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一类相依索赔风险模型的破产概率问题研究

数学的实践与认识 2006年第9期36卷 94-100页

作者：解俊山赵选民西北工业大学应用数学系西安710072

考虑一种相依索赔风险模型,其中每次索赔发生时根据索赔额的大小可随机产生一延迟的副索赔.采用L ap lace变换方法,给出了索赔额服从轻尾分布时的最终破产概率,并研究了重尾分布时最终破产概率的极限上下界.

关键词：风险模型相依索赔破产概率副索赔 Laplace变换

A Test on High-Dimensional Intraclass Correlation Structure

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Chinese Quarterly Journal of Mathematics 2022年第1期37卷 10-25页

作者： TANG Ping XIAO Nan-nan xie jun-shan School of Mathematics and Statistics Henan UniversityKaifeng 475004China

The paper considers a high-dimensional likelihood ratio(LR)test on the intraclass correlation structure of the multivariate normal *** the dimension p and sample size N satisfy N−1>p→∞,it is proved that the logarithmic LR statistic asymptotically obeys Gaussian distribution,and the explicit expressions of the mean and the variance are also *** simulations demonstrate that our high-dimensional LR test method outperforms the traditional Chi-square approximation method or F-approximation method,and performs as efficient as the accurate high-dimensional Edgeworth expansion method and the more accurate high-dimensional Edgeworth expansion method in analyzing the intraclass covariance structure of highdimensional data.

关键词： Likelihood ratio test High-dimensional data Intraclass correlation structure

Antiviral therapy for hepatitis B virus infection is beneficial for the prognosis hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 1-9页

作者： Hui Wan Yu-Xin Zhang Guan-Yue shan jun-Ya Cheng Duan-Rui Qiao Yi-Ying Liu Wen-Na Shi Hai-jun Li Institute of Translational Medicine The First Hospital of Jilin UniversityChangchun 130061Jilin ProvinceChina Department of Bioengineering Pharmacy School of Jilin UniversityChangchun 130061Jilin ProvinceChina Institute of Liver Diseases Institute of Translational MedicineThe First Hospital of Jilin UniversityChangchun 130061Jilin ProvinceChina

In this editorial,we comment on the article by Mu et al,published in the recent issue of the World Journal of Gastrointestinal *** pay special attention to the immune tolerance mechanism caused by hepatitis B virus(HBV)infection,the pathogenesis of hepatocellular carcinoma(HCC),and the role of antiviral therapy in treating HCC related to HBV *** infection leads to systemic innate immune tolerance by directly inhibiting pattern recognition receptor recognition and antiviral signaling pathways,as well as by inhibiting the immune functions of macrophages,natural killer cells and dendritic *** addition,HBV leads to an immunosuppressive cascade by expressing inhibitory molecules to induce exhaustion of HBV-specific cluster of differentiation 8+T cells,ultimately leading to long-term viral *** loss of immune cell function caused by HBV infection ultimately leads to ***-term antiviral therapy can improve the prognosis of patients with HCC and prevent tumor recurrence and metastasis.

关键词： Hepatitis B virus Hepatocellular carcinoma Hepatitis B virus-DNA Immune tolerance Antiviral therapy

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一类更新风险模型的有限破产时刻

河南科学 2008年第1期26卷 22-24页

作者：于吉亮解俊山河南大学数学与信息科学学院河南开封475004

研究了一类保费收入过程为平稳无后效流过程、理赔到达为更新过程的风险模型,得到了在索赔额服从指数分布情况下模型的最终破产概率和有限破产时刻的数字特征。

关键词：风险模型平稳无后效流过程有限破产时刻破产概率

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一类风险模型的红利问题研究

西南民族大学学报（自然科学版） 2008年第3期34卷 450-454页

作者：解俊山于吉亮河南大学数学与信息科学学院

研究了一类有界带干扰的Erlang(2)风险模型边界红利策略下的红利分布问题,得到了总红利贴现值的矩母函数及任意阶矩所满足的积分—微分方程,并在索赔额分布函数存在有理Laplace变换条件下对总红利贴现值的任意阶矩进行了分析求解.

关键词：风险模型 Erlang(2)分布红利贴现值矩母函数

一种推广的Andersen风险模型问题研究

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佳木斯大学学报（自然科学版） 2006年第1期24卷 125-127页

作者：解俊山陆朝阳西北工业大学应用数学系陕西西安710072 武警工程学院基础部陕西西安710086

研究了保单到达过程为平稳无后效流过程,理赔到达过程为一般更新过程的Andersen更新风险模型.利用鞅方法得到了该模型最终破产概率的Lundberg不等式及其表达式,并进一步研究了在理赔额服从指数分布情况下有限时间内的生存概率.

关键词：更新风险模型破产概率平稳无后效流鞅

The Moment Convergence Rates for Largest Eigenvalues of β Ensembles

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Acta Mathematica Sinica,English Series 2013年第3期29卷 477-488页

作者： jun shan xie Department of Mathematics Zhejiang University College of Mathematics and Information He’nan University

The paper focuses on the largest eigenvalues of theβ-Hermite ensemble and theβ-Laguerre ensemble. In particular, we obtain the precise moment convergence rates of their largest eigenvalues. The results are motivated by the complete convergence for partial sums of i.i.d, random variables, and the proofs depend on the small deviations for largest eigenvalues of the β ensembles and tail inequalities of the generalβ Tracy-Widom law.

关键词： β Ensembles largest eigenvalue moment convergence rate generalβ Tracy-Widom law

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糙米、胚芽米和精白米营养成分分析

食品科技 2016年第11期41卷 156-159页

作者：王艳兰向东陈钊桑井艳谢文军宋善武张鹏朱松北京市粮食科学研究院北京100053 北京古船米业有限公司北京100096 江南大学食品科学与技术国家重点实验室无锡214122

胚芽米是通过适度加工得到的一种新产品,目前消费者对其营养及产品质量的认知度较低。分析比较了糙米、胚芽米和精白米中的营养成分(如蛋白质、脂肪、碳水化合物、灰分、粗纤维、直链淀粉、直链淀粉、维生素、微量元素、氨基酸等)。结... 详细信息

胚芽米是通过适度加工得到的一种新产品,目前消费者对其营养及产品质量的认知度较低。分析比较了糙米、胚芽米和精白米中的营养成分(如蛋白质、脂肪、碳水化合物、灰分、粗纤维、直链淀粉、直链淀粉、维生素、微量元素、氨基酸等)。结果表明胚芽米的蛋白质、脂肪、灰分、淀粉、维生素、微量元素及氨基酸含量均高于精白米,而与糙米相比差异不大。这说明胚芽米和糙米一样具有比精米更高的营养价值。由于糙米有糠层,吸水困难,蒸煮时间长,米饭质构和食味值较差,胚芽米与糙米相比口感更好,因此,适度加工工艺能较好地保留大米中的营养物质,为胚芽米生产企业及消费者提供一定的科学依据。

关键词：胚芽米糙米精白米营养成分

Novel high torque bearingless two-sided rotary ultrasonic motor

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第5期8卷 786-792页

作者： LI Xia CHEN Wei-shan xie Tao LIU jun-kao Department of Mechatronics Engineering Harbin Institute of Technology Harbin 150001 China

Applications are limited at present because the currently available ultrasonic motors (USMs) do not provide suffi-ciently high torque and power. The conventional travelling-wave USM needs the bearing to support, which required lubricant. To solve the above problem, a bearingless travelling-wave USM is designed. First, a novel structure of the two-sided USM consisting of a two-sided teeth stator and two disk-type rotors is designed. And the excitation principle of the two-sided travelling-wave USM is analyzed. Then, using ANSYS software, we set up the model of the stator to predict the excitation frequency and modal response of the stator. The shape of the vibration mode was obtained. Last, the load characteristics of the USM are measured using ex-perimental method. The maximum stall torque and the no-load speed were obtained. The results showed that the characteristics of the two-sided USM are better than those of the conventional one-sided USM.

关键词： Two-sided Ultrasonic motor (USM) Piezoelectric motor Travelling-wave Bearingless