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放散式体外冲击波疗法用于缺血性脑卒中合并吞咽障碍患者的价值

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中华保健医学杂志 2024年第1期26卷 14-17页

作者：黄池颖徐炜堇上海中医药大学附属曙光医院康复医学科 201203

目的探讨放散式体外冲击波疗法(rESWT)用于缺血性脑卒中合并吞咽障碍患者的价值。方法选取上海中医药大学附属曙光医院康复医学科2022年1月~2023年1月收治的缺血性脑卒中合并吞咽障碍患者108例,抽签随机分为观察组和对照组,各54例。对... 详细信息

目的探讨放散式体外冲击波疗法(rESWT)用于缺血性脑卒中合并吞咽障碍患者的价值。方法选取上海中医药大学附属曙光医院康复医学科2022年1月~2023年1月收治的缺血性脑卒中合并吞咽障碍患者108例,抽签随机分为观察组和对照组,各54例。对照组进行吞咽康复训练,观察组在对照组基础上结合rESWT干预治疗。采用洼田饮水试验(WST)评估两组患者干预效果;采用标准吞咽功能评估量表(SSA)、功能性经口摄食量表(FOIS)和渗漏-误吸评分(PAS)评估吞咽功能;采用吞咽障碍特异性生活质量量表(SWAL-QOL)和生活质量综合评定问卷(CQOL-74)评估生活质量;记录两组患者不良反应及并发症。结果干预后,两组患者WST分级变化总体水平优于同组干预前,且观察组优于对照组,差异有统计学意义(Z=9.480,P<0.05)。干预后,两组患者SSA、PAS评分低于同组干预前,且观察组低于对照组[(20.58±2.25)分vs.(24.45±3.02)分、(1.85±0.42)分vs.(2.91±0.76)分],差异有统计学意义(t=7.551、8.971,P<0.05);FOIS评分高于同组干预前,且观察组高于对照组[(5.88±1.12)分vs.(5.04±1.16)分],差异有统计学意义(t=3.828,P<0.05)。干预后,两组患者CQOL-74各项评分和SWAL-QOL评分均高于同组干预前,且观察组高于对照组[(76.13±4.76)分vs.(66.48±4.55)分、(77.43±3.46)分vs.(63.15±3.51)分、(81.52±4.68)分vs.(71.05±4.75)分、(157.24±14.54)分vs.(132.14±13.75)分],差异有统计学意义(t=10.769、21.291、11.538、9.217,P<0.05)。观察组并发症发生率显著低于对照组(1.85%vs.12.96%),差异有统计学意义(χ^(2)=4.860,P=0.027)。结论rESWT可有效促进缺血性脑卒中合并吞咽障碍患者早期吞咽功能恢复,提高其生活质量,且安全性良好,具有一定临床应用价值。

关键词：放散式体外冲击波吞咽康复训练缺血性脑卒中吞咽障碍

Seismic Hazard Analysis of China's Mainland Based on a New Seismicity Model

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International Journal of Disaster Risk Science 2023年第2期14卷 280-297页

作者： weijin xu Jian Wu Mengtan Gao Institute of Geophysics China Earthquake AdministrationBeijing100081China China Earthquake Disaster Prevention Center Beijing100029China

Based on the seismic source model in the Fifth Generation Seismic Ground Motion Parameters Zonation Map of China(FGSGMPZMC),a new seismic fault model,the new zonation of seismic risk areas(SRAs),and the estimation of seismicity rates for 2021-2030,this study constructed a new time-dependent seismic source model of China’s mainland,and used the probabilistic seismic hazard analysis method to calculate seismic hazard by selecting the ground motion models(GMMs)suitable for seismic sources in *** also provided the probabilities of China’s mainland being affected by earthquakes of modified Mercalli intensity(MMI)Ⅵ,Ⅶ,Ⅷ,Ⅸ,and≥Ⅹin *** spatial pattern of seismic hazards presented in this article is similar to the pattern of the FGSGMPZMC,but shows more *** seismic hazards in this study are higher than those in the FGSGMPZMC in the SRAs and fault zones that can produce large *** indicates that the seismic source model construction in this study is scientific and *** are certain similarities between the results in this study and those of Rong et al.(2020)and Feng et al.(2020),but also disparities for specific sites due to differences in seismic source models,seismicity parameters,and *** results of seismic hazard may serve as parameter input for future seismic risk *** hazard results can also be used as a basis for the formulation of earthquake prevention and mitigation policies for China’s mainland.

关键词： China’s mainland New seismicity model Probabilistic seismic hazard analysis(PSHA) Seismic fault model Seismic risk areas

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中国传统青色与绿色植物染服饰色彩辨析

毛纺科技 2024年第1期52卷 32-36页

作者：郭鹏丽徐伟津缪斌斌王越平北京服装学院材料设计与工程学院北京100029

青绿色系是中国传统服饰色彩中的重要组成部分,其中青色位于传统五正色首位。针对传统服饰色彩中青色与绿色的色彩边界模糊,常常统称为青绿色系的问题,文章首先测量故宫博物院官网上以青绿色命名的清代纺织品的色度值,其次采用传统单染... 详细信息

青绿色系是中国传统服饰色彩中的重要组成部分,其中青色位于传统五正色首位。针对传统服饰色彩中青色与绿色的色彩边界模糊,常常统称为青绿色系的问题,文章首先测量故宫博物院官网上以青绿色命名的清代纺织品的色度值,其次采用传统单染、复染以及与黄色系、红色系植物染料套染等染色技法,对染色后织物的色度值进行测量,比较图片数据与染色实验结果得出我国传统青、绿色系所表示的色度值范围。结果表明:绿色多指出现在第2、3象限的黄绿色,围绕在a轴负值上下,色度值大致范围为a^(*)值≤-10,b^(*)值为-10~50;青色色度值为a^(*)值在-10~10之间,b^(*)值在-70~10范围内,其中L^(*)值较小的一类色彩(-10≤a^(*)、b^(*)值≤10),如石青色、元青色、玄青色等,为狭义的青色。绿色与青色在第3象限有少量交叉。

关键词：植物染色青色系绿色系色相分析染色实验

Review and Prospects of the Global Earthquake Model Project ( GEM)

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Earthquake Research in China 2017年第1期31卷 1-11页

作者： Li Changlong Wu Jian xu weijin Gao Mengtan Institute of Geophysics China Earthquake Administration Beijing 100081 China China Earthquake Risk and Insurance Laboratory Beijing 100081 China

This paper reviewed the main target,functions,tool( Open Quake software) and research achievements of the Global Earthquake Model( GEM) Foundation,and made a simple prospect on the development and application of projects of GEM in the future. Learning from GEM and Open Quake is helpful to improve the seismic hazard model of China and enhance the scientificity of the seismic hazard assessment for metropolitans and major engineering facilities near major seismogenic structures.

关键词： Global Earthquake Model (GEM) Probabilistic seismic hazard assessment(PSHA) Seismic risk assessment OpenQuake virtual machine

基于信息框架效应的干预方案对妊娠期糖尿病孕妇自我管理行为和负性情绪的影响

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中国医药指南 2024年第23期22卷 175-177页

作者：陈宝珠陈丹许为金陈洁琼滕清凤福建省立医院妇产科福州350028

目的探讨基于积极信息框架效应教育干预对妊娠期糖尿病孕妇自我管理行为和负性情绪的影响。方法随机抽取福建省立医院2022年8月至2023年4月收治的116例妊娠期糖尿病孕妇作为本次研究对象,依据随机数字表法分为对照组和观察组,分别为56例... 详细信息

目的探讨基于积极信息框架效应教育干预对妊娠期糖尿病孕妇自我管理行为和负性情绪的影响。方法随机抽取福建省立医院2022年8月至2023年4月收治的116例妊娠期糖尿病孕妇作为本次研究对象,依据随机数字表法分为对照组和观察组,分别为56例、60例,对照组采用常规干预,观察组采用积极信息框架的教育干预方案。比较两组自我管理行为、血糖水平及监测情况、分娩结局、负性情绪。结果干预后,观察组饮食、运动、血糖监测、遵医嘱用药等自我管理行为(SDSCA)评分以及定期监测血糖率均较对照组高(均P<0.05);干预后,观察组空腹血糖、餐后2 h血糖、糖化血红蛋白(HbA1c)等血糖水平、总不良妊娠结局发生率以及负性情绪评分均较对照组低(均P<0.05)。结论信息框架对妊娠期糖尿病孕妇自我管理行为的影响较为积极,有助于改善患者血糖情况,改善心理情况,降低不良分娩结局发生率。

关键词：妊娠期糖尿病信息框架自我管理行为血糖分娩结局

Study on the Characteristics of Seismic Activity in the Interior of the Ordos Block

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Earthquake Research in China 2009年第4期23卷 467-479页

作者： xu weijin Gao Mengtan Ren xuemei Feng Xijie Institute of Geophysics China Earthquake Administration Beijing 100081 China Earthquake Administration of Shaanxi Province Xi＇an 710068 China Earthquake Administration of Ningxia Hui Autonomous Region Yinchuan 750001 China

The temporal and spatial distribution characteristics of earthquakes in the Ordos block are studied by using historical earthquake data,instrument data of the regional seismic network around the Ordos block and the historical felt earthquake data,and the relationship between seismicity in the Ordos block and seismicity around the Ordos block is discussed. The result shows that the Ordos block is a typical moderate-strong earthquake active region where many M_S≥5.0 destructive earthquakes have occurred. The temporal and spatial distribution of earthquakes in the Ordos block is asymmetrical. The temporal distribution of earthquakes shows a periodic characteristic and the activity of earthquakes in the southeastern Ordos block is higher than in the northwest Ordos block. The M_S≥5.0 moderate size earthquakes in the Ordos block are controlled by the M_S≥6.0 earthquake around the Ordos block.

关键词： Ordos block Seismic activity Spatio-temporal distribution

Domain Engineering the Flexoelectric Response of BaTiO_(3)–SrTiO_(3) Binary Films:A Phase Field Study

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Acta Mechanica Solida Sinica 2024年第4期37卷 590-597页

作者： Junyu Tao Fan Zhang Jianyuan Zhang weijin Chen Yue Zheng School of Materials Shenzhen Campus of Sun Yat-sen UniversityShenzhen518107China Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices School of PhysicsSun Yat-sen UniversityGuangzhou510275China State Key Laboratory of Optoelectronic Materials and Technologies School of PhysicsSun Yat-sen UniversityGuangzhou510275China Centre for Physical Mechanics and Biophysics School of PhysicsSun Yat-sen UniversityGuangzhou510275China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai519082China

The flexoelectric effect describes the interplay between material polarization and strain *** much research has focused on control strategies for flexoelectricity,the impact of ferroelectric domain structure on the flexoelectric effect remains *** phase field simulations,we conduct a comparative study on the flexoelectric response of two types of BaTiO_(3)–SrTiO_(3) binary films:BaTiO_(3)–SrTiO_(3) multilayers and(Ba,Sr)TiO_(3) solid *** findings reveal that the flexoelectric response of these two systems,at the same Ba/Sr ratio,differs not only in magnitude but also in other aspects like temperature dependence,linearity,and hysteresis,due to their different ferroelectric domain structures and evolution *** study deepens our current understanding of flexoelectricity in ferroelectrics and suggests“domain engineering”as a potential way to tailor this effect.

关键词： Ferroelectric Flexoelectricity Multilayers Solid solution Phase field

Fluidization stability and periodic fluctuations in gas–solid separation fluidized bed using Geldart A dense medium

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Particuology 2024年第7期90卷 522-534页

作者： weijin Liu Dan Wang Liang Dong Enhui Zhou Tatiana Aleksandrova Chenyang Zhou Chenlong Duan Key Laboratory of Coal Processing and Efficient Utilization(China University of Mining&Technology) Ministry of EducationXuzhou 221116China School of Chemical Engineering&Technology China University of Mining&TechnologyXuzhou 221116China Department of Chemical and Biochemical Engineering The University of Western OntarioLondonOntario N6A 5B9Canada Mineral Processing Department Saint Petersburg Mining UniversitySt.Petersburg 199106Russia

Gas–solid separation fluidized bed is a typical method for coal separation without water *** A particles is also considered as the ideal dense medium to strengthen separation *** stability reflects the bed pressure fluctuations and the distribution of bubble and emulsion phases,affecting the separation *** the main frequency of pressure fluctuations can directly reflect the degree of pressure ***,the detailed fluidization stability is analyzed combined the method of standard deviation of pressure fluctuations,power spectral density,etc.,for Geldart A *** results showed that maintaining an appropriate gas velocity resulted in an average bed pressure of around 2000 *** main frequency is mainly concentrated around 1–1.5 ***,a prediction model of the main frequency of pressure fluctuations is established,and the error can be controlled within±*** investigation further proved the stable fluidization of Geldart A particles and provides a method for predicting the main frequency of pressure fluctuations in the gas–solid separation fluidized bed.

关键词： Geldart A dense medium Fluidization stability Periodic fluctuations Pressure fluctuations frequency Gas–solid separation fluidized bed

人工槽模拟GH4169涡轮盘表面裂纹缺陷的微磁检测

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航空学报 2015年第10期36卷 3450-3456页

作者：胡博于润桥徐伟津南昌航空大学无损检测技术教育部重点实验室南昌330063 中国石油川庆钻探公司安全环保质量监督检测研究院广汉618300

针对航空发动机涡轮盘表面裂纹缺陷,提出一种地磁场环境下的微磁无损检测(NDT)方法。磁化试验测得了广泛使用的镍基高温合金GH4169材料的磁化特性曲线,通过磁性分析,证明该材料的相对磁导率略大于空气的相对磁导率,为弱顺磁性物质。理... 详细信息

针对航空发动机涡轮盘表面裂纹缺陷,提出一种地磁场环境下的微磁无损检测(NDT)方法。磁化试验测得了广泛使用的镍基高温合金GH4169材料的磁化特性曲线,通过磁性分析,证明该材料的相对磁导率略大于空气的相对磁导率,为弱顺磁性物质。理论分析了微磁检测适用于涡轮盘试件的检测原理和缺陷处的磁异常特征,通过对预置人工槽缺陷的涡轮盘试块进行检测,验证了理论分析的正确性。检测结果表明,随着涡轮盘表面裂纹宽度和深度的增加,磁异常的宽度和峰值也相应增加,裂纹宽度相同时,深度越深,或者说深宽比越大,磁异常越明显,且裂纹产生的位置对定位精度存在一定的影响。该微磁检测方法为涡轮盘表面裂纹缺陷的有效检测提供了新的思路,能进一步推广应用于飞机发动机的其他部件,如转子叶片、涡轮轴等,以及飞机机身上具有相似磁学特性的材料的无损检测。

关键词：涡轮盘裂纹微磁无损检测地磁场