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SCIENTIFIC ABSTRACT VASILENKO, V. - VASILENKO, V.K.

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CIA-RDP86-00513R001858730005-4
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December 31, 1967
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SCIENTIFIC ABSTRACT
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VASILNUO, V. (g. Xalgobek) Preventing cable InjrIes caused by rodents. Radio no.6:46 is 156. (KLM 9:8) (Ilectric cables) VASILEMO V. Performance of the TMZ car loader. Muk.-elev.prom. 25 no.7*18 Jl '59- (MIR& 12:11) 1. KoloaovBkiy elevator 111kolayevskoy oblasti. (Grain-bandling machiner7) A iJ AUTHOR: Vasilenko, V. 107-9-22/53 TITLE: Equipment for Super-Long Distance TV-Reception (Ustanovka dlya averkhdallnego priyema televideniya) PERIODICAL: Radio, 1957, # 99 P 33-34 and P 4 of the insert (USSR) ABSTRACT: The equipment for super-long-distance reception was in oper- ation more than 30 months in Voroshilov. It provided a regular TV-reoeption from the Vladivostok amateur TV-oent6r and from Japan. The aural reception was excellent and the video re- ception was good with a minimum of 300-400 lines. The TV-re- caption from Vladivostok had a high stability, while deep fadings were observed in the reception of Japanese programs, though the field-intensity of Japanese TV-centers is sometimes much higher than that of the Vladivostok TV-center. A "KBH-49-4" TV-receiver was used with slight modifications and accessory units for the video reception wid a "Rekord" TV- receiver was used for the aural reception. The TV-receivers "Temp-211, "Avangard", "Avangard-55", "Ekran" and "Luch" were also tested but the beat results were obtained with the two first mentioned types. The accessory equipment used for the su~er-long-distance reception is described in the article, I.e. Card 1/2 antennas, antenna amplifiers,-s~alsyna, rectifiers. Equipment for Super Long Distance TV-Reception 107-9-22/53 The automobile disturbances are easily eliminated by placing the antenna amplifier close to the antenna. Disturbances caused by the harmonies of powerful short wave radio stations were eliminated by a special barrier-filter, consisTing of HF and LF filter-stoppers connected with the cable and tuned to the disturbance frequency. The best results were obtained with the filter represented by figure 1. This article contains 2 figures and 1 Russian reference. AVAILABLEs Library of Congress Card 2/2 (A) L 13o25-66 EWT(d)/FSS-2 ACC hit: AP6000315 SOURCE CODE: IJR/0356/65/000/010f"%1030/0031 AUTHOR:, Vasilenko, V. (Engineer) ORG: Republican Union of "Ukrsel'khoztekhnika" (Respublikanekoye ob"yedifieniye "Ukrsel'khoztekhnika") TITLE: Dispatcher radio' communication in the Ukraine SOURCE: Tekhnika v sellskom khozyaystve, no. 10, 1965, 30-31 TOPIC TAGS: radio communication, radio co unication system, radio transmitter$ agriculture, t76!jer0vA-r&W,9,_ ABSTFACT: Dispatcher radio communication isused in 24 oblasts of the Ukraine for conrunication between central farmsteads, tractor stations, and mobile repair unics. The introduction of this service has considerably improved the operation oi the machine and tractor stations. Technical help to the tractor teams has become operative, and repairs, maintenance, and delivery of spare parts and gas, oil, etc., are better organized. As a result the productivity of the machines has been increased. Two radio stations handle the dispatch work. One has a-range of 30 km and operates at a fixed frequency in the 1600-2000 kc. range on one sideband. The station is powered by 8 dry cells or 12-V storage batteries. Card ------ UDC:.-63:'-621.396.72 L 13025-66 ACC NR: AP6000315 The radio station weighs 4 kg and costs 350 rubles. An ultrashort-wave radio- J station is used for communication with the mobile repair units. It operates at 57.1 - 57.5 Mc and has a range of 45 km. This station is powered from an a-c 220-V network or from a 12-V battery. It costs 550 rubles. The dispatchers of the central farmsteads and the accountants of the tractor,teams transmit informa- tion in the open. They are forbidden to use numbers, codes, and abbreviations to communicate with unauthorized correspondents, and transmit information on other; frequencies. SUB CCDE: 02, 17 SUBM-DATE: none I Card -2/ ~-S VASILEMO V.; GHERTMDV, B.; MIKHLIM, Ye.1,; redaktorl RODCHENED, N.I., ~-IeercGlehaekiy redaktor. (In Leningrad factories; a collection of articlenj Na xavodakh Leningrada; abornik statei. Leningrad, Leningradskoe gasetno- zhurnallnoe i kn-vo, 1956. 259 p. (HLRk 9:6) (Leningrad-Industides) BELOTSERKOVSKIY, Artem Markovich; SHTEYNBUK, Vlad4mJ Llvovich; red.; TMAOSIMVSKMA, A.A., tekhn. red. (Plactics in mininglPlastmassy v gornom dele. Stalino, Knizhnoe izd-vo., 1960. 132 p. (MBA 15:8) (Plastics) (Mining engineering-Equipment and supplies) VASIIXNKO. V.A. (g.IvAnovo (oblnstnoy), Sndovoyn u1., d.16, ".83). Interconnections of interanl testicular veins and veins of pnmpiniform plexus. Arkh.anat.giat. i embr. 34 no.6:94-99 N-D 15'.7. (MIRA 11:3) 1. Kafedra topograficheakoy anatomii i operntivnoy khirurgii (zav.- prof. H.D.Zlotnikov) IvanovRkogo meditainskogo instituta. (TESTES. blood supply internal testicular veins & veins of pamDiniform plexus, interconnections) VABILENKO, V.A. (Ivanovo (obi.), Sadovaya u1., 36, kv.106) Anatomy of the renal veins. Arkh.anat.glst- i embr. 37 no.7:92 Jl '59- (MIRA 12:10) 1. Xafedra topograficheskov anatolmii, -~ operativnoy khirurgli -) Ivano 'L (zav. - prof.H.D.Zlotnikov vskogo meditainskogo instituta. (KIDNEY, blood oupply) VASILENKO, V.A. (Ivanovo (obl.)., Mazhavoy peroulok,, 14t kV- 14) Veinous anaotomoses in yomentorenopexy, Arkh. anat. gist. embr. 39 no. 10:94-98 0 160o (MIRA 14:2) 1, Kafedra operativnoy khirurgi:i (zav. - prof. M.D. Zlotnikov) Ivanovskogo gosudarotvennogo meditsinskogo inatituta. (HYPERTENSION) (OMENIU4-SURGERY) (KIDNEY-9-SURGERY) VASIMKO, V.A., kand.mcd.rnuk Renal f1motion -entjx-=opex7 in porU-1 h7pr-a-tenBion; ar. ex- per*ental study. Urologiia no.5a8-11 262. (IM 15:12 1. Iz kafedr7 operativnoy khirurgii i topografichookoy anatomii (zav. - prof. M.D. Zlotnikov) i kafedry farmakologii (zav. - prof. G.M. Shpuga) Ivanovskogo meditsinakogo instituta. (PORTAL HYPERTENSION) (MMMM--SUGERY) (KIDITEYS--SURGERY) K.Idney fw',ct-i rrl d'ar j ni; nrcce~E Fiziol. %hur. 49 tV '63. 1. From the Dopartments of Operative l)'urgery and of PharmacnIogy,, Medical Institute, lvanovo. VASILENKO, V.A. Compensatory capacity of the ret3ectrid kidnoy. Blul. ek,4p. biol. L, med. 57 no.6t26-30 Je 164. (MIRA 18:4) 1. Kafedra topograficheakoy anatomii i oprativnuy khlrurgii Ivanovskogo meditsinskogo instituta. Nauclinyy konsulltant - prof. G.M.Shpuga (deceased). ,V.A -)fskikh nsuk- RASKAT, M.9 ISIVNFP, vnik zapassA rid. filos, pclkovnik zap~sa,, kr',nd.- icsofskikh nauk; SEREGIh,'V.j polkovnik- zapess, kand. istoricheskikh nauk; SKUPIKHINY M., polkowelk zapass k great military and labor vicWry. Ko Vooruzh. Sil 6 no.8-68-94 Ap 16 5. ~ZIRA 1816) VASILENKO, V.A. (Moskva) Concerning the realization of absolute invariancy principle in linear systems Vith variable parameters. Izv. JW SSSP. Otd. tekh. nauk. Energ. i avtom. no.3:Q7-100 MY-Je 161. (MIU- 14:7) (Automatic control) e 6) AUTHOR: 'Vasilenko, V. A. 39610 8/19 62/000/004/031/105 D222YD309 TITLE: Invariant, optimal, linear systems with variable para- meters PERIODICAL: Referativnyy zhurnal, Avtomatika i radioelektronika, no. 4, 1962, abstract 4-2-93p (V sb. Avtomat. upr. i vychisl. tekhn., no. 4, M., Mashgiz, 1961, 258-267) TEXT: A control system is considered which is described by linear equations with variable coefficients, and which is invariant with respect to perturbations and changes in the -oarameters. The ztruc- tural schemes of linear invariant systems (I~) with optimal cha- racteristics are derived. An IS makes it possible to improve the quality of reproduction of the useful signal, while simultaneously improving its stability. The principle of invariance against exter- nal perturbations can be extended to the case of variations in the parameters (internal perturbations). Using this principle it is -possible to maintain the optimal characteristics of a control Sys- Card 1/6 S/19 62/000/004/031/105 Invariant, optimal, linear D222X309 tem irrespective of the character of the change in parameters. The essential features of the proposed method of cbnstructin- an TS 1z' - are as follows., A linear dynamic system with variable parameters is considered. With optimal adjustment of the system it is described by the following differential equation: x n + al(t)xn-1 + a2(t)x n-2 + ... + an(t)x = F(t) (1) where F(t) is the control signal. If xal is a particular solution of Eq. (1) and i is the general solution of the homogeneous di-f-fer- ential equation, then the general solution of the equation is of the form: x X + x 1 .01 (2) With non-op'..4.mal adjustment the differential equation of the system lCard 2/6 S/1 94/62/000/004/031/105 Invariant, optimal, linear ... D222/D309 xm + Bl(t)xm- 1 + B2( t)xm-2 + + BMx = fl(t) (3) where fl(t) = P(t) + n(t); n(t) is the perturbation. The general solution of Eq. (3) is written as: X2 = X2 + x o2 (4) Por optimal motion of the system (4) and (2) it is necessary that the initial conditions in.EP. (1) and (3) be' identical, and the right-hand parts of E s 2 nd (4) be identical, which is poss- 1~ . k ) a ible when a = Bl;cf t) = F(t). This means that it is pas.sible to select f 1(t~ in u h a way that the identity xi + x ol = x2 + xo2 is fulfillqd when 5E1 / 37c2. This also means that i1 to system (3) we --_Add the signalcf(t), then its output coordinate x2 will vary accord- Card 3/6 S/19 62/000/004/031/105 Invariant, optimal, linear ... DZ22YD309 ing to the optimal law. Eq. (3) is transformed into: xn + a (t)xn- 1 + a n-2 . + a (t)X P(t) + T(t) (5) 2 1 2 2(t)x2 + " n 2 The equivalent input signal~9(t) is determined from Eq. (1) if: x2 = X1 + X3 where x 3is determined from (5) wher, F(t) = 0. The re- lationship between the input and output signals of an opzimal sys- tem is determined by means of the operator A 1 )~j = A, F(t) (6) The same relationship with misalignment is expressed by means of the operator A2 1. X2 = A2f 1(t) Card 4/6 Invariant, optimal, linear then x3 = A, T(t) The ekuivalent signal is: 3/194/62/000/004/031/1()5 D222/D309 (8) T(t) = All LA2fl(') - A,F(td (9) If the investigated system has opiimal parameters, but is under the influence of not onl the control signal F(t), but also of The in- put perturbation n(t~, then A 2 = A1 f 1(t) = P(t) + n(t) (t) = n(t) (10) Card 5/6 S/194/62/000/004/031/105 Invariant, optimal, linear D222/D309 Consequently, if an additional signal r(t) is fed to the system, then it will be invariant with respect to perturbations and devia- tions of the parameters from their optimal values. The structural scheme is obtained on the basis of expression (9). 2 referencese Abstracter's note: Complete translation. _7 .Card 6/6 25776 3/020/61/139/002/096/017 0 ce 6 3 B104/B205 AUTHOR: Vasilenko, V. A. TITLE: The possibility of generalizing the principle of invari- ance in linear automatic control systems with varying parameters PERIODICAL: Akademiya nauk SSSR. Doklady, v. 139, no. 2, i961, 3?4 326 TEXT: The theoretical assumption that any coordinate of a linear-dynamib system is independent of external forces was mathematically substantiated' by N. N. Luzin and P. 1'. Kuznetsov (DAN, 51, no- 4, (1946); DAN' ~1, no. 5, (1944)). This problem was further develo' ped by V. S. Kulebakin.(DAN, 60p no.21 (1946); DAN, 68, no-5, (1949)) who showed new ways within the' theory of automatic control, which are based on rules exhibited by com- bined automatic systems. The realization of the prineXple*of invariance~-- developed for systems having constant parameters, meets with considerable difficulties in numerous electric systems, since some pirameters of the components of the circuit change during operation. The theory of in- Card 1/5 25776 S/02ol6l/139/002/006/017- The possibility of generalizing... B104/B205 'variance can also be applied to systems with varying parameters. Here,. disturbances mean not only external forces acting on the system biit also inWer forces produced by variations.of the parameters. In view of this fact i-t is possible to solve the ;roblems connected with the design of optimum, linear, automatic control systems on the basis of t~e theory of invariance. A knowledge of the optimum linear characteristic of the ~b- ject to be controlled, however, is required for the purpose. Deviations from this characteristic.are attributed to the action of external distur, bances. The system allxt + allxi + + alix, + + af. X. 021X1 + alsx-2 + - - - + abX1 + + a2A X~ A (0, . . . . . . . . . . . . . . . . . . . . . . . . . . . aAjXj + (1k2X1 + % -+ a',,xj + + ak.,V. -F A (0, . . . . . . . . . . . . . a,lxl +a,2xs + - - - +a.ixl,+. . . + is assumed to describe a dynamic system. a are oPerpLtor polynomials;' ij- ,Card 2/5 '25 7 76 S/026/61/139/002/006/017 The possibility of generAlizing... B100205 a is an operator polynomial with varying parameters; b (t)XII k1 'klXl 0 1 1 + b,(t)xt + b where' x are unknown time functions. The system (t)xl' I 2 . becomes optimal if a a Then, one has a 0 x" + c X11 + c Xis k1 k1' k1 0 1 1 2 where ci are constant coefficients. Next, the condition is established, under which a coordinate x of system (1) will become independent of one or several forces f,(t) afid, accordingly, of.the deviations of bi(t) from . ci, Here, fk(t) is'supposea to be an analytic function which.is holo- . System (2)'is written'*iri the form morphic in t - t o 00, +ally-2 + atiXt + - - -+ al.4 < atxxl + ajjx2 + a2txt + - - + a2-IX" (01 . . . . . . . . . . . . . . . . . . . . .... aklxi + akIX2 + - - - + akIXI + - + aAnXn &A (2) e ................ I anIXI +a,,.x2 +. + aaxt + + a--X,, A (0, Card 3/5 2-,776 3/0~0/61/139/002/006/017 The possibility of generalizing... 3104/B205 where F + aklxl - a x is the k-th resultant disturbance;'. (t) ' f (t) k1 1 k k ~ Sihee (2), unlike (1), is a system,with constant coefficients, it is ne- cessary and sufficient for the fulfillment of the demands'made here thEit, the minors/A of the detprminaht of (2) be zerot- 0 (3). The ii following summary is presented on the strength of a theorem by Luiin and Xuznetsov: If it is possible to indicate.the differential operator a 1~ kl , which transforms F into a holomorphic function within a certain interr. k(t) val, then every coordinate x of system (1) will be indpendent of vari- ations, of the parameters b (t) - a I bi(t) c, and b throug~- 2(t) - 02 0 0 out1his, interval. This is only possible if condition (3) is fulfilled, and if system.(2) permits solutions (x 3inder the' cdnditionli 1, x2, ... I Xn x (t X1 (t 0 , This means that in this case, the principle of . 0 0 invariance can be eictended to linear systems with varying parameters; Card 4/5 29'16 SI'Q2016!115910021006101-, The possibility of generalizing B'04/B205 In practice, the present problem results in finding the resultant dis- turbance Fk(t), which can be obtained by comparing the reactions of system (1) to the forces f,, f2# .1 fnacting on it with the reactions of an optimum system having constant parameters to control fozees, There are I figure and 6 Soviet-blocc references PRESENTED: February 12, 1961, by V. S- Kulebakin. Academician SUBMITTED: March 17, !960 Card 5/5 K oc yi-.?.w, ly,tients. Vor. 8: 10) (MIRA 1 I . I A-'~ll In.3tLtt,t a c,,-j-' USSR Human and Animal Morphology (Normal and Patho- S-5 logical). Blood-Vascular System. Vessels. Abs Jour: Ref Zhur-Biol., No 17, 1958, 79141. Abbtract: the splenic and lower mesenteric veins, while the left gastric vein already fall3 into the common trunk of the portal vein; (11 cases) or by means of a fusion of the upper mesenteric and left gastric veins with the common trunk of the lower mesenteric and splenic veins (10 cases). or from two trunks, one of which is formed with the fusion of the mesenteric veins, and the other - of the splenic and left gastric veins (9 cases). Card 2/2 44 W.311YENKOP V.A. In flue.1ce cf ~-3 h- :-:7r - r,: c vy" 71i.,"ji.. prooels of ro.5z601-~ tly lf'j,5~ 1F, 4aditsinskogo VELIKANOV, A.A.; VASILENKO, V.A. Electrolytic tin separatu-icr fr= KCI --~ SnS system- me--jt5. Zhur. prikl. khim. 37 no.9:2066-2070 S' 164. (MIRA 17:1C) 11. Kiyevskiy gosudarstvennyy universitet. VASIIENKO,, V.A. ~n~trcduc~tion of conveyor systems for the production of rabber mixts. Report presented at the Third 13-1-Union Conference on Automation and mechanization of major rubber production processes, Dneppopetrovsk, 2-6 Oct 62 VASILENKO, V.B.; VARTANOVA, N,S. Age correlation of gr&nitoids by thermoluminescence. Geol.1 geofiz. no.7tl7-31 163. (MIRA 16:10) 1. Institut geologii i geofiziki Sibirskogo otdeleniya AN SSSR, Novosibirsk. VARTANOVA, NIS.; VASILENKO, II.B. Thermoluminescence of granitoids of eastern Tranabaikalia. Dokl. AN SSSR 150 no.5%1109-1111 Je 163. (MIRA 16:8) 1. Institut geologii i geofiziki Sibirskogo otdeleniya. AN SSSR. Predstavleno akademikom V,S,Sobolevym. (Iransbaikalla-Granite) (Luminescence) 4A~.; i. -- .- ,.71.~j , V. D.-"The --'.thods rf a!iall-zirl-- ores ef-*-,-Jc.',en-l~.:-,l zaniski (Dnepropetr. c-cs. I ': ' i:auc!-, it~ns - ~ ), Vcl- )CM-i , P,. 173-83, , 7 I- SO: U-5240, r~, Dec- 53, (Letopis 'Zhllrnal tn,,,I.h Statey, Illo. 25, 191~9). i1ttection of some motgIs Wf UlUltnol V- - W and W Wilkiii Z~A 'Iff uihns,, A13- =. 0a"). Kbim. Sauk S(S), The optical properriu of tUir oxinates were used to detect lkfol+, !Vls+, V", TiA+, UOt-, Cu*+. Zn", and All'. Ho4+. W". And V" were detated in. Cu Solos., Zn soffis., and steel. The 8pukloliv.01 (1) Tras utually in ACOR Soln" For W, 2 drops 4,0 1 c An. Is added to a dm--,) of mutple aL a 611de. Duk-ITeca rectanjuLir crystals. frrquently in, rowttes, rdattd to the triagonal system are fcwmed. By 13ptn, with ale, I FxLr. larrer vy~tuls, scnietL-nes widl forked tridi, are tomed. Angle uf extinction is M-40', crystal Ax~ D 09-0 21 tum , v7d ?i Is ~,~fr~w thazi Ehat of I Detei-t- able MM in P 06 ~ IV',, dOn litnit I "ON).of"'O V'w v 1" f Y' A~,"H -.~ut their furm rxd Wor dercud n ti t A,UH con 'it, U~ e. Y r f foul rv"I~m;:Jv, arv b~rm, d i0i i A t I A I Ob-, III, it t ~ high. r th '11 t"'.'t "i 1. T)" 'hr"i,m w inclilIVA C.'.fincti'm. Tla fiij~ n fJ the I, ~ I r'. '-t 6 1, 't a I k r;, cly'.TA sl~v k 0.~V- 0.461 ~ ""Wis. limi( I AJOO'l '411. Mo ~riomv i~-, j,ptd. frwa '%W,7~ it '. Oil v'lwl' l'y I I ""Ill. I%- yvtlmv.~u:ol Tvaliliblv% 1~ifli plo'6mi'm tmw 11glit yvi- low 1" PCI(clid,le inin. il 1).txql " Mo, 1, dilli, )ijnit I 'I ill. 11"M 11141'rul wid VC411. by Me. I t'Al. and a cr~...Jlo N 1, 'SC% V'r KSCN. Brij!st- ,-ellow, almost z~rzugc~ cut-es and tralizzium funit. By pptrt. fmai AcOll soln. arq krmed lemon-yellow culrc4, rapidly groupirg Irlb, Iftndritts. The crystuls are related to the wbic syi(vin aud are 4)ptically isottople. Detectable mill, is 0.2 -, Tilv, diln, Nwit I :NOMOO, For IM " * 1 4, dm;, of gurnple is ucidifltd wilb 3% MOlf, a drop of iat'l. iadOcd, grA the nift. h~zwtctj to 80", Addn. of 45a W"w I bota. (ofma a vellow lipt. Azhich., by heating, turns tn relf. orange prisins with truncated 01m) which Iona rrjii:ttcr.,! 'The cr~SW3 have WAH and Inclined vmh~cl i'"I auglL -.,(, "tInction P3-28', and n hf~,jlier Hum th-it of 1. The size' af the-c monoclinic crystalA L.; 0.28-0.3q nim. Detectable: min. is 0.0-1.1 -f UOl*', diln. limit 1:230SWO. Cu oitnate i; pptd. lit AcOtf soIns. bufferi (I with NaOAc. ni alk. Nn tar. trate soln., and in N114011- Addn. of 4%1 stOn. ppts. dirk. green to yellow needles. which for-in rosettes. The nerdlei 'have wealc p1wehmimi, pirallef cktiuctlon, and ti bigher timn that of 1. Detectable min. is 0.02 -y Cu limit I - 250,(M. For the Zn test, a d, up of &nul ticidifs with M/O AcOll and heatrJ to GV. Addn. a 1% 1 viln, ppt3. yellow-gicen elongated pr6ms. By pptn. from solno. hufFered with NaOAc ue foanitq '(-,erystals und -itudrifeq. Tht-ic nimoclinic cr)stals have ntf,. r= index, rfeak pleo- Chrolsm, parallel and inclincd extitetlcn, and 9s higher than that nf 1. The angle t;f vttlactir% is 15-14', cryatal tize ~0.21-0.90 rrm., d1:tmtaI-.;c min. U~Ojg -, ZrL**. dila. limit I 1:52,0M. Plitti. of Al tixinate from AcOll sciln. Luf&red with NaOAc forms lung rectanal.-,s %vith split emll and ,hpcd in r ttcs grQ - , Aso, a crybt.d of tartaric acid and a drop of N11,C1 soln. are added tel a drop of test soln. The Uve, k-) 0 ni:xt. 6ittvOized by Nfl.014 and heatee to 7&.10'- A 4 % I soln. anti a drup u( IM1,01 I ate added and the mixt. Is he-ated again. VdIo%-gic,-,n fectangics In ro%ettes I)pt. The moncefilik pri5ins have parallel and indined extinctinti, ang!e 'J extinction M-24', and ncg~ zune fildez. CrYllu) ,tic Is 0.1-3-0,30 mm., (ILtectaWe miti. 1,. 0.02 -e W". dila. limit 1;3CjO.(J(X). W, V, and Mo catt he dclect"I in Cu solns., acidified with 30170 AcOlf Pand Niffert-d by a czy~tal of NaOAc by addit. of 10/0 1 solti.; in the cold, the ozj- nates of V: Mo, and Cu art formed, and the-se cat% be dllli~r- entiated by color, form, and size, On heat1q, W oxinate ppts. I.LmItIng Wins are OvW - 8:1, Cu:V - 4.1, and CuAlo, - 10: 1. Similarly in Zu wltim. 11mitive mflos ate Zn: W - 6:1, Zn: V - 4: 1. -ind Za: Mo - 8; 1. In Cu-Ztk snin. ouly Cu oxinate is obfervtd. Iroz st"I "Milfis tev- tral gmtns iLre dis4olved iz HCI (1: 4), oxidized b- drops of HNO., dild. with ITA and fUtemd. The Tipt. 13 wuhcd witI; dD. HCJ (1:10). The ppt, conWns WO, and &.(~ on a slide with N&OFT, netivalized, and acidified with gLAcW AcOH. Adda. of 4clo I gain. ppts. yellow-geen rectangles nf W aLivate. The filtmu, after sepn. of A'01 end Si0j, iA heated to boiling, made ilk, with VVO NaOR, amd 61tered- .This filtrate is heated to 80* and iscidL4ed with AcOH.~ Adda. of 4% 1 solu. forms yellow rectangics tied pri=s of V: oxJnate and ye3low-grem marbulitri; of Nfo oxicate. S/593/bO/000/000/004/007 D226/D302 AUTHOR; Vgsjjenko6-X--AL9 Candidate uf Chemical 8cienceB TITLE: Amperometric titrations of Ce in Al alloys SOURCE: Soveshchaniye po khimicheskomu. kontrolyu proizvodetva v metallurgicheskoy i metalloobrabatyvayushchey promyshlen- nosti. Dnepropetrovskv 1958, Khimicheskiy kontroll proiz- vodstva v metallurgicheskoy i metalloobrabatyvayushchey promyshlennosti; [doklady soveshchaniya) [Dnepropetrovsk] 1960, 176 - 183 TEXT: The present work was motivated by the absence of a suitable method of determining Ce in A~ and Mg alloys. Solutions of pure Ce(SO 4)2 containi.ng 0.2 X 10 - s x jo 5 g equivalents of the salt,~~ were used and were titrated with 0.01 N oxalic acid, Mohr's salt and FeSO 4# Ge4+ was found to give rise to a diffusion current when. an external emf (1 - 1,4 v) was applied and when Pt electrodes were usedy and also without the emf it a Pt and a Hg iodide electrode Card 1/3 S/59Y6O/OOO/OOO/OO4/007 Amperometric titrations of Ce in D226 D302 were employed. Oxalic acid titrations were carried out in 0.8 - 1.ON H2SO, with a max. rel. error -c-_1 % with an external einf and a 1.5 - 2 % error without the emf. Aluminum interfered at Al:Ce ratios greater than 40:1 and the accuracy was also decreased when the aci- dity was in excess of 1.25 N H2SO 4 and Al:Ce was 10:1, Aluminum and also manganese should be separated from the sample prior to the ti- tration - other ionsp such as Mg, Out Zn, Fe*etc. did not interfe- re. Titrations with FeSO 4 and b1ohr's salt were found to be less sa-':~,. tisfactory, althought the procedure was simpler, the relaniaxo er- rors reaching 7 % in individual cases. From these results the au- thor gives full details of analytical procedure, which consists es- sentially of separation of Al and Mn with subsequent titration with oxalic acid. Time of estimation was 1 - 1 1/2 hours. Results of test determinations are tabulated, showing the rdlo error to be

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