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Advances in seismological methods for characterizing fault zone structure

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Earthquake Science 2024年第2期37卷 122-138页

作者： yan cai Jianping Wu yaning Liu Shijie Gao Institute of Geophysics China Earthquake AdministrationBeijing 100081China Key Laboratory of Earthquake Source Physics China Earthquake AdministrationBeijing 100081China

Large earthquakes frequently occur along complex fault *** seismic rupture and long-term fault evolution requires constraining the geometric and material properties of fault zone *** provide a comprehensive overview of recent advancements in seismological methods used to study fault zone structures,including seismic tomography,fault zone seismic wave analysis,and seismicity *** conditions limit our current ability to fully characterize fault zones,for example,insufficient imaging resolution to discern small-scale anomalies,incomplete capture of crucial fault zone seismic waves,and limited precision in event location *** seismic arrays can overcome these limitations and enable more detailed investigations of fault zone ***,we present new insights into the structure of the Anninghe-Xiaojiang fault zone in the southeastern margin of the Qinghai-Xizang Plateau based on data collected from a dense seismic *** found that utilizing a dense seismic array can identify small-scale features within fault zones,aiding in the interpretation of fault zone geometry and material properties.

关键词： fault zone structure tomography fault zone wave seismic activity Anninghe-Xiaojiang fault zone

Three dimensional velocity model and its tectonic implications at China Seismic Experimental Site,eastern margin of the Tibetan Plateau

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Science China Earth Sciences 2024年第7期67卷 2268-2290页

作者： Jianping WU yan cai Wei WANG Weilai WANG Changzai WANG Lihua FANG yaning LIU Jing LIU Institute of Geophysics China Earthquake AdministrationBeijing 100081China Beijing Baijiatuan Earth Science National Observation and Research Station Beijing 1095China Beijing Earthquake Agency Beijing 100080China

The China Seismic Experimental Site(CSES)is located at the intersection of the Tibetan Plateau,South China Block,and Indian Plate and has complex geological settings and intense crustal deformation,making it one of the most seismically active areas in Chinese mainland.A high-resolution,three-dimensional(3D)crust-mantle velocity structure is crucial for understanding seismotectonic environments,lithospheric deformation mechanisms,and deep dynamic *** first constructed a high-vertical-resolution 3D initial velocity model using the joint inversion of receiver functions and surface waves and then obtained a 3D P-and S-wave velocity model(CSES-VM1.0)with the highest lateral resolution of 0.25°for the CSES using double-difference *** to the limitations of the Sn observation data,the resolution of the S-wave velocity model in the lower crust and upper mantle was reduced,making it closer to the initial model provided by joint inversion.A comparison with explosive-source seismic data showed that the synthetic P-wave first-arrival travel times of the new model were closer to the observations than those of the previous velocity *** velocity cross-sections across the source areas of the 2022 Lushan MS6.1 and Ludian MS6.8 earthquakes reveal that the former earthquake occurred near a weak contact zone between the Tibetan Plateau and Sichuan Basin,and the rupture of the latter earthquake occurred in a granitic area,with the northern end blocked by rigid high-velocity bodies.A clear high-velocity anomaly zone is distributed along the western margin of the yangtze Block,revealing the spatial distribution of Neoproterozoic intermediate-basic *** high-velocity zone significantly controls the morphology of fault zones and influences the rupture processes of major *** northeast-southwest and north-south trending high-velocity anomalies were found near Panzhihua,potentially related to Neoproterozoic and Middle-Late Permian intermediate

关键词： Eastern Tibetan Plateau China Seismic Experimental Site yangtze Block Velocity model Double-difference tomography

Ultrafast pulse-dilation framing camera and its application for time-resolved X-ray diagnostic

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Nuclear Science and Techniques 2024年第7期35卷 101-114页

作者： Hou-Zhi cai Qiu-yan Luo Kai-Xuan Lin Xuan Deng Jun-Kai Liu Kai-Zhi yang Dong Wang Jia-Jie Chen Jia-Heng Wang Jing-Hua Long Li-Hong Niu yun-Fei Lei Jin-Yuan Liu Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province Shenzhen Key Laboratory of Photonics and BiophotonicsCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen518060China

An ultrafast framing camera with a pulse-dilation device,a microchannel plate(MCP)imager,and an electronic imaging system were *** camera achieved a temporal resolution of 10 ps by using a pulse-dilation device and gated MCP imager,and a spatial resolution of 100μm by using an electronic imaging system comprising combined magnetic *** spatial resolution characteristics of the camera were studied both theoretically and *** results showed that the camera with combined magnetic lenses reduced the field curvature and acquired a larger working area.A working area with a diameter of 53 mm was created by applying four magnetic lenses to the ***,the camera was used to detect the X-rays produced by the laser-targeting *** diagnostic results indicated that the width of the X-ray pulse was approximately 18 ps.

关键词： Inertial confinement fusion Plasma diagnostics Framing camera Combined lenses Pulse-dilation

Analysis of risk factors for postoperative anxiety and depression in endometriosis patients with reproductive intention

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World Journal of Psychiatry 2024年第9期14卷 1364-1374页

作者： Chun-Mei Wu cai-Hua Li You-yan Fang Huan Wu Dong-Mei Ji Ping Zhou yun-Xia Cao Ye He Zhao-Lian Wei Department of Obstetrics and Gynecology the First Affiliated Hospital of Anhui Medical UniversityHefei 230000Anhui ProvinceChina Department of Obstetrics and Gynecology Huaibei People's Hospital of Anhui ProvinceHuaibei 235000Anhui ProvinceChina

BACKGROUND The occurrence of postoperative depression and anxiety in patients with endomet-riosis(EMS)not only causes psychological distress,but may also harm their physical *** To explore the postoperative depression status,and its influencing factors,of EMS patients with reproductive *** A total of 321 EMS patients with reproductive intent were *** the self-rating anxiety scale and self-rating depression scale,EMS patients with anxiety or depression were distinguished.A clinical model for predicting anxiety or depression in EMS patients was constructed and evaluated using a nomogram,receiver operating characteristic curve,and calibration *** The results of the single factor analysis showed that smoking,coffee,EMS stage,chronic pelvic pain,and sexual discomfort may be related to ***,smoking,drinking,spouse,annual household income and EMS stage may be related to depression in EMS *** logistic regression illustrated that smoking,coffee,chronic pelvic pain and sexual discomfort may be inde-pendent risk factors for anxiety in EMS patients,while smoking,EMS stage(Phase III and Phase IV),spouse and high annual household income may be independent risk factors for depression in EMS ***,the models used to predict the risk of anxiety or depression in EMS patients have good predictive *** The anxiety and depression of EMS patients may be related to many *** clinical treatment,additional attention should be paid to the psychological status of EMS patients.

关键词： Endometriosis Reproductive intention Anxiety Depressed

Upregulation of circ0000381 atienuates microglial/macrophage pyroptosis after spinal cord injury

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Neural Regeneration Research 2024年第6期19卷 1360-1366页

作者： yan Zhang Wenkai Zhang Tao Liu Ziqian Ma Wenxiu Zhang yun Guan Xueming Chen Central Laboratory Beijing Luhe HospitalCapital Medical UniversityBeijingChina Department of Orthopedics Beijing Luhe HospitalCapital Medical UniversityBeijingChina Department of Emergency Medicine Aerospace Center HospitalBeijingChina Department of Anesthesiology and Critical Care Medicine Johns Hopkins University School of MedicineBaltimoreMDUSA Department of Neurological Surgery Johns Hopkins University School of MedicineBaltimoreMDUSA

Neuroinflammation exacerbates secondary damage after spinal cord injury,while microglia/macrophage pyroptosis is important to *** RNAs(circRNAs)play a role in the central nervous ***,the functional role and mechanism of circRNAs in regulating microglia/macrophage pyroptosis after spinal cord injury are still poorly *** the present study,we detected microglia/macrophage pyroptosis in a female rat model of spinal cord injury,along with upregulated levels of circ0000381 in the spinal *** further experimental results suggest that circ0000381 may function as a sponge to sequester endogenous microRNA423-3p(miR-423-3p),which can increase the expression of NOD-like receptor 3(NLRP3),a pyroptosis ***,upregulation of circ0000381 may be a compensatory change after spinal cord injury to attenuate microglia/macrophage ***,knockdown of circ0000381 expression exacerbated microglia/macrophage ***,our findings provide novel evidence for the upregulation of circ0000381,which may serve as a neuroprotective mechanism to attenuate microglia/macrophage pyroptosis after spinal cord ***,circ0000381 may be a novel therapeutic target for the treatment of spinal cord injury.

关键词： circ0000381 inflammasome macrophage microglia miR-423-3p neuroinflammation neuroprotection NLRP3 pyroptosis RNA-Seq spinal cord injury

Associations of serum D-dimer and glycosylated hemoglobin levels with third-trimester fetal growth restriction in gestational diabetes mellitus

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World Journal of Diabetes 2024年第5期15卷 914-922页

作者： Ying Zhang Teng Li Chao-yan Yue yun Liu Department of Laboratory Medicine Obstetrics and Gynecology Hospital of Fudan UniversityShanghai 200011China Department of Interventional Radiology The People’s Hospital of Weifang CityWeifang 261041Shandong ProvinceChina Department of Hematology The People’s Hospital of Weifang CityWeifang 261041Shandong ProvinceChina

BACKGROUND Gestational diabetes mellitus(GDM)is a special type of diabetes that commonly occurs in women during pregnancy and involves impaired glucose tolerance and abnormal glucose metabolism;GDM is diagnosed for the first time during pregnancy and can affect fetal growth and *** To investigate the associations of serum D-dimer(D-D)and glycosylated hemoglobin(HbA1c)levels with third-trimester fetal growth restriction(FGR)in GDM *** The clinical data of 164 pregnant women who were diagnosed with GDM and delivered at the Obstetrics and Gynecology Hospital of Fudan University from January 2021 to January 2023 were analyzed *** these women,63 whose fetuses had FGR were included in the FGR group,and 101 women whose fetuses had normal body weights were included in the normal body weight group(normal group).Fasting venous blood samples were collected from the elbow at 28-30 wk gestation and 1-3 d before delivery to measure serum D-D and HbA1c levels for comparative *** diagnostic value of serum D-D and HbA1c levels for FGR was evaluated by receiver operating characteristic analysis,and the influencing factors of third-trimester FGR in GDM patients were analyzed by logistic *** Serum fasting blood glucose,fasting insulin,D-D and HbA1c levels were significantly greater in the FGR group than in the normal group,while the homeostasis model assessment of insulin resistance values were lower(P<0.05).Regarding the diagnosis of FGR based on serum D-D and HbA1c levels,the areas under the curves(AUCs)were 0.826 and 0.848,the cutoff values were 3.04 mg/L and 5.80%,the sensitivities were 81.0%and 79.4%,and the specificities were 88.1%and 87.1%,*** AUC of serum D-D plus HbA1c levels for diagnosing FGR was 0.928,and the sensitivity and specificity were 84.1%and 91.1%,*** D-D and HbA1c levels were risk factors for third-trimester FGR in GDM patients(P<0.05).CONCLUSION D-D and HbA1c levels can

关键词： Gestational diabetes mellitus D-dimer Hemoglobin Fetal growth restriction Fasting blood glucose

Identification and Analysis of the WRKY Transcription Factor Gene Family in Verbena bonariensis

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 1875-1896页

作者： Dandan Yuan Ju cai Tao Zhang Sisi Wang Xiuliu yang yan Li The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education) Guizhou UniversityGuiyang550025China

The WRKY transcription factor gene family is one of the unique gene families in *** plays an important role in response to abiotic stresses such as cold and drought,hormone signal transduction,regulation of biosynthesis,leaf senescence seed germination,***,little information is available about WRKY transcription factors in Verbena *** this study,70 VbWRKY genes were identified from the whole *** phylogenetic analysis of the WRKY gene family in *** and Arabidopsis shows that the WRKY genes in *** can be divided into three groups:I,II,and III,which contain 13,47,and 10 members,*** II can be further divided into five subclasses:IIa(5),IIb(10),IIc(18),IId(6),and IIe(8).Conservative motif analysis showed that 64 proteins encoded by the VbWRKY gene had conserved motifs 1,2 and 3,and the same subclass motif elements were approximately the *** collinearity analysis showed that there were 44 homologous gene pairs among the VbWRKYs,and these homologous gene pairs may have the same *** sequence analysis showed that the VbWRKY gene has multiple cis-acting elements,including not only cis-acting elements related to low-temperature and light responses,but also cis-acting elements related to hormone regulation,Among them,most VbWRKY genes contain response elements about low-temperature,and 30 VbWRKY genes contain low-temperature response elements(LTR),and 61 VbWRKY genes contain abscisic acid response elements(ABRE),indicating that VbWRKY plays a crucial role in plant growth and abiotic *** to the expression of VbWRKY in the cold stress and different tissues transcriptome,70 VbWRKY genes played their respective roles in various tissues and stages to regulate plant growth,Also,some of them participated in the process of cold stress tolerance,52 VbWRKYs showed significant differences in expression under cold stress,and 37 VbWRKY genes were up-regulated under cold stress.9 VbWRKY genes w

关键词： Verbena bonariensis WRKY gene family cold resistance

(Benzimidazolium)_(2)GeI_(4):A layered two-dimensional perovskite with dielectric switching and broadband near-infrared photoluminescence

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Chinese Journal of Structural Chemistry 2024年第6期43卷 45-49页

作者： Xuan Zhu Lin Zhou Xiao-yun Huang yan-Ling Luo Xin Deng Xin yan yan-Juan Wang yan Qin Yuan-Yuan Tang Ordered Matter Science Research Center Nanchang UniversityNanchang330031People's Republic of China

Two-dimensional(2D)lead halide perovskites have attracted tremendous attention due to their outstanding physical ***,the presence of toxic lead is a major problem for large-scale ***,we report the synthesis,phase transition,dielectric and photoluminescence(PL)properties of a lead-free 2D Ge-based perovskite(BIM)_(2)GeI_(4)(BIM=benzimidazolium)which experiences a phase transition at 405 K accompanied by an order-disorder change of organic ***,the step-like dielectric transition near the phase transition temperature makes it suitable for dielectric ***,(BIM)_(2)GeI_(4)has a direct bandgap of 2.23 eV and broadband emission from 550 to 1000 nm,implying its unique optical property for potential near-infrared lighting and *** work provides a fresh example for the development of lead-free 2D Ge-based perovskite with potential applications in the fields of optoelectronics and high temperature dielectric switching.

关键词： Dielectric switching Photoluminescence Two-dimensional perovskite Lead-free perovskite

Preparation and Characterization of Biobased Dehydroabietyl Polyethylene Glycol Glycidyl Ether-Grafted Hydroxyethyl Cellulose with High Emulsifying Property

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Journal of Renewable Materials 2024年第1期12卷 103-117页

作者： Zhengqing Ding Quan yang Xinyan yan Feng Gu Xujuan Huang Zhaosheng cai School of Chemical and Chemistry Yancheng Institute of TechnologyYancheng224051China

Dehydroabietyl polyethylene glycol glycidyl ether-grafted hydroxyethyl cellulose(HEC)polymer surfactant(DA(EO)5GE-g-HEC)was prepared using ring-opening polymerization with biobased rosin and hydroxyethyl cellulose as *** polyethylene glycol glycidyl ether(DA(EO)5GE)was formed by condensation of dehydroabietyl alcohol polyoxyethylene ether(Rosin derivative:DA(EO)5H)and *** grafting degree of DA(EO)5GE-g-HEC was manipulated by adjusting the mass ratio of HEC and DA(EO)5GE and confirmed by *** to the formula,when m(HEC)/m(DA(EO)2GE)was 1:1~1:5,the grafting rate of DA(EO)5GE in DA(EO)5GE-g-HEC varied from 34.43%to 38.33%.The surface activity and foam properties of DA(EO)5GE-g-HEC aqueous solution were *** results showed that with the increase in grafting rate,the critical micellar concentration(CMC)in aqueous solution changed from 1.28 to 0.96 g/*** results of the thermogravimetric analysis showed that the temperature range of the main stage of mass loss of DA(EO)5GE-g-HEC was 310°C~410°C,and the thermal decomposition processes of the samples with five mass ratios were *** oil in water emulsion was prepared by choosing cyclohexane as the oil phase and DA(EO)5GE-g-HEC as the *** effect of DA(EO)5GE-g-HEC mass fraction on emulsion particle size and stability was *** results suggested that when the oil-water ratio was 8:2 with 0.4%emulsifier,the emulsion droplets were the smallest in terms of particle size and were the most *** rheological test results showed that the apparent viscosity decreased with the increase in shear rate and showed a typical elastic gel phenomenon.

关键词： Rosin hydroxyethyl cellulose surfactant emulsion rheological behaviour