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| 1 | 基于DRNN神经网络的PD混合控制技术在船舶动力定位系统中的应用显示文摘船舶在海上运动是一种复杂的非线性运动,其水动力系数很难精确确定,而海洋环境的随机干扰因素也在不断地发生变化,因此需要研究具有鲁棒性和自适应能力的船舶动力定位控制技术。P ID控制在优化参数的条件下,对于能够建立精确数学模型的确定性系统具有鲁棒性好和可靠性高的特点,但对于船舶运动这样复杂的非线性系统其控制效果不理想,而神经网络具有自学习和自适应能力,因此需要结合两者的特点,设计自适应能力强、鲁棒性好的控制技术。本文研究了基于DRNN神经网络的PD混合控制技术,并将其应用到船舶动力定位系统。仿真结果表明该方法有效,且具有较好的鲁棒性和自适应能力,提高了动力定位系统的精度和性能。 | 夏国清 Corbett Dan R | 2006 | 中国造船2006,47,1: | 10 |
| 2 | Micro/nano Indentation and Single Grit Diamond Grinding Mechanism on Ultra Pure Fused Silica显示文摘The existing research about ductile grinding of fused silica glass was mainly focused on how to carry out ductile regime material removal for generating very 'smoothed' surface and investigate the machining-induced damage in the grinding in order to reduce or eliminate the subsurface damage.The brittle/ductile transition behavior of optical glass materials and the wear of diamond wheel are the most important factors for ductile grinding of optical glass.In this paper,the critical brittle/ductile depth,the influence factors on brittle/ductile transition behavior,the wear of diamond grits in diamond grinding of ultra pure fused silica(UPFS) are investigated by means of micro/nano indentation technique,as well as single grit diamond grinding on an ultra-stiff machine tool,Tetraform 'C'.The single grit grinding processes are in-process monitored using acoustic emission(AE) and force dynamometer simultaneously.The wear of diamond grits,morphology and subsurface integrity of the machined groves are examined with atomic force microscope(AFM) and scanning electron microscope(SEM).The critical brittle/ductile depth of more than 0.5 μm is achieved.When compared to the using roof-like grits,by using pyramidal diamonds leads to higher critical depths of scratch with identical grinding parameters.However,the influence of grit shapes on the critical depth is not significant as supposed.The grinding force increased linearly with depth of cut in the ductile removal regime,but in brittle removal regime,there are large fluctuations instead of forces increase.The SEM photographs of the cross-section profile show that the median cracks dominate the crack patterns beneath the single grooves.Furthermore,The SEM photographs show multi worn patterns of diamond grits,indicating an inhomogeneous wear mechanism of diamond grits in grinding of fused silica with diamond grinding wheels.The proposed research provides the basal technical theory for improving the ultra-precision grinding of UPFS. | ZHAO Qingliang GUO Bing STEPHENSIN David CORBETT John | 2011 | Chinese Journal of Mechanical Engineering2011,24,6: | 10 |
| 3 | The problem of assessing effective neuroprotection in experimental cerebral ischemia显示文摘 | Corbett D Nurse S | | 0,,: | 2 |
| 4 | Intragastric distribution and gastric emptying of solids and liquids in functional dyspepsia显示文摘 | A. M. Scott FRACP Dr. J. E. Kellow MD FRACP B. Shuter MSc H. Cowan RN A.-M. Corbett NMT J. W. Riley MD FRACP M. R. Lunzer FRCP FRACP R. P. Eckstein FRCPA R. H?schl MD S.-K. Lam MD FRCP FRACP M. P. Jones PhD | 1993 | Digestive Diseases and Sciences1993,,12: | 2 |
| 5 | A general approach to implementation of the 4π participation of 1 - zza - 1,3 - butadienes in diels-alder reactions显示文摘 | BOGER D L CORBETT W L CURRANT T | 1991 | J Am Chem Soc1991,113,: | 2 |
| 6 | Oxidative stress induces protein and DNA radical formation in follicular dendritic cells of the germinal center and modulates its cell death patterns in late sepsis显示文摘 | Saurabh Chatterjee Olivier Lardinois Suchandra Bhattacharjee Jeff Tucker Jean Corbett Leesa Deterding Marilyn Ehrenshaft Marcelo G. Bonini Ronald P. Mason | 2011 | Free Radical Biology and Medicine2011,,8: | 2 |
| 7 | GPS single epoch ambiguity resolution 显示文摘 | Corbett S J Cross P A | 1995 | Survey Review1995,33,257: | 2 |
| 8 | The Impact of a Statewide Pre-Hospital STEMI Strategy to Bypass Hospitals Without Percutaneous Coronary Intervention Capability on Treatment Times显示文摘 | Emil L. Fosbol Christopher B. Granger James G. Jollis Lisa Monk Li Lin Barbara L. Lytle Ying Xian J. Lee Garvey Greg Mears Claire C. Corbett Eric D. Peterson Seth W. Glickman | 2013 | Circulation2013,,5: | 2 |
| 9 | Evaluating environmental performance using statistical process control techniques显示文摘 | Charles J. Corbett Jeh-Nan Pan | 2002 | European Journal of Operational Research2002,,1: | 2 |
| 10 | The Cognitive Perspective in Entrepreneurship: An Agenda for Future Research显示文摘 | Denis A. Grégoire Andrew C. Corbett Jeffery S. McMullen | 2010 | Journal of Management Studies2010,,6: | 2 |
| 11 | Deformation Analysis of Micro/Nano Indentation and Diamond Grinding on Optical Glasses显示文摘The previous research of precision grinding optical glasses with electrolytic in process dressing (ELID) technology mainly concentrated on the action of ELID and machining parameters when grinding, which aim at generating very 'smoothed' surfaces and reducing the subsurface damage. However, when grinding spectrosil 2000 and BK7 glass assisted with ELID technology, a deeply comparative study on material removal mechanism and the wheel wear behaviors have not been given yet. In this paper, the micro/nano indentation technique is initially applied for investigating the mechanical properties of optical glasses, whose results are then refereed to evaluate the machinability. In single grit diamond scratching on glasses, the scratching traces display four kinds of scratch characteristics according to different material removal modes. In normal grinding experiments, the result shows BK7 glass has a better machinability than that of spectrosil 2000, corresponding to what the micro/nano indentation vent revealed. Under the same grinding depth parameters, the smaller amplitude of acoustic emission (AE) raw signals, grinding force and grinding force ratio correspond to a better surface quality. While for these two kinds of glasses, with the increasing of grinding depth, the variation trends of the surface roughness, the force ratio, and the AE raw signals are contrary, which should be attributed to different material removal modes. Moreover, the SEM micrographs of used wheels surface indicate that diamond grains on the wheel surface after grinding BK7 glass are worn more severely than that of spectrosil 2000. The proposed research analyzes what happened in the grinding process with different material removal patterns, which can provide a basis for producing high-quality optical glasses and comprehensively evaluate the surface and subsurface integrity of optical glasses. | ZHAO Qingliang ZHAO Lingling GUO Bing STEPHENSIN David CORBETT John | 2012 | Chinese Journal of Mechanical Engineering2012,25,3: | 2 |
| 12 | Absorption and elimination of trivalent and hexavalent chromium in Humans following ingestion of a bolus dose in Drinking Water 显示文摘 | Kerger B D Paustenbach D J Corbett G E | 1996 | Toxicology and Applied Pharmacology1996,,141: | 1 |
| 13 | Discovery and preclinical antitumor efficacy evaluations of LY32262 and LY33169 显示文摘 | CORBETT TH WHITE K POLIN L | 2003 | Invest New Drugs2003,21,1: | 1 |
| 14 | The role and regulation of COX-2 during viral infection 显示文摘 | Steer S A Corbett J A | 2003 | Viral Immunol2003,16,4: | 1 |
| 15 | Double stranded RNA inhibits beta cell function and induces islet damage by stimulating beta-cell production of nitric oxide 显示文摘 | Scarim AL Corbett JA | 1999 | J Biol Chem1999,274,12: | 1 |
| 16 | Designing supply con tracts:contract type and information asymmetry显示文摘 | CORBETT C J ZHOU D TANG C S | 2004 | Manage- meat Science2004,50,4: | 1 |
| 17 | Delayed postischemic hypothermia:a six month survival study using behavioral and histological assessments of neuroprotection 显示文摘 | Colbourne F Corbett D | 1995 | J Neurosci1995,15,11: | 1 |
| 18 | Competition and Structure in Serial Supply Chains with Deterministic Demand显示文摘 | Charles J Corbett Uday S Karmarkar | 2001 | Management Science2001,47,7: | 1 |
| 19 | Shared-savings contracts for indirect materials in supply chains: Cannel profits and environmental impacts显示文摘 | Corbett C J DeCroix G A | 2001 | Management Science2001,47,7: | 1 |
| 20 | Bile peritonitis after removeal of T --tube from the common bile duct显示文摘 | Corbett C R Fyfe N C Nicholls R J etal | 1986 | Br J Surg1986,73,64: | 1 |