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Liquefaction susceptibility and deformation characteristics of saturated coral sandy soils subjected to cyclic loadings-a critical review

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Earthquake Engineering and Engineering Vibration 2024年第1期23卷 261-296页

作者： Chen Guoxing Qin You Ma Weijia Liang Ke Wu Qi C.Hsein juang Institute of Geotechnical Engineering Nanjing Tech UniversityNanjing 210009China Civil Engineering and Earthquake Disaster Prevention Center of Jiangsu Province Nanjing 210009China School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing 210094China College of Civil Aviation Nanjing University of Aeronautics and AstronauticsNanjing 210016China Glenn Department of Civil Engineering Clemson UniversityClemsonSC 29634USA

Coral sandy soils widely exist in coral island reefs and seashores in tropical and subtropical *** to the unique marine depositional environment of coral sandy soils,the engineering characteristics and responses of these soils subjected to monotonic and cyclic loadings have been a subject of intense interest among the geotechnical and earthquake engineering *** paper critically reviews the progress of experimental investigations on the undrained behavior of coral sandy soils under monotonic and cyclic loadings over the last three *** focus of coverage includes the contractive-dilative behavior,the pattern of excess pore-water pressure(EPWP)generation and the liquefaction mechanism and liquefaction resistance,the small-strain shear modulus and strain-dependent shear modulus and damping,the cyclic softening feature,and the anisotropic characteristics of undrained responses of saturated coral sandy *** particular,the advances made in the past decades are reviewed from the following aspects:(1)the characterization of factors that impact the mechanism and patterns of EPWP build-up;(2)the identification of liquefaction triggering in terms of the apparent viscosity and the average flow coefficient;(3)the establishment of the invariable form of strain-based,stress-based,or energy-based EPWP ratio formulas and the unique relationship between the new proxy of liquefaction resistance and the number of cycles required to reach liquefaction;(4)the establishment of the invariable form of the predictive formulas of small strain modulus and strain-dependent shear modulus;and(5)the investigation on the effects of stress-induced anisotropy on liquefaction susceptibility and dynamic deformation *** gained through the critical review of these advances in the past decades offer a perspective for future research to further resolve the fundamental issues concerning the liquefaction mechanism and responses of coral sandy sites subjecte

关键词： liquefaction susceptibility dynamic deformation characteristics coral sandy soil cyclic loading review and prospect

High-rate electrochemical H_(2)O_(2) production over multimetallic atom catalysts under acidic–neutral conditions

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Carbon Energy 2024年第1期6卷 44-62页

作者： Yueyu Tong Jiaxin Liu Bing-Jian Su Jenh-Yih juang Feng Hou Lichang Yin Shi Xue Dou Ji Liang Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education School of Materials Science and EngineeringTianjin UniversityTianjinChina Institute for Superconducting and Electronic Materials University of WollongongInnovation CampusNorth WollongongNew South WalesAustralia Department of Electrophysics National Chiao Tung UniversityHsinchuTaiwanChina Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyangLiaoningChina Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghaiChina

Hydrogen peroxide(H_(2)O_(2))production by the electrochemical 2-electron oxygen reduction reaction(2e−ORR)is a promising alternative to the energy-intensive anthraquinone process,and single-atom electrocatalysts show the unique capability of high selectivity toward 2e−ORR against the 4e−*** extremely low surface density of the single-atom sites and the inflexibility in manipulating their geometric/electronic configurations,however,compromise the H_(2)O_(2) yield and impede further performance ***,we construct a family of multiatom catalysts(MACs),on which two or three single atoms are closely coordinated to form high-density active sites that are versatile in their atomic configurations for optimal adsorption of essential*OOH *** them,the Cox–Ni MAC presents excellent electrocatalytic performance for 2e−ORR,in terms of its exceptionally high H_(2)O_(2) yield in acidic electrolytes(28.96 mol L^(−1) gcat.^(−1) h^(−1))and high selectivity under acidic to neutral conditions in a wide potential region(>80%,0–0.7 V).Operando X-ray absorption and density functional theory analyses jointly unveil its unique trimetallic Co2NiN8 configuration,which efficiently induces an appropriate Ni–d orbital filling and modulates the*OOH adsorption,together boosting the electrocatalytic 2e−ORR *** work thus provides a new MAC strategy for tuning the geometric/electronic structure of active sites for 2e−ORR and other potential electrochemical processes.

关键词： hydrogen peroxide production multiatom catalysts operando X-ray adsorption spectrum reaction mechanism tendency structure-property relation

Secure and Efficient Mutual Authentication Scheme for NFC Mobile Devices

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Journal of Electronic Science and Technology 2017年第3期15卷 240-245页

作者： You-Han Tung Wen-Shenq juang Department of Information Management National Kaohsiung First University of Science and Technology Kaohsiung 824

As the technology of mobile devices spreads fast,the price of mobile devices is getting *** of the people have mobile devices,and these devices have the technology of near field communication（NFC）.With the long time development and research,the mobile devices use NFC technology on the payment and authentication applications,and replace the smartcard,the access control card,and the credit card by using the card emulation *** helps the development of NFC *** recent years,more and more users begin using NFC technology on mobile payment and *** researches have proposed the related NFC authentication protocols,but their schemes are still lack of some security properties and functions,which are necessary for NFC authentication *** this paper,we propose a secure and efficient NFC authentication scheme between two NFC devices by the help of the authentication server that provides mutual authentication.

关键词： Index Terms--Authentication protocol informationsecurity mutual authentication near fieldcommunication (NFC)

Static and Dynamic Integrated Analysis Scheme for Android Malware

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Journal of Electronic Science and Technology 2017年第3期15卷 246-250页

作者： Chun-Hao Yung Wen-Shenq juang Department of Information Management National Kaohsiung First University of Science and Technology Kaohsiung 824

The Android platform is the most popular mobile operating *** the increase of the number of Android users,a lot of security issues have *** order to detect the malicious behaviors for the installed Android Apps,in this paper,we propose an Android malware detecting scheme by integrating static and dynamic analysis *** use Androguard and Droid Box to extract the features,and then remove the irrelevant *** we employ the support vector machine（SVM） to classify the Android malware and *** the result of our proposed scheme,the proposed integrated static and dynamic analysis scheme with SVM can effectively detect the Android malware.

关键词： Index Terms--Android dynamic analysis malware,static analysis support vector machine

Regional characterization of vs30 with hybrid geotechnical and geological data

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Underground Space 2023年第4期11卷 218-231页

作者： Wenxin Liu C.Hsein juang Yanjv Peng Guoxing Chen College of Civil Engineering and Architecture Zhejiang Sci-Tech UniversityHangzhou 310018China Glenn Department of Civil Engineering Clemson UniversitySC 29634USA National Institute of Natural Hazards Ministry of Emergency ManagementBeijing 100085China Institute of Geotechnical Engineering Nanjing Tech UniversityNanjing 210009China

Regional characterization of soil properties requires not only geostatistical models considering the spatial variability of soil properties but also methods that account for various sources of heterogeneous *** paper presents a multi-conditional random field approach to characterize the regional characteristics of the average shear-wave velocity in the top 30 meters of subsoil(vs30)based on hybrid geotechnical and geological *** workflow for integrating multiple sources of soil properties information in a random field model for regional vs30 mapping is developed.A detailed two-dimensional(2D)synthetic digital soil field is generated to assess and verify this *** the generated synthetic field,parametric studies on the investigation plans,the value of Markov Bayes coefficient B,element size,and a predefined grid of secondary data are *** on whether to incorporate secondary data for vs30 mapping and the determination of coefficient B are provided.

关键词： Shear wave velocity Random field model Uncertainty Vs30 mapping

Affective computing study of attention recognition for the 3D guide system

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CAAI Transactions on Intelligence Technology 2020年第4期5卷 260-267页

作者： Li-Hong juang Ming-Ni Wu Cian-Huei Lin School of Electrical Engineering and Automation Xiamen University of TechnologyNo.600Ligong RoadJimeiXiamen 361024People’s Republic of China

The eye-tracking has been widely used in multiple discipline studies in recent ***,most of the studies focused on the analysis for static images or text but less for highly interactive operation *** addition,the affective computing rose and development in recent years have changed completely the design of thinking pattern for the human-computer ***,this study hopes to integrate the affective computing into the 3D guide system which was developed for the real campus through the eye-tracking *** analysing user’s gaze position and recognising attention emotion are according to the interest region which is stetted into the environment,and shows the feedback content corresponds to the area and the *** the most intuitive gaze analysis,the operation burden can be reduced and the user’s interactive experience can be improved to achieve intuitive and user-friendly *** results can also apply for medical therapy on human attention training.

关键词： computing interactive computer

Intelligent Wireless Communications Enabled by Cognitive Radio and Machine Learning

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China Communications 2018年第12期15卷 16-48页

作者： Xiangwei Zhou Mingxuan Sun Geoffrey Ye Li Biing-Hwang (Fred) juang School of EECS Louisiana State University School of ECE Georgia Institute of Technology

The ability to intelligently utilize resources to meet the need of growing diversity in services and user behavior marks the future of wireless communication systems. Intelligent wireless communications aims at enabling the system to perceive and assess the available resources, to autonomously learn to adapt to the perceived wireless environment, and to reconfigure its operating mode to maximize the utility of the available resources. The perception capability and reconfigurability are the essential features of cognitive radio while modern machine learning techniques project great potential in system adaptation. In this paper, we discuss the development of the cognitive radio technology and machine learning techniques and emphasize their roles in improving spectrum and energy utility of wireless communication systems. We describe the state-of-the-art of relevant techniques, covering spectrum sensing and access approaches and powerful machine learning algorithms that enable spectrum and energy-efficient communications in dynamic wireless environments. We also present practical applications of these techniques and identify further research challenges in cognitive radio and machine learning as applied to the existing and future wireless communication systems.

关键词： cognitive radio energy efficiency machine learning reconfiguration spectrum efficiency

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新工科背景下程序设计课程思政探索与实践

兰州工业学院学报 2024年第1期31卷 148-152页

作者：朱亚玲刘瑞玲王娟郑刚兰州工业学院计算机与人工智能学院甘肃兰州730050

专业课程思政教育已经成为高校人才培养的一个重要方面。以程序设计课程为例,从课程教学顶层目标的设计、教学大纲的修正、思政元素的发掘、思政元素的融入、课程思政的教学评价五个方面阐述了专业课程如何实现知识传授与思想教育紧密结... 详细信息

专业课程思政教育已经成为高校人才培养的一个重要方面。以程序设计课程为例,从课程教学顶层目标的设计、教学大纲的修正、思政元素的发掘、思政元素的融入、课程思政的教学评价五个方面阐述了专业课程如何实现知识传授与思想教育紧密结合,从专业知识的维度和综合素质的维度培养学生思考解决问题能力,形成思政一体化的全程育人新格局。

关键词：程序设计课程思政思政元素教学评价

论1949-1950年美国合并英国核项目的计划及失败

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东北师大学报（哲学社会科学版） 2011年第3期 86-92页

作者：王娟娟四川大学南亚研究所四川成都610064

战后初期,美英除1948年达成核原料合作的《临时协议》之外,两国之间的核交流并不充分。1949-1950年间,美国政府决定重新评估并调整对英核政策,试图将英国的核项目并入到美国的核项目之中,以藉此实现西方核力量的最优化,巩固其在西方世... 详细信息

战后初期,美英除1948年达成核原料合作的《临时协议》之外,两国之间的核交流并不充分。1949-1950年间,美国政府决定重新评估并调整对英核政策,试图将英国的核项目并入到美国的核项目之中,以藉此实现西方核力量的最优化,巩固其在西方世界的核独大地位。美国合并英国核项目的计划最终以失败而告终,这主要是由于美英迥异的核国家立场难以协调所致。此外,美国国会对行政部门的牵制也是重要原因。

关键词：美国英国核合并计划失败