SCIENTIFIC ABSTRACT NUDELMAN, B.I. - NUDELMAN, Z.N.

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CIA-RDP86-00513R001237620011-8
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December 31, 1967
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SCIENTIFIC ABSTRACT
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I. Conditions favoring the formation of er7stalline calcium carbonate during the solidification of certain cements in air. Uzb.khio.zhur. no.6:17-27 159. (MIRA 13:4) 1.OPrtnYY zavod Upravlanira proizvodetva stroitellnykh materialov Tashmovnarkhoza. (Calcium carbonate) (Cement) SWUMAN, H- I. Crystal structure of caletua silicates 8jid alumdxates forming at lov texperaturese Vzb. kh1x6 xhur. no..3:66-72 160. (KLRA 13:10) 1. Opytnyy savol Upravlonlys, proizvodstva stroitelOrM oLtert&- lov Tashkentakago savvArkhosa. (Calclus silicate) (9SICIUM &1-1 6) NUDELIMAN, B. I. Cand Chem Sol 11 Man -- "Low-temperature calcLum compounds and the atmosphopto stability of bIn4ing materials on their bass". Tashkent, 1961. 19 pps 22 am (Acad of Sol UzSSR. Joint Sol Council on Mwm of the Dept of Cool-Chem Sol), 170 copies, Not for sale (KL, No 9g 1961, P 1-77v No 2428o). Z61-5236g NUDELIMAN, R.L., inzh.; PTASHCHFM09 I.P.0 inzh. Combining the processes of vibrating and molding plastic ceramics. Stroi.mat. 7 no.6:22-24 So in molding 161. (IMA 14:7) (Ceramic industry) ROZOVI M.N.; -NUDELIMANO B.I.; UVAROVA, I.T. Intensification of the production of clinker in rotary ki-Ins. TSement 27 no.F,-,14,-15 S-0 161. OURA 14: 12 ) (Portland cement) pyp!~' N, B.I., inah. Changes in the mechanical strength of a loess body during the kilning process. Stek. i ker. 20 no.12:20-22 D 163. (MIRA 17:1) 1. Konstruktorsko-tokhnologicheakoye byuro po stroitelloym materialam i konstruktsiyam Upravleniya promWahlonnosti stroitell- nykh materialov Soveta, narodnogo khozyaystva UzSSR. LOBANCIP Ye.M.-, SOLOD01INIK011, A.C.; KRYLOV, Mo., NUDELIMANi,~.I. ROZOVS M.N. Use of radioisotopes in testing the lining of rotary cementation fu'rnaces. Atom. energ, 19 no,2t2O4-205 Ag 165, (MIRA 18t9) ITUDELIMAN, B.I.; TOYHTAKHODZMYEV, S.T. Effect of the addition of salts and oxides on the reactions occurring durln~, heatinr of 3CaC'0? + S102 and 2CarO + SiC. mistures in the 800-1400" tempera ure ran~!e. Uzb. kh?m. zhur4 9 no.4:17-22 165. (Kl~. 1e: 1~1) TJ~~LIMAN;~ BOI.; TOUTAKHOWMAYEV, S.T. Effect of the additiom rf iml,~.q and axiAes on place on heating mN-turoo of 3CaGO) -+. A] 0 and GhC03 L 01 within 800 - 14000 tamperature rrn~ge. Tjzb.2VI-m. zhur. 9 rio.~)4 14-17 165. 18.-12" 1. Tashkentakiy nauelLn,>.-iasledovatellqk',-y proyektny-y iristvl-,Lt stroitellnyk.h materis.lov. Submitted July 7, 19641. DUSYATSKIY, A.Ya.,q inzh.; MELIMAN,, G.E., inzh,; SEMNYUK, A.I., inzh. Storage and transportation of bulk flour. Y--kh.i avto=oproizv. 16 no.4z2Z-24 Ap t62. (MIRA 15:4) (Flour-Transportation) NUDELIMAN, G.E.; YEGOROV, V.P.; KATS,I.G.; IffSINj A.P.; MACHIKIIIN, VELITSHCHEV, V.N. (Continuous line for the production of halvah] Potochnaia liniia proizvodstva khalvy. Moskva, TSentr. in-t nauchno- tekhn. informatsii pishchevoi promyshl., 1964. 16 p. (MIRA 18:5) NUDELIMAN, Goda Srulevich Gbaracteristics of distance-type relays based on the com- parator principle. Izv. vys. ucheb. zav.; alektromakh. 6 no.12t1380-1386 163. (MIRA 17ti) 1. Starshiy inzhener Chuvashakogo elaktrotekhnicheskogo nauchno-issledovatellskogo instituta. 50 3491 S_0_uRCE__C_0D_E__:___ __- /6__676_6_6/_of8_/dH_i_/dH~_ UR/0413 INVENTOR: Gershte fludelInan, I. Ye.; Promin,_V ekht- man, L. A. ORG: none TITLE: Method of processing gravimetric survey results . Class 42, No* 186155 SOURCE: Izobret prom obraz tov zn, no. 18, 1966, 111-112 TOPIC TAGS: gravimetric survey, gravity isoanomaly, dielectric sheet, pobentiometer, gravity parameter . 0,e#?V1"70rV'1 ABSTRACT: A method is proposed for processing gravimetric survey data based on analysis of isoanotnaly gravity maps. The isoanomaly map is put on a dielectric sheet, the interspaces between isoanomalies are filled with conductors, and a potentiometer adapted for each interspace Is attached. A point-shaped charge is moved above the dielectric sheet which measures the current. Parameters of the gravity field are deter- mined from the intensity of the induced current. This method permits a continuous distribution of the gravity field, higher accuracy, and a shortened processing to be obtained. Orig. art. has: 1 figure. UDC: 550-831 -- ,3349 9 NUDELtMfl, YERIEMOV, M.G.; ZHULIN, V.Ya. Istwedmew gee~ eeenomy and iniustrialization In- thw laying of foundations in rural construction. Oan., fund. I makh. Crun, 7 no, 6:1-2 165. (MMA 18:12) 22(l) SCV//3----1-13 ~-12 AUTHCRi Nudel I man, L.G. , Cindidr-- -P of * Pcr)nic.-I I TITLE: The Reserve of 3hortened Ti--e P -'-'R 10 D I C AL Vestnik vysshey shkoly, ':r 4~ P 37 fU,; AB3TRACT: An attempt to re,.iuc-., the numb~.,r of students' r(-, iu.re. exer- cises, and, above all, the numbr,r of lecture (.urL;, in a :-e- nerally known fact. ~~herp --re many ways to d,o it, t..u*- it is difficult to choose the most acceptable one, a--i it is si:-ut- aneously necessary to s,!,fegruard the of t~~e its und(,r3tandinV and a hieh scientific Jev,~l. 71;c .:.o.,;t r- liable way to reduce the nu;.iber of lecture hour.: isv n 4 '.: 1-1 author's opinion, to ex,t.ound the :~:aterial r)f the coursei a generalized manner. He provrs this by an cxample. H ~: r I.V. Kharizomenov's guggestion to or/,anize a ing of lecture summaries and manuals in ev--ry vu:,. as a v2111:-, le one. A,;SOCIA11'IO1: Orenburgski.,,, scll.,,kokhoz...,aystvc-nri,,,,y instil.ut (M-on:,ur- Ar ;- i - cultural Institute). Card 1/1 MUDZLIKAN, L.G. Investigating the rigidity of P415A hydraulic press frames. Kuz.-shtam.proizv. 1 66.12:28w33 D 159. (MRA 13:4) (Hydraulic Vresses-Testing) 4F. NUIELIHANp L,G. Investigating tha rigidity and strength of the P474 hydraulic press housing. K:um*-shtsx*yroizv. 3 no.7:20-25 J1 16i. (MM 14:6) (Hydraulic presses-Teating) NOWMAN L.G.; Prinimali uchastiye: V-E'RESHCqAGIN,'Yu.F.; LIVOV, V.A.; S;TT-,UT-S.KIY, V.S.; KOVALENKO, A.D.; SfWArOll, V.M. Study of tho strength and rigidity of a P313 sheet stamping press bed. Kuz.-shtam,proizv, 7 no.2:27-33 F 165. (MIRA 18:4) =ILI KAN 0 M, -"Mm"MR0=4416 ~Pass from words to action. Orazhd.ay. 14 no.1:12-13 da '57. (HIPA 10: 4) 1. Prepodavatell uchabno-trsalrovochnogo podrazdalonlya Ukratunkogo territortallnogo upravl~nW&. (Aaronautics--StudY and teaching) 25(5) MSE I BOOK E"LOTTATION BOV/2425 Nudel 'man, Mb7zey Grigorlysvich,, and Sewn Pavlovich Sayanko L------------------------ Povyshmdye proizvodltelluosti truda, pri makhanichaskoy obrabotke detaley mashin (Increasing Labor Productivity in Machining Machine Parts) Kiyev, Mashgiz, 1959. 155 P. 5,000 copies printed. Rpvieweri V. P, Zavertaylo, Candidate of Technical Sciences; Eds.: V. E. Dampe, Candidate of Technical Sciences,, Docent, and M. S. Soroka; Chief Ed. (Yuzhniy Division, Mashgiz): V. K. Serdyuk, Engineer. PW.POSE: This book is intended for engineering and technical personnel and production innovators in machin ry-manufacturing plants. COVERAGE: The book discusses measures for improving production processes and reducing the time required for machining apd support operations in the production of parts on a custom or lot basis. Problems related to parts Inspection and the proper layout of equipment are dealt with. A method of calaulating the efficiency of productidn processes Id described. No personalities are mentioned. There are 15 references, all Soviet. TABLE OF COWENTS: I Card 1/4 1 Increasing Labor Productivity in Machining Machine Parts (cont.) SOV/2425 Fpreword 3 Ch. I. Thprovement of Process Engineering in Machinery-manufacturing Plants Specializing in Custom and Lot Production 5 Design requiremonts for processing 6 Measures for improving process engineering 7 Technological documentation 10 Setting up production processes and production lines 11 Ch. 171. Basic Steps Being Taken to Reduce Machining Time 13 Measures for facilitating the reduction of support time 21 Ch. 17. Housings 34 Design characteristics and requirements for housings 34 Materials and blanks for housings 35 Production methods,, tools, and devices used in machining surfaces 37 Machining of basic holes in housings 39 Production methods, tools, and devices used in machining basic holes 43 Ma.chining of fastening and auxiliary holes 54 Precision control in machining housings 55 Laywt of equipment for machining houBings 57 Card 2/4 rners"Ing TAbor Productivity In MachInIng Machfte Parts (Cant,,) Ch. IT, Spw and Bevel gears Design vwlations and special requireWmts for gowz~ Wterlsk and blanks for gears N=hWng blanks for gears Raginmerl" processes for amtting spur and bevel"gears Roughlng and amIdfinishing gear tooth Finishing geor-tooth surfaces Machining shaft bores in har4owd. gmars Controlling the precision of gears Le7out of eqmipeent for machInIng gears Ch, V. Shafts Deiign characteristics and requirements for shafts Materials and blanks for shafts Engiwwring processes in machining shafts Production methods, tools,, and devices used in machining shafts Layamt of eqnIpment for machining shafts Ch. V1. Appraisal of the Technical and Economic EMcieney of the Engineering Processes of Machining SW/2425 59 59 63 9 92 98 107 109 113 118 1A 1A 125 126 129 138 140 Card, 3/4 J AID P - 5143 Subject USSR/Engineering Card 1/1 Pub. 103 - 2/18 Author : Nudellman, 0. E. Title : Automatic loading mechanism in centerless grinding ma- chines for grinding tap-borers. Periodical : Stan. i instr., 5, 7-10, MY 1956 Abstract : The Institute for Organization of the Machine-Tool and Instrument Industry (ORGSTANKINPROM) designed an auto- matic feeding and control device for manually operated centerless grinding machines, thus transforming them into fully automatic units. The author describes the details of construction and operation of the device at the "Frezer" plant (Moscow). Seven drawings and 2 photos. Institution : As above Submitted : No date YAKOVIEVs Dmitriy Georglyevich; NUDELIMAN .9 A~aEmz!anuilovna; Ka"VP VGFOV kand. tekhn. nauk# retaenzeiit-J--HALKOET-,- A.F., red.izd-va; SOKOWVA, T.F., tekbn. red. (Readjusted automatic lines of modernized multiple-purpose machine tools for the maimfacture of taps] Perenalazhi- vaepye avtomaticheskie Iinii iz modernizirovamifth univer- sallrqkh stankov d1la izgotovleniia metchikov. Moskva, Mashgiz, 1962. 226 p. (MIRA 15:3) (Assembly line methods) (Automation) 20570 3/109/61/006/002/002/023 E14O/E435 AUTHOR: Nudel0man. P.Ya. TITLE: On the Linear Correction of Transient Processes in Finite-Bandwidth Systems PERIODICAL: Radiotekhnika i elektronika, 1961, Vol.6, No.2, PP-193-196 TEXT: The article considers an idealized linear system with infinite attenuation in the stop band. An energy criterion is adopted to estimate the intensity of the transient process occurring in such a systemo The ideal frequency characteristics of the system are assumed to be unity transmission in a band of frequencies + fl and zero delay over the band, with zero transmission outside of the band, The response of the filter to an arbitrary waveform y(t) is given by the Duhamel integral, The problem is to calculate the waveform y(t) of duration T resulting in minimum energy of -the filter response outside of the time interval in which the waveform is actually present. The problem is solved in functionals, leading to the Fredholm integral equation with positive-definite kernel, Not surprisingly, the solution obtained for the present problem corresponds to that obtained IX Card 1/2 20570 S/109/61/oo6/002/002/023 On the Linear Correction of E14o/E435 previously by bl,S,Gurevich (Ref.2) for a pulse giving maximum energy concentration in a prescribed frequency band. The result is titan extended to a system with arbitrarT frequency characteristics within the same passband - R. It is found that the input waveform must be "matc-hed" to the system to give the maximum energy concentration in time, There are 2 Soviet references, SUBMITTED: June 7, 1960 Card 2/2 ACCESSION NR: AP4024720 SIOL09/64/0091003104011040T AUTHOR: Mudellman. P. Ya. TITLE: Transmitting nv#tIdIzn@nsfon&L information aver a channel vvith & Limited frequency band SOURCE: Radiotekhn'ka I el*ktranika, v. 9. no. 3, L964, 4OL-407 TOPIC TAGS: Information transmission, multidimensional information. conuuunication channel, vocoder. orthogonal vocoder ABSTRACT: The possibility of coordinating a multidimensional (e.g. . tv. vocoder) message with a practical (limited-band) commisn' ton channel by an. expansion of the multidimensional signal Into a generalized Fourier series. whose coefficients are functions of time, and by transmitting these coeffidents over the channel Is theoretically studied. The method has been used in orthogonal vocoders and theoretically og"red by K.,A. Mwelesimw ("Some card LIZ ACCESSION NR: AP4024720 problems in the theory of electric information systems," LKVVIA, 1966). The present article specifically tries to enhance the efficiency of the method by selecting optimum components for multidimensional-to-single -dimensional conversion. The mean statistical error is minim' ad by selecting orthogonal functions. transfer constants of filters. and filter passbands. TY scanning is considered an a particular came of multidimensional signal transmission. "The author.wishas to thank Do Po b(illman, A* Yue Lev# -and V. L Kulys, for their I valuable advice. 11 Orig. art. has: I figure and 30 formulas. ASSOC]ATION: now SUBMITTED: 30J=63 DATZ ACQ: 1OApr64. - ZNCL: 00 SUB CODE: CO NO RZF BOY: 006 OTHM: 11117DELIMI P. Ya. one relttionsh4p for amplitude-frequercy ard :hase-frea~ ei-cy .L - I distortiors in-,.r(-d,,-xed by a linear s--stem. 19 no. 12:67-68 D '65 (1., T:,~A lc~ : I ) ACC INRt AR6019062 SOURCE CODE: UR/0274/66/000/001/AO07/AOO" AUTHOR: Hudellman, P. Ya. TITLE: Prediction of a stationary random process by means of a filter with assigned phase characteristics SOURCE: Ref. zh. Radiotekhnika i elektrosvyaz1, Abs. IA40 REF SOURCE: Tr. uchebn. in-tov svyazi. H-vo svyazi SSSR, vyp. ?2, 1964. 147-151 TOPIC TAGS: randolu process, computer design :TMiSLATION: A form of amplitude-frequency characteristics (with given phase-frequency ,characteristics) of a linear filter, for predicting a stationary random pr*cess with ~a minimum mean square error, is sought. The solution of this task can be useful in' Ivocoder (telephony) design. The linear prediction problem for a stationary ra.ndam pro- Icess reduces to the following normalized expression: ,where n(t) is the predicted random process; h(t) is the pulse response of the predic- ition instrument; M is the averaging of operations n(t); T is scme positive number; c2 UDC: 621.391.16 Card 1/2 L 09975-67--.--- ACC NR: AR6019062 lis prediction error dispersion minimized by the proper selection h(O. The search for the extremum of functional (1) for a variation h(t) in the class of physically realiz- !able pulse reactions leads to the integral equation with the kernel depending an the tdifference of the arguments. The minimum of functional (1) is sought in a number of 'pulse reactions h(t) corresponding to the complex coefficients of the transmissions H (0) (o) 11-14111) k (1) eI-ldl iwith a given phase-frequency characteristic O(w). A physical realization requirement lof the prediction device in this case is not Introduced. 1 figure, 1 table. 3 referencr ies. P. N. s UB CODE: 09 l to 32290 SOURCE COJIjE: UR/O106/66JO00J6d9Jod6_7-Td-o AUTHOR: Nudellman, F. Ya. - ........ .. ORG: none TITLE: Orthogonal vocoder with different-width channels for trimaittlM slow-varyL% speech parameters SOURCE: EA1ektrosvyaz', no. 9, 1966, 67-69 TOPIC TAGS: vocoder, voice communication, speech tranamiasion ABSTRACT: This theoretical conclusion was verified experimentally: with a specified overall vocoder channel band, it is expedient to have individual-channel bands of different widths; wider bands should correspond to the Fourier coefficients with greater mean energy. Various sots of filters were connected to a Chebyshev-type vocoder, and eight Fourier coefficients of eech-spectrum expansion were transmitted 1 The best results are obtainable with through these filters. It was found that: (S5 the widest-band filter in the first channel, a narrower filter type being used in all other channels (2) The use of three wider-type filters brinEpabout practically no improvement; (]5j A saving of 63 cps in the transmission band reduced the speech intelligibility by 3-5% (syllable articulation evaluated by a crew of 5)- Orig. art. has, 3 tables (031 /7 SUB CODE: 09 ~ SUBM DATE: 250at65 / ORIG REF, 003 Card III UDC, 534-4 NUDELIMANq R.I. 7-1 Melting of crystalline polymers. Inv. vys. ucheb. sav.; fiz. no,1:8-13 164.. (MIRA 170) 1. Maromskly gosudarstvennyy pedagogicheskly inst1tut. MILIKAR Serge& Boris oviah; SHIWV. ?.G.. redaktor-, BIUG. T.Ta.. U- -' realiclor; d2MM-S.. takhaichasicty redaktor Claras brick block apartment houses] Zhilya dome iz krupnykh kirpichnykh blokov. Alm-4tla , Isaakhmkoe gos.izd-vo, 1956. 20 p. (Apartawat houses) (Building blocks) (KLRA 10:7) NUDSLIWP S.B. Now type of miftinistration and general Berfriftf eombim with storage for work and person4 clothes In d0dergr6und room. Adm.-byt. kemitrw ugoll. shakht no.505-29 162. (mm 17:8) 1. Karagandinskiy gosudarstwoMy inzbenerno-proyekUyy institut po proyaktirovaniyu sbakhtnogp~Btroitellstva Nara&ndiuskogo ugolinago basselm. NUDELIMAN, S.L.; SIDOVNKO, G.A. Structural parameters of samarskite. Rent.min.sy-r. no.3:66.-70 '63. (I-ffRA 17:4) 1. "sesoyuznvy nauchno-issledovatellskiy institut minerallnogo s3n ya. R Oa~ r j its* Ps s wouism ts is u as w a a V a a so It u Is id a Is 11 10 t, 4 A. 0 . & , I In fr AD Eff 1 1 a v -0 X- 00 cq~(fs -- -- --i- 0 00 -00 00 *0 91 e'b Md 41mgms" so! t b A -00 -00 w aw @s g ". Zdcod- 00 , h lksym lab. S. 1 5 M) -A ins mash. -00 Iream"t.a the qmcg&~ aw glop. (it 101"t (t A. is. -0* :0 Ch". Plaw .-so .00 -40 00 zo 00 00 .00 -.00 600 zoo '00 -zoo A 10, S 1 6 QlIALkUPfK 6% W14414,49 (IMOKAWO c f too At 4 goo IF 1 0 aw a Is a 4 9 Of to 11, 4 a a it Is It cc m it of 4 , ~Iwv *0 f a 0 0 0 0 0 * 0 0 0 - 00000004000000 0000000 : 10 000 000 0000 0000 0 0 0 gig 0 * 0 0 0 0 of 0 to 0 0 0 0 0 UNRfthysics - "tallocraphy May 52 "ftaihical Method of Determination cif a System of Paramters amd Indices or Mbiof TatMonal, Hexa- goml &A Hhoubic Crysta.Uine Systems,," S. L. Nudel- "Zhur Tekh Fiz" Vol xMj, No 5P PP 773-783 Described metb[od Improves previous deficiencies in allowing one to det rhcobic systems. It also en- a~-ales construction or equipwnt uhich may be oper- ated by an inexperiewed laboratory assistant. In- debted to A. 1. Kitaygorodskiy. Received U Fab 52. AUTHOR: Nudellman, S. L. 120-2-24/37 TITIE: st ent for X-ray "Iftttern Analysis. (Pribor dlya Rasshifrovki Rentgenogramm). PERIODICAL: Pribory i Tekhnika -.Bksperimenta, 195?, No.2, PP- 83 - 88 (USSR). ABSTRACT: It was shown by the author (Ref. 1) that it is possible to design an instrument for the analysis of X-ray pattern.. In the present article the author describes the mechanical construction and the use of such an instrument. Figure 1 gives a detailed drawing of the apparatus. The principle of its use is restricted to the analysis of -(,'-ray patterns. of simple rhombic systems, since tlie X-ray patterns of tetrahedral, hexagonal and zymmetrical lattices of rhombic systems may be considered as particular cases of -the above. In order to explain the sequence of determining the line 11~2 sin 2 01W2 from all possible indices HKL, five main 1- g1r9ups of operations are established and the sequence of operations of the instrument are discussed. It is shown that using this instrument it is possible to determine from the powder method, the type, parameters and indices of crystal lattices of cubical tetrahedral, hexagonal Card 1/2 and rhombic systems. It is also possible tc determine Instrument for X-ray Pattern Analysis. 120-2-24/3? the type, the system and parameters of subsuances from which drystals cannot be grown, zhich means that patterns may be analysed of substances which, up to now, have not been determined in such a manner. A mechanical drawing of the instrument, 1? diagrams representing the consecutive steps in determining the intercepts of various lines and one table summarising results of analysis as obtained by manipulations in any one of the five above mentioned groups are given. A. I. Kitaygorodskiy has been interested in the above described work. There are 2 Slavic references. SUBMITTED: June, 14, 1956. AVAIIABLE: Library of Congress. Card 2/2 05458 SOV/120-59-3-29/46 AUTHOR: Nudellman,_q, L. TITLE- An Instrument for the Interpretation of X-ray Photographs of Polyarystalline Substances Belonging to the Monoclinic System (Pribor dlya rasshifrovki rentgenogramm polikristallicheskikh veshchestv monoklinnoy sistemy) PERIODICAL: Pribory i tekhnika eksperimenta, 1959, Nr 3, pp 125-127 (USSR) ABSTRACT: In a previous paper (Ref 1) the present author described an instrument which can be used to interpret X-ray photographs of polycrystalline substances belonging to the orthorhombic system. The present paper describes an application of the above instrument to the interDre- tation of X-ray photographs of monoclinic crystals, To begin with Eq (1) is re-written in the form of Eq (2). where a1 = a sin 0, c 1 = c sin 0. Eq (2) is then split into Eqs (3), (4), (5), (6) and (7) which correspond to the indices hOO, OkO, OOCq hkO and Okt of the monoclinic system respectively. It is argued that these indices may be interpreted using this instrument similarly to r'ard 1/3 the same indices for the orthorhombic system whose 05458 SOV/120-59-3-29/46 An Instrument for the Interpretation of X-ray Photographs of Polyerystalline Substances Belonging to the Monoclinic System parameters are a , bi c11 Eqs (8) and(g), which correspond to h0i and hkt of the monoclinic system, differ from the analogous equations of t1ae orthorhombic system by the quantity -2h Cos P/a 1c ill Since in the instrument describ9d in Ref 1 the parameters a, b and c change their values depending on the displacement of the indices hke,, which are represented on the instrument in Pe form of moveable wires,relative to the lines 1/d , which are also represented in the instrument by straight lines intersecting the coordinate axes at equal distances, it follows that the quantity -2hF_ cos 0/ a1C1 is transformed into 2h~ cos P. The latter quantity may be found on the instrument as the difference between the ordinate of the h06 wire and the o5dinate of the intersection of the y-axis with the I/d line correspond- ing to these indices. The indices hk& may be found in a similar way. Thus, the instrument may be used to Card 2/3 determine not only al b and c but also 0, i,e, it may be 05458 SOV/120-59-3-29/46 An Instrument for the Interpretation of X-ray Photographs of Polycrystalline Substances Belonging to the Monoclinic System used to interpret X-ray photographs of substances belonging to the monoclinic system. There are 3 figures and 4 Soviet references, SUBMITTED: February 12, 1958 Card 3/3 AUTHOR:' Nudellman, S.L. SOV/70-4-4-28/34 TITLE: On the Lattice Parameters of Chrysotile PERIODICAL: Kristallografiya, 1959, Vol 4, Nr 4, pp 621-623 (USSR) ABSTRACT: Preceding communications (Refs 112) have shown how to index X-ray powder photographs of orthorhombic and mono- clinic crystals. Chrysotile is here used as an example, although the parameters were known. Pata from J.W.Gruner (Ref 3) were used for which Gruner hiiziself had found a = 5.33, b ;= 9.24, c = 7.33 1, 0 = 13 0161 The metho described earlier gave a = 9.06�, b = 6.715, c ~ 8.089 P =_6202. The 2space group is C 2h - ~iae rem.s. value of W s - d- ) is 0.0008 with this cell and 0.0019 ob Cale with Gruner's, the greatest difference being 0.0025 compared with 0.0657 with Gruner's Qell. A tab-'e of the indexing is given. There are 1 figure, I table and 7 references, of which 4 are Soviet and 3 English. SUBMITTED: October 25, 1958 Card 1/1 S/I 81J60/002/010/046/051 B01 91BO56 AUTHOR: Nudellman, S. L. TITLE: Letter Addressed to the Periodical "Fizika tverdogo tela" PERIODICAL: Fizika tverdogo tela, 1960, Vol. 2, No. 10, pp. 2637- 2638 TEET: In this "Letter to the Editor" the author corrects an error in his earlier paper (Ref-1)- In this paper the quadratic form of the tri- clinic syngony was erroneously represenicii by equation (27). Thereby, wrong values were obtained for the parameters a, b, ci ap O,of caolinite. The author gives the corroot representation of this quadratic form and obtains for these parameters: a - 5-17 A, b - 8-93 Ap 0 - 7.37 A, a - 910 46'R P a 1050, and Y - 890321. Also some other changes in the text are dia6ussed. There are 3 Soviet references. SUBMITTED: March 16, 196o Card 1/1 NUDEL I MAN, S. L. Instrument for solving X-ray patterns of of the Iriclinic system. Kristallograflia polycrystalline a,-')stances 5 no.5:819-823 S-0 160. (KIRA 13:10) (X-ray crystallography) NUDELTAIT, S.L. New graphic method for deciphering debyoograms of subotancee of cubic, tetragonal, and boxagonal oystems. Min. sbor. nc.15:10c~-119, 161. (MA 15:6) 1. GosudELrstvennyy univer3 itet, Chernovtsy. (X--ray crystallography) NUDELIMM, Samuil LIvo Ch; I-1AKEYEV, V.!,,; red. izd-va; GUROVA, C-A,, % -- - - - - t i~M-. -r e -d. ~yi (Use of the varinble scale method for deciphering powder rentgenogram,s]Raehifrovka poroshkovykh rentgenogramm metodom perememogo Diasshtaba. Y;oskva, Gosgcoltelchizdat., 1962. 83 p. NXIA 15 -.9) (X-ray crystallography) NUDELIMANO S.L.1 FRANK-KAMENEI-SKIYp V.A. Size of the unit call of cooperite. Rent. min. syr. no.2t 105-107 16?. (14IRA 16: 11) 1. Mningradskly gosudarstvennyy universitet. NUDELIMAN, --- Determination of the coordinates of atme (ions) based on the X-ray p"r data.,Rant. min. syr. no.2:108-114 162. (19RA 16111) I. LeningradskLy gosudarstvaniqy universitat. BOMIAROV, Ya., arkh-'*.;~k,,-,i , V., ar~,.,-, "EZA ~YA, 'I., arkh'tektor - U. . D e v e 1 opine n t , ~ I I, , ~-., ly " r, r ;~. ~ ~!~ f f, ~ -I I r.,~, t: r , :?- !, '' - !-~ o: L, ~ - .,. , ~~, r.11 I " r 1~ . 1, , Ek3per. -, . N -.1 . DETBAREIII~ER, M.I., 6EREPHPINNIKOVA, K.L.j 'IEHIOVSKIY, V.A.; I-rii-mail F,M., NOVIKOV, L.Z.,, LURIY--', F:-"~EN, Yj'.~ KARAKN'i A,~. fdt~:~eizaedl, KUiTR, L~I.-, --~KLC7, ~-,z KJArEDEV, F.V.- "FltTI/XH;f~OV S.C.; BONIDAR', V.G.w I P~T.; ~UNINA, 4-,V.,; OBEKOV, F.F.; NIKOI,AYFV, N.I.; yjk?,clk)LAVY T.Ye.; NUDYL'_MAN Gasificatior of mazut under pressure In a steam-axygen th13t, Gaz. pron. 9 no.11,49-5.0 164. (r-R.A 17~12) GRINSHTEY,U, V.I., inzh.; MDELIMM, V.N., inzh.,* RAKRI-Mov, I.A., inzh. YegatiVe sequence power relay. Vest. elektroprom. 34 no.8:74-75 Ag, 163* 04IRA 16: 0) (Electric relays) EWW NRi AP6030580 SOURCE CODE- UR/0413/66/000/016/0062/0062 INVENTOR: Grinshteyn, V. 1,; Nudel'man, V. N.; Ollnov, V. M. ORG: none TITLE: Contactles s overload relay Class 21, No. 184957 [announced by Chuvash Scientific Research Institute of Electrical Engineering (Chuvashakiy elektrotekhnicheskiy nauchno-issledovatellskiy institut)) SOURCE: Izobreteniya, promyshlennyye obraztsy, tovarnyye znaki, no. 16, 1966, 62 TOPIC TAGS: contactless relay, overload, RC circuit, transistorized balanced amplifier ABSTRACT: The proposed contactless overload relay utilizes semiconductors and contains an input relay unit, R-C circuits with an adjustable delay, and an output unit using electromagnetic slave mechanisms. To divide the controlled heteropolar lines galvanically and thus insure relay sensitivity to the overloads of both polarities, the relay contains two transistorized balanced amplifiers Card 1/2 UDC: 621. 316. 925. 43:621. 315. 592 45832-66 AP6030580 whose outputs are connected with the relay unit input, and the inputs are connected with the shunts set up in the lines to be controlled. Orig. art. has: 1 figure. [DW] Fig. 1. Contactless overload relay. I-Two transistorized balanced amplifiers; 2-relay unit; 3-shunts; 4 and 5-controlled lines; 6-H-C circuits; 7-out- put unit with electtomagnetic slave mechanisms SUB CODE: 09/ SUBM DATE: 21Jun65/ Card 2 124 NUDELIMAN., Ya.I.,, inzh. ------ - Stock metal trestles for the assembly of the precast reinforced concrete elements of one-story industrial buildings. Mont. i spats. rab. v stroi. 25 no,5:21-22 My 163. WIRA 16:7) 1. Trest Stallmontazh. (Scaffolding) 'IUVC-L'7AA. '- , 1- - , LL 42224. NUDELIMAN, YA. L. Integrlllyye uranuneniya ustoychivostl sterzhney, sterzhnevykh sistem i plastin. Nauch. trudy (Odes. In-t inzh. mor. flota). VTP- 7. 1945, c179-93- - bibliogr: 7 nazv. So: letopis' Zhumallijykh Statey, Vol.47, 1948. KMv IlLe L* do of ealaulatiag proper frequesoles and arLtical force to bar fromwork syetsise Lold red W-vo t*Wm*-tearet. lit-ryp 19V. 175 p. (Soirammays problemy mokboidid) (50-207731 1w".58 ;-: , 1; - Y.- ; 30803. NUDELIKAN., Ya. L. 2nd ~qO'NSHTEYN, N. 1. Novyy metod opredeleniya chastot mnogoprolatnykh balok na uprugikh oporakh, nagruzhenr,ykh sosredotor7hennymi massami. Nauk. trudy (Odes. in-t inzhenerov mor. flota), vy-p. 8, 1949. S. 38-49. 1. -, YA*- L-.--. ERLIKHP' L.- B. 2. USSR (600) 4. Elasticity 7. Elastic stability of the surface layer of some machine parts. Vest.mash., 32, no. 12, 1952* 9. Monthl List of Russian Accessions, Library of Congress, April - 1953, Uncl. to."/Yatals xlastlcity$~Plasticity 3.1 Aug 52 "1w*e Formations on the Surface of Certain Pkchlaq Parts," Ya. L. Nudel"man and L. B. Erlikh IOU SSSR" Vol 85, No 5) PP 970-974 .In the thin surface layer of many machine parts occur -compressional stresses during their prepn 'or employment. Establishes that under definite *oaditiona elaistic. or elastic -plast ic state of ,""l in the compressed layer become unstable, as result of vhich regular vaves form on the sur- face,of metal objects. States that the phenomenon 239T66 vf itability loss in the form of waves on the surface of real objects is rarely observed in pure tars, but is more often in the-form of specific ,ruptures in the surface layer. Submitted by. Aced B. L. Sobolev 12 Jun 52. 239T66 "A I'letaod of a,ua:1_i.-_n~: of For_-es '.L~C 5,~t Up t'~Ie 01" TFOrceS 11 Tr. 0 *(;z 3idr,_ Ili- raetii-_C of solving- fret luency e uati.-)ns md cc un tior - o P st- I i t ' :-I(-;' -~O ; .)f p I I - -11 - ; , " .- U successive iiano:-Ation of It is ot- te(1 tii~:t for r-, this met.~iod, -Irldc'.-, i~ ba.,~ed on findi-i,- a in,erv--.l fc,, ung-nowi ro~,-t o an tiori, is ralativel~,- simple. of Lr!~_'Iic to:.. '..-c 1',.55) SO: Sun.,"o. 713, 9 liov 55 P L I b t ' 144 if - jj) M , L , Call Hr: AF 1108825 Transactions of the Third All-union Mathematical Congress, Moscow, Jun-Jul '56, Trudy '56, V. 1, Sect. Rpts., Izdatel'stvo AN SSSR, Moscow, 1956, 237 pp. Nudellman Ya L. (Odessa). Some Problmems in the :~Aoo' Elastic Stability. General 208 SO'Y/124-57-4 -4811 Translation from: Referativnyy zhurnal. Mekhanika, 1957, Nr 4, p 134 (USSR) AUTHOR: Nudellman, Ya. L. TIT LE: On a Method for the Solution of the Stability Equation (0b odnom sposobe resheniya uravrieniv ut;~Oyj;h~Xpst~,Y-, PERIODICAL: V sb.: Issledovaniya po vopr. ustoychivosti i prochnosti, Kiye AN UkrSSR, 1956, pp 102-IIZ ABSTRACT: The problem as to whether a frame is stable wi'th a prescribed value of the load Pis solved by the analysis of a sequence of systems derived from the basic system of the slope-deforma-. _n method by step-by-step elimination of connections. Let 11 a I (P,' J! he the matrix of the n2 coefficients of the canoni~R) equat%ons of the slope- deformation method. The coefficients aij (P) are determ*1ned in accordance with the recurrent formula ( P) CL P) (k)(p) a (k - 1) (P) _ c' k jik ij ij a(k - 1) (P) kk Card 112 (i. k+1 . ..... n; k = 1, 2, n- 1) On a Method for the Solution of the Stability Equation SOV/124-57-4 4821 In order that a frame loaded with forces consistent with the parameter P mav be stable, it is necessary and sufficient that the basic system of the s lope -deformation method be stable and that CL (k- 1) (p) > 0(k = 1, n) N kk For a practical computation of the critical parameter, the range of its variation must be given from the outset; this range is later narrowed by means of successive approximations with the application of criterion (*). This process of computation coincides in each step with the evaluation of the determinant of the canonical cqua- ti~ons of the s lope -deformation method with the aid of Gauss' algorithm. The arti.cle is in line with the author's other works on the same subject [e.g., "Metody opredeleniya sobstvennykh chastot i kriticheskikh sit dlya sterzhnevykh sistem" (Methods for the Determinations of the Natural Frequencies and Critical Forces for Rod Systems). Gostekhizdat, 1949]. V. V. Bolotin Card 212 SOV/1 24- 57- 5-6046 Translation from; Referativnyy zhurral. Mekhanika, 1957, Nr 5, p 146 (USSR) AUTHOR: Nude-I'man, Ya. L. TITLE: Some Problems of the General Theory of Elastic Stability (Neko- toryye voprosy obshchey teorii uprugoy ustoychivosti) PERIODICAL: Tr. 3-go Vses. matem. s"yezda. Vol 1, Moscow. AN SSSR, 1956, pp 208 ABSTRACT: Bibliographic entry Card 1/1 HUDELIMAN, Ya.L.; OVCHIMMMV, P.P. .4 , - I Handing of beams with variable cross section accounting for shear deformations. Prykl. mekh. 2 no.1:40-50 '56. (WRA 10:2) 1. Odealkiy gidrotekhnichniy institut, (Girders) (Flexure) IMI I doktor fiziko-matem. nauk, prof. (Odessa); igii~QZAAA kand. tekhn. nauk (Odessa) Method of superpoeftion in problems on the stability of elastic systems. Isal. po teor. sooruzh. no.12:89-100 163. (MIRA .16:6) (191astic rods and wires) (Stability) VILIGA, M.A., inzh. (Odessa);.. NUDIE4LIMAN,10,1,1. , doktor fiz.-matem. nauk, prof. (Odessa) Stability of rectilinear rods with elastic longitud;ml connections. Isol. po teor. sooruzh. no.13:183-187 164. 04IRA 18:2) WMELIMAH, TO.S. Cost keel-blocks to be used in shipyards. Sudoetroenis 24 no. 6:56- 57 A '58. ( 14IRA I I . 8) (Shinbuilding--EquiDMOnt and supplies) SUIRLIMAN, U.S., inzh. .- Repair of the ferr7 4Zapoliarn7l.11 Sudestroenle 25 no-3: 47-48 Mr 159. (KIRA 12:5) (Ferries--Maintenance and repair) ~,-: ~Pu ~~ "I ;:!a~ Wt MMILIKANj.H. (Moscow) Repellents. Priroda 44 no.10:86-88 0155. (MMA 8:12) (Insect baits and repellents) NUIMLIK&N. E.N. (Maskya) Herbicides. Prlroda 45 no.3:80-83 Kr 156. WRA 9:7) (Herbicides) -410 gotteldal BS1t*#0 by Z. N. WelINKUP V44cov prircftm Nw- cow, Vol 4~, No 8, ~ug 56, pp 88-91 Considerable success has beet achieved with insecticidal baits as a mesas of controlling harmful insects. The usual methods of applying in- secticides, i.e., dusting, spraying, aerosols, and insecticidal smokes, ,are not always fully effective, and in many cases their use is inconven- A~nt since they require the removal of foods or other objects with which bwans may come in contact from the area to be treated. Insecticidal baits fisve two advantages: first, they bring the insects into close contact with .the poisons, and second, if the bait is a food, the poisonr kill the in- ,sects through intestinal absorption. The use of insecticidal baits became #wsible with the development of organophosphorus compounds -- parathion Ithicf0s], diazinon, dipterex, malathion (karbofos], and others -- which .iie used with sugar water, powdered sugar, and other sugar preparations f6t the destruction of flies, and with food products for the destruction .of-roaches. One of the more effective organophosphorus compounds is the .tw.wly developed insecticide DDVF, which has the following structural for- irdla: H3CO 0 P 0 CH CC12 "f0, -:DM U isno less toxic to flies than parathlon, b t in considerably less q6to'C-16us to warm-blooded animals and humans. Sugar-baited insecticides, however, fail to attract fruit flies. In 1952, it was found that certain protein hydrolysates had the capacity to attract insects, and when used in combination with parathion, malathion, ~aad DDVF formed insecticides which were effective against fruit flies. Ode of the more effective lures, whose action has not yet been clarified, is methyl eugenol which has the following structural formula, OCH 3 OCH3 CH2_C11 - CH2 Methyl eugenol is marked by high selectivity, and attracts only male friAt flies. The great power uf its attraction makes possible its applica- tion in small quantities and over small areas. Insecticidal baits form a simple and effective means of control of fliesAn cases where other methods of applying iasecticidzs are not prac- SLAyn ~ ;L3 36564 3/081162/000/006/110/IIT B168/B101 AUTHORS: Devirts, E. Ya., Kaplun, M. G., Nudellman, Z. N., Novikov, A.S. TITLE: Chemical mastication of natural and butadiene-styrene rubbers PERIODICAL: Referativnyy zhurnal. Khimiya, no. 6, 1962, 692, abstract 6P560 (Tr. N.-i. in-ta rezin. prom-sti, sb- 7, 1960, 3 - 16) TEXT: Methods of producing the chemical plasticizers peptone 22 (1) and rhenacits V (II) have been worked out and these substances have been synthesized under laboratory conditions. I, II.and imported rhenacits IV (III) were tested as accelerators for the mastication of natural rubber and NC-30A(SKS-30A). 1, 11 and III are effective chemical plasticizsre for mastication of natural rubber in the rubber mixer at 120 - 130 C. II and III accelerate mastication of natural rubber on rollers at 70 - 80 00. It II and III do not affect the physioo-meahanioal properties, the resistance to heat &going or the swelling of rubbers* II is an effective plasticizer for SKS-30A when the rubber Is being processed in the rubber mixer and on rollers. (Abstracter's notot Complete-translation. Card 1/1 szoc' ZZ Q S Z I U'~ AUTHORSt Nudellman, Z.N.. Novikov, A.S. 34293 _A~ S/138/60/000/005/005/01~' A051/AO29 TITLE: The Structuralizing Reaction of Polydimethylsiloxanes in the Cold Vulcanization of Polysiloxane Rubbers 6 PERIODICAL: Kauchuk i Rezina, 1960,A I\No- 5, PP. 17 - 20. TEXT: The present article is dedicated to the experimental confirma- tion of the condensation of alkoxy-derivative metals, metal-organic groups and silicon of the general farmula M(OR)n, (where M is a metal, Bilicon, etc., R an alkyl or aryl group, n the valency of M), at the hydroxyl groups of the polysiloxanes and also to the study of the mechanism of this conden- sation. It is proven that the condensation of the polyalkoxyailanes with polydimethylsiloxanes takes place only at the hydroxyl gromps of the latter. The complex-catalytic nature of the solidification of the polysiloxanes at room temperature is also shown. In order to clarify the mechanism of con- densation at the free hydroxyl groups, the effect of certain admixtures on this reaction was investigated. For example, by adding aluminum pyriaine Card 1/4 84293 S/138/60/000/005/005/012 A051/AO29 The Structuralizing Reaction of Polydimethylsiloxanes in the Cold Vulcani- zation of Polysiloxane Rubbers with butylate to polysiloxane or triethylamine (molar ratio of the amine to the butylate of aluminum, 1:1), the reaction was considerably slowed up and the nature of the formed products changed. If amine in "he ratio of 2:1 or 3:1 is added, no structuralizing takes place at all. The authors (Ref. 6) had already shown that when mixing polysiloxane rubber with alkoxy- -derivatives of many metals and metal-organic groups, rapid gelatination of the rubber takes place with the formation of high-molecular and in some cases nonfusible products and products insoluble in benzene. In that case it can be assumed that the reaction takes place at the outer hydroxyl groups of the polysiloxane rubber. The condensation arrangement 6f the hydroxyl groups requires confirmation since there are several variations of the reaction, e.g., the break in the large polyBiloxane rings or chain's with simultaneous bonding of the liberated ends with the structuralizing agent. The interaction of metal alcoholates with two types of polysiloxan- es was investigated. Table 1 shows the relationship of the aluminum buty- late quantity needed for the complete structuralizing of the polysiloxane Card 2/ 4 o4eyj S/138/60/000/005/005,/012 A,051/AO29 The Structuralizing Reaction of Polydimethylailaxanas in the Cold Vulcani- zation of Polysiloxane Rubbers and the molecular weight of the polysiloxane. The experimental procedure is outlined and the structural formulae of the reacting compounds are presented. The results of the indicated experiments point in favour of the reaction scheme of the polysiloxanes and the alkoxy-derivatives of me- tals at the hydroxyl. groups. It is stated that the reaction of polysiloxane with butylorthotitaniumlis a hydrolysis of the latter by the moisture of air to orthotitanic acid and subsequent condensation of this acid with hydroxyl groups. Another possible mechanism is the formation of an inter- mediate complex compound, metal alcoholate with the polysiloxane, as a re- sult of the donor-accepting bond of the metal atom with the oxygen atom of the hydroxyl group with subsequent detachment of the alcohol. As a result of the experimental facts, the authors claim that it is easy to explain the difference in the nature of the gels obtained from polydimethylsiloxane, aluminum butylateland butylorthotitanium. The accepted assumptions on the mechanism of the condensation reaction made it possible to use tetraethoxy- silane as the structuralizing agent in this reaction or other polyalkoxy- Card 3/4 20251 q 10 N"- 3/138/60/000/012/002/009 A05l/A027 AUTHORSt Novikov, A.S., Nudellman TITLE: The Kinetics and Mechanism of the Catalytic Reaction Between Poly- dimethylailoxanes and Polyalkoxysilanee PERIODICAL: Kauchuk i rezina, 19600 1, No~12, PP~ 3-7 TEXT: In a previous work (Ref.D the authors dealt with the catalytic reaction of structuralizing of polydimethylsiloxane rubber with alkoxysilaneq, which takes place by condensation of the latter with the hydroxyl groups of polydimethylsiloxane and separation of alcohol. In this acticle it is point- ed out that the mechanism of the reaction has been only slightly investigated and it is further suggested that the kinetic3 of the reaction be studied during the period from its start until the moment of the spatial lattice formation. Such an investigation was carried out by measuring the elasticity growth of the benzene solution of the CKT (SKT) rubber after it had been mixed with the catalyst and the structuralizing agent in a spherical Hepler viscosimeter. It was shown that the elasticity growth was determined-only by the growth of the molecule. Fig.1 shows that the growth process of the Card 1/8 20251 8/138/60/000/012/002/009 A05l/A027 The Kinetics and Mechanism of the Catalytic Reaction Between Polydimethy1ril- oxanes and Polyalkoxysilanes elasticity for the system 15% solution of SKT in benzene-tetraethoxysilane- catalyst (0-5 9) is not uniform. The shape of this curve is explained by the many-stage type of reaction of structuralizing (Ref. 5). It is suggest- ed that the initial part of the curve is determined by the first stage of the reaction which consists in the formation of the intermediary complex compound of one molecule of the catalyst with one moleculu of the hydroxyl group of tYe polydimethylsiloxane and one molecule of oxygen of the tetraethoxysilane molecule: CH H H 0- 51 0-- Si U113 U113 R OR Sn'..O- Si - 0 Ult (2) This complex is then regrouped and E, new siloxane bond is formed, a catalyst molecule is separated off, probably in the form of a complex with the separa- ted alcohol molecule: Card 2/8 20251 S/138/60/000/012/002/009 A051/A027 The Kinetics and Mechanism of the Catalytic Reaction Between Polydimethylail- oxanes and Polyalkoxysilanes ME CHA OR R - 0 - Si 0 - Si 0 - Si - 0 + Sn + ROH (3) CH., OR 3 The latter stage of the reaction correspondo to the part of the curve paral- lel to the abscissa axis, It ia not the induction period, since the reaction i3 taking place although not causing an increase in the molecular weight of the system. Other confirmations ~f the intbraction with initial formation of a transfer complex were obtained from infrared spectra of the system (Figs.2,3). These graphs prove that thern i,s no induction period necessary in the formaticn of the c_omplex in the given syst(am, The second stage of the reaction increases the molecular weight to twice the amount of polysiloxane; ~fl (') R R H CH 3 \11, I . 3 - 0 - Si - 0 - 31 - 0 t S11 + 0 - 3 i - 0 (7) 1 A I Card 3/8 al 3 OR CH 3 S/138/60/000/012/002/009 A051/AO27 The Kinetics and Mechanism of the Catalytic Reaction Between Polydimethylsil- oxanes and Polyalkoxysilanes possible,i..e., molecules where the donor-ac"ptor bond with one atom ef silicon w 'ould not. significantly change the d*ensity of the electrons in the other oxygen atoms. The reaction mechanism of catalytic condensation of polydimethylsiloxane with tetraethoxysilane and other polyalkoxysiloxanes is confirmed on an example of the gelatination of a benzene solution of SKT in the presence of a polyethoxysiloxane-type structuralizing agent, where n 10: OR OR OR RO - Si 0 - Si 0 - Si - OR (9) (Fig-5) I I i OR OR /n Un There are 5 graphs and 5 Soviet references. ASSOCIATI.011: Nauchno-issledovatellskiy institut rezinovoy promyshlennosti (Scientific Research Institute of the Rubber Industry) Card 5/8 20251 S/138/60/000/012/002/009 A051/AO27 The Kinetics and Mechanism of the Catalytic Reaction Between Polydimethylsil- oxanes and Polyalkoxy3ilanes Fig. 1 Viscosity increase in a 15 lj~'j 9 4 solution of SKT in beftzene with te- traethoxysilane and catalysts: 1 - dicaprinate of dibutyl tin, 2 - dis- 0 tearate of dibutyl tin. > > 43 W (D 14 time, hours C ard 6/8 n0251 r S113 60/000/012/002/009. A051X027 The Kinetics and Mechanism of the Catalytic Reaction Between Polydimethylsil'- oxanes and Polyalkoxysilanes 0 0 ,a r +in]H INI JIM WiHid I I II 100 80 60 46 V 0 c, r" ~- C. '.S -o -0 0) tn cz) c3 c);; ell cl~ c') Nc" N ~) ~)"f V CAr Fig.2 Infrared spectrum of polydi- inethylsiloxane with molecular weight of about 4,000. 0 F_ C.3 ~3 Ln 5 ci F-Sm 11) 41~ -1" f17 Fig-3 Infrared spectrum of a poly- dimethylsiloxane mixture with an 8% tetraethoxysilane and 2% di- J caprinate of dibutyl tin immediate- ly after preparation. Card 7/8 20251 S/130/60/000/012/002/009 A051/AO27 The Kinetics and Mechanism of the Catalytic Reaction Between Polydimeth:rlsil- oxanes and Polyalkoxysilanes 0 0 43 > Cd $4 ZJ 14 5 - g 40 0 Card 8/8 Fig. 5 Viscosity increase inal%4 solution in benzene with polypthoxysiloxane and catalysts: I- dicaprinate of dibutyl.tin, 2- distearate of dibutyl tin. time, hours S/6' 1/6 D244/:)302 OH .--Nudel'Man, 7.. 1,1. TITLE: On the mechanism of cold vulcanization of poly t; ~11 oxaie rubbor SOURCE: Khimiya i prakticheskoye prime-en-1-ye kikh soyedineriiy; trudy konferentsi-i, no. 6: diskussii, resheniye. II Voes. konfer. p0 prim. krei-.moorj,!-. soyed., Lon. 1958. AN SSSR, 1961, 210-213 TEXT: The author studied the kinetics of 'gelation. of rubber-ber,zene solutions to obtain a scheme ~'or t'..e of catalytic formation of structure in pol.,,dime-uhyl The structure formation is promoted by tet.raethoxy8iiane 1;-4mi- -Lar compounds. The process was studied by determi-in', viscoji-.--us of the solution. It was established that organo-tin LLC;-~ on the hydroxyl group of polysiloxane rubber in such a .L; o cause a shift of the electron pair from The 0 atoz: ~o -u-c: -,n LI-60M, Card 1/2 "`/6 6 1/6 G/Jot, On the mechanism of ... D244/D502 followed by transfer of an electron from the H to 0 When a donor-acce,)tor coordinaton bond is for::,.ed 4 Q of tetraethoxysilane, a redistribution of electro!-. 4n -le latter, leadin6 to transfer of the reac~.Jvu c e, molecule. Thi6 prevents the reaction of tetraothoxy!3J.*.'L~11U :.'1:) 1C;-~ with r,,ioro than ono moloculo of thu oatulyot. It L~I-Lt t)x polymerization begins immediately after mixinE; t1,Q vi"'ich n 4 would not be the case if the multi-step reaction mecha -.)licable. 2hus the mechanism pro posed by N. IJ cov' ) is not correct. To obtain formation of a str-_cture, t.".e r u b b e r was heated with 1.5c;~ of benzoyl peroxide. In the diL;cL*._--s4_Q.)~-. w'-Ich followed Baranovskaya pointed out that her mechanism wa2 --ropo-ed .Lor bulk vulcanization, whereas the author's mechanism u1j.;1it~d :)-,-,D- bably only to the polymerization in solution. "-'here a-re 2 fi6-~r-es. _133JCL,';I0Y,: .".auclino-issledovateilskilr instit,t rezJnovoy ~)romyoh~ ~ P., lennosti, Eosk-va (Scientlllc Re---earcl- L.--.1,tate Of the Rubber'Industry, Moscow) ~Iard 2/2 23764 S/190/61/003/006/007/019 B110/13216 AUTHORS: -Nudellman, Z. N., Sviridova, A. V., Novikov, A. S. TITLE: Synthesis of linear alumosiloxane polymers by silanol condensation PERIODICAL: Vysokomolekulyarnyye soyedineniya, v. 3, no. 6, 1961, 641-645 TEXT: Since no method han been described for the preparation of linear metallosiloxanes of preset struoture, the authors tried to synthesize these polymers by appl ing silanol condensation (Ref. 1: Kauchuk i rezina, 1960, 1 ~. This condensation takes place on mixing organo- silicon compounds containing the silanol group Si -OH with alkoxy derivatives of metals, organometallic groups or silicon (e.g. aluminum alcoholates, dialkoxy derivatives of the monoacetylac,,etonate, other aluminum complexes, alkoxy derivatives of titanium, tin and iron, etc Separation of the alcohol and formation of the metallosiloxane bond tak; place under very mild conditions according to the following scheme: V OR H 7R Si -0 .- M Si -6.. M ;P Si-O-M 4-ROH. For this reaction the authors Card 41/7 23764 s/190/61/003/006/007/019 Synthesis of linear alumosiloxane.,, B110/B216 used a bifunctional aluminum alcoholate with 2 reactive alkoxy groups, i.e., an alumintim butylate-acetoacetic ester complex: CH CH OR' 3 ~., , A# 1-1 / C 0 Al C4a90 Oc 4H9 Oving to its uniform electron density distribution over the ring, this complex ifj more resistant to hydrolysis than the alkoxy groups. On treat- ment with water, the alkoxy groups are hydrolyzed off, and condensation yielding a linear alumoxane polymer takes place. A similar behavior was to be expected in ailanol condensation. Polydimethylsiloxane (molecular weight 3,000-50,000) having silanol groups at the ends of the chain was used as reaction partner. The two components were mixed in benzene in the required ratio and the polymer formed then precipitated with acetone. The polysiloxane molecules of high molecular weight determined the basic Card 2/7 23764 3/190/61/003/006/007/019 Synthesis of linear alumosiloxene... BIIO/B216 properties of these modified alumosiloxane derivatives (RAS), which are modified by aluminum links. The time required for the reaction is directly proportional to the molecular weight of the polydimethylsiloxane derivative used. A comparison of the viscosities of MAS (Table 1) in toluene and solutions of the initial siloxane indicates the increased molecular dimensions of MAS. Their greater hardness is due to the formation of donor-acceptor bonds between the aluminum groups of different polymer molecules and to multiple coordination of the aluminum atom. The oxygen atcm in the alkoxy group of the acetoacetic ester has the greatest electron density and is able to form complexes. For.this reason the ethyl and octyl esters of acetoacetic acid , having different complexability were used. Hardness was determined thermomechanically according to Kargin in the temperature range -600C to 2000C (at a rate of-40C per 10 min). The extent of intermolecular interaction is mainly determined by the relative number of aluminum links in the chain. The properties due to the aluminum links are more marked if the initial oiloxane in lower-moleoular. The Al content of MAS depends only on the molecular weight of the initial siloxane and not on the ratio aluminum complex/ailoxane (26,300 -1-99 % Al; 3160 -3.61 % Al). The greater hardness of the second Card 3/7 23764 S/190/61/003/006/007/019 Synthesis of linear alumosiloxane ... B11O/B216 polymer is due tn its higher Al content and the numerous Al links. The above-stated comDositiori is confirmed by the findings that the polymers are completely soluble in benzene and toluene, flow under pressure, melt on heating and sinter at high temperatures. The residual compression is also characteristic of structureless polymers. This is corroborated by the viscosity (Table 1) and the presence of Al in these polymers. Acetylacetone forms very stable acetylacetonates with the Al of many aluminum compounds, splitting the Si -0 -Al bond, On treating MAS with excess acetylacetone at room temperature (Table 2), the initial polydi- methylsiloxanes were regenerated, which shows that condensation did not take place: Si-OH +HO-Si Al 0 Si-O-Si + H 20. Heating of MAS to > 2000C leads to reversible softening, which together with its resistanae to pyridine, is not in agreement with the presence of a large number of complex bonds H N/ V SiA ...Al ... O-Si This method can also be applied lit the u~rntheeie of linear polymers modified by titanium, tin, Iron, etc., in the given order, their properties Card 4/7 23764 S/190/61/003/006/007/019 Synthesis of linear alumosiloxane... B110IB216 depending on the metal alkoxide used and its ratio to the polysiloxane. There are 1 figure, 2 tables, and 3 references: 2 Soviet-bloc and 1 non-Soviet-bloc. ASSOCIATION: Nauchno-issledovatellskiy institut rezinovoy.promyshlennosti (Scientific Research Institute of Rubber Industry) SUBMITTED: July 25, 1960 Table 1: 'Viscosity of toluene solutions of MAS in initial polydimethyl- siloxane derivatives. a) Mol-wt. of initial polydimethyleiloxanes; b) polydimethylsiloxane; c) concentration, g/100 ml; d) given rate; e) KAS; 1) viscosity at 2000; 2) viscosity at 250C. Card 5/7