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Chinese Journal of Polymer Science 2018年第3期36卷 399-405页

作者： Zong-Chun Gao cheng-peng wei Yi-Fei Han Ming Yuan Xu-Zhou Yan Feng Wang Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry Department of Polymer Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026 China Department of Chemical Engineering Stanford UniversityCalifornia 94305United States Faculty of Pharmaceutical Engineering Bengbu Medical CollegeAnhui Engineering Technology Research Center of Biochemical PharmaceuticalsBengbu 233030china

Coordination-driven self-assembly strategy has demonstrated the efficiency and versatility to construct well-ordered supramolecular coordination complexes （SCCs） such as discrete metallacycles and metallacages. In recent years, it has aroused tremendous interest to build more complexed self-assembled structures via the implementation of additional non-covalent recognition motifs on the SCCs platform. In this work, we have successfully attained this objective, with the elaborate manipulation of non-interfering pyridine-Pt2＋ and molecular tweezer/guest complexation in a hierarchical self-assembly manner. The resulting SCCs-based linear supramolecular polymers exhibit intriguing NIR-emissive behaviors, primarily attributed to the presence of intermolecular Pt（II）-Pt（II） metal-metal interactions in the non-covalent tweezering structure. Hence, supramolecular engineering of multiple non-covalent interactions offers a feasible avenue toward functional materials with tailored properties.

关键词： Supramolecular chemistry Metal-Ligand coordination Molecular tweezer Pt(II)-Pt(II) interactions Near-Infrared-Emission

Total Vertebral Body Breast Cancer Metastases: One Case Report and Literature Review

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Clinical oncology and cancer researeh 2009年第6期6卷 456-458页

作者： Tao Zhang Ling Zhang Hui Gao peng cheng Dong wei Department of Oncology PLA General Hospital of Chengdu Military Region Chengdu 610083 Sichuan Province China

IntroductionBreast cancer is one of the most commonly seen malignant tumors in the female population, and it ranks the first in the incidence of malignancies among women. The skeleton is a common metastatic site for advanced breast cancer and is where spinal metastasis is most frequently seen. The incidence rate of spinal metastasis in descending order is as follows： thoracic vertebrae, lumbar vertebrae, sacrococcygeal vertebrae and cervical vertebrae.

关键词： all vertebral body metastases breast cancer PETCT.

Primary prevention of sudden cardiac death by implantable cardioverter-defibrillator therapy in Chinese patients with heart failure： a single-center experience

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Chinese Medical Journal 2010年第7期123卷 848-851页

作者： CHEN Tai-bo cheng Kang-an GAO peng cheng Zhong-wei FAN Jing-bo JIANG Xiu-chun FANG Quan Department of Cardiology Peking Union Medical College Hospital Chinese Academy of Medical Sciences Beijing 100730China

Background An implantable cardioverter-defibrillator （ICD） has been suggested for heart failure patients for primary prevention of sudden cardiac death. However, few data have been reported on the application of ICD as primary prevention of sudden cardiac death in China. We evaluated the value of primary prevention ICD therapy in Chinese patients with heart *** Thirty-four patients at an average age of （60.2±13.7） years seen in Peking Union Medical College Hospital were treated with ICD implantation for primary prevention of sudden cardiac death from November 2005 to July 2009. Single-chamber ICDs were implanted in 16 （47.0%） cases, and dual-chamber or cardiac resynchronization therapy defibrillators in 18 （53.0%） cases. The patients had an average left ventricular ejection fraction of （26.9±5.5）% （11% to 35%）, of which 18 （53.0%） patients had ischemic cardiomyopathy and 16 （47.0%） patients had non-ischemic cardiomyopathy. All patients were followed up at three months after the implantation and every six months thereafter or when prompted by an ICD *** There were five （14.7%） deaths, including two of heart failure and three with a non-cardiac course, during an average follow-up of （15.0±11.9） months. Forty-one ICD therapy events were recorded, including 19 （46.3%） appropriate ICD therapies in six patients and 22 （53.7%） inappropriate ICD therapies in four patients with single chamber leads. Inappropriate ICD therapies were mainly due to supraventricular tachyarrhythmias, especially atrial fibrillation. Patients with ischemic cardiomyopathy and non-ischemic cardiomyopathy did not differ in the incidence of either appropriate or inappropriate *** ICD for primary prevention of sudden cardiac death in China prevents patients from arrhythmia death. Relatively high incidence of inappropriate therapies highlights the importance of an atrial lead.

关键词： implantable cardioverter-defibrillator primary prevention heart failure Chinese

SEMI-SYNTHESIS OF TRIPTONIDE

维普期刊数据库评论

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Chinese Chemical Letters 1994年第7期5卷 551-552页

作者： peng cheng MA and wei YAN(Department of Materia Medica, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical Collage. Nanjing 210042)

A *** showed and antifertil has been semi-synthesized from triptolide in 97% yield with chromic acid in one step.

关键词： SEMI-SYNTHESIS OF TRIPTONIDE

北京市地下水有机氯和有机磷农药健康风险评价

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环境科学 2018年第1期39卷 117-122页

作者：陈卫平彭程伟杨阳吴玉梅中国科学院生态环境研究中心城市与区域国家重点实验室北京100085 中国科学院大学北京100049 北京市水文总站北京100038

地下水有机氯(OCPs)和有机磷(OPPs)农药污染是水资源保护的重点问题.应用固相萃取-气相色谱-质谱联用技术测定北京市18个地下水样品内16种有机氯和6种有机磷农药的含量.北京市地下水检出7种OPCs和2种***以六氯苯、六六六和滴滴涕为主,... 详细信息

地下水有机氯(OCPs)和有机磷(OPPs)农药污染是水资源保护的重点问题.应用固相萃取-气相色谱-质谱联用技术测定北京市18个地下水样品内16种有机氯和6种有机磷农药的含量.北京市地下水检出7种OPCs和2种***以六氯苯、六六六和滴滴涕为主,峰值分别为82.4、193和158 ng·L^(-1).OPPs检出敌敌畏和乐果,峰值分别为7.1 ng·L^(-1)和17.7ng·L^(-1).OCPs和OPPs检出点位多分布于污灌区.不确定性评价显示北京市人群经饮水途径摄入OCPs和OPPs非致癌和致癌风险均在可控范围内,其中OCPs非致癌和致癌风险均较高,女性为较敏感受体.对地下水中六六六和滴滴涕的监测应引起重视.

关键词：地下水有机氯农药有机磷农药 Monte Carlo模拟

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压电陶瓷激振器定频激振能力的评价方法

东北大学学报（自然科学版） 2016年第10期37卷 1421-1425页

作者：李晖薛鹏程孙伟闻邦椿东北大学机械工程与自动化学院辽宁沈阳110819

提出了评价压电陶瓷激振信号的线性度指标,并基于自主研发的压电陶瓷激励反馈系统,对一款PZT陶瓷进行了实验研究.在分析其激振力的影响因素及影响规律的基础上,提出了压电陶瓷定频激振能力的评价方法.由实验数据建立了评价方程,得到了... 详细信息

提出了评价压电陶瓷激振信号的线性度指标,并基于自主研发的压电陶瓷激励反馈系统,对一款PZT陶瓷进行了实验研究.在分析其激振力的影响因素及影响规律的基础上,提出了压电陶瓷定频激振能力的评价方法.由实验数据建立了评价方程,得到了其定频激振的频率置信区间,使其可以更好地被应用到板壳类薄壁构件的高阶振动测试研究中.研究结果表明,压电陶瓷定频激振能力的总体特点是在低频状态下可实现高幅定频激励,而高频状态下仅能实现低幅定频激励.

关键词：压电陶瓷激振器定频激振评价方法激振能力线性度

Diagnosis and treatment of solidpseudopapillary tumors of the pancreas

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Hepatobiliary & Pancreatic Diseases International 2005年第3期4卷 456-459页

作者： Xi Chen, Guang-Wen Zhou, Hui-Jiang Zhou, cheng-Hong peng and Hong-wei Li Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Second Medical University, Shanghai 200025, China Department of Surgery Shanghai Institute of Digestive Surgery Ruijin Hospital Shanghai Second Medical University Shanghai 200025 China. cc_vrai@***

Solid-pseudopapillary tumors (SPTs) of the pancreas have been reported as rare lesions with' low malignant potential' occurring mainly in young women. This study was designed to define the clinicopathological characteristics and the effect of surgical intervention. METHODS:A retrospective clinical analysis was made of 21 patients with solid-pseudopapillary tumor of the pancreas admitted from June 1994 to December 2004. RESULTS:Abdominal pain as the major complaint was found in 13 patients, and palpable abdominal mass in 7. Imaging examination showed the abdominal mass clearly, but diagnosis was not defined. In 12 patients, tumors were located in the pancreatic head and in 9 patients, in the pancreatic tail. The average diameter of the tumor was 9.5 cm (range, 3-20 cm). One patient had liver metastasis. The diagnosis of the tumor was proved pathologically during operation in 14 patients, and other 3 patients who had been diagnosed as having insulinoma and other malignant tumors were confirmed by paraffin section and enzyme labeling after operation. Eighteen patients (85.7% ) were followed up with a median period of 24 months, 1-60 months without tumor recurrence. CONCLUSION:Huge pancreatic masses of the pancreas in young women are suggestive of solid-pseudopapillary tumors. Aggressive surgical therapy can result in good prognosis in these patients.

关键词： pancreatic neoplasms pancreaticoduodenectomy

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新疆居民消费对经济增长贡献的实证分析

数学的实践与认识 2016年第19期46卷 74-81页

作者：王鹏程晁伟鹏塔里木大学经济与管理学院新疆阿拉尔843300 华中农业大学经济管理学院湖北武汉430070

消费是经济增长的原动力,消费需求作为最终需求,在经济总量中占主导地位,对经济增长具有重要的拉动作用.运用扩展线性支出系统模型,对新疆居民需求消费结构进行了分析,在此基础上实证分析了新疆居民消费对经济增长的贡献度.实证结果表明... 详细信息

消费是经济增长的原动力,消费需求作为最终需求,在经济总量中占主导地位,对经济增长具有重要的拉动作用.运用扩展线性支出系统模型,对新疆居民需求消费结构进行了分析,在此基础上实证分析了新疆居民消费对经济增长的贡献度.实证结果表明:新疆居民消费对经济增长的贡献越来越低,且农村居民消费相对于城镇居民消费对经济的贡献作用较小.最后提出了增加居民收入、拓展消费空间、扩大居民消费和开拓农村市场等提升新疆居民消费对经济增长贡献的政策建议.

关键词：消费结构经济增长贡献度新疆

海洋分层介质中雷电电流源的水平辐射电场传播特征研究

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海洋通报 2017年第6期36卷 668-674页

作者：周筠珺成鹏伟成都信息工程大学大气科学学院高原大气与环境四川省重点实验室四川成都610225 南京信息工程大学气象灾害预报预警与评估协同创新中心江苏南京210044

随着我国海洋战略的持续推进,海上各类固定及移动的工作平台均需进行更加有效的雷电防护。海上防雷工作中深入了解雷电电流源水平辐射电场(Er),在海洋分层介质中的传播特性则是一项十分重要的工作。本文就能够对海上设施产生较大影响的... 详细信息

随着我国海洋战略的持续推进,海上各类固定及移动的工作平台均需进行更加有效的雷电防护。海上防雷工作中深入了解雷电电流源水平辐射电场(Er),在海洋分层介质中的传播特性则是一项十分重要的工作。本文就能够对海上设施产生较大影响的地闪进行研究,因此选取具有代表性的正地闪首次回击电流源(PS)及Nucci电流源(TLS),通过时域的方法对两种雷电电流源的水平辐射电场在由空气、海水及洋壳所组成的海洋分层介质中的传播特征进行对比分析。结果表明:(1)在海面及其以上的高度(h≥0 m),当距雷电电流源水平距离r=0 m时,两种雷电电流源产生的Er均为正值;其中PS产生的Er是随时间呈对数增加,而TLS的则随时间呈单峰正偏态分布;当r>0 m时,两种雷电电流源产生的Er与r=0 m时的基本呈反位相。(2)当r=0 m,h介于0~50 m及100~500 m之间,PS于雷电发生后10μs的Er值则分别介于3.273 3×10~6~1.177 1×10~7v/m及1.035 1×10~7~1.155 3×10~7v/m之间,而TLS的Er峰值则分别为9.274 7×10~5~2.887 6×10~6v/m及2.688 7×10~6~2.854 2×10~6v/m之间。(3)当h=10 m,r介于50~500 m之间,PS于10μs的Er值则介于-1.1216×104^-7.027 9 v/m之间,而TLS的Er峰值则介于-2.478 4×10~3~1.385 9 v/m之间;当h=10 m,r=1 000 m时,TLS的Er峰值为9.482 6 v/m。(4)在海面以下(h<0 m),r介于50~1 000 m之间,两种雷电电流源的Er主要为正,且随时间均呈单峰正偏态分布;当h=-5 m及-10 m时,PS与TLS的Er值于两个深度的差分别介于5~53 v/m与2~28 v/m之间。

关键词：雷电电流源 PS TLS 水平辐射电场海洋分层介质

Liver regeneration after split liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2005年第4期4卷 519-523页

作者： Hui-Xing Chen, Guang-Wen Zhou,Lu Yin,cheng-Hong peng and Hong-wei Li Shanghai, China Department of Surgery and Center of Organ Transplantation, Ruijin Hospital, Shanghai Second Medical University, Shanghai 200025,China Center of Organ Transplantation Ruijin Hospital Shanghai Second Medical University Shanghai 200025 China. huixingchen@***

BACKGROUND: The number of split liver transplantations (SLT) has increased in the last 5 years. Regeneration after the loss of hepatic tissue is a fundamental response to liver injury. Because partial-liver grafts may not be an optimal size for recipients, the purpose of this study was to investigate the regeneration of graft liver after SLT. METHODS: Four recipients have undergone SLT at our hospital since 2002. The graft liver volume (GLV) in the postoperative day ( POD) was measured by computed tomography (CT) and the serum levels of aspartate amino-transferase (AST) , alanine aminotransferase (ALT) , total bilirubin ( TB ), prealbumin ( PA ) and albumin ( ALB ) were monitored. The GLV at different postoperative times was compared to the recipient' s standard liver volume ( SLV) and the liver volume regeneration ratio ( LVRR) was calculated. In order to compare SLV in recipient 2, we measured the total liver volume including the graft and the residual native liver as the GLV. RESULTS: The GLV/SLV at POD120 and POD360 of recipient 1 was measured 114% (1159.32 cm3 71016.95 cm3) , 97% (986.44 cm371016.95 cm3 ) with the LVRR being -11.0%, -24.3%, respectively. For recipient 2, it was measured 96% (927.32 cm3 7965.96 cm3) and 100% (968. 98 cm37965. 96 cm3 ) , with the LVRR being 24. 4% , 30. 0% , respectively. The initial graft volume of segment Ⅱ ,Ⅲ was 265.36 cm3 and increased to 335.24 cm3 and 360.56 cm3 at POD120 and POD360, respectively, with the LVRR being 26.3% and 35.9%, respectively. The GLV/SLV at POD60 of recipient 3 was 86% (893. 04 cm3/ 1038. 42 cm3 ) and the LVRR was 12. 0%. For recipient 4, it was 90% (567. 48 cm3/630. 54 cm3 ) whereas the LVRR was 20. 0%. The serum levels of ALT, AST and TB in all recipients declined gradually and returned to normal while the serum levels of PA and ALB increased to normal. The serum levels of ALT and AST peaked within 3 days after SLT. The neurological symptoms of Wilson 's disease in recipient 2 were improved markedly

关键词： liver transplantation liver regeneration computed tomography