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第二届全国复杂动态网络学术论坛

作者： jia-ming liu electrical engineering department.university of california Los Angeles. Los Angeles CA 90095. USA

＜正＞A complete picture of the nonlinear dynamics and unidirectionally coupled chaos synchronization of single-mode semiconductor lasers is presented in this paper. Synchronization for chaotic optical communications is *** concepts and theoretical framework are *** results are presented to demonstrate the fundamental *** computations are employed for mapping the dynamical states and for illustrating certain detailed characteristics of the chaotic *** different semiconductor laser systems,namely the optical injection system,the optical feedback system,and the optoelectronic feedback system,that are of most interest for high-bit-rate chaotic optical communications are *** optical injection system is a nonautonomous system that follows a period-doubling route to *** optical feedback system is a phase-sensitive delayed-feedback autonomous system for which all three known routes, namely period-doubling,quasiperiodicity,and intermittency,to chaos can be *** optoelectronic feedback system is a phase-insensitive delayed-feedback autonomous system that follows a quasiperiodicity route to chaotic *** synchronization in unidirectionally coupled configurations is the focus of discussions for chaotic *** optical injection and optical feedback systems,the frequency,phase,and amplitude of the optical fields of both transmitter and receiver lasers are all locked in synchronism when complete synchronization is *** the optoelectronic feedback system,chaos synchronization involves neither the locking of the optical frequency nor the synchronization of the optical *** both optical feedback and optoelectronic feedback systems,where the transmitter is configured with a delayed feedback loop, anticipated and retarded synchronization can be observed as the difference between the feedback delay time and the propagation time from the transmitter laser to the receiver las

关键词： Semiconductor lasers dynamics chaos synchronization and chaotic communications

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Emerging WS_(2)/WSe_(2)@graphene nanocomposites: synthesis and electrochemical energy storage applications

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Rare Metals 2024年第1期43卷 1-19页

作者： Yu-Meng Gao Yong liu Kai-jia Feng Jun-Qing Ma Ying-Jie Miao Bin-Rui Xu Kun-ming Pan Osaka Akiyoshi Guang-Xin Wang Ke-Ke Zhang Qiao-Bao Zhang National Joint engineering Research Center for Abrasion Control and Molding of Metal Materials Henan Key Laboratory of Non-Ferrous Materials Science and Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023China Provincial and Ministerial Co-Construction of Collaborative School of electrical engineering Henan University of Science and TechnologyLuoyang 471023China Biomaterials Laboratory Faculty of EngineeringOkayama UniversityTsushima-NakeOkayama-Shi 700-8530Japan department of Materials Science and engineering College of MaterialsXiamen UniversityXiamen 361005China Fujian Key Laboratory of Surface and Interface engineering for High Performance Materials Xiamen UniversityXiamen 361005China

In recent years, tungsten disulfide(WS_(2)) and tungsten selenide(WSe_(2)) have emerged as favorable electrode materials because of their high theoretical capacity, large interlayer spacing, and high chemical activity;nevertheless, they have relatively low electronic conductivity and undergo large volume expansion during cycling, which greatly hinder them in practical applications. These drawbacks are addressed by combining a superior type of carbon material, graphene, with WS_(2) and WSe_(2) to form a WS_(2)/WSe_(2)@graphene *** materials have received considerable attention in electro-chemical energy storage applications such as lithium-ion batteries(LIBs), sodium-ion batteries(SIBs),and supercapacitors. Considering the rapidly growing research enthusiasm on this topic over the past several years, here the recent progress of WS_(2)/WSe_(2)@graphene nanocomposites in electrochemical energy storage applications is summarized. Furthermore, various methods for the synthesis of WS_(2)/WSe_(2)@graphene nanocomposites are reported and the relationships among these methods, nano/microstructures, and electrochemical performance are systematically summarized and discussed. In addition, the challenges and prospects for the future study and application of WS_(2)/WSe_(2)@graphene nanocomposites in electrochemical energy storage applications are proposed.

关键词： WS_(2)/WSe_(2)@graphene nanocomposites Liion batteries(LIBs) Na-ion batteries(SIBs) Supercapacitors Electrochemical performance

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Improving hydrogen evolution reaction efficiency through lattice tuning

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Nano Research 2024年第7期17卷 5907-5913页

作者： Zipeng Zhao Haotian liu Wenpei Gao Praveen Kolla Wang Xue Zeyan liu Jinghua Guo Sanjeev Mukerjee Xiaoqing Pan Qingying jia Xiangfeng Duan Yu Huang department of Materials Science and engineering University of CaliforniaLos AngelesCalifornia 90095USA department of Chemical engineering and Materials Science University of CaliforniaIrvineCalifornia 92697USA Materials Science and engineering North Carolina State UniversityRaleighNorth Carolina 27695USA department of Chemistry and Chemical Biology Northeastern UniversityBostonMassachusetts 02115USA department of Chemistry and Biochemistry University of CaliforniaLos AngelesCalifornia 90095USA Advanced Light Source Lawrence Berkeley National LaboratoryBerkeleyCalifornia 94720USA department of Chemistry and Biochemistry University of CaliforniaSanta CruzCalifornia 95064USA department of Physics and Astronomy University of CaliforniaIrvineCalifornia 92697USA california Nanosystems Institute University of CaliforniaLos AngelesCalifornia 90095USA

The intermittent nature of renewable energy sources sets a requirement for efficient energy storage to mitigate the conflict between energy supply and *** is a promising choice for energy storage due to its high energy ***,the conversion of electrical energy to chemical energy stored in hydrogen through water electrolysis suffers from low efficiency,and the electricity cost dominates the total cost of hydrogen ***,we report the study of improving the hydrogen evolution reaction activity of Pt-based catalysts by building a nanoscale surface NiO and Pt interface,further optimizing the performance via tuning the lattice parameter of the core of nanoparticles,which can be achieved by varying the dealloying annealing *** optimized PtCuNi-O/C and PtNi-O/C catalysts are demonstrated to be one of the best catalysts,with a mass activity(MA)of 9.1 and 8.7 mA/μgPt,which is 9.9-fold and 9.5-fold of that of Pt/C,respectively.

关键词： lattice tuning Pt-based catalyst hydrogen evolution reaction electrocatalysis

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Two-dimensional materials for future information technology: status and prospects

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Science China(Information Sciences) 2024年第6期67卷 1-147页

作者： Hao QIU Zhihao YU Tiange ZHAO Qi ZHANG mingsheng XU Peifeng LI Taotao LI Wenzhong BAO Yang CHAI Shula CHEN Yiqi CHEN Hui-ming CHENG Daoxin DAI Zengfeng DI Zhuo DONG Xidong DUAN Yuhan FENG Yu FU Jingshu GUO Pengwen GUO Yue HAO Jun HE Xiao HE Jingyi HU Weida HU Zehua HU Xinyue HUANG Ziyang HUANG Ali IMRAN Ziqiang KONG jia LI Qian LI Weisheng LI Lei LIAO Bilu liu Can liu Chunsen liu Guanyu liu Kaihui liu Liwei liu Sheng liu Yuan liu Donglin LU Likuan MA Feng MIAO Zhenhua NI Jing NING Anlian PAN Tian-Ling REN Haowen SHU Litao SUN Yue SUN Quanyang TAO Zi-Ao TIAN Dong WANG Hao WANG Haomin WANG jialong WANG Junyong WANG Wenhui WANG Xingjun WANG Yeliang WANG Yuwei WANG Zhenyu WANG Yao WE... School of Electronic Science and engineering Nanjing University School of Integrated Circuits Interdisciplinary Research Center for Future Intelligent Chips (Chip-X)Nanjing University School of Integrated Circuit Science and engineering Nanjing University of Posts and Telecommunications State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences School of Physics and Key Lab of Quantum Materials and Devices of the Ministry of Education School of Electronic Science & EngineeringSoutheast University College of Integrated Circuits State Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang University Suzhou Laboratory State Key Laboratory of Integrated Chips and Systems School of MicroelectronicsFudan University Shaoxin Laboratory department of Applied Physics The Hong Kong Polytechnic University Key Laboratory for Micro-Nano Physics and Technology of Hunan Province College of Materials Science and EngineeringHunan University College of Integrated Circuits Zhejiang University Shenzhen Geim Graphene Center Shenzhen Key Laboratory of Layered Materials for Value-Added ApplicationsTsinghua-Berkeley Shenzhen Institute & Institute of Materials ResearchTsinghua Shenzhen International Graduate SchoolTsinghua University State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZijingang CampusZhejiang University National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics (SINANO)Chinese Academy of Sciences College of Chemistry and Chemical engineering Hunan University Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education) Department of PhysicsRenmin University of China School

Over the past 70 years, the semiconductor industry has undergone transformative changes,largely driven by the miniaturization of devices and the integration of innovative structures and materials. Two-dimensional(2D) materials like transition metal dichalcogenides(TMDs) and graphene are pivotal in overcoming the limitations of silicon-based technologies, offering innovative approaches in transistor design and functionality, enabling atomic-thin channel transistors and monolithic 3D integration. We review the important progress in the application of 2D materials in future information technology, focusing in particular on microelectronics and optoelectronics. We comprehensively summarize the key advancements across material production, characterization metrology, electronic devices, optoelectronic devices, and heterogeneous integration on silicon. A strategic roadmap and key challenges for the transition of 2D materials from basic research to industrial development are outlined. To facilitate such a transition, key technologies and tools dedicated to 2D materials must be developed to meet industrial standards, and the employment of AI in material growth, characterizations, and circuit design will be essential. It is time for academia to actively engage with industry to drive the next 10 years of 2D material research.

关键词： two-dimensional (2D) materials information technology production technology standardization of characterization microelectronicdevices optoelectronic devices multi-functional integration

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A review of converting woody biomass waste into useful and eco-friendly road materials

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Transportation Safety and Environment 2022年第1期4卷 2-16页

作者： Xue Zhang Hui Li John THarvey Ali AButt ming jia jiawen liu Key Laboratory of Road and Traffic engineering of the Ministry of Education College of Transportation EngineeringTongji University4800 Cao’an RdJiading DistrictShanghai 201804China Univerisity of california Pavement Research Center Department of Civil and Environmental EngineeringUniversity of CaliforniaDavisDavisCalifornia95616-8500USA Urban Mobility Institute Tongji University4800 Cao’an RdJiading DistrictShanghai 201804China

Because of abundant reserves and renewable and environmentally friendly properties,the utilization of woody biomass waste in road engineering can alleviate the shortage of fossil fuels and carbon emissions so as to mitigate global climate change and achieve sustainable development of road *** paper synthesizes the state of the art about the strategies of applying five kinds of resources derived from waste woody biomass,including biochar,bio-oil,lignin,wood ash and nanocellulose to road *** on the characteristics analysis of the five materials,it can be concluded that biochar can comprehensively improve the road performance of asphalt and its mixtures,and has the potential of runoff purification;bio-oil can soften asphalt and improve its lowtemperature performance,but has negative effects on high-temperature performance;lignin increases the asphalt ageing resistance and can be used as a regenerant,and will improve the overall performance of asphalt mixtures if combined with other modifiers;wood ash can increase subgrade bearing capacity and bring significant environmental benefits;nanocellulose improves the strength of cement mortar,but there is a lack of research on its effects on performance of pavement materials and the interaction mechanism;the lifecycle environmental and economic assessment of woody biomass-modified road materials is not ***,prospects were also summarized to show the opportunities for future study,such as the establishment of a database for *** review provides useful insights for the utilization of woody biomass as road materials to achieve waste management and sustainable development.

关键词： Road material Biomass Biochar Bio-oil Lignin Nanocellulose

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Recent advances in tip-enhanced Raman spectroscopy probe designs

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Nano Research 2023年第4期16卷 5555-5571页

作者： Da Xu Boqun Liang Yaodong Xu ming liu department of electrical and Computer engineering University of California-RiversideRiversideCalifornia 92521USA Materials Science and engineering program University of California-RiversideRiversideCalifornia 92521USA

Tip-enhanced Raman spectroscopy(TERS)imaging is a super-resolution imaging technique that features the merits of both surface-enhanced Raman spectroscopy(SERS)and scanning probe microscopy(SPM),such as the high chemical sensitivity from the former and the nanoscale spatial resolution from the *** advantages make TERS an essential nanospectroscopic characterization technique for chemical analysis,materials science,bio-sensing,*** probes,the most critical factor determining the TERS imaging quality,are expected to provide a highly confined electromagnetic hotspot with a minimized scattering background for the generation of Raman signals with high spatial *** two decades of development,numerous probe design concepts have been proposed and *** review provides a comprehensive overview of the state-of-the-art TERS probe designs,from the working mechanism to the practical *** start with reviewing the recent development of TERS configurations and the corresponding working mechanisms,including the SPM platforms,optical excitation/collection techniques,and probe preparation *** then review the emerging novel TERS probe designs,including the remote-excitation probes,the waveguide-based nanofocusing probes,the metal-coated nanofocusing probes,the nanowire-assisted selective-coupling probes,and the tapered metal-insulator-metal *** discussion focuses on a few critical aspects,including the surface-plasmon-polariton(SPP)hotspot excitation technique,conversion efficiency,working frequency,and *** the end,we review the latest TERS applications and give a perspective on the future of TERS.

关键词： tip-enhanced Raman spectroscopy plasmonics scanning probe microscopy nanoscale imaging nanophotonics nanofocusing

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Effect of stabilizing treatment on microstructure and stress rupture properties of phosphorus microalloyed Inconel 706 alloy

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Journal of Iron and Steel Research(International) 2023年第8期30卷 1613-1621页

作者： Sha Zhang Yu-chao Wu Yu Lil Zhong-pei Dail Dan jia Yan-fei Xu Guang-sheng Zeng Zhi-ming Guo jian liul College of Mechanical&electrical engineering Changsha UniversityChangsha 410022HunanChina Hunan engineering Research Center of Research and Development of Degradable Materials and Molding Technology Changsha UniversityChangsha 410022HunanChina Changsha Kaiple Technology Co. Ltd.Changsha 410114HunanChina Institute of Metal Research Chinese Academy of SciencesShenyang 110016LiaoningChina

The microstructure and stress rupture properties of Inconel 706 alloy microalloyed with phosphorus are examined under stabilizing and unstabilizing heat treatment *** was found that applying the stabilizing treatment resulted in a 98% increment in the stress rupture life and a 215% increment in the elongation tested at 650℃/690 MPa for the alloy compared to that under the unstabilizing heat treatment *** stabilizing treatment led to the precipitation of rod-shaped and needle-shaped n phases at the grain *** of γ'-γ" co-precipitates in the grain interior were noncompact form and compact form for the alloy under unstabilizing and stabilizing heat treatment conditions,*** on the microstructure characterizations,the improvement of stress rupture properties by the stabilizing treatment was attributed to the precipitation of n phases at the grain boundaries,which can hinder cracks initiation and propagation and relieve the stress concentration.

关键词： Superalloy Stabilization ηphase γ'-γ"co-precipitate Stress rupture property

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The global mismatch between equitable carbon dioxide removal liability and capacity

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National Science Review 2023年第12期10卷 111-123页

作者： Pu Yang Zhifu Mi Yi-ming Wei Steef V.Hanssen Lan-Cui liu D'Maris Coffman Xinlu Sun Hua Liao Yun-Fei Yao jia-Ning Kang Peng-Tao Wang Steven J.Davis The Bartlett School of Sustainable Construction University College London Energy and Power Group University of Oxford Exeter Sustainable Finance Centre University of Exeter Center for Energy and Environmental Policy Research Beijing Institute of Technology School of Management and Economics Beijing Institute of Technology department of Environmental Science Faculty of Science Radboud University Business School Beijing Normal University Strategy Plan department Sinopec Research Institute of Petroleum Engineering department of Earth System Science University of California

Limiting climate change to 1.5℃ and achieving net-zero emissions would entail substantial carbon dioxide removal(CDR) from the atmosphere by the mid-century,but how much CDR is needed at country level over time is *** purpose of this paper is to provide a detailed description of when and how much CDR is required at country level in order to achieve 1.5℃ and how much CDR countries can carry out *** allocate global CDR pathways among 170 countries according to 6 equity principles and assess these allocations with respect to countries’ biophysical and geophysical capacity to deploy *** global CDR to countries based on these principles suggests that CDR will,on average,represent～4% of nations’ total emissions in 2030,rising to ～17% in ***,equitable allocations of CDR,in many cases,exceed implied land and carbon storage *** estimate～15 % of countries(25)would have insufficient land to contribute an equitable share of global CDR,and ～40% of countries(71)would have insufficient geological storage *** more diverse CDR technologies are developed,the mismatch between CDR liabilities and land-based CDR capacities will lead to global demand for six GtCO2carbon credits from 2020 to *** demonstrates an imperative demand for international carbon trading of CDR.

关键词： carbon dioxide removal land-based solutions international equity

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A Lightweight and Robust User Authentication Protocol with User Anonymity for IoT-Based Healthcare

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Computer Modeling in engineering & Sciences 2022年第4期131卷 307-329页

作者： Chien-ming Chen Shuangshuang liu Shehzad Ashraf Chaudhry Yeh-Cheng Chen Muhammad Asghar khan College of Computer Science and engineering Shandong University of Science and TechnologyQingdao266590China department of Computer engineering Istanbul Gelisim UniversityIstanbul34310Turkey department of Computer Science University of CaliforniaDavisCA95616USA department of electrical engineering Hamdard UniversityIslamabad44000Pakistan

With the rise of the Internet of Things(IoT),the word“intelligent medical care”has increasingly become a major *** medicine adopts the most advanced IoT technology to realize the interaction between patients and people,medical institutions,andmedical ***,with the openness of network transmission,the security and privacy of information transmission have become a major ***,Masud et *** a lightweight anonymous user authentication protocol for IoT medical treatment,claiming that their method can resist various ***,through analysis of the protocol,we observed that their protocol cannot effectively resist privileged internal attacks,sensor node capture attacks,and stolen authentication attacks,and their protocol does not have perfect forward ***,we propose a new protocol to resolve the security vulnerabilities in Masud’s protocol and remove some redundant parameters,so as tomake the protocolmore compact and *** addition,we evaluate the security and performance of the new protocol and prove that the overall performance of the new protocol is better than that of other related protocols.

关键词： IoT intelligent medical user authentication

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Graphene oxide effects on the properties of Al2O3-Cu/35W5Cr composite

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Journal of Materials Science & Technology 2020年第2期37卷 185-199页

作者： Xiaohui Zhang Yi Zhang Baohong Tian Yanlin jia ming Fu Yong liu Kexing Song AlexAVolinsky Xiao Yang Hang Sun School of Materials Science and engineering Henan University of Science and TechnologyLuoyang 471023China Collaborative Innovation Center of Nonferrous Metals Henan ProvinceLuoyang 471023China Henan Key Laboratory of Nonferrous Materials Science and Processing Technology Luoyang 471023China College of Materials Science and engineering Beijing University of TechnologyBeijing 100124China China Airborne Missile Academy Luoyang 471023China department of Mechanical engineering University of South FloridaTampa 33620USA Luoyang Ship Material Research Institute Luoyang 471023China

Graphene oxide(GO)nanosheets were dispersed into premixed powders(Cu-0.4 wt%Al/35W5Cr)by wet grinding and vacuum freeze-drying *** 0.3 wt%GO/Al2O3-Cu/35W5Cr and 0.5 wt%GO/Al2O3-Cu/35W5Cr composites,used for electrical contacts,were fabricated by vacuum hot-pressing *** microstructure was analyzed by field emission scanning electron and transmission electron *** addition,the Raman spectroscopy and X-ray photoelectron spectroscopy were used to investigate the structural changes of GO before and after *** arc erosion behavior was investigated by the JF04 C electrical contact testing ***,the Al2O3 nanoparticles were evenly dispersed in the matrix,causing dislocation *** was converted to reduced graphene oxide after sintering.A group of carbon atoms combined with Cr forming Cr3C2 in situ during sintering,which enhanced the interface *** with the Al2O3-Cu/35W5Cr composite,the tensile strength of the two contact materials containing 0.3 wt%GO and 0.5 wt%GO was increased by 45%and 34%,***,pips and craters were present on the anode and cathode surfaces,*** has undergone re-sintering during arcing and formed needle-like *** with Al2O3-Cu/35W5Cr,the GO/Al2O3-Cu35W5Cr composites have better welding *** final mass transfer direction of the two composites was from the cathode to anode.

关键词： Graphene oxide Freeze-drying electrical contact In situ formed Cr3C2 Tensile strength

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