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Comprehensive precursor anomaly research based on earthquake corresponding relevancy spectrum

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Earthquake Science 2009年第6期22卷 675-681页

作者： Haitao Wang Qiong Wang lanlan tang Lanzhou Base of lnstitute of Earthquake Science China Earthquake Administration Lanzhou 730000 China Earthquake Administration of Xinjiang Uygur Autonomous Region Urumqi 830011 China

With the aim to the quantification of anomaly identification and extraction for observed or analyzed records, we present two statistical methods of earthquake corresponding relevancy spectrum （ECRS） and sliding mean relevancy （SMR）. With ECRS method, we can obtain the abnormal confidence attribute of data in different value ranges. Based on the relevancy spectrum in different studied time-intervals, we convert the original time sequence into relevancy time sequence, and can obtain the SMR time series by using the multi-point cumulative sliding mean method. Then we can identify the seismic precursor anomaly. We test this method by taking the time sequence of r/-value in the northern Tianshan region as original data. The result shows that when the studied time-interval is 18 months, the precursor anomaly can be identified bet- ter from sliding mean relevancy. The anomaly corresponding rate is 83 percent, the earthquake corresponding rate is 86 per- cent, and the anomaly is characteristic of the middle term. To try the research on multi-parameter comprehensive application, we take the Kalpin tectonic block in Xinjiang as our studied region, and analyze the spatial and temporal abnormal characters of multi-parameter sliding extreme-value relevancy （MSER） before mid-strong earthquakes in the Kalpin block. The result indicates that ECRS and SMR sequence in different time-intervals can not only be used to identify the precursor anomaly of single-item data, but also offer the data of quantitative single-item anomaly for comprehensive earthquake analysis and prediction.

关键词： earthquake corresponding relevancy spectrum(ECRS) sliding mean relevancy (SMR) multi-parameter sliding extreme-value relevancy(MSER) comprehensive precursor anomaly

Analysis of the clinical characteristics and neonatal outcomes of seven cases of pregnancy luteoma discovered incidentally at cesarean section

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Gynecology and Obstetrics Clinical Medicine 2021年第2期1卷 83-86页

作者： Junhua Shen lanlan tang Genping Huang Xiaoxia Bai Baohua Li Zhengping Wang Department of Obstetrics Women’s HospitalZhejiang University School of MedicineXueshi Rd no.1HangzhouZhejiangPR China Department of Pathology Women’s HospitalZhejiang University School of MedicineXueshi Rd no.1HangzhouZhejiangPR China

Objective:In this study,we summarize the clinical characteristics and neonatal outcomes of patients with pregnancy luteomas that were identified incidentally at cesarean section in our *** also provide a review of the existing literature relating to this ***:A total of seven cases of pregnancy luteoma were enrolled from our hospital into this retrospective study between March 2013 and February *** then evaluated the clinical characteristics and neonatal outcomes of these ***:All seven patients with pregnancy luteomas found incidentally during Cesarean sections at term as a result of obstetric *** masses were unilateral and ranged from 2 to 10 cm in *** patients underwent partial ovariectomies or oophorocystectomy due to presumptive benign ovarian *** patients had gestational diabetes and one patient had gestational *** patient developed hirsutism and a deepened *** the seven newborns,three were girls and four were *** examinations of the newborns were normal and no virilization was detected among the infant ***:Pregnancy luteoma may be more common than *** strategies are now needed to educate obstetricians about the clinical features of pregnancy luteoma so that they can avoid unnecessary surgery.

关键词： Pregnancy luteoma Tumor-like ovarian lesion Ovarian tumor Masculinization

Quantitative Seismicity Analysis for the Risk of Historical Large Earthquake Rupture Zone:Application to the Mid-North Segment of the North-South Seismic Belt

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Earthquake Research in China 2013年第3期27卷 331-343页

作者： Long Feng Jiang Changsheng Feng Jiangang tang lanlan Earthquake Administration of Sichuan Province Institute of Geophysics China Earthquake Administration Earthquake Administration of Gansu Province Earthquake Administration of Xinjiang Uygur Autonomous Region

Although seismic gap theory plays an important role in the med-and long-term earthquake prediction,the potential risk of the non-seismic gap in historical earthquake rupture areas will need to be simultaneously taken into account in the study of med-and long-term earthquake prediction,due to the temporally clustering or non-linear behavior of large earthquake *** order to explore technical methods which can be based on observational data,and identify historical earthquake rupture zones( including the seismic gap in historical and prehistoric earthquake rupture zones),we select eight historical large earthquake rupture zones with different elapsed times on the mid-north segment of the North-South Seismic Belt to make quantitative analysis on the characteristics of modern seismicity of these zones and preliminarily explore the seismicity method for determining the urgency degree of potential earthquake *** results mainly show that the pvalue,which reflects the attenuation of earthquake sequence,and the a-value,which reflects the seismicity rate,are strongly related to the elapsed time of the latest earthquake in the rupture ***,the corresponding relationships in some rupture areas are not clear perhaps due to the complex fault structure and faulting *** b-value,which represents the state of tectonic stress accumulation,does not easily reflect the elapsed time information of different evolution *** b-value temporal scanning shows a steady evolution over time in most of the rupture zones,but in the rupture zone of the Wudu M8.0 earthquake of 1879,the b-value shows significant fluctuations with a decreasing trend for 20 *** comparative analysis,we conclude that the rupture zones of the 1933 M7.5 Maoxian earthquake and the 1976 M7.2 Songpan-Pingwu earthquake are still in the decaying period of earthquake sequences,and thus do not have the background for recurrence of M7.0 *** low b-value Maqu segment,which is loc

关键词： Historical earthquake rupture zone Large earthquake risk Seismicity Mid-north segment of North-South Seismic Belt

Oxidative effects on lungs in wistar rats caused by longterm exposure to four kinds of china representative chrysotile

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Oxidative effects on lungs in wistar rats caused by longterm...

中国毒理学会第七次全国会员代表大会暨中国毒理学会第六次中青年学者科技论坛

作者： lanlan tang Yan Cui Jun Bai Qingbi Zhang Southwest Medical University

Objective Chrysotile, accounting for approximately 90%of all the asbestos, has now been used worldwide. Accumulating evidence has shown that increasing of lung cancer, asbestosis as well as mesothelioma was associated with asbestos (including chrysotile) exposure. However, the molecular mechanisms underlying the toxic effects of chrysotile have not yet been entirely understood. Therefore, four kinds of China representative chrysotile (Shaanxi Shannan (SSX),

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基于网格纵横局部二值模式的三维人脸识别

仪器仪表学报 2016年第6期37卷 1413-1420页

作者：汤兰兰盖绍彦达飞鹏邓星东南大学自动化学院南京210096 东南大学复杂工程系统测量与控制教育部重点实验室南京210096

提出一种基于网格纵横局部二值模式的三维人脸识别方法。为了充分体现人脸表面的细节差异,有效表示出由表情引起的局部形状变化,本文首先在人脸网格表面的半刚性区域内检测关键点集,并且由关键点确定中心面片,由中心面片及其周围有序环... 详细信息

提出一种基于网格纵横局部二值模式的三维人脸识别方法。为了充分体现人脸表面的细节差异,有效表示出由表情引起的局部形状变化,本文首先在人脸网格表面的半刚性区域内检测关键点集,并且由关键点确定中心面片,由中心面片及其周围有序环确定关键点邻域;其次将网格上中心面片及其周围有序环看成一个整体,从纵向(相邻环上对应面片之间)和横向(同一环上相邻标号面片之间)分别提取网格纵向局部二值模式描述符和网格横向局部二值模式描述符;然后对这两者进行特征融合得到网格纵横局部二值模式描述符;最后利用LC-KSVD2字典学习算法在Bosphorus数据库和FRGC v2.0数据库上完成识别实验。在Bosphorus数据库上各表情的平均Rank-1识别率为97.6%,在FRGC v2.0数据库上的Rank-1识别率为97.9%,该实验结果充分表明本文所提算法具有较高的识别精度,并且对表情变化具有一定的鲁棒性。

关键词： 3D人脸识别关键点检测网格纵向局部二值模式网格横向局部二值模式特征融合 LC—KSVD2算法

新疆天山中东段地区地震波衰减、场地响应及震源参数研究

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地震学报 2011年第2期33卷 134-142,270页

作者：唐兰兰李志海新疆维吾尔自治区地震局中国乌鲁木齐830011

根据新疆数字地震台网17个数字地震台的地震波形资料,用Atkinson和Mereu方法反演天山中东段地区的非弹性衰减;用Moya和Jorge方法反演17个台站的场地响应.结果表明,天山中东段地区非弹性衰减Q值随频率f的关系为Q(f)=460.7f0.515;17个台... 详细信息

根据新疆数字地震台网17个数字地震台的地震波形资料,用Atkinson和Mereu方法反演天山中东段地区的非弹性衰减;用Moya和Jorge方法反演17个台站的场地响应.结果表明,天山中东段地区非弹性衰减Q值随频率f的关系为Q(f)=460.7f0.515;17个台站的台基均有不同程度的放大效应.209次地震震级与地震矩在单对数坐标下有明显的正相关关系,地震震级与震源尺度及矩震级成正相关关系,与拐角频率成反相关关系,地震震级与应力降之间没有明显依赖关系.

关键词：新疆天山中东段地区地震动衰减场地响应几何衰减函数 Q值

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天山中段地区重复地震时空特征研究

地震学报 2021年第5期43卷 551-568,I0001页

作者：唐兰兰张艺峰姚道平中国地震局厦门海洋地震研究所中国福建厦门361021 福建省地震局厦门地震勘测研究中心中国福建厦门361021

基于2009—2017年新疆区域数字地震台网记录的地震波形数据,利用波形互相关技术及主事件定位方法识别并重新定位了新疆天山中段及其周缘的重复地震。以波形互相关系数0.9作为阈值来确定研究区的重复地震事件,统计结果显示3万零181个事... 详细信息

基于2009—2017年新疆区域数字地震台网记录的地震波形数据,利用波形互相关技术及主事件定位方法识别并重新定位了新疆天山中段及其周缘的重复地震。以波形互相关系数0.9作为阈值来确定研究区的重复地震事件,统计结果显示3万零181个事件中的1万1618个为重复地震事件,这些重复地震事件组成了2395组重复地震对和重复地震丛,占总事件数的38.5%。根据重复地震重定位前后地震对之间距离的统计结果推测,该区域的系统定位误差约为5—10 km。进一步结合该区域最新的震源分类结果对不同震源类型重复地震的时空分布特征予以分析,结果显示:重复矿山爆破事件在空间上呈丛集性分布,且其中的93.6%发生于白天,同时呈现季节性发生模式,即爆破多发生于夏季,而冬季较少;而重复构造地震在空间上大多沿断层分布,24小时内呈随机分布的特征,且研究时段内每个月的活动水平相对平稳;重复诱发地震成丛分布于靠近油气田和水库的区域,但其中部分诱发地震的位置与构造地震重叠,发震时间特征与构造地震相似,为随机分布。

关键词：天山中段重复地震波形互相关主事件定位法

The chromosome-scale assembly of the Notopterygium incisum genome provides insight into the structural diversity of coumarins

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Acta Pharmaceutica Sinica B 2024年第8期14卷 3760-3773页

作者： Qien Li Yiqun Dai Xin-Cheng Huang lanlan Sun Kaixuan Wang Xiao Guo Dingqiao Xu Digao Wan Latai An Zixuan Wang Huanying tang Qi Qi Huihui Zeng Minjian Qin Jia-Yu Xue Yucheng Zhao Tibetan Medicine Research Center of Qinghai University Tibetan Medical CollegeQinghai UniversityXining 810016China School of Pharmacy Bengbu Medical UniversityBengbu 233030China Department of Resources Science of Traditional Chinese Medicines School of Traditional Chinese PharmacyChina Pharmaceutical UniversityNanjing 210009China College of Horticulture Bioinformatics CenterAcademy for Advanced Interdisciplinary StudiesNanjing Agricultural UniversityNanjing 210095China Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility Shaanxi University of Chinese MedicineXi’an 712046China

Coumarins,derived from the phenylpropanoid pathway,represent one of the primary metabolites found in *** alignment of the tetrahydropyran(THP)and tetrahydrofuran(THF)rings with the lactone structure results in the formation of at least four types of complex ***,the mechanisms underlying the structural diversity of coumarin remain poorly ***,we report the chromosome-level genome assembly of Notopterygium incisum,spanning 1.64 Gb,with a contig N50 value of 22.7 Mb and 60,021 annotated protein-coding ***,we identified the key enzymes responsible for shaping the structural diversity of coumarins,including two p-coumaroyl CoA 2′-hydroxylases crucial for simple coumarins basic skeleton architecture,two UbiA prenyltransferases responsible for angular or linear coumarins biosynthesis,and five CYP736 cyclases involved in THP and THF ring ***,two bifunctional enzymes capable of catalyzing both demethylsuberosin and osthenol were identified for the first *** analysis implies that tandem and ectopic duplications of the CYP736 subfamily,specifically arising in the Apiaceae,contributed to the structural diversity of coumarins in ***,this study proposes a parallel evolution scenario for the complex coumarin biosynthetic pathway among different angiosperms and provides essential synthetic biology elements for the heterologous industrial production of coumarins.

关键词： Notopterygium incisum Parallel evolution Biosynthesis Pyranocoumarins Furanocoumarins

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宫颈妊娠合并卵巢甲状腺肿并甲状腺癌一例

中华医学超声杂志（电子版） 2023年第5期20卷 572-574页

作者：李萍鲁红唐兰兰浙江大学医学院附属妇产科医院超声科杭州310000

患者女性,44岁,平素月经规律,末次月经时间为2018年9月2日,20d前因持续性阴道流血于外院就诊,超声检查提示“宫腔内未见孕囊”.

关键词：超声检查提示平素月经规律宫颈妊娠末次月经时间卵巢甲状腺肿甲状腺癌持续性阴道流血孕囊