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29th IEEE International Conference on Parallel and Distributed Systems, ICPADS 2023

作者： Yi, Fengge Wei, Xiumei Liu, Xiaojing Jiang, Xuesong Key Laboratory of Computing Power Network and Information Security Ministry of Education Shandong Computer Science Center Jinan China Shandong Engineering Research Center of Big Data Applied Technology Faculty of Computer Science and Technology Jinan China Shandong Fundamental Research Center for Computer Science Shandong Provincial Key Laboratory of Computer Networks Jinan China State Key Laboratory of High-end Server & Storage Technology Jinan China

ISBN: (纸本)9798350330717

We present GauKGT5, a sequence-to-sequence model proposed for knowledge graph completion (KGC). Our research extends the KGT5 model, a recent sequence-to-sequence link prediction (LP) model. GauKGT5 takes advantage of textual characteristics inherent in the knowledge graph, exhibiting a small model size. However, KGT5's proficiency in link prediction necessitates the ensemble with a knowledge graph embedding model, which itself poses challenges due to its substantial size and expense. By integrating the Gated Attention Unit into the KGT5 model and directly applying it to the encoder-decoder structure, we achieve improved contextual dependency capturing within the sequence, resulting in enhanced prediction accuracy, accelerated training speed, and enhanced computational efficiency. At the same time, we introduce parallel computing as a means to enhance the efficiency of model training and inference within the XPU distributed computing environment. © 2023 IEEE.

关键词： gated attention unit knowledge graph completion sequence-to-sequence model

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Parallel Optimization of Computational Fluid Dynamics Application code_saturne Based on Next Generation Sunway Supercomputer 14

Parallel Optimization of Computational Fluid Dynamics Applic...

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14th International Symposium on Parallel Architectures, Algorithms and Programming, PAAP 2023

作者： Liu, Anjun Liao, Yin Xu, Xihao Chen, YanYan Zhong, Hongjun Wu, Jianming Kong, Bo Raikov, Alexander Guo, Meng Jinan Institute of Supercomputing Technology Jinan Key Laboratory of High Performance Industrial Software Jinan China Zhejiang Yuansuan Technology Co. Ltd Jinan Supercomputing-Zhejiang Yuansuan Industrial Simulation System Joint Laboratory Hangzhou China Qilu University of Technology Shandong Academy of Sciences Ministry of Education Shandong Computer Science Center National Supercomputer Center in Jinan Key Laboratory of Computing Power Network and Information Security China Fundamental Research Center for Computer Science Shandong Provincial Key Laboratory of Computer Networks Shandong Jinan China

ISBN: (纸本)9798350371024

code_saturne is an open-source general large-scale computational fluid dynamics software independently developed by Electricite de France since 1997. Due to its high computing performance, code_saturne has been widely used in the nuclear industry, heavy fuel and biomass combustion, particle tracking and other computational fluid dynamics fields. In this work, we implemented code_saturne on the new generation Sunway supercomputer (SW26010pro) at the first time. By applying the data value-taking technology of double cache, combined with Sunway shared memory technology, we have adapted the data structure and Modular programming of code_saturne conducively to the new generation Sunway supercomputer (SW26010pro) and accelerated the software hotspots the software hotspots by 1-2 times. After optimizing and porting, this software has successfully served in the numerical simulation of the lateral flow of fuel assemblies in the nuclear industry. © 2023 IEEE.

关键词： Supercomputers

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Cooperative structure of Li/Ni mixing and stacking faults for achieving high-capacity Co-free Li-rich oxides

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Journal of Energy Chemistry 2024年第8期95卷 315-324,I0007页

作者： Zhen Wu Yu-Han Zhang Hao Wang Zewen Liu Xudong Zhang Xin Dai Kunyang Zou Xiaoming Lou Xuechen Hu Lijing Ma Yan Liu Yongning Liu State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049ShaanxiChina Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101ShandongChina Hefei Advanced Computing Center Operation Management Corp Ltd Hefei 230088AnhuiChina Center for High Performance Computing Network Information CenterXi’an Jiaotong UniversityXi’an 710049ShaanxiChina Wuhan Dongfeng Motor Corporation Ltd Wuhan 430056HubeiChina School of Materials Science and Intelligent Engineering Nanjing UniversitySuzhou 215163JiangsuChina Key Laboratory of MEMS of the Ministry of Education Southeast UniversityNanjing 210096JiangsuChina International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong UniversityXi’an 710049ShaanxiChina

Co-free Li-rich layered oxides(LLOs)are emerging as promising cathode materials for Li-ion batteries due to their low cost and high ***,they commonly face severe structural instability and poor electrochemical activity,leading to diminished capacity and voltage ***,we introduce a Co-free LLO,Li_(1.167)Ni_(0.222)Mn_(0.611)O_(2)(Cf-L1),which features a cooperative structure of Li/Ni mixing and stacking *** structure regulates the crystal and electronic structures,resulting in a higher discharge capacity of 300.6 mA h g^(-1)and enhanced rate capability compared to the typical Co-free LLO,Li_(1.2)Ni_(0.2)Mn_(0.6)O_(2)(Cf-Ls).Density functional theory(DFT)indicates that Li/Ni mixing in LLOs leads to increased Li-O-Li configurations and higher anionic redox activities,while stacking faults further optimize the electronic interactions of transition metal(TM)3d and non-bonding O 2p ***,stacking faults accommodate lattice strain,improving electrochemical reversibility during charge/discharge cycles,as demonstrated by the in situ XRD of Cf-L1 showing less lattice evolution than *** study offers a structured approach to developing Co-free LLOs with enhanced capacity,voltage,rate capability,and cyclability,significantly impacting the advancement of the next-generation Li-ion batteries.

关键词： Co-free Li-rich oxides Li/Ni mixing Stacking faults Electronic structure

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EFFICIENT NUMERICAL METHODS FOR THE NAVIER-STOKES-NERNST-PLANCK-POISSON EQUATIONS

arXiv

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arXiv 2023年

作者： Zhou, Xiaolan Xu, Chuanju School of Mathematical Sciences Fujian Provincial Key Laboratory of Mathematical Modeling and High Performance Scientific Computing Xiamen University Xiamen361005 China

We propose in this paper efficient first/second-order time-stepping schemes for the evolutional Navier-Stokes-Nernst-Planck-Poisson equations. The proposed schemes are constructed using an auxiliary variable reformulation and sophisticated treatment of the terms coupling different equations. By introducing a dynamic equation for the auxiliary variable and reformulating the original equations into an equivalent system, we construct first- and second-order semi-implicit linearized schemes for the underlying problem. The main advantages of the proposed method are: (1) the schemes are unconditionally stable in the sense that a discrete energy keeps decay during the time stepping;(2) the concentration components of the discrete solution preserve positivity and mass conservation;(3) the delicate implementation shows that the proposed schemes can be very efficiently realized, with computational complexity close to a semi-implicit scheme. Some numerical examples are presented to demonstrate the accuracy and performance of the proposed method. As far as the best we know, this is the first second-order method which satisfies all the above properties for the Navier-Stokes-Nernst-Planck-Poisson equations. © 2023, CC BY.

关键词： Numerical methods

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A Low BER Cooperative-adaptive-equalizer for Serial Receiver in HPC Networks

A Low BER Cooperative-adaptive-equalizer for Serial Receiver...

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IEEE International Conference on high performance computing and Communications (HPCC)

作者： Lai Mingche Lv Fangxu Zhang Geng Xu Chaolong State Key Laboratory of High Performance Computing School of Computer National University of Defense Technology Changsha China

With the evolution of high-performance computer and data center interconnect communication rates from 53.125Gbps to 106.25Gbps, high-speed serial interfaces face a dramatic increase in BER challenges, which seriously affects interconnect performance and system stability. To address the challenge of high BER of 106.25Gbps PAM4 receiver, this paper proposes a cooperative adaptive equalizer structure, which adopts three equalizers and adaptive cooperative equalization algorithm to achieve low BER under large insertion loss conditions. In addition, a blind adaptive equalization algorithm based on judgment feedback equalizer is proposed to shorten the link training time. In this paper, a 12nm CMOS process is used to design a receiver based on cooperative adaptive equalizer. Simulation shows that the receiver with cooperative adaptive equalizer can support BER less than e-12 for a de-emphasized l06.25Gbps PAM4 signal after 34.3dB @ 26.5625G Hz channel, and the convergence period is less then 0.2 us.

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Effects of heat treatment on mechanical properties of an extruded Mg-4.3Gd-3.2Y-1.2Zn-0.5Zr alloy and establishment of its Hall–Petch relation

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Journal of Magnesium and Alloys 2022年第2期10卷 539-551页

作者： Lei Liu Xiaojie Zhou Shilun Yu Jian Zhang Xianzheng Lu Xin Shu Zaijun Su Hunan Provincial Key Laboratory of Intelligent Manufacturing Technology for High-performance Mechanical Equipment Changsha University of Science and TechnologyChangsha 410114China Hunan Xiangtou Goldsky Titanium Metal Co. Ltd.Changsha 410205China Hunan Aerospace Tianlu Advanced Material Testing Co. LtdChangsha 410600China School of Mechanical Engineering Hunan University of TechnologyZhuzhou 412007China

The effects of T4,T5,and T6 treatment on the microstructure and mechanical properties of the extruded Mg-4.3Gd-3.2Y-1.2Zn-0.5Zr(wt.%)alloy with a relatively low RE content(7.5 wt.%)were investigated.T4 treatment at 450–500°C induces a gradual grain growth ofα-Mg but an obvious transition of texture component from<0001>⊥ED to<0001>∥*** LPSO phases are highly stable against annealing while intragranular ones experience dissolution and *** peak-ageing at 200°C,the elongation of as-extruded and T4 samples is just slightly reduced or even increased due to the weak ageing hardening response.T5 sample exhibits an attractive combination of strength and ductility,with a tensile yield strength(TYS)of 303 MPa and elongation of 20.0%.The Hall–Petch relation for the alloys with or without ageing treatment has been *** boundary strengthening rather than precipitation strengthening has the dominant contribution to TYS,and a modified equation is developed to predict grain boundary strengthening values for Mg-Gd-Y-Zn-Zr alloys which contain different Schmid factors for basal slip.

关键词： Magnesium alloys Heat treatment Hall–Petch Mechanical properties Strengthening mechanism

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MinFlow: high-performance and cost-efficient data passing for I/O-intensive stateful serverless analytics 24

MinFlow: high-performance and cost-efficient data passing fo...

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Proceedings of the 22nd USENIX Conference on File and Storage Technologies

作者： Tao Li Yongkun Li Wenzhe Zhu Yinlong Xu John C. S. Lui University of Science and Technology of China University of Science and Technology of China and Anhui Province Key Laboratory of High Performance Computing USTC The Chinese University of Hong Kong

ISBN: (纸本)9781939133380

Serverless computing has revolutionized application deployment, obviating traditional infrastructure management and dynamically allocating resources on demand. A significant use case is I/O-intensive applications like data analytics, which widely employ the pivotal "shuffle" operation. Unfortunately, the shuffle operation poses severe challenges due to the massive PUT/GET requests to remote storage, especially in high-parallelism scenarios, leading to high performance degradation and storage cost. Existing designs optimize the data passing performance from multiple aspects, while they operate in an isolated way, thus still introducing unforeseen performance bottlenecks and bypassing untapped optimization opportunities. In this paper, we develop MinFlow, a holistic data passing framework for I/O-intensive serverless analytics jobs. Min-Flow first rapidly generates numerous feasible multi-level data passing topologies with much fewer PUT/GET operations, then it leverages an interleaved partitioning strategy to divide the topology DAG into small-size bipartite sub-graphs to optimize function scheduling, further reducing over half of the transmitted data to remote storage. Moreover, MinFlow also develops a precise model to determine the optimal configuration, thus minimizing data passing time under practical function deployments. We implement a prototype of MinFlow, and extensive experiments show that MinFlow significantly outperforms state-of-the-art systems, FaaSFlow and Lambada, in both the job completion time and storage cost.

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The chordata olfactory receptor database

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Protein & Cell 2025年第4期16卷 283-292页

作者： Wei Han Siyu Bao Jintao Liu Yiran Wu Liting Zeng Tao Zhang Ningmeng Chen Kai Yao Shunguo Fan Aiping Huang Yuanyuan Feng Guiquan Zhang Ruiyi Zhang Hongjin Zhu Tian Hua Zhijie Liu Lina Cao Xingxu Huang Suwen Zhao Human Institute ShanghaiTech UniversityShanghai 201210China Research Center for Life Sciences Computing Zhejiang LabHangzhou 311121China Department of Intelligent Edge Cloud China Telecom Cloud Technology Co.Ltd.Shanghai 200120China School of Life Science and Technology ShanghaiTech UniversityShanghai 201210China School of Information Science and Technology Shanghai Tech UniversityShanghai 201210China Shanghai Key Laboratory of High-Resolution Electron Microscopy Shanghai Tech UniversityShanghai 201210China Zhejiang Provincial Key Laboratory of Pancreatic Disease The First Affiliated Hospitaland Institute of Translational MedicineZhejiang University School of MedicineHangzhou 310029China Shanghai Clinical Research and Trial Center Shanghai 201210China

Introduction of database Olfaction is one of the oldest chemosensory systems in chordates,playing crucial roles in their foraging,predator evasion,social communication,mating and parental care(Guo et al.,2023;Li and Liberles,2015;Liberles,2014).The initial step of olfaction is the binding and activation of olfactory receptors(ORs)by odorants in a combinatorial way(Malnic et al.,1999).

关键词： chordates chemosensory systems introduction database olfaction foraging olfaction binding activation olfactory olfactory receptors odorants

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Modulating Oxygen Affinity to Enhance Liquid Products for the Electrochemical Reduction of Carbon Monoxide

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SmartMat 2025年第2期6卷 214-223页

作者： Jiayi Chen Juan Manuel Arce-Ramos Ioannis Katsounaros Emiel de Smit Saifudin MAbubakar Yanwei Lum Jia Zhang Lei Wang State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhouChina Department of Chemical and Biomolecular Engineering National University of SingaporeSingaporeSingapore Institute of High Performance Computing(IHPC) Agency for ScienceTechnology and Research(A*STAR)SingaporeSingapore ExxonMobil Chemical Europe LLC MachelenBelgium ExxonMobil Asia Pacific Pte.Ltd SingaporeSingapore Centre for Hydrogen Innovations National University of SingaporeSingaporeSingapore

Electrocatalytic CO reduction(COR)offers a promising alternative approach for synthesizing valuable chemicals,potentially at a lower carbon intensity as compared to conventional chemical ***-based catalysts have shown encouraging selectivity and activity toward multi-carbon(C^(2+))products,albeit typically in the form of a *** COR selectivity toward specific types of C2+products,such as liquid products with high energy density,remains a *** this study,we developed a Cu/Zn bimetallic catalyst composite and demonstrated enhanced selectivity toward liquid products as compared to reference CuO and Cu-based catalysts,approaching 60%at a high current density of 300 mA/cm^(2).Our investigation highlights that the introduction of Zn promoted the emergence of a Cu/Zn heterojunction interface during *** functional theory simulations were used to rationalize the observed differences in selectivity,revealing that interface plays a crucial role in diminishing the oxygen adsorption at the Cu-sites and modifying the adsorption energy of COR reaction intermediates,consequently leading to enhanced selectivity toward liquid products.

关键词： C_(2)liquid production CO_(2)/CO reduction copper/zinc electrocatalysts oxygen affinity

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Self-assembled biodegradable herbal-based nanoflower decorative magnesium implants combine therapy with bone regeneration

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Journal of Magnesium and Alloys 2025年第1期13卷 130-147页

作者： Huihui Du Dongdong Zhang Kui Xue Limin Ma Ru Xu Ji Tan Feng Peng Xuanyong Liu State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma Department of Orthopaedics and TraumatologyThe University of Hong Kong-Shenzhen HospitalShenzhen 518053China School of Chemistry and Materials Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences1 Sub-lane XiangshanHangzhou 310024China Medical Research Institute Department of OrthopedicsGuangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesSouthern Medical UniversityGuangzhouGuangdong 510080China

The rapid corrosion rate and limited biological functionality still pose challenges for magnesium(Mg)-based implants in the treatment of complicated bone-related diseases in ***,a multifunctional biodegradable curcumin(herbal medicine)-ferrum(Cur-Fe)nanoflower was self-assembled on plasma electrolytic oxidation(PEO)-treated Mg alloy via a facile immersion process to realize differential biological function for anti-bacteria/tumor and bone *** results indicated that Cur-Fe nanoflower coating can promote protein adsorption,cell adhesion and proliferation,exhibiting excellent *** Cur-Fe nanoflower coating exhibits unique degradation characteristics,as curcumin gradually decomposes into ferulic acid,aromatic aldehyde and other antibacterial substances,and the coating spontaneously converts into FeOOH nanosheets,ensuring the corrosion resistance of Mg-based ***,Cur-Fe coating exhibits remarkable narrow gap semiconductor characteristics,which can generate reactive oxygen species(ROS)and demonstrated excellent antibacterial effect under simulated sunlight(SSL)***,under NIR irradiation,Cur-Fe coating showed excellent chemotherapy/photodynamic/photothermal synergetic antitumor properties in vitro and in vivo due to the introduction of curcumin,and photocatalysis and photothermal conversion properties of ***,Cur-Fe nanoflower coating demonstrated great osteogenesis activity in vitro and in vivo due to unique micro/nano structure,surface chemical bond,and the release of Mg and Fe ions.

关键词： Magnesium-based implants Herbal medicine Curcumin-ferrum nanoflower Anti-bacterial/tumor Osteogenesis

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