检索结果-南通市图书馆

Identifying the interactions in a colored dynamical network

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2015年第11期24卷 77-80页

作者：吴召艳弓晓利 College of Mathematics and Information Science Jiangxi Normal University

The interactions of a colored dynamical network play a great role in its dynamical behaviour and are denoted by outer and inner coupling matrices. In this paper, the outer and inner coupting matrices are assumed to be unknown and need to be identified. A corresponding network estimator is designed for identifying the unknown interactions by adopting proper adaptive laws. Based on the Lyapunov function method and Barbalat＇s lemma, the obtained result is analytically proved. A colored network coupled with chaotic Lorenz, Chen, and lii systems is considered as a numerical example to illustrate the effectiveness of the proposed method.

关键词： colored network interaction identification

Enhanced light Narrow Transmission through Cascaded Metallic Structure with Periodic Aperture Arrays

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2012年第10期29卷 186-189页

作者： YANG Hong-Yan ZHONG Yan-Ru xiao gong-li ZHANG Zhen-Rong School of Computer Science and Engineering Guilin University of Electronic TechnologyGuilin 541004 School of Information and Communication Guilin University of Electronic TechnologyGuilin 541004 School of Computer Electronic and InformationGuangxi UniversityNanning 530004

We present experimental and numerical studies on the enhanced light narrow transmission through cascaded Au/SiO_(x)N_(y)/Au aperture arrays by varying the refractive index and thickness of SiO_(x)N_(y).It is found that the enhancement as well as narrowing of the optical transmission originates from the coupling role of surface plasmon *** results indicate that the transmission enhancement is highly dependent on the refractive index and thickness of SiO_(x)N_(y).A higher transmission efficiency and narrower peak are obtained in Au/SiO_(2).1N0.3/Au structure with a small refractive index(1.6)and thin thickness(0.2μm).

关键词： 2μm refractive narrow

Higher-order dynamic effects of uncertainty risk under thick-tailed stochastic volatility

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Financial Innovation 2022年第1期8卷 1716-1737页

作者： xiao-li gong Jin-Yan Lu Xiong Xiong Wei Zhang School of Economics Qingdao UniversityQingdao 266061China College of Management and Economics Tianjin UniversityTianjin 300072China China Center for Social Computing and Analytics Tianjin 300072China

Sudden and uncertain events often cause cross-contagion of risk among various sectors of the *** paper introduces the stochastic volatility shock that follows a thick-tailed Student’s t-distribution into a high-order approximate dynamic stochastic general equilibrium(DSGE)model with Epstein–Zin preference to better analyze the dynamic effect of uncertainty risk on ***,the high-dimensional DSGE model(DSGE-SV-t)is developed to examine the impact of uncertainty risk on the transmission mechanism among macroeconomic *** empirical research found that uncertainty risk generates heterogeneous impacts on macroeconomic dynamics under different inflation levels and economic *** them,a technological shock has the strongest impact on employment and consumption *** crowding-out effect of a fiscal policy stimulus on consumption and private investments is relatively weakened when considering uncertainty risk but is more pronounced during periods of high *** risk can partly explain the decline in investments and the increase in interest rates and employment rates,given the impact of an agent’s risk *** with external economic conditions,the inflation factor has a stronger impact on the macro transmission mechanism caused by uncertainty risk.

关键词： Uncertainty risk High-dimensional DSGE Epstein-Zin preferences Stochastic volatility Thick tail distribution

Cluster synchronization in community network with nonidentical nodes via intermittent pinning control

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2015年第4期24卷 100-105页

作者：甘璐伊宁吴召艳弓晓利 College of Mathematics and Information Science Jiangxi Normal University

In this paper, cluster synchronization in community network with nonidentical nodes is investigated. By combining intermittency with a pinning control scheme, some effective controllers are designed. In the control scheme, only one node in each community is controlled and coupling weights of a spanning tree in each community are enhanced. Based on the Lyapunov function method and mathematical analysis technique, two results for achieving cluster synchronization are obtained. Noticeably, by introducing an adaptive strategy, some universal adaptive intermittent pinning controllers are designed for different networks. Finally, two numerical simulations are performed to verify the correctness of the derived results.

关键词： cluster synchronization community network intermittent pinning control

Perineural invasion status, Gleason score and number of positive cores in biopsy pathology are predictors of positive surgical margin following laparoscopic radical prostatectomy

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2017年第4期19卷 468-472页

作者： Rong Yang Kai Cao Tao Han Yi-Feng Zhang Gu-Tian Zhang lin-Feng XU Hui-Bo lian xiao-gong li Hong-Qian Guo Department of Urology Affiliated Drum Tower Hospital of Nanjing University Medical School Nanjing 210008 China Department of Urology Nanjing Children's Hospital Nanjing 210008 China Department of Pathology Affiliated Drum Tower Hospital of Nanjing University Medical School Nanjing 210008 China

This study was designed to define possible preoperative predictors of positive surgical margin after laparoscopic radical prostatectomy. We retrospectively analyzed the records of 296 patients with prostate cancer diagnosed by prostate biopsy, and eventually treated with laparoscopic radical prostatectomy. The prognostic impact of age, prostate volume, preoperative prostate-specific antigen, biopsy Gleason score, maximum percentage tumor per core, number of positive cores, biopsy perineurat invasion, capsule invasion on imaging, and tumor laterality on surgical margin was assessed. The overall positive surgical margin rate was 29.1%. Gleason score, number of positive cores, perineural invasion, tumor laterality in the biopsy specimen, and prostate volume significantly correlated with risk of positive surgical margin by univariate analysis （P 〈 0.05）. Gleason score （odds ratio [OR] = 2.286, 95% confidence interval [95% CI] = 1.431-3.653, P= 0.001）, perineural invasion （OR = 4.961, 95% CI = 2.656-9.270, P〈 0.001）, and number of positive cores （OR = 4.403, 95% CI = 1.878-10.325, P = 0.001） were independent predictors of positive surgical margin at the multivariable logistic regression analysis. Patients with perineural invasion, higher biopsy Gleason scores and/or a large number of positive cores in biopsy pathology had more possibility of capsule invasion. The positive surgical margin rate in patients with capsule invasion （49.5%） was much higher than that with localized disease （17.8%）. In contrast, prostate volume showed a protective effect against positive surgical margin （OR = 0.572, 95% CI = 0.346-0.945, P = 0.029）. Gleason score, perineural invasion, and number of positive cores in the biopsy specimen were preoperative independent predictors of positive surgical margin after laparoscopic radical prostatectomy while prostate volume was a protective factor against positive surgical margin.

关键词： needle biopsy perineural invasion positive surgical margin prostatectomy prostatic neoplasms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

串级间管道综合支管装配管组装模具设计

石油化工设备 2013年第2期42卷 38-42页

作者：贡小利中核兰州铀浓缩有限公司第九车间甘肃兰州730065

针对串级间管道综合支管装配管有70余种共900多件的组装难题,为保证串级间管道综合支管装配管的制造质量,提高装配管的生产效率,设计了具有通用性的组装模具。介绍了装配管组装模具的原理、结构、性能及制造注意事项。

关键词：装配管组装模具设计

The Mechanism of Heating Rate on the Secondary Recrystallization Evolution in Grain Oriented Silicon Steel

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 275-282页

作者： GAO Qian li Jun WANG Xianhui CAO Laifu gong Jian li Bo Central Iron and Steel Research Institute Group Beijing 100081China Shougang Zhixin Electromagnetic Material R&D(Beijing)Co. Ltd.Beijing 101300China Beijing Shougang Co. Ltd.Qian’an 064404China

Grain-oriented silicon steels were prepared at different heating rates during high temperature annealing,in which the evolution of magnetic properties,grain orientations and precipitates were *** illustrate the Zener factor,the diameter and number density of precipitates of interrupted testing samples were statistically *** effect of precipitate ripening on the Goss texture and magnetic property was *** indicated that the trend of Zener factor was similar under different heating rates,first increasing and then decreasing,and that the precipitate maturing was greatly inhibited as the heating rate *** recrystallization was developed at the temperature of 1010℃when a heating rate of 5℃/h was used,resulting in Goss,Brass and{110}oriented grains growing abnormally and a magnetic induction intensity of ***,increasing the heating rate to 20℃/h would inhibit the development of undesirable oriented grains and obtain a sharp Goss ***,when the heating rate was extremely fast,such as 40℃/h,poor secondary recrystallization was developed with many island grains,corresponding to a decrease in magnetic induction intensity to 1.87 *** a suitable heating rate of 20℃/h,the sharpest Goss texture and the highest magnetic induction of 1.94 T with an onset secondary recrystallization temperature of 1020℃were found among the experimental variables in this *** heating rate affected the initial temperature of secondary recrystallization by controlling the maturation of precipitates,leading to the deviation and dispersion of Goss texture,thereby reducing the magnetic properties.

关键词： high temperature annealing heating rate secondary recrystallization grain oriented silicon steel

Research progress of Sini decoction in pharmacy, pharmacology and clinical application

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Toxicology Advances 2022年第4期4卷 5-12页

作者： Ting-Yuan Dai Jian-Bo Wang Xue-Xin-Yu Ma Xue Wang xiao-li gong xiao-Zhou You School of pharmacy Shaanxi University of Traditional Chinese MedicineXianyang 712046China Sichuan College of Traditional Chinese Medicine Sichuan Provincial Key Laboratory of Traditional Chinese Medicine Translational MedicineInstitute of Translational Pharmacology and Clinical Application of Sichuan College of Traditional Chinese MedicineChengdu 610041China

Sini decoction originated from Zhang Zhongjing's Treatise on Cold Pathogenic and Miscellaneous Diseases(200-210 C.E.)in the Eastern Han *** is a traditional and famous prescription in *** preparations mainly include Sini decoction,Sini decoction drop pills and Sini decoction *** main chemical components are diterpenoid alkaloids,gingerol,volatile oil,coumarin,polysaccharide,triterpene saponins,flavonoids,amino acids,and *** product has a cardiovascular function,anti-shock,anti-diabetes complications,anti-tumor,anti-atherosclerosis,and effects on the nervous *** clinical practice is widely used in cardiovascular,respiratory,digestive,neurological and gynecological *** paper reviews the pharmaceutical research,pharmacological effects,safety evaluation and clinical application of Sini decoction,including the source and composition of Sini decoction,the origin and resource status of authentic medicinal materials of Sini decoction,the research on preparation form reform,chemical composition and quality control,to provide a reference for further research and clinical promotion of Sini decoction.

关键词： Sini decoction pharmacological action pharmacy

Design of a cationic accelerator enabling ultrafast ion diffusion kinetics in aqueous zinc-ion batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 377-384页

作者： Yawei xiao Qianqian Gu Haoyu li Mengyao li Yude Wang National Center for International Research on Photoelectric and Energy Materials School of Materials and Energy Yunnan University Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources School of Chemistry and Chemical Engineering Hainan University College of Chemical Engineering Fuzhou University Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies Yunnan University

Aqueous zinc-ion batteries are highly favored for grid-level energy storage owing to their low cost and high safety,but their practical application is limited by slow ion *** address this,a strategy has been developed to create a cation-accelerating electric field on the surface of the cathode to achieve ultrafast Zn2+diffusion *** employing electrodeposition to coat MoS2on the surface of BaV6O16·3H2O nanowires,the directional built-in electric field generated at the heterointerface acts as a cation accelerator,continuously accelerating Zn2+diffusion into the active *** optimized Zn2+diffusion coefficient in CC@BaV-6O16·3H2O@MoS2(7.5×10～8cm2s-1) surpasses that of most reported V-based ***,MoS2serving as a cathodic armor extends the cycling life of the Zn-CC@BaV6O16·3H2O@MoS2full batteries to over 10000 *** work provides valuable insights into optimizing ion diffusion kinetics for high-performance energy storage devices.

关键词： Zinc alloys