Zobrazeno 1 - 10
of 122
pro vyhledávání: '"A. R. Wickramasinghe"'
Autor:
Nilanga Nishad, S. A. Hewage, K. Arulmoly, M. S. Amaratunge, J. de Silva, K. T. A. A. Kasturiratne, P. K. Abeysundara, A. R. Wickramasinghe
Publikováno v:
Current Gerontology and Geriatrics Research, Vol 2019 (2019)
Cataract is still the leading cause of blindness. Many government institutes and voluntary organizations in Sri Lanka are providing free treatment services to patients with cataract. Still people are not patronizing the available free services; thus
Externí odkaz:
https://doaj.org/article/4487f77de47443a5bc54953f73457628
Publikováno v:
Bone & Joint Open, Vol 4, Iss 4, Pp 241-249 (2023)
Aims: The aims were to assess whether preoperative joint-specific function (JSF) and health-related quality of life (HRQoL) were associated with level of clinical frailty in patients waiting for a primary total hip arthroplasty (THA) or knee arthropl
Externí odkaz:
https://doaj.org/article/8a3e10a0ef6e425ea3b76f9be676e9fe
Publikováno v:
IEEE Access, Vol 10, Pp 119706-119721 (2022)
This paper proposes a general methodology for the development of power system models suitable for distributed real-time simulations (D-RTS) based on topology, simulator interfaces and data exchange. D-RTS have risen as functional alternatives that ca
Externí odkaz:
https://doaj.org/article/99207c56237844b18950085f535597bc
Autor:
Yumeng Tian, Harith R. Wickramasinghe, Pingyang Sun, Zixin Li, Josep Pou, Georgios Konstantinou
Publikováno v:
IEEE Access, Vol 9, Pp 158155-158166 (2021)
Hybrid modular multilevel converters (HMMC) address the DC-fault blocking limitations of the half-bridge submodules (HB-SMs) of the standard MMC by combining HB-SMs with full-bridge submodules (FB-SMs). In order to improve the overall conversion effi
Externí odkaz:
https://doaj.org/article/c7263deba3ec45e391a6bb21546de922
Autor:
Shuai Wang, Long Jing, Yuming Zhao, Harith R. Wickramasinghe, Xuezhi Wu, Georgios Konstantinou
Publikováno v:
IEEE Access, Vol 8, Pp 162569-162580 (2020)
The continuous growth of Renewable Energy (RE) in the grid reduces system inertia and damping, impacting the overall stability of power systems. To alleviate this issue, “virtual” inertia can be provided by power electronics converters. Under thi
Externí odkaz:
https://doaj.org/article/ebd1036ba46644cf91533c44e761676c
Publikováno v:
IEEE Transactions on Power Delivery. 37:993-1003
Challenges in long distance power transmission and large-scale integration of renewable energy systems drive the development of high-voltage direct current (HVDC) systems. HVDC systems can be configured as combinations of line-commutated converters (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38a028b92003177a8430504dd1c94aad
https://doi.org/10.1109/tpwrd.2021.3075303
https://doi.org/10.1109/tpwrd.2021.3075303
Publikováno v:
IEEE Access. 10:119706-119721
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19bdf9452c855ee0d676d1a9285bb0d0
https://doi.org/10.1109/access.2022.3216596
https://doi.org/10.1109/access.2022.3216596
Autor:
Huaitian Zhang, Long Jing, Xuezhi Wu, Jiuchun Jiang, Harith R. Wickramasinghe, Georgios Konstantinou
Publikováno v:
High Voltage (2018)
Development of power electronics transformers (PETs) has made dc distribution and hybrid ac/dc systems a competitive solution for future network expansion. This study focuses on the functions of a multiport PET interfacing medium-voltage and low-volt
Externí odkaz:
https://doaj.org/article/bdddb7dc395c44ceb16a452700fbea5b
Autor:
Nick D. Clement, Neil R. Wickramasinghe, John M. Bayram, Katie Hughes, Erlend Oag, Nicholas Heinz, Ewen Fraser, James G. Jefferies, Graham F. Dall, Andy Ballantyne, Paul J. Jenkins
Publikováno v:
The bonejoint journal. (11)
Aims The primary aim of this study was to assess whether patients waiting six months or more for a total hip (THA) or knee (KA) arthroplasty had a deterioration in their health-related quality of life (HRQoL). Secondary aims were to assess changes in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::169b394fa74c67952164df8d4bc160e3
https://pubmed.ncbi.nlm.nih.gov/36317352
https://pubmed.ncbi.nlm.nih.gov/36317352
Publikováno v:
IEEE Transactions on Industrial Electronics. 68:5497-5506
Arm inductances and the operation of two arms of a phase leg in an alternate arm converter (AAC) can lead to hard-switching of the director switches (DSs) during steady-state operation, increasing voltage stresses across the DSs. The DS voltage stres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::382ad95dc67531162f7d4ba6d07d0681
https://doi.org/10.1109/tie.2020.2996153
https://doi.org/10.1109/tie.2020.2996153