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32篇 您的检索式:作者名="OTT Peter"
    题名 作者 年代 出处 被引量
1基于单幅灰度图像的快速三维重建方法研究显示文摘对含有阴影的物体表面快速三维重建问题,提出一种融合阴影恢复形状(Shape from shading,SFS)数据与旋转对称激光三角传感器数据的基于单幅灰度图像的快速智能测量方法。针对SFS方法重建过程中出现的二义性问题,利用旋转对称激光三角传感器的关键数据对其进行修正。同时针对旋转对称激光三角传感器对未知物体表面需要逐点测量,测量速度慢的问题,利用修正后的SFS重建结果对旋转对称激光三角传感器进行智能视觉引导,对含有阴影的物体表面梯度变化较大的点及特征点进行精确测量。在此基础上搭建集成SFS方法的激光三角传感器高精度移动测量平台系统。该系统根据物体表面梯度变化的特点自动选取阈值调节测量精度,从而快速、精确地完成对未知物体表面的三维重建。并通过试验验证了方法的可行性和有效性。高欣健 张旭东 高亚捷 OTT Peter 2014机械工程学报2014,50,2:19
2Vitamin D deficiency in cirrhosis relates to liver dysfunction rather than aetiology显示文摘AIM: To examine the vitamin D status in patients with alcoholic cirrhosis compared to those with primary biliary cirrhosis. METHODS: Our retrospective case series comprised 89 patients with alcoholic cirrhosis and 34 patients with primary biliary cirrhosis who visited our outpatient clinic in 2005 and underwent a serum vitamin D status assessment. RESULTS: Among the patients with alcoholic cirrhosis, 85% had serum vitamin D levels below 50 nmol/L and 55% had levels below 25 nmol/L, as compared to 60% and 16% of the patients with primary biliary cirrhosis, respectively (P < 0.001). In both groups, serum vitamin D levels decreased with increasing liver disease severity, as determined by the Child-Pugh score. CONCLUSION: Vitamin D deficiency in cirrhosis relates to liver dysfunction rather than aetiology, with lower levels of vitamin D in alcoholic cirrhosis than in primary biliary cirrhosis.Mikkel Malham SΦren Peter JΦrgensen Peter Ott JΦrgen Agnholt Hendrik Vilstrup Mette Borre Jens F Dahlerup 2011World Journal of Gastroenterology2011,17,7:15
3New tight junction protein 2 variant causing progressive familial intrahepatic cholestasis type 4 in adults: A case report显示文摘BACKGROUND Progressive familial intrahepatic cholestasis(PFIC)encompasses a group of autosomal recessive disorders with high morbidity and mortality.Variants in the gene encoding tight junction protein-2(TJP2)have been linked to PFIC type 4(PFIC4),which predominantly presents in childhood.However,there are only limited data from adults with TJP2-related PFIC4.We report a family with an autosomal recessive disorder with a novel variant in the TJP2 gene in adults with very variable expression of PFIC4.CASE SUMMARY The index patient presented at 19 years old with liver cirrhosis and variceal bleeding and was treated with endoscopic banding and beta-blockers.In 2018,he developed primary liver cancer that was treated with radiofrequency ablation followed by liver transplantation in 2019.Genetic testing revealed a novel homozygous TJP2 variant causing PFIC4(TJP2([NM_004817.3]:c.[3334C>T];[3334C>T])).The consanguineous family consists of the father and mother(both heterozygous)and their 12 children,of which five carry the variant in a homozygous state;however,these five siblings have highly variable expression of PFIC4.Two homozygous brothers had cirrhosis and portal hypertension at diagnosis at the ages of 19 and 36.Two other homozygous brothers,age 23 and 19,and the homozygous sister,age 21,have elevated liver enzymes but presently no cirrhosis,which may suggest an age-dependent penetrance.In addition,five sisters had severe and mild intrahepatic cholestasis of pregnancy and carry the TJP2 variant in a homozygous and heterozygous state,respectively.CONCLUSION This novel TJP2 variant is associated with PFIC4 causing severe liver disease with cirrhosis and primary liver cancer in adolescents/adults.Chun-Shan Wei Naja Becher Jenny Blechingberg Friis Peter Ott Ida Vogel Henning Grønbæk 2020World Journal of Gastroenterology2020,26,5:6
4用于旋转对称三角传感器的一种鲁棒的处理方法(英文)显示文摘旋转对称三角传感器由于其光学系统的旋转对称性而比其他的传统激光三角传感器具有更好的柔性,将旋转对称三角传感器应用于工业领域,相应的处理方法的性能是至关重要的。为了使传感器在复杂物体表面情况下仍具有较好的性能,我们设计了一种用于旋转对称三角传感器的鲁棒的处理方法。首先,分析旋转对称三角传感器图像的特性,这些特性取决于被测物体的表面特性,而这些图像特性将有助于传感器图像的处理方法的设计。其次,用一种由粗到精检测方法实现对传感器图像的处理。提出在精检测中,一种结合了自适应平滑和峰值法的方法,以实现检测的鲁棒性。在实际传感器图像上的实验结果证明,这种处理方法对于来自复杂表面的传感器图像具有很好的鲁棒性,从而提高了传感器的柔性。王晓嘉 高隽 王磊 张旭东 Eckstein Johannes Ott Peter 2007仪器仪表学报2007,28,2:6
5Fundamental Uncertainty Rotationally Symmetric and Anamorphic Laser Triangulation显示文摘WANG Lei GAO Jun WANG Xiaojia Johannes Eckstein Peter Ott 2008Chinese Journal of Electronics2008,17,1:4
6Eccentric error and compensation in rotationally symmetric laser triangulation显示文摘Rotationally symmetric triangulation(RST)sensor has more flexibility and less uncertainty limits because of the abaxial rotationally symmetric optical system.But if the incident laser is eccentric,the symmetry of the image will descend,and it will result in the eccentric error especially when some part of the imaged ring is blocked.The model of rotationally symmetric triangulation that meets the Schimpflug condition is presented in this paper.The error from eccentric incident laser is analysed.It is pointed out that the eccentric error is composed of two parts,one is a cosine in circumference and proportional to the eccentric departure factor,and the other is a much smaller quadric factor of the departure.When the ring is complete,the first error factor is zero because it is integrated in whole ring, but if some part of the ring is blocked,the first factor will be the main error.Simulation verifies the result of the a- nalysis.At last,a compensation method to the error when some part of the ring is lost is presented based on neural network.The results of experiment show that the compensation will make the absolute maximum error descend to half,and the standard deviation of error descends to 1/3.Wang Lei Gao Jun Wang Xiaojia Johannes Eckstein Peter Ott 2007仪器仪表学报2007,28,9:4
7Normalised intrinsic mortality risk in liver transplantation: European Liver Transplant Registry study显示文摘René Adam Valérie Cailliez Pietro Majno Vincent Karam Paul McMaster Roy Y Calne John O’Grady Rudolf Pichlmayr Peter Neuhaus Jean-Bernard Otte Krister Hoeckerstedt Henri Bismuth 2000The Lancet . 2000 (9230)2000,,9230:3
8Heat Transfer and Performance Characteristics of Axial Cooling Fans with Downstream Guide Vanes显示文摘This study examines experimentally the effect of stators on the performance and heat transfer characteristics of small axial cooling fans. A single fan impeller, followed by nine stator blades in the case of a complete stage, was used for all the experimental configurations. Performance measurements were carried out in a constant speed stage performance test rig while the transient liquid crystal technique was used for the heat transfer measurements. Full surface heat transfer coefficient distributions were obtained by recording the temperature history of liquid crystals on a target plate. The experimental data indicated that the results are highly affected by the flow conditions at the fan outlet. Stators can be beneficial in terms of pressure drop and efficiency, and thus more economical operation, as well as, in the local heat transfer distribution at the wake of the stator blades if the fan is installed very close to the cooling object. However, as the separation distance increases, enhanced heat transfer rate in the order of 25% is observed in the case of the fan impeller.Alexandros Terzis Ioannis Stylianou Anestis I. Kalfas Peter Ott 2012Journal of Thermal Science2012,21,2:2
9Randomized study of intracorporeal laser lithotripsy versus extracorporeal shock-wave lithotripsy for difficult bile duct stones显示文摘Horst Neuhaus Christian Zillinger Peter Born Roland Ott Hans Allescher Thomas R?sch Meinhard Classen 1998Gastrointestinal Endoscopy1998,,5:1
10Dynamic chromatin modifications characterise the first cell cycle in mouse embryos显示文摘SANTOS F PETERS A H OTTE A P 2005Developmental Biology2005,280,1:1
11Cerebral microdialysis in patients with fulminant hepatic failure显示文摘Flemming Tofteng Linda Jorgensen Bent Adel Hansen Peter Ott Jens Kondrup Fin Stolze Larsen 2002Hepatology2002,,6:1
12Brain glucose utilization in systemic lupus erythematosus with neuropsychiatric symptoms a controlled positron emission tomography study显示文摘Otte A Weiner SM Peter HH 1997Eur J Nucl Med1997,24,7:1
13Blood–brain barrier permeability to ammonia in liver failure: a critical reappraisal显示文摘Peter Ott Fin Stolze Larsen 2003Neurochemistry International2003,,4:1
14Imaging with tilted surfaces:An efficient matrix method for the generalized Scheimpflug condition and its application to rotationally symmetric triangulation显示文摘Ott Peter 2005Journal of the Optical Society of America A:Optics and Image Science and Vision2005,22,9:1
15miR-181a promotes osteoblastic differentiation through repression of TGF-β signaling molecules显示文摘Raghu Bhushan Johannes Grünhagen Jessica Becker Peter N. Robinson Claus-Eric Ott Petra Knaus 2012International Journal of Biochemistry and Cell Biology2012,,:1
16Ex- periraental and Numerical Investigation of Narrow Im- pingement Cooling Channels 显示文摘Stefan Fechte Alexandros Terzis Peter Ott 2013International Journal of Heat and Mass Transfer2013,,67:1
17Metabolic fate of isoleucine in a rat model of hepatic encephalopathy and in cultured neural cells exposed to ammonia显示文摘Lasse K. Bak Peter Iversen Michael S?rensen Susanne Keiding Hendrik Vilstrup Peter Ott Helle S. Waagepetersen Arne Schousboe 2009Metabolic Brain Disease2009,,1:1
18Establishment of histone H3 methylation on the' inactive X chromosome requires transient recruitment of Eed-Enxl polycomb group complexes显示文摘Silva J Mak W Zvetkova I Appanah R Nesterova T B Webster Z Peters A H Jenuwein T Otte A P Brockdorff N 2003Dev Cell2003,4,:1
19Transcriptome of silicon-induced resistance against Ralstonia solanacearum in the silicon non-accumulator tomato implicates priming effect显示文摘Hassan Ghareeb Zoltán Bozsó Peter G. Ott Cornelia Repenning Frank Stahl Kerstin Wydra 2010Physiological and Molecular Plant Pathology2010,,3:1
20Hepatocyte Transplantation in an Acute Liver Failure Due to Mushroom Poisoning显示文摘Andrea Schneider Masoumeh Attaran Peter N. Meier Christian Strassburg Michael P. Manns Michael Ott Marc Barthold Lubomir Arseniev Thomas Becker Bernd Panning 2006Transplantation2006,,8:1
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