SCIENTIFIC ABSTRACT KROTKOV, B. P. - KROTKOVA, YE. YE.

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CIA-RDP86-00513R000826630010-5
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December 31, 1967
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SCIENTIFIC ABSTRACT
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KROM, D.P.; AW 6n the distibution no.6tll44-1147 Js goologichaskikh nauk Akadmil nauk A.Ve Betakhtinym. (Ural Mountains--Bauxite) KZKL R, H.M.,.otv.red*; SMOV, S.I., red.; HAS111AVIYA, G.H., red.; VORONINA, A.M., red.; OWLIVICH, I.Y.. red.; ZASUVSKIT, I.I., red.; KOZLOV, Y.N.i red.; LARIN, D.A., red.; LYALIKOV, V.I.. red.; KAMAYHY, I.I,, red,; NIKISHOV, R.I., red.; RAUSH, V.A., red.; SAHOYLOV, I.I,, red.,, SLAXOVA, Te.A., red.; M'ROTZV. I.F., red.; SCHASTOT, P.M., red.; TV20CHKINA, V.A., red.; KRIZLI, T.G., red,-, MISHUYEVA. M.P., red.kart-, DTUZMA, A.M., red.kzrt;'KRO`TXOV, B.S. red.kirt; MHXTATSNVA, L.N., red.kart; PE OVA, Z.F., red.1mrt; POLY,U1.~L'-TA. L.A., red.lmrt; SHRONOVA, V.A.. red.kart; YEDOTOTAO N.I., red.kartj MISOVA, M.P., red.kart; CIMWTMMVA, L.N.. red.kart; BUKHANOVA, H.L. takhn.red.-. KUZ=SOVA, O.L., takhn.red.-. NIXMAYBVA,, I.N., tekhnered, (Atlas of the U.S.S.R. for the secondiry school; course in economic gpo- graphyl Atlas SSSR dlia arednei shkoly- kurs okonomichaskoi geogrefilo a Glav uprav.geodez. i knrtografli H-va geol.1 okhrany nedr SSSR, 30 P0 O(Geography, Sconomic-Haps) (MIRA 13:12) I'.'ZNBZRG, I.R.. red.; POrXOV,_-B.S., red.kart; IrOXIILA, T.A.p red.kart; CMUVERWYA, A-.D-.. -i;;a.k-nr't; BUIWNOVA, A.T., tekhn.red. [World atlas) Atlas mira. Moskva. Glav.upr.goodox. I kartograf. H-va gBol. i okhrany nedr SM, 1960. 64 p. WRA 14:1) (Atlases) ?!o,tye standartY rin churnye mntally. (Vc.~stn. Mwsh., 7' ..ew standards for ferroui metals. SO: 'Marrifactliring, and Rechanical Yngincerini, In the "'~wtio?t Union, Libriary of Congrpss, 1953. i ye standorty na rrvtallicheskie p lifabrikat.,,, 1 17!"-Ilta. 'Imr (lest.n. Mash., 1950, no. 6. p. 69-70) ..ew stzk-darc4s for motallic half-finisheid prnd-lcts and articles. LIC: V'4.VL 5!~: Ilanufactiming and Mechanical Engineering in the .30vict Unlin, Library of Convress, 1953. , ! " ~;, ~ '.I..17 . . . . I . tiumdart na st.rill r)bykrjnvewjqj,o i(achc.5tv:,. (Ve:--,t.,I. 1~,rop Ito. 8 , p. ;2-74) !'cw standard for ordinary steel. LLG: SO: Manufacturing and Mechwiical Engineering in the Soviet Jnion, Library (if ConFressi, 1953. ovye standarty. (Ifentn. Manh., 1950, no. 10, p. 71-73) Nva standtirds. I LjG: T"'4.714 SO: Vanufacturing and i-,echanical Lnginecring in tile ~,o,,Jct Jilion, Library of Con,--ress, 1953. 9- 1 - , ~ - - - -li-- - _ i U. T. -- - -- "New , I lltandard3" (Tech. Info) Vest Mash, p. 33, SOP 51 .io-rfi st,7,ndert nr, konstruktsiontmi'i kalibrovmnuiu otevll. (Vestri. 1951, no. i, p. 36--~8) The new standard for gaijged structural steel. DLC: IN'4-14 SO: -manufacturing and Oechanical Engineering in the L;oiiet Jriion, Library of Congress, 1953. 711. Ull, V 1- 11 'D 1~ . ; 1 10- 6 , . . Standard--, Enrineering Ifew standards. V03t. mash. 31, 11c). 11, 1951. 9. Manthly List of Russian Accessions, Library of Congress,September 1952 7jp;3, Uncl. OWN 1L.iG12i ov, D. 'j. USISR/Electricity - Standards Mar 52 Transmission Lines Welding Electrodes "New Standards on Steel Parts for Electrical Instal- lations," Engr D. V. Krotkov "Elektrichestvo" No 3), pp 75-77 Silmmarizes and discusses the following new standards: (1) GOST 5800-51, "Stranded Steel Conductors For Overhead Transmission Lines," replacing OSTAM? 8173/1001; and (2) GOST 2523-51, "Steel Electrodes for Are-Welding and Fusing," replacing GOST 2523-44. 240T37 . , I T Y, (IV 1 7 ~ . *1 . I D. ~". Otcol, Structural New fAanIni-d Ifor quality carbon rtriietural st,ol. Avt. tra--t.. no. 61, l)52. t 9. Monthly List of Russian Accessions, Library of Congress, November 1~,5~ IM, Uncl. r7;ICT ) -0 1 -1 . ) Ent; . IRUT F 4 GV, D. % ., EnC. Electric Welding New standards for electric weldinr equipment. Avto-. ~Ielo, 23, No. 7, 1952. 9. Monthly fist of Russian Accessions, Library of Congress, Nr~verbpr 1952 19", Uncl. IJ I , , " ... ~ I ~-, -40'~1", " I I I . Railroads, Rails Stan~ards for liCht rails. Torf. prom.., 29, No. '--, !~,,1,2. 9. Malithly LAst or Russinn Accenstons, 1,11)rnry of CongrenG, A!,rII, 1~~,~2 J*~S, Uncl. 1. KROTKOV, D.V. EKG. 2. USSR (600) 4. Steel-Standards 7. New standards. Vest. mash. 32 no. 7 1952 9. Monthly List of Russian Accessions, Library of Congress, F*bvuary - 1953, Uncl. 1. Y, i C ~ T.'r:0, VP D. _'T. , Unge - 2. u:;sR (6oo) 4. 3-.eel--46cifications 7- E-3tablishment of standard trade marks of carbon steel for impor- tant welded construction., Avlog. dalo, 24, No. 2, 1953. 9. Monthly List of Russian Accessions, Library of Congress, April, 1953, Uncl. - 1 -1 - --:1- -1-4- -, 1. KFOTKOV,, D. V., Eng. 2. USSR 600 h. Nickel Alloys - Standprds 7. Standards for nickel alloys and steel# Vest. mash) 33, No* 1. 1953, 9. Monthly List of Russian Accessions, Library of Congress, April - 1953, Uncl. - - ~-, I , .1. 1 . . &U-Mucz . New standards. Yest.mash. 33 no*4:88-90 Ap '53. (XLRA 6:5) (street railroads) PIIOTKOY, D.Y., inshener. New standards. Test.mash. 33 no.10:107 0 '53,, (KWA 6*o) (Steel-Standards) Card Pub. 3.50-8 Authors I Krotkov , D, V oi'Allkx- ""- Wv,, Title Ilea standnrd3 Pcriollicn:. VcA- Ix63h- 9) 99-100, SOP 1954 Abstract Tho folloAng now standard specificationj for rolling stock shafts arc jvun: (GOST 1,08-53) rolling stock shafts for vride-gage rail; (CWT 3281-53) locomotive shafts for wid,2-gaEc rail; and (GOar 6690-53) mll- ing stock rhr-.ft3 made of cajxbori steel. InAitution : ....a Subrutted : 0 .0 00 MsR/Enginaering - Standards Card t 1/1 Authors I Krotko.v,,,.D._V,.., Engineer Title Now standards Periodicel. 2 Vest. Mash., 34, Ed. 6~ 104 - 105, June 1954 Abetract The following new standards are announced: GOST 4728-53 Axle Manufacturing for the Rolling Stock of Broad-Gago Rau- roads. GOST 2052-53 High-Quality,, Hot-Rolled, Spring Steel. Technical Specifi- cations. Conments are given on the differences between the now standards and the old and the reasons for the changes, Institution i ... Submitted : ... KRCTKOV,D.Y., inthener New standard welding materials. Svar.proisr. no.2:29-30 Y '55. (Welding--Standards) (Steel, Structural) (MMA 8:9) IROTKOV, D.V., inshaner Now stgndards and N*tW~ of testing welded joint@. Byar. PrOIST. nO-4: 32-33 AP '55- (HIM atg)* (Welding-Testing) IRMOF, D,Ve, Inshener, Md&WdftPftbSVAW Now standards. Transp*stroi*5 no.e:26-27 0 033. (KIAA 9:1) (Reinforced ooncrets--Standards) (Railroads--Rails) LVEASIN. Ta.D.. kandidat tekhnichaskikh nauk; BICRO, P.P., professor, doktor takhnicheskikh nauk, BMSHTBYS. M.L.. kandidat tekhnicheskikh nauk; GRIMHOZOT, P.A., starshiy nauchnvy sotrudnik; GLIMM, inzhoneri DAYIDOVSKAYA, Ye.A., kandidat takhnicheskikh nauk: TUCHIN, P.M., inshenerl URNMIN, N.I., kandidat fiziko-matematicheskikh nauk-, IYANOY, D.P., kandidat takhatchaskikh naul; XHOROZ, L.I., inzhener; KOBRIF, M.N., kandidat takhnicheskikh nauk; KORITSXIY, V.G., dotsent; TCff 14 - inahenar; KUDRYAVTSXV, I.Y.. professor, daktor takhni- chssilkh nauk; KULIKOV. I.V., kandidat tekhnicheskikh nauk; LEMOT. V.A., kandidat takhnichookikh nauk; LIKINA, A.F.. inthener; NATVmY, A.S.. kandidat takhatcheskikh nauk; MILIMAN, B.S., kandidat takhnicho- skikh uauk; FAVLUSHKIN, N.M., kandidat takhnicheskikh aauk; PTITSTN, V.I., inzhener (deceased]; RAKOVS1IT, V.S., kandidat takhnicheskikh nauk, RAKH HTADT, A.G.. kandidat takhnichookikh nauk; RYABCHINKOV. A-V.I professor. doktor khimichaskikh nauk; SIGOLAYEV. S.Ya.. kandi- dat tekhnichaskikh nauk; SMIRTAGIN, A.P., kandidat takhnicheskikh -nauk. SULIZIN, A.G., inshener; TUTOV, I.Ye., kandidat takhnichookikh nauk, XHRUSUCHOV., M.N., professor, doktor tekhatchookikh nauk; TSYPIN, 1.0.. kandidat takhnicheskikh nauk.- SHAROV, M.Ta., Inshener; SHMIMAN. Ya.I., dotsent; SHKILIV, S.A., kandidat takhnichaskikh mauk; TUGANOVA, S.A., kandidat f12iko-matematichookikh nauk; SATUI, B.A.. doktor tekhnicheakikh nauk, redaktor; SOKOLOVA, T.F., tekhnichaskiy redaktor (Machine builder's reference book) Spravochnik mashinostrottelia; v shesti tomakh. izd-vo mashinostroit. lit-ry. Vol.6. (Glav. red.toma I.A.Satell, Izd. 2-os, ispr. i dop.) 1956. 500 p. (KLRA 9:8) (Kachinery--Construotion) KRDTKOV, D.T.. inzhaner. Now engineering standards. Transp.strol. 6 no~3;30 Kr 156. (Standards, Engineering) (MMA 9:7) r T- IROTKOV. D.V.. insh. Now standard for designating welded joints. Transp.strol. 7 no.6:23 Ja 157. (MIRI 10:11) (Welding-Torminology-Standards) _L 2870-66 XWT(A)/?BD/LW(1)/=C(k)-2 RB/OW/~4S-2 Acc nt: Ar5o26722 SOPCE CODEt UWO.14V65100810031ID41104 V. D.; Lastochkinp V. P.; Stankevich, K. S. AUTHOR: Kratikove ORG: S.Cj_CAt_jfjC seMhj _,titute _~ _ jL (Naut:hno-issledovatellskiy radiofizicheskiy InstitiA pri Gor'kovskom. univers'iterte) TITM': Measurement of the absorption of decimeter radio waves in the atmosphere BOMOE: IVUZ. RadightikiLl Vs 8p no# 5., 1965., 1044 TOM110 TAGS: radio astronou , atmospheric radiation, radio wave absorption, deci- ._ _. ~ _ ~__W meter wave ABSTRACT: The vertical distribution of the tetWerature of the Intrinsic radiatiw- of the atmosphere was measured at wavelengths 16-3, 2B.9, 21, and 30,6 cm in the altitude range from 5 to 30'. The directivity patterns of the antenna system at half-power level were 241, 301, 35'., and 4o,. The brightness temperatures of the atmosphere were determined by comparing the antenna temperatures for sipmale fNa the atmosphere with the discrete source Caosiopacia-A. The total absoi-ption at the zenith could be determined from the measured and theoretical values of the antenna temperature so a function of the altitude angles The total absorption in the zenith direction was found to be 0,,66 db 115% ' for all temperaturesp come- Card tm 621.371.166 -L 78,,o-66 ACC HR: Ap5o26722 ponding to a zenith tempemture of 4.1K for the reAUo emission from the at=osphered Orig. art. -has t 2 formulas. (02] SUB CODE: 0.3,17/ SUBM DATSt 23Apr65/ ORIG REFt 002/ ATD PRESS: Card 2/2 KROTKOT.--I.N, Sensitivity of electric measuring networks. Trudy VNIIN no.6: 28-44 149, (MIRA 11:11) (Blectric networks) (Blootric measurements) UM/Inglneering - Circuits, Z]ectrjc Oct 49 Measurements, Electrical "Sensitivity of Electrical Measuring Circuits,P 1. X. Krotkov, Cand Tech Scl, All-Union Sci Res Inst of Metrol Imeni Mendeleyev, 4 pp "Zlo~ktrlcLestvo" No 10 Florr.u.!As obtained express sensitivity of any linear e,ectr!cal circuit relative to a change in one of Its impedances in dependence upon (1) general parssm tte-rs f the given circuit (coefficients of aggre- gate matrices) and (2) one of the quantities cha acteriziag the action of the current source (emf, Im 150T22 USSPAngineering - Circuits, Electric Oct! 49, (Contd) voltage, current, pover in the regulated element). Gives examples of sensitivity calculations vhen electrical measuring circuit is considered. a six- terztinml netwrrk. 150TM ussivi Blectri city - Mmsuring Oct 51 Instruments Sensitivity "Calculation of the Maximum 8ensivity of Electric Measuring Circuits," I. N. Krotkov, All-Union Sci Res Inst of Metrol imeni Mendeleyev "Elektrichestvo" No 10, Pp 59-66 Considers a balanced bridge circuit and cal- culates its sensitivity to a relative change of resistance in one of the arms. Given a 20JT47 USSR/Electricity - Measuring Oct 51 Instruments (Contd) number of bridge elements, determines the nec- essary and sufficient conditions for obtaining max sensitivity. Submitted 30 Aug 50. 201T47 USSR/Electricity - 1kridee Circuits Oct 52 "Classification of rx! and AC Bridge Circuits," .1. N. Krotkov, Cand Tech Sci, All-Union Sci Res Inst imeni Mendeleyev "Ile)=ichestvo" No 10, pp 60-67 Discusses some general facts on bridges ccm- posed of linear elements and used for the meas- urement of the elec circuit parameters (R, L, X,, and C). Gives a nev classification and sys- tea of symbols of these circuits vhich makes possible their analysis. Submitted 24 Ifty 52. 231M KROTKOVS- 101. -- Calculating the MXlmw sensitivity of certain electric measuring circulta. Trudy VIIIIN no,14162-8) '53. (MIRA 11:6) (Electric measurements) IRMOV, I.N. - .,.. - ~ 1 r., 1. Inductance-unit primary standard of the U.S.S.R. Trudy THIN no.31:19-20 157. (KIRA lial) (Inductance-Standards) KEGTKOV, I.N. - .- v ~ I Reproducing the electric resistance unit by means of the standards of inductance and frequency units. Trud7 VNIIN no*31:21-31 157. (14IRA 11:11) (Mactric capacitance--StarAarde) XROTKOV, Capacitance-unit primary standard of the U.S.S.R. Trudy TRIM no.31:36-43 157. (MIRA 11111) (Blectric capacitance--Standards) XROTIKOV9 I.N.; GUSHCHINA, T.M. Method for precioe checking of condennera with difforent initial ca- paoitanco ratinge. Trudy inBt. Kom. stamd., mer i izme prob. no,39:93-104 160. (Mm 14:3) (Electrio wadtm.-oTesting) ---IMTKMj- N.; GUSIICHINAp T.M. Determination of eondenser parameters by "am of docade'eaq)arisons. Trudy inot. Kom. stand.$ mer i izm. prib,'no.39:105-118 160. NM 140) (Electric capaoitorg*-Testing) KROTKOVI I. N. Doc Tech Sci - (diss) "New methods and apparatus for precision measurements of Inductivity, resistance, and capacity." Lenin- grad, 1961. 27 pp with diagrams; (Leningrad Polytechnic Inst imeni M. I. Kalinin); 250 copies; free; bibliography at end of text (23 entries); (KLI 7-61 sup, 229) KROTKOV, 1,N# [Now equipment and techniques for precise manuroment of inductance, resistancotand capacitance; author's abstract of his dissertation for the degree of doctor of technical sci- ences3Novye metody i apparatura. dlia tochnykh izmerenii in- duktivnosti, soprotivleniia i emkosti; avtoreforat disserta- taii na soiakanie uchenoi stepeni doktora. tokhnicheskikh nauk. Leningrad, Leningradakil politekhnichookii in-t im. M.I.Kali- ninal 1961. 26 p. (MIRA 15:12) (Electric measurements) S/196/62/000/007/001/007 E194/E435 AUTHOR: Krotkov, I.,X, TITLF'.: Accurate methods of measuring the admittance component of elements of linear electric circuits PERIODICAL: Referativnyy zhurnal, Elektrotekhnika i energetika, no-7, 1962, 7, abstract7A29. (Tr. Konferentaii po avtomat. kontrolyu i metodam elektr. izmeriniy, 1959 (Proceedings of the Conference for Automatic Control and Methods of Electrical Measurements, 1959) Novosibirsk, Sib. otd. AN SSSR, 1961, 53-62) TEXT: New methods are proposed for: 1 - preliminary balancing of a T-circuit consisting'of L and C by the simultaneous application of short circuit and no-load conditions to individual sections of the circuit; 2 - the connection and balancing of an X-circuit of a capacitance bridge. After simultaneous solution of the equations obtained for the different processes of circuit balancing the first method may be used to obtain a simple relationship between the measured impedances, the main bridge parameters and a single "residual" parameter which in Card 1/2 s/196/62/000/007/001/007 Accurate methods of measuring ... E194/E435 easiLy calculated from the dimensions of the conductors. The now X-circuJt capacitance bridge differs from usual capacitance bridges in the method of connecting the object to be measured, in the system of screening the bridge and the balancing arms, in the balancing sequence and in the use of conductivity decades tising elements of special construction (not wire wound). The bridge can be balanced rapidly and can measure all three p.,7-ameters in the frequency range up to some megacycles to an accurncy of 0.01 to 11'. In addition, double X- and T-circuits were investigated. The double X-circuit bridge can be used to determine the parameters or a measured object in the form of a quadripolo circuit. Abstracter's note: Complete translation. Card 2/2 1.11. -- -3il' , tnorJ-i6T,'-f!j,;-'p,,aent for amirate measurp-v~*.q of -tmractaristics of dield~-.lrks In rndlot oadeziating frequency range. 1=.tekh.no. 4,1,4-59 Ap lt4. " J!, Ii '~ -; 7 -.7 ) I JIP6019'-~ 570 A 0 UY till ~4nov- CE COD Ril -- &-R-/ 0 1 Dzharak - --. - - R: (Doctor 0 ORG: T 01 0 -lone K~otko, tech., C 4.1 00031000, 1 Ole 71 11 1 n'a !~Cheako M 43OU'RCZ' a Problems 0 f M 'Tzmerj to, '~trojo n4 JY4 tek hn I)Ca no. b1ology and -17 ~11- etrol, m e d Ic 1'no 1966t 3-6 0419. bia e ?U-,kp 9y 0 b1ol Jagj'c~ Men t 0 9 Ad SITRAC- S"n'de'j 4-14 r~s Pa'r t 1 :42 Inedic.1 t"oe*'b'04 10 130 01. 1 Cular n eed equ. ""Zica-i Flutorn tic a 4 a 1 1 iPment Lett n felt f -P r t 1) 0110 Control L :'j'. as veal # reglo' Of AA-a.P d a r d rc-0 t 4 n d n r,, 48 f Strati luj're crit On !I tha or ZA.4 medl ca rr, " " . de.91 g] and regUj-.--t'--1'~ ~e t eria In di lin #3 artj r 11 Phyo- I. rq ri 1; diff -L ca I agnoola IcIal on Of p bjo~_ ed 4 ile cul t; t '0 Par"eters b g' Th e treat, Organ, 11,4( p , ever-expan,,no achieve e ng, y " e,4 cesSed at. 4 m ass vithot red v, and Preve hy a I C a'L of Otandard Is and use Un I ve th alaxilzu nting/ for th Of rsall)r m ;c nad chenIcal C4, quant1t ,,e de accepted ed Monsurerlmen t to le I opjne,, t atIvel Y evalu ent funct, and ated~-- Sp as vell onall y establi, 1JDC: rel. hten t of 'In -j 38o the ted t- be c'L" jl,,.,ch f the bas and built c0DZt o6/ BUD" IRO MCARDLOV, -PITROS TAX, 0, doktor tokhnichoskikh rLAuk (e,.XhALr ']coy) TOROBITSY, Tu., Inzhener (g.xhar'kov) Letters' and suggestions, Strol-mat. 3 no-1:31 J& '57- (KLRA 10:3) 1, Predeedatell zavodekogo komitsta zavoda im. Borkova (for Krotkov) (Serpentizites) (Rewards (Prizes.etaJ) 5/196/63/000/001/034/035 F,194/EI55 AUTAORS: Krotov, P.V_., Boldov, M.Ye., and Shvionov, M.V. TITILE: All investigation of silicon rectifiers PERIUDICAL: lAeforativnyy zhurnal, Elektrotekhnika i energetika, no.1, 1963, 11-12, abstract I L,46. (Tr. Taentr. n.-i. in-ta mekhaniz. i energ. lean. prom-sti, v.34, 1962, 53-69) TEXT: lit addition to their known advantages, silicon rectifiers have good resistance to shock and vibration so that they are particularly suitable for narrow-gauge rectifier locomotives for timber haulage. -in 1960 TsNll~JE developed and made a narrow- gauge electric locomotive type 3Y,'y 74-01 (EKOU-4-01) having silicon rectifiers and meeting the requirements 3tipulated.for the timber and peat industries. The locomotive power is 150 W, the coupled weight 18 tons. In developing the locomotive the silicon rectifiers were tested and recommendations were made to the factory manufacturing the rectifiers. The following conclusions are drawn from tests on silicon rectifiers type CJRK-100 (PVK-100)4 Card 1/2 An investigation of silicon rectifiers S/196/63/000/001/034/035 E1911/E155 The most effective of the aluminium radiators is one with a cooling surface of 800 cm2. Witt, ~j cooling air speed.of 8 - 10 m/sec and an aluminium radiator the'rectifier withstana 12D% load for 30 win and A50'; load for 3 min. The rectifier withstands 5 times rated load for 0.42 sec., and at these overloads can be protected by high-speed fuses type nHF:,-2/300 (PNB-2/300). To ensure satisfactory load distrib4tion between parallel rectifiers in bridge arms, they must have matched voltage dropto within OoOl - 0.02 V. 7 figures, [Abstractor's notet Complete translation Card 2/2 I . i 'i.'N , J i.; U, 2. U. --, IR (600' ) 4. Folk Longs, Aussian 7. Co:w~ to Vologdal Klub 2 no. 4, 1953- 9. ~onthjy List of Russian Accessions, Library of Congress, APRIL -1953, Uncl- --XRIYMOV, V.A. insh - ~ - UsIng noll-cemats for floor underlayers, Bful. strol. takh. 15 no,2t 20-21 F 058, (MIRA 142) 1. Stroytrest No.49, Ommimya oblast 1. (Floors, Concrete) Kamov. (S INybyahav). Cbml4ml soorlments with, an-slactrio are. 1rhim. v shk*lo 12 no.3.- 31-32 W-Jo '57. (Ilectric are) (KIa 10:6) T 2. IUSSR 600) 4. AcetY..ene 7. Apparatus for the demonstration of principal experir;ents with acetylene, Xhim. v shkole, No. 5, 1952, 9. Monthly List of Ru5slan Accessions, Library of Congress, Februal"I 1953. Unclassified. GOGOLINA, T.V.,, Inzh.; KROTKOV, V.N. , Inzh.; SOKOLUI, O.A. , inzh. Gas-driven refrigerator compressor for the Fx_,troleum processing and chf,*Acal industrys Khol,tekh, 41 no.1:7-11 Ja-F 164. (MIRA .17:3) 1. Mentrallnoye konstruktorzkoye byuro ki4olodil'nogo mashino- ,stroyoniya (for Gogolina, Krotkov). 2. GosudarstvennTj proyektnyy i nauchno-isoledovatel'skly Institut prornyohlennostl sintetiches- kogo knuchuka (for Sokolov). MINETEV, P.A., Inzh.j GUREVICH, U.S., insh.; SHINKA, V.Ya.,, inzh.; BUKHTER, Te.Z., Inzh.; SHCHERBAKOV, V.S., inzb.; WINA, N.I., inzh.; GLUKHOV, V.V., insh.; GOGOLINA, T.V., inzh.; KHOTK.Q-V,-VJI" inzh.; STASHIN, Te.A., Insh.; KUSHPIER, A.P., Inzh.; TERMOVA, P.X. insb.; PAVLOV, R.V., inzh., red.j KASPEROVICH, N.S., 146isd-val UVAROVA, A., tekhn. red. $7- - (Catalog of refrigeration equipment] Katalo kholodillsogo oborudovanila. Moskva, Mashgis, 1963. la P. (MIRA 16M 1. Russia (1923- U.S.S.R.) TSentraltuoye konstruktorskoys byuro kholodillnogo mashinostroyealya.2. TSentrallnoye konetruk- torskoys byuro kholodillsogo mashinoatftyeniya (for all except Kasperovich, Uvarova). (Refrigeration and refrigerating machinery-Catalogs) -1-KROTWIP V.V.; POLOSIN, V.S. Formu of relation between teacher's words rind students' activities durIrg the experiments for the reinforcement and improvement of chemical knowledge. Uch.7,ap.MGUJ'I no.225t89-94 164, (I'a RA 18: 12) KRO-aOV,, V.V.; FOLOSIN, V.S. Using the comhined experiments and problotus tn roinforcIng and Improvin4-, atudental knowledge of chenlnntr~j-. Uc),,.,,*aj,.1,tGFI no.225s128-135 164o De%rionstration experiments on the topic "Hydrogen." Ibld.:136-139 Demonstration experimnts for the reinforcement and improve- wnt of students' knowledge of the topic "Water. Solutione" In eight-yoar schools. lbid.:140-151 Experiment protting the formation of water during the neutrali- zation reaction. rbid.:152-155 (MRA 16:12) - -- XROTKOV, T.T. (g.Khybyahev). Obtaining nitric oxide from potassium nitrate and chronic oxide. Xhis.v shkols no.5:64 8-0 153. Ouju 6:9) (Nitration) KROTKOV, T.T. (Kuybysheir) Automittic gas meter. Khim.v shkole 11 no.1:54-55 Ja-F 156. (Gas motors) (MLRA 9:2) SULINSKIT. G.1, kard.Ded.nauk(Laningrad); XROTNOY, V.V.; PLET11911, N.Y. Useful, but poorly written book ("Chemistry mude interestin4g" by I.I.Wknvokit. Revinwed by G.I.Sholinakii, V.Y.Krotkov. IU.T.Platner). Xhim.v shknle 14 no.5:84-87 S-0 159- 04IFA 12:12) 1. Hartyakly pedagogichookly inotitut, g.Toahkar-Ola (for Kratkov). 2. Xalininskiy pedagogichmakly Institut (for Plotner). (Chemistry-Study and teaching) (Zaikovskii, I.I.) ROMNOT. D., kand.takhn.nauk,- XROTKOT. Ye.. insh. Using prefabricated supports In construction In the German Democratic Republic. Sell.strol, 15 no.6823 Je 160o (MM 1318) (GermatV, lest-ftra buildings) IIOVRUZOV, G.M.; KFtOTKOV, Yu.1. Teledynamometering of beam wells. Azerb. neft. khoz. 40 no.6:30-31 Ja 161. (MIRA 14s8) (Oil wells) (Dynamometer) (Telemetering) KROTOV, Yu.V., kand.tekhn.nauk, dotoont (Stalinak, Kuznetskiy bas3eyn) Leteral stability of coupled &Tohes with dual curvature,, Rasch.- prostr,konstr. no.61l39-148 61. (KRA 150) (Arches) PCTCI~, 11. F. I KROMOVA, A. P. ",C-ecrot~rM~Uf--g ,astric clands of horse in feeding of animalfi.11 80; let. 25 (10) 19LOt P. 32 0 0 0 41 0 0 * * * 0 q 0 q 0 0 0 0 0 * q 0 0 0 0 0 0 0 0- V. Popwv awl A. P, Ki-dbove (M.-w"o %to Arad.) 1-164 O"mo bkh Irva of am Os"; .1t7 boy awl OAIG " IAt hPWW kIIIV4 4.. M KCM41twx MOKA NEDICA S80.2 V01,10/2 Fhysiology,etc Feb57 734. KROTKOVA A. P. and KURILOV N. V. Dept. of Animal Physiology, Vet. -Ac-a-d.-,--Mo-a-co-w-.-fChanges of cardiac rhythm FIZIOL.Z. 1956. 42/8 (648-652) Graphs 3 Illus. I (Russian text) Morphine (I ml. of 1% solution) decreases the heart rate of norms. dogs to 40-50 beats P. tn. but after removal of the cerebral hemispheres it decreases the rate to 24-30 p.m. Two to 5 weeks after bilateral vagosettion atropine (I ml. of 0.1% solution) increases the heart rate by 82-155 p.m., as compared to an average increase of 73 beats In normal condition. Complete cardiac denorvation abolishes the effect of morphine, atropine and *x*rcise on the heart rate, and causes dras- tic reduction of capacity for physical work. Simonson - Minneapolis, Minn. (U,I$*) 1. Kafedra fiziologii se1'skokhozyazstvenrWkh zhivotnykh Hookovkkoy vetertnarnoy akademii. USSR / Human and Animal Physiology. Nervous System. T-10 Abe Jour : Ref Zhur - Biologlya, No 1, 1959, No- 3874 Author : Kurilov, N. V.; KrotkavA,,A._P.. List : 14oscow Institute of Veterinary Medicine Title : Conditioned Gastric Secretion Reflex in Horses Orig T-lub : Tr. Moak. vat. eked., 1957, 20, 150-154 Abotruct : In 2 foals, an Increase in gastric secrotion was obsorvad at tho usual time of feeding (time reflex) in roaponso to a mechanical distention of the stomach valla (intro- duction of 1.5 1 of air) and as the result of shaving food to hungry animals (manipulations connected with pro- paration for feeding). According to the author, tho contradictory data in literature with respect to the presence of a conditioned gastric secretion reflex in horses should be attributed to errors in the methods of investigation. -- X. S. Ratner Card 1/1 93 OTko V17 /7 10 US!M/Tarm - GQncral rcobL,,c.,.s. Abs J-)ur 'iu,., - Ysiol., No 11), 111/-;, %281 Author Kmt,;Ova, A.P. ..... .... . Acadcmy ct' Title of' Feeding Su"I., ~A. the Course o,' Acido-3is in Or i g Pub Zv. Aosc. vet. akad., 1~'57, P-0, 172-175. Abstract 1!0 pb-SILI-act. Card 1/1 'a - &&, biolog.nauk .-I Ugk*" PIUJAW6 Bffect of sugar bents on acidesto In ruminantn. Zhivotnnvodetvo 71 no.'7:61-64 Jm 159. (MIRA 1219) 1. KnaknvOm7a votorinarnaya itkadmiya. (Acidosis) (Sugar boots an fend) Okiminantia) YROTKOVAt A.P* -- - -Hsthg-for the application of a oalijary cannula in ruminating ani-Is. Fiziol. staw. 46 no, 5:634-635 H:T.160. . (MIRA 13 s U) 1. From the Physiology Chair of the Veterinary Academyo Moscov, (VETRINARY SURGERX) (FWTULk) .' A* KRMCVA~ A.P., dotsent; GOREYSV, G.,.aspirant Effect of feed preparation on the course of processes in the rumen of ruminants; preliminary report. Zhivotnovodstvo 23 no.2t77-78 F 161. (MIRA 15:11"1 1. Moskovskaya veterinarnays, akademiya. (Rumen) SHALASHOVA, To,S.; KRDTKOVA, B.10 Objective methods for qualitative analysis of vater. Tod.i san.tekh. no.8$18-22 Ag 160. (MIRA 1317) (Water-Analrols) KROTKOVA, B.Io Fffect of an1donulfonic acid an fhe bactnrIeLdal actlon of chlorine. Nauch. trudy ANKII no.22t7l-80 163. (MIRA 1835) i:-A oV manter curveo for calculating the eff(ict of neighboring 7,,,nen cn the qwtsi--MOIdaI haiRht and plumb line deflection in det.pi-mining the effent of distant zones from Mollodenakii'a fbrmUlAe. L MrAy I'SNITGATr no.1.57.109-115 165. (MIRA 18.,10) XROTKOVA,Y.G. (Problems in rural health protection; transactions of the acientifio session of the Academy of Medical Sciences of ths U.S.S.Ro hold in Xminodar on March 23-25, 1954.1 Top- rosy sdravookhranoulia na eels; trudy nauchuoi seasit, Akademil meditsinskikh nxmk SSSR v krasnodare 23-25 marts, 1954 g. Moskva. Medgis, 1955. 137 P. (XLRL 8:6) (Public health, Rural) GRISIWK, 1. .-~' -. p(YMOVAA. &.A. j ft4 2. U-:Slt NO 4. Ned Ilat-ir Purification 7. Dearerat" Ing feed water with increased pressu're. Izv. VTI 21 no. 11, 1952. 9. Monthly List )f Russian Accessions, Library of Congress, February 1953. Unclassified. QRISHUX, I.K., kandidat takhaichookikh nauk; IRMOVA, M.A., Inshoner. Purifying food water in a storage tank by bubbling. 21ok,sta. 24 Ao.4t 12-16 Ap 153. (XLRA 6:5) (Yeed-water purification) ACC NRt AP7004719 SOURCE CODE: uR/ooi6/66/ooo/O08/Ol51/0151'1 AUTAOR: Krotkova, M. R. ORG: First Leningrad Medical Institute im. Pavlov (Leningradskiy meditsinskiy institut) TITLE, The irmiunological reactivity of the organism during decreased atmospheric pressure in a pressure chamber. Report 1. Effect of decreased atmospheric pressure on the immunological condition of mice infected with typhoid and staphylococcus -SOURCE: Zh mikrobiol, epidemiol i immunobiol, no. 8, 1966, 151 TOPIC TAGS. moUse, immunology, hypoxia, staphylococcus, typhoid, bacterial disence, high pressure chamber, atmospheric pressure, infective disca5c I ASTRAC71: The resistance of mice to typhoid bacteria and staphylococcus was studie(- under conditions of decreased atmospheric pressure in a pressure chamber. The animals were vaccinated with a chemical typhoid monovaccine (0-3 ml; 30 Pg of j,iu,e antigen). Infection took place on the 10-12th day after vaccination. Presswe' parameters were: "altitude"-4ooo m (75 m/sec) for 30 min; recovery-5 m/sec. It was fouznd that resistance to typhoid and staphylococcus increased under these condi- L~o.is; the viability of typhoid-infected mice was 1.99 times higher, while that of ;taphylozoccus-infected mice was 2.22 times higher than that cf the control - vroup (t ~a 3.1 .5, -espectively). The postvaccination immunity index (anti-typhoid) increased 5 to 1.99 times that of the control group (t a 4.1). To test the effectn of 02 partial UDc: 616.927+616-981.251-09 9- -7.3-022. -001.12 !-'ACC MR. AP7004 19 7 Pressixe on this plienomenon, 16 mice were placed in a ten-liter jar, through which liumidified 02 was circulated at 0.4 liters/min for 15 min. Unvaccinated mice re- ceive'l 02 only after infection, while vaccinated mice were exposed after vaccination tL-,d infection. Oxygen saturation took place prior to "a3cent." This series showel that _uring 0 inhalation, the resistance of the animals increased by 2.00-2-03 (t = 6.0-8.93. Postvac.-ination typhoid immunity was 1.99 times greater than that of tht control group. The data showed that the immunological reactivity of mice ir~- c-eased during decreased atmospheric pressure as well as during increased oxygen saturation. However, exposure to oxygen prior to "ascent" apparently eliminated the favorable effect of decreased atmospheric pressure on the immunological condition of the organism. (WA-221 SUB CODE: 06/ SUBM DATE: 17Jan66 Card 2 /2 XROTIKOVA, N.A. Intranirganin lymphatic: syetem ff the human sLczach In poiyposls. Sbors nauch, trude Iva, gos, "nodo init. no.250-11 162. (MRA 1745,~ 1. 1z kafedry normal Inoy anatoadi. (zav. - prof. Ye.U. Vyrenk:w) lvanovskogo go3udaratvennogo med!tqit,akngi in3tituta (rektor - dotsent Ya.M. Romanov). VITMVICH, M.N.: KWTI(OVA, 0.0., redaktor; GRIBOVA, G.I., takhnichaskiy redaktor (Geography; textbook for class 4 of the elementar7 school. Tranalated from 4.ed. of Uchpodgis of the R.S.P.S.R.) Geograffla; p1druchnyk dija 4-ho klasu pochatkovol shkoly. Pereklad z chat- vertaho Tyk44tnlia plate. XyLv, Derthavne uchbovo-pedagog. vyd-vo "Hadianelka shkola." 1953o 151 Pe (MLRA 8:9) :(Geographi) - c f '. % c. 1'. A, L A.; i.ll/lli I Ij :0 .14 lulu"Arial si, 'Id 0 lc, 1. 11c.o of fizoly-diapor.-,cal :oId in wizluatinc; L 11 tho ,vo:3 x;cto for 1-inuin- Lol,l un tile Fnhij-ula. 1,azVed. I I w , ol~c:,. .10 n,).6-i5-17 Je 164. Mu 17: 10) 1. i~illlsjinskoyo up-avlan-i'.re. f I BTELADZOROV, S.T. redaktor; IUIASHRIKOVA, O.G., takhoichn y or [Askanip-love; A Ofinual for leaders of school excursions) Askanita-2m; posibnyt dlia kerivVklv shkIl'nykh ekskursit. 41v. DsrAt.uchboiro-pedagog, vyd-vo *RadiavA#km shkola," 1956. 97 P. (KW 10t6) (Askentys-Nova-Zoological gardens) BONDARCHUX, Vladimir Gavrilovich, skademik- XROTXOVA, O.O.,rodaktor; 114 WXASH, M.M.,tokhaichaskiy rodaktor '~ [Savist Carpathians; an outline of their geology and geography] Radianalki Karpaty; goologo-geograf ichayl narys. J~viv. 'Damh. uchbovo-podagog. vyd-vo "Radianalks shkola,O 1957. 176 P. (HIM 10:5) (Carpathian Mounts Ins--nWs teal geography) K!~OTKOVA$ V.1i. IuAlMion regime of the city of Kuybyshev. Sbor. rfab. Kulb. ~idromnt. obser, no.2:5-17 165. (MIRA ISS10) '1'~e- a nd 0'~C, *) I'L -7X :NA, K IlThe Effect of Preliminary Artificial A, ,in,, un the Natural A,,ing FroceD:; of Low-Carbon 3teel," ra.re 50 o" the book "Froblems on Stren-th and Deformat.1;,ri or Matala ,In-I A11Cyj..II release,l by !he Mos--ow 1~ru7,tncer-fhysi~.s 111.9t., Mashiqliz, 1954 TABCON D-342613, 24 Oct 1955, m POGODINA-ALIDUMA, K.M.. kandidat tekhnichaskikh nauk. dotsent; Im P. Ye,Te.. iashener. -_ v ---- Effect of preliminary artificial aging on the process of natural aging in low-carbon steel. Sbor.nauch.rab. MITI no-8:50-58 154. (K= 9:3) (Steel--H ard ening) 110210YA, Yo.Ye. On hardness control with the aid of files. Zav.lab. 21 no,10:1270 '35. (Ketale-Testing) (KRA 9: 1) Krotkova, Ye. Yo. "Investiritim, of tlie toikim-ncy of ste..!j to uging following defor-avition." I-Iln HIj-,her Mucation USSR. I-loscow Order of Lenin and Order of Iibor Red banner Higher Technical Scho.-.)l imeni BA,-Lra:i. "',oscow, 195, (Dissertation for the Degree of Caryliclite in Tecialica Science) So: Krazhnay-3 letopis', No. 27, 1956. Moscow- ?--iges ~,4-109; 111. Category USSR/Solid State Physics - Phase Transformation in Solid Bodies Abs Jour Ref Zhur - Flzika, No 2., 1957 No 3853 Author Krqtk~,,va Ye,Ye,., Pcgodins-A-lekseyevs, K-M- Title On a Pr:-ceduxe for Testing Carton Structural Steel for Tendency to Deeforzaticn Aging Orig Dub Tem.~cheskaya obrabotka metallov WM, 70). M., Mashg1z, 1956, 64-76 Abstra.,t The conditi,as under which the tendency of carbon structural steel to de- fcrmatirn aging manifests itself most clearly are explained. These coaditic,txs we brought about by the following combination of treatments: 1) cu+.ti.-rg specimeas from the head portlon of the ingot along the rolling length'in a direction perperAicular to the direction of the rouing; 2) prior ccmpression of the specimens by 10%; 3) aztificial aging at 250P fl,r 1 hcur and 4) testing for Impact at the temperature of the upper thresholA of cold-brittleness of the steel. The authors deem it advia- able to use the ratio of impact viscosity before and after agingas-a measwe of brittleness produced by the aging. Card 1/1 SOV/137-58-11-23378 Translation from: Referativnyy zhurnal. Metallurgiya, 1958, Nr 11, p 219 (USSR) AUTHORS: Pogodina-Alekseyeva, K. M. , Krotkova, Ye. Ye. TITLE- The Effect of Actual Grain Size on Processes of Aging in MST.3 Structural Steel (Vliyaniye velichiny deystvitetnogo zerna na stareniye stroitell noy stali MSt.3 -1 PERIODICAL: V sb. : Term, obrabotka i prochnost' metallov i splavov. Moscow, Mashgiz, 1958, pp 5-18 ABSTRACT: The hardness and the ak (resilience) of killed open-hedrth MSt.3 steel of stardard composition were investigated after the steel had been subjected to various forms of treatment while in a state of pre- liminary overheating (normalization at 13500C for a period of 7 min), as well as after normalization at 9201 which was cdrried out in order to obtain different grain sizes, It was established that overheating reduces the quantity of work required to fracture a specimen in an impact test to a value of 19 kgm, the difference in properties of over- heated and normal steel remaining practically unaffected by various forms of heat treatment. Although, unlike fine-grained steel, the Card 1/2 coarse-grained steel is less susceptible to brittleness re"ting from The Effect of Pctual Grain Size on Processes of Aging (cont. ) SOV/1.37-58-11 -2 1378 tempering, woik hardening, and thermal aging, its mechanical properties ire affected by strain aging to a greater degree. However, the displacement of the upper threshold of cold shortness is identical in both cases. The effects of strain aging are connected with processes of cold hardening: As the ductility diminisheti during cold wor~.ing, the tendency toward brittleness during subsequent aging increases. M. G. Card 2/2 o e- PHASE I BOOK EXPLOITATION 65o Moscow. Moskovokoye vysoheye takhnicheakoye uchiliahche. Kafedra "Termicheakaya dbrabotka metallov" TemIcheskaya obrabotka i prochnost' mat&1lov i splavov; sbornik statey (rest Treatment and Strength of Metals and Alloys; Collection of Articles) McCaw, Wshgiz, 1958. 177 P- 5,500 Copies printed. Ed.(title page): Pogodin-Alekftyev, G.I., Doctor of Technical Sciences, Profeo- sc~r; Ed. (inside book): Yeaorkina, L.I.; Tech. Ed.: Tikhanov, A.Ya. PURPOSE: This book is intended for engineers and technicians in the machine- building industry, scientific workers at research institutes and industrial laboratoriee, and for students taking advanced courses at higher technical in3titutes. COVERA0: This collection of articles is devoted to problems of mechanization and automtion of heat-treating processes and to investigations of the mechars.. ical properties of metals and alloys as affected by their composition and by heat-treatment conditions. 7he experimental work was done by researchers at the Moskovskoye vyssheye tekhnicheakoye uchilishche imeni Baumann (Moscow High- Card 1/12 Heat Treatment and Strength of Metals and Alloys (Cont.) 650 er Technical Institute imeni Bauman),, the Vseeoyuznyy zaochnyy politekhnich- eskiy institut (All-Lbion Correspondence Polytechnic Institute), The L'YoVokly politekhnicheakiy Institut (Llvov Polytechnic Institute), and the Stalingrad- akly mekhanicheakly inatitut (Stalingrad Vachanical Institute). Fbr references and further coverage, see Table of Contents. TAM OF C011TENTS: Pogodina-Alekseyeva, K.M., Candidate of Technical Sciences, Docent; Krotkova, Ye.Ye., Candidate of Technical Sciences. Effect of Actual Grain Size-din-TW" ltkXn-g of MSt-3 Structural Steel dF Author's conclusions: 1. In MSt-3 steel with a coarse grain, obtained by m3per- heating (normalization at 13500C. for 7 minutes) the upper threshold of cold shortness is 80* higher than in steel normalized at 9200. The energy absorb- ed in the fracturing of the superheated steel In the pasty state was as lov as 19 kilogram-meters, while in the case of specimens normalized at 9200 it ex,-.eeded 30 kg-m. The sharp difference in the properties of superheated and no--malized steel is preserved even after subsequtnt treatment, such as cold hardening with a reduction of 10 percent. mienching at 7000, strain aging,and qViench aging, although these treatments produce effects in varying degree. Card 2/12 Heat Treatment and Strength of Metals and Alloyo (Cont.) 650 (in the case of fine-grained steel), embrittlement with subsequent aging Vill 'be less, and conversely. Arzamasov, B.N., Candidate of Tachnical Sciences; Marinchev, S.G., Engineer. In- o.reasing the Hardenability of a Shaft by Interrupted Quenching in Water 19 Author's conclusions: 1. Fbr purposes of analyzing the cooling process in quench- 1mg, it is possible to use the method of superimposing the cooling curves on the themokinetic diagram. 2. The hardenability of a 40Xh-steel main shaft for the transmission of the ZIL-150 automobile can be increased by interrupted quenching in water, thus rendering oil quenching unnecessary. 3. The sug- gested method of quenching permits full automation of the beat-treating process. (1here are 2 references, both Soviet. ) Samoshin, I.G., Candidate of Technical Sciences, Docent. Automatic Unit for Heat Treating Sewing Machine Needles 28 The author describes the unit, which was designed and builtat the Moscow Higher Technical School imeni Bauman. The unit, consisting of thirteen se;- arate sections, carries out the operations oZ hardening, washing, and temper- iag. In addition to needles, it can also handle other cylindrical objects or small diameter, such as watch axles, rollers for small bearings, etc. Card 4/ 12 Heat Treatment and Strength of ~btals and Alloys (Coat.) 650 Kuzactsov, I.V. , Engineer. ~bchanization and Automation of Heat-treating Procea- Ses at 1 OPE (Pervyy Gosudarstvennyy podshipnikovyy zavod: First State Bear. Lag Plant) 39 According to ]Oiznetsov, the output of bearings greatly increased at the plant after World War II,both in actual volume and in number of types. As a result, a special. office was created at the plant for designing and putting into operation mom modern, efficient heat-treating equipment. I S uch new equipment, now in operation at the plant, includes electric harden- ing furnaces with vibmting floors; conveyer-type electric and gas furmaccal rotary gas and electric furnaces; shaft-type electric furnaces for carburiz- Ing, hardening, and tempering of large-sized parts; conveyer-type electric tempering furnaces; pusher-type annealing furnaces; and high- and low-texper- ature electric muffle furnaces. The new equipcrent has made possible the com- plete automation of heat-treating processes. Various proble= of further improving heat-treating equipment are discussed. Sidtmova, 0.1., Candidate of Tbchaical Sciancea. Effect of the Diameter of Tenstle-test Specimens on the Vechanical h-operties of (Aluminum] Moy AL4 in Ordinary and Isothermal Heat Treating 47 It is shcwnthat as the diamter of the specimens is increased, the tensile Card 5/12 strength and elongation decrease, both with ordinary and isothermal heat Heat Treatment and Strength of bbtals and Alloys (Cont.) 650 treating. This seeming contradiction is explained by a favorable inter- action between the cooling rate and thermal stresses in the case of the small-diameter specimens. There are 2 references, both Soviet. Pogodin-Alekseyev, G.I., Doctor of 71echnical Sciences, Professor; Vasillyeva, A,G., Candidate of TL-chnical Sciences. Strength and Plasticity of Steel in the Recrystallization Temperature Range 53 The authors describe anomalous changes in strength and plasticity which occur during the recrystallization temperature range. There are 9 refer- ences, of which 8 are Soviet and 1 is German. RaIdwhtadt, A.G., Candidate of Tlechnical Sciences, Docent; Shur, D.M., Engineer. Properties and Heat Treatment of Alloys for Elastic Elements of In- strumente 65 A highly sensitive method was developed and a device designed for testing the properties of metal diaphrn~gms for instruments. The dlaphragns tested were made of beryllium bronze, phosphor bronze, and a high-alloy steel (N36KhM) containing nickel, chrome, titanium, and aluminum. 'rests made on the diaphragms after heat treatment showed that their properties depend strongly on the temperature and length of aging, during which a decompoo- ition of solid solutiona takee place. Aging Inemaces hardness ana the elastic limit up to a certain maximum, whose position in time depends on card 6112 Heat Treatment and Strength of ~btals and Alloys (Cont. ) 650 -the temperature of aging. Hysteresis, residual deformations, and sag are at their minimum approximately at those temperatures at which the propertieto as- JOCiated with strength are most pronounced. Thus it is scenthat these prop- arties of the diaphragms are linked with the structum of the alloys: the higher the resistance to the development of microplastic deformations, the smaller the degree of hysteresis. On the basis of theseTindings, certain iwthods of heat treatment are recommended for diaphragms made of the alloys specified above. 7here are 43 references, of which 25 are Soviet, 17 English, and 1 is French. Pogodin-Alekseyev, G.I.) Doctor of 71echnical Sciences, Professor; Fetisova, M.N., Candidate of T~chnical Sciences. Change in MicroBtructure, Type of Fracture, HarCmess, and Coercive Force of Steel in the Blue-brittle State 115 The authors' Investigations led to the following conclusions: 1. The change in the type of fracture of the specimens corresponds to the change in toughness and plasticity in the blue-brittle temperature range. At testing temperatures of 100-4000C., the fracture changes from coarsely fibrous to finely fibrous. At 400* crystalline zones appear. At 525-5500 the crystallin zones achieve their maximum extent, and the plane of fracture be- comes 11stepped", as if laminated. At higher temperatures, the fracture again becomes fibrous. 2. A microscopic study of crack distribution showed that at 525-550* the fracture ordinarily takes place along the grain bound- aries, but in tough specimens it is usually tran3crystalline. No substant- Heat Treatment and Strength of Metals and Alloys (Cont.) 650 ial difference in the structure of tough and brittle specicens was observed at magnifications of UP to 1700 times. 3. The hardness of specimens that were impact-teeted at blue-brittle temperatures and cooled to room temper- ature was rather high as compared with specimens tested at lower temperatunis. This indicates a certain residual brittleness caused by the impact test in the 500-550* range. 4. Measurement of the coercive force of brittle and tough specimens showed no numerical difference for specimens retaining some brittleness after being heated in the blue-brittle range. Hence it is seen that the development of blue brittleness is not accompanied by a decomposition of solid solutions. 5. On the basis of the above, it would appear that the marked lowering of plasticity caused by blue brittleness is associated with a deformation process or with diffusion processes developing at elevated temperatures in the boundary layers of the grains, which processes, however, do not lead to the precipitation of dissolved constituents, but do cause embrittlament of the grain boundaries. There are 3 references, all Soviet. Arl:hipov, A.M., Candidate of Techiiical Sciences. 11eat Treatment for Improving the Properties of Cast Iron Tleemed in Metal Molds 125 Author's conclusions: 1. Temper hardening is necessary for obtaining a uniform structure along the cross section of the specimen, for increasing hardness and wear resistance, and for improving the mechanical properties of the cast iron. 2. Qxwnching results in an increase in hardness and a Heat Treatment and Strength of Metals and Alloys (cont. ) 650 decrease in strength- 3. Tempering at a temperature of 350-450*C. results in a uniform structure, decreased internal stresses, and miximm possible tensile strength, together with reduced hardness. 4. Quenching of cast iron teemed in metal molds is more effective than quenching of ordinary gray iron, since in the former case the graphite inclusions, strongly affecting the mechanical Iroperties, differ greatly in shape, size, and distribution from those in ordinary gray iron. There are 5 referenzes, all Soviet. Arkhipov, A.M., Candidate of Technical Sciences. Effect of Silicon Content on the bbchanical Properties of Cast Iron Teemed in bbtal Molds 139 The author's investigation shows that the graphitizing action of silicon in cast iron is at its maxim= when the silicon content is about 3 per- cent. Five heats of gray iron were studied, the specimens differing only in their silicon content (1-41%, 1.63%, 1.84%, 2.16%, and 2-37%) and in the method of casting (in permanent metal molds and in loam molds). Results showed that both tensile strength and hardness decreased as the silicon content increased, regardless of the type of mold, but that the tensile strength of the specimens cast in metal molds exceeded that of those cast in loam molds by about 1.5 percent. A linear relationship be- tveen tensile strength and silicon content was established, and an empir- ical formula derived for calculating the tensile strength of a specivLan of known silicon content. It was established that the chilled sitrface Card 9/12 Heat Treatment and Strength of 146tals and Alloys, (Cont.) 650 layer of castings made in permanent molds is much harder than the com of ouch castings, while there Is much leas difference in the hardness of the surface layer and core of castings made in loam molds. There are 3 references, all Soviet. Wboleyev-Zotov, V.V., Engineer; Pogodin-Aleksevev, G-Lp Doctor of Tech- nical Sciences, Professor. Experimental Device for Crystallizing Alloys in an Ultrasonic Field 147 The authors studied the effects of ultmsonic vibmtions on molten metal cooling In the mold. Three cases were investigated, rawly, a lead-antimony alloy, a zinc-tin alloy, and pure zinc. Vibrations of 180 kc/sec were emplDyw--d. In the first case a refined gmin structure was produced; in the second, little effect was observed on either the macrostructure or the picrostructure; and in the third case a non- dendritic macrostructure resulted, in contrast to the dendritic macro- structure of the untreated metal. There are 8 references, of which 7 are Soviet and 1 is German. Wkhshtadt, A.G., Candidate of Technical Sciences, Docent; Kremnev, L.S., Engineer. A ~bthod of Determining Energy Dissipation in Elastic Vibm- tions 157 A new method is proposed for determining the energy dissipation in the vibrations of a specimen fixed at one end in a teat stand designed Card 10/ 12 Beat Treatment and Strength of ~btals and Alloys (Cont.) 650 by S.O. TsobkoIlo. The method is based on the determination of the path of motion of the specimon. The authors obtain equations that give the relationship between the elastic energy stored in the specimen, the ampli- tude of vibmtions, the amount of energy dissipated, and the damping factor. The equations farther account for the magnitude of working stresses im- posed on the specimens and also determine energy dissipation per cycle, which is not obtainable ordinarily with the damping factor alone. These considerations, when applied to N361(hTYa steel, show that dissipated energy per cycle as a function of stress loading rises with increased stress, which is explained as the effect of microplastic deformation. At the time, the higher the resistance of the metal to small plastic deformations, i.e., the higher the elastic limit, the smaller the dis- sipation increment. In particular, minimum values for the dissipation increment and its rate-of increase are observed in specimens tested after hardening from a tempemtum of 950*C. and aging at 7000 for 2 hours, when their elastic limit is at its maximum. There are 3 references, all Soviet. ce-,j 1.1/12