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Vela-Peréz I, Ota F, Mhamdi A, Tamura Y, Rist J, Melzer N, Uerken S, Nalin G, Anders N, You D, Kircher M, Janke C, Waitz M, Trinter F, Guillemin R, Piancastelli MN, Simon M, Davis VT, Williams JB, Dörner R, Hatada K, Yamazaki K, Fehre K, Demekhin PV, Ueda K, Schöffler MS, Jahnke T. High-energy molecular-frame photoelectron angular distributions: a molecular bond-length ruler. Phys Chem Chem Phys 2023; 25:13784-13791. [PMID: 37159272 DOI: 10.1039/d2cp05942h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We present a study on molecular-frame photoelectron angular distributions (MFPADs) of small molecules using circularly polarized synchrotron light. We find that the main forward-scattering peaks of the MFPADs are slightly tilted with respect to the molecular axis. This tilt angle is directly connected to the molecular bond length by a simple, universal formula. We apply the derived formula to several examples of MFPADs of C 1s and O 1s photoelectrons of CO, which have been measured experimentally or obtained by means of ab initio modeling. In addition, we discuss the influence of the back-scattering contribution that is superimposed over the analyzed forward-scattering peak in the case of homo-nuclear diatomic molecules such as N2.
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Affiliation(s)
- I Vela-Peréz
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - F Ota
- Department of Physics, University of Toyama, Toyama 930-8555, Gofuku 3190, Japan
| | - A Mhamdi
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany.
| | - Y Tamura
- Department of Physics, University of Toyama, Toyama 930-8555, Gofuku 3190, Japan
| | - J Rist
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - N Melzer
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - S Uerken
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - G Nalin
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - N Anders
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - D You
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - M Kircher
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - C Janke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M Waitz
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - F Trinter
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
- Molecular Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
| | - R Guillemin
- Sorbonne Université CNRS, Laboratoire de Chimie Physique-Matiere et Rayonnement, LCPMR, F-75005, Paris, France
| | - M N Piancastelli
- Sorbonne Université CNRS, Laboratoire de Chimie Physique-Matiere et Rayonnement, LCPMR, F-75005, Paris, France
| | - M Simon
- Sorbonne Université CNRS, Laboratoire de Chimie Physique-Matiere et Rayonnement, LCPMR, F-75005, Paris, France
| | - V T Davis
- Department of Physics, University of Nevada, Reno, Nevada 89557, USA
| | - J B Williams
- Department of Physics, University of Nevada, Reno, Nevada 89557, USA
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - K Hatada
- Department of Physics, University of Toyama, Toyama 930-8555, Gofuku 3190, Japan
| | - K Yamazaki
- RIKEN Center for Advanced Photonics, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - K Fehre
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - Ph V Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany.
| | - K Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
- Department of Chemistry, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - T Jahnke
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany.
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Mhamdi A, Rist J, Aslitürk D, Weller M, Melzer N, Trabert D, Kircher M, Vela-Pérez I, Siebert J, Eckart S, Grundmann S, Kastirke G, Waitz M, Khan A, Schöffler MS, Trinter F, Dörner R, Jahnke T, Demekhin PV. Breakdown of the Spectator Concept in Low-Electron-Energy Resonant Decay Processes. Phys Rev Lett 2018; 121:243002. [PMID: 30608769 DOI: 10.1103/physrevlett.121.243002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Indexed: 06/09/2023]
Abstract
We suggest that low-energy electrons, released by resonant decay processes, experience substantial scattering on the electron density of excited electrons, which remain a spectator during the decay. As a result, the angular emission distribution is altered significantly. This effect is expected to be a common feature of low-energy secondary electron emission. In this Letter, we exemplify our idea by examining the spectator resonant interatomic Coulombic decay of Ne dimers. Our theoretical predictions are confirmed by a corresponding coincidence experiment.
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Affiliation(s)
- A Mhamdi
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - J Rist
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - D Aslitürk
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - M Weller
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - N Melzer
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - D Trabert
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - M Kircher
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - I Vela-Pérez
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - J Siebert
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - S Eckart
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - S Grundmann
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - G Kastirke
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - M Waitz
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - A Khan
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - M S Schöffler
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - F Trinter
- Deutsches Elektronen-Synchrotron (DESY), FS-PE, Notkestrasse 85, 22607 Hamburg, Germany
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Molecular Physics, Faradayweg 4, 14195 Berlin, Germany
| | - R Dörner
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - T Jahnke
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - Ph V Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
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Begall M, Mhamdi A, Mitsos A. Kopplung von CFD und Kinetik zur ortsaufgelösten Modellierung von Reaktionen in kontinuierlichen Millireaktoren. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- M. Begall
- RWTH Aachen University; Aachener Verfahrenstechnik, Systemverfahrenstechnik; Forckenbeckstraße 51 52074 Aachen Deutschland
| | - A. Mhamdi
- RWTH Aachen University; Aachener Verfahrenstechnik, Systemverfahrenstechnik; Forckenbeckstraße 51 52074 Aachen Deutschland
| | - A. Mitsos
- RWTH Aachen University; Aachener Verfahrenstechnik, Systemverfahrenstechnik; Forckenbeckstraße 51 52074 Aachen Deutschland
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Kappatou C, Mhamdi A, Quiroga Campano A, Mantalaris A, Mitsos A. Modellbasierte dynamische Optimierung zur Intensivierung der Produktionsprozesse monoklonaler Antikörper. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- C. D. Kappatou
- RWTH Aachen University; Aachener Verfahrenstechnik - Process Systems Engineering; Forckenbeckstraße 51 52074 Aachen Deutschland
| | - A. Mhamdi
- RWTH Aachen University; Aachener Verfahrenstechnik - Process Systems Engineering; Forckenbeckstraße 51 52074 Aachen Deutschland
| | - A. Quiroga Campano
- Imperial College London; Department of Chemical Engineering - Centre for Process Systems Engineering; Imperial College London Address South Kensington Campus SW7 2AZ London Vereinigtes Königreich
| | - A. Mantalaris
- Imperial College London; Department of Chemical Engineering - Centre for Process Systems Engineering; Imperial College London Address South Kensington Campus SW7 2AZ London Vereinigtes Königreich
| | - A. Mitsos
- RWTH Aachen University; Aachener Verfahrenstechnik - Process Systems Engineering; Forckenbeckstraße 51 52074 Aachen Deutschland
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Bandi P, Modigell M, Groß S, Reusken A, Zhang L, Heng Y, Marquardt W, Mhamdi A. On reduced modeling of mass transport in wavy falling films. AIChE J 2018. [DOI: 10.1002/aic.16065] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- P. Bandi
- Institute for Mechanical Process Engineering (AVT.MVT), RWTH Aachen University; Aachen 52064 Germany
| | - M. Modigell
- Institute for Mechanical Process Engineering (AVT.MVT), RWTH Aachen University; Aachen 52064 Germany
| | - S. Groß
- Chair for Numerical Mathematics, RWTH Aachen University; Aachen 52062 Germany
| | - A. Reusken
- Chair for Numerical Mathematics, RWTH Aachen University; Aachen 52062 Germany
| | - L. Zhang
- Chair for Numerical Mathematics, RWTH Aachen University; Aachen 52062 Germany
| | - Y. Heng
- School of Chemical Engineering and Technology; Sun Yat-sen University; Guangzhou 510275 China
| | - W. Marquardt
- Institute for Process Systems Engineering (AVT.SVT), RWTH Aachen University; Aachen 52064 Germany
| | - A. Mhamdi
- Institute for Process Systems Engineering (AVT.SVT), RWTH Aachen University; Aachen 52064 Germany
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Sann H, Schober C, Mhamdi A, Trinter F, Müller C, Semenov SK, Stener M, Waitz M, Bauer T, Wallauer R, Goihl C, Titze J, Afaneh F, Schmidt LPH, Kunitski M, Schmidt-Böcking H, Demekhin PV, Cherepkov NA, Schöffler MS, Jahnke T, Dörner R. Delocalization of a Vacancy across Two Neon Atoms Bound by the van der Waals Force. Phys Rev Lett 2016; 117:263001. [PMID: 28059541 DOI: 10.1103/physrevlett.117.263001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Indexed: 06/06/2023]
Abstract
We experimentally study 2p photoionization of neon dimers (Ne_{2}) at a photon energy of hν=36.56 eV. By postselection of ionization events which lead to a dissociation into Ne^{+}+Ne we obtain the photoelectron angular emission distribution in the molecular frame. This distribution is symmetric with respect to the direction of the charged vs neutral fragment. It shows an inverted Cohen-Fano double slit interference pattern of two spherical waves emitted coherently but with opposite phases from the two atoms of the dimer.
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Affiliation(s)
- H Sann
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - C Schober
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - A Mhamdi
- Institut für Physik und Center for Interdisciplinary Nanostructure Science and Technology, Universität Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - F Trinter
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - C Müller
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - S K Semenov
- State University of Aerospace Instrumentation, 190000, St. Petersburg, Russia
| | - M Stener
- Dipartimento di Scienze Chimiche, Universita di Trieste, Via L. Giorgieri 1, I-34127 Trieste, Italy
| | - M Waitz
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - T Bauer
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - R Wallauer
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - C Goihl
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - J Titze
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - F Afaneh
- Physics Department, The Hashemite University, Zarqa 13133, Jordan
| | - L Ph H Schmidt
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M Kunitski
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - H Schmidt-Böcking
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - Ph V Demekhin
- Institut für Physik und Center for Interdisciplinary Nanostructure Science and Technology, Universität Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - N A Cherepkov
- State University of Aerospace Instrumentation, 190000, St. Petersburg, Russia
| | - M S Schöffler
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
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Mitsos A, Begall M, Krieger A, Recker S, Herbstritt F, Sengen L, Mhamdi A. Numerische Strömungssimulation zur Charakterisierung kontinuierlicher Millireaktoren für Polymerspezialitäten. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bejaoui A, Dhahri K, Amri A, Mhamdi A, Gharbi R. Rôle du médecin de travail dans la prévention des risques professionnels dans le secteur de BTP. ARCH MAL PROF ENVIRO 2012. [DOI: 10.1016/j.admp.2012.03.672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mhamdi A, Ben Amor A, Amri A, Youssef I, Ladhari N, Gharbi R. Ergonomic evaluation of a situation of coexposure to solvents and noise in a printing of flexible packaging. Work 2012; 41 Suppl 1:496-502. [PMID: 22316772 DOI: 10.3233/wor-2012-0202-496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The purpose of this paper is to present an ergonomic evaluation of a situation of co-exposure to solvents and noise in a flexible packaging printer. We discuss how such an approach carried out in the field of printing industry work has made it possible to highlight serious shortcomings in the effectiveness of the prevention actions that are supposed to protect workers from chemicals risks and noise. The ergonomic analysis identified a strain working conditions. Indeed, some jobs expose to noise and toxic risk. Lamination operations, winding and cutting are purveyors of noise. Some physical and spatial factors contribute to amplify the toxic risk. The not wearing of personal protective equipment (PPE) by the operators maybe explained by the fact that it doesn't any possibility to do "otherwise". Indeed, operators adopt a compromise to achieve the objectives of production to the detriment of their health and safety. These constraints are causing gene and psychosocial factors. The interviews revealed a state of psychosis in the workshop, which was accentuated by the reclassification of an operator which has created a climate of panic and anxiety especially for older operators who have more than 20 years exposed to handling of toxic and more exposure to high noise level.
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Affiliation(s)
- A Mhamdi
- Laboratoire de Toxicologie, d'Ergonomie et d'Environnement Professionnel, Faculté de Médecine de Tunis-Université Tunis ElManar, 15 Rue Djebel Lakhdar La Rabta, Tunis, Tunisia.
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Johannink M, Krieger A, Mhamdi A, Marquardt W. Rigorose Modellierung von Elektromembranverfahren. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Skiborowski M, Krämer K, Mhamdi A, Marquardt W. Numerische Optimierung von RO-MED-Anlagen zur Meerwasserentsalzung. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Brendel M, Mhamdi A, Bonvin D, Marquardt W. Ein schrittweiser Identifikationsansatz zur Modellierung kinetischer Phänomene. CHEM-ING-TECH 2003. [DOI: 10.1002/cite.200390199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Binder T, Flehming F, Mhamdi A, Marquardt W. Prozessdatenvalidierung: Stand der Technik und Entwicklungstrends. CHEM-ING-TECH 2000. [DOI: 10.1002/1522-2640(200009)72:9<1032::aid-cite10322>3.0.co;2-p] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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