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IEEE International Symposium on Nanoscale Architectures (NANOARCH)

作者： Meshal Alawein Hossein Fariborzi Computer Electrical and Mathematical Sciences and Engineering Division King Abdullah University of Science and Technology Thuwal Saudi Arabia

ISBN: (纸本)9781467389273

Spintronic devices are prime candidates for Beyond CMOS era due to their potential for low power consumption and high density computation and storage. All-spin logic (ASL) is among the most promising spintronic logic switches. Previous attempts to model ASL in the linear and diffusive regime either neglect the dynamic characteristics of the transport or do not provide a scalable and robust platform for full micromagnetic simulations and inclusion of other effects like spin Hall effect (SHE) and spin-orbit torque (SOT). In this paper, and based on a finite difference scheme, we propose an improved self-consisting magnetization dynamics/time-dependent carrier transport model that captures the main characteristics of ASL devices.

关键词： Mathematical model Magnetization Integrated circuit modeling Saturation magnetization Magnetoelectronics Magnetic domains Magnetomechanical effects

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gTBS: A green Task-Based Sensing for energy efficient Wireless Sensor Networks

gTBS: A green Task-Based Sensing for energy efficient Wirele...

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IEEE Conference on computer Communications Workshops, INFOCOM Wksps

作者： Abdullah Alhalafi Lokman Sboui Rawan Naous Basem Shihada Computer Electrical and Mathematical Science and Engineering Division (CEMSE) King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia

ISBN: (纸本)9781467399562

Wireless sensor networks (WSN) are widely used to sense and measure physical conditions for different purposes and within different regions. However due to the limited lifetime of the sensor's energy source, many efforts are made to design energy efficient WSN. As a result, many techniques were presented in the literature such as power adaptation, sleep and wake-up, and scheduling in order to enhance WSN lifetime. These techniques where presented separately and shown to achieve some gain in terms of energy efficiency. In this paper, we present an energy efficient cross layer design for WSN that we named “green Task-Based Sensing” (gTBS) scheme. The gTBS design is a task based sensing scheme that not only prevents wasting power in unnecessary signaling, but also utilizes several techniques for achieving reliable and energy efficient WSN. The proposed gTBS combines the power adaptation with a sleep and wake-up technique that allows inactive nodes to sleep. Also, it adopts a gradient-oriented unicast approach to overcome the synchronization problem, minimize network traffic hurdles, and significantly reduce the overall power consumption of the network. We implement the gTBS on a testbed and we show that it reduces the power consumption by a factor of 20%-55% compared to traditional TBS. It also reduces the delay by 54%-145% and improves the delivery ratio by 24%-73%.

关键词： Sensors Wireless sensor networks Synchronization Protocols Energy consumption Routing Conferences

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A blind matching algorithm for cognitive radio networks

A blind matching algorithm for cognitive radio networks

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IEEE International Symposium on Information Theory

作者： Doha Hamza Jeff S. Shamma Computer Electrical and Mathematical Science and Engineering (CEMSE) Division King Abdullah University of Science and Technology (KAUST) Thuwal Kingdom of Saudi Arabia School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA

ISBN: (纸本)9781509018079

We consider a cognitive radio network where secondary users (SUs) are allowed access time to the spectrum belonging to the primary users (PUs) provided that they relay primary messages. PUs and SUs negotiate over allocations of the secondary power that will be used to relay PU data. We formulate the problem as a generalized assignment market to find an epsilon pairwise stable matching. We propose a distributed blind matching algorithm (BLMA) to produce the pairwise-stable matching plus the associated power allocations. We stipulate a limited information exchange in the network so that agents only calculate their own utilities but no information is available about the utilities of any other users in the network. We establish convergence to epsilon pairwise stable matchings in finite time. Finally we show that our algorithm exhibits a limited degradation in PU utility when compared with the Pareto optimal results attained using perfect information assumptions.

关键词： Relays Teleworking

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Longitudinal Flow Decorrelations in Xe+Xe Collisions at sNN=5.44 TeV with the ATLAS Detector

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physical Review Letters 2021年第12期126卷 122301-122301页

作者： G. Aad B. Abbott D. C. Abbott 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 W. S. Ahmed 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 T. Alexopoulos A. Alfonsi F. Alfonsi M. Alhroob B. Ali M. Aliev G. Alimonti C. Allaire B. M. M. Allbrooke B. W. Allen P. P. Allport A. Aloisio F. Alonso C. Alpigiani A. A. Alshehri E. Alunno Camelia M. Alvarez Estevez 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 S. Y. Andrean A. Andreazza V. Andrei C. R. Anelli S. Angelidakis A. Angerami A. V. Anisenkov A. Annovi C. Antel M. T. Anthony E. Antipov M. Antonelli D. J. A. Antrim F. Anulli M. Aoki J. A. Aparisi Pozo M. A. Aparo L. Aperio Bella 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 A. Armstrong O. Arnaez H. Arnold Z. P. Arrubarrena Tame G. Artoni S. Artz S. Asai T. Asawatavonvanich N. Asbah E. M. Asimakopoulou L. Asquith J. Assahsah K. Assamagan R. Astalos R. J. Atkin M. Atkinson N. B. Atlay H. Atmani K. Augsten G. Avolio M. K. Ayoub G. Azuelos H. Bachacou K. Bachas M. Backes F. Backman P. Bagnaia M. Bahmani H. Bahrasemani A. J. Bailey V. R. Bailey J. T. Baines 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 M. Bandieramonte A. Bandyopadhyay Sw. Banerjee L. Barak W. M. Barbe E. L. Barberio D. Barberis M. Barbero G. Barbour T. Barillari M-S. Barisits J. Barkel 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 CERN Geneva Switzerland 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 ON 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 LAPP Université Grenoble Alpes Université Savoie Mont Blanc CNRS/IN2P3 Annecy 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 IJCLab Université Paris-Saclay CNRS/IN2P3 91405 Orsay France LPC Université Clermont Auvergne CNRS/IN2P3 Clermont-Ferrand France Institute for Mathematics Astrophysics and Partic

The first measurement of longitudinal decorrelations of harmonic flow amplitudes vn for n=2–4 in Xe+Xe collisions at sNN=5.44 TeV is obtained using 3 μb−1 of data with the ATLAS detector at the LHC. The decorrelation signal for v3 and v4 is found to be nearly independent of collision centrality and transverse momentum (pT) requirements on final-state particles, but for v2 a strong centrality and pT dependence is seen. When compared with the results from Pb+Pb collisions at sNN=5.02 TeV, the longitudinal decorrelation signal in midcentral Xe+Xe collisions is found to be larger for v2, but smaller for v3. Current hydrodynamic models reproduce the ratios of the vn measured in Xe+Xe collisions to those in Pb+Pb collisions but fail to describe the magnitudes and trends of the ratios of longitudinal flow decorrelations between Xe+Xe and Pb+Pb. The results on the system-size dependence provide new insights and an important lever arm to separate effects of the longitudinal structure of the initial state from other early and late time effects in heavy-ion collisions.

关键词： Collective flow Particle correlations & fluctuations Quark-gluon plasma Relativistic heavy-ion collisions

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Medium-Induced Modification of Z-Tagged Charged Particle Yields in Pb+Pb Collisions at 5.02 TeV with the ATLAS Detector

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physical Review Letters 2021年第7期126卷 072301-072301页

作者： G. Aad B. Abbott D. C. Abbott 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 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 A. Ahmad F. Ahmadov W. S. Ahmed X. Ai G. Aielli S. Akatsuka M. Akbiyik 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 T. Alexopoulos A. Alfonsi F. Alfonsi M. Alhroob B. Ali S. Ali M. Aliev G. Alimonti C. Allaire B. M. M. Allbrooke B. W. Allen P. P. Allport A. Aloisio F. Alonso C. Alpigiani E. Alunno Camelia M. Alvarez Estevez 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 J. K. Anders S. Y. Andrean A. Andreazza V. Andrei C. R. Anelli S. Angelidakis A. Angerami A. V. Anisenkov A. Annovi C. Antel M. T. Anthony E. Antipov M. Antonelli D. J. A. Antrim F. Anulli M. Aoki J. A. Aparisi Pozo M. A. Aparo L. Aperio Bella N. Aranzabal 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 A. Armstrong O. Arnaez H. Arnold Z. P. Arrubarrena Tame G. Artoni H. Asada K. Asai S. Asai T. Asawatavonvanich N. Asbah E. M. Asimakopoulou L. Asquith J. Assahsah K. Assamagan R. Astalos R. J. Atkin M. Atkinson N. B. Atlay H. Atmani P. A. Atmasiddha K. Augsten V. A. Austrup G. Avolio M. K. Ayoub G. Azuelos D. Babal H. Bachacou K. Bachas F. Backman P. Bagnaia M. Bahmani H. Bahrasemani A. J. Bailey V. R. Bailey J. T. Baines C. Bakalis O. K. Baker P. J. Bakker E. Bakos D. Bakshi Gupta S. Balaji R. Balasubramanian E. M. Baldin P. Balek F. Balli W. K. Balunas J. Balz E. Banas M. Bandieramonte A. Bandyopadhyay Sw. Banerjee L. Barak W. M. Barbe E. L. Barberio D. Barberis M. 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 CERN Geneva Switzerland 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 ON 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 Institut für Physik Universität Mainz Mainz Germany LAPP Université Grenoble Alpes Université Savoie Mont Blanc CNRS/IN2P3 Annecy 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 IJCLab Université Paris-Saclay CNRS/IN2P3 91405 Orsay France LPC Université Clermont Auvergne CNRS/IN2P3 Clermont-Ferrand France Institute for Mathematics Astrophysics and Particle Physics Radboud University Nijmegen/Nikhef Nijmegen Netherlands Department of Physics Alexandru Ioan Cuza U

The yield of charged particles opposite to a Z boson with large transverse momentum (pT) is measured in 260 pb−1 of pp and 1.7 nb−1 of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. The Z boson tag is used to select hard-scattered partons with specific kinematics, and to observe how their showers are modified as they propagate through the quark-gluon plasma created in Pb+Pb collisions. Compared with pp collisions, charged-particle yields in Pb+Pb collisions show significant modifications as a function of charged-particle pT in a way that depends on event centrality and Z boson pT. The data are compared with a variety of theoretical calculations and provide new information about the medium-induced energy loss of partons in a pT regime difficult to measure through other channels.

关键词： Jets & heavy flavor physics Quark & gluon jets Quark-gluon plasma Relativistic heavy-ion collisions

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Formation of Single-atom-thick Copper Oxide Monolayers

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Microscopy and Microanalysis 2017年第S1期23卷 1684-1685页

作者： Kuibo Yin Yu-Yang Zhang Yilong Zhou Litao Sun Matthew F. Chisholm Sokrates T. Pantelides Wu Zhou SEU-FEI Nano-Pico Center Key Lab of MEMS of Ministry of Education Southeast University Nanjing 210096 China Materials Science & Technology Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA Department of Physics and Astronomy and Department of Electrical Engineering and Computer Science Vanderbilt University Nashville TN 37235 USA Center for Advanced Materials and Manufacture Joint Research Institute of Southeast University and Monash University Suzhou 215123 China

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Microchannels: Bioinspired Universal Flexible Elastomer-Based Microchannels (Small 18/2018)

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Small 2018年第18期14卷

作者： Feng Wu Songyue Chen Baiyi Chen Miao Wang Lingli Min Jack Alvarenga Jie Ju Ali Khademhosseini Yuxing Yao Yu Shrike Zhang Joanna Aizenberg Xu Hou Bionic and Soft Matter Research Institute College of Physical Science and Technology Xiamen University 361005 Xiamen China Department of Mechanical and Electrical Engineering Xiamen University 361005 Xiamen China College of Chemistry and Chemical Engineering and Collaborative Innovation Center of Chemistry for Energy Materials and State Key Laboratory of Physical Chemistry of Solid Surfaces and Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen University 361005 Xiamen China Wyss Institute for Biologically Inspired Engineering Harvard University Cambridge MA 02138 USA Biomaterials Innovation Research Center Division of Engineering in Medicine Department of Medicine Brigham and Women's Hospital Harvard Medical School Cambridge MA 02139 USA Department of Chemistry and Chemical Biology Harvard University Cambridge MA 02138 USA

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Author Correction: Discovery of a radiation component from the Vela pulsar reaching 20 teraelectronvolts

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Nature Astronomy 2024年 145页

作者： F. Aharonian R. Brose C. Burger-Scheidlin J. Mackey D. Zargaryan K. Bernlöhr M. Breuhaus L. Haerer J. A. Hinton W. Hofmann Z. Huang V. Marandon A. Mitchell L. Mohrmann L. Olivera-Nieto M. Panter G. Peron F. Rieger E. Ruiz-Velasco S. Sailer S. Steinmassl M. Tsirou F. Werner R. White F. Ait Benkhali S. Ghafourizadeh F. Jankowsky I. Lypova R. Marx A. Quirrenbach S. J. Wagner J. Aschersleben D. A. Prokhorov M. Vecchi J. Vink H. Ashkar G. Fontaine J. Muller M. de Naurois M. Backes E. Kasai J. N. S. Shapopi R. Steenkamp M. Böttcher T. Chand S. Chandra O. Chibueze P. Goswami I. Sushch C. Venter H. Yassin M. Zacharias N. Żywucka V. Barbosa Martins D. Berge J. Damascene Mbarubucyeye M. Füßling G. Giavitto M. Haupt T. L. Holch S. Klepser D. Kostunin T. Murach S. Ohm E. de Ona Wilhelmi H. Prokoph S. J. Zhu R. Batzofin A. Chen Nu. Komin P. Marchegiani Y. Becherini M. Cerruti A. Djannati-Ataï S. Gabici L. Giunti B. Khélifi A. Lemière S. Pita M. Punch M. Spir-Jacob R. Terrier S. Zouari T. Bylund J. Borowska T. Lohse R. D. Parsons U. Schwanke B. Bi F. Leuschner D. Malyshev G. Pühlhofer H. Salzmann A. Santangelo C. Thorpe-Morgan C. Boisson A. Dmytriiev G. Fichet de Clairfontaine A. Luashvili H. Sol A. Zech J. Bolmont F. Cangemi S. Caroff G. Grolleron J.-P. Lenain M. de Bony de Lavergne A. Fiasson G. Maurin D. A. Sanchez F. Bradascio F. Brun J. F. Glicenstein K. Kosack A. Montanari E. Moulin P. Reichherzer F. Schüssler T. Tavernier B. Bruno J. Celic S. Funk D. Glawion V. Joshi I. Jung-Richardt R. G. Lang K. Nakashima M. Sasaki A. Specovius S. Spencer C. van Eldik J. Veh Y. Wun Wong T. Bulik S. Casanova J. Niemiec A. Wierzcholska G. Cotter K. Egberts C. Steppa J.-P. Ernenwein S. Le Stum K. Feijen P. Marinos G. Rowell Y. A. Gallant A. Marcowith M. Renaud A. Sinha M.-H. Grondin M. Lemoine-Goumard M. Holler G. Martí-Devesa S. Panny A. Reimer O. Reimer D. Horns M. Meyer M. Tluczykont M. Jamrozy A. Priyana Noel M. Ostrowski L. Stawarz K. KatarzyÅ„ski W. KluÅºniak R. Moderski B. Rudak A. A. Zdziarski P. O’Brien V. Sahakian H. Suzuki T. Dublin Institute for Advanced Studies Dublin Ireland Max-Planck-Institut für Kernphysik Heidelberg Germany Yerevan State University Yerevan Armenia Friedrich-Alexander-Universität Erlangen-Nürnberg Erlangen Centre for Astroparticle Physics Erlangen Germany Landessternwarte Universität Heidelberg Königstuhl Heidelberg Germany GRAPPA Anton Pannekoek Institute for Astronomy University of Amsterdam Amsterdam the Netherlands Laboratoire Leprince-Ringuet École Polytechnique CNRS Institut Polytechnique de Paris Palaiseau France University of Namibia Department of Physics Windhoek Namibia Centre for Space Research North-West University Potchefstroom South Africa Laboratoire Univers et Théories Observatoire de Paris Université PSL CNRS Université de Paris Meudon France DESY Zeuthen Germany Institut für Physik Humboldt-Universität zu Berlin Berlin Germany School of Physics University of the Witwatersrand Johannesburg South Africa Université Paris Cité CNRS Astroparticule et Cosmologie Paris France Department of Physics and Electrical Engineering Linnaeus University Växjö Sweden IRFU CEA Université Paris-Saclay Gif-sur-Yvette France Institut für Astronomie und Astrophysik Universität Tübingen Tübingen Germany Sorbonne Université Université Paris Diderot Sorbonne Paris Cité CNRS IN2P3 Laboratoire de Physique Nucléaire et de Hautes Energies Paris France Université Savoie Mont Blanc CNRS Laboratoire d’Annecy de Physique des Particules IN2P3 Annecy France Astronomical Observatory The University of Warsaw Warsaw Poland Instytut Fizyki Jadrowej PAN Kraków Poland University of Oxford Department of Physics Oxford UK Institut für Physik und Astronomie Universität Potsdam Potsdam Germany Université d‘Aix-Marseille CNRS IN2P3 CPPM Marseille France School of Physical Sciences University of Adelaide Adelaide South Australia Australia Laboratoire Univers et Particules de Montpellier Université Montpellier CNRS IN2P3 Montpellier France Université

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K*(892)0 and ϕ(1020) production in p−Pb collisions at sNN=8.16 TeV

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physical Review C 2023年第5期107卷 055201-055201页

作者： S. Acharya D. Adamová A. Adler J. Adolfsson G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. Ahmad S. U. Ahn I. Ahuja Z. Akbar A. Akindinov M. Al-Turany S. N. Alam D. Aleksandrov B. Alessandro H. M. Alfanda R. Alfaro Molina B. Ali Y. Ali A. Alici N. Alizadehvandchali A. Alkin J. Alme T. Alt I. Altsybeev M. N. Anaam C. Andrei D. Andreou A. Andronic M. Angeletti V. Anguelov F. Antinori P. Antonioli C. Anuj N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi I. C. Arsene M. Arslandok A. Augustinus R. Averbeck S. Aziz M. D. Azmi A. Badalà Y. W. Baek X. Bai R. Bailhache Y. Bailung R. Bala A. Balbino A. Baldisseri B. Balis D. Banerjee R. Barbera L. Barioglio M. Barlou G. G. Barnaföldi L. S. Barnby V. Barret C. Bartels K. Barth E. Bartsch F. Baruffaldi N. Bastid S. Basu G. Batigne B. Batyunya D. Bauri J. L. Bazo Alba I. G. Bearden C. Beattie I. Belikov A. D. C. Bell Hechavarria F. Bellini R. Bellwied S. Belokurova V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov A. Berdnikova L. Bergmann M. G. Besoiu L. Betev P. P. Bhaduri A. Bhasin I. R. Bhat M. A. Bhat B. Bhattacharjee P. Bhattacharya L. Bianchi N. Bianchi J. Bielčík J. Bielčíková J. Biernat A. Bilandzic G. Biro S. Biswas J. T. Blair D. Blau M. B. Blidaru C. Blume G. Boca F. Bock A. Bogdanov S. Boi J. Bok L. Boldizsár A. Bolozdynya M. Bombara P. M. Bond G. Bonomi H. Borel A. Borissov H. Bossi E. Botta L. Bratrud P. Braun-Munzinger M. Bregant M. Broz G. E. Bruno M. D. Buckland D. Budnikov H. Buesching S. Bufalino O. Bugnon P. Buhler Z. Buthelezi J. B. Butt A. Bylinkin S. A. Bysiak M. Cai H. Caines A. Caliva E. Calvo Villar J. M. M. Camacho R. S. Camacho P. Camerini F. D. M. Canedo F. Carnesecchi R. Caron J. Castillo Castellanos E. A. R. Casula F. Catalano C. Ceballos Sanchez P. Chakraborty S. Chandra S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin T. G. Chavez T. Cheng C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula P. Christakoglou C. H. Christensen P. Christiansen T. Chujo C. Cicalo L. Cifarelli F. Cindolo M. Variable Energy Cyclotron Centre Homi Bhabha National Institute Kolkata India Nuclear Physics Institute of the Czech Academy of Sciences Řež u Prahy Czech Republic Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik Fachbereich Informatik und Mathematik Frankfurt Germany Lund University Department of Physics Division of Particle Physics Lund Sweden European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy INFN Sezione di Bologna Bologna Italy Department of Physics Aligarh Muslim University Aligarh India Korea Institute of Science and Technology Information Daejeon Republic of Korea Faculty of Science P.J. Šafárik University Košice Slovakia Indonesian Institute of Sciences Jakarta Indonesia NRC ≪Kurchatov≫ Institute - ITEP Moscow Russia Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Darmstadt Germany National Research Centre Kurchatov Institute Moscow Russia INFN Sezione di Torino Turin Italy Central China Normal University Wuhan China Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico COMSATS University Islamabad Islamabad Pakistan Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Bologna Italy University of Houston Houston Texas USA Department of Physics and Technology University of Bergen Bergen Norway Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany St. Petersburg State University St. Petersburg Russia Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania Nikhef National institute for subatomic physics Amsterdam Netherlands Westfälische Wilhelms-Universität Münster Institut für Kernphysik Münster Germany Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany INFN Sezione di Padova Padova Italy Lawrence Berkeley National Laboratory Berkeley California

The production of K*(892)0and ϕ(1020)resonances has been measured in p-Pb collisions at sNN = 8.16 TeV using the ALICE detector. Resonances are reconstructed via their hadronic decay channels in the rapidity interval −0.5 < y < 0 and the transverse momentum spectra are measured for various multiplicity classes up to pT = 20 GeV/c for K*(892)0and pT = 16 GeV/c for ϕ(1020). The pT-integrated yields and mean transverse momenta are reported and compared with previous results in pp, p-Pb and Pb-Pb collisions. The xT scaling for K*(892)0and ϕ(1020)resonance production is newly tested in p-Pb collisions and found to hold in the high-pT region at Large Hadron Collider energies. The nuclear modification factors (RpPb) as a function of pT for K*0 and ϕ at sNN = 8.16 TeV are presented along with the new RpPb measurements of K*0, ϕ, Ξ, and Ω at sNN = 5.02 TeV. At intermediate pT (2–8 GeV/c), RpPb of Ξ, Ω show a Cronin-like enhancement, while K*0 and ϕ show no or little nuclear modification. At high pT (>8 GeV/c), the RpPb values of all hadrons are consistent with unity within uncertainties. The RpPb of K*(892)0and ϕ(1020)at sNN = 8.16 and 5.02 TeV show no significant energy dependence.

关键词： Hadron-hadron interactions Nucleon induced nuclear reactions Particle & resonance production Relativistic heavy-ion collisions

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Post-pinch-off relaxation of two-dimensional droplets in a Hele-Shaw cell

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physical Review Fluids 2018年第12期3卷 124202-124202页

作者： Dhirendra Tiwari Lionel Mercury Marcel Dijkstra Himanshu Chaudhary José Federico Hernández-Sánchez Institut des sciences de la Terre d'Orléans UMR 7327 Université d'Orléans CNRS BRGM 1A rue de la Férollerie 45071 Orléans France Mesoscale Chemical Systems Group MESA+ Institute for Nanotechnology University of Twente P.O. Box 217 7500 AE Enschede The Netherlands The BIOS Lab-on-a-Chip Group MESA+ Institute for Nanotechnology University of Twente P.O. Box 217 7500 AE Enschede The Netherlands Faculty of Electrical Engineering Mathematics and Computer Science (EEMCS) University of Twente P.O. Box 217 7500 AE Enschede The Netherlands School of Engineering Sciences in Chemistry Biotechnology and Health Dept. Chemistry Division of Applied Physical Chemistry KTH Royal Institute of Technology SE-10044 Stockholm Sweden Instituto de Ciencias Aplicadas y Tecnología Universidad Nacional Autónoma de México Circuito Exterior S/N Ciudad Universitaria A.P. 70-186 Delegación Coyoacán C.P. 04510 Ciudad de México México Physics of Fluids group MESA+ Institute for Nanotechnology J. M. Burgers Centre for Fluid Dynamics University of Twente P.O. Box 217 7500 AE Enschede The Netherlands

We report on the shape relaxation of two-dimensional (2D) droplets, formed right after the spontaneous pinch-off of a capillary bridge droplet confined within a Hele-Shaw cell. An array of bridge droplets confined within a microchip device first undergoes neck thinning due to the evaporation-driven volume change. Subsequently, an abrupt topological change transforms each bridge droplet into a small central satellite droplet and the twin droplets pinned at the edges of the cell. We monitor the shape relaxation with high-temporal-resolution optical microscopy. Capillary action drives the 2D shape relaxation, while the viscous dissipation in the film retards it. As a result, the tip of the twin droplets exhibits a self-similar parabolic shape evolution. Based on these observations, the lubrication-approximation model accurately predicts the internal pressure evolution and the droplet tip displacement. The geometrical confinement substantially slows down the dynamics, facilitating visualization of the capillary-viscous regime, even for low-viscosity liquids. The characteristic relaxation timescale shows an explicit dependence on the confinement ratio (width/gap) and the capillary velocity of liquid. We verify the broad applicability of the model using different liquids.

关键词： Complex fluids Interfacial flows Microfluidics Nanofluidics Surface & interfacial phenomena Surface tension effects

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