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Excellent strength-ductility synergy properties of gradient nano-grained structural CrCoNi medium-entropy alloy

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Journal of Materials Science & Technology 2022年第17期112卷 195-201页

作者： Wenjie Lu Xian Luo dou ning Miao Wang Chao Yang Miaoquan Li Yanqing Yang Pengtao Li Bin Huang State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China Langu Institute for Materials Analysis Co.Ltd Weihai 264207China School of Physics and Optoelectronic Engineering Yangtze UniversityJingzhou 434023China

Tailoring heterogeneities could bring out excellent strength-ductility synergy properties.A gradient nanograined(GNG)structure,*** size range from nanometer(~50 nm)at topest surface layer to micrometer(~1.3μm)at center layer,was successfully introduced into CrCoNi medium-entropy alloy(MEA)by means of high energy shot peening in this *** results demonstrated that this GNG CrCoNi MEA shows excellent strength and ductility combination properties,exhibiting high yield strength and ultimate tensile strength of~1215 MPa and~1524 MPa,respectively,while remaining a good ductility of~23.0%.The extraordinary hetero-deformation induced(HDI)hardening origins from heterogeneous structure,*** structure,which contributes to the majority strength *** reinforced heterogeneous structure during tension process results in the enhanced HDI hardening effect,which facilitates excellent ductility and strain hardening capacity at high-level *** work provide not only a feasible and effective way to strengthen the CrCoNi MEA,and other low stacking faults energy(SFE)materials,but also an useful insight to understanding HDI hardening in heterogeneous structure.

关键词： Medium-entropy alloy Gradient nano-grained structure High energy shot peening Hetero-deformation induced hardening Strength-ductility synergy

Application Effects of Total Percutaneous Technique in Endovascular Repair of Abdominal Aortic Aneurysm

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Journal of Clinical and Nursing Research 2021年第1期5卷 72-75页

作者： ning dou Jingjing Tan Jian Zuo lst Department of Surgery Shanghai Fourth People's Hospital Affiliated to Tongji UniversityShanghai 200081China Department of Anesthesia and Perioperative Medicine Shanghai Fourth People's Hospital Affiliated to Tongji UniversityShanghai 200081China Department of Cardiovascular Surgery First Affiliated Hospital of Air Force MilitaryMedical University of Chinese People's Liberation ArmyXian710032China

Objective:To investigate the effectiveness of total percutaneous technique in endovascular repair of abdominal aortic ***:Divide patients into two groups based on random *** control group received conventional treatment,and the experimental group received modified *** changes in self-management ability,comfort level and recovery time before and after treatment were compared between the two ***:The comfort level and self-management ability of the experimental group were significantly higher than that of the control group,and the recovery time was significantly shorter than that of the control *** difference was statistically significant(P<0.05).Conclusion:Puncture suture can safely and effectively repair the intracavity of abdominal aortic aneurysm.

关键词： Total percutaneous technique Abdominal aortic aneurysm Endovascular repair

Comparison of Clinical Effects of Abdominal Aortic Aneurysm Treatment with Open and Endovascular Techniques

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Proceedings of Anticancer Research 2020年第6期4卷 41-44页

作者： ning dou Jing-jing Tan Jian Zuo 1st Department of Surgery Shanghai Fourth People's Hospital Affiliated to Tongji UniversityShanghai 200081China Department of Anesthesia and Perioperative Medicine Shanghai Fourth People's Hospital Affiliated to Tongji UniversityShanghai 200081China Department of Cardiovascular Surgery First Affiliated Hospital of Air Force Military Medical University of Chinese People's Liberation ArmyXi’an 710032China

Objective:To compare the therapeutic effects of endovascular and open surgery on abdominal aortic ***:From June 2019 to May 2020,60 cases of abdominal aortic aneurysms(AAA)were divided into observation group(30 cases in endovascular technique group)and control group(30 cases in open technique group).Results:The blood loss,operative time and blood transfusion of the observation group were significantly lower than those of the control group(P<0.05).The incidence of postoperative complications is low,and the incidence of longterm complications is relatively ***:In the treatment of abdominal aortic aneurysm,endovascular technology has the advantages of low risk,less trauma,and quick recovery after *** surgery is suitable for patients who cannot receive endovascular *** order to achieve good treatment effects,it is necessary to choose an appropriate treatment method according to the actual situation of the patient.

关键词： Laparotomy technique Endovascular technique Abdominal aortic aneurysm Clinical

Research Status of Preemptive Analgesia and its Application in Clinical Anesthesia

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Journal of Clinical and Nursing Research 2021年第2期5卷 73-76页

作者： Jingjing Tan ning dou Gang Bai Weiji Qiu Yan Zhao Department of Anesthesiology and Perioperative Medicine Shanghai Fourth People's Hospital Affiliated to Tongji UniversityShanghai 200081China The First Department of Surgery Shanghai Fourth People's Hospital Affiliated to Tongji UniversityShanghai 200081China

The most effective treatment for postoperative pain is to reduce it by preventing or reducing the sensitivity and sensory disturbance on the central nervous system during the operation,prolonging the pain-relief time and reducing the use of *** analgesia refers to the intervention of central neuraxis sensitization and peripheral sensitization to prevent the expansion and spread of pain,so as to achieve postoperative *** postoperative patient-controlled analgesia,preemptive analgesia has become a common treatment method for ***,the clinical specifications for advanced analgesia are still *** on this,this paper reviews the use of advanced analgesia drugs and their clinical applications.

关键词： Preemptive analgesia Clinical Anesthesia

Effects of Surgical Anesthesia on Postoperative Cognitive Function of Elderly Patients

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Proceedings of Anticancer Research 2021年第1期5卷 31-34页

作者： Jingjing Tan ning dou Gang Bai Weiji Qiu Yan Zhao Department of Anesthesiology and Perioperative Medicine Shanghai Fourth People's HospitalTongji UniversityShanghai 200081China First Department of Surgery Shanghai Fourth People's HospitalTongji UniversityShanghai 200081China

Postoperative cognitive dysfunction in elderly patients is a common complication after surgical *** occurrence of complications is also related to many other factors,and the cause is still *** paper reviews the influencing factors and corresponding measures for postoperative cognitive function of elderly patients caused by anesthesia.

关键词： Surgical anesthesia Elderly patients Postoperative cognition

Acute primary angle closure during the Omicron outbreak

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International Journal of Ophthalmology(English edition) 2024年第7期17卷 1337-1343页

作者： Dong Fang Wang-Ting Li Jia Liang Lu Chen ning-Xin dou Hui-Yan Zheng Can-Feng Huang Ting Xie Yi-Jing Zhuang Peng-Feng Li Xing-Xing Mao Shao-Chong Zhang Shenzhen Eye Hospital Jinan UniversityShenzhen Key Laboratory of OphthalmologyShenzhen 518040Guangdong ProvinceChina

AIM:To investigate Omicron’s impact on clinical presentation of acute primary angle closure(APAC)in ***:A consecutive case series with historical controls was conducted at Shenzhen Eye Hospital,the largest specialized hospital in Shenzhen,*** records from a two-month period during the Omicron pandemic(December 1,2022,to January 31,2023)were compared with records from two control groups(12/2018–1/2019 and 12/2021–1/2022)before *** with APAC were included,and the prevalence of APAC and demographic characteristics in Omicron-infected and noninfected patients were ***:Seventy-one(23.43%)out of 303 patients were diagnosed with APAC in the pandemic cohort,which was 2.98 and 2.61 times higher than that in control cohorts(7.87%in 2019,8.96%in 2022,P<0.001).The pandemic cohort has significantly higher Omicron-infected rate(78.87%vs 0 vs 0;P<0.001),lower proportion of glaucoma history(16.90%vs 42.86%vs 41.67%,P=0.005),higher surgical rate(95.77%vs 83.33%vs 78.57%,P=0.024),higher total medical costs and larger pupil diameter(5.63±0.15 vs 4.68±0.15 vs 4.69±0.22 mm,P<0.01).In 83%Omicron-infected patients,ocular symptoms appeared within 3d after systemic symptoms *** multivariate analysis,Omicron infection(P<0.001)was the only independent predictor of pupil ***:In the Omicron epidemic in China,there is an increase of prevalence and severity of APAC,particularly focusing on the first 3d following infection.

关键词： Omicron acute primary angle closure ocular symptoms

Stephenson-Ⅲ六杆机构死点位置的研究

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机械设计 2009年第11期26卷 45-47,70页

作者：郭晓宁邹炎火窦宁福州大学机械工程及自动化学院福建福州350108

当机构处于死点位置时,其机械效率等于0。文中基于机构机械效率与瞬心之间的关系,给出了机构处于死点位置时机构瞬心需满足的充要几何条件,全面讨论了Stephenson-Ⅲ型六杆机构所有可能发生死点的位置;它避免了处理复杂代数方程,并且在... 详细信息

当机构处于死点位置时,其机械效率等于0。文中基于机构机械效率与瞬心之间的关系,给出了机构处于死点位置时机构瞬心需满足的充要几何条件,全面讨论了Stephenson-Ⅲ型六杆机构所有可能发生死点的位置;它避免了处理复杂代数方程,并且在处理多杆机构时优越性更加明显,对于含有移动副的连杆机构也是可用的。

关键词： Stephenson-Ⅲ型六杆机构机械效率死点瞬心

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面向自然图像的年画风格化算法

计算机应用研究 2016年第2期33卷 636-640页

作者：窦宁万亮天津大学软件学院天津300072

年画作为中国民间艺术的优秀代表之一,其风格对艺术创作具有重要意义。为了快速方便地实现自然图像的年画风格化,设计了一种自动化的年画风格化算法框架,并尽可能准确地保持自然图像的原有图案与颜色分配。对于一幅用户给定的自然图像,... 详细信息

年画作为中国民间艺术的优秀代表之一,其风格对艺术创作具有重要意义。为了快速方便地实现自然图像的年画风格化,设计了一种自动化的年画风格化算法框架,并尽可能准确地保持自然图像的原有图案与颜色分配。对于一幅用户给定的自然图像,算法首先对图像进行自动颜色分割聚类,提取关键线条作为年画轮廓线;然后运用基于优化的年画配色映射方法将不同的分割区域重新着色;最后通过年画风格细节增强,使结果图的颜色风格更加接近年画风格。针对颜色配色优化,算法综合考量了生成图像与原图像的颜色相似度和相邻色块的颜色对比度,并利用差分进化策略对能量方程进行最小化求解得出合理的颜色配置方案。在实验中进行了几组不同产地的年画风格化实验,结果是算法可有效地将一幅自然图像自动转换为年画风格,且效果较自然,颜色具有地方特色。

关键词：年画风格化颜色配色风格细节增强

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国外大学生就业指导的启示

辽宁科技学院学报 2009年第1期11卷 72-73页

作者：窦宁辽宁师范大学政治与行政学院辽宁大连116029 辽宁科技学院管理系辽宁本溪117022

目前我国基本实现了高等教育的大众化,但同时也出现了高等教育的结构失调,最突出的一点是大学生就业难。就业指导在国外高校起步较早,并且经过长期的实践目前发展已达到成熟。他们在就业指导机构的建设、开展就业指导的形式、内容以及... 详细信息

目前我国基本实现了高等教育的大众化,但同时也出现了高等教育的结构失调,最突出的一点是大学生就业难。就业指导在国外高校起步较早,并且经过长期的实践目前发展已达到成熟。他们在就业指导机构的建设、开展就业指导的形式、内容以及就业指导理论研究方面都对我国高校开展这项工作具有较大的指导和借鉴意义。

关键词：国外就业指导启示