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3432篇 您的检索式:作者名="Eberts"
    题名 作者 年代 出处 被引量
1倒立摆的双闭环模糊控制显示文摘对倒立摆采用双闭环的模糊控制方案,内环控制倒立摆的角度,外环控制倒立摆的位置,两个模糊控制器的设计都很简单,执行时间很短。在实际倒立摆装置上的实验结果验证了该方案的可行性和良好的控制性能。张乃尧 Ebert,C 1996控制与决策1996,11,1:51
2An Overview of Performance Characteristics, Experiencesand Trends of Aerospace Engine Bearings Technologies显示文摘In this paper, the operating conditions, technical requirements, performance characteristics, design ideas, application experiences and development trends of aerospace engine bearings, including material technology, integration design and reliability, are reviewed. The development history of aerospace engine bearing is recalled briefly at first. Then today’s material technologies and the high bearing performances of the bearings obtained through the new materials are introduced, which play important rolls in the aeroengine bearing developments. The integration design ideas and practices are explained to indicate its significant advantages and importance to the aerospace engine bearings. And the reliability of the shaft-bearing system is pointed out and treated as the key requirement with goals for both engine and bearing. Finally, as it is believed that the correct design comes from practice, the pre-qualification rig testing conducted by FAG Aerospace GmbH & Co. KG is briefly illustrated as an example. All these lead to the development trends of aerospace engine bearings from different aspects.Ebert Franz-Josef 2007Chinese Journal of Aeronautics2007,20,4:26
3Fundamentals of Design and Technology of Rolling Element Bearings显示文摘This article presents an overview of fundamentals of rolling element bearing designs and technologies.The aim is to outline the complex interrelation of all fundamentals with the rolling contact fatigue and the attainable bearing life.Such fundamentals include,amongst others,bearing stressing and life capability.The article shows the different types of rolling bearing stressing and the analysis of the stress distribution (principal stresses and equivalent stresses) in the material under the rolling contact area.It becomes obvious that the contamination of the bearing with foreign particles leads to a drastic reduction in bearing life.Furthermore,it demonstrates the impact of the bearing lubrication and coating as well as the effect of additives on the attainable life and wear.Further fundamentals of rolling element bearing design are the materials,the material cleanliness and the heat treatment.The article reveals the importance of the cleanliness of bearing steels as well as different types of inclusions and their effect on rolling contact fatigue.Additionally the article describes how to optimize the material properties (strength,toughness and residual stress) by the heat treatment processes.The outcome of these investigations is that endurance life of a rolling element bearing can be achieved if specific operating conditions,an adequate lubrication,good system cleanliness and specific bearing stressing are met.The article provides a guideline for bearing engineers on how designs and technologies can be applied to optimizing a bearing for a particular industry or aerospace application.Franz-Josef Ebert 2010Chinese Journal of Aeronautics2010,23,1:11
4Expression of inducible nitric oxide synthase in human gastric cancer显示文摘Jun Y Fei G Ebert MP Malfertheiner P 1999World Journal of Gastroenterology1999,5,5:5
5Magnesium显示文摘B.L Mordike T Ebert 2001Materials Science & Engineering A2001,,1:4
6Prevalence of H pylori associated 'high risk gastritis' for development of gastric cancer in patients with normal endoscopic findings显示文摘AIM: To investigate the prevalence of H pylori associated corpus-predominant gastritis (CPG) or pangastritis, severe atrophy, and intestinal metaplasia (IM) in patients without any signifi cant abnormal fi ndings during upper- GI endoscopy. METHODS: Gastric biopsies from 3548 patients were obtained during upper GI-endoscopy in a 4-year period. Two biopsies from antrum and corpus were histologically assessed according to the updated Sydney-System. Eight hundred and forty-fi ve patients (mean age 54.8 ± 2.8 years) with H pylori infection and no peptic ulcer or abnormal gross fi ndings in the stomach were identifi ed and analyzed according to gastritis phenotypes using different scoring systems. RESULTS: The prevalence of severe H pylori associated changes like pangastritis, CPG, IM, and severe atrophy increased with age, reaching a level of 20% in patients of the age group over 45 years. No differences in frequencies between genders were observed. The prevalence of IM had the highest increase, being 4-fold higher at the age of 65 years versus in individuals less than 45 years. CONCLUSION: The prevalence of gastritis featuring at risk for cancer development increases with age. These findings reinforce the necessity for the histological assessment, even in subjects with normal endoscopic appearance. The age-dependent increase in prevalence of severe histopathological changes in gastric mucosa, however, does not allow estimating the individual risk forgastric cancer development-only a proper follow-up can provide this information.Andreas Leodolter Matthias P Ebert Ulrich Peitz Kathlen Wolle Stefan Kahl Michael Vieth Peter Malfertheiner 2006World Journal of Gastroenterology2006,12,34:4
7The Effects of Increasing Plasma Concentrations of Dexmedetomidine in Humans显示文摘Thomas J. Ebert Judith E. Hall Jill A. Barney Toni D. Uhrich Maelynn D. Colinco 2000Anesthesiology2000,,2:3
8An open-label, multicentre biomarker-oriented AIO phase II trial of sunitinib for patients with chemo-refractory advanced gastric cancer显示文摘M. Moehler A. Mueller J.T. Hartmann M.P. Ebert S.E. Al-Batran P. Reimer M. Weihrauch F. Lordick T. Trarbach S. Biesterfeld M. Kabisch D. Wachtlin P.R. Galle 2011European Journal of Cancer2011,,10:3
9Targets with cone-shaped microstructures from various materials for enhanced high-intensity laser-matter interaction显示文摘Targets with microstructured front surfaces have shown great potential in improving high-intensity laser–matter interaction.We present cone-shaped microstructures made out of silicon and titanium created by ultrashort laser pulse processing with different characteristics.In addition,we illustrate a process chain based on moulding to recreate the laser-processed samples out of polydimethylsiloxane,polystyrol and copper.With all described methods,samples of large sizes can be manufactured,therefore allowing time-efficient,cost-reduced and reliable ways to fabricate large quantities of identical targets.Tina Ebert RenéHeber Torsten Abel Johannes Bieker Gabriel Schaumann and Markus Roth 2021High Power Laser Science and Engineering2021,9,2:2
10Bone tissue engineering in osteoporosis显示文摘Franz Jakob Regina Ebert Anita Ignatius Takashi Matsushita Yoshinobu Watanabe Juergen Groll Heike Walles 2013Maturitas2013,,2:2
11Anterior cruciate ligament reconstruction using a double bundle hamstring autograft configuration in patients under 30 years显示文摘BACKGROUND Anterior cruciate ligament reconstruction(ACLR)has a high incidence of re-tear in younger patients.Despite comparable functional outcomes,the incidence of retear using single and double bundle ACLR methods has not been well reported.AIM To hypothesize that double bundle hamstring ACLR has a lower graft rupture rate compared with single bundle hamstring ACLR grafts in young patients.METHODS One hundred and twelve patients<30 years of age at the time of primary double bundle ACLR were eligible for study participation.91(81.3%)could be contacted,with a mean age of 20.4 years(range 13-29)and mean post-operative follow-up time of 59 mo(range 25-107).Telephone questionnaires evaluated the incidence(and timing)of subsequent re-tear and contralateral ACL tear,further surgeries,incidence and time to return to sport,and patient satisfaction.RESULTS Of the 91 patients,there were 6(6.6%,95%CI:1.4-11.7)ACL graft re-ruptures,with a mean time to re-rupture of 28 mo(range 12-84).Fourteen patients(15.4%)experienced a contralateral ACL rupture and 14 patients(15.4%)required further surgery to their ipsilateral knee.fifty patients(54.9%)returned to pre-injury level of sport.Of those<20 years(n=45),4 patients(8.9%,95%CI:0.4-17.3)experienced a re-rupture,with mean time to re-injury 15 mo(range 12-24).Comparative analysis with existing literature and revealed a non-significant Chisquared statistic of 2.348(P=0.125).CONCLUSION A trend existed toward lower graft rupture rates in young patients undergoing double bundle ACLR utilizing a hamstring autograft,compared with rates reported after single bundle ACLR.Christopher Reece Lim Tamalee Henson Jay Ebert Peter Annear 2019World Journal of Orthopedics2019,10,12:2
12Sedative, Amnestic, and Analgesic Properties of Small-Dose Dexmedetomidine Infusions显示文摘Judith E. Hall Toni D. Uhrich Jill A. Barney Shahbaz R. Arain Thomas J. Ebert 2000Anesthesia & Analgesia2000,,3:2
13Early Neurobehavioral Outcome After Stroke Is Related to Release of Neurobiochemical Markers of Brain Damage显示文摘Michael T. Wunderlich Anne D. Ebert Torsten Kratz Michael Goertler Stefan Jost Manfred Herrmann 1999Stroke: A Journal of Cerebral Circulation1999,,6:2
14Performance of satellite rainfall estimation algorithms during TOGA COARE显示文摘Ebert E E Michael J Manton 1998J Atmos Sci1998,35,:2
15Roles for MicroRNAs in Conferring Robustness to Biological Processes显示文摘Margaret S. Ebert Phillip A. Sharp 2012Cell2012,,3:2
16miR-181a Is an Intrinsic Modulator of T Cell Sensitivity and Selection显示文摘Qi-Jing Li Jacqueline Chau Peter J.R. Ebert Giselle Sylvester Hyeyoung Min Gwen Liu Ravi Braich Muthiah Manoharan Juergen Soutschek Petra Skare Lawrence O. Klein Mark M. Davis Chang-Zheng Chen 2007Cell2007,,1:2
17Magnesium: properties-applications-potential 显示文摘Mordike B L Ebert T 2001Materials Science and Engineering2001,302,:2
18Coexpression of the c-met proto-oncogene and hepatocyte growth factor in human pancreatic cancer 显示文摘Ebert M Yokoyama M Friess H 1994Cancer Res1994,54,:1
19Regulation of the erythropoietin gene 显示文摘Ebert BL Bunn HF 1999Blood1999,94,:1
20Rendering and animation of gaseous phenomena by combining fast volume and seanline a-buffer techniques 显示文摘EBERT D S PARENT R E 1990Computer Graphics1990,94,4:1
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