SCIENTIFIC ABSTRACT BOYCHINOV, A. - BOYCHUN, V. Y.

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December 31, 1967
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Bulgaria /themical Technology. Chemical Products 1-31 and Their Application Fermentation Industry Abs Jour: Referat Zhur - KhImlya, No 9, 1957, 32921 9. elljRsoldous, with minimum aerations since K the presence of oxygen the yeast consumes more sugar for proliferation. Card 2/42 7 ~910 I-IS ~,BUIRMIA/Chemical Technology - Chemical Products and Their Application. Feramtation Industry. Abs Jour Ref Zhur - Khi=iY&, No 1., 19580 2882 Author Inst Title Correct Operation of a Kieselguhr P11ter Orig Pub Lozarstvo i vinarstvo., 1957, 6, xo 1, 43-50 1-12 Abstract Description of the technique of operation of a kieseiguhr filter desigmed for a single use (with asbestos) or for repeated utilization (with a nylon screen). The possibi- lity is pointed out of charging the filter either vith vine mixed with kiese1guhr (1) or with vater and I (wash- ing with vater for 10-15 minutes before charging is in- dispensable). Depending on the turbidity of the wine, from 0.5 to 2 kg of I per 1000 liters of vine are required (on using the singlq!7run system). Piltration is conducted at 0-5 atmosphere Ssuge pressure, after vhich the filter Card 1/2 BULGARIA/Chemical Technology - Chemical Products and Their Application. Fermentation Industry. Abs Jour Ref Zhur - Xhimiya, No 1, 1958, 2882 1-12 must be recharged. To vash the filter designed for repea- ted utilization a countercurrent flow of water is used, after which the filter is recharged with water containing 1. There is also a filter for double filtration: first throu& 1. then through asbestos, which is particularly suitable for new, turbid vine that requires good stabili- zation. A 2-section filter is described, one portion of which operates as a filter while the other is being rechax6 ged; this permits a continuous filtration of vine. BULMRLI/CliciA cal Technol.)gy - Chemical Products and Their Application - Fermentation Industryi Abs Jour : Ref Zhur - Khimiyaj N,.) 91 1953t 30462 Author : Boychirov, It. Inst Title : The Processing of Wine Sluago. Orig Pub : Lozarstvo i Vinarstvo, ~, No 4, 41-45, 1957. Abstract : Ii, methoOl is described for the drying of less, iihich has been first pressed out, in a tray-type dryer (with steam tubes) having a capacity of 1 t3n of pressed lees per day. The steam and alcoholic vapors are cooled and con- densed. The dry sludge contains ca. 1/3 dry IT-N: sPenf yeast, ca. 1/3 orGanic substances., and 20-4Wcrean of tartar. The concentration of the latter can be increa- sed to 50-60% by fl3tation. The cream of tartar is next converted to calcium tartrato vhich is used in the produc- tion of tartaric acid. The direct processinL; of the slud- go in autoclaves is wieconomical. Card 1/1 BULGMqChenical Technology Chemical Products and Their Application. Fermentation Industrf. Abe Jour : wf zhur - Khimiya.. No 8,, 1958.. 26773 H-W Author : Boychinov Atanas Inst : - Title Stabilization of Now Wine with Artificial Cold Prior to Bottling. Orig Pub i Lozarstvo i vinarstvoj, 1957.9 6: No 5., 4043 Abstract Description of stabilization of new wine by treatment with coldj, for 5-15 days., at a temperature close to the freezing point of wine. A flow-sheet diagram is shown. Card 1/1 6B - BULGARIA / Cultivated Plants. Medicinal. Essential M-7 Oils. Toxins. Abs Jour: Ref Zhur-Bioi., No 6, 1958, 25226 Author : Akhatarov, B.,,~-~ ~nov Mazhdrakov, F. Inst : Not given Title : Experiments on the Influence of Artificial Fertil izers on the Alkaloid Content in Plants Orig Pub: Farmatsiya (B11g), 1957, 7, No 1, 37-39 (Bulg.; res. RUBS.) Abstract: Investigations were made of the effect of fertil- izers on the alkaloid content in the plants Atrope belladonna L., Datura stramonium L., and Hyoscya- mus niger L. Nitrogen fertilizer Increased the alkaloid content in belladonna and the thorn apple by up to 25%; nitrogen and phosphorus fertilizers increased the alkaloid content in the henbane by Card 1/2 140 BULGARIA / CultivAtea Plants. Medicinal. Essential M-7 Oils. Toxins~ Abs Jour: Ref Zhur-Biol., No 6. 19588 25226 Abstract: up to 20%. Potash fertilizer had an adverse effect on the alkaloid content of all three plant species. -- L. N. Korolev Card 2/2 BULGARIA / Chemical technology, Chemical Products H and Their Application, Part 31 - Fermen- tation Industry. Abs Jour: Ref Zhur-Khimiya No 18, 1956, 62577. Author : At. Boyck;Ao" Inst :YoT -g- IV e-n . Title : Improvement of Quality of Fruit aftd Grape Vodkas. Orig Pub: Lozarstvo i vinarstvo, 1958, 7, No 1, 34 - 37. Abstract: No abstract. Card 1/1 ,v 0 V 4 W!ir,:-RLP--/Culti-v,-.ted Flants. Modicinal Plants. Essential Oil Plants.M Thxie Plants. "Is Jour : Ref 2hur - Biol., No 81 1958., No 3".2 Author : Boyetinov A. Inst Mtla Phr=rxognostic Monoz;rn~-fhy on Hoots of Ch. Bonuo. (Chanopodiuu Boaus Henricus). Ori- Pub FlarLkItsiYan (BI 13.), 1957, 7, No 2, 16-19 Abstract k-,scribed is the exterior norpholoMr and tZe anatom, ical forn- ation of roots of the species Mi bonus which is widespread in Bulgaria. Me hwolytic acitivity of the rooto is --s- cartained at approx. 1:1600. The snponin (chenopodin) Was extracted from the plant -md its ca3position and molecular weight est-%blishea. Me formula, of this substance was found to be C21H40012- -- IdlxliyGva- Card 1/1 BIJIMRIA Chemical Technolo6y, Chemical Products and Their B-27 Application. Fermentation Industry. Abu Jour Ref Zhur - Xhimlya.. No 5, 1959, No. 17264 Author Roychinov, A. inat Title Complete Utilization of All Sorts of Raw Mterials in the ~saufacture of Tartaric Acid and Tartaraten I OrIg Nb Lotatetva, I vinmtvo, 1958, 7, No 4, 50-53 Abstract Ways of increasing the yield of Ca-tartarate (1) from the solids remaining after the filtration step, and particulArly the mathodL that employs a tvo-stage botling we--& reviewed* It Is zweessary to colleet the wine sediment, to dry it, and to utilize it for the derivation of tartarates. This sediment ocWisea 2% (on the average) of the volume of wines., and relresents an additional availability at 100 tons of tartearic acid per year ftir the Card 1/2 14 BUIGPIM Chemical Technology, Chemical Products and Their E-27 Application. 7mmentation Irdustry. Abe Jovv Ref Zhur - MAmlya, No 5., 1959, No. 17264 We With the Improvements of tho Irocess., it is possible to obtain 2 - 3 kg of dry I from 1000 1 of unfiltered wine. An iWortant source of raw materials for the nanufaotare of tartaric acid are the grape hormy and nemm =to 100 kg of the latter yield 2 - 3 Xg of bitartarates. It Is also suggested that the recovery of tartaretes from the deposits formed on the barrel walls wd on the, sterage vat walls Is realistic and that It should be Iractleade -- Go Valuyko Card 2/2 Ofts. FarzAtaira. Vol 13, Sa 2, V^rea-AprLl 1962 *-.US FOUMJ&iIOM Of thS Firat Y,*~Lcaj Care Society in bagarts,'In 105A., 'A. Bo---VA, and Z~. 30zv 6f --U (Professor 1. Mweatri-da-d ot: daparl= 24-:1 (Higner YO-1041 AIN X".. 30114, pp 3.0. 2. *MrpbInIss." D. ~!X_Xov; PP a-9- 3. 'The Appucallon Of Radlov.01.179 Isotopes -,r ?,%3rm4cW V. FEW-.Vk a. rVCUROV end v -X,--v Of r-La IM-0 - 1~0 1-z .-i (?.,3rD3sjr M, eaadi at apow"Int), M'L (not id.nzirisd). PP - . 4. eCOm4*rUIrA5 %be QU"%-lt&;lV# S;"0lfl0&;1OU Of Cortisone and Dealdrozorti some,' A. VULKOVA And A- PP 16-19. S. -740 C0*2LAtrY &:21 Analytical Fropirtles of &Stan* " Jr._JJM= of Lne Msz~.sey SlIentlila lanssivale-, pp 4-26. P?ho potontionetrLeal ineoLficaLion of ;no Pjdrazcaes oC %a* Hydrasids of laonloosIr-a Acid w~lft ~adjux Nitrate.' a. XXVJ0 (so@ preo*41=9 article); pp 27-32. 7. *?be Presuction of YANXOV of %k! PI&MT., Sofia; pp *Canceral-ma the Develo;V.Sn%. =truction, Chaidoal COMOsMom. of tad Roots of PA&?omzicuz Carthazoides on Grown In Bu2garts&0 Y.X, Yar4mlor and D.B. Asnoves VP 36-39. C tvo v ra\ o ! 1, AM u M 4 o > 4' 5 k:.~ 9,12 91 41 q -1 I'D _7-_; % erfrofly Otis e MIAMI- '10. V1. some EZV2 W, amr2r=_-_~ glmr e -=F K1 final. Inst.. Ernininrad). I A3,835-41(19M);.c 4tole In 10 mi. 1:3 H~SO4 was added ' ' g. chromic acid In 10 mt. H.SO# (1: 4 and the mixt. c IM after 15 min., Yielding 5-bextimidd i k t f id k hi i O f b h h n =r sit o eac w Na ree c t Ac gave the la , w 0- 25* (frori;MO) 08 This (1 62 ) and 1 - . . Z. S. I o-COUNRO, n 10 ml. 20% MCI heated in sealed tube 4 hm ' ~ at 180-2DO . then neutrallred with NH,OH and filtered, gave r b i U W b xd id k d di HO I M t th - - ext m as e m aw a e as e , ) y 'MI (from coned MCI);'the free base could not be . pudfied owing to the forraition of gels. Similar oxidation d 2.5-dimethylberizimidawle gave 70--S% ~2-# I-r- c -bensi id rb id 301-2* (t x 1 li MMO) .."Oftmical Abs i m a o c o rom c ac . q oxy VOL 48 NO a This with a-Colli(N11j)a in 20% MCI as above gave titter 40 , at ISD-200* min . - -- ' . - which with ' 33%40': sak-211CI 4H OR o m MCI) (f k, A p 1:25* 1 54 , , . r m , , , ' ' * ihi ith dil h f b 3 R QH 0 f ~-':OrgarAV Ch mist ry t I: -, sw e gave t ree to. 40 rom t ase ( ., ). ), ( it di-AX,si;n; the NU40H-AgNO3 In WOR cave a flocculet - .: fi-ee base yield di 282-2.6'. 3,44HPN):C4Hr- a Me(IMX.).nd NOVAM.100.20%11CI heated Ina sealed tube ~ h7. at in J,5'-dimdAy1-S42-bm- . Sim Sun za, I h and unsharp, which Yeadi-H salt above I (From 25% MCI); the m - , Y, do. a in. 274*. This oxidized with chromic A us ~ a gave 2~fflelAYI-S-(Y-car l 2; V bratim ~yi ',n 't abou 290 (111). m. heating with (from 150% HCI); decarboxylated ~1 1 hat at ga (picrate. m. 274 HE with i- ve 75,Yp 2- 80-200 C4714 A and 15% 14 firs. at I I f Si il l W l dil 1110 b MCI) m ur aso e, rom . ove , , m. a c6nder sati Nf ave 85-90 With 3 4 Nh H (H - i ou , , t e g imidwWRC1, m. about 400' (from dit .~Ilcl)- 2,Phenyl. 9 le &methylbenzitnidazole with.ch ic acid in aq. H-SOA W a. 2-phenyl-5-bentimidaxokcarboxylic acid, isolated it% the saU, m. 304~5' ~from~aq. MCI). Mectrometsic titration of this gives 2 pH reaks; atfl.4 and a weak one %rhose pos.- . ated with o-C.H.M1,~ in tion Is twstatetl. This lie, IICI in %caled tube 6 hrs, at IF-G-2M* rVe 2-Phenyl-5-(.~- m. 303-JO (from dil. MOB); IICI Jail, M:32.1-6* (from di). 110). SimiIar)y,1,44)1%N)t-. frorn dit. MOM; HO salt, V-I~ do.. TICI). This irnq oxhlited ai abovIt t. lated as the Ita salt. m. 314-19. . which. heated with o- r4H4(NH*), and 10% HCI, gave Jw! Isdated As tilt 0=11, does not tn. MO* (front Rq. 110). 14-(HN~,* Me gave )) beasimilawk. isolated as the di-HO uft. does no M 390*; the fme fw is in-A. in mg. stlivents; except AcOH In which It forms the corresponding salt. Heating 4IrhINF-*H&CQJUICI -with o-C4114(Nifth &w 1e;2 :1 to a waled tube 40 min, at IFfi-3W* ur. this t. .1th IINO, ithout foroling a 14N . t h I A OR it 1 - wa 1 n c res a peet pp g recu- WA"Ne"hMe. Coadensatim with HODJI a Ott the gew desmiled bis-Iltnthnidasok derivs. NA. Deoltkukimmies bave characteristic D "-qw- 2700-ODO, dilleulmkiazoles at 31004W, %todwIduales --' 34OD-M A.. even the later sh- wxb bI* wedbr In tW=Iei VM' fto= Zs - =L=Jrbwy b&Wng AN&$& L.S.-Wks. IW.8"; cf. CA.48,2M.-' AwithOwl. USSM and V" Bw save 19 g. Cryst. =Vak C004HPSCh I bwed to X", hk - wpe test tube MW VOINt tbtti to MG-801 until a teA with lk . ti bensimithuxlk an adda. of NIIb --A A - m. W64, f. M.0 a.) by-beating 132 jr. 3.+MNN,. (U wM I al. HCOA and 5 ml. H.0 40usinAn a tMbe at ISO-W. With 939% StjorW fisked as abne at 20-W, OCW. :&IMF 'by) -Itwn ACOV-1, 0. bL XMAS BOYCHINOVA, Ye.S.; ALESKOVSKIY, V.B. Quantitative determination of traceelements from the height of peaks on paper chromatograms. Report No.l: Determination of copper and nickel ions. Trudy LTI no.48:94-100 '58. (MIRA 15-4) (Copper--Analysis) (Nickel--Analysis) (Papor chromatography) - -- ------ - - - ---- -- I--- BOYCHINOVA, Ye.S.; ALESKOVSKIYj V.B. -- -19chanism of the ormation of precipitation chromatograms on ion exchange resins. Trudy LTI no.48:133-142 '_& (MIRA 15-4) (Ion exchange resins) (Precipitation (Chemistry)) EFROS, S.M.; BOYCHINOVA, Ye.S.; CHUPRIK, V.F. Vanadatometric determination of barium ions. Trudy LTI no.48. 165-168 #58. (MIRA 15:4) (Barium--Analysis) EFROS, S.M.; BOYCHINOVA, Ye.S.; HZNETSOVA, A.R. Determination of zinc and nickel ions in an electrolytic bath of nickel black. Trudy LTI no.48:169-174 '58. (MIRA 15:4) (Zinc--Analysis) (Nickel--Analysis) EFRDS, S.M.; BOYCHINOVA, Ye.S.; GORFUNKELI, Yu.M. Complexometric determination of copper and zinc ions present together. Trudy LTI no.48:175-178 158. (MIRA 15:4) (Copper--Analysis) (Zinc--Analysis) (Complexons) BOYCHINOTA T S lFROS, S.M., MO(BA)MIY, V.D. Tolumetric determination of evall quantitlem of ozygen. TrudY LT1 no.58:31-35 1590' (KIM 13:7) 1. L"ningradekly tekhaologicheakly inatitut In* Lensaveta. (Ozygen-Analyals) ALESKOVSKIY, V.B., prof.; BARDIN, V.V.;-= IN , _P4 QYA, Xe.S.;, BUIATOV, M.I.; VASILIYEV, V.P.,- DOBYCHIN, SA.; DUSHINA, A.P.; KALINKIN, I.P.j KEDRINSKIY, I.A.; LIBIDIA, R.I.; PRIK, K.Ye.; SETKINA, O.N.; KHEYFETS, Z.I.; YATSIKIRSKIY K.B., prof.; VASUVICHj D.N., red. [Pbysicochemical methods of analysis ; a laboratory manual] Fiziko-khimicheakie metody analiza; prakticheskoe rukovod- stvo. Moskva# Khimiia, 1964. 451 p. (MDA 17:12) L 52301-65 -4 JP(C) RW'H/jD/,VV'W1/JG/FLk1 ACCESSION NR: AP5008816 UR/0080/65/038/003/0674/0676 AUTHOR: Boychinova, Ye. S.; 1(haritonova, E. V. .TITLE: Inorganic 1. . .. hanger ased on polyphosphates S$ ',SOURCE: Zhurnal prikladnoy kbimii, V. 38, no. 3, 1965, 674-676 .~TOPIC TAGS: ion exchanger, inorganic-ion exchanger, polyphosphate, zirconium, ti n ABSTRACT: Zirconium and tin were precipitated on sodium polyphosphate to produce inorgaiiic ion exchangers. The base sodium polypbosphate was prepared by fusion of sodium dihydrophosphate (NaH2PO4-2H2O). In the case of zirconium-loaded poly- phosphate a solution of 1.86 grams of Z-rO(NO3)2 in 14 ml of IN nitric acid was added with vigorous stirring to a cold solution of 5.6 grams of sodium polyphos- phate in SO ml. of water. The precipitate was washed to a pH of 3 to 4, filtered, and dried at 80 to 1000C. In the case of tin-loaded sodium polyphosphate the base was prepared by fusion at 9000C. A solution of 3.4 grams of SnC12 in 14 ml of _V; hydrochloric acid was added with vigorous stirring to a solution oil 2.9 grams of sodium polyphosphate in 50 ml of water. The 3-4 hour precipitate was separated 1/2 L 52301-65 '::ACCESSION HR: AP5008816 band it contained 13.3 per cent Of P205. The 12 hour, precipitate contained 37.3 Zr4+ ion-loaded sodium polyphosVhate readily absorbs such Per Cent Of P205. The 3+ 2+ 2+ 2+ cations as Fe , Cu , Ba , Sr . Ni2+, Sn2' , and Sb' . A treatment with 2N hydrochloric acid leads -to displacement of these cations with hydrogen The S-1-12T ion-loaded sri,,dium polypbosvhate exhibits reducing properties; it reduces 12, arid Fe3+ and Ag + ;ons. The Zn4 and Sn2+ ion-loaded polyphosphates are polyfunc- t1onal exchangers sirice they exhibit an ion exchange capacity in both acidic and hiasic media. The tin-loaded sodium polyphosphate has poor chemical sta',~_,'Iity. Orig. art. has: 2 figures and 2 tables. ASSOCIATION: none SUBMITTED: 03Jul65 NO REF SOV: 003 Card 2/2 ENCL: 00 SUB CODE: GC OTHER: 006 ACC NRt A!-'6027469 SOUNE. CODE': Ult/00/i/t/66/000/005/l,'100/BIOI AUTHOR: Iloyarchuir., A. K. TITLE; The differchce schemes for a fourth order differential equation with, discontinuous coefficients Ref. zh. Hatematil Ab A SOURCE: a. 5B531 REF SOURCE: Vychisl. matematika. Mezhved nauchn. ob., vyp. 1, 1965, 197-115 TOPIC TAGS. difference method, differential equation, boundary value problem, numeric solution, finite difference ABSTRACT: A numerical method for the solution of the differential equation U + d.11 ZFx dx) with boundary conditions U(0)-U'(0)-U(1)-U'(1)-.0. (2) by means of difference schemes on nonuniform lattices has been 8escribed. After numerous transformations the problem goes over into a finite difference bouadary problem corresponding to (1) and (2) of the form Card 1Z2 UDC: 518:517.91/.94 ACC NR-- AR6027469 Vk.P-O yj 01 (1- 1.2,..., N- 1). (3) -0. (4) 2h, 21t1V -0, 1,,V-O (Nu-number of steps on the lattice over the segment (0, 1]. The system of difference equations (3) and (4) can be written in the form of an operator equation and one can introduce into the investigation an N-1-dimensional vector space. The author proves three theorems: 1. The operator Lhi is self-adjoint in the Lagrange sense. 2. The operator Lh, is positive definite. 3. For the operator L hi there exists an inverse operator L~~ which is uniformly bounded with respect to hi and defined over the set of vectors of the 4D type. The latter theorem establishes the hi existence of Green's difference function for the operator Lh The formula for the error estimate is also derived. It is noted that the homogeneous difference schemes L(k.p,qf) secures a high accuracy during the numerical solution of the problem (1), hi (2). (Translation of abstract) Bibliography of 5 titles. 1. Shelilchova Sun 112 ;kUTHOR: Kriksunov't VeG. (Active member of society); Boychuk,,B.A, (Activt member of society) ORG:. ~none TITLE: A frequency retuning.tunnel diode relaxation oscillator SOURCRz,., Radiatekhaikao .Y.* .22 no. 1 .1967 41-46 TOPIC TAGS: relazatloh'oscillator, tiinnel diode a twmal diode vith-~broad-frequency. ri7t~mi4 ABSTRACT:,,A relaxation oscillator Using* -is described. The'sine waves obtained after'filtering relaxation oscill&- tions generated-by the'oscillator.vare Investigated. The*circuit of the relaxation oscillator is shown'in Fig. 1. Toits of the device over a. Cwd IL2 UM 6a1;'3?3*53'- ACC NRs -AP7005~ 5 -7 A -6g. 43. 19 rig. Relaxation oscillator circuit -broad frequency'range (from 5 cps to ~O me) demonstrate good agreement *between calculated and the experimental data. Variations of the control voltage within 120-180 mr caused a relative frequency deviation of 0.3. The output voltages were varied vithin 42-73 my and 6.1-6.5 my for output 1 and output 2,Lrestectively. The harumic coefficient of the out 'put voltage van 3%.vith a If filter consisting of a X section and two M half_8eQtjon2L(M a O.Q. With the use of a germanium tunnel, frequency 'deviation is-approximately W when temperature varies within t100. Qrig. art * has: 10 formulas,_ a~n4_ 7: t figures. [Gal SUB .dODEs 091 'SUBM,DATEs .24Apr64/ PRIG RErs 004/ ATb PRESS: 5116 .Cwa i/2 BOTCHUK. B.N Mooed ffte bons PUstIc mwpry In oxperlsout, Ortap,,trava.1 protes. 20 no,'i2s27-32 D 159, (KM 13 as I. I.J6fe4Y opsratlvW thIrMit I topogmf laimalmy, anstoidl (Sav. - Wof. T.K. Mommitow) Zabsuskw md1tolaskeso lustltuta. (B= AXD BOOS transpUntation) BOBRMNIK, D.P.; BOYCHUK. G.V. Mineralogy or Turonian chalk in Kromensts. Min. abor. no*17$113-n9 163. (MIRA 17%3-1) lo Gasudariltwennyy univorsitst issni Frank*j. LIvov. BOYC.VfUKP G. V. Mineralogy of Senomanian sediments in the surroundings of Izyaslav. Min.sbor. 18 no.1:91-93 164. (MIRA 18:5) 1. Gosudarstvennyy universitet imeni Ivana Frankof Llvov. BOMHUM 1.*.N* insb*l SOBM'q D.lep Insho Resources of staime crushing p3ants, Strol, mat. 9 no.10s:12-U 0 163* (KMI 16ill) S/102/62/000/001/OOG/007 11201/D302 AUTHOR: Vt- (Kiyev) TITLE: Determining the optimum supply voltage for controlled a.c. choke coil drives P19-1101) I CAL; Avtomntyka, 110q 19 1962, 66-73 TIM: The author analyzes the most general case of a.c. supply voltage required for saturated chokes when the maximum required motor voltage is nearly equal or equal to its nominal voltage (U nom ). If Um is the supply voltage and U. is the required motor voltage then Um -:?~- 1 and the opti- Im mum value of this ratio is determined from U. the point of minimum weig.ht and value of the im saturated choke materials., IFor the condition UMP:ZIU im the saturated choke voltage at maximum magnetization U and the core induction Bc should be near zero. For this condition the control amperewturns aw(i should be Card.1/2.,_ S/102/62/000/001/006/007 Determining the optimum D201/D302 very large, resulting in high copper losses. It is shourn that increasing the supply voltage leads to (it-creasing aw(i) It is shown that the a.c. ampere-turns aw(i) -1can. at the same time be made to remain constant and induction BC to increase. This leads to a decrease of the control ampere-turns aw - , resulting in a decrease of weight and cost of the t/ controli windingNf the saturated choke. The weight of iron of choke cores increases with increasing UM, the copper weight of a.c. windings changes little, so that the minimum cost and total weight of the material may be determined from an optimum value of voltage supply. The design examples show that this minimuni value of the supply voltage is of the order of 10 to 15% above the maximum motor rating, resulting in 15 to 209,60 savin- in the cost of chokes, and in an increase of the saturated choke power gain. There are 2 tables, 5 figures and 4 Soviet-bloc references. SUDMITTED: September 10, 1961 -Card 2/2 BOYCHUK. Leonid Mikhaylovicb;.TITOVA, N.M., red.; TURBANOVA, A., takhn. red. (Contactless control systems of small automated electric drives] Beskontaktnye sisteny avtomatisirovannogo elektro- privoda maloi moshchnosti. Kiev, Izd-vo AN USSR, 1963. 50 p. (MIRA 16:10) (Electric driving) BCTGHUK, L.M. [Boichuk, L.M.] (Kiyev) Determination of the optimum transmission number of reductors for high-speed servosystems. Avtomatyka 9 no.l: 79-79 164. (MIRA 17:3) BOrCHUN9 L" ("V) Analysis of optimm systeLms of automatic stabilization. Avtomatyka 8 no.6s47-57 163. (MIRA 17s8) VEP.I,,:,T'GW,GJPY inzh.; BOYCHUK, L.M., inzh. Gontactless devices for dynamic braking of asynchronous electric motors. Energ. i elektrotekb. prom. no.3:38-40 JI-S 165. (MMA is.. 9) L 55215-65 (k)/PYP(b)/Lr4A( c) Pf-b: 11D1/i_DM A'CCESSIOP IM: U501526" UR/Q286/65/OW/009/OCV.6/oU6 AUTWRS: BoyebUk, L. M.1 Podola, N. V. TITLE: De-ice for autonatic stabilization of arc voltage. Class 21, No. 170594 SOURUE; ByaUetenl izobratenV--i Uv&Wkh mmkov, no. 9,, 1965, 46 zqr',~ Ar' Ming TOPIC TAW: -voltage Btabili O~we ABSTRACT: This Author ftr4ficate presents a device for automatic stabilization w4 of are voltage &on weldingWith i 'Noible electrodes. To increase the accrLracy; responBe rate, and reliability of the arc voltnga stabilization, the dovice huav a t~o-phase sic motor, reversible using diodes. The diodos are connect-ed Ln the control circuit through rectifier bridges and wtehing transfor-,mrs. The transformers are controlled by two nonsymetric triggers with emitter coupling and by a high sensitivity semiconductor de amplifier. The difference between a ref erence voltage and the m-o voltage in f ed to the ampl If 'er inp?_ ASSOCIATIM nonD SUMUTTED i (Y7Aug62 n"CL 1 00 SUB GOIZ I EG, M NO REF SOV: 000 DTMs ODD A4 SMDRODINTSRV~ A.A.; B-DYCHUK, L.M.; SHIMA, Ye,S. loolatton and study of measles virus strains* Trudy Ion.insto opid.1, mikrobiol. 176-12 158. (MMA l6t2) lo Virusologicheokqa laboratoriya Leningradskogo inotituts, opl- demiclogli,, mlicrobiologii i gigiyany imeni Phstera. I (P=LW--WCROBIOWGY) (TIMR CULTURC) BOYCHUN, LA. Reproduction of the influenza virus in the upper respiratory tracts of white micas Trudy lensinsteepid.i mikrobiol. 17a 93-10Z-958. (MIRA 1612) 16 Iz *ImsolOgicheakoy laboratorii (zave - chlen-korrespondent AM SSIR prof6 AeA. Smorodintsev) leningradskogo instituta-epi- demiologiip m1krobiologii i gigiyany imeni Pastera. (IMIMU W&&.MGROBIOIDGI) -r-gm"J~ ftudy of the smaiti so of a senm against influmm SW prop;!!" pid.i mikrobiol. 17t in an emperlment on ilen.inst.0 103-U7 (KMA 1632) 1. Is virwologichaskoy laboratorii (sav* - chlen-korTespondent AM SSSR prof* A.A& Smorodintser) laningradekogo instituta epi- deniologiip mikrobiologii i gigiymy imeni Pasterao (W=10 (SM THMM) BOYCMJK, L.M. Pbosibility of samitizW hman beings vith an anti-influenza serum tbrau&-ita introduction into the upper respiratory tract. Trudy Len.lmst.epid.i mikrobiol. l7s118-126 1%0 (MIRA 1612) 1. Is virusologicheekoy laboratorii (save- cbleZ-kOrreMPOndQDt AM SSSR prof. A.A. &moroclintsev) lanizigradakogo instituta epi- deniologiip mikrobiologii i gigiyeny imani PUterae (INFURNZA) (SIM THMN) SNMDIWTSUP A.A.; SHTKINAv Ye.3..-, H3SHAWVA, V.N.; WGMRAv R.N.; BYSTRWOVA, L.V.; PETROVA, M.N. Reactogmic amd i=nmgsnic properteis 6f ltvs time wasles vaccim. Trwity Lon.inst.epid.i mikrabiol. 19*3-M 1!99. (KMA 16 &2) 1. Iz virueologicheskay laboratorii (rukovoditall- - cblm- korrespondent ANN SSSR prof. A.A. Snorodintser) Leningradakogo instituta opidmiologiip mikrobiologii i gigiyany Imeni Pkatem, . (KLqSIZS.-PMETM INOCUIATION) (VACCINW) SHIMAv U.S.; WYCWZ, L.M.; MESHAIDVA, V.N. Mological, properties of the measles vJjws during its prolonged culttmtion in tissue cultures. Trudy4mmel*tospid.i mikrobiol. l9a21-33 11-59. (KMA 16:2) 1. Iz virusologicheskoy laboratorii, LeningradBkogo instituta epi- demiologiij, mikrobiologii. i gigiyeny imeni Pastera (rukovoditell - oblen-korrespondent AM SSSR prof. A*A. Smorodintsev)o (KWLES) (TISSUE CULTURE) BOYCRUIP L.M. Pftpbylactle and therapeutic action of anti-influenza 9 In an ezpariment on white mice. Trudy Len.insteepid.i mikrobiol. 190447 0590- (MIU 16t2) 1e is viruedlogicheskoy laboratorli (rukovoditell - oblen- korrespondent, AWSSR pof, A,,A* Smorodintsev) Leningradskogo Smatituta, spidedologlip mikrobiologii i giglyany imeni ftetems (INFLU=Um4WMTM INOCUUTION) (B=M THWM) BDYCHaK, L.M.; SHIKINA.. X96SO Resistance of Ussue -cultures of the measles virus to storage under refrigeration and to 1yophilic drying. Trudy lan.inate epid,i mikrobiol& 1994"3 t59. (KMA 16 s2) 1. Is virusologiahookoy laboratorii, (rukovoditall - chlon-korrem- pondent ANN SSSR prof* A.A. Snorodintsev) Inningradekogo institute, epidemiologiis, mikrobiologii i,gigiyeny imeni Paotera. (HUSLES-441CROBIOWGY) (MOPHILIZATION) SHIMA, Ye.S.; ItOYCHU1 RNOSOVAP L.M. Reactogenic and 4-imogemic al-wracteristics of mmalteneous vaccination conducted with a live antiparotitis vaccine and a killed polimWelitis vaccine. Trudy Len.inst.epid. i. milkrobiol. 190-15-123 ~-99. (MIU 16s2) 1. Iz virusologicheekoy laboratorii (rukovoditell - oblen-korres- pondent AMN SSSR prof. A.A. Smorodintsev) Leningradskogo instituta epidemiologii, mikrobiologii i gi imeni Pastera. (MUMPS-PREM7M INOCUILAATI (POLIMURLITIS VACCINE) SMORODINTMp A.A.; BOYCHUKp L.M.; SHIKINAp Ye.S,; BYSTRYAKOVAp L.V.; PFJUDZEP T.V. State of 4MMinity in children vaccinated with live vaccine against measles. Vop. virus. 7 no. 1:59-67 Ja-F 161. (MIRA 14:4) 1. Virusologicheakaya laboratoriya Leningradekogo institute. epidemiologiij, mikrobiologii i gigiyeny imeni L. Pastera. SHEMA,-Ye.S.; BffCHUKp L*M* ACOM,laticam of complement fixation antibodiao in children vacci- mated with a live antimeaslas vaccine, Trudy Iminstospidei mikro- *biol. 2332-42 f6l. (HIRA 1632) 1. Is virusologicbeekoy laboratorii (rukayoditell - oblen-korres- pondent AMN SM.. prof..A.A. Smorodintsay) Uningradekogo inotita- ta opidmiologii i mikrobiologii imeni, Pastera. (MUSLES-PUMTIVE I110CUUTICS) (ANTIGIMS AND ANTIBODIES) SMRODIN75EV., A*A,; BOIGHUIE, L.M.; SHIKINA, TeS,; BrSTRYAKOVA, L.V.; TRUM, T.V. State of immunity in children vaccinated vith a live vaccine against measles. Trudy Len.inst.epid.i mikrobiol. 22:7-M (NM 16s2) le:nrusologicheska7a laboratorlya Leningradskogo, institute. spidemiologiip mikrobiologii i gigiymy imeni PMtera, (MMIES-PRNMTM INOGUIATION) (DMITr) L.M.. SBIKInA. Ye.S.; FISARSQ, S.A. Titration of antlaeasles dntlIodies in'donor sermw and gama globulin. Trudy Len.inst.spid.i. mikrobiole 22&61+-73 161, (MM 16%2) lt 1z virueologicheakay laboratorii (rukavoditelt ablen-korres- pendent AM SSSR prof. AeAt, Smorodintsev) Laningradskogo itsti~- tuta spidemiologil i m1krobiolo i imeni Pastera. (ANTIGENS AND AVT1WDIES) raAMMA. GLOBULIN) (SERUM) BOYCHUK L. M.; SHIKINA~ Ye. S.; T17KITIN, M. I.; MESULOVA, V. N.; TARDS, L. Y-; k REVENOK, N. D. SAFAFIOV, D. I.i SMOMDINTSEV, A. A. WTbIe Safety and Epidemiological Effectiveness of Live Measles Vaccine Developed in Leningrad." BOYCHUX L.N.- MAVL'V-UTOV, R.M. Losser cf petroleum produats at heat c-racking installations. Nefteper. x n,.=.L'tekh�m. no.llc-:-7 (MlRA, 18.-2.) 1. Nauuhno-issledovatellskiy inst-Itut po transport-u i khrane- ni*yu neft-I i nefteproduk,.ov, M. Amoont of growth substances Is the organs of tomatoes as related to nitrogen nutrition. Ukr.bot.shur. 17 no.1:19-2B 160. (KIM 13:6) 1. Inatitut botoulki AN USSR, otdal fiziologil rasteniy. (Tomatoes) (Growth promoting substances) Dynamics of auxins In germ1nating tomato seeis. Ukr. bot. shur. 17 no-5:23-31 160. (MYR- 13:12) 1. Institut botaniki A31 USSR, otdol fisiologit rasteniy. (Tomatoes) (Germination) (Hormones (Plants)) BOYCHMY O.B. DCstributian and dynamice of growth oubstanceis in yotmg tomato plants. Mcr. bot. zhur. 19 no.3t34-45 162. (14IM 15;7) 19 Institut botaniki AN USSRs otdol fiziologiia (Growth promoting subetances) (T=atoes) L Aii-& ENV (d) Be ACC NMI AP60242M SOURCE CODE: UR/0198/66/002/004/0114/0.121 ..:.AMC)R: Bo i9v yaha -(Institut ORO t Institute,of Mathematical AN ta-m tiki, AN UkrSSR). TrMs On the problem of antonowun determination of coordinates SOMME t PrikladWa wHianlka. v* 2p no* 4p 1966jo 114-121 ~'.TOPIC TAW s navigation system, coordinate system, inertial navigation equipment,,- Inertial g"nce gyroscopes, stabilized platfom,, error correction,, integral equa- tion, second order differential equation ABSTRACT i A solution of the Problem of the errors in autonomous determination of .~_'coordinates caused bV Instrummt errors of the systen and nonobservance of the initial conditions is given. For an arbitraryj~~~ gation~ system with a .'.:.horizon-stabilized platform, the equations for determining the coordinates with a &ographio grid i d d T Flow k + U + - cosgsink MA; ( . d d.%) -sink + + Cos Ip Cos kof M; dk d +~U.+ sin 4p a. (t); dt) Qw L 33472-66 .~.-~A-CC -MR& APW=O "whers..f.48 the lat1tudep X In the longitude; k is the angle between north and the 4iZed bearing of the horlsonUilly stabilized platform, CO., Wyp Oz are the projec- tioni xv, yt and a axes of the angular velocity of the trihedron VZI and U In the 4VgU2ALr velooity of the diurnal rotation of the earth. The system of error &D CM TOX Be., J" sin 9AX df df -where "ViT -t U + 1W s in + vg cin AP) va to 9* AP B~ vi dn k$ ccsAk "NE the error "aten C j -j Act 4 AP60~=O . ' '/ i~ - O CrA Cjjdn%+Cj 0 7W L os X x-Csdnx+dnx -W-sln xdf + F COG q d( - Cos x + A x-Cslnx+slnx -sinxdt + (C, Cm X& d( ~.Cfp! + Ut +V Xf (0); -'v, sin 90 + B. cos L 33472-66 0 S/~ 61/000/002/004/005 IPD3 0 2 D251 13 AUTHORS:- Boychuk.-O.P., and Temchenko, M.Ye. (Kiyyiv) -------------------- TITLE: A method of eliminating ballistic deviations in a triaxial gyroscopic stabilizer PERIODICAL: Avtomatykat no. 2t 19619 44 - 52 TEXT: The authors propose a scheme for a triaxial gyroscopic sta- bilizer, with mechanical correction to eliminate the ballistic de- viations arising through manoeuvering of the base or acceleration of its motion. The skeme is shown in Fig. 1. Gyroscope 1 stabili- zes the platform P around the axis of the ring K, and gyroscope 2 stabilizes it around the axis of the stabilizing plate S. On the axes of the gyroscope casings sensors 15 and 16 are set up to mea- sure the deviation of the casings from their initial positions.SM 2 and SM3 are stabilizing motors, to which the sensors are attached., By means of the inclination of the stabilized platform to the ob- ject at an angle proportional to the velocity of the object, and by Card 1 309714 S/102/61/000/002/004/005 A method of eliminating ballistic. D251/D302 varying the correction mechanism of one of the gyroscopesp ballis- tic deviations may be eliminated. The proposed scheme is conside- red on a theoretical basis. Linearized equations of motion are de- rived da. mRk dw_* - _i- Mgh a I W'.P W., - dt + dt H dP rh d (14) + Ilgh + 49 a wy. + mRh + W'-e) dl H H dt dt where We U Cos IF Cos V +UC034psinx; _Y_ R (15) V dx W~e U SIn 9+ k tg OF'31n 'A dt where a is the angle of turning of K with respect to the object, the angle of turning of S with respect to K around the axis of r(. volution of the stabilizerp e is the angle of platform 2 with re- spect to S, H is the principal kinetic moment of each of the gyr; Card 2//-? 30974 S/10 61/000/002/004/005. A method of eliminating ballistic D251YD302 oopee#. m is the mass of the.opindle 51 h is the arm of the spindle 4t U is the angular velocity of the earth, cp is the width of the., locusp and'3t is the path of the moving object. Special cases of the equation are considered (simplifications of the law of motion). A theoretical basis is given for the proposed method of eliminating ballistic deviations. In conclusion, a numerical example is given in which the velocity and ballistic deviations is calculated for an ordinary'gyrosc .opic stabilizer with mechanical corrections. There are 6 figures and 4 Soviet-bloc references. SUBMITTED: January 3P 1959 -Car d 3Y ACCESSION NR2 AR4OZ3M 3/0270/64/0001002/0049/004 SOURCEs Mh . Geodeziyas Abse 2052ozm P. AUTHORs Boychuk. TITLE: Procession theory of a kinematical3y imperfect thres-axis awsooplo. stabilizer with mechanical correction of horizon and azimuth CITW SOURCE:, VietTW*k Ky*yivstko w-ta, noe-591962s Sere mateme ta makhan., vy*pe 2, 88-101 TOPIC TAM: geodesy, mechanics, gyroscopes TRANSLATION: A throe-gyrosoope system for stabilizing a body with respect to At azimuth and,horizon is considered. The basic element of the system, a platform suspended in gimbalso is stabilized by two gyroscopes# to the casiMs of which are attached loads developing the oormatIM momints proportional to the deviation of the plans of the platform from the horizon. The correction of the I system with respect to "Unth may'be. aacouplished by meau of a load suspended r6d 1/2 ACCESSION NR AR4023281# in the casing -of a third Vrosoope or bV mearm of connecting the gyroscope, to a imagnetio compass, The problemais solved under the assumption that the wstabilizer has a number of defects: inacewwy in fabrication of parts, poor ladjustmant of the,axes, andincorrect placement of the 2o&ds* An analysis Of I the differential, iquatAons of motion of the system, obtained urAer the assUM20 tions defined that simplify the problem. shows that the basic err-ors in the 1,operation of the device d"oribed am predetermined by imperfoctLons in the Isuspension of the sensitive amw of the gyroscopes providing tbo stabilization* 10. Razdymakha.. SM ames Me, 19 rams :00 DA29 ACQs 66mar" --- ----- -- -8t6 -4/ 2' 9- _~k)41EWG(V)1tED;-2A (b), Pn Pq-Wg-4/~k-14/4-4 ASD(d) DC I ACCESSICN? NR: AP404W95 S/0021/64/000/0110/1294/1298- AUTHOR: Boychuk, 0. P. (Boyakuk, 0. F.) TITM: Stability and self-oscillationa of a nonlinear stabilization system SOMBs AN UkrRSR. Dopovidi$ no* 10p 1964j. 1294-1M, TOPIC TAM gymccopic system, hamonic linearization, energetic balance ABSTRACT: The author considerB a gyroseopic stabilizer as a self-regulating system. He developed a method for study of nonlinear gyroscopic systens which is based on joint upe of both methods: of the harmonic linearization and the energy balance. The periodic regimer in the system are derived fron the 1-in- eari;ed equation of motion of the instrLment, and the stability data are re- corded by moans of energetic relations, The problem of the gap is solved to the end In a general form. Orig. art. has: 17 formulae. rd 2/2 EVIT(d) BC ACC NRt AJ?603.1416 SOURCE CODE: LT/OC)2:L/66/000/003/0322/0327 AWHOR: BMqhuk, 0. PO -BOMWk"._~_ ORG:, Institute of Mathematics AN UkrSSR (Jhstytut~ matematyky AN UkrSSA) Tim:- Correlation of'errors'in the~.autonomous determination of the coordinates and oscillations of platforms in, inertMM navigation systems SOURCE AN tYkrRSR. Dopovidi, n06 3'- 1966,.322-327 TOPIC TAGS: inertial navigation. equipr~ent, gyrostabilized platform, navigation com- puter I*Ao~f"L_ ABSTRACT.- The author determines the direct connection between the angles of the dft- viation of a stabilized platform from the horizon and the errors of autonomous deter- mination of coordinates of an inertial system with arbitrary orientation of the plat- form in azimuth. The differential equatibno for the stable platform are those given by A., Yu. Ishlinskiy (Mekhanika'spetsiallrWkh giroskopicheskikh sistem (Mechanics of Special.Gyroscopic Systems],,,Mop.1963)o The expression for the deviations*6etween the actual angular velocities and the angular velocities of the ideal platform are expressed accurate to small 4pantities of second order* Expressions are derived for the input -quantities that must be applied to the computerp to eleminate the resuit'aa the angular errors as.vell an the parasitic torques acting on the gyro- scopesjo as well as, the platform oscDlations. Thifi-Y of AN UkrSSR Oe' Yus lablinst1gy (A. Yu. Ishliriiki~ SUB CODE: t7.i .12/_: Sum DATE: .68.)bl65/ ORIG MW 604 Ca BOXGHUK, F.K. (stanlglavskaya obl.8 pos.Solotvino, ulq Krasnoarmeyokaya) Came of e3ftenaive resection of the intestine. Nov; khIr. arkl.. no.3: 89-90 My-Je 160. 15;2) 1. Solotwinskaya ray==yab~l'nitsa.(9lavnyy vrach - N.M.Mosiyehuk) Stanislavskoy.oblasti. .(INTESTINkS SURGERY) BOYCHUK, R.F. Electrode-impedance in solutions of chromic acid. Ukrkhimxhura(-.28 no*9:1042-1047 .162, (MIRA 15:12) 1. Chernovitakiy gosv*arstvennyy universitet. (Chromic acid) (Electrodes) (Upedance (Electricity)) Tadeusz; BOYCHUK, Stefan; KDZIOL, Krystyna Studies on auto-antibodies In acquired hemolytic anemia. Arch. lamun. ter. doxv. 3:299-3D9 1955. 1. InstytUt Immunoolgil I Nwapli Dosviadezallaej PAN we Wroclawlu (Dyrektor: prof. dr. L. Htrszfold) Dzial Ismuzologil Ogolnej (Kisrownik: irof. dr. L. Hiresfeld) Panstwovy Sipital Wojewodski we Wroclaviu, Oddsial Vownetrsny III (Ordynator: dr. B. Boychuk). (ANIMIA, HMOLTTIC, imunoloff. auto-antibodies in acquired anemia (Pol)) AYZENBERG, B.L.; BOYCHUX, S.I. New modification and experience in using a closed electric network. Trudy LIEI no-33:124-142. 160. (MIRA 1418) (Electric power distribution) .BOYCHUK,, ~,I,, "i, 4 , # , I Achievement of a closed-loop network in a. M ?iP&l 6~anj~~ 0.38 kv. power'distribution system. Elek.stt 33 no.124 D 162. '(MM 1644DN (Electrie power distribution) . V SIROTA, I.M., kand. tekhn. nauk. (Kiyev); NAU14OVSKIY L.D. inzh (Leningrad); TSIRELIq Ya A:, inzh. (LeningrL),- Rxi , Z.I. (Bobruysk),- KAMENSKIY, A:F (Bobruyek); BOYCHUK, S.I. (Bobruyak); - h. (Kaliningra37,---MTMMT',--ru.S.-, inzh. (Riga) Neutral operating zole in electric power distribution systems. Elektrichestvo no.1:84-91 Ja 16,14, (MIM 17:6) - iK)YCB tr-lxf-,--111;~U-4 , - U3e of cloa-ed-loop 6 an-~ 0.1,8 kir. net,,rorhr In Ir' b'~Y%vr-` 0 Trudy LlEl no.4l.-9-,-99 qcl'- KMk 179b) 1. Llcbruyskiy eetevoy rav~:.111, ,,,-BIOY,C.HUKI -V-,,p,.Inzh.j KAZHAN, B.t inzh. Paving on stabilized road beds. Avt. dor. 28 no.ItlO Ja 1:65. (MIRA 180) BOYCRUK,,V., inth. Why are efficient road mterialm not used? Avt. dor. 28 no.4: 17 Ap 165- (mIRA 18:5) BDYCHUK, V.,l inzh.; YERNIN, F., inzh. Information. Avt. dor. 28 no-4:29-30 Ap 165. (MIRA 18:5) :;m: TRIFONOVA, L.F.; 130YC JKA V.~. ITYUKTINY A.I. _; VERBITSKIY, P.G.; PAN Characteristics of some soil forming rocks in the Valdai Hills and the 111ment Lowland. Vast. LGU 20 no.3:115-125 165. (~ffRA 18:2) i t 30YOUK, V.S., inzh. C------ -- Reinforced concrete curbins. Avt.dor. (Curbstones) 23 no-3:22 W 160. (MIRA 13:6) BDYCHUK. V.S. Experimental investigation of the use of filter-press dust from sugar plants in stabilizing soils with organic binders. Trudy Khar. avt.-dor. inst. no.28:81-85 162. (MIRk 17:2) lCryshopollskogo rpyonnogo komiteta lc3mmunisticbeskoy partil Ukrainy, Geroy Sotsiallaticibeskogo Truda.; STRBUOVA, N.A., red.; BEMY, A.P., tekbn. red, [Achievements of Irphopoil swine breaderaluspokhi Kryzhopollskikh zhivotnovodave Moskva, Izd-wo wZnsole,' 1958- 23 p. (Vaesoiusnoo obahcbeetyo po rasprostranenitu politich~skikh i nauchuykh snanit. Ser, 5. no* 26)e (KnkA 11:11) (Ttualtes Province--swine) BCYpM,yg&Ui Amovioh; MIKP-P-YJ40V, G., red.; GONCHAR,A., red.; [Pocket handbook for*the road bui3Aer] Karmannyi ispravochnik dorozb- nika. Kiev, Goo.izd-vo lit-ry po atrolt. i arkhit. USSR 1961. 254 P- WRA 14:6) (Road conotruction) BOYCHUK, V.S., insh, Stabilizing Solonetz; loamy soils vith organic binding materials and additions of filter-press dust. Avt.dor.i dor.stroi. no,1:68-74 165. (W RA 3.8: 11) Filtering fills on high". Kolrm 21 no.2:35-37 7 '59, (MIRA 12:7) ID'Upravleniya ID&I'stroyproyekt Nagadan Provlnc;--Road construction) BOYCHUX, VoV.. inst.. Determining modular coefficients in bydrological calculations. Ayt. dor. 23 no. 12:19 D f6o. (MM 13:12) -- -- A- -1 -'1 -,L A -- - -A.- N BOYCHUK~ V.V. Effect of slope exposure on the melting of snow. Trudy SVKNII no.2: 43-55 163. (MIRA 18-2) EU Vhl,"TSOV , A . S. 13.0.Y,CIRJ K V. V. Snow cover and the river regime in the northea3t of the U.S.S.R. Trudy STaIII no.2:56-84 163. (MJR-A 18:2) BOYCHOK2 V.V, Variability of natural phenomena and its e-EIMmation in establishing geographical regions. Dokl. Inst. geog. Sib. i Dall. Vost. no.7s29-36 I (V+ 0 (Ml%k !8t10) FaCe) ACC NRs AP6032957 SOURCE CODE: UR/0363/66/002/0110/1897/1891/"/ AUTHOR: Tresvyatskiy, S. G.; Boychun, V. Yu.. Yaremenko, Z. A.; Klimenko, V. S. ORG: Institute of Problems of the Science of Materials, Acadenq__qf Sciences A UkrSG (Institut problem materialovedenlya Akademii nnauk Uk-rSSR) TITLE: Some properties of foamed quartz glas SOURCE: AN SSSR. Izvestiya. Neorganicheskiye materialy, v. 2, no. 10, 1966, 1897-1899 TOPIC TAGS: quartz, quartz glass, foamed glass, thermal insulation, heat insulation, insulat- ing material gi-45-S -'A#30"7704~ 6kqss poeopsery , Pooeo3jry . Nefir RfSiSr-njor' 04LAWS .1 . I ABSTRACT: Some of the physical properties*of foamed quartz g1 s have been studied to determine its prospective use as a heat insulatiniz materiallZat high temperatures. The material obtained had a .density of 0.3-0.35 g/cm' and an actual porosity of 80-85%, 20 to 30% of which were closed pores. Large pores with a diameter of .5 to 2 mm were seen; small closed pores with a 0.1 mm din ter were situated in the wall of largerpores. The foamed quartz glass contained no crystalline phases. Its refractive index was 1.455 t 0.001. Compressive strength, determined on cubes of 10 x 10 x 10 to 20 x 20*x 20 mm, was the range 40-70 kg/cm2 at 20C. Thermal con- ductivity was in-the range 0.1160 to 0.250 kcal/m.hr. centigrade- The heat resistanct Card 1/2 uDc: 666.19+666.189.3 MVEWP(J)h TJP(c r-- 102-1993-67 ACC NRt AP6032957 of the material was tested on 10 x 10 x 16 mm, cubic samples by repeated thermal shock cycles: heating for 5 min at 1400C with subsequent quenching in water at room' temperature. The samples withstood 25-30 cycles. Additional shrinking of the sargles at 1600C was insignificant. The temperature of the start of deformation under 2 kg/cm2 load was 1680-1690C, while the failure temperature was 1690--1700C. An essential disadvantage of the foamed quartz glass is its devitrification at high temperatures. In this connection, the effect of various metallic or nonmetallic oxides used as additives [amounts not specified) was studied. It was found that trivalent ions (b in particular) inhibit crystallization of the material-, the inhibiting effect of quadrivalent ions is less pronounced; quinque- and sexivalent ions produced an insignificant effect. Uni- and divalent ions promote the crystalli- zation. Foamed quartz glass compares favorably with other high temperature insulat materials. Orig. art. has: 3 figures and 1 table. T' Sim COIS: II/ SUBM DATE: 04Dec65/ ORIG REF: 005/ OTH REF: 001/ ATD PRESS: 5099