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1. Experiences in the Teaching of the DataFlow Paradigm: Lessons Learned

Author

N. Trifunovic, M. Kotlar, O. Andric, P. Trifunovic, S. Stojanovic, M. Cvetanovic, Z. Radivojevic, M. Punt, N. Korolija, and V. Milutinovic

Subjects
Big data, Dataflow, Paradigm shift, Sea of gates, Teaching, Telecommunication, TK5101-6720
Abstract

The DataFlow paradigm has been existing for a long time, but good enough enabling technologies have been made available only very recently. The teaching of a different from the mainstream paradigm, such as the DataFlow paradigm, encounters a few problems. If a new paradigm is presented among experienced professionals, the presentation is often received with resistance. If a new paradigm is presented before students, the presentation is always received with enthusiasm, especially if tools and libraries that support the paradigm do exist. In order to overcome the problem with introducing the new paradigm, a series of courses was organized for Universities in the USA and Europe, to teach the DataFlow paradigm, using the Maxeler approach as the baseline for practical work. The course is organized in three different levels: (A) full-hour presentation that includes introducing the programming model with hands-on examples, which is most appropriate for research groups at Universities (B) a certified full-day short-course that students could use as an extension to diploma, (C) full-semester course for credits that is part of graduation requirement. This paper discusses different methods and their results, which could be used in order to efficiently introduce any different from the mainstream paradigm. The results presented in this paper are for 10 universities in the group A, 10 in the group B, and 10 in the group C. Where appropriate, the findings are backed with statistics data.

Published
2018
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2. A survey and evaluation of free and open source simulators suitable for teaching courses in wireless sensor networks

Author

M. Cvetanovic, Djordje Pesic, and Z. Radivojevic

Subjects
Multimedia, Computer science, business.industry, Software as a service, Software development, 020206 networking & telecommunications, 02 engineering and technology, Software distribution, computer.software_genre, Software metric, World Wide Web, Software framework, Software construction, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Software system, business, computer
Abstract

This paper attempts to give a survey of some free software tools for wireless sensor networks. It targets teachers and students who might have the need for education in this area. As a first stage in creating this survey, a process of software collection is presented. First collection step is search through the Shanghai list for the first 50 universities. From these universities, available information about used software for wsn-related courses is collected. Additionally, other wsn software surveys are considered. Then, only free, open source and available software are kept, because they are the easiest for students to get it. Then evaluation based on topics coverage and software features is done. Topics are selected from IEEE Curriculum guidelines, while features give emphasis on practical usage from user aspect. Selected topics are embedded systems, computer networks, operating system and system resource management. Features used in the evaluation are support for GUI and command line, programming language learning overhead, ease of installation, extensibility, and platform portability. As a result, following software tools are described: TinyOS, Prowler, Riot, Castalia, Avrora, Shawn, TRMSim-WSN, and Shox.

Published
2017

3. Neutron yields from a thick 13C target irradiated by 30 MeV protons

Author

V. G. Lyapin, L. Stroe, Z. Radivojevic, D. N. Vakhtin, F. Brandolini, Peter Dendooven, L.B. Tecchio, Alberto Andrighetto, and W. H. Trzaska

Subjects
Physics, Nuclear and High Energy Physics, Proton, Nuclear Theory, Total neutron, Spectral line, Deuterium, Yield (chemistry), Neutron, Irradiation, Atomic physics, Angular anisotropy, Nuclear Experiment, Instrumentation
Abstract

Total neutron yields resulting from the proton bombardment of a thick 13 C target have been measured for 30 MeV protons. Absolute intensities, angular distributions and energy spectra of neutrons have been obtained by the time-of-flight technique where the detectors provided continuous coverage from 0° to 120°. Resonances have been found, some of which can be attributed to known states in 14 N. A total yield of 0.022(3) n/p was observed with a slight angular anisotropy towards forward angles. The measured yields are compared to the neutron yields produced by using deuterons on thick 12 C and 9 Be targets.

Published
2002

4. Beta-delayed neutron decay of 33Na

Author

M. Ramdhane, Ari Jokinen, Ph. Dessagne, G. Le Scornet, Z. Radivojevic, Wladyslaw Henryk Trzaska, S. Nummela, F. Nowacki, E. Caurier, Juha Äystö, S. Courtin, Markku Oinonen, Joakim Cederkäll, A. Knipper, P. Baumann, G. Walter, V. G. Lyapin, E. Poirier, and Ch. Miehé

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Neutron stimulated emission computed tomography, Analytical chemistry, Half-life, Scintillator, 01 natural sciences, Spectral line, Nuclear physics, Beta (plasma physics), 0103 physical sciences, Neutron, 010306 general physics, Instrumentation, Delayed neutron
Abstract

Beta-delayed neutron decay of 33 Na has been studied using the on-line mass separator ISOLDE. The delayed neutron spectra were measured by time-of-flight technique using fast scintillators. Two main neutron groups at 800(60) and 1020(80) keV were assigned to the 33 Na decay, showing evidence for strong feeding of states at about 4 MeV in 33 Mg. By simultaneous β–γ–n counting the delayed neutron emission probabilities P 1n =47(6)% and P 2n =13(3)% were determined. The half-life value for 33 Na, T 1/2 =8.0(3) ms , was measured by three different techniques, one employing identifying gamma transitions and two employing beta and neutron counting.

Published
2002

5. The ALICE vertex detector: Focus on the micro-strip layers

Author

Z. Radivojevic, I. Tymchuk, Rinaldo Rui, Paolo Camerini, J. Aaltonen, D. Bonnet, Mathias Osterberg, A.N. Sokolov, O. Clausse, E. Fragiacomo, Giacomo Vito Margagliotti, I. Rachevskaia, Markku Oinonen, J.R. Lutz, N. Grion, C. Kuhn, L. Bosisio, V. Zeter, F. Littel, F. Agnese, Henri Seppänen, S. Piano, Paulus Gerardus Kuijer, C.J. Oskamp, S. Nikkinen, C. Wabnitz, V. Antonova, Gennady Zinovjev, I. Kassamakov, O. Borysov, M. Imhoff, M.H Sigward, S. Plumeri, R. Kluit, Gerardus Nooren, V.N. Borshchov, M. Protsenko, A.P. de Haas, A. Listratenko, Giacomo Contin, F. Faleschini, A. van den Brink, Marco Bregant, J. Kostyshin, Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), ALICE, A.A. V.V., M., Bregant, O., Borysov, L., Bosisio, Camerini, Paolo, Contin, Giacomo, F., Faleschini, E., Fragiacomo, N., Grion, Margagliotti, Giacomo, S., Piano, I., Rachevskaia, Rui, Rinaldo, A. P., DE HAAS, R., Kluit, P. G., Kuijer, G. J. L., Nooren, C. J., Oskamp, A. N., Sokolov, A., VAN DEN BRINK, F., Agnese, D., Bonnet, O., Clausse, M., Imhoff, C., Kuhn, F., Littel, J. R., Lutz, S., Plumeri, M. H., Sigward, C., Wabnitz, V., Zeter, M., Oinonen, J., Aaltonen, I., Kassamakov, S., Nikkinen, Z., Radivojevic, I, H., Seppnen, M., Sterberg, V., Antonova, V., Borshchov, A., Listratenko, M., Protsenko, J., Kostyshin, I. TYMCHUK AND G., Zinovjev, and National Institute for Nuclear Physics (INFN)

Subjects
Nuclear and High Energy Physics, Silicon, Physics::Instrumentation and Detectors, chemistry.chemical_element, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, ALICE, 0103 physical sciences, ALICE ITS, 010306 general physics, Nuclear Experiment, Instrumentation, Physics, Large Hadron Collider, 010308 nuclear & particles physics, business.industry, Detector, Tracking system, ALICE, microstrip, chemistry, Physics::Accelerator Physics, High Energy Physics::Experiment, Vertex detector, ALICE (propellant), Focus (optics), business, microstrip, 29.40.Wk, 29.40.Gx, Double-sided AC silicon strip detector
Abstract

The ALICE experiment, which is being installed at the Large Hadron Collider at CERN, is designed to operate in a high-track density environment which is typical of relativistic heavy ions physics. This paper reports the main characteristics of the Inner Tracking System (ITS) of ALICE and describes the Silicon Strip Detector, which forms the two outermost layers of the ITS.

Published
2005

6. Assembly and validation of the ALICE silicon microstrip detector

Author

Paolo Camerini, Giacomo Contin, S.K. Kiprich, A. van den Brink, F. Agnese, I. Tymchuk, F. Faleschini, Paulus Gerardus Kuijer, O. Borysov, M. Imhoff, C. Kuhn, F. Littel, S. Plumeri, L. Bosisio, F. Benedosso, R. Kluit, Gerardus Nooren, A. Listratenko, C.J. Oskamp, Gennady Zinovjev, S. Piano, Serja Nikkinen, A.P. de Haas, O. Clausse, V. Antonova, V.N. Borshchov, J.R. Lutz, Giacomo Vito Margagliotti, Marco Bregant, A.N. Sokolov, E. Fragiacomo, Z. Radivojevic, Rinaldo Rui, V. Zeter, N. Grion, Mathias Osterberg, Henri Seppänen, Markku Oinonen, C. Wabnitz, I. Rachevskaia, D. Bonnet, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (INFN, Sezione di Trieste), National Institute for Nuclear Physics (INFN), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), ALICE, Istituto Nazionale di Fisica Nucleare (INFN), M., Bregant, O., Borysov, L., Bosisio, Camerini, Paolo, Contin, Giacomo, F., Faleschini, E., Fragiacomo, N., Grion, Margagliotti, Giacomo, S., Piano, I., Rachevskaya, Rui, Rinaldo, F., Benedosso, A. P., DE HAAS, R., Kluit, P. G., Kuijer, G. J. L., Nooren, C. J., Oskamp, A. N., Sokolov, A., VAN DEN BRINK, F., Agnese, D., Bonnet, O., Clausse, M., Imhoff, C., Kuhn, F., Littel, J. R., Lutz, S., Plumeri, C., Wabnitz, V., Zeter, M., Oinonen, S., Nikkinen, Z., Radivojevic, H., Seppanen, M., Osterberg, V., Antonova, V., Borshchov, S. K., Kiprich, A., Listratenko, I., Tymchuk, and G., Zinovev

Subjects
Physics, Nuclear and High Energy Physics, Silicon, 010308 nuclear & particles physics, business.industry, Detector, Electrical engineering, chemistry.chemical_element, Tracking system, Double-sided, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, AC silicon strip detector, chemistry, 0103 physical sciences, ALICE (propellant), Connection (algebraic framework), ALICE ITS, 010306 general physics, business, Instrumentation, 29.40.Wk, 29.40.Gx, Silicon microstrip detectors
Abstract

The two outermost layers of the ALICE Inner Tracking System consist of 1698 double-sided silicon microstrip modules, which form the Silicon Strip Detector (SSD). The SSD modules offer several novelties, which include the use of TAB-bonding technique for the connection of the front-end electronic via thin aluminium-polyimide cables. The module as well as its parts will be described and the assembling procedure illustrated.

Published
2005

7. Assembly and validation of the SSD silicon microstrip detector of ALICE

Author

F. Littel, Giacomo Contin, F. Faleschini, C.J. Oskamp, Henri Seppänen, I. Rachevskaia, J.R. Lutz, A. Listratenko, A.N. Sokolov, V. Zeter, S. Plumeri, Paolo Camerini, O. Borysov, Giacomo Vito Margagliotti, I. Kassamakov, C. Wabnitz, M.H. Sigward, Gennady Zinovjev, V.N. Borshchov, N. Grion, J. Aaltonen, D. Bonnet, S. Nikkinen, J. Kostyshin, Paulus Gerardus Kuijer, A. van den Brink, F. Agnese, Marco Bregant, M. Imhoff, L. Bosisio, I. Tymchuk, S. Piano, Z. Radivojevic, Rinaldo Rui, O. Clausse, R. Kluit, Gerardus Nooren, Markku Oinonen, M. Protsenko, A.P. de Haas, V. Antonova, E. Fragiacomo, Mathias Osterberg, C. Kuhn, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (INFN, Sezione di Trieste), National Institute for Nuclear Physics (INFN), Dipartimento di Fisica [Trieste], Università degli studi di Trieste, Utrecht University [Utrecht], National Institute for Subatomic Physics Nikhef [Amsterdam] (NIKHEF), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Helsinki Institute of Physics (HIP), University of Helsinki, Electronics Research Unit, Department of Physical Sciences (ELECTRONICS RESEARCH UNIT, DEPARTMENT OF PHYSICAL SCIENCES), NOKIA Research Center, Nokia, Scientific and Technological Research Institute of Instrument Engeneering (SCIENTIFIC AND TECHNOLOGICAL RESEARCH INSTITUTE OF INSTRUMENT ENGENEERING), Scientific and Technological Research Institute of Instrument Engeneering, Department of High Energy Density Physics, Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine (NASU)-National Academy of Sciences of Ukraine (NASU), ALICE, M., Bregant, O., Borysov, Bosisio, Luciano, Camerini, Paolo, Contin, Giacomo, F., Faleschini, E., Fragiacomo, N., Grion, Margagliotti, Giacomo, S., Piano, I., Rachevskaia, Rui, Rinaldo, A. P., DE HAAS, R., Kluit, P. G., Kuijer, G. J. L., Nooren, C. J., Oskamp, A. N., Sokolov, A., VAN DEN BRINK, F., Agnese, D., Bonnet, O., Clausse, M., Imhoff, C., Kuhn, F., Littel, J. R., Lutz, S., Plumeri, M. H., Sigward, C., Wabnitz, V., Zeter, M., Oinonen, J., Aaltonen, I., Kassamakov, S., Nikkinen, Z., Radivojevic, H., Seppanen, M., Osterberg, V., Antonova, V., Borshchov, A., Listratenko, M., Protsenko, J., Kostyshin, I., Tymchuk, G., Zinovje, Istituto Nazionale di Fisica Nucleare (INFN), and National Institute for Subatomic Physics [Amsterdam] (NIKHEF)

Subjects
Physics, Nuclear and High Energy Physics, Silicon, 010308 nuclear & particles physics, business.industry, Detector, Electrical engineering, chemistry.chemical_element, Tracking system, double-sided AC silicon strip detector, Test protocol used, 01 natural sciences, Electrical connection, chemistry, 0103 physical sciences, Electronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ALICE (propellant), ALICE ITS, 010306 general physics, business, Instrumentation, 29.40.Wk, 29.40.Gx, Silicon microstrip detectors
Abstract

The Silicon Strip Detector (SSD) forms the two outermost layers of the Inner Tracking System (ITS) of ALICE. The SSD detector consists of 1698 double-sided silicon microstrip modules. The electrical connection between silicon sensor and front-end electronics is made via TAB-bonded aluminium polyimide cables (chip-cables). The module assembly is challenging because of the module geometry and the use of chip-cables. This article describes the assembly procedure and the test protocol used.

Published
2005

8. Fragment mass distribution in superasymmetric region in proton-induced fission of U and Th

Author

O. I. Ossetrov, W. H. Trzaska, A.V. Evsenin, V. A. Rubchenya, G. P. Tiourine, D. N. Vakhtin, Andrey Kuznetsov, Juha Äystö, Z. Radivojevic, M. Mutterer, I. D. Alkhazov, A. A. Alexandrov, S. V. Khlebnikov, V. G. Lyapin, Yu. E. Penionzhkevich, and Yu. G. Sobolev

Subjects
Nuclear physics, Physics, Cold fission, Cluster decay, Mass distribution, Proton, Fission, Fragment (computer graphics), Nuclear Theory, Atomic physics, Nuclear Experiment, Neutron multiplicity, Excitation
Abstract

Fission fragment mass distributions down to super-asymmetric mass region and both pre- and post-scission neutron multiplicity for238U(p,fission) reaction atEp = 20, 35, 50, 60 MeV and for232Th(p, fission) reaction atEp = 50, 60 MeV were measured using HENDES set-up. The results indicate enhancement for super-asymmetric mass division at intermediate excitation energies.

Published
1998

9. Aluminium microcable technology for the ALICE silicon strip detector: a satus report

Author

V. BORSHCHOV, A. BOIKO, S. KIPRICH, L. KAUROVA, S. LISTRATENKO, G. PROTSAY, A. REZNIK, V. STARKOV, A. P. DE HAAS, A. VAN DEN BRINK, P. KUIJER, G. J. L. NOOREN, C. J. OSKAMP, D. BONNET, J. P. COFFIN, C. GOJAK, M. GUEDON, J. R. LUTZ, M. BREGANT, L. BOSISIO, CAMERINI, Paolo, N. GRION, M. J. OINONEN, Z. RADIVOJEVIC, MARGAGLIOTTI, GIACOMO, V., Borshchov, A., Boiko, S., Kiprich, L., Kaurova, S., Listratenko, G., Protsay, A., Reznik, V., Starkov, A. P., DE HAAS, A., VAN DEN BRINK, P., Kuijer, G. J. L., Nooren, C. J., Oskamp, D., Bonnet, J. P., Coffin, C., Gojak, M., Guedon, J. R., Lutz, M., Bregant, L., Bosisio, Camerini, Paolo, Margagliotti, Giacomo, N., Grion, M. J., Oinonen, and Z., Radivojevic

Subjects
Detectors and Experimental Techniques
Published
2002

10. Electromigration lifetime prediction of RF-PA transistors

Author

W. Peng and Z. Radivojevic

Subjects
LDMOS, Very-large-scale integration, Materials science, business.industry, Gold plating, Transistor, Electromigration, law.invention, Reliability (semiconductor), CMOS, law, Electronic engineering, Optoelectronics, Power MOSFET, business
Abstract

This work represents reliability investigation of LDMOS gold plating RF-PA transistors implemented in a base-station environment. Purpose of this work is to obtain knowledge for electromigration reliability assessment of the RF-PA and create an adequate method to predict the lifetime of Au/Si thin stripe implemented in structure of the RF-PA. Therefore, a procedure how to evaluate electromigration failure risks by combining microstructural analysis, lifetime acceleration experiments and adequate modelling is described.

Published
2004

11. Beta-delayed neutron spectroscopy by the TOF technique at IGISOL: 95Rb as a test case

Author

G. Walter, Peter Dendooven, Z. Radivojevic, S. Nummela, Ari Jokinen, Juha Äystö, W. H. Trzaska, and V. G. Lyapin

Subjects
Materials science, Neutron emission, Astrophysics::High Energy Astrophysical Phenomena, Excited state, Nuclear Theory, Binding energy, Neutron, Nuclide, Atomic physics, Nuclear Experiment, Spectroscopy, Delayed neutron, Neutron spectroscopy
Abstract

Nuclides with a large neutron excess have high Q β values, making it possible to extract the β-strength function (SF) over a large energy range using β-decay spectroscopy. However, because of the low neutron binding energies, neutron emission from excited states will occur and β-delayed neutron spectroscopy is required to determine the SF over the full Q β window.

Published
2003

12. A step further in the A = 33−35, N ≃ 21, island of inversion: the structure of 33Mg

Author

S. Courtin, Ch. Miehé, Ari Jokinen, G. Walter, M. Ramdhane, Z. Radivojevic, A. Knipper, W. H. Trzaska, Juha Äystö, P. Baumann, F. Nowacki, Joakim Cederkäll, Ph. Dessagne, E. Caurier, Markku Oinonen, G. Le Scornet, L. G. Lyapin, E. Poirier, and S. Nummela

Subjects
Physics, Island of inversion, Nuclear Theory, Structure (category theory), Geometry, Deformation (meteorology), Ground state
Abstract

Experimental indications have been found in the seventies for the deformation of neutron-rich A ≃ 32 nuclei [1]. This could be explained by Hartree-Fock calculations, predicting deformed configurations in the ground state of nuclei in the A = 33−35, N ≃ 21 mass region. This exotic region, called the island of inversion [2], knows a renewed interest since it can be now experimentally accessible for detailed studies.

Published
2003

13. Comparing Assembler Procedures by Analyzing Sequences of Opcodes

Author

N. Pejić, M. Cvetanović, and Z. Radivojević

Subjects
assembler code analysis, sequence of instructions, software clone detection, Telecommunication, TK5101-6720
Abstract

Static analysis of executables for the purpose of comparing them can be made more difficult if the binaries are created using different compilers. In order to compensate for the noise introduced by the compilers, the arguments of the instructions are usually discarded as having a low signal-to-noise ratio. As compiler can often apply instruction reordering, some approaches only compare statistical information about the instructions, or compare their subsequences in order to measure their similarity. This paper presents an approach for estimating the similarity of procedures given in assembler form (disassembled binaries) by analyzing their sequences of opcodes. The approach first encodes the opcodes into integer values by mapping opcodes that represent similar actions into the same values, and then calculates a relative Levenshtein distance between the two sequences of integers. The proposed approach is evaluated and compared with some existing approaches, where it showed to have on average around 6% higher recall than the second-best approach.

Published
2020
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14. INVESTIGATION OF NEUTRON AND GAMMA MULTIPLICITIES IN REACTIONS WITH HEAVY IONS LEADING TO THE PRODUCTION OF SUPERHEAVY NUCLEI CLOSE TO THE ISLAND OF STABILITY

Author

Marian Jandel, M. G. Itkis, I. V. Pokrovski, F. Hanappe, I. M. Itkis, Ch. Stodel, J. Kliman, G. N. Kniajeva, A. Yu. Chizhov, V. M. Voskresenski, I. V. Korzyukov, Alain Ninane, B. J. P. Gall, Z. Radivojevic, W. H. Trzaska, G. Giardina, P. Desesquelles, A. A. Bogatchev, J. M. Gauthier, O. Dorvaux, L. Krupa, Th. Materna, G. Chubarian, St. Grevy, Jean Péter, N. Amar, Neil Rowley, V. A. Rubchenya, Yu. Ts. Oganessian, E. M. Kozulin, V. A. Ponomarenko, Ch. Schmitt, E. V. Prokhorova, L. Stuttge, N. A. Kondratiev, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Fazio G.Giardina G.Hanappe F.Imme G.Rowley N., Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Guesnon, Sandrine

Subjects
Nuclear physics, Physics, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], 010308 nuclear & particles physics, 0103 physical sciences, Neutron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Atomic physics, 010306 general physics, 01 natural sciences, Island of stability, Ion
Published
2002

15. Intruder features in the island of inversion: The case of33Mg

Author

E. Caurier, A. Knipper, G. Le Scornet, Juha Äystö, Z. Radivojevic, P. Baumann, L. G. Lyapin, Joakim Cederkäll, M. Ramdhane, P. Dessagne, F. Nowacki, Markku Oinonen, S. Nummela, Wladyslaw Henryk Trzaska, S. Courtin, Ari Jokinen, Ch. Miehé, E. Poirier, and G. Walter

Subjects
Physics, Nuclear and High Energy Physics, Isotope, 010308 nuclear & particles physics, Island of inversion, Astrophysics::High Energy Astrophysical Phenomena, Parity (physics), Neutron spectra, 01 natural sciences, Mass separation, Beta decay, Nuclear physics, 0103 physical sciences, Bound state, Level structure, Atomic physics, 010306 general physics
Abstract

The Na-33 beta decay was studied online using mass separation techniques and a first description of the level structure of the neutron-rich isotope Mg-33, with N=21, has been obtained. The experiment involved the measurement of beta-gamma, beta-gamma-gamma, and beta -n-gamma coincidences as well as neutron spectra by time-of-flight technique. The first low energy level scheme for the daughter nucleus Mg-33 is given with five bound states. Spin and parity assignments are proposed according to beta feedings and gamma -ray multipolarities, beta -strength distribution is evaluated, taking into account 1n- and 2n-emission channels and it is compared with the calculated GT strength distribution. In particular, the 1p-1h and 2p-2h excitations are shown to result in substantial contribution to the low energy configurations. Allowed beta branch to the (33)Ma g.s. [log ft = 5.27(26)] gives direct evidence for the inversion of nu (f(7/2)) and nu (d(3/2)) states. (Less)

Published
2001

16. Spectroscopy of34,35Sibyβdecay:sd−fpshell gap and single-particle states

Author

F. Nowacki, Markku Oinonen, P. Dessagne, G. Walter, Juha Äystö, Ari Jokinen, Z. Radivojevic, E. Caurier, S. Nummela, M. Ramdhane, G. Le Scornet, P. Baumann, A. Knipper, and Ch. Miehé

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Island of inversion, Shell (structure), 01 natural sciences, Beta decay, Particle decay, Internal conversion, Double beta decay, 0103 physical sciences, Atomic physics, 010306 general physics, Spectroscopy
Published
2001

17. Production of neutron-rich isotopes in fission of uranium induced by neutrons of 20 MeV average energy

Author

P. Jardin, Jussi Huikari, Ari Jokinen, Juha Äystö, A. Nieminen, C. Lau, Jean Vervier, M. G. Saint-Laurent, J. C. Wang, V. A. Rubchenya, Peter Dendooven, Heikki Penttilä, Kari Perajarvi, L. Lebreton, D. Vakhtin, V. Kolhinen, Wladyslaw Henryk Trzaska, A.C. Mueller, Antonio Villari, G. Lhersonneau, S. Nummela, Z. Radivojevic, G. Canchel, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Cold fission, Isotopes of uranium, 010308 nuclear & particles physics, Neutron emission, Isotopes of samarium, Nuclear Theory, Fission product yield, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Fast fission, Nuclear physics, Uranium-238, 0103 physical sciences, Physics::Accelerator Physics, Nuclear Experiment, 010306 general physics, Long-lived fission product
Abstract

In the context of a parameter study conducted by several laboratories for future European radioactive beam facilities based on fast-neutron induced fission, in particular for the SPIRAL-II project at GANIL, we have measured the yields of neutron-rich isotopes in the mass range of 88 to 144. These nuclei were obtained as fission products of natural uranium bombarded by neutrons of 20 MeV average energy emitted by a thick carbon target irradiated by 50 MeV deuterons. Yields have been measured using on-line mass separation with the ion-guide method. Compared with proton-induced fission at 25 MeV the magnitude of cross-sections, except for the symmetric region, is similar. Z-distributions of isobars have the same width, 0.7 charge units, but their maxima are shifted by about 0.8 charge units, favouring production of the neutron-richer isobars. Our data allow calculations of absolute cross-sections for fission of natural uranium induced by neutrons of about 20 MeV.

Published
2000

18. The [sup 34,35]Al beta decay to [sup 34,35]Si

Author

Z. Radivojevic, G. Walter, M. Ramdhane, F. Nowacki, Markku Oinonen, A. Knipper, E. Caurier, Ch. Miehé, Juha Äystö, P. Baumann, Ph. Dessagne, S. Nummela, and Ari Jokinen

Subjects
Nuclear physics, Physics, Branching fraction, Nuclear structure, Half-life, State (functional analysis), Atomic physics, Ground state, Parity (mathematics), Beta decay, Spin-½
Abstract

The 34,35Al beta decay was studied at the CERN on-line mass-separator ISOLDE by β-γ, β-γ-γ and β-n measurements. In the 34Al decay, the new data confirm the previous results and complement the level scheme in 34Si and 33Si. An intruder (2p-2h) 02+ state is proposed at 2.1 MeV in 34Si in agreement with different shell-model predictions but its decay is still unobserved. A 35Al β-decay scheme to 35Si bound and unbound states is established. The 35Al half life (41.6(22) ms) was measured with a good precision. The first 35Si level scheme including three levels at 911, 974 and 2169 keV with respectively Jπ=(3/2)−, (3/2)+ and (5/2)+ was obtained. The spin and parity values are consistent with a (5/2)+ assignment for the 35Al ground state. The value Pn=0.41(13) was also deduced. New information on the proton-neutron interaction in the (sd-fp) space is obtained.

Published
1999

19. Identity Provider Deployment Based on Container Technology

Author

M. S. Eremija, N. R. Ilić, M. Cvetanović, J. Protić, and Z. Radivojević

Subjects
Containers, Docker, Identity Federations, SAML, Single Sign-On, Telecommunication, TK5101-6720
Abstract

Identity Providers are an integral part of Identity Federations. Many different and complex technologies are needed to create an Identity Provider. In order to be able to fully utilize all the benefits of Identity Federations, adequate hardware resources are needed for Identity Provider deployment. Containers address the complexity and resources issues, while enabling faster deployment and keeping the functionalities and core concepts intact at the same time. Containers cannot be perceived as a replacement for virtual machines or bare metal servers, as they are meant to co-exist and have already found a wide range of use cases. This paper proposes using containers for easier implementation of Identity Providers, while lowering resource usage and complexity imposed by deployment requirements.

Published
2018
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20. Distributed Air Traffic Control Simulator

Author

R. Radovanović, Z. Radivojević, and M. Cvetanović

Subjects
Air traffic control, air traffic controller training, distributed application, simulator, Telecommunication, TK5101-6720
Abstract

During initial training air traffic control students acquire theoretical knowledge in various fields including air traffic management, aircraft performance, air traffic control equipment and systems, navigation and others. This paper proposes a simulator and explains its use and features that allows students to gain a practical insight into their coursework in order to complement their training. The goal of the simulator is to realistically implement all the key functionalities needed to cover the topics that were presented in class. The simulator offers a user friendly, distributed, and multi-role environment that can be deployed on regular PCs. Moreover, this paper discusses and resolves some of the main conceptual and implementational issues that were faced during simulator development.

Published
2013

22. Study of the neutron-rich nuclei with $N$ = 21, $^{35}$Si and $^{33}$Mg, by beta decay of $^{35}$Al and $^{33}$Na

Author

E. Caurier, Z. Radivojevic, E. Poirier, G. Le Scornet, P. Baumann, G. Walter, W. H. Trzaska, F. Nowacki, L. G. Lyapin, C. Mieh, Markku Oinonen, Ari Jokinen, S. Nummela, Juha Äystö, S. Courtin, P. Dessagne, M. Ramdhane, E. Holmlund, A. Knipper, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ISOLDE, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Physics, Nuclear and High Energy Physics, Decay scheme, 010308 nuclear & particles physics, Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Beta decay, Time of flight, 0103 physical sciences, Bound state, Level structure, Neutron, Atomic physics, Particle Physics, Ground state, 010303 astronomy & astrophysics
Abstract

The first information on the level structure of the N =21 nuclei, 35 Si and 33 Mg, has been obtained by the beta decay study of 35 Al and 33 Na, produced by fragmentation of an UC target with 1.4 GeV protons at CERN/ISOLDE. The experimental technique involved β – γ , β – γ – γ , and β –n– γ coincidences, neutron spectra being obtained by time of flight measurements. Gamma detection was made either using large Ge counters or small BaF 2 scintillators (for lifetime measurements). In the case of the 35 Al decay, ( T 1/2 =41.6(2.2) ms), a simple structure has been found for the level scheme of 35 Si ( Z =14, N =21) which has been interpreted with the level sequence : 7/2 − , 3/2 − and 3/2 + corresponding respectively to the ground state and the states at 910 and 974 keV. The life-time of the 974 keV [ T 1/2 =5.9(6) ns] is found consistent with the proposed level scheme and multipolarities. The investigation of the N =21, very neutron rich isotones, has been carried on with the study of 33 Mg resulting from the 33 Na decay, ( T 1/2 =8.0(6) ms). In this case also, a level scheme could be obtained for the first time, with 5 bound states in 32 Mg and 31 Mg levels, populated in the 1n and 2n channels. These results are compared with sd–fp shell model calculations which give a fair account of the Gamow–Teller distribution and a reasonable explanation of the lowest levels with predominant contribution of 1p–1h and 2p–2h excitations.

23. Front-end modules for ALICE SSD

Author

Lutz, J. R., Agnese, F., Baudot, J., Bonnet, D., Coffin, J. P., Clausse, O., Didierjean, F., Gojak, C., HU GUO, C., Kuhn, C., Littel, F., Plumeri, S., VAN DEN BRINK, A., Gromov, V., DE HAAS, A. P., Kluit, R., Kuijer, P., Nooren, G. J. L., Oskamp, C. J., Rossewij, M., Schipper, J. D., Sokolov, A., Timmer, P., Borshchov, V., Chykalov, O., Kiprich, S., Klimova, L., Listratenko, A., Oinonen, M. J., Radivojevic, Z., Bregant, M., Benedosso, F., Bosisio, L., Camerini, Paolo, Contin, Giacomo, Fragiacomo, E., Grion, N., Margagliotti, Giacomo, Berst, J. D., Claus, G., Colledani, C., J. R., Lutz, F., Agnese, J., Baudot, D., Bonnet, J. P., Coffin, O., Clausse, F., Didierjean, C., Gojak, C., HU GUO, C., Kuhn, F., Littel, S., Plumeri, A., VAN DEN BRINK, V., Gromov, A. P., DE HAAS, R., Kluit, P., Kuijer, G. J. L., Nooren, C. J., Oskamp, M., Rossewij, J. D., Schipper, A., Sokolov, P., Timmer, V., Borshchov, O., Chykalov, S., Kiprich, L., Klimova, A., Listratenko, M. J., Oinonen, Z., Radivojevic, M., Bregant, F., Benedosso, L., Bosisio, Camerini, Paolo, Contin, Giacomo, E., Fragiacomo, N., Grion, Margagliotti, Giacomo, J. D., Berst, G., Clau, and C., Colledani

Subjects
Detectors and Experimental Techniques
Published
2003

24. Stress Inference from Abdominal Sounds using Machine Learning.

Author

Bondareva E, Constantinides M, Eggleston MS, Jablonski I, Mascolo C, Radivojevic Z, and Scepanovic S

Subjects
Acoustics, Humans, Neural Networks, Computer, Sound, Machine Learning, Wearable Electronic Devices
Abstract

Stress is often considered the 21 st century's epidemic, affecting more than a third of the globe's population. Long-term exposure to stress has significant side effects on physical and mental health. In this work we propose a methodology for detecting stress using abdominal sounds. For this study, eight participants were either exposed to a stressful (Stroop test) or a relaxing (guided meditation) stimulus for ten days. In total, we collected 104 hours of abdominal sounds using a custom wearable device in a belt form-factor. We explored the effect of various features on the binary stress classification accuracy using traditional machine learning methods. Namely, we observed the impact of using acoustic features on their own, as well as in combination with features representing current mood state, and hand-crafted domain-specific features. After feature extraction and reduction, by utilising a multilayer perceptron classifier model we achieved 77% accuracy in detecting abdominal sounds under stress exposure. Clinical relevance- This feasibility study confirms the link between the gastrointestinal system and stress and uncovers a novel approach for stress inference via abdominal sounds using machine learning.

Published
2022
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