SCIENTIFIC ABSTRACT PANKRATOV, M. A. - PANKRATOV, S. A.

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• Collection: Scientific Abstracts
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• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 7
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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A. pro,'. , lvlu~,.Iao y 1.~,
I
physiology of thr? motor arialyocro 1",". zap. Fed. -n,,4.
239:93-97 16,14. (M!lRA 1.8:3')

IVAROVA, V.P.; PAIIKRATOV, 114..A., prof., nauchnyy rukovoditell raboty
Localizaticn of extinctive inhibition in the cerebral cortex.
Uch. zap. Ped. Inst. Garts. 239:99-107 164.
18:3)
.2,
S>4

I'%LOV, YU.S.; PANKRATOV,_j-,.A.; prof., nauclinyy nilcovoditell rabety
Trradiation of stim-alation In t.he cerebral cortex. Uch. sap. Ped.
inst. Gerts. 239:109-lu6 164.
(IMMA 18:3)

,1-*t,cl I raboty.
TARASOVA) O.V.; PANKRATOV, H-tt-, PrOf-, nauchnyy nikovo
I U.. 'L condit--oned
Ff,ect of bromine on the extinction 0" a
reflex. Uchs zap. Fed. inst. Gerts. 239:117-122 164- (1141P1 18-3)

ASFINA, L.G.; PAjj1q(ATOV, M.A., profo, nauchnyy rukovoditell raboty
Effect of bromine and caffeine on the extincion of conditioned
motor reflexes. Uch. Zap. Ped. inst. Gerts. 2391l23-129 164.
(MIRA 18:3)

THORP T.G.; PANKRATOV, M.A.j prof., nauchnyy rukovoditell raboty
Restoration of reflexes from the auricular skin of a rabbit as
related to the regeneration of nerves. Uch. zap. Pod. inst. Gerts.
239:131-137 164. (MIM, 18 - 3)

PANKRATOVY M.A.; POGORELOVA, P.M., POLTINNIKOVA, A.A.
-.-. .1
Phenomenon of parakinesis in cond1tioned reflezes. Zhur. vys.
nerv. deiat. 12 no.4:637-642 JI-Ag 162.
(MIRA 17:11)
1. Herzen Pedagogical Institute, Leningrad.

"~,,ftWGV, M.A. (Leningrad)
Problem of funGtIODal localization in the cerebral cortex.
Zhur.vys.nerv.deiat. S) noo3:383-387 MY-Je 159. (MIRA 12:9)
1. Leningradskiy gosudarotvennyy pedagogicheskiy institut in.
A.I.Gerteena.
physiol.)

PAIM-TOV, I.I. A.
'Dankratov, Im. A.' 1111eflexan from the cat Is skin. Analysis o' the
scratching reflex)"' Trudy Fiziol. in-ta in. Pavlova, Vol.
111, 1949, P. 82-87 -- Bi7C,l 4 0 g: p. 87
SO: U-3566, 15 March 53, (Letopis tZhul-nal Inykh Statey, No. lb, 1949).

PANKRATOV, Mikhail Aleksoyevich; MARKOV) N.G., red.; KOZLOVSKAYA, M.D.,
tekbn. red.
[Method for producing conditioned reflexes in animals in school
nature-studi projects) Yetodika vyrabotki uslovnykh refleksov u
zhivotzWkh; v ugolkakh zhiv i prirody shkol. Moskva, Cos.
uchebno-pedegog. izd-vo H-va proav. RSFSR, 1961.. 71 p.
(MIM 1525)
(Conditioned response) (Sleep) (Rypnotism)

p macylatjocaL M.A.
-463..- Two cau in
Ph I" Usso. 1961,
Kai bet" 103oved ;rL7;t kept 4 &Ad I )'Car.
reapectively muui a number of PCTP&twke aboemd. I)uri."g PRS-
the" IFAS Im of wt., 00-09 traphic dislurbances. and a
one cat, aection af the postefior
6=94 of timl proppy 4w. In , carried out and this Increa"d
cajua= of the 41n&1 card - abc
the distarbium*$ dstriul Pregnancy and was ax-compam I by failure
to secrete milk. T) H. SNYM.

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MMKOV, M.P.; PANKRATOV 14.p.; BABMO, V.A.
___j
Cohesiveness of plating in the electrodePOsitiOn of iron from
electrolyte. Zhur.prikl.khim. 35 no.4:803-807 AP 162.
a chloride (MIRA 15:4)
1. Saratovskiy politekhnicheskiY institut.
(Cohesion) (Iron plating) (Electrolytes)

UYUSHKIN) I.Ye.; EfiJ-1YFL~TOV M.P.
Mot~ods for determining the ctrength of banding of
coatings with the base metal. Zav.1ab, 31 no.10: P-02-IZ,03 165.
(MIRA 19.-1)
1. Saratovskiy politekhnicheskiy institut.
t - . ~ IJ--

- i, PANKRATOV,Mj~_
I -
I , Reconditioning parto by electrolytic iron plating. Mashinostroitell
I no*7:15 IJI 162 *(Iron plating) (MUU 15:7)
4-"

S/080/062/035/004/011/022
D217/D301
AUTHORS: Melkov, 111. P., and Babenko, V. it.
TITL:t-;: Adhesion of iron coatings deposited from chlor-L,2r:
electrolytes
PERIODIGIILL: Zhurnal prikladnoy khimii, v. 35, no. 4, 1",!'~'2, 603-bOb
treatment of components in a 30% sulphuric acid so-
-',--lor to hard iron depo c' ition is known to be the most effec-
opera-~ion in preparing the metal surface to ensure SUbseqUent
satisfactory adhesion of the coating. However, in most cases it is
al!io necessary to suspend the components in the plating bath without
sw-_;tching on the current, prior to electrodeposition. The initial
current density used is 4 - 5 times lower than the wor,:ing one and
is increased to the nominal value with 3 - 5 minutes. The aut'lors
have expressed the opinion that susdending components in the bath
without passing current serves the purpose of preheating tlie ca-
thode layer of the electrolyte. This assumption is based on the
fact, that preheating the components in water prior to plating also
Card 1/3

S/030/62/035/004/011/,')22
Adhesion of iron ... D217/D301
ensures good adhesion to the deposit. The question arises to ahat
temperature the cathode layer of electrolyte must be preheated.
i-Irom experience it is 'J-.nown -that good adhesion can be obtailled at
50 - 600C and lower temperatures. However, a bath maintained at
600C is operated at a hydrochloric acid concentration of 2.5 - 3.0
g1l instead of 0.5 - 0.80 67/1, i.e. at concentrations suitable for
a solution working at 80 C. in order to study the changes in elec-
trolysis conditions in relation to electrolyte temperature, pola-
rization curves were plotted at 25, 40, 60 and 800C, using an elec-
Urolyte containing 200 g1l FeCl U
2' 4H20 and 0.8 g/1 H01. The electro-
lysis cell was placed in a thernostat; a 0.455 C steel plate of
1 CM2 sLLrface area was used as cathode, the anode being clectroly-
tic iron. The cathode Potential was measured against a satUrated
calomel electrode. it was found that adhesion of the coatin,- to
the base raetal in the deposition of hard iron, using a ( Ileposition
method developed at the Saratov Pol)technic Institute, exceeds;
4500 kg/cm2. A qualita-tive relationship was found to ex-ist bet-ween
the adhesion of the coating on the one hand, and temperature and
Card 2/3

S/080/62/035/004/011/022
Adhesion of iro-n ... D217/D301
acidity of electrolyte on th "e other. A higher hydrogen current ef-
ficiency during the first moment of electrolysis was established
to be necessary in order to activate the cathode surface. Finally,
it was established that the optimum soaking period without passage
of current in the iron plating bath at constant bath temperature is
a function of the acidity of the electrolyte and diameter of the
components. There are 3 figures and 6 Soviet-bloc references.
ASSOCIATION; Saratovslciy politekhnicheskiy institut (Saratov Poly-
technic Institute)
SUBMITTED: April 15, 1961
Card 3/3

PAN M TOV, M.P., inzhener.
- " -6
- .wtwly .
Strength of'some units of the S-6 combine. Sellkhozoashina no.10:26
0 '56. (MLRA 9:12)
(Combines (Agricultural machinery))

PANKRATOV N. polkovnik.9 kand.istoricheskikh aauk
PartY-fights against the expaoiters, flor.the dictatorship of thepro-
letariat. Kom. Voorazh. Sil 3 no.2:75-81 Ja 163......-. (RIRA 16:2)
(Commmist Party of the Soviet-Union)

PANKRAT(YV N. - POLONSKIY, L.
P
Organixing the mintenano6 and repair of motor YeWlto in an
automotive transportation unit. Avtransps 40 no,7:17-21 Jl
162. (KM 15: 8)
1. Idnisterstvo av-tomobil.Inogo transporta i shosseynykh dorog
RSFSR. 2. Glavuyy inzh. G.Iavnogo upravleniya avtokhozyaystv
Porvo.12hlya i Urala (for Pankratov), 3. Glavnyy inzh. grazovogo
avtokhozyayotva Ryazanskogo axtotresta (for Polonskly)o
(Motor vehicle s--WLintenance aiul repair)

PANMTOV, N.
Small self-regulating suction column. Muk.-elev.prom. 20 no.10:26
o 154. (MLRA 7:26)
1. Thahavtopromstroy.
(Pneumatic-tube transportation)

PANKRAIW
Maintenance and repsir by uriits and in specialized areas
should be introduced everywhere. Avt. transp. 42 no.ll*.
15-16 N 164. (MIRA 17:12)
1. Naohallnik teklinicheskogo upravleniya Ministerstva avtome-
billnogo, transports. i shosseynykh dorog RSFSR.

PANKRAT'DV,, N.
Ways for reducing lalwr conau--ption and expenses in the
maintenance and repair of motor vehicles. Avt. transp. 43
no.6:2-4 Je 165.. (14IRA 18~6)
1. Nachallnik Tekhnicheskogo upravleniyu Ministerstva avtomo-
yll dorog RSFSR.
billnogo transporta i shoi3seyw

PANIMWOV, N. P,.
Bearings (14achinery\
j
Vays and means of
10 2, 1-::2.
rie'~:]. in the bearing ind-ustry. Fodsh-3pni.1k, I.o.
economizing, u - L .4 1 , ~
ssian ssions, Library of Con~ ress, April 191-72. rr 3 ~
Mont 1v List of Ru . Accelor-s- 1; IT.

K, Jv FL,
A" t
VAYNGLWV, M.L.; GERLOVIN. Ya.I.;,PANKRATOV, N. A.
A negative optico-acoustical phenomenon. Opt. i spektr. 1 no.8:
1023 D '56. (MLaA 10:~2)
(Molecular dynamics) (Infrared rays)
V-
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.g. v
xit
M MEN k-

P T~-
AUTHOR; Pankratov, N.A. 51-5-18/26
-TITLE. On the Relationship between Specific and Threshold Sensi-
tivity of a Selective Optico-acoqstic Receiver Chamber and
its Time Constant. (0 svyazi udel'noy i porogovoy chuvstvitell
nosti kamery selektivn?p optiko-akusticheskogo priyemn1ka a
yego postoyannoy vremeni)
IMIODICAL:, Optika i Spektroskopiya, 195?, Vol-2, No-5,
pp. 662 - 666 (USSR)
ABSTRACT: A selective optico-acoustic receiver is a receiver of
radiant energy in which under the action of intermittent light
gas pressure pulses arise. The radiation in the receiver is
absorbed directly by the molecules of the gas filling the recei-
ver chamber. Such a receiver has a wide application in gas
analysis. The pressure pulses are recorded by a microphone.
The limiting sensitivity and the time constant of the selective
receiver was first calculated by M.L. Veyngerovlpef.
Further work on the subject was done by M.A. Ye yashevich
et al. [ie-f. 21, P.V. Slobodskaya tRef.31 and A.D. Sall' [Ref.41.
This paper discusses excitation of acoustic vibrations in the
selective-receiver chamber in a way analogous to that for the
non-selective receiver [Itef.51. The relationship between speci-
Cardl/4 fie and threshold sensitivities of the chamber with its time
51J-18/26
On the Relationship between Specific and Threshold Sensitivity of
.a. Selective Optico-acoustic Receiver Chamber and its Time Constant.
constant is derived since the latter quantity is easily deter-
mined experimentally. Under the action of the incident radiation)
an increase in temperature, pressure and density of the gas is
produced. Only alternating components of these quantities are
of interest. To find these three quantities, the authom uses
3 equations: the equation of thermal equilibrium, the equation
of state and the equation of conservation of mass in the chamber.
The author shows that the specific sensitivity of the chamber u
is given by:
12-2,0 (l - e-kjz)d-j
U Peff. ~l (8)
AV (4a I T3 + P)Jt T S V, +
0 0
where Feff. is the mean effective pressure in the chamber,
Qinc is incident energy, P 0 is mean pressure, Q is frequency
- -P 4-k ~iviniAwni-, light. k,i is coefficient of absorDtion of

51-5-18/26
On the Relationship between Specific and Threshold Sensitivity of
a Selective Optico-acoustic Receiver Chamber and its Time Constant.
of light of frequency,4 by the gas, crl is emissivity of a
layer of Sas,of an effective thickness TO is mean gas
temperature, is coefficient of heat loss by conduction,
convection and work in expansion of the gas, 811 is the total
surface area of the receiver, w is the frequency of light
modulation, It is time constant of the receiver which is the
time in which mean temperature rise reaPes 63PA of its max*
value. At low frequencies, when (wr) := 1 , the effective
pressure and the specific sensitivity of the receiver do not
depend on frequency and are inversely proportional t~ the heat
losses. In the case of high frequencies when (WO >> 1 , the
sensitivity is inversely proportional to the ftequency and does
not depend on the coefficient of heat loss nor the emissivity
of the gas. In this case, the sensitivity is determined only
by the specific heat of the gas. The threshold sensitivity of
the receiver is defined as the ratio of the intrinsic noise to
its specific sen-cftivity. This intrinsic noise is due to fluct-
uations of temperature and pressure in the gas filling the
receiver. The author shows that temperature fluctuations, and
consequently, those of pressure, depend on the emissivity of
Uard 3/4

51-5-18/26
On the Relationship between Specific and Threshold Sensitivity of
a Selective Optico-acoustic Receiver Chamber and its Time Constant.
the gas, its coefficient of heat loss, time constant and the
frequency at which observations are made. The threshold sensi-
tivity can be calculated from:
n6-). ,.- 2
Qt ~0 V2 V 4W kT2S 1 '(4a 1 To + 0) A f (14)
(I - e-k VJ)N
where qt threshold incident radiation energy, n = the
number of times the increase of temperature of the gas due to
the incident light must exceed the spontaneous temperature
fluctuations (noise) for the former to be recorded with confid-
ence, T = temperature, .4f = the band-width of the amplifying
system. The threshold sensitivity does not depend on frequency
and it can be calculated from eq.(3,4r)without any assumptions
about the microphone used as a detector.
There are 6 references, of which 5 are Slavic.
SUMITTED: October, 15, 1956.
A
yarjIVR: Library of Congress
t

AU THORS t Veyngerov, M.L., Nechayeva, L.M., Pankratov and sivkov, A.A.
TITLE: A Now Math6d of Investigation of Emission Spectra of Bodies at Room
Temperature (Novyy metod issladovaniya spektrov iBPUSkaniya tel,
nakhoayashchikhaya pri komnatnoy temperature)
PZRIODIGLL% Optilca I Spelctroskopiya, 1958, Vol IV, Nr 6, pp 797-799 (USSR)
ABSTRACT: A now differential method of investigation of emission speaatra of 'todies
at room temperature is reported. This method is based on the use, of
two refrigerators, in the same way as in the analysis of gases -by mear-3
of the negative optico-acoustic effect described in Ref 3. Principles
of the method can be seen from Fig 1. In front of a monochrmatcr
slit 1 there is a plane mirror 2, a concave mirror 3 and a nor--aeleotirs
optico-acoustic receiver (see Ref 4). The signal produced by the
receiver 4;is amplified by the amplifier 5 and after synchronm-,s
rectification by a detector 6 is measured by a mirror galvanometer 7.
In front of the other monochromator slit a mirror modulator 8 and
two vessels 9 and 10 filled with liquid air are placed. A generator
for the synchronous detector Is on the axle of a motor 11. Directly
above each vessel filled with liquid air there is a tell which has
Card 1/3 sylvite windows. Plane mirrors are placed at an angle of 4;50 to the

SOY/51--i-6-15/24
A New Method of Investigation of Emission Spectra of Bodies at Room TemDerature
horizontal above each of these cells. .rho arrangement is shown in
Fig 1 on the right-hand side. According to the position of the mirror
modulator 8, radiational exchange between the receiver 4: and,ono or
other of the liquid-air refrigerators mill occur. The resulting sipjL
produced by the receiver is equal to zero unless one of the cells Is
filled with the &as to be studied. In the latter case the resulting
signal is proportional to emission of gas in the spectral region
selected by the position of the monochromator prism. Using the
apparatas described the authors obtained emission spectrum of methane
at room temperature in the region near a I&. The results obtained
are shomn in Fig 2. 'The monochromator slit vidths used vore Z'mm
-which correspond to a spectral interval of 0.75 iL. The method
described can be applied to liqaids and solids, as -well as to &&see.
The authors point out that Stepanov and Khvashchovskaya kRef 7)
described an apparatus consisting of a refrigerator, a monochromator..
the substance studied and a receiver which was used to obtain curves
Gard 2/3 from which by the usual methods the absorption or emission spectrum

SOY/51-4-6-15/24
A New Method Of Investigation of Emission Spectra of Bodies at Rom Temperat-re
could be obtained. There are 2 figures and 5 Soviet referencee-
ASSOCIATION: Gosudarstvannyy Optichaskiy Institdt im. S.I. Vavilova tState
Optical Institate imeni 8.1. Vavilov)
SUEMITTED: November 27, 1957
Card 3/3

6 7 157
J.
Y00
Pankratov, and Vinogradova,
11TIS - On the Maximum Possible Sensitivity of a Selective Optico-Acaustic
Receiver
PERIODICAL: Ontilca i spektroskopiya, 1959, Vol 7, No 6, pp 789-797 (USSR)
ABSTRAGT: An optico-acoustic receiver consists of two main parts: a receiver
clamber and a microphone. Iffinen a condenser or an electrodynamic
microphone is used in the receiver the properties of the chamber cannot
be separated from thcGe of the microphone. On the other hand -when an
optical microphone is used in conjunction i~ith a solective-receiver
chamber, the properties of the chamber and those of' the microphone can lie
determined sopar-.italy. It for this raaaon that the authors used an
ozitical micro~hondA6wn rchauatical ly in Fig 1, -A, _LqZ21v.2SI,~,hanbor (1)
was filled vith a gas which can absorb infrared radiation, Pulsatiom-.
of' the gas pressure, producodbya"pulsed" infr,-Irad beam, act on a
celluloid membrane (2) coated vrith a srocular layer of antimony, This
membrane vao used both as a chamber wall and a microphona membrane. An
objective (3) vas placed at a distance of 15 imi from the membrane, Ir!
the focal piano of the objective there Yjar, a -lass raster (4) throuL-h
which light from a source (6), was Projected by a condenser (5) or. to tho
Card 1/3 ma,!ibrane (2). The IiJit -vas reflected from the ia%-abrano and, after

67157
O-il,51 -7 - 6 -1,~/,Ua
Cn the Ma7irram Ponsible Sensitivity Of a ~~810ctivo 0PticD-Ac,7"x:,tiC R-5ceiver
passing through the objective and the raster,it was deviated by a
mirror (7) on, to a single-stage ohotomultiplier (9) of FEU-2 type. The
construction of the chaiabor is shovin in Fig 2. It consisted of a working
spe-ce (1), a ring-shaped charnel (2), a channel joining the vorkinE space
and the rf)Uion immodiate3v "bohind th,3 membrane (3)" , the membrane and itE
r-upporting ring (4), a ewqy)n5ation channal. fin antry Yjilldow (0) , a
window used to protect the membrana (7) and the chamber casing (61) . Two
nhambor5 were constructed-. one was cylindr,,~al in shape (10 mm deptYL and
9~4 ifim diam(5tor), -%ni tbe other was rocta ngular-(6 x 7 mm, cross -saction' and
3 M4 d*rJt)')- W11611 fil]Od With "02 tho cyUndri(,al chwnher h.,td Ft timo
constant of 0.0 soc and tho roctangrular one - 0.003 soi::. AbfzorntAon
of radiation omitted by a Hefner candle (a selactive soiArc;o) amounted to
137, In the cylindrical chanilb3r and 61" in the rectangular one. The r.,,Lt-
woan-:~quaro noise at light-iriterription frequoncy of 10 Cls vas oquiv,-lait
to a radiation flivi: of 6 x 1-0-0 Tf in the iL~ylindrivil c-hainiuar an,-'
8 x 10-9 W -Lr) ths ractang-alar, c~ha:aber~ The noise decreased V.'ith iw:reasa
of the light-intermption fraquency (Fig 4)~ t-it lov, froTaencie~ (10-15 C.,A)
an ovtical microphong mada it )ossibl.3 to reach the sensitivity limit of
the outico-acouf_ztic receivor, since thc noise of the r,3ceiver -was
practically entirely due to the chwiber noiso. T a cylindric,11 chalA;'3,
J limit becaune -.f tfig heat lossea and
had a lover sensitivity

67157
SOV-51 -7-1.3-- Iz.138
On the t1aximum Fossible Sensitivity of a Selective Optico ~'coustic Receiver
higher absorption of infrar,-d radiation; it suffered from the dis-
advantage of a comparatively large time constant. The heat losses in
both chambers were primarily due to thermal conduction and the radiation
losses were very small. It is possible to increase the chamber
sensitivity quite considerably by increasing its dimensions, filling it
with gas at low pressure arxi using multiple passage of radiation through
the chamber. Then absorption of radiation should be of the same order
as in one of the chambers doscribed above but the sensitivity should be
higher. Moreover, under such conditions the thennal conduction and
radiation losses wili be of comparable magnitude. This Is important
since in the case of non-selective receivers the optimum chamber dimensions
are obtained when the conduction and the radiation losses are equal; this
may also be true for selective receivera. AcLcaowledgment is made to
Prof ess or M.L. Vayngerov f or his gaid=ce. There are 7 f iguras and 22
references, 17 of -which are Soviet and 5 English.
WEMITTEDt May 5, 1959
Card 3/3

68317
S 011/51-8 -1-17/40
AUTHOR; Fankratov, 1-1..~L
...............
TIMS. A Selective Op-cico-4tcoustic Receiver with an Electrodynamic
Microphone
PIRIODIt3!6L. optika i spaittroskopiya, 1960, Vol 6, Nr 1, pp 109-115 (USSA)
j.BST,,.;'GT: The paper deals rith various prooerties of selective optico-acoaslic
receivers in whi.ch resonance ;le~trodynamic microDhoneasAre used.
The author determined firat the dynamic impedance of tl~e iaicrophona
bativeen 50 and 1000 C/s. Through a microphone R. and a cal4bmtUA...
resistanco R an alternating current was passed from an uudio-frequoncy
oscillator ZG-10 (Fig 1). R vias -varied until it was equal to R.;
-equa.-11,", was checked by measuring the voltage fall across R and im
by means of a tube (valvo) voltmeter M'M-M The author deterninedalso
the noise at the output terminals of the microphone using a technique
described earlier (Rof 1,,1. The measured noise spectrum (curve 1,
Fig 2) agreed quite -well with noise deduced using Nyquistts "onnula,
from tho"Measured dynamic impedance of the microphone (curve 2, Fig 9).
in both curves the maxima occurred at the resonance frequency of
540-550 a/s. Above the resonance frequency the noise fell ar-0 war,
Ga rd 1/2 governed by the impadance of the microphone coil. Belov the reaonance

87010
S/051/61/010/001/013/017
E 201/E491
AUTHORS: TaahratRy, N.A. and Vasillyev, E.F.
TITLE: A Non-Selective Optico-Acoustic Receiver With a
Capacitor Microphone
PERIODICAL: Optika i spektroskopiya, 1961, Vol.10, No.1, pp.127-130
TEXT: A new version of a pneumatic infrared detector with a
capacitor microphone is described. The chopped beam passes
through the 3 mm window I and is absorbed by the aluminum layer
deposited on the organic film base located in chamber 2 and
fastened to the brass ring 3. The detecting membrane,
metallizzd by antimony or silver and maintained under a tension of
1.6 x 10 dyne/cm, makes contact with the brass ring 4.
A perforated brass electrode 5 is placed in the plexiglas ring 6
parallel to the detecting membrane at a distance of 10 to 15 11
from it. The latter, with electrode 5 , forms a capacitor
microphone with a capacitance of 4 to 6 ji'~F; it can withstand
a polarizing voltage of 5 to 15 V. Slow changes of temperature
are compensated by joining the volume in front and behind the
membrane by means of a channel 9. The capacitor microphone is
Card 1/3

87MO
S/o5i/61/010/001/013/017
E 201/E491
A Non-.Selective Optico-Acoustic Receiver With a Capacitor
Microphone
connected to the balanced r-f (320 kc) bridge. The h-f bridge
voltage is amplitude--modulated by the interrupted signal and
feeds the amplification unit which consists of an r-f amplifier,
a detector, an a-f amplifier, a synchronous detector and a
d-c indicating instrument. With a 0.15 c amplifier transmission
band and a 10 c pulse repetition rate, the rms noise value is
1.2 x 10-10 V. The threshold sensitivity of this detector is
2 to 4 times lower than that of a detector which uses an optical
microphone. However, the detector with a capacitor microphone
is simpler and lends itself to wider use in cases where the radio
flux to be measured is chopped at low frequency. Acknowledgments
are made to M.L.Veyngerov who directed this work. The first of
the two authors (Pankratov) developed the receiver, the second
(Vasillyev) developed the amplifier. There are 2 figures and
15 references: 9 Soviet and 6 non-Soviet,
SUBMITTED: April 19, 1960
Card 2/3

AUTHORi P_a_nkK_ktD_Y_t_N A
32054
S/051/61/011/005/015/018
E202/E192
TITLE: Non-selective optico-accoustic radiation receivers
with electrodynamic microphone
PERIODICAL: Optika i spektroskopiya, v.11, no-5, 1961, 681-683
TEXT: The author set out to build a non-selective receiver
with a resonance electrodynamic microphone and evaluated its
sensitivity. This type of receiver was developed earlier by
S.M. Luchin (Ref.4: ZhTF, v.16, 1115, 1946). The construction
of the receiver is shown in Fig.l. A modulated flux of
radiation passes through the*diaphanous to infrared-radiation
window 1, and is absorbed in a fine Al film deposited on a thin
organic backing 2. The film is mounted by means of two Al rings
3. The radiation sets temperature pulses in the film and in
the gas which lead to pressure fluctuations actuating the
membrane 4, of the microphone 5. The whole receiver is protected
by a glass or metal capsule 6. Microphone leads are tnken out
through metal tube 7, sealed into the capsule. The capsule is
partially evacuated and channel 8 serves to balance the pressure
Card 1/3
Wivj a vV 1 113 -~f A 'Ar rftnf' 40 '1 rCtf YwXhi;

32054
Non-selective optico-accoustic ... S/051/61/011/005/015/018
E202/EI92
on both sides of the membrane. Various types of microphone were
used. The characteristic parameters were as follows: membrane
diameter 6 mm; natural resonance frequency 6oo-700 C.P.Si Coil
resistance 180 ohm; dynamical resistance at the resonant
frequency 1000-1200 ohm. The sensitivity of microphones in the
open space with 1o6 ohm load was of the order of 7-8 mw/bar.
The signal from the microphone was amplified using a narrow band
pass width of 20 c.p.s. The receivers were evaluated by
illuminating them with the radiation from a Hafner candle. it
was found that with the frequency of modulation of 730 c.p.s. and
a 20 c.p.s. band pass of the amplifier, the radiation flux
correspgnding to the mean square noise of the receiver was
5 X 10- w, and with the band pass at 0.15 C.P.B., 3.5 x 10-9 w.
The main advantage of this instrument lies in its low inertia.
Acknowledgments are expressed to M.L. Veyngerov for directing
the work.
There are 2 figures and 4 Soviet-bloc references.
SUBMITTEDi January 21, 1961
Card 2/3

32054
Non-selective optico-accoustic S10511611011100510151018
E202/E1.92
Fig.1
Card 3/3

L 12875-66 E?rr(l)/ETC(m) IJP(c) WW T-607
ACC NRt AP6002042 SOURCE C_6D_E.-UR/62,37/60/000/V6 M/0048
AUTHOR: Pankratov, N. A.
ORG: none
TITLE: A non.-selective optico-acoustic receiver with an optical micro-
phone
JSOURCE.-, Optiko-mekhUnicheskaya promyshlennost', no, 1. 1960, 37-48
TOPIC TAGS: IR measurement, R sensor, IR detection. optic system,
optic receiver..optic microphone
;Z1, qq'15__~'
ABSTRACT: The paper describes a non-selective optico-acoustic receive
of infrared radiation developed by the author with the assistance of V.
I" Lin1kov andPA P._Shashunov. The instrument consists of a radiation
absorption chamber and an optical microphone. A diagram of the optical
system is shown in the figure. An intermittent stream of radiation
13
Fig. 1.
Card 1/2
jj
M N Y p
W069 I - '~ ~~_ 21.
M k 1.
MOW
M10100 t 'j ~ _a.
2,
g F~ ignmi
1"M
2 014
WNM
r
RE

L 12875-66
ACC NRt
-.-..,..,.--.Passds-.-thro.ugh.-fluorite.,-window.-I.--and -is -absorbed -by- a --- thin --layer of -alu
minum applied to anextremely thin celluloid substrate 2$which is locat
ed in the optico-acoustic chamber 3. Pressure pulsations are generated
by'absorption of the radiation in the chamber. These pulsations cause
celluloid diaphragm 4 to oscillate. This diaphragm, which is coated
with a reflecting layer of antimony, is simultaneously one of the walls
of the chamber and also the diaphragm of the microphone. A transparent
glass-gratIng 6 is located in the focal plane of lens 5, which is se-
parated from diaphragm 4 by-a distance of 15 mm. An ima3e of light
..source,8 is projected through the grating onto the diaphragm by conden-
ser.lens 7. This image is then reflected through the second half of thi
grating to mirror 0 and from there through iris 10 to single-stage pho-
tomultiplier 22. The vibration of the microphone diaphragm causes a
periodic 6isplacement of the image along the optical axis which results
iwoscillations of the light flux sent from the auxiliary source to the
.photomultiplier. The separate cemponents of the instrument are discus-
-sed in - detail--with- -consideration- to -characteristics which--affect the---~.
parameters.of the receiver. An electrostatic microphone may be sub-
stituted for the optical microphone without changing the threshold of
sensitivity. The author takes this occasion to thank Professor 'M. ho
Veyngerov for constant interest and guidance, Orig. art. has., 18
figures, 3 tables& [14)
SUB CODE: 17p20/ SUBM DATE: l.7Jul59/ ORIG IREF: 009/ OTH REF: 010
AMPRESS:
Xord

- %%~ ~TNIFI -
, POV v ~# ~
Gauge for measuring the shape of upper weight hooks on small
P66-1 spinning machines. Obmetekhoonyt & [MLP] no,16:65-66
156, (Min 11: 11)
(Spinning machinery)

LUKIYANOV, A.D.; POKAMESTOV, V.V.
New method for preparing peat fields. Birl.tekh.-ekon. inform. no.5:8-10
1609
.(Peat machinery) (MIRA 14:3)

USSR / Forestry. Biology and Typology Of the Forest. K-1
Abs Jour: Ref Zhur-Biol., N. 6, 1958, 24850.
Author Pankratov, N M
Inst
Title The Influence of Tempe~.,ature on the Flowering of
the Oak.
Orig Pub: Sb. rabot po lesn. kh--vu. Vses. n.-i. in-t lesovod-
stva i mekhaniz. lesn. kh-va, 1956, vYP. 32, 217-
224.
Abstract: The determination of temperatures injurious for
male and female in florescences was carried out
with the aim of elaborating methods for the safe-
guarding of the oak from the late frosts in the
Card 1/3

U3SR / Forentry. Biology and Typology of tho Forout, K-1
AbG Jour: Ref Zhur-Biol., No 6, 1950, 24850.
Abstract: forest. The periodicity of the fruitification of
the oak is not an invariable biological propert.-y
but depends on the conditions of It's existence.
Late frosts, by impairing the normal rate of nu-
trition of the tree, exert a harmful influence on
the crop of the current and subsequent year. The
male buds of the oak perish through t1he effect of
twenty-four hours of low temperatures (positive)
from 0 3 to 10- through the effect of temperature
from -6.3 to -0'.5 - in the course of 1 -- 3 hrs.;
through the effect of temperatures below -10 in
the course of one hour. Low positive temperatures
do not show a noticeable influence on the female
blossoms of the oak. A 3-hour effect of -4.50
temperature appears to be pernicious to the ovary,
as well as fast warming after a 5-hour effect of
Card 2/3
7

USSR / Forestry. Biology and Typology of the Forest. K-1
Abs Jour: Ref Zhur-Biol., No 6, 1958, 24850.
Abstract: -10 temperature. Mature leaves perish at -4.50 in
three hours. An injurious effect of a rapid trans-
ition from a low to a high temperature is regis-
tered. It is supposed that, under natural condi-
tions, the blossoms of the southern and the east-
ern part of the crown will suffer from frosts to
a great degree, since their warming under the ef-
fect of sun's rays proceeds more rapidly.
Card 3/3

FANKRATOV, N.N., inzh.
Gold welding of contact wires; mobile uait. Elek. i tepl. tiaga,
7 no.9:11-12 S 163. (MIRA 16:10)

-PANMTOV, N. N. - -
25931 Pankratov. N. N. Sluchay osoboy travmy vodolaza. Voyen.- med.
zFu-rnal, 1948, No. 6, s. 23-24.
1
SO: Latoplal Zhurnal Statey, No. 30, Moscow, 1948.

all I A I A I s 1 4 U a is id0m 11 0 x
A a A m i C lk- 4
A
40
So ir
ooz
Al it u ais a X 0 4 0
41 a 43 die
woo
so
.00
folod detumhastim of W coacestriatwo
It
Ind. 11.NV comoructiou Witt
tion of an app. 1!L& ~-Fzhe-,HO content In Coo
OPIM uVen&d peat an dewribed. A. A. Boeinfinsk
roe
I ~A OITALLUR 'CAL LITIEWUNg CLISUPKATION
1230.j .10 M, got I......
too
uge
woo
41151 -CA 0..
0 U 0 AV 10 AS I ;; ~ ;., ; - ;l , ;, ; , ; " ;~& -. '. I An A Iv Od 0 0 a I IN IN 2 A3 0 31
: re :I* o o 0 o * *0 o o o o 0 0 0 0 0 r 0 6 * 4 0 0 0 0 0 0
-Tod 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 # 0 0 0 * 0 Sl a a 0 0

PAYiY,akTCV 9- S -
42300: PIL'OlIkKil , N - S. llnblyiideni,,~ zn sushkoy torfn , r---formr-v-nncrc formir,nisl-cnimi
gusenitnami FG-2 i FG-'. Torf. nrcm-s"', 1948, licil, s. 21-28.
SC: LetODiS' Zhurnil'nir'', St~,tey, Vel. 47, 1011F.

F
VIMII',)G PtARTS. Xlr-h%Ano 0-1- 31'4
V.:nkr ,It N71.). M3 1951, 2,--29)- PJ -
Itavo ::.5. it-,rf. rmv. (P- - ---JF

PAIIKRATW~, N.S.
"Investigating the Kinetics of tl:o Process of Convectional Drying
of Lmp Peat in an Apparatus Having an Artificial Climate." Cand Tech
Sci, Moscow Peat Inst, Moscow, 1954. (RZHXhimp No 20, Oct 54)
Survey of Scientific and Techniqal Dissertations B,,fended at USSR
Higher Educational Institutions (10)
SO: Sum, No, 451 5 "'ay55

P(-)NKRF)To\/, WS. EWHADSKIT, L.S.;
A SITIV. Ye.T.; APENCHENKO.,S-S-; BASOV, A'P'; BAUSI)" A-y';
VELM, N.A.; GINUM I..,N.; GUSEV, S-A,-; UMWV, G-V-; DOWIKH, M.S,;
DRMHININ, H.N.; YBYIMOV,V.S.; UVAMMT, N.V.; IUSHRGHKIN, N.V.;
LUIAKIN, F.Y.; KWHMAR, G.I.; IOBAHOV. S',P.; HERKUWV, Ya.V.;NIXODIMOV.
P.I.; ?ARUUTDL N.S.-- PYATAKOVO L.V.; TIODIGHEV, A.F.; SHIMTOV, M.S.;
STRMIOV, B.I.; SAVOCHKIN. S.M.,, SAHSDMV, N.N,; SDTITSYN. lllk%A.;SOWIDV,
A.A.; SOWPOV, S.G.; CHRLYSHKV, S.Gs; 5110HUXIII. A.Ye.
Pedor Nikolaevich Krylov; obituary. Torf. prom. 35 no.6:32 158.
(MIPA 11:10).
(Krylov, Fedor Nikolaevich, 1903-1958)

LUKIYAfR)V, A.D., Inzh.; PAVMTOV, IT.S., kand. tekhn. nauk; -POWIESTOV, V.V.,
inzh. - ---------
2reparation of the surface of peat fields by the deep milling of
stump-containing layers. Torf. prom. 36 no.5.8-11 '59.
(MIRA 13: 1)
l.Vsesoymnyy nauchno-iseledovatellskiv iuatitut torfyano7
promyshlennosti.
(Peat machinery)

V . ., kand.teklan.nauk, )"KOVO J.H., inzh.
I of cracks in the process of
Conditions of the forlti0v :15-18 160, (14m 13:6)
dryinge Torf.prom- 37 no*l I skogo InStituta
10 naachno-iseleaovatel
1. vgesoyuznog
torfyanoy promrshlennOstio t-Drying)
(Pea

MALKOV, L.M., kand.tekhn.nauk; PANKRATOV, N.S., kand.tekhn.nauk;
KOWTUSMNJ- V.I., red.; IJLRIO?ICV,- G.Ye., tekhn.red.
(Investigating the process of radiation-convective drying of
granulated and lump peat] Issledovanie protsessa radiatsionno-
konvektivnoi sushki granulirovannogo i Icuskovogo torfa. Moskva,
Gosenergoizdat, 1961. 215 P. (Leningrad. Vsesoidznyi nauchno-
issledovatellskii institut torfianoi promyshlennosti. Moskovskii
filial. Trudy, no.1). (MIRA 16:12)

PANKRATOTs V.S kand* tekhn. nauk; POKAMESTOV., V.V.; LUKIYANOV, A.D.;
UAWHh~ YU.M.; MAMOV, Yu.I.,- KONDRMWOV, A.S.; MYEVSKAYA,
K*T*; MALKOV, L.M.; FORIN, VA.; KOLOTUSMIT", V.I., red.;
LARIONOV, G.Ye.., tekhn. red,,
[New equipment and technology of peat-bog preparation and the
winning of granulated peat] Novaia tekhnika i tekhnologiia bolotno-
podgotovitellnykh rabot i dobychi grazu1irovannogo torfa. kloskva.,
Gos. energ. izd-voy 1961. 86 p. (~= 15:2)
1. Leningrad. VBesoyuznyy nauchno-issledovatel'skiy institut Lor-
fyanoy proiVohlennosti. Direktor filiala VseE;oyuznogo nauchno-
issledovatellskogo instituta torfyanoir proqrsblennouti (for
Pankratov).
(Peat bogs) (Peat machirvary)

PAWKWOV, B.S.-,..k%nd.tekbn.nauk; LUKIYANOV., A.D.9 inzh., POKAIESTOV., Y.V.,
Mechanizing the,preparation of peat,depostbo and swamplands. Mekb.i
avtom.proizv. 14 no*5:30-32 My 1W.0, (MIRA 14:2)
(peat mubinery-Tecbnological innovations)
777-
--- 77~
77777,

PAUMTOV, N.S.,- kand.tekhn.nauk; I&SHIMY, V.I., lush.
i6at and ammonia fertilizers contributing to higher y-lelds. Torf.
prom. 37 no-3:28-30 160. (KRA 130)
1. Filial Voooovagnogo nauOhno-isaledovatel'okop institutetorfyanoy
promyohlennosti.
(Peat) (Ammonia) (Fertilizers and manuron)

P
GHLTASIN, M.; MIKHATIMIKO, A.
"Organization and methods of auditing the taxation work of
finance organizatiotw~*" P. Pankratov, L. MEvirskii. Re-
viewed by M. CheksLairt an Ifin.SSSR 16. no
6:91-92 Je 155. (MLRA 8.*6)
(Nnkratov, P.) (Taxation)
.4

PAITKRATOV, P. A.
w"R (w0)
4. Boring
7. Highly Productive wells- Soob.TFAIT SSSR no. 31, 1951
9. lAoutbl List of Russian Accessions, Library of Congross, jkrch 1953, Unclassified*

PAMWTOV, P-Av
high-discharge! W*119. F.S.Boiariateov.
Desigailij aid building
by P.A,Pankratev. Izv.Otd.ost.n&uk Jal Tadzn.SSR xe.11.97-1W 152.
(KM 9..I0)
l.justitut goologii Akade'mii unuk Taclzhiksk*T SSR.
(Veils)

PANKRATOV P A
High-speed conztruction of highly ly-"oductive wells. DokLjy yad2h.
SSR no.4:7-11 '52- Mu 9 . 9)
I.Chlen-korraspondant AN Tadzhikskov BER. 2. Inatitut geologii Akademij
nauk Tadzhikskoy BSR.
(Soviet Central Asia--Walla)

FAIT IURATC,-
5312. Fanhratov, F. Orc-anizatc-iya 1 rc-vizl"! -7oF~ovoy rabot', fjr.~--~--,,3,~,
organov. Y; Gosfinina!-, 1954 1- 12 s , 20 s CC c-z. 3 r.
SO: Enizhnaya Leto,-is', Vol. 1, 1955
W MINII
j
w
-11- 0, MA-M-R&M MN
W, . I : ,, ~~ M1 21 a
R

PANKRATOV, P*Ao
Prospects for using ground water and measures for preventing salt
formation in the irrigated area of Central Asia. Izv.otd.est.nauk
AN Tadzh.SML no-8333-44 ~540 (MIRA 9:9)
l.Institut geologii AN Tadzhikskov SSR.
(Soviet Central Asia--Water, Undergroumd) (Soviet Central Asia---
Alkali lands)

15-57-10-14640
Translation from: Referativnyy zhurnal, Geologiya, 1957, Nr 10,
p 212 (USSR)
AUTHOR: Pankratov, P. A.
TITLE: Some Theoretical questions on Ground Water Flow and
Collection (Nekotoryye voprosy teorii dvizheniya i
zakhvata gruntovykh vod)
PERIODICAL: Tr. AN TadzhSSR, 1956, Nr 56, pp 159-168
ABSTRACT:' The author considers that when ground waters are pumped
out of'wells, the water level does not correspond to
the flow pressure in a given vertical section. At any
point in a depression cone, water pressure ought to
vary at different levels in the aquifer. The author
offers his own conclusions as to the interaction of
wells in a ground water flow, and also describes the
results of a 1936 experiment which he made in a trough
simulating field conditions. (The results of this
experiment differ from accepted views on water movements
Card 1/1 in porous soils.-Ed.). A. P. Vollfson

PAIUMTOV, P.A.
Hydrogeological conditions in irrigated Tajik massifs in connection
with problems of land improvement and use of underground waters.
Tnidy, AN Tadzh. SSR 77:309-364 157. (MIRA 11:9)
(Tajikistan--Water, Underground)

BARATOV, R.B., otv. red.; HUEBTIKOV, M.M., zarl'. o1w. red.3
BABAKHODMAYEV, red.; K.V*y red.;
DZRALILOV, red.; ZAYI',A?C)V, &A., red.;
T.I., red.; PANKRATOV, P.A., red.; REYMAN, V.M., red.
[Problems of the geology of Tajiki8tan; fest8chrift for
the 23d Session of the Geological Congress in Delhi]
Probleqr geologii Tadzhikistana; sbornik,. posviashchenrX.-I
XXII sessii 14ezb-dunarodnogo geologicheskogo kon.gressa v
Deli. Dushanbep All Tadzhik SM, 1964. 290 p.
(MIR-A 18:3)
1. Akademiya na7ak Tadzhikskoy SSR, Dushanbe. Institut
geologil.

-
filV~~IVJ~~IT V~/.V., inzhener; MOTIOZOT, I.A., inshener; HEM, Aj., inzhener;
PANMTOT. F.D., inzhener.
&MV11vtt.
Now machine for spot welding large-sized, flat steel construction.
Vest.mash. 34 no.10:50-52 0 154. (MLRA 7:11)
(Electric welding)

T /L
LWH/ Engineering welding equipmnt
card A Pab. 128 - 10/31
Authors Vershinskiy, V. V., Morozov, I. )..I Meyer) A. V... and Pankratov, P. B.
Title An apparatus of a new deBign for a contact spot-welding of large-
diaphragm steel platforms
Period Ical Vent. m9h. 10s, 50 - 52, 00t 511
Abstract A narrative report is given concerning the operation and fanction of a
new type contact spot-welding apparatus, designed and produced by the
Kalinin Rolling Stock Construction Factory. Diagrams; illustrations.
Institution
Submitted

LzAvvxnj
nTO-1 It
42691 Comact Welding of Hoofs of All-Alcial Railroad
Pa~senger Cars, ( Russia it. V, Vershinskil,*Ir A. hlo~?zov,
Be T* Re A A. V. Meier, an&l'. B. Pankratov. Vestnik Atashinostrocrina,
V, 3 No. 3 33, no. 8, Aug. 1953, p. 82-86.
Special equipment is described. Photobraphs, diagrams.
1&r . 1954
waiding and Joinin
1-M r-111-1

PANKRATOV, R..
-tilting log dupp. Yast. lesa 2 no.7:14 J1 '58. (HIRA 13--9)
l.Nachallnik proizvodBtvenno-tekhnicheskogo otdela Vetlyanskogo
lespromkhoza, Permskaya oblast' .
(Lumbering--Machinery) (Loading and unloading)

PANKRATOV9
Troubles of ordinar7 members. Izobr. i rats. no.6:27 Je '61.
(MIU 14-.6)
,a
Predsedatell Leningradskogo sf)ve- Vsesayuznogo obshchestva
izobretateley i ratsionalizatorov.
(Germany, &st--Technological innovations)
4ie.

PA931ATOY, S.
Zrror after error. Izobr.i rate. no.IZ.,39 D 139.
(HIRA 13: 8)
1. Predeedatell Leningradekogo oblaotnogo soveta Vaecoyuznogo
obshebestva izobretateley i ratsionalizatorov.
(Tecbuological innovations)

PANKRATOV,,.q,,4,, doktor tekhn. nauk; SOLDATKIN, Ye.P., kand. tekhn. nauk;
1--l'- -:-- FEDOROV, D.I., kand. tekhn. nauk
Determining the tangential constituent forces in excavation
activating the working elements of rotary excavators. Stroi.
i dor. mash. 9 no.9:4-6 S 164. (M1RA 17:11)

PANKRATOV, S.A.
HOW we organized our word- Izobr. i rato. no-915 6 158,
(KRA 11:10)
1. Predsedatell Loningradskogo oblastnogo eoveta Vaesoyusnogo
obsbebastva izobretateley i ratsionalizatorov.
(Leningrad Province-Ifficiency. Industrial)

PA1?1A-Ae,q- 7-()tl -S, 4,
A/UTJ
AUTHOR: Pankratovq S.A. Moscow) 24.8-28/34
F
TITIB ; --On- methods of sol-vring the systems of non-linear,
differential equations. (0 prakticheskilih metodakh resh-
eniya-sistem nelineynykh differentsialInykh.uravnenky)
PERIODICAL: ."Izvesti-7a Akademii Nauk SSSR. Ortdelenive Tekhniches-
kikh Wa_uk.," (Bulletin of the Academy of Sciences USSR.
Technical Sciences Section.) No-8, pp. 156-159 (U.S.S.R.)
ABSTRACT.: Stationary solutions of systems of non-linear, differen-
tial equal-ions whic'h are sufficiently simple can be found
by transforming from the equations for ordinary derivatives
to equations containing partial derivatives and represent-
ing the solutions in the form of expansions in fractional
powers of a small parameter. The author investigates a
number of equations in the resonance solutions of systems
of differential equations for the oscillations of a jib of
a dragline excavator:
d2x + 2 2X + alx2 + blxy + cly 2 + X Os W t 0
Card 1/2 dt2
d + 2 + a~X2 + be ey + 02,Y2 + ?L
4..- 22Y 92cosw2t 0
dt

timb, ~-O V, ~, 4.
(Moskva)
Practical methods for solving systems of nonlinear differential
equations. Izv.AN SSSR Otd.tekh.neuk no-8:156-159 Ag '57.
(MIRA 10:11)
(Differential equations)
tit,

87802
~,'70,0 0 S/040J60/024/005/026/028
4. 6s-0 0 C111/C222
AUTHORs Pankratov, S.A. (Moscow)
TITLEz On a Numerical Method for the Determination of the Roots of
Characteristic Equations
PERIODICAL: Prikladnaya matematika i mekhanika, 1960~ Vol.24, N0.5,
pp.067-968
TEXT: If the equation
n n-1
x +An-lx +..,.+Alx+Ao = 0
has a real root *,\ then it can be written in the form
(2) (x;-~`A)(x'-'+a n-2 xn-2+an-3 xn-3+...+filx+a0) = 0.
The a. are determined so that (1) and (2) differ only by the free term, i.e.
an_2 - A +An-1
(3) an-3 = Aan-2+An-2
a _4 = 'A an_3+An-3
Card 1A a 0

07=2
3/04 60/024/005/028/028
C1 11%222
On a Numerical Method for the Determination of the Roots of Characteristic
Equations
Let At and All be values of Ao corresponding to the
roots 2
(A -a 'A Then let the new value IN be defined by
0 0 3
A -A'
(4) At-Alo
3 - A1+ Al
0 0
It is suitable to choose"N and so that Al-A and A"-Ao have
1 0 0 0
different signs. When for ')\ the corresponding value All' is calculated
3 0
then the next approximate value-A is again determined by interpolation,
where one starts from two values -A and )V for which A I-A and Aj-.A
0 0
have a different sign, etc. If e.g.
(5) X4+A3X3+A2x2+Alx+Ao= 0
has two pairs of complex roots then (5) is written in the form
Card 2/4

S/O 4Y06015(0,24~100 5/02 8/0 2 8
C111 0222
On a Numerical Method for the Determination of the Roots of Characteristic
Equations
(6) (X2 +a1X+a0 )(X2 +bIx+b0 0,
and the ai, b, are obtained from the preceding condition, i.e.
*1 +b A3
(7) a +b +a1 b1= A2
*0 b1+a1bo = A 1
(here one coefficient, e.g. a,, can be chosen arbitrarily.). The free
term is A = a b If there are two values A', All corresponding to the
0 0 0 0 0
values a, all of a then the new value is defined by
A -A'
3 = a, 0 0
(8) a + (at-all).
I A-A-' 1 1
0 0
Card 3/4

87
S/04 60/024/005/028/028
C1 11 YC222
On a Numerical Yethod for the Determinaticn of the Roots of Characteristic
Equations
By a multiple repetition the author determines a value a i for which Ai
1 0
is little different from A 0, and therewith he f:Lndo an approximate value
of the sought solution.
The method is extended to equations with n pairs of complex roots. The
method is recommended for programmings.
SUBMITTED- June 6, 1960
Card 4/4
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2
MEN EM

PANiMTOV, S. A.
"Methods for Calculation of Revolving ?2atfornis of heavy-Daty Zxaavators." Sub
_11, Moscow Order of the labor Red Banner Construction Engineering Inst Imeni
~un
Kuybyshev
Dissertations presented for science and engineering- degrees in Moscow during 1951.
SO: Sum. NO. 40, 9 tiny 55
V

PANKROOV.S.-A., kandidat tekhnicheskikh nauk.
Zxperimental Investigation of dynamic loading on the dragline boom
of the 3-505 excavator. StrotA dor.mehinostr. 1 no.1093-5 0 156.
(MNA 9: 11)
(Excavating machinery)
-33

V,
PANKRATOVI S. A. Doc Teah Sci -- (diss) 4~~s of the
Dynami:D Calculationi of the BoomE; of Rxcavators and Cranes~ll
Most 1957. 28 pp 20 cm. (Min of Hjgher~Education USSR, Mos Order.
of Labor Red Banner Constructiom Engineering%Inst i~a,V. V.,
23W Kuybyshevv), 130 coPi-es (XL9 25-57t 111)
4p-

122-1-2/34
AUTHOR: Pankratov, S.A., Candidate of Teel-mical Sciences.
----------
TITLE-. The guy outriggers of dragline excavators of the "Uralmash"
Plant (Vantovyye strely ekskavatorov--draglaynov Uralmash-
zavoda)
F&IODICAL: I'Vestnik Mashinostro.7eni-va" (Engineering Journal) 1957,
No,lv pp.'12 - 19 (U*S*S*Ro)
ABSTRACT: The report is concerned with dragline excavator types
a.=-l4/?5,3,=-lO/?5 and a.=-20/65 with Guy Outriggers.
These are lighter than other designs but their dynamic loads
are difficult to evaluate. The determination of the loads in
the outrigger frame members by means of strain gauges,is des-
cribed. Typical strain gauge records are reproduced taken in
operation, which show structural vibrations. The basis for a
rational design of the outriggers is discussed.
There are 9 figures, including 2 photographs and 4 oscillo-
Card .1/1 graphic records.
AVAIIABIE: Library of Congress

PANMTOV, S.A., kandidat tekhnicheskikh nauk.
Improving the design of booms for dragline excivators zind cranes.
Strol.i dor.mashinostr. 2 no.7:3-5 J7 '57. MU 10:7)
Obcoavating machinery) (OrRnes, derricks, etc.)

VIMOV, Yu. A., kandidat tekhnichaskikh nauk., kandidat
takhnicheskikh nauk.;RYAKRINg VeA.1 to cheskikh nauk.
"Principles of the theory of single-bucket.excavatotsl by B. R.
Peters,. Mekh. trud. rdb. 11 no.2:47 7 137. (KM 10:5
(Itcavating machinery) (Peters, A.R.)

PANKRATOV. S.A., kandidat toldmichaskikh nauk.
(hW bome used in drag 3-ino excavators designed in the Ural Machinery
Plant. Vest.mash.3? no.1:12-19 Ja 15?. (HM 10:2)
(Ixcavating mehinery)

PANKRATOV, S.A., dots., kand.tekhn.nauk
Dynamic analysis of nuavators and cranes. Hauch.dokl.vys.
shkoly;(strot. no.2:135-14l ' 58. (MIRA 12:1)
zxcavating maebinory) (Cranes, derricks, etc.)

-PAMATOV, S.A., doteent, doktor tekhn. nauk
Bending torsional vibrations of dragline g117 booM0 - IZV- 770.
ucheb. zav.; mashinostr. no.9-.162-168 '58. (MIRA 12:10)
1.Moskovskiy inzhonerno-stroitellnyy institut im. Kuybyeheva.
(Bxcavating machiuery~-Vlbratior)

PANnATOV. 5.A., doktor tekhn- Dauk
crane units- Izv- v76*
Dynamic calculation of excavator and
uchebe zavo; ma9hinostr. no.11/12:46-50 '58.
WIRA 13:3)
l.Moskovskiy inzhenerno-stroitelln77 inGtitut-
(Cranes, derricks, etc.) (Excavating machinery)

FAIMUT.awkb 0 kand. tekha. nauk
Designing turntables fOr heavy-duty excavators* Sbor.trud,
NISI no.26:81-106 158. (KM 12:1)
(Excavating machinery)

PANMTOV, S.A..kand.tekhn.nauk
-I-.. I I ability of
CalcILUting lopses in Bt
craneIa caused by transitory loads.
ill 158*
(Sxcavating machinery)
booms of ercavatOrs and
Sbor.trud.MISI no*26*."167-
(MM 12:1)
(Cranes, derricks# otc*)

r tekhn. nauk- GOIX)ZOV, I.M.. kand. takhn. nauk
pANMTOV, S.A., dokto
Designing and investigating the durability of the KKG-8
rock excavator buckets. StroIJ dor.masbinostr. 3 no.10:7-11
0 '58. n (MI RIL ll.- 11)
(Excavating maebinerY)