SCIENTIFIC ABSTRACT VALAKHANOVICH, A.I. - VALATSKA, K.K.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001858420006-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 31, 2001
• Sequence Number: 6
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

ACC NRs AT6015148
h
F
A
Irl
0S
YM-2
;L
L
J. W:
Optical arrangement for
mirror-surface quality control
SUB CODE: 20 / SUBM DATE;
diaphragm; S -monochromator entrance slit;
0. -camera objective; Se exit slits. 0(. - micrp-
objective; 0, - recollimating objective; Z - slewable
mirror; pp - semitransparent plate; A - reference
plate; B - test specimen; 0,L 0, and 0., 05- - ob*erva'
tion tubes (telescopes). The well-known inter.~-
ference method is employed for studying optiS~l,
inhomogeneities in laser rods4b Soviet-made ITR-Z
Layleigh type) and IZK-4537(Jamin type) intet-,
metershave been tried for both qualitati and
fero Vf
quantitative tests of the inhomogeneities. Th
ITR-2 instrument is capable of measuring 10--r30-
mrn long 5 - 10 - mrn wide plate s o r 8 0 -mrn long
7-12-mm diameter rods with an error of 'k/15 to
A /Z0. Orig. art. has: 14 figures and 16 formulas
and 1 table.
lZFeb66 / ORIG REF: 004 / OTH REF: 005
114

LEBEDEV, Ye.P., dots.; CHIRSM, G.'M., dots.; VALAKHANOVICH. A.I.:
FARAFIWV, G.Ya., red.; NIKOLISKA7A, K.G,p tekhn. red.
(Statistics of passenger transportationlStatistika perevozok
passazhirov; uchabnoe posobie po distsiplinam nZbeleznodorozh-
naia statistika4l i "Osnev7 rtatiaticheskogo i bukhgalterskogo
ucheta na zheleznodorozb3ddln transports" dlia studentov rl kur-
sa spetsialluosti "Ekonomika i organizataiia zheleznodorozbnogo
transportall i V kursa spots-lallnosti "Ekspluatatsiia zheleznykh
dorog." Moskv~-, 1962. 21 p. (MIRA 15:12)
1. Moscow. Vsesoyuznyy zaochrqy institut inzhenerov zheleznodo-
rozhno o transporta.
tRailroads--Passenger traffic) (Railroads-Stitisties)

KRUSSER, O.V.; Y~~ ~I.; KHOLODOVA, G.V.
Enriching the medlum for the biosynthesla of streptomycin. Trudy
lAn.khim.-farm.inat. no.15sU7-120:~62, ~ . (MIPI 15:11)
1. Kafedra tekhnologii antibiotikov (zav. - prof. P.A.Yakimov)
Leningradskogo khimiko-farmatsevticheskogo instituta i Minskiy
zavod meditsinskikh preparatov (dir. N.G.Semizhon).
(STREPTOMYCIN)
(BACTERIOLOGY-CULTURES AND CULTURE MEDIA)

KRUSSMrj, 0-.r.; YMUMOV,, P.A.; VALAERXQVICH,A~.I.f KHDWDPV4,,G.V*; BASHKABOVA,A.A.
81;6~idoof,streptoaWcin in 'w -Medium- %ifir fo' -'~NWigobea~
rme
meal Trudy in-st. - no,15 a12~7. 62 ?
33
(MIRA 15:11)
1. Kafedra tekhnologii antibiotikov (zav. - prof. P.A.Yakimov)
Leningradskogo khimiko-farmatsevticheskogo instituta i Minskiy
zavod meditsinskikh preparatov (dir. N.G.Semizhon).
(STREPTOMYCIN)
(BACTERIOLOGY-CULTUR1B AND CULTURE MEDIA)

KRUSSER, O.V.; VAIAKRANOVICH, A.I.; YAKOVLEVA, Ye.P.; BASKAKOVA, A.A.
Isolition of amino acids from the mycelium of ActinoEWces
globisporus streptomycini. Trudy LenAhim-fam.inst. no.15:
135-140 162. ~ (MIRA 15:11)
1. Kafedra tekhnologii antibiotikov (zav. - prof. P.A.Yakimov)
Leningradskogo khimiko-farmatsevticheskogo instituta i Minskiy
zavod meditsinskikh preparatov (dir. N.G.Semizhon).
(AMINO ACIDS) (ACTINOMYCES)

BORISOVA, M.I., nauchnyy sotrudnik; VLADD9MV, B.M., nauchnyy sotrudnik;
ALfTMAN, A.B.; VALAKINA, V.Y,.;WMWVp V.L.
Self-lubricating ceramic metal rollers made with graphitic iron.
Tekst.prom.22 no.3:80-82 Mr 162. (MIRA 15:3)
1. TSentralinyy nauchno-issledovatellskiy institut khlopchatobu-
mazhnoy promyshlennosti (TsNIKhBI) (for Borlsova, Vladimirov).
2. Vsesoyuznyy nauchno-iseledovatellakiy institut elektromekhaniki
(VNIIEM) (for AlItmanj Valakina, Memelov).
(Spinning machinery)

L 37747-66 FVqp( e )1EWT (m )/E1fiP( t )/E-T 11 11JP(t) JD/WH
-ACC-N-R-s~AP6017102 S0_UhG_E__G_0'D_E:
AUTHORS: Alltman, A. B.; Valakina; V. M.; Karpova, V. P.; Memelov, V. L.;
Sorokina,, V. N. ... ....
ORG: All-Union Scientific Research Institute of Electromechanics (Vsesoyuznr.,
nauclino-issledovatellskiy institut elaktromekhaniki)
TITLE. Dopendence between total and nrCnc(! .)orosity of sintered materials Gu--Sn-_1C.
SOURCE: Foroshkovaya metallurgiya, no. 1, 1966, 41-h5
TOPIC TAGS: copper,.tin, carbon., graphite., powder metal compaction, powder metal
sintoring y PoIeO317'y , %S1VrF_gej) 19LLoy
,pd pressure on the ratio of total
ABSTRACT: The effect of sintering temperature a
(PT) to surface porosity (PO) of bronzo2aghite\X90%' Cu,, 9% Sn, 1% C) was investi-
gated. The total porosity was determined by means of the formula
Pt" N, t -100,4
Yo. -
where FT is the total porosity and ~o and K are the densities of nonporous and
porous bronzographite respecGively. The surface porosity was estimated from oil
absorption data according to the formula
-
..M= 1.00,
I-- _ , V
Card 1/2

L 37747-66
ACC NR: AP6017102
where ~! is the oil absorption, G2 and G, are the weights of the specimen before and
after oil treatment respectively, Ij is the density of the oil, and V is the volume
of specimen. The experimental resitts are presented graphically (see Fig. 1). It
(0
P4.#
Fig. 1. Dependence of total (1) and surface (2)
porosity, and the ratio of surface to total
porosity (Po/PT) of bronzographite specimen
compressed from powdered Cu. alloy Cu--Sn, and
C, on the sintering temperature. Sintering
pressure W k newtons/cW, initial total
porosity 19%.
0.
E f~
880 Wo A o0 000 11+0r"Y
was found-that the sintering temperature and pressure affect the total and surface
porosity differently. The ratio of surface to total porosity when expressed as a
function of the temperature exhibits a minimum, the position of which is shifted to
lower temperatures with increase in the specific sintering pressure. Orig. art. has:
2 equations and 4 figures,
SUB CODE: ll/ SUBM DATE% none/ ORIG REF: 007
Card 2/2

AN C, U4VA,5 -J-,
der-

he d I sl~jl;j 1. Ftlect
itnW~UC40=5 In t flat A Ij'.Lhtq_1 q, it
0 reducin
gggntS on fr
e th ro6ilid a da
I Voiit~kil
.
e
g
and L jj, V'A'najjljLU(K
Slatel I -, 31!
ft.-Oad- Nank S.S.S.R 9
E -
(19S.
A. 32. 15971-The 2nd qtel) in the sug-
1); cf.
gcsted meclianisin of polythlonic acid tomation lVa" IV--
cently proved bv Gochring (C.A. 43, 21V_66), x%ho ul~o
showd that 11',S01 III adds. to being a redueing agent i,
alsoanox t7ing.
Ij ' ' '1zCII& 11 it could be -hown thata.;o1n, of
free 11,520~ o.-eidized PIS it would be an addi.A. afgument
in favor of step (1) IfiSOj + 11-.0 = 2H,SOI, which i; still
unconnrined. With tHs ol)jcct in view jolus. of thioviltate
aud XarS (or KUS) prvpd. wparately III a inin. of H:O
at -5* w~r& added to coccd. JjCj at - W. NNaCI pptd.,
then S. The filtrate trai anni I
vzcd for 11_13~0,. If. SO,, I I-S, -
and the nd. of mok. of polythionic t,;d asid the av. S con-
ten1r; the ppt., forS, With a ra;ioof &0,--:S"- >_ 3:1 no
free- If.-S m-ma-ined and 87442% of the originil S "-as in the
forin of polwhionic acids. The reacti6n is .11141.01 +
H-S - fft&O. + S + ZOO (2). MINI. confirrination of
reaction (2) ivas obtained by the substitition of MPOI for
H-S, 95% of tb- total S was obtaincd as practically pure
HA04. To th, Altrate equiv. amounts of henzidiric-110
were added. The ist ppt. (sJow ppta.) was
14L0), the 2nd C,,I1t(NJfj)t,frjSgO4, "d rrom the srother'
.
Wal obtained the corresponding pentathionute. The
mccIAAlliSm of reaction (2) Is reprtscrited by 3 rea(lions,
reaction (1). 2HtSOL. + 11rS ~ HS~,Oj + S + 21frO, and
HA02 + 2HS.O, - lf:Wi + IIH20. This is the Ist
record in the literature of reaction (2) and the SUCCC54111
preptit. of beaxidine actathionate in the cry!;t. form.

UMB/chemintr7
Card 1/1
Anthora t Yanitakiy, I. V.; and Valanchunas,, I. N.
Title t Inventigetion, of polythionic acids. Part 4. -Sulfuring of
hexathionic acid
Periodical I Zhur. Ob. Xhim. 24, Zd. 5P 790- 7195P May 1954
Abstract I large scale sulfuring of.hemathionic acid was carried out for
-the purpose of obtaining solutions containing acids with more
than a1z sulfur atoms in the molecule. The reaction of thlosul.
furic acid with hydrogen sulfide In concentrated hydrochloric acid
leads to the derivation of n polythionle acid solution which by
Its composition, corresponds to heptathionic but actually repro.
eents a mixture of octathionic and boxathionic acids. Thloaulfur-
ic acid, hydrogen sulfide and sulfurous acid react in a moderately
diluted hydrochloric acid forming octathionic acid. Four refeiL.
ences. Tables.
lnstltu~lon Polytechnical Institute Kaunas, Lith-SSR
Submitted November 27, 1953

S 017/7 8 - -- - 9 - 1 '~'- ~ "' ~`
AUTHORSt Yanitskiy, I. V., Valanchunas, Is No, Tuchayte, 0. Ya.
TITLE: On Higher Polythionic A-.Ids (0 vyssh-j"kh politionovykh kisl,:takh
PERIODICAL: Zhurnal neorganicheskoy khimii, 1958, Vol 3, Nr 9, pp 20871-.90QB
(USSR)
ABSTRACT: The conditions for preparing hexathionic acid were determined.
The preparation is carried out according to the follow-'ng
equation:
2 H 2S203 + H 2S + H 23o 3 " H2S606 + 3 H20
The reaction takes place w4thout any separation of sulfur.
A method of preparing higher polythionic acids with atomic
sulfur in the molecules, up to 18, was devised. The preparation
of the polythionic acids in carried out according to the follcw-
ing general(equation:
6 H 2S203 + 2n-9) H 2S + (r1-3) H2 so3--43 H2 Sn06 + (3n-9) H 201
The prepared polythionic acids in the course of time decompose
under the elimination of sulfur. This decomposition proceeds
extremely slowly at a room temperature of 15-200C. At higher
Card 1/3 temperatures (40-600C) it proceeds rapidly. In the decomposition

On Higher Polythionic Acids
SOV/7 B-3 -9-14138
of H2S 1606 'at 40, 50 and 600C the decomposition curves were
plotted. The velocity constant of the decomposition in ac--ds
with n>9 is approximately equal.
For the first time the following crystallized salts of the
polythionic acids were prepared:
(C 20H16N4)2 H2S13O6 - "trideca-thionate nitron"
(C 20H16N4)2 H2S150 6 - "Pentadeca-thionate nitron"
(C 20H16N4)2 H2S16O6 - "hexadeca-thionate nitron"
(C 20H16N4)2 H2S1SO6 - "octadeca-thionate nitron"
(C
H18")2S606
15
(C 15H18 N)2S806
(C 15H18N)2S906
(C 15H18N)2S1206
(C 15H18 N)2S1306
Card 2/3
hezathionate-dimethyl-phenyl-benzyl
ammonium
cctathionate-dimethyl-phenyl--benzyI
ammonium
nonathionate-dimethyl-phenyl-benzyl
ammonium
dodecathionate-dimeth~,1-phenyl-benzy';'.
ammonium
tridecathionate-dimethyl-phenyl-berizy-L
ammonium

On Higher Polythionic Acids
S07/7B-17 - '.9 113 8
The effect of some inorganic cations on the higher polythioni-,
acids was investigated. Potassium salts were used as metal. cat-
ions. A decomposition of the polythionic acid under the sepa-
ration of coagulata with 20-40 sulfur atomB in the molecules
occurs under the influence of concentrated solutions of metal
ions. The decomposition of the higher polythionic acids under
the influence of inorganic cations probably occurs under the
polarization effect of the metal salts. The properties of the
higher polythionic acids, their formation and decompooition
were discussed.
There are 3 figures, 9 tables, and 18 references, 6 of which
are Scviet.
SUBMITTED: July 8, 1957
Card 3/3

VALANCHUNAS, -I.N.; YANITSKIYt I.V., akademik
Formation of sulfane-monosulfonic acids in thioaulfate
decomposition. Dok.I.AN SSSR 145 no,511052-1054 162.
(WRA 15:8)
1. Kaunaeskiy politekhnicheskiy institut. 2. AN Litovskoy SSR
(for Yanitskiy). (Sulfonic acids)
1. -~,

VALAND, R.
Deter7dning the affect of refraction itpon the transfer from the mainland to an
islend. p. 143.
(OODISNJAK., Yugoslavia, 1955 (published 1956.)
SO: Monthly List of East European Accessions (EEAL) LC, Vol. 6, no. 7, July 1957. Uncl.

-YLULAO R
The prospective plan for 1956. p. 40.
GEOLOSKI VJESNIK. (Zavcd za geoloska istrazivanja Hrvatske i IIrvatsko
geolosko drustvo) Zagreb, Yugoslavia. 1954 (published 1955).
Monthly list of East European Accessions (L~AI) LC, Vol, 8, no. 8, Aug. 1959
Uncl.

L~': "ont'lly Lif-t of Hunzi-rn,

T, 09315-67 SIT (m) /j-,WP -TI UP c)., D
ACC NR, AP6029827 SOURCE CODE: UR10363/66/co2/oo8/1514/~3&,-
AWHO'11: Verger, L. I.; Valanovskaya, A. E.
ORG., Institute of Chemical Reagents and HiGh-Purity Substances (Institut khimich6a4.
kikh--Y6-.1d=v6V I o5ob-o--ch-i-st-y-kK-v-o--oNc-E-Ostv)
TITIZ: Some physicochomicalt thermal and elastic properties of ternary
compounds of the type A-LB11-1dF
SOURCES JW SSSR. Izvootiya. Neorganicheakiyo matorialys v. 2, no, 8, 1966t 1%4~431-~
TOPIC TAGSt semiconductor crystals, copper compound, silver compound, gallium com'-
pound, indium compound, selonido, telluride, colid physical property, 4MLA
7Mr1A~"e4L1J' Zj~.p I
APSTRACT: Eight ternary compounds of typq AIBIIW ore Al is C
~w
BIII "Lenium loi. toll qRR4 or silver,
0
ga]_JjUmL)o~ Andi-vajandCV1 s uzj,~m) wro studiod. The con~;~uncTs
wore:-CiGa5p, CuGaT02, WnS02, CuInTo2p AgGaS02, AgGaT02, Ar,1nS02 and AgInTo2. The
molting pointp microhardnessg densityp thormal conductivity, coofficient of thormal
oxpansion and rate of propagation of longitudinal ultrasonic waves wore moasurod,'and
the modulus of longitudinal elasticity (Young's modulus) and charaotoristic Dobyo tem-
peraturo were calculated, The phase composition was chocked by motallographio and
x-ray analyses. The results of the meas6emonts and calculations are in good agree-
mont with those of other authors, and indicate that covalent forces of Interatomic inr-
2 UDCt 537.311.33:541,,12

L 09315-67
Ap60298
teraction predominate in thO-COmPounds studied. Orig, art, hast I tableo
SUB CODEs //g20/ SUBM DAM 16Nov65/ ORIG RE'Fs 009/ OrH REFj 001

VALLROVIGH, M.P. (Moskva); SHCHUKIN, A.I. (Moskva)
Use of nuclear magnetic resonance in determining the moisture
content of disperse systems and the properties of bound water.
Koll. zhar. 26 no-33386-390 M.V-J'e 164-
(M:ERA 17: 9)

,DESY, A. SOMOGYI) G. VALAS
pectrum of Extensive Air Showers at very large densities
density 6
report submitted for the 8th Intl. Conf. on Cosmic Rays (IUPAP),, Jaipur India,
2-14 Dec 1963

TALAS, Oyorgy
-1
Tpmperature recorder with diodea, FAz fiz koal MTA n ro,6t
471-471+ 163.

VAULMY
CA , A.
"Mechanization of the Pouring of Ing - .
U I gots in Light Casting SI--ops" n 26
(HUMIK, Vol. 3, no. 2, Feb 1353, Praha, Czechoslovakia).
SO: LIonthly List of East European Accessions, LC, Vol. 2, No. 11, Nov. 1953, Unci.

t 4Z_ /J A- I') I,
4085
t~:w Nfulhod (,f
.,ng
j,jJ h~ --l . ti),Yj
k St, nj 0TyrJ,
slilt. ( 'I ' t.
VI,
Al Nlq 1,1
-S With 10 NJ ,

I
I I
11 1

VALASEK, A.
VALASEK,, A. Radioisotopes in the metallurgic industry. P. 53.
Vol. 7, no. 2. Feb. 1957
HUTNIK
TECHNOLOGY
Czechoslovakia
So: East European Accession, Vol. 6, No. 5P May 1957

VALASEK, A.
The use of eddy currents for control purposes in metallur&r. p. 161. (Hutnik
(Hutnik, Vol. 7, No. 5, May 1957, Praba, Czechoslovakia)
SO: Monthly List of East European Accensions (EEAL) LC, Vol. 6, No. P,, Aue 1957, Uncl.

"Care for idg~ quolity in Ue
1()3 (hutnik, Vol. :`0. 5, lc~5". Prahtt,
L
I
;ionthly Indey of bast European jr,? Vol.

VALASEK, A~o
~~z.
Making molds for small steel ingots. But listy 16 no.7;504-506
ii 161.
1. Ministerstvo hutniho prumyslu a rednych dolu.

VAIAL:~--~, Adolf
Prerequisites for the automation of foundries. Slevarenstvi
10 no.5:197-198 My 162.
1. Ministerstvo hutniho prumyslu a rudnych dolu.

VALASEK, Adolf
Outlook of founding industry in the Soviet Union. SIP-varenstvi
10 no.71276-277 Jl 162.
1. Ministerstvo hutniho prumyslu a rudnych dolu.

-VALASEK. Adolf
Raising the labor productivity by,specialization of foundries.
Slevarenstvi 10 no.8:316-319 Ag 62.
1. Ministerst-vo hutniho prumyslu a rudnych dolu.

. 1:
; (t ;

I - ~r
Adolf
Alloy casting by the vibrating gate. Slovarenstvi 12
no,4;152-153 Ap 164.
1. Ministry of Metallurgic Industry and Ore Mines.

W,ASEK, Adolf
- I
Effect of traCe el-eimenta on thr rroper-lies of castjn;~-3.
I-
Slevaranstvi 12 no.6.Z30-231 Je 161,.
1. Ministry of Metallurgical IndusLry arid Ora Mines, 11rague.

VAIASEK, J.
Use of boilers from packaged power plants for temporary solution of central
heating. p. 191.
ZDRVGTNI TECHRIKA A VZDUCHOTECHRUA. (Ceskoslovenska akadende Ved. Ceskoslo-
vensk~ vedecka technicka spolec*nost pro zdravotrd technilcu a vzduchotechniku)
Praha, Czechoslovakia. Vol. 2, no. 4, 1959.
Month3,y list of East European Acce ssions (IZAI), Vol. 9, no. 1, Jan. 19060
Uncl.

VALASEK, J.
Eqiiipment for chemical hardening of sand in t he steel f o- rdry of the
Klement Gottwald Ironworks in Vitkovice. p. 290.
SLEVARENSTVI. (Ministerstvo tezkeho strojirenstvi a Ceskoslovenska vedecka
technicka spolacnost pro hiinictvi a slevarenstvi) Praha, Czechoslovakia.
Vol. 7, no. 7, June, 1959
Monthly list of East European Accessions (EEAI) LC Vol. e, No. 12,
Dec., 1959 Uncl

VALASEK, Jozef
Experience in rape seed cultivation in Slovakia. Prum potravin
15 no.5:222-223 My 164.
1. Palma National Enterprise, Bratislava.

VAIASEK, L.
Finishing work on the prototype of prefabricated houses in
Gottwaldov. p. 81. POZEMNI STAVBY. (Ministerstvo stavebnietvi)
Praha. Vol. 3, no. 2, Feb. 1955.
SOURCE: East European Accessions List (EEAL), Library of Congress,
Vol. 4, No. 12, December 1955.

VALAFTKI L.
Auxiliary devices for the construction of Panel houses. p.20.
(Pozemni stavby, vol. ~, No. ~j May 19571 Praha, Czechoslovakia)
SO: Monthly List of East European Accessions (EEAL) LC. Vol. 6, No. 103 Cept. 1957, Uncl.

4. - ; - I , , , I ~ I , ~ I . 4 ! I , . . . 1. :- ! , - , .
I . I I
-- I - . - , - .
F.P-MK,W~l rt' - * : -,! - '- ', - '- - ~ ~ - ". , -. ~ 1 k ,. , , , , - - :: ., ,
I - - - . I n~- - --:~ . 1.
Paillift 44 no.2.5-3-55 wl!"4. ' - -
- -)Va . -r'.
1. Er)k3ov"'ti 9 "; "t "1i-' CCtt.Wajd;L.

Z/039/63/024/004/007/007
P.192/E382
AUTHORt VAI;;ek Engineer
TITLE: The problem of transients in frequency analysis
PERIODICAL: Slaboproudk obzor, v. 24, no. 4- 1963
229 - 236
TEXT
An automatic frequency-analyzer is based on an
oscillator with a linearly variable frequency and a narrow-band
selective amplifier. Since the input signal to the amplifier has
-variable frequency it is necessary to detaimine the dynamic or.
transient response of the amplifier. 'For the purpose of analysis,
it'is assumed that the amplifier response is of the Gaussian type,
as given by.-
2
In 2 2Af
exp (2)
2 B
where. 6f is tho difference between a given frequency and the
c ent or frequency of the amilifier filter and B is the bandwidth
P
:of the filter at 3 db. The frequency of the input signal is:
Card 1/4

z/o39/63/024/00/oo7/oO7
~The probbm of E192/3382
ca(t) to, 2Tryt w ",%t (3)
0 0
so that the signal is:
X
01(t) exp j 0t - t, (4)
2
-~The output of the Gaussian-filter is therefore given by:
K I + 0.195 x
2
~21
B
2
ln 2 (7)
"x ex
YT 2
1 +t. 0. 195
Card .-2,4

z/o3g/6.3/024/004/007/007;
The problem of 9192/Z3(82
The ratio of the dynamic bandwidth D -at 3db to the bandwidth 11
B, is.
D 1/2 1
1 +.'0*195 2
~2]
(9)
which indicates a widening of the dynamic bandwidth. The respons a
i-of the Gaussian filter has a Gaussian-type envelope and is not
~shifted on the frequency scale. These properties differ from those,
of -the actual filters. Ingpheral, evaluat'ion of the dynamic
response of a filter is difficult and therefore the problem was
solved experimentally foe filters consisting of identical LC tuned
-,circuits and for coupled tuned circ~itso The measurements were
made for various values of 4z a y/B , D/B at -3 db and-for
j~l fM/B , where Af. Is the frequency shift of the maxLmum of the
dynamic response relative to the maximum of the amplitude response*
'The changesin the dynamic.response for varioixs values of the
',parameters were recorded photographically4 The center frequency
band the bandwidth of the measured circuits were adjusted with an
Card 3/4

Z/o39/63/o24/oO4/0O7/OO7 i
:The problem of .... RJL92/E382
feiror otj 5 copese and the frequency variation was mcasured with,
an emor of + 1* 510', while the sweep time had an error of + 29'09 The
loptimum dytramic response o'V the,filters can be definedlin three
ways: 1) the so-called "optimum regime" , definGd by Barber
(Blectronic Engineering, no. 5, 1949, 175-179) corresponds to the
--minimum value of D = D(B); 2) the optimum sensitivity is obtained
.~.when the signal-to-noise ratio as a function of B is a minimum;
3) an optimum response is secured by limiting the parasitic osc.)L-!-
i,lations-to a prescribed value. From the practical point of vi wir
~~the optimum filter can be defined as,the filter,which gives the
narrowest possible spectral line and the highest value of P
Only the Gaussian Tilter meats these requirements.' Such a fLlter
cannot be realize4 in'practice- but can be approached by combining'.
in cascade a number of LC tuned circuits. -Such a filter should
consist of at, least six individual LC circuits# There are
8 figures and 4 tabi as.
~SUBMITTED: October 9, 1962
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