2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)最新文献

Design of a Transoceanic Cable Protection System 跨洋电缆保护系统的设计

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489289

I. Geisler, D. Underwood, Kumar Karra, Felipe Cardenas

{"title":"Design of a Transoceanic Cable Protection System","authors":"I. Geisler, D. Underwood, Kumar Karra, Felipe Cardenas","doi":"10.1109/SIEDS.2016.7489289","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489289","url":null,"abstract":"A system of underwater fiber optic cables spanning the world's oceans carries 99% of international communication data. Billions of dollars are invested into this network, resulting in 36% annual growth over the last 7 years. Over 150 cable damage incidents occur per year, causing significant losses to available cable bandwidth. Sixty percent of the faults are caused by human action, such as fishing and anchoring. Twenty percent are caused by random natural events and component failures, while the remaining 20% of fault causes are unknown. In addition, repairing a fault takes on average 13 days and costs $6 million, with more incurred costs due to the inability to provide bandwidth to its customers. This paper describes a design and operation to protect these cables by deployment of Transoceanic Cable Protection System (TCPS). The system consists of a Mission Control Center to accomplish three functions: (1) Threat Identification, (2) Damage Prevention, and (3) Coordination of Cable Repair. A probabilistic Monte Carlo simulation was developed to determine the effects of the TCPS on cable downtime, threat detection, mean time between failure, and cost per fault. The model evaluates the performance of TCPS based on the input distributions for threat generation, threat inter-arrival time, identification of threats, damage prevention, and repair time. A utility vs. cost analysis factoring in prevention, identification, cable downtime, lifespan, and environmental impact indicates that a passive hydrophone array is the most effective design for the Threat Identification function.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115613216","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

Risk analysis of globalized airline supply chains 全球化航空供应链的风险分析

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489324

Patrick Bains, Kyle Ferris, Justin Gregoire, James Kim, Jacob Kozloski, Jonathan Lazenby, Dimitri Ofiesh, Evangeline M. Shank, K. Wu, P. Beling, C. Fleming

{"title":"Risk analysis of globalized airline supply chains","authors":"Patrick Bains, Kyle Ferris, Justin Gregoire, James Kim, Jacob Kozloski, Jonathan Lazenby, Dimitri Ofiesh, Evangeline M. Shank, K. Wu, P. Beling, C. Fleming","doi":"10.1109/SIEDS.2016.7489324","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489324","url":null,"abstract":"Infiltration of the global airplane production supply chain could have catastrophic impacts on flight safety. Thousands of suppliers feed specialized components and materials to only a few large airplane manufacturers. One compromised node in the supply chain could significantly damage the world's commercial airline fleets. A methodology and two models are proposed to detect and assess risk points in the global airplane production supply chain in order to increase safety in commercial air travel. Analyzing risk in the supply chain involves (1) examining ubiquity of components; (2) instances in which a component travels through a geopolitically unstable region; and (3) supply chain nodes responsible for a significant proportion of production with respect to an airplane model, an airplane manufacturer's fleet, or an airline's fleet. Finally, components are assigned a risk score based on ubiquity and geopolitical risk, and high-risk supply chain nodes are identified. With the appropriate data, the generalizable design of the methodology and models could be applied to the supply chain of any airplane model, any fleet size or fleet makeup, and other vehicles. A dashboard that allows more specific investigation is also demonstrated.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":" 32","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120827897","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: 2

Design of a system for Aircraft Fuselage Inspection 飞机机身检测系统的设计

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489315

Ruiz Fernández, K. Keller, J. Robins

{"title":"Design of a system for Aircraft Fuselage Inspection","authors":"Ruiz Fernández, K. Keller, J. Robins","doi":"10.1109/SIEDS.2016.7489315","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489315","url":null,"abstract":"The average age of commercial aircraft operating domestic flights in the United States is 10.7 years and continues to increase. Advances in robotics and imaging technologies show potential to reduce costs, time and to improve quality of fuselage inspections. A stochastic simulation was developed to evaluate the inspection process. The simulation represents differences in inspection techniques for components of the aircraft, such as the landing gear compared to the lap-splice panels, by categorizing the aircraft with ten representative regions. Simulation results indicates a decrease in the time required to complete inspection while simultaneously improving the overall quality in crack detection by the use of emerging non-destructive inspection technologies in aircraft maintenance: non-contact laser-ultrasonic (average savings of 43.28 minutes per section per inspection), synthetic aperture imaging drone (average savings of 45.60 minutes), and thermographic robotic crawler (crack detection rate increase of 54% with an average increase of 26.86 minutes per section). Using a utility hierarchy focused on performance, safety, and ability to implement, the most viable technological alternatives rank: non-contact laser-ultrasonic with a utility value of 0.824, human inspector with a utility of 0.811, synthetic aperture imaging with a utility of 0.783, and thermographic robotic crawler with a utility of 0.748. Based on the simulation results and utility analysis, it is recommended that MRO facilities implement non-contact laser ultrasonic technology as a method to scan the exterior of their aircraft to detect widespread fatigue damage.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125294568","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: 9

Developing and implementing a Usability Test Plan for the Challenger Center's EngiLearn 为挑战者中心的engillearn开发和实施可用性测试计划

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489309

A. Cardwell, Lolly Kruse, N. Luque, Madison Ratliff, Annie Stettinius, R. Bailey

{"title":"Developing and implementing a Usability Test Plan for the Challenger Center's EngiLearn","authors":"A. Cardwell, Lolly Kruse, N. Luque, Madison Ratliff, Annie Stettinius, R. Bailey","doi":"10.1109/SIEDS.2016.7489309","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489309","url":null,"abstract":"This work focuses on usability testing of a computer-based simulation that immerses fifth graders in an underwater ocean exploration mission. In particular, the focus is on the testing the interface that teachers use during and after the mission to view student performance. The Challenger Center, a non-profit with a long history of inspiring young students to pursue careers in STEM fields through simulated space and exploration missions, is developing the simulation for use in classrooms. As with the traditional Challenger Center experiences that are conducted at regional \"Learning Centers\", students will answer questions \"embedded\" within this new classroom simulation throughout an entertaining adventure-style mission. Students' progress through these questions is displayed for the elementary school teacher to review during and after the mission on what has been labeled the \"Embedded Assessment.\" This Embedded Assessment is the focus of the usability testing in this paper. The Usability Test plan consists of both internal testing and user-oriented testing. The university team completes internal testing and all results and recommendations are reported to the Challenger Center to be implemented before user-oriented testing. Internal testing is focused on assuring that functional requirements are met and the software is clear and intuitive. User-oriented testing incorporates potential users (i.e. teachers and students) to test the software, and asks them to give feedback on the overall experience. This stage of testing is focused on assuring that the software is easy to use and the end user is satisfied. This paper includes the comprehensive Usability Test Plan and the motivation behind each of the tests, along with internal test results and recommendations for improvement.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115195126","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

Optimization of sepsis risk assessment for ward patients 病房患者脓毒症风险评估的优化

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489280

S. Mitchell, K. Schinkel, Yifeng Song, Yuanbo Wang, J. Ainsworth, Travis Halbert, Stephen Strong, Jinghe Zhang, C. Moore, Laura E. Barnes

{"title":"Optimization of sepsis risk assessment for ward patients","authors":"S. Mitchell, K. Schinkel, Yifeng Song, Yuanbo Wang, J. Ainsworth, Travis Halbert, Stephen Strong, Jinghe Zhang, C. Moore, Laura E. Barnes","doi":"10.1109/SIEDS.2016.7489280","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489280","url":null,"abstract":"Sepsis is the systemic response to infection complicated by organ dysfunction. It is a leading cause of in-hospital mortality, with an observed mortality of 20-40%, and is associated with significantly high costs. Furthermore, patients who survive sepsis are more likely to have permanent organ damage, cognitive impairment and physical disability. Survival from sepsis is dependent on early and targeted treatment. Accepted methods for identifying and predicting sepsis have typically been based on intensive care unit (ICU) patients and founded upon a limited and outdated definition of sepsis based on systemic inflammatory response syndrome (SIRS) criteria - one which is not clinically validated and shown to miss at least 1 out of 8 cases. Recently updated consensus guidelines on sepsis have been published and offer the possibility of improved EWS and predictive models. Our goal was to identify non-ICU ward patients with sepsis earlier and more accurately using the newly established sepsis definition and improved predictive models. Using multivariate logistic regression and routinely available physiological and laboratory data from electronic health records (EHRs), we derived an EWS that identifies at-risk ward patients 12-24 hours prior to sepsis onset with an area under the receiver operating characteristic curve (AUC) result of 74%. This model, when applied on a separate ICU population, achieved an AUC curve result of 56%, indicating the model has worse performance in this setting.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114155748","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: 11

Integrating rich document representations for text classification 集成用于文本分类的丰富文档表示

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489319

Suqi Jiang, Jason Lewris, Michael Voltmer, Hongning Wang

{"title":"Integrating rich document representations for text classification","authors":"Suqi Jiang, Jason Lewris, Michael Voltmer, Hongning Wang","doi":"10.1109/SIEDS.2016.7489319","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489319","url":null,"abstract":"This paper involves deriving high quality information from unstructured text data through the integration of rich document representations to improve machine learning text classification problems. Previous research has applied Neural Network Language Models (NNLMs) to document classification performance, and word vector representations have been used to measure semantics among text. Never have they been combined together and shown to have improved text classification performance. Our belief is that the inference and clustering abilities of word vectors coupled with the power of a neural network can create more accurate classification predictions. The first phase our work focused on word vector representations for classification purposes. This approach included analyzing two distinct text sources with pre-marked binary outcomes for classification, creating a benchmark metric, and comparing against word vector representations within the feature space as a classifier. The results showed promise, obtaining an area under the curve of 0.95 utilizing word vectors, relative to the benchmark case of 0.93. The second phase of the project focused on utilizing an extension of the neural network model used in phase one to represent a document in its entirety as opposed to being represented word by word. Preliminary results indicated a slight improvement over the baseline model of approximately 2-3 percent.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129534120","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: 10

Design and evaluation of an Orbital Debris Remediation system 轨道碎片修复系统的设计与评估

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489290

B. Noble, Yahya Almanee, Abdulelah Shakir, Sungmin Park

{"title":"Design and evaluation of an Orbital Debris Remediation system","authors":"B. Noble, Yahya Almanee, Abdulelah Shakir, Sungmin Park","doi":"10.1109/SIEDS.2016.7489290","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489290","url":null,"abstract":"Over the last 10 years the number of satellites has grown 59% from 819 to 1305, and revenues have risen 92% from $105.5 billion to $203 billion. Threatening this industrial sector is orbital debris, including rocket bodies and defunct satellites. Current orbital debris mass ranges from <;1 kg to 8300 kg and has grown 124% between 2006 and 2010. It is estimated that population of debris objects >10 cm in diameter will have grown to over 15,000 by year 2100. This paper describes an analysis of the Utility vs. Life-cycle Cost for seven Active Debris Removal (ADR) design alternatives with the goal of removing five space debris objects per year for ten years. The Design Alternatives include three physical capture mechanisms, (1) a robotic arm, (2) throw net, and (3) harpoon, and four contactless capture mechanisms, (4) COBRA IRIDES, (5) three-coordinated electromagnetic spacecraft, (6) eddy currents, and the (7) ElectroDynamic Debris Eliminator (EDDE). The Utility Analysis considered the attributes of Performance, Risk, and Political Viability, each further decomposed into sub-attributes. Performance included measures of effectiveness and delta-v cost. Effectiveness is determined via linear decreasing functions for mass E(x) = 1 - max-x/max-min, and exponential decreasing functions for velocity and rotation, E(x) = e-λx, where λ=mean value (velocity or rotation) acceptable. Delta-v cost is determined by calculating the fuel burns required to change velocity in order to maneuver between derelicts: ΔV = Σ|Vi-Vj|, ∀i, ∀j, i ≠ j, where Vi is the velocity of derelict i and Vj is the velocity of derelict j. The throw net has the highest overall utility, but the harpoon has the highest utility per dollar. Reducing the cost of the net by a factor of 10 would make it more competitive with the throw net. In addition, a significant weight of the utility stems from the political viability of the design. If the viability of any of the designs could be improved, then they would quickly become a contender for the optimal design.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129345459","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

Revealing the landscape: Detecting trends in a scientific corpus 揭示景观:在科学语料库中检测趋势

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489317

J.P. Arrivillaga, Dylan Greenleaf, M. Hawthorn, Raf Alvarado

{"title":"Revealing the landscape: Detecting trends in a scientific corpus","authors":"J.P. Arrivillaga, Dylan Greenleaf, M. Hawthorn, Raf Alvarado","doi":"10.1109/SIEDS.2016.7489317","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489317","url":null,"abstract":"Scientific literature is growing at a rapid pace. Meanwhile, various stakeholders need to grasp novel trends and innovations in order to make sound policy decisions in real time. Modern data mining techniques can be leveraged to ease the burden of manually combing through thousands of documents. In this paper we present a data product for exploration and filtration of a large corpus of citations from several distinct commercial databases. The end goal is a highly interactive user interface for intuitive corpus exploration on the front end, supported by data ingestion, merging, inference, and novelty detection capabilities on the back end. Due to the high dimensionality of textual data, dimensionality reduction and summarization are major requirements for effective exploratory analysis. Toward these ends we apply a topic model, specifically the Latent Dirichlet Allocation (LDA) model. The resulting dimensionality reduction improves the comprehensibility of the corpus for the end user, while also allowing a speedup of document-document comparison. Document similarity is computed using Hellinger distance, which is a Euclidean distance in a transformed topic-weight space, and thus nearest document queries can be implemented efficiently using a kd-tree data structure. Further information reduction is achieved through the use of a supervised nonparametric trend detection algorithm originally developed in the context of social media (Twitter), in order to suggest terms of potential interest to the user based on their likelihood of embodying significant trends. To our knowledge the application of this technique in the scientometric domain is novel.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"59 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131356849","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: 2

Statistical analysis of DMV crash data 车管所碰撞数据统计分析

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489281

Wenting Tong, P. Cherian, Jianzhe Liu, Haoyu Li, Quanquan Gu

{"title":"Statistical analysis of DMV crash data","authors":"Wenting Tong, P. Cherian, Jianzhe Liu, Haoyu Li, Quanquan Gu","doi":"10.1109/SIEDS.2016.7489281","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489281","url":null,"abstract":"The purpose of this paper is to present statistical methods and models we used to find out factors that caused fatal car crashes and high damage cost. The benefit of our project is that the Virginia DMV can make some adjustments accordingly and reduce the number of crashes that are fatal and have high damage cost. The data we used is between 2010 and 2014 for both fatality analysis and damage cost analysis. Data of 2015 was used for fatality analysis only. In the first part of this paper, we will introduce how we find factors that caused fatal car crashes. Since the data are unbalanced, we first subsampled the non-fatal crashes and applied a higher weight for fatal crashes. When building the model, we used logistic regression model to predict whether an accident is fatal or not. To select features that are more important, we used factors that are all numeric and with correlation value more than 0.1. We obtained a recall of 40% in the prediction from the logistic regression. We also adopted Decision Tree in fatality analysis and built two models for 2010-2014 data as well as 2015 data. In the second part of this paper, we will discuss how we find factors that caused damage cost. Since values of damage cost variable are unbalanced, we proposed a two-state method to find critical factors of the damage cost. First, we used K nearest neighborhood (KNN) to predict whether the damage cost is 0 or not. Second, we built Lasso Regression on the data where the damage cost were not zero and discovered the factors that lead to the damage cost.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132827695","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

Water disinfection using moringa protein adsorbed on rice husk ash 利用稻壳灰吸附辣木蛋白对水进行消毒

2016 IEEE Systems and Information Engineering Design Symposium (SIEDS) Pub Date : 2016-04-29 DOI: 10.1109/SIEDS.2016.7489291

J. Barajas, Jana Latayan, S. Pagsuyoin, F. Bacani, Joost R. Santos, Raymond Tan, A. Orbecido, L. Razon, M. Almendrala

{"title":"Water disinfection using moringa protein adsorbed on rice husk ash","authors":"J. Barajas, Jana Latayan, S. Pagsuyoin, F. Bacani, Joost R. Santos, Raymond Tan, A. Orbecido, L. Razon, M. Almendrala","doi":"10.1109/SIEDS.2016.7489291","DOIUrl":"https://doi.org/10.1109/SIEDS.2016.7489291","url":null,"abstract":"Untreated surface water and groundwater are the primary sources of drinking water in many parts of the world, particularly in low-income regions. In these communities, the availability of low-cost water treatment technologies is especially critical in reducing incidences of waterborne diseases. In the present study, we explore the use of Moringa seeds for disinfecting contaminated water. Moringa seeds are known to contain proteins that have antibacterial and coagulant properties; however, the seeds also contain soluble organics that can serve as food for pathogen regrowth, causing storage issues with the treated water. To address this problem, we investigated the adsorption of Moringa proteins (MOP) onto rice husk ash (RHA) and assessed whether the proteins retained their antibacterial properties. The experimental analysis was divided into two parts. The first part evaluated the effect of initial Moringa dosage and contact time on the MOP sorption. The second part investigated the effect of MOP dose, E. coli contamination levels, and contact time on MOP disinfection. Results showed that MOP is bound strongly on the RHA surface and is not released back into solution. Results of the disinfection experiments revealed that the E. coli that adhered onto MOP-functionalized RHA surface were inactivated. Although higher E. coli removal was observed in bare RHA, the adhered E. coli cells on the bare RHA surface remained viable. Overall, these results suggest a potential practical solution to the undesired co-release of soluble organic matter in Moringa seeds.","PeriodicalId":426864,"journal":{"name":"2016 IEEE Systems and Information Engineering Design Symposium (SIEDS)","volume":"2003 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134477054","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: 8