SCIENTIFIC ABSTRACT AKOPYAN, A.Y. - AKOPYAN, I.M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000100710013-8
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 5, 2000
• Sequence Number: 13
• Publication Date: December 31, 1967
• Content Type: SCIENCEAB

AUTHORS: Sayadyan, A.G. and Akopyan, A.Ye. SOIV/160-591-1-42/44
"ITLE: Production of Anhydroifs Sodium Acetate From'the llethanol-V_!tter
Solution of Miethyl Acetate (Polucheniye bezvodnogo atsetata na-
triya iz vodno -metanollnoi;o ra,-tvora metilatsetata)
PERIODICAL: Zhurnal prikladnoy khimii, 1959, Nr 1, pp 233-235 (USSR
ABSTRACT: At the present time t-he methanol-w;.~ter solution of methyl ace-
tate is Lreated with caustic soda, and the weak impure an-
hydrous solution of the sodium acetate, which remains after
distillation of methanol, is lost because of being discarded
into a sever system. 'The authors propose a new method for the
regeneration of the methanol-water solution of the methyl
acetate which makes it possible to obtain the pure sodium
acetate. The essence of this method, as differed from the
practised one, consists in that the mixture of the methyl
acetate and methanol, and not the methanol-water solution of
methyl acetate, is subjected to the process of saponification.
The proposed method cari be employed on the existing installatioyis
4*.'or methanol regeneration in the production of the polyvinyl
Card 1/2 butyral.

SOV/80-59-1-42/44
Production of Anhydrous Sodium Acetate From the Methanol-Viater Solutior of
~:othvl Acetate
There are: 1 table and 1 German reference.
A'. ISOCIATIOW. -Yerevanskiy politekhnicheskiy institut (Yerevan Polytechnic
Institute)
SUBMUTTED; May 69 1957
Card 2/2

QIWYAN, N. B. ; KHMTAN, K. L ; BIKIKDZErrAN, S. P,
Synthesis of a-butyl alcohol from 10-dichloro-2-butene.,Zhuro
,prikl..Kbim..33 no.9:2146-2148 s 16o. (XI" 1j:10)
(Butyl, alcohol) (Butene)

W011YAN, Aknpjagrvandov ARUTYUNYAN, S.B., red.; GALSTYAP, V.
gK32,pdovich., V
tekhn. red.
[Synthetic fibers with a base of polyvinyl alcohol)Sinteti-
cheskoe volokno na osnove polivinilovogo spirta. Erevan
Armianskoe os. izd-vo,, 1961. 107 p. (MIk-1. 15:111
Nextile fibers, Synthetic
(Vinyl alcohol polymrs~

AKOPrAN, A.Ye.; MARKMAN, D.Ye.
-------
Pre_Daration of a spinning bath based on polyvinyl alcohol. Xhis.
volok.no.ltlO-12 193o (KM 16:2)
(Textile fibers, Synthetic) (Vinyl alcohol polymers)
A
I
11 4

ITITIes IICMCxI=j'.vZTFIC=Q&UZIP 'TMxm" IMaDIJAW, eleezric 2nBUIAZIOU
A nev methocl bas been developed for the preparation of PAY(vinyl
formal) (I) film 0.01 to 0.1 Ma. thick.. vize, casting from an li~jto 20~ aqueous
solution of yoly(vinyl alcohol) vith a degree, of to 2300"
zationlof 800
followed by acetalization of the ti3m vith fortmIdbbyde in ste-etone in the :Pre-
sence of 0.3 to o.6% Hal,,. accorang to the reactioh shown in the formula .(see
Card 2/3). To determine the OAI=l ccnditioas., the effects an acetalization of
catalyst cov,6entraticn,, temperature,, and reaction time were studlede The fol-
lowing optimal acetalizatica conditions vere established; reaction time, I hr;
temreerature, 500;'ECI and foxnaldebAe coneentratims, 0.5 and %, respectively.
The degree of polymerization of poly(vinyl alachol)eo" little effect on the
strength of I& A film vith a deMb of wetall Of 60 tO 70%,, PrOPGred

L 1.10
- - 7!p_63_
AMMICII NR: AP30DI*49,
attemptecl by treatment with 1o3 -to 10% solutlaw of, varlow antlaxidante in
acetme, followedby drylM at 3M and testing for beat invist=ce by beating at
150C to the =et of britt1witse , Axmg tho antiodamtAJIused, Agerite, White
and "fitmex Eel were fowd to U the most effective; Wel ability to render I
themaIV stable did na deperd ca the duratica of treatment. Because of its
good mecbwdcal and dielectric 3;a rtles, I con be use& as aAALSgjELc__iwuIaU2p
materlal. OrJLS, art. bav: 3 f1pres and7l. formula.

MSOC= ON:: none
SUDW.M:' OXov63. MQ1 ipJM63 MML: 00
SM C.Cwt ..CH NO REF SM.---- .0101 OOT

rd
cc
r

AKOPYAN, A.Ye.; BOSTANDZHYAN., R.Kh.
A
Hydrolysis of polyvinyl acetate. Zhur. prikl. khim. 36 no.5t
1085-1090 MY 1630 (MIRA 160)
(7~nyl acetate polymerg) (Hydrolysio)

AKOPYAN, A.Ye.; ORDYAN, M.B.; EK M DZHYAN, S.P.; BELYAYEVA, G.M.
r~--
Preparation of hexyl alcohols. Izv. AN Arm.SSR. Khim.nauki. 16 no.'-.
241-245 163. (NIRA 17:2)
1. Laboratoriya polimerizatsionnykh protsessov Armniikhimproyekta.

ACCESSION NR: AP4020517 S/0171164/017/001i'0103/0106
AUTHOR: Akopyan, A. Yo; Ordvan,, He B,O, Ekmakdzhyanj 9, Pe; Belyseva, Go M.
TITLE: Nitration of polyvinyl alcohol
SOURCE: AN ArmSSRq Izv. Xhimicheskiye nauki, v. 17, no.1, 1964& 103-106
TOPIC T&GS: nitration, polyvinyl alcohol, polymerization degree, sulfuric acid,
polyvinyl nitrate, nitric acid
ABSTMCT; The nitration of polyvinyl alcohol w as studied for the purpose of
developing optimum yield and safety conditionst,,Two specimens of polyvinyl
alcohol were used with molecular weights of 925 and 1275 respectively..,The
presence of sulfuric acid (1-10%) In the nitrating compositions suppresses
oxidation and permits an increased yield, The optimum conditions of nitra~tiou
which were determined are; a) ratio of polyvinyL alcohol and nitrating co'mposi-
tions is 1:25; b) duration of nitration is 60 minutes; c) pr~cessLng temperature
is from -5 to IOC; and d)* ratio of reaction mixture and water for precipitation
of polyvinyl nitrate is 1-.0.59 Orige art* haa: 3 tables
Card i/2

. AKOPYAN, A.Ye.,- GRIGORYAN, L.S.; MARKMAN, N.A.
New system of emulsion polymerization of vinyl acetate.
Zhur. prikl. khim. 37 no.2s408-413 F 164. (HERA 17:9)

P Y

16627-65 EwT(m,!,,'l-7PF('(-')/EP*H,"E.,~T'k j I /
ari v i
A. T7 P40, ~~.no Q
A Ye. V y,, D. KI)
SOURCE: Zhurnal prikladnoy khimil, v. '", no. ,.D634, 1601-1605
ABSTI RAC TI: The posssibility, of using a continuous process to obtain palyvinylbu-
of ,~.,pipous dispersion
Ili 2

ACCESSION NR: AP4041800
dered rr-duct It was found that usina polvvinyl aiconot sc m-Licirls
1 ization of vlny~ jwmtatei inerpased,
o ymer
p
Droductivity 3-3. 5 rilles. Continuous hvdrol-;sis instead of batch al C-01-folysis of
i 7, v
:'~SOCI-ATION: ",,one
SUBMITTED: 150ct62 ENNCL: 00
SUE COD ------- VO- REF SOV: 008 OTHER: 004
-71,w, GC.
Card 212

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a AV-'a NJ; lll;ml is ado q viv us"s 31 V
tle*~0600000* *&ease 0 000000

AKOPYANI B. A.
"Reaction of Dicyanodiamide, with Some Derivatives of Benzoic Acid and with 1-
Naphthoic Acid," Bull. Armenian Dr. Ac,d. Sci. US6H, Ser. 11, 190, No. 1,
57-66 (in Russian), 66-7 (in Armenian)
(Chem. Inst. Armenian Acad. Sci., USSR.)

TNR-DJUa'V2YAX, M.A., AKMIYAN, B.A.. WMAN. O.S.
Studying the carbohydrate fractions of plant tissues with the
aid of 3mper chromatography. Izv.AN Arm.SSR.Biol. I Aellkhes.nau-
ki 9 74o.11:27-34 N156. (MiRA 10:1)
1, Botanichoskiy Institut AkRdeiali nsuk Armvanskoy SOR i Institut
shivotnovodetva Ministerstva sel'skogo khozyaystva Armyanskoy SSR.
(Chromatographic analysis) (Plant cells and tissues)
(MonesRacharidom)

IF
t IRE~--R
- - fz ~~,:;4
.:!e ~-,
ia~~ -,,!,

AKOPIANI, - B.A., "land BiD-Sci - (diss) "Chanes of t h.-e ;arbon and riltro-
gen conposition of certain pl-nts auring ti-eir ,rovth in salty soils,"
Yeievan, 1958, 32 pp (Botanical institute, AS Armenian SSR) (KL, 39-60, 114)

AID)PYAN; B;~A;
--76atures of nitrogen ratabilism in plants growing on saline soila.
Ixv. AN Arm. SSR. Biol. I sellkhoz. nauki 11 no.P:63-70 F '58.
(Him lxti)
1. ArnVanskiy nauchno-iseledovatellskiy inetitut zhivotnovodetva i
voterinarit Xinicteretva sol'skogo' khosynystva AmSSR,
(Armenia--Plants, Iffect of salts on)
(Nitrogen metabilism)

AXOPTAN * B.A.
Characteristics of carboWrate metabolism in plants growing
on saline soils. Izv.AN Ars.SSR-Biol. i sallkhoz.nauki 11
no.11:69-76 N 158. (MIR& 11:12)
lo Institut shivotnovodetva Xinisteretva sellskogo khozynystya
ArmSSR.
(Plants, Iffect of salts on) (Carbohydrate metabolism)

A90FUN, B.A.
Changes in the nitrogen metabolism of Arshtati-42 wheat grown in
saline soils. Izv. AN Am. $SR. Biol. nauki 14 no.5:75-80 My 161.
WRA 14: 7)
1. Botanicheskoy institut AN Amyan,,=SR.
(AMENIA-WWAT) (p , EMCT OP SALTS ON)
(NITROGEN METABOLISM)

AKOPYAN D - KAGAN, I.
Industrial diagrams for hot-water heating systems@ Nastroiq
Rose 3 noo5.,34-35 MY '62* (laW. 15:9)
I., Zamestitell nachallnika Glavnogo stroitelinogo
upravleniya pri ispolnitellnom komitete Len!.ngr&dsk6go g6rodskogo
Soveta deputatov trudyashchikhs7a (for a-opyan), 2, Nachallnik
proyektnogo otdala Provektno-konstmktorskcykontory:.
Glavsantakhmontazha Itinisterstva stroitelistva SSSR (fbr Kagan).
(Hot-water heating)

AKOPYAN D.V. inzh. (Leningrad); KAGAN,, I.I.., in,,h. (Leningrad)
New economical central hot,-water heating systems. Vod.i san.lekh.
no,,5-.13--16 It 162. (IOU 15M
(Hot-water heating)

R'Dol"AYELYANY S.S.; KARAFETYAN, V.S.; OSIPCAVA~ E,N.; AK3FYAN,
Partinipation of r-a-.-vinobutyric a!~id in tht~ metahcll-f-am .31"
gl-AmLo and aspartic acids, alan~.nn and glut-Euni.re and 1r,
n-~-,ztralization of amionla in the brain Usime. Vop. blckMm.
moz. 1-.45-59 164.
8.
1. InstAtut 1-4okh!x1i AN A

B.A. (Moskva).
AKOPYAN
14gximum speeds And accelerations of crank linkageg, Mashinovedenie
no.2zl8-28 165. (MIRA 18:8)
-Mz
V6,
f

AKOPYAN, E.As
bar linkage with e-mstr ined- voiccitly wid
Synthes is -6 -a fou-. ~ 1~ L. %
acceleration of the driven link. Izv. MI Amr. SSR. Ser.fiz.-mat.
nauk 18 no.2slV-127 165. Ollff1pi. i8-:6)
1. Hoskovskiy natichio-iss:ledovtitellski..Y- institut rmashir-av~edeni-m.

,,..-'AKOPYAN, E.A6 (Moakva)
Synthesis of Mech~nisms with a given dazree of ir-regalaritY
or the motion of the follower. %ShiLovedenle no.3:31-37 165.
(MIRA 18 16)

AKOFTAN, E.A.; NAZARYAN, S.Ye.
'11~
Effect of organic-mineral fartilizer5 on the deve:!cj=ent of
grapevines. Wcbiolc&--i& no.4.-583-586, '64~c
- . darstva,
1. IrmyansIdy nauchno-Issledc.-uratel'skiy institut xr~nurre
vincdehya i plodovudstva., Yer-evang

A KOP 170, G.
Make a more penetrating study of rice cultivation ("Rice, storage
and-processing," by E.P.Xozlmina. Reviewed by G.Akoplian). '
I Muk.-elev.proui, 23 no.?:32-33 JI '57. (MIRA D.). 9)
1, Glavroye upravleniya khleboproduktov pri Sovete Ministrov
Azerboydzhanskoy SSR.
(Rice)

AKO~IY~Nt_~.; MURZIN.. N.
Letters to the editor. Muk.-eleu. prom. 28 no.9:29 S 162. (MIRA 15:10)
1, 7aveduyahchiy laboratorivey Gosudarstvannoy khlebnoy inspektaii
Plavnogo upravloniya khleboproduktov Ministerstva proizvodstva i
zagotovok sel'skokhozyaystvennykh produktor Azerbaydzhanskoy SSR
(for Akoplyan). 2. Starshiy inzh. Pavlodarskogo oblastnogo
upravleniya proizvodetva i zagotovok s9l'skokhozyaystvennjrlcl
produktov (for Murzin).
(Grain) . ,,.. -

AKOPYA14 G - RIVKIN, B.
Visual aids on economio disciplines@
0 161.
Vop. ekon. no.10:136-340
(MIRA 14'.10)
(Economics-Audio-visual aids)

AKOFUN2 0., insh,
-dam *on and offO owitches. PromArm. 4 no.12:64-67 D 161.
(MIR& 15:2)
,.I& Armyanokiy filial Veasoyuznogo nauchno-isoledovateliskogo
..i instituta, elektromekhqniki,
(Armenia-Electric owitchgear)

AKOPYAN, G., inzh.
Two circuits of electronic a.c. voltage regulators. Prom.Arm- 5
nool:29-34 Ja 162. (MIRA 15,2)
(Armenia-Voltage regulators)

AXOPIYAN, G.
A useful book. Muk.-alav. prom. 28 no.802 Ag '62. (KRA 17:2)
1. Zaveduyusbcbiy laboratoriyey Gosudarstvennoy khlebnoy inspektaii
Glavnogo uprqvlantya klileboproduktov Ministerstva proizvodstva i zago-
tovok sellskokhozyaystvannykh produktov AzSSR.

AKOPYANv G.A.
Experimental verification of methods for determining the
strength of porous fillers. Izv.AN Arm.SSR.Ser.tekh.nauk
no.4353-62 161. OURA l6d)
(Fillers-Testing)

GORDMIE0, A.G., kand.takhn.nauk; ARTONENKO, 1.0.; AKOPIYA,"I, G.A
Nuclear electronia magnetometer vith a long line Avtom.i prib.
4o.3:81-82 JI-S 162. iMM 16:2)
1. Institut avtomatiki Gosplana UkrSSR.
(Magnotmeter)

SKMINO G.I.; AKOFYANP G.A.
-------
Effect of transmission oil quality on the performance of
gears. Standartizatsiia 27 no.2214-19 F 163. (MIRA 164)
(Gearing-Lubrication)

SNUMIN, G.I.;.AKOPYAN. GA.
I ......-
Efficiency and the length of running-in the transmission of traotors.
Trakt. i selfkhomwish. 33 no.6:13-16 Je 163. (MM 16-67)
1. Gosudaratvamiyy soyuznyy nauchno-iosledovatellskiy traktornyy
institut.
(Tractoro-Transmission devices)

AKOFP4,_,.g.-A.; SKUNDIff, G.I.
Studying the loss of power in the tranamissim gears of traa-
tors at low temperatures. Trakt. i selt'khozmaa-h. no.6z14-16)
JeI64 (MM 17 e7)
1. Gosudarstvenn7y soyumyy nauelmo-issledovatel'skiy trak-
tornyy institut.

SIMONOV, M.Z.;-AKOPYAN, G.G.
r~,, ~-- ~~ ~.,. ~.,
New property of lithoid pumice. Dokl. Ali Arm. SSR 36 no.l:
39-43 163. (MIRA 17:1)
1. Institut stroiteltnykh materialov i sooruzheniy Gosstroya
Arwyanskoy SSR. 2. Chlen-korrespondent AN Armyanskoy SSR
Oor Simonov).

YUSHIN,K.P., inzhener; AXOPYAN,G.M.
"ft ft*4
The SKN-4, now asohine,-for harvesting underdeveloped cotton.
Sellkhosmashina no.10:5-6 0155. (M1RA 8:12)
1. Gosudaretvennoys spetsial*noye konstruktorskoye byuro po
khlopka ."
(Cotton-picking mwhinery)

AKOPXANP G,X,; OGOESYANS,D.A.
New data on the age of volcanic sedinentary formations in the
northern and northeastern parts of'the Armenian S.S.R. Izv.
AN Arm.SSR.Geol.i geog.nauki 14 no.6:33-40 161. (MM z 13)
1. Upravleniye geologii i okhrany nedr pri Sovete Ministrov
Armyanskoy SSR.
(Armenia-Geological time)

ZOLOTNITSKAYA, S.Ya.- AKOPYAN, G-0.
Vitamin A content in certain plants of Armenia. Biul.Bot.B&Aa
[Briv.] no.14:75-92 154. (nu 9: 8)
(TOCOPMOL) (ARMIL-BOTANY, KIDICAL)

AXOPW G. 0.
Vitamin B content of Yetches in Stepanavan District.
Izv.AN Arm.SM.Biol. i sellkhoz.nauki 11 no.11:95-98 N '58,
(MIRA 11:12)
lo Botanicheskiy inatitut AN Arm=.
(STZPANILVAN DISTRICT-VRTCH) (TOCOPHEROL)

AKOPYAN, G.O.
,
Vitamin I concentration in corn asislatedIto elemeUtO of mineral
nutrition. Izv. AN Arm.SSR. Biol.neuki 12 n0-8:73-84 Ag ,59.
(MIRA 12:12)
1. Botanicbeskly, institut All ArmSSR.
(TOCOPMOL) - (CORN (MAIZE)--FIWILIZERS AND MANMS))

ZDLMITSWAg S.Ta.1 AKOPYAN, G.O.
Erfect 4af ultraviolet radiation on the reproductive development
and tocOIDber&.1 eiithegis -of plants. JDALAN Arm.SSR 31 no.3slgl-
186 160, (MM -13z12)
1. Botanicheskiy irstitut Akademii, nwk AMan&oy M. Preid-
-jWlemp akademikom AN ArrWanokoy SSR.
(Plantst Effect of ultraviolet rays on) (Tacopberol)
~jl

AKOPYAN, G. 0.
Effect of the methods and duration of'drying and storage on the
variability of the tocopherol content of plants. lzv. AN Arm.
SSR. Biol. nauki 15 no.4:29-35 AP 162* (MIR& 15:7)
1. Botanicheskiy institut AN Arnyanskoy'SSR.
(TOCOPMOL)

AKO.'YAN G.O.; T-UMACY
'ZOLIDTIMSKAY119
New plants. producents of a'J-atcJ-ds with~
tho flora ;f Armenia. AN Arm~ S10,11 41
1. Botanicheskiy institut AN Subml ~~d Irri "1. -10, 1965.

t k1482-66' LVTM: SCTB --DD
ACC INRI AT6013452 SOURCE 60DEO- -UR/3179/6.5/007/000/0183/0-191
..AUTHOR: Zolotnitakayal 3, Ye 0~-
lione pA
level shifts in traviolet-radiation
ril LE: Tocopberol relation to ml
under high altitude conditions
SOURCE:, -Vsei3oyuznoye bofeniobeakoye obahchostvo, Froblemy botanikip
7, 1965,-.'Voprosy biologii i fiziologil rasteniy v usloviyakh
,.-vysokogoriy (Problems of biology and physiology of plants at bi&
altitudes),,-'183-,191
rOPIC TAGS@.,.. vitamin
plant ecology,, UV irradiation,, wh.eat,
agriculture, crop, horticulture
-,ABSTRACT6. TheiYerevan Botanical Garden conducted a series -of experiments
~in 1960 on reprosentatives.,of the gross family (Kondik spring wbesi
requiring lorgdayligbt conditions) and been family (soy bean requiring
short daylight conditions) under high altitude conditions to determine
wbetber increased tocopberol. synthesis can be attributed t6. intensive UV
radiation as suggested In the literature. Groups of experimental plants,:, J
growing at different altitudes were UV-irredisted (PRK-4 mercury quartz -d
ICard 1.12

L 2748246,
ACC NRt A
T603-3452
lamp)'dally at the same time for periods of 10,, 40 or 100 Beca, sna non- _7
irradistea,plents served as controls. Growth, development and tooopherdl
levele.of .plants were.determined (metbods not given). Findings indicate
~that-tooopharol blosynthesis.levels of plants largely depend on altitude-,
-and related ecological conditions,, Tocopberol level shifts in plant
c-enZo-1 se s-r-.-diffarent- slti"da_-.belts---xepresent -a-~one -pa-!7%- curve --1ndioa-:,_
_Q~
tin t '.ion-6 witb.optli Ifti6ne,
gzh& presence: o efinitii- al itudd 81- c6lif
for biosyntbesis- of-1be-vitemin E groupe:: These zones do not'-- aoIncid6';1.__-___
for-tbe various cen-oses.- Co mpared to steppe and meadow plant speo .iess
Maximum t6oopberol-levele for forest plant species are found., at rela-
tively l6wer altitudes. The effect of W-irradiation on growtband
reproduction of short day plants-as well as long day plants Is oomparaUke -
.to the effect'of a abort ligbt'daye W-irradistion markedly increases
tocopberol levels largely~beceuse.of the increased alpba-tocoPber'ol:,.__-_
levels, particularly in abort day plants, The established.relstion.-...1.
,between UV- irradiation and increased tocopberol levels does not.exclude'.
the possibility-of other contributing.foo.tors, -Further investigationd
of this,type are necessary for planning crops with higher tocopberol~z_-.'..
lev6lso- Origo.,art6 has*.- 9~tableeo
SUB CODE:- 06/ 'SUBM DATE*r ~nohe/~' ORIG REFt 012/ OTH REN 007:

AKO PYAN, G. E.
USMMathematics - Magnetic Spectrometer 1 Sep 51
"Concerning the New Magnetic Spectrometer, 11 A. Alikhanyan, Corr Mem, Acad Sei USSRO
A. Dadayan., N. Shost-aloovichs 0. Akopyan) M. Dayon, Phys Inst., Acad Sci Armenian S.T
"Dok Ak Nauk SSSRII Vol ULU., No 1) pp 37-4o
Describes the new magnetic spectrometer of large resolving pwoer, set up at an altitude
of 3,200 meters above sea level and intended for measuring the spectra of pulses
(momenta) and masses of particles composing cosmic rays. The central part of this
device is the electromagnet weighing 76 tons, in the gap of which has been erected a
series of small-di&m counters that permit one to det the coordinates of the particles
in space. The spectra of protons obtained show that the new magnetic spectrograph
actually possesses large resolving power and enables one to distinguish particles with
masses less than ljOOO me of the proton. The results obtained indicate that the
distribution trail of protons practically disappears for values of masses equal to
1,400 me (the mass of the protons During the entire time of the measurement on pulses
(momenta), never once was a trajectory of particles of neg sign recorded or absorved in
the filters,, Submitted 4 Jul 51-
PA 221T65

- - - 0- "' . 9ngs.
iv.6KAkj 'Zu YAOmm'.41 O.K."
Canals
Digging canals by breaking up the soil by mass blasting. Gidr. i mel. h, no. 8, 1952.
9. Monthl List of Russian Accessions, Library of Congress, Dpt-.Amhpr , Uncl.
1952

15-57-4-542BD
Translation from: Referativnyy zhurnal, Geologiya, 1957, Nr 4,
p 188 (USSR)
AUTHOR: Akopyan, G. S.
I---------------
TITLE: Information Gathered During Construction of Irrigation
Canals in the Rocky Soils of Armenian Republic (Issle-
dovaniye i obobshcheniye opyta stroitelistva. orositell-
nykh kanalov v skallnykh gruntakh v usloviyakh Armyanr
skoy respubliki)
ABSTRACT: Bibliographic entry on the author's dissertation for the
degree of candidate of Technical Sciences, presented to
the Yerevansk. politekhn. in-t (Yerevan Polytechnic
Institute), Yerevan, 1956.
ASSOCIATION: Yerevansk. politekhn. in-t (Yerevan Polytechnic
Institute)
Card 1/1

AUTHOR: Akopyar. G.S. (Engin-'e7z) SOV/110-59-If-2/23
TITLE; A W q ~.*. 0, 1 i.
oE " -Fii'vd Power Transforme'.~-.*, of Outy-It
UP to 1~6,0 kVA at 35 kN (Novaya se-riya silo-,ykii mas1:7anykh
transfovmatorc~-,- mosh-ahnicstty-a do %0 kVfi-, mpry-azheniyam
3 5 16)
PERIODICAL: Vestroik E*-'.,ak'-Iopi-vmy~,li"LEtiirost-'LI igr,'ggNr )+,.pr. (USSR)
ABSTRACT., Expaz-1mental pro,*;.-)t~?,pes of a r.-.cw se-Les of trarisformors
type TSM, fc~ 'S and 10 09 have been davelo!"id. These
t:-ansformsrs u3s r--old--r--,.lled stsel for the c-ox-e, c)-val
c~ool'rng tzbes and hwFa othur
ftoxi th-a ruld typa TH. The lassas of Vha new serigs are
20% less 4-1tan th,~ -~Id2 trarisformars are smallor and.
thr-, weight of j-i!. stea and othar is 25
-, p -.- tkhm -n
the now rar,19 is 60 k1FA and the la::~gsst., 1`40, kVA T-'c),,,
prima-,?-7 -4-rc-it;a,,gos of .1,1.5 Fun~". 1~lo k'v' ai,,A se,31~-,nda-r
m
rarkgjxtF, f:~o:i 2~O 7 to 10 16. lutal losses of tte ,)Id and
new sezies a.-c-4 "mt-aTad in VJ.g 1.
The ris3a at ths Of the oil ane cf khF,
Ings ha:vo t0 am,,'! 65~-%-j
Card 1/2 "' 'Ro-
A the 60 i~-4, 3~i ky transfo~-m,:,)~! J."

SOV/110-59-4-2/23
A New Series of 01-1-Filled Power Transformers of Output up t~;
56o VA at 3 5 V -
given J,n,Fig 3. The main difforenoe betwaon the dimens-
ions of the 10 V and 35 V transformers is in the
height. The type of core construction that should be
used with cold-rolled steel in distribution transformers
As consider-ad. Static s~-xcczins are uqqd ti) rodtv.,e
transient over.-voltages betwaon turns. It is concluded
that by the use of pressboard barriers alearances to
earth have been mu~~h reduced. The losses and weights
have been reducad b-y the use of cold-roll9d steel. The
Static sor6ans 5hould be of lighter construction than at
Card 2/2 Pr"Grlt-
There are 3 figures. no literatara referenaea.
SUBMITTEDs Decembe-, 22, 19~'a

SOV/110-59-8-3/24.
AUTHORS~~ Pogosyan, Z.Kh, and Gantseva, T.L. Engineers.
TITLE: 6-kV and 10-kV Transformers with Aluminium Windings.
ZjM4IODICAL: Vestnik dlektropromyshlennosti, 1959, Nr 8. pp 10-13
(USSR)
ABSTRACT: It-will be advantageous to use aluminium instead of copper
for transformers of output up to 1800 M. The physical
characteristics of aluminium and copper are compared in
Table (1). The dimensions, weights and turns ratios of
aluminium and copper windings are compared for the case
when the aluminium winding is 1.46 times the height of a
copper winding. If, in order to avoid excessive production
costs, the cross-section of transformers with aluminium
windings is maintained the same as for-copper, the height
of the windings will be about doubled and the copper and
aluminium-wound transformers then differ only in height.
Table (2) gives a comparison between designs of transformers
ranging from 20 to 100 kVA with aluminium and with copper
windings. The overall weight of the al=inium-wound irans-
formers is the greater by 4 to %. Aluminium windings may
well be used on low-voltage transformers where the insulation
cost is not excessive. The relatively low mechanical strength
Card 1/3.

SOV/110-59-8-3/24.
.6-kTand 10 kV Transformers with Aluminium Windings.
of aluminium windings makes it difficult to use them for
large transformers, although 70-k-VA transformers with
aluminium windings have been manufactured by the English
Electric Company. Under short-circuit conditions trans-
formers with aluminiun windings take twice as long to heat
up to 2500C as do those with copper windings. There is
little difference in manufacturing procedure when aluminium--
is used, except in making joints and terminations. Existing
jointing methods are adequate but it would be advisable to
use copper terminations-for the windings, and for this
special equipment is required. Gas welding was used in
the manufacture of experimental transformers with aluminium
windings; this method of jointing is reliable but laborious.
Cold welding was used to join copper terminations to the
alumini= conductors, but because of the dissimilar
coefficients of expansion of copper and aluminium the
joints do tot withstand high temperatures and are hence
not well adapted to oil-cooled transformers.
Experimental transformers with aluminium
Card 2/3

SOV/110-59-8-3/24.
p-kV and 10-kV Transformers with Aluminium Windings.
windings were made for an output of 100 kVA at 6 kV. An
existing standard transformer made with hot-rolled steel,
a transformer with cold-rolled steel and aluminium
windings, arLd a transfo:rmer with cold-rolled steel and
copper winding, are compared in Fig (1). It is particularly
important to use cold-rolled steel in conjunction with
aluminium windings. The-core and coils of copper and
aluminium-wound transformers are illustrated in Fig (2).
The transformer with aluminium windings is much higher,
although the weight of the cores is the same. Overall
weights, and weights of oil, for transformers ranging from
20 to 100 kVA with copper and aluminium windings are given
in Table (3).
There are 2 figures, 3 tables and 3 Soviet refersnees.
SUBMITTED: April 13, 1959.
Card 3/3.

210)
AUTHORSs Akogan G.S.F Narikyan, G.A., SOV22-12-1-6/8
r 3. oj- 'Ile
rjr
0 n o
TITLEt Some new Schemes for the Hodoscope (Nekotoryye novyye skhemy
diya goaoskopa)
PERIODICALt Izvestfy&.Akademii_naak krntyanskoy SSR,Seriya fiziko-matemati-
cheskikhij na"k, 1959,'V01 12, Nr 1', pp 85-~92 (USSR)
ABSTRA.CTs The authors describe the experiences which have been made
during the last years by the mountain expedition of the FIAN
of the Armenian SSR with its scientific equipment and with its
operation - Especially there are described a neon cell
designed by the participators of the expedition for hodoscopes
with self-quenched counters, a method for supply of several
self-quenched Geiger-MUller countersp and two schemes for the
hodoscopes. The authors thank E. Agasyan for the installation
of the coincidence circuit, L. Grigoryan for his participation
in the experiments and T.L. Asatiani for the interest in the
works described.
Card 1/2

4
Some new Schemes for the Hodoscope 90V122-12-1-610
There are 5 figures, and 3 references, 2 of which are Soviett
and I American.
ASSOCIATION:Fizicheskiy institut AN Armyanskoy SSR (Physics Institute,
AS Armenian SSR)
SUBMITTED% August 20, 1958
Card 2/2

21(3)
AUTHOR: A0 a ~n- SOV122-12-1-818
TITLE: Decade Counter on Germanium Triodes With Regiatration of the
Counting on Noon Tubes (Dgs*yatichnyy schetchik na germa-
niyevykh triodakh s registratsiyey otecheta na neonovykh
lampakh)
PERIODICALs Izvestiya Akademii nauk Armyanskoy SSR,Seriya fiziko-matemati-
cheskikh nauk, 1959, Vol .12, Nr 1,' pp 99-102 (USS-R)
ABSTRACTt The author describes the scheme and the method of operation
of a decade counter with Soviet junotion-type germanium triode
P 6 D 9 where the registration is carried out on neon tubes
with the aid of-a Soviet P 2 A - triode. The counter has been
developed by the author under assistance of V.M. Kharitonov)
Doctor of Physico-Mathematical Sciences.
There are 2 referenceag I of which is Soviet and 1 American.
ASSOCIATIOlt Pizioheskiy institut AN Armyanskoy SSR (PhysicB Institute
AS Armepian SSR)
SUBMITTED: June 14, 1958
Card 1/1
Uscomm-DC-61,396

ACCESSION NRV AP4033106 s/0120/64/000/002/0050/0057
AUTHOR:_Ako2j~"~ S.; Dayon, M. I.'; Knyazav, V. M.. Solodnikov, I.
'ivestigation of spark chambers with a large memory
TITLE:
SOURCE: Pribory* i tekhnika eksperimenta, no. 2, 1964, SO-57
TOPIC TAGS: spark chamber, spark chamber telescope, Nor-Amberd telescope.:
air spark chamber. air argon alcohol spark chamber
ABSTRACT: A thr a ~ -flat -chamber telescope installed in Nor-Amberd (Armenia)
at Z. 000 m altitude is described. To reduce the error in deter=ining trajectory.
one electrode in each chamber is subdivided into 5 separate glass plates covered
with SnOt and electrically independent. Deviations of the spark from the particle.
nath are evaluated; h-v pulse delays of 2 and 30, naicrosec and clearing fields of
LOO Y/cm are cons'idered. The effect of over-voltages on the accuracy of path
localization was experimentally studied. These conclusions. are offered: (1) In,
the chambers filled with the air -ar Son -alcohol -vapor mixture, the mean-square
deviation of the spark from the particle path is about 0. 2 mm: it does not vary
with the h-v pulse delay upCto at least 30 microsec; (2) The open-air ci-a era
have a lower accuracy of path localization; this accuracy esseatia.Uy improves
Card 1/Z

ACCESSION NR: AP4033106
-With a higher efficiency; the mean-square deviation may be as high as 0. 6 Mm,
(3) In the large-mem6ry chambers. most-spark deviations have a low value; still,
a large number of sparks occur outside the trajectory. several rows of chambers;
should be used to exclude the latter case.'- "The authors are deeply grateful to
A. 1. Alikhanyan for his interest and help--in carrying out this project; to U. U.
Veremeyev for designing and building the mechanical part of the outfit. to V. Kh.
Voly*nskiy and L. F. _'X1imanova for their' participation in the initial phase of the
project; to It. X. Bolotov, M. I. Devishev, and A. P. Shmeleva for their part in.
data processing and discussions; to G. A. Marikyan.- K. Matevosyan, R.
Yerendzhakyan, V. A. Mishcheakov, and also to the service personnel of the
station for their great assistance in carrying out the project. 11 Orig. art. has:
figares, 4 fox*mulas.'and I tab 0-
ASSOCIATION: Fizicheskiy institut im. P. X. Lebedeva AN SSSR (Institute of
:Physics, AN SSSR); Fizicheskiy institut GXAn SSSA (Inatitute of Fhysi~s.#- GKAE
SSSR)
SUBMITTED: 29Mar63 DATE ACQ: liMay64 ENCL: 00
SUB CODE: XS, PH NO REF SOV: 003 OTHER: 002.

L 6945-66 EVJT(1-)&9/EWA(h)_ GW
ACC NN AP 5026237 SOUWN CCDE: UR/0048/65/029/010/1953/1956
~AUTHOR. Akogyan, G.S.; Shmoleva, A. P.
OWj:: none
TITLE: On the ionizing.particles accompanying approximately 170.DeV nucleons at
2 km altitude /Report, All-Union Conference on Cosmic Ray Physics hold at Apatityl
24-31 August 1964/_
SOURCE: AM, SSSR, Izvestiya. Seriya fizicheskayn, v.29, no. 10, IP65, 1953-1955
TOPIC TAGS: Primary cosmic ra secondary cosmic ray, spark chamber, nucleon,
uon, ionization chamber
ABSTRACT: --The, authors have investigated-the ionizing particles Accompanying high
-energy cosmic ray nucleons at 2-km altitude in order to obtain data to aid in the
interpretation of cosmic ray investigations of high energy nucleon interactions.
The particles were.recorded with a telescope of three 1300 =2 spark chambers 'An
the 30 x60 x 140 cm3- gep o2 an electromagnet which provided a 10 kOe field. Below
thetelescopt was a 10 tray Ionization calorimeter containing.800 g/cm2 of iron
for measuring the energy of the high energy primary. Primaries with energies from
100 to 300 BeV were observed. The exponent in the energy spectrum of these particles
was 1.8�0.8. The momenta of the accompanying ionizing particles were measured with
the magnetic field and the spark chambers. Particles with momenta less than 1 BeV/c
Card l/2 -

KAZARYAN, G.A., kand. med. nauk; ARUnUNYAN, V.M.; ARUTYURYAN., R.R. )
AKOPYAN) I.G. -
Clinical aspeots and diagnosis of sL-ruma nodosa subjected to
malignization. Vop. rent. i onk. 7011-319 163 (MIRA 1797)
-- ~ 4. -

SUBJECT USSR /,PHYSICS CARD I / 2 PA - 1494
AUTHOR ~,JASTnBOEVA,T.N.,.,AKOPJAN,I..G.
TITLE The Investigation of the Impulse Excitatioll and Forcible
Extinotioii of quartz' Oscillations.
PERIODICAL- ~adiotechnika, 11, faso. 9, 39-45 (1956)
Issued: 10 1T5_~ revie.wed*: 11 / 1956
Modern impulse technique makes use of installations which generate the electric
time scale. Here the accuracy with which time is.measure& is determined by the
stability of the generator of the scale graduations. Several works deal with the
conservation of scale graduations by means of a quartz resonator. In view of the
fact, however, that hitherto such works have been characterized by a number of
defects, the present work is devoted to a theoretical and experimental examina-
tion of the impulse excitation of quartz oscillations as well as of some methods
of forcible extinction. A complete solution for excited oscillations was found for
the case in which a signal with rectangular impulse acts upon quartz. The optimum
duration of the impulse, in the case of which the excited oscillations have the
greatest amplitude and the lowest number of higher harmonics, is determined. Four
methods of forcible extinction of quartz oscillations were investigatedi
a) furnishing quartz with an active shunt-resistanoe, b) extinction in a scheme
with negative feedback coupling, o) extinction by means of an equilibrium schemet
d) impulse extinction. It was found that, with the help of the two first mentioned
methods, the extinction of the quartz oscillations can be raised by only one order.
Computations and experiments carried out by means of an equilibrium scheme have

AKOPYAN, I.G.; bTRATONOVICH. Moo
NotabliBhment of synchronism in a self-oscillator in the presence of
of fluctuation noise. Nauch- 4okl. vys. skoly; fiz.-mat. nauki no.l:
162-166 '58. kMIRA 12:3)
I.Moskovskiy gosudarstvennyy univeraitet im. M-V, Losonosova.
(Qscillators, Xlectron-tube)

AKOnAN, 1.G.; STRATONOVICH, R.L.
-Zoo'hment of am
M
U plitude in a synchronized self-oscillator in the
presence,of fluctuation noise. Nauch. dokl. vys. skoly; fiz.-Mat.
nauki nool;167-172 158. (MIRk 12:3)
ldloskovskiy goeudarstvenn" univereitet im, N.V. Lomonosova.
(Osoillators, Xlectron-tube)

"The Inffluence of Fluctuation Noise on the Self-Oscillator Synchronization."
report presented at the All-Union Conference on Statistical Radio Physics,
Gortkiy, 13-18 October 1958, (Izv, vyssh uchev zaved-Radiotekh., vol. 2,
No. 1, pp 121-127) COMPLETE card under SIFOROV, V. I.)

9(3) SOV/162-58-3-2/26
AUTHORS: Ivanov, V.N., and Akopyan, I.G.
TITLE: The Determination of Stat' 'stical Characteristics of
Random Processes by Means of an Electron-Beam Tube
(Opredeleniye 3tatiaticheskikh kharakteristik slu-
chaynykh protsessov s pomoshchlyu elektronno-luche-
voy trubki)
PERIODICAL: Nauchnyye doklady vyeshey shkoly, Radiatekhnika i
elektronika, 1958, Nr 3, pp 13-19 (USSR)
ABSTRACT: The author explains a simple method for measuring
the correlation factor and other moments of static
random processes by means of an electron beam tube.
A similar method was already described by L.W. Orr
fR-ef 17 and A. Males ZRef g/. Measuring the correla-
tion factor may be simplified by using parameters of
the laws of distribution which may be easily deter-
mined. This method is based on the parameters of
one-dimensional laws of distribution, which are suit-
able for arbitrary static random processes. The ap-
Card 1/3 plication of the electron beam tube permits obtaining

SOV/162-58-3-2/26
The Determination of Statistical CharaoteristieB of Random Proces-
seb by Means of an Electron-Bpam Tube
the statistic characteristic of random processes in
a simple manner, while other methods require complic-
ated equipment for the same purpose, for example,
for measuring the FM signal phase fluctuation. The
method was tested experimentally and figure 2 ahows
the test arrangement. The experimental apparatus
consists of one 10-75 ke noise generator, one 0-20
microsecond delay line, one phase inverter, one sum-
mator, one oscillograph, one sensitive photocell
PSK-1 and one microammeter. The oscillograph has
one-dimensional random scanning and is used in con-
nection with an optical wedge. For establishing the
accuracy of the method, additional investigations
are necessary; however, according to results avail-
able at the present time, it may be predicted that
the method will be applicable under laboratory con-
ditions in many practical cases. There are 2 dia-
Card 2/3

SOV/162-58-3-2/26
Tht Determination of Statistical Characteristics of Random Proces-
se~s by Means of an Electron-Beam Tube
grams, 1 graph, and 4 references, 1 of which is Eng-
lish, 1 French and 2 Soviet.
ASSOCIATION: Fizicheskiy fakulltet Moskovskogo gosudarstvennogo
universiteta (Physics Department of the Moscow State
University)
SUBMITTED: May 10, 1958
Card 3/3

AKOP'XANI I.--G, p Cand of TlWs-Math Sol -m (diss) InveBtJ# of t)e Influence of the
Fluctuating Disturbances on the Processes of Synchronization of a IaW Generators
Moscow, 1959, 8 pp (Moscow State Unlyim Lmonosov) (XL, 6-60t 120)

SOV/1-20-59-1-37/50
AUTHOR: Akopyan, I. G.
TITLE: A athod for OBeilloo-raphic Determination of the Distribution
Laws of Random Quantities (Sposob ostsillograficheskogo
izmereniya zakonov raspredeleniya sluchaynykh velichin)
PERIODICAL: Pribory i tekhnika eksperimenta, 1959, Nr 1, P 137 (USSR)
ABSTRACT: To measure one-dimensional distribution laws of stationary
random processes one normally uses discriminators. The osci-
llographic method (Ref 1) is more convenient in the case of
processes which do not contain in their spectra an excessive
amount of low frequency components. The advantage of this
method is great simplicity and the fact that the distribut-
ion law can be recorded continuously instead of measuring its
separate values. The principle of the method is as follows.
If a random signal ~(t) is applied to one of the plates of
a CRO then a one-dimtnsional random sweep will appear on the
screen. if is a stationary random process then the
average briggles)s on the screen at points along this sweep
is proportional to the probability density at the given point.
If such an oscillogram is photographed the required distribut-
ion law can be determined with the help of a densitometer.
However, non-linear properties of photographic materials com-
Oard 1/3 plicate the method. It is simpler to record the values of the

SOV/120-59-1-37/50
A Method for Oscillographic Determination of the Distribution Laws of
Random Quantities
average brightness of the screen by placing a photomultiplier
with a suitable screen and a small aperture against the var-
ious points on the screen. The output of the pholvomultiplier
is then proportional to the brightness. The present author
haE( developed a met~6'cl"WlAch is fully..aptomatic and makes the
whole procedure much quicker. In this method two CRO's are
used in parallel. The various points along the random sweep
are brought against the ap6rture of the photomultiplier auto-
matically by means of a suitable circuit while the output of
the photomultiplier is applied to the vertically deflecting
plates of the second CRO inihich the horizontal sweep is syn-
chronized with that of the first CRO. In this way a graph of
the distribution law is obtained directly on the screen of
the second CRO and may be photographed. Fig 1 shows a dia-
gram of the circuit and Fig 2 a typical distribution law
CZ
Card 2/3

SOV/120-59-1-37/50
A Method for Oscillographic Determination of the Distribution Laws of
Random Quantities
obtained with it. There are 2 figures and 1 Soviet reference.
kSSOCIATION: Fizicheskiy fakulltet MGU (Department of Physics of the
Moscow State University)
SUBMITTED: January 21, 1958. -
Card 3/3

1','0 67534
AUTHOR: '&oRyan' I.Q. sov/14l-2-3-11/26
--- "" ~l
TITLE: Experi~erxta nvestigation of the Influence of the
Fluctuation Noise.on the Synchronisation Processes in
an 0scillat-0-r',;-
PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy, Radiofizika,
1959, Vol 2, Nr 3, pp 4o8 - 4i9 (USSR)
ABSTRACT: The problem was investigated theoretically by a number
of authors (Refs 1-5). In the following, the processes
of continuous or pulse-type synchronisation in the
presence of fluctuation noise were investigated experi-
mentally. The investigations were carried out on a
low-frequency vacuum-tube oscillator with a tuned circuit
in the grid. The system operated at 40 kc/s. A
synchronising signal (continuous or pulsed) and the noise
were applied directly to the resonant circuit. For this
purpose, small resistances were introduced into the
inductive and capacitative braiiches of the circuit and
the signal and noise were applied to the resistors by
Card 1/7 means of special cathode followers, having output

SOV/141-,213-11V26
Experimental Investigation of the Influence of he F, uctuation
Noise on the Synchronisation Processes in an Oscillator
resistances lower than 10 JL. The noise generator
consisted of a noise diode and a three-stage low-frequency
amplifier. The frequency characteristic of the amplifier
was such that the maximum amplIfication occurred at
40 ke/s and.its bandwidth was about 50 kc/s. The
fluctuations could therefore be assumed to be in the form
of white noise. The experimental equipment permitted
measurement of the unidimensional phase and amplitude
distvibution.laws and the determination of the average
oscillation frequency and its deviation from the
synchronising signal. The phase fluctuations were
measured by means of the equipment shown �n the block
schematic of Figure 1. The synchronising signal was
applied to the investigated oscillator. Simultaneously,
the synchron-ising signal Was applied to a Schmitt trigger
(via a phase inverter) which operated tifice during a
period and produced a square wave brm, whose edges
correspondedto the zeros of the signal. The square wav
Card 2/7 formwas differentiated and the positive "spikes" so

~,:' 5 3 4
SOV/ 1.41-2-3-1.1/26
Experimental Investigation of the Influence of tne Fluctuation
Noise on the Synchronisation-Processes in an
o6tained were applied to a blocking ose illaror. The out ri~r
pulses of the blocking oscillator discharge tti.e
which produced a sawtooth wave form havin,-, a good
linearity and a short flyback. The sawtooth was applied
to the y input of an oscillograph. The voltage from -the
resonant circuit of the oscillatorwas applied, via the
cathode follower, to another Schmitt trigger which operated
in a manner described above. The spikes obtained from
the resulting rectangular wave formikv-e applied to the Z
Input of the oscillograph and provided brightness markers
on the sawtooth voltage. In the absence of noise, the
oscillatorwas synchronised and the brightness markers
always fell in the same phase of the sawtooth wave form;
consequently, the whole set of the brightness markers lay
on a horizontal line, whose posItionwas determined by the
constant phase shift (p 0 (Figure 2a). In the presence of
noise the phase shift varied randomly and deviated from To
Card 3/7 This Is Illustrated in Figure 2b. The phase distribution 4-

67534
sov/l4jL-2-3_li/p6
Experimental Investigation of the Influence of the Fluctuation
Noise on the Synchronisation Processes in an Oscillator
law w((p) was also measured by employing a cathode-ray
tube with a photo-resistor (Refs 8-10). The photo-
,resistor was fitted with a diaphragm and situated in
front of the screen of the tube; this permitted the
determination of the average brightness of the markers
at various levels of the sawtooth wave form. A block
schemat'ic of the measuring equipment for w(y) is shown
in Figure 3. The measurement of the amplitude
fluctuations was effected by the equipment of Figure 1,
except that the signal of the investigated oscillator
ms applied directly to the y input of the oscillograph
and to a quarter-wave delay line, from which the signal
applied to a Schmitt trigger; the rectangular wave
form from this triggerwAs differentiated and then
applied to the Z input of the oscillograph. An example
of the amplitude fluctuation oscillogram is shown in
Figure 4b. The transients of the phase and amplitude
were also investigated by means of the same equipment,
Card417 except that the synchron1sation was effected by means of,,,J,,-/

67534
sov/141-2-3-11/26
Experimental Investigation of the,Influence of the Fluctuation
Noise on the Synchronisation Processes in an Oscillator
rectangular radio pulses. Examples of the phase
transients in the absence of noise are shown in Figure 5a;
the same process in the presence of noise is illustrated
in Figure 5b. The frequency of the oscillator was measured
by converting its wave form into pulses whichiere applied
to an electronic counter. This was gated (opened or
blocked) by means of a quartz-crystal chronometer. The
experimental data were compared with the calculated
results obtained by employing the results of a number of
works (Refs 3-7). In the analysis, it was assumed that
the system could be described by Eqs (1), provided the
conditions defined by Eq (2) were fulfilled. The notation
in Bqs (1) and (2) is as follows:
A and 99 are the amplitude and the phase of
the oscillations;
A0 is the amplitude of the oscillations in
Card-5/7 the absence of noise or synchronising
signal;

67534-
SOV/141-2-3-11/26
Experimental Investigation of the 1--fluence of the Fluctuation
Noise on the Synchronisation Processes in an Oscillator
b is the linear part of the increment of the
system;
w0 - w As the detuning;
x(w) is the spectral density of the noise, while
.41(t) and 42 (t) are two auxiliary independent
random functions having zero average values.
The conditions to be fulfilled by the synchronis:Lng
signal and the noise are defined by Eqs (3) and (4).
The phase fluctuation is described by Eq (5), where
X A2 4 , T) %A P.a where toE/2A.) and
0 -0 0 0
IiD is the B~rgsel function of the imaginary argument.
The calculated values of w(q) are shown in Figure 7a.
The amplitude distribution law Is expressed by Eq (6),
Card.6/7 where N is the normalising factor. In practice, however

67534
sov/14l-2-3-11/26
Experimental Investigation of the Influence of the Fluctuation
Noise on the Synchronisation Processes in an Oscillator
it is only possible to measure the distribution function
defined by Eq (7). The values of this function are
plotted in Figure 7b. The phase deviation is expressed
by Eq (10); the values of this function are shown
graphically in Figure 8. On the basis of the experiments,
it was found that at large values of the signal-to-noise
ratio and at small detunings, the phase distribution obeys
the normal law. The author expresses his gratitude to
V.V, Mi&ul�n for suggesting the subject and directing the
work. There are 9 figures and 11 references, 1 of which
is English and 10 are Soviet.
ASSOCIATION: Moskovskiy gosudarstvennyy universitet (Moscow
State University)
SUBMITTED: December 29, 1958
Card 7/7

S/109/62/007/008/002/015
D409/D301
AUTHORS: Alopyan, I.G. and Landa, P.S.
TITLE; Overtone synchronization of self-oscillations in
the.presence of noises
PERIODICAL: Radiotekhnika i elektronika, v, 7. no. 8, 1962,
1285-1293
TEXT: A Thomson-type self-oscillating system is considered.
The s~7stem is under the influence of a harmonic. external force whose
.Lrequency is almost double-the frequency of the free oscillations,
and of a noise whose spectral density is concentriated in the frequen-
cy range of the synchronizing signal. Assuming that the correlation
time Veor of the random noise ~(t) is small, it is possible to con-
sider the amplitude and phase of the oscillations as Mar1cov processes
,instein-Fokker type equations. Only sta-
and to describe them by Z
tionary. solutions of these equations are considered. From the solu-;
tions it is evident that the amplitude distribution in the Case of
overtone synchronization differs substantially from that of funda-
Card 113

s
9/62/007/008/002/015
A0 r,
Overtone synchronization D409/ 301
mental-frequency synchronization, whereas the phase*distribution
does not differ. Formulas are derived for the amplitude- and phase
dispersions of the output signal. Conclusions; An oscillator, syn-
chronized with a harmonic external force, whose frequency is double
that of the oscillator, behaves like a narrow-band nonlinear filter.
The phase fluctuations at the oscillator output do not*dcpc-Lid on the
form of the nonlinear filter-characteristic, but are entirely detcr-
mined by -he signal-to-noise ratio Ds at the input, and by the ma"-
nitude of mistuning. The magnitude of the phase fluctuations in the
case under consideration coincides with that in an oscillator, syn-
chronized x-rith the fundamental frequency. Hence, in this respect,
resonance of the second kind does not offer any advantage. On the
other hand, overtone-synchronization is-advantageous with respect to
reducing the amplitude fluctuations. These fluctuations depend o-n
Lhe form of the nonlinear characteristic. From the graphs and the
formulas given, it is evident that the amplitude dispersion about
its mean value, is considerably smaller than in the case of fuuda-
mental-frequen y synchronization; in the particular case of optimum
excitation, the difference is of the order Dc :~- 1. Thus, it is con-
Card 2/3
D
~2

Overtone synchronization
S/109/62/007/008/002/015
D409/D301
venient to use syr~chronized oscillators, in receivers with amplitude
~limiting, as narrow-band nonlinear filter-limiters. The above re-
sults are also of interest in estimating the fluctuations in freque-a-
cy-divider circuits. There are 2 figures.
,~ssbci.xftw: Fizicheskiy falcul'tet Moskovskogo gosudarstvennogo
universiteta im. M.V. Lomonosova (Physics Division
of Moscow State University im. M.V. Lomonosov)
SUBMITTED: November 29, 1961
Card 3/3

AKOPYANI I.G.
EsW.--lishment of a synchronous mode of operation in an
eleitron-tube oscillator in the presence of noise.
Radiotekh. I elektron. 11 no.1:32-41 Ja 166.
(I-MIA 19: 1)
1. Submitted August 21, 1964.

i 0. _~JD
Ap6oi8og _S_ -0- U.-R-C-EF 60- D_ EW6 6 ~ 6~6_6 f3 C6 9 1-0 C i ~ -10 5 4 7
AUIIIOR:, Akopyan, 1. Eh. ZIatkinp L. B.
-----------
ORG: Physicotechnical Institute im. A. F. loffe, Acade,-rQr of Sciences,SSSR (Fiziko-
-bekhnieNe-sTci'y--I-ns-tTiu-i-AINre-=3'n-a-u-k--9011) ingraEUE-HE-eVni"Versi y_
_2~hdancv (Leningradskiy gosudarstvennyy
TITLE: optical reflection spectra of siqgle-crystal ZnSiP2
SOURCE; AN SSSR. Doklady., v. 168, no. , 1966, 5k7-Yt9
TOPIC TAGS: zinc compound optic material, light reflection, absorption edge) spin
orbit interaction, energy, band structure, chemical bonding, light polarization,
valence band , vP PC' -SPCC rie(Jnt,
ABSTRACT: This is a continuation of earlier ifork by one of the authors (Zlatkin,, IV
Vsecoyuzn. sovesbeh. po fotoelektricheskim yavleniyan, v poluprovodnikakh, Tez. dokla-
day) Odessa, 1965, p. 46 and elsewhere), vho synthesized ZnSiP2 and investigated come
of its physical properties, photoconductivity, and absorption coefficient. The pre-
sent paper is devoted to a study of the reflection spectra beyond the edge of their
fundamental absorption, in order to obtain data on the band structure of these crys-
tals. Single'optical reflection was measured with apparatus consisting of a double
monochromator (MM-4), photoelectric recording apparatus, and a hydrogen ]Amp. The
reflection spectra vere measured at small angles of incidence, -10*, and at a temper-
ature of 300K. A Glan yrism with air layer was used to investigate the dependence of
'I
1/2 UDC: 548-0: 535

ACC NRI Awoc)5861 SOURCE CODE: uR/O18l/66/o08/Ol2/_'A3/3"
AUTHOR: Akopyanj. I.. Grigorlyanp So So; Yakavlev, A. So
ORG: Joeningrad State University im. A. A. Zbdanov (Leningradakly gosudarstyenrWy
universitet)
TITLE,: Luminescence of ZnSiP2 crystals
SCURCE% Fizika tverdogo telap ve 6) no* 12) 19661 3643-3646
TOPIC TAGS: zinc compound optic material, luminescence spectrum, absorption edge)
line broadening, ir absorption) absorption spectrum) exciton
ABSTRACT: 7he authors tested the low-temperature luminsecence of ZnSiPZ crystals
obtained by the gas-transport reaction method) in order to compare their properties
with those of III-V semiconductors. The temperature range was 42 - 77K and the ex-
citation source vas a mercury lamp. The luminescence spectra were obtained in a
range 5500 - 6700 A using an ISP-51 spectrograph (30 A/mm dispersion). -,he crystals
bad a sharp absorption edge. The spectrum consists of two groups of narrow lines,
each containing a series of equidistant intense lines broadening toward the long-wave
side. The wavelength, frequencies, and possible interpretations of the lines are
giYen. Measurements were also made of the infrared absorption spectrum in the 50 -
250 cel region, where two absorption bands were observed. When the temperature was
raised from 4.2 to 77K, the intensity of the short-wave band of luminescence dropped
almost to zerop whereas the intensity of the long-wave band increased. It is pro-
V2

ACC NRt Moo%61
posed that the line luminescence is due to radiative recombination of the bound
excitons, in which both purely electronic transitions and transitions in which one
or several phonons are produced participate. The presence of two line groups may
indicate the presence of two exciton complexes. The authors thank Ye. F. Gross for
continuously guiding the works A. 5h. Karamyan for plotting the infrared spectrum,
and E. Osmanav for supplying the ZnSiP2 crystals. Orig. art* has: 2 figures and I
table*
so cmi: 2q/ mm DATs: o6"n66/ ORIG IW: 002

AXOPTAN, I.M., kand.med.nauk
Rate of tuberculosis infection in Adults of Stepanovan district,
Armenian SSR in 1956-1957 [with summary in French]. Probl.tub.
36 no.2:12-14 '58 (MIRA 11:5)
1. Glavnyy vrach Stepanavenskogo protivotuberkulmogo dispansera.
(TUMCUWSIS, PUINONARY, prev. And control
mnse survey In Russia (Rua))

AXOPTAN, ;.H., kand.med.nauk
Tuberculous infection in children and adolescents In Stepanavan
District, Armenia, 1945-57. Probl.tub. 37 no.3:9-13 '59.
(MIRL 32-6)
1. Glavnvy vrach Stepanavanskogo protivotuberkulaznogo dispansera.
(TUBIMOULOSIS, statiet.
in Russia, in child. & adolescents (Rua))

AKOFW?v I*Xot kand*med.nauk
Duties of medical personnel of Stepanavan District, in con-
neation with control of tuberculosis. Probl.tub. 37 no-5:
3-6 '59- (MIR& 12:10)
1. Glavnyy vrach Stepanavanskogo protivotiiberkuleznogo dispanaera.
(TUMCULOSIS - prevention & control)

AK "I
comparative e~~aqdn ot rdAbpds for detecting allergy fol-
lowin* tbe vaqo~naticn of sohoolchildren with BOG vacoins,
Zhur.,'~ksp. i klin. med.13 no,449-56 163 (MIRA 16tlZ)
1. Stepariavanskiy protivotuberkulemyy diopanser.