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Study of glue extrusion after endoscopic N-butyl-2-cyanoacrylate injection on gastric variceal bleeding

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World Journal of Gastroenterology 2009年第39期15卷 4945-4951页

作者： Yan-mei Wang Liu-fang cheng Nan Li Kai Wu Jun-Shan Zhai Ya-Wen Wang Department of Gastroenterology the Second Affiliated Hospital of PLA General Hospital Beijing 100091 China

AIM:To investigate glue extrusion after endoscopic N-butyl-2-cyanoacrylate injection on gastric variceal bleeding and to evaluate the long-term efficacy and safety of this ***:A total of 148 cirrhotic patients in our hospital with esophagogastric variceal bleeding(EGVB) were included in this study.N-butyl-2-cyanoacrylate was mixed with lipiodol in a 1:1 ratio and injected as a bolus of 1-3 mL according to variceal *** underwent endoscopic follow-up the next week,fourth week,second month,fourth month,and seventh month after injection and then every 6 mo to determine the cast *** abdominal X-ray fi lm and ultrasound or computed tomographic scan were also carried out in order to evaluate the time of variceal disappearance and complete extrusion of the *** average follow-up time was 13.1 ***:The instantaneous hemostatic rate was 96.2%.Early re-bleeding after injection in 9 cases(6.2%) was estimated from rejection of *** re-bleeding occurred in 12 patients(8.1%) at 2-18 *** glue cast was extruded into the lumen within one month in 86.1% of patients and eliminated within one *** erosion was seen at the injection position and mucosa edema in the second *** glue casts were extruded in 18 patients(12.1%) after one week and in 64 patients(42.8%) after two *** kinds of glue clumping shapes and colors on endoscopic examination were observed in 127 patients(86.1%) within one month,including punctiform,globular,pillar and *** one patients(27.9%) had glue extrusion after 3 mo and 28 patients(28.9%) after six *** extrusion time was not related to the injection volume of *** was seen in 70.2%(104 cases) *** main complication was re-bleeding resulting from *** prognosis of the patients depended on the severity of the underlying liver ***:Endoscopic injection of cyanoacrylate is highly effective for gastric varices *** glue clump

关键词： Gastric variceal bleeding Glue extruded N-butyl-2-cyanoacrylate Portal hypertension

Suspense,Empathy,Interpretation,and Formation:A Researcher’s Intersubjectivity Process of Conducting Psychobiography on Master Tai-Xu

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Cultural and Religious Studies 2020年第7期8卷 408-415页

作者： cheng-Pin Lai Jung-Hsiang mei-fang cheng Fu Jen Catholic University New Taipei CityTaiwan(R.O.C.) Hsueh Lunghwa University of Science and Technology Taoyuan CityTaiwan(R.O.C.) University of Kang Ning Taipei CityTaiwan(R.O.C.)

In the recent trend of psychobiography,intersubjective psychobiography research has become a prevalent *** a research approach has shifted its focus in terms of methodology and accentuates the intersubjectivity in narrations due to the influence of narrative paradigm,which effectively facilitate researchers’*** study introduced the researcher’s four-stage process of the intersubjective psychobiography research on Master Tai-Xu:suspense,empathy,interpretation,and formation and established a spiral,progressive learning *** model can be applied for cultivating Buddhist practitioners and psychological workers as well as assisting them to engage in deep reflection and to form their own appropriate styles of practicing.

关键词： Master Tai-Xu psychobiography intersubjectivity

沿齐次曲线的强奇异积分算子在调幅空间上的有界性

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数学学报（中文版） 2010年第3期53卷 531-540页

作者：程美芳张震球安徽师范大学数学计算机科学学院芜湖241000 南开大学数学学院天津300071

设Γ_θ(t)为R^n(n≥2)中的齐次曲线,定义沿齐次曲线的强奇异积分算子T_(n,α,β)f(x)=p.v.∫_(-1)~1f(x-Γ_θ(t))(e^((-2πi|t|)^(-β))/(t|t|~α))dt,α,β>0.本文讨论了上述奇异积分算子在广义调幅空间上的有界性.

关键词：强奇异积分调幅空间齐次曲线

Double [5]carbohelicene: facile synthesis, chiroptical properties,isomerization study, and lasing application

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Science China Chemistry 2025年第1期68卷 233-240页

作者： Peipei Liu Yantong Li Meng-Xiang Wu Hao Kang Xiao-Li Zhao Lin Xu Linlin Liu Xiaodong Li Junfeng fang Zhiwei fang Ya cheng Hai-Bo Yang Huakang Yu Xueliang Shi State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular Engineering East China Normal University School of Physics and Optoelectronics South China University of Technology Institute of Polymer Optoelectronic Materials & Devices State Key Laboratory of Luminescent Materials & Devices South China University of Technology School of Physics and Electronic Science Engineering Research Center of Nanophotonics & Advanced Instrument Ministry of EducationEast China Normal University State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University

Double carbohelicenes have attracted considerable attention due to their aesthetic structures, distinct π-conjugation extension, inherent chirality, and intriguing optical and electronic properties. Herein, the concise de novo synthesis of a new double[5]carbohelicene 1 together with its chiroptical properties, isomerization process and lasing application is presented. 1 was synthesized by a simple protocol involving the formation of a 6,6′-bipentacene as the key intermediate. It is worth noting that1 existed as two diastereomers 1-PP/MM and 1-PM, which were successfully isolated and unambiguously confirmed by Xray crystallography. The optical resolution of the racemic 1-PP/MM was successfully achieved by chiral-phase highperformance liquid chromatography（HPLC）, and 1-PP and 1-MM were characterized by circular dichroism. Interestingly, it was found that 1-PP/MM could be completely isomerized to 1-PM upon heating, and the detailed thermodynamics and kinetics of the isomerization process were systematically investigated. 1-PM exhibited deep-red luminescence with emission maximum at 723 nm and fluorescence quantum yield as high as 32.95%. Consequently, we can showcase the lasing application of 1-PM by doping with epoxy resin to assemble a bottle microlaser spontaneously, which the lasing wavelength is 796.6 nm at a threshold of 0.8 m J cm-2. We believe that our studies, including the facile synthesis methodology, detailed isomerization studies, and lasing application, will shed some light on the design and synthesis of novel carbohelical systems with more functions.

关键词： double carbohelicene optical resolution organic laser isomerization X-ray diffraction

Discovery of a new family member of arsenic–vanadium polyoxometalates with high catalytic performance for one-pot coupling of CO2, epoxides and amines

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Tungsten 2025年第1期7卷 80-87页

作者： fang-Qian Wang Yin Zhang Wei-Wei Wang mei-Qian Fu Hong-Bing Mo Wei-Dong Yu Chao Liu Jun Yan College of Chemistry and Chemical Engineering Central South University Junior Education Department Changsha Normal University School of Science Hunan University of Technology and Business

Arsenic-vanadium polyoxometalates（POMs） represent a family of tremendous potential catalysts owing to their peculiar physical and chemical *** in CO2conversion,using POMs to catalyze the conversion of CO2and epoxide into chemical intermediates is the research ***,A new family number of arsenic-vanadium POMs,[N（CH3）4]4[As8V12O38（H2O）]·2H2O({As8V12O38}),was reported and characterized by single-crystal X-ray diffraction,fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy,*** from other allotropicity,{As8V12O38}shows a different structure pattern with an I-43d *** obtained {As8V12O38} was employed as a catalyst for the *** initial catalytic reaction confirmed that {As8V12O38} can catalyze the formation of epoxy carbonate by using 1.01 kPa CO2and epoxide at 70℃.Furtherly,when added amine in the catalytic system,oxazolidinone could be obtained by high yields,which provides an efficient way to convert CO2into profitable ***,a possible catalytic reaction mechanism was proposed by using different characterization analyses.{As8V12O38} first catalyzes the epoxide and CO2to form an epoxy carbonate and then catalyzes epoxy carbonate and benzylamine into oxazolidinone.

关键词： Arsenic CO2 conversion Oxazolidinone Polyoxometalates Vanadium

陕西榆林地区农田灯诱地下害虫种类组成及优势种群发生动态

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环境昆虫学报 2023年第1期45卷 93-100页

作者：阎雄飞梅成芳唐立郭艳芳梅蕊樊振梅张成利吴疆榆林学院生命科学学院陕西榆林719000 陕西榆林榆阳区农业技术推广中心陕西榆林719000 榆林学院信息工程学院陕西榆林719000

为了明确陕西榆林地区农田地下害虫种类组成及优势种群发生动态,于2016年4月1日至2019年9月28日,在陕西省榆林市现代农业示范园,设置太阳能自动虫情测报箱对地下害虫进行收集,在室内对标本进行鉴定和数据分析。在榆林市农田一共灯诱到... 详细信息

为了明确陕西榆林地区农田地下害虫种类组成及优势种群发生动态,于2016年4月1日至2019年9月28日,在陕西省榆林市现代农业示范园,设置太阳能自动虫情测报箱对地下害虫进行收集,在室内对标本进行鉴定和数据分析。在榆林市农田一共灯诱到地下害虫12种,隶属3目5科。地下害虫混合种群发生期为4月中旬至9月上旬,盛发期为4月下旬至8月上旬。小地老虎Agrotis ypsilon、东方绢金龟Maladera orientalis、阔胫绢金龟Maladera verticalis和黄褐丽金龟Anomala exoleta是榆林农田地下害虫主要优势种群。小地老虎灯诱高峰期为4月上旬至5月中旬以及6月上旬至7月下旬,东方绢金龟的灯诱高峰期为4月中旬至6月中旬,阔胫绢金龟灯诱高峰期为6月上旬至8月上旬,黄褐丽金龟灯诱高峰期为6月中旬至7月上旬。本研究为榆林地区农田地下害虫的监测和综合治理提供了基础资料。

关键词：地下害虫黑光灯诱优势种种群动态

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碱湖高产碱性蛋白酶菌的选育和产酶条件研究

中国海洋大学学报（自然科学版） 2005年第4期35卷 613-617页

作者：梅承芳江晓路牟海津王鹏中国海洋大学生命科学与技术学部山东青岛266003

以分离自碱湖的产碱性蛋白酶菌***33为出发株,经紫外线、硫酸二乙酯多次复合诱变,获得一高产突变株***3351,其产生的碱性蛋白酶活力是出发菌株的5.74倍,48h发酵液酶活由350U/mL提高至2010U/mL。同时对菌株DL3351的产酶培养基和条件进行... 详细信息

以分离自碱湖的产碱性蛋白酶菌***33为出发株,经紫外线、硫酸二乙酯多次复合诱变,获得一高产突变株***3351,其产生的碱性蛋白酶活力是出发菌株的5.74倍,48h发酵液酶活由350U/mL提高至2010U/mL。同时对菌株DL3351的产酶培养基和条件进行了优化,以最适产酶培养基26℃对***3351进行摇瓶发酵,发酵40h,酶活达3268U/mL。

关键词：碱湖碱性蛋白酶 V.metschnikovii DL33-51

基于红外光谱和扫描电镜的川贝母粉末掺杂鉴别研究

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南京中医药大学学报 2017年第4期33卷 417-419页

作者：刘芳郑义蕾王霄刘红梅方成鑫郭力成都中医药大学药学院中药材标准化教育部重点实验室四川省中药资源系统研究与开发利用重点实验室--省部共建国家重点实验室培育基地四川成都611137

目的开展川贝母粉末饮片的掺杂鉴别研究。方法采用傅里叶红外光谱法(FIR)和扫描电镜法鉴别川贝母粉掺加淀粉和米粉。结果淀粉和米粉的红外光谱一维图谱与川贝母粉末饮片极其相似,二阶导数图谱显示川贝母粉掺加淀粉和米粉后有变化,淀粉... 详细信息

目的开展川贝母粉末饮片的掺杂鉴别研究。方法采用傅里叶红外光谱法(FIR)和扫描电镜法鉴别川贝母粉掺加淀粉和米粉。结果淀粉和米粉的红外光谱一维图谱与川贝母粉末饮片极其相似,二阶导数图谱显示川贝母粉掺加淀粉和米粉后有变化,淀粉与米粉分别在1 489cm-1和669cm-1处有特征吸收峰;川贝母粉掺加淀粉和米粉的扫描电镜图谱与川贝母粉末有明显不同。结论红外光谱分析和扫描电镜可以直观、有效地鉴别川贝母粉是否掺加淀粉和米粉,为川贝母粉末饮片的质量评价提供参考。

关键词：红外光谱扫描电镜川贝母粉末饮片鉴别

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非线性振动理论在机械工程中的几个应用

力学学报 1965年第3期 159-172页

作者：季文美方同陈松淇西北工业大学

非线性振动理论早已广泛应用于无线电技术与控制工程,近年来在机械工程中也得到越来越多的应用。许多问题,例如,振动机的动力学,机械系统通过共振(或临界转速),振动系统与能源间的相互作用,非线性动力吸振,冲击消振,机床与金属切削加工... 详细信息

非线性振动理论早已广泛应用于无线电技术与控制工程,近年来在机械工程中也得到越来越多的应用。许多问题,例如,振动机的动力学,机械系统通过共振(或临界转速),振动系统与能源间的相互作用,非线性动力吸振,冲击消振,机床与金属切削加工中的自振,以及弹性体内耗对系统振动的影响,等等,都需要应用非线性振动理论来处理。下面介绍其中的几个应用。

关键词：方程组季文美联立方程吸振器振动机非线性振动理论数学理论周期状态反应曲线等于零平面滑动微分方程振子检流计颗粒介质机械工程