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国际中文教育促进地方文化国际传播研究——以邯郸文化为例

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河北工程大学学报（社会科学版） 2024年第2期41卷 90-95页

作者：刘宏伟刘熠琳河北工程大学文法学院河北邯郸056038 山西大学文学院山西太原030006

中华文化的国际传播不仅限于聚焦宏大的国家层面,还要推进中国故事和中国声音的全球化表达、区域化表达、分众化表达。该研究聚焦邯郸十大文化脉系这一文化教学资源,立足来邯留学生的中文课堂教学,使来邯留学生在任务环和阶梯式教学中... 详细信息

中华文化的国际传播不仅限于聚焦宏大的国家层面,还要推进中国故事和中国声音的全球化表达、区域化表达、分众化表达。该研究聚焦邯郸十大文化脉系这一文化教学资源,立足来邯留学生的中文课堂教学,使来邯留学生在任务环和阶梯式教学中具身感知邯郸文化并实现跨文化共情,从而形成兼具地方特色与国际视野的中华文化国际传播路径。研究表明,以国际中文课堂搭建地方文化国际传播平台,以地方文化教学活动和来华留学生的“他者”叙事传播地方文化,是讲好中国故事、向世界阐释和推介中国文化的积极探索。

关键词：邯郸十大文化脉系国际传播来华留学生国际中文教学

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微生物胞外聚合物引起的金属腐蚀的研究进展

中国腐蚀与防护学报 2024年第2期44卷 278-294页

作者：柯楠倪莹莹何嘉淇柳海宪金正宇刘宏伟中山大学化学工程与技术学院南方海洋科学与工程广东省实验室(珠海) 珠海519082

系统总结了典型的腐蚀性微生物(细菌、真菌和微藻)的代谢特点以及典型微生物对金属腐蚀的作用机制,在此基础上着重分析了微生物代谢产生的关键组分胞外聚合物的组分结构和功能,讨论了胞外聚合物的多种用途。最后,分析和讨论了胞外聚合... 详细信息

系统总结了典型的腐蚀性微生物(细菌、真菌和微藻)的代谢特点以及典型微生物对金属腐蚀的作用机制,在此基础上着重分析了微生物代谢产生的关键组分胞外聚合物的组分结构和功能,讨论了胞外聚合物的多种用途。最后,分析和讨论了胞外聚合物在金属腐蚀过程中的促进和抑制作用以及反应机理,为后续微生物胞外聚合物导致的金属材料腐蚀与防护提供参考。

关键词：微生物腐蚀胞外聚合物细菌真菌微藻

Robust radar automatic target recognition algorithm based on HRRP signature

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Frontiers of Electrical and Electronic Engineering in China 2012年第1期7卷 49-55页

作者： hongwei liu Feng CHEN Lan DU Zheng BAO National Laboratory of Radar Signal Processing Xidian UniversityXi'an 710071China

Automatic target recognition （ATR） is an important function for modern radar. High resolution range profile （HRRP） of target contains target struc- ture signatures, such as target size, scatterer distribu- tion, etc, which is a promising signature for ATR. Sta- tistical modeling of target HRRPs is the key stage for HRRP statistical recognition, including model selection and parameter estimation. For statistical recognition al- gorithms, it is generally assumed that the test samples follow the same distribution model as that of the train- ing data. Since the signal-to-noise ratio （SNR） of the received HRRP is a function of target distance, the as- sumption may be not met in practice. In this paper, we present a robust method for HRRP statistical recogni- tion when SNR of test HRRP is lower than that of train- ing samples. The noise is assumed independent Gaus- sian distributed, while HRRP is modeled by probabilistic principal component analysis （PPCA） model. Simulated experiments based on measured data show the effective- ness of the proposed method.

关键词： radar target recognition high resolution range profile （HRRP） probabilistic principal component analysis （PPCA）

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光致动态可调太赫兹超材料吸收器

Journal of Southeast University(English Edition) 2024年第2期40卷 148-154页

作者：刘宏微陈庆超孙美琪吕俊鹏南京师范大学物理科学与技术学院南京210023 东南大学物理学院南京211189

设计了一种具有偏振不敏感和广角吸收的光激发可切换单/双波段太赫兹超材料吸收器.通过调制嵌入谐振器中的光敏砷化镓的电导率实现功能切换,并提取不同砷化镓电导率下的表面电流,对超材料吸收器的吸收机理进行了物理解释.结果表明,该吸... 详细信息

设计了一种具有偏振不敏感和广角吸收的光激发可切换单/双波段太赫兹超材料吸收器.通过调制嵌入谐振器中的光敏砷化镓的电导率实现功能切换,并提取不同砷化镓电导率下的表面电流,对超材料吸收器的吸收机理进行了物理解释.结果表明,该吸收器可以实现从0.568和1.442 THz的双波段吸收(吸收率为99.08%和99.56%)到0.731 THz的单波段吸收(吸收率为95.43%)的切换.该器件强度调制深度为61.4%,频率调谐带宽为60.6%,可制作太赫兹频段的强度调制器和频率选择吸收器.此外,所提出的吸收器对横电(TE)和横磁(TM)偏振波都具有与偏振无关的广角吸收.可调谐超材料吸收器的实现为成熟的半导体技术以及有源太赫兹调制器和开关的潜在应用提供了机会.

关键词：太赫兹超材料吸收器光激发动态可调

A method of waveform design based on mutual information

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Frontiers of Electrical and Electronic Engineering in China 2009年第2期4卷 134-140页

作者： Bo JIU hongwei liu Liya LI Shunjun WU National Laboratory of Radar Signal Processing Xidian UniversityXi’an 710071China

A novel method called the general waterfilling,which is suitable when clutter is not negligible,is proposed to solve the waveform design problem of broadband radar for the recognition of multiple extended targets.The uncertainty of the target’s radar signatures is decreased via maximizing the mutual information between a random extended target and the received signal.Then,the general water-filling method is employed to the waveform design problem for multiple extended targets identification to increase the separability of multiple targets.Experimental results evaluated the efficiency of the proposed method.Compared to chirp signal and water-filling signal,our method improves the classification rates and even performs better at low signal-to-interference-plus-noise ratio(SINR).

关键词： waveform design broadband radar mutual information target recognition

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基于阿贝原则的机床主轴误差测量研究

工具技术 2024年第6期58卷 150-152页

作者：杨锐刘宏伟王新科襄阳职业技术学院湖北文理学院机械工程学院

机床测量是误差补偿的前提,分析主轴箱移动时产生的阿贝误差原因,给出主轴箱沿Z轴移动时X方向和Y方向的直线度误差,根据主轴箱直线度误差数据进行建模并给予补偿,结合具体的工程实例验证了阿贝误差补偿的有效性。

关键词：阿贝误差机床测量误差补偿主轴

Molecular Basis for Sesterterpene Diversity Produced by Plant Terpene Synthases

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Plant Communications 2020年第5期1卷 41-52页

作者： Qingwen Chen Jianxu Li Zhixi liu Takaaki Mitsuhashi Yuting Zhang Haili liu Yihua Ma Juan He Tetsuro Shinada Tsutomu Sato Yong Wang hongwei liu Ikuro Abe Peng Zhang Guodong Wang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China National Key Laboratory of Plant Molecular Genetics Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China Graduate School of Pharmaceutical Sciences University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-0033Japan State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Key Laboratory of Synthetic Biology Institute of Plant Physiology and EcologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200032China University of Chinese Academy of Sciences Beijing 100039China Graduate School of Science Osaka City University3-3-138 SugimotoSumiyoshiOsaka 558-8585Japan Department of Applied Biological Chemistry Faculty of AgricultureGraduate School of Science and TechnologyNiigata University8050 Ikarashi-2Niigata 950-2181Japan

Class I terpene synthase(TPS)generates bioactive terpenoids with diverse backbones.Sesterterpene synthase(sester-TPS,C25),a branch of class I TPSs,was recently identified in Brassicaceae.However,the catalytic mechanisms of sester-TPSs are not fully understood.Here,we first identified three nonclustered functional sester-TPSs(AtTPS06,AtTPS22,and AtTPS29)in Arabidopsis thaliana.AtTPS06 utilizes a type-B cyclization mechanism,whereas most other sester-TPSs produce various sesterterpene backbones via a type-A cyclization mechanism.We then determined the crystal structure of the AtTPS18–FSPP complex to explore the cyclization mechanism of plant sester-TPSs.We used structural comparisons and site-directed mutagenesis to further elucidate the mechanism:(1)mainly due to the outward shift of helix G,plant sester-TPSs have a larger catalytic pocket than do mono-,sesqui-,and di-TPSs to accommodate GFPP;(2)type-A sester-TPSs have more aromatic residues(five or six)in their catalytic pocket than classic TPSs(two or three),which also determines whether the type-A or type-B cyclization mechanism is active;and(3)the other residues responsible for product fidelity are determined by interconversion of AtTPS18 and its close homologs.Altogether,this study improves our understanding of the catalytic mechanism of plant sester-TPS,which ultimately enables the rational engineering of sesterterpenoids for future applications.

关键词： terpenoid terpene synthase sesterterpene cyclization mechanism crystal structure

Amelioration of metabolic disorders by a mushroom-derived polyphenols correlates with the reduction of Ruminococcaceae in gut of DIO mice

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Food Science and Human Wellness 2021年第4期10卷 442-451页

作者： Li Sun Li Bao Dorji Phurbu Shanshan Qiao Shanshan Sun Yangzom Perma hongwei liu State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100864China Savaid Medicine School University of Chinese Academy of SciencesBeijing 100864China Beijing Shijitan Hospital Capital Medicinal UniversityBeijing 100864China Tibet Plateau Institute of Biology Lhasa 850000China School of Life Sciences University of Science and Technology of ChinaHefei 230026China

A polyphenolic alkaloid-enriched extract(PAE)was prepared from the fruiting bodies of a wild edible mushroom Sarcodon leucopus.Oral administration of PAE reduced hyperglycemia,hyperlipidemia,hepatic steatosis,and LPS-related infl ammation in high fat diet-induced obese(DIO)mice.Furthermore,we show that PAE produces taxonomic and predicted functional changes in the gut microbiome of DIO mice.A signifi cant decrease in the family of Ruminococcaceae,especially the secondary bile acid-producing bacteria of Intestinimonas and Anaerotruncus,is detected in the gut microbiome of PAE-treate mice.Accordingly,reductions of deoxycholic acid and lithocholic acid are found in the feces of PAE-treated DIO mice,which benefi ts for the intestinal integrity and the reduction of infl ammation.A gut microbiota related mechanism for the anti-metabolic syndrome effects of the PAE is proposed.We suppose the polyphenolic alkaloid extract from S.leucopus be a new and benefi cial prebiotic regulating glucose and lipid metabolisms.

关键词： Sarcodon leucopus Polyphenolic alkaloids Metabolic syndrome Gut microbiota Ruminococcaceae

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毛泽东探索中国式现代化的历程、贡献与回响

社会科学动态 2024年第6期 17-24页

作者：刘宏伟郭治一大连理工大学马克思主义学院辽宁大连116024

毛泽东是中国社会主义现代化建设事业的伟大奠基者。在分别对毛泽东在新民主主义革命时期、社会主义革命和建设时期探索中国现代化的历程进行回眸的基础上,总结毛泽东为中国式现代化锚定“四个现代化”宏伟发展目标、设计“三位一体”... 详细信息

毛泽东是中国社会主义现代化建设事业的伟大奠基者。在分别对毛泽东在新民主主义革命时期、社会主义革命和建设时期探索中国现代化的历程进行回眸的基础上,总结毛泽东为中国式现代化锚定“四个现代化”宏伟发展目标、设计“三位一体”协同发展方案、构想“两步走”合理发展战略、创新“独立自主”动态发展模式的原创贡献,聚焦新时代坚持和加强党的全面领导、继承和创新马克思主义现代化理论、应用独立自主的原则方法、面向国际社会建构中国方案,以形成毛泽东探索中国式现代化的当代回响,这对于新时代新征程坚定不移走中国特色社会主义道路,坚持以中国式现代化全面推进强国建设、民族复兴伟业具有重大现实意义。

关键词：中国式现代化历史回眸原创贡献当代回响