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第五届中国卫星导航学术年会

作者： fengli ruan Zhongliang Deng Qian An Keji Wang Xiaoyang Li School of Electronic Engineering.Beijing University of Posts and Telecommunications

Compared with Outdoor Vehicle Navigation,personal motion state is more complex.The spatial distribution of indoor space environment is relatively complex.The attributes of the room is different from the corridor.This paper studies indoor map matching technology based on personal motion state.The indoor environment abstract space model theory is proposed,in which the Spatial Data of indoor map is studied in detail.The information of the Inertial Measurement Unit from the mobile terminal is combined with the abstract space model to further correct the wireless positioning results.For each compact structure region of indoor space environment and multiple personnel movement state,the method of map-matching proposed in this paper is combined with personnel movement direction,wireless location results and IMU.The optimal positioning point estimation is generated by probabilistic matching algorithm.The proposed map-matching can further restrain the indoor positioning error,and for indoor wireless coverage blind spots,this method can protect the continuity of navigation,improve user experience in indoor positioning and navigation.

关键词： Indoor Positioning.Map Matching.Inertial Measurement Unit（IMU）.Indoor abstract space model

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Indoor positioning Algorithms based on multidimensional information

Indoor positioning Algorithms based on multidimensional info...

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第五届中国卫星导航学术年会

作者： Qian An Zhongliang Deng Xiaohong Zhao Keji Wang fengli ruan School of Electronic Engineering Beijing University of Posts and Telecommunications

With the development of internet,the LBS market will increase fast.Outdoor LBS has been widely used with the support of four satellite navigation system.Indoor positioning technology as an important field of location service has get more and more attention of people.The positioning technology based on wireless network make up for the deficiency of the existing navigation system.With a wide range and low cost of application,the mobile base station signal is of high popularization value in study indoor positioning technology.In this paper,a certain amount of feature points are collected which contains multi- dimensional characteristic information such as Time Difference of Arrival（TDOA） and Received Signal Strength Indication（RSSI） and so on,then make pre-processing of multidimensional positioning information of feature points by signal path division filtering,and then choose specific feature points by matching multidimensional information,these selected points are used to revise positioning information received,and calculate positioning coordinates by Newton iteration method.Meter-level position precision can be reached through the positioning mechanism talked above.

关键词： Indoor position Feature Points multi-dimensional characteristic information Newton’s Iterative Method

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Pedestrian Dead Reckoning in Handheld Terminal with Inertial Measurement Unit

Pedestrian Dead Reckoning in Handheld Terminal with Inertial...

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第五届中国卫星导航学术年会

作者： Keji Wang Zhongliang Deng Shengmei Luo Yanpei Yu fengli ruan Beijing University of Posts and Telecommunications Zhongxing Telecom Equipment

In this paper,using the pedestrian dead reckoning algorithm based accelerometer and electronic compass composition IMU to assist indoor positioning.Detection pedestrians step length and walking status.Currently detect direction of motion requires the user wear or holding IMU with a fixed posture,To address this issue,proposed terminal gesture recognition algorithm to solve cognitive difficulties problems of direction of movement when handheld terminal with any posture,to get the correct direction of movement.Then combination step count values,step length,direction of movement and wireless positioning results,this system can effectively improve the positioning performance.

关键词： Pedestrian dead reckoning PDR.Inertial navigation.Indoor positioning

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甲状腺髓样癌复发或转移的影响因素

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中华医学杂志 2022年第48期102卷 3849-3855页

作者：郭丰丽李利娟阮先辉伏桂明赵敬柱候秀坤高明郑向前天津医科大学肿瘤医院甲状腺头颈肿瘤科国家恶性肿瘤临床医学研究中心天津市恶性肿瘤临床医学研究中心天津市肿瘤防治重点实验室天津300060 天津市人民医院乳腺甲状腺外科天津市普通外科学重点建设学科实验室天津300121

目的:探讨甲状腺髓样癌(MTC)复发或转移的危险因素及无病生存期(DFS)的影响因素。方法:回顾性分析2014年8月至2019年8月在天津医科大学肿瘤医院就诊并进行手术的MTC患者的临床病理资料,根据随访中有无复发或转移分为复发或转移组与无复... 详细信息

目的:探讨甲状腺髓样癌(MTC)复发或转移的危险因素及无病生存期(DFS)的影响因素。方法:回顾性分析2014年8月至2019年8月在天津医科大学肿瘤医院就诊并进行手术的MTC患者的临床病理资料,根据随访中有无复发或转移分为复发或转移组与无复发或转移组。通过多因素logistic回归模型分析复发或转移的危险因素,Kaplan-Meier生存分析及Cox回归模型分析DFS的影响因素。结果:共纳入158例MTC患者,女83例,男75例,中位年龄52岁(19~74岁)。散发型MTC 146例(92.4%),家族遗传型MTC 12例(7.6%)。甲状腺双侧病灶33例(20.9%),多病灶57例(36.1%)。中位随访时间59.7个月(10.0~93.0个月),中位DFS为55.5个月(0~92.9个月)。25例(15.8%)出现复发或转移,11例(7.0%)死亡。肿瘤多发病灶、最大肿瘤长径>2 cm、T3/4、N1b、Ⅲ/Ⅳ期、淋巴结转移比率(LNR)>0.3、术前血清降钙素>2 000 ng/L、术后血清降钙素>40 ng/L、未获生化治愈均与MTC的复发或转移及DFS具有相关性(均 P2 cm( OR=5.81,95% CI:1.01~33.33, P=0.049)、多发病灶( OR=3.64,95% CI:1.03~12.88, P=0.045)和术后血清降钙素>40 ng/L( OR=15.03,95% CI:1.39~162.61, P=0.026)是复发或转移的危险因素。临床分期Ⅲ/Ⅳ期( HR=19.39,95% CI:1.40~268.19, P=0.027)、最大肿瘤长径>2 cm( HR=3.64,95% CI:1.02~13.02, P=0.047)和术后血清降钙素>40 ng/L( HR=10.68,95% CI:1.34~84.95, P=0.025)是DFS的影响因素。结论:MTC初始治疗时较大的肿瘤长径、较高的临床分期及术后较高的血清降钙素水平是复发或转移的危险因素,也是DFS的影响因素。

关键词：甲状腺肿瘤甲状腺髓样癌复发肿瘤转移无病生存期随访研究

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维普期刊数据库

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室内定位中融合IMU的地图匹配算法研究与实现

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数字通信世界 2014年第S2期 8-11页

作者：阮凤立安倩王克己李晓阳北京邮电大学北京100876

与室外车辆导航系统相比,室内中行人的运动状态相对于车辆来说更加复杂,本文中提出了融合IMU的室内地图匹配算法,主要研究了基于运动状态的室内地图匹配技术,将室内环境抽象为空间模型,结合空间模型要素对定位结果进一步纠正。本文提出... 详细信息

与室外车辆导航系统相比,室内中行人的运动状态相对于车辆来说更加复杂,本文中提出了融合IMU的室内地图匹配算法,主要研究了基于运动状态的室内地图匹配技术,将室内环境抽象为空间模型,结合空间模型要素对定位结果进一步纠正。本文提出的地图匹配技术针对室内环境各空间区域结构紧密,人员运动状态复杂的问题,将人员运动状态、无线定位与IMU组合定位结果与室内地理信息数据融合,通过地图匹配对室内定位误差进一步进行约束,对于室内无线信号覆盖盲区,能保障定位导航的连续性,提升室内定位导航的用户体验。

关键词：室内定位地图匹配 IMU 室内空间结构模型

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维普期刊数据库

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A Super Pan-Genomic Landscape of Rice

A Super Pan-Genomic Landscape of Rice

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首届植物科学前沿学术大会

作者： Lianguang Shang Xiaoxia Li Huiying He Qiaoling Yuan Yanni Song Zhaoran Wei Hai Lin Min Hu fengli Zhao Chao Zhang Yuhua Li Hongsheng Gao Tianyi Wang Xiangpei Liu Hong Zhang Ya Zhang Shuaimin Cao Xiaoman Yu Bintao Zhang Yong Zhang Yiqing Tan Mao Qin Cheng Ai Yingxue Yang Bin Zhang Zhiqiang Hu Hongru Wang Yang Lv Yuexing Wang Jie Ma Quan Wang Hongwei Lu Zhe Wu Shanlin Liu Zongyi Sun Hongliang Zhang Longbiao Guo Zichao Li Yongfeng Zhou Jiayang Li Zuofeng Zhu Guosheng Xiong Jue ruan Qian Qian Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural Sciences State Key Laboratory for Agrobiotechnology National Center for Evaluation of Agricultural Wild Plants (Rice)Key Laboratory of Crop Heterosis and Utilization (MOE)College of Agronomy and BiotechnologyDepartment of EntomologyCollege of Plant ProtectionChina Agricultural University Academy for Advanced Interdisciplinary Studies Plant Phenomics Research CenterNanjing Agricultural University Department of Plant and Microbial Biology University of CaliforniaBerkeley Department of Integrative Biology UC Berkeley State Key Laboratory of Rice Biology China National Rice Research Institute Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes Institute of Plant and Food ScienceDepartment of BiologySchool of Life SciencesSouthern University of Science and Technology State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of Sciences

Pan-genomes from large natural populations can capture genetic diversity and reveal genomic complexity.Using de novo long-read assembly,we generated a graphbased super pan-genome of a 251-accession panel comprising both cultivated and wild species of Asian and African rice.Our pan-genome reveals extensive structural variations(SVs) and gene presence/absence variations.Additionally,our pan-genome enables the accurate identification of nucleotide-binding leucine-rich repeat genes and characterization of their inter-and intraspecific diversity.Moreover,we uncovered grain weight-associated SVs which specify traits by affecting the expression of their nearby genes.We characterized genetic variants associated with submergence tolerance,seed shattering and plant architecture and found independent selection for a common set of genes that drove adaptation and domestication in Asian and African rice.This super pan-genome facilitates pinpointing of lineage-specific haplotypes for trait-associated genes and provides insights into the evolutionary events that have shaped the genomic architecture of various rice species.

关键词： rice pan-genome NLR QTL SV domestication

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