SCIENTIFIC ABSTRACT SMURZ, Z. - SMUTEK, R.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001651810001-8
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 26, 2000
• Sequence Number: 1
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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RUZICKA, Vlastimil; KALAL, Jaroslav;-MM, Zdenek
Contribution to the study of catalysts prepared by the decomposition
of mixed salts. V.Catalytic hydrogenation of nitrobenzene to aniline
in vapor phase at normal pressure. Sbor chem tech 4 no.2:473-489
16o. (EEAI lo: 9/10)
1. Katedra organicke technologie, Vysoka skola chemicko-techno-
logicka, Praha.
(Catalysts) (Salts) (Nitrobenzene) (Aniline)

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AUTHOR 51.1u9KEVIC, I. .:.
TITLE On Momentum Approximation.
PERIODICAL @urn.eksp.i teor.fis,31,fasc-4, 725-726 (1956)
Issued: 1 / 1957
K.A.BRUECKNER, Phys.Rev.89, 834 (1953) investigated the scattering of particles
by a system with two centers with vanishing effective radius of forces. (Scat-
tering of each of these centers is spherical-Symmetric and is characterized by
the amplitude 71 = (1/k) sin 6e i6). Here 6 denotes the phase of the S-wave in
infinity. The expression resulting for the scattering amplitude of this problem
is explicitly given. Proceeding herefrom BRUECKNER finds the following by con-
necting the imaginary part of the amplitude of scattering in a forward direction
with the total cross section: The difference between the expression for the to-
tal cross section and the corresponding expression obtained by momentum approx-
imation becomes immaterial not at R - Oo, but at 6 4 0. (Here @ is assumed to
be equal for both centers). Herefrom he draws the conclusion that it is correct
to use momentum approximation without taking multiple scattering into account
only in those cases in which also BORN'S approximation is applicable.
In reality, however, this conclusion refers to the total cross section.(Also
this applies only with the reservations made in the following). However, compu-
tation of i,he differential cross section of scattering into small angles by
means of momentum approximation leads to correct results. Physically, this is
apparently connected with the fact that, in the case of small scattering angles,

V
a P" -
Zurn.eksp.i teor.fis,_31,fasc-4,725-726 (1956) CARD 2 / 2
the interference of the waves scattered at each of these centers plays a part.
This interference is taken into account in momentum approximation. The exact
expression for the differential cross section da/dE@ resulting from the
aforementioned scattering aMDlitude is explicitly given (referred to the unit
of the space angle and averaged over all directions of the vector R). In momen-
tum approximation the following i$ found without difficulty:
dcr/d 2(da0/d + sin (1k - k 0 -k@ R.1 In the case of a high
R)/1 k
energy of the/im inging particles NR >;,1) and in the case of small scattering
angles 1 kR5 the approximated expression differs from the exact expression
only b small amounts of the order x-2. Consequently, under these conditions
( '@ /R@ 4

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-S M Y 7T K, M,
SMUT&K, M.
11@@-; I -, I;i I! -. t I -
Kinetics of electr--ade processes. Part 2. Slow electrode processes
[in JCngliBh with summary in Russianj. Sbor.Chekh.khim.rab. 18 no.2:
171-182 AP '53. (MLRA 7:6)
1. Urxovy zavody, Ostrava.
(Electrodes) (Laplace transformation)

6 14 tj 7,41f, /A -
SKUTI;K, M.
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. I : @- 1,
Kinetics of electrode processes. Part 5. Two-step electrode reactions
[abstract; in FngliBhJ. Sbor.Chakh.khim.rab. 18 no.6:885 D 153. (MLRA 7:6)
1. Urkhovy zavody, Ostrava. (Niectrodes)

NIT Or,
ftedca of fiffirtrada --imes, @M-
tek
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Chm
chemle duNr
CS) V(tstav oft
.
.
,
.-The theory o a_
47, 953--02 1953) Try ern Ektrode process
formulated, the rate of which Is controlled by the rates of
the follo i g 3 elementary procesw: diffusion. prcper
electrode reaction (1), and the chern. reaction (M in the
soln. by which an electrode-active form of the depolarizer
can be formed. The problem 6 solved for one-dimensional
-diffusion and a plane immobile electrode. Tht final
expression for the c.d. results for 2 limiting cases In equa-
tions previously published: when I is fast (Kouteckjr and
Brditka, CA. 43, 48h) or when U is last (S., Ch@. Lirly
t4S, 241(1951)). X. Potarographle behaviors of systems
Involving any giTen number of substances Interepnected
'_)iy rapid chemical reactions in solution. jaroslav'Routeck@.
Obemical Abst. V Ili=. Czcch.l. Ibid. 1293-

Vol. 48 8@ExpresWsi n r the total instantaneous and av. current
are derived for system, the substances of which may be
1pr. 10, 1954 interconnected by electrode reactions according to any
given scheme. The electrode reactions may be slow
Electrodiemistry
eventuall . The reactions of the substances inALt-salia.
are assumed to be of first order, consecutive reactions being'
excluded. The derived formulas can be expressed as a
linear combination of time functions known from more
simple Problems. The soln. is thus reduced to an alge-
braic problem. rrom the soln. for the phinc immobile
electrode, the soln. for the dropping electrode follous at.
once. XI. The golarographic current due to an electrode
'
process preceded v P. cherniol reaction In solution between
.
in OW diffusion coefficients. Rid,
ngTor the av. current are derived for 2
depolarization schemes: in the first case. only one suba
stance is electrode-active In the given Potential range, In the
second case, both substances are active. The chem. reac-
Lion in the soln. is supposed to be very rapid and of the
first order. Eid6s

2
obadema Abet.
V01. As
Apr- 10, 1954
zuetroobadaUT
0
not& on 21 Constant current density MUM
,S"ift 11 -,=X). Che;". MOY
I
.,17p 9"19m). work of Gorbachev
(C A. 45. &54&; 47, 4767s) concerning the polarization or
elWrO& diffing ekCtr()IY36 at const. cd. The
formulation of the problem and Its soln. given by C are
coffected. . E. ETT

Q

itk4, of ifie vi. ..Ktnetk4

rivation -d or
pt th" .1a
electro& lAyer. All
Sm
ILI-k (um,w
ostmm Czech. . ..Couedids URW
or
@
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W1934Xhi- JR119W.-Se
-CA-.47@2020*--

,5 A) TFX1 M f
SKUTEK, M@
Xle,trolysie at constant current density (in Russian with summary in
English]. Sbor.Chakh.khin.rab. 19 no.1:31-38 P 154. (KLRA 7:6)
1. Zavody Im. Urkaa, Ostrava. (Blectrolysts)

01 -,F- K, M -
PlIVA, J.,, SMUTEK, M@
Kinetics of electrode proceBees. Part 9. Electrolysis with an antecedent
chemical reaction Lin English with summary in Russian]. Sbor.(;hekh.khim.
rab. 19 no.2:210-220 Ap 054. (NI-RA 7:6)
1. Department of Physical Chemistry, Institute of Organic Chemistry,
Cze&oalovak Academy of Science, ]Prague, and Urxovy zavody, Ostrava.
i,Electrolysis)

-7
T"' Fl=-ctrode " rocesses, XIII. Theory of S-"o,,,, Electro@1,7--
1"Occ Fif @Psll 1, /,,,1 (cFE'ICTC L7::)" 'Vol. /X, "cl. 3, lar. 1954, Pral-a
SC-: ont',1:1, LIqt -f -"a Eiirw ean Access, i.ons, (E! AQ 7 LC 1
17-cl.

C-f@wve/\-j A@
CZECUO-LOVAKIA
KMWKI, U.;
Ross-arch Institute 9*r the Clw4stry of Tar (Forachungain"Itut At
TOOSVItemi*), Uzzovy Savody. 08twora
Mragua, Collection of Cxechaslavak Chemical Cgw@icstiqps, So 2, Fab
L466o pr 515-550
Opy"" _UZ-Golveat systow. part Is TerUary
systems in vater-bons".-

E@-nslllty currents. 2
TCGY
F@-a'ia, (-zechoslcv---kia
Sc: East 'Icl 5, -19-56

--,".71. 7
Flow o' fluid 1:'Yers of different te,,!,pel,aLures. P.1
"eskcs-levensk-, "IcrAemie ved. T.',DU Fraha
I,.* (A. no. 'j, 1955
East !@Urc@.:can z-cces.A,-,ns QLst Vol. 5 No. 1 jE-n. 1956

Di.stributi-m -)f sheqr- stress In --i rectpingiilf3r channel. in -@'ngiish. p. 29'r,
I 1, "7: -o. 1?1;", Frahn, 'zecnoslovakia)
11) LC, Vol. 4J, 1-o. 12,
.,-Dn-thly 'ist )p -ast uronean ccpssion5 ('@@ 1. Dec 1957. Uncl.

SMUTER, R.
Measurement of turbulent-water flow by man* of thermistors. p. 300.
VODOHOSPODARSKY CASOPIS. (Slovensks, akadeaU vied) Bra t1slava, Czechailovakiao
Vol. 7, no. 4, 1959
Monthly List of East European Accession (BUI), LC Vol. go no. 29
Feb. 1960
Uncl.

SMU7 .1.
The,:@retical ba5es of the fl3w throuj-- rectan-ular sectionsl P. 3.
Z@
RO@PVITY @@ADA TECIIINICKYCH TED. (Transactions on technical sciences issued by the
@ - I ,
Czechoolovak Academy of Sc-11-inces; with English and Rusjian stmiaries)
Praha, Czechoslovakia, Vol. 069, no. 5, 1959.
Yonthly Llst oL' East European Accessions, (EEAI), W, Vol. 8, No. 12, Dec. 1959.
!Jncl.

SMUTEK, Rados, inz., CSc.; RUDIS, Miroslav, inz., CSc.
Somu experiences with the measurement of water turbulence.
Vadollosp cas 11 no.2:197-206 163.
1. Ustav pro hydrodynamiku, Caskosloveaska akademie ved, Praha.

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1@ Imititutp of @ivtjl-odynna@.i of the Czec,,,@;!31ovak Ac@aiclo-ny -@f
Sc."nra@e3, Fn;7ae 41, Fodbabska 'I'l. Submittee 13, l9b4,