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    题名 作者 年代 出处 被引量
1MODELING OF CONTROLLED THERMO-MECHANICAL PROCESSING OF TUBES FOR ENHANCED MANUFACTURING AND PERFORMANCE显示文摘An integrated mathematical model to simulate seamless tube rolling processes has been developed at The Timken Company. The model is capable of simulating the thermal, deformation and microstructure evolution in the piercing, elongating and reducing/sizing and the austenite decomposition in the mill annealing and cooling operations. Finite difference schemes are employed to model cooling, reducing/sizing and stretch reducing, and finite-element schemes are employed to simulate piercing and elongating. The model predicts the thermal history, deformation, rolling load, torque, recrystallization and grain growth in hot tube rolling, austenite decomposition in cooling or annealing, and the final structure-properties. In this paper mathematical models which are employed to describe the thermal, deformation and microstructure evolution along with the modeling results are presented. The developed 'tube rolling mill in the computer' provides a powerful tool for engineers for product and process development, process control, process optimization and quality control.D. Jin E. D. Dominik R. V. Kolarik II J. E. Ives and E. B. Damm (The Timken Company, 1835 Dueber Avenue, S.W., Canton, Ohio 44706-0932, U.S.A.) 2000Acta Metallurgica Sinica(English Letters)2000,13,2:5
2MRI versus 64-row MDCT for diagnosis of hepatocellular carcinoma显示文摘AIM:To compare the diagnostic capability of multidetector computed tomography(MDCT) and magnetic resonance imaging(MRI) for the detection of hepatocellular carcinoma(HCC) tumour nodules and their effect on patient management.METHODS:A total of 28 patients(25 male,3 female,mean age 67±10.8 years) with biopsy-proven HCC were investigated with 64-row MDCT(slice 3 mm native,arterial and portal-venous phase,120 mL Iomeprol,4 mL/s,delay by bolus trigger) and MRI(T1fs fl2d TE/ TR 2.72/129 ms,T2tse TE/TR 102/4000 ms,5-phase dynamic contrast-enhanced T1fs fl3d TE/TR 1.56/4.6,Gadolinium-DTPA,slice 4 mm).Consensus reading of both modalities was used as reference.Tumour nodules were analyzed with respect to number,size,and location.RESULTS:In total,162 tumour nodules were detected by consensus reading.MRI detected signifi cantly more tumour nodules(159 vs 123,P<0.001) compared to MDCT,with the best sensitivity for early arterial phase MRI.False-negative CT findings included nodules ≤5 mm(n=5),≤10 mm(n=17),≤15 mm(n=12),≤20 mm(n=4),and 1 nodule >20 mm.MRI missed 2 nodules ≤10 mm and 1 nodule ≤15 mm.On MRI,nodule diameters were greater than on CT(29.2±25.1 mm,range 5-140 mm vs 24.1±22.7 mm,range 4-129 mm,P<0.005).In 2 patients,MDCT showed only unilobar tumour spread,whereas MRI revealed additional nodules in the contralateral lobe.Detection of these nodules could have changed the therapeutic strategy.CONCLUSION:Contrast-enhanced MRI is superior to 64-row MDCT for the detection of HCC nodules.Patients should be allocated to interventional or operative treatment according to a dedicated MRI-protocol.Michael Bernhard Pitton Roman Kloeckner Sascha Herber Gerd Otto Karl Friedrich Kreitner Christoph Dueber 2009World Journal of Gastroenterology2009,15,48:5
3Immunohistochemical analysis of the Wnt/β-catenin signaling pathway in pancreatic neuroendocrine neoplasms显示文摘AIM: To investigate the role of the Wnt/β-catenin pathway in pancreatic neuroendocrine neoplasms(PanN ENs). METHODS: Tissue microarrays containing 88 PanN ENs were immunohistochemically labeled with antibodies to β-catenin, E-cadherin, adenomatous polyposis coli(APC), chromogranin and synaptophysin. One case had only metastatic tumors resected, whereas others(n = 87) received pancreatectomy with or without partial hepatectomy. Pathology slides, demographic, clinicopathologic, and follow up data were reviewed. Patients' demographics, clinicopathologic features, and immunohistochemical results from 87 primary tumors were compared between patients with low stage(stage Ⅰ/Ⅱ) and high stage(stage Ⅲ/Ⅳ) tumors. In addition, correlation of immunohistochemical results from primary tumors with disease-specific survival(DSS) was evaluated. RESULTS: Strong membranous β-catenin staining in the primary tumor was observed in all 13 stage Ⅲ/Ⅳ Pan NENs as compared to 47%(35/74) of stage Ⅰ/Ⅱtumors(P < 0.01). However, the strong membranous β-catenin staining was unassociated with tumor grade or DSS. Decreased membranous β-catenin staining was associated with decreased membranous E-cadherin labeling. Nuclear β-catenin staining was seen in 15%(2/13) of stage Ⅲ/Ⅳ Pan NENs as compared to 0%(0/74) of stage Ⅰ/Ⅱ tumors(P = 0.02). The case with metastasectomy only also showed nuclear β-catenin staining. Two of the three cases with nuclear β-catenin staining were familial adenomatous polyposis(FAP) patients. Lack of APC expression was seen in 70%(57/81) of the cases, including the 3 cases with nuclear β-catenin staining. Expression of E-cadherin and APC in primary tumor was not correlated with tumor grade, tumor stage, or disease specific survival. CONCLUSION: The Wnt/β-catenin pathway was altered in some PanN ENs, but did not Impact DSS. PanN ENs in FAP patients demonstrated nuclear β-catenin accumulation and loss of APC.Vivian Weiss Julie Dueber Jesse P Wright Justin Cates Frank Revetta Alexander A Parikh Nipun B Merchant Chanjuan Shi 2016World Journal of Gastrointestinal Oncology2016,8,8:3
4Endovascular treatment of acute bleeding compil cations in traumatic aorticrupture and aortobronchial fistula显示文摘Dorweiler B Dueber C Neufang A 2001Eur J Cardiothorac Surg2001,19,6:1
5Endovascular treatment of acute bleeding complications in traumatic aortic rupture and aortobronchial fistula显示文摘Doweiler B Dueber C Neufang A 2001Eur J Cardiothoracic Surg2001,19,6:1
6Midterm follow-up after DC-BEAD?-TACE of Hepatocellular Carcinoma (HCC)显示文摘Marijke Skowasch Jens Schneider Gerd Otto Arndt Weinmann Markus Alexander Woerns Christoph Dueber Michael Bernhard Pitton 2012European Journal of Radiology2012,,12:1
7Subcutaneous implantation metastasis of a cholangiocarcinoma of the bile duct after percutaneous transhepatic biliary drainage (PTBD)显示文摘R. Loew C. Dueber A. Schwarting M. Thelen 1997European Radiology1997,,2:1
8BglBricks: a flexible standard for biological part assembly显示文摘Anderson JC Dueber JE Leguia M 2014Journal of Biological Chemistry2014,4,1:1
9Preparation of vinyl triflu-oromethanesulfonates:3-methyl-2-buten-2-yl triflate显示文摘STANG P J DUEBER T E 0,,:1
10The pathogen protein EspF(U) hijacks actin polymerization using mimicry and multivalency显示文摘Sallee NA Rivera GM Dueber JE 2008Nature2008,454,7207:1
11Percutaneous Treatment of Hepatocellular Carcinoma in Patients with Transjugular Intrahepatic Portosystemic Shunts显示文摘I. Kaare Tesdal Mats Wikstr?m Christa Flechtenmacher Thomas Filser Christoph Dueber 2006CardioVascular and Interventional Radiology2006,,5:1
12The pathogen protein EspF (U) hijacks actin polymerization using mimicry and multivalency 显示文摘Sallee NA Rivera GM Dueber JE 2008Nature2008,454,7207:1
13Antagonists induce a conformational change in clAP1 that promotesautoubiquitination显示文摘DUEBER EC SCHOEFFLER AJ LINGEL A 2011Science2011,334,6054:1
14MDCT Versus MRI Assessment of Tumor Response After Transarterial Chemoembolization for the Treatment of Hepatocellular Carcinoma显示文摘Roman Kloeckner Gerd Otto Stefan Biesterfeld Katja Oberholzer Christoph Dueber Michael B. Pitton 2010CardioVascular and Interventional Radiology2010,,3:1
15Subcutaneous implantation metastasis of a cholangiocarcinoma of the bile duct after percutaneous transhepatic biliary drainage(PTBD) 显示文摘R Loew CH Dueber A Schwarting 1997Eur Radiol1997,7,:1
16Endovaskulaere therapie aortaler aneurysmen: erste klinische Ergebnisse 显示文摘Dueber VC Schmiedt W Pitton M 1996Fortschr Roentgenstr1996,164,3:1
17MDCT assessment of airway wall thickness in COPD patients using a new method: correlations with pulmonary function tests显示文摘Tobias Achenbach Oliver Weinheimer Alexander Biedermann Sabine Schmitt Daniela Freudenstein Edula Goutham Richard Peter Kunz Roland Buhl Christoph Dueber Claus Peter Heussel 2008European Radiology2008,,12:1
18Synthetic protein scaffolds provide modular control over metabolic flux 显示文摘Dueber J E Wu G C Malmirchegini G R Moon T S Petzold C J Ullal A V Prather K L J Keasling J D 2009Nature Biotechnology2009,27,8:1
19Synthetic protein scaffolds provide modular control over metabolic flux显示文摘John E Dueber Gabriel C Wu G Reza Malmirchegini 0,,:1
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