SCIENTIFIC ABSTRACT FILIPESCU, E. - FILIPKOWSKI, A.

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• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000413110008-3
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 13, 2000
• Sequence Number: 8
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

ABRAMOVICI, R.; SAMI...D.; FILIFESCU,
Characteristics and comportment in exploiting some.grog refractory
materials,'Qbtained by a single combustion. Studii. chim, Timisoara
9 no.3/4036-341 Jl-D 162.

FILIFESCU, G.
~Isthod of'testing scales for railroad freight cars. P. 4. TEHNICA
NOUA . (Asociatia Stiintifica a. Inginerilor al Tehnicienilor) Bucuresti.
V01. 3, No. 34, Feb. 1956.
So. East European Accessions Idet Vol. 5, No. 9 September, 1956
M
R~H

am=/Chemical T~chnology,, Ch 'eiiftl Products and. Their
'4016itiot4" Part; 3 Mil aAd Oils.- waxes, soaps.,
Deter h FlOtiit iOn A ge- nt
Abs Jour: Referat. Zhurnal XhimiYa) No 10: 3.958P 34014-
Author
rnst Institute of Air-onomical Research.
Title on-the Ouilit~, of Ru~sniah Sesame and Peanut Oils.
UP
Orig Pub: An. Inst. cereet)KA agron-j, 1957., 24, No 5, 593-601.
Abstract: The physical-chemical properties of sesame and peanut
Oils, 1952 and 1953 crops grown in the Danube, South
Dtbrudja and Banat stelTes of Rumania, were studied.
It was found that in the case of dry and warm years
with prolonged falls wid of good grain storage con-
ditions,, these oils dij.1fer .1ittle by their properties
Card 1/2
U-25

~t2,--;-- N~- i~

LUTA-MOLDOVEANU, N.; ARNET, L.; VASU, S.; SELARIU, C.;
FURNICA, M.; 14IHAESCU, S.; MOTET-GRIGORAS, D.
Ckineral problems; research methods; reviews. Studii cerc
biochimie 6 no.ltl26-130 163.
uu-
ggg
Z;

TANASESCU, D.; FILIPESCU, H.; VASU, S.
Biochemistry of microbes; viruses 'j bacteriophages; antibiotics;
immanochemistry; reviews. Studii cere biochimie 6 no.l-.132-134
163.

FILIPESCUp H.; LUTA~OOLDOVEANU, N.; MOTET-GPJGORAS, D.; AIMT, L.
Vegetable biochemiatry;,rovien. Studii core biochimie 6 no.1;
134-137 163.
~~K FTIN~M-

COTARIU, D.; SCHELL, H.D.; LUTA-MOLDOVEANUs N.; ARUET, L.; FILIPESM H.;
FURNICA, M.; VASU, B.; MOTET-GRIGORAS, D.
Animal b4gchemistry; reviews. Studii cerc biochimie 6 no.l.,
137-142 163.

FILIPESCU, H.
Technical biochemistry; reviews. Studii care biochimis 6
no.1:147 163.

F.ILIFESCU, H,
Food biochemistry; reviews. Studii gere biochimie -6 no.lt
146 '163.

LUTA-MLDOVEANU, N.; COTARIUI D.; *HELL, H.D.; IORDACHE, C.; FXLIPESCU, H.;
FURNICA, M.; MOTET-GRICIORW D.; VASU, S.
Animal bioehemistry; reiviewa. Studii cero biochimie 6 no.2s297-304
163.

COTLRIU, D.; IORDACHEf C.; FURNIGA, M.; BATCUp A.;_fl~~PESCU, H.;
MOTET-GRIGORAS, D. 11-11.11., - . -
General problems. Research methods. Studii cerc biochimie 6
no.3:425-428 163.
1 1
A

MAITESCU, IT.; FILIPESCH) H.; 1107ET-GRIGOIUS, D.; BATCU, A.
Plant biochemistry. Studii cerc biochimie 6 no.3:429-433 163.

MAMSCU, H. GRIGOR-,;'SCU) C.; GOTIRIU, D.; SCHELL, If.D.; TOUACIII;
IIII.-I"Elick, Iff.: BATCU, A.; luinscu'-fl.
Animal biochemistry. StudIi cerc biochimie 6 no-3:433-440
i-63.

FILIPESCU H,-,, -
* I
Food biocheinisty. Studii cerc biochimie 6 no.3:445-446 163.
1
7r- ,

,.Z~4~PESCU, ;,H.,,- MOLDOVEANU, N.; VjUU, S.
Plant biochemistry. Stud~i cere biochimie 7 no.12125-126
164.

FILIPESCU H.- SCHELL, H.D.
-
Glucide bioehomistry; lipide blorihemistry; enzymes. StLd',i
cerc biochimie 7 no.1:12,11 164.

FILIPESCU,,.,.11.; VASU, S.
Technical biochemistr7. Studii cere biochirde 7 no.1:133
164.
f

GURBAN, C.j BATCUO A.; MOM-GRIGORAS, D.; CRIS.TEA., E.,- POPESCU) A.;
FILIPESCU H-J, ~MWLF~Gll 1 0.a
Apimal biochomiistry. Studii cerc bioohimie 5 no-3:463-467 162.

MANESCU, M.; POPESCU, A.; -FIMPMQU,-H,,-
Pl~a~cology. Toxicology. Studii cere biochimie 5 no.3:473-1+74 162.

DOMA, A.; PAIYALVI, A.; BOTHA, I.; NIGOLAE, V.; COLAN, H.; SANDDR, L.;
FILIPESCU V.
M.; PEGULKA, M.; CONSTANTINESCUO
Studies on the antifriction materials Fe-graphite and Fe-Cu graphite,
gie r
Studii cero metalur no.4:441-456 162.

FILIP~ ~CUIM.,- VING.ENTIUs I.
New method of extracting argon from rocks and Its, microdetemi on
,-+-tl
by gas chromatograp4 for determining the aboslute age of rocks.
Rev chimie Min petr 3.3 no.11:693-696 N 162.

DWZA, A.; PALFALVI, A.; BorHA., L.; NICOLAE, V.,- COLAN, H.; SANDOR, L.;
FILIFESCU).~.; PECULEA, M.; COUSTANTIVESCU, V.
Coni~ributions to elaboration of the Fe-graphite, and Fe-Cu-
graphite antifriction materials. Bul stUnt polit Cluj
no.5:243-259 162&

7=1!SGU MA*SCR, Is,; COMCELl Mel AIMELUN, M,; ZADUKIAN,, Ale;
Methods and apparatut for extraction -*A& jdaredetermleatioll- of .
h7&ocarb6na from soil arA' roks ia .the 'geochamdeal prospecting
of hydrocarbon accwmlaticiU* P&trol st,'gaze 14 no.4.-169-174. 163.

DOVISAP A. ; PALFALVIq-A.-;,F]I UO' lfthiGlai'NICOLAE, V.; BOM, L.
Pressing and sinterizing properties of I.P.C. molybdenum
powders. Bul stiint polit Cluj no.7s213-221 164.

ACCESSION N01. t AP404ZI27
R/0017/64/000/004/0156/0158
11AUTHORs Domsa,, A-,s Palfalvip A*Y Filipescu,, M., Nicolaej ye,,' Bothaj, Le
TITIE s Fremsing and sintering of'molybdenum potdors
SOL74CES Metalurgia., no. 3-964j,--3-5-6-1-50
TOPIC TAGSs metallurgical pressing," sintering, are-casto molybdenum electrode,,
powder metallurgy
ABSTRACT: The article deals with pressing and eintering operations of
molybdenum powders made from indigenous raw materials. Two methods are used to
obtain compact molybdenum.: one in which the sintered semifinished products are'
forged and, possibly# #~wn,'-aAd one in which sintered molybdenum owder
electrodes are melted in vacuum'(also called the Are-cast method) ? As a result
of the experiments made., it appears that molybdqnum powder made from indigenous
iraw mat~erial has favorable pressing and sintering properties and can be used in
$owder metallurgyo Orig. hrtP'.haBs 31 figtwea and-1 table.
A
iASSOCIATIONI, None
7''
77
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AGMIXON Ws AP4042126 B/0017/64/000/OM/M54/0136
AUTHOR: Filipescu V.0 Nateiv.- ON
T ITIE i Volybdonum.powder diffuoion-on ketal. surfaces
SOMCESi Metalurgiap no. 4j, 1964, 154-156
ITOPIC TAGS: diff usion thermal-conductivityt electroly-tic depositing'
ABSTRACTi Molybdenum's rem arkable properties and particularly its thermal and.
electrical conductivity and its resintence tolckierfiical agents imposed its use in
coverini, metal parts in order.to-impravp their operation. There are several.
metholo of covering metal surfaces, which, in,ma-st cases, were all used in apply-.,.
ing mol3ibdenum; among the most studied of these are: pulverizing, depositing in
gaseous rarm, and electrolytic depositing. The article deals with the problem of
icovering, metals with molybdenum by solid state diffusion in the form of powder*
It has tifo purposes: to study,,..on the one hand# the diffusion of molybdianum in
iron alloys, and# on the other hand#.-to' determine optimum technological conditions.
for obtaining a protective covering capable of aasuring to the highest possible
degree the mentioned charaoteriatics.of.molybdan= for temperatures of up to 6000
Go Origo.arto*hasl 7. flgUrdio
!-Card I/A:-
j. 4

PIM I, Gh.
- -iTTV, fii~ipla; MATF
On the diffusion of molybdenim in the pulverulent state
on metallic surfaces. Bul stiInt polit Cluj no.7:231-
236 t64,

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.Rumania/1"'heinical Technology - Chemical Products and Their Application. Industrial
Organic Synthesis, 1-14
Abst Journal: 'Referat Zhur -Xhimiya, No 19, 1956, 62696
.1 ~Milt~; Danciulescu, Alexandra; Charles, Rosits.
Author: lil !!~n
Institution: None
Title: Preparation of Methyl Acrylate
Original
Periodical: Preparares. acrilatului de metil,, Rev. chim., 1953, 4, No 121 38-59;
Rumanian
Abstract: A method of producing netbyl acrylate (I) from ethylene cyanohydrin
(II) which permits to effect in a single phase hydrolysis and ester-
ification-of II according to the scheme: C%(OH)CR2'-'N -t %SO4+
CH30H _# CH2 M CHCOOCH3 + IG4HS04. To 86 0; 11, in the presence of
5% by weight of hydroquinone, in a current, of N2 and at 140-1500,
isr rapidly added, dropvise, a mixture of CT3OH and 96% H2SO4, heated
at reaction temperature for an additional 0-5 hour and crude I is
distilled from reaction mixture (bath temperature 15o-16oo at the
Card 1/2

Rumania/Chemical Technology - Chemical Products and Their Application. Industrial
Organic Synthesis., 1-14
Abst Journal: Referat Zhur - XhImiya, No 19, 1956, 62696
Abstract: start and 1700 at the end), and washed vith 15~ solution NaCl to
remove CH30H. 2-3$ bydroquinone are addel, dried with CaC12, and
distilled through Glinaky colinn . Pure I BP 77-800, d20 0.952,
n20 1.4600. 1 is stored in dark vessel in the cold with addition
of 1% hydroquinone.
Card 2/2

FILIPESCIII M.
Horizons of the Upper Cretaceous of the southern flank of the Slanic
Depression. p. 129. Vol. 5. No. 1, Jan. 1955. Comunicarile.
Sourde: East Earopean Accessions List (LEAL)i Le, Vol.. 5, No. 3, March 1956,

Exploration of layers of hydrocarbons by geochemical methods. P. 113.
PETROL SI GAZE
Vol. 7, no. 3, Mar. 1956
Rumania
Source: RAST EURO'rEJA.N LISTS Vol. 5, no. 10 Pct. 1956

FILIPES-OU, M.; PARA, I.
The age of red argils on the eastern versant of the Ceahlau and the tectonic
position of these deposits. p. 253.
(ANALKLIS. SERIA SMINTELOR NATURII. Rumania. Vol. 5, no. lit 1956)
SO: Monthly List of Hast Buropean Accessions (KUL) LC, Vol. 6, no. 7. JulY 1957. Uncle

F11nIVI-CUP m.; niescu, G.
New data on the stmtigrarhy of the region between ile Buzau VaIlly avKI the
Negni River (Ciucas-Teliu), and their importance for the dete=im--tion of the
struetize of the Eastern Carpathians. P. ni
STUDII GI CEqCETARI DE GEDLCGIE. Bucresti, Ramania, Vol. 3, no. 1/2, 1958
9
Monthly list of Last European Accesaions (EEAI) LC, Vol. no. 2v Feb. 19to
Uncl.

FILIPESCU,, Me
Some now data-on the problem of the extra-Carpathiart volcanism. p, 129
ANALEMSe SERIA STINTEM HATURII* Bucuresti., Ru=iias
Vol. 71, nos 17, 1958
Monthl~r list of European Accessions (EEAI) LCq Vol, 8. nos 89 Auge'1959
Uncle

FILIP ESCU, M.
Determining the content.of gas in cores. p. 145
PETROL SI GAZE. (IsociatiA Stiinifica a Inginerilor si Tehnician:Llor
din Romina si Ministerul Industriai Petrolului si ChImiai) 'Bucurosti..
Rumania; Vol. 9, no. 4, Apr. 1958
Sept.
Mont4ly List of East European Accessions OMI) LC Vol. 8, no. 9,,/1959
Uncl.

FILIPESCU M G ALMARESCU, G.
Repartitibn of the coarse-grained s6datones and arkcsic sandBtonew
~-Ith red feldspar in the Cretaceous of the Eastern Caxpathians., Studii
cero geol 7 zw.2:241-248 ~162#
.1. Membru coree(pondent al,Academiei R.P.R. si membru al. Comitetului
do redactie, "Studii Bi cercetari de geolof,4en (for Iftlipeacu).
am=p
0

FILIPESCU, M. G., membre de l'Academie de la R. P. R., DRAGAS'.,Ul, 0.
On the presence of c.ertain Nannoconue deposits in the
Jurassic-Cretaceous sediments in Rumania. Rev geol geog
Rum 7 no. 2s 191-197 163.

FILIPESCU M. G., academician; DRAGASI'AN, 0.
On the presence of some NaPnoeonus deposits in the
Aifassic-Cretaceous sediments in R=ania, Stualt
cercIgeol 8 no. 2: 185-193 163.

Fll,.TPE=j Miltiade V.; AURMZZ, Hihail
Chromatographic separation of hydrochloric acid from mole-
cular chlorine. Dari. seana. sed 48095-406 160/61
[publ. 162.]

I V ~ I T j~-- :fT 1,11, tl ad~v 4'.
ITUE , Eli rctl a , j ~ Y 'L , " --- ~- .. -:,.-,~, -- ~'- 11 1. ~. .
G~- lex methrri applicd in gar 'ogy. ", 2. ~, a-r 1. - --- -~ 6 - -' ~!
. IT, P
ct..1033-344 161-162 [publo 16-41-16
1. i*)ubmituta i~nj 3.9, 1901,

FILIPESCUs N.
Z.=--
Periodicals-* REVISTA DE CHIMIE V62,9., no* 10, Oct. 19,q8
FILIPES'Us N. Mixtures of phenolic resins vith caoutchouc and the possibilities
of obtaining anticorrosive coating based on these mixturese P. 539
Monthly Idat of East. European Accessions (EFAI) IG, Vol. 8p NO. 20
February 1959,, Unclass.

MW"w" END= -,hr~
RUMANIA
SATHA,1 I
PERIODICAL: Referativnyy zhurnal, Fizika, no. 11, 1962, 14, abstract 11-4-28t
("Bull. Acad. polon. scia Sbr. sc*i.11, ng. 3, 1962, v. 10, 161
166, English; summary in Russian)
TEXT: A detailed description is given of the properties of semiconductor
triodes.with c(>1 at short signals. Two types of semiconductor triodes were
analyzed: avalanche-type ones and such with current-type multiplication. On
the basis of physical interpretation, equivalent circuits are given for systems
with a common base and a common emitter, and (h) and (y)-paranteters are computed
for sem.teonductor-triode matrices. The equivalent circuits of' the semicond4ctor
triodes with ol ~;, I were obtained from the equivalent circuits of the semiconduc-
-tor triodes without multiplication by cutting in the source oj* current (M = Oie
which takes into account the multiplication mechanism. Here, M is the multipli-
cation factor. For avalanche-type semiconductor triodes, it depends on the vol-
Ca~d 1/2

r S/058/62/000/011/053/061
Equivalent circuits and properti-es of... A1601A.101
4 4
tage on the collector junctionr,.end does not depend on the frequency, as long
as the transit time is insignificant. The M of the semiconductor triodes with
current-type multiplication depends on the current of the collector and on the
frequency. The calculations carried out are tabulated. They show that, under
certain conditions, the real parts of the input and output impedances happen to
be negative and depend on the frequency. Analytical calculations were confirmed
by experiments. The measuringr3 were conducted on frequencies of 10 ke - 10 Me.
The results of the measurings are presented graphically. Viere are 6 references.
V. K.
(Abstracter's note: -Complete translation]
Card P_/2

FILIPKOWSKI, A.
Equivalent circuits and properties of transistors with multi-
plication of current carriers. Archiw elektrotech 11 no.2t
229-240 162.
1. Katedra Podstaw 'Telskomunikaoji, Politechnika, Warszawa,

P/019/62/011/1)04/004/010
D271/D308
AUTHOR: Pilipkowski, A.
TITLI~: Matrix properties of.transistors with current carrier
multiplication
PERIODICAL: Archiwum,Elektrol;echniki, v. 11, no. 4, 1962, 757-764
TEXT: It is proved that transistors with carrier multiplication
belong to the same class of quadripoles as electron tubes and con-
ventional transistors, and that the expression for their maximal
frequency is the same as for ordinary transistors. Under some con-
ditions, transistors with carrier multiplication havo, negative
real part of the input and output immittance. An equivalent circuit
and matrix expressions are applied, which were introduced by the
author in previous work (Arch. Elektrot , no. 2, 1962 Bull. de
lfAcad. Pol. Se., v. 10, no. 3', 1962, sir. sci. tecM. A transis-
tor with carrier multiplicatio.a can amplify either by removing at-
tenuation through its negative resistance, or in the usual quadri-
---pole manner. The matrix [Y.] + Ly .1tis calculated fo::- lower fre-
Card 1/3

..P/01 62/011/'004/004/010
11atrix properties of D271YD308
quencies at which the influence of negative conductance is at maxi-
mum. It is found that the matrix is indefinite, i.e. the network
is of the active type, the same as for ordinary transistors; sub-
stantial difference in behavior cannot, therefore, be expected. At
higher frequencies the matrix remains'indefinite an~. transistors
with carrier multiplication approach conventional types. The type
of instability is analyzed using the Hurwitz criter:-on and it is
found that, in the common base configuration, the input terminals
display short-circuit instability with the short-circuit at the
output and vice versa. In the common emitter configuration, the
transistor is unstable with the input both open- and short-cir-
.cuited; when the input is open.-circuited, output te:-minals display
short-circuit instability. The maximum useful frequ;ancy above which
no amplification can be obtained is determined from the condition
of the matrix expression, viz. when,it changes from indefinite to
positive definite. the formula obtained in this marrier is identi-
cal to that usually given for conventional transistors. There is
1 figure.
.Card 2/3

P/01 62/011/004/004/010
Matrix properties of D271YD308
ASSOCIATION: Katedra Podstaw Telekomunikacji Politachniki Warszaws-
kiej (Department of Pundamentals of Telecommunication
of the,Warsaw Politechnic)
SUBMI'MD: April 4, 1962

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AP603G344 SOURCE CODE: PO/0019/66/01,li/003/0553/0562
AUTHOR: Filipkowski A.
ORG: Department of Electronic Systems, Warsaw Polytechnic Instituto (Katedra
Ukladow Elektrdnicznych, Politechnika Warszawska)
TITIX': A new transistor follower circuit
SOURCE: Archiwum elektrotechniki, v. 15, no. 3, 1966, 5r,)3-562
TOPIC TAGS: transistor, follower, emitter follower, Darlington follower,
follower circuit, DC solid state linear circuit, transistor follower circuit
ABSTRACT: A newtransistor follower circuit, which can be designed for a wide
range of DC voltage differences between in-,put and output terminals is described.
Such designs will have many applications, e. g., in DC solid-.state circuits. The
new follower consists of one pnp transistor and one npn tranE;istor; its AC
performance is very similar to that of the class emitter follower or the Darlington
follower. An analysis is made of its properties, and design methods, experimental
results, and practical examples of operation discussed. The paper was prepared
UDC:'621, 372. 57:621. 382.3

AP6036344
at the Division of Electricity, ITnperial College of Science and Technology,
London, and is part of the DIC dissertation submitted to this institution. The
author thanks Dr. A. R. Bolothroyd for valuable advice and for discussions during
the writing of -the paper. Orig. art. has: 8 figures and 17 formulas. [Based on
author's abstract) [DR)
SUB CODE: 097SUBM:DATE: 26Mar65/OR.IG REF; 001/0TH REF: 003/