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Distribution characteristics of historical earthquake classes in jiangsu Province and South Huanghai Sea region

Acta Seismologica Sinica(English Edition) 2004年第4期17卷 480-489页

作者： TIAN jian-ming(田建明) XU Xu(徐徐) XIE Hua-zhang(谢华章) YANG Yun(杨云) ding Zheng(丁政) Earthquake Administration of jiangsu Province Nanjing 210014 China Earthquake Administration of Nanjing City Nanjing 210014 China Earthquake Administration of Jiangsu Province Nanjing 210014 China Earthquake Administration of Jiangsu Province Nanjing 210014 China Earthquake Administration of Jiangsu Province Nanjing 210014 China

According to the analysis on the characteristics of historic earthquakes in jiangsu Province and South Huanghai Sea region, the historical earthquakes in the studied area are divided into two kinds of comparatively safe class and comparatively dangerous class. Then the statistical result of earthquake class, the characteristics of geo-graphical distribution and geological structures are studied. The study shows: a) In jiangsu Province and South Huanghai Sea region, the majority of historical strong earthquakes belong to comparatively safe class, only 13.8% belong to comparatively dangerous class; b) Most historical earthquakes belong to comparatively safe class in the land area of jiangsu, eastern sea area of Yangtze River mouth and northern depression of South Huanghai Sea region. However, along the coast of middle jiangsu Province and in the sea area of South Huanghai Sea, the distribution of historical earthquake classes is complex and the earthquake series of comparatively dan-gerous class and comparatively safe class are equivalent in number; c) In the studied area, the statistical results of historical earthquake classes and the characteristics of spatial distribution accord very well with the real case of present-day earthquake series. It shows that the seismic activity in the region has the characteristic of succession, and the result from this study can be used as a reference for early postseismic judgment in the earthquake emer-gency work in jiangsu Province.

关键词： historical earthquake principle for classification distribution characteristics jiangsu Province South Huanghai Sea region

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疏水性自修复聚氨酯复合弹性体的制备及其电磁屏蔽性能

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弹性体 2024年第4期34卷 1-8页

作者：朱家吉谢欣宇任市红赵永朴方华高崔接武张勇丁运生合肥工业大学化学与化工学院安徽合肥230009 合肥工业大学材料科学与工程学院安徽合肥230009

通过在聚二甲基硅氧烷基聚氨酯主链上引入四重氢键和二硫键,制备疏水性自修复聚氨酯弹性体(ISH-PU-X),研究二硫键和四重氢键对聚氨酯弹性体力学性能和自修复性能的影响。结果表明,ISH-PU-2的拉伸强度为4.49 MPa,断裂伸长率为331%,划痕... 详细信息

通过在聚二甲基硅氧烷基聚氨酯主链上引入四重氢键和二硫键,制备疏水性自修复聚氨酯弹性体(ISH-PU-X),研究二硫键和四重氢键对聚氨酯弹性体力学性能和自修复性能的影响。结果表明,ISH-PU-2的拉伸强度为4.49 MPa,断裂伸长率为331%,划痕在80℃条件下完全消失,力学性能可恢复至原始样条的98%。利用动态键合分子链的流动性,实现银纳米线(AgNWs)在聚氨酯表层的均匀嵌入,获得疏水自修复聚氨酯电磁屏蔽复合材料(AgNWs/PU-X),进一步探究AgNWs含量对复合材料的电磁性能、疏水性和自修复性能的影响规律。结果表明,AgNWs/PU-X的电磁屏蔽效能可达60 dB左右,水接触角可达122°左右,在80℃下修复后电导率可恢复至原始样条的85%。AgNWs/PU-X复合材料可拓展电磁屏蔽材料的应用领域,满足复杂多变应用环境下可持续性的需求。

关键词：聚氨酯自修复疏水电磁屏蔽

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活性剂增加铝合金交流FZ-TIG焊熔深机理

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机械工程学报 2010年第16期46卷 113-118页

作者：黄勇樊丁邵锋兰州理工大学有色金属合金及加工教育部重点实验室兰州730050

针对铝合金材料提出一种新型活性TIG焊,即分区活性TIG(FZ-TIG)焊,可同时保证焊缝熔深显著增加和焊缝成形良好。利用氦气保护钨极电弧焊观察电弧行为变化,通过分析电弧电压随弧长的变化规律研究活性剂影响电弧的方式,采用焊缝偏移试验分... 详细信息

针对铝合金材料提出一种新型活性TIG焊,即分区活性TIG(FZ-TIG)焊,可同时保证焊缝熔深显著增加和焊缝成形良好。利用氦气保护钨极电弧焊观察电弧行为变化,通过分析电弧电压随弧长的变化规律研究活性剂影响电弧的方式,采用焊缝偏移试验分析活性剂对导电通道电阻的影响,进行焊缝表面焊渣X射线衍射分析和热力学计算,分析活性剂与表面氧化膜或熔池金属之间可能的化学反应。通过以上试验研究铝合金交流FZ-TIG焊中活性剂增加熔深的机理,得出活性剂强烈收缩电弧弧根和弧柱是SiO2+FZ108活性剂增加铝合金交流FZ-TIG焊熔深的主要机理。

关键词：铝合金分区活性TIG焊活性剂熔深电弧机理

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Colossal Magnetoresistance of Polycrystalline(La_(0.7)Tb_(0.3))_(2/3)Ca_(l/3)MnO_(3)at Low Drive Field

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Chinese Physics Letters 1999年第8期16卷 597-599页

作者： WANG Jing-hua CHEN Ting-yong WU jian-hua DAI Dao-sheng NIE Jia-cai ZHAO Bai-ru Department of Physics Peking UniversityBeijing 100871 National Laboratory for Superconductivity Institute of Physics&Center for Condensed Matter PhysicsChinese Academy of SciencesBeijing 100080

The magnetic and electric properties of polycrystalline(La_(0.7)Tb_(0.3))_(2/3)Ca_(l/3)MnO_(3)were investigated.A spin glass-paramagnetic transition and metal-insulator transition were observed near 45K,and there exists continuous volume change in the range of measured *** 60 K,a large anisotropic magnetostriction and a volume magnetostriction correspond to an isotropic colossal magnetoresistance(CMR)with the magnitude of more than 40%at an applied field of±0.1 *** results demonstrate that the transition is of second-order in nature and CMR could be caused by spin-charge coupling in this compound.

关键词： temperature. (3)

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Comparison of paclitaxal vs. sirolimus eluting stents with bio-degradable polymer for the treatment of coronary bifurcation lesions： subgroup analysis from DKCRUSH-I and DKCRUSH-II studies

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Chinese Medical Journal 2012年第19期125卷 3382-3387页

作者： CHEN Shao-liang Gary Mintz Teguh Santoso ZHANG Jun-jie YE Fei XU Ya-wei FU Qiang KAN Jing Chitprapai Paiboon ZHOU yong ding Shi-qin Tak W Kwan Department of Cardiology Nanjing hrst Hospital NanjlngMedical University Nanjing 210006 China Cardiovascular Research Foundation New York NY US Department of Cardiology Medistra Hospital University ofIndonesia Medical School Jakarta Indonesia Department of Cardiology Shanghai 10th People's HospitalShanghai 200072 China Department of Cardiology Xuzhou Central Hospital XuzhouJiangsu 221009 China Department of Cardiology Bangkok General Hospital BangkokThailand Department of Cardiology Zhangjiagang People's HospitalZhangjiagang Jiangsu 215600 China Department of Cardiology Huainan Xinhua Hospital HuainanAnhui 232038 China Department of Cardiology Beth Israel Hospital NewYork USA

Background The difference in clinical outcome between paclitaxal-eluting stents （PES） and sirolimus-eluting stents with bio-degradable polymer （SES-BDP） for bifurcation lesions remains unclear. The present study aimed to investigate the one-year clinical outcome after DK crush stenting using PES （maxusTM） MS. SES-BDP （ExcelTM） from our database. Methods A total of 275 patients （90 from the DKCRUSH-I and 185 from the DKCRUSH-II study） were studied. The primary endpoint was the occurrence of major adverse cardiac events （MACE） at 12 months; including cardiac death, myocardial infarction （MI）, or target vessel revascularization （TVR）. The rate of binary restenosis and stent thrombosis served as secondary endpoints. Results At follow-up, minimal luminal diameter （MLD） in the Taxus group was （2.11＋0.66） mm, with resultant increased target lesion revascularization （TLR） 12.2% and TVR 14.4%, significantly different from the Excel group; （2.47±0.56） mm, P 〈0.001, 3.2%, P=0.006, 4.9%, P=0.019, respectively. As a result there was a significant difference in MACE between the Taxus （20.0%） and Excel （10.3%, P=0.038） groups. Overall stent thrombosis was monitored in 11 patients （4.0%）, with five in the Excel group （2.7%） and six in the Taxus group （6.7%）. All stent thrombosis in the Excel group was classified as early, and all were defined as late in the Taxus group. Conclusion The Excel stent had lower rate of stent thrombosis, TLR, TVR, and composite MACE at 12-month after an indexed stenting procedure, compared to the Taxus stent.

关键词： paclitaxal-eluting stent sirolimus-eluting stent bio-degradable polymer," coronary bifurcation lesions

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Characteristics of neural growth and cryopreservation of the dorsal root ganglion using three-dimensional collagen hydrogel culture versus conventional culture

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Neural Regeneration Research 2021年第9期16卷 1856-1864页

作者： Ze-Kai Cui Shen-Yang Li Kai Liao Zhi-Jie Wang yong-Long Guo Luo-Sheng Tang Shi-Bo Tang Jacey Hongjie Ma jian-Su Chen Department of Ophthalmology the Second Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina Aier Eye Institute ChangshaHunan ProvinceChina Aier School of Ophthalmology Central South UniversityChangshaHunan ProvinceChina Institute of Ophthalmology Medical CollegeJinan UniversityGuangzhouGuangdong ProvinceChina Department of Ophthalmology First Affiliated Hospital of Jinan UniversityGuangzhouGuangdong ProvinceChina Key Laboratory for Regenerative Medicine of Ministry of Education Jinan UniversityGuangzhouGuangdong ProvinceChina CAS Center for Excellence in Brain Science and Intelligence Technology Chinese Academy of SciencesShanghaiChina Imaging and Functional Center Guangzhou Aier Eye HospitalGuangzhouGuangdong ProvinceChina

In vertebrates, most somatosensory pathways begin with the activation of dorsal root ganglion(DRG) neurons. The development of an appropriate DRG culture method is a prerequisite for establishing in vitro peripheral nerve disease models and for screening therapeutic drugs. In this study, we compared the changes in morphology, molecular biology, and transcriptomics of chicken embryo DRG cultured on tissue culture plates(T-DRG) versus three-dimensional collagen hydrogels(C-DRG). Our results showed that after 7 days of culture, the transcriptomics of T-DRG and C-DRG were quite different. The upregulated genes in C-DRG were mainly related to neurogenesis, axon guidance, and synaptic plasticity, whereas the downregulated genes in C-DRG were mainly related to cell proliferation and cell division. In addition, the genes related to cycles/pathways such as the synaptic vesicle cycle, cyclic adenosine monophosphate signaling pathway, and calcium signaling pathway were activated, while those related to cell-cycle pathways were downregulated. Furthermore, neurogenesis-and myelination-related genes were highly expressed in C-DRG, while epithelial–mesenchymal transition-, apoptosis-, and cell division-related genes were suppressed. Morphological results indicated that the numbers of branches, junctions, and end-point voxels per C-DRG were significantly greater than those per T-DRG. Furthermore, cells were scattered in T-DRG and more concentrated in C-DRG, with a higher ratio of 5-ethynyl-2′-deoxyuridine(EdU)-positive cells in T-DRG compared with C-DRG. C-DRG also had higher S100 calcium-binding protein B(S100 B) and lower α-smooth muscle actin(α-SMA) expression than T-DRG, and contained fewer terminal deoxynucleotidyl transferase dUTP nick end labeling(TUNEL)-positive cells after 48 hours of serum starvation. After cryopreservation, C-DRG maintained more intact morphological characteristics, and had higher viability and less TUNEL-positive cells than T-DRG. Furthermore, newly for

关键词： anti-apoptosis collagen hydrogel cryopreservation dorsal root ganglion neurogenesis RNA-seq Schwann cell tissue engineering

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有机物料对土壤理化性状及烟叶产质量影响定位研究

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湖南农业科学 2024年第9期 54-58页

作者：周雨靳志丽郭峰王燕丁建冰李虎王承伟王凯歌湖南省烟草公司永州市公司湖南永州425000

为了研究饼肥和稻草等有机物料对土壤理化性状、烤烟生长发育及烟叶内在品质的影响效应,设置纯化肥基肥(CK)、纯化肥基肥+发酵饼肥、纯化肥基肥+稻草翻压还田、纯化肥基肥+发酵饼肥+稻草翻压还田共4个处理,进行了小区定位试验。结果表明... 详细信息

为了研究饼肥和稻草等有机物料对土壤理化性状、烤烟生长发育及烟叶内在品质的影响效应,设置纯化肥基肥(CK)、纯化肥基肥+发酵饼肥、纯化肥基肥+稻草翻压还田、纯化肥基肥+发酵饼肥+稻草翻压还田共4个处理,进行了小区定位试验。结果表明:各种有机物料处理对土壤物理性状均有改善作用,定位试验3 a,土壤容重降低了3.1%~9.2%,总孔隙度提高了3.0%~8.5%,纯化肥基肥基础上,稻草翻压还田和饼肥配施处理对土壤物理性状改善作用最为显著。各处理土壤化学性状变化趋势有利于土壤营养状况的改善。3种有机物料处理烤烟农艺性状、外观质量、经济性状均优于CK,稻草还田翻压和饼肥配施优势最为明显。各处理烟叶感官评吸质量均优于CK,稻草还田优势较为明显。综合来看,有机物料定位试验第3年比第2年各处理优势更明显;稻草翻压还田和饼肥配施处理为湖南烟稻轮作区土壤保育的适宜模式。

关键词：烤烟有机物料土壤理化性状烟叶产质量

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Relevance of placental type I interferon beta regulation for pregnancy success

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Cellular & Molecular Immunology 2018年第12期15卷 1010-1026页

作者： Ja-Young Kwon Paulomi Aldo Yuan You Jiahui ding Karen Racicot Xiaoyan Dong John Murphy Guy Glukshtad Michelle Silasi jian Peng Li Wen Vikki MAbrahams Roberto Romero Gil Mor Division of Reproductive Sciences Department of ObstetricsGynecology and Reproductive SciencesYale School of MedicineNew HavenCTUSA Department of Obstetrics and Gynecology Institute of Women’s Life Medical ScienceYonsei University College of MedicineSeoulKorea Department of Obstetrics Gynecology&Reproductive BiologyCollege of Human MedicineMichigan State University400 Monroe Avenue NEGrand RapidsMI 49503USA Department of Pulmonary Shanghai Children’s HospitalShanghai Jiaotong University School of MedicineShanghaiChina Division of Endocrinology Department of Internal MedicineYale School of MedicineNew HavenCTUSA Perinatal Research Branch NICHD/NIHDetroitMIUSA

Pregnancy is a unique immunologic and microbial condition that requires an adequate level of awareness to provide a fast and protective response against pathogens as well as to maintain a state of tolerance to paternal *** of inflammatory pathways in the placenta triggered by pathogens is one of the main factors responsible for pregnancy *** I IFNs are key molecules modulating immune responses at the level of the placenta and are crucial for protection of the pregnancy via their antiviral and immune modulatory *** this study,we elucidate the mechanisms controlling the basal expression of IFNβand its negative *** in vitro and in vivo animal models,we found that TLR signaling maintains basal IFNβlevels through the TLR4-MyD88-independent TBK/IRF3 signaling *** describe the role of the TAM receptor Axl in the regulation of IFNβfunction in human and mouse trophoblast *** absence of TAM receptors in vivo is associated with fetal demise due to dysregulation of IFNβexpression and its pro-apoptotic downstream ***,our data describe a feedback signaling pathway controlling the expression and function of IFNβin the trophoblast that is essential for an effective response during viral and microbial infections.

关键词： trophoblast immune regulation cytokine TAM receptors type I interferon Interferon beta ISGs

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Y形整形方式对桃园树体生长、光合作用和果实品质的影响

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中国果树 2024年第10期 40-45页

作者：尤慧晴周鹏羽杨勇俞明亮许建兰丁文正高志红南京农业大学江苏210095 镇江农业科学院江苏省农业科学院果树研究所

桃园宜机化栽培是高效省力化栽培的有效方式,而Y形整形方式是新建桃园省力化栽培普遍采用的整形方式,但和传统三主枝开心形相比,其对树体生长和果实品质的影响还未见系统研究。以水蜜桃新品种霞脆为材料,以开心形整形方式为对照,研究了... 详细信息

桃园宜机化栽培是高效省力化栽培的有效方式,而Y形整形方式是新建桃园省力化栽培普遍采用的整形方式,但和传统三主枝开心形相比,其对树体生长和果实品质的影响还未见系统研究。以水蜜桃新品种霞脆为材料,以开心形整形方式为对照,研究了幼树和成年树Y形整形方式对树体生长、光合作用、产量和果实品质的影响。对桃树不同冠层叶片质量进行了测定,研究发现,霞脆叶片叶绿素含量与比叶重呈现相同的变化趋势,7、8月霞脆Y形成年树上、中、下层叶片叶绿素含量分别为3.06、2.09、1.83 mg/g和2.14、1.88、1.75 mg/g,7、8月霞脆Y形成年树上、中、下层比叶重分别为10.67、8.31、8.12 g/cm^(2)和7.79、7.12、6.49 g/cm^(2),均为上层>中层>下层。7、8月霞脆Y形幼树叶绿素含量分别为1.62、1.59 mg/g,7、8月霞脆Y形幼树比叶重分别为7.19、8.34 g/cm^(2),结果表明,Y形叶片叶绿素含量和比叶重均大于开心形,说明Y形叶片质量优于开心形。7月结果期Y形成年树叶片净光合速率为31.77μmol·m^(-2)·s^(-1),较开心形提高28.36%,Y形幼树叶片净光合速率为33.14μmol·m^(-2)·s^(-1),较开心形提高67.12%,在蒸腾速率与气孔导度方面也表现出相同的变化趋势,Y形整形方式光合作用能力显著优于开心形。成年树果实品质比较分析发现,Y形整形方式果实平均固酸比可达33.88,比开心形大6.14,Y形整形方式优于开心形。Y形成年树667 m^(2)产量为3694 kg,比开心形多1312 kg。研究结果为现代化桃园采用宜机化的Y形树形高效栽培提供了理论依据。

关键词：桃整形方式光合作用果实品质

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The Value of Subjective Visual Vertical in Diagnosis of Vestibular Migraine

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Current Medical Science 2021年第4期41卷 654-660页

作者： Fei LI Jin XU Gen-ru LI Rui GAO Chen-yong SHANG E TIAN Wei-jia KONG jian-hua ZHUANG Su-lin ZHANG Department of Neurology Changzheng HospitalNaval Medical UniversityShanghai200003China Department of Otorhinolaryngology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China Institute of Otorhinolaryngology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China Key Laboratory of Neurological Disorders of Education Ministry Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China

Objective To study the value of the subjective visual vertical(SVV)in the diagnosis of vestibular migraine(VM).Methods This study recruited 128 VM patients and 64 age-matched normal *** detected the SVV during the interval between attacks in both groups,in sitting upright,and the head tilted at 45°to the left or *** then examined the correlation between the SVV results with the vestibular evoked myogenic potential(VEMP)and canal paresis(CP).Results It was found there was a significant difference in SVV at the upright position between VM patients and normal controls(P=0.006)and no significant difference was found at the tilts of 45°to the left or right between the two *** SVV results at the upright position were significantly correlated with cervical VEMP(P=0.042)whereas not significantly correlated with CP and *** existed no significant difference in the conformity to the Müller effect(M effect)between the two *** analysis exhibited that the sensitivity,specificity of SVVs at the upright were 67.200%and 62.500%*** diagnostic value of SVV at the upright position was significantly higher than that at tilts of 45°to the left and right(P=0.006).Nonetheless the diagnostic accuracy was relatively *** Abnormality in SVV possibly stems from the lasting functional disorder of cerebellar or high-level cortical centers in VM patients or is linked to the vestibular *** SVV is of low diagnostic value for VM and the value of SVV in VM warrants further study.

关键词： vestibular migraine subjective visual vertical diagnostic value evaluation

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