|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Application of Smith Predictor Based on Single Neural Network in Cold Rolling Shape Control显示文摘Flatness is one of the most important criterion factors to evaluate the quality of the steel strip. To improve the strip’s flatness quality, the most frequently used methodology is to employ the closed-loop automatic shape control system. However, in the shape control system, the shape-meter is always installed at the down way of the exit of the cold rolling mill and can not sense the changes of the strip flatness in the rolling gap directly. This kind of installation results in the delay of the feedback in the control system. Therefore, the stability and response performance of the system are strongly affected by the delay. At present, there is still no mature way to design controllers for systems with time delay. Although the conventional PID controller used in most practical applications has the capability to compensate the delay, the effect of the compensation is limited, especially for the systems with long time delay. Smith predictor, as a compensator for solving this problem, is now widely used in industry systems. However, the request of highly precise model of the system and the poor adaptive performance to the changes of related parameters limit the application of the Smith predictor in practice. In order to overcome the drawbacks of the Smith predictor, a new Smith predictor based on single neural network PID (SNN-PID) is proposed. Because the single neural network is employed into the Smith predictor to improve the controller’s self-adaptability, the adaptive capability to the varying parameters of the system is improved. Meanwhile, for the purpose of solving the problems such as time-consuming and complicated calculation of the neural networks in real time, the learning coefficient of neural network is divided into several stages as usually done in expert control system. Therefore, the control system can obtain fast response due to the improved calculation speed of the neural networks. In order to validate the performance of the proposed controller, the experiment is conducted on the shape control system in a 300 mm four-high reversing cold rolling mill. The experimental results show that the SNN-PID with Smith predictor controller can effectively compensate the delay effects and achieve better control performance than the conventional PID controller. | WANG Yiqun SUN FD LIU Jian SUN Menghui XIE Yihan | 2009 | Chinese Journal of Mechanical Engineering2009，22，2： | 14 |
| 2 | Giant magneto-impedance effects in nanocrystalline soft magnetic alloy ribbons显示文摘SINCE the discovery of the giant magneto-impedance (GMI) effects in amorphous wire (or rib-bon) of CoFeSiB and nanocrystalline wire (or film) of FeCuNbSiB, it has attracted greatattention due to its promising potential applications in industry. Amorphous (and nanocrys-talline) soft magnetic alloys have very large magnetic permeability, when an ac driving currentand an external magnetic field (EMF) are applied, the EMF will damp the magnetic fluxchange caused by the ac driving current, thus the magnetic permeability will decrease; as a re- | Ku, WJ Ge, FD Yan, G Wang, XY Zhu, J | 1997 | Chinese Science Bulletin1997，42，12： | 5 |
| 3 | Risk factors and mortality in patients with nosocomial Staphylococcus aureus bacteremia显示文摘 | Wang FD Chen YY Chen TL | 2008 | Am J Infect Control2008，36，2： | 1 |
| 4 | Role for interferon-gamma in rat strains with different susceptibility to experimental autoimmune myasthenia gravis 显示文摘 | Wang HB Shi FD Li H | 2000 | Clin Immunol2000，95，2： | 1 |
| 5 | Risk factors for central venous catheter-related infections in general surgery 显示文摘 | Chen HS Wang FD Lin M | 2006 | J Microbiol Immunol Infect2006，39，3： | 1 |
| 6 | Preparation and evaluation of solid dispersions of nitrendipine prepared with fine silica parti- cles using the melt-mixing method 显示文摘 | Wang L Cui FD Sunada H | 2006 | Chem Pharm Bull2006，54，1： | 1 |
| 7 | Role for interferon-gamma in rat strains with different susceptibility to experimental autoimmune myasthenia gravis显示文摘 | Wang HB Shi FD Li HL | 2000 | Clin Immunol2000，95，2： | 1 |
| 8 | Anorectal anomaly: neuropatho- logical changes in the sacral spinal cord 显示文摘 | Li L Li Z Wang LY Xiao FD | 1993 | J Pediatr Surg1993，28，7： | 1 |
| 9 | A comparative study of ceffriaxone pl- us amikacin, ceftazidime plus amikacin and imipenem/ cilastatin in the empiric therapy of febrile granulocytope- nic cancer patients显示文摘 | Liu CY Wang FD | 1989 | Chemotherapy1989，，352： | 1 |
| 10 | Effects of antipsychotic drugs on neurogenesis in the forebrain of the adult rat显示文摘 | Wang HO Dunnavant FD Jarman T et af | 2004 | Neuropsychopharmacol ogy2004，29，： | 1 |
| 11 | Increasing frequency of idiopathic membranous nephropathy in primary glomerular disease:a 10 -year renal biopsy study from a single Chinese nephrology centre 显示文摘 | Zhu P Zhou FD Wang SX | 2015 | Nephrology (Carlton)2015，20，8： | 1 |
| 12 | Role for interferon-γin rat strains with different susceptibility to experimental autoimmune myasthenia gravis显示文摘 | Shi FD Li HL | 2000 | Clin Immunol2000，95，2： | 1 |
| 13 | In vitro activities of β-1actam antibiotics alone and in combination with sulbactam against Gram- negative bacteria显示文摘 | Wang FD Lin ML Lee WS | 2004 | Int J Antimicrob Agents2004，23，6： | 1 |
| 14 | Human milk kills parasitic in- testinal protozoa显示文摘 | Gillin FD Reiner DS Wang CS | 1983 | Science1983，221，4617： | 1 |
| 15 | Role for interferon-γ inRat strains with different susceptibility to experimental autoimmune myasthenia gravis显示文摘 | Wang HB Shi FD Li HL | 2000 | Clin Immunol2000，95，2： | 1 |
| 16 | Mechanisms of nasal tolerance induction in experi-mental autoimmune myasthenia gravis:identication of regulatory cells显示文摘 | Shi FD Li H Wang H | 1999 | Immunol1999，162，： | 1 |
| 17 | Increasing frequency of idiopathic membranous nephropathy in primary glomerular disease: a 10-year renal biopsy study from a single Chinese nephrology centre 显示文摘 | Zhu P Zhou FD Wang SX | 2015 | Nephrology (Carlton)2015，20，8： | 1 |
| 18 | In vitro activities of beta-lactam antibiotics alone and in combination with sulbactam a-gainst Gram-negative bacteria显示文摘 | Wang FD Lin ML Lee WS | 2004 | Int J Antimicrob Agents2004，23，6： | 1 |
| 19 | Role for interferon-gamma in rat strains with different susceptibility to experimental autoimmune myasthenia gravis显示文摘 | Wang HB Shi FD Li H | 2000 | Clin Immunol2000，95，： | 1 |
| 20 | Klebsiella pneumoniae liver ab- scess in diabetic patients: association of glycemic control with the clinical characteristics显示文摘 | Lin YT Wang FD Wu PF | 2013 | BMC Infect Dis2013，13，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员