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Treatment of severe upper gastrointestinal bleeding caused by Mallory-Weiss syndrome after primary coronary intervention for acute inferior wall myocardial infarction: A case report

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World Journal of Clinical Cases 2019年第24期7卷 4407-4413页

作者： Bei-Bei Du Xing-Tong Wang Xiang-Dong li Pei-Pei li Wei-Wei Chen si-ming li Ping Yang Department of Cardiology China-Japan Union Hospital of Jilin UniversityJilin Provincial Engineering Laboratory for Endothelial Function and Genetic Diagnosis of Cardiovascular DiseaseChangchun 130031Jilin ProvinceChina Department of Hematology and Oncology Cancer CenterThe First Hospital of Jilin UniversityChangchun 130031Jilin ProvinceChina

BACKGROUND Upper gastrointestinal bleeding(UGIB) after an acute myocardial infarction(AMI) is not an uncommon complication. Acute UGIB caused by Mallory-Weiss syndrome(MWS) is usually a dire situation with massive bleeding and hemodynamic instability. Acute UGIB caused by MWS after an AMI has not been previously *** SUMMARY A 57-year-old man with acute inferior wall ST elevation myocardial infarction underwent a primary coronary intervention of the acutely occluded right coronary artery. six hours after the intervention, the patient had a severe UGIB,followed by vomiting. His hemoglobin level dropped from 15.3 g/d L to 9.7 g/d L. In addition to blood transfusion and a gastric acid inhibition treatment,early endoscopy was employed and MWS was diagnosed. Bleeding was stopped by endoscopic placement of titanium *** Bleeding complications after stent implantation can pose a dilemma. MWS is a rare but severe cause of acute UGIB after an AMI that requires an early endoscopic diagnosis and a hemoclip intervention to stop bleeding.

关键词： Acute upper gastrointestinal bleeding Mallory-Weiss syndrome Primary coronary intervention Acute myocardial infarction Endoscopic treatment Case report

基于集总元件和负微分元件的有源可调谐超材料传输线

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物理学报 2014年第2期63卷 305-311页

作者：司黎明侯吉旋刘吕昕北京理工大学信息与电子学院电子工程系毫米波与太赫兹技术北京市重点实验室北京100081 东南大学物理系南京211189

针对无源超材料高色散、高损耗和均匀性差的缺点,利用集总元件和负微分元件设计、加工了一种微波频段的有源可调谐超材料传输线,并对其进行了测试.实验获得了具有散射参数随外加偏置电压改变而变化的电控可调谐特性以及衰减常数为负值... 详细信息

针对无源超材料高色散、高损耗和均匀性差的缺点,利用集总元件和负微分元件设计、加工了一种微波频段的有源可调谐超材料传输线,并对其进行了测试.实验获得了具有散射参数随外加偏置电压改变而变化的电控可调谐特性以及衰减常数为负值的有源超材料传输线.

关键词：有源超材料可调谐超材料集总元件负微分元件

Turbulent Agglomeration of Microparticles in a Cylinder Wake Flow Using LES-DEM:Focusing on the Effect of the Reynolds Number

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Journal of Thermal Science 2025年第1期34卷 34-49页

作者： WANG Shuang MU lin li Xue XIE Jun DONG ming School of Energy and Power Engineering Dalian University of Technology School of Optical Information and Energy Engineering Wuhan Institute of Technology School of Energy and Environment Shenyang Aerospace University

Turbulent agglomeration is viewed as a promising technology for enhancing fine particle removal *** better understand particle transport,agglomeration behaviors,and fluid-particle interactions,we numerically explored these phenomena under cylindrical vortex wake influence using a coupled large eddy simulation and discrete element method（LES-DEM） *** validity of the LES approach was verified by comparison with available direct numerical simulation（DNS） *** adopted the Johnson-Kendall-Roberts（JKR） contact model for particle-particle *** particle dispersion and agglomeration characteristics of particles with different diameters（dp=2-20 μm） in the laminar and transition of shear layer（TrSL） flow regimes were *** particles were concentrated at the vortex centers,while larger particles accumulated around the *** agglomeration efficiency exhibited an M-shaped profile spanwise（y-direction）.With increasing Reynolds number,the agglomeration efficiency and turbulence intensity *** particle agglomeration efficiency peaks at a certain Reynolds ***,at higher Reynolds numbers,reducing the residence time of particles in the flow field decreases the agglomeration efficiency.

关键词： discrete element method large eddy simulation microparticle particle agglomeration

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矿井排水智能控制及评价系统

西安科技大学学报 2017年第5期37卷 712-718页

作者：司明李占利西安科技大学计算机科学与技术学院陕西西安710054

根据煤矿智能化的要求,提出一个矿井排水智能控制及评价系统。该系统采用模糊控制器构建智能控制模型,实现水泵的智能控制,对排水系统进行安全性、经济性和可靠性等系统评价,为管理人员提供决策的参考依据。基于Web技术设计开发了B/S结... 详细信息

根据煤矿智能化的要求,提出一个矿井排水智能控制及评价系统。该系统采用模糊控制器构建智能控制模型,实现水泵的智能控制,对排水系统进行安全性、经济性和可靠性等系统评价,为管理人员提供决策的参考依据。基于Web技术设计开发了B/S结构的矿井排水智能控制及评价系统,应用结果表明,系统应急能力强,节约用电,降低设备损耗。

关键词：排水智能化控制评价应急

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磁控法测定热发射电子的速率分布

大学物理 2014年第12期33卷 21-22,50页

作者：侯吉旋司黎明东南大学物理系南京211189 北京理工大学信息与电子学院毫米波与太赫兹技术北京市重点实验室北京100081

利用磁控法直接测定了真空二极管中发射的热电子的速率分布,并证实了热电子的速率分布有别于麦克斯韦速率分布率.由于空间电荷效应的存在,在磁场较大的情况下数据与理论存在偏差.

关键词：磁控法热电子发射速率分布率

Investigation of bubbles escape behavior from low basicity mold flux for high-Mn high-Al steels using 3D X-ray microscope

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 102-110页

作者： Qiang liu Xiang li Shen Du ming Gao Yanbin Yin Jiongming Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

During the continuous casting process of high-Mn high-Al steels,various types of gases such as Ar need to escape through the top of the *** which,the behavior of bubbles traversing the liquid slag serves as a restrictive link,closely associated with viscosity and the thickness of liquid *** contrast to two-dimensional surface observation,three-dimensional(3D)analysis method can offer a more intuitive,accurate,and comprehensive ***,this study employs a 3D X-ray microscope(3D-XRM)to obtained spatial distribution and 3D morphological characteristics of residual bubbles in mold flux under different basicity of liquid slag,different temperatures,and different holding *** results indicate that as basicity of slag increases from 0.52 to 1.03,temperature increases from 1423 to 1573 K,the viscosity of slag decreases,the floating rate of bubbles *** addition,when holding time increases from 10 to 30 s,the bubbles floating distance increases,and the volume fraction and average equivalent sphere diameter of the bubbles solidified in the mold flux gradually *** one word,increasing the basicity,temperature,and holding time leading to an increase in the removal rate of bubbles especially for the *** findings of bubbles escape behavior provide valuable insights into optimizing low basicity mold flux for high-Mn high-Al steels.

关键词： mold flux low basicity bubbles three-dimensional X-ray microscope viscosity

Multilevel analysis of the central-peripheral-target organ pathway:contributing to recovery after peripheral nerve injury

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Neural Regeneration Research 2025年第10期20卷 2807-2822页

作者： Xizi Song Ruixin li Xiaolei Chu Qi li Ruihua li Qingwen li Kai-Yu Tong Xiaosong Gu Dong ming Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Haihe Laboratory of Brain-Machine Interface and Human-Machine Fusion TianjinChina Department of Rehabilitation Tianjin University Tianjin HospitalTianjinChina Department of Hand Microsurgery Tianjin University Tianjin HospitalTianjinChina School of Exercise and Health Tianjin University of SportTianjinChina Department of Biomedical Engineering the Chinese University of Hong KongHong Kong Special Administrative RegionChina

Peripheral nerve injury is a common neurological condition that often leads to severe functional limitations and *** on the pathogenesis of peripheral nerve injury has focused on pathological changes at individual injury sites,neglecting multilevel pathological analysis of the overall nervous system and target *** has led to restrictions on current therapeutic *** this paper,we first summarize the potential mechanisms of peripheral nerve injury from a holistic perspective,covering the central nervous system,peripheral nervous system,and target *** peripheral nerve injury,the cortical plasticity of the brain is altered due to damage to and regeneration of peripheral nerves;changes such as neuronal apoptosis and axonal demyelination occur in the spinal *** nerve will undergo axonal regeneration,activation of Schwann cells,inflammatory response,and vascular system regeneration at the injury *** damage to target organs can occur,including skeletal muscle atrophy and sensory receptor *** then provide a brief review of the research advances in therapeutic approaches to peripheral nerve *** main current treatments are conducted passively and include physical factor rehabilitation,pharmacological treatments,cell-based therapies,and physical ***,most treatments only partially address the problem and cannot complete the systematic recovery of the entire central nervous system-peripheral nervous system-target organ ***,we should further explore multilevel treatment options that produce effective,long-lasting results,perhaps requiring a combination of passive(traditional)and active(novel)treatment methods to stimulate rehabilitation at the central-peripheral-target organ levels to achieve better functional recovery.

关键词： central nervous system central peripheral target organ multilevel pathological analysis nerve regeneration peripheral nerve injury peripheral nervous system target organs therapeutic approach

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回归后香港的土地和住房政策政治经济分析

当代港澳研究 2014年第2期 17-29页

作者：李思名香港浸会大学林思齐东西学术交流研究所

香港特别行政区成立以来的16年充满挑战,特区政府施政举步维艰。回归初期为了改善居住环境推出的房地产发展政策却碰上亚洲金融风暴,导致香港房地产市场崩溃,大量市民成为负资产者,特区政府为此付出沉重的代价。自此以后,特区政府长期... 详细信息

香港特别行政区成立以来的16年充满挑战,特区政府施政举步维艰。回归初期为了改善居住环境推出的房地产发展政策却碰上亚洲金融风暴,导致香港房地产市场崩溃,大量市民成为负资产者,特区政府为此付出沉重的代价。自此以后,特区政府长期以市场主导为借口,大幅度减少公屋的供应,并让房地产发展商主导土地一级市场,减慢土地开发速度。2007~2008年世界金融风暴并没有对香港的房地产市场带来严重的冲击;反而因为量化宽松,资金泛滥,名义和实质息率长期处于极低水平,一个新的房地产泡沫快速形成。过去几年特区政府推出多项措施以期降低泡沫破灭的风险,包括大幅度增加房地产的交易成本,重新掌控一级土地市场,以及加快加大土地开发的速度和规模。但是,由于种种原因,政策推行遇到极大的阻力,而包括特首在内的特区政府的民意支持度和认受性也没有因为良好的政策意愿而有所提升。

关键词：房地产泡沫香港回归金融风暴土地和住房政策

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从微观角度看理想气体的绝热过程

大学物理 2017年第3期36卷 14-15页

作者：侯吉旋司黎明翁华东南大学物理系江苏南京211189 北京理工大学信息与电子学院电子工程系北京100081 南京外国语学校江苏南京210008

利用统计物理,我们研究了缓慢拉动活塞时处于绝热气缸中的理想气体的绝热变化,从微观角度推导出了理想气体的绝热方程.

关键词：理想气体绝热过程气体动理论