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Coordination game model of co-opetition relationship on cluster supply chains

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Journal of Systems Engineering and Electronics 2008年第3期19卷 499-506页

作者： Zhou Min Deng Feiqi wu sai Inst. of Systems Engineering South China Univ. of Technology Guangzhou 510640 P. R. China School of Economic Management Guangdong Univ. of Technology Guangzhou 510520 P. R. China

The research of cluster supply chains is a new direction and a hotspot of the industrial cluster theory. On the condition of the coordination game, the enterprises may be stuck on the non-efficient equilibrium status, which becomes an important problem that must be considered on cluster supply chains. A symmetrical coordination game model is constituted to describe the competition and cooperation relationship of the same-quality manufacturers on cluster supply chains. The methods of the non-cooperation game theory and the evolutionary game theory are respectively used to analyze the model, whose parameters＇ influences under each method are then compared. It can be concluded that the analysis of the evolutionary game theory is more realistic and practical. Finally, three approaches are considered to break away from being path-dependence locked-in non-efficient status during this coordination game evolutionary process, which provide the development of cluster supply chains with an effective forecasting and Pareto optimizing method.

关键词： cluster supply chains coordination game non-cooperation game theory evolutionary game theory,path-dependence.

新型碳基雷达吸波材料的制备及反射率性能仿真计算

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航空发动机 2025年第01期51卷 171-174页

作者：吴赛杨东方胡悦李业华赫丽华中国航发北京航空材料研究院

为了研制一种轻质薄层宽带吸波材料，采用抄纸法制备一种由短切碳纤维和短切玻璃纤维组成的超薄碳玻纸，将含有导电碳纤维的碳玻纸作为电损耗层与聚甲基丙烯酰亚胺（PMI）泡沫介质层交替粘接成型为多层复合吸波材料。通过对材料进行介... 详细信息

为了研制一种轻质薄层宽带吸波材料，采用抄纸法制备一种由短切碳纤维和短切玻璃纤维组成的超薄碳玻纸，将含有导电碳纤维的碳玻纸作为电损耗层与聚甲基丙烯酰亚胺（PMI）泡沫介质层交替粘接成型为多层复合吸波材料。通过对材料进行介电常数试验、反射率仿真计算以及反射率实测，开展材料的反射率各向异性研究，探索材料的反射率性能。结果表明：采用自由空间法试验的吸波材料的复合电磁参数模拟的反射率与材料实测反射率基本吻合；通过材料阻抗匹配设计的多层碳基材料均展现了优异的吸波性能，材料在8～18 GHz的反射率均小于-10 dB，吸波效能大于90%，其中当PMI泡沫厚度为2 mm、碳纤维质量分数分别为0.01%、0.15%、0.20%时，多层复合吸波材料吸收性能最优，最大反射率为-28.03dB@15.73 GHz；短切碳纤维在碳玻纸中分散均匀，材料反射率各向异性小。

关键词：碳基雷达吸波材料反射率短切碳纤维碳玻纸电损耗层抄纸法阻抗匹配

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Vascular protective effects of aqueous extracts of Tribulus terrestris on hypertensive endothelial injury

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Chinese Journal of Natural Medicines 2017年第8期15卷 606-614页

作者： JIANG Yue-Hua GUO Jin-Hao wu sai YANG Chuan-Hua Affiliated Hospital of Shandong University of Traditional Chinese Medicine Jinan 250011China Shandong University of Traditional Chinese Medicine Jinan 250355China Qingdao Hiser medical group Qingdao 266034China

Angiotensin Ⅱ(Ang Ⅱ) is involved in endothelium injury during the development of hypertension. Tribulus terrestris(TT) is used to treat hypertension, arteriosclerosis, and post-stroke syndrome in China. The present study aimed to determine the effects of aqueous TT extracts on endothelial injury in spontaneously hypertensive rats(SHRs) and its protective effects against Ang Ⅱ induced injury in human umbilical vein endothelial cells(HUVECs). SHRs were administered intragastrically with TT(17.2 or 8.6 g·kg^(-1)·d^(-1)) for 6 weeks, using valsartan(13.5 mg·kg^(-1)·d^(-1)) as positive control. Blood pressure, heart rate, endothelial morphology of the thoracic aorta, serum levels of Ang Ⅱ, endothelin^(-1)(ET^(-1)), superoxide dismutase(SOD) and malonaldehyde(MDA) were measured. The endothelial injury of HUVECs was induced by 2 × 10–6 mol·L^(-1) Ang Ⅱ. Cell Apoptosisapoptosis, intracellular reactive oxygen species(ROS) was assessed. Endothelial nitric oxide synthase(eN OS), ET^(-1), SOD, and MDA in the cell culture supernatant and cell migration were assayed. The expression of hypertension-linked genes and proteins were analyzed. TT decreased systolic pressure, diastolic pressure, mean arterial pressure and heart rate, improved endothelial integrity of thoracic aorta, and decreased serum leptin, Ang Ⅱ, ET^(-1), NPY, and Hcy, while increased NO in SHRs. TT suppressed Ang Ⅱ-induced HUVEC proliferation and apoptosis and prolonged the survival, and increased cell migration. TT regulated the ROS, and decreased mR NA expression of Akt1, JAK2, PI3Kα, Erk2, FAK, and NF-κB p65 and protein expression of Erk2, FAK, and NF-κB p65. In conclusion, TT demonstrated anti-hypertensive and endothelial protective effects by regulating Erk2, FAK and NF-κB p65.

关键词： Tribulus Terrestris Hypertension Endothelial protection

家蚕小茧突变体sc生长发育相关通路差异表达基因转录分析

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昆虫学报 2025年第1期68卷 1-13页

作者：吴赛王闪闪赵巧玲朱娟王梅仙唐顺明沈兴家江苏科技大学生物技术学院江苏省蚕桑与畜禽生物技术重点实验室镇江212100 中国农业科学院桑蚕科学研究中心农业农村部蚕桑遗传改良重点实验室镇江212100

【目的】航天蚕Bombyx mori后代小茧突变体sc的幼虫发育缓慢,食桑量少,推测其生长发育相关通路基因受到基因突变的影响。前期研究表明,sc突变受一对位于家蚕第3连锁群的隐性基因控制,但其控制基因并未被鉴定。本研究拟通过比较分析sc与... 详细信息

【目的】航天蚕Bombyx mori后代小茧突变体sc的幼虫发育缓慢,食桑量少,推测其生长发育相关通路基因受到基因突变的影响。前期研究表明,sc突变受一对位于家蚕第3连锁群的隐性基因控制,但其控制基因并未被鉴定。本研究拟通过比较分析sc与航天蚕后代正常茧品系TG的转录组数据,为sc突变体相应基因的鉴定及分子机制的解析提供参考。【方法】分别取sc和TG 5龄第4天幼虫的头部和中肠组织进行转录组测序(RNA-seq),并通过比较转录组分析获得差异表达基因(differentially expressed genes,DEGs),对DEGs进行GO注释和KEGG富集分析。利用qRT-PCR验证随机选取的DEGs在sc和TG中的表达量。此外,利用qRT-PCR调查感兴趣基因在sc中的表达量。【结果】TG vs sc比较组头部检测到1528个DEGs,其中820个上调表达,708个下调表达;TG vs sc比较组中肠检测到1401个DEGs,其中683个上调表达,718个下调表达。GO分析表明头部和中肠DEGs在生物学过程中,大多数DEGs参与细胞过程、代谢过程、生物调节和刺激反应等;在分子功能中,大多数DEGs参与结合、催化活性、结构分子活性、转运蛋白活性和ATP依赖活性等。头部和中肠DEGs均涉及Hippo,Insulin和mTOR等与家蚕生长发育相关的信号通路。qRT-PCR分析显示,基因的表达趋势与转录组测序结果一致;与TG相比,sc中生长发育相关通路中BMSK0008105,BMSK0009907,BMSK0002689,BMSK0000286,BMSK0012340和BMSK00083629等关键基因差异表达。【结论】sc和TG中生长发育相关的信号通路关键基因的差异表达,通过影响生长发育过程中的能量代谢、器官发生和细胞生长、增殖及凋亡等生理过程,进而影响小茧突变体sc的体型发育。研究结果有助于阐明sc突变体形成的分子机制,并为家蚕体型调控研究积累实验数据。

关键词：家蚕航天蚕小茧突变体转录组测序差异表达基因功能注释

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Ultrasound-induced elevation of interlayer spacing and conductivity of CoNi hydroxides for high-performance Ni–Zn batteries

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Chinese Chemical Letters 2023年第7期34卷 294-297页

作者： Hongxuan Tang Jiujiu Ge Lanze Li Xinqiang Zhu sai wu Fan Wang Yajun Pang Zhehong Shen Cao Guan Hao Chen College of Chemistry and Materials Engineering Zhejiang A&F UniversityHangzhou 311300China Institute of Flexible Electronics Northwestern Polytechnical UniversityXi'an 710072China School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China

Nickel–zinc(Ni–Zn) batteries hold a lot of promise for energy storage thanks to their high output voltage, plentiful Zn supply, and low toxicity. Achieving the facile preparation of high-performance cathodes at ambient temperature remains a challenge, it is however essential for practical applications. Here, in the present study, an efficient ultrasound-assisted one-step fabrication of CoNi double hydroxide(UACoNi DH) microspheres at room temperature that performs well as a cathode for Ni–Zn batteries was proposed. This designed ultrasound-assisted method induces the formation of metal double hydroxide with an elevation of interlayer spacing and bulk conductivity while maintaining the structure features of CoNi DH prepared without ultrasound assistance. As a result, the UA-CoNi DH as an electrode material displays highly enhanced electrochemical properties relative to CoNi DH prepared without ultrasound assistance. Benefitting from the improved performance of our UA-CoNi DH electrode, the Ni–Zn battery with UA-CoNi DH as the cathode(UA-CoNi DH//Zn) delivers a good specific capacity(202.36 mAh/g) and rate performance(70.49% capacity maintained at a 10-fold higher current), presenting more than 71.61%and 21.99% improvement relative to the CoNi DH//Zn battery, respectively. This work offers guidelines for constructing high-performance Ni–Zn battery cathodes in an open environment.

关键词： Ni–Zn batteries Cathodes Metal hydroxide Interlayer spacing Ultrasound-assisted method Room temperature

Complex integrity constraint discovery: measuring trust in modern intelligent railroad systems

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2022年第10期23卷 832-837页

作者： Wen-tao HU Da-wei JIANG sai wu Ke CHEN Gang CHEN Key Lab of Intelligent Computing Based Big Data of Zhejiang Province Zhejiang UniversityHangzhou 310027China

1Introduction Data are at the heart of intelligent rail systems in the high-speed transportation sector(Zhou et al.,2020;Ho et al.,2021;Hu et al.,2021;Chen et al.,2022).The core of modern intelligent railroad systems typically includes rail transportation and equipment monitoring models learned from large datasets,which are often optimized for specific data and workloads(Zhu et al.,2019;Tan et al.,2020).While these intelligent railroad systems have been widely adopted and successful,their reliability and proper function will change as the data used *** the data used(on which the system operates)deviates from the fundamental constraints of the initial data(on which the system is trained)then,in that case,the system performance degrades,and the results inferred by the system model become unreliable,so the system model must be retrained and redeployed to re-store reliable inference results(Sharma and Chandel,2013).The mechanism for assessing the trustworthiness of intelligent rail system inferences is of paramount importance,especially for rail systems performing safety-critical or high-impact operations.

关键词： constraint intelligent operations

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一类随机大系统的自适应有界镇定

华南理工大学学报（自然科学版） 2007年第1期35卷 7-12页

作者：武赛邓飞其华南理工大学自动化科学与工程学院广东广州510640

研究了一类具有严反馈形式、含有有界不确定参数的非线性随机大系统的镇定问题,在充分考虑各子系统之间互联项影响的基础上,设计了这类组合系统的状态观测器,再运用反步法技术,通过构造四次型随机控制Lyapunov函数,设计出一种自适应输... 详细信息

研究了一类具有严反馈形式、含有有界不确定参数的非线性随机大系统的镇定问题,在充分考虑各子系统之间互联项影响的基础上,设计了这类组合系统的状态观测器,再运用反步法技术,通过构造四次型随机控制Lyapunov函数,设计出一种自适应输出反馈分散控制器.在此控制器作用下,所考虑的闭环、互联非线性随机大系统实现了概率意义下的有界稳定.仿真结果表明了该控制算法的有效性.

关键词：非线性随机大系统自适应控制分散控制有界稳定

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一种新型的非线性随机大系统自适应镇定方法

系统工程与电子技术 2007年第4期29卷 593-597页

作者：武赛邓飞其华南理工大学自动化科学与工程学院广东广州510640

研究了一类具有严反馈形式并含有Wiener噪声扰动的非线性随机大系统,其互联项满足线性增长约束。利用微分几何的理论,应用Backstepping算法,基于Lyapunov稳定性理论,选择了适合这类组合非线性系统的状态观测器,设计了自适应输出反馈分... 详细信息

研究了一类具有严反馈形式并含有Wiener噪声扰动的非线性随机大系统,其互联项满足线性增长约束。利用微分几何的理论,应用Backstepping算法,基于Lyapunov稳定性理论,选择了适合这类组合非线性系统的状态观测器,设计了自适应输出反馈分散控制律和自适应律,使得闭环,互联的非线性随机大系统实现了概率意义下的全局稳定,仿真结果表明了控制算法的有效性。

关键词：非线性随机大系统自适应控制分散控制输出反馈

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因势利导:高职院校学生阅读现状与对策

图书馆杂志 2014年第4期33卷 48-51页

作者：吴赛娥广州大学市政技术学院图书馆

调查并分析了"90后"高职学生的阅读现状和影响因素,开展针对性研究,因势利导做好高职学生阅读服务工作,提出相关对策与操作方法,以期培养学生的阅读能力,提高学生的综合素质和实践能力,适应经济社会的高速发展。

关键词：图书馆 90后高职生阅读现状影响因素阅读引导对策方法