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CSEE Journal of Power and Energy Systems 2021年第3期7卷 497-509页

作者： Sathsara Abeysinghe Muditha abeysekera Jianzhong Wu Mahesh Sooriyabandara School of Engineering Cardiff UniversityCardiff CF243AAUnited Kingdom Toshiba-Bristol Research and Innovation Laboratory Bristol BS14ND.United Kingdom

An increasing amount of low carbon technologies(LCT)such as solar photovoltaic,wind turbines and electric vehicles are being connected at medium and low voltage levels to electric power *** support high-level decision-making processes,the impacts of the LCTs on large numbers of different types(e.g.,rural,suburban,urban)of distribution networks need to be fully understood and ***,detailed modeling of large numbers of real-world networks is challenging for two ***,access to real-world network data is limited,and second,cleaning the data requires a significant amount of time,even before modeling of the *** paper offers a novel systematic methodology aimed at identifying and quantifying the key electrical properties of medium-voltage level distribution *** methodology allows for characterizing different types(e.g.,suburban,urban)of distribution networks and obtaining'depth'dependent electrical properties of the models of the *** key sets of(electrical)data were used for the *** first set was installed capacities of distribution substations;and the second set was the conductor cross sections of the distribution *** the graph models of real-world networks,'nodes'represent the distribution sub-stations,switchgears,busbars and consumers locations of the network.'Links/edges'stand for the connections between the nodes through distribution *** results of the investigation of the real-world networks showed that,the substation capacities and the conductor cross sections could characterize the electrical properties of suburban and urban type distribution *** resulted probability density functions(PDF)of the electrical properties of suburban and urban type distribution networks have the potential to be directly used in generating realistic distribution network models.

关键词： Electricity distribution networks electrical properties medium voltage synthetic networks statistically-similar networks

Quasi-dynamic Interactions and Security Control of Integrated Electricity and Heating Systems in Normal Operations

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CSEE Journal of Power and Energy Systems 2019年第1期5卷 120-129页

作者： Zhaoguang Pan Jianzhong Wu Hongbin Sun Qinglai Guo Muditha abeysekera Department of Electrical Engineering State Key Laboratory of Power SystemsTsinghua UniversityBeijing 100084China School of Engineering Cardiff UniversityCardiffUnited Kingdom

Coupling between electricity systems and heating systems are becoming stronger,leading to more flexible and more complex interactions between these *** operation of integrated energy systems is greatly affected,especially when security is ***-state analysis methods have been widely studied in recent research,which is far from enough when the slow thermal dynamics of heating networks are ***,an integrated quasi-dynamic model of integrated electricity and heating systems is *** model combines a heating network dynamic thermal model and the sequential steady-state models of electricity networks,coupling components,and heating network *** on this model,a simulation method is proposed and quasi-dynamic interactions between electricity systems and heating systems are quantified with the highlights of transport *** the quasi-dynamic interactions were applied using security control to relieve congestion in electricity *** show that both the transport delay and control strategies have significant influences on the quasi-dynamic interactions.

关键词： Integrated electricity and heating integrated energy system interactions quasi-dynamic security control transport delay

In vitro anti-hyaluronidase activity of Sri Lankan low grown orthodox orange pekoe grade black tea(Camellia sinensis L.)

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Asian Pacific Journal of Tropical Biomedicine 2014年第12期4卷 959-963页

作者： Wanigasekera Daya Ratnasooriya Walimuni Prabhashini Kaushalya Mendis abeysekera Chatura Tissa Dayendra Ratnasooriya Faculty of Allied Health Sciences General Sir John Kothalawala Defence University Herbal Technology Section Industrial Technology Institute363Bauddhaloka MawathaColombo 07Sri Lanka Faculty of Medicine University of Colombo

Objective:To access the anti-hyaluronidase activity of Sri Lankan low grown orthodox orange pekoe（OP） grade black tea with a view to develop an anti-aging skin ***:Five concentrations（0.125,0.250,0.500,1.000 and 2.000 mg/mL） of black tea brew（BTB） were made using a freeze dried sample of Sri Lankan low grown orthodox OP grade black tea which was prepared according to international organization for standardization *** gallate（EGCG） was used as the reference agent（concentrations tested:0.012,0.025,0.050,0.100 and 0.200 mg/mL）.Anti-hyaluronidase activity of BTB and EGCG in vitro were ascertained spectrometrically using hyaluronic acid（from rooster comb）and bovine testicular ***:The results revealed that BTB had moderate[IC50=（1.09±0.12） mg/mL]and dose dependent（r2=0.94） anti-hyaluronidase *** also exhibited dose dependent（r2=0.93,P<0.05） anti-hyaluronidase activity which was superior[IC50=（0.09±0.00） mg/mL]to ***:Sri Lankan low grown orthodox OP gradc black tca has promising antihyaluronidase activity in vitro and has the potential to be used as an anti-aging *** addition,it may prove useful as a beverage in the management of allergy,some joint diseases and cnvenomation.

关键词： Camellia sinensis Orange pekoe Black tea Sri Lankan tea Anti-aging Anti-hyaluronidase Hyaluronic acid

CPAFFC-An Honest Friend of the People of the World

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Voice of Friendship 2004年第4期 29-30页

作者： Indrananda abeysekera (Sri Lanka)

Promoting friendship among countries is promoting honesty among peoples of the world. The CPAFFC not only promotes friendship and mutual understanding between peoples of China and other countries in the world, but also gives great experience to the people for thinking honestly, working honestly and implementing international relations honestly. The CPAFFC has rendered valuable service to promote genuine friendship all over the world during the past 50 years.

关键词： thinking mutual promoting valuable visited lieve d

PRESENT STATUS AND FUTURE RESEARCH TRENDS OF WEED MANAGEMENT IN RICE CULTIVATION IN SRI LANKA

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PRESENT STATUS AND FUTURE RESEARCH TRENDS OF WEED MANAGEMENT...

Antioxidant potential of brans of twenty-nine red and white rice (Oryza sativa L.) varieties of Sri Lanka

The ⅩⅤth International Plant Protection Congress

作者： A.S.K.abeysekera Rice Research and Development Institute Batalagoda Ibbagamuwa

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Journal of Coastal Life Medicine 2017年第11期5卷 480-485页

作者： Walimuni Kanchana Subhashini Mendis abeysekera Udawaththa Kankanamge Don Sahan Suganda Gunasekara Sirimal Premakumara Galbada Arachchige Walimuni Prabhashini Kaushalya Mendis abeysekera Department of Agricultural Technology Faculty of TechnologyUniversity of ColomboSri Lanka Food Technology Section(FTS) Modern Research&Development Complex(MRDC)Industrial Technology Institute(ITI)503AHalbarawa GardensMalabeSri Lanka Herbal Technology Section(HTS) Modern Research and Development Complex(MRDC)Industrial Technology Institute(ITI)503AHalbarawaGardensMalabeSri Lanka

Objective: To evaluate antioxidant properties of brans of twenty-nine red and white rice varieties of Sri Lanka. Methods: Brans of 21 new improved (NI), 2 old improved (OI) and 6 traditional red and white rice varieties of Sri Lanka were studied for range of antioxidant properties. The studied antioxidant properties included total polyphenolic content (TPC), ferric reducing antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity and 1,1-diphenyl-2-picrylhydrazine (DPPH) radical scavenging activity in vitro. Bran of black rice variety from Korea was also studied for the same antioxidant properties for comparison. Results: Results exhibited significantly high ABTS and DPPH radical scavenging activities and 10, 7 and 2.5 fold greater TPC, FRAP and ORAC activities in brans of red rices (BRRs) compared to brans of white rices irrespective of NI, OI and traditional rice types. Among BRRs traditional varieties had greater ABTS and DPPH radical scavenging activities and 1.7, 1.3 and 1.2 fold respectively greater TPC, FRAP and ORAC in contrast to NI red rices. Traditional red rice varieties, Kalu Heeneti (TPC and ORAC), Pachchaperumal (TPC and DPPH) and Kurulu Thuda (DPPH) and OI red rice variety H4 (FRAP) exhibited the highest activities for the antioxidant properties studied. Further, these varieties had significantly high activities compared to black rice. Conclusions: In conclusion, BRRs especially traditional red rices had greater antioxidant properties and consumption may be useful in managing various chronic diseases.

关键词： Antioxidant properties Rice bran Sri Lankan rice Red and white rice New improved,old improved and traditional rice

SELECTION OF STUFF THRESHOLD MODULATION DITHER SEQUENCES FOR KNOWN SYN-DES OPERATING CONDITIONS

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SELECTION OF STUFF THRESHOLD MODULATION DITHER SEQUENCES FOR...

In vitro pancreatic lipase,cholesterol esterase and cholesterol micellization inhibitory activity of Sri Lankan low grown orthodox Orange Pekoe grade black tea(Camellia sinensis L.)

1996 International Conference on Communication Technology

作者： Saman S.abeysekera Antonio Cantoni S.S.abeysekera Research FellowA.CantoniDirectorAustralian Telecommunications Research InstituteCurtin University of TechnologyGPO Box U 1987Perth WA 6001AUSTRALIA

＜正＞The clock rate adaptation circuits of network synchronizers work by controlling the output data rate by pulse *** technique of Stuff Threshold Modulation（ST-Mod）is usually used to reduce the waiting time jitter resulting due to pulse *** this paper,for a given set of data transmission conditions,the selection of a suitable ST-Mod dither sequence is *** has been shown previously that if the ST-Mod sequence is selected as a saw-tooth sequence then it is possible to choose a dither sequence which is optimum for the given operating *** this paper,it is shown that using either a random sequence or a modified wave sequence it is possible to obtain near optimal filter performances for given synchronizer-desynchronizer（SYN-DES） characteristics.

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Journal of Coastal Life Medicine 2015年第7期 570-574页

作者： Wanigasekera Daya Ratnasooriya Walimuni Prabhashini Kaushalya Mendis abeysekera Chatura Tissa Dayendra Ratnasooriya Faculty of Allied Health Sciences General Sir John Kothalawala Defence UniversityRatmalanaSri Lanka Department of Zoology University of ColomboColombo-03Sri Lanka Herbal Technology Section Industrial Technology Institute(ITI)363Bauddhaloka MawathaColombo 07Sri Lanka Faculty of Medicine University of ColomboColombo-08Sri Lanka

Objective:To access the pancreatic lipase,cholesterol esterase and cholesterol micellization inhibitory activities of Sri Lankan low grown orthodox Orange Pekoe grade black tea made from uppermost tender leaves and unopened buds of Camellia sinensis ***:Black tea brew(BTB)was made according to International Organization for Standardization 3103 specifications and concentrations of BTB tested were 37.5,75.0,150.0,300.0 and 600.0μg/mL for antilipase and anti-cholesterol esterase assays and 0.25,0.50 and 1.00μg/mL for cholesterol micellization inhibitory ***:The results showed that BTB of Sri Lankan low grown orthodox Orange Pekoe grade black tea has marked and dose-dependent(r^(2)=0.95)cholesterol micellization inhibitory activity in vitro comparable to epigallocatechin gallate,the reference drug *** contrast,BTB had only mild but dose-dependent(r^(2)=0.94)inhibitory activity against pancreatic lipase and weak inhibitory effect(up to 13.17%)on pancreatic cholesterol ***:It is concluded that consumption of BTB of Sri Lankan low grown orthodox Orange Pekoe grade tea as a beverage may be a useful strategy in the management of hyperlipidaemia.

关键词： Black tea Orange Pekoe Antilipase Anti-cholesterol esterase Cholesterol micellization Hyperlipidaemia Camellia sinensis

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斯里兰卡的清洁生产

产业与环境 2003年第3期25卷 52-55页

作者： Nihal abeysekera 刘岩 Chairman National Cleaner Production CentreandVice ChairmanAsia Pacific Round Table for Cleaner Production(APRCP)Level3No.53.Vauxhall LanePOBox2015Colombo2Sri Lanka

本文介绍了斯里兰卡一些关心清洁生产的机构和项目.这些机构之一,中小企业开发商(SMED)成立于1989年,负责在产业和服务部门发展管理和技术能力.自1997年以来,它已经在引导了遍及斯里兰卡的研讨会和车间,促进清洁生产及有关思想,它也支... 详细信息

本文介绍了斯里兰卡一些关心清洁生产的机构和项目.这些机构之一,中小企业开发商(SMED)成立于1989年,负责在产业和服务部门发展管理和技术能力.自1997年以来,它已经在引导了遍及斯里兰卡的研讨会和车间,促进清洁生产及有关思想,它也支持其它有关清洁生产的项目.SMED已经被选定为在2002年行动计划的斯里兰卡国家清洁生产中心的最合适的主办机构.企业发展、工业政策和投资促进部是SMED的政府对应部门.

关键词：斯里兰卡清洁生产经济发展自然资源可持续发展