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1st International Symposium on Benchmarking, Measuring, and Optimization, Bench 2018

作者： Jiang, Zihan Gao, Wanling Wang, Lei Xiong, Xingwang Zhang, Yuchen Wen, Xu Luo, Chunjie Ye, Hainan Lu, Xiaoyi Zhang, Yunquan Feng, Shengzhong Li, Kenli Xu, Weijia Zhan, Jianfeng State Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing China University of Chinese Academy of Sciences Beijing China Dover DE United States Beijing Academy of Frontier Sciences and Technology Beijing China State University of New York Buffalo United States Department of Computer Science and Engineering The Ohio State University Columbus United States National Supercomputing Center in Shenzhen Shenzhen China National Supercomputing Center in Changsha Changsha China National Supercomputing Center in Jinan Jinan China Texas Advanced Computing Center The Texas University at Austin Austin United States

ISBN: (纸本)9783030328122

In recent years, with the trend of applying deep learning (DL) in high performance scientific computing, the unique characteristics of emerging DL workloads in HPC raise great challenges in designing, implementing HPC AI systems. The community needs a new yard stick for evaluating the future HPC systems. In this paper, we propose HPC AI500—a benchmark suite for evaluating HPC systems that running scientific DL workloads. Covering the most representative scientific fields, each workload from HPC AI500 is based on real-world scientific DL applications. Currently, we choose 14 scientific DL benchmarks from perspectives of application scenarios, data sets, and software stack. We propose a set of metrics for comprehensively evaluating the HPC AI systems, considering both accuracy, performance as well as power and cost. We provide a scalable reference implementation of HPC AI500. The specification and source code are publicly available from http://***/HPCAI500/***. Meanwhile, the AI benchmark suites for datacenter, IoT, Edge are also released on the BenchCouncil web site. © 2019, Springer Nature Switzerland AG.

关键词： Benchmarking

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Fungal architecture

arXiv

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arXiv 2019年

作者： Adamatzky, Andrew Ayres, Phil Belotti, Gianluca Wösten, Han Unconventional Computing Laboratory Department of Computer Science University of the West of England Bristol United Kingdom Centre for Information Technology and Architecture Royal Danish Academy of Fine Arts Schools of Architecture Design and Conservation Copenhagen Denmark Mogu S.r.l. Inarzo Italy Microbiology Department of Biology Utrecht University Utrecht Netherlands

As one of the primary consumers of environmental resource, the building industry faces unprecedented challenges in needing to reduce the environmental impact of current consumption practices. This applies to both the construction of the built environment and resource consumption during its occupation and use. Where incremental improvements to current practices can be realised, the net benefits are often far outstripped by the burgeoning demands of rapidly increasing population growth and urbanisation. Against the backdrop of this grand societal challenge, it is necessary to explore approaches that envision a paradigm shift in how material is sourced, processed and assembled to address the magnitude of these challenges in a truly sustainable way, and which can even provide added value. We propose to develop a structural substrate by using live fungal mycelium, functionalise the substrate with nanoparticles and polymers to make a mycelium-based electronics, implement sensorial fusion and decision making in the fungal electronics and to growing monolithic buildings from the functionalised fungal substrate. Fungal buildings will self-grow, build, and repair themselves subject to substrate supplied, use natural adaptation to the environment, sense all what human can sense. Copyright © 2019, The Authors. All rights reserved.

关键词： Fungi

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An IoT sensor network to model occupancy profiles for energy usage simulation tools

An IoT sensor network to model occupancy profiles for energy...

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2018 Global Internet of Things Summit, GIoTS 2018

作者： Saralegui, Unai Anton, Miguel Angel Arbelaitz, Olatz Muguerza, Javier Sustainable Construction Division Tecnalia Research Innovation Donostia-San-Sebastian Spain Computer Architecture and Technology Department University of the Basque Country UPV/EHU Donostia-San-Sebastian Spain

ISBN: (纸本)9781538664513

The development of IoT devices has allowed to install large amounts of sensors in different environments. Consequently, monitoring small houses and entire buildings has become possible. In addition, buildings are one of the biggest energy consumers, so the monitoring of the energy waste, and its sources, is gaining attention. Human behaviour has been reported as being the main discrepancy source between energy usage simulations and real usage, thus being able to easily monitor such behaviour will bring greater insight in the building usage. In this paper, an IoT sensor network is proposed to model occupancy profiles at room level. Such measurement of users' behaviour along with additional information such as temperature or humidity can be used to develop strategies to save energy, especially regarding heating, ventilating and airconditioning (HVAC) systems. The proposed equipment has been gathering data for some months in a workplace containing several meeting rooms. Four of those rooms were monitored and later analysed to test the validity of the proposed approach. The results show that it is possible to obtain occupancy profiles by using simple IoT equipment. © 2018 IEEE.

关键词： Sensor networks

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Undesigning the internet: An exploratory study of reducing everyday internet connectivity 5th

Undesigning the internet: An exploratory study of reducing e...

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5th International Conference on Information and Communication technology for Sustainability, ICT4S 2018

作者： Widdicks, Kelly Ringenson, Tina Pargman, Daniel Kuppusamy, Vishnupriya Lago, Patricia School of Computing and Communications Lancaster University United Kingdom School of Architecture and the Built Environment KTH Royal Institute of Technology Sweden School of Computer Science and Communication KTH Royal Institute of Technology Sweden Department of Sustainable Communication Networks University of Bremen Germany Department of Computer Science Vrije Universiteit Amsterdam Netherlands

Internet connectivity is seamlessly integrated into many of our everyday habits and activities. Despite this, previous research has highlighted that our rather excessive Internet use is not sustainable or even always socially beneficial. In this paper, we carried out an exploratory study on how Internet disconnection affects our everyday lives and whether such disconnection is even possible in today’s society. Through daily surveys, we captured what Internet use means for ten participants and how this varies when they are asked to disconnect by default, and re-connect only when their Internet use is deemed as necessary. From our study, we found that our participants could disconnect from the Internet for certain activities (particularly leisure focused), yet they developed adaptations in their lives to address the necessity of their Internet use. We elicit these adaptations into five themes that encompass how the participants did, or did not, use the Internet based on their necessities. Drawing on these five themes, we conclude with ways in which our study can inspire future research surrounding: Internet infrastructure limits;the promotion of slow values;Internet non-use;and the undesign of Internet services. © 2018, EasyChair. All rights reserved.

关键词： Leisure

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Advancing neutron and photon shielding for space technology and electronic protection: Investigation of Nylon-Based and non-nylon-based polymers as soft protection materials through PHITS code

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Radiation Physics and Chemistry 2025年 237卷

作者： Hessa Alkarrani Ghada Almisned Hesham M.H. Zakaly Gokhan Kilic Shams A.M. Issa Duygu Sen Baykal Antoaneta Ene H.O. Tekin Research Institute for Medical and Health Sciences University of Sharjah Sharjah 27272 Sharjah United Arab Emirates Department of Medical Diagnostic Imaging College of Health Sciences University of Sharjah 27272 Sharjah United Arab Emirates Department of Physics College of Science Princess Nourah Bint Abdulrahman University P.O. Box 84428 Riyadh 11671 Saudi Arabia Institute of Physics and Technology Ural Federal University 620002 Ekaterinburg Russia Department of Physics and Technical Sciences Western Caspian University Baku Azarbaijan Eskisehir Osmangazi University Faculty of Science Department of Physics TR-26040 Eskisehir Türkiye Department of Physics Faculty of Science University of Tabuk Tabuk Saudi Arabia Istanbul Nisantasi University Faculty of Engineering and Architecture Mechatronics Engineering 34398 Istanbul Türkiye Department of Chemistry Physics and Environment INPOLDE Research Center Faculty of Sciences and Environment Dunarea de Jos University of Galati 47 Domneasca Street 800008 Galati Romania Istinye University Faculty of Engineering and Natural Sciences Computer Engineering Department Istanbul 34396 Türkiye

This study investigates the neutron and photon attenuation properties of various Nylon-Based and Non-Nylon-Based Polymers as soft protection materials for space technology and related applications. We analyzed the material densities, mass and linear attenuation coefficients, half-value layers, mean free paths, effective atomic numbers, effective electron densities, fast neutron effective removal cross-sections, and energy absorption buildup factor values of several polymers through PHITS code and other computational tools. Nylon Type 11 (Rilsan) emerged as a standout, offering substantial resistance to neutron radiation, highlighting its potential in sectors where neutron shielding is paramount. Conversely, Polyvinyl Chloride (PVC), characterized by its unique composition, demonstrated superior gamma-ray attenuation capabilities, making it an attractive option for environments predominantly exposed to gamma radiation. Our results showed that the efficacy of PVC in gamma shielding and Nylon Type 11's (Rilsan) notable neutron attenuation, demonstrating their potential as lightweight and environmentally sustainable alternatives for specific applications where lead's heavy weight poses a challenge. While lead remains superior in gamma shielding due to its high atomic number and density, the tested polymers offer practical advantages in applications requiring weight reduction and environmental considerations.

关键词： Neutron PHITS Polymers Radiation protection Space radiation Transmission

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Embodied emission profiles of building types: guidance for emission reduction in the early phases of construction projects

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IOP Conference Series: Earth and Environmental Science 2020年第1期410卷

作者： Eirik Resch Helge Brattebø Inger Andresen Department of Applied Mathematics and Computer Science Technical University of Denmark Kgs. Lyngby Denmark Department of Architecture and Technology Norwegian University of Science and Technology Trondheim Norway Industrial Ecology Programme Norwegian University of Science and Technology Trondheim Norway

The embodied emissions of the construction materials in buildings are a significant contributor to climate change but have only rarely been systematically studied by statistical methods. In the early phases of a building project, empirical results of statistical emission profiles of different building types can act as useful guiding information to inform decisions regarding reduced embodied emissions from construction materials. However, engineers and architects do not have such information at disposition. In this paper, the embodied emissions from the production and transport of initial and recurring building material use in 7 Norwegian case studies of low-emission buildings are made comparable and then studied statistically to find out how the impact varies with building types. The building types studied are timber residential, concrete office, concrete school, and concrete swimming hall. Statistics are produced for each building type and are broken down by the impact contribution from different building elements and material categories. This results in embodied emission profiles and material use profiles for these four building types, which, when based on a larger dataset, can be used by architects and engineers to make informed decisions when aiming for reduced embodied emissions in the early phases of a construction project. Additionally, these profiles can be used as benchmarks by which the final building can be compared when the building is constructed. The statistical results are preliminary and based on a limited dataset, which makes them applicable only as an indication for Norwegian low-emission buildings of these four building types. Future work includes expansion of the dataset on which the profiling is based, further development of the statistical method, and applying the methodology to additional building types.

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Efficient parallel linear scaling method to get the response density matrix in all-electron real-space density-functional perturbation theory

arXiv

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arXiv 2020年

作者： Shang, Honghui Liang, Wanzhen Zhang, Yunquan Yang, Jinlong State Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing100190 China State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials Fujian Provincial KeyLaboratory of Theoretical and Computational Chemistry Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University XiamenFujian361005 China Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical Physics Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China Hefei Anhui230026 China

The real-space density-functional perturbation theory (DFPT) for the computations of the response properties with respect to the atomic displacement and homogeneous electric field perturbation has been recently developed and implemented into the all-electron, numeric atom-centered orbitals electronic structure package FHI-aims. It is found that the bottleneck for large scale applications is the computation of the response density matrix, which scales as O(N3). Here for the response properties with respect to the homogeneous electric field, we present an efficient parallel linear scaling algorithm for the response density matrix calculation. Our scheme is based on the second-order trace-correcting purification and the parallel sparse matrix-matrix multiplication algorithms. The new scheme reduces the formal scaling from O(N3) to O(N), and shows good parallel scalability over tens of thousands of cores. As demonstrated by extensive validation, we achieve a rapid computation of accurate polarizabilities using DFPT. Finally, the computational efficiency of this scheme has been illustrated by making the scaling tests and scalability tests on massively parallel computer systems. Copyright © 2020, The Authors. All rights reserved.

关键词： Matrix algebra

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Corrigendum to “Effect of anisotropic porous structure on mixed permanent magnetic-convection heat transfer under permanent twin magnets” [ICHMT, 158, November 2024, 107831]

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International Communications in Heat and Mass Transfer 2024年 159卷

作者： Mohsen Izadi Ahmad Hajjar Mohamed Moussa El Idi Q.N.G. Lam Faris Alqurashi Mohamed H. Mohamed Institute of Research and Development Duy Tan University Da Nang Viet Nam School of Engineering & Technology Duy Tan University Da Nang Viet Nam Mechanical Engineering Department Faculty of Engineering Lorestan University Khorramabad Iran Center for Environmental Intelligence and College of Engineering and Computer Science VinUniversity Hanoi Viet Nam LabECAM ECAM La Salle Université de Lyon 69005 Lyon France Department of Mechanical Engineering College of Engineering University of Bisha Bisha 61922 P.O. Box 551 Saudi Arabia Mechanical Power Engineering Department Faculty of Engineering EL-Mattaria Helwan University P·O Box:11718 Cairo Egypt Mechanical Engineering Dept. College of Engineering and Islamic Architecture Umm Al-Qura University P.O. 5555 Makkah Saudi Arabia

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Sensations on the body: Varying duration, overlap, ratios and placement on dynamic vibrotactile patterns 18

Sensations on the body: Varying duration, overlap, ratios an...

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19th International Conference on Human-computer Interaction, Interaccion 2018

作者： Morrison, Ann Manresa-Yee, Cristina Jensen, Walther Digital Life Lab. University of Southern Queensland Toowoomba Australia Computer Science and Mathematics Science Department University of Balearic Islands Palma Spain Department of Architecture Design and Media Technology Aalborg University Denmark

ISBN: (纸本)9781450364911

Prior research revealed that people have strong responses to various vibrotactile patterns acting on the trunk of the body. Moreover, they experienced patterns on the back and around the waist more positively compared to those on the front or mid-front of the body. In this study, we use a vibrotactile vest designed according to Traditional Chinese principles to identify the effect of individual factors in the patterns. We examined variations of duration, overlap, placement and repetition. Our research questions are: 'What influenced peoples' perception of the sensations?' 'How can we design for the wearer with specific sensations in mind?' As an example, we found using actuators with the same placement but varying the ratio between duration and overlap gave wearers' opposing perceived effects. One ratio was perceived as calming/feel good (0.5), another as activating (>0.5), another again as annoying ( © 2018 Association for Computing Machinery.

关键词： Wearable computers

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QM-FOrMS: A portable and cost-effective upper extremity rehabilitation system

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Smart Health 2019年 14卷

作者： Lin, Feng Ajay, Jerry Langan, Jeanne Cavuoto, Lora Nwogu, Ifeoma Subryan, Heamchand Xu, Wenyao ICSR College of Computer Science and Technology Zhejiang University United States Department of Computer Science and Engineering University at Buffalo (SUNY) United States Department of Rehabilitation Science University at Buffalo (SUNY) United States Department of Industrial and Systems Engineering University at Buffalo (SUNY) United States Buffalo School of Architecture and Planning University at Buffalo (SUNY) United States Department of Computer Science Rochester Institute of Technology United States

Long-term rehabilitation opportunities are critical for millions of individuals with chronic upper limb motor deficits striving to improve their motor performance. While formal rehabilitation is well organized in the acute stages of stroke, there is minimal professional support of rehabilitation across the lifespan. In this paper, we introduce an upper extremity rehabilitation system, the Quality of Movement Feedback-Oriented Measurement System (QM-FOrMS), by integrating cost-effective portable sensors and clinically verified motion quality analysis towards individuals with upper limb motor deficits. Specifically, QM-FOrMS is comprised of an eTextile pressure sensitive mat, named Smart Mat, a sensory can, named Smart Can, and a mobile device. A personalizable and adaptive upper limb rehabilitation program is developed, including both unilateral and bilateral functional activities which can be selected from a list or custom designed to further tailor the program to the individual. © 2019 Elsevier Inc.

关键词： Customized exercise programs Quality of movement Stroke rehabilitation Upper extremity rehabilitation

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