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Endoscopic pancreatic duct and biliary duct stenting in treatment of chronic pancreatitis with distal benign biliary stricture: a single-center experience

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Hepatobiliary & Pancreatic Diseases International 2011年第5期10卷 539-543页

作者： ming-Wei Zheng, ming-fang Qin and Wang CaiAuthor Affiliations: Department of Surgery, Tianjin Nankai Hospital, Tianjin 300100, China Department of Surgery Tianjin Nankai Hospital Tianjin 300100 China

BACKGROUND: The development of endoscopic techniques such as endoscopic retrograde cholangiopancreatography (ERCP), endoscopic sphincterotomy (EST) and stenting are relatively new alternatives to surgery for the treatment of benign lesions in the biliary duct and pancreas. The objective of this study was to assess the value of stenting in the endoscopic pancreatic duct and biliary duct in the treatment of chronic pancreatitis with distal benign biliary stricture. METHODS: Twenty-two patients diagnosed with chronic pancreatitis with distal benign biliary stricture underwent endoscopic treatment in our center, with ERCP, EST, endoscopic retrograde biliary drainage (ERBD) and endoscopic retrograde pancreatic drainage (ERPD) with stents. A numeric rating scale was used to assess pain intensity. The clinical data on endoscopic therapies and recovery of the patients were recorded and compared. RESULTS: ERCPs were successfully performed in 21 patients and 1 (4.5%) failed because of pancreatic ductal variation. A total of 68 ERCPs were performed with 47 pancreatic duct stents and 39 biliary duct stents. The rate of complications was 13.2% (9/68). The abdominal pain score after endoscopic treatment was significantly reduced. The levels of bilirubin and alanine transaminase in all 21 patients were improved compared to those before endoscopic ***: Endoscopic stent drainage of the pancreatic duct and biliary duct for chronic pancreatitis with distal biliary benign stricture can be selected as a safe, effective and minimally invasive therapeutic method.

关键词： endoscopic chronic pancreatitis distal biliary stricture plastic stent

Exact Treatment for Two Ultracold Ions in a Two-Dimensional Penning Trap

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Chinese Physics Letters 1998年第4期15卷 258-259页

作者： FENG Mang fang Xi-ming SHI Lei YAN Min ZHU Xi-wen Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsChinese Academy of SciencesWuhan 430071

The Schrödinger equation of two ultracold ions confined in xy plane of the Penning trap is exactly solved and the analytical form of the wave function of the system is obtained.A numerical calculation for a continued ... 详细信息

关键词： number Penning continued

Investigation and Application of Non-sinusoidal Oscillation Technique of Mold

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Journal of Iron and Steel Research International 2013年第12期20卷 19-24页

作者： ZHANG Xing-zhong ZHENG Xue-ran LIU Qing-guo LI Xian-kui fang Yi-ming National Engineering Research Center for Equipment and Technology of C.S.R. Yanshan University National Engineering Research Center of Continuous Casting Technology

To improve the slab quality, a kind of non-sinusoidal oscillation technique of mold driven by elliptic gears was developed. The waveform functions of non-sinusoidal oscillation were determined, and the calculation method and curves of technological parameters for non-sinusoidal oscillation were given. At the case of waveform deviation factor a equal to 0.31 and oscillation amplitude h equal to ±2.7 mm, the relationship between oscillation frequency and casting speed is determined, and the technological parameters for non-sinusoidal oscillation are calculated. The testing results of industrial application indicated that this technique could not only improve the Slab surface quality, but also reduce the steel breakout.

关键词： continuous casting mold non-sinusoidal oscillation elliptic gear waveform oscillation technology parameter

Teleportation of Two Quantum States via the Quantum Computation

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Chinese Physics Letters 2000年第3期17卷 168-170页

作者： FENG Mang ZHU Xi-Wen fang Xi-ming YAN Min SHI Lei Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsChinese Academy of SciencesWuhan 430071

A scheme of teleportation of two unknown quantum states via quantum computation is *** comparison with the former proposals shows that our scheme is more in tune with the original teleportation proposal and the effici... 详细信息

关键词： quantum scheme Quantum

In situ generated,tetrahydrosalen stabilized yttrium borohydride complex:Efficient initiator for the ring-opening polymerization of ε-caprolactone

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Chinese Chemical Letters 2009年第11期20卷 1357-1360页

作者： Jing Huang Jian fang Yu Guang ming Wu Wei Lin Sun Zhi Quan Shen Key Laboratory of Macromolecule Synthesis and Functionalization Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

In this paper, we report the preparation of a new tertrahydrosalen-stabilized yttrium complex which was employed as an initiator-precursor for the polymerization of ε-caprolactone （ε-CL） in the presence of NaBH4 to give interesting hydroxytelechelic poly（ε-caprolactone）（PCL）. The effect of [monomer]/[initiator] （[CL]/[I]）, temperature and time on the polymerization was investigated. It was found that under the condition： [CL]/[I] = 1200, 55℃, toluene： 0.5 mL, ε-CL： 0.5 mL, PCL with Mw = 32,600 and PDI = 1.47 was obtained.

关键词： Tetrahydrosalen Yttrium complex Ring-opening polymerization ε-Caprolactone

Cluster-Based Saliency-Guided Content-Aware Image Retargeting

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Journal of Electronic Science and Technology 2017年第2期15卷 141-146页

作者： Li-Wei Kang Ching-Yu Tseng Chao-Long Jheng ming-fang Weng Chao-Yung Hsu Graduate School of Engineering Science and Technology and the Department of Computer Science and Information Engineering MPI Corporation Hsinchu Changing Information Technology Inc.Hsinchu 308 Institute for Information Industry Taipei 106 automation and Instrumentation System Development Sec. China Steel CorporationKaohsiung 81233

Straightforward image resizing operators without considering image contents （e.g., uniform scaling） cannot usually produce satisfactory results, while content-aware image retargeting aims to arbitrarily change image size while preserving visually prominent features. In this paper, a cluster-based saliency-guided seam carving algorithm for content- aware image retargeting is proposed. To cope with the main drawback of the original seam carving algorithm relying on only gradient-based image importance map, we integrate a gradient-based map and a cluster-based saliency map to generate a more reliable importance map, resulting in better single image retargeting results. Experimental results have demonstrated the efficacy of the proposed algorithm.

关键词： Index Terms--Content-aware image retargeting image resizing multimedia adaptation saliency detection seam carving.

An Improved Cooperative Tracking Model Used for Large-scale Social Foraging Swarm

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自动化学报 2006年第1期32卷 38-42页

作者： CHEN Shi-ming fang Hua-Jing Department of Control Science ＆ Engineering Huazhong University of Science ＆ Technology Wuhan 430074

An improved cooperative tracking model is proposed, which is based on the local information between mutually observable individuals with global object information, and this model is used for scalable social foraging swarm. In this model, the 'follower' individuals in the swarm take the center of the minimal circumcircle decided by the neighbors in the positive visual set of individual as its local object position. We study the stability properties of cooperative tracking behavior of social foraging swarm based on Lyapunov stability theory. Simulations show that the stable cooperative tracking behavior of the global social foraging swarm can be achieved easily, and beautiful scalability emerge from the proposed model for social foraging swarm.

关键词：跟踪模型稳定性可测量性 Lyapunov理论

Sarcomatoid intrahepatic cholangiocarcinoma mimicking liver abscess: A case report

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World Journal of Clinical Cases 2020年第1期8卷 208-216页

作者： Yan Wang Jia-Lei ming Xing-Yu Ren Lu Qiu Li-Juan Zhou Shu-Dong Yang Xiang-ming fang Department of Radiology The Affiliated Wuxi People’s Hospital of Nanjing Medical UniversityWuxi 214023Jiangsu ProvinceChina Department of Pathology The Affiliated Wuxi People’s Hospital of Nanjing Medical UniversityWuxi 214023Jiangsu ProvinceChina

BACKGROUND Sarcomatoid intrahepatic cholangiocarcinoma(SICC) is an extremely rare and highly invasive malignant tumor of the liver. To our knowledge, the imaging findings of sarcomatous cholangiocarcinoma have been rarely reported; and radiological features of this tumor mimicking liver abscess have not yet been *** SUMMARY We present a case of SICC mimicking liver abscess. The patient, a 43-year-old male, complained of repeated upper right abdominal discomfort and intermittent distension over a period of one month. Radiology examination revealed a huge focal lesion in the right liver. The lesion was hypointense on computed tomography with honeycomb enhancement surrounded by enhanced peripheral areas. It showed a hypo-signal on non-contrast T1-weighted images and a hypersignal on non-contrast T2-weighted images. Radiologists diagnosed the lesion as an atypical liver abscess. The patient underwent a hepatectomy. After surgery, he survived another 2.5 mo before passing away. A search of Pub Med and Google revealed 43 non-repeated cases of SICC reported in 20 published studies. The following is a short review in order to improve the diagnostic and therapeutic skills in cases of *** This report presents the clinical and radiological features of SICC and imaging features which showed hypovascularity and progressive enhancement. SICC can present as a multilocular cyst on radiological images and it is necessary to distinguish this lesion from an atypical abscess. Simple surgical treatment is not the best treatment option for this disease.

关键词： Sarcomatoid intrahepatic cholangiocarcinoma Liver abscess Radiological features Case report

PENTAFLUOROBENZENESULFONYL BROMIDE AND ITS REACTIONS

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Chinese Chemical Letters 1991年第8期2卷 597-600页

作者： Qing Yun CHEN ming fang CHEN Shanghai Institute of Organic Chemistry Chinese Academy of SciencesShanghai 200032

Pentafluorobenzenesulfonyl bromide was synthesized by the reaction of pentafluorophenylmagnesium chloride with sulphur dioxide followed by bromine oxidation. The sulfonyl bromide reacted with polyfluorophenoxide to form polyfluorophenyl pentafluorobenzenesulfonates. Photolysis of pentafluorobenzenesulfonyl bromide gave bis(pentafluorobenzene)sulfone and decafluorodiphenyl.

关键词： THF SO PENTAFLUOROBENZENESULFONYL BROMIDE AND ITS REACTIONS Chen FSS ITS