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Chinese Medical Journal 2015年第20期128卷 2818-2820页

作者： Jie Yan chun-Yan shi Lin Yu Hui-Xia Yang Department of Obstetrics and Gynecology Peking University First Hospital Beijing 100034 China

INTRODUCTIONThe incidence of the morbidly adherent placenta has been increasing due to the increased rate of cesarean section. Life-threatening hemorrhage is the major concern for the morbidly adherent placenta, and efficient bleeding control of lower uterine segment is critical to improve outcomes. When traditional conservative methods do not work, further surgical procedures should be attempted. There are several conservative surgical approaches for lower uterine compression, and peripartum hysterectomy is avoided. In the present study, we aimed to report a rather easy suturing method to compress the lower uterine.

关键词： Morbidly Adherent Placenta Folding Sutures Tourniquet Binding

Usefulness of three-dimensional visualization technology in minimally invasive treatment for infected necrotizing pancreatitis

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World Journal of Gastroenterology 2018年第17期24卷 1911-1918页

作者： Peng-Fei Wang Zhi-Wei Liu Shou-Wang Cai Jun-Jun Su Lei He Jian Feng Xian-Lei Xin shi-chun Lu Department of hepatobiliary Surgery PLA General hospital

AIM To explore the value of three-dimensional(3 D) visualization technology in the minimally invasive treatment for infected necrotizing pancreatitis(INP). METHODS Clinical data of 18 patients with INP, who were admitted to the PLA General Hospital in 2017, were retrospectively analyzed. Two-dimensional images of computed tomography were converted into 3 D images based on 3 D visualization technology. The size, number, shape and position of lesions and their relationship with major abdominal vasculature were well displayed. Also, percutaneous catheter drainage(PCD) number and puncture paths were designed through virtual surgery(percutaneous nephroscopic necrosectomy) based on the principle of maximum removal of infected necrosis *** Abdominal 3 D visualization images of all the patients were well reconstructed, and the optimal PCD puncture paths were well designed. Infected necrosis was conveniently removed in abundance using a nephroscope during the following surgery, and the median operation time was 102(102 ± 20.7) min. Only 1 patient underwent endoscopic necrosectomy because of residual necrosis. CONCLUSION The 3 D visualization technology could optimize the PCD puncture paths, improving the drainage effect in patients with INP. Moreover, it significantly increased the efficiency of necrosectomy through the rigid nephroscope. As a result, it decreased operation times and improved the prognosis.

关键词： infected necrotizing pancreatitis threedimensional visualization percutaneous catheter drainage percutaneous nephroscopic necrosectomy

Nd∶YAG激光消融术治疗玻璃体混浊的疗效观察

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国际眼科杂志 2018年第1期18卷 169-171页

作者：史春中国上海市虹口区江湾医院眼科 200434

目的:观察Nd∶YAG激光消融术治疗玻璃体混浊的疗效。方法:回顾性分析2016-10/2017-01我科收治并确诊为玻璃体混浊并采用Nd∶YAG激光治疗的患者78例84眼的临床资料,采用χ~2检验、Mann-Whitney检验、KruskalWallis检验和Spearman检验等... 详细信息

目的:观察Nd∶YAG激光消融术治疗玻璃体混浊的疗效。方法:回顾性分析2016-10/2017-01我科收治并确诊为玻璃体混浊并采用Nd∶YAG激光治疗的患者78例84眼的临床资料,采用χ~2检验、Mann-Whitney检验、KruskalWallis检验和Spearman检验等比较不同病因和玻璃体分级间的治疗效果。结果:治疗2wk后,所有患眼(84眼)中显效66眼(79%),有效16眼(19%),无效2眼(2%),激光治疗的总有效率为98%;不同病因引起的玻璃体混浊,其治疗效果和治疗次数差异没有统计学意义(H=3.842,P=0.146;χ2=0.070,P=0.966);玻璃体混浊Ⅰ级、Ⅱ级的治疗有效率均为100%,Ⅲ级为92%,Ⅳ级为83%,玻璃体混浊分级与疗效呈负相关(rs=-0.027,P=0.013)。Ⅰ级患眼需要治疗1次的有38眼(90%),Ⅱ级的有21眼(88%),Ⅲ级的有9眼(75%),Ⅳ级的有2眼(33%),不同分级的患眼治疗次数差异具有统计学意义(U=2.580,P=0.010)。结论:Nd∶YAG激光玻璃体消融术是治疗玻璃体混浊的一种操作简单、方便。

关键词：钕:钇-铝-石榴石激光激光消融术玻璃体混浊

Enhancement of mechanical properties of duplex Mg-9Li-3Al alloy by Sn and Y addition

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Transactions of Nonferrous Metals Society of China 2018年第1期28卷 30-35页

作者： Li-li CHANG chun-chang shi Hong-wei CUI School of Materials Science and Engineering Shandong University Ji’nan 250061 China School of Materials Science and Engineering Shandong University of Technology Zibo 255000 China

For enhancement of mechanical properties in Mg-9Li-3Al alloys,Mg-9Li-3Al duplex alloys were alloyed by addition of Sn and *** evolution and mechanical property response of as-cast Mg-9Li-3Al alloys by alloying with Sn and Y were investigated by optical microscopy,scanning electron microscopy,X-ray diffractometry and tensile *** results indicate that considerable blocky dendrites of primaryαphase in Mg-9Li-3Al alloys become lath-like due to the addition of *** addition of Y,Mg-9Li-3Al alloy consists of both block-like and lath-likeα-Mg *** as-cast Mg-9Li-3Al-1Sn-1Y alloy shows a yield strength of118MPa,ultimate tensile strength of148MPa and the elongation to failure of21%.Improvement in both strength and elongation of Mg-9Li-3Al alloys with Sn and Y addition is attributed to the combined action of MgLi2Sn and Al2Y intermetallic compounds.

关键词： Mg-Li alloys grain structure tensile properties precipitation strengthening

Aquaporin-4 deficiency attenuates acute lesions but aggravates delayed lesions and microgliosis after cryoinjury to mouse brain

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Neuroscience Bulletin 2012年第1期28卷 61-68页

作者： Wen-Zhen shi chun-Zhen Zhao Bing Zhao Xiao-Liang Zheng San-Hua Fang Yun-Bi Lu Wei-Ping Zhang Zhong Chen Er-Qing Wei Department of Pharmacology and Institute of Neurobiology School of Medicine Zhejiang University Hangzhou 310058China

Objective To determine whether aquaporin-4 （AQP4） regulates acute lesions, delayed lesions, and the associated microglial activation after cryoinjury to the brain. Methods Brain cryoinjury was applied to AQP4 knockout （KO） and wild-type mice. At 24 h and on days 7 and 14 after cryoinjury, lesion volume, neuronal loss, and densities of microglia and astrocytes were determined, and their changes were compared between AQP4 KO and wild-type mice. Results Lesion volume and neuronal loss in AQP4 KO mice were milder at 24 h following cryoinjury, but worsened on days 7 and 14, compared to those in wild-type mice. Besides, microglial density increased more, and astrocyte proliferation and glial scar formation were attenuated on days 7 and 14 in AQP4 KO mice. Conclusion AQP4 deficiency ameliorates acute lesions, but worsens delayed lesions, perhaps due to the microgliosis in the late phase.

关键词： aquaporin-4 gene deficiency cryoinjury microglia astrocyte

Postoperative inflammation as a possible cause of portal vein thrombosis after irreversible electroporation for locally advanced pancreatic cancer

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World Journal of Gastroenterology 2017年第32期23卷 6003-6006页

作者： Jun-Jun Su Ming Su Kai Xu Peng-Fei Wang Li Yan shi-chun Lu Wan-Qing Gu Yong-Liang Chen Division of Gastroenterological Surgery Department of Surgery Shanxi Provincial People’s Hospital Department of Hepatobiliary Surgery Chinese People’s Liberation Army General Hospital

Portal vein thrombosis(PVT) is a rare but serious postoperative complication associated with irreversible electroporation(IRE). We report a case of postoperative PVT in a 54-year-old woman who underwent IRE for locally advanced pancreatic cancer. Drain removal and discharge of the patient from the hospital were scheduled on postoperative day(POD) 7; however, a magnetic resonance imaging scan revealed the presence of PVT. We suspected postoperative inflammation in the pancreas as the main cause of PVT. However, the patient did not undergo any medical treatment because she did not have any clinical symptoms, and she was discharged on POD 8.

关键词： Irreversible electroporation Portal vein thrombosis Locally advanced pancreatic cancer Safety

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堆石料的湿化变形模型

岩土工程学报 2017年第1期39卷 48-55页

作者：迟世春周雄雄大连理工大学海岸与近海工程国家重点实验室辽宁大连116024 大连理工大学建设工程学部水利工程学院工程抗震研究所辽宁大连116024

堆石料的湿化变形严重影响心墙堆石坝初蓄水时的安全。通过分析堆石料单线法湿化试验数据发现,堆石料的湿化应力水平与湿化轴向应变成双曲线关系,但也有学者认为是指数函数关系,通过比较发现双曲线关系表述更佳。分析大量单线法试验数... 详细信息

堆石料的湿化变形严重影响心墙堆石坝初蓄水时的安全。通过分析堆石料单线法湿化试验数据发现,堆石料的湿化应力水平与湿化轴向应变成双曲线关系,但也有学者认为是指数函数关系,通过比较发现双曲线关系表述更佳。分析大量单线法试验数据发现,湿化过程中体积应变增量与轴向应变增量的比值保持不变。由此并根据非线性弹性理论,提出了一个堆石料的湿化本构模型,给出了湿化割线模量与湿化泊松比的表达式。与改进的沈珠江湿化模型比较,该湿化模型与试验数据拟合的更好。研究显示,采用传统Prandtl-Reuss流动法则计算得到的湿化应变在高湿化应力水平下偏小。

关键词：堆石料湿化变形模型湿化应力水平 Prandtl-Reuss流动法则

Analysis of the Rigidity of a Straight Beam Flexible Hinge with Different Geometrical Parameters

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International Journal of Plant Engineering and Management 2009年第4期14卷 234-237页

作者： YANG chun-hui LUO shi-min School of Vocational Technology East China Jiaotong University Nanchang 330013 P.R. China

Flexible hinges are widely used in micro motion robotics. Its rigidity directly influences an organization＇s terminal localization. Its actual structure geometry size cannot satisfy the theoretical analysis completely in a theoretical supposition condition. In this paper, we analyzed the rotation rigidity of a corner-filleted straight beam flexible hinge in different parameters using finite element software ANSYS. The errors are discovered and compared with theoretical results. Through the graph of the flexible hinge parameters and its performance, an analysis of changes of parameters on the performance of a corner-filleted flexible hinge was carried out. The key manufacture parameters that affect the performance of a corner-filleted flexure hinge the most and rules of design are given, which can provide directions of design precision for the flexure hinge.

关键词： flexible hinge corner-filleted finite element analysis rigidity

Comparison of the seasonal evolution of the South Asian high associated with two types of El Ni?o event

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Atmospheric and Oceanic Science Letters 2017年第2期10卷 183-190页

作者： LI Zhen-Kun GUO Dong shi chun-Hua SU Yu-Cheng ZHAO Li-Long CAI Jia-Xi WANG Lin-Wei Shanghai Climate Center Shanghai Meteorological Service Shanghai China Key Laboratory of Meteorological Disaster Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD) Nanjing University of Information Science & Technology Nanjing China Shanghai Public Meteorological Services Centre Shanghai Meteorological Service Shanghai China

EI Nino （EN） episodes can be classified based on their time of onset as spring onset EN （SPEN） events and summer onset EN （SUEN） events. To evaluate the different influences of SPEN and SUEN events on the South Asian high （SAH）, this study compared the seasonal evolution of the SAH （SESAH） associated with SPEN and SUEN events through analysis of geopotential height and zonal wind data derived from NCEP-NCAR Reanalysis-1 and sea surface temperature data obtained from the Hadley Center. The main features of the SESAH during an EN event are similar to its climatological characteristics. Climatologically, the SAH forms in May, strengthens, and moves northwestward in June and July. It does not change much in August, but then it returns south and weakens during September and October. However, its lifespan is shorter and its intensity weaker during EN periods. Furthermore, there are significant differences between the SESAH during SPEN and SUEN events. During a SPEN episode, the movement of the SAH to the northwest during May and June is slower than during a SUEN event, i.e. the SPEN SAH has a shorter lifespan. In comparison with the SUEN SAH, the SPEN SAH in July and September tends more towards the Tibetan high mode rather than the Iranian high mode. The SPEN SAH in October moves southeastward faster than the SUEN SAH, which also indicates that the SAH has a shorter lifespan during a SPEN event than during a SUEN episode.

关键词： South Asian high seasonalevolution El Nino El Nino onset El Nino types

Achievements of the Compendium Bencao Tujing(Illustrated Classic of Materia Medica):A Preliminary Study

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Chinese Medicine and Culture 2022年第2期5卷 84-90页

作者： Lin-Lin Xiu shi-chun Xu Qi-Xuan Wang Shao-Hong Chen Hai-Yan Liu Gan-Sheng Zhong School of Traditional Chinese Medicine Beijing University of Chinese MedicineBeijing 100029China International School Beijing University of Chinese MedicineBeijing 100029China

Bencao Tujing(Illustrated Classic of Materia Medica)is a brilliant and monumental compendium of materia medica by Su Song,which was published in 1061 and gathered ancestral knowledge from the Song dynasty as a legacy for *** compendium emphasized the clinical applications of medicinal materials collected nationwide,which used illustrated atlases as *** descriptions for each medicinal material subsumed the prescriptions containing it and were supplemented with relevant medical *** prescriptions predating the Song dynasty were included,which enhanced the clinical usefulness of the *** ancestral knowledge of materia medica was extensively merged with natural history throughout the compendium,which also made extensive reference to more than 200 Chinese classics,local gazetteers,and published works from the social and natural *** inclusion of natural history and literature works changed the convention used in earlier pharmacopoeias to present medicines based solely on pharmacological *** compendium also pioneered the inclusion of natural history in *** Tujing helped establish China’s leading position in the field of materia *** Song’s meticulous nature,truth-seeking attitude,and adherence to scientific thinking are truly worthy of emulation and promotion.

关键词： Bencao Tujing(Illustrated Classic of Materia Medica) Compendium Chinese materia medica Su Song