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Multi-Blockchain Based Data Trading Markets With Novel Pricing Mechanisms

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IEEE/CAA Journal of Automatica Sinica 2023年第12期10卷 2222-2232页

作者： Juanjuan Li Junqing Li Xiao Wang Rui Qin Yong Yuan Fei-Yue Wang IEEE the State Key Laboratory of Multimodal Artificial Intelligence Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China the College of Computer science and Engineering Shandong University of Science and TechnologyQingdao 266590China the School of Artificial Intelligence Anhui UniversityHefei 266114 the Qingdao Academy of Intelligent Industries Qingdao 230031China the School of Mathematics Renmin University of ChinaBeijing 100872China the State Key Laboratory for Management and Control of Complex Systems Chinese Academy of SciencesBeijing 100190 the Faculty of Innovation Engineering Macao University of Science and TechnologyMacao 999078China

In the era of big data,there is an urgent need to establish data trading markets for effectively releasing the tremendous value of the drastically explosive *** security and data pricing,however,are still widely regarded as major challenges in this respect,which motivate this research on the novel multi-blockchain based framework for data trading markets and their associated pricing *** this context,data recording and trading are conducted separately within two separate blockchains:the data blockchain(DChain) and the value blockchain(VChain).This enables the establishment of two-layer data trading markets to manage initial data trading in the primary market and subsequent data resales in the secondary ***,pricing mechanisms are then proposed to protect these markets against strategic trading behaviors and balance the payoffs of both suppliers and ***,in regular data trading on VChain-S2D,two auction models are employed according to the demand scale,for dealing with users’ strategic *** incentive-compatible Vickrey-Clarke-Groves(VCG)model is deployed to the low-demand trading scenario,while the nearly incentive-compatible monopolistic price(MP) model is utilized for the high-demand trading *** temporary data trading on VChain-D2S,a reverse auction mechanism namely two-stage obscure selection(TSOS) is designed to regulate both suppliers’ quoting and users’ valuation ***,experiments are carried out to demonstrate the strength of this research in enhancing data security and trading efficiency.

关键词： Auction data trading markets multi-blockchain pricing mechanisms

Production rates of cosmogenic nuclei on the lunar surface

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Chinese Physics C 2014年第7期38卷 63-68页

作者：董铁矿贠素君马涛常进董武东张小平李国龙任中洲 Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryCAS Nanjing XiaoZhuang University Space science Institute Macao University of Science and Technology Avenida Wai Long Taipa Macao China Department of Physics Nanjing University Center of Theoretical Nuclear Physics National Laboratory of Heavy-Ion Accelerator

A physical model for Geant4-based simulation of the galactic cosmic ray （GCR） particles＇ interaction with the lunar surface matter has been developed to investigate the production rates of cosmogenic nuclei. In this model the GCRs, mainly very high energy protons and 0c particles, bombard the surface of the Moon and produce many secondary particles, such as protons and neutrons. The energies of protons and neutrons at different depths are recorded and saved as ROOT files, and the analytical expressions for the differential proton and neutron fluxes are obtained through the best-fit procedure using ROOT software. To test the validity of this model, we calculate the production rates of the long-lived nuclei 10Be and 26Al in the Apollo 15 long drill core by combining the above differential fluxes and the newly evaluated spallation reaction cross sections. Our numerical results show that the theoretical production rates agree quite well with the measured data, which means that this model works well. Therefore, it can be expected that this model can be used to investigate the cosmogenic nuclei in future lunar samples returned by the Chinese lunar exploration program and can be extended to study other objects, such as meteorites and the Earth＇s atmosphere.

关键词： cosmogenic nuclei Geant4 spallation reaction

A toxicological study of inhalable particulates by plasmid DNA assay:A case study from macao

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science China Earth sciences 2013年第6期56卷 1037-1043页

作者： SHAO LongYi SHEN RongRong WANG Jing WANG ZhiShi TANG Uwa YANG ShuShen State Key Laboratory of Coal Resources and Safe Mining and College of Geosciences and Surveying EngineeringChina University of Mining and Technology Faculty of science and technology University of Macao Zhongyuan University of technology

Oxidative damage to plasmid DNA induced by airborne PM10 （particulate matter with an aerodynamic diameter of 10 μm or less） is caused by the bioavailable （i.e., soluble） heavy metals on the particle surface. However, quantitative analyses of the links between PM10 and oxidative damage are limited. In this study, plasmid DNA assay and ICP-MS were applied to study oxidative capacity and trace element compositions, respectively, of summer and winter PM10 samples collected at several sites （Sun Yat Sen Municipal Park （SYSP） and Av. de Horta e Costa （AHC） on the macao peninsula and macao University on Tai- pa Island （TI）） in macao. At AHC and TI, the oxidative capacity of PM10 collected in winter was higher than that collected in summer, for both the whole sample and the water-soluble fraction. In contrast, no seasonal variation was noted at SYSP. PMI0 exhibited the highest oxidative capacity at SYSP and lowest oxidative capacity at TI in both seasons, demonstrating that the PMl0 collected on the macao peninsula had a higher toxicity than that from Taipa Island. ICP-MS analyses revealed that the concentrations of total analyzed trace elements and their water-soluble components in PMI0 from TI and AHC were higher in winter than in summer, whereas SYSP displayed the opposite trend. The extents of oxidative damage induced by the wa- ter-soluble fractions and intact whole particles were generally similar, implying that the oxidative damage caused by particles in macao resulted mainly from the water-soluble fraction. The oxidative capacities of PM10 were positively correlated with both whole and soluble Zn at the 95% confidence level, indicating that Zn was the major element responsible for the oxidative damage caused by particles in macao. Other heavy metals, such as Cr, Cu, Cd, Ni, As, and Pb, also exhibited elevated concen- trations, and the potential health impacts of these metals should be considered.

关键词： inhalable particulate matter (PM10) oxidative damage heavy metals macao

Groove formation on Phobos from reimpacting orbital ejecta of the Stickney crater

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Earth and Planetary Physics 2022年第3期6卷 294-303页

作者： XiangYu Xi Min Ding MengHua Zhu State Key Laboratory of Lunar and Planetary sciences Macao University of Science and TechnologyMacaoChina China National Space Administration Macao Center for Space Exploration and ScienceMacaoChina

Numerous linear grooves have long been recognized as covering the surface of Phobos, but the mechanisms of their formation are still unclear. One possible mechanism is related to the largest crater on Phobos, the Stickney crater, whose impact ejecta may slide,roll, bounce, and engrave groove-like features on Phobos. When the launch velocity is higher than the escape velocity, the impact ejecta can escape Phobos. A portion of these high-velocity ejecta are dragged by the gravitational force of Mars, fall back, and reimpact *** this research, we numerically test the hypothesis that the orbital ejecta of the Stickney crater that reimpact Phobos could be responsible for a particular subset of the observed grooves on Phobos. We adopt impact hydrocode i SALE-2 D(impact-Simplified Arbitrary Lagrangian Eulerian, two-dimensional) to simulate the formation of the Stickney crater and track its impact ejecta, with a focus on orbital ejecta with launch velocities greater than the escape velocity of Phobos. The launch velocity distribution of the ejecta particles is then used to calculate their trajectories in space and determine their fates. For orbital ejecta reimpacting Phobos, we then apply the sliding boulder model to calculate the ejecta paths, which are compared with the observed groove distribution and length to search for causal relationships. Our ejecta trajectory calculations suggest that only ~1% of the orbital ejecta from the Stickney crater can reimpact Phobos. Applying the sliding boulder model, we predict ejecta sliding paths of 9-20 km in a westward direction to the east of the zone of avoidance, closely matching the observed grooves in that region. The best-fit model assumes an ejecta radius of ~150 m and a speed restitution coefficient of 0.3, consistent with the expected ejecta and regolith properties. Our calculations thus suggest the groove class located to the east of the zone of avoidance may have been caused by reimpact orbital ejecta from the Stick

关键词： Phobos groove formation Stickney crater reimpact ejecta

A"three musketeers"tactic for inclining interferon-γ as a comrade-in-arm to reinforce the synergistic-tumoricidal therapy

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Nano Research 2022年第4期15卷 3458-3470页

作者： Wenxi Li Lisi Xie Yi Ju Zhan Zhang Bei Li Jie Li Wei Sang Guohao Wang Hao Tian Yunlu Dai Cancer Centre and Institute of Translational Medicine Faculty of Health SciencesUniversity of MacaoMacao 999078China MOE Frontiers science Center for Precision Oncology University of MacaoMacao 999078China School of Health and Biomedical sciences RMIT UniversityBundooraVictoria 3083Australia

Interferon-γ(IFN-γ),secreted by activated T cells predominantly,plays a crucial performance in the tumoricidal immune ***,a high level of IFN-γseverely ignites the immunosuppressive response,especially by increasing the expression of immune checkpoint programmed death-ligand 1(PD-L1)and immunoregulatory enzyme indoleamine 2,3-dioxygenase 1(IDO-1).Herein,we have explored a versatile IFN-γ-nano-integrator(aPD-L1-SH@Ce6@NLG919-PEG,simplified as CNDP)to establish a positive anti-tumor feedback loop to amplify the IFN-γ-mediated tumoricidal *** this nanointegrator,photosensitizer chlorin e6(Ce6)mediates photodynamic therapy(PDT)to re-shape immunogenicity and activate the adaptive immune response,followed by the secretion of high-level IFN-γto struggle tumor ***-1 inhibitor(NLG919)afterwards mitigates the immunosuppressive behavior of IFN-γby neutralizing the function of *** turn“waste”into wealth,anti-PD-L1(aPD-L1)antibodies are technically integrated into the nano-integrator to propel the precise attack of breast cancer through ascending PD-L1 ***,this“three musketeers”nano-integrator tumoricidal tactic may give a unique insight into the clinical anti-tumor therapy.

关键词： interferon-γ(IFN-γ) anti-PD-L1(aPD-L1) IDO-1 inhibitor(NLG919) neutralization tumoricidal positive anti-tumor feedback loop

The effect of model errors in ensemble sequential assimilation of geomagnetic field

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Earth and Planetary Physics 2023年第1期7卷 22-31页

作者： JinFeng Li YuFeng Lin KeKe Zhang Department of Earth and Space sciences Southern University of Science and TechnologyShenzhen 518055China State Key Laboratory of Lunar and Planetary sciences Macao University of Science and TechnologyTaipaMacaoChina

Earth’s magnetic field is generated in the fluid outer core through the dynamo *** the last decade,data assimilation has been used to retrieve the core dynamics and predict the evolution of the geomagnetic *** presence of model errors in the geomagnetic data assimilation is inevitable because current numerical geodynamo models are still far from realistic core *** this paper,we investigate the effect of model errors in geomagnetic data assimilation based on ensemble Kalman filter(EnKF).We construct two dynamo models with different control parameters but exhibiting similar force balance and magnetic morphology at the core *** then use one dynamo model to generate synthetic observations and the other as the forward model in *** test experiments show that the EnKF approach with the pre-setting model errors can nevertheless recover large-scale core surface flow and make a rough short-term(5-year)***,the data assimilation in the presence of model errors cannot keep improving the core state even though new observations are *** by the planned macao science Satellite-1,which is expected to provide improved internal geomagnetic field model,we also perform a test experiment using synthetic observations up to spherical harmonic degree l=*** results indicate that high-resolution observations are crucial in reconstructing small scale flow.

关键词： geomagnetic field geodynamo data assimilation

Performance Evaluation of Public Bus Transportation by Using DEA Models and Shannon’s Entropy:An Example From a Company in a Large City of China

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IEEE/CAA Journal of Automatica Sinica 2021年第4期8卷 779-795页

作者： Zicheng Liu Naiqi Wu Yan Qiao Zhiwu Li Institute of Systems Engineering and the Collaborative Laboratory for Intelligent science and Systems Macao University of Science and TechnologyMacaoChina Institute of Systems Engineering and the Collaborative Laboratory for Intelligent science and Systems Macao University of Science and Technologyand also with the State Key Laboratory of Precision Electronic Manufacturing Technology and EquipmentGuangdong University of TechnologyGuangzhou 510006China

The purpose of this paper is to assess the operational efficiency of a public bus transportation via a case study from a company in a large city of China by using data envelopment analysis(DEA)model and Shannon’s *** company operates 37 main routes on the backbone ***,it plays a significant role in public transportation in the *** to bus industry norms,an efficiency evaluation index system is constructed from the perspective of both company operations and passenger *** passenger satisfaction,passenger waiting time and passenger-crowding degree are considered,and they are undesirable *** describe such indicators,a superefficient DEA model is *** this model,by using actual data,efficiency is evaluated for each bus *** show that the DEA model with Shannon’s entropy being combined achieves more reasonable ***,sensitivity analysis is ***,the results are meaningful for the company to improve its operations and management.

关键词： Performance evaluation public transportation system Shannon’s entropy super-efficiency data envelopment analysis undesirable outputs

Scheduling Dual-Arm Multi-Cluster Tools With Regulation of Post-Processing Time

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IEEE/CAA Journal of Automatica Sinica 2023年第8期10卷 1730-1742页

作者： Qinghua Zhu Bin Li Yan Hou Hongpeng Li Naiqi Wu IEEE the School of Computer science and technology Guangdong University of TechnologyGuangzhou 510006China the Institute of Systems Engineering and Collaborative Laboratory for Intelligent science and Systems Macao University of Science and TechnologyMacao 999078China

As wafer circuit width shrinks down to less than ten nanometers in recent years,stringent quality control in the wafer manufacturing process is increasingly *** to the coupling of neighboring cluster tools and coordination of multiple robots in a multi-cluster tool,wafer production scheduling becomes rather *** a wafer is processed,due to high-temperature chemical reactions in a chamber,the robot should be controlled to take it out of the processing chamber at the right *** order to ensure the uniformity of integrated circuits on wafers,it is highly desirable to make the differences in wafer post-processing time among the individual tools in a multicluster tool as small as *** achieve this goal,for the first time,this work aims to find an optimal schedule for a dual-arm multi-cluster tool to regulate the wafer post-processing *** do so,we propose polynomial-time algorithms to find an optimal schedule,which can achieve the highest throughput,and minimize the total post-processing time of the processing *** propose a linear program model and another algorithm to balance the differences in the post-processing time between any pair of adjacent cluster *** industrial examples are given to illustrate the application and effectiveness of the proposed method.

关键词： Cluster tool optimization scheduling

Ambient Fast Synthesis of Superaerophobic/Superhydrophilic Electrode for Superior Electrocatalytic Water Oxidation

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