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Blakhp E. L. and Plantonov,, G. Ye. aM Prokopenko, N. Ye. - "The effect of streptomycin on c6llular reaction in tubercular infeetiona"m wuay Akad. med. nauk SSSR, Vol. II, 1949, P. 3542. SO- U-43291. 19 August 53j. (Letopis IZhurnal IzWkh Statey.. No. 21,, 1949). PUTONOTO G.Te., professor; PROKOPZNKO, N.Ye.; BLOKH, E.L. Pbrsiological principles of surgO17 of"t'he nervous s7stem in tuberculosis. Proble tube no-3:5&-63 MY-Je 154. (MM 7:11) 1'. Is Institute, tuberku lesa, Akademii meditstuskikh ftauk SSSR (Ur. Z.A.Lebodeva) (TUMMOM.OSIS.-PULMONARY. experimental. off. of.vagotlozy) (MVISO VAGUS, surgern off. on expers Pulao.tubero.) of determining the velocity distriDution in the AN,t.,.,d at the mum-ent of-impact to agi -exiesior Neumanfi problem for the impOsivq ~pnfswure-j-he-solution.of this p, n is given expricittv as an absoluteiv and uniformly conwrzt-- ctf aFs-,xciated Le-ggendn- hirc--- ;,!~! ~rdf.,r 1w the sarne methcc the a--,tho, N-eb-it". distributior :F a '1434. Blvkb, 9. L, li-gsimW impatt of = -tWpwAd rd pDta~ tion xga~dd~ftld with an ami~g ft" vurface (in RUL, si&n,l 116 pr~aq Afal -w -A, 17, 6. - - "- qv puch Oat the nL-,, vv- t.1) An ellipm-d Gf rOL-bon h&V im-nmergf-d in an ideAl liquid 17 ~ n - USSR/Electronics - Information Theory FD-2928 Card 1/1 Pub. 41-9/17 Author Blokh, E. L. and Kharkevich, A. A., Moscow- Title Geometric presentations in the theory of communications Periodical Izv- AN SSSR, Otd. Tekh. Nauk 6, 91-100, June 1955 Abstract Describes how and where geometric theory can be applied to the study and the science of commmicationa. Discusses the inci- dental vectort themessage and the signal, the signal and inter- ference, interference rejection, transmission capacity, maximum transmission capacity, method of storage and the separation of signals. Diagrams, formulae. Seven references, 4 USSR. Institution Submitted April 14, 1955 USSR/Meebanice - Hydromechanics Card 1/1 Pub,85-12/19 Author : Blokh., E. L. am" ~Mav WNWM. a WVM Title ; Influence of depth of submersion ofa sphere on the coefficient of combined mom during a horliontal shock Periodical : Prikl. Mat. I Mekh"P.19P 353-358o'Nay-June 1955 Abstract : The author susnarlses known facts about the coefficient of combined mass of a submerged sphere. In an effort to determine the Influence of depth oi t&m' coefficient be considers the problem of ~a sphere insersed'in an ideal liqui4 at a depth greater than its radius. Re derives an.expression for the*coefficient of combined mass and cal- cplates values from first and second.approximetions. TM author finds that the coefflelent varies frob 0.418 to ;0.5, the :' t la tar value applying at infinite depthe Institution: Submitted : November 23s, 1954 4 USSR/Kl;ctro0cs.- information Theory FD-2669 Card 1/1 Pub.90-1/12 Author Blokh,,E. L. and Darkevich, A. A. Title Geometric theory of the threshold of transmission capacity of a communications system -.,Periodical Radiotekhnika., 10, 3-7, Jul 55 Abstract The limiting factors of sigma transmission in a co=unicatigns system are evaluated on the bP-SiB of the geometric theory. The limiting transmission capacity of a system is defined as the greatest awvnt of inteUigance that can be conveyed to the re- ceiving end of the line, maintaining the lowest desired prob- ability of error. The transmission capacity approaches zero as the level of noise approaches that of the signal. Reliable re- ception for mall increments of signal over noise require the use of special methods of reception, such as storage and correla- tion methods. Graphs. Two references; one USSR. Institution Submitted January 32, 1955 OSSR/ftectronics Communication Theory FD 1933 Card 1/1 Pub 90-2/9 Author Kharkevich, A. A., and Blokh, E. L. T7 Title -Limiting capacity of a commmication system PeAodical Radiotekhnika 10, 14-20, Feb 1955 Abstract The derivation of an expression based'on geometrical relationships for determining the limiting capacity of a communication system is given. The older, vell-known Shannon foramla generally used for these calcu- lations holds.true only when the signal-to-noise ratio approaches infinity. Institution: Submitted December 15, 1954 BLOMI, I.L.;KURMIGH,' A.A. Rep3,v to L.M.Finkle remarb6 Radiotekhnika 10 no.100.75 0 155. (Telecommunication) . .(mm 9:1) I K ti, SUBJECT USSR / PHYSICS CARD 1 3 PA 1705 AUTHOR BLOH,E.L., HAM-VIC,A.A. TITLE on the Question of the Geometric Proof of SHANNON'S Theorem. PERIODICAL Radioteohnika, 11 fasc. 11, 5-16 (1956) Issued: 12 / 19 In the course of previous works (Hadioteohnika, fasc.2 and 7, 1955) the authors endeavored to prove the theorem on the penetrabilitj limit geometri- cally. According to SHANNON this theorem is: C - F log + Pn 2 Pri P here denotes the average power,of the transmitter I P Ti -the power of the perturbation in the stripe F, C - velocity. In the present work the theorem is presented in SHANNON'S form-and also geometric proof of the second state- me4t made in this theorem. It was-found that SHANNON failed to take the follow- ing into account: Even in the case of the densest arrangement the coefficient of the filling up of the space by non-intersecting spheres is diminished if n = 2FT (T - time, n - dimension) increases, and at n --;~ oo it tends towards zero. The authors corrected this error committed by SH ANN ON and obtained an exITession which deviates from'that of SHANNON: C ~* F 11og (l + P The difference between the two formulae is very essential in the case of com- parable P and P , namely just in the case of such conditions as are of par- ticular interesp in modern radiotechnology. On the other hand, SWNONIS formula has been generally accepted. This contradiction could be explained by Radiotechnika, 11, faso.11, 5-16 (1956) CARD 2 / 3 PA - 1705 two assumptions: 1. The limit-of penetrability cannot be attained by means of a receiver that is ideal in KOTELJNIKOVIS sense. 2. An error was committed in setting the_,Feometric problem to be solved itself. Further investigation showed tL-M'f the statements made by SHANNON contain a further error: the con- dition that spherical spaces of indetermination do not intersect. I'a their previous works the authors adhered to-this condition from which they concluded that SHANNON'S formula is wrong. 'What is true is only that the formula cannot be obtained on the basis of geometrical assumptions made by Shannon himself. It is shown that the task is confined to investigating the probability of the error on the condition that.the spheres partly intersect. On the basis of a simple example the authors show that, spoken generally, it is possible to ob- tain any small probability ofthe error also if the spherical spaces of inde- termination intersect, but nevertheless no conclusions can be drawn with re- spect to relations for the case of partial intersection, for here the densest arrangement is concerned, the geometry of which is not known. Therefore, only an approximation method can be applied. By doing so, the authors eventually obtain the expression: -~ < log (1 + L_ ). The right part of this expression F Pn ,is the penetrability limit according to SHANNON. Unfortunately, the authors cannot carry out proof to the end and are unable to replace the sign of in- equality. It would suffice were it possible to prove that the assumption on the basis of which the authors obtained this expression is asymptotic. The Radiotechnika, j1j faso. 11, 5-16 (1956) CARD 3 / 3 PA - 1705 authors regret not being in possession of this proof. It would be of im- portance because then not only WONOWS theorem could have been proved geometrically, but it would have been possible to show whether the limit of penetrability can be reali-zed by means of a receiver that is ideal in KOTELJNIKOVIS sense, INSTITUTION: tl SMECT USSR/MAT M ATICS/Geometry CARD 1/2 PG - 762 AUTHOR BLOCH E,L* TITILE On the most dense distribution of the spherical segments on a hyperephere.. Vei '2 (1956) PERIODICAL Iz tija AJead,,Na 01- 707--712 reviewed 5/1957 The surface of an n-dimensional unit sphere is covered with spherical segments theopening angle-o.f.whioh is 20, For the coefficient Xn(Q) t7. 1 (where S'(0) is thei surface of.the,segment with the opening angle 20, is n the number of segments and3the surface of the unit sphere) an upper n0r) estimate is givent 2 U-1 sin. If n(Q) xn(a) n-1 ,21 2 coo coo lf' + n+1 2 Here AUTHOR BLOKH E.L. TITLE 'On-tho--Retation Between the Veloolt~r of Transmitting Inform-ation and the Resi stance Against Disturbances of a Coupling System. (K voprosu o zavisimosti mezhdu Bkorostly-u peredaohi soobsheheniy i pomekhoustoyohivostlyu sistemy avyazi-Russiart) PERIODICAL Radiotekhnika, 1957, Vol 12, Nr 6, PP 3 - 14 (U.S.S.R.) ABSTRACT This relation for a coupling system for codes which correspond to the most simple and most dense signal- point distribution, is in- vestigated b.Y means of geometrical methods. The case is investigat- ed in which the oode is composed in such a way that"the ranges fora.., proper reception are equal for all aignals and the &isturbinoe shows spherical symmetry. Therefore the orientation in the space of the coordinates x ..... xn can be chosen at random~* An exact , city of the transmission of codes) and-the z determination of S(velo probability of a proptr reception is possible only in those cases in which the signals f are on the surface of-the sphere. This is for example the case i~ the signal points are situated at the ou-, bic summits of ah n-dimensional cube i.e. in the c as4 of a so-oal- led double -code. Equations are deduced by means of which thp re- lation required is determined owing to the simplified assumptions. - However, in order to find out the corresponding magni fu6es the co- efficient of charging the space with Q -sphere as well as the form of the range for the proper reception V. must be determined. Card 1/2 These two determine the situation of the points in the space I'm" On the Relation Between the Velocity of Transmitting Information and the Resistance Against Disturbances of a System. of the measurements i.e. in the space chosen by the code system. Here the determination of the magnitudes re%uired is carried out for the case of the most simple and the most dense charging of the m-dimensional space by means of points forming a~cubic lat- tioe. The relations obtained are then compared with each other for both cases~ (12 illustrations and 1 table and 2 Slavic references). ASSOCIATION Not Given. PRESENTED BY SUBMITTED 1-3-1957 AVAILABLE Library of Congress. Card 2/2 sov/lo6-59-1-10/12 AUTHOR: ,B.1okh, TITLE: The Transmission of a Non-Uniform Binary Sequence by Means of a Uniform Code (0 peredache neravnomernoy binarnoy posledovatellnosti ravnomernym kodom) PERIODICAL: Elektrosvyazl, 1959, Nr 15 PP 76-77 (USSR) ABSTRACT: It is shown that the sending speed of messages in non- uniform binary notation may be significantly -increased by a preliminary re-coding in terms of a homogeneous binary'codel,the length of which depends on the probability p in the first equation at the top left- hand side of page 76. The information per symbol m t~order code when the message is re-arranged is given by 1) and this is plotted in Fig 1 for m = 11 2, 3t 1+ and 5. For each value of m this expression goes through a maximum ata certain value of p. The position of the to p = 1 the greater the value Card 1/2 0f m. There seems to be no practical advantage in making m greater than 5, but for p very close to sov/lo6-59-1-10/12 The Transmission of a Non-Uniform Binary Sequence by means of a Uniform Code' unity (1) takes on the approximate form (2) and this is tabulated in Table 1 for values of m greater than 5 and for p very nearly 1, There are 1 figure and 1 table. SUBMITTED: July 11+, 1958 Card 2/2 Z kl~ Z-- -, FHAEM I BOOK EXPLOITATION SOV/4480 Akedemiya nauk SSSR. Laboratoriya sistOM peredachi *nformatsii Pro'blemy peredachi informats.ii., Vyp. 5:"Statisticheakoye kodirovani" (problem in the Tranomission'of. Information, No. 5: Statistical Coding) Moscow 1960. 125 pe 4,000 co 0 pies printed, Respo Edo. for tl4s volvme: R.L. Blokh (Rasp* Ed.).. and V.G. Solomoaov (Deputy Aesp. Ed.); Ed. of Publishing House: G*Yu. Shteynbok; Tech. Ed.: O.G. Ullyanova. PURPOSE: This book is intended for readers,interested in systems and methods of coding. COVERAGE: This collection of 14 articles on statistical coding vritten by staff mem- bers of the Laboratoriya sistem peredschi informataii Akademil. Itauk SSSR(Laboratory of Information Transmission Systems of the AcaAaW of Sclimces USSR). Thf- articles were presented as lectures and discussed at-the-enlarged-session of the Scien- tific Council of the Laboratory,, April 1�,and 17, 1959. No jersonalities am men- tioned. References accoupany 1) of the a~!ticles. Problems in the Transmission (cont.) sov/448o TABLE OF CONTE11TS: Blokh, E.L. Introduction 3 Garmash, V.A... W N.Ye, Kirillove on the Effectiveness of Coding by the Shan~on Method e 9 "'Blokh, E.L. On the Transmission of a Binary Sequence by a Uniform Code 12 kirmov,*o Statistical Coding of Camunications When Transm4ttiug in Weak Noise.Conditions 23 Lebedev, D.S. Statistical Matching While There axe Strong Interelement Probability Connections 32 Kirillov, N.Ye. On One Use of Multiprogran Codes for Statistical Coding, 35 aZ=;aD*S- Statistical Matching by Transmitting* the Position ~b tes) of Rare Spbols. 47 Blc~h,, BeLe Cmeecutive Codings, ' 55 3~rdi3A= in thi Tran~mission (Cont.) SOV/44W Kirillov, N.Ye. Elastic Delay in. Statistical Coding Systems 69 Garmash., V.A! On the Trmlamission of TeleAotogrisphid C=unications by Statistical Coding 7 -5 Makhonin, V.A. A Syste6 for Partial Statistical Matching by Transformation of Durations 83 Meshkovski:7, K.A. A Statistically Interference-Sapressing Coding 87 Blokh., E.L. Generi%lization of an Inequality in the Information The~r7 for.the Case of Signals 'of Diff,ezextt Durations 55 Blokh, E*L. Construction of the Optiam Code MMe, of Elementary Symbols of Different Durations 100 Gamash, V1.`%`.,, No Too KlrlUOV, And D*S* Lebedev. R4,erimental Investigatich of Statistical Properties of C-mication Sourbes 112 Ci =1-7~ S/024/60/000/01/012/028 :E081/135 AUTHOR: Blokh, E6L,, (Moscow) TITLE-.- A Random Vector with Spherical Symmetry PERIODICAL: Izvestiya Akademii nauk SSSR, Otdeleniye tekhnicheskikh nauk, Energetika i avto'matika, 1960, Nr 1, pp 102-110 (USSR) ABSTRACT: The vector is a noise vector in the n-dimensional space and is continuous; the probability density depends only -o.n the distance r (from the origin to the end of the vector). The treatment is routine and of textbook type; the last section (Section 6) deals with particular types of the general random vector in four examples. There are 3 Soviet references. SUBMITTED: August 3, 1959 Cardl/l 24846 8/106/6o/ooo/oWool/ow A055/A133 9 00 AMORSt ."Blokh, E, L., and Mmrkevich,.A. A. TITLE: Antifading cod ing PERIODICAL: Elektrosvyazt, no. 4, 19601 3 - 6 TE(T: A method of signal transmission is described, using correcting anti- interference codes and allowing to enhance the reliability of communications in the presence of fading. Assuming that the transmitted communication is coded by n-digit combinations of'a uniform code, a group of N such combinations is taken and written down as shown in Table 1, number N being chosen so that the time of transmission of N binary digits should be sufficiently long compared to the aver- age duration of fading. Transmitting Table 1, not by columns, but by horizontal lines, a part of the transmitted signal will vanish owing to fading. Replacing the vanished digits by an asterisk, we obtain Table 2 for the received signal. Yl- If the received d1gits are now grouped according to columns, we obtain code com- binations from which certain individual digits have vanished. If N - and this is the essential point - was chosen in conformity with the statistics of fading, the disappearance of an individual digit from the combination can be considered as Card 1/ 5 Antifading coding 24846 S/106/60/000/004/001/007 A055/A133 an independent event. The digits that vanished owing to fading are distributed in a random manner in code combinations. If each column contains one combination, the errors An the same positions in the adjacent combinations are strongly corre- lated. But if several combinations, representing a certain section of the com- munication, are placed in one column, the error can already be considered as in- dependent, not only within the given combination, 'out also within the limits of the communication section. In the case of an additive interference, a certain digit is replaced by an erroneous one (e.g. 0 by I or vice versa). In the case of a multiplicative interference of the fading type, the digit, isnot replaced, but vanishes altogether. If not more than r vanished digits must be restnred, it is sufficient to use the code with a distance between combinations at least equal to r + 1. Comparing the received combination with all possible ones, it can be seen that the received combination coincides with the transmitted one and differs from all other combinations in at least one digit. The transmitted combination can thus be identified ando consiquently, all the vanished digits can be restored. If -the same. code is used in the presence of an additive interference, it will merely allow to detect errors whose number does not exceed r; it will not'allow to locate them, and their correction will thus be impossible. The interference- killing feature is characterized by the probability of an error-free reception of Card ~/5 24646 9/106/6o/000/oo4/00 i/ocq Antifading coding A055/A133 a sequence of L elements of the communication. The ratia 6 between the duration of the vanishing,of the signal and the total transmission duration can serve as the parameter determining the fading action. When'no correcting code. is used, the probability of error-free reception of a sequelice of M digits is P, (1- om or,.. for E1ifica~ion r)f in ,, f~s t i izf, f-~ .1Z 3 check ~i4fits m,~re and 9 information dii~-,ts less Maii L-ne cliiw ~ti fo- Uhe ra!rp number generitc2,6 uii~ Onqmal priacciaure. 1 e 1) th e o r I I--i n-Cj 1 11- UDin~(, the Originn] procedure. ari, naB: 151V 1 v Ful I" ASS-,uI,-"lATiF-1N - T-F D 3 MTC t Reif% ?~h, Mat-m-ritika, Abs. 5VITO AUTHOR, BloMb. E. L, T t ~ 'an of thl-, procedure f o7 he ',3 s e -c I --~r of ";:'de a that correct packets of erroz ki ,,, -'- ~ CITLD SOURCE, St. Probl. peredachi irfGrm. VY!,- TOPIC TAGS., err-)r correcting code, OcAe requenCe 7 "N : 'Th- fo'loving mpthc~d Is prapoDtd fo-, of one packet of errors. Rach sequence or ierqou GF( qll) q -- degree of prime number, if 1, is broken up aymb a I sper blo,-A. CI denotes a syrJ)ol baying thn j-tb n~rlal mcm i- ~n Toy eac".4 L;c k queDce aij? a 2ji- "" C'N'll Card 112 L ACCESSION IGR: AR5012993 wh I e h I s s et i ncorrespondence vith the Reed-Sclomon code Fl-I't--Ma-~, I C- 4v2r-l- with c,7i=ec4ion cf not more than t errors and containirgz sequence of length vF + 2v there apper,7 ,v- zymb,:,Is from then not more than t symbuiE that the c,)rstric4e~3 -,-4z r. s mean s F~z E f errors e-nKLh. no-, by a aec~,ueac~; c~f' ir. symo, Ii vm( qM Ii -s c od e c -z of error!; o I no, P. &nd t axe 111hia 2/2' :ACCESSION NR: AP4038605 S/0108/64/019/005/0078/0079 ;AUTHOR: Blokh, E. L. Popov, 0. V. (Active member) memb or). TITLE: Nonoptimality of cyclic codes which correct single and detect double !errors i;SOURCE: Radiotekhnika,,v, 19, no. 5, 1964, 78-79 TOPIC TAGS: code, cyclic code, 'error correcting code. error detecting code, double error detecting code, binary code, Humming code -3, 4, 5 ... check digits and ivi I ABSTRACT: A Humming binary code with r ith a minimum distance d a 4, which has a length n a 2 Is an optimum code. The present article proves that: (1) no-cyclic code e3dats which would be equivalent to Humming a binary codes with d P 4; (2) no cyclic code e2dsts with d >2 and. r>3 check digits which would have 6 length n a Z" . Orig. art. has: 2 formulase !'ASSOCIATION: Nauchno-tokhaichookoye obshchostvo radiotekhaild I elektroavyazi 1'(Scientific and TechniciLl Society of Radio Engineering and,,Electrocommunication) SUBMITTED: OZApr63 09.Tun64 ENCL: 00 DATE ACQ. I SUB CODE:,-* d DF do,;'-." NO REF SOV: 001 OTHER. 001 -d C .. -- - - BLOKH, E.L.p doktor tekhn.nauk, prof., otv. red. [Pattern recognitionj theory of information transmission) Opoznanie obrazovj teoriia peredaahi informatsii. Moskva, NiLuka, 1965. 149 p. (MIRA 18:11) 1. Akademiya muk SSSR. Institut problem peredachi informatsii. BLOKH Error and erasure correction by means of the Bose-Chauclhuri codes. Probl. pored. inform. I no.3:12-10 165, (MIRA 18:11) :: -- TV TV %A F- M - r - - -I- w --------------- , - - - N - 9 a 0 AT 0 a 0 0 0 ~1 p 4 1 1 1 IS of If 13 It Is is U 11 1, 4 w w q W.W~W (SF 11 a 1, 1, a itV3101111 L?u jiss ism ale 4 41 41 43 a l L-6 I, F.-L A AA A I L a-AIAP-2 a ~.A 1.1 - - U - I~j, 4. 1AAp 0A.L. l. AI 4F L VA-ft -tMMIS AAAD -OC-1111-ft ees Be l l 90 so C: g i: -410 004 1 VsAkest"Oft Of rubblif while WOVAG4. A.- V. -00 1-6-MCCAVAlt GIW G. A. lik*h.. K-shn" -0b -- - "Mir 0 -00 PION. S. S. S. R. 110 N - ill"r lwol h h f i l i xoo 00 13 1 s o Orvii9t et c aura vu f Synt n crowduring Vukanizatim in molds with increase In the bei ht of th " Aumpk. 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I I Jvvoei~l too :1 M low 1. ind Ill U,7 low 11. 1 tic U1110:1.11( fit the .1flicle fit flit-Im loftwo, dvvfr,#~l boom (14M) t4lil. IN tUr 1 4111411110.11111171 10F It. Tht-41.01rubtlef IntreA,441 (town 0140421 (Or crude rutolver to OAMW low 1. atilt Ili 11.9919 low 11. Inic chorin. oital-ility tror-,ktance too Notrifing) sit therillmlialfit" Ill vAth"14 ill- t4ttlec ill which tile mill. chains are more Clokeiv Itack"I th4n thow Ili crude rulthict; (21 the motil. chalnot are litnind I-, orach inher to" rae I - C_C__ -C-0- C . 'or c"mi. 11-1.1 spilve 141tkv~oofittl a If,.% tol pall 14 the dimble lwadFR~,,-110) the slmv lattice fri,ftwill. all aggreit'lle III Imillf. devoid Ill twivilmlitill AIM th-finumbility Illooter the influence tol the fichl. mkilat ixistills lite jl~%Jxc cut-KIlt. 11 rvretellcef,. W. R. Ilenn &S&.$Lh IWITALLUMICAL LITUAttill CLASUPCAVIOM 4W 130 g Ogg 7., goo a vee see see wee __99 tse% U a AV 10 ~ IS I S do I 1 4 to a "d 0 0 1 V W 0 a a 3 1 T 1, 1, 4, 4 It IN It ~ Lot ; FW I" #A & S IN a U Not 0 0 0 0 0 0 0 0 q 0 0 0,0 0 0 0 of* 00 * 0 0 0 0 00 00 0 0 0 0000 0 0 9! 0, 0. 0 loc 0 0 0 000000 a F--nf 7 T 7 -4 0 W_'A A L, A b 4 to A c"e-04-904 '-,90 A to The OmU d Vok"Isallm IN oodhok-bubm"s rubber In Go proomm d vbjI cW L 0. A. 13W and b,) A. D. Mumb1tv"IM: L411636 Ptm' To No: 7. 33-4 (1047). of 00 Of 5X f1obbor MA 100 Pat" d %U~ Im m to 00 strength in kg./sq. cm. mul rdatitv elonsatim with th~ 0 vange mist. cmtg. the following addns.: (1) 6.6% styrene, (11) 0.5% dimomminabenarne (1111 6 bIA styrene plus see 00 0.5% dWoolminobensene. (M 6.5% ~ymue 1u I 00 1 be=ftfrmeo V) 10% xMlwltrUe,, i"O 9 diascamolnobenoccroe. =91P 00 S plus 1.9% accelerat (411~, 0 99. 1.5% a Pluf 1.8% accektolor, (IX) MIA% vinyl chl-mr. =00 The mallts ovem sm follows; 00 roe mist. t"Ill, (Nds.) "ressill sloclatiom 000 Standard Mo ac 22.7 IM 185* 30 69.5 IND 11 850 20 86.3 115 Cot I ij! m lab* 2D 9o.$ M 400 a TV 1950 30 02.4 1110 185* 30 43.1 270 set VI 186' 30 83.0 3110 wee VIT 143* 30 90.8 4()D Vul 143, an 79.3 tt 195" OD 59.2 1.10 off Marshall Sittig LA -ILA NITALLUNCOCAL L....4funt LLAIMPKATION coo glow l1re;jIft live Ionact -4 logo.. wk,14wl! 41 bu I I IA 0 6 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 w0 0 0 so Wlbo$ 0 opt e'l RoAgimm"Phis IVA dwalris wvvs~ I!r of 1&111917, No. Iffit. Uvwmimmy (Lcg,4 434: Chm. Abs, 1047, 41. WM~-Tbe okjlt" lit the invirstigistion vu to mr1ra the theorf that in The funnalion of eburifte a campl" "ce-lattkv strim"re is fim"d, do, Is dairactedstic of Solid .4 1. Aill III'llf vie 1111.1w. 'fir imt~l'if-11. 44% dw. i,r!r madt wI I-we .%whelw It'llif of dol-it% tn,l r!e'rItir.11 ~l 1~ 1hat (1) 1% fill etiv thtlill", Ot--m ties 11.1%r a d"'1 .c l.k.;Icr it uhi. Is file me I ",;!e O-Ov patt."I thm, '.1 . tlowe If (little fuld, tl.r 111"16-Way 416til. -tie loptill.] t "Cachoiller I.Y -i AwIJ4 * U1111ilij: a 'Imirr latOrl. "ith A 11-411 of file denlk- Ivndf and (61 file simm lattice an T.11.1"IllrA .1ev.-itt ofirlitation 'AtIj 0 64T, I T 00 Ned of be _A Th I= 106% 116 00 hot. 1. do" tblwmmaLvslgmn*-?W. M 41,,,4,0, 00 0. A. IjkAh (KIrv Terhool. lost. ught Induary). J. AN AIVIW-Cka. (V SA R )20 Iff"0947MORUSPIfts)- so aleadiral Ion takes' P" 1~ beating &MM, in the W 06 oeser of any fuler. Pure Na-butadiene Mbber (1) bcatvd al 21W' (no Oil M., and 160 min. Pvv =ively 00 ",*.SYM and HIM t4" of 00 8thantoebortile. I costa. 6% diandoobeume (11) at 373% the VIi 30 and do min. Pvt thermorbowtee of Brivell bardsen ts At (mn 40 '230and + 1% P + 10-1-M- wdtr 3M ISO Odun-aftr or 120 mm. at 250-270% gave vetaf- (pluticitj boultes; the 1-1311 copolymer. 197 min. at 160-770o SAW 4 bri e 00 250 min. at M-W, pvv, mop., a oemieboalte and a very =t 15(,* 00 3 'hardeboulM Mrrh. anti Pbys. vonsts. of some SPK'"*= him., 3JO ftftv: pure 1 (120 frtin, at 270') beruling Iftengt1i. dr 0 2 of Mautic A. - &I-M kg- 1W sq. cm.. -tatic 0. - A97 3.25. 0.42 Brinen hard" h - a 11, thrruistnitability on 64 (mane-, 0261. am 0bated 00 dW coust. o " 2.7, diritc. know tg A - 12D min. 0 ?.,6dkkt 040- elec. rMiStIvity 0 - lot, ohm-Cm., op. varface tMwormalon 104 O~hm- bremkd*wu Potcutial IS m 24 "lle the kv./mm. (with 0.2% DA); for comparbion, S eboulte o 3-11A 101100. 10 E"; pmvd#Jn 10.012-0.027, p JOK-1116 E909ratW) 11, p. 6-18. =t is charactuited by the following data of p1saw spo dwopm of wt lx. by 7,9 nwrOft for 2 and 40 days in: I SOs 0.00 and 0.10; IICI , tene (11) 1 0.14 and 0,4; 11NOo 0.4 and 44; N&Oll 0.01 and 0.10, to 4.93 A. .Wfa 1.93 and 3JO, CIICJ# 3.48 end 9.43: machIm oil Ow of I I 0.47 w4 I.M. tar I coutt. 035% 11 ~180 Win 2,100) 436A 14 .W; I Cl 0.02 MW Wo. to 11404 0.01 Mod 0 -MA JR0.0.4i and IM; NaOll 0.02 uA 0.0& Tbe.tcmp. r&W of for J~ a] Cdective thermal vulcauln" to dEld tberumbosite. I, t1110011100'. 270-2W. Tberatueboaltes wt. AIAQ obtalbul with ooft POlM 11: vukm kadW, chalk, beryl ebouite Is CA le.,betwito it. a 11 1 a K it A a tt 0 Z~T e't *9J. i, Sh a A 0,014, , 3 X 1011, P, 3 X 'o,KE With Zi% k%Olln. 170 Min. Rt 2M*. 0. W.1. A .4 3.7 tg 4 0.007, P I X Mu. 0. 10". lietter ;u4incd with Iowa tax" of fiucr j in dplift of the Structutoi of Wtured thume, Nt-butadlette MAW (1). lbe dielec. cun%l~ I. to - OAO - 2) and the diclec. loot tion p atred at 16 on 'pocitocus 2.4-311 mm. thielt 5 50 berWehosaW " follows. taw 1 "0411 025). 3.51, OAM, %ad 0211; an beating In . at 1150% 3.32,0.431, and 0.1740; on. hating I I with subsequent cooling from 150 to 58* In 0.434, and O.MD; an beating 24 hrs. at 0.1700; on brating 2 hrs. at nW. 2.7, k and d INM b l e. an uyt" 0.0007; 1 Costs. 00% ta at 275' S 0 P O W t 0d; baot~~ o 4 1 in . . . . m . . g , it 275* 3 4 OA75 and 0.008. Thus, in the v talb by 5 'M 06 1~i`* a ;wt polymer a9- . blab-temp. Vulcanization to thvr;;W"1v ed by a 23% dcvvcoLw .4 .. BY x-r-y diffroc. 0 wmatiou of the soft ymerutpurel(IS-mia. rbl l t d i h i $: er- earmoe n t ei e a is accompoin y a cine (wwpbow~ ring) d from SZ to 4.97 A.. c b .3 0 :1 ea. ; dimutoo 1%; In the Cww of I costs. 0.2 ftted 6 min. at 200'. the cg;;; is Itom 5.41 Le. by 8M%. UNt prolonged deep vWcaula. 7 S' 4 d d 0* -O- ecreaw to y 190-min, beating at 2 , bylY.15%;foclctinia.0.27eU, ~ by 12,94%. The tatcriku" spacing Lot at. 10tvditmoct tins mnWn% pmctkally co"It. l i f I h T on o razz onnat into t e 3=43T A. uo's W- W Ite, and hIgbly vulcautred thermo. vo 0 wc*mP&GW bY an imTe4le of the densitr by 10. and t3-15%. N. Tbou AM I _;4 al -WM I I 0 Ill toe's A A A A-A-P. --t-1 so a ~ 040 A 00 see so 16rubtaw)f: tlA. INM 008 114 A I I 14 ( -jtgk4)m Priam. 8. No. I mentsin tbelf-S-S-R- 21 es a bbef develo h i -00 et c ru P Omrti synt refrfrolers. Me 06.3 age OOV ate 0 it: 40 a moo i too t to U 6 0 . We 6 sold&* "At Oft'r Got %last, 0.9 ~v it, IT 10 91 ul 11 fm 0 go a 904 9 a 4 3 6. 9 KA drA 0 if 14 G -_-".__Ah4V 9 k to - _ I P -M 0-1 f - a I ininobenwat A grain of sample .. , 10011 is Itedlitl Willi I dnT COWN and. with stirrins. s AWkistloms of "a (dr =~Yollia 1'? (" "istral of xUl'beig lValp"fooft row i of robber = M wvrral 411aim W 1% NaOll 14 ad,liel; an ussoffe-ml Vitt. t 00 -14110 A j11s)UA-Z4"WY4 Lab. 14 ' . . 3711-830111,110- o a two trot, vuhwh is arimitiv, 10 a fosetkul -A a via, .4 Aldot (q-C.ol 1. w L'Ilvi i , ell (till lm l 1 104 Sixit-iQ i"Skict seats we" developed l l W tat memaptobell. Q UO M , e ; a 261111. 1 M14113 lit rVrfvI drops W KJOIJ is Irmled with a few drug. io% ' 1-04 sothlitzoi psis i e. thiumm, =my diasoarninOwnienr *W Trace tte . c s 4 Ph lit inO and IlNO,, Then I T KCIOof NaCT(Is is addrd until a Violet lil 4 '04 , or lic n $w ilevriot's. ZAP0. Ime melboit is beqrst till the t,4xvhvm- -rtim %illk twittly osid4sed diphrityl- 04 i t lt fb t i t t d a grain of the SAM1.1t. not t I %%to la to-t nel' l ) I I I 1h 11: vAllooldr. vilik-b impatIs a MI C"UW to The gra"u)", Nigs) -W Xl&Vt% &I.# to%~ . pialtish c,,4os. thts. boat%Vi , 1 -64 of . fi r& A s W e spo rea e e; q1 o arm trs a yellow COW of it 11,4 an orange ring ("I Nih); vanthes in 10! ,~ At4-il I. Ilic sainpir to xr"tvd with -_- a rolis Iq ale. Olipheitykarbasidr: after thecolortle-relops -of got 1 d"jr. of thiumen is decolvelfird by 10% IINOt lit ran for hIrtitilLiett by 141% ArOll, lit u pigmentril rni4e . 0 41 "wilraM it, in, v For detertion In a tut-10" it call he delevird as such, Ifiturn g tr4l rubber Fr. zel : coniplet ittitt.. The falter W treated with NsOfl, and the 1' th lo 1 I 41111tre 4%king. test to board an a bl i 0 C S0411 eco 11190 W- The method b based on euse Thivilm H e ue ro, ot w ll, llyfitlitle sobt. %, alizatin Itordeaus (11.2.&A. - M teirsh dros suithro uinone) i i 1k O M z 0 1 I'd 4 0 . . O Manif YC * l t d f . so n n a or y y q C CO I P: e at reate samp of usidatkni, of its 8 . a ftsr grartales o s s delected by rubbing with a few d oro. 12i P ZOA 901 with 2-4 ilrops IINO~- after a few am, I cc. 11,0 Is added. t" of white ine test is a l d f 2 ~ 5 Ch f dine %14", of Shp dye 141141 " drops lowed * b sli ht M th l I i l 0 4 a . 4 , t w" if ew roM o ; pi l d l 1 e co or o.. s ntense b y g ue . in doubtful IjxS(s,, the some protsi es 131 dure Is use for comp 11W. 1 D k W 0 f two firrantallim allows a bluo PPI.. in JIIW3 r of MOP are 4 which vilay be Altered be - fore odda. o 1 6 *. t. i# f-r hfgCtk, the pla. Is light lilac, 0#11CHOM 40MOS 4 Pb jeewisse. The test is l assed on the Grange-Cied Colof an inzwO. FcISl's test, i.e.,* red color with No rboilizonsir 1 ~i~ reoctlois with AuCls (prei labIl complex formation), a ft I%aq.soln.ofAuC4. ap". lit If U.S. DrUrtiall of fftres -/ Me im AICOI ilk - R*1 ineSuvil is bared an o id ti t 0 I x I 00 1, traf to pink, which sums derp-ml on addis. of Sif:dopo CA anti thlarars do rMt l x on o a :1 a . of in ronM. HoSO. Is dild. toll;,; 11"'k, TIMP 2 d 0 A e.: anil " ysilittiff-plink c%*x with ale. AuCls: " AuCl With a f rorm, .01 N AgN11,, and a pifth of (KII,j.%o, aft addral Anti best Is a lied lbe lak l f KwI o f~ . mists., The sample in shaken Willi f(v Clem". (a ctimpl. c0 or o ; v pp t y l"nills defirellots down to jArat~&at" of f AuCh Is added to Ow dn purr C1%, and a drop i li i Pbas t- k vokir In The lit Is lhr i vMof clasirts. Rubber lit"A. with No cotalylit (butadi- l e I ) t I - n I infolwirve m; a p li J. , r k IF vile io r ynt o dettvicil ty fishing and testing the sq. tat 'Ailb Phelitti lithmirlow a inkrol o i di t N Oll N; 1 lug o n va rs or ; & p p I it 14 1, L A ,-catalyst. a goj .10 0%. Q.t it -- --r of I ILI on pyr,,%lysio, by using a mitio lem-tubis isisil Con NO- Iwitwi, on ils run; clik"vinyl pW - y t L U is kv 0 As T c ;r X" M is it if et i 0 of a to a 9 it of . wa Ant 0 0 *1* so's 0 0 0 to 0 * 0 its 40 a 40 0 0 A=kmollil: of droo maidyals foe tho datection 44 com- libar At. Kullierx-to-&- "=.I 11M N, (10491; el. CA~ 43. WS.-TO deteei sook boll OJ-O.b a. findr divivied nthtwr "mille with 11) rols. of Otoll.'evap, the Cu.. treat with a little 11'~ X&OH. filter. w%t aild it 4qs of 2 XBOW.. A yellow or ion orangir-r0lmv ppi. It a pixtitht Irst. Fiv thissrom. Nil %ith hlelCo. itral the hot lukt. withii fvw IlimrstA 21 '~ Z11-110 still 2 :1 Jujoil vivic-1, N11,011. Allake 2 ~'I ralli., 411- Cant. dil. with 1190, treat with 1 11 drul" V, ell SuNtalt And a few drom of CliCh, anAl hake; thlurant gives it Yellow or Ivown ars. toyer. Ftw dil'Arm v1gMd Midi Ile. 114,11 with- "toll. crop.. ext. with 1-2 cc. Mt(). eval'.. and great the "41ue with a few strum of Ni glymitne equil. solo. a I.". t~t k a pink N4,w, Por systfur. ban with pyTidine and a fe* drn,. 2 X NmOll - it bluectilor b the ims, test. PorZMO)w?l1%vl1h:!0"rA~0Jl:' .1t16, anti mill 2 j(s,,,A of a evap., take up in 2 drops 1 q 1 Ile bolit. of O.W; eq. CoClj (%ullate or acetate can 1W it-of) and 2 .1 drt vis Nifilig thint-yallate; it 111vir CV4,w I% a I"". test. Pig 111il tuidf cad Nisic 4arboomir 1-411 with *_NW; Avoll,- rvap.. take upin and treat with3-4 drops4solmol 1-2ttig,juiualmArinin 1(l cc. IhOll and an exem (,Ifvpwi%c) of 2 A NAM; a 1,111C 1. A IWW. t"t, but 1191t Violet or lilsc~ a blank t"t In mt Iti. as the c%4,w rbat%Xr iv, 11"I vetv View. t". Ni. K. BLOXH, G. A. Vulcanization Interactio n of vulcanizing and catalytic agents Leg. prom.-12, no.7, 19520 am m - or Mali m1u.-Cithii0a, mam.-zWor it~ ebkkr*vkhkh h va Ov 4r , - un-' etect. hy a NI 4XM H i a for, ~,o i'1 a at. "1104 riftw.1 v it wn, dica , It i o o l q. ffo g4, ne ex ' then ussu t3 vvhkfl rin ti l~ t iii44t f t f o ~ m o e ~ c a z m " Cut th fret Sao the 4F'. qS32- Application Of I)rop Analvais 10 dw I)vt~llon '14 .,. %jillurm 11. L. M. Compounding Ingirrdiento 1" Rub"" tj%, nuldwr ChrmistrY ~BIIIVIII 'old E.. A. 0,101 toUtt', 11131 rl trials kaVa V Iv awract"ll froul Ilrevil"I., J, fAj ON, -141g IIAI- Ri m- R, -M M-Ri LAM -d M-Al phtfkmy III-" S~S.F, ou CL Fix-Va! i x4im Nflak, 1053, kimm! tubbt-r il dirg-n-N) with 10 mfmr- f~16Killg alp'Itmrillal l4tti% xnt4ta of ~Flth: ZOAJ)~4 to lace inti'mm. exirbange of pujp~'W- 1O'j'xm' I h is, ndarded in P rAlfi VP lie - tho prawnce of wlv~ra irh im ~ummo. Ttm apaimem wim SM wm O%hjiml with alk4ma poumium ponwmgAnale to 2- , hFdraxybcmthlA=h-% whi& was deuaW o. hence the exohnnge rravtiun i3evolvas sololy tL-, rApbur ol aw %H group Tiio 2-bentyllb)LI a loguo of fu:20d Vnil; Sy~ a, 1WO kbowul = evidence of inatope mchwqm "-AxnirtoberoelhiaWlt~ nnd SM SiMUSTly show*,d no axcbanga at 150T. VkIt'l the aftram. ~Ult 1)"'ing tw.alllwiazolo dl'- ~~3t htm*~ i 7-1 1 p - ' ~,.W OT i"-_' -A A Plul-l R l; G b o - o b ft Wu Light Ind.). Dold, go 201-4, ' C~4, -48, '1047d;-The followla g exchuu,,e r,-: t lCn6tivtv the pcytulmt ths, ex w .11S 7vith the 8 in the ~ roup jku,j not ? Ol I slweY SW uldhid bt We met xod of.Rfro, a at. (CA: 409 , -, : ~ :, i 1 137 * f thl b u 1t 1l I I al ; oc at to le ut ve 2~nlr t ie nli S y d-, th -0-140" Ofid W for 73 mol 45. I m lem 1* m 11, P - other - ~,at*174 '6r 30 whii, retalas Its l4activit)% 'I'bis appa Mut - of 1 is ittribuWAa to ibe hlhh naeltlug ti~ip , , k: 270~27 P, uninaty t(% _W IQ-lie ex- pwtulat~t as (in. ti brtuutomtikul, t~tuh~j it% illmCivity kyb& t (!n nri w, S*ln:~a staled tOx gt 1864)' for.1 lim. It -Oz, C-S'gnmip litkv~ Ls 3mt) Tb~t uaai,,.~ f It 18%. for 00 &mv BLOK11 ~G. A. 11 Aug 53 USSR/Chemistry - Vulcanization Accelerators, Isotopes flInvestigation of the Mechanism of the Action of Rubber Ifulcanization Accelerators, Vulcanization of ROber With the Radioactive Isotope of Sulfur, G.A. Blokh. Kiev Technol Inst of Light Industry -DAN SSSR. Vol 91, No 5, PP 1107-1110 Studied the exchange reactions -between accelerators contg S and the chemically.bound or sulfur of rubber using radioactive isotope 835. Results indicate that under the conditions of tech vulcanizatiot of rubber, it is free S and not the S bound to the ru'bber that engages In exchange reactions with the S atoms of the accelerator. Presented by Acad A.W. v-rumkir, 16 Tun 266T6- ~.t ~Fl m.balry 2.=OrcAptow t PlakI Ot c `P $ bctwm vms studled WetkallY by 111taw *1 lull labtl"A with SO, the kWetws 61 tile twto tion tadkatca fra vpI order of tM mcilon, Rt 150* the' rifecMA iulle*Plj tsO.1171hr.: with iin actIvatimcatrzy of 2bil krAL/nialt. Attempts W rist hilbo tempj,.vnm n,-ttem. r6mgtioa ttat Interferes : At 1W rciwflon runs of 10 shaple S eulfmnp. hts, duration are-qadqactory, but after Omt 20 h". the 2nd 20%. Tht ex- reicficv iDtufett3;tO:tIIc -extent df some cham~c is btlipved. to inveft-d by formation of the,2,24- mercapta 4~=Iv. *Ith ILS, followed by loss offlS.~ r., M. Kowlama--a -777 77~ 7 r