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JUNO sensitivity on proton decay p→νK^(+)searches

Chinese Physics C 2023年第11期47卷 7-22页

作者： Angel Abusleme thomas Adam shakeel Ahmad Rizwan Ahmed sebastiano Aiello Muhammad Akram 安丰鹏安琪 Giuseppe Andronico Nikolay Anfimov Vito Antonelli tatiana Antoshkina Burin Asavapibhop João Pedro Athayde Marcondes de André Didier Auguste Nikita Balashov Wander Baldini Andrea Barresi Davide Basilico Eric Baussan Marco Bellato Antonio Bergnoli thilo Birkenfeld sylvie Blin David Blum simon Blyth Anastasia Bolshakova Mathieu Bongrand Clément Bordereau Dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Mario Buscemi Jose Busto ilya Butorov Anatael Cabrera Barbara Caccianiga 蔡浩蔡啸蔡严克蔡志岩 Riccardo Callegari Antonio Cammi Agustin Campeny 曹传亚曹国富曹俊 Rossella Caruso Cédric Cerna 常劲帆 Yun Chang 陈平平 Po-An Chen 陈少敏陈旭荣 Yi-Wen Chen 陈义学陈羽陈长程捷程雅苹 Alexey Chetverikov Davide Chiesa Pietro Chimenti Artem Chukanov Gérard Claverie Catia Clementi Barbara Clerbaux selma Conforti Di Lorenzo Daniele Corti Flavio Dal Corso Olivia Dalager Christophe De La taille 邓智邓子艳 Wilfried Depnering Marco Diaz Xuefeng Ding 丁雅韵 Bayu Dirgantara sergey Dmitrievsky tadeas Dohnal Dmitry Dolzhikov Georgy Donchenko 董建蒙 Evgeny Doroshkevich Marcos Dracos Frédéric Druillole 杜然杜书先 stefano Dusini Martin Dvorak timo Enqvist Heike Enzmann Andrea Fabbri Ulrike Fahrendholz 范东华樊磊方建方文兴 Marco Fargetta Dmitry Fedoseev Li-Cheng Feng 冯启春 Richard Ford Amélie Fournier 甘浩男 Feng Gao Alberto Garfagnini Arsenii Gavrikov Marco Giammarchi Agnese Giaz Nunzio Giudice Maxim Gonchar 龚光华宫辉 Yuri Gornushkin Alexandre Göttel Marco Grassi Christian Grewing Vasily Gromov 顾旻皓谷肖飞古宇关梦云 Nunzio Guardone Maria Gul 郭聪郭竞渊郭万磊郭新恒郭宇航 Paul Hackspacher Caren Hagner 韩然 Yang Han Muhammad sohaib Hassan 何苗何伟 tobias Heinz Patrick Hellmuth 衡月昆 Rafael Herrera 贺远强侯少静 Yee Hsiung Bei-Zhen Hu 胡航胡健润胡俊胡守扬胡涛胡宇翔胡焯钧黄春豪黄桂鸿黄翰雄黄文昊黄鑫黄性涛黄永波惠加琪霍雷霍文驹 Cédric Huss safeer Hussain Ara ioannisian Roberto isocrate Beatrice Jelmini Kuo-Lun Jen ignacio Jeria 季筱璐吉星曌贾慧慧贾俊基蹇司玉蒋荻蒋炜江晓山金如意荆小平 Cécile Jollet Jari Joutsenvaara sirichok Jungthawan Leonidas Kalousis Philipp Ka Pontificia Universidad Católica de Chile SantiagoChile IPHC Universitéde StrasbourgCNRS/IN2P3F-67037 StrasbourgFrance Pakistan Institute of Nuclear Science and Technology IslamabadPakistan INFN Catania and Dipartimento di Fisica e Astronomia dell Universitàdi Catania CataniaItaly East China University of Science and Technology ShanghaiChina University of Science and Technology of China HefeiChina Joint Institute for Nuclear Research DubnaRussia INFN Sezione di Milano and Dipartimento di Fisica dell Universitàdi Milano MilanoItaly Department of Physics Faculty of ScienceChulalongkorn UniversityBangkokThailand IJCLab UniversitéParis-SaclayCNRS/IN2P391405 OrsayFrance Department of Physics and Earth Science University of Ferrara and INFN Sezione di FerraraFerraraItaly INFN Milano Bicocca and University of Milano Bicocca MilanoItaly INFN Sezione di Padova PadovaItaly III.Physikalisches Institut B RWTH Aachen UniversityAachenGermany Eberhard Karls Universität Tübingen Physikalisches InstitutTübingenGermany Institute of High Energy Physics BeijingChina SUBATECH Universitéde NantesIMT AtlantiqueCNRS-IN2P3NantesFrance Univ.Bordeaux CNRSLP2IUMR 5797F-33170 GradignanFrance Department of Physics National Taiwan UniversityTaipei Dipartimento di Fisica e Astronomia dell’Universitàdi Padova and INFN Sezione di Padova PadovaItaly University of Roma Tre and INFN Sezione Roma Tre RomaItaly Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance Wuhan University WuhanChina INFN Milano Bicocca and Politecnico of Milano MilanoItaly National United University Miao-Li Dongguan University of Technology DongguanChina Tsinghua University BeijingChina Institute of Modern Physics Chinese Academy of SciencesLanzhouChina Institute of Physics National Yang Ming Chiao Tung UniversityHsinchu North China Electric Power University BeijingChina Sun Yat-Sen University GuangzhouChina Beijing Institute of Spacecraft Environment Engineering BeijingChina Universidade Estadual de Londrina LondrinaBrazil INFN Sez

the Jiangmen Underground Neutrino Observatory(JUNO)is a large liquid scintillator detector designed to explore many topics in fundamental *** this study,the potential of searching for proton decay in the p→νK^(+)mode with JUNO is *** kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for ***,the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed *** on these advantages,the detection efficiency for the proton decay via p→νK^(+)is 36.9%±4.9%with a background level of 0.2±0.05(syst)±0.2(stat)events after 10 years of data *** estimated sensitivity based on 200 kton-years of exposure is 9.6×1033 years,which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies.

关键词： proton decay grand unified theories JUNO liquid scintillator detector

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Optimization of the operating parameters to minimize gear tooth wear rate and surface temperature of glass fiber filled HDPE based homogeneous and FGM gears

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iOP Conference series: Materials science and engineering 2019年第1期691卷

作者： sanjay Yadav Akant Kumar singh siddhartha Department of Mechanical Engineering I.T.S Engineering College Greater Noida India Department of Mechanical Engineering NIT Hamirpur India

this study emphasis on the optimization of the operating parameters viz. gear fabrication technique, rotational speed and applied torque on fabricated gears to improve their performance. Polymer gears are injection molded using conventional and horizontal centrifugal casting technique known as homogeneous and FGM gears, respectively. Material used to fabricate the gear is High Density Polyethylene (HDPE). taguchi technique is used to optimize the performance output of homogeneous and FGM gears with respect to input parameters such as torque and rotational speeds. three different rotational speeds of 400, 700 and 1000 rpm along with three different torque levels of 1, 2 and 3 Nm are selected for this investigation. Number of cycles of 1.5×105 was fixed for the experimentation. the influence of input control parameters on performance output is analysed by ANOVA analysis. the results finding show that the thermal behavior of gear is very much affected by torque whereas the specific wear rate (WR) is utmost pointedly influenced by the gear fabrication technique i.e. FGM gear has small tooth wear in the compression of homogeneous and neat HDPE gears.

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Electroweak, QCD and flavour physics studies with AtLAs data from Run 2 of the LHC

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Physics Reports 2025年 1116卷 57-126页

作者： Aad, G. Aakvaag, E. Abbott, B. Abdelhameed, s. Abeling, K. Abicht, N.J. Abidi, s.H. Aboelela, M. Aboulhorma, A. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.s. Ackermann, A. Adam Bourdarios, C. Adamczyk, L. Addepalli, s.V. Addison, M.J. Adelman, J. Adiguzel, A. Adye, t. Affolder, A.A. Afik, Y. Agaras, M.N. Agarwala, J. Aggarwal, A. Agheorghiesei, C. Ahmad, A. Ahmadov, F. Ahmed, W.s. Ahuja, s. Ai, X. Aielli, G. Aikot, A. Ait tamlihat, M. Aitbenchikh, B. Akbiyik, M. Åkesson, t.P.A. Akimov, A.V. Akiyama, D. Akolkar, N.N. Aktas, s. Al Khoury, K. Alberghi, G.L. Albert, J. Albicocco, P. Albouy, G.L. Alderweireldt, s. Alegria, Z.L. Aleksa, M. Aleksandrov, i.N. Alexa, C. Alexopoulos, t. Alfonsi, F. Algren, M. Alhroob, M. Ali, B. Ali, H.M.J. Ali, s. Alibocus, s.W. Aliev, M. Alimonti, G. Alkakhi, W. Allaire, C. Allbrooke, B.M.M. Allen, J.F. Allendes Flores, C.A. Allport, P.P. Aloisio, A. Alonso, F. Alpigiani, C. Alsolami, Z.M.K. Alvarez Estevez, M. Alvarez Fernandez, A. Alves Cardoso, M. Alviggi, M.G. Aly, M. Amaral Coutinho, Y. Ambler, A. Amelung, C. Amerl, M. Ames, C.G. Amidei, D. Amirie, K.J. Amor Dos santos, s.P. Amos, K.R. An, s. Ananiev, V. Anastopoulos, C. Andeen, t. Anders, J.K. Andrean, s.Y. Andreazza, A. Angelidakis, s. Angerami, A. Anisenkov, A.V. Annovi, A. Antel, C. Antipov, E. Antonelli, M. Anulli, F. Aoki, M. Aoki, t. Aparo, M.A. Aperio Bella, L. Appelt, C. Apyan, A. Arbiol Val, s.J. Arcangeletti, C. Arce, A.t.H. Arena, E. Arguin, J.-F. Argyropoulos, s. Arling, J.-H. Arnaez, O. Arnold, H. Artoni, G. Asada, H. Asai, K. Asai, s. Asbah, N.A. Ashby Pickering, R.A. Assamagan, K. Astalos, R. Astrand, K.s.V. Atashi, s. Atkin, R.J. Atkinson, M. Atmani, H. Atmasiddha, P.A. Augsten, K. Auricchio, s. Auriol, A.D. Austrup, V.A. Avolio, G. Axi.t.s, K. Azuelos, G. Babal, D. Bachacou, H. Bachas, K. Bachiu, A. Backman, F. Badea, A. Baer, t.M. Bagnaia, P. Bahmani, M. Bahner, D. Bai, K. Baines, J.t. Baines, L. Baker, O.K. Bakos, E. Bakshi Gupta, D. Balakrishnan, V. Balasubramanian, R. Baldin, E.M. Balek, P. Ballabene, E. CPPM Aix-Marseille Université CNRS IN2P3 Marseille France Department for Physics and Technology University of Bergen Bergen Norway Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman OK United States New York University Abu Dhabi Abu Dhabi United Arab Emirates II. Physikalisches Institut Georg-August-Universität Göttingen Göttingen Germany Fakultät Physik Technische Universität Dortmund Dortmund Germany Physics Department Brookhaven National Laboratory Upton NY United States Physics Department Southern Methodist University Dallas TX United States Faculté des sciences Université Mohammed V Rabat Morocco 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 Department of Physics New York University New York NY United States INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy Department of Physics King's College London London United Kingdom Kirchhoff-Institut für Physik Ruprecht-Karls-Universität Heidelberg Heidelberg Germany LAPP Université Savoie Mont Blanc CNRS IN2P3 Annecy France AGH University of Krakow Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Brandeis University Waltham MA United States School of Physics and Astronomy University of Manchester Manchester United Kingdom Department of Physics Northern Illinois University DeKalb IL United States Department of Physics Istanbul 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 CA United States Enrico Fermi Institute University of Chicago Chicago IL United States Institut de Física d'Altes Energies (IFAE) Barcelona Institute of Science and Technology Barcelona Spain INFN Sezione di Pavia Italy Dipartimento di Fisica Uni

A summary of precision measurements sensitive to electroweak, QCD and quark-flavour effects performed by the AtLAs Collaboration at the Large Hadron Collider is reported. the measurements are predominantly performed on proton–proton (pp) collision data recorded at a centre-of-mass energy of 13 teV taken from 2015 to 2018, with an integrated luminosity of up to 140 fb<sup>−1sup>, with some results based on pp and Pb+Pb data recorded at lower nucleon centre-of-mass energies. the results cover a wide range of topics, from strong production of particles at low energies and the spectroscopy of hadrons to perturbative QCD with hadronic jets and electroweak and strong production of single and multiple vector bosons. they provide precise measurements of fundamental constants and stringent tests of the standard Model with unprecedented precision and in energy ranges never explored before. they are also used to explore the proton structure and to perform model-independent searches for new physics. © 2024 CERN for the benefit of the AtLAs Collaboration

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Roadmap on Photovoltaic Absorber Materials for sustainable Energy Conversion

arXiv

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arXiv 2023年

作者： Blakesley, James C. Bonilla, Ruy s. Freitag, Marina Ganose, Alex M. Gasparini, Nicola Kaienburg, Pascal Koutsourakis, George Major, Jonathan D. Nelson, Jenny Noel, Nakita K. Roose, Bart Yun, Jae sung Aliwell, simon Altermatt, Pietro P. Ameri, tayebeh Andrei, Virgil Armin, Ardalan Bagnis, Diego Baker, Jenny Beath, Hamish Bellanger, Mathieu Berrouard, Philippe Blumberger, Jochen Boden, stuart A. Bronstein, Hugo Carnie, Matthew J. Case, Chris Castro, Fernando A. Chang, Yi-Ming Chao, Elmer Clarke, tracey M. Cooke, Graeme Docampo, Pablo Durose, Ken Durrant, James R. Filip, Marina R. Friend, Richard H. Frost, Jarvist M. Gibson, Elizabeth A. Gillett, Alexander J. Goddard, Pooja Habisreutinger, severin N. Heeney, Martin Hendsbee, Arthur D. Hirst, Louise C. islam, M. saiful Jayawardena, K.D.G. imalka Johnston, Michael B. Kauer, Matthias Kettle, Jeff Lamb, Dan Lidzey, David Lim, Jihoo MacKenzie, Roderick Mason, Nigel McCulloch, iain McKenna, Keith P. Meier, sebastian B. Meredith, Paul Morse, Graham Murphy, John D. Nicklin, Chris Ortega-Arriaga, Paloma Osterberg, thomas Patel, Jay B. Peaker, Anthony Riede, Moritz Rush, Martyn Ryan, James W. scanlon, David O. skabara, Peter J. so, Franky snaith, Henry J. steier, Ludmilla thiesbrummel, Jarla troisi, Alessandro Underwood, Craig Walzer, Karsten Watson, trystan Walls, J. Michael Walsh, Aron Whalley, Lucy D. Winchester, Benedi.t.stranks, samuel D. Hoye, Robert L.Z. National Physical Laboratory Hampton Rd Teddington United Kingdom Department of Materials University of Oxford OxfordOX1 3PH United Kingdom School of Natural and Environmental Sciences Newcastle University Bedson Building Newcastle upon TyneNE1 7RU United Kingdom Department of Chemistry Imperial College London 80 Wood Lane LondonW12 0BZ United Kingdom Department of Physics University of Oxford Clarendon Laboratory Parks Road OxfordOX1 3PU United Kingdom Stephenson Institute for Renewable Energy Department of Physics University of Liverpool Chadwick Building Peach Street LiverpoolL69 7ZF United Kingdom Department of Physics Centre for Processable Electronics Imperial College London LondonSW7 2AZ United Kingdom Grantham Institute – Climate Change and the Environment Imperial College London LondonSW7 2AZ United Kingdom Department of Chemical Engineering and Biotechnology University of Cambridge Phillipa Fawcett Road CambridgeCB3 0AS United Kingdom Inorganic Chemistry Laboratory Department of Chemistry University of Oxford South Parks Road OxfordOX1 3QR United Kingdom University of Surrey GuildfordGU2 7XH United Kingdom Lightricity Ltd. Edmund Halley Road OxfordOX4 4GB United Kingdom Trina Solar Co Ltd Changzhou China Institute for Materials and Processes School of Engineering University of Edinburgh Sanderson Building Robert Stevenson Road EdinburghEH9 3FB United Kingdom Department of Materials Science Faculty of Engineering Christian-Albrechts-Universität zu Kiel Kaiserstrasse 2 Kiel24143 Germany Yusuf Hamied Department of Chemistry University of Cambridge CambridgeCB2 1EW United Kingdom Department of Physics Swansea University Bay Campus SwanseaSA1 8EN United Kingdom Oninn – Centro de Inovação Av. José Candido da Silveira 2000 - Horto Florestal MG Belo Horizonte31035-536 Brazil Faculty of Science and Engineering Swansea University United Kingdom Brilliant Matters 237 Rue de Liverpool Saint-Augustin-de-DesmauresQCG3A 2C8

Photovoltaics (PVs) are a critical technology for curbing growing levels of anthropogenic greenhouse gas emissions, and meeting increases in future demand for low-carbon electricity. in order to fulfil ambitions for net-zero carbon dioxide equivalent (CO2eq) emissions worldwide, the global cumulative capacity of solar PVs must increase by an order of magnitude from 0.9 tWp in 2021 to 8.5 tWp by 2050 according to the international Renewable Energy Agency, which is considered to be a highly conservative estimate. in 2020, the Henry Royce institute brought together the UK PV community to discuss the critical technological and infrastructure challenges that need to be overcome to address the vast challenges in accelerating PV deployment. Herein, we examine the key developments in the global community, especially the progress made in the field since this earlier roadmap, bringing together experts primarily from the UK across the breadth of the photovoltaics community. the focus is both on the challenges in improving the efficiency, stability and levelized cost of electricity of current technologies for utility-scale PVs, as well as the fundamental questions in novel technologies that can have a significant impact on emerging markets, such as indoor PVs, space PVs, and agrivoltaics. We discuss challenges in advanced metrology and computational tools, as well as the growing synergies between PVs and solar fuels, and offer a perspective on the environmental sustainability of the PV industry. through this roadmap, we emphasize promising pathways forward in both the short- and long-term, and for communities working on technologies across a range of maturity levels to learn from each other. © 2023, CC BY.

关键词： Perovskite

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Biometric security and Performance Metrics: FAR, FER, CER, FRR

Biometric Security and Performance Metrics: FAR, FER, CER, F...

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international Conference on Computational intelligence and Knowledge Economy (iCCiKE)

作者： M. sivaram Mohamed Uvaze Ahamed A D. Yuvaraj G. Megala V. Porkodi Manivel Kandasamy Department of Computer Networking Lebanese French University – Erbil Kurdistan Region Iraq Department of Computer Science Cihan University Erbil Iraq Department of computer science Cihan University - Duhok Kurdistan Region Iraq Department of Computer Science Engineering M.I.E.T Engineering College Trichy India Department of Information Technology Lebanese French University Erbil Kurdistan Region Iraq Optum Tech|United Health Group USA

ISBN: (数字)9781728137780

ISBN: (纸本)9781728137797

Biometrics manages the computerized acknowledgment of people dependent on natural and social attributes. the example acknowledgment framework perceives an individual by deciding the credibility of a particular conduct normal for person. the primary rule of biometric framework is recognizable proof and check. A biometric confirmation framework use fingerprints, face, hand geometry, iris, and voice, mark, and keystroke elements of a person to recognize an individual or to check a guaranteed character. Biometrics authentication is a form of identification and access control process which identify individuals in packs that are under reconnaissance. Biometric security system increase in the overall security and individuals no longer have to deal with lost iD Cards or forgotten passwords. it helps much organization to see everyone is at a certain time when something might have happened that needs reviewed. the current issues in biometric system with individuals and many organization facing are personal privacy, expensive, data's may be stolen.

关键词： security Fingerprint recognition iris recognition Face Fingers Computational intelligence computer science

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2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

arXiv

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arXiv 2023年

作者： Jovanovic, Nemanja Gatkine, Pradip Anugu, Narsireddy Amezcua-Correa, Rodrigo thakur, Ritoban Basu Beichman, Charles Bender, Chad Berger, Jean-Philippe Bigioli, Azzurra Bland-Hawthorn, Joss Bourdarot, Guillaume Bradford, Charles M. Broeke, Ronald Bryant, Julia Bundy, Kevin Cheriton, Ross Cvetojevic, Nick Diab, Momen Diddams, scott A. Dinkelaker, Aline N. Duis, Jeroen Eikenberry, stephen Ellis, simon Endo, Akira Figer, Donald F. Fitzgerald, Michael Gris-sanchez, itandehui Gross, simon Grossard, Ludovic Guyon, Olivier Haffert, sebastiaan Y. Halverson, samuel Harris, Robert J. He, Jinping Herr, tobias Hottinger, Philipp Huby, Elsa ireland, Michael Jenson-Clem, Rebecca Jewell, Jeffrey Jocou, Laurent Kraus, stefan Labadie, Lucas Lacour, sylvestre Laugier, Romain Lawniczuk, Katarzyna Lin, Jonathan Leifer, stephanie Leon-saval, sergio Martin, Guillermo Martinache, Frantz Martinod, Marc-Antoine Mazin, Benjamin A. Minardi, stefano Monnier, John D. Moreira, Reinan Mourard, Denis Nayak, Abani shankar Norris, Barnaby Obrzud, Ewelina Perraut, Karine Reynaud, François sallum, steph schiminovich, David schwab, Christian serbayn, Eugene soliman, sherif stoll, Andreas tang, Liang tuthill, Peter Vahala, Kerry Vasisht, Gautam Veilleux, sylvain Walter, Alexander B. Wollack, Edward J. Xin, Yinzi Yang, Zongyin Yerolatsitis, stephanos Zhang, Yang Zou, Chang-Ling Department of Astronomy California Institute of Technology PasadenaCA United States The CHARA Array of Georgia State University Mount Wilson Observatory Mount WilsonCA91203 United States CREOL The College of Optics and Photonics University of Central Florida OrlandoFL United States IPAC NASA Exoplanet Science Institute Jet Propulsion Laboratory California Institute of Technology PasadenaCA United States Steward Observatory University of Arizona TucsonAZ United States Institut de Planétologie et d'Astrophysique UGA CNRS France Katholieke Universiteit Leuven Belgium School of Physics The University of Sydney Australia Max Planck Institute for Extraterrestrial Physics Garching Germany Jet Propulsion Laboratory California Institute of Technology PasadenaCA United States Bright Photonics BV Eindhoven Netherlands Department of Astronomy and Astrophysics University of California Santa CruzCA United States Advanced Electronics and Photonics Research Centre National Research Council Canada Ottawa Canada Université Côte d’Azur Observatoire de la Côte d’Azur CNRS Laboratoire Lagrange France Dunlap Institute for Astronomy and Astrophysics University of Toronto Toronto Canada Electrical Computer and Energy Engineering Department of Physics University of Colorado BoulderCO United States Potsdam Germany PHIX Photonics Assembly Enschede Netherlands Australian Astronomical Optics Macquarie University NSW Australia Electrical Engineering Mathematics and Computer Science Delft University of Technology Delft Netherlands Center for Detectors Rochester Institute of Technology RochesterNY United States UCLA Physics & Astronomy Department Los AngelesCA United States ITEAM Research Institute Universitat Politècnica de València Valencia Spain MQ Photonics Research Centre Macquarie University NSW Australia XLIM Research Institute University of Limoges France Subaru Telescope National Astronomical Observatory of Japan National Institute of Natural Scien

Photonic technologies offer numerous functionalities that can be used to realize astrophotonic instruments. the most spectacular example to date is the EsO Gravity instrument at the Very Large telescope in Chile that combines the light-gathering power of four 8 m telescopes through a complex photonic interferometer. Fully integrated astrophotonic devices stand to offer critical advantages for instrument development, including extreme miniaturization when operating at the diffraction-limit, as well as integration, superior thermal and mechanical stabilization owing to the small footprint, and high replicability offering significant cost savings. Numerous astrophotonic technologies have been developed to address shortcomings of conventional instruments to date, including for example the development of photonic lanterns to convert from multimode inputs to single mode outputs, complex aperiodic fiber Bragg gratings to filter OH emission from the atmosphere, complex beam combiners to enable long baseline interferometry with for example, EsO Gravity, and laser frequency combs for high precision spectral calibration of spectrometers. Despite these successes, the facility implementation of photonic solutions in astronomical instrumentation is currently limited because of 1) low throughputs from coupling to fibers, coupling fibers to chips, propagation and bend losses, device losses, etc., 2) difficulties with scaling to large channel count devices needed for large bandwi.t.s and high resolutions, and 3) efficient integration of photonics with detectors, to name a few. in this roadmap, we identify 23 key areas that need further development. We outline the challenges and advances needed across those areas covering design tools, simulation capabilities, fabrication processes, the need for entirely new components, integration and hybridization and the characterization of devices. to realize these advances the astrophotonics community will have to work cooperatively with industr

关键词： Fiber Bragg gratings

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the southern Wide-field Gamma-ray Observatory 38

The Southern Wide-field Gamma-ray Observatory

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38th international Cosmic Ray Conference, iCRC 2023

作者： Conceição, Ruben Abreu, P. Albert, A. Alfaro, R. Alfonso, A. Álvarez, C. An, Q. Angüner, E.O. Arcaro, C. Arceo, R. Arias, s. Arnaldi, H. Assis, P. Ayala solares, H.A. Bakalova, A. Barres de Almeida, U. Batkovic, i. Bazo, J. Bellido, J. Belmont, E. BenZvi, s.Y. Bernal, A. Bian, W. Bigongiari, C. Bottacini, E. Brogueira, P. Bulik, t. Busetto, G. Caballero-Mora, K.s. Camarri, P. Campos, s. Cao, W. Cao, Z. Cao, Z. Capistrán, t. Cardillo, M. Carquin, E. Carramiñana, A. Castromonte, C. Chang, J. Chaparro, O. Chen, s. Chianese, M. Chiavassa, A. Chytka, L. Colallillo, R. Conceição, R. Consolati, G. Cordero, R. Costa, P.J. Cotzomi, J. Dasso, s. De Angelis, A. Desiati, P. Di Pierro, F. Di sciascio, G. Díaz Vélez, J.C. Dib, C. Dingus, B. Djuvsland, J. Dobrigkeit, C. Domingues Mendes, L.M. Dorigo, t. Doro, M. dos Reis, A.C. Du Vernois, M. Echiburú, M. Elsaesser, D. Engel, K. Ergin, t. Espinoza, F. Fang, K. Farfán Carreras, F. Fazzi, A. Feng, C. Feroci, M. Fraija, N. Fraija, s. Franceschini, A. Franco, G.F. Funk, s. Garcia, s. García-González, J.A. Garfias, F. Giacinti, G. Gibilisco, L. Glombitza, J. Goksu, H. Gong, G. González, B.s. Gonzalez, M.M. Goodman, J. Gu, M. Guarino, F. Gupta, s. Haist, F. Hakobyan, H. Han, G. Hansen, P. Harding, J.P. Helo, J. Herzog, i. Hidalgo, H.D. Hinton, J. Hu, K. Huang, D. Huentemeyer, P. Hueyotl-Zahuantitla, F. iriarte, A. isakovic, J. isolia, A. Joshi, V. Juryöek, J. Kaci, s. Kieda, D. La Monaca, F. La Mura, G. Lang, R.G. Laspiur, R. Lavitola, L. Lee, J. Leitl, F. Lessio, L. Li, C. Li, J. Li, K. Li, t. Liberti, B. Lin, s. Liu, D. Liu, J. Liu, R. Longo, F. Luo, Y. Lv, J. Macerata, E. Malone, K. Mandat, D. Manganaro, M. Mariani, M. Mariazzi, A. Mariotti, M. Marrodan, t. Martinez, J. Martínez-Huerta, H. Medina, s. Melo, D. Mendes, L.F. Meza, E. Miceli, D. Miozzi, s. Mitchell, A. Molinario, A. Morales-Olivares, O.G. Moreno, E. Morselli, A. LIP - Laboratório de Instrumentação e Física Experimental de Partículas Lisbon Portugal Departamento de Física Instituto Superior Técnico Universidade de Lisboa Lisbon Portugal Laboratório de Instrumentação de Física Experimental de Partículas - LIP Av. Prof. Gama Pinto 2 Lisboa1649-003 Portugal Departamento de Física Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1 Lisboa1049-001 Portugal Physics Division Los Alamos National Laboratory Los AlamosNM United States Instituto de Física Universidad Nacional Autónoma de México Circuito de la Investigación Científica C.U. A. Postal 70-364 Cd. de México04510 Mexico Universidad de La Serena Chile Facultad de Ciencias en Física y Matemáticas Universidad Autónoma de Chiapas Chiapas Tuxtla GutiérrezC. P. 29050 Mexico School of physical science University of Science and Technology of China 96 Jinzhai Road Anhui Hefei230026 China TÜBITAK Research Institute for Fundamental Sciences Gebze41470 Turkey INFN - Sezione di Padova PadovaI-35131 Italy Universidad Nacional de San Antonio Abad del Cusco Av. de la Cultura Nro. 733 Cusco Peru Av. E. Bustillo 9500 Rio Negro San Carlos de Bariloche8400 Argentina Department of Physics Pennsylvania State University University ParkPA United States Institute of Physics The Czech Academy of Sciences Prague Czech Republic Rua Dr. Xavier Sigaud 150 Rio de Janeiro22290-180 Brazil Universidade de São Paulo Instituto de Astronomia Geofísica e Ciências Atmosféricas Departamento de Astronomia Rua do Matão 1226 São Paulo05508-090 Brazil Università di Padova PadovaI-35131 Italy Pontificia Universidad Católica del Perú Av. Universitaria 1801 Lima San Miguel15088 Peru Universidad Nacional de San Agustin de Arequipa Santa Catalina Nro. 117 Arequipa Peru University of Adelaide AdelaideSA Australia Department of Physics and Astronomy University of Rochester RochesterNY United States Instituto de Astronomía Universidad Nacional Autónoma de México

the southern Wide-field Gamma-ray Observatory (sWGO) is an R&D project to plan and design the next observatory to detect gamma rays in the southern hemisphere. the experiment, planned to be placed at an altitude greater than 4400 m, is primarily based on water Cherenkov detectors units and is expected to measure gamma rays from a few hundred GeV up to the PeV scale. sWGO will complement CtA and the existing ground-based particle detectors of the Northern Hemisphere, namely HAWC and LHAAsO, having a rich science programme. the collaboration is highly invested in evaluating different detector and array configurations, prototyping, and site search. in this presentation, i shall present an overview of the project’s activities, achievements and future plans. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Cosmic ray detectors

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Manufacture Details of a sWGO Double-Layer tank Design - Water Cherenkov Detector Prototype 38

Manufacture Details of a SWGO Double-Layer Tank Design - Wat...

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38th international Cosmic Ray Conference, iCRC 2023

作者： Bellido, José schneider, Michael Abreu, P. Albert, A. Alfaro, R. Alfonso, A. Álvarez, C. An, Q. Angüner, E.O. Arcaro, C. Arceo, R. Arias, s. Arnaldi, H. Assis, P. Ayala solares, H.A. Bakalova, A. Barres de Almeida, U. Batković, i. Bazo, J. Bellido, J. Belmont, E. BenZvi, s.Y. Bernal, A. Bian, W. Bigongiari, C. Bottacini, E. Brogueira, P. Bulik, t. Busetto, G. Caballero-Mora, K.s. Camarri, P. Campos, s. Cao, W. Cao, Z. Cao, Z. Capistrán, t. Cardillo, M. Carquin, E. Carramiñana, A. Castromonte, C. Chang, J. Chaparro, O. Chen, s. Chianese, M. Chiavassa, A. Chytka, L. Colallillo, R. Conceição, R. Consolati, G. Cordero, R. Costa, P.J. Cotzomi, J. Dasso, s. De Angelis, A. Desiati, P. Di Pierro, F. Di sciascio, G. Díaz Vélez, J.C. Dib, C. Dingus, B. Djuvsland, J. Dobrigkeit, C. Domingues Mendes, L.M. Dorigo, t. Doro, M. dos Reis, A.C. Du Vernois, M. Echiburú, M. Elsaesser, D. Engel, K. Ergin, t. Espinoza, F. Fang, K. Farfán Carreras, F. Fazzi, A. Feng, C. Feroci, M. Fraija, N. Fraija, s. Franceschini, A. Franco, G.F. Funk, s. Garcia, s. García-González, J.A. Garfias, F. Giacinti, G. Gibilisco, L. Glombitza, J. Goksu, H. Gong, G. González, B.s. Gonzalez, M.M. Goodman, J. Gu, M. Guarino, F. Gupta, s. Haist, F. Hakobyan, H. Han, G. Hansen, P. Harding, J.P. Helo, J. Herzog, i. Hidalgo, H.D. Hinton, J. Hu, K. Huang, D. Huentemeyer, P. Hueyotl-Zahuantitla, F. iriarte, A. isaković, J. isolia, A. Joshi, V. Juryšek, J. Kaci, s. Kieda, D. La Monaca, F. La Mura, G. Lang, R.G. Laspiur, R. Lavitola, L. Lee, J. Leitl, F. Lessio, L. Li, C. Li, J. Li, K. Li, t. Liberti, B. Lin, s. Liu, D. Liu, J. Liu, R. Longo, F. Luo, Y. Lv, J. Macerata, E. Malone, K. Mandat, D. Manganaro, M. Mariani, M. Mariazzi, A. Mariotti, M. Marrodan, t. Martinez, J. Martínez-Huerta, H. Medina, s. Melo, D. Mendes, L.F. Meza, E. Miceli, D. Miozzi, s. Mitchell, A. Molinario, A. Morales-Olivares, O.G. The University of Adelaide North TerraceSA Australia University of Maryland College ParkMD United States Laboratório de Instrumentação e Física Experimental de Partículas - LIP Av. Prof. Gama Pinto 2 Lisboa1649-003 Portugal Departamento de Física Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1 Lisboa1049-001 Portugal Physics Division Los Alamos National Laboratory Los AlamosNM United States Instituto de Física Universidad Nacional Autónoma de México Circuito de la Investigación científica C.U. A. Postal 70-364 Cd. de México04510 Mexico Universidad de La Serena Chile Facultad de Ciencias en Física y Matemáticas Universidad Autónoma de Chiapas Chiapas Tuxtla GutiérrezC. P. 29050 Mexico School of physical science University of Science and Technology of China 96 Jinzhai Road Anhui Hefei230026 China TÜBİTAK Research Institute for Fundamental Sciences Gebze41470 Turkey INFN - Sezione di Padova PadovaI-35131 Italy Universidad Nacional de San Antonio Abad del Cusco Av. de la Cultura Nro. 733 Cusco Peru Av. E. Bustillo 9500 Rio Negro San Carlos de Bariloche8400 Argentina Department of Physics Pennsylvania State University University ParkPA United States Institute of Physics The Czech Academy of Sciences Prague Czech Republic Rua Dr. Xavier Sigaud 150 Rio de Janeiro22290-180 Brazil Universidade de São Paulo Instituto de Astronomia Geofísica e Ciências Atmosféricas Departamento de Astronomia Rua do Matão 1226 São Paulo05508-090 Brazil Università di Padova PadovaI-35131 Italy Pontificia Universidad Católica del Perú Av. Universitaria 1801 Lima San Miguel15088 Peru Universidad Nacional de San Agustin de Arequipa Santa Catalina Nro. 117 Arequipa Peru University of Adelaide AdelaideSA Australia Department of Physics and Astronomy University of Rochester RochesterNY United States Instituto de Astronomía Universidad Nacional Autónoma de México Circuito Exterior C.U. A. Postal 70-264 Cd. de México04510 Mexico Ts

Water-Cherenkov detectors (WCD) have been manufactured in Australia by the company AQUAMAtE as part of the RD activities for sWGO. they consist of a steel tank frame with a bladder on its interior satisfying the sWGO double-layer tank design. tanks and bladders have been custom designed to optimally accommodate the bladder inside the tank and with minimal material usage. they are delivered in compact boxes that are easy to transport. these boxes are designed to fit 24 tanks in a 20-foot container. the double-layer tank design has introduced new features to improve the discrimination between gamma-rays and cosmic rays. some of these features created challenges for the manufacturing. some units have been delivered to one of Peru’s candidate sites at 4800 m and to Mexico (the HAWC Observatory, 4100 m) for prototype tests in real conditions. in this contribution we will describe manufacturing and construction details of the first sWGO prototype WCD. these details were envisaged to facilitate: the transport of the units, the assembly, the deployment and maintenance activities of the detectors. Furthermore, the units need to be resistant to strong winds, rain, snow and *** costs are scalable with the detector volume. this information could be of interest to other Observatories that are in RD phase, such as the Global Cosmic Ray Observatory (GCOs) for the study of the highest-energy particles in the Universe and the tau Air shower Mountain-Based Observatory (tAMBO) for the search of PeV neutrinos. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Cosmic rays

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Development of Decision support system for Promotion Assessment

Development of Decision Support System for Promotion Assessm...

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international Conference on Computing for sustainable Global Development (iNDiACom)

作者： sanjeev Kumar shivangi Gupta Scientist ‘E’ D.M.S.R.D.E. D.R.D.O. Kanpur INDIA Computer Science and Engineering U.I.E.T. C.S.J.M.U. Kanpur INDIA

For the growth of any organization the principal shareholder are its staff members and to utilize their talent efficiently, we uses criteria, which is based on profession skill and behavioural aspects of staff. this system can further be used to predict those need to have an appropriate methodology for their promotion assessment, which is efficient and also one which increases confidence in their selection process. there is a need for organization to change its primitive manual methods and adapt the new ones. to facilitate decision makers in making decision a web based Decision support system is developed using the Model View Controller design. the proposed system staffs that need training program/ domain technical skill and also predict those staffs that have higher chances of promotion in next assessment. the system is implemented using Codeigniter framework with MysQL database. technologies such as jQuery, ***, HtML5 and Css were used in order to construct the interface and frontend of the system. the model is tested on the sample taken from the Defence Lab.

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Prediction of solar energetic events impacting space weather conditions

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Advances in space Research 2024年

作者： Georgoulis, Manolis K. Yardley, stephanie L. Guerra, Jordan A. Murray, sophie A. Ahmadzadeh, Azim Anastasiadis, Anastasios Angryk, Rafal Aydin, Berkay Banerjee, Dipankar Barnes, Graham Bemporad, Alessandro Benvenuto, Federico Bloomfield, D. shaun Bobra, Monica Campi, Cristina Camporeale, Enrico DeForest, Craig E. Emslie, A. Gordon Falconer, David Feng, Li Gan, Weiqun Green, Lucie M. Guastavino, sabrina Hapgood, Mike Kempton, Dustin Kitiashvili, irina Kontogiannis, ioannis Korsos, Marianna B. Leka, K.D. Massa, Paolo Massone, Anna Maria Nandy, Dibyendu Nindos, Alexander Papaioannou, Athanasios Park, sung-Hong Patsourakos, spiros Piana, Michele Rawafi, Nour E. sadykov, Viacheslav M. toriumi, shin Vourlidas, Angelos Wang, Haimin L. Wang, Jason t. Whitman, Kathryn Yan, Yihua Zhukov, Andrei N. Research Center for Astronomy and Applied Mathematics of the Academy of Athens Athens11527 Greece Department of Mathematics Physics and Electrical Engineering Northumbria University Newcastle upon TyneNE1 8ST United Kingdom Department of Meteorology University of Reading ReadingRG6 6ET United Kingdom Paseo Manuel de Lardizabal 4 San Sebastián20018 Spain CIRES University of Colorado BoulderCO80309 United States NOAA Space Weather Prediction Center BoulderCO80305 United States School of Cosmic Physics Dublin Institute for Advanced Studies Dunsink Observatory DublinD15 XR2R Ireland Computer Science Department Georgia State University AtlantaGA30303 United States National Observatory of Athens Penteli15236 Greece Uttarakhand Nainital263001 India NorthWest Research Associates BoulderCO80301 United States INAF Turin Astrophysical Observatory via Osservatorio 20 10025 Pino Torinese Torino Italy MIDA Dipartimento di Matematica Università di Genova via Dodecaneso 35 16146 Genova Italy State of California Office of Data and Innovation 401 I Street Ste 200 SacramentoCA95814 United States Southwest Research Institute BoulderCO80302 United States Department of Physics & Astronomy Western Kentucky University Bowling GreenKY42101 United States Center for Space Plasma and Aeronomic Research University of Alabama in Huntsville HuntsvilleAL35899 United States NASA/Marshall Space Flight Center HuntsvilleAL35812 United States Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese Academy of Sciences Nanjing210023 China Mullard Space Science Laboratory University College London Holmbury St. MaryRH5 6NT United Kingdom University of Chinese Academy of Sciences Nanjing211135 China Visiting Scientist RAL Space STFC Rutherford Appleton Laboratory Oxfordshire DidcotOX11 0QX United Kingdom NASA Ames Research Center Moffett FieldCA94035 United States An der Sternwarte 16 Potsdam14482 Germany Dipartime

Aiming to assess the progress and current challenges on the formidable problem of the prediction of solar energetic events since the COsPAR/ international Living With a star (iLWs) Roadmap paper of schrijver et al. (2015), we attempt an overview of the current status of global research efforts. By solar energetic events we refer to flares, coronal mass ejections (CMEs), and solar energetic particle (sEP) events. the emphasis, therefore, is on the prediction methods of solar flares and eruptions, as well as their associated sEP manifestations. this work complements the COsPAR international space Weather Action teams (isWAt) review paper on the understanding of solar eruptions by Linton et al. (2023) (hereafter, isWAt review papers are conventionally referred to as ’Cluster’ papers, given the isWAt structure). Understanding solar flares and eruptions as instabilities occurring above the nominal background of solar activity is a core solar physics problem. We show that effectively predicting them stands on two pillars: physics and statistics. With statistical methods appearing at an increasing pace over the last 40 years, the last two decades have brought the critical realization that data science needs to be involved, as well, as volumes of diverse ground- and space-based data give rise to a Big Data landscape that cannot be handled, let alone processed, with conventional statistics. Dimensionality reduction in immense parameter spaces with the dual aim of both interpreting and forecasting solar energetic events has brought artificial intelligence (Ai) methodologies, in variants of machine and deep learning, developed particularly for tackling Big Data problems. With interdisciplinarity firmly present, we outline an envisioned framework on which statistical and Ai methodologies should be verified in terms of performance and validated against each other. We emphasize that a homogenized and streamlined method validation is another open challenge. the performance of the

关键词： solar energy

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