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A new auto synchronization technique of unipolar MPAM signals for OFDM-based optical wireless communication systems 2

A new auto synchronization technique of unipolar MPAM signal...

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2nd National Foundation for science and technology Development Conference on Information and computer science, NICS 2015

作者： Le Khoa, Dang Phuong, Nguyen Huu Ochi, Hiroshi Faculty of Electronics and Telecommunications HCM City University of Science HCM City Viet Nam Department of Computer Science and Engineering Kyushu Institute of Technology Iizuka City Japan

ISBN: (纸本)9781467366397

Optical wireless systems have attracted much attention, because they allow high speed transmission without electromagnetic interference. Orthogonal frequency division multiplexing (OFDM) can send multiple high speed signals by using orthogonal carrier frequencies. Recently, studies have focused on the optimal OFDM technique for optical wireless systems. When using OFDM, one important issue is the determination of the cyclic prefix and its removal from the frame before the receiver detects signals. In this paper, we propose a new auto synchronization technique for OFDM systems. This technique enables the removal of the cyclic prefix in any sample of the OFDM frame and valid only for unipolar MPAM signals. It is a candidate for 2 or 4-PAM OFDM. The results of mathematical analysis and simulations show that it can be used for optical wireless systems. © 2015 IEEE.

关键词： Orthogonal frequency division multiplexing

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Dijet azimuthal correlations and conditional yields in pp and p+Pb collisions at sNN=5.02TeV with the ATLAS detector

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Physical Review C 2019年第3期100卷 034903-034903页

作者： M. Aaboud G. Aad B. Abbott D. C. Abbott O. Abdinov B. Abeloos D. K. Abhayasinghe S. H. Abidi O. S. AbouZeid N. L. Abraham H. Abramowicz H. Abreu Y. Abulaiti B. S. Acharya S. Adachi L. Adam L. Adamczyk L. Adamek J. Adelman M. Adersberger A. Adiguzel T. Adye A. A. Affolder Y. Afik C. Agapopoulou C. Agheorghiesei J. A. Aguilar-Saavedra F. Ahmadov G. Aielli S. Akatsuka T. P. A. Åkesson E. Akilli A. V. Akimov G. L. Alberghi J. Albert M. J. Alconada Verzini S. Alderweireldt M. Aleksa I. N. Aleksandrov C. Alexa D. Alexandre T. Alexopoulos M. Alhroob B. Ali G. Alimonti J. Alison S. P. Alkire C. Allaire B. M. M. Allbrooke B. W. Allen P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. A. Alshehri M. I. Alstaty B. Alvarez Gonzalez D. Álvarez Piqueras M. G. Alviggi Y. Amaral Coutinho A. Ambler L. Ambroz C. Amelung D. Amidei S. P. Amor Dos Santos S. Amoroso C. S. Amrouche F. An C. Anastopoulos N. Andari T. Andeen C. F. Anders J. K. Anders A. Andreazza V. Andrei C. R. Anelli S. Angelidakis I. Angelozzi A. Angerami A. V. Anisenkov A. Annovi C. Antel M. T. Anthony M. Antonelli D. J. A. Antrim F. Anulli M. Aoki J. A. Aparisi Pozo L. Aperio Bella G. Arabidze J. P. Araque V. Araujo Ferraz R. Araujo Pereira A. T. H. Arce F. A. Arduh J.-F. Arguin S. Argyropoulos J.-H. Arling A. J. Armbruster L. J. Armitage A. Armstrong O. Arnaez H. Arnold A. Artamonov G. Artoni S. Artz S. Asai N. Asbah E. M. Asimakopoulou L. Asquith K. Assamagan R. Astalos R. J. Atkin M. Atkinson N. B. Atlay K. Augsten G. Avolio R. Avramidou M. K. Ayoub A. M. Azoulay G. Azuelos A. E. Baas M. J. Baca H. Bachacou K. Bachas M. Backes P. Bagnaia M. Bahmani H. Bahrasemani A. J. Bailey V. R. Bailey J. T. Baines M. Bajic C. Bakalis O. K. Baker P. J. Bakker D. Bakshi Gupta S. Balaji E. M. Baldin P. Balek F. Balli W. K. Balunas J. Balz E. Banas A. Bandyopadhyay S. Banerjee A. A. E. Bannoura L. Barak W. M. Barbe E. L. Barberio D. Barberis M. Barbero T. Barillari M.-S. Barisits J. Barkeloo T. Barklow R. Barnea S. L. Barnes B. M. Barnett R. M. Barnett Z. Barnovska-Blen Faculté des Sciences Université Mohamed Premier and LPTPM Oujda Morocco CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Department of Physics University of Massachusetts Amherst Massachusetts Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan LAL Université Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France Department of Physics Royal Holloway University of London Egham United Kingdom Department of Physics University of Toronto Toronto Ontario Canada Niels Bohr Institute University of Copenhagen Copenhagen Denmark Department of Physics and Astronomy University of Sussex Brighton United Kingdom Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion Israel Institute of Technology Haifa Israel High Energy Physics Division Argonne National Laboratory Argonne Illinois USA INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy International Center for Elementary Particle Physics and Department of Physics University of Tokyo Tokyo Japan Institut für Physik Universität Mainz Mainz Germany AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Bogazici University Istanbul Turkey Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz California USA Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania Universidad de Granada Granada (Spain) Portugal Laboratório de Instrumentação e Física Experimental de Partículas (LIP) Portugal Joint Institute for Nuclear Research Dubna Rus

This paper presents a measurement of forward-forward and forward-central dijet azimuthal angular correlations and conditional yields in proton-proton (pp) and proton-lead (p+Pb) collisions as a probe of the nuclear gluon density in regions where the fraction of the average momentum per nucleon carried by the parton entering the hard scattering is low. In these regions, gluon saturation can modify the rapidly increasing parton distribution function of the gluon. The analysis utilizes 25pb−1 of pp data and 360μb−1 of p+Pb data, both at sNN=5.02 TeV, collected in 2015 and 2016, respectively, with the ATLAS detector at the Large Hadron Collider. The measurement is performed in the center-of-mass frame of the nucleon-nucleon system in the rapidity range between −4.0 and 4.0 using the two highest transverse-momentum jets in each event, with the highest transverse-momentum jet restricted to the forward rapidity range. No significant broadening of azimuthal angular correlations is observed for forward-forward or forward-central dijets in p+Pb compared to pp collisions. For forward-forward jet pairs in the proton-going direction, the ratio of conditional yields in p+Pb collisions to those in pp collisions is suppressed by approximately 20%, with no significant dependence on the transverse momentum of the dijet system. No modification of conditional yields is observed for forward-central dijets.

关键词： Hard scattering Particle correlations & fluctuations Quark & gluon jets Relativistic heavy-ion collisions

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Search for electroweak diboson production in association with a high-mass dijet system in semileptonic final states in pp collisions at s=13 TeV with the ATLAS detector

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Physical Review D 2019年第3期100卷 032007-032007页

作者： G. Aad B. Abbott D. C. Abbott O. Abdinov A. Abed Abud K. Abeling D. K. Abhayasinghe S. H. Abidi O. S. AbouZeid N. L. Abraham H. Abramowicz H. Abreu Y. Abulaiti B. S. Acharya B. Achkar S. Adachi L. Adam C. Adam Bourdarios L. Adamczyk L. Adamek J. Adelman M. Adersberger A. Adiguzel S. Adorni T. Adye A. A. Affolder Y. Afik C. Agapopoulou M. N. Agaras A. Aggarwal C. Agheorghiesei J. A. Aguilar-Saavedra F. Ahmadov X. Ai G. Aielli S. Akatsuka T. P. A. Åkesson E. Akilli A. V. Akimov K. Al Khoury G. L. Alberghi J. Albert M. J. Alconada Verzini S. Alderweireldt M. Aleksa I. N. Aleksandrov C. Alexa D. Alexandre T. Alexopoulos A. Alfonsi M. Alhroob B. Ali G. Alimonti J. Alison S. P. Alkire C. Allaire B. M. M. Allbrooke B. W. Allen P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. A. Alshehri M. Alvarez Estevez B. Alvarez Gonzalez D. Álvarez Piqueras M. G. Alviggi Y. Amaral Coutinho A. Ambler L. Ambroz C. Amelung D. Amidei S. P. Amor Dos Santos S. Amoroso C. S. Amrouche F. An C. Anastopoulos N. Andari T. Andeen C. F. Anders J. K. Anders A. Andreazza V. Andrei C. R. Anelli S. Angelidakis A. Angerami A. V. Anisenkov A. Annovi C. Antel M. T. Anthony M. Antonelli D. J. A. Antrim F. Anulli M. Aoki J. A. Aparisi Pozo L. Aperio Bella G. Arabidze J. P. Araque V. Araujo Ferraz R. Araujo Pereira C. Arcangeletti A. T. H. Arce F. A. Arduh J-F. Arguin S. Argyropoulos J.-H. Arling A. J. Armbruster L. J. Armitage A. Armstrong O. Arnaez H. Arnold A. Artamonov G. Artoni S. Artz S. Asai N. Asbah E. M. Asimakopoulou L. Asquith K. Assamagan R. Astalos R. J. Atkin M. Atkinson N. B. Atlay H. Atmani K. Augsten G. Avolio R. Avramidou M. K. Ayoub A. M. Azoulay G. Azuelos M. J. Baca H. Bachacou K. Bachas M. Backes F. Backman P. Bagnaia M. Bahmani H. Bahrasemani A. J. Bailey V. R. Bailey J. T. Baines M. Bajic C. Bakalis O. K. Baker P. J. Bakker D. Bakshi Gupta S. Balaji E. M. Baldin P. Balek F. Balli W. K. Balunas J. Balz E. Banas A. Bandyopadhyay Sw. Banerjee A. A. E. Bannoura L. Barak W. M. Barbe E. L. Barberio D. Barberis M. Barbero T. B CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Department of Physics University of Massachusetts Amherst Massachusetts USA Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan INFN Sezione di Pavia Italy Dipartimento di Fisica Università di Pavia Pavia Italy II. Physikalisches Institut Georg-August-Universität Göttingen Göttingen Germany Department of Physics Royal Holloway University of London Egham United Kingdom Department of Physics University of Toronto Toronto Ontario Canada Niels Bohr Institute University of Copenhagen Copenhagen Denmark Department of Physics and Astronomy University of Sussex Brighton United Kingdom Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion Israel Institute of Technology Haifa Israel High Energy Physics Division Argonne National Laboratory Argonne Illinois USA INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy International Center for Elementary Particle Physics and Department of Physics University of Tokyo Tokyo Japan Institut für Physik Universität Mainz Mainz Germany LAL Université Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Bogazici University Istanbul Turkey Département de Physique Nucléaire et Corpusculaire Université de Genève Genève Switzerland Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz California USA LPC Université Clermont Auvergne CNRS/IN2P3 Clermont-Ferran

This paper reports on a search for electroweak diboson (WW/WZ/ZZ) production in association with a high-mass dijet system, using data from proton-proton collisions at a center-of-mass energy of s=13 TeV. The data, corresponding to an integrated luminosity of 35.5 fb−1, were recorded with the ATLAS detector in 2015 and 2016 at the Large Hadron Collider. The search is performed in final states in which one boson decays leptonically, and the other boson decays hadronically. The hadronically decaying W/Z boson is reconstructed as either two small-radius jets or one large-radius jet using jet substructure techniques. The electroweak production of WW/WZ/ZZ in association with two jets is measured with an observed (expected) significance of 2.7 (2.5) standard deviations, and the fiducial cross section is measured to be 45.1±8.6(stat.)−14.6+15.9(syst.) fb.

关键词： Electroweak interaction Quantum electrodynamics Gauge bosons W & Z bosons Hadron colliders Particle accelerators

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Extended Goal Graph: A Support Tool for Discovering Conflicts among Stakeholders and Promoting Requirements Elicitation with Goal Orientation

Extended Goal Graph: A Support Tool for Discovering Conflict...

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IEEE International Conference on Data Mining Workshops (ICDM Workshops)

作者： Noriyuki Kushiro Takuro Shimizu Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Iizuka Fukuoka Japan

ISBN: (纸本)9781467384940

Requirements for a system are often discovered during negotiation process, at the time when stakeholders of the system are thinking over their premises or backgrounds behind other stakeholders' requirements, rather than at the time when stakeholders thinking about their own requirements. Disagreements and conflicts between stakeholders are utilized as a driver to discover requirements for the system. In this paper, we propose a support tool for discovering conflicts among stakeholders, called an extended goal graph. We implemented a prototype of the tool and applied the prototype to a requirements meeting to confirm feasibility for discovering conflicts.

关键词： Stakeholders Prototypes Cameras Quality function deployment Time factors Conferences

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Application of facial reduction to H∞ state feedback control problem 8

Application of facial reduction to H∞ state feedback contro...

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8th IFAC Symposium on Robust Control Design, ROCOND 2015

作者： Waki, Hayato Sebe, Noboru Institute of Mathematics for Industry Kyushu University 744 Motooka Nishi-ku Fukuoka819-0395 Japan Department of Artificial Intelligence Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka-shi Fukuoka820-8502 Japan

One often encounters numerical difficulties in solving linear matrix inequality (LMI) problems obtained from H∞ control problems. We discuss the reason from the viewpoint of optimization. It is empirically known that a numerical difficulty occurs if the resulting LMI problem or its dual is not strongly feasible. In this paper, we provide necessary and sufficient conditions for LMI problem and its dual not to be strongly feasible, and interpret them in terms of control system. For this, facial reduction, which was proposed by Borwein and Wolkowicz, plays an important role. We show that a necessary and sufficient condition closely related to the existence of invariant zeros in the closed left-half plane in the system, and present a way to remove the numerical difficulty with the null vectors associated with invariant zeros in the closed left-half plane. Numerical results show that the numerical stability is improved by applying it. © 2015, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Linear matrix inequalities

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Inducing Awareness for Learners through Visualizing Mutual Evaluation Data by a Self-Organizing Map

Inducing Awareness for Learners through Visualizing Mutual E...

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International Conference on Soft Computing and Pattern Recognition

作者： Yuta Ueki Kei Ohnishi Graduate School of Computer Science and System Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka Fukuoka 820-8502 Japan

ISBN: (纸本)9781467393614

Self-evaluation and evaluations among peer learners, which together are called mutual evaluations in this study, are presumed to motivate learners to increase learning and introspection. The basis behind these effects is the awareness resulting from the differences between self-evaluation and evaluations from others. Therefore, for learners to benefit from the effects of mutual evaluations, we need to easily visualize the mutual evaluation results that make them aware of something. In this paper we design a system to visualize mutual evaluation data, which are many and multi-dimensional data, in such a way that we can easily grasp the overview at first glance and develop an actual system according to the design for fostering "Fundamental Competencies for Working Persons" as an example. In addition, we compare the visualization method used in the developed system with an existing method through a subjective evaluation test and a statistical hypothesis test. Finally, we show the usefulness of our visualization method by comparing the results.

关键词： mutual evaluation visualization awareness selforganizing map

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Asynchronous P systems for a Compare-and-Exchange Operation and Sorting

Asynchronous P Systems for a Compare-and-Exchange Operation ...

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International Symposium on Computing and Networking (CANDAR)

作者： Yutaka Nishida Akihiro Fujiwara Graduate School of Computer Science and Systems Engineering Kyushu Institute of Technology Iizuka Fukuoka Japan

In the present paper, we consider asynchronous P systems, which is a computational model based on cell activity, and propose two P systems that execute a compare-and-exchange operation and sorting. We first propose an asynchronous P system for the compare-and-exchange operation of two binary numbers of m bits. The P system works in O(m) steps by using O(m) types of objects, a constant number of membranes and evolution rules of size O(m). We next propose an asynchronous P system for sorting of n binary numbers of m bits by using the above asynchronous P system as a sub-system. The P system works in O(mn 2 ) steps by using O(mn) types of objects, a constant number of membranes, and evolution rules of size O(mn).

关键词： Biomembranes Parallel processing Computational modeling Sorting Evolution (biology) Standards

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A Multifunctional Controller Realized by Biochemical Reactions

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SICE Journal of Control, Measurement, and system Integration 2015年第2期8卷 99-107页

作者： Takashi Nakakuki Department of Systems Design and Informatics Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology

A protein stabilization system is a type of post-transcriptional processing that ubiquitously exists in various types of cells, and it plays a major role in stabilizing the three-dimensional conformation of a translated protein. It comprises a series of activation-deactivation reactions coupled with nucleocytoplasmic shuttling, and it is described by a four-dimensional nonlinear ordinary differential equation based on chemical kinetics. This study shows that this system can variously function as two types of integral controllers, low-pass filter, and integrator depending on the combination of the statuses of cytoplasmic and nucleus enzymes that mediate its reaction rates. This indicates that the system is multifunctional, where these statuses are controlled by the peripheral system around the stabilization system. In particular, because realizing an integral controller for regulating the concentration of a particular molecule to a desired level in biochemical reactions is theoretically and technically important in molecular robotics, the author demonstrates some numerical simulation results regarding integral control.

关键词： biochemical reaction multifunctional system integral control molecular robotics

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Feasibility study for life event sensor on big field data

Feasibility study for life event sensor on big field data

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IEEE International Conference on Consumer Electronics (ICCE)

作者： Noriyuki Kushiro Taichi Ide Kazuki Tomonaga Yuki Ogawa Toshiyasu Higuma Faculty of Computer Science and System Engineering Kyushu Institute of Technology KIT Iizuka Fukuoka Japan Living Environment Systems Laboratory Mitsubishi Electric Corp. Kamakura Kanagawa Japan

Life event sensor is an activity recognition sensor both for measuring electric power and for detecting usage of electronic devices by utilizing high frequency current waveform as a signature of each device. To discuss the feasibility of the sensor, we have constructed a long-term data collection system and installed the system in five occupied houses. Discussion about feasibility of the life event sensor on long-term field data and experimental data on a test bed, which can simulate several conditions of power line, is described in this paper.

关键词： Stability analysis Data collection Frequency measurement Generators Object recognition Impedance Fluctuations

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A new auto synchronization technique of unipolar MPAM signals for OFDM-based optical wireless communication systems

A new auto synchronization technique of unipolar MPAM signal...

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National Foundation for science and technology Development Conference on Information and computer science (NICS)

作者： Dang Le Khoa Nguyen Huu Phuong Hiroshi Ochi Faculty of Electronics and Telecommunications HCM City University of Science HCM City Vietnam Department of Computer Science and Engineering Kyushu Institute of Technology Iizuka City Japan

关键词： OFDM Wireless communication Optical receivers Optical transmitters Optical reflection Synchronization

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