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A novel approximation of basic probability assignment based on rank-level fusion

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Chinese Journal of Aeronautics 2013年第4期26卷 993-999页

作者： Yang Yi han Deqiang han Chongzhao Cao Feng State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Xi'an Jiaotong University Institute of Integrated Automation MOE KLINNS Lab School of Electronic and Information Engineering Xi'an Jiaotong University School of Energy and Power Engineering Xi'an Jiaotong University

Belief functions theory is an important tool in the field of information fusion. However, when the cardinality of the frame of discernment becomes large, the high computational cost of evidence combination will become the bottleneck of belief functions theory in real applications. The basic probability assignment （BPA） approximations, which can reduce the complexity of the BPAs, are always used to reduce the computational cost of evidence combination. In this paper, both the cardinalities and the mass assignment values of focal elements are used as the criteria of reduction. The two criteria are jointly used by using rank-level fusion. Some experiments and related analyses are provided to illustrate and justify the proposed new BPA approximation approach.

关键词： Belief approximation Distance of evidence Evidence combination Information fusion Rank-level fusion

Effect of Yb_2O_3 doping on the grain boundary of NiFe_2O_4–10NiO-based cermets after sintering

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International Journal of Minerals,Metallurgy and Materials 2015年第12期22卷 1334-1341页

作者： han-bing He School of Metallurgy and Environment Central South University Department of Metallurgical Engineering University of Utah

xYb2O3-15（20Ni-Cu）/（85 -x）（NiFe2O4-10NiO）（x = 0, 0.25, 0.5, 0.75, 1.0, 2.0, and 10.0） cermets for aluminum electrolysis were prepared to investigate the effect ofYb2O3 doping on the grain boundary of the cermets after sintering. The results showed that each interface was very clear and that with increasing Yb2O3 content, most of the Yb was evenly distributed at the grain boundary. Moreover, according to the phase composition and microstructural analysis by X-ray diffraction （XRD）, scanning electron microscopy with energy dispersive X-ray spectroscopy （SEM/EDX）, and electron probe microanalysis （EPMA）, YbFeO3 was produced along the grain boundary. The YbFeO3 was concluded to not only have formed from the interaction between the NiFe2O4 or Fe2O3 component and Yb2O3 at the grain boundary of the cermets, but also from the decomposition of NiFe2O4 into NiO and Fe2O3 and the subsequent reaction of Fe2O3 with Yb2O3. Thus, the production of YbFeO3 resulted in a cermet with high relative density, good electrical conductivity, and good corrosion resistance.

关键词： cermets ytterbium oxide doping grain boundaries aluminum electrolysis

Design of a widely adjustable electrochromic device based on the reversible metal electrodeposition of Ag nanocylinders

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Nano Research 2023年第1期16卷 1421-1429页

作者： Jiangrong Zhou Yuge han MIIT Key Laboratory of Thermal Control of Electronic Equipment School of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing 210094China

Structural colors resulting from nanostructured metallic surfaces hold a series of advantages compared to conventional chemical pigments and dyes,such as enhanced durability,tunability,scalability,and low consumption,making them particularly promising for preparing color-tunable ***,once these structures are fabricated,they are almost all passive devices with static nanostructures and fixed optical properties,limiting their potential ***,by using a specially designed array of ordered SiO2 nanoholes as a deposition template in conjunction with the traditional reversible metal electrodeposition device(RMED),we propose a tunable reflective surface where the color of the surface can be changed as a function of the thickness of the deposited Ag nanoparticles(AgNPs).Simplified manufacturability and a large range of color tunability are achieved over previous reports by utilizing the SiO2 nanohole template,which allows the direct deposition of AgNPs while forming an array structure of Ag ***,a further thematic analysis of the physical mechanism in the proposed structure is *** results show that the structural colors induced by the longitudinal localized surface plasmon resonance(LSPR)mode can be dynamically tuned from brown to purple via increasing the deposition ***,in combination with SiO2 nanohole templates of varying parameters,a full gamut of colors spanning the entire visible spectrum is achieved,revealing the feasibility of utilizing the properties of the LSPR mode for satisfying various color *** believe that this LSPRbased multicolor RMED design will contribute to the development of full color information displays and light-modulating devices.

关键词： structural color dynamic color tunability nanocylinder plasmonic nanostructures

Multicomponent transition metal oxides and(oxy)hydroxides for oxygen evolution

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Nano Research 2023年第2期16卷 1913-1966页

作者： Jingyi han Jingqi Guan Institute of Physical Chemistry College of ChemistryJilin UniversityChangchun 130021China

Oxygen evolution reaction(OER)is the core electrode reaction in energy-related technologies,such as electrolytic water,electrocatalytic carbon dioxide reduction,rechargeable metal-air batteries,and renewable fuel *** of well-stocked,cost-effective,and high-performance OER electrocatalysts is the key to the improvement of energy efficiency and the large-scale commercial implementation of these *** transition metal oxides and(oxy)hydroxides are the most promising OER catalysts due to their low cost,adjustable structure,high electrocatalytic activity,and outstanding *** this review,a brief overview about the mechanisms of OER is first offered,accompanied with the theory and calculation ***,the latest advances in the rational design of the related OER electrocatalysts and the modulation of the electronic structure of active sites are comprehensively ***,various strategies(including element doping,defect engineering,and fabrication of binderless catalysts)used to improve the OER performance are detailedly discussed,emphasizing the structure–function ***,the challenges and perspectives on this promising field are proposed.

关键词： oxyhydroxide mixed oxide oxygen evolution reaction single-atom catalyst water splitting

Time Synchronized Velocity Error for Trajectory Compression

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Computer Modeling in Engineering & Sciences 2022年第2期130卷 1193-1219页

作者： Haibao Jiang Dezhi han han Liu Jiuzhang han Wenjing Nie College of Information Engineering ShanghaiMaritime UniversityShanghai201306China College of Foreign Language ShanghaiMaritime UniversityShanghai201306China

Nowadays,distance is usually used to evaluate the error of trajectory *** methods can effectively indicate the level of geometric similarity between the compressed and the raw trajectory,but it ignores the velocity error in the *** fill the gap of these methods,assuming the velocity changes linearly,a mathematical model called SVE(Time Synchronized Velocity Error)for evaluating compression error is designed,which can evaluate the velocity error effectively,conveniently and *** on this model,an innovative algorithm called SW-MSVE(Minimum Time Synchronized Velocity Error Based on Sliding Window)is proposed,which can minimize the velocity error in trajectory compression under the premise of local *** elaborate experiments are designed to demonstrate the advancements of the SVE and the SW-MSVE *** the first experiment,we use the PED,the SED and the SVE to evaluate the error under four compression algorithms,one of which is the SW-MSVE *** results show that the SVE is less influenced by noise with stronger performance and more *** the second experiment,by marking the raw trajectory,we compare the SW-MSVE algorithm with three others algorithms at information *** results show that the SW-MSVE algorithm can take into account both velocity and geometric structure constraints and retains more information of the raw trajectory at the same compression ratio.

关键词： Trajectory compression error evaluation trajectory data time synchronization velocity compression ratio

PD-1 inhibitors provide new opportunities in conversion therapy for stage IV gastric cancer

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Cancer Biology & Medicine 2022年第5期19卷 565-568页

作者： han Liang Gastric Cancer Center Tianjin Medical University Cancer Institute&HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjinTianjin’s Clinical Research Center for CancerTianjin 300060China

Gastric cancer is one of the most common malignant tumors *** is a large country in which gastric cancer ranks among the top 3 malignant tumors in terms of incidence,and related morbidity and *** the past 20 years,China has made the most outstanding achievements in the diagnosis and treatment of gastric cancer among countries *** overall 5-year survival rate of patients in China has increased by nearly 10%***,early gastric cancer accounts for only 20%of clinically confirmed cases,the overall effects of therapies for gastric cancer still must be *** REGATTA study has confirmed that palliative surgery cannot improve the long-term survival of patients with stage IV gastric cancer4.

关键词： gastric cancer Gastric

Three-Dimensional Scene Encryption Algorithm Based on Phase Iteration Algorithm of the Angular-Spectral Domain

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IEEE/CAA Journal of Automatica Sinica 2020年第4期7卷 1074-1080页

作者： Chao han Yuzhen Shen the School of Electrical Engineering Anhui Polytechnic Universityand also with the Key Laboratory of Advanced Perception and Intelligent Control of High-end EquipmentMinistry of EducationWuhu 241000China

In order to increase the capacity of encrypted information and reduce the loss of information transmission, a three-dimensional(3 D) scene encryption algorithm based on the phase iteration of the angular spectrum domain is proposed in this paper. The algorithm, which adopts the layer-oriented method, generates the computer generated hologram by encoding the three-dimensional scene. Then the computer generated hologram is encoded into three pure phase functions by adopting the phase iterative algorithm based on angular spectrum domain,and the encryption process is completed. The three-dimensional scene encryption can improve the capacity of the information,and the three-phase iterative algorithm can guarantee the security of the encryption information. The numerical simulation results show that the algorithm proposed in this paper realized the encryption and decryption of three-dimensional scenes. At the same time, it can ensure the safety of the encrypted information and increase the capacity of the encrypted information.

关键词： Angular spectrum diffraction information capacity phase iteration three-dimensional scene encryption

A review of the microseismic focal mechanism research

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Science China Earth Sciences 2021年第3期64卷 351-363页

作者： han LI Xu ChanG Key Laboratory of Petroleum Resource Research Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China

Reservoir reconstructions implemented in unconventional oil and gas exploration usually adopt hydraulic fracturing techniques to inject high-pressure fluid into the reservoir and change its pore-fracture connection structure to enhance *** fracturing changes the reservoir stress and causes the rocks to crack,thus generating microseismic *** important component of microseismic research is the source mechanism *** the research on the microseismic focal mechanism,information on the source mechanisms and in-situ stress status variations can be quantitatively revealed to effectively optimize the reservoir reconstruction design for increasing *** paper reviews the recent progress in hydraulic fracturing induced microseismic focal mechanism *** summarize their main principles and provide a detailed introduction of the research advances in source modeling,microseismic data synthesis,and focal mechanism *** also discuss the challenges and limitations in the current microseismic focal mechanism research and propose prospects for future research ideas and directions.

关键词： Unconventional oil and gas Microseismic monitoring Microseismic events Focal mechanism research

High performance steels:Initiative and practice

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Science China(Technological Sciences) 2012年第7期55卷 1774-1790页

作者： DONG han Central Iron&Steel Research Institute Beijing 100081China

In order to meet the progressive requirement for the performance improvement of steel,the author proposed a novel microstructure featured with multi-phase,meta-stable and multi-scale(so-called as M 3).And then,the new technologies could be developed to process three prototype steels with high performance:the third generation high strength low alloy(HSLA) steels with improved toughness and/or ductility(AKV(40℃)≥200 J and/or A≥20% when Rp0.2 in 800-1000 MPa),the third generation advanced high strength steels(AHSS)(Rm×A≥30 GPa% when Rm from 1000 MPa to 1500 MPa) for automobiles with improved ductility and low cost,and heat resistant martensitic steels with improved creep strength(10000650≥90 MPa).It can be expected that the new technology developed will remarkably improve the safety and reliability of steel products in service for infrastructures,automobiles and fossil power station in the future.

关键词： high performance steels M 3 microstructure evolution phenomenon and mechanisms processing