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Journal of Applied Mathematics and Physics 2024年第6期12卷 2007-2019页

作者： Jianping Wang shenghua zou Zhicai Guo The Department of Basic Course Education Jian College Jian China

In this article, the transmission dynamics of a Hand-Foot-Mouth disease model with treatment and vaccination interventions are studied. We calculated the basic reproduction number and proved the global stability of disease-free equilibrium when R0 R0 > 1. Meanwhile, we obtained the optimal control strategies minimizing the cost of intervention and minimizing the infected person. We also give some numerical simulations to verify our theoretical results.

关键词： Hand-Foot-Mouth Disease Optimal Control Transmission Dynamic Vaccination Interventions

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水平同心圆柱环内自然对流换热研究

应用力学学报 2024年第1期41卷 206-215页

作者：杨万鑫邹声华李文菁胡琦湖南科技大学土木工程学院湘潭411201 湖南省建筑设计院集团股份有限公司长沙410000 湖南工程学院建筑工程学院湘潭411104

外壁温度高于内壁温度的水平同心圆柱环形结构因具有良好的隔热效果,在工程上得到了广泛的应用,而水平同心圆柱环形结构的隔热降温效果受环内流体流动换热影响大,且目前缺乏外壁温度高于内壁温度的水平同心圆柱环内自然对流换热特性研究... 详细信息

外壁温度高于内壁温度的水平同心圆柱环形结构因具有良好的隔热效果,在工程上得到了广泛的应用,而水平同心圆柱环形结构的隔热降温效果受环内流体流动换热影响大,且目前缺乏外壁温度高于内壁温度的水平同心圆柱环内自然对流换热特性研究,因此针对外壁温度高于内壁温度的水平同心圆柱环形结构,数值模拟研究了普朗特数为0.7情况下间隙比(内圆直径与环间距之比,即δ)在0.1~14以及瑞利数在103~107时环内自然对流流动模式与传热。使用流线和等温线分别表示出计算的流动模式和温度场,并研究了间隙比和瑞利数对圆柱环内壁面的平均努谢尔特数的影响。研究发现:在低瑞利数时整个间隙比范围内都存在稳定的月牙形流型,此外还观察到4种不同的流动模式,即二维漏斗振荡流、三维螺旋流、二维多涡流、二维多涡振荡流。这4种流动模式在较高的瑞利数时出现,具体取决于间隙比。根据流动模式的分布特征,整个间隙比可分为3部分,即宽间隙(δ=0.1~2)、中等间隙(δ=2~8)和窄间隙(δ=8~14),给出了不同间隙比范围内环内壁面平均努谢尔特数与间隙比和瑞利数的相关方程,其相关系数(R^(2))大于0.990 2。

关键词：水平同心圆柱环数值模拟自然对流流动模式传热

The Stochastic Coupling of SLE on the Strip Domain

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Journal of Applied Mathematics and Physics 2020年第9期8卷 1896-1910页

作者： shenghua zou The Department of Basic Course Education Ji’an College Ji’an China

The main work of this paper is to discuss the stochastic coupling of stirp SLEk (k ∈ (0,4]) on the stirp region Sπ. By constructing a bounded continuous local martingale, we prove that when a certain ordinary differential equation is satisfied, there is a coupling of two strip SLEk traces in Sπ;one is from a to b;the other is from b to a, such that the two curves visit the same set of points.

关键词： Strip SLEk SLEk Trace Stochastic Coupling

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析提高灌浆防火效果的途径

湘潭矿业学院学报 1994年第3期9卷 11-16页

作者：邹声华

本文从浆液输送时阻力与动力的匹配，泥浆灌注后在采空区中的分布以及浆材对泥浆分布的影响等方面对黄泥灌浆效率不高、防火效果不好进行了分析。得出要提高灌浆的效率必须有合理的动力与阻力匹配，要提高灌浆的效果，就必须在保证浆材... 详细信息

本文从浆液输送时阻力与动力的匹配，泥浆灌注后在采空区中的分布以及浆材对泥浆分布的影响等方面对黄泥灌浆效率不高、防火效果不好进行了分析。得出要提高灌浆的效率必须有合理的动力与阻力匹配，要提高灌浆的效果，就必须在保证浆材质量的前提下，以合理的灌浆方式和合理的灌浆量来保证灌浆质量，从而达到灌浆应具有的效果。图３，表１，参１。

关键词：灌浆效率灌浆防火矿山防火

Dynamic of Non-Autonomous Vector Infectious Disease Model with Cross Infection

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American Journal of Computational Mathematics 2020年第4期10卷 591-602页

作者： Weiwei Ji shenghua zou Jishang Liu Quanben Sun Lijun Xia Department of Basic Course Education Ji’an College Ji’an China

In the article, we established a non-autonomous vector infectious disease model, studied the long-term dynamic behavior of the system, and obtained sufficient conditions for the extinction and persistence of infectiou... 详细信息

关键词： Non-Autonomous Seasonal Variability Vector Infectious Disease

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深井降温系统管道结垢微观机理

化工学报 2016年第9期67卷 3936-3945页

作者：韩巧云杨晓杰邹声华湖南科技大学土木工程学院湖南湘潭411201 中国矿业大学(北京) 深部岩土力学与地下工程国家重点实验室北京100083 中国矿业大学(北京)力学与建筑工程学院北京100083

以深部矿井降温系统管道内壁出现的结垢问题为研究对象,首先采集管道水样进行水质全分析测试,确定管道内成垢性离子并建立化学及数学模型,其次采用第一性原理计算方法研究得到了深部矿井降温系统管道结垢微观机理。结果表明,深井降温系... 详细信息

以深部矿井降温系统管道内壁出现的结垢问题为研究对象,首先采集管道水样进行水质全分析测试,确定管道内成垢性离子并建立化学及数学模型,其次采用第一性原理计算方法研究得到了深部矿井降温系统管道结垢微观机理。结果表明,深井降温系统管道内壁结垢过程包括Ca^(2+)和CO_3^(2-)的结合结晶及MgCO_3、CaSO_4转化为CaCO_3的转化;理论分析及第一性原理计算结果表明,深井降温系统管道内壁结垢的主要影响因素为成垢性离子(Ca^(2+)、HCO^-_3、Mg^(2+)和SO^(2-)_4,且Mg^(2+)和SO^(2-)_4的存在会抑制碳酸钙结垢的产生。该研究对于深部高温热害矿井的降温系统的结垢产生机制以及采取合理的防、除垢措施,保障良好的矿井降温效果和安全生产具有理论指导意义。

关键词：结垢表面吸附数值分析密度泛函理论

Optimization Study of Outburst Prevention Measures for Tuzhu Coal Mine Based on Fixed Weight Clustering Analysis

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Journal of Geoscience and Environment Protection 2016年第1期4卷 153-161页

作者： Wenke Luo Shiliang Shi Yi Lu shenghua zou Zaian Chen Liliang Chen Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines Xiangtan China School of Energy and Safety Engineering Hunan University of Science and Technology Xiangtan China Jinzhushan Mining Company of Hunan Coal Group Lenshuijiang China Baishanping Mining of Hunan Black Gold Era Co. LTD Leiyang China

Affected by many involved factors, different dimensions, data with large difference, incomplete information and so on, the most optimal selection of regional outburst prevention measures for outburst mine has become a complicated system project. The traditional way of outburst prevention measure selection belongs to qualitative method, which may cause high-cost of gas control, huge quantities of drilling work, long construction time and even secondary disaster. To solve the above-mentioned problems, in light of occurrence status of coal seam gas in No. 21 mining area of Jinzhushan Tuzhu Mine, through grey fixed weight clustering theory and a combination method of qualitative and quantitative analysis, the judging model with multi-objective classification for optimization of outburst prevention measures was established. The three weight coefficients of outburst prevention technology scheme are sorted, in order to determine the advantages and disadvantages of each outburst prevention technology scheme under the comprehensive evaluation of multi-target. Finally, the problem of quantitative selection for regional outburst prevention technology scheme is solved under the situation of multi-factor mode and incomplete information, which provides reasonable and effective technical measures for prevention of coal and gas outburst disaster.

关键词： Coal-Gas Outburst Grey Theory Fixed Weight Clustering Analysis Regional Outburst Prevention Measures

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铁路空调硬卧车内气流分布的数值模拟

应用力学学报 2006年第1期23卷 132-136页

作者：张登春邹声华翁培奋湖南科技大学湘潭411201 上海大学上海200072

建立了铁路空调硬卧车内CFD仿真模型,对车厢内流场、温度场和热舒适性评价指标进行了分析。采用稳态不可压缩雷诺时均N-S方程、k-ε湍流模型,应用控制容积法和交错网格进行离散。计算了空调硬卧车内三维空气流场和温度场,并与实验结果... 详细信息

建立了铁路空调硬卧车内CFD仿真模型,对车厢内流场、温度场和热舒适性评价指标进行了分析。采用稳态不可压缩雷诺时均N-S方程、k-ε湍流模型,应用控制容积法和交错网格进行离散。计算了空调硬卧车内三维空气流场和温度场,并与实验结果进行了对照,两者吻合较好。在此基础上分析了车厢内人体热舒适性,结果表明车厢中部和端部铺位PMV分布不同,端部人体热舒适感较好,中部较差;而且同一计算断面不同铺位的人体热舒适感差异较大:上铺有较大区域PMV1.0,人体感觉偏暖。

关键词：硬卧车厢气流分布计算流体动力学数值模拟

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翻车机粉尘治理研究与实践

环境工程 2008年第5期26卷 25-27页

作者：李刚邹声华湖南科技大学能源与安全工程学院湖南湘潭411201

揭示翻车机翻卸物料的产尘机理,通过理论分析和计算机模拟,分析翻车机翻卸物料时产生的气流及其分布。详细介绍翻车机粉尘污染治理的新思路、新方法。结果表明:采用通风喷雾降尘方法对于翻车机粉尘综合治理更为有效。将该方案应用于某... 详细信息

揭示翻车机翻卸物料的产尘机理,通过理论分析和计算机模拟,分析翻车机翻卸物料时产生的气流及其分布。详细介绍翻车机粉尘污染治理的新思路、新方法。结果表明:采用通风喷雾降尘方法对于翻车机粉尘综合治理更为有效。将该方案应用于某钢铁企业的翻车机粉尘治理中,取得了良好的降尘效果,实现了高效、可持续发展的安全生产。

关键词：翻车机产尘机理数值模拟粉尘治理降尘效果

Icaritin inhibits the progression of urothelial cancer by suppressing PADI2-mediated neutrophil infiltration and neutrophil extracellular trap formation

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Acta Pharmaceutica Sinica B 2024年第9期14卷 3916-3930页

作者： Zezhong Mou Yiling Chen Jinzhong Hu Yun Hu Lujia zou Xinan Chen shenghua Liu Qiuping Yin Jian Gong Shuchen Li Shanhua Mao Chenyang Xu Haowen Jiang Department of Urology Huashan HospitalFudan UniversityShanghai 200040China Fudan Institute of Urology Fudan UniversityShanghai 200040China National Clinical Research Center for Aging and Medicine Fudan UniversityShanghai 200040China

Tumor relapse and metastasis are the major causes of mortality associated with urothelial *** the tumor microenvironment,negative regulatory molecules and various immune cell subtypes suppress antitumor *** inflammatory microenvironment,associated with neutrophils and neutrophil extracellular traps(NETs),promotes tumor ***,no drugs are currently available to specifically inhibit neutrophils and *** this study,we first demonstrated that icaritin(ICT),a Chinese herbal remedy that is a first-line treatment for advanced and incurable hepatocellular carcinoma,reduces NETs caused by suicidal NETosis and prevents neutrophil infiltration in the tumor ***,ICT binds to and inhibits the expression of PADI2 in neutrophils,thereby suppressing PADI2-mediated histone ***,ICT inhibits ROS generation,suppresses the MAPK signaling pathway,and inhibits NET-induced tumor ***,ICT inhibits tumoral PADI2-mediated histone citrullination,which consequently suppresses the transcription of neutrophil-recruiting genes such as GM-CSF and *** downregulation of IL-6 expression,in turn,forms a regulatory feedback loop through the JAK2/STAT3/IL-6 *** a retrospective study of clinical samples,we found a correlation between neutrophils,NETs,UCa prognosis,and immune *** ICT with immune checkpoint inhibitors may have synergistic *** summary,our study demonstrated that ICT could be a novel inhibitor of NETs and a novel UCa treatment.

关键词： Icaritin Neutrophil Neutrophil extracellular trap PADI2 Urothelial cancer