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Fabrication and Optical Property of Cu_7S_4 Hollow Nanoparticles Formed Through Kirkendall Effect

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Chemical Research in Chinese Universities 2008年第2期24卷 249-250页

作者： WANG Chen-guang xu Zhu-de liu Run Physical Chemistry Research Institute Department of Chemistry Zhejiang University Hangzhou 310027 P. R. China

1 Introduction In recent years, there has been increasing interest in the controlled synthesis of hollow nanoparticles because of their widespread potential applications. The hollow nanoparticles can be used as catalysts, adsorbents, drug-delivery carriers, chemical reactors, and so on^[1-6]. Some nano and micro spheres are em- ployed as hard or soft templates to produce hollow structures＆[7-10].

关键词： Kirkendall effect Hollow Nanoparticle Morphology

Inhibitory effect of tenomodulin versus ranibizumab on in vitro angiogenesis

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International Journal of Ophthalmology(English edition) 2017年第8期10卷 1212-1216页

作者： Wei Wang guang-xu liu Yue-Hua Li xue-Dong Li Yan He Department of Ophthalmology Beijing Chao-Yang HospitalCapital Medical University Department of Epidemiology and Health Statistics School of Public HealthCapital Medical University

AIM： To evaluate anti-angiogenic effect of tenomodulin （TNMD） and ranibizumab on cell proliferation and capillary- like morphogenesis of vascular endothelial cells under the stimulation of vascular endothelial growth factor （VEGF） in vitro. METHODS： The effects of TNMD and ranibizumab on VEGF-induced proliferation of human umbilical vein endothelial cells （HUVECs） were evaluated by MTT assay, and the effects of TNMD and ranibizumab on capillary- like structures formed by HUVECs under the stimulation of VEGF were examined in culture. Capillary-like morphogenesis of HUVECs was quantitatively evaluated, and total lengths of tube-like structures per field were measured in a masked way. RESULTS： HUVECs with both ranibizumab and TNMD protein showed MTT reduction in VEGF-stimulated cell proliferation as expected, while MTT absorbance in the HUVECs with TNMD was significantly declined than that with ranibizumab （P〈O.01）. The capillary-like structures formed by HUVECs were markedly impaired by the presence of both TNMD and ranibizumab in the culture medium. The total length of the capillary-like structures per field was significantly shorter in the medium with TNMD than that of ranibizumab （P〈0.01）. The inhibitory effect of TNMD on tube formation in vitro angiogenesis was significantly stronger than that of ranibizumab. CONCLUSION： TNMD may have stronger inhibitory effect than ranibizumab on in vitro angiogenesis.

关键词： tenomodulin ranibizumab inhibitory effect proliferation angiogenesis

Controllable Photoelectric Properties of Carbon Dots and Their Application in Organic Solar Cells

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Chinese Journal of Polymer Science 2022年第1期40卷 7-20页

作者： Wen-Sheng Zhao Xin-Xin Li Han Zha Yong-Zhen Yang Ling-Peng Yan Qun Luo xu-guang liu Hua Wang Chang-Qi Ma Bing-She xu Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Printed Electronics Research Center Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of Sciences(CAS)Suzhou 215123China Ministry of Education and College of Textile Engineering Taiyuan University of TechnologyJinzhong 030600China

Organic solar cells are a current research hotspot in the energy field because of their advantages of lightness,translucency,roll to roll printing and building *** the rapid development of small molecule acceptor materials with high-performance,the efficiency of organic solar cells has been greatly *** improving the device efficiency and stability and reducing the cost of active layer materials will contribute to the industrial development of organic solar *** a novel type of carbon nanomaterials,carbon dots gradually show great application potential in the field of organic solar cells due to their advantages of low preparation cost,non-toxicity and excellent photoelectric ***,the synthesis and classification of carbon dots are briefly ***,the photoelectric properties of carbon dots and their adjusting,including adjustable surface energy level structure,good film-forming performance and up/down conversion characteristics are ***,based on these intrinsic properties,the feasibility and advantages of carbon dots used in organic solar cells are ***,the application progress of carbon dots in the active layer,hole transport layer,electron transport layer,interface modification layer and down-conversion materials of organic solar cells is also ***,the application progress of carbon dots in organic solar cells is *** further research directions,including in-depth exploration of the controllable preparation of carbon dots and their application in the fields of interface layer and up/down conversion for improving efficiency and stability of device are pointed out.

关键词： Organic solar cells Carbon dots Interface layer Power conversion efficiency Stability

Unraveling brain aging through the lens of oral microbiota

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Neural Regeneration Research 2025年第7期20卷 1930-1943页

作者： Qinchao Hu Si Wang Weiqi Zhang Jing Qu guang-Hui liu State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Hospital of Stomatology Guanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders Xuanwu HospitalCapital Medical UniversityBeijingChina Aging Translational Medicine Center International Center for Aging and CancerBeijing Municipal Geriatric Medical Research CenterXuanwu HospitalCapital Medical UniversityBeijingChina CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijingChina University of Chinese Academy of Sciences BeijingChina Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijingChina Aging Biomarker Consortium BeijingChina State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Beijing Institute for Stem Cell and Regenerative Medicine BeijingChina

The oral cavity is a complex physiological community encompassing a wide range of *** of oral microbiota can lead to various oral infectious diseases,such as periodontitis and tooth decay,and even affect systemic health,including brain aging and neurodegenerative *** studies have highlighted how oral microbes might be involved in brain aging and neurodegeneration,indicating potential avenues for intervention *** this review,we summarize clinical evidence demonstrating a link between oral microbes/oral infectious diseases and brain aging/neurodegenerative diseases,and dissect potential mechanisms by which oral microbes contribute to brain aging and *** also highlight advances in therapeutic development grounded in the realm of oral microbes,with the goal of advancing brain health and promoting healthy aging.

关键词： Alzheimer's disease brain aging multiple sclerosis neurodegeneration neurodegenerative diseases oral microbiota Parkinson's disease periodontitis bacteria Porphyromonas gingivalis

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慕课学习者的归因、动机与持续使用意图研究

电化教育研究 2017年第3期38卷 68-74页

作者：徐光刘鲁川山东财经大学管理科学与工程学院山东济南250014

为了探究慕课(MOOCs)学习者的"辍学"是否会对后续使用意图产生影响,基于学习成败归因理论和学习动机理论,先通过问卷调查并使用统计学的方法发现MOOCs学习成败归因有显著倾向性,再使用逐步回归法和路径分析法论证了成败归因、学习动机... 详细信息

为了探究慕课(MOOCs)学习者的"辍学"是否会对后续使用意图产生影响,基于学习成败归因理论和学习动机理论,先通过问卷调查并使用统计学的方法发现MOOCs学习成败归因有显著倾向性,再使用逐步回归法和路径分析法论证了成败归因、学习动机、持续使用意图之间的相互关系。研究发现,成功的能力和努力归因会通过内在动机对持续使用意图产生正向影响,失败的能力和运气归因会通过外在动机对持续使用意图产生负向影响,失败努力对持续使用意图直接产生正向影响,内在动机对持续使用意图有显著正向影响,外在动机对持续使用意图有显著负向影响。文章最后就如何引导归因给出了建议。

关键词： MOOCs 学习归因学习动机持续使用意图

中国作物种质资源学科的奠基者——记中国农业科学院董玉琛院士

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植物遗传资源学报 2017年第2期18卷 171-178页

作者：谭光万刘旭中国农业科学院作物科学研究所北京100081 大连海洋大学经济管理学院大连116023

董玉琛院士是我国作物种质资源学科的奠基人之一。将个人的成长置于学科发展和社会大背景下,从时代变迁与个人选择、学科发展与个人贡献、学术特点、科学精神与人格魅力4个方面系统梳理了董玉琛院士学术成长历程,探究其取得成功的影响因... 详细信息

董玉琛院士是我国作物种质资源学科的奠基人之一。将个人的成长置于学科发展和社会大背景下,从时代变迁与个人选择、学科发展与个人贡献、学术特点、科学精神与人格魅力4个方面系统梳理了董玉琛院士学术成长历程,探究其取得成功的影响因素,以启发和激励青年学者,传承和弘扬老科学家的科学精神。

关键词：董玉琛作物种质资源学奠基者

Observation of topological charge transformations in acoustic vortex using passive periodic systems

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 140-147页

作者： Di-Chao Chen Xie liu Changqing xu Da-Jian Wu Ying Cheng Xiao-Jun liu School of Physics and Technology Nanjing Normal University Key Laboratory of Modern Acoustics School of Physics Nanjing University

Vortex transmutation utilizes a periodic system, which not only enables the alteration of the topological charge(TC) of unstable input vortices but also facilitates their transformation into stable structures. This approach is crucial for investigating the characteristics of vortices in various wave systems. Here, we achieve acoustic vortex TC transmutation by employing a welldesigned dual-structured plate external system(DPES). The interactions between the acoustic vortex and the finite-order discrete rotational symmetry lead to the transformation of its topological charge when complete rotational symmetry is broken to Nthorder discrete symmetry. Our results experimentally demonstrate the acoustic vortex TC transmutation based on passive artificial structures, enabling numerous applications in particle manipulation and information multiplexing as well as advancing our understanding and control over free-space acoustic vortices.

关键词： acoustic vortex topological charge transformation artificial structure

A Clinicopathological Study on Stage Ⅰ Ovarian Adult Granulosa Cell Tumors with Recurrence within 5 Years

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Chinese Medical Journal 2018年第23期131卷 2877-2879页

作者： Zhen Huo Li-Na Guo Xiao-Hua Shi Zhi-Yong Liang Jin-Hui Wang xu-guang liu Tao Lu Jun-Yi Pang Department of Pathology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Department of Obstetrics and Gynaecology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China

To the Editor:Adult granulosa cell tumor (AGCT)of the ovary is a low-grade malignant,sex cord-stromal tumor with an indolent course and late *** usually occur more than 5 years after the first treatment.[1] However,a few cases of aggressive AGCT have been reported.[2,3] We retrospectively reviewed all 213 AGCT patients at Peking Union Medical College Hospital between 2000 and 2018 and identified six Stage I cases with recurrence <5 *** Ethics Committee of Peking Union Medical College Hospital specifically approved this study (No.S-K413),and all included patients provided written informed consent to participate in the study.

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Mutual-structure weighted guided image filtering for depth map restoration

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Optoelectronics Letters 2025年第1期21卷 51-56页

作者： liu Zijian SONG Jian CHEN Quanmin xu Jiangtao Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology School of Microelectronics Tianjin University Spikesee Technology Co. Ltd.

Although guided image filtering(GIF) is known for preserving edges and fast computation, it may produce inaccurate outputs in depth map restoration. In this paper, a novel confidence-weighted GIF called mutual-structure weighted GIF(MSWGIF) is proposed, which replaces the mean filtering strategy in GIF during handling overlapping windows. The confidence value is composed of a depth term and a mutual-structure term, where the depth term is utilized to protect the edges of the output, and the mutual-structure term helps to select accurate windows during the structure characteristics of the guidance image are transferred to the output. Experimental results show that MSWGIF reduces the root mean square error(RMSE) by an average of 12.37%, and the average growth rate of correlation(CORR) is 0.07% on average. Additionally, the average growth rate of structure similarity index measure(SSIM) is 0.34%.

关键词： Wiener filtering