Pub Date : 2016-03-26DOI: 10.1007/978-3-319-27064-7_38
Fengfeng Li, M. Cholette, Lin Ma
{"title":"Reliability Modelling for Electricity Transmission Networks Using Maintenance Records","authors":"Fengfeng Li, M. Cholette, Lin Ma","doi":"10.1007/978-3-319-27064-7_38","DOIUrl":"https://doi.org/10.1007/978-3-319-27064-7_38","url":null,"abstract":"","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"168 1","pages":"397-406"},"PeriodicalIF":0.0,"publicationDate":"2016-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74142025","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}
Pub Date : 2016-03-16DOI: 10.1007/978-3-319-30447-2_7
Zilu Liang, Bernd Ploderer, Mario Alberto Chapa Martell, Takuichi Nishimura
{"title":"A cloud-based intelligent computing system for contextual exploration on personal sleep-tracking data using association rule mining","authors":"Zilu Liang, Bernd Ploderer, Mario Alberto Chapa Martell, Takuichi Nishimura","doi":"10.1007/978-3-319-30447-2_7","DOIUrl":"https://doi.org/10.1007/978-3-319-30447-2_7","url":null,"abstract":"","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"44 1","pages":"83-96"},"PeriodicalIF":0.0,"publicationDate":"2016-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74477473","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}
Pub Date : 2016-03-01DOI: 10.2166/WASHDEV.2016.105
A. Aslam, P. Sevekari
Development of a four hazard-specific toolkit (drought, flood, landslide and chronic kidney diseases of unknown aetiology) for needs and vulnerability assessment in the water, sanitation and hygiene (WASH) sector included community consultations with district, divisional and community stakeholders in four selected districts of Sri Lanka, which are highly prone to the respective hazards. Existing global WASH tools such as sphere and global WASH cluster indicators are contextualized, and the toolkit covers three different displacement scenarios: no displacement, temporary displacement (short and medium term), and camp-based displacement. This toolkit focuses on four key sections of WASH: water supply, sanitation, waste management and control, and hygiene practices and promotion. The toolkit consists of a set of indicators in the areas of WASH that are relevant to the selected scenario in the Sri Lankan context for the specific hazard, a checklist for initial and rapid assessment before and after disasters, and some guide notes for the field works.
{"title":"Needs and vulnerability assessment (NAVA) indicators for specific hazards in the context of Sri Lanka","authors":"A. Aslam, P. Sevekari","doi":"10.2166/WASHDEV.2016.105","DOIUrl":"https://doi.org/10.2166/WASHDEV.2016.105","url":null,"abstract":"Development of a four hazard-specific toolkit (drought, flood, landslide and chronic kidney diseases of unknown aetiology) for needs and vulnerability assessment in the water, sanitation and hygiene (WASH) sector included community consultations with district, divisional and community stakeholders in four selected districts of Sri Lanka, which are highly prone to the respective hazards. Existing global WASH tools such as sphere and global WASH cluster indicators are contextualized, and the toolkit covers three different displacement scenarios: no displacement, temporary displacement (short and medium term), and camp-based displacement. This toolkit focuses on four key sections of WASH: water supply, sanitation, waste management and control, and hygiene practices and promotion. The toolkit consists of a set of indicators in the areas of WASH that are relevant to the selected scenario in the Sri Lankan context for the specific hazard, a checklist for initial and rapid assessment before and after disasters, and some guide notes for the field works.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"2016 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86147540","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}
Pub Date : 2016-02-28DOI: 10.17265/1934-8975/2016.02.001
Selene Pennetta, F. Anglani, J. Barry, Shengzhe Yu
The effect of dust accumulation on CST (concentrated solar thermal) reflectors is to deflect, or scatter, incident light rays missing the receiver with a subsequent power produced loss. Dust fouling is site specific, and the understanding of interactions between different weather and or environmental parameters is crucial for plant profitability. This research intends to provide useful insights on the interaction between the most relevant weather parameters affecting soil accumulation. Results show a significant dependency of dust concentration versus humidity and ambient temperature, as well as a nexus between wind speed and ambient temperature seems to exist. As long as the temperature decreases an increase of humidity and dust concentration occurs. This phenomenon takes place mostly overnight till the first hours of the morning. Therefore, mirror’s reflectance looks extremely affected by dust accumulation because of high humidity rate during the night and dews of early morning. Further investigations are required to validate the hypothesis that, a more effective cleaning activitie to restore plants’ reflectivity are to be carried out during the early morning.
{"title":"A case study on parameters influencing dust accumulation on CSP reflectors","authors":"Selene Pennetta, F. Anglani, J. Barry, Shengzhe Yu","doi":"10.17265/1934-8975/2016.02.001","DOIUrl":"https://doi.org/10.17265/1934-8975/2016.02.001","url":null,"abstract":"The effect of dust accumulation on CST (concentrated solar thermal) reflectors is to deflect, or scatter, incident light rays missing the receiver with a subsequent power produced loss. Dust fouling is site specific, and the understanding of interactions between different weather and or environmental parameters is crucial for plant profitability. This research intends to provide useful insights on the interaction between the most relevant weather parameters affecting soil accumulation. Results show a significant dependency of dust concentration versus humidity and ambient temperature, as well as a nexus between wind speed and ambient temperature seems to exist. As long as the temperature decreases an increase of humidity and dust concentration occurs. This phenomenon takes place mostly overnight till the first hours of the morning. Therefore, mirror’s reflectance looks extremely affected by dust accumulation because of high humidity rate during the night and dews of early morning. Further investigations are required to validate the hypothesis that, a more effective cleaning activitie to restore plants’ reflectivity are to be carried out during the early morning.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83324347","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}
Pub Date : 2016-02-01DOI: 10.1016/J.ENBUILD.2015.12.036
A. Sojoudi, S. Saha, F. Xu, Yuantong T. Gu
{"title":"Transient air flow and heat transfer due to differential heating on inclined walls and heat source placed on the bottom wall in a partitioned attic shaped space","authors":"A. Sojoudi, S. Saha, F. Xu, Yuantong T. Gu","doi":"10.1016/J.ENBUILD.2015.12.036","DOIUrl":"https://doi.org/10.1016/J.ENBUILD.2015.12.036","url":null,"abstract":"","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81684045","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}
Charles Wang, K. Suara, Richard J. Brown, Yanming Feng
This paper presents a novel RTK-based GNSS Lagrangian drifter system that is capable of monitoring water velocity, turbulence and dispersion coefficients of river and estuarine. The Lagrangian drifters use the dual-frequency real time kinematic (RTK) technique for both position and velocity estimations. The capsule is designed to meet the requirements such as minimizing height, diameter, minimizing the direct wind drag, positive buoyancy for satellite signal reception and stability, and waterproof housing for electronic components, such as GNSS receiver and computing board. The collected GNSS data are processed with post-processing RTK software. Several experiments have been carried out in two rivers in Brisbane and Sunshine Coast in Queensland. Results show that the high accuracy GNSS-drifters can be used to measure dispersion coefficient resulting from sub-tidal velocity fluctuations in shallow tidal water. In addition, the RTK-GNSS drifters respond well to vertical motion and thus could be applicable to flood monitoring.
{"title":"RTK-based GNSS drifters for monitoring in estuaries and rivers: Field experimental results","authors":"Charles Wang, K. Suara, Richard J. Brown, Yanming Feng","doi":"10.33012/2016.13493","DOIUrl":"https://doi.org/10.33012/2016.13493","url":null,"abstract":"This paper presents a novel RTK-based GNSS Lagrangian drifter system that is capable of monitoring water velocity, turbulence and dispersion coefficients of river and estuarine. The Lagrangian drifters use the dual-frequency real time kinematic (RTK) technique for both position and velocity estimations. The capsule is designed to meet the requirements such as minimizing height, diameter, minimizing the direct wind drag, positive buoyancy for satellite signal reception and stability, and waterproof housing for electronic components, such as GNSS receiver and computing board. The collected GNSS data are processed with post-processing RTK software. Several experiments have been carried out in two rivers in Brisbane and Sunshine Coast in Queensland. Results show that the high accuracy GNSS-drifters can be used to measure dispersion coefficient resulting from sub-tidal velocity fluctuations in shallow tidal water. In addition, the RTK-GNSS drifters respond well to vertical motion and thus could be applicable to flood monitoring.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90688461","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}
The paper presents a geometry-free approach to assess the variation of covariance matrices of undifferenced triple frequency GNSS measurements and its impact on positioning solutions. Four independent geometryfree/ ionosphere-free (GFIF) models formed from original triple-frequency code and phase signals allow for effective computation of variance-covariance matrices using real data. Variance Component Estimation (VCE) algorithms are implemented to obtain the covariance matrices for three pseudorange and three carrier-phase signals epoch-by-epoch. Covariance results from the triple frequency Beidou System (BDS) and GPS data sets demonstrate that the estimated standard deviation varies in consistence with the amplitude of actual GFIF error time series. The single point positioning (SPP) results from BDS ionosphere-free measurements at four MGEX stations demonstrate an improvement of up to about 50% in Up direction relative to the results based on a mean square statistics. Additionally, a more extensive SPP analysis at 95 global MGEX stations based on GPS ionosphere-free measurements shows an average improvement of about 10% relative to the traditional results. This finding provides a preliminary confirmation that adequate consideration of the variation of covariance leads to the improvement of GNSS state solutions.
{"title":"Geometry-free stochastic analysis of BDS triple frequency signals","authors":"Yongchao Wang, Yanming Feng, Fu Zheng","doi":"10.33012/2016.13475","DOIUrl":"https://doi.org/10.33012/2016.13475","url":null,"abstract":"The paper presents a geometry-free approach to assess the \u0000variation of covariance matrices of undifferenced triple frequency GNSS measurements and its impact on \u0000positioning solutions. Four independent geometryfree/ \u0000ionosphere-free (GFIF) models formed from original \u0000triple-frequency code and phase signals allow for \u0000effective computation of variance-covariance matrices \u0000using real data. Variance Component Estimation (VCE) \u0000algorithms are implemented to obtain the covariance \u0000matrices for three pseudorange and three carrier-phase \u0000signals epoch-by-epoch. Covariance results from the \u0000triple frequency Beidou System (BDS) and GPS data sets \u0000demonstrate that the estimated standard deviation varies \u0000in consistence with the amplitude of actual GFIF error \u0000time series. The single point positioning (SPP) results \u0000from BDS ionosphere-free measurements at four MGEX \u0000stations demonstrate an improvement of up to about 50% \u0000in Up direction relative to the results based on a mean square statistics. Additionally, a more extensive \u0000SPP analysis at 95 global MGEX stations based on GPS \u0000ionosphere-free measurements shows an average improvement of about 10% relative to the traditional results. This finding provides a preliminary confirmation that adequate consideration of the variation of covariance leads to the improvement of GNSS state solutions.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82680601","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}
Pub Date : 2016-01-20DOI: 10.1080/19443994.2014.976770
Teng Bao, Tianhu Chen, C. Qing, Jingjing Xie, R. Frost
Novel filter Palygorskite porous ceramsite (PC) was prepared using Palygorskite clay, poreforming material sawdust, and sodium silicate with a mass ratio of 10:2:1 after sintering at 700°C for 180 min. PC was characterized with X-ray diffraction, X-ray fluorescence, scanning electron microscopy, elemental, and porosimetry. PC had a total porosity of 67% and specific surface area of 61 m2/g. In order to assess the usefulness of PC as a medium for biological aerated filters (BAF), PC and (commercially available ceramsite) CAC were used to treat wastewater city in two laboratory-scale upflow BAFs. The results showed that the reactor containing PC was more efficient than the reactor containing CAC in terms of total organic carbon (TOC), ammonia nitrogen (NH3-N), and the removal of total nitrogen (TN) and phosphorus (P). This system was found to be more efficient at water temperatures ranging from 20 to 26°C, an air–water (A/W) ratio of 3:1, dissolved oxygen concentration >4.00 mg/L, and hydraulic retention time (HRT) ranging from 0.5 to 7 h. The interconnected porous structure produced for PC was suitable for microbial growth, and primarily protozoan and metazoan organisms were found in the biofilm. Microorganism growth also showed that, under the same submerged culture conditions, the biological mass in PC was significantly higher than in CAC (34.1 and 2.2 mg TN/g, respectively). In this way, PC media can be considered suitable for the use as a medium in novel biological aerated filters for the simultaneous removal of nitrogen and phosphorus.
{"title":"Development and application of Palygorskite porous ceramsite in a biological aerated filter (BAF)","authors":"Teng Bao, Tianhu Chen, C. Qing, Jingjing Xie, R. Frost","doi":"10.1080/19443994.2014.976770","DOIUrl":"https://doi.org/10.1080/19443994.2014.976770","url":null,"abstract":"Novel filter Palygorskite porous ceramsite (PC) was prepared using Palygorskite clay, poreforming material sawdust, and sodium silicate with a mass ratio of 10:2:1 after sintering at 700°C for 180 min. PC was characterized with X-ray diffraction, X-ray fluorescence, scanning electron microscopy, elemental, and porosimetry. PC had a total porosity of 67% and specific surface area of 61 m2/g. In order to assess the usefulness of PC as a medium for biological aerated filters (BAF), PC and (commercially available ceramsite) CAC were used to treat wastewater city in two laboratory-scale upflow BAFs. The results showed that the reactor containing PC was more efficient than the reactor containing CAC in terms of total organic carbon (TOC), ammonia nitrogen (NH3-N), and the removal of total nitrogen (TN) and phosphorus (P). This system was found to be more efficient at water temperatures ranging from 20 to 26°C, an air–water (A/W) ratio of 3:1, dissolved oxygen concentration >4.00 mg/L, and hydraulic retention time (HRT) ranging from 0.5 to 7 h. The interconnected porous structure produced for PC was suitable for microbial growth, and primarily protozoan and metazoan organisms were found in the biofilm. Microorganism growth also showed that, under the same submerged culture conditions, the biological mass in PC was significantly higher than in CAC (34.1 and 2.2 mg TN/g, respectively). In this way, PC media can be considered suitable for the use as a medium in novel biological aerated filters for the simultaneous removal of nitrogen and phosphorus.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"182 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90593472","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}
Pub Date : 2016-01-12DOI: 10.4225/08/58542C54413EE
Rocio Ponce Reyes, J. Firn, S. Nicol, I. Chades, D. Stratford, T. Martin, S. Whitten, J. Carwardine
In this report, we present a costed and prioritised set of feasible threat management strategies for protecting 179 of the most threatened native plant and animal species of the Brigalow Belt bioregion, a highly modified biodiversity hotspot covering 20% of Queensland, Australia. The 12 strategies outlined here were designed through a consultation process with 40 experts and stakeholders in biodiversity and land management of the region, using the best available scientific data and expert knowledge.
{"title":"Priority threat management for imperilled species of the Queensland Brigalow Belt","authors":"Rocio Ponce Reyes, J. Firn, S. Nicol, I. Chades, D. Stratford, T. Martin, S. Whitten, J. Carwardine","doi":"10.4225/08/58542C54413EE","DOIUrl":"https://doi.org/10.4225/08/58542C54413EE","url":null,"abstract":"In this report, we present a costed and prioritised set of feasible threat management strategies for protecting 179 of the most threatened native plant and animal species of the Brigalow Belt bioregion, a highly modified biodiversity hotspot covering 20% of Queensland, Australia. The 12 strategies outlined here were designed through a consultation process with 40 experts and stakeholders in biodiversity and land management of the region, using the best available scientific data and expert knowledge.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88488318","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}
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