SCIENTIFIC ABSTRACT TAMARCHENKO, V.I. - TAMARIN, M.D.

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CIA-RDP86-00513R001754810013-1
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December 31, 1967
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SCIENTIFIC ABSTRACT
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,"RIFONOV Ye.D.; TAMARCHENKO, V.I. 1 .9 Inverse problem in luminescence theor7. Vest. LGU 20 no.16: 21-25 165. (MIRA 18:9) J44V5-W , ZW1- 1drk0l dl) AM AN, AP6003611 SOURCE CODE: UR/0054/65/000/003/0021/0 c) AUTHOR: Trifonov, Ye. D.; Tamarchenko, V. I. ORG: Leningrad State University (Leningradskiy gosudarstyennyy uni~j vers itet-T '2 C TITLE:, Reverse problem in the theory of luminescence _SOURCE: Leningrad. Universitet. Vestnik. Seriya fizlkli khimLi, no. 3 1965, 21-25 TOPIC TAGS: luminescence, cadmium.sulfide,.electron transition, impu- rity center, crystal lattice vibration, distribution function ABSTRACT!- The reverse problem relates to restoring the distribution function of the displacements of normal coordinates of a crystal by us- ing experimental emission or absorption spectra (considered to have Mir ~ror symmetry). This distribution completely characterizes the interac- of an electron transition in an impurity center with vibrations of the lattice. The distribution function is represented as a series 'whose members are successive on Stfactions of the spectrum. An emission spectrum of an impurity in a4d_ rystal is considered. The calculatio was performed with a BESM-2 computer for several experimentally obtain- UDC: 535.370 Card 1/2 L-14205-66- ------ ACC NRt AP6003611 ed spectra taken at 4.20K. The results showed a strong interact on wit long-wave acoustic vibrations. In conclusion,the authors thank K. 1. Petrashent and Is V. Abarenkov,for a number of useful ouggestiona. Orig art. has-: f igure 22 formulas. ~M CODE: 20/ SUBM DATE: OSApr65/ ORIGREN 005t, OTH REFt 004 ~qrd-2L2 MAROON) V.S. New type of shears for the cuttirg of molten glass. Stek. I ker. 22 rio.8:32.-33 Ag '65. II.CRA 18:9) 1. Moskovskdy elektrolempovTj zavod. I SOV/96-58-5-3/27 AUTHORS: Polikovskiy, M.V. and Tamarchin, A.L. Engineers TITLE: Tests on a Sonic Regulating Stage by the Kaluga Turbine Works with Partial Steam Supply (Ispytaniya okolozvukovoy reguliruyushchey stupeni KTZ s partsial'nym podvodom para) PERIODICAL: Teploenergetika, 1958, Pr 5, pp 17 - 21 (USSR). ABSTRACT: Experimental work by the Kaluga Turbine Works in co-operation with the ?.131 (Moscow Power Institute) the BITM and other institutes has resulted in a marked increase in the efficiency of the works turbines. In particular, it was possible to raise the efficiency of sonic two-row regulating stages from 56.5% in 1954 to ?2.?7o in 195?. This has been accomplished mainly by using aero-dynamic blade shapes developed in the Moscow Power Institute. Work on sonic regulating stages for the high-pressure cylinder of 3 000 rpm turbines has proceeded in the works laboratory since 1953 on experimental staam turbine, type ET-300. During the tests, the initial pressure is teld to within 0.01 atm. and the temperature to within 2 - 4 0. The turbine is loaded by a two-disc hydraulic brake, illustrated in Figure 2. The brake load is regulated by adjusting the flow of water and covers the range 60 - 350 kW at 31p000 rpm. The method of Card 1/3 SOV/96-58-5-3/27 Tests on a Sonic Regulating Stage by the Kaluga Turbine Works with Partial Steam Supply applying load is described and the test procedure for deter- mining the no-load power and the efficiency is indicated. The tests established the numerical influence of the area-ratio on the efficiency of regulating stage, type KS-lA. At present, The Kaluga Turbine Works employs this stage in nine types of turbine with outputs of 2,500 - 12.,000 M Three stages were tested and the corresponding area-ratios are given in Table 1. The mean diameter of the stages was 800 mm and the main characteristics of the blading were as given in Table 2. The values of the various gaps are recorded in kigure 3 and the associated table. All the tests were made with supBr-heated steam, with initial conditions of 3.5 atm. and 200 C with son-ic pressure ratios on the stage. The test results are given in Figures 4 - 6, showing that- the most efficient of the three stages is Nr 2. Graphs of the loss with outlet velocity are given in Figure which shows that in stage 2, the least loss, of 2%, occurs with a velocity ratio of 0.22. The use of the i/s diagram to calculate the outlet velocity loss is demonstrated in Figure 8. Stages Vrs 2 and 3 were tested with various axial gaps; the Ca.rd2/3 SOV/96-58-5-3/27 Tests on a Sonic Regulating Stage by the Kaluga Turbine Works with Partial Steam Supply adjustments were generally made by displacing the rotor whilst leaving the nozzles and guide vanes in position. Efficiency curves for stage Nr 2 are given in kigure 10 and for stage Vr 3 inrigure 11. Stages 2A and 3A differ from 2 and 3 in that they have a smaller front axial gap; the corresponding curves from Figures 5 and 6 are shown in dotted lines. It will be seen that the influence of gap distribution is very considerable. It is concluded that the variants of stage, type KS-1A, are very efficient when tested with partial steam supply and short blades. The tests show that the blading is of high aero-dynamic quality over a wide range of flow conditions. Quite a small reduction in the forriard-axial-gap increases the stage efficienip by 2 - 2 1/2 There are 11 figures and 2 tables. ASSOCIATION: Kaluzhskiy turbinnyy zavod (Kaluga Turbine Works) Card 3/3 1. Turbines--Test methods 2. Turbine blades--Design 0 Lf 10 9, "~ 0-- 35582 S1056j6210421or,310431049 B152/B102 AUTHORSs Strakhovskiy G. M., Tamarqnkov V. 11. TITLEs Radiation of molecules under resonance conditions FERIODICALt Zhurnal eksperimentalinoy i teoreticheskoy fiziki, v- 42, no. 3, 1962, 907-908 TEXT: The radiation of a molecular beam in a coherent field is investigated. The molecules are in a mixed energy state with two levels. The beam on entering a cavity will continue radiating when the cavity is tuned to the transition frequency ho 12 ' El - E2 , although the number of molecules in the upper and lower level is the same. The function of the two-level system is V - a~l + bT2; :aj 2 + JbI 2 . I, a(+) depends on,,&,, I E and (.v-p is the dipole moment and E the resonance field strength 0 of the frequencyii d is the frequency of the molecular transition. 0 0 Such a state-can be obtained with an ammonia beam leaving the cavity of a normal clecular g*nerator; it is saturated, i. e. the populations of th Cardi, S/05 2y62/042/003/043/049 -Radiation of molecules under resonance ... B15 B 102 two levels are equal, is inactive and can emit only non-coherent oscillations,'spontarieously. Entering a second cavity the molecules will emit electromagnetic oscillations of the frequency of the first resonator and thistrequency is iompletely independent of the resonance frequency. of the second cavity. The apparatus consist4d of 3 test cavities the first of which worked ai an ordinary molecular generator and an NH 3 spectroscope. The radiation frequency in the second cavity was highly monochromatic and coirzoided with that of the first cavity to an accuracy 12 of io- . The radiation'power in the second and third cavity was measured in dependence on the tuning of the first and second, on the voitage Vof the' gradi4g system, and on the ammonia gas pressure in the source. When the radiation power in the second cavity vanishes the beam ..passing through the third cavity does hot radiate, but shows an intense absorption line. At certain V and p values the beam leaving the first cavity also absorbs energy even in the second cavity. In this case the population of the energy levels during the flight through the second cavity is a periodic function of time and of the number of active molecules in the beam. On detuning the first cavity by t4 Mc/seo Card 2/3 S/056j62/042/003/043/049 Radiation of molecules under resonance ... B152/B102 when the shf field in it vanishes, beats between the frequency of the Itmolecular sound" and the natural frequency of the second cavity are found in the latter. The beat frequency is 3-4 kc/sec. Further detuning of the first cavity causes cessation of the "molecular sound". There are 3 figures and 5 references: 1 Soviet and 4 non-Soviet. The four references to English-language publications read as follows: R. H. Dicke, Phys. Rev., 2j_, 99, 1954; Rev. Sci. Instr., Z-6, 915, 1955; W. H. Higat Rev. Sci. Instr., 1-8, 726, 1957; V1. H. Wells# J. Appl. Phys., 29, 714, 1958; N. Sher, IRE Nat. Conv. Rec., 4199, 78, 1960. SUBMITTEDs December 30, 1961 Card 3/3 SLOBMKIN, L.. inzhener; TARMIN, A., inzhener. _'. ". F,%Aw Ai.A*.,% _~, Drying grain in suspended state. Muk.olev.prom. 23 no.9:7-9 S '57. (KIRA 10:11) 1. Institut energettki AN SSSR. (Grain-Drying) TAMARIN A. ,. -,-- I - - - All-Union Conference on. the Ar-cducflon of Reinforced Cancrete Structral Eleraents. Prom. stroi. 42 no.1:3 of cover 165. (MrRA 18:3) s/i '19/6o/000/006/024/o52 E032/E4111 AUTHORS,: Remizova. A,A, and Tamiarin~ A,A, T'ITLE, Effect of Impurities on the Anomalous Thermal Expansion in the Neighbourhood of the Melting Potnt PERCODICAL~ Ezvestiya vysshikh uchebnykh zavedeniy, Fizika, 1960. No.6. PPI-152-156 r f-i x,,r Using Frenkel's theory (Ref.,J) of phase fluc~.uations, Bartenev (Re.1'..2.3) has obtained an expression for the correction which has to be added to the volume expansion coefficient in order to atcount for phase fluctuations.. This correction is given by 2 V2 - V1. k To an v, y-g (T0 - T)2 Card I./IjL S/139/6o/000/006/024/032 E032/9414 Effect of Impuritiei on the Anomalous Therina] R-Cpansion in the Neighbourhood of the Melting Point whert r,, is the transition temperature, y is the latenL hr-at of moltln'44., vI and v2 are the speLific volumes of the ~;olid and liquid phases and a is a constant representing the minimuni statisticat complex of particles capable of experiencing a phase transition, The phys).cal basis of this phenomenon is that the second derivatives of the thermodynamic potential gradually tend to infinity as one approaches the melting point. and the proc;ess begins a few degrees, and sometimes even rens of degree,,tL., before the inelting point is reached This in turn is dude- to the fact that melt.ing takes place not at a def'Lnite temperature but in a certain temperature i.nterval, Owing to Mt. gradual increase in the amounit of liquid phase just befcr-4rt c~ht- melting point is reached, both the specific heat and the thernial expansion coefficient exhibit an anomalous behaviour in this region and must include additional terms of the abc*,re type (Fq'11 rf, moreover, the system includes small amounts of SoLuble impurities which are uniformly distributed through the Card 2/11 S/J3q/6n/ooo/oo6/o2V032 E032/E414 of fmpuritics nit the Anomalou3 Thermit) Expansion in the Neighbourhood of the Melting Ps-Pink vol ume then impurities may introduce a further selall *~! f 1, 4D C tWhen the E%re distributed uniformly on the rwicros,~,opi.v scale while oil the micro-4copie mocale there J% a statistical nonuniformity, the anomalous part of the thermal expansion coefficient can be calculated from the following expre~t!~5irrn obtained by Bartenev Ln Ref 3 -a X~I V V I: e a 'Wr (2) T0 - Ta hc r o~- To and Ta are Lhe melting points of micro-~olumes free of impurtties and containxag a i.mpurity nolecules re...spectively. X is the numberr of jMPUI-Ity atoWS- In the nikcrovolume, and a is the mean number of -topurity atomei in Car d' 3 / 1. 1 S/119/60/000/006/024/032 E032/EI#14 Effect of Impurities on the Anomalous Thermal Expansion in the Nei.ghbourhood of tile Melting PoLnt from this formula In ic J. 0%. 0 1 "me In order to calculate a a it "311e, 1111ist. have a knowledge of the microvolume which was called by Bartenev "a quantum of melting", The latter consists of i.07) 'to 104 dcoms'.. Another theory which is better known at the present time is that put forward by Dickinson and Osborne !Pef 4) but the present. authors con!5ider that it is physically untt-nabke- 'rhis theorv was critically examined by the first. at' ),~be present authors in Ref.,5.. ft is well-known that, the f-eature of binary 6ystems jLs the fact that liquidus and solidus lizies on the equilibrium diagram are not the Sti Hie "In the present case thi..s means that there are different ~,oni,,entra t ions of the intpur.Lty in solid and liquid pliases which are in c7quilibrium duy-,ng the crystallization prccess The v t * L o of Ehe impurity concentrations in the solid and liquid phase_c, ls: defined as the distribution coefficient k which can be either gieatt~r or tmaller than unity, In the dexcrmination of the disiv-ibut,~on. of the impurity in a crystalltzed specimen, one may Card 4/ -'s/i39/6o/000/000024/0132 E032/E414 Thermal Expansion in the Effect of Xmpurities on the Anomalous Neighbourhood of the Melting Point -diffusion rate-in introduce the simplifying assumption that the the solid phase is negligible, while in the liquid phase it is. very large, so that the impurities are distributed uniformly. It may then be assumed that when the crystallization rate is t f1ciently small,-a thin layer of the crystal in-contact wi h suf e the separation boundary is in fact in equilibrium with the whol liquid and the impurity concentration ratio in them is equal to k. On these assumptions it has been shown that the f the'solid layer crystallizing at a given concentration c' o moment is given by (Gulliver, Scheuer, Hayes, Chipman and McFee Ref.6 to 9) C/ COK nz (4. M Card 's/jL39/6o/ooo/oo6/024/032 E032/94i4 Effect of Impurities on the Anomlous.Thermal Expansion in'the -X461ting Point Nel ourhood of the. where co Is the average impurity concentration, a in the amount of crystallized liqui&and M in the mass of the 77 specimen. When k