云南高校图书馆联盟文献共享服务平台- LOGNORMAL

LOGNORMAL: 作品数：42被引量：57H指数：4; 导出分析报告; 相关作者：曾攀俞新陆黄源何怡刚朱正东更多>>; 相关机构：清华大学合肥工业大学西安电子科技大学云南大学更多>>; 相关期刊：《长江科学院院报》《The Journal of China Universities of Posts and Telecommunications》《Science China Mathematics》《吉林大学学报（信息科学版）》更多>>; 相关基金：国家自然科学基金国家高技术研究发展计划中国科学院知识创新工程总装备部科研项目更多>>

Weighted semidefinite programming scheme for wireless positioning with lognormal shadowing: 《The Journal of China Universities of Posts and Telecommunications》2023年第5期93-100,共8页Tian Kegang Xu Wenbo Wang Siye Chen Xiangsen; supported by the National Natural Science Foundation of China(61871050)。; Received signal strength(RSS)based positioning schemes ignore the actual environmental feature that the volatility of RSS increases as signal propagation distance grows.Therefore,RSS over long distance generally has r...; 关键词：LOCALIZATION received signal strength(RSS) semidefinite programming(SDP) lognormal shadowing

Seismic loss assessment of RC high-rise buildings designed according to Eurocode 8: 《Earthquake Engineering and Engineering Vibration》2023年第3期807-824,共18页Jelena Pejovic Nina Serdar; A probabilistic seismic loss assessment of RC high-rise(RCHR)buildings designed according to Eurocode 8 and located in the Southern Euro-Mediterranean zone is presented herein.The loss assessment methodology is based ...; 关键词：RC high-rise buildings seismic loss assessment loss functions nonlinear time-history analysis(NLTHA) cumulative lognormal probability distribution random effects Eurocode 8

Comparison of Cox proportional hazards model,Cox proportional hazards with time-varying coefficients model,and lognormal accelerated failure time model:Application in time to event analysis of melioidosis patients被引量：1: 《Asian Pacific Journal of Tropical Medicine》2022年第3期128-134,共7页Kamaruddin Mardhiah Nadiah Wan-Arfah Nyi Nyi Naing Muhammad Radzi Abu Hassan Huan-Keat Chan; Objective:To compare the prognostic factors of mortality among melioidosis patients between lognormal accelerated failure time(AFT),Cox proportional hazards(PH),and Cox PH with time-varying coefficient(TVC)models.Meth...; 关键词：Cox proportional hazards TIME-DEPENDENT TIME-VARYING Accelerated failure time survival analysis LOGNORMAL Parametric model TIME-TO-EVENT MELIOIDOSIS Mortality

Study on Backward Scattering Characteristics of Submicron Particles: 《Optics and Photonics Journal》2020年第5期79-87,共9页Keliang Hou Chunwei Wang Xiang Liu; In production and scientific research, the research on the characteristics of submicron particles has attracted extensive attention, which is of great significance to the development of industrial production, medical ...; 关键词：BACKWARD SCATTERING SUBMICRON PARTICLES LOGNORMAL DISTRIBUTION

Parametric and Non-Parametric Analysis of the Survival Times of Patients with Multiple Myeloma Cancer被引量：1: 《Open Journal of Applied Sciences》2020年第4期118-134,共17页Lohuwa Mamudu Chris P. Tsokos; Multiple myeloma (MM) is a type of cancer that remains incurable. In the last decade, most research into MM has focused on investigating the improvement in the therapeutic strategy. Our study assesses the survival pro...; 关键词：Multiple MYELOMA CANCER Three-Parameter LOGNORMAL Kaplan-Meier Maximum LIKELIHOOD Estimation Health Science

复合Weibull-Lognormal衰落下的能量检测性能分析: 《宁夏大学学报（自然科学版）》2019年第4期297-302,共6页韩彦博高丽; 国家自然科学基金资助项目(61461024);甘肃省高原交通信息工程及控制重点实验室开放课题(20161106); 信道模型选择过于简单将导致性能评估结果不准确或误导.为了克服这一缺陷,在更准确完备且贴合实际的复合Weibull-Lognormal(WL)衰落信道模型下研究能量检测性能.针对复合WL衰落下接收机输出信噪比概率密度函数(PDF)难以给出精确表达式...; 关键词：频谱感知能量检测复合Weibull-Lognormal衰落

循环孔隙水压力作用对混凝土动态抗压特性的影响被引量：2: 《长江科学院院报》2019年第6期110-115,共6页肖洋彭刚吴聪乔宗耀马小亮; 国家自然科学基金项目(51579139,51709155); 为研究混凝土在经历循环孔隙水压力后的力学性能,利用 10MN大型多功能液压伺服静动力三轴仪,进行了常规三轴混凝土动静力加载试验,采用 Weibull Lognormal模型和规范推荐的模型对应力-应变全曲线进行拟合对比分析。试验结果表明:经历循...; 关键词：混凝土循环孔隙水压动态抗压应变速率 Weibull Lognormal模型

室内弱阴影环境下L~N模型参数估计及实验验证: 《云南大学学报（自然科学版）》2019年第2期259-267,共9页蔡傲袁洪刘博文; 国家自然科学基金(61561051); 针对描述弱阴影信道的L^N模型未对模型进行参数估计及实用性验证的问题,对该模型进行参数估计,最后验证模型的准确性和灵活性.首先利用矩估计法估计该模型的参数,并在室内弱阴影散射多径环境下进行体域网实验测量得到原始数据,然后用滑...; 关键词：LN模型参数估计矩估计法统计特性 Lognormal模型

A Model for the Mass-Growth of Wild-Caught Fish被引量：1: 《Open Journal of Modelling and Simulation》2019年第1期19-40,共22页Katharina Renner-Martin Norbert Brunner Manfred Kühleitner Werner-Georg Nowak Klaus Scheicher; The paper searched for raw data about wild-caught fish, where a sigmoidal growth function described the mass growth significantly better than non-sigmoidal functions. Specifically, von Bertalanffy’s sigmoidal growth ...; 关键词：GROWTH Models Described by the von Bertalanffy-Pütter Differential Equation MODEL Selection USING the Akaike Information Criterion Maximum LIKELIHOOD Fit Based on a LOGNORMAL Distribution of Mass Optimization USING Simulated Annealing

Seismic fragility curves for structures using non-parametric representations被引量：3: 《Frontiers of Structural and Civil Engineering》2017年第2期169-186,共18页Chu MAI Katerina KONAKLI Bruno SUDRET; Fragility curves are commonly used in civil engineering to assess the vulnerability of structures to earthquakes. The probability of failure associated with a prescribed criterion （e.g., the maximal inter-storey drif...; 关键词：earthquake engineering fragility curves lognormal assumption non-parametric approach kernel density estimation epistemic uncertainty

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