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Two-dimensional precise figuring of 500 mm-long X-ray mirror using one-dimensional ion beam system

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Advances in Manufacturing 2024年第1期12卷 177-184页

作者： Qiu-shi huang Han-Dan huang Qiao-Yu Wu Jun Yu Zhong Zhang Zhan-shan Wang MOE Key Laboratory of Advanced Micro-structured Materials Institute of Precision Optical Engineering(IPOE)School of Physics Science and EngineeringTongji UniversityShanghai200092People’s Republic of China shanghai Professional Technical service Platform for Full-spectrum and High-Performance Optical Thin Film Devices and Applications Tongji UniversityShanghai200092People’s Republic of China shanghai Frontiers science Center of Digital Optics Tongji UniversityShanghai200092People’s Republic of China

In this study,a new method was developed to realize two-dimensional(2D)figure correction of grazing-incidence X-ray mirrors using a one-dimensional(1D)ion-beam figuring system.A mask of holes was specifically designed to generate removal functions at different widths and extend the figuring capability over a wide ***,a long mirror could be *** this method,the surface height root-mean-square(RMs)error of the center area of 484 mm×16 mm was reduced from 11.49 nm to 2.01 nm,and the 1D meridional RMs error reached 1.0 *** proposed method exhibits high precision and cost effectiveness for production of long X-ray mirrors.

关键词： Long-size mirrors Ion beam figuring Two-dimensional figure correction Mask

Ultrathin organic solvent nanofiltration membrane with polydopamine-HKUsT-1 interlayer for organic solvent separation

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Journal of Environmental sciences 2024年第7期141卷 182-193页

作者： Haike Li Xindong Li guozai Ouyang Lijinhong huang Lang Li Wenhao Li Wanfu huang Duokun Li ganzhou Key Laboratory of Basin Pollution simulation and Control Jiangxi University of Science and TechnologyGanzhou 341000China Innovation Center for Water Quality security Technology at ganjiang River Basin Jiangxi University of Science and TechnologyGanzhou 341000China school of Architecture and Design Jiangxi University of Science and TechnologyGanzhou 341000China WA school of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityWA 6845Australia school of Materials science and Engineering Tiangong UniversityTianjin 300387China

Polydopamine(PDA)and metal-organic skeleton HKUsT-1 were co-deposited on the base membrane of hexamethylenediamine(HDA)-crosslinked polyetherimide(PEI)ultrafiltration membrane as the interlayer,and high-throughput organic solvent nanofiltration membrane(OsN)was prepared by interfacial polymerization and solvent activation *** polyamide(PA)layer surface roughness from 28.4 nm in PA/PEI to 78.3 nm in PA/PDA-HKUsT-10.6/PEI membrane,reduced the thickness of the separation layer from 79 to 14 nm,and significantly improved the hydrophilic,thermal and mechanical *** flux of the PA/PDA-HKUsT-10.6/PEI membrane in a 0.1 g/L Congo Red(CR)ethanol solution at 0.6 MPa test pressure reached 21.8 L/(m^(2)·hr)and the rejection of CR was 92.8%.solvent adsorption test,N,N-dimethylformamide(DMF)immersion experiment,and long-term operation test in ethanol showed that the membranes had high solvent *** solvent flux test demonstrated that,under the test pressure of 0.6 MPa,the flux of different solvents ranked as follows:methanol(56.9 L/(m^(2)·hr))>DMF(39.6 L/(m^(2)·hr))>ethanol(31.2 L/(m^(2)·hr))>IPA(4.5 L/(m^(2)·hr))>N-hexane(1.9 L/(m^(2)·hr)).The ability of the membranes to retain dyes in IPA/water dyes solution was also *** flux of the membrane was 30.4 L/(m^(2)·hr)and the rejection of CR was 91.6%when the IPA concentration reached 50%.This OsN membrane-making strategy is economical,environment-friendly and efficient,and has a great application prospect in organic solvent separation systems.

关键词： Interfacial polymerization Organic solvent nanofiltration Interlayer Metal-organic frameworks Polydopamine

Data secure storage Mechanism for IIoT Based on Blockchain

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Computers, Materials & Continua 2024年第3期78卷 4029-4048页

作者： Jin Wang guoshu huang R.simon sherratt Ding huang Jia Ni school of Computer science and Mathematics Fujian University of TechnologyFuzhou350118China school of Computer&Communication Engineering Changsha University of Science&TechnologyChangsha410004China school of systems Engineering The University of ReadingReadingRG66AYUK school of Computer Nanjing University of Information Science and TechnologyNanjing210044China

With the development of Industry 4.0 and big data technology,the Industrial Internet of Things(IIoT)is hampered by inherent issues such as privacy,security,and fault tolerance,which pose certain challenges to the rapid development of *** technology has immutability,decentralization,and autonomy,which can greatly improve the inherent defects of the *** the traditional blockchain,data is stored in a Merkle *** data continues to grow,the scale of proofs used to validate it grows,threatening the efficiency,security,and reliability of blockchain-based ***,this paper first analyzes the inefficiency of the traditional blockchain structure in verifying the integrity and correctness of *** solve this problem,a new Vector Commitment(VC)structure,Partition Vector Commitment(PVC),is proposed by improving the traditional VC ***,this paper uses PVC instead of the Merkle tree to store big data generated by *** can improve the efficiency of traditional VC in the process of commitment and ***,this paper uses PVC to build a blockchain-based IIoT data security storage mechanism and carries out a comparative analysis of *** mechanism can greatly reduce communication loss and maximize the rational use of storage space,which is of great significance for maintaining the security and stability of blockchain-based IIoT.

关键词： Blockchain IIoT data storage cryptographic commitment

Novel intelligent reasoning system for tool wear prediction and parameter optimization in intelligent milling

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Advances in Manufacturing 2024年第1期12卷 76-93页

作者： Long-Hua Xu Chuan-Zhen huang Zhen Wang Han-Lian Liu shui-Quan huang Jun Wang school of Mechanical Engineering Yanshan UniversityQinhuangdao066004HebeiPeople’s Republic of China Center for Advanced Jet Engineering Technologies(CaJET) Key Laboratory of High-efficiency and Clean Mechanical Manufacture(Ministry of Education)National Experimental Teaching Demonstration Center for Mechanical Engineering(Shandong University)School of Mechanical EngineeringShandong UniversityJinan250061People’s Republic of China Institute of Manufacturing Technology Guangdong University of TechnologyGuangzhou510006People’s Republic of China

Accurate intelligent reasoning systems are vital for intelligent *** this study,a new intelligent reasoning system was developed for milling processes to accurately predict tool wear and dynamically optimize machining *** developed system consists of a self-learning algorithm with an improved particle swarm optimization(IPsO)learning algorithm,prediction model determined by an improved case-based reasoning(ICBR)method,and optimization model containing an improved adaptive neural fuzzy inference system(IANFIs)and *** results showed that the IPsO algorithm exhibited the best global convergence *** ICBR method was observed to have a better performance in predicting tool wear than standard CBR *** IANFIs model,in combination with IPsO,enabled the optimization of multiple objectives,thus generating optimal milling *** paper offers a practical approach to developing accurate intelligent reasoning systems for sustainable and intelligent manufacturing.

关键词： Improved particle swarm optimization(IPsO)algorithm Improved case-based reasoning(ICBR)method Adaptive neural fuzzy inference system(ANFIs)model Tool wear prediction Intelligent manufacturing

Associations between parental adherence to healthy lifestyles and cognitive performance in offspring:A prospective cohort study in China

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Chinese Medical Journal 2024年第6期137卷 683-693页

作者： Rongxia Lv Yuhui huang siyi huang shiyi Wu siwen Wang guangyu Hu Yanan Ma Peige song Jorge E.Chavarro s.V.subramanian Chunling Lu Zhihui Li Changzheng Yuan school of Public Health the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang 310058China Department of Nutrition Harvard T.H.Chan School of Public HealthBostonMA 02115USA Institute of Medical Information/Center for Health Policy and Management Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Department of Biostatistics and Epidemiology School of Public HealthChina Medical UniversityShenyangLiaoning 110122China Department of social and Behavioral sciences Harvard T.H.Chan School of Public HealthBostonMA 02115USA Division of global Health Equity Brigham and Women’s HospitalHarvard Medical SchoolBostonMA 02115USA Department of global Health and social Medicine Harvard Medical SchoolBostonMA 02115USA Vanke school of Public Health Tsinghua UniversityBeijing 100084China Department of global Health and Population Harvard T.H.Chan School of Public HealthBostonMA 02115USA

Background:Previous studies have reported associations of specific maternal and paternal lifestyle factors with offspring’s cognitive development during early *** study aimed to investigate the prospective associations between overall parental lifestyle and offspring’s cognitive performance during adolescence and young adulthood in ***:We included 2531 adolescents aged 10-15 years at baseline in 2010 from the China Family Panel studies.A healthy parental lifestyle score(ranged 0-5)was constructed based on the following five modifiable lifestyle factors:smoking,drinking,exercise,sleep,and *** estimating equation models were used to examine the association between baseline parental healthy lifestyle scores and offspring’s fluid and crystallized intelligence in subsequent years(2012,2014,2016,and 2018).Results:Offspring in the top tertile of parental healthy lifestyle scores performed better in overall fluid intelligence(multivariable-adjusted β=0.53,95%confidence interval[CI]:0.29-0.77)and overall crystallized intelligence(multivariable-adjusted β=0.35,95%CI:0.16-0.54)than those in the bottom tertile of parental healthy lifestyle *** results were similar after further adjustment for the offspring’s healthy lifestyle scores and persisted across the subgroups of parental socioeconomic ***,maternal and paternal healthy lifestyle scores were independently associated with better offspring’s cognitive performance,with significant contribution observed for paternal never-smoking,weekly exercise,and diversified *** both parents and offspring adhered to a healthier lifestyle,we observed the highest level of the offspring’s overall crystallized ***:Our study indicates that parental adherence to a healthier lifestyle is associated with significantly better offspring’s cognitive performance during adolescence and early adulthood,regardless of socioeconomic *** findings highlight the poten

关键词： Cohort study Parental healthy lifestyle Offspring Cognitive performance Intelligence Adolescence

gENERALIZED JACOBI sPECTRAL gALERKIN METHOD FOR FRACTIONAL-ORDER VOLTERRA INTEgRO-DIFFERENTIAL EQUATIONs WITH WEAKLY sINgULAR KERNELs

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Journal of Computational Mathematics 2024年第2期42卷 355-371页

作者： Yanping Chen Zhenrong Chen Yunqing huang school of Mathematical sciences South China Normal UniversityGuangzhou 510631China Hunan Key Laboratory for Computation and simulation in science and Engineering Xiangtan UniversityXiangtan 411105China

For fractional Volterra integro-differential equations(FVIDEs)with weakly singular kernels,this paper proposes a generalized Jacobi spectral galerkin *** basis functions for the provided method are selected generalized Jacobi functions(gJFs),which can be utilized as natural basis functions of spectral methods for weakly singular FVIDEs when appropriately *** developed method's spectral rate of convergence is determined using the L^(∞)-norm and the weighted L^(2)-*** results indicate the usefulness of the proposed method.

关键词： generalized Jacobi spectral galerkin method Fractional-order Volterra integ-ro-differential equations Weakly singular kernels Convergence analysis

Dynamic simulation analysis of molten salt reactor-coupled air-steam combined cycle power generation system

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Nuclear science and Techniques 2024年第2期35卷 222-233页

作者： Jing-Lei huang guo-Bin Jia Li-Feng Han Wen-Qian Liu Li huang Zheng-Han Yang shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of sciences Beijing 100049China

A nonlinear dynamic simulation model based on coordinated control of speed and flow rate for the molten salt reactor and combined cycle systems is proposed here to ensure the coordination and stability between the molten salt reactor and power *** model considers the impact of thermal properties of fluid variation on accuracy and has been validated with *** study reveals the capability of the control system to compensate for anomalous situations and maintain shaft stability in the event of perturbations occurring in high-temperature molten salt tank outlet ***,the control system’s impact on the system’s dynamic characteristics under molten salt disturbance is also *** results reveal that after the disturbance occurs,the controlled system benefits from the action of the control,and the overshoot and disturbance amplitude are positively correlated,while the system power and frequency eventually return to the initial *** simulation model provides a basis for utilizing molten salt reactors for power generation and maintaining grid stability.

关键词： Molten salt reactor Combined cycle Dynamic characteristic Control

Physiological and pathological functions of circular RNAs in the nervous system

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Neural Regeneration Research 2024年第2期19卷 342-349页

作者： Min Zhou shi Li Chuan huang school of Life sciences Chongqing UniversityChongqingChina

Circular RNAs(circRNAs)are a class of covalently closed single-stranded RNAs that are expressed during the development of specific cells and *** play crucial roles in physiological and pathological processes by sponging microRNAs,modulating gene transcription,controlling the activity of certain RNA-binding proteins,and producing functional peptides.A key focus of research at present is the functionality of circRNAs in the nervous system and several advances have emerged over the last 2 ***,the precise role of circRNAs in the nervous system has yet to be comprehensively *** this review,we first summarize the recently described roles of circRNAs in brain development,maturity,and ***,we focus on the involvement of circRNAs in various diseases of the central nervous system,such as brain cancer,chronic neurodegenerative diseases,acute injuries of the nervous system,and neuropathic pain.A better understanding of the functionality of circRNAs will help us to develop potential diagnostic,prognostic,and therapeutic strategies to treat diseases of the nervous system.

关键词： Alzheimer’s disease amyotrophic lateral sclerosis brain development circRNAs neuropathic pain Parkinson’s disease

Analyses of Political Crisis Impact on Tourism:A Panel Counterfactual Approach with Internet search Index

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Journal of systems science & Complexity 2024年第4期37卷 1581-1603页

作者： huang Bai sUN Yuying YANg Boyu school of statistics and Mathematics Central University of Finance&EconomicsBeijing 102206China Academy of Mathematics and systems science Chinese Academy of SciencesBeijing 100190China Center for Forecasting science Chinese Academy of SciencesBeijing 100190China school of Economics and Management University of Chinese Academy of SciencesBeijing 100190China

Existing research has shown that political crisis events can directly impact the tourism ***,the current methods suffer from potential changes of unobserved variables,which poses challenges for a reliable evaluation of the political crisis *** paper proposes a panel counterfactual approach with Internet search index,which can quantitatively capture the change of crisis impacts across time and disentangle the effect of the event of interest from the *** also provides a tool to examine potential channels through which the crisis may affect tourist *** research empirically applies the framework to analyze the THAAD event on tourist flows from the Chinese Mainland to south *** highlight the strong and negative short-term impact of the political crisis on the tourists' intentions to visit a *** paper provides essential evidence to help decision-makers improve the management of the tourism crisis.

关键词： Composite search index counterfactual analysis political crisis search query data tourism demand