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(INVITED) Roadmap on perovskite nanophotonics

Optical Materials: X 2023年 17卷

作者： Soci, Cesare Adamo, Giorgio Cortecchia, Daniele Wang, Kaiyang Xiao, Shumin Song, Qinghai Schall-Giesecke, Anna Lena Cegielski, Piotr J. Lemme, Max C. Gerace, Dario Sanvitto, Daniele Tian, Jingyi Tonkaev, Pavel A. Makarov, Sergey V. Kivshar, Yuri S. Jimenez Gordillo, Oscar A. Melloni, Andrea Pushkarev, Anatoly P. D'Amato, Marianna Lhuillier, Emmanuel Bramati, Alberto Centre for Disruptive Photonic Technologies TPI Nanyang Technological University 21 Nanyang Link Singapore 63737 Singapore Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore Istituto Italiano di Tecnologia Milan20133 Italy Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Harbin Institute of Technology Shenzhen Shenzhen518055 China AMO GmbH Advanced Microelectronic Center Aachen Otto-Blumenthal-Str. 25 Aachen52074 Germany Chair of Electronic Devices RWTH Aachen University Otto-Blumenthal-Str. 2 Aachen52074 Germany Dipartimento di Fisica Università di Pavia via Bassi 6 Pavia27100 Italy CNR-Nanotec Institute of Nanotechnology via Monteroni Lecce73100 Italy Australian National University Canberra ACT 2601 Australia ITMO University St. Petersburg191002 Russia Dipartimento di Elettronica Informazione e Bioingegneria Politecnico di Milano Via Ponzio 34/5 Milano20133 Italy Laboratoire Kastler Brossel Sorbonne Universitè CNRS ENS-PSL Research University College de France 4 place Jussieu Cedex 05 Paris75252 France Sorbonne Université CNRS Institut des NanoSciences de Paris INSP ParisF-75005 France Qingdao Innovation and Development Center Harbin Engineering University Shandong Qingdao266000 China

Perovskite nanophotonics is a rapidly emerging field that combines research in synthesis of materials with novel properties and in photonics design strategies. Starting from early pioneering works on halide perovskite compounds that showed great potential across optoelectronics and photonics applications, the field is ready to blossom by combining recent advances in synthetic material design, the development of bottom-up or top-down nanostructuring approaches and new concepts in nanohophotonic engineering of light matter interaction at the nanoscale, with a chance of having real impact on current and future technologies. This roadmap is a collective outlook from pioneers in the field of perovskite nanophotonics that encompasses a number of the emerging research areas with the aim of identifying current and future challenges and highlighting the most promising research directions. It will be of interest and serve as a reference to a wide audience of physicists, chemists and engineers with interest in perovskite nanophotonics. © 2022

关键词： Quantum optics

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Wi-Fi RTT based indoor positioning with dynamic weighted multidimensional scaling

Wi-Fi RTT based indoor positioning with dynamic weighted mul...

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International Conference on Indoor Positioning and Indoor Navigation (IPIN)

作者： Shuo Yan Haiyong Luo Fang Zhao Wenhua Shao Zhaohui Li Antonino Crivello School of Software Engineering Beijing University of Posts and Telecommunications Beijing China Beijing Key Laboratory of Mobile Computing and Pervasive Device Institute of Computing Technology Chinese Academy of Sciences Beijing China School of Software Engineering School of Information and Communicaton Engineering Beijing University of Posts and Telecommunications Beijing China Institute of Information Science and Technologies CNR Pisa Italy

Indoor positioning methods have appeared to fulfill indoor location-based systems requirements, it is still a great challenge to obtain high precision results of indoor positioning. For example, fingerprint-based methods reach high performances but have a high cost for to survey the environment in order to collect sample and to maintain location fingerprints. systems based on log-distance path loss model suffer from the multi-path problem and the adjustment of Wi-Fi station powers, and achieve low accuracy in complex environments. The appearance of fine time measurement protocol supported Wi-Fi access points provide a novel way to develop accurate indoor positioning algorithms. Considering the influence of the indoor multi-path effect to the fine time measurement ranging accuracy, we propose a multi-dimensional scaling based positioning algorithm to reduce the impact of ranging errors. We leverage the multidimensional scaling algorithm to estimate the rough position of positioning clients. Successively, adjusting the weight of fine time measurement ranging, we optimize the positioning results with the application of a SMACOF strategy. Through experiments conducted in a complex real-world scenario, we demonstrate that the system proposed reach an accuracy below the 2.5 meters at 80% of the cases.

关键词： Estimation Wireless fidelity Distance measurement Fingerprint recognition Wireless communication Position measurement Time measurement

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Digital Reference: a quasi-standard for digitalization in the domain of semiconductor supply chains

Digital Reference: a quasi-standard for digitalization in th...

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Industrial Cyber-Physical systems (ICPS)

作者： Hans Ehm Erwin Schoitsch Jan Wytze van der Weit Nour Ramzy Lanyingzhu Luo Daniel Louis Gruetzner Infineon Technologies AG Munich Germany Austrian Institute of Technology Vienna Austria Philips Consumer Lifestyle Philips Drachten Netherlands Faculty of Electrical Engineering and Computer Science Leibniz University Hannover Germany Faculty of Information System The Technical University of Munich Munich Germany EPF École d'ingénieur-e-s Sceaux France

ISBN: (数字)9781728163895

ISBN: (纸本)9781728163901

This paper is about the installation of trust in the Semantic Web content of the Digital Reference (DR). The DR was developed in H2020/ECSEL/Productive4.0, which contains ontologies to model production and Cyber Physical systems addressing the whole industrial automation and control area. It should serve as a quasi-standard for digitalization in the domain of semiconductors and corresponding supply chains to overcome the partial incompatibility problem of existing *** Web is a success story in the B2C (Business to consumer) environment as it is understandable for both humans and machines alike. To transfer this success of easy data exchange into the complex industrial B2B (Business to business) environment, a much higher quality is required - a standardization of the classes and properties. The confidence in standards usually comes from human verification, validation and confirmation, which has the disadvantage of being slow. Machine validation could be faster but often lacks confidence. Thus, how can trust be installed to ensure the "correctness" of the used classes and properties in a speedy process?We propose a human and machine blended approach based on peer review and Blockchain technology built on decentralized peer-to-peer networks to solve this problem. The consensus process combines transparency, traceability, immutability and speed of Blockchain with the fidelity of human experts.

关键词： Standards IEC Standards Semantic Web Safety Industries Ontologies Supply chains

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The PLATO mission

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Experimental Astronomy 2025年第3期59卷 1-111页

作者： Rauer, Heike Aerts, Conny Cabrera, Juan Deleuil, Magali Erikson, Anders Gizon, Laurent Goupil, Mariejo Heras, Ana Walloschek, Thomas Lorenzo-Alvarez, Jose Marliani, Filippo Martin-Garcia, César Mas-Hesse, J. Miguel O’Rourke, Laurence Osborn, Hugh Pagano, Isabella Piotto, Giampaolo Pollacco, Don Ragazzoni, Roberto Ramsay, Gavin Udry, Stéphane Appourchaux, Thierry Benz, Willy Brandeker, Alexis Güdel, Manuel Janot-Pacheco, Eduardo Kabath, Petr Kjeldsen, Hans Min, Michiel Santos, Nuno Smith, Alexis Suarez, Juan-Carlos Werner, Stephanie C. Aboudan, Alessio Abreu, Manuel Acuña, Lorena Adams, Moritz Adibekyan, Vardan Affer, Laura Agneray, François Agnor, Craig Aguirre Børsen-Koch, Victor Ahmed, Saad Aigrain, Suzanne Al-Bahlawan, Ashraf Alcacera Gil, Ma de los Angeles Alei, Eleonora Alencar, Silvia Alexander, Richard Alfonso-Garzón, Julia Alibert, Yann Allende Prieto, Carlos Almeida, Leonardo Alonso Sobrino, Roi Altavilla, Giuseppe Althaus, Christian Alvarez Trujillo, Luis Alonso Amarsi, Anish Ammler-von Eiff, Matthias Amôres, Eduardo Andrade, Laerte Antoniadis-Karnavas, Alexandros António, Carlos Aparicio del Moral, Beatriz Appolloni, Matteo Arena, Claudio Armstrong, David Aroca Aliaga, Jose Asplund, Martin Audenaert, Jeroen Auricchio, Natalia Avelino, Pedro Baeke, Ann Baillié, Kevin Balado, Ana Ballber Balagueró, Pau Balestra, Andrea Ball, Warrick Ballans, Herve Ballot, Jerome Barban, Caroline Barbary, Gaële Barbieri, Mauro Barceló Forteza, Sebastià Barker, Adrian Barklem, Paul Barnes, Sydney Barrado Navascues, David Barragan, Oscar Baruteau, Clément Basu, Sarbani Baudin, Frederic Baumeister, Philipp Bayliss, Daniel Bazot, Michael Beck, Paul G. Belkacem, Kevin Bellinger, Earl Benatti, Serena Benomar, Othman Bérard, Diane Bergemann, Maria Bergomi, Maria Bernardo, Pierre Biazzo, Katia Bignamini, Andrea Bigot, Lionel Billot, Nicolas Binet, Martin Biondi, David Biondi, Federico Birch, Aaron C. Bitsch, Bertram Bluhm Ceballos, Paz Victoria Bódi, Attila Bognár, Zsófia Boisse, Isabelle Bolmont, Emeline Bonanno, Alfio Bonavita, Institut für Planetenforschung Deutsches Zentrum für Luft- und Raumfahrt DLR Rutherfordstrasse 2 Berlin 12489 Germany Fachbereich Geowissenschaften Institut für Geologische Freie Universität Berlin Malteserstr. 74-100 Berlin 12249 Germany Institute of Astronomy KU Leuven Leuven Belgium CNRS CNES LAM Aix Marseille University Marseille France Max Planck Institute for Solar System Research Göttingen Germany LESIA Paris Observatory PSL University Sorbonne University Paris Cité University CNRS Meudon France ESTEC European Space Agency Noordwijk Netherlands ESAC European Space Agency Madrid Spain Centro de Astrobiología CSIC-INTA Campus ESAC Madrid Spain Center for Space and Habitability University of Bern Bern Switzerland INAF - Osservatorio Astrofisico di Catania Catania Italy Department of Physics and Astronomy University of Padua Padua Italy Department of Physics University of Warwick Coventry United Kingdom Astronomical Observatory of Padova INAF - Italian National Institute for Astrophysics Padua Italy Armagh Observatory and Planetarium College Hill Armagh United Kingdom Geneve Observatory University of Geneve Geneve Switzerland IAS University of Paris-Saclay Orsay France AlbaNove University Centre Stockholm University Stockholm Sweden Department of Astrophysics University of Vienna Vienna Austria Department of Astronomy University of Sao Paulo Sao Paulo Brazil Astronomical Institute of the Czech Academy of Sciences Ondřejov Czech Republic Department of Physics and Astronomy Aarhus University Aarhus Denmark Institute for Space Research SRON Leiden Netherlands Instituto de Astrofísica e Ciências do Espaço CAUP Universidade do Porto Porto Portugal Departamento de Física e Astronomia Faculdade da Ci ncias Universidade do Porto Porto Portugal Mullard Space Science Laboratory University College London Holmbury Saint Mary United Kingdom Dept. Theoretical Physics and the Cosmos University of Granada Granada Spain Centre for Plan

PLATO (PLAnetary Transits and Oscillations of stars) is ESA’s M3 mission designed to detect and characterise extrasolar planets and perform asteroseismic monitoring of a large number of stars. PLATO will detect small planets (down to <2REarth) around bright stars (<11 mag), including terrestrial planets in the habitable zone of solar-like stars. With the complement of radial velocity observations from the ground, planets will be characterised for their radius, mass, and age with high accuracy (5%, 10%, 10% for an Earth-Sun combination respectively). PLATO will provide us with a large-scale catalogue of well-characterised small planets up to intermediate orbital periods, relevant for a meaningful comparison to planet formation theories and to better understand planet evolution. It will make possible comparative exoplanetology to place our Solar system planets in a broader context. In parallel, PLATO will study (host) stars using asteroseismology, allowing us to determine the stellar properties with high accuracy, substantially enhancing our knowledge of stellar structure and evolution. The payload instrument consists of 26 cameras with 12cm aperture each. For at least four years, the mission will perform high-precision photometric measurements. Here we review the science objectives, present PLATO‘s target samples and fields, provide an overview of expected core science performance as well as a description of the instrument and the mission profile towards the end of the serial production of the flight cameras. PLATO is scheduled for a launch date end 2026. This overview therefore provides a summary of the mission to the community in preparation of the upcoming operational phases. © The Author(s) 2025.

关键词： Asteroseismology Exoplanets PLATO mission

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PHD: A Deep Learning Based Human Detection Framework for Panoramic Videos

PHD: A Deep Learning Based Human Detection Framework for Pan...

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International Conference on Wireless Communications and Signal Processing (WCSP)

作者： Jinting Tang Zhenhui Chen Yongkai Huo Peichang Zhang National Engineering Laboratory for Big Data System Computing Technology Research Institute for Future Media Computing School of Computer Science and Software Engineering Shenzhen University Shenzhen China The College of Information Engineering Shenzhen University Shenzhen China

Panoramic video has attracted substantial research attention as the coming video format. It is capable of providing 360 degree immersive experience of omnidirectional visual information. State-of-the-art detection networks may fail to detect humans on spherical images, which are normally represented in deformed rectangular shapes. In this paper, we propose a socalled Panoramic Human Detection (PHD) scheme to address the task of human detection in panoramic videos. Moreover, the PHD method is designed to detect humans by extracting multiple overlapping sub-images from each integral spherical image, where three-dimensional rotation of spherical images is employed to ensure consistency of sub-images. Two detection box filters are designed for removing redundant boxes. Our PHD method is capable of accomplishing the task of human detection in various panoramic video types. Experiments prove that our PHD method outperforms the baseline by 35% and 48.6% in terms of precision and recall, respectively.

关键词： Videos Task analysis Feature extraction Matrices Visualization Strain Transmission line matrix methods

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Approach to Searching software Source Code with Graph Embedding

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Ruan Jian Xue Bao/Journal of software 2019年第5期30卷 1481-1497页

作者： Ling, Chun-Yang Zou, Yan-Zhen Lin, Ze-Qi Xie, Bing Zhao, Jun-Feng Key Laboratory of High Confidence Software Technologies Peking University Ministry of Education Beijing100871 China School of Electronics Engineering and Computer Science Peking University Beijing100871 China Peking University Information Technology Institute Tianjin Binhai Tianjin300450 China

Searching software source code and locating software's API (application program interface) are important research issues in software engineering. As software projects are becoming more and more complex, existing search tools mainly face the following two challenges. First, more accurate search results are required in natural language question based search process. Second, the relationships between API are required to illustrate so that these API' underlying logic and usage scenarios are able to be understood more quickly. In this study, an ovel approach is proposed to searching a software project's API based on graph embedding. It aims to improve the accuracy of natural language based code graph search. A software project's code graph is built automatically from its source code and they are represented through graph embedding. For a natural language question, a code-connected subgraph, composed by relevant API and their associated relationships, are returned as the best answer. In experiments, Apache Lucene and POI projects are selected as examples to perform some API search tasks. Experimental results show that the proposed approach improves F1-score by 10% than existing shortest path based approach, while reduces average response time significantly. © Copyright 2019, institute of software, the Chinese Academy of Sciences. All rights reserved.

关键词： Graph embeddings

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Routing Algorithm for Reducing Packet Loss in Mobile WSN

Routing Algorithm for Reducing Packet Loss in Mobile WSN

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International Conference on Computer Network, Electronic and Automation (ICCNEA)

作者： Hao Li Xin He Shuang Ding School of Computer and Information Engineering Henan University Kaifeng Henan China Institute of Intelligent Network System Henan University Kaifeng Henan China School of Software Henan University Kaifeng Henan China College of Electronics and Information Engineering Tongji University Shanghai China

In wireless sensor networks (WSN), sensor nodes have limited energy, and the routing of wireless sensor networks must solve the core problems of reducing power consumption and prolonging the network life cycle. At present, the mainstream of routing protocol is clustering routing protocol, and the most representative routing algorithm of this protocol is LEACH protocol. The traditional LEACH protocol is not suitable for mobile node. LEACH-M protocol is a kind of mobile WSN routing protocol which optimized node movement on the basis of LEACH protocol. This paper proposes a cluster protocol Leach-MON based on mobile WSN for the loss of LEACH-M packets, which adds the idea of on-demand routing to the mobile sensor network. The throughput and energy consumption of the nodes are fully considered, simulation under NS3 Network simulator, and the packet loss was significantly lower than LEACH-M.

关键词： Routing Wireless sensor networks Wireless communication Routing protocols Packet loss

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RIS-Empowered Integrated Location Sensing and Communication with Superimposed Pilots

arXiv

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arXiv 2025年

作者： Xia, Wenchao Zhao, Ben Tang, Wankai Zhu, Yongxu Wong, Kai-Kit Lambotharan, Sangarapillai Shin, Hyundong Jiangsu Key Laboratory of Wireless Communications and IoT China Engineering Research Center of Health Service System Based on Ubiquitous Wireless Networks Ministry of Education Nanjing University of Posts and Telecommunications Nanjing210003 China National Mobile Communications Research Laboratory Southeast University Nanjing210096 China Department of Electronic and Electrical Engineering University College London LondonWC1E 7JE United Kingdom Department of Electronic Engineering Kyung Hee University Gyeonggi-do Yongin-si17104 Korea Republic of Institute for Digital Technologies Loughborough University LondonE20 3BS United Kingdom Department of Electronics and Information Convergence Engineering Kyung Hee University 1732 Deogyeong-daero Giheung-gu Gyeonggi-do Yongin-si17104 Korea Republic of

In addition to enhancing wireless communication coverage quality, reconfigurable intelligent surface (RIS) technique can also assist in positioning. In this work, we consider RIS-assisted superimposed pilot and data transmission without the assumption availability of prior channel state information and position information of mobile user equipments (UEs). To tackle this challenge, we design a frame structure of transmission protocol composed of several location coherence intervals, each with pure-pilot and data-pilot transmission durations. The former is used to estimate UE locations, while the latter is time-slotted, duration of which does not exceed the channel coherence time, where the data and pilot signals are transmitted simultaneously. We conduct the Fisher information matrix (FIM) analysis and derive Cramér-Rao bound (CRB) for the position estimation error. The inverse fast Fourier transform (IFFT) is adopted to obtain the estimation results of UE positions, which are then exploited for channel estimation. Furthermore, we derive the closed-form lower bound of the ergodic achievable rate of superimposed pilot (SP) transmission, which is used to optimize the phase profile of the RIS to maximize the achievable sum rate using the genetic algorithm. Finally, numerical results validate the accuracy of the UE position estimation using the IFFT algorithm and the superiority of the proposed SP scheme by comparison with the regular pilot scheme. © 2025, CC BY.

关键词： Signaling

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Organizational patterns between developers and testers : Investigating testers' autonomy and role identity 20

Organizational patterns between developers and testers : Inv...

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20th International Conference on Enterprise information systems, ICEIS 2018

作者： Doležel, Michal Felderer, Michael Department of Information Technologies University of Economics Prague Czech Republic Institute of Computer Science University of Innsbruck A-Innsbruck Austria Department of Software Engineering Blekinge Institute of Technology Karlskrona Sweden

ISBN: (纸本)9789897582981

This paper deals with organizational patterns (configurations, set-ups) between developers/programmers and testers. We firstly discuss the key differences between these two information systems Development (ISD) occupations. Highlighting the origin of inevitable disagreements between them, we reflect on the nature of the software testing field that currently undergoes an essential change under the increasing influence of agile ISD approaches and methods. We also deal with the ongoing professionalization of software testing. More specifically, we propose that the concept of role identity anchored in (social) identity theory can be applied to the profession of software testers, and their activities studied accordingly. Furthermore, we conceptualize three organizational patterns (i.e. isolated testers, embedded testers, and eradicated testers) based on our selective literature review of research and practice sources in information systems (IS) and software engineering (SE) disciplines. After summarizing the key industrial challenges of these patterns, we conclude the paper by calling for more research evidence that would demonstrate the viability of the recently introduced novel organizational models. We also argue that especially the organizational model of "combined software engineering", where the roles of programmers and testers are reunited into a single role of "software engineer", deserves a closer attention of IS and SE researchers in the future. © 2018 by SCITEPRESS - Science and Technology Publications, Lda.

关键词： software testing

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A Light Dual-Task Neural Network for Haze Removal

arXiv

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arXiv 2019年

作者： Zhang, Yu Wang, Xinchao Bi, Xiaojun Tao, Dacheng IEEE College of Information and Communication Engineering Harbin Engineering University Heilongjiang150001 China UBTECH Sydney Artificial Intelligence Centre and the School of Information Technologies Faculty of Engineering and Information Technologies University of Sydney 6 Cleveland St DarlingtonNSW2008 Australia School of Software and Advanced Analytics Institute University of Technology Sydney 15 Broadway UltimoNSW2007 Australia Stevens Institute of Technology HobokenNJ07030 United States College of Information and Communication Engineering Harbin Engineering University Heilongjiang150001 China UBTECH Sydney Artificial Intelligence Centre School of Information Technologies Faculty of Engineering and Information Technologies University of Sydney 6 Cleveland St DarlingtonNSW2008 Australia

ingle-image dehazing is a challenging problem due to its ill-posed nature. Existing methods rely on a suboptimal two-step approach, where an intermediate product like a depth map is estimated, based on which the haze-free image is subsequently generated using an artificial prior formula. In this paper, we propose a light dual-task Neural Network called LDTNet that restores the haze-free image in one shot. We use transmission map estimation as an auxiliary task to assist the main task, haze removal, in feature extraction and to enhance the generalization of the network. In LDTNet, the haze-free image and the transmission map are produced simultaneously. As a result, the artificial prior is reduced to the smallest extent. Extensive experiments demonstrate that our algorithm achieves superior performance against the state-of-the-art methods on both synthetic and real-world images. Copyright © 2019, The Authors. All rights reserved.

关键词： Image reconstruction

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