SCIENTIFIC ABSTRACT KOUTSKY, J. - KOUZOV, P.A.
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CIA-RDP86-00513R000825420019-0
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December 31, 1967
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SCIENTIFIC ABSTRACT
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Body:
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KOUTSKY. Jaroslav
act of 44 oxi vegetative nervous system. Neurepsychiat. cook.
18 no.3:178-183 May 55.
1. Stantni lecebna psychiatricka, Jihlava, Roditel XUDr Vilem
Kotina.
(AUTONOMIC MVOUS SYSTIM, physiology
off. of age)
(AGING, physiology
off. of autonomic nervous system)
IOUTSKY, Jaroslav, MUDr
Vegetative 87stom In diagnosis of schizophrenia and neurosis.
Cas.lek.cesk. 94 no.17:458-461 22 Apr 55.
1. Statni lecebna psychiatricka, Jihlava; reditel HUDr Vilem
Kotina.
(SCHI2OPZMiIA, manifestations,
authonomic nervous system, diag. significance)
(NEUROSIS, manifestations.
autonomic nervous system, diag. significance)
(AUTONOMIC MWOUS SYSTEM, in various diseases,
neuroses & schizophrenia, diag. significance)
KOUTSKY, Jaroslav, MOr
Effect of the reflex conditioned prolonged sleep on the vegetative
system of neurotics and schizophrenics. Cae.lek.ceak. 94 no-17:
461-465 22 Apr 55.
1. Statni lecebna psychiatricka v Jihlave. reditel-Mr Vilem
Kotina.
(NEUROSIS. pbyatology
autonomic nervous ;.ratem, off. of reflex conditioned
"loop)
(SCHIZOPHRENIA, physiology.
autonomic nervous system. off. of reflex conditioned
sleep)
(SIMP,
conditioned reflex sleep, off. on autonomic nervous
system in neuroses & schizophrenia)
(ATMONOMIC MRVOUS StSTEM, in various diseases,
neurones A schizophrenia, W. of conditioned reflex
sleep)
KOUTSKT, Jaroslav, VORDRAK, Zdanek
Autonomic system in neurotic and normal persons. Case lake
cook. 46 no-10:303-307 8 Mar 57.
1. Statni psychiatricka lecobna Jiblava, prime Dre
Vilem Kotina. J. Kee Jihlava, Dlouha stezka 1.
(AUTONOMIC MMVOUS STSTSM, in var. die.
neurosis, comparison with normal persons (Cz))
(NWROS?.S, pbysiol.
au6onomic HS. comparison with normal persons (Cz))
KOUTSKY, Jarool4v KOUTSKA, Marie
Influence of daily rhythm on autonomic nervous reactions. Cask.
psychiat. 53 no.2:90-95 Kar 57.
1. Statni paychiatricka lecobna, Jihlava.
(SCHIZOPHMIA, jkbysiol.
off. of daily rhythm on autonomic nervous reactions (Cs))
(NMROSES physiol,
Gamel
(AUTOMMIC MMVOUS STSTM4, physiol.
affo of dailyrbytha on autonomic nervous reactions in
neurotics & schizophrenics (Cz))
KOUTSKY,- Zdenek; CllWUPK0VA, Karla; MATWIGEK, Valdimir
Autonomic T)rofile of schizophrenia. Cns. lek. ceek. 97 no.30:
938-943 18 July 58.
1. Stani lecebna psychiatricka. Jihlava, red. prim. Dr. Vilem Kotim.
J. K., Jinlava, Dlouha stezka I.
(SCHIZOPMOTIA, physiol.
autonomic NS (Cz))
(AUTONOMIC IWVOUS S%TM4, in var. die.
schizophrenia (Cz))
XOMIT, Jaroebm; NOUTSKA, Marie
Potaosium/calcium quotient and certain Tegetative reactions.
Cas.lek.ceek.99 no.37:1160-1164 9 S160.
1. Statni lecebna, psychlatricka v Jihlave, reddtel MUDr.Cenek Klier.
(POTASSIUM metab)
(CALCIUM metab)
(MENTAL DISORM-RS metab)
(AUTONOMIC NERVOUS SYSTEM physiol)
ROUTSKY1 J.
Body constitution and vegetative reactivity. Cas. Lek. Ceak. 101
no.5:419-151 2 F 162.
1. Fs7chiatrickm lecobna, Kromeriz.
(BODY CONSTITUTION)
(AUTONOMIC NERVOUS SYSTEM pbysiol)
KOUTSKY, J.
Studies on functional properties of the cerebral cortex by the method
of motion stereotypes. Bratisl. lek. Ilsty 1,22 no.1:29-36 162.
1, Z psychiatricke lacebny Kromeriz, reditelka IPJDr. S. Lakosilava.
(CEREBRAL CORTEX physiol) (REFLEX CONDITIONEP)
KOUTSKY, J.; KOUTSK4 M.
Effect of diet on vegetative reaotivity. Case lek. cesk. 103.
no.25:717-720 19 Je 1641
1. Psychiatricka lecebua. v- Kromerizi (rediteLkaz MUDr. S.lakosilova).
J~
-Distri
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ION* In C Wvra vindivi. Iltshirs r4ssiml lnrtallodtaphk-Aj~
Were used., It WAS found that the covxse ant mechanism Of
'iarbidle reactions during the mazteusite-decompa, is. Id
theie stecI4 thisame as It Is In steels of similar Comph. stu4.-
led by Kuo Q. Iroo SW AiL 11Aj 2W1956)) and Hels~j
Wen, -Du is pptn,'Ahe diikmt,types of carbWei,
rins Ah
~do not ha,~~ theipecifle shape whk-h w6uld differentiate thm'
one fromi another..-: In sotbite'and In ferrite ackular ppts.')
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Y .
I CZECH/34-59-5-19/19
AUTHORS: Jezek, Jaroslav RNDr., J~~.~'Ja~roslav, Candidate
of Technical Sciences, Ing. and Pluhaj?-,-Jaroslav, Ing.Dr.
TITLE: The Nature of the Precipitates which Separate Out frog
Modified 12% Chromium Steel at Temperatures above 550 0
(Podstata recipit6ta vylu6ujlcfch so z modifikopn~ch
12~ Ych chromoqch ocell' v oblasti nad 550 C)
PERIODICAL: Hutnicke' Listy, 1959, Nr 51 pp 469-472 (Czechoslovakia)
ABSTRACT: (Czechoslovak Metallurgical Research Reports).
The authors studied the precipitates of 12% Or steels
alloyed with small quantities of W, Mo, V and in some
cases also Co (full analyses of the tested steels are
entered in Table 1, p 469) after various heat treatment
procedures, using chemical, electrolytic and extraction
separat-Jon and electron and X-ray diffraction analyses.
L
it was found that in steels, which in addition to
chromium contain tungsten as the main alloying element,
the inter-metallic phase Fe2VI separates out frobi the
6-ferrite and sorbite after long duration annealing.
This phase occurs in steels with 6-ferrite as well as
Card 1/2 in purely martensitic steels and its range of existence
CZEC11/34-59-5-19/19
The Nature of the Precipitates which SeparatS Out from Modified
122-15"', Chromium Steel at Temperatures above 550 C
extends to the Ac temperatures. In steels which have
an increased Mo c;ntent and no W the isomorphous
inter-metallic phase Fe~,Ao is pream~, the orange of
existence of whichdoes not exceed ?00 0. In chromium
steels which do not have any further alloying additionsl
a small quantity of the nitride Cr2N forms in addition
to the carbide (FeCr)2306,
There are 3 figures, 4 tables and 14 references,
10 of -,,.,hich are Czech, 4 English,
ASSOCIATIONS: SVWAT PraGue and
(V. I. Lenin Ifforks,
SUR,1ITTED: February ?, 1959
VZU Zavodu V. I. Lenina, Plze'n
pi"Ge
Card 212
KOTMKY, J.; JANDOS, F.
Nondestructive mthods for measuring the depth of the hardened laye. P. 379.
STRWIREISTVI. (Ministerstvo tezkeho strojirenstvi, Ministerstva, presneho
strojirenstv-L a MLnisterstvo automobiloveho pnmVslu a zemdelskych stroju) Praha,
Czecho3lovakia. Vol. 9, no. 5,, May 1959.
Monthly list of East European Accessions (MI), LC, Vol. 8, no. 10, Oct. 1959. Uncl.
~, 7? _1!
/Y P-2 0 0
CZECI
34-3 9-1
AUTHOR: V-
-Kouti;ky", Jaroslay. Candidate of e4~.hnical ~_~J:en,:.es.
"gineer
TITLE: Contribution on the Basic Nature of Creep Resistance in
inoculated 12% Chromium Steelsiq
PERIODICAL: HutnickS listy, 1959, Nr 11, pp 951 - 955
ABSTRACT: Creep may be due to slip dislocations or to diffusion
phenomena which enable the formation of vacancies and of
energy fluctuations. According to E. Orowan and others
(Ref's I-A), transient creep is caused by slip dislocations,
whilst continuous creep is a diffusion process.
I.A. Oding (Ref 5) arrived at the opposite conclusion.
Cottrell (Refs 7,8) introduced the conception of
qlatmospheres" which are capable cf inhibiting diffusion
movements of atoms and the movement of dislocations.
Development of new heat.-resistant materials is mainly
based on empirical results. The author of this paper
Whs concerned in developing an in3culated 12% c;hromium
steel for operation at temperature5 up to 6oo 6C. The
r,omposition of this steel was larg6ly based on similar,
foreign materials (Table 1, P 951) and also on availability
rdl/5 of the alloying elements in Czechoslovakia. TungstenwagK
CZECH/34-59-11-8/28
Contribution on the Basic Nature of Creep Resistance in Inoculat-O
1290' Chromium Steels
used as a further fain alloying element. All the steels
contained 'vanadium to some extent. Ac;cording to
G,P. Pedorcev--Lutikov and M.F. Seksengv (Ref 10), small.
quantities of molybdenuu0in the presence of tungster. have
a favourable effect on creep. A thorough "planation of
the effects of these elements has not been published.
Therefore, in the here described experiments, the compoeition
was so chosen that,.in addition to the influence of the
delta--ferrite quantity, an idea --an be gained on the
influence of molybdenum and vanadium on the properties of
steels which, in addition to chromium, contain thugsten
as'Lliemain alloying elem6nt. The chemical composvions
of the five melts produced in the experiments are entered
in Table 2. Ingots weighing 40 kg were smelted in 'a
high-frequency furnace; after casting, they were.annealed
at 950 0C, rough-machined and forged at 1 150-850 CC into
22 mm dia and 14 x 14 mm rods. After forging. the rods
Card2/5 were annealed for two hours at 800 OC. Some of the r 'tts
7.
6 7 7 7.17
Contribution on the Basic Nature of Creep Resistanct-. in Inc,;-uls6d
1.2% Chromium Steels
have been described in an earlier paper. The graph,
Figure 1, gives information on the i:;hanges in the hardnt~~s
and impact strength of all the steels after short..,
duration tempering. The results of phase analysis are
desribed and the relation between the -structural changes
and the creep properties are discussed-, Table 5 contains
data on the creep properties of the fife steels for a
test temperature of 600 0Cj Table 6 gives the maximum
hardness values of some of the 0tested steels at the
temperatures 600, 630 and 650 C. On the basi% of X-ray
diffraction analyAks of extracted parti-.Ies and of the
isolate. it ii,cdlWuded that as a result of long-duration
annealing of %M steqs alloyed with a relatively
i4Y
large quant . of Tungsten and possibly n1so 9mall quantiti-ji
of vanadium and moiybdlenum, the intermetallic phase F~~ W
wJIL pre;ipitate from the ferrite. Viermochemical analysis
showed that th6re was a reWion between the dispersion
hardening and the prellipit&T--lon of this phass. The
Card3/5 diffusion of tungsten plays an important parts in the
CZECH'/3-5 9-2-11-8/28
Contribution on the Basic Nature of Creep Resistan,:.e in Ineculated
12% Chromium Steels
precipitation and coagulation of the Pe 2W phase: tht,
diffusion Is slowed down if vanadium is present ' In
view of the complicated nature of the relations govsrning
the creep resistance, the properties of the solid eolutiLon
and the effect of alloying elements of thes~e propertiejs
cannot be disregarded. The invest-Lgation of this prablam
is very laborious but it is necessary to study th* effect
of the preeipitate-over periods of the order of 10000 hours
and to find out whether th6se do not have an adverse
effect on the creep properties. The ne,.nesstty of obtaining
such information is also evident from th* American
experience with similar steels (Ref 12), for which it wae
found that even a homogeneounaDrbitic stru,,Auro obta:kned,
for instance, by adding a large quanti.ty of Cc, could not
guarantee sufficiently stable treep propertie~~'
Card 4/5
t "''7 j 7
C Z E C I I/ -, -*t, - 'J (,, - 4 11 -
Contribut-ion on Thf~ Ba~~t~: Nnturf, -.f p"'Sistarste In
1.2,5,, Chromilint
1hure ;-sr--~ 5 6 tatiles and 18 r,,-foreri- L---- c,f
url-ii.ch ;- -,re English, 6 Soviet :;iid I C~.iirart,
ASSOCTATICIN: zkllr- illzo~til (ZVIL. Pi Is en., L41
SUBMITTED,. APY-VI 1.9. 1959
Card 5/1,
Roo 7S-le
The C$30110* OVYroOpitottei sepegafiag* ftem on, odilled'
127q ChrOMIUM Fteal In the tomporstM afoot aboTo 330*C. ~
fiRi6sWi- ckk, "Jiloslav Koutsk and Ja"Jav Pluhoif.'
111diiM hily 14r*OM lvw).-tu! tem- enctrolytic, 'and I
"tn. sepn. sail clectron and x-ray strutlure analysis we",
wed to "am th ts . 1270 Cr steels alloyed with ;
~smaller quantiti.VIX)TO, V, In some cases. CA-#. an(!:
tmAted under d1groviot temp. conditions. In steels In
which 1wsWea Cr, W occuts as the main alloying element. if
subjected to a long-time annealing at service tzmpt., there
segregates from &fcrrke and sorbite the httermetallic phase!
I Fk-sW. Ilie tegion of pptn. of this phase extends to the
temps. Act. In steels with Increased content of Mo and
without W there occurs the Isomorphow intermetallie phase:
Fc,?*fo, We regi(to of which extends only to lower temps. and]
lit i does not exceed 700% Petr Schnelder-
All
S/129/6o/ooo/o6/003/022
E073/E535
AUTHOR: Koutsky, J., Candidate of Technical Sciences
TITLE: Structural Changes in Some Inoculated 12% Cr Steels
PERIODICAL: Metallovedeniye i termicheskaya obrabotka metallov,
1960, Nr 6, pp 10-20 + I plate (USSR)
ABSTRACT: Numerous authors believe that the ferrite in 12% Cr steel
has a harmful influence if present in large quantities.
To limit the content of 6-ferrite some authors reduce the
Cr content (Ref 1), partly increasing the contents of
carbon, manganese and nickel or using additions of cobalt
(Refs 3 and 4). TsNIITMASh developed an inoculated 12% Cr
steel which has excellent high temperature properties up
to 6000C and at the limit concentration of alloying
elements a content of 40% 6-ferrite is permissible (Ref 5).
Gemmil et al. (Ref 6) studied in detail a 7 to 8% Cr steel
with 3% Mo and very low contents of carbon which contained
40 to 100% 6-ferrite; they found that the creep resistance
was the higher the higher the content of 6-ferrite in the
structure. It cannot be considered an established
Card 1/7 fact that the low resistance of 12% Cr steel is due to the
16-0101o
S/129/60/000/06/003/022
E073/E535
Structural Changes in Some Inoculated 12% Cr Steels
presence of 6-ferrite, since there is very little data
on the behaviour of 6-ferrite at the operating temperatures.
In their experiments the authors of this paper used tungsten
as the basic alloying element. The tungsten content as
well as that of the other elements were selected from the
point of view of achieving differing quantities of 6-ferrite
in the hardened structure. The authors also intended to
elucidate the influence of Mo or V in steels which
contained, in addition to chromium, tungsten as an
alloying element. The chemical compositions of the five
steels used in the experiments are given in Table 1. The
steel was produced in a 40 kg high frequency furnace. The
ingots were annealed at 9500C, rough machined and then
forged into 22 mm dia and 14 x 14 mm cross-section rods.
After forging (at 1150 to 850*0 the rods were annealed
for two hours at 800*C. In studying the behaviour of the
steels during heating, the suitable hardening temperature
Card 2/7 and also the changes In the mechanIcal properties and the
V
s/i29/6o/ooo/o6/003/022
E073/E535
Structural Changes in Some Inoculated 12% Cr Steels
microstructure during tempering were determined. The
results of tempering of the specimens of experimental
steels which were quenched from 1050*C are entered in
Fig 1. The influence of long duration heating on the
structure and the mechanical properties for two of the
tested steels are entered in plots, Figs 2 and 3. Fig 4
(plate) shows the microstructure of one of these steels
after quenching and tempering, it consists of sorbite
with bright ferrite grains. After soaking at 5000C for
500 hours changes in the ferrite grains are evident in
optical microscope investigations (Fig 5). Fig 6 shows
the microstructure of a specimen after soaking for
16 hours at 6500C and Fig 7 after soaking at the same
temperature for 1500 hours; a tendency to coagulation
of the particles inside the ferrite grains is noticeable
with increasing soaking time and increasing temperature.
After soaking for 3000 hours at 6500C it is difficult to
Card 3/7 distinguish between sorbite and the original 6-ferrite.
S/129/6o/ooo/06/003/022
E073/E535
Structural Changes in Some Inoculated 12% Cr Steels
The decomposition of 6-ferrite was observed by means of
an electron microscope, The replicas of specimens
soaked for 1500 and 3000 hours at 500*C show fine
rejected particles in the ferrite (Fig 8); ~he sorbitic
grain is distinguished from the ferritic one by the
presence of coarser particles. In the case of shorter
soaking durations (500 hours) at the same temperature,
the rejected particles in the ferrite grains appeared
rarely in the neighbourhood of the grain boundaries;
by using chromium shading further structural details were
revealed (Fig 9). In addition to coarse carbide edges
at the boundaries of the ferrite and the carbide
particles in the sorbite, zones of increased etching
appear in the ferrite at the boundaries of the carbide
grains. The quantity of these decreases with increasing
heating duration. After heat treatment (without
subsequent tempering) there is no selective etching of
the ferrite grains. Specimens tempered for 3000 hours at
Card 4/7 6500C contain only coarse particles. The results show
S/129/6o/ooo/o6/003/022
E073/E535
Structural Changes in Some Inoculated 12% Cr Steels
that the decomposition of the 6-ferrite is linked with
dispersion hardening of the ferrite-martensite steels.
A thermo-chemical analysis was made of the rejection of
the carbides from the martensite and 6-ferrite. In this
respect the quaternary system Fe-Cr-W-C is the relevant
one; the types of carbides which can exist in this system
and their compositiorvare entered in Table 2. In this
quaternary system no carbides appear other than those
which are known to exist In the ternary systems Fe-Cr-C
and Fe-W-C. To evaluate the thermo-chemical stability
of individual carbides in the various structural
components of the steels, it is necessary to know,at
least approximately,the chemical composition of the basic
solid solution, this was calculated by means of relations
published by K. W. Andrews (Ref 10) using the data on
the dependence of the free energy of the reactions of
formation of the carbides on the temperature,given in
Table 4. The results of X-ray analysis are entered in
Card 5/7 Tables 5 and 6. The creep test results are given in
S/129/6o/ooo/o6/003/022
E073/E535
Structural Changes in Some Inoculated 12% Cr Steels
Table 7, whilst Table 8 contains data on the soaking time
at 6oo, 630 and 650*C, which is required for attaining
the maximum hardness of the steel., The following
conclualmin are arrtved ati
1) Tito structure of 12% Cr steels, alloyed with a high
content of tungsten (3 to 4%) and also Mo and V (which
bring about heterogeneity of the structure at various
temperatures), is unsuitable since the 6-ferrite
decomposes and brings about dispersion hardening.
2) It was established by electrolytic separation of
precipitates and electron and X-ray structural analysis
that the phase Fe W is rejected from 6-ferrite in the
case of long run Keating,,
3) Heat resistance tests showed that 6-ferrite decomposi-
tion is not accompanied by a drop in the creep.resistance.
4) The analysis indicates that small quantities of V and
Mo are effective additions in the presence of tungsten~
Card 6/7 5) The results have confirmed that very large quantities
5/129/6o/ooo/o6/003/022
E073/E535
Structural Changes in Some Inoculated 12% Cr Steels
of 6-ferrite do bring about an increase in the
brittleness of the steel.
There are 11 figures, 8 tables and 12 references,
3 of which are Soviet, 1 Czech, I German and 7 English.
ASSOCIATION: Zavody imeni Lenina, g. Plzen
Czechoslovakia)
(Lenin Works, Pilsen,
Card 7/7
85191
Z/034/6o/ooo/oil/oo4/ooq
E073/E335
AUTHORS: Koutslc~._Jaroalav.) Candidate of Technical Sciences,
rUWUW'T'tZ Jaroslav, Doctor of Natural Sciences
TITLE: On the Problem of Precipitat i of Laves Phases in
Modified 12% Chromium Steelsir
PERIODICAL: Hutnickd listy, 1960, No. 11, pp. 864 - 867
TEXT: In the first part of the paper earlier published results
of the authors and their team (Refs. 1-5) are summarised on the
study of the structural stability of low-carbon 120,0' chromium
steels alloyed with W, Me, Co and V and intended for high-
temperature application; discrepancies between the results
obtained in this work and the results obtained by J. Kchsin-Kuo
(Ref. 6) are discussed in some detail and it is stated that
detailed Soviet results confirm the results obtained by the team
of the authors of this paper. The main difference between the
results consists of the fact that Kohsin-Kuo has not detected
in any of the investigated cases the intermetallic phase Fe. W.
The fact that Laves phases were detected in Czech steels and
,wTere not detected in the steels investigated by Kehsin-Kuo
Card 1/4
85191
Z/034/60/000/011/004/009
E073/E335
On the Problem of Precipitation of Laves Phases in Modified
125'a Chromium Steels
6
is explained by Cadek (Ref. 9), primarily by the presence of V,
pointing out the low value of the atomary ratios W:C and Mo-.C in
Czech steels. According to him, the condition for precipitation
of Laves phases in Mo steels is that the Mo:C ratio should be above
5. The authors of this paper do not agree with the view of
6adek; they havenroved the presence of the Laves phase Fe2W in
a Czech vanadium-free steel OD - Table 1). They belteve that
even in Co-containing steels which have a homogeneous structure
in the heat-treated state, the presence of V is not a necessary
condition for the precipitation of the Laves phase but Co
probably has a catalytic effect on separating out Fe2W in the case
of a W:C ratio which is less than the critical value. For
verifying these views, the authors have carried out experiments
ifith two melts, one a 120% Cr-Mo steel and the other a 1276 Cr-Co-W
steel with the following chemical compositions:
Steel M - C 0.20%, Si o.4711., mn o.48Q,,I, P 0.018','J, S 0-0307%,
Cr 11.9-6, Ni 0.42%, Mo 1.84%;
Card 21L,
85191
On the Problem of Precipitation
120% Chromium Steels
Z/034/6o/ooo/on/oo4/oo9
E073/E335
of Laves Phases in Modified
Steel C - C 0.280'., Si 0.2506, Mn 0.1600, P 0.01-00,06, S 0.0295'07
Cr 11.56a,, Ni 0.175, W 3.42c,Q', Co 5-50aD".
The steels were smelted in a 40 kg induction furnace, cast into
-ingots which were then annealed and forged into 14 x 14 mm rods
and heat-treated byquenching from 1 0 00 0 in oil, followed by
-tempering from 770 C (Steel M) and 67 C (Steel C) with cooling
in air. After this heat treatment a number of specimens were
subsequently annealed at 650, 700 and 800 OC for durations of
100, 500 and 1 500 hours. Investigations were carried out by
optical and electron microscope studies and analysis of the
precipitates. Microstructural *nd X-ray analysis of the specimens
led to the following conclusions.
1) Even in the absence of V precipitation of the Laves phase
Fe2W can occur in 12910' Cr-11o steels with a low atomary Mo,-C ratio,
in which the microstructure in the heat-treated state is
heterogeneous. This supports the view of the authors that in
such cases concentrition differences between the ferritic and
Card 3/4
85191
Z/034/6o/ooo/oii/oo4/ooq
E073/E335
On the Problem of Precipitation of Laves Phases in Modified
125'j Chromium Steels
austenItle (sorbttic) phases have a decisive importance.
2) In the case of 120% Cr-W steels, which have a high Co
content and a homogeneous structure In the heat-treated state,
precipitation of the Laves phase Fe2W may occur in the case of
low atomary W;C ratios, even in the absence of V; this cafirms
the view of the authors that in such a case the separation of
the intermetallide Fe2W may be due to the catalytic effect of
Co. Acknowledgments are expressed to J. Neid for his cooperation
in X-ray structural analysis and to Engineer P. Sch�er
(Metallurgical Inst;Ltute, CSAV) for his assistance in the work
with the electron diicroscops. There are 4 figures, 6 tables
and 9 references: 6 Czech, 2 English and I Soviet.
ASSOCIATIONS: ZVIL, Pilsen and SMT, Pragu
SUBMITTED: July 27, 196o
Card 4/4
Distr: 432c
? Eff&f-af friettifurg" _i;d
=rties of SMffQPAM-w=e Itewellted In an
t1oft furnace. Lit o2t k (Z&vod V. 1. Lentge
Plied, Czech.). *0 IT:::T
content of Cc and C has to be as tow as=b IeTn order to
t he Cr and NI equiv. -approx. equal, The presence of
e;Wte In the structure up to about 20% is acceptable.
r
;Rnal deoxidation is carried out best with Cag. These
steels are not scusitivo lo the casting temp., 1580-14PO'.
After remelting, the Impact strength Is substantiMly im-
'Nrovcd. Petr Scha."r-
Z/034/61/000/002/002/Oo6
E073/E535
AUTHORS: Koutsky, Jaroslav,Candidate of Technical Sciences and
CoirIresponding Member of ?~SAV
TITLEz Comments on the Brittleness of AK 1 (Cr 13) Steels
PERIODICAL: Hutnicke' listy, ig6i, No.2, PP-129-135
TEXT: It is known that for the steels AK I (6SN 17021),
containing 11.5 to 14.5% Cr and a maximum of 0.15% C, the strength,
hardness and impact strength do not change appreciably in the case
of tempering up to 4500C. Above this temperature there is a sharp
drop in these properties. In this paper the test results are
summarized which were obtained on tempered, quenched specimens and
also on specimens which, after heat treatment, were annealed for
durations of up to 1000 hours. In the experiments current heats
of the following compositionswere used:
in %
C Mn Si P S Cr Ni N
A 0.15 0.36 0.21 0.022 0.013 13-40 o.14 o.o26
B 0.07 0.37 0.34 O~024 0.017 13-40 0.31 0.024
Card 1/11
Comments on the Brittleness of AK I... Z/034/61/000/002/002/oo6
E073/E535
The spocimerin were produced from rolled, annealed rods 32 x 32 mm
cross-section. For the steel A the highest hardness was obtained
for hardening temperatures of 950 to 10000C with soaking times of
two hours. For the steel B the maximum hardness after hardening
was lower and the structure contained 6-ferrite in addition to
martensite. The specimens from these steels were quenched from
the temperatures 900, 1000 and 11000C and this was followed by
tempering for 2 hours/air to a temperature up to 7500C. Fig.4
shows the dependence of the.mechanical properties on the temperature
for specimens of the steel A,quenched from IOOOOC and tempered for
two hours. Fig.5 shows similar results for specimens of the same
steel quenched from 900*C and tempered for two hours. Fig.9 shows
the results of long run tests of up to 1000 hours duration obtained
for specimens of the steel A at the temperatures 200, 450, 550,
650 and 750*C, quenched from IOOOOC/2h/oil ( ---- hardness,
impact strength), The results of tests on the reversibility
of the embrittlement in the temperature range 400 to 6500C are
also given. Fig.10 shows the effect of the following heat treat-
ment on specimens of the steel A: IOOOOC/2h/oil - 750OC/2h/oil
Card 2/11
Comments on the Brittleness of AKI ... Z/034/61/000/002/002/oo6
E073/E535
followed by tempering for 2 haurs at various temperatures,
temperature, OC vs. R, mkg/cm . Fig.11 shows the influence of
notch impact strength on the impact test temperature for the
steel A; curve 1 - 10000C/oil - 750OC/2 h/air; curve 2 -
10000C/oil - 750OC/2 h/air + 500*C/15 h/air, temperature, OC Va.
R, mkg/cm2. To determine the changes in the mechanical properties
of heat treated specimens at operating temperatures, in addition to
steel A, a carbon steel C of the following composition was used in
the tests: 0.13% C, 0.27% Mn, 0.18% Si, 0.021% P, 0.013% 5,
13.20% Cr, 0.19% Ni, o.o24% N.. In addition to martensite, the
structure of the quenched specimens contained individual islands of
6-ferrite. The steels were heat treated as follows:
a) 10000C/2 hours/oil - 650*C/2 hours/air
b) 950*C/2 hours/oil - 650*C/2 hours/air
c) 1000OC/2 hours/oil - 650*C/20 hours/air
d) 10000C/2 hours/oil - 750*C/2 hours/air
Specimens with the heat treatment (a) were subsequently annealed at
350, 450 and 5500C for durations up to 1000 hours. The specimens
with the heat treatments (b) to (d) were subsequently annealed at
Card 3/11
Comments on the Brittleness of AK1 ... Z/034/61/000/002/002/006
E073/E335
450% only. The results of notch impact and hardness tests, as well
as the chromium contents in the carbide phase are given in plots,
Figs. 12-16 for specimens of the steels A and C. Fig.12 shows the
results obtained for the steel A after heat treatment (a) followed
by annealing at 350, 450, 550*C. Fig.13 gives the results obtained
for the steel C. Heat treatment conditions same as in Fig.12.
Fig.14 gives the results obtained for specimens with the heat
treatment (b) followed by annealing at 4500C. Fig.15 gives the
results obtained for specimens with the heat treatment (c) followed
by annealing at 4500C. Fig.16 gives the results obtained for
specimens with the heat treatment (d) followed by annealing at
4500C. Fig.17 gives the relation between embrittlement after
long run annealing and after "artificial ageing", R, mkg/CM2 VS.
log of time, hours; curve A - impact strength after the heat
treatment: 1000OC/oil - 650OC/4-8-25 hours; curve A' - impact
strength after heat treatment followed by "artificial ageing";
curves B and BI - hardness H.. The obtained results indicate
that the range-of embrittlement which arises after tempering of
hardened specimens is the result of two parallel or slightly
Card 4/11
Comments on the Brittleness of AK1... Z/034/61/000/002/002/006
E073/E535
shifted processes. The first is precipitation and correlation of
carbides resulting from martensite decomposition, which influences
not only the dynamic but also the static mechanical properties
(hardness, strength). Its kinetics cannot.differ appreciably from
heat to heat, it is an irreversible process since its effects do
not manifest themselves in the heat treated states: its effects in
the case of tempered, quenched steels are very intensive and may
frequently overshadow the effects of the second process. This
second process leads to embrittlement of tempered specimens, which
is characterized by the fact that its influence manifests itself
only on the impact strength; this is a reveraz'-ble process. Since
embrittlement of heat treated specimens in the case of long run
annealing at 1150"C.has the same'characteristic, the authors believe
that embrittlement is of the same nature in both cases. Of
practical importance is determination of the kinetics of embrittle-
ment of heat treated specimens at 4500C; with the exception of a
single case, the impac strength in the brittle state never
dropped below 4 mkg/cm the value demanded by steam turbine
designers. Determination of the impact strength at normal
temperature gives the results under the most unfavourable conditions,
Card 5/11
Card 6/11
Z/046/61/000/004/001/009
D007/D102
AUTHORS; KoutskY, J., Engineer, Candidate of Sciences, Pilous, V.,
--E-ngineer, Candidate of Sciences, and Pokornk, R., Engineer
TITLEx Experiences of the LZ in the development of modified 12%
chromium steels for steam.- and gas-turbine parts.
PERIODICALx Zva'rac'sk~ abornik, no. 4, 19612 353-371
TEXTi The article describes the properties and behavior of T 58 and T 59
steel types, developed by the Leninovy zarody (Lenin Works) in Plze~ for
forged and cast steam- and gas-turbine purts with operating temperatures up
to 6000C. The T 58 steel is a martensitic, heat-treatable, high-chromium
steel with the following chemical compositioni 0.16 (0.20)% C, 11.5
(12-5)% Cr, 2.0 (2-5)% W, 0.15 (0.25)~; V, 0-5 (1-0)/t Ni- Mechanical
properties of this steel type were tested after different heat treatments
and co.mpared with other steel types, such as 13% chromium steel, TBW 50,
HDM, tSH 15 120, El 437, and some other foreign steels. Corrosion tests
Card 1/4
Z/046161/000/004/001/009
Experiences of the LZ in the ... D007/DlO2
were made in cooperation with the SVUOM and the V~zkumn~ dstav energetick~
(Power Engineering Research Institute), Four gas-turbine disks, each
mighing 1 ton, were forged from the T 58 steel. After the first forging V,
operation, deep cracks developed originating in internal stress. The heat
treatment of ingots and forgings was, therefore4 modified so that holding
at the recrystallization temperature of 680-700 C was preceeded by heating
to the A,:l temperature of 850-8700C and subsequent cooling to 3000C. After
this heat treatments only minor cracks were found in the region of forging
allowance. The notch toughness in the disk hubs which originally -ranged
near minimum permissible values or even below, could be Improved by
increasing the quenching temperature. The T 59 steel is a transition type
between the classical 12% Cr steel and the high-temperature steels, and
has the following chemical compositions 0-10 (0-15)% C, 11-5 (13.5)% Cr,
0-5 (0.8)% W9 0.10 (0.20)% VO 0-5 (1.0)% Ni. The physical properties of
this steel type were also investigated in laboratory tests, and three
different gae-turbine ca-zings were cast, the largest weighing 3.5 tons.
The surface after sand-blasting was considerably better than that of
Cf-rd 2/4
Z/046/61/000/004/001/009
Experiences of the LZ in the ... M007/DI02
classical 13% Cr-steel castings. All other mechanical properties were
satisfactory. Extensive tests were performed to determine the weldability
of T 58 and T 59 steels. Electrodes must be used which, under operating
temperatures, have mechanical properties similar to those of the parent
metal. Tests were performed with the available austenitic E 391 and E 891
electrodes, but cracks were observed in the decarbonized transition zone
between the weld and the parent metal. New E 58 and E 58 M electrodes
were~therefore,developed by the Lenin Works in cooperation with the
electrode shop of the VZKG which are suitable for welding b0th, T 58 and
T 59 steels. The weld metal of these electrodes is free from cracks, has
the same creep strength at 6000C as the parent T 58 metal, and the
following chemical compositions 0.16~ C, 0-33% Si.,,,6.61% Mn, 11.7% Cr,
2,1% W,. 0-46% V, 1-0% Ni, 0-014% P, and 0.011% S(VZKG E 58 electrods)p and
0-17% C, 0.27% Si, 0-50% P, 11.7% Cr? 2.22% W; 0-45% Mo, 0-31% V, 1-1% Ni,
0.018% F, and 0.016% 3 (VZKG E 58 M electrode). The E 58 electrode is
applicable to welds up to 35 mm thick, while thicker welds require
intermediate heating. The B 58 M eleotrode is suitable for welds thickor
Card 3/4
Z/046/61/000/004/001/009
Experiences of the LZ in the D007 D102
than 35 mm without intermediate heating and produces a weld metal of
greater notch toughnoss than the E 58 electrode. Notch toughnesses,
tested according to the V63 2S weldability method, show satisfactory values
for both E 56 and E 58 M electrodes* There are 23 figures, 6 tables and
15 referencesj 13 Soviet-blocand 2 unidentified. (Technical Editors
Doctor A. Zapletahek of the VUZ Bratislava)
ASSOCIATION? ZVIL Plzenv
Card 4/4
KOUTSKr, J.
Clinical experience with the utero-tonic effect of cepentyl adminiatered
orally in labor. Can.lek.cesk 100 no.4211329-1332 20 0 161.
1. C~7n, por. klinika lekaroko fakulty hygionicke v Pmzej prednosta
doo. dr. Jar. Padovea.
(CXYTOCICS tber)
32409
401(a z/o34/62/000/001/001/011
I, Tj E073/E935
AWRIORS Kniirsk~,, Jaroslav, Docent Engineer,
tPnce, Klete ka, Zdel4k, Lngineer.
I' ITI -E Int'Itipnce of melting in vacuum on Cie
Forritic heat-resi.stant mteels.I.Cr
resistant steels
'L
PEQr()UfCAI,, ffutnick4 Jisty, no-1, 1()6,!, 3L-37
Candidate of
Y
V(,0.4ka;JtanisI;Iv
tironerties of'
containing heat
TI-AT, rhe authors have inveqtigated the influence tit'
itiel.ting in vacutim on the properties of heat-resistant !ateel.-; at
present bt-ing produced or developed in Czeclioslovakia The first
-Tii,lie-4 were made on inoculated 12'~ Cr steel (tvtie file
-;tudy was made tising a 300 ki; ln 'zot from a 9-ton heat nrodured in
a n I.ectric nrc furnace h niz the Following comnosition.
and av i
0 - 71+-.- Nin, o.. 42-.b Si, 0 ~ 0 lal-O' P; 0. 0-18,0" S ~ 0 ~ 6W N i
-I, L. C t :j, oq-,i-, W, 0, IW6 V, 0.15 r4 Cu, N. From thin: intzor
2-1 min fI!.intPtt,r rods nnd 14 x 14 mm nri.,4ms were forged and tised
'Is tv,;t st)eCimens, Furthermore. )00 mm diameter Ptectrodvs were,
forged and machined down to 8o mm diameter and used for ,4ubsequent
ri-melf tng in vacuum in a furnace,produced by Me-49rs- lierniips
Osest Gormatiy). of 30 kg capacity, Three electrodes were
Card 1/3
32409
fnfluence of melting in vacuum Z/o34/62/000/001/Oo!i/OtL
E073/1`935
re-melted at a vacuum of 10- 3 mm HX and another three electrodes
were re-melted at a pressiire of about ](I'll mm "-(A. From eacl)
series of' the thus re-melted ingots one was investignted in the
As-cast state, and another after forging, A part of' the m-Iterial
from the original 100 k_Q: ingot was re-melted in a 40 kir induction
furnace in a normal atmosphere and deoxidized with CaSi Again A
part of the material was subjected to tests *in the a-q-cn.Qt, state,
another part arter forging. The results, which are describod in
some detail, showed that except for a certain increase in creep
resistance, which still has to be verified by means or lontr-rti"
tests; the re-melting in vacuum did not have any pronotinced
influence on the mechanical properties, The hvdrngen coutent,
which was very low in this steel, remained virtualAy unchawted
after re-~10-tlng irt vacuum. The content of other elementF
did not drop appreciably bv the re-melting in vacuum except
for tno nitrogen content, which was 0,02-~' in the 1. indtiction
melted mteel, 0.021,4' in the steel produced at 10- mm tig and
0.018,,U" itt th~.- steel produced at 1.0-1) mm Hw The atithors
emphaqize that the described results are tile first of' a tieries
and specimens from a mingle basic heat.
were obtained for
Card 2/1
320-1
v./o34/62/ooo/om/m ijon
E071/1',519
AUTHO.W; Koii t,5k J. , E
y 'nginevr, Candidate of' Science, Pokorn�, R.,
-T-11 ~g-i Li vety"2(ka, S.
c rTI.F .5 to i n I ess chromi um steel. wi th a high yi el d poi tit
Czechoslovak Patent Applicirition Idd, 1/30, PV 2002-61,
dated April 0, 1961
PERIODICAL - Ilvitnick4 listy, no.1, 1-962, 64
T','-,XT :. The steel is intendest r1art-Aculat-ly for th(- blades (if
the final stage-, o1' large steam tiirliiiies. ITI adfHti,OT% tO
containing 11 to Ii.:; %vt.,-j Cr it enutain-ci 0.19 to 0,,;O.l C, RWI-K.O.8,:I
Mn, max.O.W; Si, 1.0 to 2.0t,"' Ni, 0.4 to 1.0-"I' Mn, 0.6 to 1,9,~ W,
0 to 0. 3;6 V, 0 to Ti , o to o. W,a' Nb. The minimum tot:tl
content of Ti and Nb is 0.1W,. Fu rtht-rmorv, kt coTif~-ins 0 to
10 _,'7 1. S. Por f'i.naL H-oxidation of
B, min.U.O,;,~ P and max.0.0,;."?
this steel CnSi or ZxSi is used.
EAbstractor's not-.(-: Complete translation]
Card I/I
6626
Z/046/62/000/001/007/007
D007/D1O2
AUTHORS: K Engineer, Candidate of Sciences, and Pilous, V.,
Engincer, Candidate of Sciences
0
TITLE: 1-.eldin- modified 12% chromium steels used at the Lenin Works in
Plzen"
PLRIODICAL: Zva'rac"slcy sborn.1k, no. 1, 1962, 154-169
TM ,TheLeninavy zavady (Lenin Ilorks) in Plzen", in co-operation with the
elektrodovna VZKG (Electrode Plant, VRG) in Ostrava and the ZvAZ in iamberk, deve-
loped the E 58 electrode for welding T 58 and T 59 steels which are used by the
Lenin ',-,orks for production of power equirrent designed for service at temporatures
up to 6000C. The weld metal of the E 58 electrode has a chemical composition
similar to the T 58 steel (approximitely 0.16 % G; 11% Cr; 10' Ni; 2'01' IV; 0.3% V)
and is of martensitic structure with a ferrite-delta content tip to 5/10. Its
mechanical values at 200C, and the creep-strength values at GOOOG after heat treat-
ment are relatively high and satisfactory for both T 58 and T 59 parent metals.
I-lelding is done with preheating to 350-1001C. Before heat treatment, the welded
Card 1/2
q/0,16/62/000/001/007/007
U'eldin- modified 12% chromium steels ... D007/D102
joint has to be cooled below 1000C, then a full heat treatment, and eventually
refining, is performed. For extreme cases tempering at 73000 for 8 hours with
cooling in air is recommended. The notch-toughness values of the weld-parent
metal transition correspond to those of the T 58 and T 59 parent metals. There
are 20,figures, and 4 tables. (Technical editor: Doctor of Natural Sciences A.
Zapictalek, VUZ Bratislava)
ASSOCIATION: Leninovy za'vody (Lenin 'Works), PlzeVn
Card 2/2
34816
5/129/62/000/003/oo6/oog
E021/E335
AUTHORS, B"Outsky. 'T, , Candidate of Techni(.al Sciences and
JWel~, -J. , Doctor
TITLE_ Precipitation of Laves phases in steeLs with 12G,,~ Cr
P1,,i','IODlCAL.,. Metallovedeniye i tormicheskaya ohrabotka metallov.
no. 3, 19620 29 - 33 + .1 plate
TE.'~T, Steels of the percentual. composition _Qiven in
Table I .,;ere investigated. With the exception of stools 1A
and 4C,, all the samples after refining had a heterogeneous
structure consisting of sorbite and 6-ferrite. Precipitation
of Laves phases was observed in the 6-ferrite region. The
results obtained were compared with those of Kchsin Kuo
(Ref. 4 - Journal Iron Steel Inst., v.185, 1957) and the
following conclusions were drawn- Precipitation of the Laves
phas e F e, ,,Nlo in steels containing 12c/io' chromium and additions of
molybdenu'-m with a low atomic ratio Mo-C and ha,.-ing a hetero-
geneous microstructure can occur even in the absence of vanadium.
The different concentrations in the ferrite and in the austenite
C
ard
, 1/-7-
S/129/62/000/003/006/oog
-OrccLpi-tation of Laves phases .... E021/E335
(sorbite) have the deciding influence. Prec Lpitat lot, or tii(,~
Laves phase Fe,,W can occur even in the absence of vanadium in
9tecle containing 120,0' chromium and additions of tungsten and
cobalt and having in the refined state a gorbitic structurc.
(with Low atomic rat.io, W:M It Is assumed that in this case
cobalt. has a catalytic effect on the precipitation of: the-
-Lntermetallic compound Fe,W. The phase Fe 2Mo is less stable
than the phase Fe.,
.) IU There are 6 tables,
ASSOCIATIONS: Zavody imeni Lenina (Works imeni Lenin). Plz (-Ivl
Gosud.arstvennyy -issledovatel.-skiy institut
materialov i teklinologii. Praga (State Research
Institute for Materials and Technology, Prague)
Card 2/3
S/137/62/MO/010/025/022
A052/A'01
AMM115: , ~-, which are important for determining random num-
k itsitr"
bers by physical methods. The inevitable technical inaccuracies, i.e.
the asymmetry in various counter stateii, cause deviation from the distri-
bution regularity of random numbers, so that the expression
1~m , Pk j (5.G) is not valid1for all
-Lt k
t 11
j = 0, 1, 2, **., k-1. Results obtained from the mathematical counter mo-
del and tabulated errors point directly to the origin of these deviations
and thus contribute to eliminating technical inaccuracies and measuring
errors occurring in pulse counters. The improvement of counters can
practically be effected by proper pulse amplifiers and limiters and the
choice of suitable counter elements. There is I table. The &iglish-
language reference is; L. Takacs-. On a Probability Problem Arising in the
Theory of Counters. Proc. of the Cambridge Phil. Society, Vol. 52, Part
3 (1956), pp 488-498.
Card 2/3
Z/026/62/007/002/002/002
The theory of pulse ... D291/0301.
V
ASSOCIATION: 10stav teoric inforniace a autorqatisace CSAV, Praha 2
(Illstitute of Information Theory and Autontatioa,
Czechoslovak AS, Prague 2)
SUBMITTED: Febru~Lry 23, 1961
Card 3/3
.4
ACC NR: AFW301W SOURCE CODE: _dYJOO8816_51OC010O51WW(Y4O1
AUMOR: KoutsV,_Zdenok (Doctor; Candidate of aciences)
ORG: Institute of Information The2a and Automation, CSAV, Prqpuo (Ustav toorio
informazo a automatizace CSAV)
TIME: Doterrdnation of the control interval and statistical sampling plan for
approval-rejection control charts
SOURCC: Kybernotika, noo-5, 1965, 431-"o
TOPIC TAGS: optimal control, probability
ABS MICT: A Markov chain with two states was taken as the mathematical model of the
production process in.dotor=dxdng the optimal control int rval and optiral statistic
sampling plan) with due consideration-for nine criterial~lf the'process is
operating properly (first state), then the probability of rejects is p1; If
-it is operating out of order (second state), then the probability of rejects
is p2. The transition probability matrix of the Markov chain, i.e., the prob-
:ability that the production process will change from the first to the second
state, is known. With the aid of the model it is possible to determine the
,.following: the average length of the production cycle) i.e., the average
time between two successive interruptions of the production process; the
probabilities) respectively, that the machine will stop in the first and sec-
Card
L 4117 3 -66
ACC NR, AvAn,
ond state; the Probability of-a correct or- incorrec-t decision; the aver-
age percentage of produced rejects; and the average Percentage of
_p"ped.
Orig. art. has, 39 formu2as and 27 tables CJPRS:34,1617
SUB CODE: 13, 12 SUBM DATEs 3.3uaY65 SOV REFt 001 OTH REFs 002
0
Card 212 hs
Aft-
-':j Irl -rc v! t'1
f 12
tn Trp'~
VC,or0~0c)IP31 Y
1% IE
AMOUBLOV, S.; KOUYOUHWIZV, 1.
"_
Undbalant fever In human and brucalla abortus in domestic animals
in Bulgaria. C.rend.Balgar. Akad.Nsuk, Sofia, Sc.sath.natur. 2 n0-2-3:
53-56 149. (CLKL 190)
1. Institute of MicrobIolog7 of the Bulgarian Academy of Sciences.
NL'MT'--OVA,, M.; KOU7,111LEK, K. jKcuz1.*--K,., M.
M. j
Flectr,,:~phr.retll'c, st-ady of
flu:A ir. mer,-,al
75 2
ho ~ koye n A. f -1 r-,!
s- a ic
o tA ole- i,- e k:- -'. r io r, e;z k -1kh L a t k - I-J
nauk A. Arjyerc~"
7
110
SOURC~ CODE: 13U
ALUM: 11ollov, H'; '%arokov, No; Popov, So; Kouznanov, B.,
0
ORG: -Institute of Organic Chemistry, BAII, Sofia
TITW: Alkaloids~of somo Gontiana apedoo
SOLQC;~: &agarska akademlya na naukite. Dold-ady, v. 18, no. 10, 1965, 947-949
TOPIC TAGSt alkaloid, plant chomistry
'09491
,kBVI'MT: Gantinna L. is ono of the six gonarn of the
Contionaceno family which is fairly common in nuig'arin.- Fourteen apooios of
this genus thriyo mainly in tho highlands. Soma of them are widely used in
popular medicine, Although in the post many compounds were isolated from the
verioue species of Gontiona, no studios on alkaloids have been mndo yet.
Consoquo~tly', the authors carried out nlkaloid Oompoaltion studios in
Go cruclatn L., Go Osclapiaden L., G. Mae L. Yor. oymphyandru Mrb.,
0. punctato L.p as well as the andomic species 0. bulgaricn. The article
contolni datailod data about tho amount and types or alkaloids found. A more
datallod study of tho proportion or the Individual Ifoloted VkYoida wil
valiov on ~12 Jul,
be published lotere This iapor was prosont/id by i1c omiclan I
1965. LO-rig. art. in En fj-FRS: 34,80ff
SU3 CODE: 06 / SUEal DATE : nona
Card 1/1 mf --:;
/ SOV PXFI 002 / 0111 P,7-,Fz 014
q/
PSTRASHENI, G.I.; RIKOLAYXV. B.G.; MMOV, D.P.
Method. of series in the theOr7 of diffraction of waves by plane
corner regions& Uch.zap. LGU no.246:5-70 158. (MIRA 12:2)
1. Leningradakoy otdelenive Matematicheskogo inatitut im. V.A.
Steklova, Leningradakiy gosudnretyenw universitet.
(Waveo--Diffraction)
K:Ilj"ovl r) V ( Um Ir i: rad. )
P~-- .5 -rl an r; 9due to ',r,.,i --T ~i -,, i -i ~ ~-
on a system of in m L~l&tli.Lz ,A,~i~. xul. :~~
1. , 4. " ~
m6llch- "S no-30409-411 My-3,06.' - , -.
KOUZOVI D.P. (Leningrad)
Diffraction of a plane hydroacousttic wave on a crack in an a2aDtic
plate. Prjkl. mat. i mekh. 27 no.6:1037-1043 N-D '63. OMA 17: 1)
j
L 18591-63 EWP(r)1SWT(a)1BDS AFFTC SM
46~~iiON NRI AP3003249' S/0040/63/027/003/0541/05i
AUTHORs ~ppE, D. P,,.(Leningrad)
17TTIM: Diffraction of a plane lWdroacoustical wave oi the b/oundary of two elastic
1di-scs
SOURCE: Prikladnaya matematika I mekhanika, v. 27, no- 3, 1963, 541-546
?TOPIC TAGS: 17droacoustioal waves diffraction, elastic disc 0 wave propagation
ABSTPJXTt This article treats diffraction of %Wroacoustical waves on linear
linhomogensities (cracks, Junctions of layers of different thickness) In an elastic
Ilayer. The author considers the case of small frequencies of the incident
i.e., frequencies for which the length of the waves in the material
!of the layer is much thicker then the layer. The introduction of this restrictio'n.
Allows him to go from a contact problem for two media (fluid - elastic layer) 'to 'a
'boundary problem for one medium - fluid, on the'surface of which the boundary
~:conditlons are obtained on the basis of an equation of oscillations of an Infinitely
;thin elastic disc. The author constructs a general solution of the two-dimensional
istationary problem of diffraction of a plane fqdroacoustical wave on the boundary of
Awo elastic discs with various elastic characteristics for various conditions of
i Card 1/2
L 185gi-63
r- - , - ----
JACCESSICK NRt AP3003249
contact between the discs. Orig. art.. hass 17 formulas and 3 figures.
1ASSOCIATIONt none
:SUBMITTEDI 040ot62 DAIE AM 23Jul63
SUB CODEs PH
Card 2/2
NO REF SM 004
ENCLI 00
OTHERs 003
BOGOVOLOV, A.M.; OUIOVI.N.A.
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Use of the functional node method of designing in the construction
. of automatic measuring devices. Trudy GGI no.115:63-80 164.
(MIRA 18s9)
KOUZOV, P., kand. tekhn. nauk
Aid for industries., Okhr. truda i sots. strakh. 6 no.10:24
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1. Zamestitell direlf-tora Leningradskogo instituta okhrany truda
Vsesoyuznogo tsentrallnogo professionaltnykh soyuzov.
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KOUZOV, P. A.
USSR/Medicine - Surgery
Medicine - Air
Apr 1948
"Air Supply During Surgical Operations and Measures for Improvement," Prof A. I.
Shafir, Docent P. A. Kouzov, Chaft of Gen Hygiene, Mil Med Acad 6 pr.
"Gig i San" No 4
Result of studies conducted in two large operation-theater blocks to determine
the purity of air. Suggests various measures adopted to further purify air being
supplied.
PA 65T67
SHAFIR, A.I.; IOUSOV, P.A.; PANSHINSIAYA, N.H.
Paper filters for the purification of ventilation air from microorr
,anisms
and dust. Gig.1 sun. no.9:23-28 S 153. (W.RA 6:8)
(Air filters)