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当代建筑 2024年第5期 15-18页

作者：张杰李旻华清华大学建筑学院北京建筑大学建筑与城市规划学院北京清华同衡规划设计研究院有限公司文绿融合保护更新实验室办公室

历史街区不仅是历史文化保护传承的重要载体,还是城市更新的重点实施对象。本文立足于街区文化、环境、经济等综合因素,从城市尺度进行整体思考,探索面向高质量发展的保护与更新方法。

关键词：历史街区保护与更新高质量发展

Reconstructive treatment of symptomatic vertebral artery dissecting aneurysms with Willis covered stent: Initial experience

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Journal of Interventional Medicine 2020年第4期3卷 184-191页

作者： Yi Gu li Chen Yang Zhang Mo Chen YongDong li YueQi Zhu HaiTao Lu liMing Wei PeiLei Zhang minhua li BinXian Gu Jin You Wu Wang Institute of Diagnostic and Interventional Radiology Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghai200233China Zhejiang Shin-an International Hospital 314031China

Background:Symptomatic vertebral artery dissecting aneurysm(VADA)is a challenging disease with controversy on treatment strategy due to anatomic configuration and their nature.Moreover,the outcomes of reconstructive treatment have not been well established.Objective:To evaluate the safety and efficacy of reconstructive endovascular treatment(EVT)for symptomatic VADAs with Willis covered stent.Methods:We evaluated retrospectively 13 patients with symptomatic VADAs who treated with Willis covered stent,compared with stent-assisted coiling(SAC)on the characteristics,posttreatment course,angiographic and clinical follow-up outcomes at an average of 14.4 months(range,3-48 months).Results:A total of 33 patients with symptomatic VADAs were reviewed,23 of these patients with ruptured VADAs.The technical successful rate is 100%respectively in Willis covered stent(Group A)and SAC(Group B,n=20).The initial complete occlusion rate was significant higher in group A(100%)than group B(30%)(plications were not significant different in the two groups.Serial follow-up angiograms revealed 5 recurrent VADAs in group B and no recurrence in group A(p>0.05).No obvious in-stent stenosis and no re-hemorrhage and delayed ischemic symptoms during the follow-up period.The final angiograms of all survived patients demonstrated the complete occlusion rate was higher in group A(100%)than group B(80%),but no significant statistical difference(p>0.05).Clinical outcomes were favorable in 31(93.9%),severe disability occurred in one in group B,and only one death in group A.The final clinical outcomes were also not significant difference in the two groups(p>0.05).Conclusions:Our initial result demonstrated reconstructive EVT with Willis covered stent provides a viable approach for selected symptomatic VADAs involving the intracranial and extracranial segments,which is similar to favorable results with SAC.However,an expanded clinical experiences and larger cohort studies are needed.

关键词： Vertebral artery dissecting aneurysm Endovascular treatment Willis covered stent Stent Coil

Effects of mRNA, Protein Expression and Activity for Myocardial SOD2 by a Single Bout of or Long-Term Strenuous Endurance Exercise in Rats

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Chinese Medicine 2014年第4期5卷 251-258页

作者： Simao Xu Weichun liu minhua li Department of Physical Education Guangxi Normal University Guilin China

Objective: To explore the effects of myocardial SOD2 by strenuous endurance exercise. Methods: 27 grown male SD rats were randomly divided into control group (C), a single bout of strenuous endurance exercise group (E1) and seventh-week strenuous endurance exercise group (E2). Real-time PCR was used to observe the changes of mRNA expression for myocardial SOD2. Western bolt was used to observe the changes of SOD2 protein expression. In addition, SOD2, T-SOD and SOD1 activity changes were observed. Results: Myocardial SOD2 expression level at mRNA and protein of Group E1, E2 was significantly higher than that in group C, and SOD2 and T-SOD activity in group E2 were significantly higher than those in group C. Those changes were more obvious in group E2. Conclusions: Strenuous endurance exercise can improve level of myocardial SOD2 expression at mRNA and protein, and enhance the activity for SOD2, thus increasing the activity for T-SOD. Effect of long-term strenuous endurance exercise was better than a single bout of one.

关键词： SOD2 Strenuous Endurance Exercise Myocardia

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催化装置稳定塔底重沸器内漏原因分析及对策

化工设计通讯 2024年第1期50卷 28-30页

作者：李敏花郭阳冯蕾博陕西延长石油(集团)有限责任公司延安炼油厂陕西延安727406

延安炼油厂联合一车间100万t/a催化裂化装置,自2017年5月以来,管线、设备陆续出现腐蚀泄漏问题。其中,稳定塔底重沸器自2017年12月起先后出现二次泄漏。经查阅大量资料并结合实际分析,稳定塔底重沸器之所以内漏,是因为形成了S-H2S-RSH... 详细信息

延安炼油厂联合一车间100万t/a催化裂化装置,自2017年5月以来,管线、设备陆续出现腐蚀泄漏问题。其中,稳定塔底重沸器自2017年12月起先后出现二次泄漏。经查阅大量资料并结合实际分析,稳定塔底重沸器之所以内漏,是因为形成了S-H2S-RSH型高温腐蚀环境。确定内漏原因后,技术人员通过对硫-高温-重沸器材质三者内在构成的分析、评估,确定采取对E-303管束材质升级改造的措施解决这一问题。通过更换重沸器等一系列措施的实施,实现装置正常生产,助力长周期运行。

关键词：催化裂化稳定塔重沸器腐蚀

Endovascular treatment of blood blister-like aneurysms in the internal carotid artery using a Willis covered stent

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Journal of Interventional Medicine 2018年第3期1卷 157-163页

作者： Yi Gu Binxian Gu Yongdong li Yueqi Zhu Haitao Lu liming Wei Mo Chen minhua li Jieqing Wan Wu Wang Institute of Diagnostic and Interventional Radiology Shanghai Jiao Tong University Affiliated Sixth People's Hospital Department of Neurological Surgery Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine

Background Despite the current availability of flow diverter devices(FDD), problems remains regarding optimal endovascular treatment(EVT) for blood blister-like aneurysms(BBAs) of the internal carotid artery(ICA). Objective To evaluate the safety and efficacy of EVT of BBAs in the ICA with a Willis covered stent. Methods 20 consecutive patients(5 men and 15 women) with ruptured BBAs underwent EVT using a Willis covered stent in two institutions from March 2013 to March 2018. Clinical observations, angiographic characteristics, and procedural and follow-up outcomes were retrospectively evaluated. Results 20 consecutive patients(5 men and 15 women) with ruptured BBAs underwent EVT using a Willis covered stent in two institutions from March 2013 to March 2018. Clinical observations, angiographic characteristics, and procedural and follow-up outcomes were retrospectively evaluated. Conclusion Our initial results demonstrate that reconstructive EVT using a Willis covered stent provides a viable approach to treat ICA BBAs. However, an expanded clinical evaluation and larger cohort are needed to confirm the results.

关键词： blood blister-like aneurysm endovascular treatment Willis covered stent

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丘陵山区黄桃气候品质等级评价模型

应用气象学报 2024年第4期35卷 456-466页

作者：汪天颖李民华吴重池黄安凤杨昌顺杨嫔玲汪天柯湖南省气象科学研究所长沙410118 气象防灾减灾湖南省重点实验室长沙410118 湖南省怀化市气象局怀化418000 湖南省怀化市水果气候品质鉴定重点实验室怀化418000 湖南省株洲市炎陵县气象局株洲412500 湖南省岳阳市岳阳县气象局岳阳414100

利用2019—2023年罗霄山脉中段和雪峰山西侧221~1300 m海拔高度间的黄桃品质观测数据,采用加权求和、相关系数、回归分析、多重共线性分析等方法,构建黄桃气候品质评价指标及主要品质要素气象因子回归模型,并进行独立样本检验,基于模型... 详细信息

利用2019—2023年罗霄山脉中段和雪峰山西侧221~1300 m海拔高度间的黄桃品质观测数据,采用加权求和、相关系数、回归分析、多重共线性分析等方法,构建黄桃气候品质评价指标及主要品质要素气象因子回归模型,并进行独立样本检验,基于模型分析不同海拔高度和采收日期条件下黄桃气候品质等级的时空变化特征。结果表明:黄桃品质要素可溶性固形物含量、可滴定酸含量、果形指数对应主要气象影响因子分别为采收前80 d平均气温、采收前40 d总降水量、5月上旬至6月上旬平均气温及总降水量与采收前10 d平均气温及总降水量,对应气象因子模型的验证样本平均绝对偏差分别为0.397%、0.093%、0.010,均方根误差分别为0.072%、0.014%、0.001,相关系数分别为0.649(p=0.05)、0.718(p=0.01)、0.957(p=0.01),品质评价等级验证完全一致的模型准确率为75%。由模型得到黄桃品质等级为特优及优的总频率随海拔升高、采收日期推移均呈先升后降的趋势,其中600~820 m海拔地区与7月底至8月上旬采收的特优品质频率最高。

关键词：丘陵山区黄桃品质气象影响因子定量模拟时空变化特征

Agricultural Climate Change and Wetland Agriculture Study under the Climate Change in the Sanjiang Plain

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湿地科学 2009年第1期7卷 25-32页

作者： YAN minhua liU Xingtu li Xiujun Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun 130012 Jilin. P. R. China

With linear curvefitting,Mann-kendall method and Yamamoto method,≥10 ℃accumulated temperature and precipitation from May to September of 6 meteorological stations(Baoqing,fujin,Jiamusi,Hegang,Jixi and Hulin) from 1978 to 2007 were used to explore 30-year agricultural climate change and trend in the Sanjiang Plain.The results showed that ≥10 ℃ accumulated temperature of the 6 stations have risen by 141.0 ℃ to 287.4 ℃ when estimated by their significant linear trends(n=30,α=0.05) over the last 30 years(1978 to 2007).The rates of warming for the last 30 years range from 4.70 ℃per year to 9.58 ℃ per year.There are not significant linear trends on precipitation from May to September of the 6 stations over the last 30 years.The period of 1978 to 1998 in which ≥10 ℃ accumulated temperature is lower is consistent with that in which there is more precipitation from May to September,and warming and drying period has occurred in the Sanjiang Plain since 1999.Under the background of warming and drying agricultural climate,high yield cultivation of Phragmites australis and establishment of Phragmites australis-fish(crab) symbiosis ecosystem in natural mire are the ways for reasonable use of natural wetland.The area of paddy fields has been increasing from 7.25×104 ha in 1978 to 121.2×104 ha in 2006.It is proposed that paddy field range should not be expanded blindly toward the north in the Sanjiang Plain,and chilling injury forecast and prevention should be pay attention to.In the area that the chilling injury happens frequently,the rotation between rice and other crops should be implemented.Measures,which combine drainage,store and irrigation,should be taken instead of single drainage on comprehensive control of regional low and wet croplands to ensure controlling drought and flood.

关键词：农作物气候旱灾水稻预防措施

Efficient C-N coupling in electrocatalytic urea generation on copper carbonate hydroxide electrocatalysts

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Journal of Energy Chemistry 2024年第6期93卷 289-298,I0008页

作者： Yinuo Wang Yian Wang Qinglan Zhao Hongming Xu Shangqian Zhu Fei Yang Ernest P.Delmo Xiaoyi Qiu Chi Song Juhee Jang Tiehuai li Ping Gao MDanny Gu minhua Shao Advanced Materials Thrust The Hong Kong University of Science and Technology(Guangzhou)Guangzhou 511400GuangdongChina Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Department of Materials Science and Engineering Southern University of Science and Technology of Chin11088 Xueyuan BoulevardShenzhen 518055GuangdongChina Energy Institute and Chinese National Engineering Research Center for Control&Treatment of Heavy Metal PollutionThe Hong Kong University of Science and TechnologyKowloonHong KongChina Department of Chemistry City University of Hong KongTat Chee AvenueKowloonHong KongChina

Urea generation through electrochemical CO_(2) and NO_(3)~-co-reduction reaction(CO_(2)NO_(3)RR)is still limited by either the low selectivity or yield rate of urea.Herein,we report copper carbonate hydroxide(Cu_2(OH)_2CO_(3))as an efficient CO_(2)NO_(3)RR electrocatalyst with an impressive urea Faradaic efficiency of45.2%±2.1%and a high yield rate of 1564.5±145.2μg h~(-1)mg_(cat)~(-1).More importantly,H_(2) evolution is fully inhibited on this electrocatalyst over a wide potential range between-0.3 and-0.8 V versus reversible hydrogen electrode.Our thermodynamic simulation reveals that the first C-N coupling follows a unique pathway on Cu_2(OH)_2CO_(3) by combining the two intermediates,~*COOH and~*NHO.This work demonstrates that high selectivity and yield rate of urea can be simultaneously achieved on simple Cu-based electrocatalysts in CO_(2)NO_(3)RR,and provide guidance for rational design of more advanced catalysts.

关键词： Copper carbonate hydroxide Co-reduction Urea generation C-N coupling DFT calculation

STRAIN DETERMINATION ON CURVED SURFACES BY OBJECTIVE WHITE liGHT SPECKLES

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Acta Mechanica Sinica 1987年第4期3卷 363-369页

作者： Tu Meirong li minhua Han Jinhu Institute of Mechanics,Chinese Academy of Sciences Institute of Mechanics Chinese Academy of Sciences 中国科学院力学研究所 Institute of Mechanics Academia Sinica

A close-range objective white light speckle method has been used for strain determination onsimply curved surfaces.The speckle field is not the artificially printed random dots but only the radiancedistribution of object surface which was slightly treated before the test to produce fine structure of opticaldetails.The holographic film,instead of holographic plate,is attatched to the curved surface whenilluminated by a flash light.Whole field fringe patterns are obtained with high sensitivities and largeadjustable range.There is no longer a requirement to derive the speckle movement on the image plane fromthe object surface:Defocusing problem has been avoided.It can be practically applied to engineeringproblems with considerable convenience because of the very simple recording system and little demand forenvironmental stability.

关键词： objective speckle white light simply curved surface

工业遗产保护利用引领城市更新的技术创新——景德镇现代瓷业遗产保护与更新系列实践

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建筑学报 2023年第4期 6-11页

作者：张杰李旻华解扬清华大学建筑学院北京100084 北京建筑大学建筑与城市规划学院北京100044 北京清华同衡规划设计研究院有限公司北京100085

基于团队长期的研究和技术探索以及在景德镇10余年的系列工程实践总结,将工业遗产保护利用作为促进城市更新和高质量发展的重要抓手,建立保护传承、新旧共生、功能适配、绿色提升4个维度的技术体系,支撑工业遗产保护利用,引领城市更新。

关键词：景德镇现代工业遗产保护利用城市更新