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Fault Diagnosis And Failure Prognostics Of Lithium-Ion Battery Based On Least Squares Support Vector Machine And Memory Particle Filter Framework, Mohammed Ali Lskaafi 2015 University of Tennessee - Knoxville

Fault Diagnosis And Failure Prognostics Of Lithium-Ion Battery Based On Least Squares Support Vector Machine And Memory Particle Filter Framework, Mohammed Ali Lskaafi

Doctoral Dissertations

123456A novel data driven approach is developed for fault diagnosis and remaining useful life (RUL) prognostics for lithium-ion batteries using Least Square Support Vector Machine (LS-SVM) and Memory-Particle Filter (M-PF). Unlike traditional data-driven models for capacity fault diagnosis and failure prognosis, which require multidimensional physical characteristics, the proposed algorithm uses only two variables: Energy Efficiency (EE), and Work Temperature. The aim of this novel framework is to improve the accuracy of incipient and abrupt faults diagnosis and failure prognosis. First, the LSSVM is used to generate residual signal based on capacity fade trends of the Li-ion batteries. Second, adaptive threshold ...


Dividing And Conquering Meshes Within The Nist Fire Dynamics Simulator (Fds) On Multicore Computing Systems, Donald Charles Collins 2015 University of Tennessee - Knoxville

Dividing And Conquering Meshes Within The Nist Fire Dynamics Simulator (Fds) On Multicore Computing Systems, Donald Charles Collins

Masters Theses

The National Institute for Standards and Technology (NIST) Fire Dynamics Simulator (FDS) provides a computational fluid dynamics model of a fire, which can be visualized by using NIST Smokeview (SMV). Users must create a configuration file (*.fds) that describes the environment and other characteristics of the fire scene so that the FDS software can produce the output file (*.smv) needed for visualization.The processing can be computationally intensive, often taking between several minutes and several hours to complete. In many cases, a user will create a file that is not optimized for a multicore computing system. By dividing meshes within ...


Evaluating Launch Vehicle / Reentry Vehicle (Lv/Rv) Separation Concepts, Zheng Tao, Ganghuai Wang, Tudor Masek, Thomas J. St. Clair 2015 The MITRE Corporation

Evaluating Launch Vehicle / Reentry Vehicle (Lv/Rv) Separation Concepts, Zheng Tao, Ganghuai Wang, Tudor Masek, Thomas J. St. Clair

Space Traffic Management Conference

Launch Vehicle/Reentry Vehicle (LV/RV) operations are expected to increase across the National Airspace System (NAS) as their reliability and availability improve. LV/RV designs and the industry landscape have vastly changed since the 1960’s, and the Federal Aviation Administration’s (FAA) methods for handling these operations need to evolve to support the expected growth. Currently, large amounts of airspace are segregated for every LV/RV operation. This increases costs for NAS users and may limit LV/RV opportunities. The FAA’s NextGen office recently proposed two more efficient separation concepts for LV/RV operations called Space Transition ...


A Multi-Criteria Gis-Based Route Selection Tool For Hazardous Material Transport: Consideration Of Environmental Consequence, Traffic Congestions And Costs, Bahareh Inanloo 2015 Florida International University

A Multi-Criteria Gis-Based Route Selection Tool For Hazardous Material Transport: Consideration Of Environmental Consequence, Traffic Congestions And Costs, Bahareh Inanloo

FIU Electronic Theses and Dissertations

Hazardous materials are substances that, if not regulated, can pose a threat to human populations and their environmental health, safety or property when transported in commerce. About 1.5 million tons of hazardous material shipments are transported by truck in the US annually, with a steady increase of approximately 5% per year.

The objective of this study was to develop a routing tool for hazardous material transport in order to facilitate reduced environmental impacts and less transportation difficulties, yet would also find paths that were still compelling for the shipping carriers as a matter of trucking cost. The study started ...


A Method Of Mapping Sinkhole Susceptibility Using A Geographic Information System: A Case Study For Interstates In The Karst Counties Of Virginia, Alexandra L. Todd, Lindsay Ivey-Burden 2015 University of Virginia - Main Campus

A Method Of Mapping Sinkhole Susceptibility Using A Geographic Information System: A Case Study For Interstates In The Karst Counties Of Virginia, Alexandra L. Todd, Lindsay Ivey-Burden

Sinkhole Conference 2015

Karst terrain is landscape underlain by limestone that has been chemically dissolved by acidic groundwater, producing subsurface voids that pose risks for sinkholes if the overlaying soils can no longer support their own weight and collapse. The western counties of Virginia are heavy in karst due to their natural, geographic boundary of the western Ridge Province and the eastern Blue Ridge Mountain Range. As a result, the Commonwealth of Virginia Hazard Mitigation Plan recommends that the Virginia Department of Transportation (VDOT) develop a method to determine the roadways and regions most susceptible to experiencing sinkholes, in an effort to reduce ...


From Human Reliability To Resilience & System Performance - Adapting To A Changing World, Gesa Praetorius 2015 World Maritime University

From Human Reliability To Resilience & System Performance - Adapting To A Changing World, Gesa Praetorius

Gesa Praetorius

Presentation given at the IALA Human Factors in VTS workshop, 11 October 2015, Gothenburg, Sweden.


A Machine Learning Approach To Post-Market Surveillance Of Medical Devices, Jonathan Bates, Shu-Xia Li, Craig Parzynski, Ronald Coifman, Harlan Krumholz, Joseph Ross 2015 Yale University

A Machine Learning Approach To Post-Market Surveillance Of Medical Devices, Jonathan Bates, Shu-Xia Li, Craig Parzynski, Ronald Coifman, Harlan Krumholz, Joseph Ross

Yale Day of Data

Post-market surveillance is a collection of processes and activities used by product manufacturers and regulators, such as the U.S. Food and Drug Administration (FDA) to monitor the safety and effectiveness of medical devices once they are available for use “on the market”. These activities are designed to generate information to identify poorly performing devices and other safety problems, accurately characterize real-world device performance and clinical outcomes, and facilitate the development of new devices, or new uses for existing devices. Typically, a device is monitored by comparing adverse events in the exposed population to a matched unexposed population. This research ...


Developing An Optimal Model For Infant Home Visitation, Isaac Atuahene 2015 University of Tennessee - Knoxville

Developing An Optimal Model For Infant Home Visitation, Isaac Atuahene

Doctoral Dissertations

The United States, Great Britain, Denmark, Canada and many other countries have accepted home visitation (HV) as a promising strategy for interventions for infants after births and for their mothers. Prior HV studies have focused on theoretical foundations, evaluations of programs, cost/benefit analysis and cost estimation by using hospital/payer/insurance data to prove its effectiveness and high cost. As governments and private organizations continue to fund HVs, it is an opportune time to develop and formulate operations research (OR) models of HV coverage, quality and cost so they might be used in program implementation as done for adult ...


Requirements For A Computer Code System For The Development And Maintenance Of Target Sets, Christopher Chwasz 2015 University of Tennessee - Knoxville

Requirements For A Computer Code System For The Development And Maintenance Of Target Sets, Christopher Chwasz

Masters Theses

In the field of commercial nuclear reactor security, the concept of target sets has matured since its invention in the late 1980s and early 1990s to the codification of target set regulations by the United States Nuclear Regulatory Commission in 2009 and publishing of official guidance in 2010. Target sets have evolved into a complex and useful tool to develop and test a protective strategy. By their definition, target sets are the “minimum combination of equipment or operator actions which, if all are prevented from performing their intended safety function or prevented from being accomplished, would likely result in significant ...


Applying Fram To Enhance Formal Safety Assessment In The Maritime Domain, Gesa Praetorius 2015 World Maritime University

Applying Fram To Enhance Formal Safety Assessment In The Maritime Domain, Gesa Praetorius

Gesa Praetorius

Presentation given at the Functional Resonance Analysis Method (FRAM) workshop in Olten, Switzerland, 12 June 2015.


Topsis As A Method To Populate Risk Matrix Axes, Christian Salmon, Mohammadsadegh Mobin, Afshan Roshani 2015 Western New England UniversityWestern New England University

Topsis As A Method To Populate Risk Matrix Axes, Christian Salmon, Mohammadsadegh Mobin, Afshan Roshani

Mohammadsadegh Mobin

This research utilizes TOPSIS (a Multi-Criteria ranking methodology) to populate the axes of a risk matrix when modeling risk exposure onboard commercial fishing vessels with the intent to identify mitigating interventions in low risk settings for possible transfer to high risk settings. The specific hazard of interest is the release of refrigerants into confined spaces onboard commercial fishing vessels. The metrics of risk are: 1) expectation that refrigerants are released onboard vessels, and 2) consequence of releases that have occurred. To model expectation: data were collected on the United States’ commercial fisheries, including location and number of participating vessels. These ...


An Assessment Of The Performances Of Several Univariate Tests Of Normality, James Olusegun Adefisoye 2015 Florida International University

An Assessment Of The Performances Of Several Univariate Tests Of Normality, James Olusegun Adefisoye

FIU Electronic Theses and Dissertations

The importance of checking the normality assumption in most statistical procedures especially parametric tests cannot be over emphasized as the validity of the inferences drawn from such procedures usually depend on the validity of this assumption. Numerous methods have been proposed by different authors over the years, some popular and frequently used, others, not so much. This study addresses the performance of eighteen of the available tests for different sample sizes, significance levels, and for a number of symmetric and asymmetric distributions by conducting a Monte-Carlo simulation. The results showed that considerable power is not achieved for symmetric distributions when ...


Risk Management In Motorway Ppp Projects: Empirical-Based Guidelines, Nunzia Carbonara, Nicola Costantino, Louis Gunnigan, Roberta Pellegrino 2015 Polytechnic of Bari

Risk Management In Motorway Ppp Projects: Empirical-Based Guidelines, Nunzia Carbonara, Nicola Costantino, Louis Gunnigan, Roberta Pellegrino

Articles

This paper deals with the topic of risk management in Public–Private Partnership (PPP). The analysis of the related literature reveals that risks must be analyzed and managed on a context-specific approach, and that there is a lack of a comprehensive study on the appropriate risk mitigation strategies for each risk embedded in PPP projects. Focusing on the transport sector, based on the results of a Delphi survey, the paper provides guidelines for both public and private parties in defining a list of significant risks in PPP motorway projects, and identifying for them both the effective allocation and the suitable ...


Third Party Airport Crash Risk Model For Non-Towered Airports, Christian Salmon 2015 Western New England University

Third Party Airport Crash Risk Model For Non-Towered Airports, Christian Salmon

Aviation / Aeronautics / Aerospace International Research Conference

This research leverages the objective accident data record towards an individual and societal 3rd party “external” airport risk model for aircraft operations that crash while operating at non-towered airports.

Small aircraft, specifically Part 91, operating at non-towered airports have a crash rate estimated at 10-fold that of commercial operations. Given the nature of the typically non-towered airport, situated in close physical proximity with residential structures, this exposes residents to substantive risk of injury and death due to aircraft crashing.

A 3rd party risk model that maps risk of injury, death and percent structural damage will enable informed decisions ...


Strengthening The Rail Mode Of Transport By Condition Based Preventive Maintenance, René Schenkendorf, Jörn Groos, Lars Johannes 2015 German Aerospace Center

Strengthening The Rail Mode Of Transport By Condition Based Preventive Maintenance, René Schenkendorf, Jörn Groos, Lars Johannes

René Schenkendorf

No abstract provided.


Customer Complaint Management Systems (Ccms) In A Food Processing Industry, Maggie A. MacLeish 2015 James Madison University

Customer Complaint Management Systems (Ccms) In A Food Processing Industry, Maggie A. Macleish

Senior Honors Projects

Abstract

The food processing industry must meet customers’ highest quality expectations at the lowest cost. I partnered with Nestlé’s pizza facility in Little Chute, WI, to improve the current customer complaint approach of the quality department, which aimed to improve product quality. To improve the total quality of the system, this project established a defensive method of addressing customer complaints. Some strategies used to improve the current Customer Complaint Management System (CCMS) include Quality Functional Deployment (QFD), fuzzy logic, Kano’s methods, Voice of the customer (VOC) and Go-See-Think-Do (GSTD). These strategies are all related, but have not previously ...


Chesapeake Bay Blue Crabs And Consumption Related Illness, Caitlin M. Shipman 2015 James Madison University

Chesapeake Bay Blue Crabs And Consumption Related Illness, Caitlin M. Shipman

Senior Honors Projects

Currently, 72.2% of the Chesapeake Bay is impaired due to pollutants that impaired water quality. Some common pollutants in the Bay that are also toxic if consumed are: polychlorinated biphenyls (PCBs), mercury, and lead. Pollutants tend to settle on the Bay floor and become accumulate in the sediment. Most shellfish and small finfish live near or on the Bay floor and are may be exposed to high levels of pollutants. Therefore, bioaccumulation and biomagnification of pollutants can occur in shellfish and finfish tissues. These pollutants may cause a risk to human health by either increasing the risk of developing ...


Strategic Cyber Intelligence.Pdf, Randy Borum, John Felker, Sean Kern, Kristen Dennesen, Tonya Feyes 2014

Strategic Cyber Intelligence.Pdf, Randy Borum, John Felker, Sean Kern, Kristen Dennesen, Tonya Feyes

Randy Borum

Purpose – This paper aims to highlight the importance and role of strategic cyber intelligence to support risk-informed decision-making, ultimately leading to improved objectives, policies, architectures and investments to advance a nation or organization’s interests in the cyber domain.
Design/methodology/approach – Integration of professional research literature from the fields of intelligence studies, strategy and information/computer security.
Findings – Investing in technology, firewalls and intrusion detection systems is appropriate but, by itself, insufficient. Intelligence is a key component. Cyber intelligence emphasizes prevention and anticipation, to focus cybersecurity efforts before an attack occurs (“left of the hack”). Strategic cyber intelligence can ...


Applying Probabilistic Methods To The Nato Military Load Classification System For Bridges, Andrew J. MacDonald 2014 The University of Western Ontario

Applying Probabilistic Methods To The Nato Military Load Classification System For Bridges, Andrew J. Macdonald

Electronic Thesis and Dissertation Repository

Military vehicles frequently use civilian bridges. The loading effects of military vehicles, both wheeled and tracked, are specific and different than those of civilian vehicles in normal traffic. Calibration to determine appropriate load factors for military loading of civilian bridges has not been fully performed and the corresponding levels of safety have not been quantified. This lack of calibration prevents the implementation of limit state design methods for military bridges and the evaluation bridges for military loading. This thesis quantifies probabilistically the single lane traffic load effects on interior girders of simply supported slab-on-girder bridges for three military vehicles in ...


Security Analysis On Network Systems Based On Some Stochastic Models, Xiaohu Li 2014 University of New Orleans

Security Analysis On Network Systems Based On Some Stochastic Models, Xiaohu Li

University of New Orleans Theses and Dissertations

Due to great effort from mathematicians, physicists and computer scientists, network science has attained rapid development during the past decades. However, because of the complexity, most researches in this area are conducted only based upon experiments and simulations, it is critical to do research based on theoretical results so as to gain more insight on how the structure of a network affects the security. This dissertation introduces some stochastic and statistical models on certain networks and uses a k-out-of-n tolerant structure to characterize both logically and physically the behavior of nodes. Based upon these models, we draw several illuminating results ...


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