SCIENTIFIC ABSTRACT SAVVIN, A.B. - SAVVIN , S.B.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001447420019-9
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 14, 2001
• Sequence Number: 19
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT


E14o/E435
AL;THOR: Savvin, A.3. (---Ioscow)
TITLE: Phase trajectories of systems optimal in speed i-.rith
respect to a given region in the phase plane
P Z'.' I C D I CA LAlcademiya nat 'tic SSSR. izvestiya. Otdeleniye
te;,:hnichcsI~iIc'h nauk. Energetilca,i avtomatika.
no.1, 1962, ia6-132
T-,'XT: TI i eauthor considers an extension of the well-1-mown
probie:.; of nosL rapid incidence on a point in the phase plane t 0
incidence on a convex re-ion. The systems considered are those
with limited second derivative d2x/dt2 a ThIs permits the
sTudy to be limited y dx/dt). From any
to the ihase plane y
point. in the phase plane external to a given convex region ti-lere
is a Unique mainitaimi time trajectory, consisting (as for the case of
incidence on a point) of one or t,.-.-o parabolic seZments or- str-aight
line segments. With suitable construction of the control, tI
M-Inii.-iur.z time trajectory, urill be generated by simple sw-itchin-
the sign of the acceleration of the systembeing uniquely defined,
at each point in the phase plane., The author gives grapho,-
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3/024/62/00C./OGI/005/013
trajectories of systerits ... E140/Z435
arlcalyLic methods for Cin(Jitig Hic optimal Lrajectorie.-i aild the
isochrons. The equations for the latter vary in differant
regions of the phase plane. They are either closed continuous
curves or terminate on an arc of the convex region or the optimal
trajectories arriving at points on that arc. Since the optimal
tra.-Jectories consist of segrllents of identical parabalae, the
--raphical construction proposed is quite simple. In conclusion
author considers rc,,io-ris with piecewise-linear boundaries
wives the example of a square region in i-thich the centre does
12 C" coincide i,~ith the origin of coordinates (the latter is,
ho,,I-ever, urith-in the square). There are 5 figures.
Sul~iMITTZD: June 15, 1961
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V
ACCESSION NR: AP4011315 SIP103/44A25/001/00111001S
AUTHOR; Savvin, A. B. (Moscow)
TITLE; Joint operation of two time-optimum automatic systema
SOURCE: Avtomatika i telemekhanika, v. 25, no. 1. 1964, 12-15~
-TOPIC TAGS: optimized automatic control, -time optimum automatic system,
bang bang automatic system, automatic control theory, optimum switched
system, on off control system
ABSTRACT., A system of two dynamically independent automatic devices is
considered, each described by degerwrate first-order equations~
V. I V j< 1.
where X, y are system variables, u, v contfols. Such a control law U(K, Y),
V (X, Y) must be synthesized under Which the') system starts at an Initial point
(x, y) and arrives at a specified poir~t (x,, yk!) in a mtnimum time.,, A functional
of the form J inax (T,, To, where TT and Tj.- are times. of travel to (x,, y,,) over
C.rd 1/2

ACCESSION NR: AP4011315
the fir s t and the s econd coordinate a(Tj > 0, Tj > 0)) is n-Animized. The
minimax problem is solved for a specified point and a specified (convex) area in
the phase plane and also for moving the system out of the specified area in the
phase plane. It is found that the optimum control at a point within the area can
be determined by comparing the times of motion up to the area boundary along
four trajectories. Both controls must be maximal in each of the four sub-areas
formed by 9-eparatrices. Orig. art. has: 3 figures and 14 formulas.
ASSOCIATION: none
SUBMITTED: 2lNov62 DATE AGO: 14Feb64 ENCL: 00
SUB CODE., CG, 1E NO REP SOY: 003 OTHER: 001
Cwd Z/Z

ACC NR- AT6036516 SOURCE CODE: iii~/O'Ooo/66/oo.)/ooo/0091P/0095
AUTHOR: Nasillyov, V. K.; Gorbov, F. D.; Novikov, 14, A Savvin, A B.; Tan, biyev 'Ye Z
ORG: none
T
LITLZ: Investigation of the possibility of creating a conflict situation during
'Papo
i intlordepondent cooperative pilot teamrork by mans of mathematical modeling L r
I
f presented at tho Conference on Problems of Space Modicino hold in Mloscow from 24
to 27 Kay 1966.7
SOU-RCE: Konforontslya po problemam kosmichoolcoy moditsiny, 1966. ProblorlY 1coamichos-1
1 key noditsiny. (Problem," of space medicine); materialy konferentsii, Moscow, 19
9~-95
TOPIC TAGS: mathematical model, group dynamics, space psychology-, cormonaut
training, hemoostasis
ABSTRACT: In recent years the "man-machine 11 problem has cornmanded'increas-'.
ing attention. Two trends have emerged from investigations devoted to
this problem: the first involves a study of a possible optimum relation-
1-ship betweenjh~e operator and the machin(~;.and-the second considers the
solution to mission-oriented problems by the operator. The majority of
-.experiments have been devoted to the characteristics of one operator inter-i
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ACC NR: AT6036516-
acting with a mechanical system. However, the opjerator teamwork is of
1 special interest.
The "homeostat" device makes it possible to conduct experimental
tests on an ope:rator participating in a team and receive, quantitative data
which can be used to construct a mathematical model of their interdepen-
dent activity.
'Present information indicates that during the solution of "difficult"
problem:; on the homeostat, Ahere-Is a division of responsibility among
the operators necessary for fullfilling the mission. Therefore, the
Ipossibility exists of constructing a heuristic model from experimental
data by consideringthe differentiated nature of different operator tasks in
one group oranother.
Two approaches to studying operator tactics on th.e homeostat can be
demonstrated; a) operator performance in a nonconflicting situation where
the problem can be solved; b) operator performance ina conflicting
situation where the problem cannot be solved. The latter approach is
of special interest in selecting special, mission-oreinted groups *(space-
'fli i U etc.),,
.ght teams, expedit onary gro
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7 A mathematical model was constructed reflecting the operation of
the homeostat in standard regime (static model). Based on this model,
:it is possible to select exchange -coefficient values corresponding to a
-predetermined conflicting or nonconflicting situation. Some data have been
'obtained on the dynamic characteristics of operators during j!~~amwork.
It Cvi. A. No. 22; ATD Report 66-~~
SUB CODE: 05, o6 sum Dim: oolfay66
7
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ACC NR, AT6o36517 SOURC JUUU[UU95TUUW -
AIMIM: Vasil lyz)v, V. K.; Katkovoldy, B. S.; Savvin, A. B.
0.1G: none
TITL,,: 'Mathematical modeling of the organism.'s 0 sub 2 requirement while performing
al work ZP-apor presented at the Conference on Problems of Space Modic
physic. ino hold
in Noscour from 24 to 27 1
-!ay 1966.
SOUR=: Konforontsiya po problemam kosmicheskoy mditsiny, 1966. ProblerV kosrachesi
Icoy meditsiny. (Problems of space medicine); matorialy konforentsii, moacow, 1966,
95-96
TOPIC TAGS: mathematical model, oxygen consumption, biologic metabolism,
biologic respiration
ABSTRACT :A mathematical model of a biological object can b.e constructed in, a
number of ways, one of. which entails composing equations of relationships
for individual elements in a system on the basis of physical, physical cherni-
cal, biochemical, and other laws. Here, the laws of biology and medicine
,provide a background.* Another method involves analysis of input variables
(a'ffectors) and output variables (reactions) of a system. On the basis of such
an analysis, a formal mathematical model can be arrived at which establishes
Ia_qorrelation between the input and output of a biological object. This method
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ACC NR: AT6036517
widely known as the "black box method," is less capable of, explaining pro-
cesses taking place within an investigated object than the first method. How-
ever, the second method is of definite value for rating and prognosing the
state of a biological system.
A mathematical model of human oxygen consumption was considered as
;constructed according to the black box method. An analysis of the oxygen
regime n of the organism during standard, moderate physical"exercise w Ia Is
conducted. The nature of the transition process of oxygen consumption was
studied in response to closed physical work on an automatic "Belaull gas
analyzer.
The process of oxygen consumption during physical exercise was repre-
sented by a second order differential equation. The process of recovery
after completion of exercise was represented by another differential equa-
tion,since oxygen consumption curves during and after exercise differed in
-nature. An att empt was made to link coefficients of the recovery equation
with the character of oxygen consumption processes during exercise.
The proposed mathematical model yields a solution which agrees well
with the results of an experimental investigation. This permits it to be
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used for the quantitative appraisal of the oxygen regimen of an organism.
i Upon further perfection, this model can be used to rate the geneial physical
condition of the human organism under actual qpaceflight conditions and as
a basis for life support req:qirements., No. 2 ATD Report 66-ug
suB coDE.- o6 summ DATP,: 001-lay66

P
Ai:C'N-'- --AP6030728
SOURCE CODE:, UR/0055/66/ooo/oo4/oo96/olo4
z13
AUTHOR: Savvin, A. Be
ORG: Departnr-nt of Applied Mechanics !Moscow University -(Kafedra prikladnoy
mekhaniki
TITLE: A method for synthesizing the control law to bound transient processes in
second-order systems
SOURCE: Moscow. Universitet. Vestnik. Seriya fiziki i khimii, no. 4, 1966, 96-io4
TOPIC TAGS: automatic control, control synthesis, second,order control system,
tr ansient process control
ABSTRACT: The control of the system described by the nonlinear
differential equation
x F(x, x, 6).
is considered. A control law'(x', is sought such that the state.variable x(t)
satisfies the inequality
x (t) < b'when to < t < oo (2)
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L
ACC NR: AP6030728
0
j ror iu-bitrnry fii].Uid. conditions corresponding to the strip D
lxl-,2-
phenyl-arsonic acid], which is here called arsenazo III and
contains the mentioned group (see Scheme). This reagent yields,
at corresponding pH-values, distinct contrast reactions with Th,
.UIV I
I , TTR, Be, Pb, and some other elements. The color
changes from pink (the reagent) to emerald greed and blue. The
main characteristic feature oi arsenazo III, which makes it
Card 1/3 different from the reagents-described before, is its c~Lpability

Photometric Determination of Thorium and Uranium With SOY/PO-127-6-24/51
,.the Arsenazo III Reagent
.of forming particularly stable internal comple:x compounds with
the cations of'the elements..The stability of these compounds
surpasses that of arsenazo I-and II (by V. I. Kuznetsar) by
several orders of magnitude. This facilitates the determination
of elements in highly acid solutions without a preceding time-
consuming separation of sulphates, phosphates, fluorides,
oxalates, and other disturbing substapops. The relative stability
of the complexes can be characterized quantitatively, (Ref 2).
The "method of stability indices" (Table 1) it-used for this
purpose. Besides, the p r 0 p e r t i G s of
a r s e n a z o III, the d e t e r.m i n a t i o n of
t h o r i u m and u r a nA u m , and fin4ly the
sy,n-thesle of a r s e n-a z o III are desoribed.
Figure 1 shows the light.,i-absorption cutres by the solutions of
arsenazo III and by complexes, figure 2 the pH46effeot an the
coloring of the complexes, figure 3 the effect of the phosphates
on the determination of:thorium, and figure 4 the same for the
determination of uranium. There are 4 figures, 1 table, and
10 references, 5 of which are Soviet.
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Photometric Determination of Thorium. and Uranium With SOY/20-127-6-24/51
the Arsenazo III Reagent
ASSOCIATION: Institut geokhimii i analiticheskoy khimii im. V. I. Vernadskogo
Akademii nauk SSSR (Institute of-Geochemistry pnd Analytical
Chemistry imeni V. I. Vernadskiy -of the Academy of Sciences,
USSR)
PRESENTED: April 22, 1959, by A. P. Vinogradov, Academician
SUBMITTED.- April 15, 1959
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S/1P6/60/002/006/009/026
AO51/A129
AUTHORS: Kuznetsov,'V-.I.; Savvin, S-. B-.
TITLE: The extraction-photometriczethod for the determination of
uranium with arsenazo III
PERIODICAL: Radiokhimiya, v. 2,.no. 6, 1960, 682 - 686
2+
TEM The authors have shown that under certain conditions the UO~
complexes with reagents of the arsenazo group.can be extracted and photometry
is possible directly in theorganiephase without reextraction. The determi-
nation of microquantities of uranium can thus, be carried out simultaneously
with its separation from most of,the,other elements. The suggested method is
based on the extraction of'the diphenylguanidine salt of the uq-arsenazo III,
complex with butyl alcohol from a solution saturated with complex III and by
its subsequent photometry in the.extract at /1 = 660 mU. The method is said
to enable one to determine I - 50 of uranium in combination with the simulta-
neous separation from other elements. Phosphates, fluorides, sulfates, Fe,
Al and other-elements do not interfere. In order to extract most of the ele-
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S/186/60/002/006/009/026
The extraction-photometric method for A051/A129
.ments in addition to the diphenylguanidine salts, it is necessary to introduce
certain anions into the solution, such as mono- or tri-chloroacetates, the role
of,the latter being the compensation of the excess positive charge of the ele-
ment forming part of the complex, if its valency is 2. Elements forming two-
-charge cations at pH 3 in the presence of complexon III with arsenazo III do
not interact. The working.method is described as follows:,A few milligrams of
the investigated substance assumingly containing I to 50T of uranium are placed
into a test tube and decomposed according to a method corresponding to the min-
eral composition of the sample and ensuring complete dissolution of uranium.,
For a thoroughlv ground sample this is accomplished by boiling with HC1 + H202
or with HCl+ HNO 3' Without filtering off the non-dissolved part and placing
the test tube in a boiling bath, the solution is evaporated until dry, passing
air through, and the residue.is processed with 2.0 ml of 0.05n HC1. 2.5 ml of
a 5 %-solution of disodium salt of complexon III is introduced. 1.00 ml of a
0.5 % aqueous solution of arsenazo III is added, 0.5 ml of a 20 %-solution of
diphenylguanidine chloride and 5 ml of butyl alcohol are also added. This is
extracted, well shaken, and part of the upper colored layer is removed with a
pipette and transferred to a 10 mm euvette. The optical density is measured
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S/186/60/002/006/009/026
The extraction-photometric method for .... A051/A129
against water on a spectrophotometer at 660 m~Lor on a photocolorimeter with a
red light filter. The uranium content is determined from a calibration curve,
which is plotted in the same way. Several practical.suggestions for improvin~k
the method are listed. There are 2 figures, 1 table and 14 references: 9 Soviet-
-bloc and 5 non-Soviet-bloc. The references to the four most recent English-langu-
age publications read as follows: J. Clinch, M. Guy, Analist, 82, 80, 1957,
J. H. John, F. Will, R. A. Black, Analyt. Chem., 25, 8, 1200, 1953; T. S.,West,
Chem. Age. 80, 943, 1958; P. C. Catesi R. Laran, R.E. Williams, Th. F. Moore,
.J. Am. Chem. Soc., 75, 9, 2212, 1953.
SUBMITTED: February 6, ig6o.
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23881
S1 186/6 1/0C3 /001 /014/020
A05 I/A! 29
15715-j0 0 (1.2,P.21 1.2'73j /-2
AUTHORSs Kuznetsov, V.I., Savvin, S.B.
TITLEj The nenaitivo photometric detarmination of thorium using the
arsenazo-11I reagent
PERIODICALi Radiokhimiya, v 3, no 1, 1961, 79-86
TEXTs The author3 recommend a sensitive photometric method for determining
thorium U54ng the arsenazo-III reagent, whereby 0.05 TTh can be detected.
They show that 10-100-fold quantities of sulfates, phosphates and other
'comDlex-form-4ng substances in addition to zirconium ana uranium do not inter-
.fere with the determinati:)n of th~Drium. An extraction-photometria method is
developed for determining thorium and another method is suggested for can-
eentrating thcrium by eoprecipitation in the form.of a Th-arsenazo-III com-
plex on a colorless precipitate formed b7 diphenylguan4-dine salt anthracene
-(I- sulfoacids. The high stability of arsenazo-III complexes is explained
by the non-coplanar nature of the mole~:ule. Arzenazo-III is said to include
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23881
S/186/61/003/001/014/020
The sensitive photomet-ria determination ... A051/A129
the same groups as arsenazo-I ane-Il (Ref .12, 13, 14). The high sensitivity
of the rear-.ticn is combined with a aatiefactzry selectivity.
AsO H qO r7 H 0 As
3 2 2 3
Structure cf
N-N N
areenazo-III
HO
S ~So H
3 3
Arsenazo-III is synthesized by azo-combination of diazo- 0- aminophenyl-
larsonic acid with chromotropia acid adding CaO (Ref 11). It.differs from
other reagents by its high sensitivity of reaction and by a lesser effect
upon the conditions of the environment& acidity, sulfate concentration, phos-
phates and other thorium-,binding substances. These characteristics of th -e
reagents are said to be connected with the extremely.htlh)sta ill-1-y of the'
com le x compounds formed by arsenazo-III and Th, V , UtVI rare-earth
p
elements, etc. Arsenazo-III forms an intenpyVImerald-greet-ooloring.with
.1 111 tiall
thorium, Fig 1). Cations such as Zr, Hf, Uk So and Fe par YV
BiL U. and high concentrations of -rare-earth elements affect the complex
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23881
S/i86j61/OC3/001/014/020
The sensitive photometrii determination A051/1129
formation of the reagent with thorium,.but these effects can be eliminated
through various chemical reactions. The same principle applies to the anode,
effect. The high sensitivit cf the color reaction is said to be explained
bythe following factorst 1~ the presen-3e of a sharp peak on the curve of
light-absorption of the arsenazo-III-thorium. complexj 2) a significant shift
of this peak on the curve of light-abeorption of the complex as compared to
the reagentp which easily eliminates the light-absorption of the reagent
properi 3) a high stability of the oomplex, wh1oh enables thorium to booome
completely bound to arsenazo-Ill. The oonoentration of thorium from diluted
solutions carried out by 4opreoipitation of the diphonylguanidine salt of
the thorium-arsenazo-11I ~*.%omplex actompanied by the simultaneous preeipita-
tion of a base, such as the salt of diphenylguszidine with a euitable anion-
sulfate, perohlorate, aryIsu7_fonatA_, -Itc., is 1."'omparable to the
method of extraction. The d1st Iincti-Tie feature of the given method is the use
:f a base inet,~ad :~f an ittensi7ely-ciol-ired methyl
Viclet sal~~ whj.-h i-r an L,i the alitiequeat dire-i. photomptry -if the
sollition obtained. The authcze pt-.int :.ut that arsenazo-III present in the
s~,lution does not paqs ~ompi.et617 int..'! the pren_,pitata (only.206) in the
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S/18 61/003/0C1/014/020
The sers.-tive phot..--matri- detezmlzativn A051YA129
~~S686 ;-"f complete th:riuz rezo7tiry. The tlwrilim o;_-~_atpnt in a given solutlion
s determined acc-ording -tc; ths fc~-,mulai
2(E.-E
Th (B
2-E,I
Table 2 liets examples --~f resuIta 1-::'btained wider the given experimental oon-
di'licna. lntrf-~duoing eyen a 91raliq phenylazo-group into the areenazo-I mole-
sule, the stabil-ity of the fomj:'L&x will in--reass as compared to that.of
arsenazc,.I wi-thout this introductivra, If the phenylazo-group does not contain
any salt-forming subetitates. Arzenazn--III is suitable for a very selective
and sensiti-ve determination of uzanium in the tetra-7alent state, when its
behavior is simijar to that cf thori~-;=. There are 3 tables, 4 graphs, 1 dia-
gram and 20 referencess 12 S07iet-.blo,., 8 non-Soviet-bloo.
W~
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HS

UDALITSOVA, K.I.; !A
.~VJN_, B - NWIODRUK, A.A.; NOVIKOV, Yu.P.;
_S~,
DOBROLYUBSKAY-A, T.S.; SIBTAKOVA, S.I.; BILIMOVICH$ G.N.;
SEITMYUKOVA .7 A.S.5 BELYAYEV, Yu.I.; YAKOVLLV, Yu.V.;
14EMODRUK, A.A.; CINUTOVA, M.K.; GUM, N.I.; PALEY, P.N.;
VINTOGRADOV, A.P., akadem-ik, glav. red.; AMY1RO, J.P.,
red.-; BABKO, A.K.,' red.; BU~Z:V, A.I., red.; VAINSHIMN, E.Ye.
red.; YERVAKOV, A.N~j ed,,, KUMM, ; RY A :7, C 1
SOV, i,!., red. nny,
DI,, red. tuorna; TANIANAYEV, IV., red.; CIF-7:~NIMHOV, Yu.A., --ed.:
SENYAVI,li, M.,,,I.,, red. tomai VOLTIFETS, M.P., red.; 11-G.-ViClEOVA,
~eklm. red.; GUS-KOVA, O.M., tekhn. red.
(Aralytical chemistry of uranim) Anali: tiche skaia lldmiia urana.
,cs,.va. Izd-vo Aka- nauk SSliq, 1962. 410 P. (MMA 15:7)
a.
l.. Akademiya naul, S_S~~ Institut geokhimil i analiticheskoy
khimll.
(Uranium-Analysis)

.S/075/6j/ol8/ooi/6b6/bi6
E071/E452
AUTHORS: Savvin, S.B., Basargin N.N.
Makarova
V
P
.
.
,
,
TITLE: An analytical application of dibromoarsenazo
The determination of thorium in the presence of rare
earth elements
PE'RIODICAL: Zhurnal analiticheskoy khimii v.18 no.1 196
3, 61-65
TEXT: The results !'Of an investigation of the applicability of
dibromoarsenazo II for the photometric determination of thorium

indicated that it can
bf~ used for this purpose in the presence of
rare earth elements which in 1 N hydrochloric acid do not interfero-
with the determination up to a ratio of 1:5000- The sensitivity
of the determination is 0.05 Pg/ml of thorium.- Sulphates and.
phosphates in quantities of up to 100 mg in 25 ml of the solution'.
do not interfere with the determination. , The reagent may also be
useful for the determination of some other elements, as it
2+
produces sufficiently contrasting reactions with boron, U02
vanadiumiV and rare earth elements (the colour formed and maximum
permissible acidity forthe-individual elements is given). The
method of the synthesis of the reagent is outlined. There are
4 figures and 2 tables..
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