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| 1 | 基于变分模态分解和蝙蝠算法-相关向量机的短期风速区间预测显示文摘现有的风速预测方法大多是确定性的点预测,无法描述风速的随机性。针对该问题,建立基于变分模态分解(VMD)和蝙蝠算法-相关向量机(BA-RVM)的短期风速区间预测模型。对原始风速序列进行变分模态分解获得多个子序列;采用样本熵(SE)算法对子序列进行重组得到3类具有典型特性的分量;对各分量采用相关向量机算法分别建立预测模型。为进一步提高预测精度、缩小区间范围,引入蝙蝠算法(BA)对预测模型进行参数优化。将各分量的预测结果进行叠加求和得到一定置信水平下总体的区间预测结果。实际算例结果表明,与现有方法相比,所提区间预测方法的预测精度和区间覆盖率更高,区间宽度更窄。 | 范磊 卫志农 李慧杰 Kwok W Cheung 孙国强 孙永辉 | 2017 | 电力自动化设备2017，37，1： | 44 |
| 2 | 基于改进高斯过程回归模型的短期负荷区间预测显示文摘考虑到电力系统短期负荷预测的精度直接影响电网运行的经济性和安全性,而传统点预测方法不能计及电网运行中的众多不确定性因素,提出一种基于改进高斯过程回归的短期负荷区间预测方法。采用模糊C-均值聚类算法从历史数据中寻找相似日,从而构建更为合理的样本集,并采用多核协方差函数改进传统高斯过程回归算法,最终得到一定置信水平下的区间预测结果。实际算例计算结果表明,该方法与常规方法相比,预测精度有所提高,其区间预测结果覆盖率较高,适合工程实际应用。 | 宗文婷 卫志农 孙国强 李慧杰 CHEUNG Kwok W 孙永辉 | 2017 | 电力系统及其自动化学报2017，29，8： | 34 |
| 3 | 基于相似日和CAPSO-SNN的光伏发电功率预测显示文摘针对光伏发电功率预测精度不高的问题,提出一种基于相似日和云自适应粒子群优化(CAPSO)算法优化Spiking神经网络(SNN)的发电功率预测模型。考虑到季节类型、天气类型和气象等主要影响因素,提出以综合相似度指标进行相似日选取;以SNN强大的计算能力和其善于处理时间序列问题的特点为基础,结合CAPSO算法搜索的随机性和稳定性优化SNN的多突触连接权值,减少对权值的约束,提高算法的收敛精度。根据某光伏电站的实测功率数据对所提模型进行测试和评估,结果表明,该模型比传统预测模型具有更高的预测精度和更好的适用性。 | 陈通 孙国强 卫志农 臧海祥 孙永辉 Kwok W Cheung 李慧杰 | 2017 | 电力自动化设备2017，37，3： | 28 |
| 4 | High-intensity focused ultrasound ablation:An effective bridging therapy for hepatocellular carcinoma patients显示文摘AIM:To analyze whether high-intensity focused ultrasound(HIFU) ablation is an effective bridging therapy for patients with hepatocellular carcinoma(HCC).METHODS:From January 2007 to December 2010,49 consecutive HCC patients were listed for liver transplantation(UCSF criteria).The median waiting time for transplantation was 9.5 mo.Twenty-nine patients received transarterial chemoembolization(TACE) as a bringing therapy and 16 patients received no treatment before transplantation.Five patients received HIFU ablation as a bridging therapy.Another five patients with the same tumor staging(within the UCSF criteria) who received HIFU ablation but not on the transplant list were included for comparison.Patients were comparable in terms of Child-Pugh and model for end-stage liver disease scores,tumor size and number,and cause of cirrhosis.RESULTS:The HIFU group and TACE group showed no difference in terms of tumor size and tumor number.One patient in the HIFU group and no patient in the TACE group had gross ascites.The median hospital stay was 1 d(range,1-21 d) in the TACE group and two days(range,1-9 d) in the HIFU group(P < 0.000).No HIFU-related complication occurred.In the HIFU group,nine patients(90%) had complete response and one patient(10%) had partial response to the treatment.In the TACE group,only one patient(3%) had response to the treatment while 14 patients(48%) had stable disease and 14 patients(48%) had progressive disease(P = 0.00).Seven patients in the TACE group and no patient in the HIFU group dropped out from the transplant waiting list(P = 0.559).CONCLUSION:HIFU ablation is safe and effective in the treatment of HCC for patients with advanced cirrhosis.It may reduce the drop-out rate of liver transplant candidate. | Tan To Cheung Sheung Tat Fan See Ching Chan Kenneth SH Chok Ferdinand SK Chu Caroline R Jenkins Regina CL Lo James YY Fung Albert CY Chan William W Sharr Simon HY Tsang Wing Chiu Dai Ronnie TP Poon Chung Mau Lo | 2013 | World Journal of Gastroenterology2013，19，20： | 23 |
| 5 | 基于相关向量机的短期风速预测模型显示文摘通过对风速的时间序列进行分析,表明该序列具有混沌特性。在此基础上,利用相空间重构理论建立基于相关向量机(RVM)的短期风速预测模型,并对不同的核函数进行分析,选出最优的核函数。与现有的风速预测模型相比,该模型具有高稀疏性、核函数选择灵活等优点。仿真结果表明,与BP神经网络和支持向量机(SVM)模型相比,RVM模型预测精度更高。 | 李慧杰 刘亚南 卫志农 李晓露 Kwok W Cheung 孙永辉 孙国强 | 2013 | 电力自动化设备2013，33，10： | 13 |
| 6 | 基于Spiking神经网络的光伏系统发电功率预测显示文摘为了提高光伏系统发电功率预测的精度,本文提出一种基于Spiking神经网络(SNN)的预测模型。该神经网络采用精确脉冲时间的编码方式,更接近真实的生物神经系统,具有强大的计算能力。考虑季节类型、天气类型和大气温度等主要影响因素,该模型采用灰色关联分析法选取相似日。本文应用实际光伏发电系统的数据分别对基于SNN、BP人工神经网络(BP-ANN)和支持向量机(SVM)的预测模型进行测试和评估。预测结果表明:SNN预测模型相比于BP-ANN和SVM模型有较高的预测精度和较强的适用性,可以为光伏系统发电功率预测提供一种可行方法。 | 陈通 孙国强 卫志农 李慧杰 CHEUNG KWOK W 孙永辉 | 2017 | 电力系统及其自动化学报2017，29，6： | 10 |
| 7 | 基于小波分析和集成学习的光伏输出功率短期预测显示文摘针对光伏输出功率的预测精度影响系统安全调度和稳定运行的问题,该文建立了基于小波分析和集成学习的光伏输出功率短期预测模型。考虑到光伏输出功率的波动性与随机性,引入小波分析将数据分解成趋势项和随机项,并分别对其建模。其中,趋势项采用SVM算法,随机项采用BP算法进行预测处理;再考虑到随机项的非平稳性和BP算法的固有缺点,为提高预测精度,将集成学习引入随机项的预测模型。大量测试结果表明,基于小波分析和集成学习的短期预测模型的预测精度优于现有几种模型。 | 孙永辉 范磊 卫志农 李慧杰 Kwok W Cheung 孙国强 | 2016 | 电力系统及其自动化学报2016，28，4： | 10 |
| 8 | 可再生能源发电并网后大电网运行的智能调度显示文摘随着风力发电等可再生能源的并网及需求响应的实施,电力系统平衡稳定运行的不确定因素显著增加。为应对这些不确定性,区域输电组织(RTO)或大型电网公司的调度系统需要在传统的实时监控基础上有更强的超前预测能力。提出了一种新型的调度体系——发电控制应用(GCA),以应对可再生能源并网带来的挑战。此系统凭借动态的、鲁棒的调度算法和灵活的系统配置,使调度系统可以确保电力系统具有足够的跟踪能力以应对可再生能源的不确定性、间歇性,保证大电网运行的可靠性。 | Kwok W Cheung Eric Zhao Mike Yao | 2011 | 能源技术经济2011，23，11： | 8 |
| 9 | 染色体基因芯片分析在临床遗传病诊断中的应用和结果解读显示文摘人类基因组的变异包括基于单个碱基或小片段插入缺失的单核苷酸多态性(SNP)和影响很多碱基的基因组拷贝数变异(CNV),CNV包括基因组的缺失和扩增等,片段从小于1 kb到Mb级不等。CNV与很多人类疾病相关[1~3]。由染色体微缺失和微扩增等导致的疾病称为基因组病,随着检测手段的提高,被认知的基因组病数量快速增加。染色体微缺失和微扩增在各种表型的患者中均有发现。 | 王慧君 Bi Weimin 吴冰冰 周文浩 Cheung Sau W | 2014 | 中国循证儿科杂志2014，9，3： | 7 |
| 10 | 儿童期肥胖、成年期肥胖和心血管风险因子显示文摘过去30年,儿童超重或肥胖的发生率明显增加[1]。儿童期肥胖是死亡率增加的预测因子,这主要是由于儿童期肥胖可导致心血管疾病发生率增加。相关的预测研究提示"肥胖流行症"可能改变目前心血管疾病死亡率下降的趋势,使现今儿童的寿命缩短。 | Juonala M Magnussen CG Berenson GS Venn A Burns TL Sabin MA Srinivasan SR Daniels SR Davis PH Chen W Sun C Cheung M Viikari JS Dwyer T Raitakari OT 叶鹏 | 2012 | 中华高血压杂志2012，20，1： | 6 |
| 11 | Modulation of graft vascular inflow guided by flowmetry and manometry in liver transplantation显示文摘BACKGROUND:Survival of the partial graft after living donor liver transplantation owes much to its tremendous regenerative ability.With excellent venous outflow capacity,a graft within a wide range of graft-to-standard-liver-volume ratios can cope with portal hypertension that is common in liver transplant recipients.However,when the ratio range is exceeded,modulation of graft vascular inflow becomes necessary for graft survival.The interplay between graft-to-standard-liver-volume ratio and portal pressure,in the presence of portosystemic shunt or otherwise,requires individualized modulation of graft portal and arterial inflows.Boosting of portal inflow by shunt ligation can be guided by transonic flowmetry,whereas muting of portal inflow by splenic artery ligation can be monitored by portal electronic manometry.METHOD:We describe four cases to illustrate the above.RESULTS:One patient had hepatic artery thrombosis resulting from splenic artery steal syndrome which was the sequela of small-for-size syndrome.Emergency splenic artery ligation and re-anastomosis of the hepatic artery successfully muted the portal inflow and boosted the hepatic arterial inflow.Another patient with portal vein thrombosis underwent thrombendvenectomy.Portal inflow was boosted with ligation of portosystemic shunt,which is often present in these patients with portal hypertension.The coexistence of splenic aneurysm and splenorenal shunt required ligation of both in the third patient.The fourth patient,with portal pressure and flow monitoring,avoided ligation of a coronary vein which became a main portal inflow after portal thrombendvenectomy.CONCLUSION:Management of graft inflow modulation guided selectively by transonic flowmetry or portal manometry was described. | See Ching Chan Chung Mau Lo Kenneth SH Chok William W Sharr Tan To Cheung Simon HY Tsang Albert CY Chan Sheung Tat Fan | 2011 | Hepatobiliary & Pancreatic Diseases International2011，10，6： | 5 |
| 12 | 射频磁控共溅射GaAs/SiO_2纳米颗粒镶嵌薄膜的光学性质显示文摘应用射频磁控共溅射方法和真空退火方法制备了GaAs SiO2 纳米颗粒镶嵌薄膜 .X射线衍射实验结果表明 ,经高温退火的薄膜中形成了面心立方闪锌矿结构的GaAs纳米晶粒 ,晶粒平均直径为 1.5— 3.2nm .吸收光谱展示了由于强量子限域引起的 1.5— 2eV的吸收边蓝移 .室温光致荧光 (PL)光谱显示了电子 重空穴激子与电子 劈裂空穴激子的近紫外和紫外双PL谱峰以及深俘获态的PL谱峰 .对实验吸收边蓝移量与有效质量模型的蓝移量的悬殊差别、俘获态PL谱的形成以及PL谱线的特征作了解释 .应用激光Z扫描技术测量了退火温度为 5 0 0℃的复合膜在非共振条件下的光学非线性 ,结果表明 ,复合膜的非线性折射率系数和非线性吸收系数都比块材GaAs相应的系数增大了 5个数量级 . | 丁瑞钦 王浩 于英敏 王宁娟 佘卫龙 李润华 丘志仁 罗莉 蔡志岗 W Y Cheung S P Wong | 2002 | 物理学报2002，51，4： | 4 |
| 13 | 染色体22q11区域的基因组病显示文摘基因组病是指由于人类基因组DNA的异常重排而引起临床表型的一类疾病[1]。人类的22号染色体是一个端着丝粒染色体,多个基因组病发生于22q11染色体区域。该区域富含具有高度同源性,导致基因组不稳定的低拷贝重复序列(low-copy repeats,LCRs),又称为片段重复(segmental duplications)。 | 赵欣荣 Weimin Bi Cheung Sau W | 2015 | 中国循证儿科杂志2015，10，5： | 3 |
| 14 | Inflammation and nutrition in children with chronic kidney disease显示文摘Chronic inflammation and nutritional imbalance are important comorbid conditions that correlate with poor clinical outcomes in children with chronic kidney disease(CKD). Nutritional disorders such as cachexia/protein energy wasting, obesity and growth retardation negatively impact the quality of life and disease progression in children with CKD. Inadequate nutrition has been associated with growth disturbances in children with CKD. On the other hand, over-nutrition and obesity are associated with poor outcomes in children with CKD. The exact mechanisms leading to these unfavorable conditions are not fully elucidated and are most likely multifactorial. In this review, we focus on the pathophysiology of nutrition disorders and inflammation and their impact on clinical outcomes in children with CKD. | Juan Tu Wai W Cheung Robert H Mak | 2016 | World Journal of Nephrology2016，5，3： | 3 |
| 15 | High-intensity focused ultrasound ablation as a bridging therapy for hepatocellular carcinoma patients awaiting liver transplantation显示文摘The scarcity of liver grafts in Asia leads to a significant dropout of patients from liver transplant waiting lists, particularly patients with hepatocellular carcinoma and a low model for end-stage liver disease score. In order to reduce dropping out, different bridging therapies are employed. We report the use of high-intensity focused ultrasound ablation as a bridging therapy for a patient with hepatocellular carcinoma of stage two and an extremely low platelet count (20×10 9 /L). The ablation was successful. Blood tests showed that his liver function was similar before and after the treatment. No adhesion was encountered in the liver transplantation performed six months later. | Tan To Cheung Kenneth SH Chok Regina CL Lo William W Sharr See Ching Chan Ronnie TP Poon Sheung Tat Fan Chung Mau Lo | 2012 | Hepatobiliary & Pancreatic Diseases International2012，11，5： | 3 |
| 16 | 基于NMF-SVM的光伏系统发电功率短期预测模型显示文摘根据光伏发电系统的历史发电数据和气象数据,考虑天气类型、日照强度和大气温度及风速等因素,提出一种基于非负矩阵分解(nonnegative matrix factorization,NMF)和支持向量机(support vector machine,SVM)的光伏系统发电功率短期预测模型。基于差异性和相关性原理,同时考虑相似日选择算法,通过NMF算法对由相似日组成的输入样本进行分解,得到非负的低维映射矩阵,将其作为支持向量机的输入,预测光伏系统的发电功率。该模型在消除冗余信息、减少变量维数的同时,保留了原始问题的实际意义。实例表明,该方法降维效果明显,预测精度得到显著的提高。 | 吴江 卫志农 李慧杰 李晓露 Kwok W Cheung 孙永辉 孙国强 | 2014 | 华东电力2014，42，2： | 3 |
| 17 | Microcellular polymeric materials from microemulsions:Control of microstructure and morphology显示文摘 | W R P Raj M Sasthav H M Cheung | 1993 | Journal of Applied Polymer Science1993，47，3： | 2 |
| 18 | The effect of talc on cell nucleation in extrusion foam processing of polypropylene with CO2 and isopentane显示文摘 | Park C B Cheung L K Song S W | 1998 | Cellular Polymers1998，17，4： | 2 |
| 19 | Cervical Intervertebral Disc Degeneration Induced by Unbalanced Dynamic and Static Forces: A Novel In Vivo Rat Model显示文摘 | Yong-Jun Wang Qi Shi W W. Lu K C. M. Cheung Michael Darowish Tian-Fang Li Yu-Feng Dong Chong-Jian Zhou Quan Zhou Zhi-jun Hu Mei Liu Qin Bian Chen-Guang Li K D. K. Luk J C. Y. Leong | 2006 | Spine2006，，14： | 2 |
| 20 | Impact of obesity on kidney function and blood pressure in children显示文摘In recent years, obesity has become an increasingly important epidemic health problem in children and adolescents. The prevalence of the overweight status in children grew from 5% to 11% from 1960 s to 1990 s. The epidemic of obesity has been paralleled by an increase in the incidence of chronic kidney disease(CKD) and hypertension. Results of several studies have demonstrated that obesity and metabolic syndrome were independent predictors of renal injury. The pathophysiology of obesity related hypertension is complex, including activation of sympathetic nervous system, renin angiotensin aldosterone system, hyperinsulinemia and inflammation. These same mechanisms likely contribute to the development of increased blood pressure in children. This review summarizes the recent epidemiologic data linking obesity with CKD and hypertension in children, as well as the potential mechanisms. | Wei Ding Wai W Cheung Robert H Mak | 2015 | World Journal of Nephrology2015，4，2： | 2 |
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