SCIENTIFIC ABSTRACT DAVIDSOHN, H., M.D. - DAVIDSON, VENIAMIN YEVGENYEVICH

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000509810013-4
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: July 28, 2000
• Sequence Number: 13
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

Ii! ACOrSSION NR: AP4042000
ngmuir, Larmor, and probe frequencies-, respeepively. The behavior of resonance
;~probos was Investigated exporimentally'. in"hiilium andair plasmas at pressures from
0.03 to 0.1 mm Hg and magnetic fieldirup to 4 kPo. The pladmav~ were excited in a
cubical glass container by. a 50 magacycle/see electric field,,the #Lvailablo power
iof which was 300 W. The pr6bes.wero similar to,,~hose employed,by Jffung and
(loc.cit.) and were made fr;i:),m ldhgtha.of high frequency coaxiqLl line..The exciting
!;!and detecting probes were I .ocated.near the centRr'of the containeri,"d:wo" i9epara-!
tied by- 0.5 to 1.5 cm. The probe frequency ~vaal 'Varied from gacycles/
200 to 1000 me
]:!/sec. Resonande probe measurements in the ~bsbn a Of a magnetic fileld were compaked,
;with- measurements performed.by the method'of G.9chulz and S.Brown ~(Phys.Rev..98,1642,'.
1955), and satisfactory agr~eement wis~f6und. .14 the presence of the ma
~i - jaetic field,!
lathe probe frequency was held constant.and the amplitude ofthe probe oscillations
liwas observed with an oscillosco '.as,.a function of the electrQn concentration, (7h
pe
electron concentration was obtain'
ed.1rom tbb power absorbed by the plasma from tho
~exciting field.) The predicted redon'ances were observed at the predioted.places. Asr:*
the magnatic field increased the iAngmuir " resonance (V = 1) Proadoned -, was' replac- I - -
ed by.a plateau having several small: peakh, and finally disappeared entirely., Al-~.
--though there are noise prpblems, band: the method' cannot -be used when the collision
frequency is as great as the probe f.requency, ~t is c6nolucked f',that -ithe.. resonance.
-ard
51

C.ONS-.CAjj'-oLiiDIS, A.,
C., LID;
'ox
Gil., Pro, RADU, XecimiciX-1-
DAVI DSO--li. -H,
3 -an PeoPle's
04- an - :Dor pro-----ction 0, tl,.e Rwan.6
Ost (Institatul do 'giona i protectia mmuncii
Ropj~)Iic in .3uGhD-r
(for all)
al din BucureSti)
BU6. No 4, j-aj-jk-cg 63, pp 309-314
in 4 of '~joxljmen due to Lo cal
Z-0 Or9tulism
c ional Changes
L co to the 1) oblp -,n early diagnosis
_m
r
V:~brations- It (With 'r0"
of tile same.)

EXCERPTA MICA Sec 15 'Vol. 11/S Chest Aug 8
'D"'W17637_S"TWP0f__THE DYNAMICS OF BRONCHIAL TI3 - Etude sur la dynamique.
de la tuberculose bronchique - DavL-drohn S. , Eskenasy Y.
Gheorghiu T. , Glaubes M. _,Rodescu M. and Tatomir A.
Inst, de Rech, sur la Tubere, do RoUmanie, Sect, de Laryngo-Bronchol.,
Bucarest - EIRONCHES (Paris) 1957, 7/3 (333-340) Graphs I
This work refers exclusively to bronchoscopy of the large bronchi In the course of
2 periods, the first of which preceded the large-scale spread of antibiotics. In
5,796 patients examined, brolichinl lesions were found in 74.2570 of the cases in
1949 and 1950 (first period), in 63.5% in 1951 and 1952, and in 5276 of the cases in
1953 and 1954. The improvement Is undoubtedly due to a wider use of antibiotics
and an earlier detection. Congestive inflammatory lesions occurred in one-third
of the pathological cases, and this proportion has not been affected by the arrival
of the antibiotics. It to believed. that these lesions, far from being common and
lacking importance, are probably due to pauetbacillary infections provoking very
special foci (atypical, incomplete follicles). Hypersecretions were observed in 2,
varying percentage of cases In the course of the 3 periods considered: from 2.6%
It rose to 17.9% to fall again to 5.4%. Infiltrative lesions often accompanied by
small erosions, granulations and haemorrhages were found in half of the cases in
the course of the first period, the percentage being maintained at approximately
36.8 afterwards. Ulcerative lesions developed in 11.876 of the cases in the course
of the first period; 1his figure fell successively to 6.8414 and then to 3.3%. This
fall is certainly the result of the specific treatment. Cicatricial stenosis was a
phenomenon which was still rare in the first period: 1.9116; its incidence was seen
to Increase to 2.8% in the course of the! second period and, In the last period, it
2: reached a percentage of 4.2. The core of stenosis is directly attributable to the
action of antibiotics administered'by the general route. Local treatment, an the
other hand, produced cure of lesto ins, without stenosis in the majority of the cases.
As regards gangliobronchial fistulae, ~Which are not always specific of tb, these
were diagnosed more frequently in the course of the last period (4.8% of the cases)
than in the beginning of the study., There is no special correlation between age.
incidence and ikppearance of the broikehial lesions.

EXCERPTA NEDICA Sea 15 Vol 121!j Chest Diseases May 59
1105. CONSIDERATIONS ON IIAEMOPTYSIS OF BRONCIIIAL ORIGIN. IIAEMO-
11TYS67 IN PATIENTS WITH NOICNIAL CUMT PICTURES - Cmisidt-rationd
sur les h6moptysies d'origine bronchique. Lea h6moptysiem h image thora-
cique normale - Davidsohn S. . B ri I I A. , Eskenasy Y. , G Lau-
-Inst. de Tuberc., Bucarest - BRONCIIES
bes M. and Rid cc R1.
1958, 8/3 (266-274)
Among 498 patients. 701,6 of whom were between 20 and 40 yr. old. 190 had no
bronchoscopical abnormalities, and 308 (over 60%) had. Non-specific inflammation
was observed in 50 patients. branchiectanies (at bronchography) without inflam-
mation In 21. non-specific bronchitis in 13. occupational bronchitis in 7. Specific
bronchitis was seen in 187 cases (6076 of all bronchitis cases). and there were 15
bronchial turnours. 7 of which were benign. A few patients showed disturbances
of blood coagulation, Kromsigt - Emmen (XV, 6. 11)

30--58-4
AUTHOR: Davidson, A_t~ -25/44
rlent~
TITLE: Cur i Objeetives .of ZoVidt Sp -,alifsts.~.on(Afri~~:-(Aktda,3.!nyye
zadachi sovetskikh afrikanistov).
Transactions of the Coordination Conference at the
Institute for Orientalisrit (Koordinatsionnoye soveshchaniye
v institute vostokovedeniya)
PERIODICAL: Vestnik Akademii Nauk SSSR, 1958, Nr 4,
pp. 109-Ilo (USSR)
ABSTRACT: This confeTence took place on February 13, and was the
second coo=dination conference of Africa explorers of
the AS USSR. In it took part: representatives of the
Institutes for Orientalism, Ethnography, International
Economy and International Relations, as well as those
of the Moscow University and of pedagogic institutes.
Ye. M. Zhukov, Academic Secretary of the Department for
Historical Sciences, Corresponding Member of the AS USSR,
reported on the decisions of the Conference of Solidarity
of Asian and African Countries in Cairo which he called
Card 1/3 a fight against colonialism. He further DOinted out the

Carkent, M46ctives of.Soviei; Specialists on Africa 3o-58-4-25/44
Transactions of the Coordination Conference at
the Institute for Orientalism
sympathy of these peoples for the Soviet Union and under=
lined the necessity of the further development of Soviet
exploration of Africa. S. R. Smirnov (Institute for Ethno-
graphy) was of opinion that the Soviet scientists should
draw direct consequences from the decisions of the Cairo
conference and the text books should be checked with regard
to the peoples of Africa and Asia. He spoke in favor of a
society of all explorers of Africa. V. B. Lutskiy raised
the problem of the participation of some Soviet scientists
in the creation of an historical-geographical encyclopedia
of Asia and Africa as suggested by the Cairo conference.
D. A. Oltderogge (Institute for Ethnography) spoke in fa.
vor of the t,eaching of 3 African languages at Soviet
schools. A. Z. Zusmanovich (Institute for Orientalism)
reported on the importance of the formation of a workers'
class in African countries. L. D. Yablochkov (Institute
for Ethnography), N. S. Lutskaya (Institute for Orientalism)
and M. V. Rayt (Institute for Ethnography) made a number
Card 2/3 of suggestions for better coordination of the work of

Curient Objectives df.Bovlet Specialistm.on. Africa 30-58 -4-25/44
Transactions of the Coordination Conference at
the Institute for Orientalism.
Soviet explorers of Africa. The chairman of the conference
I. I. Potekhin, stated-that the works of Soviet scientists
will find their way to African readers. He underlined that
it must be the aim of Soviet explorers to support the peoples
of Africa in their fight against colonialism. The conference
decided to fouLnd an All-Union Society for Explorers of Afri-
ca and to publish a special periodical. It was suggested to
introduce into the teaching programs of historical, econo.
mic and philological faculties courses on the history, the
economy and the literature of African peoples. At Moscow
University a a -pecial chair for African exploration is to
be founded. Also a combined expedition for the exploration
od African countries with representatives of classical
and natural sciences taking part in it was suggested.
1. InteUei~tual cooperatlon--Africa 2. Inte1lectual
Card 3/3 cooperation-US"M

DAVIDSOINI, A. G.
36653. Vintovoy Trubogib. Laterialy Po Kormunal. 10hozz-vu, Sb. ~'. c. 31-7
SO: Letopis, Zhurnalfivkh Stateu. Vol. 50, I-loskva, 1949

DAVIDSONt A 0 - DATLINI S.V.; KIRICHENKO,, G.A.j KOROTKOVAt Ye.N.;
KRAVCIWKO, D.V.; ORLOVA, A.S.; ADADUROVA, A.A.; ARKADIYEV,
V.G.; BARDINAv Yu.Ya.j EDDYANSKIYj V.L.j BONDAREVp S.N.j
GLAZACHEVy P.V.j DAVYDOV'At B.A.; IVANOV,, V.N.; KAMSHINA.,
V.7a.; WXOTM-11p L.P.; LANDA,, R.G.; LEVITSKAYAj 0.0.1 LIFETSp
Yu.G.; LOGINOVA, V.P.; CNANj, B.S.; PEGUEM9 A.M.; PXXHTUNOVj
N.V.; TOKAREVAp Z.I.; HUDOLEY, V.F.; MILOVANOVI I.V., red.;
IfIXABLYAN, E., red.; 11WHINO R., red.; S-VANIDZE, X., red.;
KWHOVAi Twg."khk. r6A.
[Africi today; concise reference book on politics and economic
conditiono)'Afrika segodnia; kratkii politiko-ekonomichookii
spravoohnik. MosWa., Gos izd-vo poUt. lit-ry, 1962. 326 p.
?Afrioa-Politi Cs)
(Afrioa-Economic conditions)

1 11 V,
Ian.

DAVIDSON A.11,
Advantage of using oxygen- enriched &ir for reverberatory melting.
Izv.vya.ucheb.zav-j tavet.met- 3 no.2sl32-134 160. OURA J-5--4)
1. Sevorokavk9-zskiy gornometeUurgichaskly institut,, k&Cedra
obahchey metaUurgI.I.
(Smelting kurnaees) (Qrygew-Industrial apoleations)

JIM taneous. J31 roceBises
I~ce
~jh
Pub. 103

U Ora-.,
A
'th'
'd
'E-' kiments:.o ~g 'di'
x1pe &
ng:
0 gr,,n.
,
,
,
~fani ins-tr. 117; U_'Lll): -~Nov 1954-

1'66.irabt bi#g -g; tion of lA'gh peed, ~I
Descri I~i s own px s! 3,ined during the.,opera -8
,perience-
Ain.g Mac u
grin hines:l:he author.liAs the:nixnerous unsolved problems which*

hin e h hi
di th~ hAroductionoUsuc mac ines': The lack of valuable. guiding
the mafin hi d nces ih'the intro-
literature materiat-is:consideircl of n ra

~hiniua lz~th's Onl afte th I
duction imination
of high~spee metal~rna e r. e e
y
of these'and many -other deficiencies. will a wide scale introduction of high-
'
;

s
h olndust be 0
; drawings.
d mac ines in
me liossible. Table
speed g. in ing _t r
I n'stitution; i
a

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iubmitte~d: ~q

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------------------------
Cat egory : UWR/Atomic and Molecular PkqsIcs - Heat D-4
Abs Jour : Ref Zhur - Fizikaj, No 2, 1957 No 39T2
Author ;,Davidson, A.M.
Title : Determination of the Mean Temperature of Bodies in Heating and Cooling
Orig Pub : Tr. Severo-Kavkazsk. gorno-metallurg.,in-ta: 1956, VYI?. 13, 94-103
Abstract No abstract
Card 1/1

DAVIDSON,, A. X.-
%ruaft
Optimum parameters for shaft furnaces tieing used in noriferrous
m9tal.Indu9trIq9j,~ TSTet- not. 29 no-10:31~-34 0 156. (MMA 9112)
(Nonferrous metal Industries)
(Metallurgical furnaces)

137-58-6-11396
Translation from: Referativnyy zhurnal,- Metallurgiya, 1958, Nr 6, p 21 (USSR)
AUTHOR: Davidson, A.M.
TITLE- Determining the Temperature Diffilsivity and Thermal Conductiv-
ity of Aluminum Hydroxide (Opredeleniye koeffitsiyentov tempera-
turoprovodnosti i tepldprovodnosti gidrookisi alyuminiya)
PERIODICAL: Sb. nauchn. tr. Severo-Kavkazsk. gorno-metallurg. in-t,
1957, Nr 14, pp 209-215
ABSTRACT: The investigation was conducted by constant-rate heating of
Al(OH)3 made from highest-grade Al,desidcated to iL moisture
content of 0.94 and 11.77o. Graphs were obtained for the re-
lationship between the temperature diffusivity and thermal con-
ductivity of Al(OH)3 and the temperature; equations for the cal-
culation of these factors in the 200-9500C temperature interval
are set up making it possible to calculate with satisfactory ac-
curacy the distribution of temperatures within a layer of
AI(OH)3 in a furnace.
1. Aluminum hydroxide--Thermodynamic properties L.P.
Card 1/1 2. All-meiinur. hydroxide--Temperature factors

137-58-4-6498
Translation from: Referativnyy zhurnal, Metallurgiya, 1958, Nr 4, p 23 (USSR)
AUTHORS: Davidson, A.M., Kuznetsov, N.N.
TITLE: -An7ay-sis-of Rotary Tubular Furnaces (0 raschete trubchatykh
vrashchayushchikhsya pechey)
PERIODICAL: Sb. nauchn. tr. Severo-Kavkazsk. gorno-metallurg.in-t,
1957, Nr 14, pp 216-223
ABSTRACT: Methods of calculating heat exchange in rotary tubular
furnaces are set forth. Equations for the determination of in-
side diameter, the dimensions of the protected and eXpOsed
surfaces of the lining, and of the substance being treated, and
the heat exchange between the substance and the gas flow, are
developed. Formulas are presented for calculating the length
of a tubular furnace that will yield a given output; instructions
on determining the optimum diameter are given.
Ya. K.
1. Furnaces--Characteristics 2. Furnaces-Operation
Card 1/1

SO V/137- 59-1-81
Translation from: Referativnyy zhurnal. Metallurgiya, 1959, Nr 1, F) I I (USSR)
AUTHOR: Davidson, A. M.
TITLE: Optimum Thickness of Lining and Water Cooling of Rota,,-y Tubular
Kilns (Optirnal' naya tolshchina futerovki i vodyandye oklilazhdeiiiye
trubchatykh yrashchayushchiMsya pechey)
PERIODICAL: Tr. Sev.-Kavkazsk. gorno -meta Hurg. in-ta, 1957, Nr 15, p~?
186-202
ABSTRACT: A detailed exposition is made of the new technically economical
method developed by the author for determining of the optimum
thickness of the lining of rotary tubular kilns (RTK); data are sup-
plied on the expediency of water cooling. The parameters for RTK
lining obtained are consistent with the dimensions calculated in
terms of their diameter: Water cooling is advisable for increasing
the service life of the lining after adapting special steel housing of
RTK and maintaining precautionary measures; however, this
causes a decrease in the capacity of the furnaces.
Ya. K.
Card 1/1

'777 p; - --.! -777
. 777~77,
p. I -

T-

. . . . . . . . . .

SOV/137-58-10-20444
Translation from: Referativnyy zhurnal, Metallurgiya, 1958, Nr 10, p 14 (USSR)
AUTHOR: Davidson, A. M.
TITLE: Formation of Chilled Residue in Rotary Tubular Furnaces
(Nastyleobrazovaniye v trubchatykh vrashchayushchikhsya
pechakh)
PERIODICAL: Izv. vyssh. uchebn. zavedeniy. Tsvetn. metallurgiya, 1958,
Nr 1, pp 120- 127
ABSTRACT: The results of a study of the effect upon formation of chilled
residue in rotary furnaces of the nature of particle motion, the
duration of particle retention upon exposed surfaces, tempera-
ture and length of contact between surfaces and lining, all of
which depend upon the diameter and length of the furnace, the
rpm, and the slope of the furnace axis, are examined. The
investigations are conducted both on laboratory models and in
industrial furnaces. The relationships discovered make
possible a tentative estimate of possible chilled residue forma-
tion in sintering furnaces, and determination of the optimum
dimensions and conditions of operation of these furnaces. The
Card 1/2 method developed makes it possible to determine the conditions

S SOV/1 37-58-10-20444
Formation of Chilled Residue in Rotary Tubular Furnaces
of chilled residue formation in tubular furnaces for any desired, production
process. r
1. Furnaces--Deposits I B. L,
k
1.-I Card 2/2

DOIDSON, A M.
Methods of seleotipg best p"Aliatern, of pyrometallurgical eqa'lliment
fmnonferrous mstall=S7. Ixv*'.vysp'Uchsb. zvvG-*, tvret--ast, no,2t
124-129 0' il'W,
1. SeverokiLvkazsld:O'cornowtallurcia*Lhaskiy institut. ]kfaam ob-
shchey metallurgil,,.
(Nonferrous metals-Ketallurgy) (Metallvrgical furnacemY

AUTHOR: David. o SOV/149-58-4-18/26
TITIR: --Oalculation of Heat Transfer in Reverberatory
Fur~albes-f-Or Copper Smelting (Raschet toploobmana v
?tra*zhatelInykh pechakh meduoy plavki)
ARIODICAL:jzVesttyi Vysshikh Uchabnykh Zavedeniy Tsvetnaya
AetallUVA-7 958l Nr 49 pp 124-135 (6c;SR)
ABSTRACT: Two mothodb of calculation of heat tranisfer in
;*verberito furnaces - one developed in 1948 by
Rifal9vich: 0) 9 the ~ other proposed' I~y Diomidovskiy
(Ri&f TQ'iu~ 1956, - are compared and their merits and
demerits diic4ssed; With the aid of the Vlasov wthod
of 07) txsioL~ oi q6ppiliLtion of 'ene~cgetie balances and
Cal MI IAtib4 ` 9f 'thi ~* I%ffi'votive flow", Rafalovich
derived 4 aet.of equations (Eq.1-4) in whicli the +.otal
quanVity of absorbed by the melt and the
charge in t4G4fit=(a4c94 shom on Agel, heat radLiated.
from tho roof, 'from the me It and from the
charge (Q,,) were expressed in terma of the r~L4iation
Card 1/5 00~ffi ien-t (a), degree of blackaoss (6), degree of

SOV/149-58-4-18/26
Calculation of Heat Transfer in Reverberatory Furnaces for
Copper Smelting
anthor, the method developed Iry Rafalovich is more
accurate than that proposed by Dioztlov in spite
of the fact that Rafalovich's formula for" is less
correct than that used by Diom:LdovskiY. On. fh~e other
hand, the fiml formulas obtained by Rafalovich are
somewhat cumbersome, an arbitrary value of the
coefficient of non-uniformity of the temperature
has been used and the beat exchange between the b-nks
of the charge has not teen allowed for in compilation
of equation (1). The last factor$ %alich is palticularl-Y
important, has been.taken into account in the set of
four equations (EdI.10--13) derived by the present author.
Owing to a number of simplifying asEumptions made in
deriving these equations there is no need to obtain a
~neral- solution. In any particul= Case, the total
h at absorbed by the malt and the charge,, and th~
values of Qcl, and QLuean be determined separately
ecpiationst,
11, 12 and 13 gi-,ring a set of
Card 3/5 from

SOV/149-58-4-18/26
Calculation of Heat Transfer in Reverberatory Funiaces for
Copper Smelting
assumptions mad* by the latter worker Jn derivation
of his forma-las lead to an error, the magaitudo of
which increases -with increasirg blackness of the
furnace gasas.- (In one instance the value of (q)
obtained by this method was approx 9% higher than that
calculated from. Rafalovich's formulae modified by the
p;esent Author.) There are 2 tables~ I figure and
12 Soviet references*
ASSOCIATION: Severokavkazaki-y Gornometallurgicheskiy Institut.
Kafedra Obshchey.Motallurgii (No3th Caucasian Mining-
Metallurgical Institute, Chair for General Metallurgy)
SUBMITTED: 2nd June 1958.
Card 5/5

AUTHOR: Davidso SOV/149-58-6-11/19
TITLE: The Optimum Parameters of Reverberatory FUMILces for
Copper Smelting (Optimallnyye parametry otra2;hatellnykh
pechey mednoy plavki)
PM ODICAL: Izvestiya VYSBbikh Uchebnykh Zavedenty Tsvetnaya
Metallurgiya, 1958, Nr 6, pp 92 - 107 ~USSR)
ABSTRACT: The optimum parameters of reverberatory smelting are
defined by the author as those values, of the variable a
of the furnace design end of the smelting process itself
which will secure the lowest costs per unit of the produced
material. The problem of selection of the optimum com-
position of the charge, the matte and the slag has been
already solved and in the present article a method is
described of determining the optimilm values of other
parameters such as the length and the width of the-smelting
zone, the temperature of the gases, their velocity, etc.
The author analyses the production costs of copper
smelting in a reverberatory furnace and, having taken
into consideration all the relevant characteristics of the
process, arrives at the conclusion that the only factors
Cardl/18 that need to be taken into account in determiming the

SOIr/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
optimum values of the parameters under considexation are
the cost of the fuel and the value of copper and other
metals lost in the form of dust carried away by the waste
gases. Passing onto the calculation of the.constructional
parameters of a reverberatory furnace, the author questions
the validity of the formulae proposed by Diomidovskiy
(Ref 1) and shows that in order to determine the optimum
width of the furnace it is necessary to consider a set of
three equations. 1) An equation relating the quantity
of heat Z, produced by the burnt fuel with the
recommended value of heat intensity in the smelting zone
and its volume:
1000 X P
QH FL
qpek
where F - the free cross-,section area of the furnace
(in m2), L, the length of the smelting zone (in m),
Card?-/.*L8

SOV/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
X - fuel consumption (in t/h), A - heat intensity in
the smelting zone (in kcal M73hr
2) An equation describing the relationship between the
capacity of the furnace, the heat transfer process and
the properties of the charge:
G1 0. 9 (2)
W~ere G the capacity of the furnRce (in,tons of
charge per hour), QI:L -the quantity of heat imparted
to the charge and the molten bath per unit length of the
furnace (in kcal m-1 hr -1 ), 0.9 - a coefficient accounting
for the fact that 10% of heat is not utilised (ReJ.' 1),
j - heat required to melt the charge (in kcal/t).
3) An equation relating the quantity of heat supplied to
the charge and the molten bath with the width B of the
furnace:
Card3/18 ki = f(B)

SOV/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
which(an be obtained only by calculating the heat transfer
under given operating conditions for various values of B
Taking into account different values of F for the raw
and roaBted.charge (owing' to different angle ofiest in
each case) and using a formula proposed by Diomidoirskiy
(Ref 1);
~L 100 (12)
GI 8 QPR + 3.1 7BQ~tB0;,A - 3.3 v t
m J-. OTX
where vBoig and v - volume of air and gas,
ra5 respectively,
t-VO and t1a - temperature of air and gas,
.3 respectively,
the author arrives at the final equations (13) for the raw
charge and (14) for the roasted charge:
Card4/18

SOV/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
and the value of Q, , i.e. functions fl(B). or Bq (13)
and fI(B) or Bq (3), function fj(B) determined for
qp9K ~ 13 000 kcal m-3hr-1 is shown in Figure 1, where the
aptinum value of B = B I is given by the point of inter-
section of the two graphs. It can be seen that in furnaces
with B less than 11.2 m the full potentialities of
the heat transfer are not realised.' while furnaces with B
greater than 11.2 m would also.operate*uneconomically since
in this case the furnace gases would carry mbre heat tlvm
could be imparted to the charge and the molten bath, wilIL-th
the result that the temperature of the waste gases would
exceed its pre-determined value. Having thus.ihown that
for given operating donditions as determined by the type
of charge, the fuel and the optimum temperature of the
waste gases, there is an optimum value of the width of the
furnace, the author proceeds to calculate the length of
the smelting zone. Since the velocity of gases is deter-
Card6/18 mined by the maximum permissible losses of the furnace fines,

SOV/149-58-6-.11/19
The Optimum Faxameters of Reverberatory Furnaces for Copper Smelting
(B 2_0 2)W IL%IX~A7330 Vrw. t OM)
t(800 QPH+310 VBC3 (18)
QElVo(l + at'r)
0-5774(B 2-02)Wt(8OOQPR+310VBOXtB"-330V~ (lQ
L11-1 V (l + atr)
QZ-1 o
respectively.
The capacity, of the furnace, G, (for the given type of the
charge) can now be calculated from:
G = 24x0. 9 Q.~l LI~Lr% .tons/24 hours (20).
i
Since in practice,the length of the settling zone of the
furnace constitutes 20-35% of the total length LO;U
Card8/180f the fu rna.ce, it can be taken that:

SOV/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper SM61ting
Lnn
1,03 a - 0.8
Then the specific capacity of the furnace a can be
calculated from the formula:
G
a =- = 1?.3 S4
BL06a Bj
tons I per 24 hours (21)
In the next chapter the author discusses the problem of
calculating the optimum temperature of the gases leaving
the furnace (waote Sauee). He asserts that the optilnurn
temperature of the waste gases is that which would ensure,
that the slag in the settling zone of the furnace is maizi-
tained at a temperature at which the viscosity of the SIELg
would be such as to result in minimum losses of the metal.
in the slag. In the absence of any detailed data on the
optimum temperature of the slag in the settling zone the
autbor assumes that it should be equal to the temperatume,
,c;sLrdg/,8 of the mol.ton bath in the smelting zone. Since there is

SOV/149-58-6--11/19
The Optimum Parameters of Reverberatory Furnaces for Coppw Smelting
no eharge present in the smelting zone, the author considers
the present problem to constitute a case of heat transf er
in a reverberatory furnace with the material resting on the
hearth only and uses the method of calculations pro-posed
for such a case by other workers (Refs 3,4). The set of
the starting equations consists of: i) an equation for
the total resulting heat flow, Q21 , to the molten.bath
(Eq 22); 11) an equation for the effective radiation of
the lining QKj (Eq 23); 111) an equation for the effective
radiation of the molten bath QB (Eq 24). In these -
equq0ions a,.. and aB - radiation coefficients of the gas
stream and. the molten bath, respectively ('13i-Tic"all hr-IV4)
and F - surface area of the "lining" and the malten
FKj%
bath (in respectively, the area of the "lining" meaning
here the area of the roof of the silica 1~anks and of the
unprotected portion of the furnace walls, C and
eB
CardlO/18degrees of blackness of the gases and the molten bath,

SOV/149-58-6-11/19
The optimum Parameters of Reverberatory Furnaces for Copper Smelting
KA (PB _ angular coefficients of the lining
~*k'q and Kil
"Against itsblf" and of the lining against the molten
bath$ QJVT - heat lost by the lining into the surroundings
(in kcal/hr), T and TB - temperatures of the gases a:ad
V 0
the molten.bath (in K). The expression from which the
minimum temperature of the waste gases, T r_.OTX I
necessary for securing the normal course of the process -can
be calculated is given as Eq (27), where a = F ft
hearth srea/area of the molten bath, e rlO;k / J:B
r - degree of
blackness of the gas stream at the end of the settling zone
of the furnace, (q - heat lost by the molten bath through
MAI 2
a unit hearth area (Iii kcal m7 hi-1 qrpT - heat lost
by the lining (in kcal m_2hr_l) -
The author shows then that the fuel consumption depends
solely on the temperature-of the waste g"es and that, since
Clar4ll/18the specific fuel consumption increases A.Verbolically

PaOV/149-58-6-K/19
Tho Ontimun TArAmAtArR of RevarberatorV Furnaces for oDDer Smeltinst
a
with increasing tr.oTx, the minimum value of tr.oTx
calculated from Eq (2?) is also its optimum value. Some
calculated values of t OTX are given in Table 1 under
the follgwing headings i) the melting point of the
OC
chexgo, C; ii) the temperature of the m8lten bath,
iii) the temperature of the wa te sles - C" for Various
values of the width of the furnace n m3. In the next
chapter of the paper, the author considers the problem of
selecting the-optimum value of the heat intensity in the
smelting zone, . qPer? by which,'among other things, the
optimum width of the furnace and its capacity are deteriiined.
To.this end he calculates the dimensions of the furnace and
its capacity for different values of qpelt-I as used in
industrial practice. From the results given in Table 2,
he concludes that the optimum value of qpoK is that
which corresponds to the length of the smelting zone equal
to the length of the flame. For the furnaces equipped Trith
Cardl2/18burners of the commonly employed type this value is equal

SOV/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
to 120 000 - 130 000 kcal M73hr-l. In the following
chapter the problem of selecting the optimum gas
velocity, Wt , in reverberatory furnaces is discussed.
It is stated that the selection of W t should be based
on considerations of the cost of treating a unit of charge
or of producing a unit of matte. The cost, S , of
smelting a ton of charge can be calculated from the
formula: )(P kGi-Re
-S + (2S))
G:. G1
where ; P price of a ton of fuel (in roubles),
k - coefficient of the dust losses, determining the
proportion of the charge carried away by the furnace
gases, R - coefficient determining the proportion of
unrecoverable dust losses, e - value of a ton of dust
(in roubles). The relationship between W+. (in in/see)
amd the furnace capacity, fuel consumption' the dimensions
Cardl3/18 Of the furnace and the value of 8 is given in Table 3.

SOV/149-58-.6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelti_njz
The figures reproduced there were obtained with the aid
of Zq (29) for a furnacl with B = 11.86 m, the other
parameters being: 3r/G = 0.181, R = 0.5, cost of the
fuel (pulverised coal) 114 roubles/ton, value of the dul3t
- 336 roubles/ton. The figures reproduced in Table 3
show that in the absence of dust-collecting equ ment, it
is advisable to operate reverberatory furnaces jj-e-ven those
with a large B) at low Wt . In the case under consid-
eration, by decreasing W t from ? to 5 m/sec, the cost of
smelting 1 ton of the charge is decreased by 0.67 roubles
which results in a saving of more than 400 000 roubles
per aimum. However, at the same time, the capacity of the
furnace is decreased by 39.5%. The effect of the physical
properties of the charge on the constructional parameters
of reverberatory furnaces is discussed in the last chapter
of the paper. The relationship between the quantity of
radiant heat absorbed by the charge and the molten bath
per 1 m of the furnace length and the width of the furnace,
the melting point of the charge being (1) 1250,
Card14/18 (2) 1200 and (3) 1100 "C, is shown in Figure 2. This

SOV/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
relationship was determined for a furnace operating under
the following conditions: fuel - pulverised coal with the
calorific value of P -- 6899 kcal/kg; the initial
temperature of the gases t r 14wr = 1 570 OC-9 COMPO'Bition,
of the gaseous phase (%) : 14.0 CO 2$ 8H20) 2.0 802; degree
of blackness of the charge and the molten bath
ew = C~B = 0-7 - The temperatures of the banks of 'the
charge tLU t molten bath , waste gases t r
tB ,.0T% and
the gas stream at the end of the smelting zone t 1-41KOR
correspondJng to various melting points t of the charge.
are given in Table 4. The results of calculations of the
optimum parameters of the furnace for various values of
tn3l are given in Table 5 (in these calculations
qpeK - 130 000 kcal M73hr-l and .Wt = 7 m/sec.
When similar calculations were carvied out for pe-roaded
Gardl5/18charge and the gaseous phase containing (%) 14.5 CO 22

SOV/149-58-6-11/191
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
6 H20f 0.8-80 21 the optimum width of the furnace remained
practically constant and equal to 13.4 m when t~e melting
point of the charge *aried from 1 100 to 1 2.50 C (in
these calculations the degree of blackness of the gas
stream was determined from the composition of the gaseous
phase, taking into account the effect of the dimensions
of. the furnace and of the solid particles present in the
gases). When, however, the optimum width of the fuxnace
is calculated for raw charge assuming, as has been postulated
by Rafalovich, that e r = 0.3 does not depend on 0 the
dimensions of the furnace, then for t 11-1 -.1 200 C9
B = 9.93 m and for t = 1 250 90, B = 10.8 m Thus,
nil
before the final selection of the optimum constructional
parameters of reverberatory furnaces is possible, the effect
of the furnace dimensions,on the degree of blackness of the
gas stream has to be determined.
In conclusion, it is stated that: 1) the operational
efficiency of narrow reverberatory furnaces can be
Cardl6/18considerably increased by increasing their width to an

SOV/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
optimum value; 2) since thelower the melting point of
the charge the smaller is the optimum width of the furnace.,
it is expedient to aim at lowering the melting point of the
charge in the existing ne row furnaces; 3) it is
essential in cobper reverberatory smelting to make provision
for the collect-ion of duet. The initial cost of the
equipmen:b will be recovered in short time owing to increased
technological and economical efficienF of the process;
4) with the existing burners the optimum heat intensity in
the smelting zone is between 120 000 and 130 000
kcal 1~-310,r-l 6 5) the temperature of the waste gases should
be 100 - 110 C higher than the melting point of the charge;
6) the efficiency of the existing furnaces can be
increased by increasing the initial temperature of the gases
in the fore part of the furnace. This can be done either
by using an ox,7gen/air mixture or by employing pre-heated,
air.
Cardl?/18

AM! F410 I MURPM Wl,~M Vsx I is-_--PnY3: W 1 i~:';;j If ~i4 I sZflnrKIO 1;5!9 1 U
SOV/149-58-6-11/19
The Optimum Parameters of Reverberatory Furnaces for Copper Smelting
There are 2 figures, 5 tables and 6 Soviet references.
ASSOCIATION: SeverokavkaZBkiy gornometallurgicheskiy institut.
Kafedra obahchey metallurgii (North Caucasian
Institute of Minin and.Metallurgy. Chair of
General Metallurgy5
SUBMITTED: June 9th, 1958
Card 18/18 AJ6 /77 7--t 11U
s7
/-,a A) a e
C-1 171, -C L'C~7,-

AUTHOR.- Davidson. A.19. SOV/121-58-9-11/21
TITIR: The Use of a 1~ydraulic Copying Attachment. in the MaeWining
of Fashioned Components (Pr1meneniye gidrokopirovaV,nogo
supporta pri, obxabotke fasonnvkh detaley)
PERIODICAL: Stanki i Instrument, 1958, Nr 9s pp 35 - 36 (USSR)
ABSTRACT: The hydraulic copying attachment, Model UP-240, is shown
in a photograph, mounted in place of the cross-support on a
universal lathe. A stepped shaft is illustrated and its
machining with the help of the copying attachment discusaed.
The re-setting of the machine for a different component
takes less than 12 minutes. The loading and unloading
for each component take less than 8 see. The master for
copying is a similar component and not a template.
There are 4 figures.
Card 1/1

DTHORt Davidson, A.M., Engineer SOV/122-58-12-6/32
TITLE: he iamic Balancing by Means of the V.K. Vibrbscope
(Dinamicheskoye )Alansirovaniye s pomoshchlyu
vibroskopa V.K.)
PERIODICAL: Vestnik Mashinostroyeniyal 1958, Nr 12, pp 19-21 (USSR)
ABSTRACT: The V.K. Vibroseope consists of a vibrometer, and a
stroboscopic lamp supplied with rectified current. The
vibrometer consists of an indicator which is a leaf spring
with a small mass at the free end. The spring is pressed
against; a disc7 near its clamp end, which can be axia1ly
displaced by a screw7 thus varying the free length of
the spring. The unit detects the resonant frequency,
when the amplitude is read on a scale against which the.
free and of the spring moves. The position of the disc
determines the resonant frequency and is read on a
calibrated scale. The phase of the oicillations is
detected by an adjustable contact. Vibroscope 2-VK is
suitable for frequencies of 700-3000 opm and detects
amplitudes between 0.01 and 0.20 mm. Vibroscope 3-VK
Card 1/3 can be tulied to 1100-3000 cpm and detects the same

SOV/122-~8-12-6/32
The Dynamic Balancing by Means of the V.K. Vibroscope
amplitudes. The use of the device for the balancing of
grinding machine spindles in situ is discussed. The
electrical circuit makes the stroboscopic lamp flash
every time the vibroscope leaf spring touches-the
adjustable contact. First, the spindle is ca 7ibrated
"dynamically" with a known unbalance position. 'Thu-...
consists in finding the angle between the unbalance and
the maximum deflection phase. This angle is a constan~t~'~,.
for a given rotating system. Next, a chalk mark is made:~.-
on the wheel face which stops under the stroboscopic
illumination of the rotating wheel. The actual unbalance
is displaced by, the angle previously found by calibration.
The balancing weights are then placed in the appropriate
Card 2/3

SOV/122-58-12-6/32
The Dynamic Balancing by Means of the VA. Vibroscope
positions,, "Dynamic" balancing by-this method redmood .
the amplitude.in a now grinding machine from 0,08-0,1-6 mm
to 0.03 mai and took 10 minutes.
There are 4 figures and 1 Table.
Card 3/3

DAVIDSON., A.M.
Efficiency of,uslaig.preheated air for reverberatory copper.
Irv. vyp. ucbeb. zav.; tsvet. met. 4 'no. 5:152-155 161. KIRA 14:10)
1. SdverokavImiolly gornometallurgichaskiy institut, kafedra
obahchey metaUurgii4
(Copper-Metallurgy)

DAVIDSON, A.M.; FLENKDIA,, V.K*
Soldering cutting toolo with high-frequenoy currents, hwhino-
otrol:telf no.5:41 4 162. (MMA 15:5)
- (Electric welding)

~ - -- - -~ pft~ Ql~-
DAVIDSON A 14 - MAGAY S. A.
Pimehing instead of.cutting out. Mashinostroitell no.12:29
D 1620 (14IRA 16-- 1)
(Forging)

DAVIDSON., A.M.
Changing furnace 21nings lkthen using an oxygen-enriched blaet.
Izv. vys. ucheb. Bar.; teret. mt. 5 no.6:122-125 162.
(MIRA 16:6)
1. Severokavimakiy gamnom%tanurgicheakiy inatitut, kafedra
obahchey metanurgii,
Metallurgical ilumeem)
~Qxygen-lnduztrial applioationa)

DAVIDS(V, A.M.-, G'rNZBURG, Ye.G.
~'-. . -
Calculation of capital investments and depreciation deductions in
zv, vvs .
selecting optimum parameters of metallurgical furnaces. I
55 164 (MIRA 18:1
ucheb. zav., tsvet. met. 7 no,5t150-1
1. Severokavkazskiy gornometallurgicheskiy institut i Permskiy
politekhnicheskiy institut.

D A DD S
oll
-1-..
optin)lll,l j-j(qjt for
I chob, ZaV. ; t5%r9t. 7 no.':,84-89
smelt,4ha. Tzv, u 0 1 E
,I muv, 8.- 3)
? 64.
gomcme-tallurl-I.chle ski y
obs,hohey raotallurgil.

DAVIDSON, A.M.
Au",iatic control of machJj-iing sockets for cutter blades.
Mashlnostroitell no,110 14,164 (MIRA 1W)

.1 ?4
DIAVIP3CY,
UBIng I-urtype mill-Ing uianhJnes for milling supporting surfaces
, U
QP cuttlng-tool Stan. i instr. '15 no.ll:"8 IN 164.
(MIPA 13~ 3)

PATIDSON$1 KINIVNTSUA. A.G,
~mvst2gating temperatare al3rp the
L g
flamic of a copper small.-Ing reve-.-br.:riitc,-,-y fur.-Act-i~ the I-AI'D
cf a model!ng much'I'me, lrzv. iry6, -,~-,hnb. -iav.; tEvet. T.-le
no. 3 u!15-120 165.
I . severokavks--s ~ ~y gC rno In Ot le-n! f (A '.-i I
Oh9h0lay metallm-P, '~ i ,

DAVIDSON KIR)F(V-AVTSEVfi., L.G.
Jnventigating changes of the flame temperature In tubular kJlr4a
w1th the help of a modeling machine. Izv. vya. ucbeb. zavo~,?
tsvet. met. 8 no.5~89-94 165. (~9RA M10)
1. 5everokavkuzskiy gornometqllurgicheskiy institut, kafedra
ob.shchay matallurgil.

4AVIDSON A.M.
Calculating heat transfer in copper smelting reverho-rat-ori
furnaces on the zone method basis. Izv. vys, ucheb. zliv.;
tsvet. met. 8 no.4:103-110 1615. (~aRA M9)
1. Hafedra obshche3 metallurgii SeveroRavkn-,,qkcgo garnometallurl-i-
cheskogo Jnstitutu.

DAVIDSON, A.M.
Diamonds., quality and reliability. Standartizatsiia 29 no.7:
56-58 ii 165. (MIRA 18:11)

DXVIDSON A-M-----
Basic principles of a standartization system.
Standartizatsiia 29 no.9t4O 3 165.
(MM 18:12)

DAVIDSON. B. ka.nd. arkbitektury
Rational utilization of city building plotq. Zhil. stroi.
no.8:6-7 165. (MIRA 18:8)

KUZMAK9 G.Ye.; ISAYEV, V.K.; DAV, _ Kh.
Optiminn conditions for the-notion of-a point of variable mass
In a uniform central field-9- Dok1.AN SSSR 149 no.ls58-61 Mr
163. - OURA 16Q)
1. Predstavleno, akademikon A.A.Dorodnitsynym,
(Automatic control) " (Gravitation)-

DAVIDSON, B.Kh.; ISAYEV,, V.K.; SONIN, V.V. (Moscow)t
"Optimum regimes of motion.of a variable nass particle with limited
power along nearly eircular orbits."
report presented at the 2nd All-Union Congress on Theoretical and Applied
Mechanics, Moscow, 29 Jan 5'Feb 64.

jr-~4V/f)SnAi,
DAVrDSON, S.M., kand.arkhttektw7, dots.
WA1rK:' - -
___ Organizing grounds of residential blocks In constructing small
standard apartment houses. Gor.khoz.Hosk. 31 no.12:11-14 D 157.
(MIRA 10:12)
(Sverdlovsk Province--Apartment houses)

DAVMON,-B,,M. -dotsent, kiLnd.arkhitektury
1~ 9
Ty;ms of apartments in model apartment houses with few stories used
in bities in Sverdlovsk Province (in the period of the fourth and
fifth five-year plans). Trudy Ural.politakh.inst. no.109:65-79 161.
(MMU 14:7)
(Sverdlovsk Province-ApiLrtment houses)

KEYBARp-A.-Poj DAVIDSON9 BaSo
Protracted pregnancy. Kaz. med. zhur. no. 2:51-53 Mr-Ap 161.
(MIRA 14:4)
1. Akushersko-g:Lnekologicheskoye otdeleniye Yaroslavskoy dorozlmoy
bollnitsy Severnoy zheleznoy dorogi (nachallnik otdelen:Lya -
A.P. Keysar).
(MGIWCY r PROTRACTED)

-zs- FV
DAVIDSON, D.G. (Leningrad)
Nev forms of work of the departmental sanitary service.
Vop. pit. 20 no.6:78-79 N-D 1610 (IURA 15:6)
(PUMLIG HEALTH)
,(RESTAURAETS9 LUNCHROCKS, ETC.-HYGIENTIC ASPECTS)

DAVIDSON, D.L., inzh.; PURINYSH, R.A. [Purins, R.A.], in2h.
DP-1 and DP-2 automatic shovels. Mekh. trud. rAb. 11 no.12:30-31
D 157. (MIRA 11:3)
(Loading and.unloading--Xquipment and supplies)

USSR/HUrm and Animal Morphology. Pathological Anatomy. 8
Abs Jour: Ref Zhur-Diol., No 15, 1958, 69693.
Author Davidson, G.B.
Inst
Title The Mbologicoanatomic Diai3nosis of Shock.
Crig Pub: Sb. nauchn. rabot vrachey Kirovogradek. obl., 1957,
No 1, 62-64.
Abstract: In 140 autopsies with the diagnosis of shock, the
tissues under the endocardium. of the left ventricle,
in the muscle trabeculae and papillary rmscles,
and in the aortic sinus, revealed well developed
foci of hemorrhage of irregular form and differing
sizes, which were of a bright red color. The
author believes that these spots, in the absence
of najor blood loss, are a characteristic sign
Card 1/2
45

DAVIDYUK G D [Davydiuk~ H~qD I (Kiyev); MITfYLINSKIY, Yu.T.
IU.T.j (Kiyer)
Cognition of handwritterk,Vtnd hyped numbers using a comparison
method involving st9ndai4di. Aytomatyka 9 no-4:30-36 164.
(MIRA 17:8)

]DAVIDSON, G. 0 PROKHOROVAy L.B.Ctranslator); MOROZOV9 V.N.[translator];
TbRCHDr;V-.K. [translator]; POPOVAv M.F.p red.
(Biological effects of whole-body gamme radiation on human beings]
Biologicheskie posledstviia,'obshphego gam&-~obluchsniia cheloveka.
Pod red. M.F.Popovoi. Moskvaq Atomizdato 1960. 1-07 p.
(MMA 14: 8)
1. Johns Hopkins University. Operations Research Office.
(RADIOACTIVE FALLOUT) (GAMA RAYS-PHYSIOLOGICAL EFFECT)
MY.

Dfiv,950 N, 1-3).
Subject
Card 1/1
Author
Title
Periodical
Abstract
AID P - 4523
USSR/Engineering-welding
Pub. 107-a - 9/13
: Davidson, I. D.
: Rolling Method of Making Welded Tanks
: Svar. proizv., 2, 24-25, F 1956
: A new and more efficient method of making welded tanks
of up to 26 cub.meters capacity by automatic and semi-.
automatic process was developed at the Steel Construction
Assembly ,Stallmontazh-l") Trust workshops. The author
describes the technique of welding on both sides. The
method greatly improves the quality of the tanks and
increases production by 30 to 35% with a significant
reduction of working force at the same time. One
drawing and 5 photos.
Institution : Steel Construction Assembly Trust-I
Submitted : No date

DAVIDSON, L.. inzb.; SHISHKO, I., brigadir slosarey
WP-2 and HKP-3 cratme. Stroitell no.10:14 0 '58, OaRA 11:11)
(Cranes, derricks, ate.)

DAVI 0-1.-f~h.
Mobile scaffolds to be used in plastering. Stroitell no.8:23
12:12)
Ag '59. (Scaffolding)
OIRL

SERGLYEV, I., inzh.; DAVIDSON, L.; IQHCHINSKIY, V., slesarl
F~ractices of innovators and inventions of efficiency promoters.
Stroitell no.6:25 %Te 160. 04IU 13.7)
1. Glavnyy mekhanik M-439 tresta NooM (Eharlkov).
(Building--Tools and impliments)