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OsBLS6.2:A rice bacterial leaf streak resistance gene identified by GWAS and RNA-seq

第40届中国控制会议

作者： Jiaqi Fan tianjiao huo Zhenqi Wei Jiachen Wang Xin Li Bingzhao Gao State Key Laboratory of Automotive Simulation and Control Jilin University College of Computer Science and Technology Jilin University Clean Energy Automotive Engineering Center Tongji University

With the development of autonomous driving vehicle target detection technology, multi-target detection in complex environment has gradually become the focus of attention. In this paper, based on the YOLOv4 algorithm, the target detection problem is carried out on the images from different time periods in the training and test set. Firstly, we train the unsupervised CycleGAN model to get some synthetic images at night. Secondly, these synthetic night images combined with the images collected in the sunny weather are input to train the YOLOv4 detector and then the final model is used to detect the targets at night. The experimental results show that the detection accuracy of our model for car, person and traffic sign is improved by 3.65%, 4.29% and 5.42% respectively when compared to the baseline model, that is, only training the images from the daytime and testing the targets during the night. In addition, the recall values of these three targets are all increased by more than 5%,which indicates that our model reduces the missing detection rate. The above experimental results have fully demonstrated the effectiveness of the combination of supervised and unsupervised algorithm for target detection cross different time periods. And the proposed model greatly improves the safety of the autonomous driving vehicles, which is of great significance for target detection in the road.

关键词： YOLOv4 CycleGAN Cross Domain Detection Transfer Learning Unsupervised Algorithm

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The Crop Journal 2023年第6期11卷 1862-1871页

作者： Huabin Xie Chunzi Lin Wenyu Lu Zhikai Han Danhong Wei Xing huo tianjiao Li Jian Zhang Yongqiang He Chun Chen Hui Wang Tao Guo Jiafeng Wang National Engineering Research Center of Plant Space Breeding Guangdong Key Laboratory of Plant Molecular BreedingSouth China Agricultural UniversityGuangzhou 510642GuangdongChina Guangdong Key Laboratory of New Technology in Rice Breeding Guangdong Rice Engineering LaboratoryRice Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640GuangdongChina Guangxi Key Laboratory of Agro-environment and Agro-products Safety College of AgricultureGuangxi UniversityNanning 530004GuangxiChina

Bacterial leaf streak(BLS),caused by Xanthomonas oryzae ***(Xoc),is a bacterial disease affecting rice production in Asia and Africa,whose severity is expected to increase with climate *** of new quantitative-trait loci(QTL)or resistance genes for BLS resistance is essential for developing resistant rice.A genome-wide association study to identify QTL associated with BLS resistance was conducted using phenotypic and genotypic data from 429 rice *** 47 QTL identified,45 were novel and two co-localized with previously reported QTL or genes conferring BLS ***6.2 on chromosome 6 explained the greatest phenotypic *** analysis of differential expression and annotations of predicted genes near qBLS6.2 based on haplotype and disease phenotype identified OsBLS6.2(LOC_Os06g02960)as a candidate gene for ***6.2 knockout plants showed higher resistance to Xoc than wild-type *** other candidate genes for resistance to Xoc were identified.

关键词： Rice Bacterial leaf streak Xanthomonas oryzae pv.oryzicola Genome-wide association study RNA sequencing

Dynamic Changes of ORF1ab and N Gene Ct Values in COVID-19 Omicron Inpatients of Different Age Groups—Beijing Municipality,China,November-December 2022

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China CDC weekly 2023年第8期5卷 180-183,I0001页

作者： Qing Zhang Zhaomin Feng Yiwei Hao Lirong Wei Aibin Wang Zhixing Han Meimei Tian Sheng Sun Xin'gang Li tianjiao Xue Xiangjing Kong Baoliang Li Cheng Kou Quanyi Wang Da huo Linghang Wang Beijing Ditan Hospital Capital Medical UniversityBeijingChina Beijing Center for Disease Prevention and Control BeijingChina School of Public Health Capital Medical UniversityBeijingChina Beijing Municipal Key Laboratory of Clinical Epidemiology BeijingChina

Introduction:In November 2021,the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)Omicron variant was identified as the variant of concern and has since spread globally,replacing other cocirculating *** better understand the dynamic changes in viral load over time and the natural history of the virus infection,we analyzed the expression of the open reading frames 1ab(ORF1ab)and nucleocapsid(N)genes in patients infected with ***:We included patients initially admitted to the hospital for SARS-CoV-2 infection between November 5 and December 25,*** collected daily oropharyngeal swabs for quantitative reverse transcriptase-polymerase chain reaction tests using commercial *** depicted the cycle threshold(Ct)values for amplification of ORF1ab and N genes from individual patients in age-specific groups in a time ***:A total of 480 inpatients were included in the study,with a median age of 59 years(interquartile range,42 to 78;range,16 to 106).In the<45-year-old age group,the Ct values for ORF1ab and N gene amplification remained below 35 for 9.0 and 11.5 days,*** the≥80-year-old age group,the Ct values for ORF1ab and N genes stayed below 35 for 11.5 and 15.0 days,respectively,which was the longest among all age *** Ct values for N gene amplification took longer to rise above 35 than those for ORF1ab gene ***:The time to test negative varied among different age groups,with viral nucleic acid shedding taking longer in older age groups compared to younger age *** a result,the time to resolution of Omicron infection increased with increasing age.

关键词： patients admitted younger

基于开放公文的新冠肺炎政策知识图谱构建与分析

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档案学通讯 2021年第2期 53-62页

作者：霍朝光钱毅祁天娇中国人民大学信息资源管理学院中国人民大学数字人文研究中心北京100872

新冠肺炎防疫期间面向公众开放的公文是公众获取政策动向的重要渠道,是党政机关部门处理疫情公共事务的重要记录和证据,是重大公共卫生事件归档和研究的重要信息资源。基于11506份开放公文,构建新冠肺炎政策知识图谱,一方面可通过图数... 详细信息

新冠肺炎防疫期间面向公众开放的公文是公众获取政策动向的重要渠道,是党政机关部门处理疫情公共事务的重要记录和证据,是重大公共卫生事件归档和研究的重要信息资源。基于11506份开放公文,构建新冠肺炎政策知识图谱,一方面可通过图数据库的形式对疫情相关政策公文进行归档存储和关联组织,另一方面可追溯法律渊源、透视权力协同、监督政策焦点,为公共事务应急管理决策提供支持,通过开放公文知识图谱化的方式赋能后疫情社会。面对新冠肺炎等重大卫生事件,应建立防疫行政公文应急归档机制,构建知识图谱维护开放公文的关联性,强化知识图谱在决策支持与公众服务中的智能应用。

关键词：新冠肺炎防疫政策公文知识图谱政策计量

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常州市灾害性天气查询系统

气象科技 2009年第4期37卷 457-461页

作者：董芹霍焱董喜春马天骄江苏省常州市气象局常州213001

为帮助预报员全面学习和系统掌握常州地区灾害性天气变化规律，进一步提高对灾害性天气的预报能力，将常州地区1974-2007年发生的暴雨、寒潮、台风等5种常见灾害性天气所对应的高低空形势、地面形势、台风路径、卫星云图、多普勒雷达回... 详细信息

为帮助预报员全面学习和系统掌握常州地区灾害性天气变化规律，进一步提高对灾害性天气的预报能力，将常州地区1974-2007年发生的暴雨、寒潮、台风等5种常见灾害性天气所对应的高低空形势、地面形势、台风路径、卫星云图、多普勒雷达回波以及实况、灾情等资料进行汇总和整编，建立了基于Web网页形式、多功能灾害性天气电子档案查询系统。该系统实现了灾害天气资料查询的自动化，填补了常州地区无完整灾害性天气档案的空白。该系统针对性强，界面美观、易于操作、查询快捷，具有较强的实用性。

关键词：灾害性天气气象信息服务 Web网页查询系统

古龙页岩油高温高压注CO_(2)驱动用效果

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大庆石油地质与开发 2024年第1期43卷 42-51页

作者：李斌会邓森张江曹胜郭天娇徐全霍迎冬多资源协同陆相页岩油绿色开采全国重点实验室黑龙江大庆163712 中国石油大庆油田有限责任公司勘探开发研究院黑龙江大庆163712 黑龙江省油层物理与渗流力学重点实验室黑龙江大庆163712

为了明确古龙页岩油高温高压注CO_(2)驱动用效果,首先根据页岩压汞和氮气吸附实验结果,给出页岩T2值与孔喉半径转换系数,根据饱和页岩的T2谱特征,将页岩孔隙分为小孔、中大孔和页理缝;然后通过计算页岩油采出程度,考察吞吐周期、闷井时... 详细信息

为了明确古龙页岩油高温高压注CO_(2)驱动用效果,首先根据页岩压汞和氮气吸附实验结果,给出页岩T2值与孔喉半径转换系数,根据饱和页岩的T2谱特征,将页岩孔隙分为小孔、中大孔和页理缝;然后通过计算页岩油采出程度,考察吞吐周期、闷井时间、裂缝对吞吐驱油效果的影响,并且分析吞吐后岩心孔隙结构的改变程度;最后对比页岩油CO_(2)吞吐和CO_(2)驱替的驱油效果,并给出最优的驱油方式。结果表明:吞吐动用幅度最大的是中大孔和页理缝中的页岩油,小孔中的页岩油采出程度最低,增加闷井时间,页岩油采出程度仅提高0.81百分点,压裂可以使小孔中的页岩油采出程度提高11.33百分点,使小孔中的页岩油得到有效动用;吞吐比驱替可以使页岩油采出程度提高30.98百分点,并且可以动用干岩样中的页岩油,效果优于驱替;驱吞结合驱油方式比只进行吞吐可以使页岩油采出程度提高12.88百分点以上,并且可以大幅度提高小孔中页岩油的采出程度;吞吐后岩心孔隙结构发生明显变化,页岩砂砾含量不同是导致页岩吞吐前后孔隙结构变化差异大的重要原因。研究成果可为古龙页岩油矿场实践提供重要的基础参数。

关键词：古龙页岩油孔隙结构 CO_(2)驱替 CO_(2)吞吐高温高压核磁共振

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基于用户使用需求的性能开发体系研究

汽车文摘 2024年第7期 12-17页

作者：李坤远刘元治霍云龙张昶王燕王天娇中国第一汽车股份有限公司研发总院长春130013 高端汽车集成与控制全国重点实验室长春130013

为了满足用户日益增长的使用需求,打造基于用户实际行驶需求的开发体系是新能源汽车发展的重要任务。通过建立车辆仿真模型、大数据分析模型和实车验证等手段,从用户性能需求识别、大数据开发、性能设计、性能仿真和性能验证5个方面进... 详细信息

为了满足用户日益增长的使用需求,打造基于用户实际行驶需求的开发体系是新能源汽车发展的重要任务。通过建立车辆仿真模型、大数据分析模型和实车验证等手段,从用户性能需求识别、大数据开发、性能设计、性能仿真和性能验证5个方面进行了用户使用需求的性能体系研究。结果表明,建立考虑用户行驶需求的开发体系,能够有效提高新能源汽车产品的市场竞争力,提高产品黏性。研究认为,结合相关技术办法,在研发过程中考虑用户使用需求并建立基于用户使用需求的性能开发体系,对新能源汽车研发具有重要意义。

关键词：性能需求大数据分析性能设计性能仿真性能验证

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辣椒新品种天椒16号的选育

中国蔬菜 2019年第8期 79-81,I0003页

作者：逯建平霍建泰李鹏奎霍建平甘肃省天水市农业科学研究所甘肃天水741001 天水市秦州区种子管理站甘肃天水741000

天椒 16 号是以 45-2-1-1-1-1 为母本,以 76-1-1-1-1-1 为父本配制而成的辣椒一代杂种。中熟,始花节位为第10~12 节。果实羊角形,青熟果深绿色,果面皱,果长 25.56 cm,果径 5.83 cm,单果质量 103.8 g,辣味淡,具有良好的商品性。每 667 m... 详细信息

天椒 16 号是以 45-2-1-1-1-1 为母本,以 76-1-1-1-1-1 为父本配制而成的辣椒一代杂种。中熟,始花节位为第10~12 节。果实羊角形,青熟果深绿色,果面皱,果长 25.56 cm,果径 5.83 cm,单果质量 103.8 g,辣味淡,具有良好的商品性。每 667 m^2 产量可达 5 000 kg 以上,田间对辣椒病毒病、疫病、炭疽病和白粉病的抗性强于对照陇椒 2 号。适宜在甘肃省进行保护地和露地栽培。

关键词：辣椒天椒 16号一代杂种

OsBLS6.2:A rice bacterial leaf streak resistance gene identified by GWAS and RNA-seq

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