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EG-STC: An Efficient Secure Two-Party Computation Scheme Based on Embedded GPU for Artificial Intelligence Systems

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Computers, Materials & Continua 2024年第6期79卷 4021-4044页

作者： Zhenjiang Dong xin ge Yuehua Huang Jiankuo Dong Jiang Xu School of Computer Science Nanjing University of Posts and TelecommunicationsNanjing210023China School of Computer Nanjing University of Information Science and TechnologyNanjing210044China

This paper presents a comprehensive exploration into the integration of Internet of Things(IoT),big data analysis,cloud computing,and Artificial Intelligence(AI),which has led to an unprecedented era of *** delve into the emerging trend of machine learning on embedded devices,enabling tasks in resource-limited ***,the widespread adoption of machine learning raises significant privacy concerns,necessitating the development of privacy-preserving *** such technique,secure multi-party computation(MPC),allows collaborative computations without exposing private *** its potential,complex protocols and communication interactions hinder performance,especially on resource-constrained *** to enhance efficiency have been made,but scalability remains a *** the success of GPUs in deep learning,lever-aging embedded GPUs,such as those offered by NVIDIA,emerges as a promising ***,we propose an Embedded GPU-based Secure Two-party Computation(EG-STC)framework for Artificial Intelligence(AI)*** the best of our knowledge,this work represents the first endeavor to fully implement machine learning model training based on secure two-party computing on the Embedded GPU *** experimental results demonstrate the effectiveness of *** an embedded GPU with a power draw of 5 W,our implementation achieved a secure two-party matrix multiplication throughput of 5881.5 kilo-operations per millisecond(kops/ms),with an energy efficiency ratio of 1176.3 kops/ms/***,leveraging our EG-STC framework,we achieved an overall time acceleration ratio of 5–6 times compared to solutions running on server-grade *** solution also exhibited a reduced runtime,requiring only 60%to 70%of the runtime of previously best-known methods on the same *** summary,our research contributes to the advancement of secure and efficient machine learning implementations on resource-constrained embedded

关键词： Secure two-party computation embedded GPU acceleration privacy-preserving machine learning edge computing

Experimental investigation of dynamic characteristics of leaching tubing for solution mining of salt cavern carbon and energy storage

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Petroleum Science 2024年第4期21卷 2703-2722页

作者： Yin-Ping Li xin-Bo ge Xi-Lin Shi Hong-Ling Ma State Key Laboratory of geomechanics and geotechnical Engineering Institute of Rock and Soil Mechanics Chinese Academy of Sciences University of Chinese Academy of Sciences College of Energy and Mining Engineering Shandong University of Science and Technology State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology Shandong University of Science and Technology

Salt caverns are extensively utilized for storing various substances such as fossil energy, hydrogen,compressed air, nuclear waste, and industrial solid waste. In China, when the salt cavern is leached through single-well water solution mining with oil as a cushion, engineering challenges arise with the leaching tubing, leading to issues like damage and instability. These problems significantly hinder the progress of cavern construction and the control of cavern shape. The primary cause of this is the flowinduced vibration instability of leaching tubing within a confined space, which results in severe bending or damage to the tubing. This study presents a model experimental investigation on the dynamic characteristics of leaching tubing using a self-developed liquid-solid coupling physical model experiment apparatus. The experiment utilizes a silicone-rubber pipe(SRP) and a polycarbonate pipe(PCP) to examine the effects of various factors on the dynamic stability of cantilevered pipes conveying fluid. These factors include external space constraint, flexural rigidity, medium outside the pipe, overhanging length, and end conditions. The experiments reveal four dynamic response phenomena: water hammer, static buckling, chaotic motion, and flutter instability. The study further demonstrates that the length of the external space constraint has a direct impact on the flutter critical flow velocity of the cantilevered pipe conveying fluid. Additionally, the flutter critical flow velocity is influenced by the end conditions and different external media.

关键词： Salt cavern storage Solution mining Leaching tubing Experimental investigation Flutter instability

Exploring the correlation between temperature and crime:A case-crossover study of eight cities in America

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Journal of Safety Science and Resilience 2024年第1期5卷 13-36页

作者： Jinming Hu Xiaofeng Hu xin’ge Han Yan Lin Huanggang Wu Bing Shen School of Information Technology and Cyber Security People’s Public Security University of ChinaBeijing 100038China Center for Capital Social Safety People’s Public Security University of ChinaBeijing 100038China China Association for Public Safety Beijing 100084China School of Emergency Management and Safety Engineering China University of Mining and TechnologyBeijing 100083China School of International Police Studies People’s Public Security University of ChinaBeijing 100038China

Recent years have seen increasing academic interest in exploring the correlation between temperature and ***,it is uncertain whether similar long-term trends or seasonality(rather than causal effect)of temper-ature and crime is the major reason for the observed correlation between *** explore whether there is still a correlation between temperature and crime when long-term trends and seasonal cycles are filtered out,we use the Kalman filter to decompose the time series of temperature and crimes,and then the fast Fourier transform is used to calculate the exact circle of their seasonality *** on that,the box-plot method and linear regression are used to explore the correlation between temperature residuals and crime *** results show that more than half of the crime types have similar seasonal cycles(approximately 1 year)to that of ***,the daily residual analyses show that temperature residuals have a positive correlation with assault and robbery residuals in all cities,whose average slopes are more than *** other four types of crimes vary greatly from case to *** temperature residuals show a weak correlation with the residuals of some crime types.

关键词： Time series decomposition Crime Temperature Kalman filter Fast fourier transform

Multiscale urban design based on the optimization of the wind and thermal environments:A case study of the core area of Suzhou Science and Technology City

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Frontiers of Architectural Research 2024年第4期13卷 822-841页

作者： Hua Liu xin Zhou xin ge Dongqing Han Weiren Zhuang Ying Tang Xiaohan Shen Architects&Engineers CO. LTD of Southeast UniversityNanjing 210096China School of Architecture Southeast UniversityNanjing 210096China

New methods are need to coordinate the conflicting spatial demands through urban design research and strategies from the perspective of multi-scale urban climate *** integrate windethermal environment with urban design,we propose three scale levels,namely the district-superblock,superblock-block,and block-building levels,and divide the urban design elements into voids and ***,we establish a multiscale methodological framework in which the urban design contents are clarified by each scale,and the information transmitted between scales is obtained to ensure consistent value propositions and strategic *** microclimate shaping of the urban open space is transformed into guiding strategies and quantitative indicators of the spatial form of the solid *** is transmitted between the scales through the windethermal indicators of windward side and the morphological indicators of solid ***,the methodology was applied to the project in the core area of Suzhou Science and Technology City,and the findings preliminarily verify the effectiveness and feasibility of the *** research influences urban climate studies and urban design practice in three ways:1)improving understanding of the correlation between scales;2)facilitating interaction between the two domains;and 3)providing tools for urban design practices.

关键词： Multiscale transmission Windethermal environment optimization Urban design strategy Urban form

High-efficiency sodium storage of Co_(0.85)Se/WSe_(2) encapsulated in N-doped carbon polyhedron via vacancy and heterojunction engineering

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Carbon Energy 2024年第1期6卷 94-107页

作者： Ya Ru Pei Hong Yu Zhou Ming Zhao Jian Chen Li xin ge Wei Zhang Chun Cheng Yang Qing Jiang Key Laboratory of Automobile Materials(Jilin University) Ministry of EducationSchool of Materials Science and EngineeringJilin UniversityChangchunChina Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials Electron Microscopy CenterJilin UniversityChangchunChina

With the advantage of fast charge transfer,heterojunction engineering is identified as a viable method to reinforce the anodes'sodium storage ***,vacancies can effectively strengthen the Na+adsorption ability and provide extra active sites for Na+***,their synchronous engineering is rarely ***,a hybrid of Co_(0.85)Se/WSe_(2) heterostructure with Se vacancies and N-doped carbon polyhedron(CoWSe/NCP)has been fabricated for the first time via a hydrothermal and subsequent selenization *** aberration-corrected transmission electron microscopy confirms the phase interface of the Co_(0.85)Se/WSe_(2) heterostructure and the existence of Se *** functional theory simulations reveal the accelerated charge transfer and enhanced Na+adsorption ability,which are contributed by the Co_(0.85)Se/WSe_(2) heterostructure and Se vacancies,*** expected,the CoWSe/NCP anode in sodium-ion battery achieves outstanding rate capability(339.6 mAh g^(−1) at 20 A g^(−1)),outperforming almost all Co/W-based selenides.

关键词： Co_(0.85)Se/WSe_(2)heterostructure density functional theory simulations N-doped carbon polyhedron Se vacancies sodium-ion batteries

Deblurring,artifact-free optical coherence tomography with deconvolution-random phase modulation

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Opto-Electronic Science 2024年第1期3卷 13-24页

作者： xin ge Si Chen Kan Lin Guangming Ni En Bo Lulu Wang Linbo Liu School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore School of Chemical and Biomedical Engineering Nanyang Technological UniversitySingapore 637459Singapore China-Singapore International Joint Research Institute(CSIJRI) Guangzhou 510000China School of Optoelectronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu 610054China

Deconvolution is a commonly employed technique for enhancing image quality in optical imaging ***-nately,its application in optical coherence tomography(OCT)is often hindered by sensitivity to noise,which leads to ad-ditive ringing *** artifacts considerably degrade the quality of deconvolved images,thereby limiting its effect-iveness in OCT *** this study,we propose a framework that integrates numerical random phase masks into the deconvolution process,effectively eliminating these artifacts and enhancing image *** optimized joint operation of an iterative Richardson-Lucy deconvolution and numerical synthesis of random phase masks(RPM),termed as De-conv-RPM,enables a 2.5-fold reduction in full width at half-maximum(FWHM).We demonstrate that the Deconv-RPM method significantly enhances image clarity,allowing for the discernment of previously unresolved cellular-level details in nonkeratinized epithelial cells ex vivo and moving blood cells in vivo.

关键词： deconvolution random phase masks deblurring

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美联储言辞沟通与中国投资者情绪

金融论坛 2024年第4期 11-22页

作者：姚登宝葛新杰安徽大学经济学院合肥230601 北京大学经济学院北京100871

本文运用词典法和大语言模型测度美联储言辞沟通和中国投资者情绪,分析美联储言辞沟通对中国投资者情绪的影响效应。结果表明:美联储言辞沟通与中国投资者情绪保持显著的正向关联,消极词汇和强弱语气词汇对投资者情绪的影响程度相对更强... 详细信息

本文运用词典法和大语言模型测度美联储言辞沟通和中国投资者情绪,分析美联储言辞沟通对中国投资者情绪的影响效应。结果表明:美联储言辞沟通与中国投资者情绪保持显著的正向关联,消极词汇和强弱语气词汇对投资者情绪的影响程度相对更强;仅有消极词汇对投资者情绪的影响存在显著的欠反应偏差,大部分词汇均对投资者情绪具备预期效应且具有显著的异质性;美联储言辞沟通对中国投资者情绪的影响效应具有非对称性,正向变动的边际效应强于负向变动;消极词汇在短期能提高投资者情绪的日内波动,而长期影响逐渐消失。

关键词：美联储言辞沟通投资者情绪文本分析关联模式影响效应

中国内地股票市场板块泡沫存在特征与传染机制——基于GSADF检验法与R-Vine Copula模型

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中央财经大学学报 2024年第9期 47-57页

作者：王璇葛新权中国社会科学院大学经济学院北京信息科技大学经济管理学院

面对国内宏观经济下行压力和金融市场超预期等多因素挑战,我国内地股票市场易产生周期性泡沫与金融系统性风险问题。本文基于2011年9月至2023年7月我国部分股指数据,对可能存在的周期性泡沫进行存在性检验,探讨泡沫存在特征与泡沫期起... 详细信息

面对国内宏观经济下行压力和金融市场超预期等多因素挑战,我国内地股票市场易产生周期性泡沫与金融系统性风险问题。本文基于2011年9月至2023年7月我国部分股指数据,对可能存在的周期性泡沫进行存在性检验,探讨泡沫存在特征与泡沫期起止时间。构建R-Vine Copula模型识别风险传染的核心股指,建立条件结构探究传染相关性与传染机制。研究表明,样本期内股指序列均存在泡沫,情绪循环性和市场联动性是主板市场的股指泡沫的主要特征,创业板泡沫具有季节性和创新关联性。面对信息不对称挤压和羊群杀跌行为,要素之间的局部相互作用使泡沫的形成机制具有自组织性。进一步研究表明,股指风险传播强度在溢出效应影响下与连接层级成反比,呈现出动态相关性和非对称性属性。本文揭示了我国内地股票市场周期性泡沫的存在特征、形成机制和风险传播机理,为促进股票市场健康发展、构建风险监测与防范机制和探索资本市场服务实体经济效能提供了理论依据与经验支撑。

关键词：股票市场泡沫 GSADF检验 Copula模型

The structure of HSV-1 gB bound to a potent neutralizing antibody reveals a conservative antigenic domain across herpesviruses

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hLife 2024年第3期2卷 141-146页

作者： Cong Sun Jia-Wen Yang Chu Xie xin-Yan Fang Guo-Long Bu ge-xin Zhao Dan-Ling Dai Zheng Liu Mu-Sheng Zeng State Key Laboratory of Oncology in South China Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapyGuangdong Provincial Clinical Research Center for CancerSun Yat-sen University Cancer CenterGuangdongChina Cryo-electron Microscopy Center Southern University of Science and TechnologyGuangdongChina Department of Biology Southern University of Science and TechnologyGuangdongChina

Human herpesviruses(HHV),including the alpha,beta,andgamma subfamilies,are enveloped viruses with broad prevalence,establishing life-time latent infections and inducing a variety of diseases[1].Among them,herpes simplex virus(HSV),consists of two HSV-1 and HSV-2 variants,ubiquitouslyaffecting global populations[2].As an enveloped virus,HSV features a repertoire of glycoproteins such as glycoproteins D(gD),glycoproteins H(gH),glycoproteins L(gL),and glycoproteins B(gB),to orchestrate host cell recognition and infection[3,4].

关键词： diseases neutral envelope