SCIENTIFIC ABSTRACT KNYAGINICHEV, M.I. - KNYAZEV, A.N.

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CIA-RDP86-00513R000723330005-8
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December 31, 1967
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SCIENTIFIC ABSTRACT
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Preparation of a Vroftat having the fUvor of rye salt from boltod ryw floure Patent 77,1630 Dso- 31, 1949- (0A 47 no-19110150 '53) s T --AT, 0 16- WW" 11 f To 1. 11 " go, 4&w A =10 00 IM *0; 14, SOO-WISM i d. 1-4 so *bid vab tha bW bwa 0 loft QWW"It m#, gems. MAO*, Iwo go ONAVA vamh* lud bad so NO WAkMW WAS fAAW 44 ~o* bpm dwa. lu *&Us, ed 1"I* wbr" pw" 4". fe- Its 0 0 1 c..4. m. smq. new Amb P-*-* -trod 79.4% so J JAN+ by 11W mh anyum odbm. On- "Otawd so sbAk. ohKa dwV diawAl 10 N1& so- 4~~ ~fr. .4urtwo u4m. 14ow cq*q w" at"." *fib L Roe- 464 -00 Mp At fa a a A j i4i" 1; & 0 4 a I &Is o 0 0 014 0 000 0000 il i 0 @1#* **of 0 0 4 0 0 0 9 '.0 gi 0 0 Is 9.0 __Oo_oO_#9* -0 0-0012 r4daktorl VC I IIUUO Llso mm"o-telthnichaskly rodaktor (sloobealstry of whasto - quality of wheat in relation -to variety and :wthod of oultivatioal Mokbialis paboultsyl kmabastva sorm pabsuitay v saylalwatVot sorU t usloyll voMelywantla .0oss lvd-ve solMmd lit-ry. 1"1s 415 9s KM 101 Meet) WIM :LU it of 4 16 u sup ft bMd WWAL b bww age Gi so-W, IL iY jr~, I'M -T-rl i- -,- -7 biwi'14'y. 20; im-n Ind. W6 slarh 44 "W 01 va;rv bo 0 --twtW the ilty sluds la IN)% w i0ovi it -ot~ tly: I KU StAllph 1wiln. Im thq OU ftA" - rmrmkq:4jtA4-4c pm'mr' at- ti u~ in aw c~aftt criotm of Ilm d **d U' It Iff itaff"W bi $r, smmim 0 Ftw%'h .4 voo Stan (mo W'40CS.U00 filyttem, IX4%4"11 itto %J:~' f.s 4~7 f4'r 4 a4*01*" Of k 11W m ja not th. UM/Chemical Technology - Chadeal2roduct md Their 1-13 ApplIcationo VVYA Industry. Abe Jbw Ref 3b 1, 1!Ws 2937 10'.S1 iwter MA is then Uvnsfarredl, i4th ""U+1196 waaftul" tl W fl"k (10-0 Z116 Aup iwim Ilia from amsbtep Is fau- OVOPP, 3.15, al -at, 1-ilt solution (60 g cdwk In I liter of; vita ,rY W:A' of 'k-ad solutim (12.5 -8 X*M - in, I 111t4ir of- vater)s is poar". into lbe U"W=4" mixture U stir fl"k a ttai*Ug~,* red., di- lutod, VUAr'VOtAW.~ k 4')'AjjrM aplat ~ allowed -,to - ' *"M~t ,, .. -'i~ ~Q'-",L~'~~A*"Uil~+.&4 ` on IAbrOUW'0tWm-,.jM4 ',20- *46 M': Ld tv Ith"t fLoar 10. at-, 4, the faui*' *an is j~-, 50-U* at distilUtion ton 49" iticii d1V4UJA4 -t~ tUU "Oestaining 10 al '4f &:Utmt*d i4u*,tft of X` 'A'wA IJ& daute& J^ Card 2/3 TJRKAXOY. Aet..rod.1 AMIXICIff- OS,# rodol CHMIWA* Z.Ts. tokbooredo [BloobeiistfT of mlttvstod pUntel blokbimils kullturqrkh resUntle t:d: 9:9,pefors 14V. Xottval Goo# Ud-vo sollkhos. lit-rys I I I oor"I and great gratual ghlobiWe i knVts*o kullt%7. 1958. 700 (NuA n ni) (orm in) -dw NmSimicsimoo A~L,-r"lOnlGm, N.I~ Netbod of makiag rye broad by forinstlas the I ""a and doqgk at, all i4cressod somprowNe Isyt wris:vAboue avat Plsbob~ Ukho IW* 2sOA6 .158, 010 i6o) 1e Zonlogredskly-takh4ologlabookly lustitut vishchavor previyablenuostig S&fedft tekhaologil khIsbapkarnogo prols"dat"s (Broad-Iseterialoa) MAGIC Iffect of wisture content uA to"erature -on tbHi formation of ps ud accumUttwof "Id In Uctle aol4 braents witbout roast # Isv, vyi, nobabo sav.1 -ptsbab. tokbo do-303-58 158o 1. LealogradeW tsicbseloglebaskly lustitut piebehavoy pro- mrablennosti, Ufodft tokboologil khlebopskarnago yrolsvodskno (Leatle said bacteria) Nfeat of the us"as in the mdtjr*gjon of 2&0lo mclA baCtortA on theIr f Vulat&flon force in AMS&St Issvs"M. jxv.Vo."h*b*Sx,* plehah.tolh. so.4160-73 '58* (KMA 34; U) temmaugi&oOdy Institut pl"O"7 proursh- teftDO20CU 162*bo- lpek&rnW p"is"detva* (7muent&tlcm) (Lootto sold bactoris) row 777 R.'"t MMOM Note yer"Atatics strenob cc a yeastless lactic-acid IS"*& 60 ever a prolonpd period* (xm nin) IT* Owsiddimssi. kafoareukuor i ! sUpskenogo prolsvodstya. 77 P?1j, "The Pmpertles of Starch In Salt Solutions." report presented at the Section on Colloid Chemistry, VIII Mendeley" Conference or Genemi and Applied Chemistryp MoscDvs 16-23 March 1959- (Koll. Zhur. v. 21p No. 4j Pp. ~09-511) m 17(3) AUTRORSt Lt bolkhavitinao Tu. A. TITM Hydrogen Bonds and the Properties of the Starch (TodorodWo ovyasll ovoystyx krakhaala) P&RIODICAM Doklady Akademil nauk SSS1j 19591-Tol 126t Ir 5, Vp 1129-11,31 ADSTRACTr Theproperties mentioned In the title cannot always be explained from the standpoint of the-famillar opinions of the nature of this polyasoobarldo* In the last years -the Ideas being combined with the torn of hydrogen bonds have become important I those of the bonds the physical properties (hydroUticcovIscosity ;to solutions and the state of starch as a aolld are tried to be oz- plainod (Refs lft'3).-But,tho interrelation between the said propoirties and the sontioned bonds Is determined nors,or less speculatively, Un** no papers combining those signs together experimentally could be-found, tests with natural and-modi- fied starch preparations were carried out* The flus4u-out of Ike- starch of ordinary and waxy *am, potatoes and barlet,was, airi-iod'out according to reference S. The modified prop~&+'Idjks Card 1/3 were produood by treatment with2 a 1280 4 at room tompsratiri~ Eydrogen Bonds and the Properties of -the March SOT/20-126-5-61/69 during, .4-7 days until the starah gnins war* soluble in a YJ% sodius salyoylato (lot 9). For the spectroscopic investigation a sathod of starch filas was elaborated* The toot results are given in figure 1. The absorption turve shows that the natural and modified starch preparations of the sentioned plants possess an equally strongly expressed broad bond In the zone 2.0-3.14U being charaoUristio of hydrogen boats. The viscosity of the siodified-sts.rohi,however, differs strongly fro& this of the natural starobt as could be proved, 'This oust be explained by the decrease in the soloculom weight (Table 1). It shall'be mentioned that at,the glucose beside 3 also one atoorption band isvisiblo being characteristic of hydrogen bonds (lot 11)., Consequently -the viscosity of the starch solutions depends on the molecular -weight &Ad, not, o4, the hydrogen -boads, ~:Obviously It Is not possilble,twexplaim-by,tho properties of the-hydrogon bonds the physical propertios-of the,starch as hao'boon-vory often tried up till now. There are I figurej i tablop and ii references, 3 of which are Soviet. ASSOCIATIONt Leningradskly takhnologiobookly institut pishobevoy Card 2/3 prosyshlonnosti (Leningrad Technological institute of Food specific rotation of starch to diffor*41 solvents. lsv.v".Oolwb. plshobAskh# no#ls3742 160# (KM 1316) I* Uf odra orpulchoskey Wall lealspadskop tokhaologlohoskoge IVAtltUt& plahchavoy prowshlenuostle (Starch) (Sol"Uts) I YU-R4 Priuimtai ucbastiY*l XUSO=WA# T.V.; PAW 1610: Specific rotation of starob sad the products of its dsooWceition during 4*01pis Uith dOlUtiom of bydroebaoric acid sW alumim chloride. ftokb4%lj& 27 n0.219-34 Ja-l? 162. (MBA IP5) 1. ToohmlogoillutitutS of Abe Refrigeration Industry, 4--A (STAWH) (MMWWRIC ACID) (ALUKOW *.! - 0. ".12 1. NNW ;iw,~Am ROMMUMME - I.I.-ON m . I -T, Imms -M-MMISMORM, , T:~ i.-' - :c ~ !"~! , , , I- I XNYAGINICHIV,,-,~4-1 XOYAROVo V.1. Effoot of concentration and of the saids jS on the irwelllng of flours with strong and, weak gluten. Blokhim. *or. i khlebopeah, no.MSO-194 164. WRA 1719) is Laningradskly tokbuologlobookiy Institut kholodilinoy prou7shlonnosti i VoesoyusW institut ranteniyevodstva, TMAG; NICHEV H. 1, Datersiting norw for us artnual runoff on Oia IASLA Of Its maxicum rate; as otexplifiel tr/ the southern part of Owk Provimtes !ova Oksk# o'Wo G6oga ob-va ro#6t27-)2 164a tepular lmwls4ge of Um constru-zt~an %ktbtut using &tons am gravel. '&MdesI27-128 The Third Amadewic ani Production Conforms on the Problem of Hydrault-, Lnginsering Construction in Siberia* W4.3135 (KIRA 2839) :7,77T WIN VIM I "Aw ftW.4rTr.!f",6Jl tCkU ;7.7.* i'.~' Pit m",m IT h ls~ At 19 It V1494 lyfia 80140ting the w8t *&U*f&*tWy siss and sbape of riser dependIM on Va solidification tim length of the castings Lit, proisve noa 5132,-!36 my 161* (Pounding) 4 DLINOVp V.A.; MWAI L,V,; AUMCOZO YeA; mlftnffu~ I.P.2 RMCE&KMAp LP,; PMHMnAIM, Soil ion mthod of dysiva vool; rayon and synthetio fibers# Tekm~oprcww 22 ua~1007-0 0 162. (MMA 151U) 1. Nauebap4salsdavatelleldy iminme organicbsoMb ti Pal polwahad4v i krasitA !!Y (!!0, (Icr Uingo'Basclat Anisho p &%"Wm"W-Wvm 0 2. Pac lzdk kh' ad Wwakoy, 2,sbomtoril Xaqdeksnogo nsuahno-inslodoystel skogo instituta, lus nnostl (MILP) Wviyskoy SSR gkq promysUs (for Podshi byakinil 6s and dysiag-Textile fibers) XNAGININAs V6G,-I FJIMWA* 000. CoWounds of low solubility formed between ursalu" and lower phovVhorps &aids* WtOWN11A I 00.6t665-W 159. (mm (Pbosphorus ulds) mmm~a-tv- It cob ru favorite mim Vaskyap Ugletskidodato 1"1. 50 p. (ftb6Uot**Mca st0hanwtoa-wvatora ugollml pvq blonw~U) (55-306U) TNAOS-MN56 z WINE XOV$igk rudmis pnevoticheakals shllfml Insim nothins ShR-06, (Teea, Mmsh-v 1951# no. 39 p, 75) Refers to *Prsevmtikas plant in Imingrads The now hood-opersted rn tio polishing machine SM6a, DICs TN4.V4 SOs Hmnufacturing and Mechanical Aq0earIng in the Soviet Union, Ilbrary ct Congresso 1953* V"i f!j Noysis mcdoll Pnevutlabaskoisverlillnoi washiny tipe RS-8. (%*U. Hashe's 1931, no& 7P p. 66) Rofers to shwYmatikso plant in Lmingrw. Now &-Aol of a pneumatic drinibg machine of the FIS-8 type, DICi T94.V4 90s Manufacturing and Wohanical D%glasering in the Soviet Wonj Libra'7 Of Congress# 1953. AUTHORS: S W011 1;4108-/63/018/001/00 IP307 Yakhinson, Bel. and W"VAM' iA.L., Members o9 the Society (see Associl~ili~n) TITLE: Order of linear electrical network PERIODICAL: W iotekhnika, v. 18, no. 1, 1963# 12-18 1"-, TEXT: The authors consider the possibility of-dote the order of a linear electrical network from its configuration the properties of :its elements. Since the highest order of every mesh is 2v the network order camot be greater than twice the ms6bev~; of its degrees of freedom. Ths suggested method of deterviaL the network is therefore as follows: if the network has a nodes -(with no two branches with arbitrary combinations of RLG elements like elements present in my of the branches) then the operator Kirchhoff equations of the network in matrix form will ham m-a*1 equations from the 2nd Kirchhoff's law and a-1 from the first. Sit" the order of the system matrix cannot exceed the mu of the highew orders of every column# the maxim= order of the matrix is shown to 4L SAW 63/018/001/00~~011 of linear electrical netvork D201%307 be equal to the total number of the reactive elements in the network The method is used for determining the order of two simple filter ne orka tw and of a more complex one. There are 411gures, ASSOCIATIM Nauchno-tekhnicheiskoye obahchostvo rsdictekht&ki -i- elektroavyasi im. A.8. Popov& (Scientific &W Tecft-: 'I nical Society of Radio Enginseri and El ictrical Abstracter's Communications imeni A.S. P Qv) notet Nam of Association t=n ffom fire page, t of journail September dg 1961 (initially) SUBMITT p December 30 1961.(after revision) lz1i LC ard--,2/2. NOVAIMOO D.G., profel INIAZXrBX=p Tool. v ksn4. mW,, nauk Palmonary complications following thoracic wwgery In spinal tubermdosise ftoble tubo 41 no*9$M-25 263 IMIRA 27W 10 12 TAmingradskop Institute, khlrurgiaboskop tutsrWoft (dlr. prof; D.Utbokhlorr) nauchayy rukoyoditsl* - de"Witell- nyy chlen AM SWR* Me Kornev)* -Wil" I F --A Irv XNTAZITs A*. brigimUr plotulkow, Sullders mrftUllt ttair =rm, ftrottell =,12M D (Nlu 1112) 1. ?not 16,19 GlarUtdocrMstro7s, 7777 MEE-" XMIAMI Ao A- Kny"eTj A. A. Vulture of the -Iip&OUS b"my in the conditlou Of lantWadpl *ullsten' OlaTe, botan. #ads# I low* li, but P. 73-75 801 U-2888,0 Lst4ls Zhurnalltqkh ftatqp Vo. 1, 1949 MAW, A. A. 37424o Peon Dmvovidv~7 i Ev Naiturt V US10VIYakh IAWAgrMa, V Sbi ZolouM Stroit-4o. L.,, 19490 a. 79411.. Bibi4opl u masy, 50, lAtOPis' Zhurn&llrTM Statsts Tot- 7, 1949 XAMWOP V.0 XAL4s"'O O.jj KRUM, A.* Diesel Motor Standardized fuel P=p for traotor dissel eattaos. wsp n. no. 12j, 1951. q.. Mont List of Russian Accession Library of Con1press, 1951, Wet. . . . . . .------- fil ~iu (also) 06-macn4mle KNYAZEVt A. A.t 0 rol#oh Sol the or Mw oye.retlonrorf ouItivoto r- vlowW Sarstov# 2957# 18-pp with graphs. (Min Agr USSR, Saratow Aer Inst), 150 copies. M, 9-58v 117) 71 rKTAZZV A-AAkm IMUTS rollstswo of loarifyi" (Plon) A&_kmndotskbn*wm*j MMUW, Ivan Ukolsysilobt kondsteldmonsukg -AMM, P.g red.; cue 1o 9 tekhn."d, a-bay. tvarvestinc groin in severste staps] Rosdelluals ubarks khlobovo Gorstave lbratovskoe knishnos lad-vaq 1960. (KIRA 1492) 2) IaSEIZVj CionWly T9111yovichl OSTAPENXO.t Vol#, kando b1olo mukp redpi IWAZSV, As op red.; VCROBITEV, D.H.j, red.; IMMVIGH9 G#W*j jim-, arkmt, nauk, rod&l SAVZDARO, V.I., red.1 TAINVA,, VA.0, red. [Floriculturs]'Motoyodstros lsd*3*, ispr. -i dop. No- skyap lad-vo "Kolosj" 1964# 983 ps (KIM 170) 1. Starshiy sadovod Botmdoboskogo made, Botanlabskogo In- stituta im, VA.Iowova (for Krqasn), 2, Storably s*Ao- fod Treat& ob"yedinmago sadovodstva (for Vorob yowfAlp). 3*,Direktor tokbaikuma "Isnogo stroit*21stva, XharIkov ( 'or Loontovioh). xmmp AIA. tlll&P- ZftladelJe 2i no,9W.40 3 It4. 1. KuYbyahavok-ty seltzkokhosyeysuennyy Institut. (MIRA 171.11) TC871"Tc.112 1, so k'AM. ~1111'1011.j "'.7.1, t;'A AIVA67Al Woo k-and, zekhn. roact MAZry, Studrir4 tho pffwst of surnment -,relr.-Mfj (,.o 41P Obeffisjont cr Lgaft-tg formtImA 1.u ker-ters -"r 16 Kip. =)Nm LJNMLNM xf 13 ka"O", MA. food. ow *400me -no ow tw:!Vpw dtWW4~ 44nV 4d Awt 4 W ad 1,140 sed aw no As G.O., &46e~ LOW. t.. h" too 44 Nonthly List of Russian Accessionap.Library of Congress$ June 1953, Uncle 0 Row th* IN rootiv*r works. 16ato no.807-60 Ag 15). (MM 6s8) (bAlo frequeav softlation) IT MUM As Now the 7M receiver vorks. 16dto no.9s57-61 5 153. (NLRA 6S8) (Radio frequency -modulation) &-iij ril ~V#IW HIMME lnffA=Y. Alaimav'[ 4trjuTjohj,.ZM'o A,Pev Inshomer-wort rodaktort ..Rurommaxamasag- wax irg .--;miohoskiy rodaktor CZw a vaotio-tolophoas funations] tak mbet"t radlostantelias Noskral Toonnoo tvtorv~ Mtn* obomV Soluss, Me IT.;4o 224 0 (Tolophass. Wireless) (am 803 usm/ Miscellaneous - Book rovimm !bard 1/1 Pub* 89 - 40/40 Authors I Kny#kssXq Ae Title I Book rsviews &M bibliography Feriodleal s Radio 10# pago 63# Oct 1954 Abstract A Soviet book# ft"Ul Viads.,j &M ModesO, by L U, PUqWj pubw lished by GosenergoIxd*t (State Publishing House for Power Engineering) in 1953# is reviewed, A nwnbor of *rrors are listed and the poor style used throughout the book is criticized. Institution: ... Submitted- USSV alncLnniaa 4m.Uo at.Aions Card 3,/1 1 Rib, 189 - U/26 Authors I KM"'-O~.j A*, and Porudoviinakyp Ve Title I Tool-mic.12 romdroylats for radio stations u3od for dis,.atcher commini- et.tions in al)riculture Periodical i Mruiio 12, Z3-24$ Deo 1954 Abstraot In view of a number of defects foiuA In the tyTdcal "agricultural" radio sti,tion 'Vrozay"p its mirrot band-pass residting in Interferenoeop and long-wave ranVa requiring Uic in3tallation of a cor4ilox antanna# the design of rn approvod type of radio-station for oerving the needs of aeAculture is discussed. An USW radio ralV stationp operating on about one Mindred. vzwious mm-lcnGths# and asnociated -with a network of over 50 radio-recolvInG 1,'~-6)lne-Tractor stations and other instalLi- tionns is 1-wopcmed aa tho rrat suitableo DetaUod design data relative to improving t1w oporation of tha station are suUasted, Liatitution SULVlitt,Dd % ii~. n R M1 A Mectronics Germanim diodes Cam 1A Pub. 89 - 2312S Authom I Knyasovo A. Title input resistanct or getimnium diode detectors Radio 4, 50-51,p APr 1955 *""'taot I The basia principles, and opecial characteristics of Semnium diode detectors aro discusood, And graphic tomulas ars given for cwdatOAt1ft9 the input resustance of detectors used on the tn* DO-Ts 2j W-To 3b M-TO 4, W-Ts 30 DG-To 6j and DO-To 7 diodes. Tablel grophaj disgram. Institution i **too - Ole, EffAZW A&D,g 1whourl PIZU!, Z.Ae, Inshamer l9w a radio station for Istridistriat oommmunication shoulA be orpnized.0 Response to V*K# Ilosev's artiols paUlshed In no. I of the jou"d for 19550 Test. vvlasi 15 aoo7t23-13 A 055. Omu ate) tallskogo instituts arpsl (for Ushnir)* (RAUG IIAMINS11, Short W&VG) MrrAZW,A*Do, Inshner Radio broadoastiag an ultra-short waves, Sankt I ohin' 22 zoAs 17-20 Ag'55. (XIU a 110) (Radio, Short, wave) AID P 5018 Subject USSR/Blectronice Card 1/1 Pub. 89 3/14 Author i Knyazev,, A. Title t Prequency modulator with diode transistors of the DO-Ts type. Periodical : Radiop #9p 22-23, S 1956 Abstract : The author presents a connection diagram of a frequency modulatorp the operation of -which Is based on the effect of changes in capacity within the diode point-contact transistor. The author explains In detail the operation of the modulator. One diagrams Institutiont None Submitted t No date !ZLQThAl age nitr!=ah; MDZMV, L.-T., red.; KRZIMMUTA, Xp.,, ERW ndto station works) YAk rabotmet radiestantstia, IM. 2-os I spr s I :dop a Kooky* Voon, Isd-vo X-n obor. $80 19SS, g4l (Radio stations) AUTHOR: AM TITIB: Interaction of a Signal and Interference in an Nxponential Detector tVzaimodeystvi.7e signala i pozekhi v eksponentsiall- non datektore) PERIODICAL Blektroavyat', 1958, mr 30 pp 11 - 20 (USSR) APSTRACT.- 14INegative suppression", i.e. inereane of the ratio of a weaker signal to a stronger signal, in the presence of the stronger nignal, hao been abserved in certain detectors (Refs. 2 anA 4). The author determines the conditions under which such negative suppression occurs. The effect of the shape of the dotector characteristic is first investigated, assuming that the two modulateA signals U. and U. at the inputhave carrier frequencies, we (signal) and on (interference), which are nearly equal to each other and that: U The modulation frequencies P. and 0. are not equal. It in Card:L/4 106-58-3-2/19 Interaction of a SiStal and Interference In an Uponential Detector considered that the effect of the load (anode detector) can be disregarded. Assuming that the anode current is a contin- uous fuz%ction of the combined input voltagel the anode current can be expreased by.Maclaurin's serios: .[fp" (0) . 3f(IV)(0) )+ P a Oclan .41 2 a I5f (vi)(0) P n + - + 3.U4 2 3U2- + ~Cos a t + 4.6! 2 n c 2 %11 n F9*(O) 3f (17)-co). U2 I + U2 c n + (v 21( 41 2 i3f% M ~c4 +.. -4 a tj2 coo g U + 37--V2- + t n .1*11 c C C C carA2/4 2 106-58-3-2/19 Interaction of a Signal and Interforence in an Exponential Detector Vie volt-amp. charazteristle of the detector is considered an a soriao of terms of aw,,ending powers of the input voltage *a BX 'BX 10 Unu +--',a Cosont) Con wnt + Uc(1 + m.cosot)cosw,t (1) 2 ft *Oo + 'DIuBm + '~-2"Bx+ + bj~jx + oo. + b n1lix (4) and the ratiov of the modulating frequency voltages at the detoctor output: UDC axe found for different volt-amp. characteristics 'by taking differwit numbers of termt. From this, the suppression coafficionto : V U 0 and X. no Card3/4 ('_)U .0 an 106-"E-3-2/19 Interact.ion of a Signal and Interference in an Bx;onentiaf Detector can be calculated. It is Shown tLat if tho detector characteristic increases more rapidly than a square law, the weaker signal increases relatively =ore than the stronk;er. An exponential detector is analysed as a practical example. It is concluded: 1) If the weak signal is separated o,7 a narrow band filter, the relative increaze of the weak signal in the exponential detector compared with linear and square law dotectors can be more than 10 db; 2) The nu:e.-er of components (harmonic and ct=bination frequencies), which exceed the level of the fundshent-al sienal at tho output of an exponential detector is greater than for linear and square law dotectorgi 3) The experimental values for the In-irease of the weak s gnal using existing valves (GAZW, GK4P-V 6BB, sta.) roach 15 - 20 db, The relative increase of the weak signal reaches 6 - 7 db. Corresponding Member of -the Ac.Sc. USSR V.I. Siforov advised in this work. There are 8 figures and 8 references, of which are Soviet and 1 Inglish. SUBMITTBD: lobruary 2, 1957 AVAILABIR: Library of Congress Gard4/4 1, Frequency nodulatics detectors-Characteristics 29 Xathawtics- AUTHORt XnyAzar,- D, SOV/106-59-1-2/12 TITLE: *"FT-he Interaction of Two Signals in an Exponential AM lifier Usainadaystviye dvukh signalov v eksponent3- I&I'nom usilitele) PBRIODICALs Zlektro9vyaz'q 1959tOr 1, pp 12-20 (USSR) ABSTRAM When two signals pass through a non-linear amplifierp not only do their rospealtive spectra change but the ratio of the amplitudes of the signals is also modified, It is well known that the cross-talk in an amplifier may be reduced by choosing an amplifying valve In which the ratio of.the second derivative of 'the mutual conductance characteristic Is sm&ll compared with the mutaal conductance itself. The present paper is devoted to determining conditions under which the ratio of a weak signal to Interference may be increased at the output of .& non-linear amplifier compared with the value of the ,',,ratio at its input, In the -case of an unmodulated signal,the sun of oarrier and interferenae at the input to the circuit is given by (1)t while the anode current in the valve is given as a function of the appliad Card 1/6 vOltAgOt its in (2)9 where f is supposed continuous and with continuous derivs,Oes. The expansion in SOV/106-59-1-2/12 The Interaction of Two-Signals inan Exponential Amplifier Maclaurin series may be further simplified for a particular valve by (4):&s a simple power series. In vhat-fo3.lowsg the fo loving definitions applys hl a $19=1 I ][a = signal in the presence of Doise) TFOISG (signal in -the absence of noise) Xv = (noise In the presence of signal) / (noise in the absence of signal). ~The latter two ratios are called 'the coefficients of thange of level of . signal .and noise respeatively.. The load impadance is supposed equal for the two:output,oomponents and the degree-of the jolynomial used in (4) will be successively raised* asults for square'lAw characteristic are given in with N a h t~ 1 aD1 for oubia characteris ties in M V) and (8). The general conclusions for characteris-' t as which increase with the steepness faster than square law are given in (9) and (10) for the conditions V -3 0, 0 respectively, The following b .1 0 9 b diductions aro nades (1) Only the tdd terms of polynomials are significant for the coefficients of Card 2/6 change of signal and interference* (2) If the odd terms are positive than at the output a weak signal increases SOV/106-59-1-2/12 The Interaction of Two Signals in an Exponential Amplifier more stro ly in the presence of a strong one than a strong. one does % the presence of a weak one, If the coefficients are negative then the reverse is observed. (3) Tho enhancement of a weak signal In the presence of a strong one will be the greater the more steeply the valve characteristic rises. The voltage/carrent'charaoteristic of anvxpons ial an lifier is that of (11). At Substituting 1) in.r1l) we obtain on the right hand side an exponent multiplier which can be resolved into a thi series of Besiol functions of -imaginary arguments Also introduced are two quantities Q =,.I/hi and q) -equal to the noiss/sIgnal ratio at the input. Fig 1 shows the variation of q with q for various values of auct whore a Is the coefficient of steepness of the exponential characteristic and U is 4,-,he signal voltage. Kv and 4 are given In (14) X Kai as a function is given in Pit 2. It follows from (14) that 11o is ter than KIS 9 that is to say, a weak signal grows in Irle9apresonoe of a strong interference more than the Card 3/6 interference grows in the presence of a weak signal. The behaviour of an wcponential amplifier may be compared sov/lo6-59-i-2/12 The Interaction of Two Signals In an ibcponential Amplifier with thattf a limiting amplifier by using curve I in Fig 1 and curve 4 in Fig 2. The author analysed earlier (Hof 2) Uo behaviour of an exponential detector and found thatq although the a'bsoluto level of a weak signal grows more quicUy in the presence of strong interference with an exponential detector the enhance- ment of signal-to-noise ratio is greater In -the case of the amplifier, Fig 3 shows how the gain of an exponential amplifier-varies with -the driving voltage. Zq (18) is the exprission for the non-linear distortion ,of the signal and (19) is an approximate form valid for the condition written below it* When the signal is modulated the depth of modulation is enhanced by the amplifying process in the r sence of interference VA expressions for Ic and ENO are (21). gqs(22&) -to (22a) give Various'produots found in the output spectrum of signal and interference. Fig 4 shows how they are changed in passage through the amplifier; solid lines refer to a push-pull connection and the dotted lines to Card 4/6 a 91nale-ended circuit. Comparison of behaviour of an amplitude limiter is given in Fig 5 from a calculation by SOY/106-59-1-2/12 The Interaction of -Two Signals In an Exponential Amplifier V.A. Kraus. The experimental work was carried out on a triode-connected 6A2 valve for which a varies between 1,5 and 4.with a weak-signal frequency of 34 c/a And a strong interference of 110 als, The anode load was-s. narrow-band R.C, filter tuned to 34 0/5. signal level and the input were kept constant and measured values of X6 and Q wore shown as a function of q in Figs 6 and 7 (curve 1). They agree rather well with calculation for the case allc a 0.95. The a rooment between experiment and theory deteriorates with farge and small q and this is explained by the departure of the characteristic from the exponential form, With q -= 12 dB and more the Useful dynamic range of the characteristic 1.9 exceeded* Curve 3 of Fig 6 also shows the comparative performance of a grid-ourrent limiting circuit using a 6Zh2P valve. The agreement with theory here is very good. The effect of increasing the mutual conductance characteristic was demonstrated by connecting faur 6A2P valves In parallel giving effective value of a = 4.4. The corresponding Card 5/6 results are shown In curve 2 of r1gs 6 and 7, A qualitative check was also made of the behAviour of an BOV/106-59-1-2/12 The Interaction of Tim Oignals in an Exponential Amplifier OX onential amplifier at carrier frequencies using a sIP9nal of 20 Ws and Interference spaced 1 kc/9 from It, Gratitude is expressed to Corresponding Member of .Ao.Sc. USSR, V.1, Siforov. 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YOUICUS vith Colloid appwxed In such islarA cuA Card 1/9 ad" a lAbomtwr laboUcult ma vith tbo viru of tiek-bwo *u"VbidlUm*' %Iwo, -mwo I PLAO 62 no-31 33)-338 #(A# 1513) 10 uream bou mmwcwmwA" am (say, - Prof. I.M. vis") I prawk (swe'- datasat A.1, Norsimv) Ponokoy (MM AS CAR&= CW DI") - - - - - - - - - - MLU:RW# UjUt kRM. biol4g, nank, malstent; LIMMY-0, L.A., aspirantl A*X* sta"at I%Um&UUng tmate grovtb with repsated &"Ion of subletbal Uspratwes an the roots, Isys TSINA no,108-0 163, (Mates Moot of soU taxperatwe on) (XMA 16s7)