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| 1 | 固定低剂量三联抗高血压药物与常规治疗对斯里兰卡轻度至中度高血压患者血压控制的疗效差异:一项随机临床试验显示文摘控制不良的高血压是全球领先的公共卫生问题,需要新的治疗策略。该研究评估低剂量三联抗高血压药物治疗是否能达到比常规治疗更好的血压控制。研究者纳入2016年2月至2017年5月在斯里兰卡11所城市医院诊所就诊的需要开始抗高血压治疗(未治疗的患者)或接受单药治疗的患者,进行低剂量三联降压与常规治疗比较的随机、开放性试验,随访至2017年10月。 | Web-ster R Salam A de Silva HA Selak V Stepien S Rajapakse S Amarasekara S Amarasena N Billot L de Silva AP Fernando M Guggilla R Jan S Jayawardena J Maulik PK Mendis S Munasinghe J Naik N Prabhakaran D Ranasinghe G Thom S Tisserra N Senaratne V Wijekoon S Wijeyasingam S Rodgers A Patel A 刘莉 叶鹏 | 2018 | 中华高血压杂志2018，26，12： | 7 |
| 2 | Balance Control of a Biped Robot on a Rotating Platform Based on Efficient Reinforcement Learning显示文摘In this work,we combined the model based reinforcement learning(MBRL)and model free reinforcement learning(MFRL)to stabilize a biped robot(NAO robot)on a rotating platform,where the angular velocity of the platform is unknown for the proposed learning algorithm and treated as the external disturbance.Nonparametric Gaussian processes normally require a large number of training data points to deal with the discontinuity of the estimated model.Although some improved method such as probabilistic inference for learning control(PILCO)does not require an explicit global model as the actions are obtained by directly searching the policy space,the overfitting and lack of model complexity may still result in a large deviation between the prediction and the real system.Besides,none of these approaches consider the data error and measurement noise during the training process and test process,respectively.We propose a hierarchical Gaussian processes(GP)models,containing two layers of independent GPs,where the physically continuous probability transition model of the robot is obtained.Due to the physically continuous estimation,the algorithm overcomes the overfitting problem with a guaranteed model complexity,and the number of training data is also reduced.The policy for any given initial state is generated automatically by minimizing the expected cost according to the predefined cost function and the obtained probability distribution of the state.Furthermore,a novel Q(λ)based MFRL method scheme is employed to improve the policy.Simulation results show that the proposed RL algorithm is able to balance NAO robot on a rotating platform,and it is capable of adapting to the platform with varying angular velocity. | Ao Xi Thushal Wijekoon Mudiyanselage Dacheng Tao Chao Chen | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，4： | 5 |
| 3 | A novel technique to compensate volatage sags in multiline distribution system-the interline dynamic voltage restorer 显示文摘 | Mahinda Vilathgamuwa D Wijekoon H M Choi S S | 2006 | IEEE Transactions on Industrial Electionics2006，53，5： | 1 |
| 4 | Mean square error matrix superiority of estimators under linear restriction and misspecification显示文摘 | Wijekoon P Trenkler G | 1989 | Economics Letters1989，30，： | 1 |
| 5 | Implementation of a hybrid AC-AC direct power converter with unity voltage transfer显示文摘 | Wijekoon T Klumpner C Wheeler P | 2008 | IEEE Transactions on Power Electronics2008，23，4： | 1 |
| 6 | A robust three phase power flow algorithm for radial distribution systems显示文摘 | Thukaram D Wijekoon Banda H M Jerome J | 1999 | Electric Power Systems Research1999，50，： | 1 |
| 7 | Homocysteine me- tabolism in diabetes显示文摘 | Wijekoon EP Brosnan ME Brosnan JT | 2007 | Biochem Soc Trans2007，35，5： | 1 |
| 8 | Imple- mentation of a hybrid AC-AC direct power converter with unity voltage transfer 显示文摘 | WIJEKOON T KLUMPNER C ZANCHETTA P | 2008 | IEEE Transactions on Power Electronics2008，23，4： | 1 |
| 9 | Interline dynamic voltage restorer:a novel and economical approach for multi-line power quality compensation显示文摘 | VILATHGAMUWA M WIJEKOON H M CHOI S S | 2004 | IEEE Transactions on Power Delivery2004，17，5： | 1 |
| 10 | Interline dynamic voltage restorer:a novel and economicai approach for multiline power quality compensation显示文摘 | Vilathgamuwa D M Wijekoon H M Choi S S | 2004 | IEEE Tram on Industry Applications2004，40，6： | 1 |
| 11 | A Novel Technique to Compensate Voltage Sags in Multiline Distribution System-The Interline Dynam- ic Voltage Restorer显示文摘 | Vilathgamuwa D M Wijekoon H M Choi S S | 2006 | IEEE Transaction on In- dustrial Electronics2006，53，5： | 1 |
| 12 | Effects of diabetes and insulin on betaine-homocysteine S-methyltransferase expression in rat liver显示文摘 | Ratnam S Wijekoon EP Hall B | 2006 | Am J Physiol Endocrinol Metab2006，290，5： | 1 |
| 13 | Homocysteine metabolism in diabetes显示文摘 | Wijekoon EP Brosnan ME Brosnan JT | 2007 | Biochem Soc Trans2007，35，5： | 1 |
| 14 | Homocysteine metabolism in ZDF ( type 2 ) diabetic rats 显示文摘 | Wijekoon EP Hall B Ratnam S | 2005 | Diabetes2005，54，11： | 1 |
| 15 | Atmospheric pressure ionization LC-MS-MS determination of urushiol congeners 显示文摘 | DRAPER W M WIJEKOON D MICHAEL M | 2002 | Journal of Agriculture and Food Chemistry2002，50，7： | 1 |
| 16 | Homocysteine metabolism in diabetes显示文摘 | Wijekoon EP Brosnan ME Brosnan JT | 2007 | Biochem Soc Trans2007，35，5： | 1 |
| 17 | Interline dynamic voltage restorer: a novel and economical approach for multiline power quality compensation显示文摘 | Mahinda Vilathgamuwa D Wijekoon H M Choi S S | 2004 | IEEE Transactions on Industry Applications2004，40，6： | 1 |
| 18 | Homoysteine metabolism in ZDF ( type 2) diabetic rats显示文摘 | Wijekoon EP Hall B Ratnam S | 2005 | Diabetes2005，54，： | 1 |
| 19 | Biodiversity associated with an irrigated rice agro-ecosystem in Sri Lanka显示文摘 | C.N.B. Bambaradeniya J.P. Edirisinghe D.N. Silva C.V.S. Gunatilleke K.B. Ranawana S. Wijekoon | 2004 | Biodiversity and Conservation2004，，9： | 1 |
| 20 | Mean square error matrix superiority of estimator sunder linear restrictions and misspecification显示文摘 | Wijekoon P and Trenkler G | 1989 | Ecomics Letters1989，30，： | 1 |
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