SCIENTIFIC ABSTRACT SZULGA, T. - SZULKIN, P.

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SCIENTIFIC ABSTRACT
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SZU1GAj Teofil; WIECZOREK, Zbigniow; MADRA, Janina Reduction of activity of tuberoaine after contact wit.'s ouspensions of tubercle bacilli of various densities. Arch, immun. ter. doew. 9 no.4:657-666 161. 1. Department of Mycology, Institute of Immunology and %cperimental Therapy, Polish Academy of Sciencesp Wroclaw. (ANTITUBERCULAR AGENTS pharmacol) (MYCOBACTERIUM TUBERCULOSIS pharmacol) WIHOZOREK, Zbigniew; SZULGA, Teofil Electrophoretic separation of tuberosine. Arch. immun. ter. dosw. 9 no.4:667-671 161. 1. Department of Mycology, Institute of Immuft-ology and 4xperimental Therapy, Polish Academy of Sciences, Wroclaw. (ANTITUBERCULAR AGENTS chem) (=TROPRORESIS) SKURSKI, Adam; MADRA, Janina; SZULGA, Teofil The use of corpus vitreum from bovine eyebeLlIs for the culti- vation of tubercle bacilli in He-La cells. Arch. imini. ther.i, exp. 10 no-4:929-933 t62. 1. Department of Mycology, Institute of Imt-nmology and Experi- mentAll Therapy, Polish Academy of Sciences, Wroclaw. (WCOBACTERIUM TUBERCULOSIS (TISSUE, CULTURE) (VITREOUS BODY) SZUJL.A,__Teqfil; MADRA, Janina; KOWALCZYK, Halina e 4 Characterization of two atypical acid-fast strains isolat from clinical material. Arch. immun. ther. exp. 11 no.1/2':307-311 163. 1. Department of YTcology, Institute of Immunolog:r end Experi- mental Therapy,, Polish Academy of Sciences, Wroclaw. (MOBACTERIUM TUBERCULOSIS) SZULGA, Teofily MADRA, Twdna; KOWALOZYKv Eblirm- Studi3B on differentiation of tubercle immilli isolated frm h=an beings, cattle and poultry. I. Mmphologic and cultural characteristics. Arch. imun. ther. expe n no.3.,377-394 163. .1 - 1. Department of NYcology,, Institute of InquAology and Experi- mental Therapy, Polish leademy of Sciences., Wroclaw. NYCOBACTRU'UM TUMMCULOSIS) MIGOBAGMUM BQVW) MMOBACTE&TUM) - - BACTERIOLOGIGAL TBCHNIGS) I (CATTLE) (POULTRY) SZULGA, Teofil; MADRA, Janina; KOWALCZYK, Halina Studies on differentiation of tubercle bacilli isolated from bmnan beings, cattle and poultry. II. Enzymic activity. Arch. irimm. ther. exp. 11 no-3:395-403 163. 1. Department of Mycology, InstJ tute of Imnunology and Experi- mental Therapy, Polish Academy of Sciences, Wroclaw. (MYCOBAGTERIUM TUBERCULOSIS) (MYCOBACTERIUM BOVIS) (MYCOBACTERIUM) (BACTERIOLOGICAL TECHNICS) (CATALASE) (UREASE) (PEROXIDASES) (NICOTINIC ACID) METZGER, Mieczyslaw; SZULGA, Teofil Lysozyme levels in the sera of guinea pigs imd rabbits in the course of experimental tuberculosis. Ar.-h. immun. ther. exp. 1-1 n0-3-489-497 163. 1. Department of Protozoology and Department of Mycology, Institute of Immunology and Experimental Therapy, Poliesh Academy of Sciences, Wroclaw. (Tumcnosis) (MURAMIDASE) (ENZYME TESTS) (BLOOD CHEMICAL ANALYSIS) METZGER, Mieczyslav; SZULGL, Teofi-I The lysozyme activity of the blood serum of gainea pigs and rabbits in experimental tuberculosis. Postepy hig.med.dosv. 17 no.6:725-729 N-D163 1. 3 Zakladu Protozoologii i z ZaklacN Mykologii Irstyt-ut-a Immunologii i Terapii Doswiadczal--tej PAN im. L Hirssfeada we Wroclawiu. Dyrektor: prof.dr.S.531opek. SZULGA., Teofil; MADRA, Janina; KOWALCZYK, Halina Studies on diffardntiation of tubercle bacilld isolated from. humn beings) cattle and poultry-. II..Enzywic activity. Arabs, Jawne there expe 11 noei3:395-403 163. .1. Department of Mycology, Institute of Immunology and Experi- meat4L1 Therapy,, Polish Academy of Sciences, W.,roclaw. (NYCOBACTERIUK TUBERCULOSIS) (WCOBACTERIUM) (MYCOBACTERM BOVIS) (BACTERIOL03ICAL TECMMS) (CULTURE MEDIA) (CATALASE) (SULFATASES) (UREASE) (FEROXIDASES) %POULTYff) (NIGOTINIC ACID) (CATTLE) U .1; WAGUNIK, Zenon; MADRA, Jtudna; KOWALCZYKp Arlam; Halina. Classification of acid-fast bacilli isolated from the milk of cows and from sewage used for fertilizing pastures. I. Patho- genic and saprophytic bacilli. Arch. immun* thero expo 13 no,2: 189-196 165 1. Department of Itreology, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Chair if Epizootiology, School of Agriculturet Wroclaw. WIECZOREK, Zbigniew; SKURSKI, Adam; SZULGA, Teofi;; KINPA, Bozena; CZAJKA, Maria Phagocytosis of atypical mycobacteria from various sources. Arch. immun. ther. exp. 13 no.1:1-5 165 'Ohagocytosis of acid-fast bacilli in the presence of hunan I and animal sera. Ibid.:6-12 1. Department of Mycology, Institute of Immunology and Ex- perimental Therapy, Polish Academy of Sciences, Wroclaw. __~ZTLL~A,.-Teofil; SZARO, Alfred; MADRA, Janina; KOWALCZYK, Halina Classification of acid-fest bacilli isolated from the milk of cows and from sewage used for fertilizing paStures, Pt.2. Arch. immun. ther. exp. 13 no-3:331-335 165. 1. Department of Mycology, Institute of Immunology and Ex-peri-mental Therap3, Poli.9h Academy of Sciences, Wroclaw; The Provincial Tuber- culosis Dispensary in Wroclaw. _~ ~~,A,.Toofil; ZbIbnIew; MADRA, Janina; KOWALCZYK, 111alina Classificat-Jon of acid-.fast bacill-i isolated from the milk of cows and from sewage used for fertilizing pasLures. Pt.3- Irch. immun. ther. exp. 13 no.3:336-343 165. 1. Department of Mycology, Institute of Immunology and Experimzazntal Therapy, Polish Academy of Sciences, Wroclaw. SZUlr,A, Teofil; ShIJRSKI, Adam; PELC, Wieslaw Studies on the occurrence of the cord factor in at,,Tl2al mycobacteria. Arch. immun. ther. exp. 13 no.3:344--354 165. 1. Department of Mycology, Institute of Immunology and Expe- rimental Therapy, Polish Acadomy of Sciences, Wroclaw. POLAND Sanitary Microbiology. Sanitary Microbiology F-3 of Water. Abs Jour: Ref Zhur-Biol., 1958., No 179 767Z7. Author Paluch, Jan; Szulicka, Janina; Szymkiewicz, Aldina. Inst Not given, Title Investigation of Rapid FI'LLers in Kozlovaya Gor, Orig Pub- Gaz, woda, techno sanit.,, 1957, 31, No 7, 250-Z56. Abstract- No abstract. Card 1/1 CABEJSZEK, Irena; RYBAK, Xariai- 110~' ~-j J&Wzi~~WOJCIK~ Jozef Attempt to determine permissible levels of metoxychlorine in water. Roczn. panstw. zakl. hi.g. 14 no-4:3441-354 165. 1. Z Zakladu Higieny Komunalnej Panstwowego Zakladu Higieny i z iatedry Higieny Osiedli AM w Warnzawie (Kierownik: prof. dr. J. 0 Just). POIAITD/Radio Physics - Propagation of Radio Waves. Abs Jour : Ref Zhur Fizika, No 12, 1959, 28128 Author : Szulkin, D. TI-Ist Title : On the Reflection of Electromagnetic Waves in the Ionosphere with Vertical Sotuiding Orig Pub : Bull. Acad. polon. sci. Ser. sci. techn., 1957, 7, No 1, 65-68 Abstract : An investiEption was made of a solution that descri- bes the reflection of radio waves from a linear layer. It is shoirn that at a small gradient of electron con- centration, the reflection of the waves takes place in a very thin layer, containing a point in which the index of refraction of the inhor-logencous layer va- nishes. -- N.G. Denisov Card 1/1 - 99 - SZULKIN, Elzbieta; OSTROWSU, Teresa State (serial) control of lyophilized BCG vaccines. 1-fed. dosw. mikrob. 11 no.1:77-84 1959. 1. Z Zaklacbi Badauia Surowic i Szczepionek FM Kierownik: prof. dr H. Meisel. (BGG VACCM&TION state control of 1yophilized vaccines in Poland (Pol)) SZULKIN, Elzbieta Crohn's method in the application of gluismic acid medium for the evaluation of lyophilized BCG vaccine. Med.dosw.m1krob. 12 no.4: 369-374 16o. 1. Z Zakladu Badania Surovic i Szczepionek P.Z.H. Kierownik: prof.dr H.Meisel. (BCG VACCINATION) (GLUTAKATES) POLAND SPORZYNSKA, Zdzislawa, SZULKIN, Elzbieta, and KUDELSKI, Zyg- munt; Department for To~tinj~,Sdra MnW~~Cines (Zaklad Bada- nia Surowic. i Szczepionek), ~ZH [Panstwowy Zaklad Higieny, ,ione in Warsaw (Director: Prof. Dr. State Institute of Hyp 11. MEISEL) "Laboratory Tests of Immunological Properties of Polish Di-Te-Per Fluid Vaccine." Warsaw, Iledycyna Dosiviadbzalna i 'Mikrobiologia, Vol 15, -No 3. 63, pp 189-j.96 Abstract: [Authors' English summary modified] Study aimed at devising a method for testing the diphtheria component of tVie fluid vaccine, determining its stability, and effect of season on animal reaction to it. Two 2.5 Lf doses were con- sidered as optimum for immunization, and antitoxin level with account of survivors of animals challenged ulth proper dose of toxin was measure of immune response. Storage for 2-31 years did not diminish potency of preparation, and some vari- ation was noted in animal reiponse between spring and winter as against fall and summer. 1 Polish and 4 Western refs.---.. lal-joratory evaluaf~jon of immunogenic properties of no,,_adsor 'tri-Vacc-Me F)i-'I'e-Per pt-oduced if' P01and. "Me telArl'us component. mikroUol. 16 rio.2:111-122 164. ladu 13adania Suro!,lic i Szczepioriek 1~anstwowerlo Zakladu Hii~_Ieii77 (Yiaro,,mik: prof. dr. H. Heisel.). DNMOLOGY POLAND SZULKIN Elzbleta, Department of Control.of Sera and Vaccines of,the National rn-s-M:U- 0 #Iine,ln Warsaw'(Zaklad'Badania -Surowic I Szczepionek PZH) "Comparative Laboratory Evaluation.of ~Irotectlve Properties of French and Brazilian BCG Substr6ins and Vacdinds Produced from.these Strains In Poland" . .......... ...................I........ Warsawo'Mad~dYA6'DosWladtial6t Mlkr6blol6~la, Vol 18, No 4, 1966; p. 345- ..352 'Abstract CEnglish summary modified]: Comparative study of French and 'Mr-a-iTT'ran BCG strains and of Pollsh'produced vaccl*ne therefrom as tested In guinea pigs and rabbits, showed that either vaccine significantly pro- longed the survival time In H37Rv-infected rabbits, Detailed vata gave no clear Indication of the superiority cif either 0rain. Graph, di.agram, 2 tables; 5 Pol;rh, .13 Western references. SULKIN, Ema A case of chronic pulmonary infiltrations with eosinophilia. Polskie arch. med. vewn. 31 no.3:421-427 '61. 1. Z Oddzialu Chorob Newnetrznych Instytutu Gnmlicy w Warazavie Kierownik Oddz: prof. dr med. W. Hartwig. (LOEFFLERIS SYNDROIE case reports) ;01XL1 D1 Lj =111.~~and T"01 !OKA, Lila; Derartmant of -Internal Di:!,3 lal cho~-ob Wovm-etrzn~,it,.1i), Tnstltli~e of Tubar- U eulosi!: (Ins4zyrut qru.zlicy), Director: Prof Dr Med B. JQCH- WED, I "'., ard DGPartoment of Radiolo7.r (Oddzial RaOlloloc-li), instittite of Tuberculosis, Direotor: Prof Dr ~Icd H. 0SISOVI- SK I A. . in the CC'U--Se Of StaP'2.V:LO(,,00CiC -7,naU- t monla in Adults. Case fiepor Warsaw, Polski Tvr.,odrAU: Lakarski Irol YVTII, II o 6o 4 Felb 1963, PP 221-224 ZAathorsl Lnglish aum-nary modifie~7A case of bUllous e1'aPt1Y8e1MP- ill the course of staphylo';ceaia pneumonia in. an ad-,,It is reported. Antibiol"Ac treatment and trans- fusicne during 6 weeks led to com*plete clinical improvement. The siens of bullous emph~ssma decreased slowly and -were observed e7en aft;~er 7 weeks. I table. 4 illusirations, F ench~ 11 Polish references. -j SZULKIN, Emmavy PAWLICKA, Lila Bullous emplqsema during the course of staphylococcal pneumonia in an adult. P01. tyg. lek. 1-8 no.6:221-224 4 F 163- l. Z Oddzialu Chorob Wewnetrznych Instytutu Gruzlicy; kierownik% prof. dr med. B. Jochweds i. z Oddzialu Radiologii Instytutu Gruz]-i--,y.* kierowniks, prof. dr med. K. Ossowska. (STAPH INFECTIONS MPIRATORY) (PNEUMONIA) (EMPHYSEVA) (BLO'OD TRANSFUSION) (ANTIBIOTICS) P 0 L A_ND MULLER, Jorzy, SZULKIN, Diima, and KOWALSKI, -Jan, Division of' Internal Dis4a`s-e__s__(_dUa-z1_a-f Wewnetrzny) (Director: Prof. Dr. B. JOCHWEDS) and Department of Physiopathology (Zaklad F'lz.jopatologiczny) (Director: Dr. A. KOZIOROWSKI) of the TUberculosis Institute (Instytut Gruzlio),) in Warsaw (Di- rector: Prof, Dr. V. JAROSZEWICZ) "On the Treatment of Hypercapnic Coma. Case Report." Warsaw, Polski jZgodnik Lakarski, Vol 18, No 11, 11 Mar 63, pp 400-402. Abstract: [Authors' English summaryj A case of success- fully E-reated hypercapnic coma is reported. 1he treatment of acute respiratory failure, chronic therapy, and prophyl- axis are discussed. Mie 23 cited references comprise three (3) Polish and 20 references in English. OSSOWSKA, Yxystyna; ~~ULMO Enos, Chronic tuberculous mediastinitis. Gruzlica 31 no.2:151-158 163. 1. Z Insty-tutu Gruzliey Zaklad Radiologii Kierownik: prof. dr med. K. Ossowska Oddzial Wewnetrzrq Kierawnik: prof, dr med. B. Jochweds Dyrekl,'-,or,. prof. dr med. W. Jaroszewiez. (NEDIASTIN%I) (TUBERCULOSIS) (TUBERCULOSIS, LYMPH NODE) (VENA CAVA, SUPERIOR) (VASCULAR DISEASES) MIGIF2SKII 141chal.;-SULKIN, IMma$KApIoRKOWSKA., viulda SZIULKIN,,_~, _KOWALCZYK, Maria.; STYSZh`WSKA, Hanna Sermoucoid in viral hepatitis patienta.. Fol. tyg. lek. 19 no.32:1230-1232 10 Ag 164. 1. Z Oddzialu Chorob Wewnet--mych Instytutu Gruzlicy (kierowniks prof. dr med. B. Jochwedsv) z II Klinik-4 Chorob Zakaznych Akademii Medycznej w Warszavie (kierv4niki prof. dr med. B. Kassur) i z Zakladu Chemii Klinicznej Instytutu Gruzlicy (kierowniki dr A. Wclanska). ROWINSKA, Ria; SZULKIN, Onma; STYSZEWSKA, Hanna Influence of the extent and dynamics of tu Irculaus changes and coexisting diseases on the seromucoid lerel L-1 pulmonar7 tuber- culosis patients. Gra2lica 33 no.9t749-757 S 1 65. 1. Z Kliniki Chorob Plue (Kierownik: doc. dr. P. Krakowska)-,- 2 Kliniki Chorob Wownotinnych (Kierownikt prof. dr. B. Jochwe6) i z Zakladu Biocb-mii KlinicEnej (Kierownikil dr, A. Wolanoka) Instytutu Gruzlicy- SZULKIN. Michal Tenth anniversary of the death of engineer 4Tozef Pr=bnik. Gosp wodna. 22 no.1:28,-31 162. 1" - ~- -''l I , '' - - .- ... 1. - . - 11 1 . - - .-I - . I . . , , , I 9~~ , ?? ~. 10171-M. ~-- ~-~ tt-- alWIll ~Pl. - 0 ~ : ~ n M ! M W" ~-- , R I W - ~ li SHULIKIN,.Pavel.,_professor; MALETSKIY, Ignatsy, professor Radio in the people's Poland. Radio no.11:1&-19 N155- MHA 9:1) (Poland-Radio) Poland/Radiophysics - Sirperhigh Frequencies, Abst Journal: Referat Zhur Fizika, No 12, 1956, 35411 Author: Szulkin, P. Institution: None Title: Excitation of Cavities by a Beam of Electr~~y, Density-Modulated Original Periodical: Arch. Elektrotechniki, 1956, 5, No 1, 149-208; Folishl Russian and English resum4s Abstract: Investigation of the excitation of cavities by density-modulated electron beam, the cross section of-which equals the cross section of the cavity. The variat1w of the natural frequencies of the cavity, produced by the presence of the bemn is determined, as is the effect of the various factors on the aigplitude of the oscil- lations. It i-a established as a "sult of -the investigation that detuning the cavity may reach several percent and that the ampli- tude of the oscillations is affected by the following factors: degree of excitation, average current density, velocity of electron Card 1/P FOLAND/Rndio FhYsics - Propagation of Radio Waves 1-5 Abs Jour t Rof Zhur - Fizika, No 9# 1958p 110 21118 Author i Szulkin P. Inst Not Won Title Effect of Refraction and Electric Ptranotors of the Earth on the Propagation of Electromagnetic Waves in a Diffractivo Region Orig Fub i Bull. Acad. polon. sci., 1957, 01. 4, fi, No 5., 295-300, XXVII Abstract : Description of r method of detornining the fiolO. of terres- trial waves in the shadow region for a:rbitrary values of the equivalent radius of the earth's sphorc, using a set of curves of the field intensity of the terrestrial waves, plottod for normal etnosphoric refraction. Analyzing the Bremer-van der Pal diffraction formula, the author estab- liBhos that replacing the previous value of the equivalent overth's radius by a certain new vrluo is equivalent to changing over to now values of veve lengths, distance, and height of the antenna (retaining the previous value of the Card 1/2 48 FCUND/Rndio r-hysics - FrOPEIgntion of Redio Waves 1-5 Abs Jour : R,f Zhur - Fizike, No 9, 1958, ~jo 21,19 Author : Szulk-in F. Inst : Not Man - Title : Effect of Antenna Height on Ultrashort Wave Field Intensity in a Diffrective Region. I. Case of Low Antermse. Crig Pub : Bull- Acad. Polon. sci., 1957, Cl. 4, 5S 301-300, XXVII Abstract : It is kncwn that at low antenna heights, theheight factors Of the diffraction formula for the shadow region is inde- Pendant of the serial number of the sumed waves. In order to determine the lirlits of epplicability of this approximp- tion, the authors using the PsYMPtotic expressions for the Hanicel function, establishes sn approximate expression for the height fectorsy coinciding with those previously ob- tainod by Bremor. It is shown1hrt the dependence of the height factors on the height above the surface of the earth is characterized by the existence of the raininum, partic- ularly noticonble in propagation over see water. In propn- Cerd 1/1 gation over moist sails there is no mininura. 1CUUND/Radio Physics - Propagation of Radio Waves 1-5 Abs Jour Ref Zhur - Fizke, No 11, 1958, No 25871 Author Szulkin F. Inst .-I "o Give Titlc : Effect of Antenna Height on the Magnitude of the Ultre Short- wave Field in n Diffrnetive Region. II. Case of High Antomao. Orig Yub : Bull. hep-d. rolon. sai., 1957, 01. 4, 5, No 63 351-356, XXXII of rsy.-rtotie rerrosentntion of the function Hl~ I for larro values of the orgurento the outhor derives expr 9sions for the gain of the mtenne os r function of its height, end also for the electric field intensity ns a function of the aperture hoightc of the receiving and trensmitting antennas. The fon-ules cbtrined are bpl in the diffraction region for antonne, heights H :_7 60 /,- V3 where >~_ is the wavelength (fcr the case cf smcll antenns heights see Raferet Zhur Fiziks, Crrd I 1/p Abstrect ; Fror- the general fomulas, obtrined by Brermers Vith the eid 4o calculated values of the field differe from- those obteinedby means of exact fomulvs (with the aid of an electronic com- puter) by not nore then 0.5 to 0.7 decibles. Card t 2/2 m POLAND/Radio Physics - Pr3paaation of Radio Waves i Abs Jour Ref Zhur Fizika, No 8, 1959, 186e5 Autlicir Szulkin, P. Inst Title PrDpaEption of F14116 kecti~am&metic Wave in Non- Cjnductin6 Medivn, vith tifieiakly-DecreasinG Dielectric Canstants OriG Pub Bull. Acad. polon. sci. Ser. Sci. techn., 1958, 6, No 4, 241-244 Abstract The author considers the propaption of a plane wave, nor- Lmlly incident fronvacuum ontt.~af~stratified inhomage- neous non-absorbintj layer. The dielectric constant of the inhom:)r,-ene)us layer, Z , varies linearly from Z' 1 at the lower bDimdary.to -~ =-O on the upper bjundary. Adjacent t~; the layer, bey-)nd it, is a re-,7Ajn where C 0. A value 3f the reflectim coefficient is obtained and it is showu that I R 1. Cara 1/1 SZULKIN, Pawel The function of the correlation between the output of linear systems and the input in the form of incidental noise of limited bandwidth. Archiw automat 4 no-3/4:319-327 '59- (EEAI 9:7) 1. Polska Akademia Nauk (Electronic control) (Servomechanisms) (Least squares) SZTJLKIN, P. A variational method applied to the analysis of a ridge-wave guide. Bul Ac Pol tech 7 no.10:573-579 '59. (KEAI 9:7) (Wave guides) (Calculus of variations) (Radio) (Functions) SZULKIN, P. Matrix form of the equiations of propagation in an anisotropic medium with a constant magnetic field. Ba Ac Pol tech 7 no.10: 581-587 '59. (EEAI 9:7) (Electromagnetic waves) (Magnetism, terrestial) (Ionospheric radio wave propagation) SZUIKIN Conditions for laminar flow of a focused electron bean. Bul Ac Pol tech 7 no.11:651-654 159. (XIAI 9:6) (Electron beams) (Laminar flow) SZULKIN,P. Approximation of arbitrary characteristics of band amplitudes. Bul Ac Pol tech 7 no.12:679-688 '59. (EMAI 9:6) Oglectric circuits) (Approximate computation) (Series) (Radio) NAM Szulkin P. TITLE: POL/19-8-1-7/14 Graphical Method of Calculating the Earth's-Surface Reflection Coefficient%V PERIODICAL: Archiwum-Elektrotechniki,.1959, Vol,8, Nr.1, pp 97-102 (Poland) ABSTRACT: The calculation.of-the co;aplex-coefficient..of.electro- mag netic-wave-.reflectiou is usually.very-cumbersome. This-is.particularly 'Crue if-the..dielectric-constant and.the conductibility-of-the-reflecting.medium change -with the frequency-This should be-taken into.'account in the case of-ultra.short-waves for example-The art- icle shows, on the basis of certain approximations,*a graphical.method.enabliug--the.proE.ipt-,aud-qdequate deter- mination of the.reflection-coefficent for-the-incident wave with a vertical as well-as.a horizontal pol ) ariza- tion. There Ewe 4 diagrams. SUBMITTED: May 10, 1958 Card 1/1 67167 The Goubau Surface Wave Theory POLI/19-8-2-6/14 tropic properties. At the same time it is assumed that there are no losses in the electromagnetic field. These can be taken into account only in calculating the efficiency of transferring energy through the surface wave along its own peculiar line of trans- mission, The admissibility of such an interpreta- tion is unquestioned where losses are only small. Since, as has been established, losses accompanying the propagation of the surface wave are very small, the above assumptions can be accepted without reserv- ation. The Goubau wave has its own axial symmetry. Practically speaking, the radial range of the field is finite and during undisturbed propagation there are no power losses due to radiation. These charac- teristics are very valuable from the point of view of practical application. From these considerations, starting with Maxwell's equation and introducing Bessel's Hankells and Neumann's function, the author deri-,res the equation -it Card 2/3 6 7 16 7 The Goubau Surface Wave Theory POL./19-8-2-6/14 where ~- and E, = the external and internal dielec- tric constantsi a = the external radius of the internal Y dielectric film;O. the radius of the conductor; wh and erer = the phase constan*V'- and KO From there the author derives an expression for the section of power flow and losses, where-, i tangent of dielectric losses. This ex- pression gives the damping per anit of length of the line, caused by losses in the internal dielectric surface. There are 1 graph and 3 references, 1 of which is English and 2 German. SUBMITTED: February 4, 1959 Card 3/3 6(0)9 9(0) POL/19-8-3-1/10 AUTHOR: Szulkii,_P_ TITLE: Electromagnetic Wave Propagation along the Slot in a Cylindrical Surface PERIODICAL: Archiwum. elektrotechniki, 1959, 'Vol 8,, Nr 3, pp 355- 367 (Poland) ABSTRACT: The slot antenna which is considered in this article is made up of a long slot cut in a cylindrical sur- face and activated to make a wave run along its length. In practice this may be achieved with a wave conductor incorporating an axial slot open towards the side restricted by the cylindrical surface (Fig 1). It is assumed that the slot and the cylinder are of infinite length, that the walls are perfect con- ductors and that the dielectric environment is every- where homogeneous and involves no losses. It is fur- ther assumed that the wave conductor and the exter- nal cylinder are the surfaces of coordinat-et-of two systems of ortogonal, generalized cylinder coordinates Card 1/4 of which one relates to the internal area and the POL/I 9-8-3-1 /10 Electromagnetic Wave Propagation along the Slot in a Cylindrical Surface other to the external area. Prom there, the author considers any given field, which he takes to be the sum of the electrically transverse field and the magnetically transverse fi-eld. Substituting Hertz vectors, the author reaches the conclusion that any such field corresponds physicall- to propagation on- .7 1y in the direction of the axis with the spepd of light (with k=0), the field being, electromagnetically transversal. Hence the conclusion that the electri- cally transversal. (TE) and magnetically transversal (TIO fields each separately fulfil "edge" conditions and are therefore mutually indopondont- Prom het,,ft the author proceeds to derive formulae for the fields TE and TM, introducing the correoponding Green func- tions. The proposed variational method consists of solving the problem of scalar potential from the li- near source in the internal and external areas, which Card 2/4 fulfils the imposed "edge" conditions on the walls - POL/19-8-3-1/10 Electromagnetic Wave Propagation along the Slot in a Cylindrical Surface of the wave conductor and the cylinder. The derived formulae are as follows: CIO in the case of TEXEi 14 M(K p Md Op in the case of T (-1711)jz where E and H are the electric and magnetic fields, Card 3/4 V and zthe axial and ortogonal coordinates respec- POL/19-8-3-1/10 Electromagnetic Wave Propagation along the Slot in a Cylindrical Surface tively, the other non-functional terms not being de- fined in the text. To determine the constant of pro- pagation, the -variational method makes it possible to obtain an arbitrary ac(-;uracy, even when only the approximate field distribution in the slot is known. There are 4 diagrams and 3 references, 1 of which is Soviet and 2 English. SUBMITTED: April 30, 1959 Card 4/4 Ejot-i --l-n-v s.!--; c~ f-I F7*'-;-r--'j"",l" 7-,. 7:-,st -'r-cess-ons 'T no. 1-c. !"Ol. SZULKIN, Pawel ---------- The impulse transient function of time-varying linear systems. Archiw automat 5 no-1135-43 160. (imi 9:6) 1. Polske, Akademia Nauk. (Transients (31ectricity))(Fanctions) (Integrals) P/031/60/005/003/002/004 _5-6? 0 A224/026 AUTHOR, Szulkln, Pawel ---------- TITLE: The Stability Analysis of a Control System Including an Amplifier With a Loop Characteristic PERIODICAL: Archiwum Automatyki I Telemechaniki, 1960, Vol. 5, No. 3, PP. 303-311 TEXT: The author analyzes an automatic control system including a nonlinear amplifier with a loop characteristic. The amplifier gain depends both on the sign of the input signall as well as on the sign of its time derivative. The ana- lysis is conducted with the use of the describing function. The results are re- presented in 12 figures. The author concludes that the introduction of the non- linear amplifier with a loop characteristic may have stabilizing properties in some cases, and may Improve the properties of some linear systems. This amplifier acts as a phase shifter with a constant angular lead for all frequencies. The amplifier disadvantage is the restriction of its phase lead by the value T 1.ax being equal to 320301. There are 13 figures and 2 Polish references. ASSOCIATION. Polska Akademia Nauk (Polish Academy of Sciences) SIMMITTED-., October 1, 1951 Card 1/1 .--- SZULKIN,.-E-,-- Relation between the implse response of the parametric system and the theory of differential equations. Bul Az Pol t-jch 8 no.1:15-21- 2 6o. (EEAI 9:7) (Electric networks) (Differential equations) SZULKIN, P. The electromagnetic field in an infinite plane horn. Bul Ac Pol. tech 8 no.1:23-28 160. (EEAI 9:7) (Electromagnetic fields) (Wave guides) SZUAN, P - on energetic criteria of amplitude stability of oscillations. Bul Ac Pol tech 8 no.2a83-91 160. (MAI 9:7) (Oscillatorsp Electric) - SZULKIN, 1). On the mean-square error spectrum. Bul Ac Pol. tech 8 no-3:145-157 g6o. (EEAI 9:11) (Spectrum analy--is) . - -SZULhIN.,--P-. On forced vibrations in a nonlinear system with many degrees of freedom. Bul Ac Pol tech 8 n0.5:225-232 160. (EEAI 9:10) (Vibration) SZULKIN The effect of soil upon the impedence of an antenna. &a Ac Pol tech 8 no.5:233-240 160. (EW 9:10) (Impedance (Electricity)) (Soils) (Electromagnetic waves) -- --- - -- -- --- ---- CPRZYNSKI, B. Comparative analysis of approximate methods in the vibration theory. Bul Ac Pol tech 8 no-7:361-370 ,6o. (EEAI 10:3) 1. Communication Theory Department, Institute of Basic Technical Problems, Polish Academy of Sciences. ?resented by P.Szulkin. (ViLration) SZULKIN, P. Analysis of a rectangular rerronator in a wave guide. Bul Ac Pol Tech 8 no.8:437-"9 160. (EEAI 10:6) (Wave guides) (Resonators) SZULKIN, P. On a system of two arbitrarily coupled dipoles, excited vith a plane wave. In French. Bul Ac Pol tech 8 no-9:509-514 160. (Dipole antennas) (Waves) OMAI 10:7) SZULKIN The variational-principle in the theory of the cylindrical antenna. Bul Ac Poll~ecl~'8 n6-.'1-O.-579-585 160. SZULKIN P. On the integral equation of diffraction. Bul Ac Pol Tech 8 no.10: I- 587 593 160. I. SZULKIN, P, On the interference of pulse signals with reflection fom a plane. Bul Ac Pol Tech 8 no.11/12-.629-637 160, S/19Y 62/000/002/066/096 D290,D301 AUTHOR: Szulkin, F. TITLE: On the theory of the open resonator P_".')1ODICAL: Refe--ativnyy zhurnal, Avtomatika i radioelektronika, no. 2, 1962, 24, abstract 2Zh165 (Bull. Acad. polon. sci. Se'r. sci. techn., 1960, 8, no. 11-12, 639-0645) TEXT: Tile author studies qualititatively the resonator that is formed by two parallel perfectly-conducting discs; he expresses the elec-uromar-netic field between the parallel planes in a system of cylindrical coordinates. He introduces a radial impedance that has a certain value at the edge of the resonator. The-field is divided into oscillatory and radiated parts; a Bessel function represents the oscillatory electric and magnetic fields, while a Hankel func- tion represents the radiated fields. It is assuned that the radial components of the electric and magnetic fields vanish at the edge of the resonator; therefore, a rough approximation for the radial wave number of this mode is given by the E-mode of the corresponding hollow resonator. /lbstracter's note: Complete translation.-7 Card 1/1 17,1,900 AUTHOR: TITLE: 33578 S/19 61/000/012/088/097 D27 I YD301 Szulkin, P. Synthesis of characteristics of linear antenna systems PERIODICAL: Referativnyy zhurnal~ Avtomatika i radioelektronika no. 12, 1961, 40-41, abstract 121229 (Praoe Przemys-ka inst. telekomun-6, 1960, v. 10, no. 30, 15-30) TEXT: Synthesis of antenna systems does not lead to a single-va- lued solution of the problem. This means that for a given system there are many possibilities of element excitation, all of which produce identical a space effect. Using a polynomial representa- tion of the function, a fundamental theory of linear ayatems can be derived; its general lines are given in 10 theorems. This ap- proach does not, however, lead to a simple and direct method for the synthesis of characteristics. On the other hand, the method of analogues makes it possible to obtain readily, by using consecu- tive approximations, the location of roots in the complex plane which are needed for the required characteristic. By traneforming Card 1/ 3 33578 S/194//61/000/012/088/097 Synthesis of characteriEtics ... D271/1)301 well. Two other methods for the synthesis are considered in the conclusion; these do not require any supplementary assumptions re- garding phase characteristics of the space factor. The practical. value of these methods is limited because of computing difficulties. 9 references. /-Abstractor's note: Complete translation._7 Card 3/3 SZULKIN, Pawelt prof. -- ----- Polish-Smiet, scientific cooperation. Przegl techn 81 no.19: 27-28 160. 1. Zastepca sekretarza naukowego Polskiej Akademii Vauk. 14 0 .4 96 ke tot, 0. gal AtA-Im 8 4 0 , 'A, ON kil A Ai , !so II - .4 OT 115 OA I A *0 4 A ad . 'S . .5 ol all ~x 32207 P/031/61/006/004/001/010 D242/D301 V60 //7.2 AUTHOR: Szulkinj Pawel, and KacprzyAskip Bogdan TITLE: Application of delay lines as equalizers in control systems PERIODICAL: Archiwum automatyki i telemechaniki, v, 6, no. 4, 1961. 371-388 TEXT: The authors investigate the possibility of applying delay lines as a correcting element for distortions in control systems, cliscussing polynomial, harmonic and dynamic classes of equalizers. The three classes are very similar and consist of a delay line with an approximate number of tappings and amplifiers and a summing elemcnit. A polynomial equalizer is defined by i=n 0 = KO + K, e -T1s + K e-T 28 + 9.o + K e -T ns K e-T is k(s) 2 n i=O Card 1/2 32207 P/O-,i 61/006/004/001/010 Application of delay... D242YI)301 and a figure, and the effects of an equalizer on the response charaateris~ tics; it is illustrated by a numerical example. A harmonic equalizer is very similar to the polynomial. The parameters of both systems differ only by a few percent. Harmonic equalizers are much simpler to calculate since they are based on harmonic functions and form a convenient startiW, point fo r calculating polynomial equalizers. Since parameters differ by only a small margin, it is possible to use harmonic equalizers for more ambitious schames offarad by polynomial equalizers. For the best approxi- mations of functions, the delay time should be short rdth a great number of tappings. However, generally, the shorter the delay time, the ,Iu-eater the am-olif ication necessary. The dynamic equalizer is also similar to the -nolynomial, but a new condition is added. The transient response tiine is to be less than the delay time of a complete line. There are 14 figure.-S and 3 references: 2 Soviet-bloc and 1 non-Soviet-bloc. The reference to the English-language publication reads as follows: Yu-Chi-ffo, ME Conven- tion Theory, Part 4, 24-26 (1955)- SUBMITTED: November 16, 1a60 Card 2/2 ~)ALJC EURNAME, Given Names Country: POLMID Academic Degrees: not given/ Affiliations not given/ Sourcel Warsaw, Rozprar EIektr2tegDD;gMq_t Vol Me NO Zi 1961, pp 1?9.244 Datal " APProximation Proolems in the UeoZ7 of Low-pass RC Filters" "Authors: SZULKIN, Pawel C - - -- --) N&R~-K, Czeslaw erg 9016%) 3/11 94'/-52/_COO/006/153/'23)2 D201/D308 AUTHOR. Szulkin, Pawel TITLE; Variational method of design of discontinuities of a coaxial cable V_~:H~ 10 DIC L: Referativnyir ihurnal. -Avtomatika i radioelektronika, no. 06, 1962, abstract 6Zh136, 20 (Rozpr. elektrotlekhn. 19o1, 7, no. 3, 365-379) 'T:,.e aell-known variational metKod (L. Levin, Sovremennaya teoriya volnovodov (AM.odern '17aveguide Theory) Izd-vo in. lit., 1954) is applied to the desi-n of plane discontinuities in a coaxial I? V_ 4. uransmission line. Having carzied out calculations typical for the above method the author obtains an exp.-ession for conductivity. in the Darticular case of a stepped change in the diameier of the co- axial line in which only a wave of TEN., type propagates, the calcula- tions are carried out to -uhe end. It is shown tfiat in zero approxi- T ii U qation such dis.,jon'inuities are well represented by a capacitance shunting the line. Otring to its stationary properties the zero. apDroximation is sufficiently accurat'e. [Abstracter's note: Oom-ole,- Card 1/2 S11 94/062/000/006/153/232 Variational method of design of ... D201/D308 te translation.] "/ I Card 2/2 --SZULKIN, Fawel outlook for the development of a young scientific team. Vauka Pol 9 no./+:31-45 O-D 161. 1. Czlonek rzeezywipty Polskiej Akademii NB:uk, czlonek Komi- tatu Redakoyjnego czasopisma "Nauka Polska". 40309 S/194/62/000/006/058/232' 16, D2957~308 AUTHOR: S zulk TITLE: The mean-square error [spectrumj as an optimization criterion PERIODIC.AL: Referativnyy zhurnal. Avtomatika i radioelektronika,. no. 6Y 1962, abstract 6-2-136 a (Bull. Acad. polon. sci., Ser. sci. techn., 91 no. 7p 1961, 441-4416) TEXT: It is pointed out that the mean-square error can be conside- red as a system-performance indext optimum system characteristics being attained for a minimum value of the mean-square error. The analysis is carried out for the case when each frequency component of the spectrum is minimized. This leads to the o-Dtimum transfer function being determined by the input-signal spectrum and the noise snectrum. The system with such optimum. transfer function is a system ~Laving the smallest value of th; mean-square error for all possible input-signal spectra. 4 references. [Abstracter's note: Complet6 translation.] Card 1/1 30566 P/019/61/010/UO1/001/006 q, /3 0 6 D223/D305 AUTHOR: Szulk.in, P. TITLE; Analysis of sharp discontinuities in waveguides by the method of infinite matrices PERIODICAL: Archiwum elektrotechnikil v. 10, no. it 1961, 39 - 55 TEXT: The case of waveguide constriction is examined and EM fields on both sides of the discontinuity are expressed by an in- finite number of modesp propagated in two directions. For each mo- de and direction there existo a coefficient which expresses the re- lative mode amplitude. Since the field components at discontinui- ties must be matches on the metal wall, the components Ext B Y 9 Hz are equal to zero. These conditions lead to equations in variables x and y which may be eliminated by the method of the Fourier se- ries. The infinite system of linear equations giving the mode coef- ficient is then transformed into a matrix equation with infinite column matrices. The answer is obtained by solving this matrix equa- tion for the mode coefficient columns with consideration of all Card 1/8 '05-66 P/019/61 010/001/001/006 Analysis of sharp discordnuities ... D223/D305 boundary conditions. The method of interlacing is explained in the appendix. Interlacing allows one to represent the mode coefficient as a matrix. Table D-I shows an infinite square matrix when each element is defined by one suffix instead of two, thus element TF 12, 1 is replaced by TE V a7 = a 2,1' However, since modes TE 01 0 and TM OP 0 do not exist, the first element of the infinite series has suffix i. 1he two matrix equations D-13 and D-14 [uj = LAJLxj+[BI[yj, (D-13) Lvj = LCJ[xJ+L')JLYJ, (D-14) where LuJP Lvj, Lxj and Lyj are column matrices may be reduced to one equation by interlacing. Let column matrices V and Z may be I de- fined by W,.-, =u. (m- 1-2,3 (D-151 W2.'=Z:.' (D-16) and Z 2m-1 = xm and Z 2m = YM (m = 1, 2, 3 ... ); also let matrix LEJ Card 2/8 30-566 P/019/61/ol(j/ool/001/006 Analysis of sharp discontinuities D223/D305 be defined by (D-17) 13. (D-18) (D-19) (D-20) Then LW (D-21 where [E] [AJ[Bj- (D-22) ILCJ[DJI The initial equation of ~x for a waveguide with a sharp discontin- uity on both sides of it are represented by Exi nrc a,,,, n- e- + bm,ne+y-,,- DZI ( b m.n-0 Vm, n mn mIn e Cos sin Cm,n e- d Card 3/8 X a (nb P/U-19/ 0/001/001/006 Analysis of sharp discontinuities D223/D305 kp, 9 b, [a, PIq PA-0 qn(y-d) cos[P-11~x--C) sin (2) a' a' b- M (3) )2 + k2 a- b P, a' V 2 1 2 (4) YM, n67n,~ ~W2.U 6Y~.n=T/kPm-0) P6 where all quantities have the usual meaning and aik, bik' Oik a:nd di, are mode coefficients of TE and TM nomponents in the.positive and negative direction of z. Similar equations may be written for other field comDonents on both Bides of the discontinuity. The boundary conditions (z = 0, Ex = By = Hz = 0) lead to a set of 4 equations, in which the field components E z, Hx and H Ydo not Card 4/8 30566 P/019/61/010/001/001/006 Analysis of 8harp discontinuity ... D223/D305 appear. By applying Fourier's method the space coordinates x and y are eliminated. Finallyt the equations are representsd in the form [aj+[b1=[GJ [[a'1+(b'1J (50) [cj + [d) = (H] [[d] + (01 -4- [K] [(el + 101 (51) [a] - (b] = [M] [(a] - [b]] + [NJ 1[c] -- [d)] (52) fc] - [d'] = (P] J(c) Idl] (53) where [aj, Lbjj Lcj, LdJi Lalj[,~bl~~,,cj,,and Ldl] are infinite column matrices and LGjt [Hjr f t N and LFJ are infinite square matrices. By applying interlacing method the following pairs are combinedt a-c into a# b-d into pp a'-cl into and bl-d' into y. Assuming [G] . M ILHJ LXJI 07 (60) MI In) L (vi oj IF31 It (61) Card 5/8 ?Yj"06i69/'61/ 010/001/001/00 6 Analysis of sharp discontinuities D223/D305 Lal + 101 = A?/ /k] + Lid/ (02) y j = /V/ /[aJ + [0j/ (63) are obtained in place of Eqa. (50) - (53). The last two equations give the boundary conditions at the discontinuity. Additional boun- dary conditions may be introduced. Assuming that the waveguide is fed from side I and side II is loaded one may eliminate (y) and solve for ', and P by a. Calling V and V the inciden-%-. and reflec- Ic 1 2 ted voltages Z k - normalized impedance, Eq. V 1 - Zk (69) 2 1 + Zk V, is obtained which is similar to the equation for the P solution. It allows one to generalize the definition of normalized'impedance and to designate a matrix (Z) = (W)(U)(V) the normalized impedance matrix for a waveguide with sharp discontinuity. For this reason, the equivalent circuit may be given composed of an ideal transfor- mer with constant impedance in aeries with an impedance represen- Card 6/8 30566 210191611010100110011006 Analysis of sharp discontinuities ... D223/D305 ting the load in part II of the waveguide. The equations obtained are precise and evaluation of the influence of discontinuity may be done with any degree of accuracy. The formulae are rather com- plicated and in practice it is worth discussing the approximation problem. The method can also be applied to the case of a wave gui- de with a discontinuity produced by a distention. The case when the discontinuity is not at Z = 0, but at Z =: c; is also considered. The author indicates that this method may be applied in other types of problems involving discontinuities. The work has two appendice:e giving (i) the general theory of infinite matrices with interlacing methods explained and (ii) the derivation of the initial equation for the MI field. There are 3 figures, 1 table and 5 references: 3 Soviet-bloc and 2 non-Soviet-bloc. The references to the English- language publications read as follows: N. Marcuvitz, Waveguide handbook. Rad. Lab. Ser. Vol. 10, Nr- 4, 1951; Schelkunoff, Elek- tromagnetic waves Nr- 4, 1947. SUB11ITTED: May 28t 1960 Card 7/8 Analysis of sharp discontinuities ... 30 6 P/019/61 010/001/001/006 D223/D305 Table D 1. 0 2 S 9 14 2027 1 4 a13 19 26 34 21 3 7 12 is 2S 33 42 3 611 11 24 32 41 4 "is 23 31 40 I,22 30 39 21 29 "1 28 11 8 36 35 43 Card 8/8 24942 P/019,/61/010/002/001/009 D253/D303 AUTHOR: Szulkin, P. TITLE: The general solution of the problem of a radiating slot in a cylinder with an arbitrary cross-section PERIODICAL: Archiwum elektrotechniki, v. 10, no. 2, 1961, 297-308 TEXT: The author considers certain basic aspects of the theory of slot antennae. Let an infinitely and perfectly conducting cyl- inder (Fig. 1) have a cross section in the plane x-y by the curve (Y (Fig. 2) which is closed and has a continuous curvature. It is assumed that there is such a whole number m > o that an arbitr- ary straight line, parallel to the x-axis or y-axis intersects the curve Or at m points at the most. A slot of constant width is cut out in the cylinder as shown. The slot is excited in such a manner that the vector of electric field is independent of Z, parallel to the plane (x,y) and tangent to the projection of the cylinder in- side the slot. Finally, it is assumed that there are no energy Card 1A 24942 P/019/61/010/002/001/009 The general solution... D2-53/D303 sources in the space around the cylinder. Under the above assump- tion the problem to be analyzed reduces to determining the electro- magnetic field satisfying the Maxwell equations in the external to the cylinder space, with given boundary conditions at the cylinder surface and in addition the condition of radiating at infinity. The expression for the vector E becomes under these conditions E - _i r .1 21Hz (7) Lj C (l r a T At the same time H2 must satisfy the scalar equation 2 2 V2Hz + k2Hz = 0 (8) where k . ti A E. It is known that a field tangent to a three- dimensional surface defines uniquely an electromagnetic field. It is shown that this theorem is valid also for a-two-dimensional prob- lem and it follows that the problem of boundary conditions has a unique solution. This is done by assuming certain conditions for function w and that there exist two different funztions v = wi - w2 (16) and v* = w* - w* (17) where the asterisk denotes a conjugate 1 2 CD C ard 2/4 _uu_anY_PG1nt _6i1t9'1_d7e_fhe plane Finally it is shown that the so 0' and the solUtibn is thus unique.- obtaining lution'exists, the author.finally w (P) f ZW Tn do- flid a s which permits a direct solution of the problem of a radiating slot if the solution of the corresponding diffraction problem IS known. For the majority*of cross-sections the solution pf problem could be no less difficult than that of a s the diffraction Nevertheless, the analysis of diffraction of a plan lot -antenna. corresponds to the shifting 6f P to infinity, e wave, which uatiQn of the radiation, characteristic'.of a di -]Leads to direct eval.- the'need for evaluating' stant field without the near field'which in som6 cases may,~X! an.advantage. There are 7 figures and 4 references: 1 Soviet-bloc Card 3/4 24942 P/019/61/01.0/002/001/0091" The general solution... D253/D303 and 3 non-Soviet-bloc. The references to the English-language puh- ke, F. Emde, Tables of functious, lications read as follows: E. Jahm DovIer, N.Y. 1945; j.A. Stratton,.Electromagnetic theory, N.Y.. 1941. SUBMIWED: July 27, 19M rd f Card 4/4 Fig. I Fig. 2 Fig. 3 ZO: 24943 P/OL9/6L/OLO/002/002/009 10 _6 D253/D303 AUTHOR: Szulkin, P. TITLE: The susceptance of a circular diaphragm in a circu- lar wave-guide operating in the TEo, mode PERIODICAL: Archiwum elektrotechniki, v. 10, no. 2, 1961, 309-321 TEXT: The author considers a circular wave-guide operating in the TE01 mode and containing a symmetrical diaphragm, whose thickness is assumed to be infinitesimally small and its conductivity infinite (Fig. L). The diaphragm is, therefore, flat and has a circular symmetry. In these conditions, the higher attenuated modes induced by the discontinuity, can be only the circular electric modes of higher orders and the energy stored will be only magnetic. The diaphragm can thus be represented as a shunt inductance in the anal- ysis of the equivalent transmission Line. The problem is analyzed in two formulations. Variational with upper limitation. Using the tangential magnetic field at the diaphragm the expression for a Card 1/13 24943 P/019/61/010/002/002/009 The susceptance of a circular... D253/D303 susceptance being the lower limit of real quantity can be derived. The weighting function is taken as having two terms; one is the un- distorted current distribution at a diaphragm without the aperture and the second is a correction term. 'The normalized susceptance which can be used as the upper limit of real values for a circular diaphragm is obtained by means of a tangential electric field in the diaphragm aperture. In this case, two weighting functions are being used. One of them is the sum of the electric field in the aperture when its radius tends to the radius of the waveguide and of.a corrective term. The second weighting, function has two terms representing the electric field in the aperture. To simplify the problem it is assumed that the diaphragm can be represented as an equivalent lumped parame%er in a transmission line. Assuming har- monic time dependence (eJI'7t) the components of the fields in circu- lar modes can be expressed as Er 0 i1 (r e n~ E (P Vn (z) = ell (r) V11 (Z) a -ViR Jo(en) Card 2/8 24943 P/019/61/010/002/002/009 The susceptance of a circular... D253/ '303 Ez 0, Hr a 1/1-Do (en) In(z) = hn(r)ln(z), H? 0, a en Hz o enJo ( Vn(z), ka2 J,(en) where en(r) -h,(r) (Ka' ' n) a RJ. (en) It a - the wave-guide radius, k is the wave, en - nth root of Ji(x) = 0; '70 =-F.60- the admittance of free space. For 0 Card 3/8 24943 P/019/61/010/002/002/009 The susceptance of a circular... D253/D303 propagation modes the characteristic admittance Ycn and ch-~xacter- istic impedance Zcn are real (1,2 Vk2 _ en Ycn = I Nl~y (3) Zcn 0 For attenuated modes both are im%Lnary and equal 1 -111n) 2 _k2 Ycn = Zcn -a (4) (j a 0 The problem can be formulated by using the tangential electric field in the aperture or magnetic tangential field at the diaphragm surface. It follows from Eq. (1),,that these values are given by Et = ET (r,z) E, en(r)Vn(z). (7) n-1 00 Rt - Hr(r,z) hn(r)ln(z). Card 4/8 n-1 200 J?/019~61/010/002/002/009 The susceptance of a circular... D253/ ~303 From orthogonality condition and applying the bou-vtdary condition - 0 that the transverse magnetic field vanishes in the aperture' CIO 0-0 Ilhl(r) YcnVuhn(r) Ycnhn(r) (f(r1)hn(r1)da', (10) n=2- nF-~ SE Cr is obtained where a, is the a-f)erture area and changing the summing sequence and integration limits. It is assumed that the current at the diaphragm could ble expressed by two terms, the first corres-.w ponding to current when the apertLlre tends to vanish, the second being a corrective term. The weighting field is taken as given by the two first terms of a Bessel series- ,H Jl(la:'e AJj r a (16 r (r) (1: C2) ro '< a VO where constant A has to be determined. The variational for thd diaphragm is written as C are'.. 5/8 The susceptaucc of a circular... 24943 P/019J61/010/002/00~/009 D253/.D303 a ( I r r +AJ, J ( I ( dr I 2 f a , a- a- Ba Ycn;u a - r r " 17) J, if - e" j . ) I - 01 :4-Aj, ( ( Q92) j rdr] a a a n-2 63 -(ka)? Finally en.3ression (r) Jl H (!a: 1 bl - bo. + J, 2) 0 bl - b2 T2 a is obtained. For vari --tional analysis vrith an upper limitj t-w 0.. weighting C, functions are used .- The first is the undistorted electrilc~. field in the aperture and a corrective factor. Such a field can beA exnpressed by E 55 Etp(r) 0 r-- ( + DJl e2) r 0