SCIENTIFIC ABSTRACT MEDVEDEV, L. N. - MEDVEDEV, M. YE.

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SCIENTIFIC ABSTRACT
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GRLSiEJVSKIYJ, I.I.; I-EDVEDEV, L.N. Preliminary data an the use of the coleepterolegical azu--lysis in studying Quaternary sediments of northern Yakutia. Sbar.st.po paleant. i bistrat.no.28:38-42 162. (MIRA 16:9) (Ya.kutia-Bee tles, Fossil) (Yakutia-Geology,Stratigraphic) lci @-, ; I -, "i. - ., 1@ . . - - 1. -- @ -:. @ : 71. - c . . -,: e 7@ p - .., --- 1@ - . .1 '. I-- . f : - . z . - li , - -, , n A . I o - I. ... - . - I - I r . - -,- ".@ 8 ; - - -11 @ 64. (I K -,,P A , I: - -) !EN-RAPF .IT, . I - - : .,- - -,@f . f, 17 CAT, - - . I I . _ - @ L @Nt--! s-,e,:-e3 rZ . -. - ; @ 'an, I , : , - - , 1:1 : ". . @ 1 ri v ,,, 0 -, I @1- , " !-@ t -.: . . . 5F '. - rev spacie3 of le@jf. "ne 1-3 tera, lahrys--lmel lr@m the Far nauk rj L 'I., KEMMT, L.N. Survey of Cryptocephalus species of 'he C. macrodactylus Gebl. groupe Sbore ent. rab. no.208-47 1162 (MM 17 t7) S/123/60/000/02/06/015 Trans lat4 on froms Referativnyy zhurnal. Mashinostroyeniye, 1960, No@ 2, p. 96, *5702 AUTHORt Medvedev, L. P. 11 . V@` q TITLEj Investigating the Rigidity of the 1616 Screw-Cutting LatheB@ PERIODICALg Tr..Kuybyshevsk. aviats. in-t, 1958, No. 7, Pp. 135-148 TEXT: The rigidity tests of machine tools according to rD(,r(GOST) 7896-56 render it difficult to use the test results for the rating of machining accuracy. The author suggests a test method, the application of which makes it possible to combine the test results with the rating of machining accuracy. In the suggested method the ratio P :P jP - 1-OOgO.50; tO.25 instead of 1.00:0.58tO.OO of the GOST standard; tRe 5owxer arm is 50 mm instead of 25 mm, the stress is applied to the live center and not 20 mm lower as it is the case with GOST; the tail spindle sweep amounts to 60 mm, instead of 120 mm. The lathe spindle is loaded by the torque. The compression of the head and tail stocks are measured separately. The full Py acts only on the carriage, while only half this force is acting on Card 1/2 S/123/60/000/02/06/015 Investigating the Rigidity of the 1616 Screw-Cutting Lathes the stocks. The test results by the suggested method and by GOST should differ from each other. It is recommended to use the suggested method for check tests. If the rigidity test results by the GOST method are used for the rating of machining accuracy with the tail stock center, it is neces- sary to multiply the total rigidity near the head stock by 0.8 and the total rigidity near the tail stock by 1.15. For the rating of machining accuracy, it is necessary to know the rigidity of the main units, taken separately. The total rigidity by the GOST method should, after multi- plication by the correction coefficients, be divided among the units according to the presumed rigidity ratio of head stock, carriage and tail stock j@R:,Jca ' .00 : 1.50 1 2.00, which is recommended for the 1616 la @herejtalr=e 19 figures, and 3 tables. 1@ A. Ye. Card 2/2 MEDVEDEV, L.P. (Assist.Prof.Cand.Tech.Sc.) "Studyinp Rigidity of 1A616 Machines." report presented at the 13th Scientific Technical Conference of the Kuybyshev Aviation Institute, March 1959. S/123/61/000/001/009/015 AOO5/A0O1 Translation from: Referativnyy zhurnal, Mashinostrayeniye, 1961, No. 1, p. 40, # IB339 AUTHOR: _Medv"ax, L.P. TITLE: The Rigidity of the Machine Tool - Work-Piece Elastic System at Turning in the Chuck PERIODICAL: "Tr. Kuybyshevsk. aviats. In-t", 1959, No. 9, pp. 65-79 TEXT: When turning in the centers, the change In the shape of the processed work-piece due to deflection is opposite to the change in the rigidity of the machine tool and the processing errors may be mutually compensated, partially at or fully. When turning in the chuck, the change of the machine rigidity and th of the work piece produce the same error in the shape of the work piece and sum up always, Increasing the inaccuracy of processing. Tests conducted on the lathe IK62 (lK62) showed that the rigidity of the machine - work-piece elastic system decreases inversely proportional to the overhang of the work-piece with increasing overhang of the work-piece out of the chuck jaws, within the overhang limits 100-200 mm(neglecting the deflection of the work-piece proper). The two types Card 1/2 S/123/61/000/001/009/015 A005/AOOI The Rigidity of the Machine Tool - Work-Piece Elastic System at Turning in the Chuck of investigated chucks, the self-centering one TC-250 (TS-250) and the hydraulical one Fffl (GPI), showed the same rigidity. - There are 8 figures, I table, and 2 references. E, Dymova Translator's note; Thisis the full translation of the original Russian abstract. Card 2/2 HEDVEDEV. L.P. Relationship between the finish of machining and contact rigidity. Trudy Sem.po kach.paverkh. no-5:176-180 161. (MIRA 15:10) (surfaces (Technology)) , -@ , /I:- , I- -, @- - - " MSDV=SV# L.V.; RADZIVI1OV. Y@.N. @- @ " 194-j"Ilefir Low-frequency periodic oscilL%tors. Priborostrosuis no-5:29 97 '57. (Oscillators. Blectron-Tubs) (KLRA 10:6) AUTHORSt Medvedev, L.V., Felldbaum, A.A., 103-10-3/10 -FrVs-ner,_1_.Y_. (?Aoscow) TITLEs The Non-Linear Function Generator Possessing Only One Input. (Nelineynyye preobrazovateli a odnim vkhodom) PERIODICALt Avtomatika i Telemekhanika, 1957, Vol. 18, Nr 10, PP. 699-910 (USSR) ABSTRACT: The possibilities for the construction of a non-linear o4actron transformer with one input are investigated. The results of the elaboration of the basic types of non-linear transformers: com- bind with diodes, with diodes and triodes, and with compensation are given. The working method of this device and a description of th*P-1 apparatus are given. This is the result of a long develop- ment and it has shown positive results. The securing of greater exactness, stability and the extension of the class of the re- produced curves was solved by the introduction of the compensation principle. In the case of less severe requirements NP-1 should be used with diodes. However, if curves with great slopes and strong salient points are to be reproduced, it is more profitable to use NP-1 with diodes and triodes or combined MP-1. In special cases where increased stability is demanded at a small number of Card 112 partly linear approximation intervals schemes with pure com- The Non-Linear Function Generator Possessing Only One Input. 103-10-5/10 pensation can be used. There are 10 figures and 11 Slavic referf-- . @ ences. SUBMITTED: july 16, 1956 AVAILABLEt Library of Congress V Card 2/2 SOV-115-58-3-28/41 AUTHORS: Medvedev, L.V., and Fitsner, L.fl, TITTE: A Protection Device for Voltmeters and Oscillographs (Zashchitnoye ustroystvo dlya volltmetrov i ostsillogrefov) PERIODICAL: I Izmeritellnaya teklinika, 1958, Nr 3, p 79 (USSR , ABSTRACT: The described and illustrated circuit with silicon diodes has been experimentally tested by a class 1 microampereme- ter "M24" with a 100 mka range and 850 ohm internal resi- stance. Connection of the silicon diodes in parallel with the instrument did not change its readings in a temperature 0 range of up to +70 C, and input voltage exceeding 100 times the measurement range did not cause breakdown. The micro- amperemeter was subjected to only a fivefold overload. There is 1 diagram. 1. Voltmeters--@quipment 2. Oscillographs--Equipment Card 1/1 15(2) AUTHOR: -Medvedev, L. V. SOV/131-59-2-9/1f, TITLE: Mechanization of the Blank Transportation From the Press 'In the Furnace Lorries (Mekhanizatsiya podachi syrtsa ot pressa k- pechnym vagonetkam) PERIODICAL: Ogneupory, 1959, Nr 2, PP 83-84 (USSR) ABSTRACT: In 1958 S. S. Slavgorodsl-,iy, efficiency expert )f the Chaso,-*,'a r works presented the design of ail easily extensible tranopolter .ihich makes it possible to mechanize the transportation of 'I:e blanks from the press for half-dry pressing to the furnace carts /see scheme). According to the type of the press as well as to th@ amount of simultaneously pressed products the transporters can be used with a band width of 400, 500 and 700 mm. Furthermore, its design and working method are described in detail. At present, 9 of such transporters are beine in operation facilitating work and reducing the number of workers. There is 1 figure. ASSOCIATION: Chasov-Yarskiy zavod im. Ordzhonikidze (Chasov-Yar Works imeni. Ordzhonikidze) Card 1/1 MRDVEM- I -L. V. 1- 9 Ducks of the 'Oktyabrl " Collective Farm. Ptitsevodetvo 8 no.12:14-15 D '58. (KM 11:12) (Karmaskaly Di strict --Ducice) MKDVSDSV, L.V.. sootakhnik Labor productivity has increased five to six times. Svinovod- stvo 13 no.11:20-21 N '59. 04IIIA 13:2) (swine) MEDVEDEV, L.V. Wages based on milk yield taking in consideration the fat content of milk. Zhivotnovodstvo 23 no.2:40 F 161. (MIRA 15:1-1) 1. Starshiy zootekhnik Ministerstva sellskogo khozyaystva Bashkirskoy ASSR. (Dairying) (Collective farms-Income distribution) NR% AP7004751 SOURCE CODE: W0413/67/000/001/0046/0046 R: Zibrov, V. D.; Medvedev, L. V. INTO none LE: Phasemeter of ultralow electrical oscillation'. Class 21, No. 189942 RCE: Izobreteniya, promyshlennyye obraztsy, tovarnyye znaki, no. 1, 1967, 46 IC TAGS: phase measurement, phase M67-ER P 0-5 C/.Z 4 /7 r/o^) ;TRACT: Ali Author Certificate has been issued for a phasemeter to measure ultra- 1 i electrical oscillations. The phasemeter consists of input comparator circuits shape pulses while input signals are passing through zero, a trigger, a linearly .ying voltage generator, and an output memory circuit. In order to provide :omatic phase measurement directly in degrees, and to insure the independence of idings from the value of the direct component of input 5ignals, the linearly -ying voltage generator is designed as an integrating amplifier whose input is inected to the outputs of the frequency meter and an inverter, at the frequency :er output through the series networks which consisted of a diode and an input ;istor. The control key circuits are connected to the diode junctions. IGS) I 00DE; 091 SUBM DATE: 29jan64/ UDC- 621.317.77i MEDVEDEVO M. Jet plane of 1867. IUn.tekh. 7 no.l.-24-28 Ja 163. OGRA 16:5) (Teleshav, Nikolai Afanas'evich, 182&1895) (Jet planes-Patents) ---- MOVE:3-DEV, ji.A.-cTomok ) Role of pituitary hormones in regulating the motor activity of the bile-secretory system of the liver. Probl.endok.i gorm. no.1:39-45 162. (MIRA 15:8) 1. Iz kafedry normallnoy fiziologii (zav. - pm f. Ye.F. Izpin) Tomskogo meditsinskogo inetituta (dir. - prof. LV. Toroptsev). (BILIARY TRACT) (PITUITARY HORMONW) 33340 S/181/62/004/001/006/052 10411 B102/B138 AUTHORS: Medvedev, M. A., Anokhin, B. G., Skvortsov, I. M., Ko__r_o_tk_o-v-,__K-.S., and Myakinenkova, E. V. TITLE- Pecubwities in the grcwth, twinning and structure of germanium dendrites and abnormal impurity segregation in the process of dendritic crystallization PERIODICAL: Fizika tverdogo tela, v. 4, no. 1, 1962, 36 - 43 TEXT: The optimum conditions for growing long dendritic germanium crystals were studied. The twin structure of real dendrites was deter- mined and complete agreement was found between the twin structure of seeds and of crystals grown from them. Impurity segregation coefficients and the distribution of impurities were measured. The dendrites were grown by the Czochralski method (rate of linear growth 10 - 15 cm/min) and were 150 - 300 thick, 1.5 - 3 mm wide and 400 mm long. They were produced with varyi'png impurity concentrations, surface perfection and thickness. They could be divided into 4 groups according to twinning propertiest (1) Homogeneous twin structure right across; (2) homogeneous twin struc- ture, but only in the middle of the dendritei (3) cross-sectional twin Card 1/3 33340 S/18 62/004/001/006/052 Peculiarities in the growth... B102YB138 structure but becoming simplified toward the edges; (4) cross-sectional twin structure which becomes more complex toward the edges; up to 32 twins were observed at the edges. Billig's proposition (Acta Metall., 2, No. 1, 1957) that twinningmaybe caused by impurities was not confirmed; impurity concentrations of up to 1020CM-5 caused no additional twinning effects. However, a higher impurity has an unfavorable influence on the quality of the dendrites. The segregation coefficients were measured for In, Ga, Sb, and B in dependence on their concentration in liquid phase. In each case 5 - 7 measurements were made in the following ranges of con- centrations: In:2-1014 4-10 19CM-3, Ga:1-1014 _ 6-101 8CM-3, Sb:6-1013 - 2-10 20 cm-3, B:1-1014 4-10 19CM-3. In, Ga, and Sb show anomalously high 14 -3 segregation coefficients (Keff >1) at concentrations of 10 Cm , which fall smoothly with increasing concentration. At 10 18 - 10 20 Keff of Ga coincides with the equilibrium values. K of B reaches 0.5 at 1014 15 -3 19 _?ff - 10 cm and drops to 0.03 at 4'10 cm . The cross distribution of impurities was determined from the potential distribution, measured by Card 2/5 33340 S/181/62/004/00 I /OG6,'G=; 2 Peculiarities in the growth ... B1021B138 means of probes. The impurities were found to be nonuniformly distribute'l.; e. a. for In the concentration ratio c centr.; cedgec@21.10. There are 7 figures and 7 non-Soviet references. The four most recent references to English-language publications read as follows: A. Bennet, R. Longini, Phys. Rev. 116, No. 1, 1959; D. R. Hamilton, R. G. Seidensticker, J., Appl. Phys. 319 No. 7, 1960; R. S. Wagner. Acts. Metall,, 8, No, 1, 1960; J. W. Faust, H. F. John. J. Electrochem. Soc. 107, No. 6, 196c. SUBMITTED; juiy 6, 1961 Card MEDVEDEV, M. A. Mechanism o"f pathological bile secretion following a hypo- physectomy. Ti-udy Khab. med. inst. 23 no.2t68-70 162 (MIRA 16:1-2) 1. Iz kafedry fiziologii (zav. - prof. Ye.F.Larin) Tomskogo meditsinskogo instituta. I.T',DVFD!:VJq :I.p.. event rp,'a,se @, fever. Ti-..dy ',,E-" . Treatment to pr - - 1@ 1- 1. proped. vniltr. bol. no.3:171@`-121 I f7@4 - O/IIFA 19: 1.: @j C [:) 1q. f-@- KEDVEDIV. R.Y. Most satisfactory number ol blanks on a flat hosiery knItting machine. log. prom. 16 no-8:30-35 49 156. (MIRA 10:12) (Hosiery industry) (Knitting machines) PLUNGIAN, T.14.,atarshiy nauchnyy sotrudnik;.X3DV=., X.F.; TSITOTIGH, K.G. Rhythmic conveyers for the final output operations In the manufacture of nylon hosiery. Tekst.prom. 20 no.10:69-72 0160. 1. Toesoyuzrqy nauchno-iseledovatellakly institut trikotazhuoy promyeblennosti (for Plungyan). 2. Glavnyy inzb. Tushinakoy tritcotazhaoy fabriki (for Medvedev)- 3. Glavayy insh. Ivantey- evskoy trikot"hnoy fabriki imeni Dzershiaskogo (for TSitovich). (Hosiery) (Assembly-line methods) MEDVEDEV, M.F. New developments in the technology of manufacturing multicolored knit socks. Tekst. prom. 23 no.9:67-69 3 163. (KrRA 16:10) 1. Glavnyy inzh. Tushinskoy chulochnoy fabriki. (Hosiery) KIRSOV, Konstantin Gavrilov-ich; MEDVEDEV, M.F., retsenzent; GRACHEVA, A.V., red.; HATYREVA, G.G., fekhn. red.; SHOMIKOVA, T.A., tekhn. red. (Analysis of the production operation of a knit goods factory] Analiz proizvodstvennoi deiatellnosti trikotazh- nykh fabrik. Moskva, Gizlegprom, 1963. 133 p. (MIFLA 17:2) Frospects c)f tlr,@- -xr@inqfor: of 'he pr,)@@-.:ctlon of ho!@Jer-y frDir, Tekst. prom. 2. no." 34-37 N 164. By-nthetic b (MIRA '1.7@,12J nallchn--.-: !3 s I r@- c-,ra tl-PlIskogo lnsr,!trv@a ek I f:,-. s IOFFE, Iosif Grigorlyevich; MEDVEDEV, F.J., retsenzent; ZUWVEVA, I retsenzent; GABOVA, D.M., red. [Organization and planning of knit goods production] Orga- nizatsiia i planirovanie trikotazhnogo (viazallnogo) proiz-- vodstva. Moskva, Legkaia industriia, 1965. 23? P. (I,I,IRA 18:5) KKDVEDEV,M. I. Determination of moments of Inertia of tractor engine flvvheels. Avt. trakt. prom. no.6:14-17 Je '55. (MLYA 8:9) 1. Kharlkovskly politekhnicheskiy institut imeni T.I.Lenina (Tractors--Engines) flame: bWIMEV, M. I. Dissertation: Degree: &I, &I- CIt Affillattem k*e- B-214 , Place: Catepillar gearing of tr-jAors Doc Tech Sci Hin Higher Education UkrLinian SSR, Kbp-r'kov llolytech- nical, Inst imeni V. I. Lanin 1956, KharIkov Source: Knizhnaya Leetopis'. No 4), 1957 CAUYFFMT, KikhaU-Ivanovich; KRISTI, K.K.p prof*@ doktor tokhn.naulc, --.- ---,r.etaenzent; ONISHCHENKO, N.P., inzh., red.; RUIMSKIT, Yaj., tekhn.red. [Crawler tractors] Gueenichnoe zatseplanie traktorov. Kooky&, Gos.nsuchno-tekhn.izd-vo mashinostroit.lit-ry, 1959. 247 p. (KIRA 13:3) (Crawler tractors) MEDVEDEV, M.I. Prospe@-tq of the development of agricultural tractors. Trudy KhPI, Ser.ma-sh. 19 no.15:32-4.9 '59. (MIRA 14:9) (Tractors) MEDVEDEV, M.I., doktor tekhn.nAuk; KODENKO, M.N., asaistent InvestigatI4 dynamic indices of the idler wheel of the crawling gear of a tractor. Izv. vya. ucheb. zav.; mashinostr. no. 3:124-136 161. (MIRA 14:5) 1. Khartkovskiy politekhnicheskiy institut, (Crawler tractors-Dynamics) MVEDNV. H. (leningrad). submit to the brave. Prom. koop. no.12:32-3y D '57. (Ifuilding--Kaintenance and repair) (KIaA 10:12) DSKMAR, Samail Bentsionovich, inzh.; KAYBORODA* Ivan Ilikolayevicho inzb WNDJ67, Kikhatl Ivanovich. inzh.; ROMMIN. Illy& Aleksandrovich, .- Tmnd-;takhn-.i16j&,,- KRMRTAIISKIT, Kikhail Semenovich, kr-nd.takhn.nauk; TUROVSKIT, B., red.; ZELENKOVA, To., takhn.red. (Useful ceramic construction elemental Zffektivnye konstruktaii iz keramiki. Kiev. Goa. isd-vo lit-ry po strolt. i arkhit. USSR, 1958. 355 P. (MIRA 12:2) (Ceramics) V-W-VXW-JI-4Nedviediev, 14.], inzh.; KULIKOV, L., arkhitektor Using industrial methods in building apartment houses in Kiev. Froak. i bud. 1 no-1:7-13 0 159- (KIRA 13:12) (Kiev-Aprtment houses) (Precast concrete construction) MMVFIDNV,' M., inzh. 1@irst Congress of the International Council of Buildin& Zhil. stroi. no-7:26-28 Jl 160. (HIRA 13:7) (Rotterdam-Building-Congresees) TAIROV, Vladimir Dmitriyevich; VOLIVICH, Nikolay Iosifovich; MWVWEVq Mikhail Ivanovich. Prinimall uchastive: BOCHKOVSKRAl N.L., - @HELI, P.A. . glav, arkhitektor; ALEKSAIIDROVSY.IY I A. red.; ZUMKOVA9 Ye.p tekbn. red. [Built-up roofs] Sovmesbchenrqe pokrytiia. Kiev, Gos. izd-vo lit- ry po stroit. i arkbit. USSR, 1961. 74 P. (MIRA 14:9) 1. Rabotniki flauchno-issledd-vateltakogo institute stroitelInykh konstruktoiy i Nauchno-issledovatell'skiy institut eksperimentall- nogo proyektirovanivs. Akademii stroitel'stva i arkhitektury USSR (foy Tairov, Vollvick, Medvedev). (Roofs) YELIZAROV, V.D., kand. arkh., red.; VEDEV, f. 1. _L__1 inzh., red.; DEKH TYAR, S.B., nauchnyy red.; SLIMKO, B.I., red.; NARIVSKAYA, A.L., tekhn. red. [Laxge-panel housing constructionl Krupnopanellnoe zhilishchnoe stroitellstvo. Pod obshchei red. V.D.Elizarova i M.I.Medvedeva. Kiev, Gos.izd-vo lit-ry po stroit.i arkhit. USSR, 1961. 194 P. (I-I IRA ll,: 12) 1. Akademiya budivnytst-va i arkhitektui-y URSR. 2. Deystvitellnyy chlen Akademii stroitellstva i arkhitektury USSR (for Yelizarov). (Apartment houses) (Precast concrete construction) YABLONSKIY, D.N., kand,arkhitektury; SHEPETOVA, I.M., arkhitektor; HEDVEDEV., MI.I., inzh. Numerical foundation of a series of derivative moduli. Izv. AS:LA 4 no.2.77-81 162. ' (MIRA 15:9) (Modular coordination (Architecture)) 40 NED T, M. CHEMELINITSM, A,, UDF Standardization of buildliags and structures amoqg branches of industry. Prom.stroi.i inzh.soor. 4 no-5:44-49 S-0 162. (MIM 16sl) 1. Direktor Nauchno-iseledovatellskogo instituta eksperimentall- nogo proyektirovaniya Akade@ii stroiteltstva i arkhitektury Ukx6SR (for Medvedev). 2. Glavnyy spetsialist sektora, Hauchno- isoledovatellskogo instituta, eksperimentalino 0 proyektirovantya Akademii stroitel'stva i arkhitektury UkrSSR Ifor Chechellnitskiy). (Industrial buildings-Design and construction) MEDVEDEV.,--M. Important problem in the organization of work and production. Sots. trud 7 no.5:11-3-119 My 162. (MIRA 15:51": 1. Nachallnik inspektaii po meteL-Uurgicheskoy i khimicheskoy promyshlennosti Gosudarstvennogo komiteta Soveta Ministrov SSSR. po voprosam truda i zarabotnoy platy. (Steel industry-Quality control) YEROFEYEV, L.M., inzh.; TSAY, T.N., inzh.; BABAYANTS, A.A., inzh.; KARAGOD, V.P., inzh.; MEDVEDEV, M.K., inzh. Instruments developed by the Kuznetsk Scientific Research Institute for the design and construction of mines in the coal industry for determining rock movements and the intensity of rock pressure. Trudy KuzMahakhtostroia no-1:80-84 163. (MIRA 17:1) MEDVEDEV, M.L. @@thod for dynamic vectoreardiographic study. Kardiologiia 2 no.l: 89-92 Ja-F 062. (MIRA 15'-5) 1. Iz fakulltetskoy terapevticliegkoy kLiniki (zav. - prof. A.A.Kedrov) Leningradskogo sanitarno-gigiyenicheskogo meditainskogo instituta. (VECTORCARDIOGRAPHY) TRUSIMN9 Hikolay Pavlovich;--MAHWEM,-K.14@1 red.; KUZNWSOV, P.Veq red.; PONOMAREVA, A.A.,, tekhn. red. (organization of wage payments in industrial enterprises] Organiza- tsiia zarabotnoi platy na promysblenrqkh predpriiatiiakh. Moskva Gas. izd-vo planovo-ekon. lit-ry, 1961. 76 po (HIRA 14:7@ (Wage PwIment systems) 14XDVMV,V, 4. 1-1. Blastomogenic properties of the milk factor following prolonged preservation in a dehydrated state. Nsdych.zhur.24 no.3:36-40 154. (HLRA 8:10)' 1. Inatitut normallnoi ta patologichnot morfologii Akadomii medychuykh nauk SM. viddil onkologii. (H90PLASKS. experimental, milk factor. carcinogenic off. after prolonged proeorv. in dehydrated state) (BRPAST. neoplasna, milk factor, arcinogenic @ff. after prolonged lyreserv. in dehydrated state) MEDVIWIQW. N.Y.- HKTTMVA, Ye.N.; ZHIL'TSOVA, L.Ta. - I -WW"d;iU Plastic scintillators with oxazole-group fillers. Prib. i tekh. ekgp. no.l.,55-57 Ja-F 157. (MIBA 10:6) (Scintillation counters) 1,4 Ov, M. N. -3.,;vey-va, Ye. N,I ZI, J-1 '-sova, T. e Volume P iC 11y:,,tory 'bDl'shi_!,La ob'Je-iov) "-)'D iA L : P-, --I-bory i Te':h-oJ_'.-.. 1)5,-, Nr T'I.@ preparation of large plastic @a-ataly:,,_,d high-tem,,)craLure polymeriza Lion of is Je.3ci-ibed. The sy@te:.,i used was a modifica@i,:)n of of Rcf.4, 11.!hich v@as intended fir small volumes onlj; i@; ca- ive volumes up to 3 litres. For these large -,.artic- U @aid to purifyin@@ the styrene. F*@r-t U-13 Lar attention was ::ater was removed with CaCl 2 , and the styrene dist--*--'l---C-- off in vacuo, the temperature and pressure in the distillat-i--ri .'!ask being 40-500C and 20-50 nm H6 Irespectively. T',--- _.oly,cierizat-ion was sliF T'--is also removes the ir-*,@@b@iiu-or .5ht. r1uot, etc. The doubly-distilled styrene is @-Go ,-,@e :-,olynarization amj)oule sc@en in Fi@7-.l; t1ne a-7ilnoil- -..--_.s -3f @,@j -Jass. Dissolved oxygen is removed bj bubblin@ nlla,@,@en -nd then evacuatinS, The am-joule is sealed off 2Md ',-@atcd on a water-bath till the activator dissolv,@o cD-mpleUel,1, a@d '61ien transferred to a preheated glycc:rol bath at ?0-'@00(', Lar,-@--- Plastic Scintillators 4U;ie tem--)erature is then raised to 200 QC ov@:r @0-10 there until 3-4 hours aft--r t'ia styre-le @L C :-I --'@l r C! a S: -! dto bubble. The temperature is tl-ien slo%--ily re-!'ac-d 0 100 C, and the bath then switchod off. Total -i-zired 4-5 days, The ampoal-2 fractures and the ,..,ashe- .q the recovered nla3tic. a-NPO, I froT I POPOP, T-PB and TPF can all be used. The res-lts with these are given 11-ic Table, the compounds beinS: 1)TPB, 2) and @) ter-)henyl 4) terphen,71 + TPP, 5) terphen@,l + quaterphenjl, GD) t,r- and ?) anthracene. The no.:,-,-t two columns ---ive t'ie ,?,'--i e ny 17 6 di, 'iensions (diaineter and thickness), the third and f '-)!ar t h bl--ing the Dulse height (i@elative to -3tilbene) for WTI@, y- for scj-ntillati-:)ns at the ni@ar and far end--, and collmin the light loss in an 00 --im lenGtl'i. Fi,@;.3 3- C'@-- rd 2/3 3OV-120-56-3-9/33 Vol@uie Plastic Scintillators t-liat the li6ht absorption does not fall off nearly as ra,pidly with lem@th as calculation would indicate. Fis.2 neralises some of the data in the Table. The paDer contains 3 figures, 1 table and L@ references, 3 of wn-ich C3 are Soviet and 1 En-lish. '-SOCIATION: Ob"yedinennyy institut yaderny-1kh issledovaniy : _3S (United Institute for Nuclear Inve_stiE@ations) 3UKTITTED: August 1), 1957. 1. Phosphors--Preparation 2. Styrene--Polymerization 3. Styrene (Polymerized)--Applications 3/3 SOV/120-58-4-8/30 , . S. . Fj 1 j-Drov. P. I, and ye AUTHORS:17.ledvedev I., N S:)',I-olova Tsislyak, 0. N. TITLE: Time Characteristics of Photo-IMultipliers (Vremennyye kharak-teristiki fototimnozhiteley) V, @: q . 3 --! -7 -7, PIERIODI"@AL: Priborj i teklraika eks:-,arinenta, 1)5 , N r 4, (USSR) ABSTRACT: Ln inv-;;ti-ati3n was -e of Ulne rise times of t-rie 0 .-ipliers leadingr e@:-es of -'-'u1ses from t-lie followin- photom-alt D developed by N@ S. Khlebni1.1ov: FEU-lV,, FEU-.2V, FEU.iB,---V Photomultipliers FEU-lV and F.EU-2V have semitransparent photocathodes 40 mija in and differ fro-i-I each other -Ln the nwaber of dynodes,, Tlae photocath.:)de :Ls LiAde. of only 4 SbCs and its maxim,,-im spectrai sensitivity is at 4000 A Tlzie amplification coefficient for the FEU-1V is about 5 x 105 and for the FEU-2V about 2-3 x 106. TAe FEU-lB2V has a larger cathode, na-raely-,._30 mm diameter and an amplification coefficient of abDut 100.. The photomultipliers are @,(, c.--)n.- structed that the electron collection from the nhotor@athode Card 112 is 100%, Byqeriments nave shown that the rise (C @--oo -:"OV/120-58-4-8/30 Time Characteristics of R',-otomultiDliers of the leading edges of pulses from the 3 photRmuiti are 3.5 x 10-7 for the first two and 4.5 x 10' for t-" i'rd one. The photo,-nultiDliers may be used in acintillati,)n -----@n- ters and Cerenk-ov counters in fast coincidence circuit:3, It is necessary to screen the counters from external elec'-T'03- ma--netic fields by mea-ns of a-,propriate electromaFnetLc screens, N. S. nlebnikov) A. Ye. Melamid and A, M. Potapov are thanked for supplying the photomultipliers and taking C) C3 part in discussions. There are 4 fiSures, 4 tables and no references. ASSOCIATION: Wyedinennyy institut yadernykh issledovaniy (United Institute for Nuclear St,idies) SUBMITTED: October 30, 1957. 'lard 2/2 AUTHORS: Medvedev, L. N., Ma`tveyeva, Ye. N., .8-1-1o/2o Zhilltsova, L. Ya., TITLE: Amplitudes of the Impulses of Plas'.ic-Scintillators @,ith Va- rious Activators (Amplitudy iN1j)Ul'30V Ot lastichesk,ikh stsin- tillyatorov s razlichnymi aktivatorami) PERIODICAL: Izvestiya AIN SSSR Seriya F-iziches.-aya, 1958, Vol. 22, Nr 1, 1) '; -4 1, - 117 ( US S It ) A.3ST-I?iCT The purpose of the present viork was the production of plastic- -scintillators of a large circumference with gooa transjarence for fluorescent radiation, and a maxi;:,u:a ratio 3E/T yield of energy the duration of scintillation). The impulse-a;aplitude in a plastic-scintillator is not only dependent on tht-lactivator- concentration, but also on the pArity of the sol-ent and that of the activator. The influence exerted by benzoylperoxide u,)on the impulse-amplitude was investigated here and data for some samp- les which were produced with catalysts and without catalysts arc, ,-iven. It is shown that the plastic-scintillatGrs which were pro- duced without catalysts bring about an increase i:i the iml.julse- a;-,i,-.,litudes by ^_,lollu. The samples of p-terphenyl, :@roduced with- Card 1/3 out catalysts, yield impulse'am-,litudes of the order of ma-ni- Amplitudes of the Impulses of Plastic-Scintillator3 'I'. ith Various Acti.a- 48-1-b/2o tors. tude o,6 of stilbene, but for fluorescent radiation t@e.; are n-t transparent enough. Some substances of the oxazole-class also investigated. These were used in plastic-scintillators as well as base-fillers as as additions to p-terphenyl and 2,5-di- ph(znyloxazole. It is shown that in these substances the maxi- mum amolitudes are attained at an activator-concentration of 0,5 -@ 1,o ',@. The best results were attained in saL;--)les with PBD as a@tivator. The sample with 1 % PBD in polystyrene without benz(Zzlperoxide shows impulses whose amplitude amounts to o,q with reference to stilbene. The 3UMPlC with 1% uNPO (i.e. 2- (1-napht@yl)-5-phenyloxazole) in polystyrene without benzoy.1- peroxide yields impulses whose amplitudes amount to 0,73 with reference to stilbene.- PBD is 2-phen,,,1-5-(4-biphenyl)-1,3,4- oxydiazole. POPOP is 1,4-di[2-(5-phenyloxazolyl)j benzene. It is finally shown that the plastic-scintillators which are pro- duced with p-terphenyl and luminescing additLons of POPOP,BBO and aNPO and which possess a comparatively good transparence for charactc@riAtic radiation, can be successfully used for scintill- ation-counters.BBO is 2,5-di-(4-bi4phenyl)oxazole. There are tables, 'j references, 1 of which is 51avic. Card 2/3 Amplitudes of the Impulses of Pl@xstic-Scintillators W'ith 48-1-1o/100 Various Activators. ASSOCIATION: United Institute for Nuclear Research All USSR (Ob"yedinennyy institut yadernykh issledovaniy Akademii nauk SSO-R)- AVAILABLE: Library of Congress 1. Crystals 2. Benzoylperoxide-Application Card 3/3 24(7) -2, "T"OPS Y TITLE: Luminescence Spectra of JTP@' -ind .`0?0P in Various Solv-,-nts (S pektry lyumi nertsen t sj i C! i "O?Oil v r,-izl i chn r-, St - voritelyakh) .-,7T .'RIOD-CAL Izvestiva ' k-idemii r,tl:k :,-R. 3epi-;a fi7.icheo-..-y-1, lnc -I Vol 23, Nr 1 , o8 1 'il STR '.CT: The present ,n-er gives the resillts of invest co- cerning the yi@-ld and tho spectra of plqrtic scintill--tors with uNPO and FOPOP as basic activators ar '(I als- ar, adeliti-@n to the solulions of parnterphenyl in toluene, and (211'O= 2-(l-n-,ii~hthL,1)-5-P"e,-:".--l-ox,"zol!? P-;!-OP= 1,4-li-(5-phen7l-2-ox,.izolyl-bpnzene) S,,k.-ctr,q. f-!re carried o t with a w1riation of tne crricentr.@ior. of cJIPO rind POPOP, an(,] -nW. cor.-IO.a-t conco., trat ion variation of t',e solvpnt. The lifferprt :"Ie-tra .-,ith 7" and uNPO are ohown by a fi-Ilire. The .,.ectra -@.-e not i;-Z'up-cel by the -.olvent:-- The a@lition of n-ter-ph-nyl incr.-@-I.@on t'-.c Card 112 luminescence yield in coml-.@-rison to samn'es c-@:t inin,- aNPO Luminescence Spectr? of aNPO and 7C'C'@! in Variou@ Solvents and POPOP as bisic activ--tors. In accordance with ex:3ti-.,@; conceptions (Refs 1,2) it is assumed that here an excit tion ererf-y trarsfer from the solvent to t1- 'e luTinescent i:npurity is concerned. The intermediate position of the excit.tion lcvel of n-ter-Dhe-'.yl compar-d with colvents !irr! t'ie i.-.puritj thus increases the possibility of transition of -ner,_y fro- the colvent to the i.-.ipiirity. There @ire 2 fi@lires, 1 t'll"'le, and 2 references, 1 of which is Soviet. Card 2,'2 S/089/62/012/005/008//014 6 B102/B104 AUTHORSs Butslov, It. M., Medvedev bt N Filippov, P. I., Chuvilo, 1. V., TITLEt Recording of the Vavilov-Cherenkov cone from isolated particles PE--IODICALs Atomnaya energiya, v. 12, no. 5, 1962, 412 TEXT: The Cherenkov cone LAbstracter's notes Identical with Vavilov- Cherenkov cone, from single cosmic particles was recorded with an electron-optical converter controlled by scintillation counters. The radiation cone was made visible on a photographic films the picture shows a central light spot surrounded by a ring of other light spots, partially flown together. The broken shape of the ring 18 due to the fact that the number of photons per mm2 did not exceed 15. Examination @f the photograph shows that the Cherenkov light is non-uniformly istributeds in addition to the separate spots, a light arc is formed, ts central angle being the maximum for the emitter material considered. rd 1/@ S/089/62/012/(,'05/008/014 qecording of the Vavilov-Cherenkov ... B102/B104 The effect discovered will be further investigated. There is 1 figure. SUBMITTEDt January 29, 1962 Card 2/2 'N ACCESSION NR: AR4046003 3/0058/64/000/007/AO21/AO21 SOURCE: Ref. zh. Fizika, Abs. 7A206 AUTHORS: Medvedev, M. N.; Shafranov, M. D. TITLE: Use of film scintillators to extend the spectral sensitivity of photomultipliers and to record strongly ionizing radiation CI--ED SOURCE: Sb.,Z!-,sin'Ui11yarory* i stsintillyats. materialy*. Knarlkov, Kharlkovsk. un-t, 1063, 187-190 TOPIC TAGS: thin film, lonizat-lon detector, Bcintillator, photo- muliuiplier, coincidence counting -.s propo,-,e,! t--) --Mp] Jy !3c'1n!-'1i1 a @i I te d o n a i) h oc a ', h od e 1 rr. @ c c e n z:-jtomult 14P, i'Le rs JI-nto the fa r u I -.r@av Ire- 1.3r, .The opt"Imal -L'Jm ,,;as found to contaln 2% terphenyl. plu..-. 0.1% j?OPOP in poly o tyre.-,e The sensitivity of the cathode w1th flim, relative to the maxim'um sensitivity of the photocathode of ti-le FEU-1()M pliotomultiplier with- Card 1/2 ACCESSION Iffl: AR4046003 out the film, amounts to 30% In the -'-,@O re-gion, and 18--23% at 220 nm. The optliiaJ Ie de-excil 18 (2' ) , 1'.@ Uatlon time x i--aultiplier with ascinti'llatin'-.-, f '- 1 M -NM, regLOrl 18--23% in nm film thickneas 12- rim. The use of a -hatc- 17, C;-' C 0 1 r@ C Id e I-I CC I r r' I Lreatly simpilfieo rneasuremen@t; )f stui-,Jriw@ly lonIzed radlations Ir large gamma fields or in the presence. of faot charged particleo. T. Razumova. SUB CODE: NP E24CL: 00 Card - 2/2 MATVEYEVA, Ye.H.; W'DVEDKV, M.N.; RUBINA, O.G.; SHAFRANOV, M.D. Luminescence spectrum of pentaphenyl. Izv. AN SSM. Ser. fiz. 27 no.6:763-764 Je 163. (MIRA 1637) 1. Laboratoriya vysokikh anergiy Ob"yedinennogo instituta yadernykh issledovaniy. (Pentaphanyl--Spectra) MATVEY9VAP Ye.N.; MDVFDEV, M-N-; PISAREVA, M.G.; SHAFRANOV, M.D. Luminescence of p-vinyl biphenyl. Izv. AN SSSIR. S6r. fiz. 27 no.6s765-766 Je 163. (MIRA 16-7) 1. Laboratoriya vysokikh enargiy Ob"yedinennogo instituta yadernykh issledovaniy. (Biphenyl-Spectra) -L:'3350-@65 A SUB -CODE ---@OC 777@, Vero -,-Ce :In-- e- presz!40- m_S,- in-Atrerx@' acintilla=4 -a tances'o- .@-The:xecom,4endw gm ater than - 16ti, 0' fthi _'we igbt of itba scm attdd "with -liquid s"w_ @@tainin amomrtt@-ofjsolutiimfi -is equal -to @or, - Ellatat. After- I 7hour, vacuum lxva4j@@-t- -33505-65. SICK 303893::---, DOLGOV, N.V.; KOraW, M.P. Retenti6fl ofoom'Plement-fixing antibodies in q fever cou, lescents, Zhur.mlkrobiol.,optd.1 I . 30 no.12:124 D 159. (KM 13:5) 1. Is Vorouezhskoy oblastuoy sanitaruo-epidemlologicheskoy stantati. (q yzm) (AMIGINS AND ANTIBOIDIM) BF. I YKJ. B, P. . dots en'. d y o f th P s a f L, @- t M r 3 Karabas@. M.4ning ani s,; i nl@ -,)m t@ n,: z-,r zav.; gor, znur. 6 n c .14 1 P-@*% - ' h i:-,v @w-h gr. i t o f o r y r. oir. g i e :3 r t 1 K f @droy gcrr,,()7 F- k t r@) t-t@ MEDVEDEV, M.Ye,; BROFMN, N.V. Use of hot compressed air in the Kiruna Mine. Izv. AR Kazakh. SSR. Ser. gor. dela no.1:109-110 '58. (MIRA 16:5) (Kiruna Region, Sirreden-Boring-Cold weather operations ) L 2Z08-67 EIIT(I)/Evir(-H!)ZT/gKIPCt)/r-TI --IJP(gl ACC NR' AP6031443 SOURCE COM UR/0056/66/051/00210517/0527 AUTHOR: Izyumov, Yu. A.; Medvedev, M. V. DRG: Institute of the Physics of Metals, Academy of Sciences SSSR (Institut fiziki metallov Akademii nauk SSSR); Ural State- University. (Ural'skiy gosudarBtvennyy iniversitet) rITLE: Impurity atom in a ferromagnetic crystal with negative exchange Interaction 3OURCE: Zh eksper 1 teor fiz, v. 51, no. 2, 1966, 517-527 6 ropiC TAGS: impurity atom, spin wave theory, ferromagnetic material, matrix -!lement, spin system, crystal property, temperature dependence @BSTRACT: A spin wave theory is developed for a ferromagnetic cubi@-crystal .ontaining an impurity atoin which has a negative interaction with the matrix. it is ;hown that the ground state of such a crystal is magnetically inhomogeneous due to he zero oscillations of the spin system. This means that the impurity spin projec- ion on the direction of the spontaneous moment is smaller than its maximum value, Lnd the decrease is compensated for by a nonuniform contraction of the matrix atom CrA-W 02198-67 X NR3 AP6631,143 pins. It is shown that the effect is relatvd to the s-type spin system oscillations n fhe state terminology used for describing a crystal containing an impurity with @rromagnetic interactions). rhe temperature dependence of spontaneous crystal iagnetization in the range of validity of the Bloch law is calculated and the :)rresponding results are compared with the case of a ferromagnetic impurity. leasurements of the saturation magnetization at zero temperature and the tempera- ire dependence of 'the magnetization of a crystal containing a low impurity concentra on permit the determination of the impurity atom spin and its exchange with the iatrix. Orig. art. has: 54 formulas. [Based on authors' abstract). [NTJ UB CODE: 20/ SUBM DATE: 04Feb66/ ORIG REF: 006/ OTH REF: 003/ 2/2-_e--, kCC NR% AP7005126 SOURCE CODE: UR/0126/66/022/004/0506/0513 k1UTI1OR:Izyumov, Yu. A.; Medvedev M. V :)RG: Institute of Metal Physics, AN SSSR (Institut fiziki metallov AN SSSR); Ural State University im. A. M. Gor'kiy (Urallskiy gosuniversitet) TITLE: Temperature behavior of an "antiferromagnetic" impurity spin in a ferromagnetic matrix SOURCE: Fizika metallov i metallovedeniye, v. 22, no. 4, 1966, 506-513 TOPIC TAGS: crystal impurity, antiferromagnetism, ferromagnetic material, spin system ABSTRACT: In a previous investigation (FTT, 1966, 8, 2117) the authors developed an appro- t'j ximate theory of the temperature behavior of an impurity atom in a ferromagnetic crys @'l in the presence of a positive exchange coupling with its envirom-nent. In these conditions i@e impurity spin is always oriented along the spontaneous moment of the crystal, but given certain. relationships between the parameters characterizing the matrix and the impurity, the tempe- rature-induced change in the magnetization of the iinpurity atom may markedly differ from the change in the magnetization of the atoms of the matrix. Now the authors calculate with the Card 1/2 UDC: 538.22+648.4.01 ,CC NR: AP7005126 id of Green's temperature functions the magnetization ofthe impurity atom in a ferromagnetic @rystal over a broad range of temperatures in the presence of a negative exchange coupling etween this atom and the matrix. Owing to zero oscillations in the spin system with an antifer- -omagnetic orientation of the impurity spin, contractions of the z-projections of the spins of he impurity and matrix atoms occur in the ferromagnetic crystal, thus leading to inhomogenei- y of magnetization of the crystal in the fundamental s@ate. It is shown that in the case of a feeb y coupled impurity its magnetization may sharply diminish at a temperature at which the mag- Letization ef the atoms in the matrix is still close to saturation. As a result, given a suffi- dent concentration of the impurity, the spontaneous moment of the crystal will increase with emperature in the low-temperature range. 'The authors are indebted to Ye. A. Turov and ). B. Sokolov for discussing the findings of this project. " Orig. art. has: 39 formulas. MB CODE: 20, U/ SUBM DATE: 05Feb66/ ORIG REF-. 005/ OTH REF- 002 :ard @ FWTf(i ) /FUT(I T SOURCE CODE: UR/0181/66/008/007/2117/2123 AUTHOR: Izyumov, Yu. A.; Medvedev, M. V. ORG: Institute of Metal Physics AN SSSR (Institut fiziki metallov AN SSSR); Ural State University im. A. M. Gor1kiy, Sverdlovsk (Urallskiy gosudaretvennyy universitet) TITLE: Temperature behavior of impurity spins in a ferromagnetic matrix SOURCE: Fizika tverdogo tela, v. 8, no. 7, 1966, 2117-2123 TOPIC TAGS: spin wave, spontaneous magnetization, saturation magnetization, ferromagnetic structure, crystal impurity, Green function, temperature dependence ABSTRACT: This is a continuation of earlier work (ZhETF v. 49, 1887, 1965), where a spin-wave theory was developed for a Heisenberg ferromagnet containing a magnetic impurity atom. In the present paper it is shown, using two-temperature Green's func- tions, that under certain conditions, when the exchange coupling between the impurity and the matrix is much we4ker than the exchange coupling of the matrix atoms, the spontaneous magnetization@@of the impurity atom in the ferromagnetic crystal has a specific temperature dependence./ It can become very small at temperatures at which the magnetization of the matrix atoms is still close to saturation. Such a behavior of the impurity spin is due to the existence in the elementary-excitation spectrum of a narrow resonance level lying at the bottom of the band of the quasicontinuous exci- 144-7 9 - 6 7 ,CC NRi AP6024476 ation spectrum. This level corresponds to resonant states of the spin excitations Ith maximum at the impurity atom, so that these states begin to fill up rapidly at emperatures at which the average thermal energy is of the order of the resonance- eve! energy, thus ensuring a sharp decrease of magnetization of the impurity lattice oint. The distribution of the magnetization around the impurity lattice point is alculated. Orig. art. has: 33 formulas CODE: 20/ SUBM DATE: l6Dec65/ ORIG REF: oo4/ OTH REF: 005 2 NRI AP7002732 SOURCE CODE: UR/0126/66/022/006/0801/0809 'HOR: Izy=oV, Yu. A.; Medvedev, M. V. .1: I;stitute of etal Physics, AN SSSR (Institut fiziki metallov AN SSSR); Ural c Univorsity im. A. M. Gorlkiy (Ural'skly gosunivernitot) LE: Neutron i attering in a ferroma 'Coc gnetic crystal containing impurities with negative ,iange coupling IRCE: Fizika metallov i metallovedeniye, v. 22, no. 6, 1966, 801-809 1 PIC TAGS: fer-tomagnetic material, neutron scattering, spin wave, magnetic crystal A., Medve- 5T CZ TI is work is a continuation of a previous investigation (Izyumov, Yu. P M. V. ZhETF, 1966, 51, 517) dealing with the spin-wave theory of a ferromagnetic stal containing an impurity atom with negative exchange coupling with the matrix, with the erence that it deals with the theory of the inelastic scattering of neutrons in a ferromagne- crystal containing a small concentration of impurity atoms with a spin and exchange inte- Ls differing in value from those in the original crystal. (Owing to zero oscillations in the i-system, the fundamental state of such a crystal is characterized by nonuniform distribu- 1/2 UDC: 669.017:539.125.5 NRi AP7002732 of spin projections onto the direction of the spontaneous moment about the impurity atom. a the spin projection of the antiferromagnetic aligned spin does not equal in absolute fi- ,s its maximum value S' and is somewhat shorter, this contraction being compensated by c)verall spin contraction of the atoms of the matrix. An investigation of magnetic noncohe- @ elastic scattering of neutrons on such crystals in the presence of low impurity concen- loris, in the small-angle region, makes it possible in principle to determine the form- Dr of the nonuniform distribution of the magnetic moment in the neighborhood of the defect. -xperimental determination of the inelastic neutron scattering cross secti, ns in such a ;tal would make it possible to investigate the structure of spin excitations in the crystal. e, however, this question is investigated theoretically alone.) The case o@ negative ex- ige coupling between the impurity and the matrix is considered, with the impurity spin in fundamental state being oriented in a direction antiparallel to the direction of the magnetic -r of the matrix. Compared with the case of ferromagnetic impurity, neL.. -,on scattering uch a crystal displays a specific feature; the noncoherent part of the cross section has a rp peak even at transition energies lying within the quasicontinuous spectz 1M region. be- 3e states of a special kind, whose excitation enhances the spontaneous moment of the ,tal, participate in the scattering. Recording this peak makes it possible to determine the iange integral impurity-matrix. Orig. art. has: 38 formulas. I CODE. 20 / SUBM DATE: 13May66/ ORIG REF: ro-/ OTH REF: 001 ACC NR, AP6037071 SOURCE CODE: UR/0056/66/o5l/c..-,_ 5/142@j_1429_7- WTHOR: Izyumov, Yu. A.; Medyedev, M. V. )RG: Institute of Fhysics of Metals, Academy of Sciences, SSSR (Institu. fiziki netallov Akademii nauk SSSR) PITLE: Incoherent scattering neutrons in a ferromagnet and the problem of' recon- structing the magnon spectrum 30URCE: Zhurnal eksperimental'noy i teoreticheskoy fiziki, v. 51, no. 5, 1966, 1423- L429,'-. rOP IC TAGS: neutron scattering,@ inelastic scattering, ferromagnetic material$, mag- ,ion, Green function, scattering cross section USTRACT: A method is developed for determining the7*state density in thf- Magnon spec@ trum of a ferromagnetic crystal from data pertaining to inelastic scattering of neu- trons. The method is based essentially on reducing the problem to the c;!Iculat: , I Df the Green's function of the crystal containing one non-magnetic impurity. IT is I shown thereby that measurement of the scattered neutron energy distribut-*Gn should t not be carried out for a perfect ferromagnetic crystal, but for a crystal containing 9. small concentration of nonmagnetic substitution atoms. In this case the cross section defined by the incoherent single-magnon scattering impurities can be expressed in terms of the density state in the magnon spectrum of a perfect crystal. Although 1 the concrete calculations are presented for a simple cubic lattice, they can be readi-, r--.J 1/2 ACC NRt Ap6037071 ---7 ly extended for all types of cubic lattices with a single magnetic atom in the i primitive cell. Orig. art. has: 27 formulas. I I SUB CODE: 20/ SUM DATE: 22Apr66/ - ORIG REF: 002/ OTH REF: 005 2 MCDVEMV, M.Ye., inzh.; SFMVCHUK, I.A., ingh.; CHMMOTA, V.H., inzh. Painting veneered surfaces permeated b7 resin glue. Der. prom. no-10:3 0 '59. (KM 12:12) 1.14oskovski7 mebellno-sborochny7 kombinat No.l. (Furniture painting) .W-01