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| 1 | Haze formation in China: Importance of secondary aerosol显示文摘Air pollution is the world's largest single environmental hazard that causes more than a few million premature deaths in 2012(World Health Organization,2014),particularly in developing countries with rapid industrialization and urbanization.Rapid economic growth of China in the last three decades has resulted in serious air pollution problems on both local and regional scales. | Alex K.Y.Lee | 2015 | Journal of Environmental Sciences2015，27，7： | 5 |
| 2 | Data-driven nonlinear control of a solid oxide fuel cell system显示文摘Solid oxide fuel cells (SOFCs) are considered to be one of the most important clean,distributed resources. However,SOFCs present a challenging control problem owing to their slow dynamics,nonlinearity and tight operating constraints. A novel data-driven nonlinear control strategy was proposed to solve the SOFC control problem by combining a virtual reference feedback tuning (VRFT) method and support vector machine. In order to fulfill the requirement for fuel utilization and control constraints,a dynamic constraints unit and an anti-windup scheme were adopted. In addition,a feedforward loop was designed to deal with the current disturbance. Detailed simulations demonstrate that the fast response of fuel flow for the current demand disturbance and zero steady error of the output voltage are both achieved. Meanwhile,fuel utilization is kept almost within the safe region. | 李益国 沈炯 K.Y.Lee 刘西陲 费文哲 | 2012 | Journal of Central South University2012，19，7： | 2 |
| 3 | A maximum loading margin method for static voltage stability in power systems显示文摘 | A.Sode-Yome N.Mithulananthan K.Y.Lee | | 0，，02： | 1 |
| 4 | A particle swarm optimization for economic dispatch with nonsmooth cost functions显示文摘 | J. B. Park K. S. Lee J. R. Shin K.Y.Lee | | 0，，01： | 1 |
| 5 | The effect of the magnetic fields from three different configurations of the MRIgRT systems on the dose deposition from lateral opposing photon beams in a laryngeal geometry–A Monte Carlo study显示文摘Objective:To investigate the impact of different magnetic field strengths and orientations on the dose deposition from lateral opposing photon beams irradiating a laryngeal geometry,with particular attention focused on the dose homogeneity of the area around the air cavity inside the larynx.Methods:Geant4 simulation toolkit was used to perform Monte Carlo simulations on a phantom resembling the larynx.The energy spectrum of a 6 MV photon beam from a Varian Clinac iX machine was used to provide the source of radiation.Three configurations of the Magnetic Resonance Image-Guided Radiation Therapy(MRIgRT)system were simulated:the Fixed Cylindrical(FC)geometry,the Longitudinal Rotating Biplanar(LRBP)geometry,and the Transverse Rotating Biplanar(TRBP)geometry.Uniform magnetic fields of different field strengths were applied.The relative dose maps and the homogeneity index(HI)were obtained for evaluations.Results:The LRBP geometry together with a magnetic field strength of 0.5 T produced the most homogeneous dose distribution with a HI of 0.139 for the region of interest around the air cavity,compared with a HI of 0.180 when the magnetic field was absent.For TRBP geometry,the dose distribution shifted towards the cranial direction,leading to a region of hot spots at the superior edge and a region of cold spots at the inferior edge of the irradiated volume.The HI around the air cavity was therefore worse.In addition,strong electron streaming effect(ESE)was observed.For the FC geometry,hot and cold spots were formed around the air cavity which increased the HI.Conclusions:Out of the three configurations of the MRIgRT systems,the LRBP geometry produced the most clinically beneficial dose distribution in which it provided a higher dose to the treatment area and a boost in dose to the tissue immediately adjacent to the air cavity. | Vivien W.S.Chu Monica W.K.Kan Louis K.Y.Lee Kenneth C.W.Wong Macy Tong Anthony T.C.Chan | 2021 | Radiation Medicine and Protection2021，2，3： | 0 |
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