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IEEE/CAA Journal of Automatica Sinica 2024年第8期11卷 1836-1848页

作者： Wei Qian yanmin wu Bo Shen School of Electrical Engineering and Automation Henan Polytechnic UniversityJiaozuo 454000China College of Information Science and Technology Donghua UniversityShanghai 201620China

This article mainly investigates the fuzzy optimization robust control issue for nonlinear networked systems characterized by the interval type-2(IT2)fuzzy technique under a differential evolution *** provide a more reasonable utilization of the constrained communication channel,a novel adaptive memory event-triggered(AMET)mechanism is developed,where two event-triggered thresholds can be dynamically adjusted in the light of the current system information and the transmitted historical *** conditions with less conservative design of the fuzzy imperfect premise matching(IPM)controller are presented by introducing the Wirtinger-based integral inequality,the information of membership functions(MFs)and slack ***,under the IPM policy,a new MFs intelligent optimization technique that takes advantage of the differential evolution algorithm is first provided for IT2 TakagiSugeno(T-S)fuzzy systems to update the fuzzy controller MFs in real-time and achieve a better system control ***,simulation results demonstrate that the proposed control scheme can obtain better system performance in the case of using fewer communication resources.

关键词： Adaptive memory event-triggered(AMET) differential evolution algorithm fuzzy optimization robust control interval type-2(IT2)fuzzy technique.

地方政府债券柜台发行、融资挤占与财政投资政策有效性

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财贸经济 2024年第3期45卷 23-40页

作者：竹志奇武彦民史亚甜天津财经大学财税与公共管理学院财政系 300211 天津财经大学财税与公共管理学院 300211

自2019年起,地方政府债券可以通过柜台销售的方式面向个人投资者发行,这在一定程度上改善了商业银行持有地方政府债券对信贷资源的挤占,或对财政投资政策有效性产生积极影响。本文通过构建一个包含公共资本、公共消费与基建项目建设周期... 详细信息

自2019年起,地方政府债券可以通过柜台销售的方式面向个人投资者发行,这在一定程度上改善了商业银行持有地方政府债券对信贷资源的挤占,或对财政投资政策有效性产生积极影响。本文通过构建一个包含公共资本、公共消费与基建项目建设周期的G-K框架DSGE模型,研究了地方政府债券柜台发行对财政投资政策有效性的影响及其作用机制,主要结论为:(1)在商业银行持有地方政府债券的条件下,财政投资政策会通过挤占商业银行信贷资源产生挤出效应;(2)地方政府债券的柜台发行会在一定程度上缓解政府投资带来的挤出效应,从而提高积极财政政策的有效性;(3)项目建设周期的延长在一定程度上有利于缓解融资挤占,从而提升政府财政投资政策的有效性。基于上述结论,本文建议进一步优化投资者结构,加大地方政府债券柜台发行工作力度;适度延长项目建设周期,更加审慎地使用债务筹集资金;强化地方政府债券的信用评级和市场化定价机制,提高地方政府债券的流动性和吸引力。

关键词：地方政府债券柜台发行融资挤占财政投资政策挤出效应

一类具有饱和恢复率的随机SIR传染病模型的持久性

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廊坊师范学院学报（自然科学版） 2024年第3期24卷 5-8,13页

作者：刘娟吴延敏蚌埠学院安徽蚌埠233030

在确定型模型的基础上,考虑随机因素,得到了一类具有饱和发生率的随机SIR模型。首先给出随机模型的正不变集,进而介绍持久性含义,利用Ito公式及强大数定律得到了疾病流行的充分性条件。结果表明,当白噪声强度满足一定的参数条件时,染病... 详细信息

在确定型模型的基础上,考虑随机因素,得到了一类具有饱和发生率的随机SIR模型。首先给出随机模型的正不变集,进而介绍持久性含义,利用Ito公式及强大数定律得到了疾病流行的充分性条件。结果表明,当白噪声强度满足一定的参数条件时,染病类群体不会消失,这对于控制疾病的蔓延是不利的。

关键词：随机SIR模型饱和恢复率正不变集 Ito公式

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全面抗战时期党在灾荒防治工作中的社会动员——以两大红色报刊相关报道为中心的考察

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郑州航空工业管理学院学报（社会科学版） 2024年第2期43卷 12-20页

作者：武艳敏李畅郑州大学马克思主义学院河南郑州450001

社会动员是党在全面抗战时期开展灾荒防治工作时所使用的重要方法,在生产备荒和灾后救济等环节发挥了巨大的作用。党和政府创造性地运用了组织动员、示范动员、竞争动员和资源动员等动员方式,发动根据地的男女老幼参与开荒耕种、灭蝗、... 详细信息

社会动员是党在全面抗战时期开展灾荒防治工作时所使用的重要方法,在生产备荒和灾后救济等环节发挥了巨大的作用。党和政府创造性地运用了组织动员、示范动员、竞争动员和资源动员等动员方式,发动根据地的男女老幼参与开荒耕种、灭蝗、兴修水利、抢种抢收和手工业副业生产等一系列灾荒防治工作。党和政府的社会动员工作不仅保障了根据地的生产、预防了灾荒发生、减轻了灾荒的破坏,同时也在社会上起到了移风易俗的作用,在精神和物质的双重意义上促进了革命事业的发展,为抗日战争的胜利做出了贡献。

关键词：中国共产党全面抗战时期社会动员防治灾荒红色报刊

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真菌诱导子调控紫草素合成的分子机制探究

中国农业科技导报 2024年第1期26卷 78-88页

作者：李相吴刘自扬徐玉俊祝建波吴燕民石河子大学生命科学学院新疆石河子832003 中国农业科学院生物技术研究所北京100081 兰州大学草地农业科技学院兰州大学农业农村部草牧业创新重点实验室兰州730020

为探讨真菌诱导子调控紫草素合成的分子机制,以新疆紫草无菌苗为试材,经尖孢镰刀菌、立枯丝核菌制备成的诱导子生物诱导后,对其根部进行RNA测序和分析。结果表明,与对照组比较,尖孢镰刀菌试验组差异表达基因1735个;立枯丝核菌试验组差... 详细信息

为探讨真菌诱导子调控紫草素合成的分子机制,以新疆紫草无菌苗为试材,经尖孢镰刀菌、立枯丝核菌制备成的诱导子生物诱导后,对其根部进行RNA测序和分析。结果表明,与对照组比较,尖孢镰刀菌试验组差异表达基因1735个;立枯丝核菌试验组差异表达基因1043个。GO(gene ontology)分析发现,2个试验组差异表达基因主要富集在细胞过程、细胞组分中膜和分子功能中催化活性等生物学过程。KEGG(kyoto encyclopedia of genes and genomes)分析发现,2个试验组在植物与病原菌互作、植物激素信号转导途径和苯丙素合成等通路均有大量差异表达基因富集。2个试验组差异表达情况相同的转录因子主要包括bHLH、AP2/ERF-ERF和LOB等,并发现参与紫草素合成及其正向调控的AeGHQH、AeDSH1、AeAP、AePAL、AeDI2、AePGT、AeHMGR、AeG10H基因在2个试验组均上调表达,其中尖孢镰刀菌试验组上调表达较显著。以上结果从分子水平探究了新疆紫草对真菌诱导子生物诱导的响应机制,为未来真菌诱导子应用于新疆紫草种植生产奠定了理论基础。

关键词：新疆紫草真菌诱导子转录组差异表达基因

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移动应急电源动态优化调度策略

舰船电子工程 2024年第1期44卷 164-170页

作者：王承山黄靖董笑佟吴艳敏海军工程大学电气工程学院武汉430033

以含分布式电源的电力系统为研究对象,利用移动应急电源的移动供电能力和固定式储能装置的临时供电能力,保证多个孤岛区域重要负荷的供电连续性和可靠性。以最大化负荷恢复量以及最小化停电损失为目标构建了移动应急电源的动态优化调度... 详细信息

以含分布式电源的电力系统为研究对象,利用移动应急电源的移动供电能力和固定式储能装置的临时供电能力,保证多个孤岛区域重要负荷的供电连续性和可靠性。以最大化负荷恢复量以及最小化停电损失为目标构建了移动应急电源的动态优化调度模型。同时,对原有和声搜索算法进行改进,提出了一种改进自适应搜索和声算法。最后通过案例分析验证了提出的改进自适应搜索和声算法的有效性和优越性。

关键词：分布式电源储能极端天气移动应急电源优化调度

Leakage of nuclear material powder from pressure container through a small orifice

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Particuology 2014年第3期12卷 117-123页

作者： Longbo Liu yanmin wu Yongyang Su Hanbing Tang Zhihong Zhang Ping Huang Lili Zhang Lixing Zhang Northwest Institute of Nuclear Technology

Because of the radioactivity and toxic nature of nuclear materials, their containment within oxide matrices, encased in sealed containers, has been proposed as a suitable means for storage and transportation. However, container failures because of cracks or small orifices present a major leakage risk for nuclear materials, consequently posing a significant hazard to the environment and human beings. In this study, terbium oxide powder was used as a nuclear material representative to examine the leakage of nuclear material powder through orifices located at the base of a pressure container. The dependence of the orifice diameter, the powder layer thickness, and the internal pressure of the container on the leakage mechanism and amount was examined. A simplified model correlating the dependence of the above-mentioned parameters to determine the utmost leakage amount was also developed based on the present results. The leakage of the nuclear material powder was assessed by measuring its concentration using an optical particle counter. The diameter of the orifice determined the powder leakage mechanism, which in turn influenced the amount of leakage produced. Comparison studies showed that unlike the changes in the differential pressure, the volume of the container has little effect on the leakage amount. Under sufficiently high internal pressures, the oxide powder can be released as a fine aerosol. The work is not only crucial from the nuclear safety aspect, but is also beneficial for the safe application of powder and nanoparticles.

关键词： Nuclear materials Powder Leakage Risk assessment

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深度学习在口腔影像分析中的应用

中国组织工程研究 2025年第11期29卷 2385-2393页

作者：杨予萱谭静怡周鹂鹂边子睿陈伊凡吴燕岷浙江大学医学院附属第二医院牙周病专科浙江省杭州市310009

背景:近年来深度学习技术越来越多地被运用于口腔医学领域,提高了口腔影像分析的效率及准确率,推动了口腔智能医学的迅速发展。目的:基于口腔影像,阐述深度学习在口腔疾病诊断和治疗方案决策方面的研究现状、优势与局限性,探讨深度学习... 详细信息

背景:近年来深度学习技术越来越多地被运用于口腔医学领域,提高了口腔影像分析的效率及准确率,推动了口腔智能医学的迅速发展。目的:基于口腔影像,阐述深度学习在口腔疾病诊断和治疗方案决策方面的研究现状、优势与局限性,探讨深度学习技术背景下口腔医学变革的新方向。方法:应用计算机检索PubMed数据库中2017年1月至2024年1月发表的深度学习在口腔医学影像领域应用的相关文献,检索词为“deep learning,artificial intelligence,stomatology,oral medical imaging”等,按入组标准筛选后最终纳入80篇文献进行综述。结果与结论:(1)经典的深度学习模型包括人工神经网络、卷积神经网络、递归神经网络和生成对抗网络等,学者们以或竞争或联合的形式运用这些模型,实现更高效的对口腔医学影像的解释。(2)在口腔医学领域,疾病诊断和治疗方案的制定在很大程度上依赖医学影像资料的判读,而深度学习技术拥有强大的图像处理能力,无论是在辅助诊断龋齿、根尖周炎、牙根纵裂、牙周病、颌骨囊肿等疾病方面,还是在辅助第三磨牙拔除术、颈淋巴结清扫术等治疗操作的术前评估方面,深度学习都能帮助临床医生提高决策的准确率与效率。(3)尽管深度学习有望成为口腔疾病诊治的重要辅助工具,但它在模型技术、安全伦理、法律监管方面仍有一定的局限性,未来的研究应侧重于证明深度学习的可推广性、稳健性和临床实用性,寻找将深度学习自动化决策支持系统应用于常规临床工作流程中的最佳方式。

关键词：深度学习口腔医学口腔影像疾病诊断口腔智能医学

Changes of free radicals and digestive enzymes in saliva in cases with deficiency inspleen-yin syndrome

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The Journal of Biomedical Research 2010年第3期24卷 250-255页

作者： Muxin Wei yanmin wu Dezheng Chen Yuchun Gu Department of Traditional Chinese Medicine the First Affiliated Hospital with Nanjing Medical University Nanjing 210029 Jingsu Province China

Objective：To explore the nature of deficiency in spleen-yin syndrome,which could provide scientific theoretical support and practical guidance for clinical Traditional Chinese Medicine（TCM）syndrome differentiation based on biology,and had a strong clinical ***：Serum Cu and Zn were detected by atomic absorption spectrophotometer,serum vitamin E by high performance liquid chromatography,serum vitamin C by 2,4-Dinitrophenylhydrazine Colorimetry,total superoxide dismutase（SOD）and Cu and Zn- SOD by the xanthine oxidase method,and malondialdehyde（MDA）by the 2-thiobarbituric acid method（TBA）.Total antioxidant capacity was detected by a colorimetry *** Activity was detected by an automatic biochemical *** was detected by lysozyme detection plate,the diameter of bacteriolysis circle was measured and the corresponding content of lysozyme was obtained from a table of standard curve ***： No significant difference in total SOD and Cu,Zn-SOD was found between deficiency in spleen-yin group and normal ***,such factors in deficiency in kidney-yin group were significantly lower than the other groups（P〈0.05）.The MDA content in both deficiency in spleen-yin group and deficiency in kidney-yin group were significantly higher than that of normal group（P〈0.05）,while the total antioxidant capacity was significantly lower than normal group（P〈0.05）.The vitamin E content in deficiency in kidney-yin group was significantly lower than that in the other two groups（P〈0.05）.No significant difference in the contents of vitamin C,Cu and Zn were observed in these *** Zn/Cu level in deficiency in kidney-yin group and the vitamin E level in deficiency in spleen-yin group decreased,but with no significant *** activity in unit time in cases with deficiency in spleen-yin was lower than and had significant differences with that in normal cases,and higher than that in cases with deficiency in *** sectional velocity

关键词： deficiency in spleen-yin deficiency in kidney-yin digestive enzymes in saliva amylase salivary lysozyme salivary flow rate free radicals

Ferroelectric BaTiO_(3) /Pr_(2)O_(3) heterojunction harvesting roomtemperature cold–hot alternation energy for efficiently pyrocatalytic dye decomposition

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Journal of Advanced Ceramics 2024年第1期13卷 44-52页

作者： Zheng wu Taosheng Xu Luohong Zhang Tingting Liu Zhansheng wu Gangqiang Zhu yanmin Jia School of Environmental and Chemical Engineering Xi’an Key Laboratory of Textile Chemical Engineering AuxiliariesXi’an Polytechnic UniversityXi’an 710048China School of Physics and Information Technology Shaanxi Normal UniversityXi’an 710062China

The strong pyrocatalytic dye decomposition of the BaTiO_(3)/Pr_(2)O_(3) heterojunction catalyst under cold–hot alternation conditions has been demonstrated in this *** pure BaTiO_(3) nanofibers,~54%rhodamine B(RhB)dye is decomposed under the cold–hot alternation of 29–57℃.With the loading content of Pr_(2)O_(3) increases from 0 to 4 wt%,the pyrocatalytic decomposition ratio of RhB solution increases first and then decreases,eventually achieving a maximum of 91%at 3 wt%.The enhanced pyrocatalytic performance after loading Pr_(2)O_(3) can be attributed to an internal electric field of the heterojunction,which effectively separates positive and negative *** strongly pyrocatalytic performance of BaTiO_(3)/Pr_(2)O_(3) makes it hopeful for applications in the dye wastewater treatment through harvesting the environmental cold–hot temperature alternation thermal energy in future.

关键词： pyroelectric materials BaTiO_(3) pyrocatalysis BaTiO_(3)/Pr_(2)O_(3)heterojunction dye decomposition