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青年马克思主义者的高校思想政治教育特点及实践研究

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鄂州大学学报 2024年第3期31卷 14-16页

作者：郝琦李锐钰延安大学马克思主义学院陕西延安716000

文章主要围绕青年马克思主义者在高校思想政治教育中的特点及实践经验进行了论述。青年马克思主义者在高校思想政治教育中具有明显的特点,如思想坚定、理论扎实、实践能力强等。但同时也存在一些不足之处,如理论学习不够扎实、实践经验... 详细信息

文章主要围绕青年马克思主义者在高校思想政治教育中的特点及实践经验进行了论述。青年马克思主义者在高校思想政治教育中具有明显的特点,如思想坚定、理论扎实、实践能力强等。但同时也存在一些不足之处,如理论学习不够扎实、实践经验不足、组织能力不足等。为了解决这些问题,需要采取多种具体办法和措施,如加强理论学习和实践能力的结合、开展多样化的实践活动、加强组织建设和能力建设、注重与其他思想观念的对话和交流等。通过这些努力,可以更好地提高青年马克思主义者的思想素质和实践能力,更好地发挥他们在中国特色社会主义事业中的作用。

关键词：青年马克思主义者高校思想政治教育理论学习和实践能力

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基于三支特征表示的抽象画情感聚类分析

计算机工程与设计 2024年第3期45卷 882-888页

作者：赵婧琦李宇蕊杜明晶刘静玮江苏师范大学美术学院江苏徐州221100 江苏师范大学计算机科学与技术学院江苏徐州221100 中国航天科工集团第二研究院七〇六所北京100854

针对绘画图像情感标注所需资源巨大的问题,设计一种针对抽象画图像的情感聚类方法。提出一种基于三支决策的颜色特征表示方法和纹理特征表示方法,结合改进的深度学习模型,从抽象画图像中提取颜色特征、纹理特征和高层语义特征;使用多核... 详细信息

针对绘画图像情感标注所需资源巨大的问题,设计一种针对抽象画图像的情感聚类方法。提出一种基于三支决策的颜色特征表示方法和纹理特征表示方法,结合改进的深度学习模型,从抽象画图像中提取颜色特征、纹理特征和高层语义特征;使用多核k均值算法,自适应地融合3种特征,实现图像的情感聚类分析。实验结果表明,在MART和Deviant-Art数据集上,与4种基准方法相比,提出方法在准确度、Fowlkes-Mallows指数和标准化互信息上分别平均提高了30、23和49个百分点。提出方法在抽象画图像的情感聚类分析应用中表现出色,这也为其它绘画作品的无监督情感分析研究提供了参考。

关键词：三支决策抽象画多核聚类情感分析特征融合多视图聚类卷积神经网络

Strong and tough chitin hydrogel constructed by dehydration and rehydration strategy

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Nano Research 2024年第9期17卷 8192-8199页

作者： rui-rui liu li-Bo Mao Shu-Hong yu Division of Nanomaterials and Chemistry Hefei National Research Center for Physical Sciences at the MicroscaleDepartment of ChemistryInstitute of Biomimetic Materials and ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

As a renewable,biocompatible,biodegradable soft material,chitin hydrogels have better advantages in stability,antibacterial activity,antifouling,cost,immunogenicity,and so on than most polymer ***,compared with other widely used polymer hydrogels with high strength and toughness,the practical applications of chitin-based hydrogels have been limited by their weak mechanical properties,such as cartilage repair and meniscus ***,we present the design and fabrication of chitin hydrogels with excellent mechanical strength and toughness by a dehydration and rehydration *** sequential dehydration and rehydration processes,the crystalline domains in the chitin hydrogels can be properly *** optimized crystallinity,the elastic modulus of the chitin hydrogels exceeds all previously reported values,and the fracture toughness is even comparable to some synthetic polymer hydrogels,while maintaining a high-water-content of about 80 wt.%.At the same water content,the mechanical properties of the chitin hydrogels are positively correlated with the hydrogel crystallinity,which proves that the change of mechanical properties of hydrogels is not simply dependent on weight *** hydrogels can be further strengthened by incorporating other biopolymers that are intrinsically weak,which makes the hydrogels promising for applications in fields such as cartilage repair and meniscus ***,the hydrogels enable loading and release of water-soluble and poorly water-soluble *** highly extendable strengthening and toughening strategy of chitin and chitin-based biopolymer hydrogels paves the way for their widely applications.

关键词： chitin hydrogel crystallinity rehydration chemical transformation strong and tough

Dual-salt poly(tetrahydrofuran) electrolyte enables quasi-solid-state lithium metal batteries to operate at -30 ℃

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Journal of Energy Chemistry 2024年第9期96卷 456-463页

作者： Zhiyong li Zhuo li rui yu Xin Guo School of Materials Science and Engineering State Key Laboratory of Material Processing and Die&Mould TechnologyHuazhong University of Science and TechnologyWuhan 430074HubeiChina The State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The stable operation of solid-state lithium metal batteries at low temperatures is plagued by severe restrictions from inferior electrolyte-electrode interface compatibility and increased energy barrier for li^(+)***,we prepare a dual-salt poly(tetrahydrofuran)-based electrolyte consisting of lithium hexafluorophosphate and lithium difluoro(oxalato)borate(liDFOB).The li-salt anions(DFOB−)not only accelerate the ring-opening polymerization of tetrahydrofuran,but also promote the formation of highly ion-conductive and sustainable interphases on li metal anodes without sacrificing the li^(+)conductivity of electrolytes,which is favorable for li^(+)transport kinetics at low *** of this polymer electrolyte in li||liFePO_(4)cells show 82.3%capacity retention over 1000 cycles at 30℃and endow stable discharge capacity at−30℃.Remarkably,the li||liFePO4 cells retain 52%of their room-temperature capacity at−20℃and 0.1 *** rational design of dual-salt polymer-based electrolytes may provide a new perspective for the stable operation of quasi-solid-state batteries at low temperatures.

关键词： Poly(tetrahydrofuran) Dual-salt electrolyte Solidel ectrolyte interphase Low-temperature operation Quasi-solid-state battery

Progress in research on correlation among STAT3, CyclinD1, P21 genes and tumors

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Journal of Otology 2012年第1期7卷 19-24页

作者： BIAN Xin-hua li rui-yu Second Affiliated Hospital of Xingtai Medical College 054000

Objective Along with changes in the ecology system and under the influence of various environmental factors, the incidence of tumor has been increasing year after year. There is a trend in cancer therapy to move to combined therapies involving surgery, radiation chemotherapy and gene therapy. Cancer gene therapy in recent years has brought new opportunities for treatment of tumor. Its advantages include low rate of tolerance, insensitivity to cell cycles, high specificity and coverage for both primary and metastatic tumors1＇2. However, this is a new field of clinical research. Regarding the correlation among the STAT3, CyclinD1 and P21 genes and tumors, research has focused on their expression and regulation. This article provides a summary of related research.

关键词： stat3 cyclinD1 P21

Local Responses to Macro Development Policies and Their Effects on Rural System in China's Mountainous Regions:The Case of Shuanghe Village in Sichuan Province

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Journal of Mountain Science 2013年第4期10卷 588-608页

作者： li yu-rui liU Yan-sui LONG Hua-lou WANG Jie-yong Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Key Laboratory of Regional Sustainable Development Modeling Chinese Academy of Sciences

China has promulgated a series of policies including the Western Development Program, the Grain for Green Project, agricultural support policies and building a new countryside strategy to eliminate east-west differences and urban-rural disparities since the late 1990s. This paper gives a holistic examination on local responses to the four typical macro socio-economic development policies and their effects on rural system based on a case study of a mountainous village in southern Sichuan Province. The results showed that the policies have not moved the case study village from its historically marginal status. To some extent, its socio-economic situation might have been worsened by accelerated out- migration of the youth, loss of agricultural land due to afforestation and industrial plants, increased fire hazard due to afforestation and reforestation, increased environmental pollution due to industrial enterprises attracted to the village and a steep decline in agricultural production due to loss of and inefficient use of cultivated land. Factors causing local villages' dilemmas include the nonuniformity of actors' objectives, finiteness of villagers' abilities, and the imperfect incentive and restraint mechanism for local government's activities under existing policy framework composed of uncoordinated one-size-fits- all policies. We suggest that China's rural policy in the new period should gradually shift from a sectoral to a place-based one, from top-down incentives to the development of bottom-up projects, and fully recognize the diversity of rural space, so as to lift localcapacities and make good use of the knowledge shared by different actors. Moreover, it is also necessary to integrate the various sectoral policies, and improve the interministerial and interdepartmental coordination of rural policies at regional and local levels.

关键词： Local responses Western DevelopmentProgram Grain for Green Project Agriculturalsupport policies Building new countryside Ruralpolicy evaluation

Construction of multifunctional lanthanum manganese mixed nanoparticles mediated by ionic liquids for selective aerobic oxidation of cyclohexane

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Rare Metals 2024年第5期43卷 2205-2221页

作者： Hao li rui-rui Zhang Ke-Xin li Shuang Wei yu-Mei liu rui-Xia liu Beijing Key Laboratory of Ionic liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Selective oxidation of alkanes to produce highvalue chemicals is an essential strategy and means to realize efficient utilization of *** this work,a strategy of lanthanum manganese mixed metal oxides(LMMO)regulated via a facile ionic liquid(IL)-assisted hydrothermal method was proposed to construct the multifunctional catalysts,which exhibited excellent catalytic performance in the selective aerobic oxidation of *** 8.9%cyclohexane conversion with 90%KA oi(cyclohexanol and cyclohexanone)selectivity was achieved over the optimal LMMO catalyst under mild *** effects of anion type,carbon chain length and concentration of ILs on the structure and properties of catalysts were investigated through various characterizations,indicating the structure-directing and template effect of ILs on the multifunctional *** formation of self-assembled spherical nanoparticles followed the"dissolution-nucleation-proliferation"mechanism with the introduction of 1-butyl-3-methylimidazolium hydrogen sulfate,ascribing the synergistic effect between the microenvironment of ILs and the hydrothermal ***,the high reactive oxygen concentration redox capacity,and suitable basic sites of LMMO catalysts mediated by ILs enhance the activation of C-H bonds and molecular oxygen,simultaneously influencing the adsorption and desorption of the substrate.A comprehensive understanding of the high KA oil selectivity and radical reaction mechanism was elucidated based on in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)and radical trapping *** recycling and regeneration experiments further illuminated that the removal of adsorbed cyclohexanone acting on the LMMO catalyst was the key to achieve high KA oil selectivity.

关键词： Ionic liquids Nanoparticle Multifunctional catalyst Cyclohexane oxidation

Compounding soils to improve cropland quality:A study based on field experiments and model simulations in the loess hilly-gully region,China

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Journal of Mountain Science 2022年第10期19卷 2776-2790页

作者： HUANG yun-xin liU Zheng-jia liU Yan-sui li yu-rui liU Xue-qi Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 101408China National Observation and Research Station of Earth Critical Zone on the Loess Plateau in Shaanxi Xi'an 710061China Faculty of Geographical Science Beijing Normal UniversityBeijing 100875China

Increasing the quantity and improving the quality of cropland can alleviate the human-land contradiction and promote the sustainable development of agriculture especially in mountainous *** the support of the central government’s policies,Yan’an,Northern Shaanxi,China implemented a major land consolidation engineering project in the loess hilly-gully region from 2013 to 2018,achieving 33,333.3 ha of new ***,the poor quality of some newly-constructed cropland at the initial stage hindered its efficient *** order to overcome this problem,red clay and Malan loess were compounded in different volume ratios to explore the method to improve the cropland *** Root Zone Water Quality Model was used to simulate the effects of different soil treatments on soil water,nitrogen and maize *** data were collected from 2018 to 2019 to calibrate and validate the *** root mean square error(RMSE)of soil water content,nitrate nitrogen concentration,above-ground biomass,leaf area index were in the range of 11.72-14.06 mm,4.06-11.73 mg kg^(-1),835.21-1151.28 kg ha^(-1)and 0.24-0.47,respectively,while the agreement index(d)between measured and simulated values ranged from 0.70 to *** was showed that,compared with land constructed with Malan loess only(T1),the soil structure and hydraulic characteristics of land with a volume ratio of red clay and Malan loess of 2:1(T3)was *** indicated that,compared with T1,the soil water content and available water content of T3 increased by 14.4%and 19.0%,respectively,while N leaching decreased by 16.9%.The aboveground biomass and maize yield of T3 were 7.9%and 6.7%higher than that of T1,***,the water productivity and nitrogen use efficiency of T3 increased by 21.0%and 16.6%compared with that of *** results indicated that compounding red clay and Malan loess in an appropriate ratio was an effective method to improve soil *** study provides a

关键词： Soil reconstruction Soil quality Land consolidation engineering High-quality cropland Loess hilly-gully region Root Water Quality Model

The optimal time-frequency atom search based on a modified ant colony algorithm

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Optoelectronics Letters 2008年第3期4卷 227-230页

作者： GUO Jun-feng li Yan-jun yu rui-xing ZHANG Ke College of Astronautics Northwestern Polytechnical University Xi＇ an 710072China

this paper, a new optimal time-frequency atom search method based on a modified ant colony algorithm is proposed to improve the precision of the traditional methods. First, the discretization formula of finite length time-frequency atom is inferred at length. Second; a modified ant colony algorithm in continuous space is proposed. Finally, the optimal time- frequency atom search algorithm based on the modified ant colony algorithm is described in detail and the simulation experiment is carried on. The result indicates that the developed algorithm is valid and stable, and the precision of the method is higher than that of the traditional method.

关键词：最优化频率原子计算方法