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Existence of p-mean Almost Periodic Mild Solution for Fractional Stochastic Neutral Functional Differential Equation

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Acta Mathematicae Applicatae Sinica 2021年第3期37卷 645-656页

作者： xiao-ke SUN ping HE School of Mathematics Shanghai University of Finance and EconomicsShanghai200433China

A class of fractional stochastic neutral functional differential equation is analyzed in this *** the utilization of the fractional calculations,semigroup theory,fixed point technique and stochastic analysis theory,a sufficient condition of the existence for p-mean almost periodic solution is obtained,which are supported by two examples.

关键词： p-mean almost periodic solution fractional stochastic neutral functional differential equation fixed point theorem sectorial operator analytic semigroup

Endoscope-assisted goniosynechialysis combined with phacoemulsification and intraocular lens implantation to manage primary angle-closure glaucoma

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International Journal of Ophthalmology(English edition) 2013年第2期6卷 174-177页

作者： Jing Chen Yu-ping zou Department of Ophthalmology Guangzhou General Hospital of Guangzhou Military Command

AIM: To describe and evaluate a new ophthalmic endoscope surgical technique combined with phacoe-mulsification and intraocular lens (IOL) implantation to treat goniosynechialysis and manage primary angle-closure glaucoma (PACG). ·METHODS: Endoscope-assisted goniosynechialysis combined with phacoemulsification and IOL implantation was performed in 32 eyes of 29 patients with PACG. Regular follow-up was performed 1 week and 1 month, 3, and 6 months after surgery to assess complications, intraocular pressure (IOP), anterior chamber depth, visual acuity, and anterior chamber angle. ·RESULTS: Preoperative mean IOP was 24.88±7.22mmHg with pharmacological treatment, and was 13.70 ±4.02, 13.06 ±3.74, 14.29 ±4.70, and 14.33 ±5.01mmHg 1 week, 1 month, 3 months, and 6 months after surgery, respectively. The postoperative decrease in IOP was significant (P < 0.05). The rate for all eyes with IOP of 21mmHg or less was 93.8% (30 eyes) at the final visit without ocular hypotensive agents. The average preoperative anterior chamber depth was 1.60 ±0.64mm, and this value significantly increased to 2.72±0.62, 2.76±0.70, 2.73±0.68, and 2.74 ±0.71mm at 1 week, 1 month, 3 months, and 6 months, respectively. Visual acuity was improved in 28 eyes (87.5% ) at 6 months postoperatively. The anterior chamber angle had increased in 25 eyes (78.1% ) at the final visit; it was adhesive 90°-180° in 6 eyes, 180°-270° in only 1 eye. Two eyes exhibited minimal hyphema in the early postoperative period, but it could gradually be absorbed. Fibrinous reaction was observed in five eyes and spontaneously disappeared within 7 days. No shallow anterior chamber, iridodialysis, choroidal deta-chment, or malignant glaucoma was found in any ***:Endoscope-assisted goniosynechialysis combined with phacoemulsification and IOL implantation to manage PACG has several advantages, including optimized visualization, greater accuracy, and improved safety. Our results suggest that it has certain curative e

关键词： angle closure glaucoma goniosynechialysis endoscope phacoemulsification

Heavy Metal Contamination in Soil and Soybean near the Dabaoshan Mine, South China

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Pedosphere 2013年第3期23卷 298-304页

作者： ZHUANG ping LI Zhi-An zou Bi XIA Han-ping WANG Gang South China Botanical Garden Chinese Academy of Sciences

Concentrations of Pb, Cd, Cu, Zn, Cr and Ni in soybean (Glycine max L.) grown near the Dabaoshan Mine were investigated, and their potential risk to the health of inhabitants was estimated. In the Fandong (FD) and Zhongxin (ZX) villages, which are near the Dabaoshan mineral deposit, concentrations of Pb (0.34 mg kg^(-1) for FD), Cd (0.23 mg kg^(-1) for ZX) and Cr (1.14 and 1.75 mg kg^(-1) for FD and ZX, respectively) in the seeds of soybean exceeded the tolerance limit set by Chinese standards. The estimated daily intakes (EDIs) from consumption of soybean seeds for FD inhabitants were 0.570, 0.170, 38.550, 142.400, 1.910 and 14.530 μg d^(-1) kg^(-1) boby weight for Pb, Cd, Cu, Zn, Cr and Ni, respectively. Our results indicate that soybeans grown in the vicinity of the Dabaoshan Mine accumulate some metals, and the seeds pose a potential health risk to the local inhabitants.

关键词： accumulation cadmium estimated daily intake health risks target hazard quotient

Effect of Gd on neutron absorption properties and electrochemical corrosion behavior of Zr-Gd alloy in boiling concentrated HNO3

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Nuclear Science and Techniques 2023年第3期34卷 40-51页

作者： Cheng-Jie Du xiao-Gang Hu ping-Yi Guo xiao-Long Pan Jin-ping Wu School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China Xi’an Rare Metal Materials Institute Co. LtdXi’an 710016China

A Zr-Gd alloy with neutron poisoning properties and resistance to boiling concentrated HNO3 corrosion was developed based on a corrosion-resistant Zr-702 alloy to meet the demand for neutron shielding in the closed-loop treatment of spent fuel and the nuclear chemical *** this study,1 wt.%,3 wt.%,5 wt.%,7 wt.%,and 9 wt.%Zr-Gd alloys were designed and fabricated with Zr-702 as the control *** electrochemical behavior of the Zr-Gd alloys in boiling concentrated HNO3 was investigated,and the neutron shielding effect on plate thickness and Gd content was *** experimental results demonstrate that the corrosion resistance of the alloy decreased slightly before~7-9 wt.%with increasing Gd content;this is the inflection point of its corrosion *** alloy uniformly dissolved the Gd content that could not be dissolved in the Zr lattice,resulting in numerous micropores on the passivation coating,which deteriorated and accelerated the corrosion *** MCNP simulation demonstrated that when the Gd content was increased to 5 wt.%,a 2-mm-thick plate can shield 99.9%neutrons;an alloy with a Gd content≥7 wt.%required only a 1-mm-thick plate,thereby showing that the addition of Gd provides an excellent neutron poisoning ***,the corrosion resistance and neutron shielding performance of the Zr-Gd alloy can meet the harsh service requirements of the nuclear industry.

关键词： Zr-Gd alloy Boiling concentrated HNO3 Electrochemistry Neutron shielding MCNP

Kinetic modeling the effects of primary migration, diffusion and waterwashing on Upper Paleozoic coal-derived gas at the center of Ordos Basin

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Chinese Science Bulletin 2004年第S1期49卷 94-100页

作者： SHUAI Yanhua zou Yanrong PENG ping’an State Key Laboratory of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China

Gold reactor pyrolysis system is used to model the gas formation from the Upper Paleozoic coal measures and the results show coal-derived gas characterized with δ13C1 of-33.46‰, δ13C2 of-23.1‰, dryness(C1/C1-4) 85.6%. And then, effects of the post-genetic processes on coal- derived gas are analyzed in turn: (i) About 27% coal-derived gases constituted with more methane are calculated to be lost during diffusion. The residual in reservoir are characterized with almost the same compositions as the original, which suggests faint influence by diffusion (the residual, δ13C1 of -32.78‰, δ13C2 of-23.1‰, C1/C1-4 83%); (ii) Water washing made about 8% coal-formed gases lost and their components and stable carbon isotopes are stable; (iii) In the final, it is speculated that primary migration makes much more wet gas (C2-4) leave in coal measures. The variance of gas dryness induced by this factor is estimated to be about 10%.

关键词： diffusion migration dryness isotopic ratios Ordos Basin Upper Paleozoic coal.

Relationship Among Solutions of a Generalized Riccati Equation

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Communications in Theoretical Physics 2007年第4X期48卷 610-614页

作者： LIU xiao-ping LIU Chun-ping Institute of Mathematics Yangzhou University Yangzhou 225002 China Gaoyou Branch Yangzhou Education College Gaoyou 225600 China

In this paper, some solutions of a generalized Riccati equation are investigated, which are given in the recent articles [Chaos, Solitons ＆ Fractals 24 （2005） 257; Phys. Lett. A 336 （2005） 463], and the relations... 详细信息

关键词： generalized Riccati equation nonlinear partial differential equations exact solution

Comment on “Symbolic Computation and q-Deformed Function Solutions of the (2+1)-Dimensional Breaking Soliton Equation”

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Communications in Theoretical Physics 2008年第3期49卷 571-574页

作者： LIU xiao-ping LIU Chun-ping Institute of Mathematics Yangzhou University Yangzhou 225002 China Gaoyou Branch Yangzhou College of Education Gaoyou 225600 China

In a recent article [Commun. Theor. Phys. （Beijing, China） 47 （2007） 270], Cao et al. gave some nontrivial solutions of a Riccati equation by using symbolic and algebra computation. They took these solutions, which are in the form of q-deformed hyperbolic and triangular functions as new solutions. In this comment, we will show that these solutions are just the special cases of some known solutions of the Riccati equation and thus they are not new solutions.

关键词： symbolic computation Riccati equation q-deformed hyperbolic functions

Collaborative visual SLAM for multiple agents:A brief survey

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Virtual Reality & Intelligent Hardware 2019年第5期1卷 461-482页

作者： Danping zou ping TAN Wenxian YU Shanghai Key Laboratory of Navigation and Location-Based Services Shanghai Key Laboratory of Intelligent Sensing and RecognitionShanghai Jiao Tong UniversityShanghai 200240China School of Computing Science Simon Fraser UniversityBurnaby V5A 1S6Canada

This article presents a brief survey to visual simultaneous localization and mapping (SLAM) systems applied to multiple independently moving agents, such as a team of ground or aerial vehicles, a group of users holding augmented or virtual reality devices. Such visual SLAM system, name as collaborative visual SLAM, is different from a typical visual SLAM deployed on a single agent in that information is exchanged or shared among different agents to achieve better robustness, efficiency, and accuracy. We review the representative works on this topic proposed in the past ten years and describe the key components involved in designing such a system including collaborative pose estimation and mapping tasks, as well as the emerging topic of decentralized architecture. We believe this brief survey could be helpful to someone who are working on this topic or developing multi-agent applications, particularly micro-aerial vehicle swarm or collaborative augmented/virtual reality.

关键词： Visual SLAM Multiple agent UAV swarm Collaborative AR/VR

Ubiquitin-specific protease 15 contributes to gastric cancer progression by regulating the Wnt/β-catenin signaling pathway

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World Journal of Gastroenterology 2021年第26期27卷 4221-4235页

作者： Min Zhong Ling Zhou Zhi Fang Yang-Yang Yao Jian-ping zou Jian-ping Xiong xiao-Jun Xiang Jun Deng Department of Jiangxi Key Laboratory for Individualized Cancer Therapy The First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Cancer Center The First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina

BACKGROUND Ubiquitin-specific protease 15(USP15)is an important member of the ubiquitinspecific protease family,the largest deubiquitinase subfamily,whose expression is dysregulated in many types of ***,the biological function and the underlying mechanisms of USP15 in gastric cancer(GC)progression have not been *** To explore the biological role and underlying mechanisms of USP15 in GC *** Bioinformatics databases and western blot analysis were utilized to determine the expression of USP15 in *** was performed to evaluate the correlation between USP15 expression and clinicopathological characteristics of patients with GC.A loss-and gain-of-function experiment was used to investigate the biological effects of USP15 on GC *** sequencing,immunofluorescence,and western blotting were performed to explore the potential mechanism by which USP15 exerts its oncogenic *** USP15 was up-regulated in GC tissue and cell *** expression level of USP15 was positively correlated with clinical characteristics(tumor size,depth of invasion,lymph node involvement,tumor-node-metastasis stage,perineural invasion,and vascular invasion),and was related to poor ***15 knockdown significantly inhibited cell proliferation,invasion and epithelialmesenchymal transition(EMT)of GC in vitro,while overexpression of USP15 promoted these *** of USP15 inhibited tumor growth in ***,RNA sequencing analysis showed that USP15 regulated the Wnt signaling pathway in *** blotting confirmed that USP15 silencing led to significant down-regulation ofβ-catenin and Wnt/β-catenin downstream genes(c-myc and cyclin D1),while overexpression of USP15 yielded an opposite result and USP15 mutation had no *** indicated that USP15 promoted nuclear translocation ofβ-catenin,suggesting activation of the Wnt/β-catenin signaling pathway,which may be the critical mech

关键词： Ubiquitin-specific protease 15 Gastric cancer Wnt/β-catenin Cell proliferation Cell invasion Epithelial-mesenchymal transition