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China CDC weekly 2024年第10期6卷 189-194,I0002页

作者： Di Gao Jiayue Li Gengli Zhao Zhaohui Liu Hui Bi Dai Zhang Fengxia Xue Chen Liu Hongtao Ma bei lin Xu Wang Xiaosong Zhang linhong Wang Department of Obstetrics and Gynecology Peking University First HospitalBeijingChina School of Medicine University College DublinIreland beijing Obstetrics and Gynecology Hospital BeijingChina Tianjin Medical University General Hospital TianjinChina Northwest Women’s and Children’s Hospital Xi’an CityShaanxi ProvinceChina Third Affiliated Hospital of Zhengzhou University Zhengzhou CityHenan ProvinceChina Shengjing Hospital of China Medical University Shenyang CityLiaoning ProvinceChina National Center for Chronic and Non-Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina

Summary What is already known about this topic?Previous studies have indicated a possible association between reproductive tract infections(RTIs)and highrisk human papillomavirus(HPV)infection,but the evidence is still *** is added by this report?This multicenter study found significantly higher positive rates of HPV,including general HPV,highrisk HPV.

关键词： Tertiary infection Reproductive

水力发电机定子绕组泄漏电流分析及电腐蚀治理研究

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中国农村水利水电 2024年第5期 226-230,236页

作者：林倍民秦光宇广西北部湾陆海新能源股份有限公司广西南宁530022 哈尔滨电机厂有限责任公司黑龙江哈尔滨150040

发电机长期运行后,定子绕组会逐渐出现老化或电腐蚀现象,需要科学的试验分析方法诊断设备健康状况。通过分析多台大型贯流式发电机定子绕组直流耐压试验泄漏电流数据,提出了绝缘性能评估方法及预防绕组击穿措施;根据贴壁式结构定子绕组... 详细信息

发电机长期运行后,定子绕组会逐渐出现老化或电腐蚀现象,需要科学的试验分析方法诊断设备健康状况。通过分析多台大型贯流式发电机定子绕组直流耐压试验泄漏电流数据,提出了绝缘性能评估方法及预防绕组击穿措施;根据贴壁式结构定子绕组电腐蚀及运行温度偏高状况,研究一系列定子改造创新设计及创新工艺,并对定子温度场进行有限元仿真计算。温升试验数据表明定子改造后的发电机运行温度有效降低,各测点温度偏差大幅减小。研究结果接近仿真计算值,证明了定子改造采用的新工艺有效可行。

关键词：泄漏电流直流耐压试验发电机定子绕组绝缘性能电腐蚀治理

Stochastic dynamics of the transmission of Dengue fever virus bet ween mosquit oes aiul humans

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International Journal of Biomathematics 2021年第7期14卷 329-352页

作者： Manjing Guo lin Hu lin-bei Nie College of Mathematics and System Science Xinjiang University Urumqi830046P.R.China

Considering the impact of environmental white noise on the quantity and behavior ofvector of disease,a stochastic differential model describing the transmission of Denguefever between mosquitoes and humans,in this paper,is *** using Lyapunovmethods and Ito's formula,we first prove the existence and uniqueness of a globalpositive solution for this ***,some sufficient conditions for the extinction andpersistence in the mean of this stochastic model are obtained by using the techniquesof a series of stochastic *** addition,we also discuss the existence of aunique stationary distribution which leads to the stochastic persistence of this ***,several numerical simulations are carried to illustrate the main results of thiscontribution.

关键词： Dengue model stochastic perturbation persistence and extinction in the mean stationary distribution

直播电商中饥饿营销对消费者冲动购买行为的影响

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科技和产业 2024年第11期24卷 101-108页

作者：许景贤林蓓黄志锋泉州师范学院陈守仁商学院福建泉州362000

饥饿营销在直播中应用非常广泛,但直播中饥饿营销影响消费者冲动购买因素的研究尚较缺乏。利用SOR(刺激-有机体-反应)理论构建结构方程模型,采用调查问卷的形式收集数据,并通过SPSS19.0和Amos 22对数据进行分析。研究表明:主播特质、在... 详细信息

饥饿营销在直播中应用非常广泛,但直播中饥饿营销影响消费者冲动购买因素的研究尚较缺乏。利用SOR(刺激-有机体-反应)理论构建结构方程模型,采用调查问卷的形式收集数据,并通过SPSS19.0和Amos 22对数据进行分析。研究表明:主播特质、在线评论、促销激励、促销数量限制对感知价值有显著正向影响;促销时间限制对感知价值的影响不显著;促销时间限制和促销数量限制对感知竞争性有显著正向影响;感知价值和感知竞争性对消费者冲动购买行为有显著正向影响。

关键词：直播电商饥饿营销冲动购买行为感知价值

SPREADING DYNAMICS OF A DISEASE-AWARENESS SIS MODEL ON COMPLEX NETWORKS

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International Journal of Biomathematics 2013年第4期6卷 99-111页

作者： bei lin HENLONG SUN XINCHU FU GUANGHUZHU Department of Mathematics Shanghai UniversityShanghai 200444 P. R. China School of Mathematics and Computing Science Guilin University of Electronic Technology Guilin 541004 P. R. China

In this paper, to better understand the impact of awareness and the network structure on epidemic transmission, we divide the population into four subpopulations corresponding to different physical states and conscious states, and we first propose a modified disease- awareness model, then verify the global stability of the disease-free and endemic equilib- ria, and finally present numerical simulations to demonstrate the theoretical analysis. By examining the spreading influences of model parameters, we find that the outbreak scale can be effectively controlled through increasing the spread rate of awareness or reducing the rate of awareness loss. That is to say, all sorts of media publicity are meaningful. Meanwhile, we find that infection will be affected by consciousness through the control variable.

关键词： Individual movement awareness unawareness global stability

无载体复合酶固定化技术提取革胡子鲶下脚料中的磷脂酰胆碱

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广州化工 2024年第6期52卷 84-87页

作者：刘雪凌陈旭华林贝燕京理工学院河北三河065201 中国农业科学院农产品加工研究所北京100193

鱼类废弃物中含大量的磷脂酰胆碱,为提高磷脂酰胆碱的回收提取率,本研究设计构建了无载体复合酶固定化技术对革胡子鲶鱼内脏中磷脂酰胆碱的提取。该提取体系包含复合酶和戊二醛,研究对戊二醛的浓度、交联pH、交联温度、该固定化复合酶... 详细信息

鱼类废弃物中含大量的磷脂酰胆碱,为提高磷脂酰胆碱的回收提取率,本研究设计构建了无载体复合酶固定化技术对革胡子鲶鱼内脏中磷脂酰胆碱的提取。该提取体系包含复合酶和戊二醛,研究对戊二醛的浓度、交联pH、交联温度、该固定化复合酶的重复利用次数、该固定化酶的保存时间进行的探索研究。单因素实验结果表明,提取体系最佳交联浓度为5%、最佳交联温度为30℃、最佳交联pH为6.5;该固定化酶基本可以重复使用3~4次,保存25天以后提取率就比较低了。另外,通过三因素三水平的正交实验得出酶固定化的最佳组合工艺条件,即交联浓度为7%、交联温度为35℃、交联pH为7.5时的提取率最高。该工艺可为鱼类废弃物提取磷脂酰胆碱积累新技术的经验,为其实现工业化提供有力支持。

关键词：磷脂酰胆碱鱼下脚料无载体酶固定化技术复合酶

Novel conservative treatment for peritoneal dialysis-related hydrothorax:Two case reports

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World Journal of Clinical Cases 2020年第24期8卷 6437-6443页

作者： Bin-Bin Dai bei-Duo lin Li-Yan Yang Jian-Xin Wan Yang-Bin Pan Department of Nephrology The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005Fujian ProvinceChina Department of Nephrology Shanghai Pudong HospitalShanghai 201399China

BACKGROUND Peritoneal dialysis (PD) is an important renal replacement therapy for patientswith end-stage renal disease. PD-related hydrothorax is a rare but seriouscomplication in PD patients, produced by the movement of peritoneal dialysatethrough pleuroperitoneal fistulas. In previous reports, patients with hydrothoraxsecondary to PD were usually recommended to discontinue PD and transfer tohemodialysis (HD). Herein, we describe another method of managing thiscomplication—with an adjusted PD prescription and continuous drainage ofpleural effusion, patients could continue PD without recurrence of *** SUMMARY In this report, we present the medical records of 2 patients with hydrothoraxsecondary to PD. We recommended intermittent PD with continuous drainage ofpleural effusion. A type 18Ga soft catheter was placed to drain pleural ***-guided thoracentesis was performed, and the soft catheter was placedin the pleural cavity for a long period (3 mo and 2 mo, respectively). The pleuralcatheter was removed when no fluid was drained from the pleural cavity. Afterseveral months, pleuroperitoneal fistulas were closed in both patients and PD wascontinued. These patients did not transfer to HD, had no recurrence ofhydrothorax and were still treated with PD after 1 *** These 2 case reports show that continuous drainage of pleural effusion with an18Ga soft catheter is a useful method for hydrothorax secondary to PD.

关键词： Peritoneal dialysis End-stage renal disease Hydrothorax Treatment Conservative Case report

A SEMI-IMPLICIT 3-D NUMERICAL MODEL USING SIGAM-COORDINATE FOR NON-HYDROSTATIC PRESSURE FREE-SURFACE FLOWS

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Journal of Hydrodynamics 2011年第2期23卷 212-223页

作者： HU De-chao FAN bei-lin WANG Guang-qian ZHANG Hong-wu State Key Laboratory of Hydroscience and Engineering Tsinghua University Beijing 100084 China Yangtze River Scientific Research Institute Wuhan 430010 China

A 3-D numerical formulation is proposed on the horizontal Cartesian, vertical sigma-coordinate grid for modeling non-hydrostatic pressure flee-surface flows. The pressure decomposition technique and 0 semi-implicit method are used, with the solution procedure being split into two steps. First, with the implicit parts of non-hydrostatic pressures excluded, the provisional velocity field and free surface are obtained by solving a 2-D Poisson equation. Second, the theory of the differential operator is employed to derive the 3-D Poisson equation for non-hydrostatic pressures, which is solved to obtain the non-hydrostatic pressures and to update the provisional velocity field. When the non-orthogonal sigma-coordinate transformation is introduced, additional terms come into being, resulting in a 15-diagonal, diagonally dominant but unsymmetric linear system in the 3-D Poisson equation for non-hydrostatic pressures. The Biconjugate Gradient Stabilized （BiCGstab） method is used to solve the resulting 3-D unsymmetric linear system instead of the conjugate gradient method, which can only be used for symmetric, positive-definite linear systems. Three test cases are used for validations. The successful simulations of the small-amplitude wave, a supercritical flow over a ramp and a turbulent flow in the open channel indicate that the new model can simulate well non-hydrostatic flows, supercritical flows and turbulent flows.

关键词： 3-D numerical model non-hydrostatic sigma-coordinate semi-implicit pressure-splitting

IMPACTS OF THE SOUTH-TO-NORTH WATER DIVERSION PROJECTS (MIDDLE ROUTE)ON THE WATER ENVIRONMENT OF THE MIDDLE AND LOWER REACHES OF THE HANJIANG RIVER

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水生生物学报 2006年第6期30卷 643-646页

作者： FAN bei-lin, WAN Jian-Rong, ZHANG Jie and lin Qiu-Sheng (Yangtze River Scientific Research Institute,River Research Deparment, Wuhan 430010,China) Yangtze River Scientific Research Institute River Research Deparment Wuhan 430010

In this paper, according to the rule of unbalanced sediment transport and the analysis of field data, different water diversion schemes were theoretically studied, including the erosion and sedimentation trend as well as their impacts on the environment of the middle and lower reaches of the Hanjiang River. The results showed that the 95×10 8m 3 water diversion scheme will cause less erosion and water level decrease than the 15×10 8m 3 water diversion scheme. Using a water diversion scheme of 95×10 8m 3, the decrease of water quantity can impact the river hydrodynamic regime substantially and the environments of the middle and lower reaches of the Hanjiang River will be greatly affected. It is therefore necessary to develop new water resources or build projects to meet the need of the environment and the needs for navigation.

关键词： South-to-North Water Diversion Project River regime Water environment Mathematical model

CCT5在卵巢浆液性囊腺癌组织中的表达及临床意义

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现代肿瘤医学 2024年第10期32卷 1893-1897页

作者：王瑀璇胡悦欣刘鸥萱李馨如曾凯范相成李潇林蓓中国医科大学附属盛京医院妇产科辽宁沈阳110004 辽宁省母胎医学重点实验室辽宁省高校妇产科重点实验室辽宁沈阳110004

目的:探讨CCT5在卵巢浆液性囊腺癌组织中的表达及其与卵巢癌患者临床病理参数和预后的相关性。方法:利用免疫组织化学染色法检测CCT5在50例卵巢浆液性囊腺癌组织、22例卵巢交界性肿瘤组织、25例卵巢上皮性良性肿瘤组织以及9例正常卵巢... 详细信息

目的:探讨CCT5在卵巢浆液性囊腺癌组织中的表达及其与卵巢癌患者临床病理参数和预后的相关性。方法:利用免疫组织化学染色法检测CCT5在50例卵巢浆液性囊腺癌组织、22例卵巢交界性肿瘤组织、25例卵巢上皮性良性肿瘤组织以及9例正常卵巢组织中的表达情况,分析其与卵巢癌患者临床病理参数及预后的相关性。结果:CCT5以细胞浆着色为主。CCT5在卵巢浆液性囊腺癌中的阳性和强阳性表达率(88.0%&72.0%)明显高于良性组(64.0%&28.0%)和正常卵巢组织(66.7%&22.2%)。在卵巢浆液性囊腺癌中,CCT5表达与患者年龄、FIGO分期、肿瘤分化程度和淋巴结转移均无显著相关性(P>0.05)。CCT5表达影响卵巢浆液性囊腺癌患者总生存时间,是影响患者预后的独立危险因素(P<0.05)。结论:CCT5在卵巢浆液性囊腺癌组织中高表达且与患者预后密切相关,有望成为肿瘤筛查和诊断的新型标志物和临床治疗的潜在靶点。

关键词： CCT5 卵巢浆液性囊腺癌免疫组织化学