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Projectile Fragmentation in ^(20)Ne-^(165)Ho Reaction at 45 MeV/u

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Chinese journal of nuclear physics 1995年第3期17卷 228-233页

作者： G.X.Dai J.B.Natowitz R.Wada k.hagel Q.Z.Luo Z.Y.He J.Blackadar S.Lee J.T.Li Y.N.Lou D.Utley B.Xiao Institute of Modern Physics Chinese Academy of SciencesP.O.Box 31Lanzhou 7300002 Cylotron Institute and Physics DepartmentTexas A & M UniversityCollege StationTexas 77843 Cylotron Institute and Physics Department Texas A & M UniversityCollege StationTexas 77843 Institute of Modern Physics Chinese Academy of SciencesP.O.Box 31Lanzhou 7300002

At 45 MeV/u an experiment on fragmentation of projectile(20Ne)on 165Ho was *** average reduced width σ0 of 84.3±6.6 MeV/c was obtained by separating the break=up of all com-plex fragments of 20Ne from the evaporatio... 详细信息

关键词： Projectile fragmentation Reduced width of Fermi momentum 20Ne+165Ho reaction

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用次级束流对硅望远镜的时间和能量定标

核技术 1993年第12期16卷 705-709页

作者：贺智勇 Steckmeyer JC kerambrun A Angelique JC Bizard G Brou R Cussol D Patry JP Peter J Regimbart R Tamain B Vient E Cabot C Auger G Crema E Peghaire A Saint-Laurent F Gonin M hagel k Wada R Eudes P Lebrun C Rosato E Masri Y El 中国科学院近代物理研究所 LPC Caen ISMRAIN2P3-CNRSF-14050 CaenFrance GANIL BP5027F-14021 CaenFrance Cyclotron Institute Texas A and M UniversityCollege StationTX77843USA LPN Universite de Names44072 Nantes Cedex 03France Dipartimento di Scienze Fisiche Universita di NapoliI-80125 NaplesItaly ULB BruxellesBelgium

利用95MeV/u的^(16)O束产生的次级束流对半导体硅探测器进行了时间和能量定标。实验结果表明,由于次级束流提供的次级粒子种类多,飞行距离长,因此,能给探测器带来非常精确的定标。

关键词：时间定标能量定标探测器定标

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非对称核物质相变同位旋依赖性

非对称核物质相变同位旋依赖性

Reaction Plane Determination for ^(64)Zn+^(27)Al Collisions at Intermediate Energy

二〇〇九全国核反应会暨生物物理与核物理交叉前沿研讨会

作者：陈志强 R.Wada T.keutgen k.hagel 王建松 L.May M.Codrington 秦礼军 J.B Natowitz T.Materna S.kowalski P.k.Sahu A.Bonasera 黄美容中国科学院近代物理研究所

在有限温度和低密情况下,核物质会发生液汽相变,当密度和压强是共轭变量时,温度是一个控制参量。利用Fisher模型和朗道理论,我们从实验上找到了一个描述非对称核物质相变的新的序参量。中子和质子的不同混合比例作为序参量,对

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Chinese journal of nuclear physics 1994年第3期 207-210页

作者： A.Buta J.C.Angelique G.Bizard R.Brou D.Cussol A.kerambrun J.P.Patry J.Peter R.POpescu R.Regimbart J.C.Steckmeyer B.Tamain E.Vient G.Auger C.Cabot E.Crema A.Peghaire F.Saint-Laurent M.Gonin k.hagel R.Wada P.Eudes C.Lebrun E.Rosato Y.El Masri LPC Caen ISMRAIN2P3-CNRSF-14050 CaenFrance IFAHeavy Ion DepartmentBucharestRomania. LPC Caen ISMRAIN2P3-CNRSF-14050 CaenFrance GANIL BP5027F-14021 CaenFrance Cyclotron Institute Texas A & M UniversityCollege StationTX77843USA LPN Universite de Nantes44072 Nantes Cedex 03France Dipartimento di Scienze Fisiche Universita di Napoli1-80125 NaplesItaly UCL Louvain-la-NeuveBelgium

The collective flow for 64Zn+27Al system is measured at intermediate energyby using a 4π multidetector array in conjunction with an array of Si *** have been sorted versus the impact parameter by means of global *** methods of reaction plane determination are compared:sphericity tensor method,transverse momentum analysis,and azimuthal correlation *** this system,thetransverse momentum analysis method is the best one.

关键词： Collective flow Reaction plane Transverse momentum analysis Azimuthal correlation

One and Two Photon Excitation of Radiofrequency Trapped Ca

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Chinese Journal of Chemical Physics 2009年第2期22卷 119-122页

作者： C. Zumsteg C. Champenois D. Guyomarc'h G. hagel M. Houssin M. knoop Physique des Interactions Ioniques et Moléculaires (CNRS UMR 6633) Université de Provence Centre de Saint Jérome Case C21 13397 Marseille Cedex 20 France

Radiofrequency （rf） trapped ions are versatile candidates for a large panel of applications ranging from quantum information to the creation of cold molecules. Sample size can range from a single to 10^6 ions, and the internal and external energy states of the atoms can be controlled with high precision. In the experiment, we focus on different protocols related to frequency metrology using rf trapped Ca.

关键词： Radiofrequency trapped ion Frequency metrology Laser stabilisation

中能区64Zn+27Al反应中集体流的实验研究

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中能区64Zn+27Al反应中集体流的实验研究

Jejunitis and brown bowel syndrome with multifocal carcinogenesis of the small bowel

第九届全国核物理大会

作者：贺智勇 J.Peter J.C.Angelique A.Auger G.Bizard R.Brou A.Buta C.Cabot E.Crema D.Cussol Y.El Masri Ph.Eudes M.Gonin k.hagel A.kerambrum C.Lebrun A.Peghaire R.Popescu R.Regimbart E.Rosato F.Saint-Laurent J.C,Steckmeyer B.Tamain E.Vient R.Wada 中国科学院近代物理研究所 LPC Caen ISMRAIN2P3—CNRS14050 CAEN CEDEXFRANCE GANIL BP5027 14021 CAEN CEDEXFRANCE Institut de Physique Nuclear UCL1348 Louvain—La—NeuveBELGIUM LPN Universite de Nantes44072 NANTES CEDEXFRANCE Cyclotron Institut Texas A&M UniversityCollege StationTX77843USA

核物质集体流的研究是重离子碰撞中很重要的一个研究课题,通过它可以探讨核物质状态方程．压缩效应和重离子碰撞动力学等．最近,我们在中能区观察到了集体流及其消失,买验是在法国 GANIL 加速器上进行的,用49,57,69和79 MeV/u 的“Zn ...

核物质集体流的研究是重离子碰撞中很重要的一个研究课题,通过它可以探讨核物质状态方程．压缩效应和重离子碰撞动力学等．最近,我们在中能区观察到了集体流及其消失,买验是在法国 GANIL 加速器上进行的,用49,57,69和79 MeV/u 的“Zn 束轰击Al 靶．前角3°至30°间粒子的探测由96块塑料闪烁体片组成的塑闪墙完成,塑闪墙分七环,靶距210cm．中后角30°至150°间

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World Journal of Gastroenterology 2015年第36期21卷 10461-10467页

作者： Martin Raithel Tilman T Rau Alexander F hagel Heinz Albrecht Thomas de Rossi Thomas kirchner Eckhart G Hahn Department of Medicine 1 Friedrich-Alexander-University Erlangen-Nuremberg Department of Pathology Friedrich-Alexander University Erlangen-Nuremberg Department of Pathology Ludwig-Maximilians-University Munich

This is the first report describing a case where prolonged,severe malabsorption from brown bowel syndrome progressed to multifocally spread small bowel adenocarcinoma. This case involves a female patient who was initially diagnosed with chronic jejunitis associated with primary diffuse lymphangiectasia at the age of 26 years. The course of the disease was clinically,endoscopically,and histologically followed for 21 years until her death at the age 47 due to multifocal,metastasizing adenocarcinoma of the small bowel. Multiple lipofuscin deposits(so-called brown bowel syndrome) and severe jejunitis were observed microscopically,and sections of the small bowel showed dense lymphoplasmacytic infiltration of the lamina propria as well as blocked lymphatic vessels. After several decades,multifocal nests of adenocarcinoma cells and extensive,flat,neoplastic mucosal proliferations were found only in the small bowel,along with a loss of the mismatch repair protein MLH1 as a long-term consequence of chronic jejunitis with malabsorption. No evidence was found for hereditary nonpolyposis colon carcinoma syndrome. This article demonstrates for the first time multifocal carcinogenesis in the small bowel in a malabsorption syndrome in an enteritis-dysplasia-carcinoma sequence.

关键词： Brown bowel syndrome Carcinogenesis of the small b

Conventional endoscopic retrograde cholangiopancreaticography vs the Olympus V-scope system

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World Journal of Gastroenterology 2013年第12期19卷 1936-1942页

作者： Martin Raithel Andreas Ngel Jürgen Maiss Dane Wildner Alexander Fritzkarl hagel Sandra Braun Hiwot Diebel Eckhart Georg Hahn Department of Medicine 1 GastroenterologyEndoscopy University Erlangen-Nuremberg

AIM: To compare the new Olympus V-scope (VS) to conventional endoscopic retrograde cholangiopancreati-cography (ERCP). METHODS: Forty-nine patients with previous endoscopic papillotomy who were admitted for interventional ERCP for one of several reasons were included in this single-centre, prospective randomized study. Consecutive patients were randomized to either the VS group or to the conventional ERCP group. ERCP-nave patients who had not undergone papillotomy were excluded. The main study parameters were interventional examination time, X-ray time and dose, and premedication dose (all given below as the median, range) and were investigated in addition to each patient's clinical outcome and complications. Subjective scores to assess each procedure were also provided by the physicians and endoscopy assistants who carried out the procedures. A statistical analysis was carried out using the Wilcoxon rank-sum ***: Twenty-five patients with 50 interventions were examined with the VS ERCP technique, and 24 patients with 47 interventions were examined using the conventional ERCP technique. There were no significant differences between the two groups regarding the age, sex, indications, degree of ERCP difficulty, or interventions performed. The main study parameters in the VS group showed a nonsignificant trend towards a shorter interventional examination time (29 min, 5-50 min vs 31 min, 7-90 min, P = 0.28), shorter X-ray time (5.8 min, 0.6-14.1 min vs 6.1 min, 1.6-18.8 min, P = 0.48), and lower X-ray dose (1351 cGy/m2 , 159-5039 cGy/m2 vs 1296 cGy/m2 , 202.2-6421 cGy/m 2 , P = 0.34). A nonsignificant trend towards fewer adverse events occurred in the VS group as compared with the conventional ERCP group (cholangitis: 12% vs 16%, P = 0.12; pain: 4% vs 12.5%, P = 0.33; post-ERCP pancreatitis: 4% vs 12.5%, P = 0.14). In addition, there were no statistically significant differences in assessment by the physicians and endoscopy assistants using subjective questio

关键词： Endoscopic retrograde cholangiopancre-aticography Short guidewire endoscopic retrograde cholangiopancreaticography system X-ray protection V-scope Bile duct stenosis

改进的模型预测控制在分布式卫星姿态控制上的应用(英文)

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中国科学技术大学学报 2012年第7期42卷 556-564页

作者：白雪亮 hagel Philipp 吴晓峰肖思泽悉尼大学航天机械与机电学院

分布式卫星的姿态控制主要困难是姿态控制模块需要通过卫星间的无线控制模块(ISL)来实现.这种脆弱的ISL导致大量的数据丢失,字节错误和较长的时间延时,从而使传统的线性实时控制算法无法胜任.本文提出了一种带有观测器的可约束模型预测... 详细信息

分布式卫星的姿态控制主要困难是姿态控制模块需要通过卫星间的无线控制模块(ISL)来实现.这种脆弱的ISL导致大量的数据丢失,字节错误和较长的时间延时,从而使传统的线性实时控制算法无法胜任.本文提出了一种带有观测器的可约束模型预测控制,并提供了与传统PD控制的仿真实验比较.仿真结果验证了该算法在分布式卫星姿态控制上的应用上的优越性.

关键词：分布式卫星模型预测控制卫星姿态建模姿态控制