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Particuology 2024年第7期90卷 1-9页

作者： jin yao Qiuju Chen Li Zeng Wenjin Ding Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle Southwest University of Science and TechnologyMianyang621010China Sichuan Engineering Lab of Non-metallic Mineral Powder Modification and High-value Utilization Mianyang621010China School of Architecture and Civil Engineering Chengdu UniversityChengdu610106China

Based on the composition characteristics of carbide slag and the application of polyvinyl chloride,a method of preparing calcium carbonate with microstructure and nanostructure by using carbide slag as a raw material and ammonium chloride as a leaching agent was *** factors for the preparation of calcium carbonate and the effects of different conditions on the crystal phase,grain size,and morphology of calcium carbonate were systematically *** results showed that the nanosized calcium carbonate was prepared at 60 mL/min,25°C,no additional ammonia,and 60 *** product of spherical vaterite was in accordance with the relevant standards for the industrial precipitation of calcium ***,the reuse of carbonation filtrate was *** crystal phase,grain size,and morphology of the carbonation product could be controlled by adjusting the reaction *** manuscript provided a new idea for resource utilization of carbide slag and preparing nanocalcium carbonate.

关键词： Carbide slag Ammonium chloride Cyclic utilization Micro and nano structure Product control

Dielectric metasurface evolution from bulk to monolayer by strong coupling of quasi-BICs for second harmonic boosting

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Photonics Research 2024年第4期12卷 784-792页

作者： YINONG XIE QIANTING CHEN jin yao XUEYING LIU ZHAOGANG DONG jinFENG ZHU Institute of Electromagnetics and Acoustics and Key Laboratory of Electromagnetic Wave Science and Detection Technology Xiamen UniversityXiamen 361005China Shenzhen Research Institute of Xiamen University Shenzhen 518057China Department of Electrical Engineering City University of Hong KongHong Kong 999077China Institute of Materials Research and Engineering(IMRE) Agency for ScienceTechnology and Research(A*STAR)Singapore 138634Singapore Department of Materials Science and Engineering National University of SingaporeSingapore 117575Singapore

2D materials are promising candidates as nonlinear optical components for on-chip devices due to their ultrathin structure. In general, their nonlinear optical responses are inherently weak due to the short interaction thickness with light. Recently, there has been great interest in using quasi-bound states in the continuum (q-BICs) of dielectric metasurfaces, which are able to achieve remarkable optical near-field enhancement for elevating the second harmonic generation (SHG) emission from 2D materials. However, most studies focus on the design of combining bulk dielectric metasurfaces with unpatterned 2D materials, which suffer considerable radiation loss and limit near-field enhancement by high-quality q-BIC resonances. Here, we investigate the dielectric metasurface evolution from bulk silicon to monolayer molybdenum disulfide (MoS2), and discover the critical role of meta-atom thickness design on enhancing near-field effects of two q-BIC modes. We further introduce the strongcoupling of the two q-BIC modes by oblique incidence manipulation, and enhance the localized optical field on monolayer MoS2dramatically. In the ultraviolet and visible regions, the MoS2SHG enhancement factor of our design is 105times higher than that of conventional bulk metasurfaces, leading to an extremely high nonlinear conversion efficiency of 5.8%. Our research will provide an important theoretical guide for the design of high-performance nonlinear devices based on 2D materials.

关键词： monolayer harmonic quasi

Symmetrization of quasi-regular patterns with periodic tilting of regular polygons

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Computational Visual Media 2024年第3期10卷 559-576页

作者： Zhengzheng Yin yao jin Zhijian Fang Yun Zhang Huaxiong Zhang Jiu Zhou Lili He School of Computer Science and Technology Zhejiang Sci-Tech UniversityHangzhou 310018China Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000China School of Media Engineering Communication University of ZhejiangHangzhou 310018China

Computer-generated aesthetic patterns arewidely used as design materials in various ﬁelds. Themost common methods use fractals or dynamicalsystems as basic tools to create various patterns. Toenhance aesthetics and controllability, some researchershave introduced symmetric layouts along with thesetools. One popular strategy employs dynamical systemscompatible with symmetries that construct functionswith the desired symmetries. However, these aretypically conﬁned to simple planar symmetries. Theother generates symmetrical patterns under theconstraints of tilings. Although it is slightly moreﬂexible, it is restricted to small ranges of tilingsand lacks textural variations. Thus, we proposed anew approach for generating aesthetic patterns bysymmetrizing quasi-regular patterns using general kuniformtilings. We adopted a uniﬁed strategy toconstruct invariant mappings for k-uniform tilings thatcan eliminate texture seams across the tiling ***, we constructed three types of symmetriesassociated with the patterns: dihedral, rotational, andreﬂection symmetries. The proposed method can beeasily implemented using GPU shaders and is highlyefficient and suitable for complicated tiling with regularpolygons. Experiments demonstrated the advantages of our method over state-of-the-art methods in terms ofﬂexibility in controlling the generation of patterns withvarious parameters as well as the diversity of texturesand styles.

关键词： quasi-regular patterns(QRP) k-uniform tilings invariant mappings symmetry aesthetic patterns

Role of tannin pretreatment in flotation separation of magnesite and dolomite

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International Journal of Minerals,Metallurgy and Materials 2024年第3期31卷 452-461页

作者： Xiufeng Gong jin yao Jun Guo Bin Yang Haoran Sun Wanzhong Yin Yulian Wang Yafeng Fu School of Resources and Civil Engineering Northeastern UniversityShenyang 110819China Key Laboratory of Solid Waste Treatment and Resource Utilization of the Ministry of Education Southwest University of Science and TechnologyMianyang 621010China School of Chemical Engineering China University of Mining and TechnologyXuzhou 221116China School of Materials Science and Engineering Shenyang Ligong UniversityShenyang 110159China Ansteel Beijing Research Institute Co. Ltd.Beijing 102200China

Flotation separation of magnesite and its calcium-containing carbonate minerals is a difficult ***,new regulat-ors have been proposed for magnesite flotation decalcification,although traditional regulators such as tannin,water glass,sodium carbon-ate,and sodium hexametaphosphate are more widely used in ***,they are rarely used as the main regulators in research because they perform poorly in magnesite and dolomite single-mineral flotation *** by the limonite presedimentation method and the addition of a regulator to magnesite slurry mixing,we used a tannin pretreatment method for separating magnesite and *** experiments confirmed that the tannin pretreatment method selectively and largely reduces the flotation recovery rate of dolomite without affecting the flotation recovery rate of ***,the contact angles of the tannin-pretreated magnesite and dolomite increased and decreased,respectively,in the presence of *** potential and Fourier transform infrared analyses showed that the tannin pretreatment method efficiently hinders NaOl adsorption on the dolomite surface but does not affect NaOl adsorption on the magnesite surface.X-ray photoelectron spectroscopy and density functional theory calculations confirmed that tannin interacts more strongly with dolomite than with magnesite.

关键词： tannin pretreatment selective inhibition flotation separation magnesite dolomite

Miniature tunable Airy beam optical meta-device

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Opto-Electronic Advances 2024年第2期7卷 5-12页

作者： jing Cheng Zhang Mu Ku Chen Yubin Fan Qinmiao Chen Shufan Chen jin yao Xiaoyuan Liu Shumin Xiao Din Ping Tsai Department of Electrical Engineering City University of Hong KongKowloonHong Kong SAR 999077China State Key Laboratory of Terahertz and Millimeter Waves City University of Hong KongKowloonHong Kong SAR 999077China Centre for Biosystems Neuroscienceand NanotechnologyCity University of Hong KongKowloonHong Kong SAR 999077China Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic SystemsHarbin Institute of TechnologyShenzhen 518055China

Tunable Airy beams with controllable propagation trajectories have sparked interest in various fields,such as optical manipulation and laser *** research approaches encounter challenges related to insufficient compactness and integration feasibility,or they require enhanced tunability to enable real-time dynamic manipulation of the propagation *** this work,we present a novel method that utilizes a dual metasurface system to surpass these limitations,significantly enhancing the practical potential of the Airy *** approach involves encoding a cubic phase profile and two off-axis Fresnel lens phase profiles across the two *** validity of the proposed strategy has been confirmed through simulation and experimental *** proposed meta-device addresses the existing limitations and lays the foundation for broadening the applicability of Airy beams across diverse domains,encompassing light-sheet microscopy,laser fabrication,optical tweezers,etc.

关键词： metasurface miniature device tunable Airy beam tunable meta-device

Indirubin alleviates retinal neurodegeneration through the regulation of PI3K/AKT signaling

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Journal of Biomedical Research 2024年第3期38卷 256-268页

作者： Huan Li Huiying Zhang Lushu Chen Yaming Shen Yuan Cao Xiumiao Li jin yao Department of Ophthalmology the Affiliated Eye Hospital of Nanjing Medical UniversityNanjingJiangsu 210029China Department of Ophthalmology the Fourth School of Clinical MedicineNanjing Medical UniversityNanjingJiangsu 210029China

Retinal neurodegenerative disease is a leading cause of blindness among the elderly in developed countries,including glaucoma,diabetic retinopathy,traumatic optic neuropathy and optic neuritis,*** current clinical treatment is not very *** investigated indirubin,one of the main bioactive components of the traditional Chinese medicine Danggui Longhui Pill,in the present study for its role in retinal *** exhibited no detectable tissue toxicity in vivo or cytotoxicity in ***,indirubin improved visual function and ameliorated retinal neurodegeneration in mice after optic nerve crush injury in ***,indirubin reduced the apoptosis of retinal ganglion cells induced by oxidative stress in *** addition,indirubin significantly suppressed the increased production of intracellular reactive oxygen species and the decreased activity of superoxide dismutase induced by oxidative ***,indirubin played a neuroprotective role by regulating the PI3K/AKT/BAD/BCL-2 *** conclusion,indirubin protected retinal ganglion cells from oxidative damage and alleviated retinal neurodegeneration induced by optic nerve crush *** present study provides a potential therapeutic medicine for retinal neurodegenerative diseases.

关键词： retinal neurodegenerative disease oxidative stress PI3K/AKT retinal ganglion cell apoptosis

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新中国成立初期湖南参军参干运动

湘潭大学学报（哲学社会科学版） 2024年第3期48卷 181-186页

作者：金瑶湘潭大学马克思主义学院湖南湘潭411105

新中国成立初期,为支援抗美援朝战争并推动国防军队的现代化建设,湖南省在中共中央和中南局的领导下,积极开展了参军参干运动。由于湖南曾长期受国民党统治,部分青年学生、工人对参军参干的认识存在误区。为此,湖南全省开展了时事政治... 详细信息

新中国成立初期,为支援抗美援朝战争并推动国防军队的现代化建设,湖南省在中共中央和中南局的领导下,积极开展了参军参干运动。由于湖南曾长期受国民党统治,部分青年学生、工人对参军参干的认识存在误区。为此,湖南全省开展了时事政治教育宣传,经过广泛而深入的动员,青年学生、工人及改造后的土匪踊跃报名参军参干,全省不仅按期完成上级指定的任务,还超额完成了目标。湖南参军参干运动作为新中国成立初期国防建设和抗美援朝运动的重要组成部分,为抗美援朝战争和国防建设提供了兵源和人才保障,同时也为军队的现代化建设储备了大量干部,推动了新中国国防和军队现代化建设的进程,并激发了广大青年的爱国热情。

关键词：抗美援朝湖南参军参干运动历史经验

结合空间—光谱信息的快速自训练高光谱遥感影像分类

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遥感学报 2024年第1期28卷 219-230页

作者：金垚董燕妮杜博中国地质大学(武汉)地球物理与空间信息学院武汉430074 湖北珞珈实验室武汉430079 武汉大学测绘遥感信息工程国家重点实验室武汉430079 武汉大学资源与环境科学学院武汉430079 武汉大学计算机学院武汉430072

自训练方法被广泛应用于高光谱影像分类任务中以解决标记样本获取困难的问题。传统的自训练方法不仅忽略了高光谱影像所能提供的空间信息,导致最终分类精度受到影响;同时在每次迭代过程中都需要完成一次对未标记数据的分类任务,导致需... 详细信息

自训练方法被广泛应用于高光谱影像分类任务中以解决标记样本获取困难的问题。传统的自训练方法不仅忽略了高光谱影像所能提供的空间信息,导致最终分类精度受到影响;同时在每次迭代过程中都需要完成一次对未标记数据的分类任务,导致需要大量的时间成本。因此,针对上述问题,本文提出了一种基于空间—光谱信息的快速自训练方法用于高光谱影像分类。与传统的自训练方法不同,该方法在迭代过程中使用空间—光谱信息对未标记数据进行筛选完成标记样本的扩充,而不是使用分类器对未标记样本进行分类。首先针对初始标记样本使用空间邻域块选择空间近邻点,然后使用自适应阈值对空间近邻点进行二次筛选得到空谱近邻点赋予标记,最后根据扩充后的标记样本对分类器进行训练完成分类任务。结果表明,在Washington DC Mall Subimage高光谱数据集中每类分别选择2个和10个训练样本时,整体分类精度分别达到了93.17%和95.43%;而在Indian Pines数据集中整体分类精度分别达到了59.75%和86.13%。我们提出的结合空间—光谱信息的快速自训练方法和对比方法相比,我们的方法有明显的提升。

关键词：高光谱遥感半监督分类小样本问题空间—光谱信息自训练方法

TCERG1L hypermethylation is a risk factor of diabetic retinopathy in Chinese children with type 1 diabetes

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 537-544页

作者： Yu Qian Ying Xiao Qiu-Rong Lin Zhao-Yu Xiang Li-Pu Cui Jia-Qi Sun Si-Cong Li Xin-Ran Qin Hai-Dong Zou Chen-Hao Yang Pei-yao jin Department of Ophthalmology Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai First People’s HospitalShanghai 200080China Shanghai Eye Diseases Prevention&Treatment Center Shanghai Eye HospitalShanghai 200040China National Clinical Research Center for Eye Diseases Shanghai Clinical Research Center for Eye DiseasesShanghai Key Clinical SpecialtyShanghai Key Laboratory of Ocular Fundus DiseasesShanghai Engineering Center for Visual Science and PhotomedicineShanghai Engineering Center for Precise Diagnosis and Treatment of Eye DiseasesShanghai 200080China Department of Ophthalmology Children’s Hospital of Fudan UniversityShanghai 201102China

●AIM:To identify the differential methylation sites(DMS)and their according genes associated with diabetic retinopathy(DR)development in type 1 diabetes(T1DM)children.●METHODS:This study consists of two surveys.A total of 40 T1DM children was included in the first *** no participant has DR,retina thinning was used as a surrogate indicator for *** lowest 25%participants with the thinnest macular retinal thickness were included into the case group,and the others were *** DNA methylation status was assessed by the Illumina methylation 850K array BeadChip assay,and compared between the case and control *** DMS with a potential role in diabetes were *** second survey included 27 T1DM children,among which four had *** methylation patterns of the four DMS identified by 850K were compared between participants with and without DR by pyrosequencing.●RESULTS:In the first survey,the 850K array revealed 751 sites significantly and differentially methylated in the case group comparing with the controls(|Δβ|>0.1 and Adj.P0.05)between participants with and without DR.●CONCLUSION:The hypermethylation of the TCERG1L gene is a risk factor for DR development in Chinese children with T1DM.

关键词： DNA methylation 850K array pyrosequencing diabetic retinopathy type 1 diabetes children

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论习近平文化思想的原创性贡献

新疆师范大学学报（哲学社会科学版） 2024年第4期45卷 25-36页

作者：姚金艳柳颖华中师范大学马克思主义学院湖北武汉430079

习近平文化思想高屋建瓴、精辟深邃,是内涵丰富、逻辑严密、论述深刻的理论体系,是新时代党领导文化建设实践经验的理论总结,是马克思主义文化理论中国化时代化的最新成果。习近平文化思想创造性提出“建设中华民族现代文明”这一时代命... 详细信息

习近平文化思想高屋建瓴、精辟深邃,是内涵丰富、逻辑严密、论述深刻的理论体系,是新时代党领导文化建设实践经验的理论总结,是马克思主义文化理论中国化时代化的最新成果。习近平文化思想创造性提出“建设中华民族现代文明”这一时代命题,赋予中华文明新的文化内涵和发展活力;高度重视中国特色社会主义文化建设,把文化建设摆在治国理政的突出位置,将意识形态工作和宣传思想文化工作视为极端重要的工作,对建设文化强国作出新的判断和战略部署。同时,习近平文化思想鲜明提出文化使命、文化自信、“两个结合”“又一次思想解放”、中国共产党人精神谱系等一系列原创性理论,从政治保证、制度保障、价值引领、文化底蕴和国际建设五个方面为新时代文化建设谋划新方略,为中国特色社会主义文化建设提供强大思想武器和科学行动指南。

关键词：习近平文化思想中华文化文化强国 “两个结合”

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