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Engineer-Journal of the Institution of Engineers Sri Lanka最新文献

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A Critical Evaluation of Streamflow Estimation of an Ungauged Watershed using a Gauged Watershed of Same River Basin – Case of Nilwala River Basin 用同一流域的计量流域对未计量流域的流量估算的关键性评价——以尼尔瓦拉河流域为例
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-09-25 DOI: 10.4038/engineer.v56i3.7605
M. Wickramarachchi, N. T. S. Wijesekera
{"title":"A Critical Evaluation of Streamflow Estimation of an Ungauged Watershed using a Gauged Watershed of Same River Basin – Case of Nilwala River Basin","authors":"M. Wickramarachchi, N. T. S. Wijesekera","doi":"10.4038/engineer.v56i3.7605","DOIUrl":"https://doi.org/10.4038/engineer.v56i3.7605","url":null,"abstract":"Transferring hydrological model parameters of a nearby gauged watershed to an ungauged watershed is being widely practiced to predict streamflow in the ungauged watershed. However, proper conclusions on transferring data from the main to sub-watershed and vice versa need to be established, then only watershed managers can plan where to locate or ensure optimum use of resources when establishing gauging stations. Therefore, the present study aimed to evaluate the performance of spatial transferability by using the Tank Model, which was initially calibrated to daily streamflow from water year 2008/09 to 2017/18 observed at two gauged watersheds in Nilwala River Basin, and then transferred from main to sub-watershed and vice versa. The efficiency of predictions under two parameter transferability scenarios was highly acceptable where the Mean Ratio of Absolute Error (MRAE) values were 0.35-0.39 and, the accuracy of annual water balance was 91.8%-93.3%. Most importantly, the best results were in the intermediate flow regime with an accuracy of 61%-70%. The monthly-scaled streamflow indicated an accuracy of 83%-92%. The present study demonstrated the liability of the Tank Model for successful estimation of daily streamflow with an average accuracy of 63% under spatial parameter transferability thereby with only a single wellmanaged streamflow gauging station, Tank Model can be applied for sustainable water resources management in similar ungauged watersheds of the basin.","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135817766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimating the Effect of Urbanization on Ecological Condition and Urban Thermal Comfort: A Case Study in Colombo, Sri Lanka 城市化对生态条件和城市热舒适的影响——以斯里兰卡科伦坡为例
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7552
T. M. B. M. Senarathna, K. Gamsavi, S. P. Chaminda
{"title":"Estimating the Effect of Urbanization on Ecological Condition and Urban Thermal Comfort: A Case Study in Colombo, Sri Lanka","authors":"T. M. B. M. Senarathna, K. Gamsavi, S. P. Chaminda","doi":"10.4038/engineer.v56i2.7552","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7552","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"9 3 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78267683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cost Effective Reliability Improvements in 33kV/11kV Electricity Distribution Networks – A Case Study in Western Province South 1, CEB, Sri Lanka 33kV/11kV配电网络成本效益可靠性改进——以斯里兰卡CEB西部南1省为例
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7573
W.R.V.G.D.R. Chameera, W. Wijayapala, H. Perera
{"title":"Cost Effective Reliability Improvements in 33kV/11kV Electricity Distribution Networks – A Case Study in Western Province South 1, CEB, Sri Lanka","authors":"W.R.V.G.D.R. Chameera, W. Wijayapala, H. Perera","doi":"10.4038/engineer.v56i2.7573","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7573","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"12 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90853791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancement of the Lateral Performance of RC Columns Using Steel Jacketing: A Numerical Approach 采用钢护套提高钢筋混凝土柱横向性能的数值方法
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7576
Y. G. P. Erange, M. Jenothan, J. Jayasinghe, C. Bandara, A. Dammika
{"title":"Enhancement of the Lateral Performance of RC Columns Using Steel Jacketing: A Numerical Approach","authors":"Y. G. P. Erange, M. Jenothan, J. Jayasinghe, C. Bandara, A. Dammika","doi":"10.4038/engineer.v56i2.7576","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7576","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"93 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76834499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Shear Strength Characteristics of Municipal Solid Waste 城市生活垃圾抗剪强度特性研究
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7575
M. Perera, N. Priyankara
{"title":"Shear Strength Characteristics of Municipal Solid Waste","authors":"M. Perera, N. Priyankara","doi":"10.4038/engineer.v56i2.7575","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7575","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"91 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90266816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Building a Proactive Safety Culture in Tunnel Construction Industry - Sri Lanka 在隧道建造业建立积极的安全文化-斯里兰卡
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7577
S. Seneviratne, G. K. P. Wickramasinghe, R. D. D. Dayawansha
{"title":"Building a Proactive Safety Culture in Tunnel Construction Industry - Sri Lanka","authors":"S. Seneviratne, G. K. P. Wickramasinghe, R. D. D. Dayawansha","doi":"10.4038/engineer.v56i2.7577","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7577","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"17 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73987695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Removal of Manganese and Iron from Groundwater by using Chlorination and Rapid Sand Filtration: A Case Study 氯化法和快速砂滤法去除地下水中锰和铁的研究
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7529
M. Sutharsan, S. P. S. Meegahakumbura, N. S. Miguntanna
{"title":"Removal of Manganese and Iron from Groundwater by using Chlorination and Rapid Sand Filtration: A Case Study","authors":"M. Sutharsan, S. P. S. Meegahakumbura, N. S. Miguntanna","doi":"10.4038/engineer.v56i2.7529","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7529","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"93 3","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72442311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Consequence of Failure of Mid Span Compression Joint on the Kelanitissa-Kolonnawa Line 克兰尼提萨-柯隆纳瓦线跨中压节点破坏后果分析
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7579
J. Lucas, N. Munasinghe
{"title":"A Consequence of Failure of Mid Span Compression Joint on the Kelanitissa-Kolonnawa Line","authors":"J. Lucas, N. Munasinghe","doi":"10.4038/engineer.v56i2.7579","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7579","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"9 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74047629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Three-Dimensional Numerical Simulation for Lateral Distortional Buckling Behaviour of Steel-Concrete Composite Beams 钢-混凝土组合梁侧向扭曲屈曲行为的三维数值模拟
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7574
W. M. A. D. Wijethunge, A. Dammika, C. Bandara, J. Jayasinghe
{"title":"Three-Dimensional Numerical Simulation for Lateral Distortional Buckling Behaviour of Steel-Concrete Composite Beams","authors":"W. M. A. D. Wijethunge, A. Dammika, C. Bandara, J. Jayasinghe","doi":"10.4038/engineer.v56i2.7574","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7574","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"53 1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77467937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A New Constructive Professional Training Guide on Health and Safety Practices for Construction Workers 新建筑工人健康及安全实务专业训练指引
IF 0.3
Engineer-Journal of the Institution of Engineers Sri Lanka Pub Date : 2023-05-16 DOI: 10.4038/engineer.v56i2.7580
M. Kesavan, A. Alagiyawanna
{"title":"A New Constructive Professional Training Guide on Health and Safety Practices for Construction Workers","authors":"M. Kesavan, A. Alagiyawanna","doi":"10.4038/engineer.v56i2.7580","DOIUrl":"https://doi.org/10.4038/engineer.v56i2.7580","url":null,"abstract":"","PeriodicalId":42812,"journal":{"name":"Engineer-Journal of the Institution of Engineers Sri Lanka","volume":"59 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81089905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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