
,jOcj(,(,,ptjve otlunilation. Blul. eksp. Mol. i 6,(1 nri.11:
34-36 11 165. (MIRA P:1)
1. Dlaj;oveshchenskly i Luganskly vieditsluskiye lnstlt~Ay
(rauchnTj rukoveditell raboty - pror. 5-1% Dionesov". Sub-
mittect Junp 8, 1964.
ACC NP" AT6035248 SOURCE CODE*: Ui(/ '104 3/66/000/0(6/0~1
AUTHOR: Xravtsov, V. V.
ORG: none
TITLE: integral equations in diffraction problems
SOURCE: 'Moscow, Universitet. Vychislitel'nyy tsentr. Sbornik rabot, no. 5,.1966.
Vych.-*Slitel'nyye metody i programmirovaniye (Computing methods and programming), 260-,
293
TO?1C TAGS: integral equation, wave diffraction, algorithm
ABSTRACT: -~he problem, of wave diffraction is one of the oldest in physics, and in-
terest in it has grown with the rapid development of the radiophysics of high-fre-
quency waves, radar, sonar, and long-distance radio cor-nniunication. The problem also
involves matters of antenna design and construction. The so-called physical theory
o~ di"raction -s the most widely used method of dealing with diffraction problezs.
This theory is a further development of the methods of geometrical optics and an
attempt to penetrate the longer wave region. Despite its usefulness it has no rig-
orous mathematical basis. The mathematical problem of diffraction reduces to solving,
a wave eciuation (in the scalar case) or Maxwell equations (in the electromagnetic
case) with certain initial and boundary conditions corresponding to the specific type
o
f incde
i nt field and obstacle shape, It is exactly solved only for a limited number:
Card 1/2
ACC' NRj A76035248
of bodies (sphere, infinite cylinder, wedge, and a few more). Computer technology has
made it possible to propose less idealized and more practical solutions. It is
urgent that algorithms be developed for high-speed computer solution of the diffrac-
tion problem. -1he present paper has as its aim the development of a uniform algo-
rithm'for investigating problems of diffraction of waves of varying nature (acoustic
and electromagnetic, stationary and nonstationary). The basic working apparatus is
integral (more exactly, integro-functional) equations of the first kind of the Fred-
holm type with regular nucleus. These are chosen because integral equations of the ;i
sacond kind have a strongly polar nucleus, which complicates num ations.!
'~>rical calcul
7n a number of cases moreover, e.g., the surface of a body of revolution, integral
equations of the first kind permit transition from two-dimensional to unidimensional I
I equations, simplifying the computations. OriG. art. has: 118 formulas.
SUB CODE: 12, 20/ SUBM DATE: none/ ORIG REF. 006/ OTH REF: 001
I Card 2/2
USSR / Hutan and Animl Physiology. Blood Chomistry. T
Abs Jour Rof Zhur - Biole, No 15, 1958., No. 69986
Author Kray-te qy,. V. V.
~Ivon
Inst Not
Titlo Tho Problom of Changos in tho Contont of Erythrocytos and
Hamoglobin in tho Poriphoral Blood in Prolongod Nocicop-
tive Stimulation
Orig 1~tb Byul. Ekspor. Biol. I &d., 1957, Vol 43, No 2, 30-34
Abstract In sovon does and fivo rabbits studios woro mado of tho
i-olo of tho uploon in changoo of blood campooition.
Splonoctomy prior to and aftor tho infliction of prolongod
nociceptivo stimulation (NS) did not oliminato tho incroaso
In tho numbor of orythrocytoa (E) and Hgb in tho poriphoral
blood. Studios of tho nyulogram, upon prolongod NS rovoalod
Incroasod activity of tho bono marrow (incroasod prolifora-
tion of urythroblastowith basophilic and polychromatophilic
Card 1/2
35
US3R / Human and Animal Physiology. Blood Chemistry. T
Abs Joiw Ref Zhur - Molt, No 15, 19$8, No. 69988
cytoplasm, and ratioulocy-tosia). Increases in the number
of E arA in the Hgb level were related to increased
erythropoieuia under the influence of the prolonged W .
The spleen appeared to play no essential role an a depot
of erythrocytes. -- M. B. Golldberg
Card 2/2
KRAVTSOV, V.V. (Moskva)
Method for solving the diffraction problem (two-dimensional
case). Zhur. vych. mat. i mat. fiz. 4 no.2054-358 Mr-Ap 164.
(MIRA 17:7)
STRIZffAK. V.I. [Stryzhak, V.I.]; YAU.111K. A.P. [IAremik, O.P.1; KRAVTSOV, V.V.
-, - --m- ",4r--,,~
Inelastic collision cross sections of 14 Mev neutrons colliding
with atomic nuclei.Ein Ukrainian with summary in English]. Ukr. fiz.
zhur. 3 no.2:190-195 Mr-Ap 158. (MIRA 11:6)
l.Institut fisiki AN TJRSR.
(Neutrons) (Iluclei,Atomic) (Collisions (Nuclear physics))
'., I ~, " 3
S/188/62/000/006/003/016
B187/B102
AUTHOR: Kraytgov, V. V.-
TITLE: Inte6ral equations for the harmonics on the surface of a bodY
of revolution
PERIODICAL: Moscow. Universitet. Vestnik. Seriya III. Fizika,
astronomiya, no. 6, 1962, 11-19
TEXT: 7#hen any -save u0(:.!) hits the cloned surface S of a body of revolution
on which r - f(z), a ~z!~b, the total field wil 1 be u(m) - U 0(M) + V(M).
v(M) is determined by the boundary value problem Av +v 2v = 0, v
Is - U01s,
av
3R + i-tv = O(1/R) for R P co . Other boundary conditions can be treated
in a similar way. The function v(M) is detrmined by its values on S and by
its derivatives in the directions of the normal to the*surface by means of
Greenis formula. The author eeneralizes a method established by
N. N. Govorun (DAN SSSR, 126, no. 1, ijg, 1959; 1'z2, no. 1, 91, 1960) to
obtain a first-kind Fredholai inteL~ral equation for the determiniition of
Card 1/3
s/1ba/62/GGG/GC6/OO3'/016
Integral equations for the ... B187/'Bl()2
v(M). This equation has a k xnel i-,ithout an.,Y sinj,,ularities:
b 241
II _ do, a -
PA (kA"') -- -U, (2) -in- WA (kA""))) /V
I an f
a
X f (z) I/ -F+ -/u (z) dz = 0. V
2 2, - F -
where A - (z f r a4~ < b . Thc; , are Hankel functions, n is the
unit vector dii-ected ulon6 the surfac-~- normal to the outsiue, v (z) are the
harmonics of v(M) upon S. Thus,
00 = (z) e1 vP
V (M) Is u. (z) el an an
;ohen this steady case is to depend cn time t is formally subjected to a
Fourier transformation with the a-(1 of the Kirchhoff-Sobolev formulh
resultine in an inteCro-functional equation. An electromaenetic wave is
deult with also. This procedure is a translation of tht. results found for
the scalar case into a vectorial analog. The field'outside S is given in
Card 213
S1188162100010005/0031016
Integral equations for tne... B187/13102
terms of the field streneths r, and H ui.on 3 according to the Stratton-Chlu
formulao. It is i-ointua out that the equations always have solutions when
the 1-boundary conditions of the differential equations can be fulfilled. The
uniqueness of the oolutions obtained is demonstrated.
A.';SOCIATlON: Kafedra matematiki (Department of Mathematics)
6' .1
SUBMITTED: March 9, 11
Card
Integral equations for current harmonics on the surface of soldis
of revolution. Yest.Moskoune Ser.3:Fiz.,astrom. 17 no.6:3.1-19 X-D
162. (MIRA 15112)
1. Kafedra matematiki Moskorvakop gosudarstvennogo universiteta.
(Electric currents) (Integral equations)
YJUVITSOV.* V.V.
fliglk-frequency auyvipLotic Lei;,rivior of ~j rionsteady-s Late dif-
fraction problem (region of liwht). Zhur. vych, mut. --' mat.
fiz. 3 no.5:955-957 S-0 163. 0-11!~A 16:1-1)
Acu-Essio;i iia: AP4024568 S/0208/64/004/002/0354/0358
MTHOP: Kravbsov, V. V. (Moscow)
TITLE: Method for solving the diffraction problem
SOURCE: Zhurnal vy*chislitelinoy matematiki i matematicheskoy fiziki, V. 4, no. 2,
1964, 354-358
TOPIC TAGS: diffraction, boundary value problem, nonorthogonal series., exterior
boundary value problem
ABSTRACTI The diffraction problem for two-dimensional regions is considered,
The solution of this problem is wel.1 known only for cases where the region permits
the separation of variables in the Helmholtz equation. A more general method is
described in this paper. A simply connected region bounded by a closed Lyapunov
curve is considered. Boundary conditions of the 1, 11, or III kind are imposed.
Green's formula reduces the problem to the solution of a Rrodholm integral equation
of the first kind. The existence of solutions follows from theorems for wcterior
boundary value problems. A uniqueness proof for these solutions is given, arl a
metliod for constructing series solutions for the integral equations is presented.
Card 1/2
ACCESSION 11R: AP402h568
This method is compared with that of nonorthogonal series (L. V. Kantorovich,
V. I. Kry*lov. Prib3-izhenrW*ye methody* vy*sshego analiza. M.,, Gostekhizdat., 1952).
A second series solution is eiven in the case where the field frequency is large.
The results may be generalized to three-dimensional scalar and electromagnetic
problems and to multiply cormeoted regions. "The author thanks A. G. Sveshnikav
for his direction and A. N. Tikhonov for his valuable advice." Orig. art. has:
34 equations.
ASSOCIATION: none
SUBMITTED: 24sep62 DATE ACQt 16kpr64 ENCLt 00
SUB COM PH NO REF SM 004 OTHERt 001
Card 2/2
K v i W
Ef f ect of pro I ongetj r I a c I cepti-ic- ( .i, 1 5 L ~.C.L- ing
or exw~rlmental Bkin wounds. NA. eksp. hicl 57
64. A
I L"ek" I-!, nor-ITIS noy ic I ot-
ko,~c i I I.-, tit.11 tit (nauc hn yy riikovo,i I toll
Predstavh-.na cleyst-vitelln,
ym Atll
v(!I-ov~hrlikovyi-I.
KROTSUV Y YUTERGNIMLER. S.I.
- --- --- Li --a-M-11
Some data on diamonds found in the form of polycrystalline
aggregates. Zap. Yee&. min. ob-va 89 no.4-.464-4-66 160.
(MIRIL 13:11)
1. TSantrallnaya ekepeditmiya Vsesoyuznogo nauchno-
issladovatellskogo goologichaskogo instituta, laningrad.
(Diamonds)
KUKHAR-711KO, A.A.; KRAVTSOV, YA.M.
Geochemistry of zirconium and beryllium in ultrab-isic alkaline
rocks. Dokl.AH SSSR 134 no.4:931-934 o 6o. (KMA 13:9)
1. Leningradskly goeudarstvannyy universitet Im. A.A.Zhdanova.
ProdBtavlemo akad. A.A.Polkanovttm.
(Zirconium)
(Beryllium)
(Kola Peninsula--Rocks, Igneous)
IZOKHp 1,,,P.-, KRAVTSOV, Ya.M.
..... .----
Significance of spoctrum analysis of biotitos for correlating
granites and determining their metal potential in the Far
East. Trudy VSEGEI 73:89-98 162. (MIRA 15:9)
(Soviet Far Eaot-Granite-Spectra)
(Soviet Far Ea.at-Biotites-Spectra)
KRAVTSOV, Ya.V.; LIMUR, I.F.; PASIICH:,,;ITKO, N.Ye.
Use of new heating units in modern construction. Vod. i san.
tekh. no.8:28-31 Ag '61. (MIRk 14:9)
(Radiators)
Q rj V,/' 1 :z - c: 0 -7
2 8 5 ) 12
AUTIJORS,, Kravtsov, Ye.A.-and Shchurov, A.F.
TITLE- 1,1eaourinL!, Deformations by Portable indicators (Iz-
mereniye deformatsiy perenopnymi indikatorarli)
PERIODICAL: Izi:,,eritelluaya tekhnika, 11)59, Nr 4, pp 9-10 (USSR)
AB6TRACT: Usin6 stationary in-truments for measurin.- structur-
al deformations of conqtruction e2ements is not al-
viays possible or advantageDus. At ',--he GorIkovskiy
inzhenerno-stroitellnyy inst.-'Itut (Gorlkiy Construc-
tion En6ineeri.rigl Tn:ititute), the lauthorr designed
portable indicators for nenrurin,,, tile ~Iefcrmaticn
of beans, concrete structure., etc. They consist of
modified dial indlcators as shown in fiL,,ures 1 and
1). - -t,~curr - Justrivue
Ir Tiv. , _Lcy of thept. nts is equal to
f,110 VtCOUrLIr'IO5- Cf t1IC' di.'11 indic;,,tors, used. There
are 2 diagrams.
Card 1/1
KRAVCHUK, YA.T.
Council of Construction and Architecture. Izv.ASiA no.4:153-155
'59. 04IRA 13:6)
1. Uchemy7 askratarl Soveta Akademli stroitel'stva I arkhitektury
SSSR.
(Zhakovskly-City planning)
KRAVTSOV, YE. P.
USSB/Mining Methods Deo 48
Coal
"Preliminary Reealts of the Draining of the
Poplevino Coal Fields," Ta. P. Kravtsor, D. M.
Khokh107kinj, Mintopetroy, S. A. Kr1rorog, Soyuz-
shakhtoosushentye, 4 pp
'Ugol'" No 12 (273)
Coat fjolil to located In SkopInak Re4on, TVAteko
ObIAW . %toor tho OktyttbvOULwI Tr%Aet and has access
to Monoov-Donbass railroad. Describes the enter-
prise, and past production. Map shows disposItIon
of tunnels and res-ilts of water pumping frOM the
PA 20/49T85
shafts.
20/49T85
rt AIITS , YA. E. PErUYTIOV, 11. 11.
Yloscavi Basin - Conl-mining Machinpry
Mechanization of preparatory tunneling work in the Foscow coal basL-1.
Mlekh. trud. rab. 7 no. 2, 1953
9. Monthl I.Iqt or Russian Accessions, Library of Cangi-f~st;, May - 1953, Uncl.
KUVTSOV,Ye.P.. Inihener, laureat Stalinskoy premii
Precast structures made of reinforced concrete tunnel-tubing used
as vertical mine shafte. Bet.ithel.-bet no.5:177-183 Ag '55.
(MLRA 8:9)
(Shaft oinking)
(Precast concrete construction)
KRAVTSOV, Ye. P., inzh.
Reinforced concrete STK tubingn for olieft lining. Krepl. gor. r1r.
ugoll. shakht no. 1:23-51 157. (MIRA 11:7)
(Shaft sinking)
(Reinforcod concrete construction)
XGPZLTANSKIY, G.D., kluAidat tekhnicaheskikh nauk; KRMSOLJO.r.. inzhener.
11
Using extra-stiff concrete mixtures for making reinforced concrete
products. Bet. i zhel.-bet. no.3:91-97 Nr 157. (K6Rk 10:4)
(Concrete)
ICRAVTSOV, Ye.P., inzhener.
STK reinforced concrete tubbinge for the sunport of mine shafts.
Shakht.etroi. no.6.-4-9 is '57. (MUU 10:7)
(Shaft sinking) (Reinforced concrete constructions)