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Sequential Experiment Design Method Based on Uniformity and Distortion of Responses

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Acta Mathematicae Applicatae Sinica 2023年第3期39卷 778-790页

作者： qian-yi HUANG liang-wei qi jing-ke ZHANG Yu TANG State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System(CEMEE) Luoyang 471003China School of Mathematical Sciences Soochow UniversitySuzhou 215006China

With the development of modern electronic countermeasure technology,the fight between radar jamming and anti-jamming in aviation military has become increasingly *** are some special requirements for radar countermeasure *** example,such experiments are often divided into several stages,and responses of the previous stages will become factors of the next ***,the experiment design can only consider some typical level values of the ***,the experiment factors are mostly continuous *** when there are some jumps in the response,and the value granularity of the factor level is large,the responses fail to reflect the distortion process,which makes it difficult to explore the radar performance ***,it is necessary to study the sequential experiment design method with the optimization goals of response uniformization and response distortion process *** this paper,a sequential experiment design strategy based on Kriging model is ***,Kriging model is used to fit the initial experimental data to obtain the response *** order to enhance the uniformity of response distribution,Shannon entropy is applied to the objective function as the measure of *** for the situation of response distortion,we consider replacing the existing experiment points with those whose corresponding responses have a larger gradient *** means that the response value near these points will change rapidly,so they are more valuable for *** we use the peak surface in the three-dimensional space to intuitively verify the effect of the above algorithms on response uniformization and response distortion process characterization,and use the simulated annealing algorithm to solve *** simulation results show that our sequential experiment strategy has a good ***,we apply the strategy to the practical problem of radar countermeasure experiment,and the obtained results

关键词： radar countermeasure experiments response distortion sequential experiment uniform distribution

Wettability control in electrocatalyst: A mini review

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Journal of Energy Chemistry 2022年第7期31卷 643-655,I0016页

作者： Yan liang Yifeng Han jing-sha Li Jun Wang Depei Liu qi Fan Key Laboratory of Solar Energy Science and Technology in Jiangsu Province Southeast UniversityNanjing 210096JiangsuChina National Laboratory of Solid State Microstructures Jiangsu Key Laboratory for Nano TechnologySchool of PhysicsNanjing UniversityNanjing 210093JiangsuChina Power China Huadong Engineering Corporation Limited Hangzhou 311122ZhejiangChina Institute of Materials Science and Devices School of Materials Science and EngineeringSuzhou University of Science and TechnologySuzhou 215011JiangsuChina

Electrocatalysis, as a typical heterogeneous catalysis, generally occurs in the di-or tri-phase *** is an important property for describing the balance of a gas-liquid-solid system. Therefore,the wettability of reaction interface, especially hydrophilicity/hydrophobicity, plays an important role in the adsorption/desorption process of gas bubbles on the surface of the solid electrode. Herein, we present a comprehensive review of the wettability control of the electrode materials applied in electrocatalysis reactions, including hydrogen evolution reaction(HER), oxygen evolution reaction(OER), oxygen reduction reaction(ORR) and carbon dioxide reduction reaction(CO_(2) RR). Firstly, the basic theories of wettability as well as the impact on electrocatalysis were introduced in this review. Secondly, the overview of modifying methods of the wettability from electrocatalyst microstructure(structural modification, surface coating, introducing hydrophilic groups) and system design(electrode, device) were suggested. At last, the deficiencies and problems in the application of wettability control are discussed,and deeper and broader application prospects are proposed.

关键词： Electrocatalysis Reaction interfaces Wettability Gas evolution reactions Gas consumption reactions

The formation and evolution of massive galaxies

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Research in Astronomy and Astrophysics 2021年第9期21卷 53-62页

作者： Ying-Jie jing Yu Rong Jie Wang qi Guo liang Gao Key Laboratory for Computational Astrophysics National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Instituto de Astrofísica Pontificia Universidad Católica de ChileAv.Vicuña Mackenna 4860MaculSantiagoChile Institute of Computational Cosmology Department of PhysicsUniversity of DurhamScience LaboratoriesSouth RoadDurham DH13LEUK FONDECYT

The discovery of massive galaxies at high redshifts,especially the passive ones,poses a big challenge for the current standard galaxy formation *** we use the semi-analytic galaxy formation model developed by Henriques et *** explore the formation and evolution of massive galaxies(MGs,stellar-mass M*>1011 M⊙).Different from previous works,we focus on the ones just formed(*** reach?1011 M⊙).We find that most of the MGs are formed around z=0.6,with the earliest formation at z>***,although most of the MGs in the local Universe are passive,we find that only 13%of the MGs are quenched at the formation *** of the quenched MGs at formation already host a very massive supermassive black hole(SMBH)which could power the very effective AGN *** the star-forming MGs,the ones with more massive SMBH prefer to quench in shorter timescales;in particular,those with MSMBH>107.5 M⊙have a quenching timescale of~0.5 Gyr and the characteristic MSMBH depends on the chosen stellar mass threshold in the definition of MGs as a result of their *** also find that the"in-situ"star formation dominates the stellar mass growth of MGs until they are *** the whole redshift range,we find the quiescent MGs prefer to stay in more massive dark matter halos,and have more massive SMBH and less cold gas *** results provide a new angle on the whole life of the growth of MGs in the Universe.

关键词： galaxies:evolution galaxies:formation galaxies:star formation galaxies:high-redshift methods:numerical

基于ITS2序列的竹叶花椒及其近缘种药材鉴别

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中国现代中药 2021年第5期23卷 786-791,814页

作者：齐景梁高必兴苟琰耿昭卿艳周娟姜卫东四川省药品检验研究院/国家药品监督管理局中成药质量评价重点实验室四川成都611731 成都中医药大学四川成都611137

目的:通过分析竹叶花椒及其近缘种药材的核糖体DNA内转录间隔区2(ITS2)条形码序列,探讨DNA条形码技术鉴别竹叶花椒及其近缘种药材的可行性。方法:对样品进行DNA提取、扩增、测序,并从GenBank数据库下载ITS2序列,共获得竹叶花椒及其近缘... 详细信息

目的:通过分析竹叶花椒及其近缘种药材的核糖体DNA内转录间隔区2(ITS2)条形码序列,探讨DNA条形码技术鉴别竹叶花椒及其近缘种药材的可行性。方法:对样品进行DNA提取、扩增、测序,并从GenBank数据库下载ITS2序列,共获得竹叶花椒及其近缘种药材ITS2序列43条,基于Basic Local Alignment Search Tool(BLAST)法、临接法(NJ)、Kimura 2-parameter(K2P)遗传距离和ITS2序列二级结构进行鉴定分析。结果:BLAST结果与性状鉴定结果一致;竹叶花椒种内平均K2P遗传距离小于其与花椒、青花椒、野花椒的种间平均K2P遗传距离;NJ系统聚类树和ITS2二级结构可直观地区分竹叶花椒及其近缘种。结论:应用ITS2条形码可以有效地鉴别竹叶花椒及其近缘种药材。

关键词：竹叶花椒内转录间隔区2 DNA条形码中药鉴定

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去亚甲基小檗碱的药理作用研究进展

中国药理学通报 2025年第1期41卷 7-12页

作者：李靖琪张琪陈雨桐仝永斌鲁澄宇广东医科大学药学院广东东莞523808

去亚甲基小檗碱(demethyleneberberine,DMB)是小檗碱在体内的主要代谢产物之一,其具有广泛的药理特性。大量研究表明其具有改善感染、抗炎、抗纤维化、抑制癌细胞、调节血脂等多种生物活性,而且在神经退行性疾病治疗领域有巨大潜力。该... 详细信息

去亚甲基小檗碱(demethyleneberberine,DMB)是小檗碱在体内的主要代谢产物之一,其具有广泛的药理特性。大量研究表明其具有改善感染、抗炎、抗纤维化、抑制癌细胞、调节血脂等多种生物活性,而且在神经退行性疾病治疗领域有巨大潜力。该文通过对DMB药理作用及其机制进行系统概述,以期为深入理解其药理作用及合理开发提供科学依据。

关键词：去亚甲基小檗碱药理作用抗感染抗炎肝保护神经保护

Mesh-supported V2O5-WO3/TiO2 nanosheet array catalysts for efficient removal of NOx

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Tungsten 2025年第1期 100-111页

作者： Zhi-qi Zhang Liu Yang Wen Luo Vladimir An jing Li Bao-Dan Liu School of Materials Science and Engineering Northeastern University Foshan Graduate School of Innovation Northeastern University Kizhner Research Center School of Advanced Manufacturing Technologies Tomsk Polytechnic University

The design and synthesis of vanadium-based denitration catalysts with low-temperature activity pose significant challenges in the field of toxic gas *** this study,we have developed a novel approach to fabricate highly efficient V2O5-WO3/TiO2monolithic mesh catalysts for NOxreduction at low ***,TiO2nanosheets with strong adhesion and large surface area were grown on Ti mesh using plasma electrolytic oxidation technology and hydrothermal ***,super-small traces of WO3and V2O5active nano-species were subsequently deposited on TiO2nanosheets using the deposition-precipitation *** to traditional ceramic-based V2O5-WO3/TiO2catalysts,our V2O5-WO3/TiO2monolithic mesh catalyst exhibits superior mechanical performance,excellent thermal conductivity,lower pressure drop,higher utilization of active components,and stronger synergistic ***,the V2O5-WO3/TiO2monolithic mesh catalysts exhibited excellent low-temperature catalytic activity with 98% of NOxconversion at 220℃,and remarkable long-term SO2tolerance and water resistance in the selective catalytic reduction（SCR） of NOxwith *** SCR reaction of tiny V2O5and WO3active species supported on TiO2nanosheets directly demonstrated to follow the Eley-Rideal mechanism by in situ infrared spectra.

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Effects of Substrate Crystallographic Orientations on Microstructure in Laser Surface-Melted Single-Crystal Superalloy:Theoretical Analysis

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Acta Metallurgica Sinica(English Letters) 2016年第8期29卷 763-773页

作者： Guo-Wei Wang jing-jing liang Yi-Zhou Zhou Tao Jin Xiao-Feng Sun Zhuang-qi Hu Institute of Metal Research Chinese Academy of Sciences School of Materials Science and Engineering University of Science and Technology of China

A geometric analysis technique for crystal growth and microstructure development in single-crystal welds had been previously *** the effect of welding conditions on the tendency of stray grains formation during solidification was *** the present work,these analytical methods were further *** with an original vectorization method,a 3D Rosenthal solution was used to determine thermal conditions of the ***,the dendrite growth orientation,the dendrite growth velocity and the thermal gradient along dendrite direction were calculated and lively ***,the tendency of stray grains formation in the solidification front was forecasted and its distribution was presented with a 3D *** results indicate that substrate orientation has some impacts on the crystal growth pattern,dendrite growth velocity,distribution of thermal gradient and stray *** on the research methods proposed in this work,any substrate crystallographic orientation can be studied,and predicted stray grains distribution can be visualized.

关键词： Single crystal Laser surface remelting Weld repair Modeling Stray grains distribution

Correlating the Interfacial Polar-Phase Structure to the Local Chemistry in Ferroelectric Polymer Nanocomposites by Combined Scanning Probe Microscopy

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Nano-Micro Letters 2023年第1期15卷 80-93页

作者： Jiajie liang Shaojie Wang Zhen Luo jing Fu Jun Hu Jinliang He qi Li State Key Laboratory of Power System Department of Electrical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China

Ferroelectric polymer nanocomposites possess exceptional electric properties with respect to the two otherwise uniform phases,which is commonly attributed to the critical role of the matrix-particle interfacial ***,the structure-property correlation of the interface remains unestablished,and thus,the design of ferroelectric polymer nanocompos-ite has largely relied on the trial-and-error ***,a strategy that combines multi-mode scanning probe microscopy-based electrical charac-terization and nano-infrared spectroscopy is developed to unveil the local structure-property correlation of the interface in ferroelectric polymer *** results show that the type of surface modifiers decorated on the nanoparticles can significantly influence the local polar-phase content and the piezoelectric effect of the polymer matrix surrounding the *** strongly coupled polar-phase content and piezoelectric effect measured directly in the interfacial region as well as the computed bonding energy suggest that the property enhancement originates from the formation of hydrogen bond between the surface modifiers and the ferroelectric *** is also directly detected that the local domain size of the ferroelectric polymer can impact the energy level and distribution of charge traps in the interfacial region and eventually influence the local dielectric strength.

关键词： Interfaces Ferroelectric polymers Nanocomposites Scanning probe microscopy Nano-infrared spectroscopy

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中药材商品溯源编码初探

中药与临床 2012年第4期3卷 4-6页

作者：李敏卢道会赵文吉吴发明齐景梁成都中医药大学药学院中药材标准化教育部重点实验室中药资源系统研究与开发利用省部共建国家重点实验室培育基地四川成都610075

目的:结合中药材商品的市场情况,制定中药材商品溯源编码为实践,为中药材商品来源追溯及质量控制提供依据,促进中药产业的发展。方法:以中药材商品分类标准为基础和依据,对《中华人民共和国药典》、部颁标准及全国各个地区的地方标准所... 详细信息

目的:结合中药材商品的市场情况,制定中药材商品溯源编码为实践,为中药材商品来源追溯及质量控制提供依据,促进中药产业的发展。方法:以中药材商品分类标准为基础和依据,对《中华人民共和国药典》、部颁标准及全国各个地区的地方标准所收载的中药材品种进行了统计,再结合中药材市场的实际销售情况,编制中药材商品的溯源编码。结果与结论:对前期研究中制定出的中药材商品分类标准草案进行了进一步的研究和完善,首次确定了中药材商品溯源编码的规则及可行性,编制了800余种中药材、两千余个等级规格的中药材商品溯源编码。

关键词：中药材商品分类溯源编码