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The DAO to MetaControl for MetaSystems in Metaverses:The System of Parallel Control Systems for Knowledge Automation and Control Intelligence in CPSS

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IEEE/CAA Journal of Automatica Sinica 2022年第11期9卷 1899-1908页

作者： fei-Yue wang The State Key Laboratory for Management and Control of Complex Systems Chinese Academy of SciencesBeijing100190Chi the Macao Institute of Systems Engineering Macao University of Science and TechnologyMacao999078China

An investigation and outline of MetaControl and DeControl in Metaverses for control intelligence and knowledge automation are *** control with prescriptive knowledge and parallel philosophy is proposed as the starting point for the new control philosophy and technology,especially for computational control of metasystems in cyberphysical-social *** argue that circular causality,the generalized feedback mechanism for complex and purposive systems,should be adapted as the fundamental principle for control and management of metasystems with metacomplexity in ***,an interdisciplinary approach is suggested for MetaControl and DeControl as a new form of intelligent control based on five control metaverses:MetaVerses,MultiVerses,InterVerses,TransVerse,and DeepVerses.

关键词： MetaControl MetaSystems Metaverses CPSS DAO DeControl Prescriptive Control Parallel Control Computational Control Knowledge Automation Control Intelligence Parallel Intelligence

Processing and analysis of transient pressure measurements from permanent down-hole gauges

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Petroleum Science 2012年第3期9卷 330-335页

作者： wang fei School of Petrolcum Engineering China University of PetroleumBeijing 102249China

With permanent down-hole gauges （PDGs） widely installed in oilfields around the world in recent years, a continuous stream of transient pressure data in real time is now available, which motivates a new round of research interests in further developing pressure transient processing and analysis techniques. Transient pressure measurements from PDG are characterized by long term and high volume data. These data are recorded under unconstrained circumstances, so effects due to noise, rate fluctuation and interference from other wells cannot be avoided. These effects make the measured pressure trends decline or rise and then obscure or distort the actual flow behavior, which makes subsequent analysis difficult. In this paper, the problems encountered in analysis of PDG transient pressure are investigated. A newly developed workflow for processing and analyzing PDG transient pressure data is proposed. Numerical well testing synthetic studies are performed to demonstrate these procedures. The results prove that this new technique works well and the potential for practical application looks very promising.

关键词： Permanent down-hole gauge transient pressure data processing deconvolution technique numerical well testing

A new vibration mechanism of balancing machine for satellite-borne spinning rotors

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Chinese Journal of Aeronautics 2014年第5期27卷 1318-1326页

作者： wang Qiuxiao wang fei College of Mechanical Engineering Chongqing University

The centrifugal force and overturning moment generated by satellite-borne rotating payload have a significant impact on the stability of on-orbit satellite attitude, which must be controlled to the qualified range. For the satellite-borne rotors＇ low working revs and large centroidal deviation and height, and that the horizontal vibration produced by centrifugal force is not of the same magnitude as the torsional vibration by overturning moment, the balancing machine＇s measurement accuracy is low. Analysis shows that the mixture of horizontal vibration and torsional vibration of the vibrational mechanism contribute mainly to the machine＇s performance, as well as the instability of vibration center position. A vibrational mechanism was put forward, in which the horizontal and torsional vibration get separated effectively by way of fixing the vibration center. From experimental results, the separation between the weak centrifugal force signal and the strong moment signal was realized, errors caused by unstable vibration center are avoided, and the balancing machine based on this vibration structure is able to meet the requirements of dynamic balancing for the satellite＇s rotating payloads in terms of accuracy and stability.

关键词： Rotational unbalance Satellite-borne rotor Separation of static unbalance and couple unbalance Vertical balancing machine Vibration measurement

New Control Paradigm for Industry 5.0:From Big Models to Foundation Control and Management

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IEEE/CAA Journal of Automatica Sinica 2023年第8期10卷 1643-1646页

作者： fei-Yue wang IEEE the State Key Laboratory for Management and Control of Complex Systems Chinese Academy of SciencesBeijing 100190China

DO we need a fundamental change in our professional culture and knowledge foundation for control and automation?If so,what are necessary and critical steps we must take to ensure such a change would take place effecti... 详细信息

关键词： smoothly steps culture

The Metaverse of Mind:Perspectives on DeSci for DeEco and DeSoc

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IEEE/CAA Journal of Automatica Sinica 2022年第12期9卷 2043-2046页

作者： fei-Yue wang IEEE The State Key Laboratory for Management and Control of Complex Systems Chinese Academy of SciencesBeijing100190China Macao Institute of Systems Engineering Macao University of Science and TechnologyMacao999078China

First of all, I would like to take this opportunity to express my sincere and deep thanks to our Editor-in-Chief, Professor Meng Chu Zhou, who took over my position after I was drafted for rejuvenating IEEE Transactions on Computational Social Systems in 2017. During the past five years, Meng Chu’s professional leadership and dedication has transformed IEEE/CAA Journal of Automatica Sinica(JAS) from its infancy to a young and high-impact publication in the world that is full of vitality and actively engaged by a group of talented and charged associate Ei Cs and editors, which is clearly demonstrated in Meng Chu’s farewell editorial [1]. I am very glad that Professor Qing-Long Han, an influential and leading scientist of the world-class in AI, control, automation, and intelligent science and technology from Australia, as well as a staunch supporter and great leader of this journal from its beginning, will take over the Ei C torch from Meng Chu next year, since I am extremely confident that our journal will reach a new high for its service and quality under his new leadership.

关键词： journal leadership Australia

Role of oxygen vacancy inducer for graphene in graphene-containing anodes

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Frontiers of Chemical Science and Engineering 2023年第3期17卷 326-333页

作者： fei wang Jian Mao College of Materials Science and Engineering Sichuan UniversityChengdu 610065China

Currently,graphene is only considered as a conductive additive and expansion inhibitor in oxides/graphene composite *** this study,a new graphene role(oxygen vacancy inducer)in graphene/oxides composites anodes,which are treated at high-temperature,is proposed and verified using experiments and density functional theory *** high-temperature processing,graphene forms carbon vacancies due to increased thermal vibration,and the carbon vacancies capture oxygen atoms,facilitating the formation of oxygen vacancies in ***,the induced oxygen vacancy concentrations can be regulated by sintering temperatures,and the behavior is unaffected by oxide crystal structures(crystalline and amorphous)and morphology(size and shape).According to density functional theory calculations and electrochemical measurements,the oxygen vacancies enhance the lithiumion storage *** findings can result in a better understanding of graphene’s roles in graphene/oxide composite anodes,and provide a new method for designing high-performance oxide anodes.

关键词： oxide oxygen vacancy graphene anode density functional theory calculation

HAS Dynamic Buffer-Driven Resource Management to Enhance QoE in Mobile Network

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China Communications 2017年第7期14卷 11-24页

作者： fei wang Zesong fei Jing wang School of Information and Electronics Beijing Institute of Technology

Hypertext transfer protocol(HTTP) adaptive streaming(HAS) plays a key role in mobile video transmission. Considering the multi-segment and multi-rate features of HAS, this paper proposes a buffer-driven resource management(BDRM) method to enhance HAS quality of experience(QoE) in mobile network. Different from the traditional methods only focusing on base station side without considering the buffer, the proposed method takes both station and client sides into account and end user's buffer plays as the drive of whole schedule process. The proposed HAS QoE influencing factors are composed of initial delay, rebuffering and quality level. The BDRM method decomposes the HAS QoE maximization problem into client and base station sides separately to solve it in multicell and multi-user video playing scene in mobile network. In client side, the decision is made based on buffer probe and rate request algorithm by each user separately. It guarantees the less rebuffering events and decides which HAS segment rate to fetch. While, in the base station side, the schedule of wireless resource is made to maximize the quality level of all access clients and decides the final rate pulled from HAS server. The drive of buffer and twice rate request schemes make BDRMtake full advantage of HAS's multi-segment and multi-rate features. As to the simulation results, compared with proportional fair(PF), Max C/I and traditional HAS schedule(THS) methods, the proposed BDRM method decreases rebuffering percent to 1.96% from 11.1% with PF and from 7.01% with THS and increases the mean MOS of all users to 3.94 from 3.42 with PF method and from 2.15 with Max C/I method. It also guarantees a high fairness with 0.98 from the view of objective and subjective assessment metrics.

关键词： resource management Hypertexl transfer protocol (HTTP) adaptive streaming (HAS) buffer rate request quality of experience (QoE) mobile network

Empirical evidence for estimation of subsurface settlement caused by tunneling in sand

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Underground Space 2021年第5期6卷 577-584页

作者： fei wang School of Engineering Tarleton State University1333W.Washington StreetStephenvilleTX 76402USA

Tunneling is vital for augmenting urban infrastructure systems in big ***,the ground movement or settlement induced by tunneling can cause significant damage to the surrounding buildings,bridges,roadways,pipelines,and so *** theoretical and empirical methods have been proposed to estimate the settlement trough at the ground surface caused by *** settlement caused by tunneling in clay has been investigated extensively to evaluate the safety of pipelines and foundations above tunnels based on the assumption of a constant volume of the settlement trough along the ***,subsurface settlement induced by tunneling in sand has not been understood well due to the change of volume of settlement trough along the *** though an empirical method was developed by the author based on lab-scale model test results,it has not been validated using observational data from case *** this study,three case histories from the literature were used to verify the effectiveness of the aforementioned empirical method for estimating the subsurface settlement caused by tunneling in *** comparison of the calculated results and measurements from the case histories demonstrates that the empirical method is effective to predict the subsurface settlement caused by tunneling in sand.

关键词： Tunneling Subsurface settlement Case histories Sand

Quantitative evaluation of gas hydrate reservoir by AVO attributes analysis based on the Brekhovskikh equation

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Petroleum Science 2023年第4期20卷 2045-2059页

作者： Yao wang Yan-fei wang Key Laboratory of Petroleum Resources Research Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China University of Chinese Academy of Sciences Beijing100049China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing100029China

AVO (Amplitude variation with offset) technology is widely used in gas hydrate research. BSR (Bottom simulating reflector), caused by the huge difference in wave impedance between the hydrate reservoir and the underlying free gas reservoir, is the bottom boundary mark of the hydrate reservoir. Analyzing the AVO attributes of BSR can evaluate hydrate reservoirs. However, the Zoeppritz equation which is the theoretical basis of conventional AVO technology has inherent problems: the Zoeppritz equation does not consider the influence of thin layer thickness on reflection coefficients;the approximation of the Zoeppritz equation assumes that the difference of wave impedance between the two sides of the interface is small. These assumptions are not consistent with the occurrence characteristics of natural gas hydrate. The Brekhovskikh equation, which is more suitable for thin-layer reflection coefficient calculation, is used as the theoretical basis for AVO analysis. The reflection coefficients calculated by the Brekhovskikh equation are complex numbers with phase angles. Therefore, attributes of the reflection coefficient and its phase angle changing with offset are used to analyze the hydrate reservoir's porosity, saturation, and thickness. Finally, the random forest algorithm is used to predict the reservoir porosity, hydrate saturation, and thickness of the hydrate reservoir. In the synthetic data, the inversion results based on the four attributes of the Brekhovskikh equation are better than the conventional inversion results based on the two attributes of Zoeppritz, and the thickness can be accurately predicted. The proposed method also achieves good results in the application of Blake Ridge data. According to the method proposed in this paper, the hydrate reservoir in the area has a high porosity (more than 50%), and a medium saturation (between 10% and 20%). The thickness is mainly between 200m and 300m. It is consistent with the previous results obtained by veloci

关键词： Natural gas hydrate Brekhovskikh equation AVO attributes Random forest