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Phosphate mineral accumulation in lake sediment to form a secondary phosphate source: A case study in lake sediment around Eppawala Phosphate Deposit(EPD) in Sri Lanka

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International journal of Sediment Research 2021年第4期36卷 532-541页

作者： Nimila Dushyantha Nalin Ratnayake Hemalal Panagoda Chulantha jayawardena Amila Sandaruwan Ratnayake Department of Earth Resources Engineering Faculty of Engineering University of Moratuwa Ocean University 3. Department of Applied Earth Sciences Faculty of Applied Sciences Uva Wellassa University

Global phosphorus scarcity will result in significant consequences for future food security with the depletion of current phosphate reserves. Therefore, exploration of new phosphorus sources is essential to address future phosphorus scarcity. The current study investigated the geochemical potential of lake sediment around the Eppawala Phosphate Deposit(EPD) in Sri Lanka to be used as a low-grade phosphorus source for agricultural purposes. jaya-Ganga is a man-made water canal that drains through the EPD feeding three lakes, namely, upstream Ihalahalmilla Lake and Koon Lake, and downstream Kiralogama Lake with respect to the EPD. Three cores(cores A, B, and C) were collected from the above three lakes and major oxides and minerals distributions along the cores were analyzed. Notable high enrichment of phosphorus pentoxide(P2O5) content and high P2O5solubility values were measured in the top 60 cm sediment layer in Core B and throughout the Core C compared to the Core A. This high enrichment of P2O5content in the same sediment columns were confirmed by the comparison with the Upper Continental Crust(UCC) values and literature survey. According to the X-ray Diffraction(XRD)results, phosphate minerals, such as fluorapatite, crandallite, and millisite were abundantly found in the same sediment columns. Therefore, these phosphate minerals can be considered as pathfinding minerals for soluble phosphates in sediment cores. Thus, sediment with high P2O5content and high solubility in downstream Kiralogama Lake showed the potential for application of these sediments as a direct phosphate source in agricultural purposes. Furthermore, the current study has introduced a new area of interest, i.e., soil and sediments around major phosphate deposits, for the exploration of new phosphate sources to meet future phosphorus demand.

关键词： Phosphorus Sediment cores Major oxides Solubility Phosphate minerals

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利用双抛物线型土壤蓄水容量曲线对新安江产流模型的改进

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水利学报 2002年第12期33卷 38-43页

作者：周买春 A.W.jayawardena 广东省水利水电科学研究所广东广州510610 香港大学土木工程系

提出了双抛物线型土壤蓄水容量关系曲线,对新安江模型产流计算公式进行了改进。利用珠江三角洲不同土壤水分状态的多年水文资料,对改进前和改进后新安江模型产流计算公式进行了比较。结果表明,双抛物线型关系曲线能够代表流域中多种土... 详细信息

提出了双抛物线型土壤蓄水容量关系曲线,对新安江模型产流计算公式进行了改进。利用珠江三角洲不同土壤水分状态的多年水文资料,对改进前和改进后新安江模型产流计算公式进行了比较。结果表明,双抛物线型关系曲线能够代表流域中多种土壤水分状态并存的情况,包括湿润、干燥以及从湿润到干燥过渡阶段,而原单抛线型的模型则是双抛物线的一个特例,只能反映单一土壤水分状态的分布。对于那些发生在湿润季节的暴雨,两种曲线的模拟精度相当,但对于发生在旱季及旱湿过渡时期的暴雨,双抛物线明显优于单抛物线。

关键词：双抛物线型土壤蓄水容量曲线产流抛物线函数

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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

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中华高血压杂志 2018年第12期26卷 1130-1130页

作者： 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

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... 详细信息

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。

关键词：高血压患者随机临床试验抗高血压药物常规治疗血压控制斯里兰卡低剂量疗效差异

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Progress of Pb-Sn Mixed Perovskites for Photovoltaics: A Review

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Energy & Environmental Materials 2022年第2期5卷 370-400页

作者： Rajapakshe Mudiyanselage Indrachapa Bandara Shashini M.Silva Cameron C.L.Underwood K.D.G.Imalka jayawardena Radu A.Sporea S.Ravi P.Silva Advanced Technology Institute Faculty of Engineering and Physical SciencesUniversity of SurreyGuildford Surrey GU27XHUnited Kingdom

Pb-Sn mixed perovskites are becoming increasingly popular as narrowbandgap(1.2–1.3 eV)light absorbers in single-junction perovskite solar cells(PSCs)and as bottom cells for all-perovskite tandem solar cells,for highefficiency,low-cost,lightweight,roll-to-roll printable photovoltaic(PV)*** the first report of planar Pb:Sn mixed PSCs in 2014,the power conversion efficiencies(PCE)have increased from 10%to 21%by the end of 2020 with an exponential growth in research conducted in this *** much effort,the performance and stability of Pb-Sn mixed PSCs are still limited,which constrains their long-term use in all-perovskite tandem *** review highlights the avenues explored in improving different aspects of Pb-Sn mixed PSCs and provides a comprehensive discussion of the interdependent factors affecting the device *** includes compositional engineering of the perovskite crystal,absorber layer fabrication and crystallization methods,bandgap tuning,Sn4+reduction,and surface passivation of the absorber layer,as well as the selection of interlayers and electrodes of the final PSC.

关键词： inorganic-organic hybrids lead-tin mixed perovskites perovskites photovoltaics solution-processed

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数值地形图的生成及其水文地貌特征评价

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水利学报 2002年第2期33卷 71-74,78页

作者：周买春黎子浩 A.W.jayawardena 广东省水利水电科学研究所广东广州510610 香港大学土木工程系

数值地形图 (DEM)是利用地理信息系统 (GIS)进行流域水文模拟的基础 ,其精度直接影响模拟结果 .在没有现成的数值地形图时 ,应用人员往往利用传统的地形图来生成它 .本文分别采用Arc Info地理信息系统软件提供的哈奇逊法和不规则三角网... 详细信息

数值地形图 (DEM)是利用地理信息系统 (GIS)进行流域水文模拟的基础 ,其精度直接影响模拟结果 .在没有现成的数值地形图时 ,应用人员往往利用传统的地形图来生成它 .本文分别采用Arc Info地理信息系统软件提供的哈奇逊法和不规则三角网五次插值法 ,对一个实验流域的高程取样点进行插值 ,生成了 4种不同的数值地形图 ,从凹洼分布、流域界定、河网提取、地面坡度和地形指数、以及地面径流汇流等方面 ,对它们的水文地貌精度进行了比较 .结果表明 ,两种方法都能生成由高程点群所反映的地形 ,然而由于哈奇逊法能够结合流域的河网结构及其具有物理基础的水文地貌加强法来处理凹洼问题。

关键词：地理信息系统流域水文模拟数值地形图水文地貌

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Sympathetic dysfunction as a cause for hypotension in dengue shock syndrome

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Chinese Medical journal 2012年第20期125卷 3757-3758页

作者： jeevagan Vijayabala Malith Attapaththu Priyankara jayawardena garath Gamini de Silva Godwin Constantine University Medical Unit National Hospital of Sri Lanka Sri Lanka Asiri Hospital Colombo Sri Lanka

Dengue is an important mosquito-borne disease, caused by one of the four serotypes of dengue *** to the reports from the World Health Organization, every year 50 to 100 million infections occur, including 500 000 dengue hemorrhagic fever cases and 22 000 deaths, mostly among children.1 The main features of severe infection are hypotension, fluid leak and shock. Management of dengue shock syndrome and its pathophysiology are not fully understood. We reported two patients with dengue who developed hypotension without considerable fluid accumulation in the third space and explaining an alternative cause for hypotension in these patients.

关键词： dengue shock syndrome," hypotension sympathetic dysfunction

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Thailand’s amazing diversity:up to 96%of fungi in northern Thailand may be novel

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Fungal Diversity 2018年第6期93卷 215-239页

作者： Kevin D.Hyde Chada Norphanphoun jie Chen Asha j.Dissanayake Mingkwan Doilom Sinang Hongsanan Ruvishika S.jayawardena Rajesh jeewon Rekhani H.Perera Benjarong Thongbai Dhanushka N.Wanasinghe Komsit Wisitrassameewong Saowaluck Tibpromma Marc Stadler Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Instituto de Ecologı́a A.C.CP 91070 XalapaVeracruzMexico World Agro Forestry Centre East and Central Asia132 Lanhei RoadKunming 650201YunnanPeople’s Republic of China Department of Biology Faculty of ScienceChiang Mai UniversityChiang Rai 50200Thailand Shenzhen Key Laboratory of Microbial Genetic Engineering College of Life Sciences and OceanographyShenzhen UniversityShenzhenPeople’s Republic of China Shenzhen Key Laboratory of Laser Engineering College of Optoelectronic EngineeringShenzhen UniversityShenzhenPeople’s Republic of China Department of Health Sciences Faculty of ScienceUniversity of MauritiusReduit 80837Mauritius National Science Technology and Innovation Policy Office Bangkok 10330Thailand Department of Microbial Drugs and German Centre for Infection Research(DZIF) partner site Hannover-BraunschweigHelmholtz Centre for Infection ResearchInhoffenstrasse 738124 BrunswickGermany

Fungi have been often neglected,despite the fact that they provided penicillin,lovastatin and many other important *** are an understudied,but essential,fascinating and biotechnologically useful group of *** study of fungi in northern Thailand has been carried out by us since *** studies have been diverse,ranging from ecological aspects,phylogenetics with the incorportation of molecular dating,taxonomy(including morphology and chemotaxonomy)among a myriad of microfungi,to growing novel mushrooms,and DNA-based identification of plant *** this paper,advances in understanding the biodiversity of fungi in the region are discussed and compared with those further *** new species have been inventoried for the region,but many unknown species remain to be described and/or *** example,in the edible genus Agaricus,over 35 new species have been introduced from northern Thailand,and numerous other taxa await *** this relatively well known genus,93%of species novelty is *** the microfungi,which are relatively poorly studied,the percentage of novel species is,surprisingly,generally not as high(55–96%).As well as Thai fungi,fungi on several hosts from Europe have been also *** with the well studied European microfungi an astounding percentage of new taxa(32–76%)have been *** work is just a beginning and it will be a daunting task to document this astonishingly high apparent novelty among fungi.

关键词： Agaricus Amanita Colletotrichum Cornus Fungal diversity Pandanaceae Rosaceae Rosa Teak fungi

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北京市葡萄炭疽病病原菌的分子鉴定

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植物保护学报 2018年第2期45卷 393-394页

作者：刘梅 jayawardena R.S. 刘阳邢启凯燕继晔李兴红北京市农林科学院植物保护环境保护研究所北京100097 泰国皇太后大学真菌研究所清莱57100

葡萄是北京市重要的经济作物,葡萄炭疽病是栽培中的常见病害,造成减产10%-20%。近年来,常采用多基因系统发育分析结合形态学特征鉴定该病病原菌,日本（Suzaki,2011）、澳大利亚（Greer et al.,2011）等国家将其鉴定为胶孢炭疽菌Colletot... 详细信息

葡萄是北京市重要的经济作物,葡萄炭疽病是栽培中的常见病害,造成减产10%-20%。近年来,常采用多基因系统发育分析结合形态学特征鉴定该病病原菌,日本（Suzaki,2011）、澳大利亚（Greer et al.,2011）等国家将其鉴定为胶孢炭疽菌Colletotrichum gloeosporioides和（或）尖孢炭疽菌***.

关键词：葡萄炭疽病病原菌北京市分子鉴定

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中国四个线虫草新种

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菌物学报 2024年第3期43卷 14-37页

作者：杨雨 jayawardena Ruvishika S 卢永仲谢述琼田兴国王家萍周思旋肖沅嫔贵州理工学院食品药品制造工程学院贵州贵阳550003 泰国皇太后大学真菌研究卓越中心泰国清莱57100 泰国皇太后大学科学学院泰国清莱57100 贵州省农业科学院畜牧兽医研究所贵州贵阳550002

线虫草属是线虫草科中最著名的属,以其具有显著药用价值的众多昆虫病原真菌而闻名。尽管该属已报道了许多物种,但该属的多样性仍然是个谜。在本研究中,采用综合方法对在中国采集的4个线虫草属物种进行分类鉴定,包括多基因系统发育分析(... 详细信息

线虫草属是线虫草科中最著名的属,以其具有显著药用价值的众多昆虫病原真菌而闻名。尽管该属已报道了许多物种,但该属的多样性仍然是个谜。在本研究中,采用综合方法对在中国采集的4个线虫草属物种进行分类鉴定,包括多基因系统发育分析(ITS、SSU、LSU、RPB1、RPB2和TEF1α)以及形态学评估,确定了它们的分类地位。本研究为这些新发现的物种提供了图解描述和分类讨论,有助于我们更深入地了解线虫草属丰富的物种多样性。

关键词：昆虫病原菌线虫草科系统发育学形态学新分类单元

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Fungal diversity notes 840–928:micro-fungi associated with Pandanaceae

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Fungal Diversity 2018年第6期93卷 1-160页

作者： Saowaluck Tibpromma Kevin DHyde Eric H.C.McKenzie Djayarama Bhat Alan j.L.Phillips Dhanushka N.Wanasinghe Milan C.Samarakoon Ruvishika S.jayawardena Asha j.Dissanayake Danushka S.Tennakoon Mingkwan Doilom Rungtiwa Phookamsak Alvin M.C.Tang jianchu Xu Peter EMortimer Itthayakorn Promputtha Sajeewa S.N.Maharachchikumbura Samiullah Khan Samantha C.Karunarathna Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China Centre of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Manaaki Whenua Landcare Research Private Bag 92170AucklandNew Zealand No.128/1-j Azad Housing SocietyCurcaGoa VelhaIndia Division of Applied Science College of International EducationThe Hong Kong Baptist UniversityHong KongSARPeople’s Republic of China Department of Biology Faculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Environmental Science Research Centre Faculty of ScienceChiang Mai UniversityChiang Rai 50200Thailand Universidade de Lisboa Faculdade de CieˆnciasBiosystems and Integrative Sciences Institute(BioISI)Campo Grande1749-016 LisbonPortugal Department of Crop Sciences College of Agricultural and Marine SciencesSultan Qaboos UniversityPO Box 34123 AlkhoudOman College of Animal Science and Technology Yunnan Agriculture UniversityKunmingPeople’s Republic of China

This paper provides illustrated descriptions of micro-fungi newly found on Pandanaceae in China and *** fungi are accommodated in 31 *** taxa described include a new family,seven new genera,65 new species,16 previously known species.A new family:Malaysiascaceae(Glomerellales).New genera are Acremoniisimulans(Plec-tosphaerellaceae),Pandanaceomyces,Pseudoachroiostachy(Nectriaceae),Pseudohyaloseta(Niessliaceae),Pseudoor-natispora(Stachybotriaceae)and Yunnanomyces(Sympoventuriaceae).New species are Acremoniisimulans thailandensis,Beltrania krabiensis,Beltraniella pandanicola,***,Canalisporium krabiense,***,Clonostachys krabiensis,Curvularia chonburiensis,***,***,***,Cylindrocladiella xishuangbannaensis,Dictyochaeta pandanicola,Dictyocheirospora nabanheensis,***,***-sis,Dictyosporium appendiculatum,***,***,***,***,Distoseptispora thailandica,***,Helicoma freycinetiae,Hermatomyces biconisporus,Lasiodiplodia chonburiensis,***,Lasionectria krabiense,Menisporopsis pandanicola,Montagnula krabiensis,Musicillium pandanicola,Neofusicoccum pandanicola,Neohelicomyces pandanicola,Neooccultibambusa thailandensis,Neopestalotiopsis chiang-maiensis,***,***,Pandanaceomyces krabiensis,Paracylindrocarpon nabanheensis,***-danicola,***,Parasarcopodium hongkongensis,Pestalotiopsis krabiensis,***,Polyplosphaeria nabanheensis,***,***,Pseudoachroiostachys krabiense,Pseu-doberkleasmium pandanicola,Pseudochaetosphaeronema pandanicola,Pseudohyaloseta pandanicola,Pseudoornatispora krabiense,Pseudopithomyces pandanicola,Rostriconidium pandanicola,Sirastachys phangngaensis,Stictis pandanicola,Terriera pandanicola,Thozetella pandanicola,Tubeufia freycinetiae,***,***,Vermiculariopsiella hongkongensis,Volutella krabiense,*** a

关键词： 65 new taxa Ascomycota Dothideomycetes Freycinetia Lecanoromycetes Leotiomycetes Pandanus Saprobic Sordariomycetes

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