SCIENTIFIC ABSTRACT OBUKHOVSKIY, Y.M. - OBVINTSEV, Y.S.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001237720018-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Sequence Number: 18
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

KOTKIN, A.H.; OBUKHOVSKIT, TA.M.; SHVARTZ, SA., redaktor; ANDREM, S.P.,
tekhnich"kly .-rL0.
[Kanual for inapectorm of the quality of coal for coking) Pam.'atka
inspektors po kachestvu uglet dlia koksovaniia. KKarlkov, Goa. nauch-
no-takhn. izd-vo lit-ry po chernoi i tavetnoi metallurgii. 1954.
190 P. (MLRA 8:1)
(Coal) (Coke)

jCjFjUiv,H OV-> Air) rL,M.
KOTKM. A.K.; OBUKHOTWSKI
LAZAUT, U.M., radaktor; SHAROPIN, T.D..
--te
r a d a k tPAW- r-mi E - chaskly redaktor
[Coal@ for coking and control of their quality] Ugli dlia koksovanila
i kontroll M kschestva. Komkwa. Goo. nauchno-tokhn. izd-vo lit-ry
yo chernoi I tovetnot moUllurgit. 1954. 228 p, NLRA 7:9)
(Goal) (Coke)

KOTKIN, A.M., inzhaner; OBUKHOVSKIY. Y&A., glaynyy inzhener kandidat
I .. I 1~
takhnichaskilch nauk. - ~-
Preliminary sampling of coking coal. Standaftizatells no.2:35-40 Kr-Ap '54.
NLRA 7:6)
1. Nachallnik inspektall "YushinskoksUoill (for Kotkin).
(Coal--Analysis)

KOTKIV, A.M.; OBUKROVSKff.Ta.M.; LWITSKIT. Ta.B., redaktor; WKOV.
N.A., reJW'f3FO:r1fflIRNffM-ffVA. Z.A.. tekhnichaskiy redaktor
(Standardizine tho quality of coal for cokino Usrednents
kachestva uglet dlia koksovantia. Moskva. Ugletakhizdat, 1955.
78 P. (Coke) (MLRA 8:10)

ARONOV, Samuil Grigorlyevicha BAUTIN, Ivan Grigorlyevich; VOLKOVA, Zoya
Andreyevna; VOLOSHIN, Lrkhtp Illich; VIROZUB, Yevgeniy Vladimirovich;
GARLY, Lev lzrailevich. DIDMO, Tiktor Tefimovich; ZASMAHA. Vast-
Uy Grigorlyevich; IYANOT, Pavel Alakeandrovi(zh. KUSTOV. Boris
IosifovIch [deceased]; KOTOV, Ivan Konstantinovich, KOTKZN. Aleksandr
Katveyevich; KOK&NOVSKIY, Kaksim Semenovich; LOYTHS. Viktor Abramovich,
KOROZ. Mikhail Takovlevich; NIKOIAYEV, Dmitriy Dmitriyevich. GBUKHOT-
,A&M Takov Mironovich; RODSHTEYN, Pavel Koiaeyevich; SAPOZHNIKOV.
Thkov Tudovioh, SM11011ANKO, Bergey Teftmovich; TOPORKOV, Vasilly
Yakoylevich; CHXRMNYKH Mikhail Sergeyevich; CHERKASSKAYA. Zefirl
Ionovna. SUVABTS, Semen Aronovichi SHICHMAN. Mikhail Takovlevich;
SHVARTS, Grigoriy Aleksandrovich; LIBERMAN. S.S., redaktor izdatell-
atva; ANDREYEV, S.P., tekhnicheakiy redaktor
[Producing blast furnace coke of uniform quality; a collection of
articles for the disammination of advanced practices] Poluchenis
domennogo koksa postolannogo icachostva; abornik statei po obmeau
peredovym opytom. Kharlkov. Goa.nauchno-tekha.izd-vo lit-ry po
chernol. I tsvetnoi metallurgii, 1956. 300 p. (MI3A 9:8)
(Coke industry)

- '', , ,1 -, / V .1 1, , ,.'~ I, ,I,. .A-
OBUKHOTSKIY. Yakov Hironovich; GZNSHTELI, U.N.. red.; YABLOHSKAYA,L.V.,
red.; KARASZV, A.I., takhn.red.
[Preparation of coal for coklngj Sostavlenle ugollnykh shikht
d11& koksovanita. Moskva, Gos.nauchno-tekhn.1zd-vo lit-r7 po
chernol t tovetaoi metallargii, 1957. 327 P. (MIRA 11:1)
(Coke industry)

26-1-30/42
AUTHOR: Obukhovskiy, Ya.M., Candidate of Technical Sciences
TITLE: The Quality of Coal Concentrate for Coking Must Be Improved.
(Uluchshit' kachestvo ugollnogo konteentrata dlya koksovaniya)
PERIODICAL: Standartizatsiya, # 1, Jan-Feb 1957, p 76-78 (USSR)
ABSTRACT: A survey of the present position and development with regard to
ash and water content in coal concentrate for coking is given,
with reference to concentrating plants and coke-chemical plants.
The importance of this subject is stressed. The standards
"r0CT 537-51" (for concentrate of the Donets Basin concentrat-
ing plants) and 'TOCT 6547-53" (for concentrate and products of
coal concentrating plants of the Ministry of Ferrous Metallurgy)
set the summer ash-content limit at 7 % and humidity-limit at
10 ~- for plants of the Ministry of Ferrous Metallurgy and 9 %
and 12.5 % respectively for installations of the Ministry of
Coal Mining. The winter humidity limit is 7 % for all coal
concentrating plants. These limits are based on the results of
extensive studies. It is known that higher humidity of coal
affects the fire bricks of coke ovens and that the duration of
Card 1/5 the coking process is shortened by 9 % when the humidity of

The Quality of Coal Concentrate for Coking Must Be Improved 28-1-30142
coal concentrate is reduced from 11.2 % to 6.1, %. it is also
known that coke ovens cannot work normally when the humidity
of coal is too high. Furthermore, wet coal freezes during
transport in winter. Yet, instead of extending the existing
flotation and drying sections or building new ones to meet the
mentioned -roCT" requirements, the ministries concerned are
now - after .4 and 5 years respectively - asking the Committee of
Standards to postpone the effective dates of the standards,
Only one of the three coal concentrating plants of the Ministry
of Ferrous Metallurgy of the Ukraine - the Chumakovo plant -
maintains the prescribed humidity limit. Concerning the ash
content, none of the plants adheres to the standard. The pause
of the rising humidity is the progressing mechanization of coal
mines which brings about the growing percentage of fine coal
grades (below 1 mm). This, in turn, results in higher quantity
of sediment in settling machines, which is concentrated by
flotation. In the end, the humidity of the coal entering the
ovens rises. The mean annual humidity figure between 1952 and
1953 rose at the following coke-chemical plants tot Dnepro-
petrovsk plant - 9.74 to 11 %; Makeyevka plant-9.45 to 10.65 %;
Voroshilovsk plant - 9.34 to 10.44 %; Gorlovka7plant - 9.1 to
Card 2/5 10-55 %. On some days, the humidity figure at those plants

The Quality of Coal Concentrate for Coking Must Be Improved 28-1-30142
reached 12-12.5%. Further increase can be expected. Accord-
ing to research institute data, a one per cent increase rf asn
content in blast furnaces consumes 1-0.8% limestone and
1.75-2.5% coke, and reduces the furnace output by 2.4-2.7%.
But concentration of coal is accompanied by losses of coal,
and the ash content figure of 7% has been found to be economic-
ally justified, since coal losses in concentrating to this ash
content are compensated for by the productivity of blast furn-
aces and economy of coke in melting of cast iron. But to keep
ash content down to 7% it is necessary not only to flotate all
sediment coal, but also the coal dust which at the present
time is being added to concentrate with 13% ash content. Yet,
flotation of dust would further increase humidity. For the
stated reasons, the dehydrating equipment of plants must be
fully utilized and new drying installations must be built, or
the existing ones expanded. The experience of the Chumakovo
plant with the high-productive drying section built a few years
ago has shown that it is possible to hold humidity to the
standard. The Ministry of Ferrous Metallurgy of the Ukraine
plans to build such drying sections at the Dnepropetrovsk,
Dnepraftemhinsk, Makeyevka, Yenakiyevo, Gorlovka, and Voro-
Card 3/5 shilovsk coke-chemical plants. The State Institute for Plan-

The quality of Coal Concentrate for Coking Must Be Improved 28-1-30142
ning of Coke-chemical Industrial Installations (Giprokoks) haa
been commissioned with the planning. This iastituts tried for
over two years to prove that the drying sections were im-
practical, but finally in May 1956, it completed the task.
All the planned drying installations could have been built in
1957-58, but only 6% of the total building costs have been as-
signed for 1957. In the Ukrainian coal mining industry, even
such plants which have the equipment to keep the concentrate
humidity down to 7% (Novo-Uzlovskaya) do not do it. At some
plants, flotation concentrate is being loaded with humidity of
18-24%. In order not to leave coke-chemical and metallurgical
plants without coal, the Inspection of the Ministry of Ferrous
Metallurgy (Yuzhinskoksugoll) was forced to submit for approval
the following winter humidity limits for 1956-57: Novo-Uzlov-
skaya and No 13-bis Sovetskaya - 7%; Bogurayevskaya - 7.5%;
Nikitovka No 4/5, Dzerzhinskaya, Dobrapollskaya, Krivorozh-
skaya, and Novo-Golubovskaya - 8.5%; Kallmiusskaya - 9%. Of
the 26 concentration plants of both ministries, which concent-
rate daily over 110,000 tons of coal for coking, only 5 are
working on a closed lurry-water cycle. The others require
daily about 50,000 Jwater and pollute rivers by their waste
Card 4/5 water. An estimated 1,700 tons of coking coal is lost daily

The Quality of Coal Concentrate for Coking Must Be Improved 28-1-50142
in this way. Tt is stressed that drying installations have to
be built in the near future, or ricme of the coking coai grade.,
wil I riot bo uvablo for ookine duo to it coraitlintly lncro4alriov
amount of fine coal and an inability of the concentrating
plants to process high quantities of fine coal. Eliminating
coal losses in waste water alone would result in an annual
gain of about 1 million tons of cc,king coal, which would be
enough to pay for the entire drying installations and for con-
verting concentrating plants to a closed slurry-water cycle.
AVAILABLE: Library of Congress
Card V5

AUTHOR: --Obukhovskiy, Ya.M. (Ukr91aVkoks). 524
TITIE: Organisati on of the control of the mechanical c)ro-()erties
Of Coke. (Organizatsiya kontr*a. mekhanicheskik'a
svoystv koksa. )
PERIODICAL: "Koks i Khimiya" (Coli-je and Chemist
1957, No. 4, pp. 23 - 27, (U.S.S.R7.
ABST.aACT: The influence of cokint c onditions on various types of
coal blends is discussed. It is proposed to introduce the
control of cokin~-- conditions on the basis of the volatile
content in coke fines produced durin, the drum test. It is
considered that the level of volatiles in the above fines
maY indicate if a change in cokf! properties has been caused
by cokin- conditions. There are 4 tables and 2 Russian
0
references.

68-6-5/19
AUTHOR: Obukhovskiy, Ya.M., Candidate of Technical Sciences.
TITLE: Blending of Coals for Coking. (Usreineniyougley dlya
koksovaniya)
PERIODICAL: Koks i Khimiya, 1957, No.6, pp. 13 - 15 (USSR)
ABSTRACT: Some comments on the previously published paper by P.A.
Baydalinov, Koks i Khimiya, 1957, No.2, are given. The thesis
of Baydalinov that a considerable averaging of the composition
of coal takes place during washing and subsequent processes of
preparation of coal charge for coking is criticised.
There are 3 Slavic references.
ASSOCIATION: Ukrglavkoks.
AVAILABLE: Library of Congress
Uard 1/1

"0V/68-58-12-2/25
AUTHOR: Obrukhovskiy Ya.M. (Candidate of Technical Science) and
r" 11Z ~ Z:",A., ~ -, -- -,
TITLE: Mataila-'- Ralark-,z- of Cckir-g Coal Charges (Material-nyy
balans. kok,,--D~,-aniya ugollnykh shik-lit)
PERIODICAL: Koks i MiimiYa, 1958, Nr 127 PP .5-7 (USSR)
ABSTRACT9 It is pointed ~,u+- j-
. Itat a material balan:!,a of the coking
proceass presents an important nethod of assessing process
-,ossp-
~ aLd in -~-eporting the outputs of
-,asking picauc:ts. Th3 mair- diffi-ulty in the preparation
cf su.,:. ~alartas is la~:k r,-" da*;a on ths amount of air
~,ra 4T-i.-:L) ffni"-a increasas the amoun", :,f gas produced, and
,;-qe Of py-.,cg,--rii,, water avolved during coking. It
is propo:3e~-' to ~3cj~ ,e.~t output of gas for drawn in air
:)n ,a~3is cf n:)ntent in the --sal eharga7 as
ganei~ally of -i-J'.---,:)gen ir. ~,,al is t..,ansferred into the
gas. F-2--, the ual,~.ilati,:,n Df th-A.
s %orreutlon the following
.F,c 1-m,.Ila 13 P--,, j P 0 s =- -~ ~'
VaiT- = (7,aas Ngas Ncaaj.- 1000) 1 3/ton of coal
-M
79-
Card 1/3 '-'a
Whers Va--i- -- amount of dr-own in air/ton of coal as charged
rig -,.-g-as - the yield of gas per ton
I

SOV/68-58-12-2/25
14'aterial Balan,;,,- of Coking Coal Charges
of eoal charged together with drawn in air, m3; Ngas -
nitrogen (-.:nt.9nIV in the gas, vol. %; 0.35 - coefficient
detelminir4-, the pr:Dporti:.n of nitrogen in coal trans-
ferred to aasi 25 .-. the w,aight of Im3 of nitrogen,
kg,- Nzoal nitrogen content of 3oal as charg..ad,
1000 - the weight of -.harge for which the material balance
is being caiciuiated, kgo. '?9 .- nitrogen 2ontent of air,
vol.%~ Thp yield ~~,f pyrogenic water can be calculated
on the basis of the viell established ratio of oxygen of
py-Loggnio wiat~.~r to oxygen of noal equals 0..55. The
yj.eld can be talculated from the following formula:
Wp,w. 0.55. Ocoal - 3-8
*7 1
wheie: Wp.w. the yield cf pyrogenic water on coal as
charged, Ocoal - oxygert con-tent of coal as charged,
18 - mz;lt~cular welght of wateri 16 - atomi,~ weight of
nxyqAr, Using above formula matv~;r_al balances for a
number of ~-Iaking works for 1957 were calculated (Table 2).
The works were divided into two groups with and without
Card 2/3 W-aSjj9r4eS.
Material balances for works without

SOV/68-58-12-2/25
Ylater~~.al Balan.-.e if Coking Coal Charges
washeries were mu!~h nlos-ir than for works with washerie5.
It is point"ad out that tha Latter works underestimate
coke y1elds, If c-oke yield,z-,, calculated on the basis of
a formula.
yield Volatile In goe.3. x 100 + a
100 - in coke
(Wtore a 100 volatile ~.n coal 1 100) are
-T -a 1 7-
7510 MTI.17 9 oW4
s ib,3 t I tu tad -c:, V-ia r9ported ct,,,ke yields then better
.)alar..,--s ,.;ar. -,-a ol-Ita-inid "Table -Q.
I ,k -
Th~~i-s a-, 3 tabl-)3 and 1~ raferences, all Soviet.
ASSOCIATIONs Dnepi---,-pat,,,ovsLr.,L-f matallurgic:heskiy Ustitut
Institutg)
Card 3/3

SOV/68-59-i-b/26
AUTHORS: Bruk, A.S., Doctor of Technical Sciences, Volkova, Z.A.,
Leybovich, R.Ye- I 0bUkhox-fikLy,-!&,2" Candidates of
Technical Sciences and Leytes, V.A.
TITLE: Physico-mechanical and Physico-chemicai Properties of
varrow-size Fractions of blast Furnace Coke (Fiziko-
mekhanicheskiye i fiziko-khimicheskiye svoystva uzkikh
klaasov domennogo koksa)
PERIODICAL: Koks i Khimiya, 1959, vr i, pp 21 - 24 (USSR)
ABSTRACT: Properties of size fractions of coke; above 80 mm,
80-60 mm) 60-40 mm. and 40-25 mm. were investigated.
Mechanio,al properties were tested by standard drum tests
(GOST 5953-51); -results are given in Table 1; coke
reactivity by reduction of carbon dioxide to monoxide
according to Ref 6; results - Table 2; the hardness of
the coke substance according to Ref ?; results - Table 3
and the degree of carbonisat-ion of the coke by measurements
of its electro-conductivity, according to Ref 8;
results - Table 4. It was found that the quality of blast-
furna.,e coke is determined by properties of its individual
fractions and is non-uniform, not only in respect of size
fractl6as but also in respect of other properties
r
Cardl/2 characterising these size fractions such as strength,

.-;0V/68 -- Q~ - ~ - -0/2 6
Physico-mer,hanicai and Physico-chemical Properties of INarrow-size
Fractions of Blast Furnace W-oke
hardness, reactivity and the degree of ca-rbonisation.
Differences in properties of the individual size fractions
of coke, while the quality of the coal blend remains con-
stant, are determined by thermal cond-JI--ions of coking.
The most uniform in res~)ect of all the properties tested
are size fractions 60-40 and 80-0'0 mm. Separation of
these most uniform fracticns may secure the supply of
blast furnaces with the mcst uniform fuel. There are
4 tables and 8 Soviet references.
ASSOCIATIONS: Dnepropetzovskiy metallj-rgicheskiy institut
(Dnepropetrovsk MetaLlurgical Institute)-, and
Gosplan of the Ukrainian SSR (V.A.. Leytes)
Card 212

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- - , : - - I

DMITRIY97, Hikhail Mikhaylovich; OBUKHOVIIXIT. Takov Kironovich; OSTROVSKIT,
A.L.. red.; TATCHER, H.H.""'i.!ed. : ROZENTSTEM. Ta.D.. red.izd-va;
KLEBM. X.R., takAn.red:
i
(Short manual for a coke chemist] Kratkii spravochnik koksokhiai-
ka. Hook7a. Gos.nauchno-tekhn.17,d-vo lit-ry po chernoi i tsvetnoi
metallurgii, 1960. 252 p. (HIRA 13:2)
(Coke industry--ganboook-3. manuals, etc.)

BEM A. S.; SKIT -. U.N.; VOLKOVA, Z.A.; BJUTSKIY. V.G.; ANTOMOV, A.7,;
S M ZKW'1621 A - 1 0
Iffect of bulk weight of coal clutr Fos on the mechanical properties
of coke. Koko t khin. no.11:20-25 60. (KIRA 13: 11)
1. Dnepropetrovakly setallurgichigskly Institut (for Bruk. Obukhov-
ekly, Volkova, Beletskly). 2. Tasinovskly kokockhimicheek-ly - -vod
(for Antonov, Shevchonko)o
(Coke)

DIDENKO, Viktor Yef imovich; DMITRIYEV, Mikhail Mikhaylovich; LEYTES, Viktor
Abramovich; OBUKHOVSKIY, Yakov Mixonovich; LIBERMAN, S.S., red. izd-
va; MDRKEV -,tQW.- -red-. - -
[organization of the coke industry) Organizataiia koksokhimichookogo
proizvodstva. Khar1kov, Goo. nauchno-tekhn. izd-vo lit-ry po chernoi
i tavetnoi metallurgii, 1961. 462 p. (MIRA 14-:10)
(Coke industry)

SHMCHBMG, B.I. I..MIROSHNICHFIIKD, A.M.; W)YSNMA, Kh.M.; KRIVOKONI# Tu.G.;
BRUX. A.S#; VOLKOVA, Z.A.1 GJ~D, o.p.; OBurfoulay. TO.M.
Investigation of the coals of the I khim.
no.1:12-17 161. (MMA 14- 1)
1. Ukrainskiy uglekhimicheskiy inutitut (for Shtromberg. Mirosh-
nichenko, Noyseyeva, Krivokon'). 2. Dnepropetrovsk17 ffetallur-
gicheskiy institut (for Bruk, Tolkova, Ge7d, Obukhovskiy).
(Lvov-Vol7n' Basin-Coal)

--OBUKHOVSKIY, YU.M.
Progress of technolog7 in the preFar-ation of coal for coking.
Koko i khim. no.4-&6-8 161. (MM~ 14 -.3)
1. Dnepropetrovskiy metallurgicheskiy institut.
(Coal preparation)

BRUKI A.S.;..94UKHOVSKII, Ya.M.,- BELETSKIY, V.G.; IEYBOVICH, R.Ye.;
UIESHOVY P.ta.; GOLUBCHIK, A.L.; SITALO, M.V.; EYDELIMAN, A.Ye.
Improving the stability of coke quality at the Zaporozhlye
By-Product Coke plant. Koko I khim. no.16:10-12 161.
(MIRA 15:2)
1. Dnepropetrovskiy metallurgicheakiy institut (for Bruk,
Obukhovskiy.. Beletskiy,, Leytovich). 2. Zaporozhakiy koksokhimi-
cheskiy zavod (for Ku2eahov, Golubchik, Sitalo,, Eydellman)
'(Zapcrozhlye-Coke)

OBUKHOVSKIY, Ya.M., doktor tekhn. nauk
Construction of an experimental bin type blending station for
the preparation of the charge in the Avdeev Coke Chemicals
Plant. Koks i khim. no.7.13-15 163. (MIRA 16:8)
1. Dne opetrovskiy metal-Lirgicheakiy institut.
rDnepropetrovsk Province-Coking plants)

GOTLIB, A.D.; BRUK, A.S.; OBUKHOVSKH, Ya.M.; VOLOVIK, G.A.
Coke quality and the new technology of blast furnace
smelting. Koks i khim. no.1:26-30 164. (MIRA 17:2)
1. Dnepropetrovskiy metallurgicheakiy institut.

OBUKHOVSKITF Ya.M.1 GOLODBERG, P.Tmej PODBEWSKAYAO Ye,F,
t' - 1- ~- , -- - ,,
In-stigating highly metamorphized Kuznetsk Basin coal in order
to define thin and low coking coals. Ugoll 40 no.3s66-69 Mr 165.
(MIRA 1SS4)
1, Dnepropetrovokiy metallurg!cheskiy institut (for Obukhovskiy,
Golldberg). 2# Kuznetskiy nau0no-issladovatellskiy i proy,%ktno-
konstruktorskiy institut ugloobogashcheniya, (for Pbdbellsk4ya).

OBUKHOVIKrY. Ya.M., doktor tekhn. nAuk-, rZVTT, V.L., kand. ts-khn. nmijk~
GOLI TTWM--7.Y&.
F
Using transition lann coals fr making -)1ast furnace crke. ~*t,
i gornorild. prom. no.5t42-44 33-0 164. (9IRA 14t7)

7
T
4.6-28 55 LSOI -.06(497. 1)
Obulien. A.. ptehleadma dooptifte meteofetog1je na podrullu FNR jygoslavlJo.
[Pmbletus a( synoptic awteovo(ogy its Yugoslavi3.1 Vagoilavits. flidrumeteorafolka Sildba.
',r Mindrmdearddliti GlasteA, Aug. 1948. In Croatian. DWR-1t to pointed atit
that sycfw* elements and dyttamic phenomena ever Vugostavia are among the moA complex
4
In Europe. Tk tack In coordination of metearotcgical wrvices is considered to have been the
main obstack In the way ofefficiency in the past. It ishopLd that the reorganizationof the
hydrometeorological Fer#ice will remedy this situation. Resolutions passed by a Conference
held it% April 1948 under the c1takutatufilp of the director of the HYdrpsnet=W&
-j of Yu&fAkvfa am dhcu"W. They prov(de for practical, thearct
ical and technical P tog In
itt Confuticibn with the S-year plan. Simbifa Ifeudings
A
111WRIN fl~rmw 72. go j 11 wAftecaka S. HydmmaWora1*ca1 services 4. Y*ga&vfiL

4we -
3.11-78 #y ( Vf 7.
Obuljon, A. 0 probleau dugor0cath prognosa bramena. (On the problenia of'
loq"r"O forecasting. )Yugoslavia. Ridrometeorolosks. Slusba, Hidrowtoorolook
Glasnik, 3.80-85, 1950. In Groatian. VW86- In discussing objectives and method
of long range rorecastii,g the author sum up %is experience at the synoptic
division of the Yugoslavian Hydrometacrological Service. It has been sttempoed
to prepare 5-and 10-day forecaz;,s of' te"rature wA precipitation and also
seasonal and anr. al forecasts vith emphasis on the harvesting and planting
seasons. The method usied was mainly based on the extrapolation of &h4
general synoptic situation, since the vast statistical material on the synoptic
situaLlon, since the vast statistical material on the synoptic elements a
available for the Northam Hemisphere has not yet been satisfactorily evaluated
in respect to Yugoslavia, forecasting program. Subject Headingas 1. Ung
range forecasting 2. Agro-mateorological forecasting 3. Yugoslavia. G.T.

'N' 4
~bt rologlima -Abet,
ftilren.An CIv*odisnj*. 94" a nx4imkr4j*Vi_ CTftCdmu%fiIt4,(qIQ-(4,VuV,
I4a lqft,460.
1NU 4 Hims, S via.] SrPtkQ Gengrafsko Drifikho, Belki46, Chimik, 30OW-76,
Slimi"ar 1953, 'is Cmitian; French sumarlary 0', 76, 1 DLC-Data Gir Alay. June, July aW Aut., (950 fAr 9
H4)ptiC ItAtfM4 in 'ed most a the titmmg had