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一种社交网络虚假信息传播控制方法

计算机研究与发展 2012年第S2期49卷 131-137页

作者：王永刚蔡飞志 eng Keong Lua 胡建斌陈钟高可信软件技术教育部重点实验室(北京大学) 北京100871 网络和软件安全保障教育部重点实验室(北京大学) 北京100871 北京大学信息科学技术学院软件研究所北京100871 莫纳什大学信息技术学院

针对社交网络中日渐泛滥的虚假信息,提出了一种社交网络虚假信息传播控制方法Fidic,针对社交网络中虚假信息传播时途经的用户序列,该方法基于PageRank的思想并结合用户传播虚假信息时的指向关系来对用户进行评级,用户的评级越高表明其... 详细信息

针对社交网络中日渐泛滥的虚假信息,提出了一种社交网络虚假信息传播控制方法Fidic,针对社交网络中虚假信息传播时途经的用户序列,该方法基于PageRank的思想并结合用户传播虚假信息时的指向关系来对用户进行评级,用户的评级越高表明其在虚假信息传播过程中起到的作用越大.该方法通过控制高评级用户的传播行为从而缩小虚假信息传播的覆盖面,最终达到遏制甚至消除虚假信息传播的目的.实验证明该方法既可以获得较高的精度,而且方便可行,具有较高实用价值.

关键词：社交网络虚假信息 PageRank 传播控制

Predicting factors for the need of extracorporeal membrane oxygenation for suicide attempts by cardiac medication:a single-center cohort study

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World Journal of Emergency Medicine 2022年第4期13卷 283-289页

作者： David Vandroux Thomas Aujoula. Bernard-Alex Gaüzère Bérénice Puech Bertrand Guihard Olivier Martinet Intensive Care Unit Félix Guyon HospitalUniversity Teaching Hospital of La Réunion97400 Saint DenisReunion IslandFrance Cardiosurgical Intensive Care Unit Dupuytren II HospitalUniversity Teaching Hospital of Limoges87042 LimogesFrance UMR 1094 Neuro-épidémiologie Tropicale University of Limoges87042 LimogesFrance Cardiovascula. Anesthesia Department Félix Guyon HospitalUniversity Teaching Hospital of La Réunion97400 Saint DenisReunion IslandFrance Service d’Aide Médicale d’Urgence Félix Guyon HospitalUniversity Teaching Hospital of La Réunion97400 Saint DenisReunion IslandFrance

BACKGROUND:Severe poisoning due to the overdosing of cardiac drugs can lead to cardiovascula. *** order to decrease the mortality rate,the most severe patients should be transferred as quickly as possible to an extracorporeal membrane oxygenation(ECMO)***,the predictive factors showing the need for venous-arterial ECMO(VA-ECMO)had never been ***:A retrospective,descriptive,and single-center cohort *** consecutive patients admitted in the la.gest ICU of Reunion Isla.d(Indian Ocean)between January 2013 and September 2018 for beta-blockers(BB),calcium channel blockers(CCB),renin-angiotensin-aldosterone system blockers,digoxin or anti-arrythmic intentional poisonings were *** implementation was the primary ***:A total of 49 consecutive admissions were *** patients had ECMO,39 patients did not have *** patients in ECMO group died,while no patients in the conventional group *** most relevant ECMO-associated factors were pulse pressure and heart rate at first medical contact and pulse pressure,heart rate,arterial la.tate concentration,liver enzymes and left ventricula. ejection fraction(LVEF)at *** pulse pressure at first medical contact and LVEF were significant after logistic ***:A transfer to an ECMO center should be considered for a pulse pressure<35 mmHg at first medical contact or LVEF<20%on admission to ICU.

关键词： Extracorporeal membrane oxygenation Implementation Cardiac medication Overdose Predicting factor

SHORT FATIGUE CRACK PARAMETER BASED ON THE TOTAL CRACK AREA

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Acta Metallurgica Sinica(english Letters) 2001年第4期14卷 235-240页

作者： z.X. Wu and X. C. Wu engineering College, Yangzhou University, Yangzhou 225009, China eng. Coll. Yangzhou Univ. Yangzhou 225009 China

The progressive fatigue damage of a material is closely rela.ed to the whole popula.ion of cracks on its surface. In order to understand which parameter is a more useful indicator of fatigue damage, rotatory bending fatigue tests were carried out using smooth specimens of medium-carbon steel. The behavior of short crack propagation during fatigue was examined and a new parameter total crack area was suggested. The aim of this paper is to extend the research on fatigue damage in the already studied steel and to study how these damage parameters are correla.ed with the process of fatigue damage in order to evaluate the effectiveness of damage detection methods.

关键词： Bending strength Crack initiation Crack propagation Fatigue testing Parameter estimation

HEAT TREATMENT STRengTHENING EFFECTS OF RARE EARTHS ON Mg-9Al ALLOY

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Acta Metallurgica Sinica(english Letters) 2003年第1期16卷 8-14页

作者： Y.S.Wang J.z.Yu Q.D.Wang W.J.Ding Shanghai Automobile Accessory Co. Shanghai 200083 China Sch. of Mat. Sci. and eng. Shanghai Jiaotong Univ. Shanghai 200030 China

Mg-9Al-xRE magnesium alloys were studied, where, x is 0, 0.4. 0.8. 1.2 and 1.6% (in weight percent, wt%), respectively. Influence of rare earths (RE) on micro structure. and strength in both T4 (solute heat treatment) and T6 (solute heat treatment and artificial ageing treatment) were investigated. Strength of specimen was tested at ambient temperature. The micro structure was analyzed by optical microscopy, scanning electron microscopy (SEM) and X-ray diffraction analysis. RE additions improved T4 tensile strength of the treated alloys. Small addition (0.4wt%) of RE greatly improved the strength of ageing treated (T6) Mg-9Al alloy, but further additions caused decreasing.

关键词： Mg-Al alloy rare earth (RE) heat treatment mechanical property strength

IMPROVEMENT OF CARBIDE MORPHOLOGY ANDMECHANICAL PROPERTIES OF Cr12MoV STEELS

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Acta Metallurgica Sinica(english Letters) 2000年第5期13卷 1053-1058页

作者： Cui, X.H. Jiang, Q.C. Wang, S.Q. He, z.M. Sch. of Mat. Sci. and eng. Jilin Univ. of Technol. Changchun 130025 China

Compared with conventional cast Cr12MoV steel and forged Cr12MoV steels, carbide morphology and properties of modified cast Cr12MoV steels were investigated by performing hardness test, impact test, fracture toughness test, fatigue crack propagation test, metallographic examination and quantitatively metallographic analysis. The results indicate that the carbide morphology in modified cast steel is characterized by uniformly-distributed granula. carbide, which is different from that of conventional cast steel, but simila. to that of forged steel. the impact toughness of modified cast steel is distinctly increased to 12.75 J/cm2 from 6.8 J/cm2 in the conventional cast steel with networked carbide, because of carbide granula.ion. Furthermore, The fracture toughness and fatigue-crack-propagation threshold of modified cast steel are not only higher than that of the conventional cast steel, but also higher than that of the forged steels.

关键词： Alloys Carbides Mechanical properties Morphology

MORE　FACILE　SYNTHESES　TO　THE　SEX　PHEROMONE　COMPONENTS　OF　THE　WINTER　MOTH（OPEROPHTERABRUMATAL．（LEPIDOPTERA：GEOMETRIDAE）：（3z，6z，9z）－3，6，9－NONADECATRIENE，（6z，9z）－6，9－NONADECADIENE

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Chinese Chemical Letters 1994年第1期5卷 5-8页

作者： Bao Ming Xu Liang Fn HUANG Shu Xiang SHAN and Xue You zHU(Departmnt of Biotechnoleqy, Sichuan University, Chengdu 610064)(Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences,345 Linqling Lu, Shanghai z00032)(Present address:Chemical eng

Two sex pheromone components of the winter moth (Operophtera brumata L.(Lepidoptera: Geometridae)), (3z, 6z, 9z)-3, 6,9-nonadecatriene and (6z, 9z ) -6.9- nonadecadiene, were conveniently synthesized via the copper(Ⅰ) catalyzed coupling reaction of substituted propargylic tosyla.e and 1-alkyne under the aolid-liquid phase transfer condition.

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Human iPS Cells Loaded with MnO2-Based Nanoprobes for Photodynamic and Simultaneous Enhanced Immunotherapy Against Cancer

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Nano-Micro Letters 2020年第10期12卷 36-52页

作者： Yanlei Liu Jingxing Yang Bin Liu Wen Cao Jingpu zhang Yuming Yang Lijun Ma Jesus Martinez de la.Fuente Jie Song Jian Ni Chunfu zhang Daxiang Cui Institute of Nano Biomedicine and engineering Key Laboratory for Thin Film and Microfabrication of Ministration of EducationShanghai Engineering Research Centre for Intelligent Diagnosis and Treatment InstrumentDepartment of Instrument Science and EngineeringSchool of Electronic Information and Electrical EngineeringShanghai Jiao Tong University800 Dongchuan RoadShanghai 200240People’s Republic of China National engineering Center for Nanotechnology Shanghai 200240People’s Republic of China Department of Nuclear Medicine Rui Jin HospitalSchool of Biomedical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Scientific Research Center Shanghai Public Health Clinical CenterFudan UniversityShanghai 201508People’s Republic of China Tongren Hospital Shanghai Jiao Tong University School of Medicine1111 XianXia RoadShanghai 200336People’s Republic of China

How to trigger strong anti-tumor immune responses has become a focus for tumor ***,we report the human-induced pluripotent stem cells(iPSs)to deliver MnO2@Ce6 nanoprobes into tumors for simultaneous photodynamic therapy(PDT)and enhanced ***6 photosensitizer was attached on manganese dioxide(MnO2)nanoparticles,and resultant MnO2@Ce6 nanoprobes were delivered into mitomycin-treated iPSs to form iPS-MnO2@Ce6 *** iPS-MnO2@Ce6 actively targeted in vivo tumors,the acidic microenvironment triggered interaction between MnO2 and H2O2,released la.ge quantities of oxygen,alleviated hypoxia in *** PDT,singlet oxygen formed,broken iPSs released tumor-shared antigens,which evoked an intensive innate and adaptive immune response against the tumor,improving dendritic cells matured,effector T cells,and natural killer cells were ***,regula.ory T cells were reduced,and then the immune response induced by iPS-MnO2@Ce6 was markedly stronger than the immune reaction induced by MnO2@Ce6(Pla.ional prospect.

关键词： Human iPS MnO2@Ce6 nanoprobes Photodynamic therapy Immunotherapy Cancer

基于PageRank算法及Mplus因子分析探讨杨霓芝教授诊治IgA肾病规律

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世界科学技术-中医药现代化 2024年第3期26卷 581-590页

作者：卢家言张腊胡晓璇凌曦淘于浩天梁紫越卢佐宸侯海晶卢富华杨霓芝广州中医药大学第二临床医学院广州510006 广东省中医院/广州中医药大学第二附属医院广州510120 广州中医药大学公共卫生与管理学院广州510006 粤港澳中医药与免疫疾病研究联合实验室广州510120

目的本研究旨在多层次分析名老中医诊治IgA肾病的临床经验,为传承中医肾病名医经验提供方法参考。方法采集并标准化广东省中医院杨霓芝教授门诊在2010—2020年期间诊治IgA肾病患者的医案数据,并将患者分为尿血组、尿浊组及肾衰组。利用F... 详细信息

目的本研究旨在多层次分析名老中医诊治IgA肾病的临床经验,为传承中医肾病名医经验提供方法参考。方法采集并标准化广东省中医院杨霓芝教授门诊在2010—2020年期间诊治IgA肾病患者的医案数据,并将患者分为尿血组、尿浊组及肾衰组。利用FangNet平台进行PageRank算法计算药物THScore得到不同亚组IgA肾病核心药物。通过Python(SciPy包、Clusterheatmap包)可视化证型分布规律及相应用药规律,应用Mplus软件使用加权最小二乘估计法及斜交旋转GEOMIN法进行药物处方探索性及验证性因子分析。结果总共纳入145例IgA肾病患者,共548诊次。其中尿血组54例、尿浊组51例及肾衰组40例。基本证型有9种,含气虚证(91.79%)、血瘀证(77.01%)、湿热证(66.06%)及阴虚证(38.69%)等。总队列核心药物24种,尿血组23种,尿浊组21种,肾衰组16种,主要为益气补阳药、滋阴养血药、活血祛瘀药、清热凉血药等。IgA肾病辨证用药规律(z-Score>0.5且P<0.05):气虚证常用药物:黄芪、山茱萸、菟丝子。血瘀证常用药物:丹参、泽兰、山茱萸等。湿热证常用药物:蒲公英、石韦、桃仁、土茯苓等。阴虚证常用药物:墨旱莲、太子参、女贞子等。根据探索性及验证性因子分析的结果,可以得出杨霓芝教授治疗IgA肾病核心药物组合因子包括:F1(菟丝子、山茱萸、黄芪);F2(白茅根、小蓟、茜草);F3(女贞子、墨旱莲、太子参);F4(泽兰、桃仁)。结论本研究通过应用PageRank算法及Mplus因子分析,分组分析杨霓芝教授诊治IgA肾病经验,明确以“气虚血瘀、湿热阴虚”为核心证型,“益气活血、清热养阴”为核心治法的IgA肾病岭南中医诊治心得,为传承名医经验提供方法参考,促进中医药的开发利用。

关键词：因子分析 PageRank算法 IgA肾病名老中医经验

Study of an Innovative Sola. Desiccant Cooling System Producing both Dry Air and Chilled Water

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Study of an Innovative Solar Desiccant Cooling System Produc...