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Earthquake Research in China 2017年第2期31卷 257-268页

作者： Yang Gui Xu Zhendong lin binhua Earthquake Administration of Fujian Province Fuzhou 350003 China Pingtan Seismic Station Earthquake Administration of Fujian Province Pingtan 350400 Fujian China

Using the records of 3,069 regional earthquake events from the Fujian Digital Seismic Network from October 2008 to December 2015,in which the magnitude of each of the events was measured by at least six stations,statistics are taken on the deviation between the magnitude of a single station and the average magnitude of the network. It is found that the magnitudes average deviation of each station is-0. 31-0. 68. Statistics are also taken for the period corresponding to the maximum amplitude of the record measured in each station for calculating the magnitude,and the dominant period gained is 0. 06s-0. 38s; site response of each seismic station is inverted using the Moya method,and it is found that the site response of 98 stations is in the bands of 1-20 Hz,suggesting that the site has an amplifying or suppressing effect on the signals in certain frequency bands;Considering the site response corresponding to the inherent 0. 8s period of the WoodAnderson pendulum seismograph,and comparing the magnitude deviation caused by the site response corresponding to the dominant period time of each station with the average magnitude deviation, we obtain that there is a good linear relationship between the magnitude deviation from the dominant period site response and the average deviation of the magnitude of each station,indicating that the magnitude deviation of a single station has a close relationship with the site response of the period corresponding to the maximum amplitude measured for calculating the magnitude.

关键词：数字地震台网震级偏差场地反应福建区域地震活动场地响应周期响应测量计算

An Experimental Study on Optimization of Large-volume Airgun Source Excitation Conditions in a Reservoir

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Earthquake Research in China 2016年第3期30卷 355-363页

作者： Chen Huifang lin binhua Jin Xing Wu Lihua Cai Huiteng Earthquake Administration of Fujian Province Fuzhou 350003 China Institute of Engineering Mechanics China Earthquake Administration Harbin 150080 China

Through manual pickup of seismic phases,the number of recording stations,the farthest observation distance of station and received energy are determined,then optimal operating condition processing software is developed to evaluate the excitation effect of operating conditions. The optimal operating conditions in the Mianhuatan Reservoir are determined using this software. They are: optimal water depth 25 m,airgun array sink depth 9m and airgun array size 7m × 7m. At the same time,accumulative stacking results for every 10 times are analyzed for 300 fixed-point excitations. It is concluded that the excitation effect shows a rapidly rising trend at 10 to 90 times stacking,a slowly rising trend at 100 to 150 times stacking,a rapidly rising trend at 160 to 240 times stacking,and a slowly rising trend at 250 to 300 times stacking. As the number of stacking increases,the propagation distance and the number of recording stations also increase gradually.

关键词： Optimum operating condition Stacking analysis Excitation effect Observation distance

Analysis of the Frequency Domain Water-level Deconvolution Method Based on Reservoir Airgun Source Data

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Earthquake Research in China 2018年第3期32卷 355-366页

作者： You Xiuzhen Li Jun lin binhua Huang Yandan Wu Lihua Guo Yang Fujian Earthquake Agency Fuzhou 350003China

Based on the 2016 airgun experimental data of the Fujian Nanyi reservoir,we adopted the frequency domain water-level deconvolution method and cross-correlation time delay detection technique to study the influence of level scaling factor and the background noise level of the station on deconvolution calculation results, and analyze the effect of deconvolution on eliminating the influence of the source caused by different air-gun pressures. The results show that:( 1) When the level scaling factor is smaller,the signal to noise ratio of the waveform after the deconvolution is smaller,and when the level scaling factor is over smaller,the identification error of travel time is greater.( 2) When the SNR of the station record is higher,the recognition accuracy of travel time is higher,the influence of SNR on the reference station record is far greater than the far station,when the SNR of the far station record is more than 10,the error of travel time is within6 ms,but when the SNR of the reference station record is 30,the travel time error may reach to 20 ms.( 3) When the airgun source difference is big,the frequency domain waterlevel deconvolution method has better effect on eliminating the source influence,but the method error may be introduced when the source difference is small.

关键词： Large volume airgun Water-level deconvolution in frequency domain Cross-correlation time delay Green s function

Research on Real-time Monitoring of Abnormal Seismic Noise

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Earthquake Research in China 2016年第2期30卷 224-232页

作者： lin binhua Jin Xing Liao Shirong Li Jun Huang linzhu Chen Huifang Earthquake Administration of Fujian Province Fuzhou 350003China Fuzhou University Fuzhnu 3501-16China

The noise data in vertical component records of 85 seismic stations in Fujian Province during 2012 is used as the research object in this paper. The noise data is divided into fiveminute segments to calculate the power spectra. The high reference line and low reference line of station are then identified by drawing a probability density function graph( PDF)using the power spectral probability density function. Moreover, according to the anomalies of PDF graphs in 85 seismic stations,the abnormal noise is divided into four categories: dropped packet, low noise, high noise, and median noise anomalies.Afterwards,four selection methods are found by the high or low noise reference line of the stations,and the system of real-time monitoring of seismic noise is formed by combining the four selection methods. Noise records of 85 seismic stations in Fujian Province in July2013 are selected for verification,and the results show that the anomalous noise-recognition system could reach a 90% success rate at most stations and the effect of selection are very good. Therefore,it could be applied to the seismic noise real-time monitoring in stations.

关键词：实时监测系统地震噪声异常噪声概率密度函数地震台站噪声数据功率谱分量记录

按病种付费模式在非血栓性疾病患者中的应用效果

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中国医药导报 2024年第15期21卷 33-35页

作者：蔡丹丹卢斌华陈琳浙江大学医学院附属金华医院神经外科浙江金华321000

目的探讨按病种付费(DRGs)模式在非血栓性疾病患者中的应用意义及对治疗费用的影响。方法收集2017年1月至2021年12月在浙江省金华市中心医院神经外科接受治疗的307例非血栓性疾病患者的一般资料,其中2017年1月至2019年6月就诊的154例... 详细信息

目的探讨按病种付费(DRGs)模式在非血栓性疾病患者中的应用意义及对治疗费用的影响。方法收集2017年1月至2021年12月在浙江省金华市中心医院神经外科接受治疗的307例非血栓性疾病患者的一般资料,其中2017年1月至2019年6月就诊的154例患者为对照组,该组在治疗过程中采用常规付费模式,2019年7月至2021年12月就诊的153例患者为观察组,该组在治疗过程中采用DRGs模式。分析两组医疗费用,病种数量、C型、D型病例数量,平均住院时间等指标,研究DRGs模式对危重患者总费用的影响机制。结果两组诊疗费比较,差异无统计学意义(P>0.05),观察组检查费、手术费、药费、耗材费、人均住院费低于对照组(P0.05)。DRGs模式对药费、检查费耗材量的效应比较,差异有统计学意义(P0.05);DRGs模式对患者整体治疗开支的间接效应值为2 313.47,直接效应值为257.89。结论引进DRGs模式有助于优化医院的成本控制,提高医疗技术,增强对疑难杂症的应对能力;同时可以通过精准治疗,降低患者的医疗开支,以减轻患者经济负担。

关键词：按病种付费模式非血栓性疾病住院费用住院时间结构等式模型

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MRI梯度波形发生器研究进展

波谱学杂志 2024年第1期41卷 99-115页

作者：刘颖林羚袁斌华章浩伟健康科学与工程学院上海理工大学上海200093

成像体素空间位置的准确编码对于磁共振成像(MRI)的空间定位至关重要.为了保证空间编码的准确性,获得高性能的梯度磁场是关键.梯度波形发生器是产生梯度磁场的核心部件,本文简要介绍了梯度波形发生器的工作原理和组成部分,总结了近二十... 详细信息

成像体素空间位置的准确编码对于磁共振成像(MRI)的空间定位至关重要.为了保证空间编码的准确性,获得高性能的梯度磁场是关键.梯度波形发生器是产生梯度磁场的核心部件,本文简要介绍了梯度波形发生器的工作原理和组成部分,总结了近二十年来基于不同设计方案设计的梯度波形发生器的研究进展,详细探讨了梯度波形预加重的实现方法,并对梯度波形发生器未来的研究和发展方向进行了展望.

关键词：磁共振成像梯度波形发生器数字信号处理器现场可编程门阵列预加重

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利用深度学习与物理特征预测仪器地震烈度

地球物理学报 2024年第7期67卷 2712-2728页

作者：郑周林彬华金星于伟恒李军韦永祥王士成李水龙周施文中国地震局工程力学研究所哈尔滨150088 福建省地震局福州350003 中国地震局地震工程与工程振动重点实验室哈尔滨150088

快速准确地预测记录台站的仪器地震烈度,并在地震预警过程中向潜在用户提供及时和准确的警报至关重要.本文提出了一种结合深度学习和物理参数特征的算法,用于更可靠地预测仪器地震烈度.收集并处理了2001—2021年日本K-NET和KiK-net强震... 详细信息

快速准确地预测记录台站的仪器地震烈度,并在地震预警过程中向潜在用户提供及时和准确的警报至关重要.本文提出了一种结合深度学习和物理参数特征的算法,用于更可靠地预测仪器地震烈度.收集并处理了2001—2021年日本K-NET和KiK-net强震仪台网记录的3386次地震事件作为研究样本.对这些地震事件进行截取、基线校正、质量筛选等预处理,共得到25714条三通道地震波形.使用18000条地震记录(90%训练,10%验证)构建了一个窗长为3秒的仪器地震烈度预测模型(CNN-PP),并对7714条地震记录进行了测试.结果表明,CNN-PP模型在预测仪器地震烈度方面优于传统的单一特征参数方法.此外,离线震例测试结果显示,CNN-PP模型的报警成功率达到95.03%,没有出现误报情况,为解决地震预警仪器地震烈度的测定提供了一种潜在方法.

关键词：地震预警仪器地震烈度深度学习卷积神经网络物理参数特征

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基于环境激励的厦门财富中心动力参数实测分析

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世界地震工程 2024年第1期40卷 146-153页

作者：郭阳傅大宝蔡辉腾金星林彬华徐嘉隽许燕芳陈思辉福建省地震局福建福州350001 中国地震局工程力学研究所黑龙江哈尔滨150080 中国地震局工程力学研究所地震工程与工程振动重点实验室黑龙江哈尔滨150080 福州市规划设计研究院集团有限公司福建福州350108 福建森正建设集团有限公司福建厦门361022 福建卓越建设集团有限公司福建福州350300

为揭示环境激励下不同测点反映的模态信息情况,在厦门财富中心布置结构台阵获取环境激励下的结构振动响应。采用Welch平均周期图法获得功率谱密度(power spectral density,PSD)曲线,并在此基础上识别结构模态参数。比较不同测点的PSD曲... 详细信息

为揭示环境激励下不同测点反映的模态信息情况,在厦门财富中心布置结构台阵获取环境激励下的结构振动响应。采用Welch平均周期图法获得功率谱密度(power spectral density,PSD)曲线,并在此基础上识别结构模态参数。比较不同测点的PSD曲线和模态识别结果,并与有限元结果进行对比。结果表明:1)结构基底、自由场地和基岩场地三个测点PSD曲线在0.1~1.0 Hz频段高度相似,该频段是由场地次级微地震引起的;不同之处在于结构基底测点PSD曲线Z向峰值是结构竖向基频,而自由场地峰值是场地基本频率。2)结构低楼层测点主要反映其测试方向上的模态频率,而高楼层测点能够反映多方向的模态频率。高楼层测点反映的模态信息更丰富,但易受到密集模态的影响。3)有限元结果与实测结果接近,表明有限元模型可以较好地反映结构的真实动力特性。

关键词：结构地震反应观测台阵环境激励平均周期图法结构模态有限元模型

Trichomonas vaginalis and human papillomavirus:Association with the microbiota and burden on the cervix

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Gynecology and Obstetrics Clinical Medicine 2023年第4期3卷 207-212页

作者： Kelvin Stefan Osafo Wenyu lin binhua Dong Pengming Sun Fujian Maternity and Child Health Hospita College of Clinical Medicine for Obstetrics&Gynaecology and PaediatricsFujian Medical UniversityChina Fujian Key Laboratory of Women and Children's Critical Diseases Research Fujan Maternity and Child Health HospitalFujian Women and Children's Hospital Fuzhou 350001FujianChina Fujian Clinical Research Centre for Gynaecological Oncology Fujian Maternity and Child Health Hospital(Fujian Obstetrics and Gynaecology Hospital)Fuzhou350001FujianChina

Trichomoniasis and HPV infection are common non-viral and viral sexually transmitted diseases worldwide.Emerging evidence shows that the female genital tract and its microbiota are greatly affected by these pathogens.However,the relationship between Trichomonas vaginalis,the vaginal microbiome,and High-risk(HR)-HPV infection is complex and multifaceted.Studies have proven that concurrent infections of HIV and HPV increase the risk of cervical cancer.With this basis,a question arises:How does the concurrent infection of trichomonas vaginalis and HPV affect genital tract health?Does this concurrent infection enhance or inhibit the development of cervical lesions?This review aims to bring light to these questions.This review also covers the association of trichomonas vaginalis and HPV with the microbiota of the genital tract.

关键词： Human Papillomavirus Trichomonas vaginalis Vagina microbiota Co-infection

Histone mimics： digging down under

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Frontiers in Biology 2013年第2期8卷 228-233页

作者： Yiwei lin binhua R ZHOU Departments of Molecular and Cellular Biochemistry and Markey Cancer Center College of Medicine The University of KentuckyLexington KY 40506 USA

Epigenetic 解除管制亲密地与人的疾病的发展被联系。集中的研究当前是在进行之中的为达到理想的诊断、治疗学的目标的缘故澄清机制。有修改 histone 活动的酶能也指向 non-histone 蛋白质，这被表明了，与仍然保持阴暗的内在的机制。... 详细信息

Epigenetic 解除管制亲密地与人的疾病的发展被联系。集中的研究当前是在进行之中的为达到理想的诊断、治疗学的目标的缘故澄清机制。有修改 histone 活动的酶能也指向 non-histone 蛋白质，这被表明了，与仍然保持阴暗的内在的机制。在这评论，我们集中于可以疯狂在 non-histone 底层识别过程期间被改编的新奇 histone 模仿策略。它的潜在的临床的含意也被讨论。

关键词：非组蛋白模仿组蛋白修饰人类疾病放松管制临床意义机制底物