SCIENTIFIC ABSTRACT NEIZVESTNYY, I. G. - NEJEPSA, A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001136420009-5
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: June 21, 2000
• Sequence Number: 9
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

67403
On the Problem Concerning the Nature of the Surface BOT/181.1-9-27/31
Recombination Centers on Germanium
conductivity on the transversal electric field In the dark,
the interval between the two curves illustrates the value of
the steady photoconductivity. Measurements were mads on p-type
germanium easples with a resistivity o120-25 oba.ca. the
maxtaus pr*h*mt1aS_1*mpsraAur* we 475 g. Measurements were
oads in vacuum (10 torr) at 300 9. figure 2 above on a asai-
logarithmic scale the dependence of the maximum surface re-
c0ablastioa rate on the reciprocal sample temperature. The
activation energy of the centers, evaluate# from the 120112-
ation of the linear *a"* portion yields# - 0.2 *v,,thsir
maximum concentration In the saturation region v10 /as
When assuming that a concentration Increase of the recom-
bination centers is due to desorption of water molinules,
the adsorption host can be calculated as being 4.5 kcal/mols.
In the *ample* under isivestifation the ratio of the capture
cross sections for holes and electrons was ranging from
2 to 100, the recombination levels ranged between 3 - 6 kT.
The results obtained are utilised by the authors In order to
discuss their surface model of germaniu2 and in order to
Card 2/3 explain further details of the adsorption-d*sorption L~~

67403
On the Problem Concerning the Nature of the Surface SOV/181-1-9-27/31
Recombination Centers on Germanium
mechanism. The authors thank S. V. Pokrovskaya and T.I.Gal-
kipa for their assistance. There are 2 figures and 4 Soviet
references.
ASSOCIATIONo Fizicheskiy institut is. P. N. Lebedeva AN SSSR Moskva
(Institute of Physios imeni P. N. Lebedev of the AS USSR,
Moscow)
SUBXITTIDj April 6, 1959
Card 3/3

RZHANOV, A.V.; NOV(YrOTSKIY-VLASOV, Yu.F.; HEIZVF.STNYY, I.G.; FOKROVSKAYA, S.V.1
GALIWIA, Tolo
Nature of surface recombination centers in germanium. Fiz. tver. tela
3 no. 3:922-831 Mr 161. 1 (MMA 14-- 5)
1. FillebeakLy institut imeni P.N. Lebedeva AN SSSR, Moskva.
(Crystal lattices) (Germanium)

C/C
AUTHORSs Rzhanov, 1. V., ane Neizvestny,-, T. S,
TITLEs The influftnoo of molecule adq~ germanium upon ti-,e
parameters of the surface recomL.~ centers
PnIODICALs Fizika tvgrdogo tela, v. 3, no. -, -., 317-X323
3
TEXTj The authors have already published severa papers cn adsorption
effects. They have shown that the density f rpr)mblnation centers depend.
In a compensative and reversible manner on the p,Ilarlty of the adsorbed
molecules. The fact that the surface recombinatl~n senters are neutralizei
by adsorbed molecules could be explained on the a~t3Lmptlon of chemical or
electrostatic processes taking place between adL;~)rbent and re-ombination
center. In order to find out which possibillty reily holds, the authors
used a field effect method to study how thf, rp, )at nation parameters
when adsorbed water molecules are substitutel -~, ether or benzene. The
surface recombination rate, and the charge trapp,~-l by fast surface states
were recorded as functions of the surface potentiai. F,,r this purpose t,.e
germanium samples were placed in a mica holier wl!, tranqpar-nt
Card 1/
/-e>

S/.
The influence of molecule adsorption ...
providing a transverse field independent nf tt,! -11,,Id .,.ves~.'.a,el. -fe
whole arrangement was placed in a special thvra,-ilati, ve4sel. .-he --f,i
recombination rates an functions of the slirfar4t ent 1 al vw,, th it
without heat treatment of the specimens fir.3 ;. F I gs , L, . : ,
trapped negative charge was found to lncr~at3ft wi~f, c_~reas',z., Y 1r. F,
weakly non-linear mannerl after heat treat;-.- IcC' the i;.'re.bp xas
more rapidly. The maximum surface recomti:-*_ ted were four.-. ~ _e
between B20 cm/sec (3-4 kT/q, c. f. Fig. 1, - , ~mil%e_ ~3.0 K'~'I, : .1.
benzene and between 460 cm/sec (5-1. kT q) urA 21, -m/ser. f.2 K~lq, ly,
ether. From the experiments made with ben;,- was fuur-A it. 'he
nonpolar benzene the surface recombiniti,~r, t~r-! uct,-atel ir, tne
same manner as in vacuo and that the char% the rel.mbir_t.,~.
centers are in no way affected by benzene. wh,.2% _: vieE,';
polar, the surface recombination centers ai. ..~ei *...e sar#~ it.&.,
as in benzene or in vacuo. Adsorptiori of -:Ll,f: , u~j L, ki Ft.lf?
the maxima of Sk~Y
) (Fig. 1) from +3kT/q -, ai e f ~ t t, r. :.- -
a
vacuum) to + 6kT/q. The results indicate -al, aAb.-rp-,1_: -,. ~-!-
germanium is a phyijical process. Th~ Ptwc-en ether ani
Card 2Y
I

",,,lbl/61/003/011/010/056
The influence of molecule adsorption ... 3!02/B138
germanium in yurel.V electrostatic. There are 4 figures, I table, and 6
references$ 5 Soviet and I non-Soviet. The latter reads as followso
V. Lax. Phys. R*7-1 =, no- 5. 1502, 1960.
ASSOCIATIONt F141chookiy in2titut im. P. N. Lebedeva AN SSSR Moskva
(fhysloo Institute iseni P. N. Lebedev AS UESR, Moscow)
SUBMITTEDs gay 22, 1961
Fig. 1. Surface recombination rate an a function of the tiurfaoo yotential
befairo heating (1) and after heating at ~5001 (2), 400OR (3),
4501'OX (4) and 5000K (5) In other.
Fig. 2. Thi ease for benzene.
Card

296-09
ViL /Woooll'ooVoi9/034
V, IR rf IS, -q9 E036/E335
AUTHORS Novotskly-Vlasov Yu F nri(l Noizvestnyy I G
7 --'
TITLE- Apparatus for invest igat ing t he sill J ac e stat eS 0,
germanium
PERIODICAL Pribory i t ekhnikix ekspor iment a ii(j. 4 1)61
pp 127 - 131
TEXT, This article describes tlie cietho(I. --rid appazatus used
for studying "fast" surface states by a ;.umt)iriation of the large
signal field effect and the stat 2onary phor 8conduc t ivi t y metaods
The method of heating the sample up to 750 & by a current is
also described A qualitative account is first given of the
field effect method of varying the surface potential of the
sample by means of a capacitatively applied field This results
in moving the Perml level at the surface with respect to the
surface recombination centres By measuring the surface
recombination velocity S as a function of the surface potential.
information about the trap parameters is obtained. For applying
the field a metal electrode is used with a mica spacer (8 - 10
between the metal and the sample surface. Using a sinu5c,idal
Card 1/6

296,19
S/120/~1/000/004/019/034
Apparatus for investigating E0315/F335
voltage of 100 - 200 V it is possible to cover the --iurface
7 2
with a charge of 10 coulomb/cm Tile range ot surfeice
potentials covered Is 12 15 kT/q lk as the Boltzmann
constant, T is the absolute temperature and q tile electronic
charge). If the frequency Is in the range 20 - 100 cycles the
fast states are in equihbr lum at any instant whi Ist the slow
states do not screen the field. The large amplitude of the
pplied field makes it possible to observe a minimum in the
:
ample conductance Using Brown a method of calculation
(Ref. I - Phya. Rev. 1955 100 590) the 5urface potential
(PSis calculetted, together with the charge captured by the
fast states. By illuminating the spocimen with an alternating
light source, at a frequency which is riot a harmonic of tile
varying field, two field effect curves are obtained dark and
illuminated. The light intensity is selected so that the
electrostatic potential on the illuminated field effect curve
coincides with the dark curve. The photoconductivity 1.9 simply
related to the difference between the two curves at any given
Card 2/6

29609
S/120/61/ooo,,004/019/034
Apparatus for investigating E036/11335
potential and this in turn in proportional to the effective
lifetime. Assuming that the diffusion length is greater than
several times the sample thickness (h) . the surface recom-
bination rates on both illuminated and dark surfaces are
identical and making various simplifying assumptions, then the
effective lifetime rt eff is simply related to the bulk
lifetime To and the surface recombination velocity
- I I
G K-t off K Or 0,2S/h)
(4)
Here, K e(IAn+ p)R where p n IAp are the electron and
hole mobilities and R in the carrier generation rate at the
surface. To obtain the same recombination rates on both sides
of the thin sample, the field is applied to both surfaces,
using a transparent metal electrode to facilitate the illumination.
The sample holder of quartz is polished to a precision of 0.1 p
and a layer of tin oxide deposited by sublimation of the chloride
in air t 380 OC. This layer is 904/a transparent with a
Card 3A

29bll,;
S/12o/6l/(joo/oo4/o.l9/o34
Apparatus for investigating E036/2335
r existane e of 150 - 200 A-1 . The light source is varied a t
140 c.p.s. By using an intense source values or S up to 1.10
- 2.10 4 cm/sec can be determined, For calibration the lifetime
is measured by the photo-conductive decay mothod with the applied
field switched off. A block circuit diagram is given for the
iieasuring equipment. In addition to a generator for applying
the field to the sample, measured with a vaLve voltmeter, the
range of v. may be extended by using batteries The dis-
placement currents across the field effect capacitance are
balanced out by a simple bridge circuit. For thiazeason neither
and of the @ample could be grounded and it was necessary to
employ an amplifier with a balanced input The two ends were
connected through cathode followers to the grid and cathode
respectively, of the intput tube. From the anode the signal was
fed with negative feedback to an amplifier with a passband of
2 cycles to 2 megacycles and a gain of about 100. From tiers It
was fed to the vertical plates of an oscilloscope The sinusoidal
voltage from the field effect generator was fed to the
Card 4/6

226P9
5/120/61/ ~30/004/019/034
Apparatus for investigating E036/E335
horizontal plates through a phase-shifter The signal was
calibrated using a pulse of known amplitude An additional
feature of tho apparatus is that the sample is heated by passing
15 current through it and by this means the recombination-level
properties cart be measured as * function of temperature. An
advantage in that contamination from the hotter pnrts of the
apparatus in the usual method is avoided and lower temperature
contacts can be used. The nample temperature can be found from
the known variation of resintivity with temperature as the samples
are in the intrinsic range (28 - 32 a cm). Using a bridge circuit
to supgly the current the temperature is maintained within
I , 2 K uniformly over the sample length up to 750 0K. he
0ethod in particularly useful for measuring fast surface
recombination rates, as on silicon, and has been successfully
used in the laboratory for several years An acknowledgment
in made to L.V. Rzhanov. There are 4 figures and 4 non-Soviet-
block references (all English-language)- Ref I - quoted in
textj Ref. 2 - C.G.B, Garret, W.H. Brattain - Phys Rev.,
1955. 99, 376; Ref. 3 - J.R. Schrieffer - Phys. Rev 1955, 97,
Card 5/6

29609
Apparatus for investigatiag .... S/120/6.1/#,,:)/oo4/oj9/034
9036/2335
641, Ref. 4 - F.J. Morin. J.P. Maits, - Phys, Rev. 1954. 94,
1525.
ASSOCIATIONi
SUBMIrrED:
Fizicheskiy institut AN SSSR
(Physics rnstitute of the AS USSR)
August 3 1960
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NEJ~:DLA, H.; KHI.ZQVA, M.
IlInitiative of Agricultural LAborers and itationalizers in the U.J~ii", ~. 74G,
(Z.A 30CIALLTICKE Z--YZ-DEL3:VI, Val. 4, No. 7,18, July Auji. 1954, i~ratA,
Czechoslovakia)
3k): Monthly Wat of tAst European Accessions, (EFA-,, LC, Vol. 3, No. 12,
Dec. 1954, Uncl.

/I/, I ,
AWANT. S.; -XBJB=. Z.; TONDRAZOVA, 1.
*44
Orpolsation, of weads f or newborn; ewe of premature. Pedlat.
listy 6 nojilft-184. NW-June 1951, (CIM1 20: 11)
1. Of the Institute of Care for Mother a3A Child In Prague-
Podole (Director - Prof. J. Trapl), Read of the Pediatric
Division Docent K. Kubat, N.D.

NLMDU, =!Inkis
- MMMMMM~
Calmottization of prazature infants. Lek. obsor 3 no.1l1672-673
1954.
1. 2 Ustavu pro pool o matku a d1te, Praha-Podolt.
(DCG TACCIWIOU
premature inf.)

!,LQAL?TA MMICA Soc.? Vol.10/4 Fe-cUatrics APrU56
884. NEJEDL.A Zd. and ZEMAN L. Z. Ust. pro pt'& o matku a dltg, Praha. 11 Ino-
--Wi-jTa-c-e-HCL---Wrnene ph injckc'ni 166b6 penicilinem. Inocul tion of BCG
vaccine during penicillin injection therapy eSL.PEDIAT. 1955,
10/5 (380- 384) Graphs I Illus. 2
Following Lm. injection into the thigh of an unknown quantity of BCG vaccine, mixed
with, or in place of, therapeutic penicillin, a 14-day-old newborn infant developed
an illness. the course of which resembled extravisceral tuberculous primary infect-
ion. The course of the illness was benign, and characterized by early and marked
calcification at the injection site and in- ingi4inal and mesenteric lymph nodes.
Nejedll - Prague (VII, 15*)

NWEDLA, Z.
grperiences with the calmettisatinn of children with N-vaccine.
Rev. Csech. M. 2 n0-3:220-227 1956.
1. Institute for the Care nf Mother an4 Child. Prague. Directort
Prof. J. Trapll Head of Pandiatric Research: Doc. K. Kubat.
(TUBMZUT,OSIS, In Inf. & child
prey., M. tuberc. surinus vacc.. comparison with BCG vacc.)
(WCOBACTMUM TUB]IRCUT&OSIS,
wartmas vacc. in prey. of tuberc., cosiparison with BCG
Y'ac C *in child.)
(BCG VACCINATION. in inf. & child
co"rionn with K. tuberc. wArinus v&cc.)
(VACCINES AND VACCINATIONS
M. tuberc. awinus vacc. in prey. of tuberc..
comparison with BCG vacc.)

Irv -
ZJK~I, L. -, UMIA, Z.; LODINOU. R.
Use of AMR & cort isone f or infants. Cask. pediat. 12 no. 12 1108"1089
5 Doe 5 7.
1, Ustav pro peci o w&tkm a dite v Praze. redital prof. J. Trapl
vedoucl pedlatrickeho saktorn prof. K. Jhbat.
(AMR. ther. we
pediatric die. (Oz))
(OORTUOU, tbar. use
pediatric Ale. (09))
(PADIATM DWWU, %bar.
AM & cortisaw (Gs))

,'91JJRIA , Z. ; FUMDEDVA, 1,
Osmotic resistance of the loiftcytes in staplWlococcal infections.
Cook. pedlot. 14 no.8:715-720 Aug 59.
1. Ustav nro Poct o mtku a dite v Prase-Podoli, reditel prof. MUDr.
J. ?nT)I. ved T)edtatr. usaku prim. NW. K. Polacok.
(STAPRYLOCOCCAL DMWTIONI. blood) (ZALMDCTTM)

_WPXA"~~AMIOWA, J.
A comment on the technic of vaccination against tuberculosis.
Cesk.pedlat.16 no.1:54-57 Ja 161.
1. Ustaw pro peel o mtku a dito v Praso-Podolt. redItel doe. dr.
N. Vojta; Tyskown umtav tuborkulosy v Prase 12. reditel doe. dr.
R. Krivinks.
(BCO TACCIZATION)

AINOVA, R.; MECIR, M.; WEDLA,
Influence of the repeated atiminiatration of lipopolyv~qcbarides of
Salimella typ!Li nurimm on saw indicators of lmw=J ty dzi infants
In their first year. Rev. exech. med. 9 no.lslO-17 163.
1. Institute tfr the Care of Mother and QUld, Frague-Podoli. Director:
Doc. M. Vojta, M.D. Head of the Paodialric Depmrtmentt Doc. K. Polacek,
M.D.
(LIPOPOLYSACCRARlDES) (SALMONELL& TYPHIMMUM)
(ENDOTOXINS) IMMUNITY) (COMPLE14EM) (LEUKOCTTE cown)
(PROARDlN) ~ZSCHERICHJJA COLI) (ANTIODDIES)
(DOlUNIZATION) (BODY TFMF.RA7URE) (FECES)

NIMLA. Z HROMOKOVA, L.
Antibody, level against endegenaus strains of 9. coll from
b1 rth to 1 of age. 76sk. pe-llat~ '8 no,?,61J-6iq X1 '63.
y"mr
1. Ustav pro peel 0 mfitku a dite v Praze, reditel doe. dr.
Ho Vojta, vedoucl pedlatricksho liasku doe. dr. K. Polacok,
C.So.
(HSCHERICHIA COU ANTIBODY FORMATION)
MATTERNAL,FETAL EXCHANGE)
HEKAGGLUTINATION)
~

KLTWIA, Z.
Gamma globulins. Cook. podiat. 18 no.8:728-733 Ag 163.
1. Ustav pro peal o matku a dite v Pmze, reditel doe. dr.
M. Vojta, vedouci pediatrickoho usoku doe. dr. K. Polacok,
c3c.
(GAMKA GWBULIN) (AGAMMAGLOBULINEXA)

LODINOIIA,R.; RECIR,M.; NF.JEDLA,Z.; JOUJA,V.
Effect of repeated admirlstratlar of lipopolysaccharides r-n
various factors of immunity in infants. Cas.lek.cesk. 103
no.10:24n-255 6 Mr'6L.
1. Ustav pro peci o natku a d!- v Praze-Pod,-I', -,.,! l.-
pedlatrickeho vyzkumu doc.dr. K.Polacek, CS1.
w

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M. Voltm; vF-rl-)ucJ ,)c. 1r. K.

NWEDU, Z.; IMMADY'A'A, L.
Dove I opment -f itn' ' bod:s~e, a F",,* ',99.-,' - *
R. col I after -o pea ted acln:r. ifA I rFit' ;r of 7n-,7i~n is . -*-~,Rred
from the SaMFI WteT-Ial . Ces~. pfxiino . 20 nc.', ,3r'-16, :ri 'k q
1. Ustav pro F-ic:l n m, a Ita v Ersxe (zatlzTl -afl 'o. -
doe. dr. J. Hr,-3ky a verl~uc ' pt--d . ~i~-r. :,(~e~hr vTzkimi; - ~( - . :_- .
K. Polneek. GS-:. ',.

L ~hQh~-66
L CODEt CZ/003716 - -h- 0/0062,
Ad Nw- UW25482 SONIC, 6Tbooldo 1006
AUTHOR: -1.cj2d3,y, Monek
MG: A*,-S, Popov Itosearah Irotitute for Comwdoationt a Prape (Vyzk=W,
ustay pro-weil-ouc- tedifflm- X, S. roja~va
TITUt Condition of a lossfM Wdium it
SOURCE: Ceskoolovens)W casopis pro fyviku, no. 1, 1966, 60-62
TOPIC TAGSt ardsotropio medium. electromagnetism, coordinate system
ABSTIUCTs Tho article presents a derivation of the relation between individual con..
pononts of the tensor pL in a norworthogonal system of coordbiates which follovo from
the conditi that the adium under consideration be loss-free* Orig. art. hast 9
forma&3 a ?A i 35.38U
SUB CODBI 20, 12 1 suBm DATKs 13jui64 / sov Rut ooi mH REF. om
cmd

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ACC NR- AP60-2787-0 - --- ---- 30MCE CODE: (,Z/00311/66/(,,A)/003/OC)99/OC)99
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AU`T1HOR: Nejedly, Zdenek--Neyedly, Z.; Filip, jiri--Filip, Y.; i.K1, Jirldricn--Ekl, Y.
ORG: Institute for Investigation, Production and Use of Radioisotopes, Prague
(Ustav P-r--o-v-3-rz-i=-, vyrobu a vyuziti radioizotopuj
TITIZ: Investigation of the tagging of organic compounds with radioisotopes.
Preparation of adenine, guanine, uracil and cytosine tagged with C-14 (U)
SOURCE: Jaderna energie, no. 3, 1966, 99
TOPIC TAGS: radioisotope, radiation chemistry, chemical synthesis
ABSTRACT: UVVVR Report No. 42/1964. named cumppunds were prepared by the acid
hydrolysis of ribO5ide-5'-monophosph& r ribosideY tagged with C-14, under such
conditions that ribose-C-14(U) also d be obtained. The radiochemical purity of
the obtained compounds was 98%. Thf. ducts are or importance as intermediates for
the synthesis of C-14 desoxyriboE-.F. -ti -ch wi-- be prepared. (JPfL 36,8451
SUB CODE: 07 / SUBM UTE: r c.
Card 1/1/, UDC: 547.02
404V77 -

W.MW, V. v 92 9 A.
Fine tornift of smU holes by sintared carbides. P. 147.
STROJIFOSKA VTROBA, Praha, Csochoslovskia# Vol, 7. no. 3. 1959
Monthly list of k~wt European Accessions (MU)p LCj Vole 8, no. 7,
July 1959
uncla.

AUTHOR: Nejedlo, V.
21389
Z/031/61/(>09/006/001/DC2
DOO?/D1O2
TITLE: Machining of high-temperature and heat-resistant allo7s
and highly alloyed steels
PERIODICAL: Strojirensk6 v~roba. v. 9, no. 6, 1961, 288-291
TEXT: The article lists some results obtained in the USSR with the
use of high-temperature and heat-resistant alloys and highly alloyed
steels, especially in regard to their machinability, suitability as
cutting 'tool materials, and angular configuration. The chemical
composition of Czech and Soviet high-temperature and heat-resistant
steels iS shown in the following table;
Poldi AKRN El 612 Poldi AKND
C 0.4.2 0.12 0.08
Cr 15.0 15.0 20.0
Ni 36.0 35.0 58.0
Mo - - -
C0 - 16.0
Card 1/4

21389
'L
Z/031/61/009/006/001/002
Machining of high-temperature..- DOO?./DlO2
Poidi iMN El 612 Poldi AKND
Mn 1-5
Si 0.3 -
W 3.0 3.0 -
Ti 1.5 1.3 2.3
Cd - - -
Al - 1.3
The criteria for the division of the metals into individual machina-
bility groups are stated in the instructions MTS-N-A 43 and MTS-N-RP
4, issued by the MTS (1955, 1956). According to these criteria,
highly alloyed austenitic Cr-Ni-Mo-(Co) steels fall within machine-
bility groups 6b thru 8b; high-temperature Ni alloys fall within
groups 4b thru 7b, depending on their chemical composition and heat
treatment; Co alloys fall within groups 3 thru 6b, primarily depend-
ing on whether parts are formed or cast. Regarding the material for
cutting tools, sintered carbides of the S-series are suitable for
machining high-temperature and heat resistant steels. Under normal
conditions, S 1 or S 2 sintered carbide is suitable for finishing,
Card 2/4

21389
Z/031/61/009/006/001/002
Machining of high-temperature ... DOO'?/DI02
and S 3 or S 4 sintered carbide for roughing. The H I sintered
carbide type was found to be most suitable for machining Ni and Co
alloys with very low Fe content. Where sintered carbide canliot be
used, Poldi Maximum Special 30 (CSN 19 854) and Poldi Maximum Spe-
cial 55 (CSN 19 855) high-speed Co-steels should be used. Tools for
machining highly-alloyed, high-temperature and beat-resistant steels
and Ni alloys should have face angles I = 10 - 15 when made of
high-speed steel, and 5 - 10 when made of_siq ered carbide; for
machining cast parts, lace angles should be 6 10 for high-speed-
steel tools, and 2 5 for Bintered carbide tools. Recommended
back angl8s are: at 7 - 10 for high-speed-steel tools and
Ot = 6 - 8 for sintered carbide tools. For cutting Co alloys, tools
must have stronger cutting edges ai;d, therefore, smaller face and
back angles ( f - 0 - 6 ;0L- 5 - 6'). A cutting speed of 12 - 40
m/min is recommended for Ni-alloys, e. g., the US Nimonic 80, the
Czech Poldi AKNC, and the Soviet El 437. To achieve economical
machining results, the following conditions must be maintained:
Maximum rigidity of the machine- tool - viorkpiece system, contin,,ious
tool infeed; and not more than half of the conventional permis-sible
Card 3/4

Z/031/61 09-3e9 /
1021 /006 '001/0C2
Machining of high-temperature ... DOOVD102
value of cutting-edge blunting, which should not exceed 0.25 - 0.40
mm. There is one table.
ASSOCIATION: V~zkumn.S U'stav obrAb6cich stroj6 a obr6b6nf, Praha
(Research Institute of Machine Tools and Machining,
Prague).
Card 4/4

COW. Brvia. NUDrj WTIL. Svat.. NUDr-. Ila=. T.. NUDr: Y=OTA, I..
WjDr
Rearing gains following atticeantrotomy. Cook. otol&r. 3 no.3:128-
137 Avg 54.
1. Zotal&ryMolWcko kliniky TU v Rradet Kmlove
(MUNING Duamm. surgery
attikomtrotoW, eve,luation of results)

HZ"DIO. Veroulav NUDr.
Treatment of &cut@ inflamnation of sinuses by hot baths applied to
the arms. Gesk. otolar. 7 no.1:46-51 Peb 58.
1. Otolaryywoloeicka klinika VIA JNvP v riradci Kralove.
(SIMM ITIS, ther.
hot baths of arms (cz))
(HTDROTFUMPT, in var. die.
sinusitis, hot baths of arms (Cz))

liz~,10.Jer~_t4lav*, NDVAK, Jan; MDRHON, Miloolav
Results of surgical therapy of laryngeal carcimom and the influencing
factors. Cook. otolar. 7 no.6s368-376 Dec 58.
1. M kliniks ZU . Hradec Xralove. prodoosta prof. NUDr. Jan HybRoo.
Pntologicko-ankstomicky ustav KYJ. Hradec Kralove. Drednosta prof. WDr.
Antonin Tingerland. V.V.. OIL klinika th, Hradec Kralove.
(LAVIM. nooDlaomo.
gurg., voston. results & influencing factors (Cs))

NSJXDI,O. V.
-----P-0-G-8*lblllty of a conservative repair of mesotympanic perforation of
the drum. Cask. otolar. 8 ao.4:222-228 itug 59.
1. KlInika nemooi usnich. nosalch a krcnich lek. fnk. KU v Hradcl
Krnlove, pre-inouto prof. WMr. Jan lWbusek
(A", KIMU, die.)

NZ=LGj Veroslav
Long-term functional and anatonical results of andomatal myringoplasty.
Sborn. ved. prac. lek. fak. Karlov. univ. (Hrad. Kral.) 4 no.1:61-68
161.
1. Katedre. otorinolaryngologie; prednosta prof. Dr. Sc. 14UDr. J. Hybasek.
TD(PANIC MDMRANE surgery)
SKIN TRANSPLANTATION)
DUFNWS surgery)
~

- INMDLO, Veroslav
Gonservative therapy of memotympanic perforations of the eardn=.
Sbom. ved. prac. lek. tak. Karlov. univ. (Hmd Kral) (Suppl) 4
no.5t435-468 161.
1. Otarinolaryngologicka klinika; prodnosta prof. DrSc. l,.LJDr. J. Hybasek.
(FAR MIDME) (WOMIDS AND INJURIZS)

NEMLO, Veroslav
Simple endomeatal uTringoplasty. Cesk. otolaryng. 11 no.3:166-173
162.
1. Otolaryngologicke, klinika lekarske fakulty University Karlovy v
Hradci Kralove, prednoota. prof. dr. J. Hybasek, DrSc.
(TYMPANIC MEMRANE surgery)

NEJEDIA), Veroalav
Myringoplasty with cooled skin autotransplants. Sborn.ved.
prac. lek. fak. Karlov. Univ. (Hrad. Kral.) 6 no.3:SupPle-
ments385-389 963.
1. Otolaryngologicka klinika; prednosts doe. MUDr. L.Faltynek,
CSO.

VE.TZDID,V.
Fresh twd preserved skin grafl* for myrlngoplast7. Cesk.
otolar7ng. 12 no.6t379-381 D'63.
1. Otolaryngologicka klinika lekarske fakulty KU v Hradcl
Kralovo; prednosta: doc.dr.L.Faltynek, GSc.
41

f,'EJ ED141
L.-~
Our experip-rce3 wlt~, I !astir E21T surgery. Cesy. I - ~ arT. 9.
14 no.2198-103 Apl~.5.
I. Otnl FtTyrlf-rrllCjffI(-.ka k.1 ii, '~ . I - ~ftroke fakul ty Kit; I VJ. ':7 1-
vorsity v IlraAr' Krnlove (I roji~o: tat doc. dr. L. Faltp.nk, ':Sc.).

ZIEJEDLO, V.
klaatic 7- ji~ecl I in )f teal na-la, vq,'-Ill~m and fMf,tIC-r;F-ll7 03th6tUl
Ilasal ope'raticiie. Cesk. otoleu-yrij,. 14 tic.-ctI08-112 APIO.
i. ~.Ili Ae fak-ulty Karlc)vj
Unlv-.+rsl4-y -i R-Rde i Kralci~ :;,a, dr. L. Faltynek,
cs.~. ) .

MJMELY, A.
Effect of flow on the natural purification of strnams. ., .02. (V-rirl Hosro,~a-stvi. ~raha.
No. L, Aprl. 10c'7.)
Sc~: Ponthly List of k-ast Ll~ropean Atcessions (~:EAL) LC, Vol. ~, n-. 7, Jul,,, 101-7. Incl.

N&JEEDLY, A' .
De ~.e m in I n g t h e rut gn i t ude o f wa ti- r i n f 11 t r2 t i -~~ n a nd I p a k a gm I n t'., -, P -.a- r.,; . -'. ~0' .
(7oda. Vol. 36, No. . Feb IQ57, Praha, Czectoslryvakla)
Month'-y Ll t of East Eur~D-pan AcC~53'-'I,n,4 (ELAL~ Vol. 6. - . -' , , - i,- I .' . ' nc - .
SO:

I
tj,~- -TtF- -17 -/ 017
TIEMADLY. A. [NeJedly, AL.J. Insh.; PILITS, 1. [Pelc, 1.1
of cu"ent on the kinetics of Pself-purificntion. 31p. I
inn. 23 no.11:59-67 N '58 (MIRA 12:8 )
1. Iz VodakhozyFtyatvenncwo nauchno-issladovntellallcogo instituta
(Prne,n-Podbabn. ChekhoslovakVn)
(WATIR-PURUICATION)

NEJEDLY , A. , Inz.
Production of detergents removable by biological treatment
in the German Federal Republic. Vodni beep 14 no. 1:14 164.

Y&MLT, Bedrlch; IOUSTAL, Antonin; PADVNT, Kiroalav
New urine test. Cas. lak. cook. 97 no.22:6R9-691 30 way 56.
1. Ustredni laborator OUNZ v Kladne, nrednosta Mr. Redrich Mejedly.
R. N. . Iladno, OMM.
(URDM
urinalyaiq, new technic (Cm))

N&JOLY, GOITArII-. J.
"Plasticizers for poljrvinyl chloride; properties of linear tetraestpr3."
p. 438 (Chemicky PrurVsl) Vol. 7, no. ~. Aug. 1957
Prague, ~;zechoslovakia
SO: Montrily Index of ~-ast &uropean Accessions (EUI) 1--. Vol. 7. no. 4,
A: ru 19~8

CZECHOSLOVAKIA,'Challcal Technology - Synthetic Polymers. H-29
Plaotics.
Abe Jour Ref Mur - Khimiya, Nr- 24, 1958, 63485
Author Major, J.,_~ecU~y, E.
Inst
Title The Viscous-Elwtic ProperLics of Polyvinyl Chliride
Which has been Plastic'.zed With Dibutylphthalatc, Dioctyl-
r~ithaiate and Dioctyladaptnatc.
Orig Pub Cham. Pmu:Wsl, 1958, 8, iio 1, 41-44.
Abstract Results are cited f-)r a study cn the therm-mechanical
properties of polyvinyl 61l:xide plasticizers by the rip-
plication of the creep curve acccrcling to Tobol'sky
(R.Zh. Khim., 1956, 5465o).
Card 1/1
51 -

Aj G, c.;,>
amp,
low an
.MEW$
.qF- M

63BU
Z/oog/Wooo/olO/002/003
-~-2j 0 9112/2353
AUTHOR: NeJed1j, tmil
TITLE: ii-r9i ~0~~opoand Plasticisers on Properties of
Polyvinylcliloride ~~,
PERIODICAL.- Chemicki prfimy9l,
1960, No. 10. PP. 545 - 549
TF.XT: The work reported herein is an investigation of the
problem as to whether it is possible to predict the properties
of plasticised polyvinyl chloride from the properties of the
individual plastisizer used simultaneously or whether it is
possible to choose a mixture of plasticizers in order to produce
specified properties of the polymer. The problem was studied
in detail by Wartman (Modern Plastics, 32. 139, 1955). who has
shown that the properties of mixed plasticiser compounds are
related in a simple manner to the concentration of the
individual plasticisers and to the value of each of these same
properties in compounds containing the individual plasticisers
His method for predicting the properties was shown experimentally
to be applicable to brittle temperature, SPI-volatility,
plasticiser rub-off and nitrocellulose marring. Wartman used
a graphical representation of compound properties and it is the
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83843
z/ooq/6o/ooo/olO/002/003
9112/9353
Zffect of Compound Plasticisers on Properties of Polyvinyl-
chloride
object of the present paper to extend Wartman's work to the
prediction of the effects of compound plasticisers on
1; solvating effect; 11; tensile strength and extensibility,
III: resistance to low temperatures: IV; volatility and
V: water absorption and weight-loss by water extraction Methods
for determiring above physical data are described. solvating
effect of the compound plasticizers was established by measuring
the temperature RT of solution of polymer in the plasticizer.
A 10%, suspension of the polymer in the plasticizer is heated with
constant stirring until the suspension becomes clear. The value
of RTis a measure of the stability of the system.
plasticizer-.polymer. Tensile strength and extensibility werp
determined by means of the tensile testing machine of VEB-
Werkstoffprflfmaschinen, Leipzig. Resistance at low temperatures
was tested according to ASTM D 746-44 T. Vollatility was deter
mined by the activated charcoal procedure. (Draft Proposal
ISO/TC.61/W.G. 6/104. The greater part of the present paper is
Card 2/5

83843
Z/009/60/000/010/002/003
E112/E353
Effect of Compound Plasticisers on Properties of Poly-vinyl
chloride
devoted to the study of solution temperatures of compound
plasticizers. It is shown to be an additive property of the
individual plasticisers and to show linearity when plotted
against plasticiser content. This relationship can be also
expressed by equation:
RT = a RTA + b RT 0)
where RT temperature of solution of plasticiser mixture.
RT A' RTB temperature of solution of plasticisers
A and B .
a, b - fractional parts of plasticisers A and B
in mixture.
The above equation can be also used to compute temperatures of
solution of multicomponent systems. However. the author
suggests using a graphical representation. Thus, for a three-
component plasticiser system the use of a triangular coordinate
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8380
z/ooq/6o/ooo/olO/002/003
E112/E353
Effect of Compound PlaBticiBers on Properties of Polyvinyl-
chloride
graph is reconimended. Similarly to the method adopted by
Wartman a linear relationship was also confirmed for
plasticiser-composition and tensile strength and resistance to
low temperatures, respectively. Volatility and water- absorpt ion
have also been shown to be additive properties. The author has
computed the composition of a three-component plasticiser mixture
for a polymer which was to have certai2 specified properties-
1) minimum tensile strength 200 kg/cm .
2) resistance to low temperatures in a temperature range below
-270C. 3) volatility not to exceed 0%, 4) water-absorption
approx. 10%, 5) temperature of solution RT. not to exceed
105 OC. Computed and practically measured values are tabulated
showing very good agreement.
Card 4/5

838"13
Z/009/60/ooo/olO/002/003
9112/E353
Effect of Compound Plasticisers on Properties Of Polyvinyl-
chloride
There are 7 figures, 2 tables and 6 references; 5 English
and I Soviet.
ASSOCIATIW Vyjzkumni x;stav makromolekul&rni chemie. Brno
(Research Institute for Macromolecular
Chemistry, Brno)
SUBMITTED: February 16, ig6o
Card 5/5

20957
G/004/61/008/003/003/006
5'1~ 2ZO 22o3 B120/B206
AUTHORSs Nojedly, E., and Gottweis, J.
TITLEt Plasticizers for polyvinyl chloride. Properties of
linear tetraestors
PERIODICALs Plasto und Kautachuk, v. 8, no. 3, 1961, 125 - 127
TEXTs Linear saturated tetraosters were studied with a view to their
suitability an plasticizers for PVC. The totraosters were prepared accor-
ding to Eq. (5), 0
2 R0dCR2Cl + NSOWON& ---ORJCR 2OhICH 2ICOR - 2 N&C"
at 100 to 1200C In the presence of tri(n-butyl) amino as catalyst. The
reaction mixture was rinsed with water after the eaterification reaction,
and the totraostors were distilled at a pressure of from 1 to 2 mm Hg.
The following investigations were made concerning the suitability as pla-
sticizers (as* Tables 1 and 2)1 for evaluating the compatibility of the
plasticizer with the polymers, the temperature, at which some granules of
PVC dissolve clearly in the specific tetraester (column 1), was deter-
Card 1/6

20957
r./OO 61/008/003/003/006
Plasticizers for polyvinyl B120YI206
mined under the microscope by means of Kofler's heating block. Polls with
a content of 33% by weight of plasticizer were observed for a year to find
out whether an exudation of the plasticizer took place (column 2). The
volatility was evaluated by determining the boiling point at 4 ma Hg (co-
lumn 3). The plas~Jcizing effect was evaluated by determining the tensile
force in kg per on of initial section, which was necessary for a 100%
elongation of the specimen (0.5x2ft125 mm). This was done on a strength
tester of the VED Werkstoffpriifaaschinen, Leipzig (State-owned Plant for
Test Machines, Leipzig) (column 4). Resistance to cold was determined
according to ASTK D 746-44? (column 5). Tests were conducted with 0.5 mm
thick foils from two parts by weight of PCU-Q and one part by weight 'g
plasticizer, which were produced on a two-roller calander at 150 - 155 C
and a rolling time of 10 min. From the tables it may bq seen that the
plasticizing properties of the tetraesters I-III and VJC~IX, respectively,
improve with increasing length of R and RI (see Eq. (5)). However, after
reaching optimum values, they deteriorate again with increasing chain
lengthe V, 1. Cyclic R and RI did not produce good properti*sj V-1, XI.
With its properties, IT steps out of the homologous series of tetraesters,
since amyl alcohol of fermentation was used for its synthesis and the
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G/004/67008/003/003/006
Plasticizers for polyvinyl ... B120/B206
branched amyl groups had a detrimental effect on the properties. The-low
solution temperature of VII is explained by the low thermal stability of
this tetraester which decomposes when the solution temperature is deter-
mined. The following tetraeater shows therefore the best plasticizing
effect for PM 9
CH3(CH 2)3 OC(CH 2)4J(CH 2)4 L(CH 2)4 L(CH 2)3 CH 3'
The four eater groups cause good affinity to the polar PVC, the active
centers of which are blocked in this way. The interposed paraffin chains
warrant good mobility of the molecule. The original article was published
0
in the periodical Chemickf prumysl (Prague), V. 7 (32) (1957), no. 8p
438-442. There are 2 tables and 9 referencest I Soviet-bloc and 8,non-
Soviet-bloc. The 2 references to English language publications read as
follovai Reed, M.C., and Hardin, J., Ind. Engng. Chem. v. 41 (1949) 6751
Lawrence, R.R.9 and McIntyre, E.B., Ind. Engng. Chem. v. 41 (1949) 689.
ASSOCIATIONt Research Institute of Macromolecular Chemistry, Brno,
Czechoslovakia
Card 3/6

0/004J6!/008/003/003/006
Plasticizere for polyv.lnyl ... B120/B206

ow .4
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20957
0/004/61/008/003/003/006
Plantioizorn for polyvinyl B120/B206

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krm-11 16h.

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Card 5/6

20957
G/004JO/ooe/003/003/006
Plasticizers for polyvinyl ... B120/B206
Legend to Tables#
1) Solution temperature, 2) exudation of plasticizer, 3) boiling point
at 4 mm Hg, 4) load factor with 100% elongation, 5) resistance to cold,
6) molecular weight, 7) after 79 24, and 48 hr, respectively, 8) does
not exude.
Card 6/6

,~, t;, -1 -
0~.- 17 1 J.
Servicing the MA-'-~O tLre3hIng imcidnq. ).2,1
0-linisterstvo zemedelst-,I~, Pral.a. ~-Publlcvtion on Qec),,niz, i,,)r, -,,'
issued by the Ministr-I of AgrLcult~ire. 3o-ini-montl.l:~//
7o1. ~ , n,:.. U, July 1055
Sa-RCE: East European Acc553i.ins Lint( Library ~jf ~:undress
701- 5, No. 1, Jbnuary 11)56

downphian d ;;w
7. 1 so p1me.
Gisswav, An kunrif
lot;:r
Mm 42, IV:,,.
hAve 11irtallso-d a
faymd mdbW kv sivig H in .1"I An wokkimposts at hut
limme mwfwv .4 thor -AHIIIIC 1. ttgopwd fut a defiloir 1111n
:. thr arlinn -4 IICI The ~wjvsus #~- Are PA--,I into A
Woo, cwmta ;,dij --viw -in 4 fkNw4hvI-j#-pbrnyIrr~16-
4m#m kkw Alt" ~Maul a filtbr FrO, thr -km
mWev"I M 11wit"Ki Was, 11.1 41"1 numor Is". 0.6. 1.-
qiwwl I'm thr m4misms of If,% 111811 04. .141.1 M th-wid
"tel ImIx-i tbe eva6tism if 11.9 1. vety ittv-SuLa tf . ..i
I he amm lwwm 6 rmwhrd that 1h, 1A.1uWbrunwim 11.11m.i
-od G nd I tAk" M-Wr 118W OU" It" loot,
&~ r-(*"r,.

ZA"401.40"AwIfewo
2973/6"1F
AMORS j Mandl P1. , onltk_~~~41jjL_ ~J
TITLE t investigation of the conditions for manufacturing steel
of the highest purity (concluding report)
PERIODICALS Hutnicki,liety, no.1, 1963. 74
TEXTS Followin earlier investigations of "complos"
deoxidation of steel in laboratory teats% the authors verified
under full-scale-conditions the correctness of the optisiSsm chemical
composition found for the complex deoxident alloys containing Cat
Mn, Sit Al i.nd Mgt by determining the best method of final
deoxidation of the steel 6SW 15230 to ensure a high degree at
purity of the steel. The results of the full scale toots were used
to evolve a recommended production sethod for steel ESP 15230 by *
the duplex process. The report also contains results of full-scale
tentm carried out to doterulne the influence at complex d*oxldatiom
with alloys of FeCa5i and FeCaMSSI on the purity of the special
steel T 0.8.
(Abstractorts notes Complete translation-]
Card 1/1

I , . , . . ~ . I '. . - ~ I.. I . . " - I . -1 :,~ . .
I I . I . I I j - ".

fl 1? - 7 2-7 /Y 7, /'
!~~WSTRAUB, Robert
Spontaneous spindle call sarcom in guinest pigs. Seoplasms, Bratisi.
4 no.4:402-404 1957.
1. Staatliches Institut fur Heilmittelkontrolle. Praha.
(SAR -ON-J, nnthaj.
spindle cell, spontanswas of connective tissue in guinea
pig)
(GOKMTIU TMU72. neoplasm
spindle call sarcoma. spontaneous in guinea pig. pathol.

NEJEDLY, K.; KOZJAK, V.
Biological evaluation of stilmilants by meazw of the leukocyte tect.
003k. farm. 11 no.6:315-320 JI 162.
(LEUKOCYTE COIRIT pharmacol) (DRUG TIMWY)

:11-1 C'. V)
ca! a:-. E,
:3 W-

N=LY 9 L.
TaWcs of the nwhinery industry In the development of the production of
buildIng naterials. p. 147.
STATITO. (Mlidsterstvo stavebrdctvi) Praha, Csochoolovakia, Vol. 37,
no. 5. ftw 1959
Monthly 11st of F4wt European Accessions (EEAI),, Ws Vol* 8. no, 7.
July 1959 uncla.

".
The use of rect If I ers, in operat! -ig exct t-rs ~f "I ari:r, r-chr -,~* )rr.
r. 22T (e.;Iektrotech-iik) Vol. 12, -io. 7, July 1-~- , lra~a, Czr~choslov 1-ij
SO: '-'r~4711LI 1'~D X " --':,3-. ;,," A" S' -1 - .' '.-.Al)-C, *!'I.'-,"'.

88254
z/oO/0/09/002/001/001
,9,25zlo (/,0;-0/ /a 9073/9535
AUTHORS% Nejedl/, Milos Engineer and Kuba't, Milan. Engineer
I y
Candidate of Technical Sciences
TITLICt Large Power Rectifiers Manufactured by CKD Prague
PERIODICAL: tiektrotechnick' obzor, 1960, Vol.49, No.2 pp 74-82
y
TEM The article is intended as an overall report of the
present state of development in the fields of mercury arc rectifiers
and semiconductor rectifiers. In 1959 &D began the manufacture
of a now typo of single anode, air cooled, mercury arc rectifier
with continuous evacuation. The rectifier is of the excitron
type, UI-303. Its design was governed b5 the following considera-
tions: a) the rectifiers should have such parameters that it should
be possible to utilise then universally and economically within
wide ranges of power and voltages between 660 and 3300 V, b) it
should be easy to disassemble the tank and to repair the rectifier
on the spot; c) it should have a small floor space, simple auxiliary
circuits and it should be possible to operate it automatically or
by remote control; d) high reliability and efficiency. The
rectifier consists of six single anode tanks, arranged in a
circle on a stand with a central axial fan and a simple circuit
for di;4ribution of the cooling air, The rectifier in fitted with
Card I

88254
Z/017/60/049/002/001$/001
Large Power Rectifiers 9073/Z535
a continuously operating air cooled mercury vacuum pump, an
automatic mercury seal in the high vacuum suztion piping and a
large pro-vacuum vessel This vessel is evacuated by means of a
rotary oil pump at intervals of several weeks, thus simplifying
maintenance considerably. This rectifier corresponds to the
following ratings according to 6SN 351510:
66o v 2000 A 1320 W over-load capacity "A"
825 V 2000 A 1650 kW to it IIAII
1650 V 1250 A 2060 W of to #test
3300 V 1000 A 3300 kW of to 11BOO
The design of the vessel has several now features, a croon-sectiaml
sketch is reproduced in Fig.3 The main anode is not placed in
the tank but in a separate anode vessel, As a result of this, the
considerable thermal losses of the anode do not heat the condensa-
tion surfaces, which control the pressure of the mercury vapours
in the vessel and thus influence the operation of the rectifier.
Consequently, the anode vessel can reach temperatures up to 2000C
and, as a result of the high thermal gradient, the cooling intensity
will be increased and therefore the dimensions of the rectifier
Card 2/8

88254
Z/017/60/049/002/001/001
Large Power Rectifiers 9073/9535
can be reduced. This new anode design has simplified also the
manufacture and assembly of the control and deionization grids
as well as of the screens. All these are mounted an a single
assembly in the only part of the cathode which can be taken apart.
The mercury of the cathode is very efficiently cooled since flat
steel cathodes are used which are fitted with large cooling ribs
The cathode insulation is an enamel layer covering the cathode
ring which in welded onto the bottom of the vessel, For intensive
cooling of the vessel itself, tubes are used which pass through
the vacuum space of the tank; this enables reducing considerably
the tank dimensions. Prototypes of this rectifier have proved
satisfactory In operation over several years. The development of
sealed mercury arc rectifiers in proceeding in close cooperation
with the All Union Electrotechnical Institute imeni V. I Lenin in
Moscow. Two types have been developedt 1) an air cooled single
anode type,designed primarily for stationary and mobile traction
rectifier stations with ratings of up to 4000 kW at 3 3 kV operating
with six anodes; 2) single anode water cooled type, designed
primarily for operation on single-phase 50 cps locomotives and in
heavy electrolytic plants. Both these rectifiers are of the
Card 3/8

88254
VoO/6o/09/002/001/001
Large Power Rectifiers E073,,E535
ignitron type. The tank can be made without insulating the cathode
which simplifies the design considerably, see sketch Fig.4.
CKD, Prague to now faced with the took of compbting the development
and introduction of series manufacture of sealed ignitrons for the
highest ratings. Basic work on the development of germanium and
silicon rectifiers was begun at the 4eakoslovenskA akademie Y4;d,
Ustav tochnicke' fyziky (OTF) (Czechoslovak Academy of Sciences.
Institute of Technical Physics) in 1949. &D, Prague utilised
those results and from 1958 onwards they started their own,
development of silicon rectifier cells and rectifiers SVUSE,
Bechovice participated in some of the tasks involved in developing
semiconductor rectifiers, There are a number of Czech patents
relating to germanium and silicon rectifiers and the standard
achieved in Czechoslovakia compares favourably with that achieved
in other major industrial countries. The inverse voltage of Czech
produced large germanium cells reaches 300 to 400 V, which ensures
a two to threefold voltage reserve in the case of operating
voltages between 100 and 150 V per cell. Cells are being produced
for ratings of 100 and 200 A, in the field of rectifiers, units
Card 4/8

88254
Z/017/60/049/002/001/001
Large Power Rectifiers 9073/9535
are being built with ratings between 25 and 300 kV. Silicon cells
are being produced on a pilot plant scale and inverse voltages of
1000 to 1600 V were achieved for currents of 105A/cell. In 1960
the first rectifier unit of 450 V d.c., 5000 A, was put into
operation for the electrolysis of chlorine. This will be adopted
as a typical unit for lorgor rectifying equipment, 25 kA, 325 to
650 V for electrolysis of chlorine or aLuminium. Silicon
rectifying units are being developed for ratings up to 3000 kW.to
be used in &.c. railway traction, a prototype of which is to be
built in 1961 UVIL Locomotive). A particular feature is tht
t
chnology of preparing the single crystals, which are manufactured
b 6KO, Prague (25 to 30 am dia. for germanium and 18 to 20 mm dia.
;
for siliconk Due to the fact that Czechoslovakia does not have
available the high purity silicon required for rectifiers, zonal
suspension melting is applied, not only for purifying the material
but also for growing the single crystal. IFor the time being
preliminary chemical purification is entirely dispensed with, The
repeated zonal refining has been automated. During this process
* H
0 atmosphere)
boron in also removed (by zonal fusion in an H
2
2
High frequency heating in applied. Repeated zonal refining (about
Card 5/8

88254
Large Power Rectifiers Z/017/60/049/002/001/001
E073/2535
30 times) produces the desired purity and following that zonal
fusion apparatus is again used for drawing silicon crystals of
18 to 22 mm dia. During l9bl to 1965 &D. Prague is-to increase
its annual production of semiconductor cells from 14000 to 50000
approx,, corresponding to an increase from a total capacity of
140 MW to about 500-700 MW rectified capacity in 1965. The cello
will be used primarily in the chemical and metallurgical industrieg.
mines electric locomotives, tramways etc. There are 13 figures,
2 tables and 23 references; 13 Czech and 10 non-Czech,
ASSOCIATION,, 4D Praha n.p. (CKD. Prague)
SUBMITTM November 14, 1959
Card 6/8

N?;.7,F:'L.Y, M.1108, Inz
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IRMLY, Hiroolav, drol SIMON, Fractiaek, dr,
.
..... NaLlrAmmmo-M, - -a
Dsaiding of 1ALbor disputes in enterprioeso Prace msda 11
no*6&291--294 J* 163.

IIEJULY, MIroslav, dr.; RIAKOVA, Hed&, promoVana praynicka
Pqr~icipation of' the Council of the Trade Union Movement in
civil procedure. Prhce mzIa 12 no.9:477-431 3 '64.

.N-Z~DLY, R.
-!!Wpr~
.,-npriences ,dth li,i ~i !-m,~ . re --q,.;I-re-)t
p. z~24 (1-lechanisace Zp-meJplstvi) 'lo-.. -, -in 1' , 3eyt. !, - Cz-ch-.7'.
SC: Monthly Index of Fast i~urojean Accesnions ~ -. Al) LC, V-)l . -, no 1, Ja~,. I P

JEJULT, VUdimir, dr.
PIAWAW building material transportation, Doprava no.4:300-
303 63.

WIDLY, Zdenek; BOHM, F.
EMNARIMMMINOMMAD'ah"
Telegram of the Ctechoslovak AcedemV of Sciences expressing
condolences on the death of Generalissimo loolf Vismarionovich
Stalin, President of the Council of Ninieters. Chakh.biol. 2
no.10 AP 15). (NIAA 7:2)
1. President Chelchoslovatskoy Airadesdi nauk (for lojedly).
2. Glavnyy sekretar' Chakhoolovatakoy Akademii nauk (for Borm).
(Stalin, losif. 1879-1953)

yXiMBLY, Z.; sow. F.
Telegram of condolence men% by the Czechoslovak AcsAmW of Sciences
on the occasion of the death of Oonerallsolm 1.1.8talls, Chalriman of the
Council of Ninistere (in Russian and ftlishl. Owkb.fis.sbmr. 3 ao.I:
1.7 Kr 15). MU 7:6)
1. President of the Czechoslovak Acadogy of Sciences (for Nej*dly).
2. general Secretary of the Csochoslovak Akademy of Sciences (for Sore).
(Stalin, toelf, 1879-1953)

NEJOLY, Zdensk, akademik
Statement at the 16th Plenary N*etizLf of the :sochoslowak Academy of
Agricultural Sciences. V*stnik CSAZV 7 no.6/7:310-311 060.
(Kul 9:10)
1. Pftnistr, president Ceskosl7wenake akademie ved.
(Czechoslovakia--Agriculture)

Accz=ov im: A?01658o Z/0039/64/023/002/0085/OC88
AUTHORs Sojedlyg Zdansk (Engineer. candidate of sciences)
TITIEs A starw-type circulator
SOUMi SLd)oprow~y obsor. Y. 23. no. 2. 1964, 85-88
TOPIC TAGS: star-type circulator, plane-wave scattering, waveguido
ABSTRACT: This article presents the appraximativo theory of the function of a
star-typs circulator. This theory is based on the solution of the diffraction
problem for a corresponding arrangement of the rjromagnotl.c obstacle. The theory
is applied to a four-amad star-type circulator, The restlts are compared with
the experiment. Orige art. hass 2 figures and 11 formulav.
ASSOCIATION# VyskwaW ustav pro sdelovaci techniku A. S. Porova, Prague (Con-
municatiew RmsemTh 1wtituts)
SURKITT01 194MU3 DATE ACQ& 267eb,64 ENCLj 00
SUB COESS GE NO REP SOV 1 000 OTHER& 007
Card 1/1

if

NEJEPINSKr. Milos, Ins.
Propulsion of rML amd 370L aircraftse "tvodaj VZLU ne.1:41-43
162a

NFbjIFjjGKj,--)g4q-m~ ins.
Drives of aircrafw with shart or vertical take-off and
1"ing. Letooky obsor 7 no.2:50-51 F 163.

PHASE I BOOK Z"WITMCP C2M,7B/566o
A., Engineer, and Kiliwl&v V1k, Engineer, Reap. IMA.
V 0
!'Jj!WAL~ & kovW v CSSR a SSHR; souganny stay a perspektivy rozvoje
(S-.amping and Forging in th" ChSSR anti USSR; the Present State and
Pro-jpe-ts for Development) Prague, SNTL, 1961. 337 P. U50 copies
V-Lated.
The ImLrt "UsOVI~d Q, IEOV&d v SSSR" trwwlated by A. WeJejea.
N
*wAging Ed. for Literature on Keehan1cal InginoerIng and. Chief Ed.: Ote,
Kr" ; Tech. Ed.: Jiff Appl.
P,~FJIWX: This collection of articles is intended for those interested In
advanced pressworking methods.
'c7iMAM: The present state of the stmalpine and forging technologies in
,he ChBOR and UWM Is discussed. The first part, vr1tten by Csecho-
;IcrrLk authors, in concerned with the development of metal pressworking
technIques in the ChSSR and discusses the production of large forgings,
'ari *r

Stemplag and Forging (Cont.) CZWK/5660
e:rt-%-.Alon of metalso stamping of automobIle bodies, and irachanlzation of
4~11 ;1&--te. The second part Is written by Sariet specialists, and die-
cuss*e die forging in presses, upsetting, forge rolling, stowng, ax-
tr,jAica, crossrolling, and forging on hydraulic pressesP crank presses,
an4 drop hammers. No personalities are mentioned. Reftzknces accompany
var-touA chapters. There an 47 references (mostly Czechoslovak.) in the
ftxnit p%it; the second part ca2tsins 91 references (&U Sawiet.)
i'ORTENTS:
STAMPING AND FORGING IN INX ChSSR
q-
~,v.#T.t of the Metal Presswor)zing Technology In the ChSSF (Frenti;ek
Professox, Engimeer, Doctor) 9
W,sirg Large Forgings (Va"cl&v Kr&uA, Engineer]
18
Vims&iumi.-Steal Forgings of Turbogenerator Rotors (Jiff Navik, Engineer,
P 17 J.4x 1 42
C FL-74 2117

NEJEPSA, ROBERT
Mejop.9a, Robert PrIklady z prumosti. (Vyd. 2.) Praha, Statni pedago icko nakI., 1952.
103 p. (UeebnI texty vy9okych skol) Examples of elasticity. Diagrs.l
SO- Konthly List of East European Accessions, L C., Vol. 3, No. 1, Jan. 1954, Uncl.

-obe t
Zmerty nApr-nvcrich tlak~ lokomotiv it zC+orov:.,&. voz,~ ~-~ :--c,. ( 1. V-.~' . ,
:1 ri, hij , k3 . Ceskoslovenske akndeude 7-~d, 195?. 1,)l p. ( -es k c~~ I ov, n5 ki. ki, lprie
ver'.. ickcn t.13chrAckn) ('-'Kwires of nxle loi,.'B n lor.--otivIln, ne 0,01of ver.1clo'.9
of' t.r,e 1:~c, T-c -Ype. 1st e?. nFlish, ~re-vti, nnd -lu!~sljn - I t,1 . ,
iij,if-rs. )
SL: Winthly list of 'iist Furopean .,ccesslc)!is, (1--EAA--, LC, I:u,. , ( . , 711ne lf)5t t
Lncl.