SCIENTIFIC ABSTRACT ANGELOV, D. - ANGELOV, S.

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December 31, 1967
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ANGELOV, 1), Plan for Organizational and Technical Measures in the Text'le Industry. Leka PronisiLlenost (Liplit Industry), dg:10:Sep. 1955 ARS. JOUR. rLMlm,p 2.960, No. M" A RS'-'.Ffi CT i o r u S, C W S X q; j iLj I tr. A V t 0 -,v-,-~iin mul t i c r.) A. o r v,'i fo c tn a t t r n, aiscrioed. kh'GELOV, D. The Permanent Rationalization Exhibition. p. 2. RATSIONALIZATSITA. Vol. 6. no. 5, May 1956 Sofiia, Bulgaria SOURCE; East FXiropean Accessions List (EEAL) Library of Congress, Vol. 6, No. 1, January 1957 ANGELOV, D. Possible surgical therapy of poly-radicular teeth. Nauch. tr. visah. med. Inot. Sofia 39 no.5:73-81 '60. 1. Predstavena ot prof. d-r Sl. Davidov, rukovoditel na Katedrata po khirurgichna stomatologila. (SURGERY ORAL) ANGELOV, Dim., akad. An international colloquium on the Balkan civilization, held in Rumania. Spisanie BAN 7 no-3:67-74 162. ANGEWV, D. Working out a general method for detemining the economy of subudtt-~d Innovations. Ratsionalizatsiiii 3 no.3:5-6 163. AI!GELOV,D.,, prof. A scientific conference in Italy. Spisanie BAN 8 no.2r47-51 163. AHGhWV, D, , Ceonforence on the work of the experimental bases. Ratsionali- zatsiia 13 no.11: 38-39 163 ANGELOV., D... autrudnik; KONSTANTINOV, T., sutrudnik domputing the economic effect in production and operation of machines and equipment. Ratsionalizatsiia 14 no. 3:11-15 164. 1. Instttute of Inventions and Rationalization. AWIFLOV, Dimitur Al shorter mathod of distributing the br.igtfi TrIl" ~seni 6 no.'O-,58-,65 16/ L 4. MADMIOLOV, A.A.; MAKEDLINSKI, V.V.; JINGEILOV, E. Methods for determinin, mononucleotide compouition (,f ribo- nucleic acids. Izv blokhIm BAN 2:31-37 164. 1. Central Labonitcry of Blochomintry of tho Pulp-Irian Academy of Sciences, Sofia. I". Chfdr of Biocl-imiotry tit the Higher MedIcul Instttute, Sofill (for 101ge'lo, ) I C !.all! loi 1 1, LI j r) ri r i (I f r.--::i u ',Fi r f r!i t..* ()-r t3 r unde r t1he h wu I-) f hyd rc.f-- tl -i c:io ~ I z v n 1 7, P, N 2 - Ce n t ra I ib,., i~ *-,-.:,y f 'L, r~I'Ls t ry f '-h(~ 51, %'1 f n't o' rv a t -rIjI'e V Card 112 ANGEIPV , Em. Virgin land soils in the Bulgan District (Mong-lia) suitabIe -'or agriculture. lzv Inst "Nikola Pushkharov" 6 37-60 2,63. ANGFWV, G., prof.; ZJIULTOV, Al., inzh. Ebcamining some Balgarian standard V-belts. Yashinostrocne 12 no.3t32-35 Mr163 ANGELOV Y G. Substantial deviations in the development of large blood vessels. Izv Inst morf BAN 8 73-87 163o ANGELOV, G.; MANOLOV, St. FrinCipal Bources of blood supply- of the liver. Naucb. tr. vissh. red. inst. Sofia 39 no.1:71-88 160. 1. Predstavena ot prof. D. Kadanov, zav. Katedrata po anatomiia na cboveka. (HEPATIC ARTM anat & histol) MANOLOV, S.; ANGELOV, G. On paired branchea of the abdominal aorta rrupplying abdominal organn. Nauch. tr. vissh. mod. inst. Sofia 40 no.5:171-180 161. 1. Predstavena ot prof. D. Kadanov, rukovoditel na katedrata po anatomiia no chovoka. (AORTA anat & histol) MAPOLOV, S.; ANGELOV, G. Anatomic-topographic notes on hilus renalis and the blood supplying of the kidneys. Izv Inot morf BAN 4:207-216 161. (BLOOD) (KIDNEYS) DZHIZHEV,I.,inzh; ANGELOV,G.,inzh; IVANOV,P.,inzh. The Kurdzhali bentonite as material used in casting. Mashinostroene 11 no.2:19-23 F 162 ANGELOV, G.; CHUCHKOV, Kh. On pancreatic ducts. Nauch, tr. vissh. med. inst. Sofiia 42 no.1:49-60 163- I. Predstavena ot pi,of. d-r D. Kadanov. (PANCREATIC DUCTS) (ANATOMY) ANGELOV.G. Pathogonic proportioB of trich(moriada, aarriage of TrIfAlumonam, wid clinical manifestatloris of trichoramiasis in hens. Izv Vat inst zaraz parwzlt 8t!89-194 164 IT, ANGELOV, G. Lektsii po inmshinni clementi. (Sofiya) Nauka I izkustvo (1951) Vol. I (Lectures r .14's1 . , . on i achine 1 arts. I art 1 Contains theov~ ('11 I-r '!Cxe~'s and V-.e~ir connections) 5C: E"'Al, Janusr-, & . -eLiusry 19-53 So: Vol. 7, I'el,. 2"r., ANCEUN2 C. Success with tractor construction in the PiT-rmiin I-e-c-ple.'s hopublic. p. 2h. It, ol. 6, no. 8, Auf-. 195.5 Z11, :-I" I E Oof iya, Fulvaria So! L~,atern Lurope~~n Accession Vol, 5 No. 1 Jan. 1~5t, 2 -ci /2 1 PHASE I 1300K EXPLOITATION BUL/2108 )kc:; Angelov, G., Professor, Engineer Mashinni ele-aenti (Machine Elements) 2d ed., rev* and enl. Sofia~ Nauka i izkustvo, 1957. 719 P. 4,062 copies printed. Ed.: V. Sokolov; Tech. Ed.: Sl. Dukadinov. PURPOSE: This textbook is intended for students of vtuzes. COVERAGE: In this second revised edition the author discusses gener- al types of machine elements, The book consists of 3 parts. The first part deals with elements for connecting machine parts, the second part with rotary elements, and the third part with elements transmitting rotary motion. The author presents chavacteristics of the individual elements under various loads and methods for their design. The author mentions Soviet authors A.I. Petrusevich, V.N. Kudryavtsev, V.Polyakov, and M. Zubanov, and Bulgarian Engi- neer D. Khristov. He thanks Doctor Boris Popov, Assistant Pro- fessor and Engineer K. Arnaudov. There are 47 references: 27 Soviet, 9 German, and 1 Bulgarian. Card 1/12 Machine Elements BUL/21o8 1.12. Spline joints, 45 a. General characteristics 45 b. Design of spline joints 49 1.13. K-shape profile joints 53 2. Screws and Bolts 53 2.1 Formation of thread and types of threads 53 2.2 Bolts, screws, and nuts 65 2.3 Force relationshipsfor bolts (screws) with square and taper threads 68 2.4 Efficiency of a screw 73 2.5 Self-locking screws (bolts) and methods of preventing loosening of screwed joints 76 2.6 Design of screwed joints 83 2.7 Strong and tightly bolted joints for use at high tempera- tures 99 2.8 Calculating the height of bolt (screw) and nut heads 101 2.9 Designing screws (bolts) for bending and shearing 109 Card 3/12 Machine Elements BM/2108 c. Design of resistance-welded joints 185 4.5 Soldering 188 4.6 Soldering and types of solder 188 4.7 Design of soldered joints 190 5. Press-fit joints 191 5.1 Types and construction of press-fit joints 191 5.2 Design of press-fit joints 194 a. Determining the the maximum stress in the hub of press- fit joints 195 b. Determining the maximum stress in the shaft of press- fit joints 201 c. Determining radial tensile. stress and radial compressive stress in the matin palts of a press-fit joint subjected to a normal (radialT pressure 205 d. Effect of surface roughness of mating parts on the tightness of a press-fit joint 2o8 5.3 Determining the maximum axial thrust and torque which may be transmitted by a press-fit joint 210 5.4 Axial forces required for assembling and disassembling a Card 5/12 Machine Elements a. Sleeve couplings b. Comi)ression couplings c. Sellers- couplings d. Flange couplings c. Couplings with radially 7.3 Flexible Couplings a. Couplings with kinematic b. Oldham couplings c. Toothed couplings d. Universal joints e. Flexible couplings f. Pin clutches g. Friction clutches h. Automatic clutches serrated end elements flexibility BtTU/2108 291 293 296 297 301 305 305 306 309 312 319 331 335 356 8. Bearings 359 8.1 Types of journals and bearings 359 8.2 Design of plain bearings 361 8 3 Designing plain journal bearings with fluid friction 369 8:4 Designing plain thrust bearings 489 Card 7/12 Machine Elements BUL/2108 PART III. MACHINE ELEMENTS TRANSMITTING ROTARY MOTION 9. Too 4ed-gear Transmissions 489 9.1 ypes of gears 489 9.2 General law of gearing 493 9.3 Basic relationships for spur gears 496 9.4 Spur gears with cycloidal tooth profiles 502 a. Point-contact gearing 5o6 b. Advantages and disadvantages of cycloidal gearing 509 9.5 Involute spur gears 509 9.6 Working profiles of teeth-and the duration of contact [contact ratio] in involute gearing 513 9.7 Limitation of the gear ratio In a normally functioning gear train. Limited number of teeth 519 9.8 Involute " I. internal gears. Internal gearing 523 a. Duration of contact [obntact ratio) in internal gearing525 b. The minimum number of teeth in Internal gears required to avoid interference 527 9.9 Cutting of involute spur gears 528 9.10 Initial profile for spur and bevel gears. Standard gear- Card 9/12 Machine Elements BM/2108 ing systems 533 9.11 Gear cutting with a pack generating tool or a shaper cutter 537 9.12 Correcting tooth profiles 544 a. Interference in gears 547 b. Zero gearing (normal gearing) V-zero gearing [unequal addendum and dedendum gearingj and V-gearing (combined gearing] 551 9.13 Helical. gears for parallel shafts 570 9.14 Tooth damage 578 9.15 Design of gear teeth 579 a. Design for bending 579 b. Calculation of contact stresses and wear 594 c. Selecting allowable contact stress 602 Determination of the coefficient of contact stress of transmissions which work for a long period of time with constant or slightly varying load magnitude 603 Determination of the coefficient of contact stress of transmissions under variaLle load and r.p.m. during the working cycle 606 9.16 Sliding velocity between engaged teeth. Friction between Card 10/ 12 Machine Elements 10. Belt Drives 10.1 General information on belt drives 10.2 Types of belt drives 10.3 Belts a. Materials for belts b. Belt fastenings 10.4 Design of flat belt 10.5 Determining geometrical length of a belt 10.6 Belt drive with pressure pulley 10.7 Design of belt for drive with pressure pulley 10.8 Pulleys for flat belts 10.9 V-belt drive a. General characteristics of V-belt drive b. Pulleys for V-belts c. Dimensioning V-belts 11. Friction Drives 11.1 Basic relationships for friction drives 11.2 Variable-speed drives AVAILABLE: Ljbrary of Congress Card 12/12 BUL/2108 663 663 664 667 669 670 683 685 0~ 68( 688 692 692 694 696 701 701 708 JO/bg 9-24-59 aor.e critical cu.:~.ents concerninf- ccllectirn --ul~arsk* t ar. ra rt i cr Gears and za zvInc zatsenvane i n1iii kilela (Uvlt-arinn SiAe Jlz~i-(!~nis f ~: "C. r c: v i e,,.i a t s i (, n a 1 G011, a I ooli; 3c,fiia, -1)7faria. mthh, Indcx of Last Euror~ean Accessic-ns 1,(:, Vol. 'C'. 10, Cot . 58 ANGEL~~, G.;,DANOV, G.; IM-DEWHEV, St.; NACIIEV, S1.; PARASKOV, Tsv. Studies on the friction of steol-iron couples. Godishnik mash elekt 10 no.3:251-258 161 (pubi.162). -AN-QELOV, G., inzh. Crystal-lization of white cast iron under the action of ultrasound. Maqhinostroene 2.1 no410:26-31 0 162. DZHIDZHEV, Iordanj inzh,; IVANOV9 Petkop inzh.;-ANGELOV, Georgip inzho The Dimitrovgrad bentonite aa binding material in inetal casting. Tekhnika Bulg 11 no,5:177-180 162. ANGELOV, Georgio insh.; SAVCV, Slavchop inzh. -- - -- -- - -------- 11 Monolithic metal obtained from steel shavings. Tekhaika Bulg 11 no.8t297-299 162. DZHIDZHEV, I.; IVANOV, P.; ANGELOV, G. The Kurdzhali bontonito an binding material. in w tal, cnsting. Mashinostroone 11 no.12:33-35 D 162. At"C'Effiv , Georgi St. Influence of ultrasound on the crystallization of white iron. Godishnik mash elekt 12 no. 3:33-~,2 162 [publ. 1631. ANGELOV, G.; DAEOV, G.; NEDUCITV, "It.; 1JA.1-9i:1'J.OV, 'j,,;v.; SI. Comparative studies of some ashestos frictional materials. GQdishnik mash elekt 12 no. 3:75-F2 102 [publ. 1631. fit.'GUOV, Geori,3 ) 11. t. I). :.'J- ~~n a I ~ "-If th-0 a c L icr; c 1, '. --. * ra Sc ~; n~ 1 C.'n :.- %,~ :,! , -* c ,*, proceS3 . ; 1, Ttjk1;r;,'k!l 1, 1,, 11 iio.6:1--h. I (.-. . 1. and 'c'lia. I t, ; : , - !~ 6 i , , ;, I." I I - I !. , ; , , .. , I . . : , , I I - . I . , . " 7 . : ~" .. I , , . . * ; , 7 i , ! - . I ~ ~ - - . i . . . , . ; : ~ ~ I , : ~ I " : - ; ,, ..,. . :- . , I , . . : , , , '. 1, . r. 1. .: , 'r!; :~,l I., ! - 1, - ,,, " ) -.I , . , , I . . . , . .q , ANGELOV, G.; DENEV, I.; STOIMENOV, Kr.1; MIJKHAREV, N.; BONFV, D. Di8tribution of hydatigenous tneniasis and cysticarcosis in northeastern Bulgaria. Izv khelmint lab BAN 9:91-96 164. ANGKLOV, G. A. , .1 A case of right subclavian artery as the last hranch of the aortic arch. Suvrem. med.. Soft& 7 no.9:95-99 1956. 1. Iz Katmdrata po anatomlia nR chovaka pri VMI - SoMa (Zav. katedrata: prof. D. Katsanov). (CARDIOVASCULAR DEnCTS, CONGENITAL right subclavian artPry as last branch of aortic arch) ANGELOV, Georgi,A.; MLNOLOV, Stefan A. Main objecto and their anatomic and topographic correlation in the 1OBBor omentum and porta. hepatis. Izv lnst morf BAN no*5:119-134 162, ANGUM, I. "Bulgarian shipping on the sea and its significance." p.36 (Transportno Delo, Vol. 10, no. 3. 1958, Sofiia, Bulgaria) Monthly Index of East. European Iccessions (EEAl) LC,, Vol. 7., 110- 8, August 1958 ANGETIOV, I.; TSAIEIV, 1% Using saturated Idne in asphalt-concrete paverents. p. 27. STY01TFILSTV0, 301'11k, Bulgaria, Vol. b, no. 3, Oct. X,onthly List of East Puropean Accessions (i~LAI) j,(;) Voi. 0y Nom iuj/i)59 Uncl. -ANGELOV, I. Use reinforced concrete products in the construction of atock buildings. Sill. bud. 12 no.8:10 Ag 162. (MIRA 15:9) 1. Predsedatell soveta Novoodesskoy mezhkolkhoznoy stroitellnoy organizatsil Nikolayevskoy oblasti. (Precast concrete construction) (Farm buildings) MALROVSKA, V.; ANGEWVpIv. Apropos of the affect of meteorological factors on theumatism. Suvr. med. 14 no.lO&2F-33 163. -r ANGELOV, lvan, Inzhq._, I Large-pareled dwelling buildings withtremoversal supporting walls on the mqLi axle. Stro:Ltelstvo 9 no.4:12-17 Jlkg 162. ANOMV, Iv. ANGkWV, Iv. First national conference of the dental societies. Stomatologiia, Sofia n0-3:131-136 1954. 1. N-k n& Stomatologichni otdol pri )INZSG (DNNTISTRY, in Bulgaria. conf.) ANGHLOV, Iv. Result of national survey of regional dental polyclinics. Stomatologiia, Sofia no.2:3-10 1955. Nach.Stomatol.otdel pri MSG. (DIRrISTRY, in Bulgaria. regional dent. polyclinics) KUZMANOV, A1.j A.NGELOV, Iv.1 TSVETANOV., 11. Economic efficiency of capital Inveatments in some chemical production sectors. Khim i industriia 34 no.5:191-196 162. y IA., ilzh . A radiu contrcller for Bhipn. itadin 11 telovi,-,ila 11 37~-3FO 162, . . 1 . . . .1.1 . I . .. . I I .ol, 'I Z , I"n 1"WT .1 .I IZCW=D AN.WLDV.p ~ ~ 1961 1963/ A Obazi8trY - reevnts I-VtLINOVSHA, V.; AINGELOV, Iv. 1-leteorotropism in rheumatism. Khidro i meleorolog 6 31-38 163. Al:r,--3!,CV OCd )Uallty 1,C)" "To '.or" c C'f c of P.,,, 7 SC s L of Eas :,"uropo Acc,~, ris !,o. 7, Jul- 1~' * IAI , F , % , , " !~- - , I . -I,.1 1- - - " ~ I - ! .. , ~ ., .: - ~ ~ , !"". , , -I ~ 1: - f! , . . '. ~ , :!.,I :,I , ~ . . . .li~ - _.i A , I - I , . - . . .. . .-. . %, *: ., .( (I ~ , . I . I I , i, I : . ",*., . - ! : - . 1~ , :. f - t I , 1. - , ~: ~ ~ ~1.; -.~ - . L. A:l'G.`LCV "To't,ard hir-h o~anda-,c!s lin sto:~,aloj(.,,.--iLcaj -zi -,t cc .--.. I . " . ~; t, 1 .111(). (3 ; ~ ;, 7 , 3, 1~521 Sofiya, A'~ulgar-La) I ul . ."u 3C': !:0',"11,- L.-1:3" Of 'Ea:-~~ - -roj-,aa , Ac,::esri,ns cl. .? 101. 2 Ilo. 7, July 1~1113, Un, ,U4`U^'EWVj 1- "Vegetative ':ybridism by ~chanrirw the ~~-'Iiite --.)f a FertilizcA :ic-rits w~Jth ~m Un- it - - .1. fertilize-i -~a,-lels L. j~. p. 71 (P,-L~JDA, Vol. 2, I.Io. .., - - 10 t~az;t rui,qp(!an / Vol. -4, Nlo-3 ~54 SO: Month List of Rumm-an accessions, Librai4y of Congress, 1.'arch -1953, Uncl. ANCIFLOV, L., Inzh. !,!i.-ignrian clectric-power systorr, In t 1 Elektroeiiergiia zio. 6:1-4 JO '64. 15 u Allmov, M. I "American television educates gangsters and murderers." p 1. (ium!,- 1IR'MrL Dy Vol. 8 t,,15, Aix. 1253, Bulgaria) SO: lonthly List of Fast Eliropean Accession,-, Vol. 2, 01, 1& rary of Ccnt:ress, August, 1954, Uncl. "' " A r ..,1, 1, . . Alt*clci; or "I T. . t . ','odorov i;!kl 1. )r1 ~ ~!. ~l ". '40. 1.-I, F.T, ~ , *! I It, 3ol';.,,-,., 'l,ol.. 6, no. '), 1,,,y l';-.-15. - : ':(-),;t'-ly of I-,,,;.-t ~11~-,-Ai.), 1.0, Vol- 14, n~-)- Lu, Uct- lY55, uncl. AN71"LOV, X. Damiges in the cable links of 35 Poduene Electric Substation. p. ELEF,TFCE1T.T,3IlA. Vol. 7, no. 9, Soflia, f~i]Farja. kilowatt. In thr Stalin Thermoelectric 1110'rit, 22. Sept. 10/56 I SOLT-CE: East European Accessions List, (EEAL) Libram of ConFress, Vol. 6, No. 1, January 1957 ANGELOV, M. IfElectric-power transmission of high voltage in Hungary." ELEKROENERGIIA, Sofiig, Bulgaria, Vol. 9, no. 10/11, Oct./Nov. 1958. Monthly List of East European Accessions Index (EEAI), The Library of Congress, Volume 8. No. 8, August 1959- Unclassified ANGELCV) M. IIAVgur for drilling holes for pipe grounding." ELFKTROENhRGIIA', Sofiia, Bulgaria, Vol. 10, no. L, Apr. 1959. J, .rIII Monthly list of East Europe Accessions (EEAI), LC, Vol. 8, No. 6, Jtt-n 59, Unclas in7.'I. for alstributing capital investments and artnual ex.- ponditure in a complex utilization of water. Flektroenerglia 15 no.4.7-9 Ap 164. ANIGEMV, Mulko, arkh. Making the front wal2s of the hou,-,6:7 frow, the time of the Bu3parian renaloriance. Godishnik Ti,,zh stroit inst 13:69-100 161 [publ. 1621 A', -eri:n,3nt For I roiicin Daqpl.~ Root-, Fon)3t Plant:-, ti~o Grolz- p1ruitin" 3ystn, i- ReFion of th,,-~ Chirpari Rat--~ For,-t r. (rCR3,!:C STOTA"311"JO, Vol. 10~ ::o. C~cl- 1'-)5,., Jof ly-,., ~ tal-ul, ia) ,unthl y 1"Ist 03' 'art wiropean I.,C, Vol. :'o. 611 J-x-.e~ Y)555, Uncl. ix, F~riovo vil2i--n inri,,)- ;3A --,mt of Unc volit.. v ol. 11, no. 5, .',tLy 1956 KIOU'll-i. ~TlliNu ., -1, .1"; -~ -L C I T-,'.Uj r, of i 1, t -~Iul i a SO: .-,sion, Vol. (1, ITO I . 3. 1957 POP017, L.; 17ANOFF. Tch.; ANGURLOFF, N.; PANAIOTOFF, Ir. kj\JC,,r--LONJ, N. 1b.agicides synthetiques. 1. Vaction antimycotique dee substances du type des phytohormones et des derives naphtalenlques /~ -subtitues. Dioklady Bo1g. skad. nauk 6 no.1:37-40 Jan-Kar 153. 1. Glinique do Dermatologie et do Venerologle de l'Academie de Medecine d'Itat V.Tchervenkoff a Sofia. Chaire do Chimis organique do 111cole polytechnique dIltat Stallue a Sofia. (FUNGICIDIS, naphthalene' deriv.) (NAPHTHALENIC. derivativea, fungicide eff.) BALAHANOV, Kr., prof.: ANGEWV, N. Results of the treatment of cutaneous tuberculosis with isonicotinic acid bydraside; preliminary report and results. Suvrem. med., Sofia 6 n0-12:33-41 1955. 1. Ix Katedrata po kozhni bolesti pri Vieshlia maditainski institut V. Chervankov-Softia (zav. katedrata: prof. L. Popov). (TUBERCULOSIS, CUTANEOUS, therapy. isoniazid. (Bul)) (NICOTINIC ACID ISOMERS, therapeutic use, isonlazid in cutaneous tuberc. (Bul)) BALABANOV, K.; ANGELOV, N. A case of verruca senill-9 degenerated into epithelioma. -Suvr. mod. 12 no.12:75-78 161. 1. Iz Katedrata po kozhni i venerichni bolesti pri VHI [Vissh meditsinski institut] - Sofiia (Rukov. na katedrata Prof. L. Popov). (WARTS) (SKIN NEOPLASMS) 0-T,'WV) N. 0- (~rl P rift le, III i 9 q T, 111ir!, ATIGLWV PIT. A syndrome with eruptions of the erythema exsudativizi multiforme type healed by small doses of potassim-i iodate. Dermato vener Sofia 1 no.3:1-5 1(2- 1. Iz Katetirata po kozhni i venericheski bolei;ti pri 'PI'1, Sofiia (rukovod, na katedrata prof. L. Yopov). BALABAPOV, Kr. ; AI:G]UOV, V.; BALABAFOV, V. South Am, erican (Brazilian) blasomycosiB, description of the Ist case in Balgaria. Suvr. med. (Softia) 16 no.1:23-27 165. 1. IMI, Sofia, Katedra po koz)-.ni i venericheski bolesti, ( T-ukovoditel: Kr. Dulalotrov). 11 Tnvrf-i~; ~ !i~,, thin It-c.v ur v! 10 .o~J.hl T C no. ANGELOV, P. Practical methods for balancing revolving parts of machinery. p. 20. (Tekhnika, Vol. 5, no. 6, Nov./Dec. 1956, Bulgaria) SO: Monthly List of East European Accessions (EEAL) LC, Vol. 6, no, 6, June 1957, Uncl. AIMFLOV, P. Eliminating a ddfect in the cor.9truction of a turbine. p. lF. ELF,KTF.OEI,:LT,GI3A. Vol. 7, no. 7, Ji:l,,- J~,56. SoMa, 1,ulgarip. SOVICE: East European Accessions L;st, (EEAL) Libram of CongresS, Vol. 6, 'No. 1, January 19517 tj H-4 BULGARIA Chemical Technol~gy. - Corrosion. Protection from Corrosion. Chemical Products and Their Application. Part 1, Abs Jour Referat. Zhurnal Kbimiya, No h, 1958, 11660. Author pe Anelov, Domuzov, M9 Popova, Inst Not given. Title Characteristic Case of "Alkaline Brittleness" in Boilers. Ori,- Pub Tekhnika uric.), 1957, 6, No 5, 13 - 15. Abstrrict A case of formation of cracks in consequence of inter- crystallite corrosion of the metal in riveted seams of drums of 1)1 atm. sectional water tube boilers of 5 tons per hour is described. Feedwater was softened with lineY soda and phosphate to a residual hardness of 0.04 mg-equ. per lit. Recently the boiler water had the alkalinity of 11 to 1b mp-equ. per lit Card 112 B'di'01111RIA Chemical Technology. - Corrosion. Protection from H-h Corrosion. Chemical Products and Their Application. Part 1. Abs Jour Referat. Zhurnal Khimiya, No 1j, 1958, n6ho. Abstract and contained 5 to 15 mg per lit Of P205; the dry residue was 4000 mg per lit, and the water contained 360 to 400 mg per lit of Na2SO4, 16.5 mr per lit of Si02) 500 mr per lit of chlorides, 300 to 400 mg per lit of nitrates, 300 to 500 mg per lit of NaOH and 140 to 200 mg per lit Of 1~1,12CO3- Corrosion took place at the relative alkalinity of the boiler water of 15.5% and 1,1003 content up to 60% of the total al- 1--alinity converted into NaOfl. The damaged parts of dnmis were cut out and corresponding patches were welded in instead. General regulations concerning the "alkaline brittleness" of the boiler metal are quoted. Recommendation concerning the checking of the boiler state are made; it is recorriended to use phosphate instead of soda for softeninr of wator, Or to use the scheme liming-Na-cationizing to decrease the NaOli content in boiler i-,,ater. Card 2/2 ANGEWV, P. Dynamic balancing of the rotors of two ttirbine groups. p. 18. 'Elektmenergiia, k Vol. 8, No. 1, Jan. 1957. Sofia, Bulgaria) SO: Monthly List of East European Accessions (LEAL) LC, Vol. 6, No. 8, Aug 2957. Uncl ANOI-TVI' r. "Accounting For The Working Days of the Cooperative Firm Brigade. 1-. 1-79. (FOOPER!.'rIVNO Z7-!FDIF) Vol. f6j, No. 5, May 1951, Saflyn, Bulgaria. SO; Monthly Li3t of East Euronean Accessions, L.C. Vol. 11, Nov. 1953, Uncl. AUGELOV, P. Apion (Omphalapion) rhodopen5is n. sp.$ a new spacies of Curculionidae in Bulgaria. Doklady BAN 15 no.2:19c,--202 1. Vorgologt von Akademiesitglied 1. Buresch (Buresh, 1.]. AWIEUIV, 1'. "ContrIbution to the ,;ttt(13 of' UIC filldl~ (111TU110 CUIT,~UOIIIL13C ill Ailgariall p. 519 (Izvestia) Vol. 7, no. 7, 1956. :ofia, AzIraria S,C): 11'.onthl.,, index. of Ldst ruropean AcceEsions (Ir-EU) LC, Vol. 7, no. 5, '-!a3 1958 p BULGAIiIA k-nor-al tknd Spocializod Zoolof~,Y. Irmuct, - P Systematic and Faunistic. fibs Jour Rof Zhur - Blol.) No 17, 1958, No 78205 .Lut I, or Angulov, Pavel At. 6~ It Inst Z 65~6, MaT-T-K-M-t-ute Bulgt rian AS T'Ltlo Contribution to the Study of tho i7ucvil Family (Curcullonidae) in Bulgaria. Tzv. Zool. in-t Blll&;. AIN, 1957, Kn. (Bul.g.; rus. Rur3(;., Gur.) Abstract None given c,-rd -.1/11 ANGELOV. Pavel Beet pests and the fight against them. Prir i znanie 13 no.6:4-6 ja 160. (EKAI :0:1) (Bee-,s) ANGELOV, P. At. Contribution to the study of the families Bruchelidae and Attelabidae (Coleoptera) in Bulgaria. Izv Zool inst BAN 10:367-371 361. (EEAI 10:9/10) (Beetles) ANGELOV, Pavel; KAWH9Vp Boris Amphibious Animals in the collections of the P2ovdiv Natural Museum, Prir i snanis 34 no.2:18-21 161. (EW 10:7) 1. Direktor na muzeia (for Angelov) (Amphibia) ANGELOV, P. Proboscises of the genus Curculio, injurious to our forest and fru-'t k trees, and fighting against them. ?riroda Bulg 11 no. 1:96-98 Ja-F 62. 1. Direktor na Prirodnonauchniia muzei v Plovdiv. ANGELOV. Pavel ---- -f-~ Parasitic and nonparasitic unicellular insects., and their importance. Prir i znanie 15 no,5tl7-20 My 162o 1. Direktor na Prirodonauchniia muzei v Plovdiv. AN-GEWVY Tp- - - Species of the family Anthrlbldue (Colooptorn) In PulgarJu,, 'Izv Zool ingt BAN no.13~237-141 '63. ARGELqV.,- Pq~p~ ~A. Musoums of natural science is a help to students. Biol, i khba 5 no.l.-51-54 163. 1. Direktor na prirodno nauchniia mizei v Plovdiv* .1 1 1.- I , I It, I ; :' ', '#~ 'j!!".-!.11 I j" ~ i, I- , . ~, (,, j!1i i -1 ngoe ts - _-i ' I " 1 . .' ; '~ , " I !, . , 1. . , ' ; t'll" -( "i I I f- -7-:' -:-' .. -" ." 1:11r...'l, . ." I :. ~ .- ; ~ ,!.[ I . I . . I , - ~ - (~' 11 . "t - .-, , , - -, ~ " o' - I Al.! ' ,, ;* `~ .. -j; - . t' ~\ V! (, ~ I . (-, ~/, , - . ANaunov, ;;. -. KOUTOUKDJIEV, L Undulant fever in human and brucella abortus in domestic animals In Bulgaria. C.rand.Bulgar. Akad.Nauk, Sofia. Sc.math.natur. 2 no.2-3: 53-56 149. (OLML 19:3) 1. Institute of Microbiolog7 of the Bulgarian Academy of Sciences. KullRmzltI741P K., MIGELW, S. Investipation of the rt-Lation of hman -m-bilant fever and bruccUoqlzm ln doinf!,AAc wd~rlu Ili Bulgwia, r~krob,, ln&,,.j, Wlac;o Vol- 1, 1950- P, 5-19 1. fplvr. st~ Ant'clcm, Scientific Director; Dr. IL, Kqpuad.-.hly-v--- Ilead9 I.A. c robl.olo,-,Jxrd Insti"'iite cX tho ThLlMrian Ac-ademy of 3cim~lm~) CTJ'T, 1~', 5, Nov,, l9r~n ITITIALKOV ANCIIM~*~', NMI. I..; I s 1'r, im 'A' ot h or fc, ml~ of rx, in yjIlit 1, lgr,), 21-41~ Investl,--ritlons of tho opecilic and !'!Ictor~&'ropllio cffc~t of tho rivino f I ery"A[Y~Llp a nntic (%~.Ium~ lzv,. :-Akrol) - Sorta., , Vol 1950, f "ki 1. CL":l' 19, -" NOV.-, 1950 ANIGELGII? ST. ir I'BrutseloznLn u zhivotnite 1 chove)(11. 0t St. Ancclo---Y . i Il. Fulu;--ifthlev. Sofiya, BulrarsXa r--.Icndemiia na naulicitc, 1951. * P. (Brucellonls in nnirfils I and T.~en. Illus.) SO: 77'st 7'urop--n, I . C. Vol 2, Eo 3-2, D~~c. ANGELOV, S. Q fever in man and its relation to rickettsial diseases 3n domestic animals, vith special reference to gonts. Izv. mikrob. inst., Sofia 2:3-28 1951 (CLML 21:3) 1. Prof. Doctor, Academician. 2. Director of the Institute of Microbiology of the Bulgarian Academy of Sciences.