SCIENTIFIC ABSTRACT YU.I. DERGUNOV -

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• Collection: Scientific Abstracts
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• Document Creation Date: January 3, 2017
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• Sequence Number: 12
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

Some Cases of Reactions for the Redistribution of 864ft 8/020160/132/02/33/067
Radicals in Organic Lead, Tin, and Silicon Compounds B011713002
(C2H5)4Sn M, (C2 H'.)3SnR (II), (C2 H5)2 SnR 2 (1")' C2H5 SnR 3 CIV), and SnR 4 M.
However, there will be no equilibrium in the developing mixture since (III),
(IV), and (V) are no "symmetrical" compounds. Theoretically it i3 therefore
probable that (III) - (V) will enter into side reactions during the
redistribution of radicals, and besides tetraethyl tin will develop a series of
substances with chains of metal atoms still longer and more ramified. Due to the
decomposition of molecules, there will be no equilibrium in the mixture (.0 - M.-
In agreement with the above theory, the authors found out that 2-3 weight1%
of aluminum chloride or other catalysts of the radical redistribution, rapidly
reduce the stability of hexaethyl diplumbane and hexaethyl distannane, also
altering its decomposition mechanism (equations (B) and (V)). It was
spectroscopically proven however ' that the decomposition of these two compounds
takes place according to equation (B) developing an intermediate product of
diethyl lead, and diethyl tin respectively. During the disproportionation of
hexaethyl distannane (but not of hexaethyl diplumbane) however, highly-
0- -Influence of
molecular intermediate products develop betweon 70 750 under the L
A1013 This is in agreement with the above-mentioned reaction mechanism. In this
case ;he equilibrium is disturbed by the participation of reaction products in
Card 2/3

Some Cases of Reactions for the Redintribution of S/020/60/132/02/33/067
Radicals in Organic Lead, Tin, and Silicon Compounds Boii/B002
side processes. This causes the formation of unstable products. The authors
give further examples of publications on their statement (Refs. 3-8). The
reaction between isopropylahloride and tetraethyl lead was not successful. Table 1'i
gives a summary of the authors' experiments. There are 1 table and 8 refer-
ences, 2 of which are Soviet.
kSSOCIkTIOWt Nauchno-iseledovatellskiy institut khitaii pri Gorikovskom gosudarst-
vennom universitete im. X. I. Lobachevokogo (ELcientifia Research
Institute of ChemistEy of the GorIkiy 'State University imeni N. I.
Lobachevskiv)
SUBVITTEDt February 15, 1960
Card 3/3

RIZUVAYEV, G..k.,- DERGUNOV., Yu.I..-- VYAZARK:[N,, N.S.
Reaction of totreethyllead with Ulogenated hy&oearbons. Zhur.
ch, khim. 31 no.3:998-IC03 Mr 161. (MMA 24:3)
1. Nauchno-issledovatellskiy institut khimii pri Gortkovskom
goBudarstvennom universitete imeni N. 1. Lobachevskago.
(Lead) (Hydrocarbons)

RAZUZAYEV, G.A.; VYAZANKIN, N.Sq,
--Plq~GUNOV, YusIa; VYSHIMK.[Y, N.N.
Thermal decomposition of tetraethylleadp hexaethylpliLmbane, and
their analogs. Part 5: Reactions of decomposition imd disproportiona-
tion of hexaethyIdista=ame* Zhur.ob.khim. 3-1 no.5:~712-1717 Fq
1-61. (MIRA 14:5)
1. Nauchno-issledovatel'skiy institut khW.i pri Gorlkovskom
gosuclarstvennom univefaite" imeni P.I.Lobachevskogo.
(Tin organic-copp:)unds)

RAZUVAYEV, G.A.; VYAZANKIN, H.S.; DIYACHKOVSKAYA, O.S.; IGSELEVA, I.G.;
_P~G~UKOVL Yu.I.
Certain reactions of organic compow3ds of elements of the gr u
1V catalyzed by aluminum chloride. Zhur.ob.khim. 31 no.12:
D 161. (KM 15t2)
1. Nauchno-issledovat-oliskiy inotitut khImii pri Gorlkovskom
gosudarstvennom univerokbete iment Iij.Lobachevskogo.
(Organometallio compounds)

S/020/62/145/1)02/012/018
B106/B101
AUTHORS: Razuvayev, q. A., Corresponding Member AS USSR,.
Dergunov, Yu. I., and Vyazankin, N. S.
TITLE'.- Homolytio reactions of organotin compounds with alkyl
halides initiated by peroxides
?ERIODICAL: Akademiya nauk SSSR. Doklady, v. 1,15, no. 2, 1962, 347-350
TEXT: The reaction of small amounts of benzoyl peroxide with binary
systems from an organotin compound (tetraethy' L tin, dimethyl-diethyl tin,
hexaethy~ distannane, triethyl tin chloride) and an alkyl hal *ide (carbon
te'llracbloride, n-propyl bromide) in the absence of.oxygen, 11as studied
to prove that peroxides may initiate the reaotion of organo"din compounds
with alkyl halides. In all cases, radical chain reaction set in at
75-800C initiated by decomposition of benzoyl peroxide. The reaction of
peroxide with the system tetraethyl tin - C01 4P iihich mainlY yields
triethyl'tin chloride, ethylene, and ohloroform, was studied in detail:
R' + (C 2.H5)4 Sn --+ RH + (C2H5)3 SnO2H4(it - C 6 H5coo, C6H5) (1);
Card 1/4

S/020 62/145/002/012/018
Homolytic readtions of organotin ... B106%101
(C2H 5)3 Snb 2H4 --s'. (C2H5)3Sn* + C2H4, (2); (C2H5)3 Sn' + CCI4 -9. ( C2 H5)3 Sncl
+ Ccl, (3); CCl* + (C H ) Sn --ii. CHC1 + (c H (4);
3 3 2 5 4 3 2 5)3Sn62H4 etc.
or: Ccli + (C2115 )4Sn --* C113CH2Ccl3 +(C2 H5 )3.9n* M- Reaction (5)
is of minor importance as the G 2~5PC13 yield is small. The ieaction
mixture also contains ethane and traces of butane formed by disproportiona-
tion and dimerization of ethyl radicals whioh result from the reaction
C 6H5COO* + (C 2H5) 4Sn (C 2H5)3 SnOCOC6H 5 + C2H; (6).* Reactions (6) >00,
and (1) take place together. He):aohloro ethane traces form by recombination,
of Ccl radicals (chain rupture). Triethyl tin chloride may- be converted
in the same way as initial tetraothyl tin since diethyl tin dichloride
mas also isolated from the'reaction mixture. This was 'confirmed by the'
reaction between benzoyl peroxido and the eyatem (C 2H 5)3SnCl - CC'4*
Peroxide caused no chain reaction with the tetramethyl tin CCI mixture.
4
The reaction of hexaethyl distannane with CCI initia.ted by peroxide was
4
Card 2/4

1 5/02 YB 62/145/002/012/016
Homolytic reactions of organotin B106 101
complicated and yielded great amounts of chloroform and ethylene. The
ethyl Croups of hexaethyl distannane are affected by the trichloro-.,
-~etlhyi radicals and triethyl tin chloride and diethyl tin dicbloride are
form .ed. The tin-tin bond in (C 2H 5)6 Sn 2is ruptured; it has still to be
found out whether this process is homolytic or not. React ions - (1) 1
(2), and (06) take place when'ben--oyl peroxide reacts with the) system
tetraethyl tin - n-propyl bromide. Reaction (3) is completely analogous
to then (with 0 3H7Br instead of eel 4). The resulting propyl and ethyl
radicals of Eq. (6) disproportionate according to the chain :reaction
-1
R, + (C if ) Sn RH+(CH) Sn' +ell ell (51), R* .+ CH I.J1 CH Br
2 2- 2 3 2 2
2 5 4
+ CH ~ He 'I B r (10) ; CH ~IICH Br '--+ CH -ell= CH2+ Br* (11) (R - C H
, 3 2 3 2 3 2 5$
3q7)' Studies of the decomposition of pero-xido compounds in propyl
bromile to confirm the courses of reactions (10) and (11) are described
in a sep,~rate paper. There is I table.
Card 3/4

S/020/62/145/C-C)2/012/018
Hom,olytic reactions of orgenotin ... M61B101
.~'SSOCIA`TION: Nauchno-issledovatellskiy institut khimii pri Gor1kovskom
gosudarstvennom universitete im. N. I. Lobachevskogo
(Sciehtific Researoh Institute of Chemistry at the Gor'1dy
State University imerd N. I. Lobaohevskiy)
SUBLITTED: April 17, 1962
V/
Card 4/14

S/061/62/000/022/02-7/088
B144/B101
AUTHORS: Vyazankin, N. S., Razuvayevt G4, A., Dergunov, Yu. 1.
TITLE: Effect of metallic, lead and hexaethyldiplumbane on the
decomposition of stabilized te-traethyl lead
PERIODICAL: Referativnyy zhurnal. Xhimiya, no. 22, 196,!, 228., abstracl
22Zh244 (Tr. po khimii i khiia..tekhnol. IG or'kiy], no. 31
1961, 652-655)
TEXT: A mixture of tetraethyl lead (III) and highly dispe:-sed Pb was
obtained from (C2H 03 PbPb(C2H03 (1) under tbe-effect of 2-3% by weight
of C2H4Br (II) (- 2&C, 24 hra). Decanted.I31', with an admixture of II
(5-10A, by weight of the initial amount) in another case a nonseparatea
mixture of II, III and Pb, was kePt 4 hrs at 1350C, all coatact between
.the reaction mixture and the air moisture being prevented. It has been
found that II prevents the thervial decomposition of III, but that Pb
weakens*this effect considerably. For this -reason additions of I to
a mixture of III and 11 (94 by weight of I ani 11: 3.1 -8.6; 1 .8-2.1 ,
Card 1/2

S/081/62/000,/022/027/088
Effect of metallic lead and ... B144/B101
respectively) caused III io decompose (1350CY. The decompoaition of III
under the action of Pb is not accompanied by an accumulatioa of I as
int6rmediate. bstracter's note: Complete translation -1
Card 2/2

RAZUVAYEV, G.A.; DERGUNOV. Yu.I.LWAZARKIN, U.S.
Reaction of bwmothyldl.otwu=e with halo derivatives. Mursobs-
khim, 32 no*8:2515-252C) Ag 162o (KIRA 15;9)
(Tin organic ccuipcunds) (Ralides)

7-1
I*,.,. Vfl

U14AIIOVP G. - KUPWATOVA j, Ye.; KWVAYEVA., S.;- DFa.',UIIOVA,, A.
New standards for hogs and pork meat* Masoind. SSSR 33 no.3-.:18-20 ,
,~ J62* (MIR-k 15:7)
1. Voesoymnyy'nauchno-isoledovateltakLy institut myasnoy
promyshlemiosti.
(Pork industry--Standardi)

137-1558-3-4904
Translation from: Referativnyy zhurnal, Metallur8iya, 1958, Nr 3, p 64 (USSR)
AUTHOR: 1~ergunova, A. A.
TITLE: Zinc Plants Production Indices for 1956 (Tekhniko-ekonomicheskiye
pokazateli raboty tsinkovylth zavodov za 1.956 8. )
PERIODICAL: Byul. tsvetn. metallurgii, 1957, Nr 13, pp 29-38
_;.16-10fteented - dealing with the composition of Zn
A13STRACT: WOXWt~ft
concentrates (ZC) at concentration plants (CP) of the USSR, the
specific gravity of ZC's from various CP's employed in the charge
of processing plants, the extraction of';,nCd and Pb, as well as
the production costs of Zn, and production indices of pyro- and
hydrornetallurgical reduction processing of ZC at various plants.
It is noted that the 1956 conversion to the method of roasting ZC
in a boiling layer increased the content of soluble Zn in the sinter
by 2-3 percent ("Elektrotsink" and "Ukrtsink" plants), while the
SO2 c..ontent in ases increased up to 63 percent ("Elektrotsink"
plant) . The le)s't expensive Zn is manufactured at the
"Elektrotsink" plant, while the most expensive Zn. is produced
at the Belovsk plant.
1- - B. Z.

GROMMI 9, Israil Markovich; DUGUNOTA,-A44., red.; RIUM, telchn. red.
[Coq?rehensive utilization of metal orc in nonferrous metal industr7l
Umplekenoe Ispollsovarle inAuogo syrlis T tevetnoi metallurgii.
Moskm, Goo, nau6no Aekhn, izd-vo lit-ry po chernoi i tsvetnoi
metallurgii, 1958. 60 p. (MIRA 11:7)
(Nonferrous metal industries)

TTURYAKOV, A.F.; KUKHRAHOVA, G.H.; TARUBAROV, I.G.; ZABELTSHI[NSKIT, I.M.;
DERGYUNOVAq A.A.; KLETMARMAN, D.A.
Results of admiIiistrative and economic activity in nonferrous metal
industries in 1957;f rom annual reports. Biul. TSIIN tBvet. met.
no. 7:30-36 '58. (MIRA 11:7)
(Nonferrous metal industries)

KONAREVSKIT, A.A.. starshiy- nauchnyy sotrudnik; --DPJQtTNOVA,-. A.A., starshiy
nauchnyy sotrudoik; VASYAGINA, O.A.., tekhnik
.Development of modern standards of electric power COUBUMP'.19a
for the production of 9&twages. Trudy VHIIMP no.9.152-157 '59.
- (MIRA 13:8)
(Sausages)

LAIROVA.L., kandidat takhnicheakikh muk; DARMIOTA.A., uladshiy nauchtqy
sotrudnilc; POLITATIV.T.; ZUBKOV,I. N.-Om
Diagrams for naltik hams by injection with a hollow needle. Kia.B.
ind.SSSH 26 no.4:16-17 '55. (KY.JUL 8:10.,)
l.Vs4oyu%r4ry nauchno-issledovatel'skii institut vyasnoy promyshlen-
nosti (for Derganov and Pbletayev). 2. Master 1-go klasea Moskovskoio
wyasokombluata, (for ZtLbkov)
(Pork .indtistry) (Meat-Preservation)

mmGUN A.A.-- HIRONOV. A.. professor. retsenzent; YMIAKOVA. Yo.. inzhener.
it; KLUIN, Kh., kandidat tekhnieheskWi nauir, speteredaktor;
IVANOVA, N.M., radaktor; YAROV,B.H., takhniche6kiy reidairtor
[Saiisage casing production) Kishechnoe proizvoistvo. Moskva.
Pishchepromizdat, 1956. 103 p. (HLRA 10;2)
(Sausage casings)

ANFINOlf, Apolion llikolayevich, kand.teklin.nauk; LAVROVA, Lidiya
Pavlovna, kand.tekhn.nauk; MAIDIRBERGIM, AlaksE-Or Abramo-
vich, prof.; MIRKIN, Tefim Tullyevich, Imnd.toklm.nouke
Prinimli uchnstiya- SMOLISKIT, N.T., inzh.; MMITMOVA,-A.A.,
inzh.. NOVOSHLOVAI, L.V., rod.; TARASOVA, -t()'i,-hn. red.
(Techgolo&v. of met and ment -products] Tel-chnologiis miasa i
mia%o~roduktov. Motikvn, Flshche-oromizdat, 1959. 593 P.
(MIRA 1):I)
(Mont induatry)

starshiy iaauchnyr sotrudnik;
BARMSH, A.I., kand.tekhn.nauk; DERGLINOy
DYMP, V.K., kand.bilogichoskikh nauk; DUBROMA, I.I., mladshiv
nauchny7 sot-rudnik; MUDOLTUBOVA, G.B.; POLEUM, T.N.; V rabote
prinimali uchastive; 4VROVA, L.P.;. PWH&RISKAYA, L.S.; ZUYITA, L.D.;
KALITA, L.A.; NESLTUZOV, A.F.; GOLIDMAN, Ye.I.; MAKUWA, M.F.;
STIWANOV, A.F.
Use of blood in sausage manufacturing and canning. Tfudy VNI DCP
no.9:63-74 159, (MrRA 13:8)
1. Vsesoymnyy nauchnoy~iasledovateltskiy institut ityasnoy lwozW-
shlennosti (for Lavroya, Pozhariskaya, Zuyeva, Kalita, Noslyuzov).
2. Spetsialinty Moskovskogo myao-okombinata (for Golldman, Makeyeva,
Stefanov).
(Blood as food or medicine) (Sausages)
(Canning and preserving)

DERGUNOVA, A.A.; UNANOV, G.S.; KURBATOVA, Ye.A.; KARAVAYEVA, S.G.
Standards for pork. Standartizatsiia 26 no.2:43-44 F '62.
(MIRA 15:2)
(Pork--Standards)

VOLOVINSKA~ii O"Int! ",41-lin. nauk; R0B.4SlIKll'A 4 -V 1,
sotri dni k, starshiy nauchny-y sotrudrilk; SHCH:- r;OUNI,
inladshly nauchn,,rj sotnidnik; ICROLOVA , V.K. tokhnik; PAVIMV
~).I). I I p
D.V. p kand. tekhn. nauk; 14M.R02OVI. , S. 1. , kand. khim. nauk
U se of ascorbic ac- d, sodium ascorbinate and glutaminate in the
production of sausages. Trudy VNIIIC no.11:76-86 16-1.
041,11j, 19:2)
1. Vsesoyiiznvy nauchno-issledovatel I ski-.,,, institut myasnoy prom-y-
shlennosti (for Volovinskaya, Ruba-lkina, Dergunova, Shchegoleva,
14erkulova). 2. Moskovskiy tekhnologichesk-Ily institut myasnoy i
molochnoy promyshlonnoqti (for Pavlov, Matrozova).

DF,RGUI,QVA, Aleksandra Aleksondrovna; PELEYEV, A.I., prof.,
retsenzent; MANOIBEIGER, A.A., prof. , spets. red.
KOPBUT., L.V... red.
[Processing of guts] Obrabotka kishok. Moskva, Fishel -le-
vaia pron7shlennost', 1965. 185 P. (VIRA 18:10)

BOLISHAKOV, K.A.; DIRGUMVA. GM,
Solubility In the ternary 9yetem HaND3- CoMI- H20 tit 25
and 500. Zhur.noorg.khim. 5 no.1:209-213 Ja '160.
AM 13:5 )
(Sodlum nitrate) (Cesium nitrate)
.4k 'S'.

LAVROV, V.V.; ARIaUNGIVSKAYA-LEVINA, M.S.; FRDOROV, D.N.; IOSSET, G.Ya.;
SOShYAKOV, N.G.; BMUNGER, Yu.V.; KOZACHINSKIY, R.M.; YELNTSKAYA,
0.1.; GOSHKINA. A.I.; MIRI.ASHEVSKAYA, A.V.; ZYKOf, A.A.; L83BIEV,
M.F.; IZRGUNOVA, K.S.; RYTSK, Z.A.; FMFKINA. D.Z.; TSIVIN. S.S.
In memory of A.M.Zabludovskii. Khirurgiia no.12:74-75 D '53.
(MIRA 7:1)
(Zabludovskii, Anton Martynovich, IBED-1953)

28875
1~,QLI to S/180/61./000/004/013/020
E071/E.180
AUTHORS; Meyerson,. G.A9, DerXunoYa,_Y1_S_-,, Rpel'baun, V.A.,
and Gurevich, N.A-. (Moscow)
TITLEt An investigation of none hard alloys of the
Boron-Silicon-C&rbon system
PERIODICALt Ak&domiya nauk SSSR. Izvostiya. Otdeleniye
tekhn.tchaskiki nauk. Metallurgiya i toplivo.
no. 4. 1961, 90-94
TEXTt The above system has, as yet, been insufficiently
studied. For this reason the-authors investigated three groups of
alloys of the followingt-ypens' alloys close to the zone of solid
olutions based on SLC, alloys based on B4C, and alloys of the
:
entral part-of the ternary B-Si-C system. In the latter* the
points were choseniso as~to overlap the zones,in which previous
investigators assumed the possibility of the existence of a
ternary compound of the type BXS:i C Specimens of the alloys were
obtained by hot pressing powder mIxtu'res of the elements at
2000-2100 OC (no details of the preparation are given). Spectral
Card 1/*

28875
An investigation of some hard alloys.... s/i8o/61/000/004/013/020
E071/EI80
analysis of the specimens indicated that the sum of admixturon
(F*, Mg, Ali Ca) did not exceed 0.1%. porosity did not exceed
2-5%, and density was uniform throughout the whole volume of the
specimens. A prolonged- high temperature annealing (50-1000 below
pressing temperature) brought the alloys to the equilibrium state
with an increase in the grain size, but did not cause any changes
in the chemical composition, or any increase in the porosity._
The specimens were submitted to metallographic and X-ray analysis
and microhardness measure 'ments. The following conclusions are
drawn: 1) A phase exists-iff-the B-Si-C system with a melting
temperature above 2100 OC and-* very high hardness (about 7000
kg/mm2 and above), not iefiabi3r -exceeding the microhardnexis of boron
carbide (5000 kg/MM2). -In specimens produced and treated in
the described way, uetall:~,*jraphit and X-ray analysis did not show
the presence of any now ~'pih;kieb. *iw noticeable quantities, only solid
olutIons based on BikC,'SiC."ain~d Si (the latter at an insufficient
:
arbon content). The I-ray--ainxlyndsi- indicated that the isolubility
of silicon (or siliconcarbIde.) is small In'boron carbide (loss than
2% if calculated on Si)~, but metallographic investigation suggested
Card 2/4-

28875
An investigation of some -hard- alloys. snAo/61/000/004/013/020
the pro-wence- of &n.'apparently single-phase up to 10-12% silicon.
This can- be explained- by the separr*~-ivn of substicroscopically
disperwe-d-SIC particlers on cooling. The microhardness -of such
grains,--b-ased-on B4c,*ia 7000 kg/UE2 and, in wane cases reaches
8000 kg/~2. 3) &rain* cot solid solutions based on SJ.C have a
micri6ha-r-duess of 5000C-5200 kg/~2 instead of the 3500 of Pure-SiC.
40 The ba-rd-ness of B-~Si-C alloys changed little up to & temperature
of 700-800 OC. For alloys based on 84C, the hardness of --
6000-7000-kg/OU2 at-200 dropped to 3000-kg/MM2 a-t 600_~?00 *C end,
for alloys -bawed on SiC, from 4000-5000 kg/=m2-tco 1500 ks/mak
During the-se4keandrementso the formation of cracks was observed
around- -the indentation, in Ak. numbar. of. caseq,. iAckicating. tba!t _ the
actual -h-ar-dnexa values could be higher. - the work was carried - out
in the- Kafedra redkiW netallov i poroshkovoy metallur-gii
(Department of Rare Metals ... &-nd*Powder Metallurgy) of tht& Institut
tavotnykh metallov ineul N.I. Kalinin& (limatitwte of Nom-ferrous
Metals iment M.I. Kalinin), in cooperation with the Fiziko-1himi-
cheskiy inatitut imeni L.Y-^. Karpava (Phystico-Chemical Institute
imeni L.Ya. Karpov
Card 3/4

28875
S/,18ci/61/000/004:/013/020
An investigation of some-hard alloys ..a Eo,7l/,El8o
Therer are I figure, I- table and 4 references: 3 Soylet-bloc and
1 English.. The English language reference iremids as follawai
Ref.l: F. Ton. The quest for hard materials. Industrial and
Engineering Chemistry. Industrial edition, 1938, 30,
232-242.
SUBMITTED: November 210 196o
Card 4/4

L 100V_6Y.
ACCESSION NR:, AP3001421. s/Ov76/63/0()o/oo6/oo58/OO63
AUTHOR: De
Tseytlin, Z.
S.; lnit~.Xu.
TI'Mx: Investli tion of,
~a _,~i~~rei'a:Lloys of u zrC-TaC systena
\k' I ILA
SOURCE: TsvetWe metal-ly -:no, 6, c163, 58-63 1 1 . 4,1
TOPIC TAG$. lattice parametevi, solubility ar components,
room teap!ratura, microhaxdb0s) hardness at Idgh temperatures, terVenLture
coefficient of Imodness, qj)jplicatLon,, specific density
n
ABSTRA'._. Eleve ZrC-TaC gAloysj, rEmging from pure ZrC to pure TaC, vere
inv~estigwtedll 11ixtures ofA?0,1,3f-pvxe, Ta.. 96.($-pure Zr, andC were compacted,
sintered in hydrogen -at 114'.0-2400c, crushed, imd hot coirpactA~d in gra
phite the s
at 2600--2700C tmder a preosure.of 230 kg/cm sup 2. Alloys v~re then annealed
at,,2300C for 2 hr. X-req eiffraction patterns showed that, the lattice! parameter
Ila increased linearly frottl~4.W Angstrom for pure ZrC to 4.1580 Angstrom for pur
TaC indicating.the bnlimit0d solid solubility,of the components Microscopic
examination also revealed qay~orv! phase in all. alloys ntudied. Specific density
increased continuously with.increasing TaC content. Microhardness at ;oom
temperature decreased contbiuousl;r from apprcodLmately 2170 kg/mm sup ~'fo**r alloys
with approximately 10~ TaC to approximately i4oo kg/mm, sup 2 "ror alloys 'with 90%
Card 1/2

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SUB CODE:

i k_jg937-66 FWP(k)/E',NT(m)jtE*.Wi)(O)/EiqP(t)/ETI I,711(c) AT/WH/J' JG/NB/JT
i: [-4tC-14,-A1-i60l9932 SOURCE CODE: UR/0l22/66/ooo/oo6,/oo63/oo65
AUTHOR: Derg S., (Candidate of technical scien-ies); Komissa:mv G. K.
'r-, Yermakova, M-- (Engineer); IluznetBov, L. I. (Engfrne-e-r-)
(Engineer
j'A. A. (Candidate of technical sciences)
ORG: none
TITLE: Metal ceramic-alloy for work at elevated temperatures J
SOURCE: Vestnik mashinostroyeniya, no. 6, 1966, 63-65
TOPIC TAGS: metal ceramic material, sintered alloy, high temperature cermet material
titanium carbide containing alloy, boron carbide containing all-V, silicon carbide
containing alloy, alloy oxidation, alloy tbermul fatigue
ABSTRACT: Se*al ternary alloys containing 4o.8-60% TiC, 20-39.2% B4C, and 20% Si(
were compacted\at 2100-2150C under a pressure of 230 kg/cm2, diff "o annealed at
uslo
1900C for 12 hr in an argon atmosphere, cooled at the rate of 10OC/h and tested
for oxidation resistance slid thermal fatigue. Oxidation-resistanceKests made on
alloys oxidized in air at 900C for 20 min, 1.5 hr, 3.5 hr, 10 hr, and 15 hr showed
that the most intensive oxidation, accompanied witli oxide film formation, occurs in
the initial period of the exposure and practically ceases after 5-hr exposure. All
tested alloys can be regarded as oxidation resiatwit since their weight gain in 15-hr
Card I

L 32937-66
ACC NR: Ap6ol9932
tests was only- 4-6 mg/cm2, which is 3.5 times lower than the weight gain of TiC
under identicEU conditions of oxidation. The thennal fatigue resistance was evaluated
from the number of quenches from 1200 and 2000C sustained by alloy specimens before
failure. In "enching from 1200C, the investigated alloys sustained 40 thermal cycle
without failure, which was double the number of thermal cycles sustained by TiC and 7
20 tim)~n as many as~jm allW t 85% SiC + 1504C sustained. Hence, titanium-,
_Icon
boron- and si-Licon carbi e-*b&sed all ys can be rectmmiended as material suitable for
making parts (;~_erati'n_g ALt high temperature under conditions of frequent temperature
changes. Orig. artd has: 4 figures and 2 tables. [ND]
SUB COEE: U/ SUBM DATE: none/ ORIG REF: 002/ OTH REF: oo6/ ATD PREss:,,~-,).Z
Card 2/2

ACC NRs AP7002845 SOURCE CODE: UR/O136166/ooo/012/oo84/oo86
AUTHOR:_ Dergunova, V. S.; Timonin, 11. L.; Kuzin, A. N.; Tseytlin, V. Z.
-------------
ORG: none
TITLE: Properties of tantalum diborJ.de-zirconium diboride alloys containing
chromium
SOURCE: Tsvetnyye metally, no. 12, 1966, 84-86
I TOPIC TAGS: alloy composition, hardriess, porosity, metal melting, chromium
containing alloy, tantalum base- allcy, borideq zirconium base alloy
ABSTRACT:
TaB -ZrB.-Cr alloys containing 20, 25 and 30% Of 2'rB and 3-o-10% Cr
2 It : ~3 1
were obtained from jZrB (79.6% Zr, 19.672 B, 0.01). TaB2 (89.18% Ta,
9.97% B, 0.01% C) and ;9.9%-pure Cr powders by compacting at 2100-2200C
under a pressure of 220 kg/cmz and homogenization at 2000C in an argon
atmosphere. Depending on the composition, the porosity of alloys varied
from 0.5 to 3-42. The alloys consisted mainly of a solid solution of
zirconium boride in tantalum boride with a microhardness of 2900-3300 kg/ 2
MM
and a solid solution of chromium boride in tantalumboride with a microhard-
ness of 1000-1200 kg/MM2. In addition, fine graine of a third phase,
C,,,d 1/3 uDc: 669.:!94/296

ACC NR, fiP!66~845
7011
m 0 1
24610
2300
22001
J 6 7 0 /a
2SOO-
2bDD
2200
20M
15 jo
Card 2/3
Fig. 1. Composition dependence of the
melting point of TaB2-ZrB2-Cr alloys
TaB2:ZrB2 ratio: 1 - 80;20; 2.- 75:25;
3 - 70:30;-Cr additions: 4 3%; 5 - 5%;
6 - 7%; 7 10Z.

ACC NRt AP7002845
probably chromium- borfde, were observed 'along the second phase gr'ain
boundaries. Vie composition dependence of the melting temperature of
TaB2-ZrB2-Cr alloys is shown in Fig. 1. Increasing the chromium content
from 3 to'10% lowered the strength (hardness) of the allo a both at room
.Y ,
and at elevated temperat.ures,.but increased their oxidation resistance.
Or'ig'.-art~. 4as: 5**:~~giur"4--'s*an'd 1 table.
SUB CODE: 11/ SUB14 DATE: none/ ORIG REF: 007/ OTH RE.7-- 005/ ATD PRESS:
5113
Card 3/3

DERGUZOV, V.I.; YAKUBOVICH, V.A.
Exiotence of solutions to linear HamLltonian equations with
unbounded operator coefficients. DoIcl. AN SSSR 151 no.6t1264-1267
Ag 163. (MIRA 16tIO)
1. Predstairleno akademikom V.I.Smirnovym.

DERGUZOV, V.I,,
Sla.b.li-lity. of..-solutions. to- Hamiltonian . equations. -in Hilbert
-spaef)..with-.unbounded.periodic operator.cooffiaients. -Dokl.
AN &")SR-152 no.6t1294_1296.0 063. (MIRA 16til.)
14 Predstavleno akademikom V.I. Smirnovym.

DFRGUZOV, V.I.; FOMIN, V.N. (Leningrad):
"Mathematical analysis of the dynamical! stability of elastic systems
with infinite degress of freedom."
report presented at the 2nd All-Union Congress on Theoretical and Applied
Mechanics, Mosetw, 29 Jan - 5 Feb 64.

ACCMSIOIN NIR: AP4033685
S/0039/64/063/oo4/o591/v;l9
AUTHOR: Derguzov, V. I. (Leningrad)
TITLE: Stability of soluktons of Hamilton equation's mith unbo-anded periodic
operator coefficients
SOURCE: Matematicheskiy sbornik,, v. 63*j, no. W 1%4" 5gi-619
TOKC -LACS: Hamilton equation, periodic coefficient, operator coefficientp
separable Hilbert space, solution stability, periodic operator, finite dimensional
~space
ABSTP_4GT: This is an extension of work by M. 0. Krey, (Osnovny*,ye polozheniya
.2.
.Oeorii Xzon ustoychivosti kanonicheskoy sistemy,* lineyny*kh differentsialiny*kh
uravnen3-y s periodicheskimi koeffitsiyentami. Sloornitc pamyati A. A. Andronova,
Xoslnra, !zd. AN SSSR, 1955),, who investigated the finite -dime ns ional case of the
problem in this paper. The present author obtains sufficient conditions 0for strong
stability of solutions of the H~milton equation
H
Card 113

:ACCESSION NR: AP4033685
,in complete complex separable Hilbert space W. Here J is a bounded (together with
its inverse) anti-Hermitian operator, H(t) is an, unbaund6d symmetric operator cf
;period T which can be represented in the form H(t) a Ho(t) + Hl(t)., whdre HOW is
.a positive definite operator and H (t) is some suboitlinate addition. Certain
restrictions are imposed on the coefficients of equation (1). In view of the
.unboundedness of the operator H(t), the stability conditions are somewhat difforent
,from those of Kreyn. The author indicates_reap~)ns for using the non-standard
'idefinition
C 111 F1 Ho .(0) ~r (0)
(2)
of stability of (1) and shows why it is reasonable. He motivates the fo3_1011i
.An operator Z(t)) satisfying only the relation -wbere F - -:1H0 M.,
J H (0) is a bounded symetric operator and its inverse F-1 is unbounded and is,
0
;called an F-unitary operator. He studies F-uni*tary operators, indicating an exam-
., ple which shows that an F-unitary operator Z(t) may not have a spectrum of zbed i
.type and the collection of its integral powers is unbounded. Determination of the
ttype of points of the spectrum of the operator Z(T) is analogous to the case'-~)f
f inite-di-mensional space W and is given in the paper* It is shown that the, F.-
Cwd

ACCESSION NR: AP4033665
unitary opera vor Z(T) is similar to the bounded operator -lY(T)= If j'.AMj-F_.j.
Here EXis the decomposition of a unit of the oper ator F. Z(T)
does not have a spectrum of mixed type, then the collection of integral powers of
of the operator YZT) is bounded. This assertion is equivalent to tile estim3te
Thus equation (1) is stable if for all of its generalized solutions x(t), the
estimate (2) is satisfied. If also all equations (1) are stable for small chemges
of the operator Hl(t)., then (1) is called strongly stable. The operator Y(T) is
G-unitary, where the symmetric operator G is determined by the operator F. 1J7 Z(T)
does not have a spectrum of mixed type, then neither does Y(T). The reverae
.assertion is not true. The author shows that for strong stability of (1), it is
suf-i'icieat that the operator Y(T) not have a spectrum of mi~wd type. The latter is~
the !-sic result of the paper. Orig. art. has: 77 fol-mulas and 2 figureso
ASSOCIATION: none
SUBMITTED: 2-'*4ar63 DATE ACQ: O7May64 FNCL: 00
-SUB CODE: M 'NO REF SOV: 005 07HER: 003
Card 3 13

-'-, DERGUZOV, V. 1.
Necessary conditions of strong stability of Hamiltonian equations
with unbounded periodic operator coefficients. Vest. LGU 19 no.*19:
18-30 164. (MIRIL 17: 11)

GALDINA, N.M.; DEg,__AtIlj&jD4rJ.,-A.]
Manufacture and service of Okorvishit".. a corandum refractory
material, in Hungary. Stek. i ker. 19 no.614l-44 Je 162.
(MIRA 150)
(Hungary-Rafractory materials)

DERI Erno, tanar; HAVEL, Jeno, tanar; KATONA, Mihaly
Trade-mion po' .itical schools in 1963-64. Munka 14 no.3:
j
22-i-23 Mr 1164,
1. Szakimervezettek Orszagos Tancsa Iskolaja (for Deri and.'Havel).
2. Szaki3zervezetek Orszagos Tanacsa kulturalis osztalya (for
Katona)..

TYFRI, Frno, t&nar
Structural chELnvv!j in the vorking cliff.'iv. Munkri. 15 rm-3:6-9
Mr 165.
2. School Of Li.,e CentrvJ Comcil of Fbangariap- Trade 'Tnfcns,
Budapest,

DERI , ErrA-"
Women and peace. Munk& 14 no. 2: 41-5 F 164.
1. Szaks2ervezetak Orazagos Tanaesa azei-vezesi osztalya
munkatarsa.

BATSANCVv S.S. (Novosibirsk); DERIBAS, A.A. (Novosibirsk)
Effect of an explosion on matter. Structural changim in
noody-mium oxide. Nauchs-tekh. probl. gor, i vzryva,, nool;
103-108 165. 4MU l8sq)

DERIHAS~ A.A.,
Theoretloal and praotical problems C" exploBion; easoion JIIA Novo-
sibirsk& Vent, A.N SSSR '35 no.700-82 JI 165.
(~aRA Igs8)

BATSANOV, S.S.; BLOXHIMA, G.Ye.,,,PgRLBAqX- A. A.
Effect of explosion on a substance. Structural changes of' boron nitride.
Zhur. istrukt. khim. 6 no.2:227-232 Hr-A,-,P 165. (MIRA 180)
1. Inatitut neorganichaskoy, kh-.Lmii Sibirskogo otdeleniya AN SSSR i In-
atitut gidrodinamiki Sibirakogo Welemlya AN SSSR.

45296-66 EWT (m)/T/EW P (t)/!:Tl IJP,(c) JD
:C NR: --------SdURCE CODICt UivdjJ- O-/aI716 53-A 0 63
91
AUTHORSa Deridl Oe PS; Radaut"n. i. -3.*
TITLEa Phan diagram of alloys :~A the system In2!0-.i
AOUYC&t let. sh. KstaLlarjiya, Abe. .1129
W SOUFC&t Sb, Naterisly doU. 1-y Nauchno-tekhne lionferentaii.91shinevske
mplitwfto U41-tao Kishinns 19659 6M9
TOPIC TAGSi Ind'u- tellurium, seleniump indium contaiming alloyp tellurium
containing &Lloyp selenium containing alloys alloy pluvis diagram
ABSTRACTs Methods of microscopic, x-ray, and theromil analysis, asoill as Wasure-
ments of alcrohardnessp were usedto study and con3truct the phase diagram for a
pssudobinax7 section of 1n2Ts3 - %Se3 in the syal,;mm, of In4e-Tve The d%wndence j,
of So solubility in In2T*3 on the temperature was aacertained,,'and the ordered stati
was determined. Z. Rog&cb~vsk&y&.:*,4
of defects in the solid solutions based on %T*3
Cwans2ation of abstrao-t7
SUB GCDA2 U
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fji'lu' F, .
IlThe Soviet diesel-electric locomotives" p. 2111j ((jP;F;s Vol. 5, no. (,, TUly13 ,
I U
Budapest, Hungary)
SO: Monthly List of Fast European Accessions., L.CI.P Vc1- 2, No. 111 Uov. 1953, Uncl.

DERLI, E.
I'Main-line locomotives and motor locomotives in the Soviet Union." 1). r52.
(LEMr Technikaj Vol. 8, no- 9p S6I)t 53s Bud,,Pest)
SO: Monthly List of Eaa& 11,wopean Access

-21,-1 7-
- - : EZ'-.X' E
11odern Hingariar diesel-electric locoir-ctives. p. '225. jji-~?t.L~Aj-,.. t
GEf'-'Z. Vol. 2, no. 8. Auz, 1955. Budaj-x3otu.
StAIRCE: F.---.st H--uroi..ieans Accessions List. (LIAL) LO, Vol. 5, no. 2, 1956. Feb.

- DERI, R.
DMIj, E.
Modern Hungarian diesel-electric loeomotivels, P. 409
Vol. 5,, No. ll~ Nov. 1955 Budapostv Huq;anr KDZLEKEDESTUI)OXMI
SzEmm
SOs Monthly Lict of East Emp&ikn Accossion.. (V.AL),, Iz, Vol- 5
NO. 39 Varabo 1956

DERJ, E.
Current questioms of railroad e1ectrification ~,n the Soviet. Union. p.
L
S21aILE. (KozI.Ekedesi Kiado) Budapest. Vol. 6. no.
liar. 1956. 3,
SOURCE: East 'European Accbssions 1--ist (EIFIL) -ribrary of Cont--ress
vol. '5, no. 8. August 1956

-%JKAI p Janool DEFLI, Fereric-
Pndlikatic transportation In fa~mdrieso 14unlmvedelem 8 no.,//~1:33-
16 162.

TMRI, I. CD3ry, I. J; GERI, I.; SABO, G. [ Szab6, G. J; OPOTSKI, P. [Oposzlc.V, P.
Synthesis of progesterone from eroatorin. Ned.prom. 13 mo.10:14-20
0 159. (MM& 13:2)
1. Zavod farmatsevtlcheakikh i khimichaskikh preparatov 111hinoin"
(Budapeaht) i Institut organicheskay khimli Takhnicheekogo universi-
teta (Budapasht).'
(ERGOSTEROL) (PROGESTERONE)

r) I, -(
r-~ C'),-
DERT, J.,TFELFOLDI, L. : TAKAB, 1.
I'Mechapization of Loading Trucks", P., 264. (X0ZLE-17M FSTITIOIXIII
SZEI-IR) Vol.. 2i'1 ITO. '7/8: July/Aug. 1954, TNdiapest, FlinFary)
-M
SO: Yontbl)- List of Fhst European Accessions, (MAL), LC, Vol. 4,
ITO. 1, Jen. JP55, 11no-1.

DERI, Karoly
------------
,An irregulqr conference on production. Ujit lap 12 no.22:10 25 N
160.

1 ~'A 13 1
S/081/62/000/004/649/087
B150/B138
.19
AUTHORt

TITLE: Ceramic materials for atomic reactors
PERIODICAL: Referativnyy thurnal. Khimiya, no. 4, 1962, 380,
abstract 4K219 (gpit6anyag, v. 13, no. 4, 1961, 121-133)

TEXT: From astudy of the procesoes taking place in atomic reactors,
specifications for ceramiamaterials are set out. Information is given on! ..
the production and technology of these materials. As heating elements
'
ceramic materials can be used which are
based on and UG, on powders ofj
U02
these substances in a metallic bond, and also based on Th Moderator
0
'
2
ceramics may be made from BaO, Be C:and from graphite. For regulating
2

and protective purposes ceramic articles can be used, which are made fro
M
the oxides of the rare-earth metals (3m, But Gd, Dy) and sintered HfO
2
and HfG, and also from B C and B19. Among, the structural materials for
4
Card 1/2

S/081/62/000/004/049/087
ceramic materials... B150/13138
reactors mention is made, of carbides and articles made from oxide
ceramics based on DeOv WrO2 and SnO 2* In a-11 cases the basic parameters
of the production technology of these articles (temperature, media,
conditions of molding and sinterAngp sto.) are given. [Abstracter's notes
Complete translation.]
Card 2/2

"Encyclopedia of iron metallurgy."' V61.11I/l: "RePractory
building materials of iron metallurgy" by Iaszlo Szabo.
Reviewed by Marta Dori. Magy kem fol7olr 09 no.12:563-564
D163.
"Encyclopedia of iron metallurgy" Vol, III/2:"Refractory
building materials of iron metallurgy "by JanoL Soiregjarto.
Reviewed by Marta Deri. 564

1 `4
~W,11T
L
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~am$m As* r6optam
C 49
of 0 foe". -
flow Offamic vomer" W- Wt Icom ISO
Magyar Kim. Ld&J,'SI-4fI949).-Tom
mixt. %vatig. 1.4 rod. NICO to 1.0 mol, Tio, lowm%jug
amm ut MgO were repUced by C&O. The ditlec. mist.
and temp. cccff. both incrftaed vvith incirsese in C--%O.
Fxpts. mere zmade with fitanates of Cm and U4. In the
Ca fitanstes nux. dicker. rem. commA in the cwnpn.
CAO.TiOl. Titanatesol)Ax,Cs.iuk4l9irs"tvjtobcaiit-
*O.J' "We lur toademon. Titmutes of Ila are not suitalste foe
001, xmitimsors but m" be useful m oplical moM in &pp.
where ultrushw t wam are used Istylin FhWY
IN
ant Sep
ME 1466
well
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I
DERI, 1-1. Hungarian CA: 0: 10966
It
with S. LEMIEL, E. ZOLD, and D. DUOS
lech. Univ.. isudapest
"Effect of ions on the density of water in aqueous solutions cf electrolytes."
Acta Chim. Acad. Sci. Hung. 3, 13-45 (1953) (Englisa swimary)

DE:-J, M.
IlCeramic semiconductors." p. 178. (Epito tn-vaF,,, Vol. 5, no. 5, Fay 53, Budapest)
AO- Mnn+.hl-%r T.4-q+. nf Ran+, Fivrnnt-an Ar-neqsions. Vol I No 2 Librarv of Congress Feb 54 Uncl

T "SO C'T
rl
VC, 4, April. 1954,
4.
1 'lly I is
1955,

Al
i= am Mturei M,
Rwand Mum Tech. lUqiv.~-B -. Ad4',GW
udamst).
-amor &s mig. ).-Thecoi
of en on 'of the ter mury - wtem
Tgqe malvoutlupt
n a functlam of the compn. Tk cluingm of
the coadi can be explained by the presence of partly owupied
octahedral sites in the ap~xzl lattice of F40iL Adiins. of
TiCh In erms of the concn. of the emply spaa- art not in.
corporated, Into the lattke4 Zn++ Is only Invorpmted at
these spaces if there Is an itmufficient no, of TP '~ Ions 7mvnt
to oompy all emptv spaces.: Zn"+'however mcupimt tctm-
hedralinterstices. *.7he chatge-4 in resiAivityand protability
of the c1N,%,~rhangr in relation to tmp. -,III d'Coul P11. am.
Lreq.
shownlu Sch"IA-1mr

)Ie R I) /~,j , , I tt
Hungary /Chemical Technology. Chemical Products 1-12
and Their Application
Silicates. Glass. Ceramics. Binders.
Abs Jour: Referat Zhur - KhImiya, No 9, 1957, 31542
Author Deri Marta
Title Piezoelectric Properties of Ceramic Materials
Orig Pub: Epitoanyag, 1955, 7, No 6, 207-210
Abstract: No abstract.
Card 1/1

DERI, Marta
'Surface properties of silicate glasses" by Cyorgy Koranyi. Reviewed
by Marta Dori. Magy kem lap 16 no.4,164 Ap 161.

KORACH, N.; DERI, Y.; 6ASVARI, G.; MOLrVAT, A. S.; I.; AfKU!;AIIY', L.;
%:h--
Examination of the Ifunprian fly ashes; fly ash as raw qatcirial. Ferio,11ca
polytechn chem 5 no. 4:34-1-356 161.
lo TAhretuhl fur Chemische Teohnologie,, Te-abnische Univeraltat.

DFAI, Marta, dr.
Technical ceramics. Muss elet 16 no,25:11 1) 161.

XZRIP - xwztL,- dr.
"Chemical indicators* by Eva Banyai. Reviewed by Dr. Marta Dori.
MW kem Up 17 no.lt46 -Ta 162.
(Indicators and toot papers) (Ban,,mi, Fma)

DERI, M. (Budapest XI.,Gellert tar 4)
"Nue'lear f orces and tho feii-micleon problem; proceedings
of the International Conference hold at University College,
London", edited by T.C. Griffith and E.,A. Power. R(mialded
by M. Deri. Periodica polytechn chem !i no-4:357 161.
1. Lehrstuhl fur Chomische Technologiiip Tochnische Universitat.

LERI, M. (Budapest XI., Gellert tor 4)
"Applied gamma ray spoctrometry", edited by C.E. Croutiuml.
Reviewed by 14. Deri. Periodica polyteschn ahem 5 no-4057
161.
1. Lelxstuhl fur Chemisdhe Technologio, Tochnische
Univer.9itat.

Martap dr.
Cermst: a new ceramic substance. Elet tud 18 no.14:423-
426 ? Ap 163.

14,-~~ta, Cr.
I- orrelations bet-ween the structure an3 F-,upF!rt-,v-s )f
Idtanium diox-i-In contnining pc1vovN,:+.a1].Inn a m~c~,nduntnrs and
6101octrics. VOSZP-,Ian, Vnulp egy ~-ozl 7 no.,-,3""--126 163.,
1. Chala- of Silicate Chr3mi stry of ibe Chontictil lnll,s-.ry University,
V(I,. ; .

DEIRI, Marta, dr. -".;
New achievements in the research of oxide ceramics.
e- .1
Epitoanyag 16 no.6:201-20' Je 164.
1. Chemical Industry University, Vesz:prem; editorial
board member, "Epit-oanyag.,"

DERI, Marta, a muszaki tudomanyok doktora
State of the research in ceramic dielet1trics and semiconduc..
tors. Kem tud kozl MTA 21 no. 4:1,31-453 164.
1. Chair of Silicate Chemistry, Chemical 1ndustry University.
Veszprem.

DERI, R.
ORevision of Producers' prices in the state-owned
furnitare industry." P. 115.
FAIPAR. (Faipari Tudomanyos Figymilet). Budapest, llungsi7.
Vol. 9, No. 4, Apr. 1959
Monthly list of East Sw7opean Aceemsione (WAI). LC, Vol. 6. No. 8,
August 1959
Uncla.

BOTIKA, Zoltan; DERI, Richard
----------------
Experionceo with the producerls price ayotem in the furniture
industry during the past half year. Failxr 11 no.32:376-381 D t59o

DERI., Robert
The Budapest Petofj'Sports Club for the-Kilian movement'.
Munka 11 no,10126-* 0 161o
1. Buda~Wti P616fi Sport Klub e1noke.

D121 5...
*Boise of Audio-Frequency Amplifiers" p. 84 (UdIgted21106 Vol. 3, No. 4
April, 1953, Budapest)
East European Vol. 30 No. 3 1954
SO: Monthly List of VOW# .. Library.of Congress, -- March jM~ Uncl.

DERI, S.
"Vacuum Tabe Voltmpters", -o. 267
"Appeal to the Conscience of Profe-imlonal Wrltpri0l, p. 260
"Domestic Manufacture of Polystyrene and Iron Dastlf,-p. 2?0
"We Need Spare Parts of Better quality. Why Eare Ramix Spare Parts
of Poor Q-1mlity?", p. 271
"The Orion ?79 Radio", p. 272 (RADIOTECHNIKA, Vol. 3, no. 12,
Dec. 1q53, Budwoest. Hungary).
Source: Monthly List of East European Accensionn, LC, Vol. 1,
no. 5, M&Y 1954/Uncl.

DERI, S.
"flow Do We Learn to Receive Telegraphic Signals?", P. C3-4.,,7 of Cover,
(RKDIOTECHNIKIL, Vol. 4, No. 1, Jan. 1954, Budapest, Hungary)
SOt Monthly List of East European Accessions, (EFAL), LC, Vol. 3, No. 12,
Dec. 1954, Uncl.