SCIENTIFIC ABSTRACT OPRAVIL, E. - OPREANU, E.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001238120006-8
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 6
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

MILKU, Sh.M. (Milcru S.A.]; AI~DZHEIZSKU, Ye. [Pngeloscu, H]; DAMIAN, A.
[IWIAl", A STCM"-ESKU,D. (Stoereacu, D.]; OPW, Kh.1Oprsx,H-1
OPR(TfU, A. Oproiu,A.]; IORGULESKU, G. (Iorgulescu,
G).
Virilizing malignant tumor of the adrenal gland. 1/.a Probl.andok.
i ~-orm 8 no.20F-103 Mr-Ap'62. (MIRA 16:7)
(ADPO AL GLAI;D-CANCF.R) (VIRIIJSM)

ANGELESCU, E.; D&IIAN, Ll.; STOENESCU, D.1 OPW~I,_11.; OPROP), A.;
MOTOIAMICEA, D.
Tho role of ndrontil cortex ~.om. onen in the preven-,ion nin.: %:.e
grave surgical complications. Sttid. COI,COL. umioe,,-, 11
162.
(PREOPEzUTIVE Ck-LE) (POSTOPE.-A'"IVE CAItE)
(ADII,':;;AL CORTa HUJION~;S) (S"CO",

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ProU-ms c!' tnat,~mc--. :
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1~ no. !. : 293- ~~ 't, ~

na ~j -1

OPRAVIL, Emanuel
Distribution of sycamore in Jesemiky Mountains studied on the
basis of local names. Prir cas slezmky 23 no.19105-112 162.
i-~ ~ A-1i; ~

OMVIL, Fmqrnj I
The age of the peat bog near Uvalno in the Bruntal District.
Prir cas slezeky 23 no.2:225-231 162.

F V ,I , hnal~l~o
.V.assei ongo nr. a r -.v as Kromer 4 z Dis Zr t . -as mfn
(4 n f
_'ZSJIV L4S*
,.v, l,:esy(.sloverskn iikndemi,~ vod.

Z/034/60/000/08/0094)30
AUTHORS- Opravil, Old*rich,_Engineer, KH1300WEaNa, 1~aiAtn~, Joz,f
ia-R Nitin, van -1
TITLE: Isolation and Analysis of Carbides from 16/13 Austeniti(_
Steels Aljloyed with Niobium and Molybdenum
PERIODICAL: HU ck6 iisty, ig6o, Nr 8, pp 628 - 631
ABSTRACT: The purpose of the work was to isolate carbides, affecting
as little as possible the isolate during the process,and
analysis of the carbides, particularly of the main sub--
stance, i.e. niobium and niobium carbide. The isolation
was carried out in apparatus similar to that described in
a report by L. Brhdeek (Ref 7) and BHckstr8m and
Heiskanen (Ref 8) in the case of roller-shaped specimens
and in apparatus representing a modified design of that
described by Brown, Clark and Parker (Ref 5) in the case
of specimens in the shape of fine prisms. Primarily-
apparatus as shown in Figure 2 was used, employing prism-
shaped specimens of the dimensions of 50 to 8ox2Ox5 mm.
placed into a glass tube (Figure 4). The working procedure
is described in detail and results are given which were
Cardl/2 obtained for a steel of the following composition,
,L,//C-

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TI TU.; rc t 1 i v i 3 S I,
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a rfect rd zone o f I It IV i. fl:I-.11 hit,
t ) I V.." i c cV;l T , .V.~ 1 , I ?,I , -;,, , t a I .,! , I, ~. f I cau~
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t rea I:Y-.rn t I, f t r -, t 9 1,c i trens wit !. ov, trot t h I I. FU ri."S" A T th, L, of "I
k ov ov ,,.% V ( 1~i h o ra . ry . f Mv ta I P 1, y N c s , .,: ! ov It 1. A.S ) .In !hr lell ;It -
t nerma I cyc lc I we re I int; la t ed wi t h he f " 11 (.)W : (),~ 1'0-1 J.-C It ) vp r';I x ., 'm t
T,n I n-90C OC ; T r r- I I OCIIG ; and III, I Toot: . Me int luonce, of thcnc cyc i,-:. or t 1,i
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J:)urna', 35, M6, 12, 50-5~j. 7h(, re. are 34 f`ig,v,.,, anJ 3
ASSOZIATNNS : SAY Brat isliva ; VUL Bra-, i ;)ava
Card 2/2

G/014/62/000/004/003/006
DO.30/DI09
AUTHORS: Ki-alik, F., Doctor, Duhaj, P., Engineer,, Havalda, A., Enrincer,
Schwei_-hofer, A., En~!jneer, arid Opravil, 0., 1,ngineer (Bratislava)
TITLE: The st.abilit-y problem of the structure of 10/13/Nb-chronie-nickel
:;teel butt-welded according, to the gas-weldinr, method
PI'M ODIGAL: Schweisstechnik, no. 4, 1902, lh5-1~6
TEXT: The increased applicat ion of austenitj~ steels in the cliomical
industry and in thermal power plants continuously demands MEher specifications
for reliable weldability, permanent heat resistance and corrosion resistance.
SuMies o f t lie phase convers iol Is ill t. If e h cat -if I Fect ed zollo of ill aust vili tic st ec I
during the weldin)i process or heat treatment are of great importance. Gomprehen-
sive tests, particularly on the basis of thermal cycles, showed that Cracks are
caused by the combined effect of a number of factors, e.g.: ]Aquid film around
the arain boundaries, inner stress, formation of' micro-cracks during coolinjr,, hot-
and cold-sliortne!;s, gelleratioll of' a flew phase ill Hie Jocal formation of it eutectic,
etc. Tile or-phase and form arid distribution of niobium carbides also have a con-
siderable influence on the resultin'- properties.
Card 1/1

OPRAVIL, Oldrich, inz.; SUM, Ivan
Quick determination of - sidual hydeogen in welds of
low alloy and unalloyaQ ;teel. Zvaranie 11 no.3:75-76
mr 62.
1. Vyskumny ustav zvaraesky, Dri.', :-lava.

Z/034/63/000/00'1/005/012
9073/9151
AUTHORS I Engineerl Borovek~, Martin, EngAnOtIft
Svdtik, Ivan, and Paiitni' Josef
TITLE1 Contribution to determining oxide inclusions in high-
alloy steels
PERIODICAL: Hutnick~ liety, no.1, 11)63, 52-55
Tl,,XT: The electrolytic method of E. Piperl H. Hagedorn,
H. Kern and J. Ingeln (Radex-Rundschau, no.3/6, 1957, 776) for
isolating inclusions in austenitic steels was found to be
unsatisfactory because: a) at low current densities (below
10 mA/cm2) electrolysis was too slow; b) with 113/8 stools
containing Nb, Ti or tio, higher values were obtained than by
metallographic examination for the total inclusions, but lower
values for oxide inclusions; C) 13/12 Cr-Ni steels caused
turbidity and 18/8 steels yielded no inclusions even after
passivation; and d) the ascorbic acid used was expensive.
The authors isolated carbides and iiiclusions by electrolysis in
1-55- alcoholic [iCl at 4o mA/cm2, at 8 DC max.. the inclusions
being removed at least every four hours to minimise oxide losses
Card 1/3

Contribution to detorir. Ining oxide.. Z/034/63/000/001/005/Gli
EOVE151
by dissolution; these amounted to I - 2% for S1021 4 - 5% for
A1201, 13 - 15% for CAO, and 23 - 25% for MgO. The authors
deve oped a method for isointing tho oxideov In the inclusions, by
chlorination at comparatively high temperatures, using a cycle
consisting ofj 1) evacuation of the apparatus; 2) chlorinationj
and 3) sublimation of the chlorides producedi the cycle being
repeated several times with automatic operation. Tests with pure
carbides showed that even tungsten and chromium carbides were
removed. Metallic contamination of the inclusions. if present,
does not cause any trouble. The electrolysis can be carried out
wi-th a circulating electrolyte, which can be cooled and regenerated,
so reducing oxide dissolution. In spite of this, the use of HCl
electrolytes has the disadvantage that some oxides, e.g. MnO, are
attacked considerably. Increasing the pH during electrolysis was
disadvantageous, as it led to the formation of gelatinous
precipitates resistant to chlorination. The advantages and
d.i.sadvantages of several electrolytes are discussed, the authors
prefvrring alcoholic acid electrolytes. Direct chlorination
(with no electrolysis) could be used to study electrode coatings
Card 2/3

eoptribution to determining oxide ... z/o34/63/0w/00 W001,10 19
and flux*9, and tho evacua,tiozL, OvIorinatkow sra& subalina-biorr cynNp
was flexible and could be varied as requireds
TI)er* are 2 figures and 4 tables.
A&SOCIATIONi Viskumny U'stav zvarac'/sky', Bratislava
(Welding Research isibtitute, Bratislava)
Card 3/3

OPHAVIL, C-ldrich; :'ITNANSKY, Bohiimil; )EBIQ`,TIAN, Imrich
Isciatior, of 'he carbide phase from titarium and
wol-fram alioyed chromium-nickel steel and its analysis
by the activation method. Chem listY 57 no. 12: 1294-1300
D 163.
1. Vyskuwny ustav zv&racsky, Bratislava.

ACCESSION NRz AP4034557 Z/oo6.5/64/ooo/002/0284/0200
AUTHOR: opravil, 01drich (Opravil, Olldrzhikh)
T177-r: Identification of sigma and chi phases In 18/8/4 CrNM steels
SOURCE: Kovove materialy, no. 21, 1964, 184-200
TOPIC T.M: sigma phase, chi phase, CrNiMo steel. micro x ray examination,
impact resistance, hardness, potentiostatic isolation, metal" graphic
evaluation, delta ferrite decomposition
ABSTRACT: The paper discusses identification of the sigma wW chi phases in
18/8/4 CrNW-jo steels by electrolytic Isolation. The sigma phase should not
exist in FeCn4i above 850C. But the nine samples tested still contained
V,p Mo, promoting the formation of the sigma phase and wrterding the area of
its exIstence at least as far as 900C. In two samples, after ZO and 1W hours
at 900C, even more sigma phase was precipitated than In another roasted only
10 hours at that temperatare. While the ibolated si4gma and 0d phases cannot
Card 113

ACCESSION NR: AP404557
be distinguished In the optical microscope, mioro-x-raq examination clearly
proves the prosonoo of the chi phase. The lopact realstame decreases with the
amount of sigma and chi phases. whereas neither a tendency to increase nor to
decrease could be noted in the hardness. Potentiostatio Isolation at 630 mv
(relative value) in an aqueous solution of 15% calcium chloride + 2.5% sodium
citrate + 5% hydrochloric acid at 6C Is suited for isolating the sigma and
chi phases. The M4-ma phase was Isolated together with the ohi phase,
Isolation alone yie:419 no unequivocal "wer too the queaUon of Its origin*
In conjunction with 'the matallographic evaluation, the origin of the sigm phase
may be attributed U) the detsomposition of delta ferrite. The paper gives the
chomical compotsition &M the amount of both phases for the LrAividual suvIes.
The analysis showed -that tu"ratures up to 9= for a IoM time support the
formation of these Iiiases. Orig. art. bans 16,figures, 4 tables.
ASSOCIATION: Vys1avm;r ustaw svaraoslw, Bratislava (Weldift Research
Institute)
Card 2/3

ACCESSION KRs AP4034.557
SUM~ i 12J4163
SUB C=s IMM
DATE ACQs 12H&764
NO REY am$ 003
i=s 00
Card 3/3

'SOURCES, Hutnicke listy, no. 1, 3.965, 47-50~
-TOPIC,TAG3: phase analysis, electron iticroscopy, !!electrolysis, aetal diffasion#
carbon, welding technology, ratallurgic research
ATALTRAM 'Phase analysis of ~urfaeo layers of ground materiala
iEf-dibtussod. The depth of the layer of oxides assuming that
it is homogoneous, to 1.1 microns. The dopt~ of tho tu-ider-
lying layer Is difficult to dotermino, The method is suitable
for work in microeanalysis$ micro X-ra7j and electron mioro-
scopyo.Carbon diffusion from the welding rod into the basic
tastal or vice versa can be investigated by electrolytio isolation
of the carbide phase, together with the graphite carbon in sub-
joequent layers of the metal, and the analysis of C in the isolat-
ad sanple. The depth of individual layers should be meaaured exact
lye The process of- dif fusion can then, be shoun graphically. Eleo-
Crd lt2

L 3763-66

WALD, F.P inz.i OPIMIL, V., inz.
A simplified method for calculation of bearingE. Inz otAvby
6 no.1:2~>-28 Ja 158.
1. Banske projekty.

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,- p t~ .: Z),- - ;~ , -I, i_.. . . . . .1 ., - -i i , -. , 'I - ~ . . . I - .
. . z 3 , ;~ -, I '. - , .. . . . .
:L -, - " Z - . L I . .. I
I, -, - --i -- I n~;! , - u , Itt ',,kr, I

WTUI
WJACZ ODIDBI M/0057/"/WO/003/0557/0560
LMMIUMM&
ybyslig -lMtltUt* 116 Obadev, ft~(Irislchsskj Imstitut)
oilA
R flair
T. 36-, no. 3t 1966, 557-SW
*PW, TAW:,, noleculer bass'# molecular electronics, resonant cavity ling width
two.,earlier papers (Radjotekhmiks I elaktroialks, 8, 158, 19,63; Izv.
-'4MdIofIzIka,-4, No. 30 479, 1964 the authors hive discussed molecular beam
oscillators In which two.cavity resonators are traversed4uccessively by both of two
oppositely directed molecular beans and have defined a characteristic time T* which
deteralmes the frequency distribution (Ifte width) of the oscillations. Here they
.4resent results of a calculation of T*. The calcul2tions were performed by techniques
ip' ---deackibed In the references cited above and are not described In detail here; they
:~Iftvolve-solutlon of Schx6dIWr*s equation'tor the beau molecules Interacting with the
resonator fields and Maxwelles equations for the resonator fields excited by the beau.
;btpresslons are given for T* and for the difference between the generated frequency mW
the f roquemy of the molecular transItIon 1wterms of the frequency of the molecular
J~f]-Arsnsltlom, the resonant frequencies and Q facto" of the resonatorst the fLold
['strengths In the resoastorsp the matrix element of the molecular polarization for the

L 25509-66
Acc Nib AM11405
transition concerned, the times spent by the molecules In the resonator* and between
them, and a factor that taken account of depolarlitation of the'solecules during their
flight between the resonators. The quantity T* to Independent of the field strength
In the "oonstors provided the resonator f Ield strength Is very high or very low, the
molecules spend such more time In the rescustors then between then, or the depolar
IsIng factor In very low. When the ratlo-~of the time spent by a molecule between the
resonators to the time spent within a resonator exceeds 14, the frequency depends
strongly on the field strength within the resonators and the oscillations my become
unstable. The present calculations are valid only when the difference. between the
resonator frequency and the molecular transition frequency to small; when the detuning
Is considerable oscillation may take place at several f requencles. OrIge art, has:
'4 formulis and 3 figures.
IMI 003
k-. BUD CoMs - W. VATBt ORIG.
"W;
,if
4
17
7
rV

OPREA, Adrian,,, arhitdot
Decorative urbaL Energe-Uca Rum 11 no" 171-4 -!C~C
Ap `63.

0~'R'~.A 7 A.
ti * no I e,, n I ; !, r~ ; : , -1 ' , 1% , ; . # ". . I, " ;I , , "n ') , . , , " -j I 'I i % .I ". j ; '. - s."
~~ j - I ~ :- - . ~ -

OPREAN,
!nve.iflgxi'lrns or ine vr,'Lup Inrle.9 jr genr
(-.(.,n5tr mas P n,).! 1-1-2'4 :a lbz
I I

RW-WTIA Soil Science. Genesis and Geog2-aphy r)f 3oils. T_1
A3 Jour :Ref Zhur - BiOlogiya, Nn 16, 1958, No- 72630
Author :Staicu) I.; 02rea, C. V.; MureBanu, P. L.
Inst :Rumanian Acaderay, Baza Timisoara
Title :New Contribution to the Knowledge of the 6olonchaks ri'
the Middle-Danubo Lawland within the Rumanian People's
Republic
Orig -.'ub:Studii s. f3Liint. Acad. 'RPR. I;aza TimiBorvra.
Ser. st~linta a.:;ric., 1956, 3, No 3-4, 57-82
Ab c tr a :An exea.3lary agricultural meliorative classificatinn is
cited of jaline soils in the lowlard, particularly in
the Pazesh-A-anlm river basin. Acid, neutral and weakly
a:lmlina and al-kali soiie are eLlatiniraishol. 3oms
physical-chc~ucal propertios of the soil are briofly
examined, nrd -ethods of their melinration - liming, use
of fert-I,:,r,-r3, I;-ypsum. troatment. Tt is -,reposod t-,
C ard ' t2

OPREA, C
N
AGRICULTURE
Periodical: STUDII SI CERCLqARI STIINTIFICE. SERIA STTINTE AGRICOLE
Vol. 4 no. 1/2, Jan./June 1957
OFREA, C., and others. The pedological basis of the western part (.f
Rumania and its agricultural value. p.9
Monthly List of East European Accessions (EEAI), Y, Vol. 8 No. 3,
March 1959, Unclass.

OPREA, C
AGRI C LJLTURE
Periodical; STUDJI L~l CEhCLTAhJ ST11*71FICE. Sr-U~D, ~-TIj,7-
Vol. 4 no. 1/2, Jan./june 1,57
DPRI-A, C., and others. Contributions to the knowled~-e and utilizati-n of
sands in the northwestern part of Rumania. P. 35
Monthly List of East European Accessions (FX,.Al), LC, Vol. 8, No. 3,
Maroh 195-4, Unclass.

OFFYA C---V,, prof.; DRAGAN, I.; CONTREA, A.; M1HGC, Fba
--I
Increase in the productivit7 of the podzol of the western part of
Rumania following fertilization and lining. Studii agr Timisoara
no.1/2:17-29 161.
1. Sectorul do pedologie, Baza Academioi R.P.R. Timisoara. 2. Membru
&I Comitetulul do redactie si redactor responsabil adjunct, "Studii
si cercetari, Biologie si stiinte agricole" (Timisoara)(for Oprea).
(Rumania-Podzol) (Fertilizers and manures)
(Liming of soils)

OPREA,-~._Y., prof.; MURESANU, P. L.; DRAGAN, I.; CRISAN, l.; OPRIS, L.;
MIHOC, FAra; BALAN, S.; BAUMSTARK, I.; FETRESCU, C.; VILCEANU, Nicoleta
Studies on the soils of the western part of our country. Studii agr
Timisoara 8 no.3/4:163-169 JI-D 161.
1. Membru &I Comitetului. do redactie si redactor responsabil adjunct,
"Studii si cercetari, Biologle si sti:Lnte agricole" (for Oprea).

OPREA, C. V., prof.1 CIAGLIC, I.; POP, Dm.
Soil improvement zoning of the region of Banat, and its effect on farm
produce. Studii agr Timisoara 8 no.3/4:171-178 Ji-D 161.
1. Membru al Comitetului do rodactis si redactor responsabil adjunct,
"Studii si corcetari, Biologie si stiinte agrioole" (for Oprea).

BUJOREAN, G.; OPRFA C.--V,-, prof.1 GRIGORE, St.
SolomRdak reaervation of Socodor, region of Crisana. Studil agr
Timisoara 8 no.3/4:317-328 Jl-D '61.
1. Ylembru al Gomitetulul de redactie 91. redactor r, neabil adjunct,
"Studii al. cercetari; Biologie sl stiinte agricole"'Mr Opr.-).

OMAv C.V., prof.
Soils of the vestern part of Ibmunia. Their nomuclature and
cUnWication. 1. Natural conditions for the process of soil
formation. Studii agr Timisoara 9 no.1/2:63-82 Ja-Je 162.
1. Membru al Comitetului de redactie si redactor responsabil
adjunctv 'Studii ei ceroetari, Biologie oi stiInte agricole"-
Timisoara.

OMU-P -C. V., -Prof.
Saline and alk&U soils of IWmiknia, and their melioration. Studii
agr Tbdooara 9 no.1/2.*177-230 Ja-Je 162.
1. Mlembru al Comitetului do rodactie si redactor responsabil
adjunct, 83tudii xi corcetari, Biologie si stiinte agricole' -
Timisoara.

OPREA, C.V.; BALAN, S.
Phenomena of soil sliding destruction in the upper basin of the
Timis and the measures to prevent and fight ;tgainst them. Studii
agr Timisoara 10 no.1:9-23 Ja-Je 163.

OPREA, C. V.; BALAN, S.; Plb-LIPr7~-IANI', Citea
Humid phreatic soils in the Banal~ Plain and their
agricultural value. Studii ap,,r Timisoara 30 no. ',:
215-240 Jl-D '63.

OPKEA , ( . V.
iig~.tli interr.a*-ional orFre:3!: -' . U
I - . - . .. ~ I .
Timisoara 10 r-lo. - : ~(r'-30() IV3.

OPREA, C. V.
International SYmPOsium on the Economic Estimation of' t,-
Studii agr l'imisoara 10 no. , -I. I -
Agricultural Soils.
1. Membru al delegatiei R.P.T,_

CPRFA, Constanta 1--om. ralcn ('Itenlta;
.1 -r.), countri ervelope' in tne perf -me :)f resins' ~y
I - - - ,
Fledlor. Reftpwpd 1-1 orstanta Dprea. Natura
no.2t94-95 Mr-Ap 16S.

POPA, C., ing.; D., ing.
Carbadiri, a s,~bstit--te c:," ~he , St i 'oh ~h-- -L3 nr,.'/':
- I
34-35 JI '61.

CadLJT;-Givcn 11.a
Country: RumEn i a
-not given-
BuchDrest, Stiinta si Tehnica, No 7, Jul 2961 , pp
a Substitute for Copper Sulfate."
m: 'Carbadin',
-uthors:
FO pi, , C - , Enpineer .
0 F?Fal , _D Engineer.

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Ori-: u') Gr -i(:-in, vi - s i_ liv 15 Nc 1.
s'-r
Scv-ic-l v--rtmtf ~-l s -c I f '. r +il,
It .1-~ r, ~-Zle~lijl, :,vin stu"ied.
Tr--.:.,s , lv ni n c ~-i,cl n' huriz nt -.1 -p, -
i)c . 'L;l , hji,h,-;Ft yj-.~JCs. Th ,;Ii( ots L;rc-,.j '),St
i-unn,-rs int,, circid ~.r J* i) t'h
n. u tu ---- i t" i vs ub s tu -n cc- s f-ri, 0 r c Ld
tj r
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OPFAA, E.
--------
Contenporary technical progress and development of
society, St si Tah Buc 14 nr,.Ij:35-37 C 16".

cons~!;u' "'uperior a' ;4?,riculturii;
f o' the
Z-)T~~tion; -1-tatiunea Centrala
nn
T 4 e - -s
,nd ti,e ~~vestocli
Vol
r3 C
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e r in lc'64
-C"t5_1 j::Lc,, ;,L e4~ is
-:.e w. s rcortir.L tc.e4r -.oc ne
bcr n
e ix. terrx of breed
-ures A aL.ta or, rec~)rd -roc Licers
i16

,24/,7-70d D295/D308
AUTHORS: Oprea, Florea and B91ta, Petre
TITLE; Experimental investigation of some metal-oxide
semiconductors
YERICDICAL: Referativnyy zhurnal, Avtor,,4atika i radioclektronika,
no. 5, 1962, abstract 5-4-6 sh (Bul. Inst. politehn.,
Bucureyti, v. 21, no. 4, 1959, 73-86~
TEXT: The authors investigated the influence of synthesis tempera-
ture, synthesis duration, cooling reeine, various binding substan-
ces and compacting pressure on the value of specific resistivity,
tempe.-ature coefficient and e.m.f. of copper-oxide semiconductors.
The results obtained enable the dependence of properties on techno-
logical factors to be clarified. Several semi-conductors of the ter-
nary system NiO-CuO-Li 0 are also investigated. Data are obtained
2
on the resistivity, thermoelectric motive force and degree of bak-
ing of these materials. Semiconductors# having suitable properties
for the preparation of thermistors, are found as well as materials
Card 1/2
S/194/62/000/005/063/157

OPTUJ. , -lorea d(-j, . -- r~ . , It-r,o . t, I,rj i -, ; i. n----Lkp
J- .
P.echanisL. ~,f 'Le axicie. *, ~ f I.- cr. s,,ilf ides and coT.1 cr
sulfides. Rud met zbor i ( 0:1 '6: -
1. Fah-ultet metalurf;ie, Politehnic, 1- .1,
Bucuresti, ";..' . .~oinuna.

OPHEA, F.
BALTA. P. RUWIA
Duclarest, Ctud:U si Corcetari do llotalurrie. llo 4, 1962v
pp 405-414.
"Spmi-Conducting Properties of Sintori2ed Uasnes Belonging to
the ZnO-TiO2 System.w (Paper Given at the Sixth Science Ueeting
of Tenching Cadres of the Po27tachaic Institute in Buch&"st, October
1960.)
Co-cuthor: L
OPREL, F.

OFPEA, Florea, kand. tevhn. znanosti; JAGOI 1". , Pavel , as!stent
Oxidation cf zinc and 'Lead sulfides. Rud met zbor 4:
345-357 '()3.
1. Fakultet metalurgle, lnstitu~ui FcIIteVIr,.c, Poilzu 1,
Bucurestip E.F. Romunri (for ~-prHa',. 2. %~ddejpk za
montanistlkn, Askercova ~O, I Whl.istnn (!'or Japrv4ir!'.

OPHEA Gboo Rho
:~,-~~-k--%, - JW-
Real support to tLe enterprises in fulfilling their oblifations in
the socialist competition. Munca sindic 7 no-4:9-11 Ap 63.
1. Presedinte al Consiliului local al aindicatelor, Timisoara.

OFRFA, Sh., ing.
Developzwnt ~~f *.~,e --a.-!-,Ine an,-~ ejiLpmert
constructing industry. X-, ela(!trif agric -~ no. 4:'-,',-12
,64.
1. beputy Rln~,,.-!.er of the Mm-tillne qu"Illrig

7-- I-AT
,oating furnaces vith fireproof TwAerials f different kinds.
-3 7 T"-; L. (Xinister,11 7~ms~ructllor si Industriel 'Ateriale.-r 1e
Const-uc'.ii si 'Iniunea .3indicatplor de ~lariatl din Intrepr-Inderile .'Ae
Constructii) '-~lcureqti. Vol. 7, no. 293, Auty. IT 5.
So. Sqst European Ac~-essi ns List Vcl. 5, N(;. 3e 7 tembr,r, 1 -,5(-

COUMPRY ILUMAN I A 11
CAIWORY Chemical Tech n oll opy. Chemical Prodiiets and Their
Ar,)Iications. Food Indiistry.
ABS. j9UR. R_Mhim., No 17, 1959, No. 6`50'.1
AUTHOR Onrea,
INSTITUTE ---: - --
TITLE Llxactitlide of tile Acidobutv-,retric Gerber's Yeti od
ORIG. PUB. lev. ind. alliment.. rnd. animale, lr~5P, 'o 7-P.,
in-13
AMTRACT Analysis of i~e errors of ti-e determination of
fat content in milk in accordance with t~e Gerl~prls
metl-.od, is riven. Errors !bear tl~e direct ralation
to 17raduation of but 'Yrometers, exactness of milk
volume measurement ~11 ml) and reading of buty-
rometers. Briefly descrifed 1"ven's oDfical in-
strument that pnrmits reading of V-e butyrometer
scale with an 1 cci,racY eq,iivftlent to ~ ('..I gr.
fresented are modificotions of the method as em-
vloyed in certafn cniintrips ~modification of the
-inette volume, changes in the prnrluntion of hu-
tyrometers, and others). - A. Marin.
Card:
H - 1-3

":.'-,e zud e o '2ow a rd an E-le bird
Revi tr~.- r a, o j
pp
S t a c
~.az:saje a
V a x an L
e s references.

1
-DOM F4d..b,- Cal-
=&fts,
t
fibcn
Wale
f
re 0
t.Y;
ya
pro
v flbti~; com
pargue.
Hai
'.'Z' adVrp r"W
tbif."
Ofibiii thi-
AM16' -awaimmv
A~Ah&,::aj,
A
pme,
mith "Cpjo~jb6,
13116i
Aheir.
CA i~

OP'IF k, I~,: 3 V.
It T ')I Lr Wl
--np r
1 TF ICE.
ine

POPPER, A., dr.; d;-.; -, dr.
Fatal roac* ',G-. F ftf-,: iii, if obrumol.htha I' e 4 r. vl:~ ~ r.I Sara' ~ ,-. .
Med. ir.,e7n. B,~ c,.:- .1- Aj I k ~ .
1. lucrure -fe~-'-.a',a 'n '~14ta,~~. nr. ., --ateu,. '~e~!*-~[, I;e ~' .1
4nte -ne .

RUMANIA
14ACAVEI, Gh., Dr, U-Col, NAXIE, B., Dr, Lt-Col, and OPREA I.,
Dr, Lt-Col Laffiliation not given]
"Considerations on Two Cases Of FiOBeinger-Laroy-Reiter Syndrome."
Bucharest, Revista Sanitara Militgra, Vol 62, No 1, Jan-Feb 66,
PP 83-92.
Abstract: The authors discuss in some detail two cases of
Fiessinger-Leroy-Reiter syndrome, one in a 23-year old man
and one in a 41-yeRr old one, and speculate on the proper
classification of the syndrome.
Includes 19 figures and 11 references, er which 3 are Rumnnian,
5 French and 3 other Western. -- Manuscript submitted 20 November
1964.
1/1

BUJOREANP Gh.; GRIGORE., St.; OPREA, I.V.,, MARUSCA, T.
Contributions to the teratological flora of Banat, Rumania. Studii
agr Timksoara 9 no.3/4:395-1#00 Jl-D 162.

HUICA, I.; B'CIIESAN'J, V.; G~IAHMALIUC, G.1 GHIIJ, T.; PFREA, m.; PoPA, s.
On the age of the broken stones at Schela-BumbeBtf Jiu-Arseni
(northwest of Getic Depression). Dari seamn sod 49 pt. 2.:113-117
161-t62 (publ. 1641. (AURA 17:11)
1. Submitted March 10P 1962.

fIFTIESC!" , Arias',asle '~-ra~'o- ) ; I :M I-i ." , ' - , ; r 1'. 1 -', , - ~~ ~ ; , A,'' ~. -' - '- -, ,
- j i . (~:, - 1" ~ ~
TiAor; VI.-JILP , libcau, ; J~:-( I'--- -- , ;, - " !'~ , - -: '::," -' -. 11,
(i. loiest! ') ; i , (, , i. . . 1.4 A'. ~~ ~ I1 1 . , i , I' . ( ~- 1 ti. r. , .: , , 1 ~ ~ -. r! Fj- ; I iA "; i " 1; , .
, 1. 1.- . . ~ I I ) I .
V* , -, f 1~. ~k'. -,. . , ~ . I i,. , ~, ~; I-,- ,: t I
. , . , (Breaza " ; !, ;. ~
"o 'Ve'l i r, "': . "0; ~' " H ". rit . f : i~ i - 31-t, . t- ', ~.

VASILLSCI.~ , Const. ; OP!J-A . Mimi; ?Gi;""SCU! , J.lena
From the branch activity of tho Society of' I.att~emuticuj
ard Fhysica'A Sciences, 'Iciesti. Ga~ YiAt fiz 15 ilo.11.
666-t,67 1. 16-3.

FIDRIAN, Petru, prof. (Dej), MOWTUM, SL., (Bula Kire); HERLING, G.,
student; PIRSA.N, L.C., sludent (Ducureati); IONII;CU-TIU, C.,
COSTACHESCU, C.V.- LAMBA, Stelian (Constanta)j LTVIU, Petre
(Pucioasa) STRATESOIJ, Ion , studentl BRINZANMCU, V., ei-ev
(Constanta~~ KLIM, Bratj, student (Bucuresti); 7EMPEkNU, C.
(Hunedorara~j CkLINFLCU, Aurelian (Brasw.,); MUNTEANU, Valentin
(Cluj); OFRUr M-1ron (Ploiesti); MIRkILF-ANU, N.; TIGANOIU, Al.,
inginer; Buicl.'u, Gh.j POPA, Rugen 1. (Iasi)
Proposed problems. Gaz mat B 14 no,8.481-05 Ag '63.
1. Institutul PoIll.ehnic Bucuresti (for Herling).

I ONIESC U, Florica (Buc ure sti) ;' 13CAll , C. (Crai ova); MA77 I,
Auglistin 1. (Cluj); XJRCII::!,SC~~, (rigen (Graiova)';
S*-AM.SCU, llie (Sibiu); ',:El-)F.'Y, "iberiu (Tg. 'cures,;
O'REA, Mron (iloiesti); RAGIFINA, V. (Ilreaza); IONFZC~,
Iiie (Pitesti' Emili a (;~ucuresti) ; A(
Emilian (iucliresti); (;~-ucuresti,;
:ranitchiy eodor (.Tg. ..Ures)
...xamination ;uestions ~-',az mat 74 Ir no. 'e 164.

. E , :,A _ - , -
')F,q
: r. c m n ,, , , , o n ~- - ', , - h , k; r, ' , -,,' ,, , a -; , x, ~ -- - p , L, 9 1, . (; r r o c ' 5 - I -~ 2
~rp P. , "iz "r, nt, I," . , j , - .. I . a . 'r ,

SAIIA-11, -', , ing. , ~..,",,
- I. - -a, , - " , - 1 r. . "Y -g-" r- ~~f , - : -jr - ,
. . .- , to.. =~ ~:', f. - - - - .
:. .. - ',' ' t
agoiinnt -,- 1~ n,-,.'-. , ~2. ril,'

L 41118-66 ",,P C t sis et .11)
AM NM 19F).30205 SOURCE CODE: MJ/00l7/65/0O0/0D7/0372/O373:
AUTHORs 0
Glusca, 0*. (Doctor) 1-Flarian, I., (Engineer); Lepusan, A. (F"ici&A);
ORG: [0yrea; Florian; Lapusan] 'Tractorul" Works, Brasov (Usinele Orractarul");
[Giuscal Geological Committee, 209m-st (Comitetul Geologic)
TITIE: Method of determining the dimensions of silicogenoum powders
SOURCE: Ketalurgia, no. 7. 1965, 372-373
70PIC TAGS: metal casting, silicon
ABSTRACT: A description of the method used at the Tract Works to determine the
7. ~w w"
dimensions of the silicogenous pwder In the molding sand. determination is
De aim
based on the auction of a large volume of air mid on suspe aim filtration by means
of a device consisting of a series of crucibles with filtering plates. Orig. art
has: 2 figures. [Based on authors? Eng. abst.] (JPRS]
SUB CODE: 13 SUBM DATE: none / ORIG REF: 002
11b UDC: A21.7L2.L7
,,~V'

BUJOREAN, G.; ARVATP A,;[deceased]j SERBANESCU, I.) POMCUJ P. C.;
GRIGORE, S.; OPREA, Reghina; PADUPSAM., 0.,- ROMLN, N.
Lythrum tribracteatum Salsme,, a now plant in the flora of Rumarda.
(Contributions to the flora of People's Republic of Rumania).
Studil agr Tizisoara 8 no.V2tll9-128 161.
(Rumania~Lqthraceae)

BUJOREAN, G.; GRIGORE, S.; OPREA, Reghina
Variability of flowering time in some ]igneous species of the city of
Timisoara. (Phy-tophenological notes. I!.) Studii agr TimiBoara 8 no.
3/4:223-236 JI-D 161.

i r,,3 ri nt i t ~I

SIMIONESU, Cr., FELDMAN, Dorel; OPREA, Spiridon
Researcn on grafting vipyl polyct.loride on cejlulose and
derivatives. Studii cerc chim 12 no. 1:61-70 Ja 164.
1. Department of SynV-etic and Natural Macromolecules,
Faculty of Ir,dustrial Uemistry, IaBi Iolytechnic
lnstitute.

STAN, L.; 0L14k,_$t2j* ABRAMI11C, 1.; MORGOV, I.; TUDOR, 1. , prof. (Bacau)
On the geography manual for the 9th class. Natura Geogra-fie 15 no.2-.
53-58 Mr-AP 163.

PAIOCSAY, Rudolf (Cluj); OFRLA, 5t,!faz ,,L-I~ /*
"The pomology of Rumnia.11 Vol.l. iieviewed by Aadolf Paloosay,
Stefan Oprea* Natara Biologie 15 no.400-91 Jl-Ag 163.

OFREA, V~ctor
I drove the 100,NX-) traotur. St. si Uh We 14 nO.12:5-6 D162.
1. Saflul sectlel wjrtri~l a Uzinelor de tractoe-re
Brasov.

OPRFA, Victor
I drove the 100,1-~00th tractor. St s! T~h i-tuc 14 14
no.12:5-6 D'62.
1. Head of the Section of Mechanical Assembly, 'rractor
Plant, Brasov.

Oprean, A.; 5tefanita, F.
TrCIV MOGY
Periodical M7~*LUCIA ~I r.!.I'T.'I'CTIA DF XASINI Vol. 1G, No. 11, Nov. 195'~
Oprean, A.; Stefanita, E.; Review -f the "Pan-Union Industrial Fallit,ition"
i.n Mos-ow. P. 977.
Development of the metallurgic industry and of machine
construction in the Rumanian People's RepuLiic. p. 1037.
Monthly List of East European AccessJon5 (FRAI) LC; Vol. 8 'N o. Y_
I%y-1959, nclass.
II-Coc., j.,

Oprean, A.
T'~CIHII jI,Or-Y
Periodical MPTAU'R:;IA 'I * W7VW;CTIA PF MAINI V(-,I. IOP No. III, Wov. 1W
Oprean, A. Modem trends :)f "aciiine-tool automati(bn. F. 982.
Monthly List of Fast %Fropean Accessio s (EEAI ) LC; Vol. US, :'o. 5 -*
I Q-
'tL'Tr195~, UDclass.
~-~--v,

R/002/60/000/012/00-/003
A125/AO26
AUTHOR: Oprean, A., Engineer
TITLE: Automation of Machine Tools by Program Control
PERIODICAL: qt1inji si Tehnicj, 1960, No. 12, pp. 16 - 17
TEXT: The author reviews various types of machine tools, ourrently used in
machining operations. A great achievemmt in the development of machine oontrol wa-S
accomplished with the copying servo-mechanisms. These guarantee a high production
rate and great accuracy. Another system is based on digital control; it ~onsista
of mechanical, electric, electronic, photoelectric and hydraulic devices and can t-.~
divided into four stages: the programming, the controlling, the working and the
checking devices. The programming Is accomplished as follows: the X, Y, Z cc-
ordinates of the characteristic points o+he blueprints, originally given a3 fig-
ures, are transformed onto a punched paper tape; this is then fed intc a
which determines a great number of points representing the tool trajeotcory ThI_&
trajectory Is then recorded onto a magnetic tape. Nring machining, the impulses
are recorded by three active channels and one checking channel. The value 3f 7ne
displacement is determined by the number of pulses and the operation spe6d tly
Card 1/2

OPREAN, Aurel, inzh
Contributi-~ns to ',ne stuJy and ccnst:--,c'.Ior :f hy--Iraua-.~ ~larpe
gears. ll-'etalu.Tpla c-)nstr maq 1.4 no.3 23~ 2117 Pr t2.

OPPEJU, Aural, ing.
Considerations on the calculation of the theoretical flow in tooth-
vheelod pumps. Matalurgia. oonotr mas 14 no.11097-1004 N 162.
1. Editura, Tebriica.

I I . E , '.:*. k, , '*-' -,
. .. .. p , . ,
!-' r- - " - ) ! , . . -
~', -1 7'
, t,~ L . . "
. --. ._r
.. .
to:- - . . I
I I I .. I
- . . ) . I
" I I I . , - I - "
1 1. . . . . , -
ill.

BODE At C. I Ffk', A 1AN, 11. ; 0PREAIJ, 11 .
New contrilb4it onA to $no rnawlsdge of tne na:ogen ri*rYP.Pnft,.n-'&zIF.~eA.
Itudil care ohimin Cluj 14 no.1;173-180 161.
1. Inititnte of Chemistry, Rumanian Academy, Cluj Brancl.
2. Corresponding Member of the ~umanina Academy (for Bodja,

BODEA,.K. [%dea.,C.j- FARKAS JUN v 7. - OPREAN, 1.
A,~tllon of n1tri-i acid or. pal ybrorjop~erjr)thi azines. &fur. ob.
yhim. 34 nc,."z2369--2TI! -71 164 (MTRA Ylt8)
1. Institut khimii Uuzhskcp,-, fll] Iuia Ak&dem"i nauk Faimynakoy
Narodney RespubLli~c...

OPREAN, I., ing.; STFFANF.V1, I., ing.
Designing and constructing capacity standards. Me t r,).' (),c 1 a .9 r ,
12 no.3:10r)-Ill lAr 165.

POP, Liviu, prof. liniv.j OPIREAN, ftiroea, conf. univ.
The sand will be evaluated in Oltenia. 3t .9i Teh Buc 14 nc.~.
10--11, 16 Ag 162.
1. "Tidor Vlaliidres~~i" Agronomi,-, In3tit~ite, Cral--.,va.

:CULT OVA I L() L At, T"-. AU I TS. )I
Abs. Jejur.
A% thr r, Tj ~r'
Ros. Tm3t. of Af,.7on~m
a I ovn
y
Y, 'f 1 n I t' , -r- ft i rip,
Amwi--O. "',at. aaron. rrairma,
Buour.:!4t4l., 31 110-329
r~l 1.1.ri in araftinps
be6n 3tulie~!. -;t is 110,;od ~.n,4t -0firilty is not
a nst~jral factor whiori dnmlnat~s 4,n the aging
pr')e-na 0" tpu~ pra- 'rt.; this is m, Intalnod dospite
4hi th&t tho--a lc! a low i)orceitagfs of c)utl)ut
froli grti-e grnfta of tito firqt 7nrlety (15%) even
rdth R.Dod afflaity betw,:,un oY,F:rt and stonR. in or--
dvr toloarn how tho (walescanco-, of the gi,fift with
:3tock ~'q pcm.,3~,')la in some oase vatille ijvwc;,%lbl~
In oth._,r3, It is np3ce.49ary to study the activating,
?
I 7r-,

02.7JIIJ~Cultivated Plants. Fruit Trees. SmIl Fruit PlantG. m
Abs Jour: Ref Zhur-Irliol., No 17, 1958, 77801.
Author Oprean, M.; Pcpescu, M.; Manolache, E.; Dc,'~rescL,
Inst
Title Rational Utilization of Sands in Krayov Oblast
by Means of Orchards and Vineyards.
0riC Pub: Gradina, via si livada, 1957, 6, No 4, P-2-34.
"Ibstract: Sands (.!f Krayov Oblast are used for vineyarOw
(12000 ha) and -Tchards. With higb-level agri-
cultuml enGineerinG (4 plawinGs, application of
fertilizers: N 50-30 k[r., P 30-6o and 50-100 kg K
per I ha, mcbmiized cultivation, area of mitri-
tion: 1.2-1-5 n between r,,.ws and 0.8-1.1 m in
row), 100-130 c/ha of L~mpes were obtained. Orchards
uccupy c. small section - fron 1 to 8-10 ha; the
Card 1/2
125

Country : A*Ji-'AX I P Z
Cateq,ory: Cultivated Plants. Fruits, Berries.
Abs Tour: R'WhBiol., ~o 22, 1958, No 100429
Y
1.%uthor: lo-)escu, Oprean, A. ; .!Pnolache, Tuta, V.
Inst :
Title : Behavior of Fr~;It Trees on 6--nde In thL First Year
After Planting.
OrI7, Pub: '1r%d1na, via ol l1vada, 1957, 6, Uo 8, 40-45
Abstract: Fro.--n the exnarience of ,!-rowins fr-1,it tre&s on
I
the sands In the south of Jltrznia C--l-.imanian
"cople's Republic), It follows that fruit trees
"anted In deep pits (depth of 1.2-1.5 meters),
~
p
rowth and the snallest
have the nost vlqorous q
percc-nta,ze of witlaerin-.- In the first year after
0
Card 1/4

Country : RU,'IANIA
CateSory: Cultlvat~-d 1:11ants. Fruits. Berries.
Abs Jourt R:'i2lol., ;,) 22, 1958, No 100429
(currant, raspberry, Zooscberry). There was
a 7ood rLrowth of the branches on the stocks of
17.1), alDond (105
--Arabelle (11 .4), peach (90.8),
unSrafted anricot, cherry. The stocks - dwarf
apple, quince, paradise apDle, near - proved
to be weRk. On the sands, different varieties
of fruit trace behaved differently. Sozo
developed very well: Anna Shpat, A3en, green-
q,a,,,e (plu-n), Rozovyye shchechkI (apricot),
--l~erta (oaach), Belyy naliv (apple); others -
-,Iddlin,T well: -)ar.r-en zolotoy (applo), Paviot
(apricot), a plu- variety Vinetc. Tho fruit
trees of -tortenzlyi variety (chcrry) withered.
Card 3/4

ATSOORY C,-:Itiv.,t~ja Fit :.t ii I t a -
JCL -~,l
'TT ME Vin-~ '-wic5 i i, tll~ FiL~-t Y-1--ir
Gr:,(.~.,- vi~ ,t ):N--,
r s v
.4r 5!
dww -h

N"I'lITi
4 T i 1,-C: OR Y
A -,. T: C, p
FFL r~
1T
a -:3 r
F). it
f r
Ike roaiot OP er4itft,
2/ 3

~PR~;~E ~enap lector (Bucaresti)
Concerning the mathematics teaching modernization in the secondary
schools. Gaz mat fiz 14 no.6:314-318 Je 162.