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AbstractAbstract
[en] The time-resolved spectroscopy measurements were used to study the kinetics of energy transfer process in the pulse radiolysis of xenon- fluoro- and chlorofluoromethanes mixtures. The main channel, at xenon pressure above 40 Torr, seems to be of third order, while at lower xenon pressures the second order process was the main one
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S0969806X98001273; Copyright (c) 1998 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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AbstractAbstract
[en] Based on the model of the interaction between the particle flux, emitted from the gravity centre of a spherical source, and the plane, being in a distance r from the centre, it is possible to derive relations between the area under the photometric curve and the radioisotope concentration or particle diameter. These relations have been verifyed experimentally using spherical ion-exchange resin particles loaded with various amounts of 141Ce
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Journal Article
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BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CERIUM ISOTOPES, CHEMICAL ANALYSIS, DAYS LIVING RADIOISOTOPES, EVEN-ODD NUCLEI, INTERMEDIATE MASS NUCLEI, ION EXCHANGE MATERIALS, ISOTOPES, MATERIALS, NUCLEI, ORGANIC COMPOUNDS, ORGANIC POLYMERS, POLYMERS, RADIOISOTOPES, RARE EARTH NUCLEI, SIZE
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AbstractAbstract
[en] The possibility of a quantitative extraction of thorium from chloride solutions of lanthanide concentrates with TBP and D2EPH solution in hexane has been investigated. The studies have been performed on standard solutions. The influence of various parameters on extraction and determination of thorium has been estimated. (author)
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Journal Article
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Numerical Data
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Materials Science; v. 3(1-2); p. 65-66
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AbstractAbstract
[en] A review of literature on the analysis of lanthanides performed by means of UV and IR absorption spectrophotometry, luminescence, spectral emission analysis, atomic absorption, mass spectrography and spectrometry as well as by ion exchange chromatography is given. It has been found that in direct and simultaneous determination of many lanthanides occuring over a wide concentration range the most precise results are obtained by the mass spectrography and ion exchange chromatography with fluorescent indicators. (author)
Original Title
Niektore aspekty chemii analitycznej pierwiastkow ziem rzadkich
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3. national symposium on rare earth elements and chemical metallurgy; Karpacz, Poland; 3 - 13 Jun 1974; 58 refs.
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Journal Article
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Conference
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Pr. Nauk. Inst. Chem. Nieorg. Metal. Pierwiastkow Rzadkich Politech. Wroclaw; (no.9); p. 17-35
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AbstractAbstract
No abstract available
Original Title
Abiogene Synthese von 14C und35S markiertem Methionin
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Journal Article
Journal
Radiochemical and Radioanalytical Letters; v. 4(3); p. 131-136
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Kowalczyk, J.
Materials of 48. Scientific Assembly of Polish Chemical Society and Association of Engineers and Technicians of Chemical2005
Materials of 48. Scientific Assembly of Polish Chemical Society and Association of Engineers and Technicians of Chemical2005
AbstractAbstract
No abstract available
Original Title
Otrzymywanie czystego i domieszkowanego samarem CeO2 - nanowymiarowego homogennego katalizatora spalania paliw plynnych
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Source
Polskie Towarzystwo Chemiczne, Oddzial w Poznaniu (Poland); Uniwersytet im. Adama Mickiewicza, Poznan (Poland); Politechnika Poznanska, Poznan (Poland); Instytut Chemii Bioorganicznej, PAN, Poznan (Poland); Akademia Ekonomiczna, Poznan (Poland); [p. S1-S13, W,K,P in each of S groups]; 2005; p. S9-P22; 48. Scientific Assembly of Polish Chemical Society and Association of Engineers and Technicians of Chemical Industry; 47. Zjazd Naukowy Polskiego Towarzystwa Chemicznego i Stowarzyszenia Inzynierow i Technikow Przemyslu Chemicznego; Poznan (Poland); 18-22 Sep 2005; Available at Polskie Towarzystwo Chemiczne, ul. Freta 16, Warsaw (PL); 4 refs
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Miscellaneous
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Conference
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Kowalczyk, J.
Materials of 48. Scientific Assembly of Polish Chemical Society and Association of Engineers and Technicians of Chemical2005
Materials of 48. Scientific Assembly of Polish Chemical Society and Association of Engineers and Technicians of Chemical2005
AbstractAbstract
No abstract available
Original Title
Otrzymywanie czystego i domieszkowanego samarem CeO2 - nanowymiarowego, homogenicznego katalizatora spalania paliw plynnych
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Source
Polskie Towarzystwo Chemiczne, Oddzial w Poznaniu (Poland); Uniwersytet im. Adama Mickiewicza, Poznan (Poland); Politechnika Poznanska, Poznan (Poland); Instytut Chemii Bioorganicznej, PAN, Poznan (Poland); Akademia Ekonomiczna, Poznan (Poland); [p. S1-S13, W,K,P in each of S groups]; 2005; p. S5-P29; 48. Scientific Assembly of Polish Chemical Society and Association of Engineers and Technicians of Chemical Industry; 47. Zjazd Naukowy Polskiego Towarzystwa Chemicznego i Stowarzyszenia Inzynierow i Technikow Przemyslu Chemicznego; Poznan (Poland); 18-22 Sep 2005; Available at Polskie Towarzystwo Chemiczne, ul. Freta 16, Warsaw (PL); 4 refs
Record Type
Miscellaneous
Literature Type
Conference
Country of publication
ALLOYS, CERIUM COMPOUNDS, CHALCOGENIDES, CHEMICAL REACTIONS, COHERENT SCATTERING, DIFFRACTION, DISPERSIONS, FUELS, MATERIALS, MICROSTRUCTURE, MIXTURES, OXIDATION, OXIDES, OXYGEN COMPOUNDS, RARE EARTH ADDITIONS, RARE EARTH ALLOYS, RARE EARTH COMPOUNDS, SAMARIUM ALLOYS, SCATTERING, SIZE, THERMOCHEMICAL PROCESSES
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AbstractAbstract
No abstract available
Original Title
Kinetyka reakcji rodnikowych przebiegajacych z udzialem freonow w fazie gazowej
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Source
Instytut Niskich Temperatur i Badan Strukturalnych im. W. Trzebiatowskiego PAN, Wroclaw (Poland); Fundacja Badan Radiacyjnych, Lodz (Poland); Komisja Chemii Jadrowej i Radiacyjnej, Panstwowa Agencja Atomistyki, Warsaw (Poland); Polskie Towarzystwo Badan Radiacyjnych, Oddzial Wroclawski, Wroclaw (Poland); Wydzial Chemii, Uniwersytet Wroclawski, Wroclaw (Poland); [C1]-[C15] and [P1]-[P20] p; 1999; p. P.4; 2. Symposium on Radiation Chemistry and Technique; 2. Sympozjum Chemii i Techniki Radiacyjnej; Ladek Zdroj (Poland); 20-23 Sep 1999; Available at Instytut Niskich Temperatur i Badan Strukturalnych im. W. Trzebiatowskiego PAN, ul. Okolna 2, 50-422 Wroclaw (PL)
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Miscellaneous
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Conference
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AbstractAbstract
No abstract available
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Gallagher, B.J. (ed.); p. 72-74; 1974; Limnetics, Inc; Milwaukee; Symposium on energy production and thermal effects; Oak Brook, Illinois, USA; 10 Sep 1973
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Book
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Conference
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Jowko, A.; Wnorowski, K.; Kowalczyk, J.; Wojciechowski, K., E-mail: jowko@ap.siedlce.pl2001
AbstractAbstract
[en] The gaseous mixtures of Ar-H2O were electron pulse (12 ns) irradiated and formation/decay kinetics of the hydroxyl radicals was studied using time-resolved emission spectroscopy. The quenching rate constants for both excited argon atoms (Ar*) and OH(2Σ+) radicals were found in good agreement with the literature values. The rate constants k1a=8.1±0.4x10-10 cm3 s-1 and k5=7.61±0.28x10-10 cm3 s-1 were determined for the first time. The very fast termolecular process Ar*+Ar+H2O→products with k=1.8±1.4x10-29 cm6 s-1 was demonstrated to occur and must be included into the reaction mechanism
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Source
S0969806X00004291; Copyright (c) 2001 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: Austria
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Journal Article
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