2015 Moratuwa Engineering Research Conference (MERCon)最新文献

CDME — crowd-sourced data mapping engine system that analyzes, mapps & publishes crowd-sourced data on enviorenment facts CDME -众包数据映射引擎系统，分析，mapps和发布环境事实的众包数据

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-06-01 DOI: 10.1109/MERCON.2015.7112358

S. Ruwanpathirana, I. Perera

引用次数: 1

Multi-beam 8×8 RF aperture digital beamformers using multiplierless 2-D FFT approximations 多波束8×8使用无乘法器二维FFT近似的射频孔径数字波束形成器

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112356

Sunera Kulasekera, A. Madanayake, Chamicth Wijenayake, F. M. Bayer, Dora Suarez, R. Cintra

引用次数: 4

Low cost fiber optic teaching aid with wide dynamic range optical power meter and bandwidth analyzer 低成本光纤教具，配有宽动态范围光功率计和带宽分析仪

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112353

Y. Samarawickrama, R. P. Thilakumara

引用次数: 1

The effectiveness of a watersoluble synthetic acrylic polymer in enhancing reinforcing action of silica in carboxylated acrylonitrile butadiene rubber latex 水溶性合成丙烯酸聚合物对羧化丙烯腈-丁二烯胶乳中二氧化硅增强作用的影响

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112352

L. Liyanaarachchi, N. Liyanage

{"title":"The effectiveness of a watersoluble synthetic acrylic polymer in enhancing reinforcing action of silica in carboxylated acrylonitrile butadiene rubber latex","authors":"L. Liyanaarachchi, N. Liyanage","doi":"10.1109/MERCON.2015.7112352","DOIUrl":"https://doi.org/10.1109/MERCON.2015.7112352","url":null,"abstract":"Carboxylated acrylonitrile butadiene rubber (XNBR) latex was filled with surface modified precipitated silica. Surface modification of silica was affected in an aqueous medium by reacting with a synthetic polymer (SP) containing both hydrophilic and hydrophobic groups. The effectiveness of SP in enhancing reinforcing action of silica in XNBR latex films was evaluated through investigation of mechanical properties of vulcanized latex films cast from XNBR latex compounds filled with modified silica over a range of 5 to 20 phr loadings. Tear strength, which is an important mechanical property in certain latex based products like gloves, of modified silica filled cast films was found to be improved in comparison with that of unmodified silica filled cast films. Tear properties of cast films were continued to increase within the range of filler loadings investigated. An optimization of tensile strength was observed at 15phr filler loading in films containing modified fillers and it exceeds the tensile strength of unmodified filler added films with same loading. Morphological studies performed by scanning electron microscopy illustrated that a better distribution of modified filler particles within the XNBR matrix has occurred which may be a consequence of the discouragement of filler aggregation with surface modification. Surface modification of silica has improved the reinforcement action on XNBR.","PeriodicalId":373492,"journal":{"name":"2015 Moratuwa Engineering Research Conference (MERCon)","volume":"25 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116833518","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: 1

Effectiveness of scrum for offshore software development in Sri Lanka 斯里兰卡离岸软件开发的scrum有效性

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112364

R. K. Chandana Ranasinghe, I. Perera

引用次数: 3

An efficient distributed data correspondence scheme for multi-robot relative localization 一种高效的多机器人相对定位分布式数据通信方案

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112329

O. de Silva, G. Mann, R. Gosine

{"title":"An efficient distributed data correspondence scheme for multi-robot relative localization","authors":"O. de Silva, G. Mann, R. Gosine","doi":"10.1109/MERCON.2015.7112329","DOIUrl":"https://doi.org/10.1109/MERCON.2015.7112329","url":null,"abstract":"This research addresses the problem of relative localization within a robot network possessing relative measurements between robots. The problem of correspondence is inherent to most multi-robot relative sensing methods, such as LiDAR, RADAR and vision based solutions. Multi-sensor multi-target tracking approaches addresses the problem of correspondence, when good prioris for initial poses of the sensing platforms are assumed. However the multi-robot relative localization problem differs from the classical multi-target tracking scenario due to; a) the unavailability of initial poses of sensing platforms, b) the existence of mutual measurements between the sensing platforms, and c) the measurement set being mixed with both known and unknown correspondences. To address these specific characteristics of multi-robot systems, this study proposes a distributed data correspondence architecture which performs multi-hypothesis estimation of the robot states. The proposed architecture is implemented on a multi-robot relative sensor configuration which possess range measurements with known data correspondence and bearing measurements with unknown data correspondence. The proposed distributed multi-robot localization method is capable of addressing measurement correspondence, noise, and measurement clutter effectively, while possessing inherent initialization and recovery capability from unknown poses.","PeriodicalId":373492,"journal":{"name":"2015 Moratuwa Engineering Research Conference (MERCon)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131544933","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 techno-economic analysis for an integrated solar PV/T system with thermal and electrical storage — Case study 集成太阳能光伏/T系统的技术经济分析-案例研究

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112342

A. U. C. D. Athukorala, W. Jayasuriya, S. Ragulageethan, M. Sirimanna, R. A. Attalage, A. T. D. Perera

{"title":"A techno-economic analysis for an integrated solar PV/T system with thermal and electrical storage — Case study","authors":"A. U. C. D. Athukorala, W. Jayasuriya, S. Ragulageethan, M. Sirimanna, R. A. Attalage, A. T. D. Perera","doi":"10.1109/MERCON.2015.7112342","DOIUrl":"https://doi.org/10.1109/MERCON.2015.7112342","url":null,"abstract":"A hybrid photovoltaic/thermal (PV/T) system is having the capability to convert solar energy to both electricity and thermal energy simultaneously and these systems can use to accomplish the energy demand of buildings. Performance analysis of such systems becomes essential to design PV/T systems matching with the operating conditions. It is essential to extend the energy flow analysis used in this regard considering economic limitations especially for urban applications. In this study a practical method to accomplish the energy demand of a building from a PV/T system is proposed and evaluated through a thermo-economic model. The performance of the PV/T collector is analyzed under different operating conditions in Sri Lanka. The responses of energy storage and local grid according to demand variations of the building are evaluated considering the economic aspects. Life cycle cost of the PV/T system is computed to assess the economic viability of harnessing energy from solar energy. Furthermore, the capability of deploying PVT technique and the potential to harvest solar energy in Sri Lanka is evaluated through conducting case studies for different locations.","PeriodicalId":373492,"journal":{"name":"2015 Moratuwa Engineering Research Conference (MERCon)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114774003","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: 18

Bio-methane adsorption by activated carbon: Understanding the potential via characterization of Sri Lankan activated carbon 活性炭吸附生物甲烷:通过斯里兰卡活性炭的表征了解其潜力

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112310

H. Herath, A. D. de Alwis

{"title":"Bio-methane adsorption by activated carbon: Understanding the potential via characterization of Sri Lankan activated carbon","authors":"H. Herath, A. D. de Alwis","doi":"10.1109/MERCON.2015.7112310","DOIUrl":"https://doi.org/10.1109/MERCON.2015.7112310","url":null,"abstract":"There is growing global interest on bio-methane as a vehicular fuel and Europe Union (EU) has stated that this as a best well-to-wheel fuel. Commercialization of bio-methane under atmospheric conditions is limited due to its requirement of higher storage capacity. Compressed bio-methane systems have been currently commercialized in Europe in order to increase its low energy density however the process requires higher capital and maintenance costs. Thus, adsorbed bio-methane is suggested as a better alternative to store methane under low pressure conditions & activated carbon (AC) has shown promise as a methane adsorbent. This study is based on identifying the potential absorptivity of bio-methane into commercially available AC in Sri Lanka. The paper presents the pathway envisage in this task. Two types of commercial AC samples as granular & pelletize forms have been used from supplier HAYCARB for the analysis. In this paper, characterization data from the principals is used to investigate the methane uptake potential into commercial AC. Further, the study has been continued in evaluating several developed correlations in literature on linear behaviour of micropore volume of AC to methane uptake & concluded that the linear parameters of micropore volume to methane uptake would vary according to AC properties. Thus a correlation for local AC is important to be developed. Hence, an experimental setup is developed to carry out detailed studies on bio-methane adsorption on commercial AC available in Sri Lanka.","PeriodicalId":373492,"journal":{"name":"2015 Moratuwa Engineering Research Conference (MERCon)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123988261","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: 1

Schema-independent scientific data cataloging framework 独立于模式的科学数据编目框架

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112361

Supun Nakandala, S. Withana, D. Kumarasiri, H. Jayawardena, H. D. Dilum Bandara, S. Perera, S. Marru, Sudhakar Pamidighantam

{"title":"Schema-independent scientific data cataloging framework","authors":"Supun Nakandala, S. Withana, D. Kumarasiri, H. Jayawardena, H. D. Dilum Bandara, S. Perera, S. Marru, Sudhakar Pamidighantam","doi":"10.1109/MERCON.2015.7112361","DOIUrl":"https://doi.org/10.1109/MERCON.2015.7112361","url":null,"abstract":"Modern scientific experiments generate vast volumes of data which are hard to keep track of. Consequently, scientists find it difficult to reuse and share these data sets. We address this problem by developing a schema-independent data cataloging framework for efficient management of scientific data. The proposed solution consists of an agent which automatically identifies new data products and extract metadata from them, as well as a server which indexes the metadata using a NoSQL database and provides a REST API for querying, sharing, and reusing the data sets. The novelty of our solution lies in the pluggable metadata extraction logic, extensible data product generation monitors, use of a NoSQL database, and the ability to dynamically add new metadata fields. The use of Apache Solr as the backend database enables the proposed solution to index and search data products much faster than a solution based on relational databases. For example, our Apache Solr based implementation can resolve full text, sub-string, prefix, and suffix queries 91 %-99 % faster than a MySQL-based implementation.","PeriodicalId":373492,"journal":{"name":"2015 Moratuwa Engineering Research Conference (MERCon)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128163548","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: 1

Appliance-level demand identification through signature analysis 通过签名分析进行设备级需求识别

2015 Moratuwa Engineering Research Conference (MERCon) Pub Date : 2015-04-07 DOI: 10.1109/MERCON.2015.7112323

W. A. K. Dhananjaya, R. Rathnayake, S. Samarathunga, C. Senanayake, N. Wickramarachchi

{"title":"Appliance-level demand identification through signature analysis","authors":"W. A. K. Dhananjaya, R. Rathnayake, S. Samarathunga, C. Senanayake, N. Wickramarachchi","doi":"10.1109/MERCON.2015.7112323","DOIUrl":"https://doi.org/10.1109/MERCON.2015.7112323","url":null,"abstract":"Appliance specific load monitoring is very useful in energy management solutions that are becoming a challenging task with growing energy demand. It facilitates appliance recognition and load monitoring such that optimum resource utilization can be achieved by correct appliance scheduling. In this paper we present a study of non-intrusive load recognition using steady state appliance signatures for identifying commonly used household appliances. Current harmonics, active and reactive power components acquired from data loggers are used as appliance signature in this study. This analysis enables the capability of providing detailed information on appliances in use and consumers could benefit from customized energy management recommendations. Also, suppliers could implement smart metering technology introducing appliance level information as well. We propose algorithms for non-intrusive load recognition using combination of several methods and techniques. It was seen that a higher accuracy of identification could be achieved when a combination of techniques are used rather than using a single technique.","PeriodicalId":373492,"journal":{"name":"2015 Moratuwa Engineering Research Conference (MERCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130228216","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: 3