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Journal of Computational Mathematics 2008年第3期26卷 347-364页

作者： xia Ji Wei cai Pingwen Zhang Department of Mathematics and Statistics University of North Carolina at Charlotte USA Department of Scientific and Engineering Computing Peking University Beijing China

In this paper, we analyze the transmission and reflection properties of a high order discontinuous Galerkin method for dispersive Maxwell＇s equations, originally proposed by Lu et al. [J. Comput. Phys. 200 （2004）, pp. 549-580]. We study the reflection and transmission properties of the numerical method for up to second-order polynomial elements for one- and two-dimensional Maxwell＇s equations with rectangular meshes. High order accuracy has been shown for reflection and transmission coefficients near material interfaces.

关键词： Discontinuous Galerkin Method Reflection Transmission

Surface adhesive properties of continuous PBO fiber after air-plasma-grafting-epoxy treatment

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Journal of Central South University 2016年第9期23卷 2165-2172页

作者： JIA cai-xia Liaoning Key Laboratory of Advanced Polymer Matrix Composites Manufacturing Technology Shenyang Aerospace University Shenyang 110136 China State Key Laboratory of Fine Chemicals & School of Chemical Engineering (Dalian University of Technology) Dalian 116024 China

It was found that air dielectric barrier discharge(DBD) plasma contributed to the grafting of epoxy resin onto continuous PBO fiber surface. This air-plasma-grafting-epoxy method yielded a noticeable enhancement in the interfacial adhesion between PBO fiber and thermoplastic matrix resin, with the interlaminar shear strength of the resulting composites increased by 66.7%. DSC and FTIR analyses were then used to study the curing behavior of epoxy coating on PBO fiber surface, deduce the possible grafting reactions and investigate the grafting mechanism. More importantly, TGA measurement showed that the grafting of epoxy onto PBO fiber had almost no effect on the composite heat resistance, and there was more thermoplastic matrix resin adhering to the fiber surface; the latter could also be clearly found in the SEM photos. Thereby, the air-plasma-grafting-epoxy treatment was proved to be an effective method for the improvement of continuous PBO fiber surface adhesive properties.

关键词： plasma grafting continuous PBO fiber surface adhesive properties heat resistance

Dissecting the cell microenvironment of ovarian endometrioma through single-cell RNA sequencing

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Science China Life Sciences 2025年第1期 116-129页

作者： Jiangpeng Wu Siyu xia Wenting Ye Yan Sun Jing cai Fubing Yu Haiping Wen Xiuwei Yi Taikang Li Mingwei Chen Jiayun Chen Ge Song Chuanbin yang Yali Song Jigang Wang Department of Reproductive Medicine Dongguan Maternal and Child Health Care Hospital Department of Urology and Shenzhen Clinical Research Centre for GeriatricsShenzhen People's HospitalSouthern University of Science and Technology State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Artemisinin Research Centerand Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Reproductive Medicine Center Foshan Women and Children Hospital State Key Laboratory of Antiviral Drugs School of PharmacyHenan University

Ovarian endometrioma（OE）, also known as “chocolate cysts,” is a cystic mass that develops in the ovaries due to endometriosis and is a common gynecological condition characterized by the growth of endometrial tissue outside the uterus, leading to symptoms such as dysmenorrhea, pelvic pain, and infertility. However, the precise molecular and cellular mechanisms driving this pathophysiology remain largely unknown, posing challenges for diagnosis and treatment. Here, we employed integrated single-cell transcriptomic profiling of over 52,000 individual cells from endometrial tissues of OE patients and healthy donors and identified twelve major cell populations. We identified notable alterations in cell type-specific proportions and molecular signatures associated with OE. Notably, the activation of IGFBP5+macrophages with pro-inflammatory properties, NK cell exhaustion, and aberrant proliferation of IQCG+and KLF2+epithelium are key features and may be the potential mechanisms underlying the pathogenesis of OE. Collectively, our data contribute to a better understanding of OE at the single cell level and may pave the way for the development of novel therapeutic strategies.

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木瓜苦桑片对Ⅱ型糖尿病大鼠的影响

中国实验方剂学杂志 2017年第15期23卷 166-172页

作者：高玲许立拔王巍林彩霞杨沛霖巫玲玲庞晓军蒋伟哲广西医科大学药学院南宁530021

目的:研究木瓜苦桑片对高脂高糖联合低剂量链脲佐菌素诱导的Ⅱ型糖尿病大鼠血糖、血脂、肝肾功能和胰腺组织的影响。方法:雄性SD大鼠给予高脂饲料喂养4周后,链脲佐菌素(45 mg·kg^(-1))给药1次,建立糖尿病大鼠模型,将造模成功的大鼠随... 详细信息

目的:研究木瓜苦桑片对高脂高糖联合低剂量链脲佐菌素诱导的Ⅱ型糖尿病大鼠血糖、血脂、肝肾功能和胰腺组织的影响。方法:雄性SD大鼠给予高脂饲料喂养4周后,链脲佐菌素(45 mg·kg^(-1))给药1次,建立糖尿病大鼠模型,将造模成功的大鼠随机分为模型组,二甲双胍组(285 mg·kg^(-1)),木瓜苦桑片高、中、低剂量组(2 600,1 300,650 mg·kg^(-1)),另设正常组,每组10只,每天灌胃给药1次,连续4周,记录每只大鼠24 h的尿量、饮水量、摄食量,分别测定血糖值(FBG),胰岛素(INS),过氧化氢酶(CAT),超氧化物歧化酶(SOD),丙二醛(MDA),一氧化氮(NO),血清总胆固醇(TC),甘油三酯(TG),低密度脂蛋白胆固醇(LDL-C),高密度脂蛋白胆固醇(HDL-C),丙氨酸氨基转移酶(AST),天冬氨酸氨基转移酶(ALT),肌酸激酶(CK),肌酐(Cr)和尿素氮(BUN)水平,取胰腺苏木素-伊红(HE)染色观察组织结构。结果:与正常组比较,模型组的大鼠摄食量,饮水量,尿量,FBG,INS,MDA,NO,LDL-C,TC,TG,AST,ALT,BUN,Cr,CK水平均明显升高,CAT,SOD,HDL-C水平降低(P<0.05,P<0.01);与模型组比较,各给药组大鼠摄食量,饮水量,尿量,FBG,INS,MDA,NO,LDL-C,TC,TG,AST,ALT,BUN,Cr,CK水平均明显降低,CAT,SOD,HDLC水平升高(P<0.05,P<0.01);与正常组比较,模型组大鼠胰岛细胞数目减少,排列紊乱,颜色深,细胞间质和细胞间界限不清晰;与模型组比较,各给药组大鼠胰岛细胞数目增多,排列整齐,细胞形态恢复规则。结论:木瓜苦桑片有明显降血糖及血脂作用,可增强机体抗氧化损伤的能力,对肝肾功能具有明显改善作用,可维持胰岛正常结构和功能。

关键词：木瓜苦桑片 Ⅱ型糖尿病血糖胰腺抗氧化

Transition toward thorium fuel cycle in a molten salt reactor by using plutonium

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Nuclear Science and Techniques 2017年第10期28卷 103-112页

作者： De-yang Cui Shao-Peng xia xiao-xiao Li xiang-Zhou cai Jin-Gen Chen Shanghai Institute of Applied Physics Chinese Academy ofSciencesShanghai 201800China CAS Innovative Academies in TMSR Energy System Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China

The molten salt reactor(MSR), as one of the Generation Ⅳ advanced nuclear systems, has attracted a worldwide interest due to its excellent performances in safety, economics, sustainability, and proliferation resistance. The aim of this work is to provide and evaluate possible solutions to fissile 233 U production and further the fuel transition to thorium fuel cycle in a thermal MSR by using plutonium partitioned from light water reactors spent fuel. By using an in-house developed tool, a breeding and burning(B&B) scenario is first introduced and analyzed from the aspects of the evolution of main nuclides, net 233 U production, spectrum shift, and temperature feedback coefficient. It can be concluded that such a Th/Pu to Th/^(233)U transition can be accomplished by employing a relatively fast fuel reprocessing with a cycle time less than 60 days. At the equilibrium state, the reactor can achieve a conversion ratio of about 0.996 for the 60-day reprocessing period(RP) case and about 1.047 for the 10-day RP *** results also show that it is difficult to accomplish such a fuel transition with limited reprocessing(RP is 180 days),and the reactor operates as a converter and burns the plutonium with the help of thorium. Meanwhile, a prebreeding and burning(PB&B) scenario is also analyzed briefly with respect to the net 233 U production and evolution of main nuclides. One can find that it is more efficient to produce 233 U under this scenario, resulting in a double time varying from about 1.96 years for the 10-day RP case to about 6.15 years for the 180-day RP case.

关键词：钍燃料循环反应器熔盐堆先进核能系统钚循环时间轻水反应堆燃料后处理

CDCC Approaches and Roles of Closed Channels in d-Nucleus Reactions

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Communications in Theoretical Physics 2008年第9期50卷 719-724页

作者： AN Hai-xia cai Chong-Hai Department of Physics Nankai University Tianjin 300071 China

The effect of deuteron breakup in d-nucleus reaction is treated with the continuum discretized coupled channels （CDCC） approach, and the effects on the total reaction cross sections and elastic scattering angular distributions are studied by comparing the calculations of CDCC and spherical optical model with our global deuteron optical potential [Phys. Rev. C 73 （2006） 054605] below 200 MeV, for target nuclei ranging from ^12C to ^208Pb. The contributions from the closed channels to the total reaction and breakup cross sections, and angular distributions of elastic scattering are also seriously discussed.

关键词： CDCC approach closed channel spherical optical model global deuteron optical potential

On the Effects of Risk Pooling in Supply Chain Management:Review and Extensions

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Acta Mathematicae Applicatae Sinica 2009年第4期25卷 709-722页

作者： xia cai Dong-lei Du Faculty of Business Administration University of New Brunswick P.O. Box 4400 Fredericton NB Canada E3B 5A3

The primary challenge in supply chain management （SCM） is matching supply with uncertain demand. Risk pooling is an efficient and promising strategy to meet this challenge by reducing the underlying demand uncertainty through aggregation. The main focus of this paper is to analyze the effects of risk pooling under different supply chain settings. There are two main contributions. First, we propose a mathematical framework which serves the multi-purpose of （1） unifying existing models on risk pooling in the literature, （2） providing new facets and insights of understanding existing results on risk pooling, and （3） setting up new ground for extending existing models and results. Second; we investigate one interesting effect of risk pooling, namely, the decreasing marginal return （or supermodularity）. We show that there are decreasing marginal returns in risk pooling practices under certain conditions, specifically when the demand is independent and identically distributed （I.I.D.） and normally distributed.

关键词： supply chain management (SCM) Risk pooling mathematical framework

Cost-benefit analysis of esophageal cancer endoscopic screening in high-risk areas of China

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World Journal of Gastroenterology 2012年第20期18卷 2493-2501页

作者： Juan yang wen-Qiang wei Jin Niu Zhi-cai Liu Chun-xia yang You-Lin Qiao Department of Epidemiology West China School of Public Health Sichuan University Chengdu 610041 Sichuan Province China Department of Epidemiology Cancer Institute and Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100021 China Department of Thoracic-Surgery Linzhou Cancer Institute Linzhou 456550 Henan Province China

AIM:To estimate the cost-benefit of endoscopic screening strategies of esophageal cancer(EC)in high-risk areas of China. METHODS:Markov model-based analyses were conducted to compare the net present values(NPVs)and the benefit-cost ratios(BCRs)of 12 EC endoscopic screening *** varied according to the targeted screening age,screening frequencies,and follow-up *** parameters were collected from population-based studies in China,published literatures,and surveillance data. RESULTS:Compared with non-screening outcomes,all strategies with hypothetical 100 000 subjects saved life *** five dominant strategies determined by the incremental cost-effectiveness analysis,screening once at age 50 years incurred the lowest NPV(international dollar-I$55 million)and BCR(2.52).Screening six times between 40-70 years at a 5-year interval[i.e., six times(40)f-strategy]yielded the highest NPV(I$99 million)and BCR(3.06).Compared with six times(40)fstrategy,screening thrice between 40-70 years at a 10-year interval resulted in relatively lower NPV,but the same BCR. CONCLUSION:EC endoscopic screening is cost-beneficial in high-risk areas of ***-makers should consider the cost-benefit,population acceptance,and local economic status when choosing suitable screening strategies.

关键词： Cost-benefit analysis Esophageal cancer Endoscopy Screening High-risk area

An Alias Resolution Method Based on Delay Sequence Analysis

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Computers, Materials & Continua 2020年第6期63卷 1433-1443页

作者： yang Tao Gang Hu Bingnan Hou Zhiping cai Jing xia Cheang Chak Fong College of Computer National University of Defense TechnologyChangsha410073China Macao University of Science and Technology 999078Macao

Alias resolution,mapping IP addresses to routers,is a critical step in obtaining a network *** latest work on alias resolution is based on special fields in the packet,such as IP ID,port number,***,for security reasons,most network devices block packets for setting options,and some related fields exist only in IPv4,so these methods cannot be used for alias resolution of *** order to solve the above problems,we propose an alias analysis method based on delay sequence *** this article,we present a new model to describe the distribution of Internet delays and give a mathematical *** experimental measurements using the Macroscopic Internet Topology Data Kit(ITDK)and Ark IPv6 Topology Dataset,it was found that the statistical differences in most alias delay models were very *** statistical differences in the non-alias delay models are spread over a wide *** the wavelet decomposition in delay sequence,it was found that the approximate components and the detail components of the delay sequence of aliases were the same after filtering out the noise,which provided a theoretical explanation for the experimental *** technology is applicable to both IPv4 and IPv6.

关键词： Alias resolution IPv6 Internet topology measurement methodology

Solid Solute Regularity of La Atom inα-Fe Supercell by First-principles

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Journal of Iron and Steel Research International 2016年第11期23卷 1213-1218页

作者： cai-xia WANG Jian yang Sha LIU xiao-lei XING Ji-bo WANG Xue-jun REN Qing-xiang yang State Key Laboratory of Metastable Materials Science and Technology Yanshan University School of Materials Science and Engineering University of Science and Technology Beijing School of Engineering Liverpool John Moores University

The structure stability, elastic property and electronic structure of a-Fe supercell with La atom were inves- tigated by first-principles, in which, generalized gradient approximation （GGA） with the Perdew Burke Ernzerhof （PBE） was used as exchange-correlation functional, a-Fe supercells with La atom include a-Fe supercell with La atom in octahedral interstitial solid solute （La-OISS）, that with La atom in tetrahedral interstitial solid solute （La-TISS） and that with La atom in substitutional solid solute （La-SSS）. The results show that the La-SSS a-Fe supercell is more stable than La-OISS one. The resistance to volume change, reversible deformation and stiffness of La-OISS a-Fe supercell are stronger than those of La-SSS one. Moreover, the degrees of anisotropy and ionization in La-SSS a-Fe supercell are both stronger than those in La-OISS one. The bonding strength between La atom and Fe atom in La-SSS a-Fe supercell is larger than that in La-OISS one.

关键词： La atom a-Fe supercell solid solution first-principles bonding strength