SCIENTIFIC ABSTRACT MOSKVIN, V. M. - MOSKVINA, O. A.

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R001135410001-5
Release Decision: 
RIF
Original Classification: 
S
Document Page Count: 
100
Document Creation Date: 
November 2, 2016
Document Release Date: 
July 13, 2001
Sequence Number: 
1
Case Number: 
Publication Date: 
December 31, 1967
Content Type: 
SCIENTIFIC ABSTRACT
File: 
AttachmentSize
PDF icon CIA-RDP86-00513R001135410001-5.pdf3.87 MB
Body: 
0 I r p it I - .-- KURASM, V.A., prof., doktor tekhn.nauk; MIROHOV, S.A.. prof., doktor tekdm.nnuk; Afd-,KSANMOVSKIT, S.V., kand.tekhn.nouk; TAW. K.E., kand.teldm.nauk; DKITRIM, S.A., kand.tekhn.nauk; IRMIN, N.M., kand.tekhn.nauk; SIGALOY. E.Ye., knnd.tekhn.nauk; ITEMIR-OVSKIT, Ta.M., knnd.tekhn.nauk; TABB-71KIN, N.L., lnzh. (deceased]; KALA- TUROV, B.A., kand.tekhn.nauk; BRAIME, Z.I., inzh.; KFYLOV, S.H., kand.tekhn.nauk; FO:'JN, K.F., doktor tekhn.nauk; GUSEV, N.H.. prof.. doktor tekhn.nauk; YAKOVLEV, A.I., inzh.; KOREN9V, B.G., prof., doktor tekhn.naulc; D-PRESHKY-VICEI, Yu.V., inzh.; MOSKVIN. V.K-;-lU-TIIYE, L.L., inzh.; KAKARICHEV, V.V., kand.tekhn.n-auk; SIGVCHENKO, V.A., inzh.; VASILIT&V, B.F., inzh.; KOSTYTJKOVhXIY, M.G., kind.tekhn.naulc; MAGARIK, I.L., inzh.-, ILYASn"/SKIY. Ya.A., inzh.; LARIKOV, A.F.. inzh.; S7ULOV, T.T., inzh.; TRUSOV, L.P.. inzh.; LYUIKOVaIY, I.G., kand.tekhn.nauk; POPOV, A.N., kand.tek-hn. nauk; VINOGRADOV, N.M.. inzh.; USHAKOV. N.A., knnd.takhn.nauk; W~OV. P.M., inzh.; TER-OVANBSOV. G.S.. inzh.; GL.UKOV, B.N.. kand.tekhn.nauk; KOSTOCHKINA, G.V.. arkh.; UaM, N.H.; OSTROVSKIY, M.V.. Icand.tekhn.nauk: PFaMISHT]KYN. ZA. in7h.i BUICSIUMI. D.I.. inzh.; (Continued on next card) MURASH9V, V.A.--(continued) Card 2. XIKHAYLOV, V.G., kand.takhn.nauk; SIGALOV. E.Ye.. kand.te)dm.nauk; GVOZISV' A.A., prof.. retsenzent; HIKHAYLOV, T.T., prof.. retsen- zent; PAWYERNAK, P.L., prof.. retsenzent; &MIN, K.A., lnzh.. retacnzent; TEMKIN. L.Ye.. inzh., nauchnvy red.; KOTIK, B.A., red. izd-va; GORYACHZVA, T.V., red.izd-va; MEDVEM, L.Ya.. tekhn.red. (Handbook for designers] Spravochnik proektirov~ihchikn. Pod ob- shchei red. V.I.Kurasheva. Mosk7a, Gos.izd-vo lit-ry -o stroit., arkhit. i stroit.materialam. Vol-5. [Precast reinforced concrete construction elements] Sbornye zhelezobetonnye konstruktaii. 1959. 603 P. (MIRA 12:12) 1. Akademiya stroitelletva i arkhitaktury SSSR. Nauchno-lasledo- vatel'skiy institut betona i zhelezobotona, Perovo. 2. Deystvitell- nyy chlen Akademii atroitalletva i arkhitaktiiry SSSR (for Hurashev. Gvozdev, 14ikhaylov,V,V,, Pnsternaks Shubin), 3, Chlen-korresp. Aka- demii stroitallatva i arkhitektury SSSR (for Hironov, Gusev, Moskvin, Kursk). (Precast concrete construction) SOV/97-59-1-b/18 AUTHORS: Moskvin.._V.k., kember of ASiA 535R, Doctor of Technical Scieii-C-0-3-1-p-roiessor; Alekseyev, S.N., Candidate of Technical Sciences, and Batrakov, V.G., Enginaer TITLE: Silieo-Organie Additive for Increasing Frost-Resistance of Concrete (Kremniyorganicheskaya dobavka dl7a povysheniya morozostoykosti betona) PERIODICAL: Beton i Zhelezobeton, 1959, Nr 1, pp.19-21 (USSR) ABSTRACT: Frost-resistance of mortars and concretes can be considerably increased by the addition of a new hydrophobic compound GIM-94. The optimal quantity of additive recoazqnded to secure frost-resistance is 0.1% (by weight of binder). While this additiv% retards hardening in the initial stages, concrete and mortar have normal strengths after 28 days. Tests with GKZL-94 (discovered by Candidate of Technical Sciences M.N. Plungyanskaya) in the form of a 50% aqueous emulsion were carried out by ttie Laboratory for Protection of Concrete and Reinf oreemen t from Corrosion, of the Institute of Concrete and Reinforced Concrete ASU SSSR (Laboratoriya zashchity betona i armatury ot korrozii Inatituta Detona i zhelezobetona ASiA Card 1/4 SSSR). GKZh-94 has the following properties: it does not 0 SOV/97-b9 -i-b/ib Silicz)-Organic Additive for Increasing Frost-Resistance of Concrete encourage corrosion; it does not form harmful gaseous products; it easily emulsifies In water, and emulsiun is permanent. Tests were carried out on test cubes, 70 x 70 x 70 mm in size, 3, 7 and 28 days after appileation of the solution mixed in the proportion of 1/3. The water absorption was tested by submersion In water for 24 hours of test cubes 40 x 40 x 160 mm. Previo-asly the cubes were dried out t, a constant weight. Frost resistance tests were carried out, by an accelerated method, by means of freezing and defreezing of test cubes in a 5~ solution of natrium sulphate. Results of these tests are given in Table 1. The addition of small quantities of UKZh-94 (0.01 - 0.1% by weight of cement) has no effect on the normal consistency of cement. When the addition roaches 0.5% or more the density increases. The time of setting of cement increases with Increased quantity of the additive. The addition of 0.1 - 0.01% by weight of cement sli6htly increased the strength of samples. The addition of 0.12 - 0*2% retards the growth of strength, but after 28 days the Card 2/4 strength of concrete is slightly higher than the standard SUV/97 -Dj -1-"3/ lb Silico-Organic Additive fof Increasing Frosr-Resistance of GJacrete GKZh-94 and its effect on the strength of concrete after 3, 7, 28 and 90 days of hardening are given in Table a. Test cubes were tested for breakage on apparatus IChYA-2. There are I figure and 6 tables. Card 4/4 MOSK719. V.,H.. doktor tekchn.nauk. prof.; ALIKSWZV, S.U.. lmad.takhn- .nauk Protecting reinforcements In porous concretes fror, corrosion. Trudy MIIZHB no.8:144-150 '59. MRA 13:4) 1. Mauchno-iseledovatellskiy, institut botona I zhelazobotona Akademit stroitalistva I arkhitoktury SSSR. (Reinforced concrato--Corrosion) MOSKVIM, VA., doktor takhn. nauk, prof. ;AIM?.YBV. S.M.. !mad. teYhn. nauk; I . ~ - .BATBAMDV. Y.G.. inzh. Effect of various oemeuta on the strength of concretes and rein- forcements. Trudy KIIZHB no.9:4-20 '59 (MIRA 13:3) (Cement) (Reinforced concrete--Testing) KWKVlM..T.X.,,doL-tor praf.;ALWZY3v, S.M., imnd. tekhn. nauk.; BATRALCOV, T.G. , iazh. Zffeot of soaa organic admixtures on the frost resistance of concretes. Trudy MEW no.9;70-82 '59 (MIRA 13:3) (Frost resistaat concrete) MOSKVIH, V.M. doktor tekhn. nauk prof.;KUHUTOTA, I.I., kand. khim. nau Obtaining radioactive compounds of hydrated calcium aulfcalumimtes. 'rudy VI1ZHB no.9:83-87 '53 (KIRA 13:3) (Calcium compounds (Aluminum compounds) 140SKVIN, V.K., doktor tekhn. nauk. prof.; KURBATOVA, I.I., kand. khim. nauk Using the 5 radioisotope in studying the effect of sulfate corrosion in sodium S41fate solutions. Trudy NUMB no.9:88-95 '59 NIBA 13:3) (Radioisotopes--Industrial application) (Gonerete--Corrosion) MOSKVTS. V.M., doktor takhn. naukIROYAK, G*G., insh. Interaction of ascent alkmlies with aggregates in concretes. 7rudy HIIZHB no.9:96-111 159 (MIRA 13:3) (Concrete--Corrosion) (Alkalies) doktor tekhn. nauk;FRANK, G.A.. iazh. Chemical resistance of clinker minerals and various types of cement in alkali solutions. TruAy NIIZHB no-9:112-113 '59 (MIRA 13:3) (Alkalies) (Cement clinkers-Gorrosion) (Come at--Corros ion) MOSKVIN, V.M., doktor tekha. naviL, prof. ;PODVALI OT, A.M., lnzh. Iffect of stresses on the corrooloa resistance of concrete. Trudy HIM no.9:124-142 159 (MIRA 13:3) Woucrete-Gorrosion) (Strains and stresses) MOBLVIN. VA.. doktor takhn.nauk; ALZKSgY&7. S.M., kand.takhn.nauk; ILINOTA, G.D., red.izd-va; BOROVMV, U.K., tekhn.red. (Instructions for protecting reinforcements of reinforced concrete construction elements from corrosion] Uk-azanila po zashchits armatur7 zhalazobetonnykh konstruktaii ot korrozii. Koek.va. Gos.izd-vo lit-ry po stroit., arkhit. i atroit.ma- terialam, 1960. 24 p. (141RA 13:6) 1. Akademiya atroital'stva i arkhitektnry SSSR. Inatitut batons I 2halOzobetona. Perovo. 2. Chlon-korrespondent Akademli stroi- tal'stva i arkhitaktury WSR (for Hoskvin). (Reinforcing bars--Corrosion) PHASE I BOOK EXPIDITATION SOV/ I. j+4,)1 Akademiya stroitellatja iarkhitektury SSSR. Institut betona i zhelezobetona K-:.r-r-,,ziya zhelezobetona i metodv zashchity (Corrosion of Reinforced Concrete and Methods of Protection Against It) Moscow, Gosstroyizdat, 1960. 131 p. Errata Blip inserted. (Series: Its: Trudy, vyp. 15) 5,000 copies printed. Ed..* VX Hclskvin, CorTesponding Member, Academy of Building and Architecture USSR, D,.-ctox of Technical Sciences, Professor; Ed. of Publishing House: M.N. Tech. Ed.: E.M. 911kina. PUlUkM, T'~iis b,-~,ok is intended for scientific research workers and construction engineers zo-,~ializirjg in reinforced-concrete structures. COVERAGE* T~le ct,]-lection of 9 articles deals with corrosion pr3cesses which occur in zeinfclr-ced concrete and methods of combating them. Increasing the durability rrf reinf-reed concrete through the use of admixtures of organosilicon compounds or by i4sing protective coatings with lacquers and enanels is anal:fted. Ways of avc-ld-ing deformations in reinforced concrete caused by frost are discussed. No personalitles are mentioned. References follow each article. Card 1/3 Corrosion of Reinforced Concrete (cont.) SOV/4491 TABIE OF CORMIS % HO [Dcc+,zr of Technica~. Sciences, Professorl.,and A.M. Padvallnyy 2- ~-n ~- 1 [Engineer]. Methods for Investigation of the Corrosion Processes in Concrete by !-beans of Specimens Under Tension 3 Pr.)dva1'ny-.y, A.M. Stability of Concrete Under Tension in Aggressive Bnvirormieants 14 Batrako-v, V.G. [Engineer]. Investigation of the Influence of Admixtures of Organcs.111con CampoundB Tpon the Durability of Concrete 44 Alekseyev '. 3.N. (Candidate of Technical Sciences). Protection of Reinforcing Parts A4galnst Corrosion in Cellular Concrete 58 Kc~rnfelld. 1.A. [Engineer], and V.A. Pritula [Engineer). Electro- CCrT-0131 On '-n Reinforced Concrete 72 Mbehchans'Ay,, N.A. (Doctor of Technical Sciences,, Professor], and Ye. A. Puchnina [Janior Scientific Worher). Protective Plasterings and Coatings ftr Layings and Concretes In a Hydrogen Chloride Environment 80 Card 2/3 Ccri-z,siun :jf Reinforced Concrete (Cont. SOV/44 Kononenkc, A.S. [Engineer]. Increasing the Stability of Silos 95 Piungyanakaya.. M.N. [CawUdate of Technicrtl S(-I.~!ncefl. Protective Coatings on the Basis of H-ydn-;fobic Materials, Perchlclr..,vinyl and Ep,--xid.e Lacquers and Enamels 103 --Koikwin.L V.M., and A.M. Podvallnyy. Frost Resistance and the e-- - Darability of ReLfforced-Concrete StractiLres 110 AVATJ-ULE: of C~~filp~vess Card 3/3 JA/dwm/mas 22-6-6o KOSKVTIT,.--T.M., doktor tekhn.nauk prof.; PODMI NrT, A.H., lnzh. Frost resistance of streened concrete. Bet. j zhel.-bet. no.2: 58-64 F 160. (xm& u:6) 1. Chlen-korrespondent Akademil strottellstva 1 arkhItektury SSM (for l4askvin). (Frost resistant concrete) *OAVI-// S/097/60/000/009/x2/Gc6Ax I.; SV), 12 7 A053/AO29 AUTHORS: V M., Doctor of Technical 3(,-iences, Professor; Ale-kneyev. 3.N. Candidate of technical Sciences; Batrakov, V.G., Engineer TITLE; Effect of Certain Organic Admixtures on the Frost Resistance of Con- crete PERIODICAL: Beton i zhelezobeton, 1960, No. 9, PP. 389 - 393 TEXTz Kh.M. Leybovich and M.M. Kapkin, Candidates of Technical Sciences at NlItsement have demonstrated that by introducing the necessary quantity of silico- organic compounds a marked increase in frost resistance can be obtained (Rpf. 1). This has been confirmed by the works of M.N. Plungyans,kaya, Candidate of Technical Sciences, and V.M. Moskvin, Professor (Ref. 2). In *evious works (Ref. 3) it had been~established that the addition of rk x -94 (GKZ04~) silicoorganic liquid a product of hydrolysis of the ethyl dichlorosilane amouiting to 0.1% of the weight of cement increases the frost resistance of concrete 3 - 5 times. The article describes the results of investigations pertaining to the influence of other well- -known admixtures, such as sodium abietate (vinsol), and distillation wash from sulfite alcohol. The experimental investigation took place in the Central Labora- Card 1/3 3/097/6O/OOO/O09/OC 2/00 8/X X A053/AO29 Effect of Certain Organic Admixtures on the Frost Resistance of Concrete tory of Corrosion of the institut betona i zhelezobetona (Institute of Concrete and Reinforced Concrete). The tests were made with concrete prisms 7 x 7 x 22 cm made from Portland cement of 400 brand and puzzuolanic cement of 400 brand. Sand and gravel (5 - 20 mm fractions) were employed as fillers. The article gives the chemical composition of the cements. The following admixtures were used; a 50% water emulsion of silicoorgan-tc GKZh-94 liquid, nonsaponified abietic resin in powder form, sodium abeitute in powder folrm ( CH(3- SNV), sulfite-aleohol dregs a5 liquid concentrate. The admixtures were added to the concrete in the following quantitiesg GK7-h-94 C.1% (based on 100% emulsion), abletic resin 0.02%. sulfite- -alcohol dregs 0.2% (based on the dry substa..2e). After the samples had been prcc- uced and permitted to dry during 28 days, they were sutmerged in baths with ag- grffislve solutions in which they were kept for 4-8 hours, after which they were altarnately frozen at -200C and defrosted at +25 - 350C during 8 hours. The de- 6ree of destructi3n of the samples was evaluated by measuring the frequen(Y of the transversal oscillation of ~he bending of the sample on the 144MK-2 (IWEK-2) device and by weighing the sample; this permitted to calculate the dynamic module of Plasticity of the concrete. The durabilJty of the concrete was judged by the Card 2/3 A053/AO29 Effect of Certain Organic Admixtures on the Frost Resistance of Concrete number of cycles of freezing and defrosting a concrete sample could stand until suffering a decrease of 25% in the dynamic module of elastic.~ty or a loss 0t 5% of the original weight. A number of graphs sl~ows the influence which the above- -cited organic admixtures have on concrete made from Portland cement and from puzzuolanic cement. Two comparative tables give the sta-,e of durability of the two kinds of concrete treated with different organic admixtures; the aspect of the respective samples having undergone the tests are shown on a photograph. The s~iperiority of the silicoorganic compound GKZh-94 over the hitherto best-known admixtures is proved. Thn superior frost resistance obtained with GKZh-94 is main- ly due to the development of fine-pore structure in the concrete, while the viater- -repellent effect is only temporary-in the event of -astJng contact of concrete L with water. The utilization of M~-94 is recommended particularly for hydrotech- nioal installations. There are 3 tables, 2 sets of graphs, I photograph and 3 Soviet references. V* Card 3/3 YOSHCHANSKIY, N.A.9 doktor tekhn. nauk, Prinimali uchastiye; "OSKVIN, V,M..,doktor teklm. nauk.9 prof.; AMMSE M, S.N..' kand. tekhn. --nauk; KAPKIN, MENEM, V.M.3 PODVALINYY, A.M., inzh.i STRASMIYO, V.P., red.izd-va; MOCHALINA, Z.S., tekhn. red. [Regulations on the use and protection of reinforced concrete in shops with corrosive medJ.a]Instruktsiia po primeneniiu i zashchite zhelezobetons. v tsekhakh s agressivi7rd oredami. Moskva., GosBtroiizdat, 1961. 29 p. (IMIA 15:8) 1. Akademiya stroitellstva i arkhitektury SSM . Institut be- tons. i zhelezobetona, Perovo. 2. Chien-korrespondent Akademii stroitel'stva, i arkldtektury SSSR (for Moshchanskiy). (Corrosion and anticorrosives) (Minforced concrete) Y.WKVINI V.Mo 4oktor tekhnonauk, prof.; PCDVALIRY,, A*M., inzh. Calm %tion of the functioning of relaorced concrete elemente under cwrovive Influences whan establishing standards. Bet.1 shale-bet* noo6t246-249 Je 161e. (KERA 14:7) 1. Chlea-korrespon44t Akademit otroitelistva i arkhitektury SSSR (tor ~bskvin).' (Reinforced comerete) -MCSKVIN,-Vj4,., doktor teklui. nauk, prof., MEDVEDEV, V.M., kand. tekhn. nauk,, KAPKIN ', M.M., kand. tek-hn. nauk. Prinimali uchastlye: IVAI~IOV, F.M., I-and. t~-.khn. nauk; TSVETKOV, S.',",, , kand. t--khn. nauk; PAVLOV, VX,, ikzh.; KLINOVA, G.D., red. izd-va; LICIROVIJEV~ N.K.9 tekbn. red. (Instructions for increasing the durability of conerete in elements of marine IWdraulic structures] Instrtxktsiia po po-,rjshenilu dolgo- vachnosti betona v konstruktsiiakh mort3kikh gidrowkbnicheskikh sooruzhenii. Moskva, Gos. izd.-vo lit--ry po stroit. arkhit. i stroit. materialari, 1962. 58 p. ~MIRA 15:5) 1. Akadamlya stroitel'stva i axkhitekt,.-,-v SSSR. Institut betona i zhelezobetona, Perovo. 2. Chien-korrespondent Akademii stroitel'st-va i arkhitektAxy SSSR (for Noskvin). 3. TSentralInaya laboratoriya korrozii Nauchno-AssledovatelInkogo instituta betona i zhelezo- betons, Akademii stroitellstva i arkhitektury SSV. (for Medvedev, Kapkin). 4. Mantrillnyy nauchno-issledovatellskiy institut svyazi Minister0wa transportnogo stroitel'stva SSSR (for Ivanov). (Hydraulic stracturen) (Concrete construction) KOSKVIN, Vladimir Hikha~Llovlphl doktor takhn. nauk; ROYAK, Genrikh ~Soom~onovjch, kand. iekhn. nauk; GLEZAIZOVA, I.L., red. izd- va; MIKHEYEVA, A.A., tekhn. red. (Concrete corrosion caused by the action of cement alkalis on the silica in the aggragate]Korroziia betona pri deistvii shchelochei toementa na kremnezem rapolnitelia. Moskva, Gos- strolizdat, 1962. 162 p. (MIRA 16:4) (Concrete-Corrosion) - MOS-KVINI V2-Mj- PODVALIUYY,, A.M., kand.tekhn.nauk Study of the procesoes of corrosion in stressed concrete. Izv. ASiA 4 no.4sl6-25 062. OqM 16:1) 1. Chlen-korrespondent lkademil stroitellstva i arkhitektury SSSR (for Moskvir%),. (Concrete--Corrosion) ItOSKVINR V.M., doktor tekhn. nauk,, prof.; LAZAREVICH, I.A., inzh. Protecting concrete and reinforced concrete structures from corrosion. Bet. i zhel.-bet. 9 no.10:47&480 0 163. (MIRA 16:12) --, Atom 77 s1 MOSKVIN, V.M.; ALEKSEYEV, S.N.; NOVGCRODSKIY, V.I. Passivation and the destruction of the passivity of steel reinforce- ments in concrete. Zaahch. met. I no.5:559-564 S-0 165. (MIRA 18:9) 1. Nauchno-isoledovatellskiy instItut betona i zhelezobetona. IVANOV, V.7.; MOC-it"JI'll, Ya.G. Nature of ditstribution c."L the b-' t= ~n-,id2 ir, X,t - z " and Genczoi~-, sediments of the 3outh,,.--,,Ftern part an~ of the Ahadyy, Lowland. Ne!,-~Egaz. geal, a geofiz. 164 NIRA .tv, univarsltet im. L,monriso-re, 1. Moskovskiy gosuda-T-stvenw-, MITSKIY, I. I.. AXSELIHOD, L. S., MOSVIN, YE. M. Moscow - Streets Rapid continuoue method of road building in Moscow. Gor. khoz. Moak. 26 no. 6. 19:2. Monthly List of Russian Accessions, Library of Congress, September. ]R 52. LMCLASSIFI::D. MOSKVINR Yu.V.; YAKUBOV, I.T. Franck-Candon factors for the band oystems of a lithium molecule. Isv,vyipouchabazave; fiza no-4:173-175 161. (MIRA 14:10) 1. ~bskovskiy energaticheakiy institut. Obl3cules) (Lithium) 7-~' ~ ~--7- - -- ~ 7--- - ~ I-- -, For MOSKVINP YU.V. (Mbskva); CHESNOKOV.4, N,N. (lb.,kva) Spectroscopic study of an argon flow as it leaves the nozzle of a plasmatron. Teplofiz. vys. temp. 3 no.3:370-375 IAV-Je '65. (MM 18:8) L 11940-66 art 025 Cl" 1,110SVINIA I A-A Kql "I P-croelementlary S 4rE 7ass `=-matogra~'r- '--ter'-, of carbon, hydrogen, ana nf~roZen in or~-anic ".r. anal. 19 no.6:WQ-753 164. 1. GosudarstVenn7l~r instit!;t priklarinoy ~:himfi SOVI 49-58-11-12/18 AUTHORS:Moakvina, A. G. and ShebalJ-n,. N. V. TITLE: Seismograph Frequency Characteristics cf Pulkovo (Chastotny- ye kharakteristiki seysmografov stantsii "Pulkovo") FERIODICAL: Izvestiya Akademii Nauk SSSR, Seriya Geofizicheskaya, 1958, Nr 11, pp 1389-1393 (USSR) A.BSTRACT: The seismic station "Pulkovo" received in 1951 a new seismograph of the Kirnos-type to replace the old one of Galitzin-type, Both apparatus operated for several years simultaneously, It was observed that a constant interfer- ence with the periods of 0.2-1.0 see occurred on both seismographs. Therefore, when a reconstruction of the building took place in 1956 a series of experiments was made in order o find the best position for frequency characteristics, The spectrum of interference was obtained from 0.1 to 10 see by means of the oscillographs VEGIK (Ref. 1) and OSB-1 (Ref.2) with the galvanometers GB-11I and GB-IV. The most frequent characteristics obtained are shown in Table 1. An example of the spectral curve of Card 1/3 SOV/ 49 -58- 1.1--12/18 Seismograph Frequency Cha-racteristizs of i-lalkovo N-Z is represented in Fig.l., It can be seen that the minimum of the interference is found at the point of I sec, as represented in Fig,,2, wnich is the i3pectrum of the horizontal components for 12 separate i3tations. A seismo- graph can be considered as true if the amplitude of dis- turbance is not greater-Ahan 0,2 mm. for the periods less than 2 see and 0,5 to 0,7 mm for those of 5 sec A graph based on this assumption is shown in Fig,3, representing the curves of permissible magnificatioa, V and fre- quency characteristics of seismographs of Pulkovo., The analysis of the graph demonstrates that a broad band of charracteristi~~s cannot give gcod results in the range of C3 eriods 0,2-0_8 sec and 3-7 sec- These characteristics gnified about 1500 times) fall far above the curve of M permissible magnification. Therefore, to improve the value of recording the earthquakes selected characteris- tics should be used These were found by means of 4 pendulums. Their parameters related to the frequenc7 characteristics (Fig.3) are shown in Table 2., As it can be seen from the table, the maximum magnification V M of each characteristic does not differ much from the mean Card 213 SCV1 49-58-11-12/18 Seismograph Frequency Chaxacte-rlstir2 of Pulkovo magnification which shows freedom from resonance As a result, an improvement was obtained in registration of various seismic waves, with the better determination of the original phase ' better disti-riction (Fig,5) and better registration of s~;-rface waves of weak earthquakes (Fig,6), It could be said that registration was greatly improved, there was more exact inter-retation and a greater number of the earthquakes wa~~ re~~orded There are 2 tables. 6 figu:-es and 3 6oviet. refereLices, ASSOCIATION-. Akademiya nauk SSSR, Institut fiziki Zemli (Academy of Sciences, USSR ln3titute of Physlize of the Earth) SUBMITTED: June I],, 191"T Card 3/3 87971 s/o4g/60/000/010/007/014 9133/E414 AUTHORS: skv-ina- A.G.., and Shebalin, N.V. TITLE: The Use of a Seismograph With Two Galvanometers for Tracing Earthquakes at Two Levels of Sensitivity PERIODICAL: Izvestiya Akademii nauk SSSR, Seriya geofizicheakaya, 1960, No.10, PP-1474-1478 + I Plate TEXT: Several seismic stations have seismographs which alter theiv sensitivity at a given amplitude so that cscillations do not go off-scale (Ref.1 to 4). There are two main drawbacks to this:., (1) mechanical failure is possible in the switching device; (2) distortion of the trace always occurs during switching. Since alterations in sensitivity usually take place scveral times in the course of a single trace, much wastage therefore occurs. It is suggested that, instead, two channels should be used, one with a magnification ten times smaller than the other. The present authorn.give a typical circuit including an additional galvanometer (Fig.3). They also give the phase and frequency Card 1/ 2 87971 S/049/60/000/010/007/014 E133/E414 The Use of a Seismograph With Two Galvanometers for Tracing Earthquakes at Two Levels of Sensitivity characteristics of a seismograph with two galvanometers. A table is given of the calculated instrumental constants for the two channels. The circuit considered in this article actually has a second galvanometer which switches in automatically for seismograph amplitudes greater than five mIllimetres. Both the galvanometers record on the same strip. There are 4 figures, 1 table and 5 Soviet references. ASSOCIATION: Akademiya nauk SSSR Institut fiziki Zemli (Academy of Sciences U~'~R Institute of Physicsof the Earth) Rf SUBMITTED: February 25, 1960 Rgj Card 2/2 25464 Z/023/61/000/003/002/005 3-/300 D006/D102 AUTHORS: Mos-kvina, A. G., and Shebalin, N. V. TITLE: A study of seismic noise and calculation of the optimum seismograph constants PERIODICAL: Studia geophysica et geodaetica, no. 3, 1961, 227-230 TEXT: The seismic-noise level in the period range from 0.1 to 5-7 sec was measured at more than 30 seismographic stations in the USSR to find a suitable method of determining the optimum seismograph constants. The meadurements were made with portable pendulum seismo.- graphs consisting of a small penklum. (WEGIK system, reduced length 10=0.1 m; inertial moment K1=10- kg'm2; period variable from 0.5 to 4 sec; damping variable up to critical) and a POB-14, or a modified OSB-1 oscillo raph (the latter designed by Borisevich) with a GB-III galvanometer ~period 0.05 or 0.2 see, overdamped). The magnification of this system was about 10,000 - 20,000, stable for periods up to 2-3 sec. The seismic-noise curves obtained are characterized by one or two maxima in the period range of 0.1 - 0.6 sec, one sharp minimi4a Card 1 25464 Z/023/61/000/003/002/005 A study of seismic noise ... D006/Dl02 in the period range of 0.6 - 2.0 sec, and one or two high maxima in the period range of 2 - 8 see. Two maxima in the latter range were mostly found at stations located near a continental water body. The measurements have shown that the magnification curve having a maximum in the period range of about 1 see is the one most suitable for high-sensitivity seismographs. It is, however, recommended that the optimum magnification curve be calculated for each specific case, In calculating this curve, the most essential factors are the depen- dence of the seismic-noise amplitude on the period, and the require- ment that the curve amplitude on the tape must not exceed a definite limit. Paying due attention to these factors, a magnification curve can be selected which meets the requirements of the seismograph theory and yields the largest magnification on the tape for a given noise level. From five characteristic points on this curve (one on the left leg, ont-, on the right leg, and three near the top), all the basic seismogr&.ph constants can be calculated with sufficient accuracy. There are 4 figures and 4 Soviet-bloc references. (Technical Editor: V. Toby65. Card 2/3 t -, t~-' Z/023/61/000/003/002/00- A study of seismic noise ... D006/DI02 ASSOCIATION: Institute of the Physics of the Earth, Acad. Sci.. USSR, Moscow. SUBMITTED: December 7, 1960 Card 3/3 SIC 19/61/000/0 2 9/0' 7 '0 DO,-, 9/D'- 12 AUTHORS: Kirnos, D.P.; Moskvina, A.G.*, Shebalin, N.V. TITLE: On the selection oi rational methods of determining the constants of elEctrodynamic seismographs SOURCE: Akademiya nauk SSSR. Institut fiziki Zemli. Trudy, no. 19 Moscow, 1961,Seysmicheskiye ptibory, 91-112 TEXT: Rational methods of determininj> the constants Tj,T2, Dl, D9, W and V of the pendulum-galvanometer sy:3tem of an electromagnetic seismograph are proposed. These constants entirely d3termine the form of the frequen-y and phase response and are accepted at Soviet seismic stations as th,_-~ basi constants of seismographs. The periol of free oscillations of the galvano- meter T2 can be determined by a seconds timer with an error of -tot more than 1%, when- the oscillation periods of the frame of the galvanometer are shoit it is recommended to determine T2 by recording the free oscillations of the frame on hotographio paper. The pendulum period T, was found for the COK (SVK), '16 (V,9Kh) and &Y11K (VEGI.K) seismographs. The measurement of Card 1/4 3161 61/000/019/015/Ci? On the selection ... D039YD112 T1 should be done at C,2 / 0.1 and at P'< 10-3. Since dire,-t visual determination of Ti at ffl,