SCIENTIFIC ABSTRACT YAVICH, L. R. - YAVLENSKIY, S. D.

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R001962310015-3
Release Decision: 
RIF
Original Classification: 
S
Document Page Count: 
100
Document Creation Date: 
November 2, 2016
Document Release Date: 
September 19, 2001
Sequence Number: 
15
Case Number: 
Publication Date: 
December 31, 1967
Content Type: 
SCIENTIFIC ABSTRACT
File: 
AttachmentSize
PDF icon CIA-RDP86-00513R001962310015-3.pdf4.84 MB
Body: 
109-7-6/17 Image Matrices of a. Quadripole. reactive quadripoles the scattering matrix can be expressed as shown in Eq.(27) so.that its elements fulfil the relation- ship given by Eqs.~28). The so-called transfer matrix of a'- system is defined see EQ-130) ) and the-relationship be- tween its coefficients and those of the scattering, imyed- ancet admittance and the mixed matrices is considered see Tables 3 and 4, P'.876). A practical application of the matrices is explained by means of an example (see Fig~.6) which considers a waveguide filter consisting of two identi- cal discontinuities separated by mean of a waveguide section operati.qg with an H -type wave. The transmission matrix of the filtbr is give~12Y,Eq~(36) and the modulus of its reflec- tion coefficient by lq.(37)'. Expressions for the scattering and transmission matrices of some simple systems are given in the appendix (pp*.880-881)', There are 8 figures, 8 tables and .13 references, of which 6 are Slavic. SUIRMITTED: December 100 1956's AVAILABLE:, Library of Congress. Card 3/3 /C /Y/ AUTHOR: Yavi ch, L.R. T I T LIE Mae FroW-eii-sin the Desi3n of Wideband Spark Gans (RokotoryW voprosy proyoktirovw-iiya shirolzopolosiily.~~-.','. razryaC,niixv-) PERIODICAL: Radiotcl~hnika i Elektronika, 1958, Vol.IIII Yr 11 94-104 (USSR) ABSTRACT: The paper is concerned with the desiGn of the raceiver prot-ectin- devices for ultrahigh frequencies. It io assumed that for a -iven frequency band the protoctin- device Should enploy the resonant elements chosen in ruch a way as to obtain a minimum reflection coefficient. A 5-stage protecting device (duplexer) is considered. it is assumed that it is situated in a waveguide propar-atin- an H wave (see Fi-.1). It is further assimed that all the 10 0 1 resonant elements have the same resonant wavelenn-th, X01 ca and are situated at equal distances, f:oom each other, such that t = 1/4 the resonant wavelength in the waveoaide. C3 The losses in the resonant elements and in the connectinG limks arc no-loctod, It is shoval that tile duple-X.cr 3,Y"Ston Card 1/5 109-1-11/18 Some Problems in the Design of Wideband Spark Gaps of Fig.1 can be represented by an equivalent filter circuit shown in Fi,-).3, in which the relatiomships between the Q-factors of the resonant elements and those of the elements of the network of FiC~.3 arc e~zpressed by Eqs.(5), while Q,, is civen by Eq.(4); X130 in Eq.(11.) denotes tho rjsonant wavelength in the wavoguide. The normalised conductances C? of the parallel branches Bp factors of the parallei circuits QPH , normalised resistances of the series branches XP_, and the effective Q factors of the series circuits Q,)-l H for the circuit of Fig.3 are expressed by Eqs.(G) and (75 which can appro:cimately be represented by Bqs.(8) and (9), where AP and Af are given by Eqs.(10) and (11). The problem of the synthesis of the ladder net- works of the type shovm in FiS.-9, for a minimum -reflection coefficient over a given frequoncy band, was c3nsidered by Bode (Ref.L~) and Fano (Ref.5). The problera. was also in- vestigated by the author in an earlier pv-per (Raf.G'). In the above worics it was found that the optimum reflection coefficient can be expressed by: Card 2/5 some Problems in -the Design of Wideband Spark Gaps Sll on-r ~- '_ *BIM , (12) where B IM is the maximum normalised conductivity of the first resonant circuit which is Siven by: B lm (13) Eq.(12) is true for a network(Dnsisting of an infinite number of stages. For the nehvorks with a limited number of stages, Fano (Ref.5) based the solution on the Chebyshev approximation and derived a number of formulae which deter- mine the relationship between the effective Q, factors and other parameters of the first 4 elements of the cir- cuits in Fig.3. The formulae are expressed by Eq.;.(14) to (21), in which n is the nLLmber of resonant circuits in the network, a, b, a 31 a51 a? are auxiliary coc-f.Zicients; 11V 00 00 00 Al A3 1 A 5and A 7 are the Taylor series coefficients. Card 3/5 19- -97". gg~z-!i 4" "T5 109-1-11/18 Some Problems in the Design of Wideband 3park Ga-ps In order to obtain a minimum reflection coefficient -the network should also fulfil the condition representod by From the solution of Eqs.(14) 11 Eq.(27). 4nd (2?) it is possible -to obtain optimum values of the coefficient-s a and b as a function of B for n ranging frDm 2 to 5. The values of the reflection 11 coefficient S LD a2 a fuzet- ion of for n is shown in Fig.5. Thilcoefficients al I a2 03 and a,, as a function of BlM for various n are evaluated on the basis of Eqs.(14) to (21) for the optimum a and b and are plotted in Figs.6, 7 and 8. On the basis of the above it is possible to design practical duplexer networks. Two practical networks are designed. One of thera has a relative bandwidth of 1056 and o-Darates at a wavelength of 10 cm; the other one has the bandwidth of 2001o; in both cases the effective Q-factor of the first element is 4.25, n = 5 and the waveguide cross-section is a 72 x 34 mm. The reflection coefficient Sli aCainstj X is plotted for both cases in Fig.10. The desi,-n aas also Q checked experimentally and the calculated results for n = 3 Q1 X = 12 cm 5.43 and waveguicle 1H 0 0 ross-section 72 x 34 mm are shown in Fi-.11; curve 2 iznim ma Some Proble-ms in -the Desi,-,u oll' Wideb -and S'park, Gaos 109-1-11/18 represenlu-s the calculated and curve-3 the e::peri-uienLa1 results. The paper contains 11 'LiGures and 8 references, 4 o f vil arc En--lioh and 4 Ruosian, --id an appendi,,:, Ach - ZZI SUBIMITTED: February 7, 1957 AVAILABLE: Library of Congress Card 5/5 lrl v 4 1 JL S. Ad- A. JL K- IL r & L rp~pw. A. r. K-~.fi A. A. 2-W P~ -.d. P. r. *W- (c Is A* 22 A. Q.- (c 10 A. III A T. K- t IL A"- C- IL JL Imm" P-P. Os?. K sat. ftedrt" j'& lisewiftl C.Wlswti~ ft. A. a. 114A zow. W"MR- ;.f tQ N-4 !L. KIN If? iil AUTHOR: YaAch 1 L - R. SOV/109-59-4-2-25/2-7 ITITLE: Application of the Wave Matrices for the Oalculation of Transverse-Symmetrical quadripoles, (Primeneniye volno7ykh matrits dlya rascheta chetyrekhpolyusnikov s poperechnoy slmmetriyey) PERIODICAL:Radiotekhnika i Elektronika, 1959, Vol 4, Nr 20 1 pp 341-344 (USSR) ABSTRA,CT-.. It is pointed out that the calculation methods described by the author in an earlier paper (Ref 1) can be considerably simplified if the quadripole possesses a vertical symmet--y. The simplified analysis can be done if the quadripole (see Fig 1) can be split into two image-reflected quadripoles I and II. The resulting quadripole can then be considered as a cascaded system of two identical quadripoles; it should be remembered, however, that the transmission of energy in the quadripole II takes place in the opposite direction to that in the quadripole I. The transfer matrix of the resulting quadripole can be expressed as Card 1/3 SOV/109-59-4-2-25/27 Application of the Wave Watrices for the Calculation of Transverse- Symmetrical Quadripoles Til T12 Til -T21- T 2 -ill 2 -T T +T 11 12 11 21 12T22 [T3] T T -T T T 12 +T2 21 22 12 22 llT21--T22Tl2 -T21 22 (2) where Tll, T129 T21 and T22 are the elements of the transfer matrix when the energy is transmitted along the quadx-ipole from the left to the right (see Fig 2). From Eci (2) it is found that the reflection coefficient in the syetem is given by Eq (3) and its -Lnsertion loss is expressed by Eq (4). The above formulae are used to determine the insertion loss and the modulus of the reflection coefficient for a filter consisting of the segments of coaxial lines having lengths 11 and 21 and characteristic impedances PI and Pp (see Fig 3). &e insertion loss is expressed by Eq Z8). The value of the reflection coefficient is also determined for a Card 2/3 quadripole which consists of two equal segments of 5 SOV/109-59-4-2-2,5/27 Application of the Wave Matrices for the Calculation of Transvierse- Symmetrical Quadripoles a line and three admittances (see Pig 4). The reflection coefficient is expressed by Eq (14) in -which c< and 0 are defined by Eq ~(15). The author malwas aelmowledgment to R.Sh.Shakirova for her help. There are 4 figures and 6 references of which 4 are Soviet and 2 English. SUBMITTED: 16th April 1958 SOV/109- - -4-3-25/38 AUTHORS; Felldshteynj A.L.9 Yavich, L.R. TITLE: A Comparison of Step-like aii~dontinuous Line Sections (K sravneniyu stupenchatykh i plavnykh perekhodov) PERIODICAL: Radiotekhnika i Elektronika, Vol 4, Nr 3. 19592 pp 527-529 (USSR) ABSTRACT: First, a Chebyshev-type step-like section (see Fig 1) is considered. This device was investigated by a number of authors (Refs 2,5,6 and 8). It is assumed that the length of this type of line section, which consists of n small steps is given by$ 40 = -I- A2 n arc cosi 1 27( Cos n where Ap is the wavelength in the tran:lission line corresponding to the "long-wave" boundary of the trans- mission range; K is expressed by Eq (2), where R is the ratio between the characteristic impedances of the matched lines; h is the maximum deviation of the Chebyshev polynomial from its zero value. When' n- in Card 1/2 Eq (1) tends to infinity, the line section represents a continuous transitiong and Eq (1) is in the form of SOV/109- - -4-3-25/38 A Comparison of Step-iike and Continuous Line Sections Eq (3). The problem consists of comparing values of 1 0, as given by Eqs (1) and (3)1 for the same value of R and the same value of the reflection coefficient. The results are shown in Fig 1+ for various values of n and t; the limiting case of a continuous transition is represented by the dashed curves. There are 5 figures and 8 references, 6 of which are Card 2/2 Soviet and 2 English. One of the Soviet references is translated from English. SUBMITTED: September 18, 1958 E' s/log/60/005/04/012/028 E140/E435 AUTHOR: "Yaulc-h, TITLEa Certain Relationships for the Cascade Connection of n Identical Irreversible Four-Terminal Networks PERIODICALaRadlotekhnika i elektranikau 19609 Vol 59 Nr 4s pp 633-637 (USSR) ABSTRAM This is a continuation of previous work (Ref 6) And is based on application of the"ideal power transformer" introduced by Zelyakh (Ref 2). Using this and some network theorems previously demonstrated (Ref 6), it im shown that the cascade.connection of n identical irreversible four-terminal networks can ba represented by an equivalent circuit of n identical reversible networks and a single ideal power transformer. Thtn Wilson's theorem (Ref 1) may be used for rinding the transmission matrix. There are 5 figures and 6 refersuzes, 5 of which are Soviet and 1 English. SUBMITTEDs February 16, 1959 Card 1/1 69918 q. /'300 s/log/60/005/05/oo6/021 E140/E435 AUTHORS: Felldshteyn, A.L. and Yavich, L.R. TITLE: The Calculation of Stepped Junctions with Maximally- Flat Characteristics PERIODICALi Radiotekhnika i elektronika, 1960, Vol 5, Nr 5, P 762-770 (USSR) ABSTRACT: A method is given for calculating two- and three-step waveguide junctions with maximally-flat characteristics. Tables are given for wav*e-impedance changes between 1.2 and 9.2. Acknowledgements are expressed to R.Sh.Sharikova for her assistance with the calculation work. There are 9 figures, 2 tables and 3 Soviet references. SUBMITTED: April 13, 1959 Card 1/1 V, tr. ~',A; Nl~ T: -SV, RMA10,12m, 0 S/11 211000101010061006 9" 1Z 3 D (A /S_6 /02 /, 1/3,2.) A055/AO33 AUTHOR: Yavich, L. R. TITLE: Application of Chebyshev polynomials for the calculation of a cascade connection of n identical quadripoles. PERIODICAL: Elektroavyazl,no. 10, 19609 70 - 71 TEXT: The problem of determining the matrix [ajA of a cascade con- nection of n identical quadripoles for a given matrix [a] of a single qua- dripole, i *s solved by Doleial in his article published in,the Czechoslovak periodical "Slaboproudy obzor'19 199 G", 4, 1958. Dole~al succeeded to obtain a sufficiently simple solution for reversible quadripolSB (det[a] =Ial= 1), solution based upon bhebyshev polynomials. In the present article, the author shows, by a comprehensive mathematical reasoning, that the method of Doleival can also be applied for the calculation of non-reversible quadri- poles. Like Dolezual, he'examines the general case of a cascade connection of n identical quadripoles, each of the quadripoles being described by a matrix [XI (see Figure 1). By [X] can be understood either of the matrices Card 1/4 21331 s11061601000101010061006 Application of Chebyshev ~polynomials .... A055/AO33 [a] , [A] and ETI [A] being the mormalized matrix, and [T] the wave matrix of transmission. Each of these matrices links the following magnitudest ~j ]_[a] ~2 11 aj 2 2 ra 21 a2 12 2 r orff or A ~Unorllr 2 11 12 2 rInorm norm - 1 = [A] r rA norm 2 21 A2 21 12 orml , or T orm e ln 2n 11 12 n ] ru ijn r21 2 normj M orm orm Un ]m 10 20 12 T 2] Card 2/4 rg, J g -.4 -.i-t IIRMIM Aw But S/1 0616olbooloiO16061006 Application of Chebyahev polynomials A055/AO33 (Abstractor's note: subscript "norm"is tho translation of the original whereUi and I, are the quadripole input voltage and current, U2,and Unorm norm Unorm, jnorm~ are the`quadriple'outpu~ voltage and current 2 1, 2 2 i E are the corresponding magnitudes (according to the normalization rules gl- ven by the author in his article Ref. 4t Wave Matrices of a Quadripole, Radiot6chnika, vol. II, No. 7, 1957), Unorn Unorm, and Unord Unorm 1n ' 10 2n 1 20 iar' normalized incident and reflected waves of voltage at the quadripole;input and output respectively. No Ximitations araimposed upon matrix X t which~ LIX thus.represents any arbitray quadripole. In-the author's calculations$ W ore h Chebyshev polynomials are resorted top the'passage from non-reversible' ones is based upon the use of the ideal power converter described by.E. V. ZelyAkh in his article (Ref.. 3) Ideal Power Converter, Elektrosvyazi, No. I.' 1957. There are 4 figures and 4 referencen: 3 Soviet-bloc and 1 non-Soviet- j -bloc. The English language publication roads as followat Tables of Choby- ahev Polynomials, National Bureau of Standards, Applied Mathematics, Series; Washington, December 1952, SUBMITTED t October 28, 1959 Card 3/4. 3C 9.14oo 77-175 sov/io8-15-1-1/13 AUTHOR: Fp-lldshteyn,,A. L., Yavich, L. R. TITLE: Engineering Computation of Chebyshev's Stepped Transitions PERIODICAL: Radiotekhnika, 1960, Vol 15, Nr 1, PP 3-15 (U3311) ABST-1:?a'XT: The paper is an exposition of the method of engineering computation of stepped transitions between transmission lines. The results of calculation'of 405 typical problems are given in table form. The following two basic definitions are given: (1) A stepped transition is a quadrupole consisting of n sections of the transmission line ('stepB") which have the same length .9- and various wave impedances P. (see Fig. 1). A P Card 1/16 Fig. 1. Engineering Computation of Chebyshev's 77175 Stepped Transitions SOV/108-15-1-1/13 The purpose of a stepped transition Is to match two lines with the wave impedances PO and r, respectively. (2) A stepped transition is called optimal, or Chebyshev, when (a) for a selected wave impedance jump R = r Poj (b) a selected permissible mismatching value Is /['/max' arid (c) fo:,- a selected passband 'X2 - X.1 the transition has a minimum overall length A 0 n-Q. The attenuation of a Chebyshev transition equals 10 loglo of the mag- nitude /Tll /2, which Is: IT1112 = I + hS T42 /COs t I M P, W, where Tll(x) 13 Card 2/6 first type and the Chebyshev polynomial of.the n-th order, n 1i 2, 3... being the P" A, Engineering Computation of Chebyshev's Stepped Transitions Card 3/6 77175 sov/io8-15-1-1/13 number of transition steps; h is a parameter de- fining the permissible mismatch / F/max; P is a parameter defining the width of the passband; 27FQ/A is electrical length of the step -L and A is the wavelength in the transmission line. The stepped transitions are usually characterized by 5 parameters: n, h, p, R and k 0, of which 3 may be selected Independently of each other whereas the two others follow from computation. The re- lationship between these parameters is derived from Eq. (1) by considering cos G)= 1, i.e., for zero length of the steps, and taking values of the argument x = cos (D/p at the boundaries of the passband. The following expressions have been obtained: P= (12) Cos arc Cos C n Engineering Computation of Chebyshev's Stepped Transitions Card 4/6 77175 SOV/108-15-1-1/13 A, 2-.1 (15) it - arc cas p 2n1 arc Cos P where A 1 and A 2 are the wavelengths in the trans- mission line, generally different from X 1 and X 2 in the outside space. Tile length -9-0 = n _Q_ is given as: 3 2r (18) rc.cos [c03 17, 'Irc c' C C in Eq. (18) and (12) is defined as: Engineering Computation of Chebyshev's Stepped Transitions C~d R-1 21jVk- * 77175 SOV/108-15-1-1/13 Expressions are given for the wave impedances Pi Card 5/6 of -the steps of transitions with n = 2, n = 3, and n = 4. Values of R, p, and p. are given in tables for n = 2, n = 3, and n = 4, and for various magnitudes of / r,/ max' The tables give the sol- ution of 405 typical synthesis problems of stepped transitions. Two numerical examples illustrate the use of '-he tables for rapid computation of similar problems. In an appendix to the paper, expressions for P 1 and P 2 in a two-step transition are de- ,rived by comparing the coefficients of cos a in Eq. (1) and in an attenuation equation obtained as a prod- uct of matrices of stopped transition elements. R. Sh. Shakirova helped make the calculations. Engineering Computation of Chebyshev's 77175 Stepped Transitions sov/lo8-l5-l-l/-'j3 There are 5 figures; 3 tables; and 7 Soviet references. SUBMITTED: October 14, 1958 Card 66/6 q ati-mv, zaa 3 iJ5, J YAVIGH, L. R. Rp-marks on tb- -alcualtion of an n-number cf series-connected four-terminal networks. Radiotekh-i elektron.6 no.5.-824-826 My 761. (MIRA 14, (Electric networks) IT' S11061621000100410101010- A055/A1O1 AUTHORt Yavich, L.R. TITLE: On the computation of the elements of the resultant matrix of a cascade connection of four-pole networks PERIODICAL: Elektrosvyaz'p no. 4, 1962,4~7*0 - 71 TOM This article deals with a method permitting the determination of -the elements of the matrix of the regultant four-pole network directly from the ele- ments of the matrices of the component four-pole networks, without calculating the intermediate matrices. This method was described by Dreikorn and Stockinger (Ra- tionelle Berechnung mehrfacher Matrizenprodukte, Arch. elektr. Obertrag, 1959, 13 no. 7). The object of the present article is merely to illustrate this method on a practical example. The author applies the method to the case of a transistor- ized two-stage amplifier. He replaces the transistors by T-shaped equivalent circuits and by ideal power converters (according.to the method of E.V. Zelyakh, Elektrosvyazl, no. 1, 1957). He obtafr~s thus the overall equivalent circuit of the amplifier (Fig- 3), representin~5 the amplifier as a cascade connection of several four-pole networks. The aj matrix of the amplifier is: Card 1/2 4 -Qk ,IRL P M - S/106/62/000/004/010/010 On the computation of the elements of .... A055/A101 [a] a][ 12 ' a][ (3) a] K Where K is the resultant ideal power conversion coefficient. The author computes the elements of this matrix with the aid of the Dreikorn-Stockinger matrix chart, which is,reproduced in the article. There are 3 figures, 1 table and 3 rofer- ences: 2 Soviet-bloc and 1 non-Soviet-bloc. SUBM=D: January 23, 1961 Figure 3: L L -.-j L-.---j L..-- --i Card 2/2 3 AUTHOR: TITLE3 PERIODICAL: 3404 6/109/62/007/001/012/027 D266/1)301 Tp-~i ht-~~ Synthesis of stepped transmission line transformers with a maximally flat frequency characteristic Radiotekhnika i elektronikap v. 7# no. 1, 1962t 105 - 112 TEXT: The paper is concerned with the design of maximally flat step-transformers for specified bandwidth and reflection coeffi- cient. The design method can be applied to any number of steps. The characteristic impedances of the two transmission lines to be con- nected are - and r respectively and their ratio is represented by Po R. The transformer consists of n elements of characteristic impe- danceg Pi and length, A, where A is the wavelength at t -1 = Ao 0 he middle of the band (not necessarily equal to the free space wave- length ;Lo). The transmission coefficient of the whole system is written in the following form: C-C a-r d_l_/'4~) '77 30341 S/109/62/007/001/012/027 Synthesis of stepped transmission ... D266/D301 T :2 1 + 4R 0082no (1) 11/2 / where 0 = 2xl/A - electrical length. The absolute value of the re- flection coefficient can be expressed with /T11/2 a, follows: (2) C-11 _T 11/2 If the maximum permissible value of the reflection coefficient, Pr and the edges of tho band Al A 2 are specifiedp the required num- ber of elements can be determined, It is an interesting property of the maximally flat transformer (in contrast to the Chebyshev trans- former) that the ratio of characteristic impedance is independent of T"r. In order to apply the method which A.L. Felldshteyn (Ref. 2: Radiotekhnika, 19609 15, 11, 11) used for the Chebyshev transformer the author rewrites (1) in zie form /TJJ/2 1 + H2(cos 6)2n 1 + H2r2 2n S Card 2/4 HIMP"E 4~_l Mto 'N _14 I j i~ k~_ TUX NK, SR 34034 S/109/62/007/001/012,'C27 Synthesis of stepped transmission ... D266/D301 where Sn = 2H H = / [-/r (8) R - 11 11-12 r and varies between +1 and -1a The characteristic impedances can then be determined with Felldshteyn's methodo If the approximation 1 1 + /[-/2 (17) /f-/2 is used the resulting equations are much simplified and the reflec- tion coefficients at each step are obtained in the form of binomial coefficients [Absttactor's note*- The author is apparently unaware of the fact that this problem was solved by W.W. Hansen a long time ago (Notes on Lectures, oh. 6, MIT -Rad. Lab. 1941-1944)]. The eitAct and approximwte values of p po are compared for a six element P6 = "61 transformer for R = 1.2 - 9o It is shown that the maximum error com- mitted is about a half percent. In Appendix I an example is worked out whilst in Appendix II the ratio of the characteristic impedan- ces Pi = Pi/ro are tabulated for R 1*2 10 and n = 49 59 6. Card 3/4 X~ P11 'G_ M4 mom, 34034 5/109/62/007/001/012/027 Synthesis of stepped transmission D266/D301 There are 1 figurep 2 tables and 4 references: 3 Soviet-bloc and 1 ,non-Soviet-bloc. The reference to the English-language publication reads as follows: H.J. Ribletp Transp IRE, 19579 MTT-59 36, SUBMITTED: January 9. 1961 Card 4/4 XOICHI'L R R-oblem concernir4g, the calculation of the resulting matrix of series connected four-terminal networks. ElektrosviazI 16 no.4z7O-7:L Ap 162. (KERA 15 4) (Electric networks) (Transistor circuits) M 35377 S/108/62/017/003/003/009 D299/D301 AUTHOR: YavichL L.R._L Member of the Society (see Association) TITLE: Input resistance of stepwise junctions PERIODICAL: Radiote khnikag v. 17, no. 3,1962, 22 - 25 TEXT: The input resistance of stepwise junctions is determined. The advantages are ascertained of junctions with maximally-flat frequency characteriBtiCS,, as-compared to Chebyshev-type junctionso if constant resistance-values and small reactance-values are requi- red..A stepwise junction is considered between 2 homogeneous trans- mission lines with resistances ~o and r, The junction consists of n similar sections of length 1. It is required to find the input VV impedance zin' corresponding to different laws of change of the attenuation function L of the junctions; thereupon it is ascertai- ned which type of junction is more advantageous. The problem redu- ces to calculating the complex element of the wave transmission ma- trix T11 for the 2 types of junction under consideration: Chebyshev Card 1/3 V, K -4 nt ii, 41 N MR!- if N "-N!, C,~~ Rzw ~-_i K S/108/62/017/003/003/009 'Input resistance of stepwise junctions D299/D301 and maximally-flat. For the first type, the function L is expressed by L = /T 11/2 1 + h 2T2(cos 9) = 1 + h2 T2(n)p (6) n S n and for the second, L is expressed by L = /T 11/2 = 1 + H 2(c08 E))2n = 1 + H 20 2n (7) S where h and H are proportionality factors, S - a scaling factor, 8- the electrical length of a step, and A - the wavelength. After com- putationsp one obtains: T11 (P) = K (P - P I)(P - P2) ... (P - Pn)9(9) V(p2 7)3~ where K is the coefficient of the leading term of the polynomial T110 Formula (9) in conjunction with the,expressions for the real and imaginary parts Of Z in (Z in Zin/po), yield the solution to the problem. The resistance- and reactance components of the impe- Card 2/3 B/108/62/017/003/003/009 resistance of stepwise junctions D299/D301 dance are compared in 2 figures. The characteristics of the input impedance of Chebyshev junctions become more irregular with increa- sing number of steps. Conclusions: In stepwise junctions in which almost-constant resistance-values and very small reactances are re- quired, it is advantageous to use junctions with maximally-flat frequency characteristic and number of steps n = 5, 6. Analogous requirements can be met by means of 0hebyshev stepwise junctions with very close tolerances on mismatching. This however, cancels the advantages (wide bandpass) of the Chebyshev junctions. There are 5 figures and 3 Soviet-bloc reference. ASSOCIATION: Nauchno-tekhnicheskoye obshchestvo radiotekhniki i elektrosvyazi im4.A.S. Popova (Scientific and Techni- cal Society of Radio Engineering and Electrical Commu- nications imeni A.S. Popov) [Abstractor's note: Name of Association taken from first page of journal] SUBMITTED: January 11, 1961 (initially) July 8, 1961 (after revision) .Card 3/3 EMI, Aleksandr L,vovich- YAVICHI Lev Rafaelov:icb; SMUTIOV) FEEL I DSHT fDY=V- N-A-, VitaliY Petrovich; tekhn. red. element,, of waveguide technoloa] Spravochnik [14anual on the qoppnargoizdnt? 01month VI (min I.,11 1963. 359 P- -VF -4 ~I~o IMAO,~~ HIM kWE 'k, lrrgj~ S-, U'A" ~V'M p S~ 1' 4M. A 4~: 3 BDS KR; AP30OU24 5/0108/63/018/006/0015/0025 AUTHOR: Mazepova, 0. 1.,, Falldshteyn. A. L.; Ya Ich L..R. Members of the Society (Se.e AssociAtiou) TITLE: 'En neering-calculation.of SHF band-pass filters SOURCE.-, Radiotekhnikar Va 18# no-~/11963, 15-25 TOPIC TAGSs SHF band-pass.filter -ABSTRACT: -The -method of- _SHF-_fJ1ter-__ calculation- is based. on- an. equivalent- replacing-. of Ithe lumped-parameter systems (low--pass filters and ladder-type band-pass filters) with the filters formed by inhomogeneities in waveguides. The article offers: (1) a systematic procedure for calculating SHP filters with quarter-waTe couplings; (2) tabulated typical calzulations. Functions of effective attentuation for both the Tchebycheff and the maximum-flat-frequency response filters are evaluated. Cavity resonators are represented by waveguide stubs terminated with three induc- tive posts on each end. The design tables were compiled by means of an electronic computer. "Programing Tqas performed by' Engineer A. V. Ivakina." Orig. art. has: 9 formulas. -11 figures, and 7 tables. Card 1/2 ------------ iv~ YAVICHI L.R. Local reflection coefficients of junctions with an arbitrary n=ber of steps. Radiotekh, i elektron. 9 no.4:750-752 A 164 (MIRA 17, .75 ACCESSION NR: AP4038599 S/0108/64/019/005/0026/0029 AUTHOR: Yavich, L.','R. (Active member) TITLE: Design of Cheby*shev directional couplere with an arbitrary number of i sections SOURCE: Radiotekhnika', V. 19 .' no. S, 1964, 26-29 TOPIC TAGS: waveguide, waveguide coupler, directional coupler, directional coupler design, Cheby*shev directional coupler, transmission line ABSTRACT., A caocade connection of n reversible 8-pole networks is considered. Cheby*shev functions are developed'into Fourier Beries. The trans - mission factor for an even n 2N number, of sections is given byle, h (-I)N-q (21V 1) (N + q - 2)1 Pat _L tn)1(q-1+-)1(M-q)1 kS) 2 q-m I Lard I /Z ,vovich; YAVIGH) 1_,Sv Itafitelovich. Pri- Fb_L'DSHT',-,v,N Aleksandr LpROKHOROVA, 14 Y'"OBSO!-I,--- .. -Kh nimala :chastiye (Synthesis of four-terminal and eight-terminal micro- wave networks] Sintez chetyrekhpoliusnikov i vos,mipo- liusnikov na. SVCh. MoAva, Izd-vo "Sviaz' 1965. 352 p. IMIRA 18:5) M j -Mir 0, 51. W "M V XIRILU)V~ L.G.; YAVICIlt L.R. Wculation Cf S'u3ppi.'Ig JXICMopis and directional rcuplP~ra wi?Ah a randam wimber of elements, Padlotekh. elektron. 10 no.6, 18.- 6' ) Id 1153-1155 je 169 5S L 2609-66 oos/.1536 1539 01169/65/010/ .ACCESSION 11R: Ap5o20133 621-306.671-2 AUTHOR: Lav_hj ing smooth Chebyshev transition e TTrLw,: synthasiz ektronika, v. io, no. 1965, 1536-1539 RM, Radioteklmlka 3. e1 o S waveguide matching _7eguides !TOPIC TAGS' va T. Taylor for synthO'31zing method developed by T JABSTaAGT. A mathematical (MB Trans -I 1955s AP-30,16) i-S eadapted for synthes1z Icontinuou-S~-r'!Alator antennas naleulont (matchino 3 ction). These for Ing- the Cheloyshav-tYPO ta~,pered trans-it'10 developed: 0 relative ebaractarlstic impedanc -eare ~or th 2n sin .'expf bin _L ' F (0) where p i d U ----------- L 26415-66 EWA(h)/E',YT(1) ~-ACC NRs. AM5018510" Monograph Felldshteyn, Aleksandr Llvovich~ .,YAvich, Lev Rafaelovich frequericy f6ur-terminal,and eight-terminal networks ch6tyrekhpolyusnikov i voslmipolyusnikov na GVCh) Moscov, Izd-vo "Svyaz" 1965. 352 P. 'illus., biblio. 5TOO copies printed. TOPIC TAGS: communication network, array synthesis, superhigh frequency,-SHF comfMI cation, transmission line, waveguide coupler .PURPOSE AND COVERAGE: This book is intended-~.as a manual for scientists, technicians, and college students concerned with the theory and operation of transmission lines Theoretical and design problems concerning filtersi matching devices, directional couplers, and other similar devices. The authors thank 0.-1. Magepaya, !Le. _V. Soloviyeva. A. V.Ivakina._V. P. Smirnovi-R. Sh. ShakirM, and N. .1.,.ProMWXQ=_ for their assistance.- TABLE OF CONTENTS [abridged): ..Foreword 3 Ch. I#' Some information ~.on the classical theory-of foUr terminal networks Ch. H. External wave parameters of four-terminal-networks 31 Card UDC: 621-~,37;~.jA:62i-.~..029,.~~001.24- b -p, OUR t~i - - 0", A, WWR -Q L 26415-66 NR, AM5018516 YAVICH, M.P. (Moskva) Nffect of hypothermia on the restoration of the nucleic acid balance in various organs and tissues. 3kopokhir. 4 no.2: 55-56 Mr-Ap '59. (14M 12:5) (HYPOTHUMIA, eff. on nucleic acid regen. (Rua)) (NUCLEIC ACIDS, metab. eff. of hypothermia on regen. (Run)) YAVICH.L M.P. Changes in the intensity of protein synthesis in the injured mycardium of rate. Dokl. AN SSSR 134 no,6;1478-1480 0 160, (14IRA 13:10) 1. inatitut morfologii zhivotnykh im. A.N.Severtsova Akademli nauk SSSR. Fredstavleno akademikom A.H.Bakulevym. (PROTEIN METABOLISM) (HWT-WOUNDS AND INJURIES) --Z B JV" YAVICII, M.P. Change in autol,7tic processes in lesion of the myocardium. Bmp. khir,,i anest. 6 no 3,08-59 261. (MIRA 14: .10) ZHEART.-DISEASES) POLEZHAYEV, L.V.,- AKHABADZE, L.V.; ZAKHAROVA, N.A.; YAVICH, M.P. - ----------- Effect of pyrogenal and myocardial hydrolyzate on the regeneration of the heart muscle. Dokl.AN SSSR 138 no.3:714-717 My 161. 1, IrstitUt morfologii zhivotnykh ime A.N.Severtsova AN SSSR, Predstavleno'akademikom A.N.Bakulevym. (Heart-Muscle) (Regeneration (Biology)) (Pharmacology' '7(Tissue extracts) N-g Wf-Rif'. 11,3g J; vi M N "Ll ,-.11, 2, YAVICH, M.P. Change of SH groups in tissueb-d the injured'myocardiud of A rat. Dokl. AN SSSR 339 no.6:3411-1473 Ag 161. --(MIRA morfologii zhivotnyW,im. '66eritsova AN SSS 1. Institut A.N' R. Predstavleno akademikom A.N. Bakmlsyym. (MMAPTO GROUP~ - (HEART-"WOUNIS AND INJMUY.S) N., R -H. MOWN, 1", POIEZHAYEV, L.V.; AKHABAD2E. L.V.; MZLAYEVA, N.A.; YAVICH, M.Pi-.---.- Regeneration of a rat's myocerdium as an'effect of ',iibonucleic acid and pyrogenal.-,treatment. Dokl.AN SSSR .345 no,5:1180-1183 (MIRA 15:8) I. Inititut morfoloRii zhivotnykh im. A.N.Severtsova AN SSSR. ART-KJSCLE) (PROGENk (NUOM ( (REGENERATION (Bidb*)) m m ; -, , Z A' FE :!04 M g uiffi" m ~~v~~,~Zgnqg ror E ,YAVIGH-l M.P. . ......... Variation in nucleic acid content during t~e bealing of an injured myocardium. Dokl. AN SSSR 147 no.1:248-251 N 162. (MIRA 15:11) 1, Institut morfologii zhivotnykh im. A.N. Oevertsova AN SSSR. Predotavleno akademikom A.N. Bakulevym. (Nucleia acids). (Heart-44usele) (Regeneration (Biology)) F. Uk~ P "N' V7 POLEZHAYEV, L.V. (Moskva V-333, 2-y Akademicheokiy pr., d.4. kv-4); AKHABADZEJ, L.V.; MUZIAYEVA , N.A.; YAVICH, M.P. Stimulation of the regeneratioh'of the myociirdium In inhibited cicatrization. Grud. khir. 5 no. 2:47-54 Mr-Ap 163. (MIRA 17:2) I Iz laboratorii eksperimentaltnoy morf6logii'zhiv-otnykh'(zav.- ;roof. L.V.Polezhayev) Institute morfologii zhivotnykh imeni A-N Severtsova (direktor chlen-korrespondent AN SSSR G.K.Khrushch;v). V TAVICRI, M.P. Effect of vitamin B12 and pyrogenal on the intensity of prot4n synthesis in a damaged heart muscle. Dokl. AN SSSR 150 no.1:217-220 Yv 163. (MIRA 16:6) 1. In5titut, morfologii zhivotnyth im. A.N.Severtsoia AN SSSR. PrjOstavleno akademikom A.N.Bak4qvym. (CYANOCOBALAMINE) (PROTEIN METABOLISM) (HEART-MUSCLE) (PYROGENAL) POLEZHAYEVv L.V.; AKHABADZEI L.V.; MUZLAYEVAI N.A.1 YAVICH,, M.P. Stimulation of myocardium regeneration in rabbAts and dofe, Dokl. AN SSSR 15.1, no.6:1450-1453 D 163. (14IRA 17:1 1. Institut, morfologii zhivotnykh im. A.N. Severtsova AN SSSR. Predstavleno akademikom A.N. Bakulevym. POLEZRAYEV, Lev prcf.,~ O"ABADZE, Lyubovl Viktorovm; iVOCH, Marina MIJZLAYEVA, 11ina Andreye%rnaj KOSOBUTSKIVjV4V.T (Stimulation of the regeneration cX -the heart ruscle] Sti- muliatsila regeneratsil myshtsy serdtsa. Moskva. Nauka, 1965. 395 P. (MIRA 18:11) 1. Akademiya na-uk SSSR, lnsti-',~ut morf olngli zhivotrrykh. YEGOROV, I.F., inzb.; YAVI_ inah. Now type of fastening for pin couplings. Sudostroenie 24 nn.7:69-70 JI 158. (KIRA 11:9) (Fastenings) ZAYTCEVI, V.F., inzh.; YAVICH, S.M., inzh. Electrochemical deoxydation of feedwater. Prom. energ. 17 no.12% 18-21 D 162* -4) r t4 'W pt~ AUTHOR: Yavich,, Zo,, Kaster of Sports, Villnyus (Vilnius) TITIS: First (Aviation-Sports Club Comipetitions)"in the Republic (Vperyyye v respublike) PERIODICAL: K1711ya rodiny, 1958, Nr,.3.1,, p 3.9 (USSR) ABSTRACT: The author states that th* opening of the first aviation-sports club In Villnyus contributed greatW to the develolment and interest in Parachute sports in the Lithuanian Repub3ic. ASSOCIATION: Aviatsionno-sportivayy klub (Avistion-Sporte Club) Card 1/1 r'5*_UwMW out--, 011%~IrA-M!UWI_C~A !M g.;2 f: V x SILAKOVA, A.I.; TRUSH, G.P.; 4YILMOVA, A. Micromethod for We determination of ammonia and glutamine In triobloroacetic tiavue extracts. Vop. mod. khim. 8 no-51 538-5" S-0162 (MIRA 1784) 1. Inatitut biokhimii Akademii nauk Ukrainskoy SSR,, Kiyev. 41 ~l t in t~ f-r7z. or, r 41je Ir uf aamonla in Lhe Muscles- VOP- med. R. 10 no.l:40-.0 '64- (M-D-h -17: 12) 1. Institute of Biochemistry, Academy of Sc-lenQes of th,~! likra.;- nian S.-S.R., 'j4; BUDNIKOVY P.P.; VOLAROVICII, M.P.; POLINKOVSKAYA, A.I.; jUjZjr-IU, Study of the character of the expansion of some types of volcanic, hydrated glass by means of.motion-picture-filming. Stroi.mat. 9 no.301-33 Mr 163. (MLRA 16:4) (Perlite (Mineral)) (Motion-picture photography) t VOLAROVICH, M.P.; POLINKOVSK,AYA, A.I.; YAVITSp I.N. Blistering of water-containing vulcanic glasses (perlites) studied -by motion-picture photography, Koll.zhur. 25 no.5:512-514 S-0 ~163. (MIRA 16:10) 1. Respublikanskiy nauchno-issledovateliskiy institut novykh stroitellnykh materialov, Moskva. % ,j I zi~'_s"-:'~~-ftj3nj. !i~i '1~1 kA 5-1 W, S4. I.N., inzh. Investigation of the viscosity and fusibility of some vol- (gmic glass containing water. Sbor. trud. ROSMINS no.25z 54-62 t62 (MIRA 17z8) TASEDY I.N,,, inzb. j It M, V.V., inzh, Effect of some properties of acid, volmmiap vater-con- taining glass on the quality of expanded perlite. Sbor. trud. ROSNIIM no.25t94-104 162 (141RA 170) j M, 41 BUGOV,* A.U., inat...; rAnTs. init. Study of the atrannod statim of holmingm and flange connections of ban IoWw. [Trudy) LMZ no.loil9l.198 464, OCRA 18: 1.2) MR KOVALENKO, V.A., inzh.; WITS S.N., inzh, Results of the field tests of moments acting on the blades of the gate apparatus of a reversible-blade hydraulic turbine. Energomashino- stroonle 10 no.8;12-14 Ag t64, (MIRA 17i11) W NMI 1. YAVITS, Z. B. 2. USSR (600) 4. Moscow - Floriculture 7. More attention to floriculture. Gor khoz Mook No 11 1947 9. Monthly List of Russian Accessions, Library of Congress) April -1953, Uncl. YENIKEYEV, P.N.1 KOZLOV,, P.T.t YA_YlqN.,,_P.Ye. Oil and gas resources of Central Asis and proBpects for their development. Geol.nefti i gaza 9 no.2:1-5 F 165. (MIRA 18:4) 1. Gosudarstvennyy geologicheskiy komitet SSSR,, Vessoyuznyy zaochny-y politekhnicheskiy institut i Vsesoyuznyy nauchno- issiedovateliskiy geologorazvedochnyy neftyanoy institut. CT!"TRI : us.'Yl : Soil Sclonce. orgfink FortilJzora, A~?S. JOUR. : PZh.Bi.ol iwoh 3 1959 , A I I T P'OR Furbatov, S., Kirgiz Scientific Research Inst.4tute of Agricultu'vo llertiliziLg Ef feet of Waste ',later, and Sewt-,ge in Chayakeya Valley. 0 7`~ T G. PUB. Tr. Kirg. ii.-io in-ta zfimledoliya, 15f)7, vYP- .1, 1.52-157 A P~ 3 T? ;I augar refir-eriet in CLuyskama, Valley, KirCI-4 S~P, severEii hund-rea thoueaand tons of filter prose f.---vsqrj Pc- contalfling 10-15~" of orgallic mattor, t~p i0 of of Ca and differf~nt trace a!- ., 0.5% Of N v k.0 om-antz~ Thaaj~ refineries dump 4-.5 million cubic niiters of wanta wqtar annually, enriched with Ca and 'L-~g Und C(jII-: tairiing 25-58 kilograms of 11 in 1000 cubic mit'ars , -].ad almo X.20 and P, 0 Thia water, as well an the f I ter Prang Bewage are an oxcelleat fertilizer fol, corin &,Id L-T 2 in M -77 qv~ S" E UUUNTRY CATEGORY ABS. McR. 1 RZhBJj.O1.P I-TO. 1959, INO. 10704 07HOR TITLE ORIG. PUB. A P S"T M4 C T other a,~rictiltural crops on woll drained siorozoia fok)t- hill plaius. in the experionce on filtration ficlar, on weakly solonized siorozems uhich received for thf~ rxecod-~ ing 2t-., yearn from 6U-80 to 90-120 cubic moteru at wznte water, the agrophysical tnd ogrochomicnI propert.'eii oftho Poil Amprovea, oapecially with the combined application of wast6 water and sewage. The y1eld of cora graiL, on the fertilized plots comprized 35-41 ceatners/ha againot 21 contn!tri5/ha on the control plots. Waste water uriq I filter pres4 nowvge incrorise uharply the yiolds of &~in- flower, cucv~rbits, sorgh=, onions, ena beets. h. N. '/2 Sokolov ..A RD -A~ AP~ YAVLANOV., I.G.,, felldsbor (solo nabotskaye., Ka-lininskaqa oblast) Conscientious aspects of the work In a medical and obstetrical station. Felld. i akusb. 28 no-3:50-51 W63- (KIRA 16:7) (MEDICINE, RURAL) SIVOKONEIIKO, I.M.; YAVLENSKIT, K.N.; YABLOITSKAYA, L.V. Using small-size ball bearings in the manufacture of aeronautical instruments. Trudy LIAP no.11:62-68 156. (MIRA 11:2) (Ball bearings) (Aeronautical instruments) A.JKA_R~ SOV/124-58-1-176 Translation from: Referativnyy zhurnal, Mekhanika, 1958, Nr 1, p 19 (USSR) AUTHORS: Sivokonenko, I M. Yav K N TITLE: The Rpm Dependence of the Friction Moment in Instrument Ball Bearings (Zavisimost' momenta freniya v pribornykh shariko- podshipnikakh ot chisla oborotov) PERIODICAL: Tr. Leningr. in-ta aviats. priborostr. , 1956, Nr 11, pp 69-80 ABSTRACT: A presentation of the results of theoretical and experimental research on the friction moment of ball bearings operating at high rpm (e. g. , in gyroscopes and high-speed motors). The investiga- tions were performed up to 25,000 rpm. The authors are of the opinion that, above 4,000-6,000 rpm, centrifugal forces exert a noticeable influence on the magnitude of the friction moment.v V. M. Alyamovskiy Card 1/1 VINETS, Ya.M.; SIVOKONENKO., 1,M.; $11MMOVICII., I.S.; YAVLENSKIY, K.K. Effect of magnetic fields on the antitorque moment in instruzent, ball bearings. Avaprom, 26 no.8:27-29 Ag 157. (IMA 15:4) (Ball bearings-Teating) -.5 r0":i;,--A 1"," Pe v S0V/123r5qrl5-,6Ol4l Translation from; Referativnyy zhurnal. Manhinostroyenlye, 1959, Nr 15, p 177 WSSR) AUTHORS: Sivokonenko,:I.M., Yavlenskiy. K.N. TITLE.- Variations of the Friction Moment in Instrument Bearings Depending on the Magnitude of Atmospheric Pressure PERIODICAL: Tr. Leningr. in-t aviats. prlborostr., 1958, Nr 19, PP 155 - 158 ABSTRACT: Results are given on the investigations of variations of the moment of friction in lubricated and non-lubricated center bearings and ball bearings with an outer diameter of 10 mmX in dependence on variations of the rare- faction of the surrounding medium. The-investigated steel centers or inner bearing races were connected with an electromotor, and the ugate thrust bearings and outer bearing races with a dynamometric device con- sisting of a speculum, electromagnetic damper and hair-spring. The twisting of the latter, under the effect of the moment of friction, was recorded on photographic paper by the deviation of the light ray reflected Card 1/2 from the speculum. The drive and dynamometric device were put under a hood BOV/123-59-15-60141 Variations-of the Friction Moment in Instrument Bearings Depending on the Magnitude of Atmospheric Pressure from which the air was pumped out. The investigation showed that, at a decrease of -atmospheric pressure down to 2 _ 10-2. the moment of friotion-increases: for center bearings without lubrication by.11%, with lubrication by 15%, and for ball bearings without lubrication by 20%, and with lubrication by 38%. 3 figures, 4 references. K.S.M Card 2/2 GORDIYENKO, Prokopiy Lukich; SIVOKONENKO, Igor' Mikhaylovio; FADEYEVI Aleksey Antonovich; YAVLENSKIY, Konstantin Mikolayivich- DEMENTIYEV, Khrisanf Ni_kfro_ro_v1_cK,_-LY1rST1BERG, V.F., d.; PONOMA,RRV, V.A., tekhn.red. (Laboratory equipment for measuring friction forle moments in the supports of apparatuses. Device-for testing the i*Ct' hardness of ice infield conditions-)Laboratornaia ustanoiw dlia izmereniia mokentov ail treniia v oporakly priborov. Ustroistyo dlia ispytaniia udarnoi tvardosti l1da v polevykh usloviiakh. Moskva Filial Vaes.in-ta nauchnA tekhn. informatsii, 1958. 11 p. IPeredovoi nauchno-tokhnicheskii i proizvodstyennyi opyt. Tema 32. No.P-58-33/6) (MIRA 160) (Engineering Instruments--Testing) SIVOKONEffir.0 I.M.; YAVLENSF investigating ball "hearings used in-gyroscopic devices. Vop. prikl. gir. no.2sl6-24 f60. (KRA 15W (Ball bearings) (Gyroscopic instruments) MORA R Q =77 Al ir/