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新形势下高校网络舆情安全风险的识别与防范

广西教育学院学报 2025年第1期40卷 60-69页

作者：刘鸿滨孙海清青岛城市学院党委宣传部(统战部) 山东青岛266106

随着互联网的发展,学校管理工作已经从现实世界延伸到了网络空间,做好网络舆情管理工作是学校综合管理能力的重要组成部分,对学校教育教学工作乃至社会的和谐与稳定有着重要影响。结合有关高校舆情事件案例和数据,从物理、事理、人理三... 详细信息

随着互联网的发展,学校管理工作已经从现实世界延伸到了网络空间,做好网络舆情管理工作是学校综合管理能力的重要组成部分,对学校教育教学工作乃至社会的和谐与稳定有着重要影响。结合有关高校舆情事件案例和数据,从物理、事理、人理三个层面列出风险清单并进行权重分析。确定高校网络舆情安全的关键风险因素为物的管理因素,在具体指标中,师德师风、作风纪律、涉留学生问题、网民媒体、高校日常管理与运行、安全事故等是关键因素。为此,应关注重点风险因素以化解舆情风险,提升网络素养教育以营造良好生态,创新整体整治机制以优化治理模式,加强事件分析研判以增强舆情预判,有效引导舆论发展以做好舆情应对,注重事后检查恢复以完善舆情评估,从而提高高校网络舆情安全管理能力。

关键词：高校网络舆情风险因素风险评估风险管理

新时代高校宣传思想文化工作的价值、困境与优化

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长春市委党校学报 2025年第1期 45-49页

作者：刘鸿滨张远向青岛城市学院党委宣传部(统战部) 中国农业大学马克思主义学院共青团中国农业大学委员会青年工作研究中心山东劳动职业技术学院

习近平文化思想为做好新时代高校宣传思想文化工作提供了根本遵循,为高校高质量发展指引了正确方向,巩固了思想基础,筑牢了精神力量,提供了方法保障。新形势下,高校宣传思想文化工作也面临着新任务与新挑战。各高校需要从导向向度、立... 详细信息

习近平文化思想为做好新时代高校宣传思想文化工作提供了根本遵循,为高校高质量发展指引了正确方向,巩固了思想基础,筑牢了精神力量,提供了方法保障。新形势下,高校宣传思想文化工作也面临着新任务与新挑战。各高校需要从导向向度、立场向度、内容向度、价值向度等现实向度出发,不断优化宣传思想文化工作,担负起新的文化使命。

关键词：习近平文化思想高校思政宣传思想文化

Resistance genes mediate differential resistance to pine defensive substances α-Pinene and H_(2)O_(2) in Bursaphelenchus xylophilus with different levels of virulence

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Journal of Forestry Research 2021年第4期32卷 1753-1762页

作者： Lin Rui hongbin liu Rui Liang Xiaoqin Wu Co-Innovation Center for Sustainable Forestry in Southern China College of ForestryNanjing Forestry UniversityNanjing 210037JiangsuPeople’s Republic of China Jiangsu Key Laboratory for Prevention and Management of Invasive Species Nanjing Forestry UniversityNanjing 210037JiangsuPeople’s Republic of China

The pine wood nematode(PWN),Bursaphelenchus xylophilus(Steiner & Buhrer) Nickle,is the pathogen of pine wilt disease(PWD) which can devastate *** can be of hi gh or low severity and the mechanisms underlying the differences in virulence are ***,it is necessary to study the relationship between differentiation of PWN severity and its resistance to the main defensive substances of pine species(i.e.,α-pinene and H_(2)O_(2)).The feeding rate and fecundity of PWN was examined at different levels of virulence under conditions of a-pinene and H_(2)O_(2) ***,the expression patterns of the main resistance genes of PWN with different virulence were determined under conditions of α-pinene and H_(2)O_(2) *** feeding rate and fecundity of the high virulence strain AMA3 were higher than those of the low virulence strain *** expression levels of the autophagy gene BxATG5,cytochrome P450 gene BxCYP33 D3,and glutathione S-transferase genes BxGST1 and BxGST3 in AMA3 increased significantly upon exposure to α-pinene for 2 h,while these genes showed smaller degrees of upregulation in *** conditions of H_(2)O_(2) stress,the expression levels of BxATG5,catalase genes Bxy-ctl-1 and Bxy-ctl-2,and the 2-cysteine peroxiredoxin gene BxPrx in AMA3 were higher than those in *** findings suggest that high virulence PWN has greater resistance to pine defensive substances α-pinene and H_(2)O_(2) than low virulence PWN,and resistance genes mediate the differential resistance of PWN *** study will contribute to the clarification of the mechanism underlying virulence differentiation of PWN and will advance understanding of the pathogenic mechanism of PWD.

关键词： Pine wood nematode Virulence Defensive substances Autophagy gene Detoxification gene Antioxidant gene

Taxonomy, Morphology and Phylogeny of a New Oligotrich Ciliate-Omegastrombidium hongkongense n. sp.(Protozoa: Ciliophora) from Clear Water Bay, Hong Kong

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Journal of Ocean University of China 2018年第4期17卷 890-896页

作者： SHEN Zhuo liu Weiwei ZHANG Shuwen YI Zhenzhen liu hongbin Microbial Ecology and Matter Cycle Group School of Marine Sciences Sun Yat-sen University Coastal Marine Laboratory The Hong Kong University of Science and Technology Key Laboratory of Tropical Marine Bio-Resources and Ecology South China Sea Institute of Oceanology Chinese Academy of Science Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring School of Life Science South China Normal University

One new marine oligotrich ciliate, Omegastrombidium hongkongense n. sp., was isolated from a bloom of Noctiluca scuntillans near Port Shelter, Hong Kong. The morphology and infraciliature of this new species were studied on both living and protargol-stained specimens. Its phylogenetic position was discussed based on the sequence of the small subunit r RNA gene. O. hongkongense is different from its congeners with special characters. The cells are usually heart-shaped, and the cell size usually is(20–35) ×(20–30) μm in vivo. Its deep buccal cavity extends obliquely to about 1/2 of cell length. It shows prominent apical protrusion. The adoral zone of membranelles is divided into 17–19 collar membranelles and four buccal membranelles. It has one ball-like macronucleus. The girdle kinety forms a closed loop which obliquely surrounds the body. The ventral kinety and thigmotactic membranelles are not observed. The SSU r RNA sequence of O. hongkongense was close to those of Strombidium paracalkinsi and Varistrombidium kelum with approximately 99% similarity. In the phylogenetic trees, O. hongkongense can be grouped with O. elegans and V. kielum species with very low support(16% ML).

关键词： infraciliature marine ciliate morphology Oligotrichia Noctiluca scuntillans

An experimental investigation of the thermal spalling of polypropylene-fibered reactive powder concrete exposed to elevated temperatures

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Science Bulletin 2015年第23期60卷 2022-2053页

作者： Yang Ju Li Wang hongbin liu Kaipei Tian State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology State Key Laboratory for Geomechanics and Deep Underground Engineering China University of Mining and Technology Lawrence Berkeley National Laboratory School of Mechanics and Civil Engineering China University of Mining and Technology Institute of Construction Materials University of Stuttgart

Polypropylene fibers are embedded to prevent reactive powder concrete （RPC） from spalling failure under high temperatures. This paper probes the influence of embedded fibers at various volumetric dosages on the thermomechanical properties of polypropylene-fibered reactive powder concrete （PPRPC） exposed to high tem- peratures up to 350 ℃ and on the spalling performance and characteristics up to 600 ℃. The thermomechanical prop- erties include the characteristic temperature for spalling, and residual strengths, such as the compressive strength, split tensile strength, and flexural tensile strength. A high- definition charge-coupled device camera and scanning electron microscope technology were employed to capture the spalling processes and to detect the microstructural changes in the materials with various fiber dosages. To understand and characterize the mechanism by which polypropylene fibers influence the thermal spalling of RPC, a numerical model to determine the moisture migration and vapor pressure transmission during spalling was developed in this paper. It showed that there was an optimal volu- metric dosage of fibers to prevent PPRPC from explosive spalling. The relationships between the mechanical char- acteristics of PPRPC and the fiber dosages were derived based on experimental data.

关键词： Polypropylene reactive powder concrete(PPRPC) · Thermal spalling · Vapor pressuremechanism · Polypropylene fibers ·Elevated temperatures

Mesomechanism of steel fiber reinforcement and toughening of reactive powder concrete

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Science China(Technological Sciences) 2007年第6期50卷 815-832页

作者： JU Yang JIA YuDan liu hongbin CHEN Jian State Key Laboratory of Coal Resources and Safe Mining China University of Mining & Technology Beijing 100083 China State Key Laboratory of Coal Resources and Safe Mining China University of Mining & Technology Beijing 100083 China State Key Laboratory of Coal Resources and Safe Mining China University of Mining & Technology Beijing 100083 China State Key Laboratory of Coal Resources and Safe Mining China University of Mining & Technology Beijing 100083 China

Reactive powder concrete (RPC) is a novel cement-based composite material with ultra-high strength. Embedding a certain amount of short steel fibers in the matrix can improve the RPC’s toughness and overcome the disadvantage of high brittle- ness. In this paper, a number of direct uniaxial tension tests have been carried out with ‘8-shape’ RPC200 specimens. The bond-slip process, mesoscopic structural variation and mechanical characteristics of a fiber pullout of the matrix have been investigated using the real-time SEM loading system and CCD observation tech- niques. The influence of the volume of embedded short steel fibers in matrix on the mesoscopic morphology of attachments on the surface of a pulled individual fiber, the initial cracking force, the ultimate pullout force, interfacial bond strength and the pullout rupture energy have been analyzed. A general formulation relating these quantities to the volume of fibers in matrix has been proposed. The components comprising the interfacial bond strength have been outlined. In addition, the con- tribution that fibers make to enhance and toughen the reactive powder concrete has been discussed. It is shown that there exists an optimal threshold of fiber volume ρv, opt =1.5% at which the bond performance of a fiber pullout of RPC be- haves best.

关键词： reactive powder concrete, steel fiber, interfacial bond strength, reinforcement and toughening, mesomechanism

Environmental benefits and farmers' adoption of winter cover crops in the North China Plain

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Pedosphere 2024年第1期34卷 159-169页

作者： Shufang GUO Yitao ZHANG Limei ZHAI Jian liu Hongyuan WANG hongbin liu State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Key Laboratory of Nonpoint Source Pollution ControlMinistry of Agriculture and Rural AffairsInstitute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China Institute of Agricultural Environment and Resources Yunnan Academy of Agricultural SciencesKunming 650205China Shandong Yucheng Agro-ecosystem National Observation Research Station Key Laboratory of Ecosystem Network Observation and ModelingInstitute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China The Norwegian Institute of Bioeconomy Research(NIBIO) Akershus 1431Norway

The introduction of cover crops into monoculture systems to improve soil health has been widely adopted worldwide. However, little is known about the environmental risks and application prospects of different cover crops in spring maize(Zea mays L.) monocultures proposed in the North China Plain. A pot experiment was conducted to evaluate the effects of different winter cover crops on subsequent maize yield, soil fertility, and environmental risks of nitrogen(N) loss, and a questionnaire survey was conducted to examine factors influencing farmers' willingness to adopt cover crops in the North China Plain. Based on the same fertilization regime during the maize growing period, four winter cover crop treatments were set up, including bare fallow, hairy vetch(Vicia villosa Roth.), February orchid(Orychophragmus violaceus), and winter oilseed rape(Brassica campestris L.). The results indicated that winter cover crops significantly increased subsequent maize yield and soil organic carbon, total N, and microbial biomass carbon and N compared with the bare fallow *** incorporation of cover crops led to a negligible increase in nitrous oxide(N_(2)O) emissions and had a very limited effect on ammonia(NH_(3)) *** incorporation of February orchid and winter oilseed rape decreased nitrate leaching compared with the hairy vetch treatment in the maize growing *** N losses via N_(2)O and NH_(3) emissions and N leaching accounted for 71%–84% of the N surplus. However, yield increase and environmental benefits were not the main positive factors for farmers to accept cover crops. Financial incentive was rated by 83.9% of farmers as an “extremely important” factor, followed by other costs, when considering winter cover cropping. These results indicate that the environmental benefits depend on the type of cover crop. Maintaining high levels of soil fertility and maize yield, providing sufficient subsidies, and encouraging large-area cultivation of cover crops

关键词： cover crop N leaching NH_(3)emission N_(2)O emission spring maize willingness to accept

A novel deep learning framework with variational auto-encoder for indoor air quality prediction

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Frontiers of Environmental Science & Engineering 2024年第1期18卷 97-109页

作者： Qiyue Wu Yun Geng Xinyuan Wang Dongsheng Wang ChangKyoo Yoo hongbin liu Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037China College of Automation&College of Artificial Intelligence Nanjing University of Posts and TelecommunicationsNanjing 210023China Guangxi Key Laboratory of Clean Pulp&Papermaking and Pollution Control College of Light Industry and Food EngineeringGuangxi UniversityNanning 530004China Laboratory for Comprehensive Utilization of Paper Waste of Shandong Province Shandong Huatai Paper Co.Ltd.Dongying 257335China Department of Environmental Science and Engineering College of EngineeringKyung Hee UniversityYongin 446701Republic of Korea

Exposure to poor indoor air conditions poses significant risks to human health, increasing morbidity and mortality rates. Soft measurement modeling is suitable for stable and accurate monitoring of air pollutants and improving air quality. Based on partial least squares (PLS), we propose an indoor air quality prediction model that utilizes variational auto-encoder regression (VAER) algorithm. To reduce the negative effects of noise, latent variables in the original data are extracted by PLS in the first step. Then, the extracted variables are used as inputs to VAER, which improve the accuracy and robustness of the model. Through comparative analysis with traditional methods, we demonstrate the superior performance of our PLS-VAER model, which exhibits improved prediction performance and stability. The root mean square error (RMSE) of PLS-VAER is reduced by 14.71%, 26.47%, and 12.50% compared to single VAER, PLS-SVR, and PLS-ANN, respectively. Additionally, the coefficient of determination (R2) of PLS-VAER improves by 13.70%, 30.09%, and 11.25% compared to single VAER, PLS-SVR, and PLS-ANN, respectively. This research offers an innovative and environmentally-friendly approach to monitor and improve indoor air quality.

关键词： Indoor air quality PM_(2.5)concentration Variational auto-encoder Latent variable Soft measurement modeling

An investigation on micro pore structures and the vapor pressure mechanism of explosive spalling of RPC exposed to high temperature

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Science China(Technological Sciences) 2013年第2期56卷 458-470页

作者： JU Yang liu hongbin TIAN KaiPei liu JinHui WANG Li GE ZhiShun State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology Beijing Key Laboratory of Fracture and Damage Mechanics of Rocks and Concrete China University of Mining and Technology School of Mechanics and Civil Engineering China University of Mining and Technology

Reactive powder concrete （RPC） is vulnerable to explosive spalling when exposed to high temperature. The characteristics of micro pore structure and vapor pressure of RPC are closely related to the thermal spalling. Applying mercury intrusion po- rosimetry （MIP） and scanning electron microscopy （SEM） techniques, the authors probed the characteristics of micro pore structures of plain RPC200 when heated from 20-350~C. The pore characteristics such as specific pore volume, threshold pore size and most probable pore size varying with temperatures were investigated. A vapor pressure kit was developed to measure the vapor pressure and its variation inside RPC200 at various temperatures. A thin-wall spherical pore model was proposed to ana- lyze the thermo-mechanical mechanism of spalling, by which the stresses varying with the vapor pressure q（T） and the character- istic size of wall （K） at any point of interest were determined. It is shown that the pore characteristics including specific pore volume, average pore size, threshold pore size and most probable pore size rise significantly with the increasing temperature. 200~C appears to be the threshold temperature above which the threshold pore size and the most probable pore size climb up dramatically. The increase in the specific pore volume results from the growth both in quantity and in volume of the transition pores and the capillary pores. The appearance of the explosive spalling in RPC200 is mainly attributed to being unable to form pathways in favor of releasing water steam in RPC and to thin-wall sphere domain where the vapor pressure governs the the rapid accumulation of high vapor pressures as well. The spalling is bounded through the pore model.

关键词： reactive powder concrete (RPC) high temperature spalling pore structure vapor pressure microstructures mercuryintrusion porosimetry (MIP)