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Phase Two of the Integrative Monsoon Frontal Rainfall Experiment(IMFRE-II)over the Middle and Lower Reaches of the yangtze River in 2020

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Advances in Atmospheric Sciences 2021年第3期38卷 346-356页

作者： Chunguang CUI Xiquan DONG Bin WANG hao yang Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research Institute of Heavy RainChina Meteorological AdministrationWuhan 430205China Department of Hydrology and Atmospheric Sciences University of ArizonaTucsonArizona 85721-0011USA

Phase Two of the Integrative Monsoon Frontal Rainfall Experiment(IMFRE-II)was conducted over the middle and lower reaches of the yangtze River during the period 16 June to 19 July *** paper provides a brief overview of the IMFRE-II field campaign,including the multiple ground-based remote sensors,aircraft probes,and their corresponding measurements during the 2020 mei-yu period,as well as how to use these numerous datasets to answer scientific *** highlights of IMFRE-II are:(1)to the best of our knowledge,IMFRE-II is the first field campaign in China to use ground-based,airborne,and spaceborne platforms to conduct comprehensive observations over the middle and lower reaches of the yangtze River;and(2)seven aircraft flights were successfully carried out,and the spectra of ice particles,cloud droplets,and raindrops at different altitudes were *** in-situ measurements will provide a“cloud truth”to validate the ground-based and satellite-retrieved cloud and precipitation properties and quantitatively estimate their retrieval *** are also crucial for the development of a warm(and/or cold)rain conceptual model in order to better understand the cloud-to-rain conversion and accretion processes in mei-yu precipitation *** an integrative analysis of ground-based,aircraft,and satellite observations and model simulations,we can significantly improve our cloud and precipitation retrieval algorithms,investigate the microphysical properties of cloud and precipitation,understand in-depth the formation and dissipation mechanisms of mei-yu frontal systems,and improve cloud microphysics parameterization schemes and model simulations.

关键词： 2020 mei-yu frontal systems IMFRE-II and its highlights Comprehensive observations from groundbased airborne and spaceborne platforms

Dynamic Trigger and Moisture Source of Two Typical Meiyu Front Rainstorms Associated with Eastward-Moving Cloud Clusters from the Tibetan Plateau

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Journal of Meteorological Research 2022年第3期36卷 478-499页

作者： hao yang Yi DENG Chunguang CUI Xiaofang WANG Xiquan DONG Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research Institute of Heavy RainChina Meteorological AdministrationWuhan 430205China School of Earth and Atmospheric Sciences Georgia Institute of TechnologyAtlanta 30314USA Department of Hydrology and Atmospheric Sciences University of ArizonaTucson 85718USA

Eastward-moving cloud clusters from the Tibetan Plateau(TP)often trigger heavy rainfall events in the yangtze River basin in *** these events in an operational environment remains a challenging ***,dynamical diagnosis and a Lagrangian trajectory model are used to analyze the background atmospheric circulation,maintenance mechanism,and moisture transport of two Meiyu front rainstorms(MYFR)during 30 June-2 July 2016 and 17-19 June 2018 associated with eastward-moving cloud clusters from the *** is shown that in both cases heavy rainfall is characterized by semi-continuous rainbelts extending from the eastern TP to the yangtze River valleys with eastward-spreading convective clouds weakening and strengthening alternately from the eastern TP to downstream *** the track of positive water vapor advection,centers of positive vorticity propagate downstream through the Sichuan *** baroclinic thermodynamic–dynamical interaction and the barotropic nonequilibrium force work against each other in the development of the ***,during the early stage of precipitation development,the barotropic non-equilibrium force dominates,while during the period of heavy precipitation the baroclinic thermodynamic-dynamical interaction *** convergence associated with the baroclinic thermodynamic-dynamical interaction guarantees the persistence of heavy *** to the climate mean state(1988-2018),both MYFR events associated with eastward-moving cloud clusters from the eastern TP are characterized by increased moisture transport from the *** of the major paths of moisture transport in both cases is along the south side of the TP,directly connected to the eastward movement of cloud clusters.

关键词： Meiyu front rainstorm(MYFR) eastward-moving cloud clusters dynamic trigger water vapor transport

Recent Advances in Organ Specific Wireless Bioelectronic Devices:Perspective on Biotelemetry and Power Transfer Using Antenna Systems

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Engineering 2022年第4期8卷 27-41页

作者： Ahsan Noor Khan Young-Ok Cha Henry Giddens yang hao School of Electronic Engineering and Computer Science Queen Mary University of LondonLondon E14NSUK

The integration of electronics and biology has spawned bioelectronics and opened exciting opportunities to fulfill the unmet needs of therapeutic *** developments in nanoelectronics and soft and biocompatible materials have shown potential applicability to clinical practices,including physiological sensing,drug delivery,cardiovascular monitoring,and brain *** date,most bioelectronic devices require wired connections for electrical control,making their implantation complicated and inconvenient for *** an alternative,wireless technology is proliferating to create bioelectronics that offer noninvasive control,biotelemetry,and wireless power transfer(WPT).This review paper provides a comprehensive overview of wireless bioelectronics and ongoing developments in their applications for organ-specific treatments,including disorders and *** main emphasis is on delineating the key features of antennas,namely their radiation characteristics,materials,integration with rest of the electronics,and experimental *** the recent progress in wireless mediated bioelectronics is expected to enhance the control of its functionalities,there are still numerous challenges that need to be addressed for commercialization,as well as to address everexpanding and evolving future therapeutic targets.

关键词： Bioelectronics Neural implants Drug delivery Antennas Wireless power

Fault detection and accommodation via neural network and variable structure control

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控制理论与应用（英文版） 2007年第3期5卷 253-260页

作者： hao yang Bin JIANG College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing Jiangsu 210016 China LAGIS-CNRS UMR 8146 Université des Sciences et Technologies de Lille Villeneuve d＇Ascq cedex 59655 France

This paper proposes a novel idea that classifies faults into two different kinds： serious faults and small faults, and treats them with different strategies respectively. A kind of artificial neural network （ANN） is proposed for detecting serious faults, and variable structure （VS） model-following control is constructed for accommodating small faults. The proposed framework takes both advantages of qualitative way and quantitative way of fault detection and accommodation. Moreover, the uncertainty case is investigated and the VS controller is modified. Simulation results of a remotely piloted aircraft with control actuator failures illustrate the performance of the developed algorithm.

关键词： Fault detection Fault accommodation Neural network Variable structure control

3D Product Display Based on Inventor Animation Design

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Instrumentation 2020年第1期7卷 33-41页

作者： CHEN Hua yang hao yang Guanghui School of Mechanical Engineering University of Science and Technology BeijingBeijing 100083

With the rapid development of internet technology,some innovative fashion product are increasingly showed in the way of three-dimensional virtual *** fashion jewelry as an example,the virtual 3D display method of product is studied by Inventor which is parametric 3D design software for efficient modeling and animation developed by the Autodesk *** discussing the methods of part feature creation and assembly design,the real simulation of the product is carried ***-dimensional animation techniques,such as fade animation,components animation and camera animation are used to depict product features and animation effects.

关键词： 3D Product Display Inventor Animation Design 3D Modeling

Evaluation method for helicopter maritime search and rescue response plan with uncertainty

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Chinese Journal of Aeronautics 2021年第4期34卷 493-507页

作者： Hu LIU Zikun CHEN Yongliang TIAN Bin WANG hao yang Guanghui WU School of Aeronautic Science and Engineering Beihang UniversityBeijing 100083China Donghai No.2 Flying Service of Ministry of Transport Xiamen 361006China Commercial Aircraft Corporation of China Ltd Shanghai 200210China

Helicopter plays an increasingly significant role in Maritime Search and Rescue(MSAR),and it will perform MSAR mission based on response plans when an accident *** the rationality of response plan determines the success of MSAR mission to a large ***,with the impact of many uncertainty factors,it is difficult to evaluate response plans comprehensively before performing *** at these problems,an evaluation framework of helicopter MSAR response plan named UMAD is proposed in this paper,which reveals the influence mechanism of uncertainty factors based on Multi-Agent method and analyzes the mission flow based on Discrete Event System(DEVS)***,the evaluation criterion and indicators of response plan are extracted from the aspects of safety and ***,the Monte Carlo method is adapted to calculate the probability distribution and robustness of response plan comprehensive ***,in order to illustrate the validity of this method,it is discussed and verified by an application example of evaluating multiple response plans to the same MSAR *** results show that this method can analyze the influence of uncertainty more systematically and optimize response plans more comprehensively.

关键词： Evaluation method Maritime search and rescue Probability distribution Response plan Robustness Uncertainty factors

Helicopter maritime search area planning based on a minimum bounding rectangle and K-means clustering

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Chinese Journal of Aeronautics 2021年第2期34卷 554-562页

作者： Peisen XIONG Hu LIUa Yongliang TIAN Zikun CHEN Bin WANG hao yang School of Aeronautic Science and Engineering Beihang UniversityBeijing 100083China Dong Hai No.2 Rescue Flying Service of The Ministry of Transport Xiamen 361006China

Helicopters are widely used in maritime Search and Rescue(SAR) missions. To ensure the success of SAR missions, search areas need to be carefully planned. With the development of computer technology and weather forecast technology, the survivors’ drift trajectories can be predicted more precisely, which strongly supports the planning of search areas for the rescue helicopter. However, the methods used to determine the search area based on the predicted drift trajectories are mainly derived from the continuous expansion of the area with the highest Probability of Containment(POC), which may lead to local optimal solutions and a decrease in the Probability of Success(POS), especially when there are several subareas with a high POC. To address this problem, this paper proposes a method based on a Minimum Bounding Rectangle and Kmeans clustering(MBRK). A silhouette coefficient is adopted to analyze the distribution of the survivors’ probable locations, which are divided into multiple clusters with K-means clustering. Then,probability maps are generated based on the minimum bounding rectangle of each cluster. By adding or subtracting one row or column of cells or shifting the planned search area, 12 search methods are used to generate the optimal search area starting from the cell with the highest POC in each probability map. Taking a real case as an example, the simulation experiment results show that the POS values obtained by the MBRK method are higher than those obtained by other methods,which proves that the MBRK method can effectively support the planning of search areas and that K-means clustering improves the POS of search plans.

关键词： K-means clustering Minimum bounding rectangle Mission planning Probability map Search and rescue

Powder metallurgical 3D nickel current collectors with plasma-induced Ni3N nanocoatings enabling long-life and dendrite-free lithium metal anode

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Journal of Energy Chemistry 2022年第9期31卷 149-157,I0005页

作者： Piao Qing Zhibin Wu Yuejiao Chen Fengcheng Tang hao yang Libao Chen State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083HunanChina

Building three-dimensional(3D) current collectors is a promising strategy to surmount the bottlenecks of lithium metal anodes(LMAs), but the regulation methodology of a 3D current collector has seldom been considered comprehensively concerning both skeleton architectures and surface coatings. Herein, a robust porous 3D nickel skeleton(NS) with lithiophilic NiN nanocoatings(NiN@NS) is synthesized via an integrative route of powder metallurgy/plasma-enhanced nitridation technics. The facile powder metallurgical method facilitates the adjustment of NS architectures toward sufficient electrolyte adsorption and even current density distribution, while the followed plasma-enhanced chemical vapor deposition(PECVD) method can induce compact NiN nanocoatings on NS, which reduces the Li nucleation overpotential, accelerates the Li-ion transfer, and facilitates a highly reversible oriented texture of Li deposition morphology owing to the dense and homogenous deposition of Li into the pores. The optimized NiN@NS current collector shows a high averaged Coulombic efficiency(CE) of 98.8% over 350cycles, a prolonged lifespan of 1000 h(at 2 mA cm^(-2)) in symmetrical cells, together with the significant performance in full cells. The ingenious methodology reported in this work can also be broadly applicable for the controllable production of other 3D skeletons with nitride nanocoatings for various applications.

关键词： 3D current collector Ni3N Lithium metal anode Plasma Powder metallurgy

Quantum coherence and correlation dynamics of two-qubit system in spin bath environment

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Chinese Physics B 2020年第4期29卷 154-159页

作者： hao yang Li-Guo Qin Li-Jun Tian Hong-yang Ma Department of Physics Shanghai UniversityShanghai 200444China School of Mathematics Physics and StatisticsShanghai University of Engineering ScienceShanghai 201620China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China School of Science Qingdao University of TechnologyQingdao 266000China

The quantum entanglement,discord,and coherence dynamics of two spins in the model of a spin coupled to a spin bath through an intermediate spin are *** effects of the important physical parameters including the coupling strength of two spins,the interaction strength between the intermediate spin and the spin bath,the number of bath spins and the temperature of the system on quantum coherence and correlation dynamics are discussed in different *** frozen quantum discord can be observed whereas coherence does not when the initial state is the Bell-diagonal *** finite temperature,we find that coherence is more robust than quantum discord,which is better than entanglement,in terms of resisting the influence of ***,quantum coherence is more tenacious than quantum correlation as an important resource.

关键词： quantum coherence quantum correlation spin bath