Index Catalog // GW ScholarSpace

ANALYSIS OF RELIABILITY USING REAL MASKED SYSTEM LIFE DATA

Description:: Maintenance personnel often lack the resources to determine which specific subassembly of a complex electronic system has failed but can only isolate the cause of failure to a subset of subassemblies. In these circumstances, the most efficient manner for replacing the suspect subassemblies is...
Author:: Hutto, Donald E.
Keyword:: Weibull distribution, masking, Competing risks, Gibbs sampler, maximum likelihood estimation, and Bayes Theorem
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: D.Sc.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Sarkani, Shahram, Sarkani, Shahryar, Murphree, Jr, Edward L, Ryan, Julie, and Mazzuchi, Thomas A
Resource Type:: Thesis or Dissertation

A Framework for Considering Uncertainty within the Context of a Network-Centric Semantic Web: A Mine Warfare Example

Description:: This paper examines the challenge of understanding uncertainty associated with military measures of effectiveness given incomplete and often imperfect information. With the migration towards a network-centric capability, the ability to represent, quantify, and aggregate uncertainty of information...
Author:: Cramer, Megan
Keyword:: Semantic, Uncertainty, Military, Ontology, Mine Warfare, and Data Model
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Mazzuchi, Thomas A, Djavanshir, Reza G, Beach, Jeffrey, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

The Use of System Dynamics to Understand the Consequences of Project Controls with Dynamic Performance Measures in DoD Project Management

Description:: Project management has been a constant challenge for many practitioners, notably the U.S. Department of Defense (DoD) acquisitions community. While most DoD projects are technologically advanced, the tools and methods to manage these projects are the same as for simple, repetitive projects. The...
Author:: Cantwell, Patrick Reed
Keyword:: system dynamics, DoD, project management, and acquisitions
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Mazzuchi, Thomas A, Murphree, E. L., Wasek, James, Eftekari, Reza, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

Beyond Integration Readiness Level (IRL): A Multidimensional Framework to Facilitate the Integration of System of Systems

Description:: Integration Readiness Level (IRL) can be an effective systems engineering tool to facilitate integration of System of Systems (SoS). Further research in systems integration, analysis of major SoS integration data, and analysis of expert survey inputs to SoS integration can enhance the current IRL...
Author:: Eder, Clarence
Keyword:: System of Systems (SoS), Systems Integration, Technology Readiness Level (TRL), Integration Readiness Level (IRL), Department of Defense, and DoD Space Systems
GW Unit:: Systems Engineering
Degree:: D.Engr.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Mazzuchi, Thomas A, Blessner, Paul, Murphree, E. Lile, Sarkani, Shahram, and Olson, Bill
Resource Type:: Thesis or Dissertation

System Architecture to Support Model-based Design and Development of Optical Cochlear Implants

Description:: Market dynamics, technology spin-cycles, and affordability pressures are shaping development demands for medical devices.Model-based development offers a remedy for these pressures, with demonstrated ability to mitigate the complexity introduced. This dissertation will examine the program...
Author:: Byrne, Jennifer Coyle
Keyword:: Modeling, Cochlear Implants, Simulation, and Medical Devices
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Sarkani, Shahram, Wasek, James, Murphree, Lile, Johnson, Ray O, and Mazzuchi, Thomas A
Resource Type:: Thesis or Dissertation

A Study of the Contribution of Human Factors to Human-Machine System Failures in Dynamic Mission Operations

Description:: This study employed the taxonomy of human factors presented in the Department of Defense Human Factors and Analysis and Classification System (based largely on the previous HFACS model developed by Wiegmann and Shappell, and Reason's "Swiss cheese" model) model to analyze and compare the human...
Author:: Davis, TImothy Andrew
Keyword:: Human factors, Aviation mishaps, Naval aviation, Human-machine system, Mishap causal factors, and System failure
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Sarkani, Shahram, Alton, Jeffrey, Beach, Jeffrey, Murphree, Edward, Ryan, Julie, and Mazzuchi, Thomas A
Resource Type:: Thesis or Dissertation

EMERGENT BEHAVIOR OF THE US GOVERNMENT WORKFORCE: AN AGENT-BASED MODEL OF WORKER DEPARTURE

Description:: Over the past few decades, the public sector has seen significant change in the political and economic environment due to greater interdependencies between agencies and the private sector, globalization, and rapid technological change. The resulting uncertainty introduces a number of challenges...
Author:: Shapiro, Paul Todd
Keyword:: US government workforce, worker satisfaction, computational organization theory, emergent behavior, complex adaptive system, and agent based modeling
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Mazzuchi, Thomas A, Murphree, Edward L, Wasek, James, Fomin, Paul, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

A Framework for Implementing Systems Engineering Development of Complex Systems

Description:: The Department of Defense and the aerospace industry are responsible for decades of successful implementation of systems engineering process models used for the development of complex systems. The process models implemented throughout acquisition life cycles have proven to be comprehensive and...
Author:: Brunson, Karl Leonard
Keyword:: Aerospace Engineering, Program Management, Risk Management, System Development, Systems Engineering, and acquisition process
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Mazzuchi, Thomas A, Murphree, Edward L, Sarkani, Shahryar, Yen, Craig, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

Application of Multi-Criteria Decision Making Method to the DLA Energy Military Construction Portfolio Selection Process

Description:: Each year, the Department of Defense (DoD) is provided with an appropriation and authorization act from Congress known as the Military Construction (MILCON) program. The DoD delegates this financial authority to subordinate units for the purpose of funding the design and execution of new...
Author:: Sands, Clifford Samuel
Keyword:: Rank Order Centroid, Project Portfolio, TOPSIS, MCDA, and Multi-Criteria Decision Making
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: D.Engr.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Sarkani, Shahram, Earhardt, Gabriella, Bischoff, John, and Mazzuchi, Thomas A
Resource Type:: Thesis or Dissertation

A Proposed System-Level Performance Modeling Framework for Service Industries with Access to Limited Data

Description:: Business process optimization allows businesses to remain competitive by allowing management to observe, analyze, and improve the operations of the organization. Using data and related business insights developed through applied analytic disciplines to drive business process optimization allows...
Author:: Worrell, Sallamar Krystal Adonna
Keyword:: Process Improvement, Simulation, Optimization, and Performance Analysis
GW Unit:: Engineering Management
Degree:: D.Engr.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Sarkani, Shahram, Harrington, Afi D, and Mazzuchi, Thomas A
Resource Type:: Thesis or Dissertation

An Architecture for Agile Systems Engineering of Secure Commercial-off-the-Shelf Mobile Communications

Description:: The United States (U.S.) Federal Government has long had a need for highly secure communications. The National Security Agency (NSA) is responsible for the wide range of technologies to secure these communications. They realized, recently, that the development times for U.S. Government encryption...
Author:: Gump, Jamieson Wesley
Keyword:: CSfC, Secure, Reference Architecture, Architecture, COTS, and Mobile
GW Unit:: Engineering Management
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Olson, Bill A, Mazzuchi, Thomas A, Blessner, Paul L, Murphree, E Lile, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

Enhancing Model Based Forecasting of Geomagnetic Storms

Description:: Modern society is increasingly dependent on the smooth operation of large scale technology supporting Earth based activities such as communication, electricity distribution, and navigation. This technology is potentially threatened by global geomagnetic storms, which are caused by the impact of...
Author:: Webb, Alla
Keyword:
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Mazzuchi, Thomas A, Murphree, Edward L, Eveleigh, Timothy, Stankosky, Michael, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

Service-Oriented Architecture (SOA) Instantiation Within a Hard Real Time, Deterministic Combat System Environment

Description:: This research investigates the instantiation of a Service-Oriented Architecture (SOA) within a hard real-time (stringent time constraints), deterministic (maximum predictability) combat system (CS) environment. There are numerous stakeholders across the U.S. Department of the Navy who are...
Author:: Moreland, Jr., James Dennis
Keyword:: Service-Oriented Architecture, Services, Real-Time, Latency, Deterministic, and Gateway
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Sarkani, Shahram, Fomin, Pavel, Murphree, Edward L, Efekhari, Reza, Wasek, James S, and Mazzuchi, Thomas A
Resource Type:: Thesis or Dissertation

Problem Management: A System Engineering Management Framework

Description:: Problem management is not recognized as a system engineering process. Unlike risk management where risks could impact a project at some future date, problems impact the project now. Therefore, a robust problem management process should be established (similar to the risk management process...
Author:: Olson, Bill Allen
Keyword:: Problem, Systems, Engineering, Knowledge, and Risk
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Mazzuchi, Thomas A, Eveleigh, Timothy, Murphree, Lile, Sarkani, Shahram, and Stankosky, Michael
Resource Type:: Thesis or Dissertation

The Effects of Sustainable Development on Technological Innovation Performance - An Empirical Approach

Description:: Ever since the release of the Brundtland Report by the World Commission on Environment and Development (WCED, 1987), the sustainable development (SD) concept has been gaining more and more traction from a majority of research disciplines in the recent two decades. For instance, the impact of...
Author:: Yang, Eric Jen-Hsiang
Keyword:: Structural equation model, and Domini (KLD), Corporate sustainability performance, Lydenberg, Kinder, Maximum likelihood estimation, Sustainable development, and Technological innovation performance
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Sarkani, Shahram, Murphree, Lile, Fomin, Paul, Mazzuchi, Thomas A, and Wasek, James S
Resource Type:: Thesis or Dissertation

RISK PRECURSOR ANALYSIS: AN ASSESSMENT OF FLIGHT VARIABLES AFFECTING CIVIL AVIATION ACCIDENTS AND INCIDENTS

Description:: Flight safety has been an important topic for both academia and the industry. Aviation experts and authorities, as well as commercial airline administrators, have always been looking for improvements in the safety of flights. Researchers, on the other hand, have tried to model avionic fatalities...
Author:: Kashef, Mohammad
Keyword:: Flight Safety, Risk Management, Data Analysis, CCA, Systems Engineering, and Aviation Accidents
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Sarkani, Shahram, Blackburn, Timothy, Olson, Bill, Mazzuchi, Thomas A, and Murphree, E. Lile
Resource Type:: Thesis or Dissertation

A systems approach for designing a radio station layout for the U.S. National Airspace

Description:: Today's National Airspace System (NAS) is managed using an aging surveillance radar system. Current radar technology is not adequate to sustain the rapid growth of the commercial, civil, and federal aviation sectors and cannot be adapted to use emerging 21st century airspace surveillance...
Author:: Boci, Erton S.
Keyword:: aviation, ADS-B, RF propagation, radio stations layout, NextGen, and optimization
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Mazzuchi, Thomas A, Murphree, Edward L, Eveleigh, Timothy J, Bruno, Ronald, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

IDENTIFYING VARIANCE BETWEEN MATERIEL AND NON-MATERIEL SOLUTION REQUIREMENT ATTRIBUTES

Description:: In 2008, the Government Accountability Office (GAO) performed a study on 11 Department of Defense (DoD) programs and compared how requirements were developed between DoD and private industry. The study found that the DoD did not follow good Systems Engineering practices when developing...
Author:: Rettaliata, Justin Michael
Keyword:: Requirement Attributes, Non-Materiel Solution, Materiel Solution, Requirements Development, and Systems Engineering
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Mazzuchi, Thomas A, Bischoff, John, Murphree, E Lile, Dever, Jason, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

A Preliminary Framework For Test and Evaluation of Systems of Systems

Description:: Modern systems are becoming exponentially more complex and interconnected, particularly in software-intensive systems. Department of Defense (DoD) mandates for net-centric capabilities have greatly complicated the challenges for testing new and legacy systems that are employed in a system of...
Author:: McDermott, Edwin Peter
Keyword:: Framework, Evaluation, Systems, Test, and System
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Sarkani, Shahram, Murphree, Edward L, Holzer, Thomas, Stankosky, Michael, and Mazzuchi, Thomas A
Resource Type:: Thesis or Dissertation

Application of a Hidden Naïve Bayes Multiclass Classifier in Network Intrusion Detection

Description:: With increasing Internet connectivity and traffic volume, recent intrusion incidents have reemphasized the importance of network intrusion detection systems for combating increasingly sophisticated network attacks. Techniques such as pattern recognition and the data mining of network events are...
Author:: Koc, Levent
Keyword:: data mining, Denial-of-Services (DoS), intrusion detection systems, Hidden Naïve Bayes (HNB), and multiclass classification
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Mazzuchi, Thomas A, Holzer, Thomas, Murphree, Lile, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

Managing Operational Risk and Performance Drift as a Function of the “Nuclear Work Model”

Description:: High Reliability Organizations are organizations that have fewer than the average number of high-consequence accidents. “Heinrich’s Law” states that the industrial average of the ratio of high-consequence accidents to total recordable accidents is 1:330. This represents an average of one...
Author:: Newton, Dorian Gregory
Keyword:: Best practices, Facilities management, Operations research, Error-free operations, Conduct of Operations, and Engineering managemen
GW Unit:: Engineering Management
Degree:: D.Engr.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A
Committee Member(s):: Mazzuchi, Thomas A, Morgan, Glenn J, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

Functional Gain and Change Mechanisms in Post-Production Complex Systems

Description:: This research was motivated by the need for functional change of complex systems in post-production. Through an initial empirical study, this research found pathways to functional change with minimal change to form; thus avoiding the high risk of material change propagation that has been a...
Author:: Cox, Amy Marie
Keyword:: User Innovation, Design for Changeability, User Design, Flexibility, and Robust
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Szajnfarber, Zoe
Committee Member(s):: Mazzuchi, Thomas A, Deason, Jonathan P, Gralla, Erica L, Szajnfarber, Zoe, and Jacques, David R
Resource Type:: Thesis or Dissertation

ANALYSIS OF RELIABILITY USING REAL MASKED SYSTEM LIFE DATA

A Framework for Considering Uncertainty within the Context of a Network-Centric Semantic Web: A Mine Warfare Example

The Use of System Dynamics to Understand the Consequences of Project Controls with Dynamic Performance Measures in DoD Project Management

Beyond Integration Readiness Level (IRL): A Multidimensional Framework to Facilitate the Integration of System of Systems

System Architecture to Support Model-based Design and Development of Optical Cochlear Implants

A Study of the Contribution of Human Factors to Human-Machine System Failures in Dynamic Mission Operations

EMERGENT BEHAVIOR OF THE US GOVERNMENT WORKFORCE: AN AGENT-BASED MODEL OF WORKER DEPARTURE

A Framework for Implementing Systems Engineering Development of Complex Systems

Application of Multi-Criteria Decision Making Method to the DLA Energy Military Construction Portfolio Selection Process

A Proposed System-Level Performance Modeling Framework for Service Industries with Access to Limited Data

An Architecture for Agile Systems Engineering of Secure Commercial-off-the-Shelf Mobile Communications

Enhancing Model Based Forecasting of Geomagnetic Storms

Service-Oriented Architecture (SOA) Instantiation Within a Hard Real Time, Deterministic Combat System Environment

Problem Management: A System Engineering Management Framework

The Effects of Sustainable Development on Technological Innovation Performance - An Empirical Approach

RISK PRECURSOR ANALYSIS: AN ASSESSMENT OF FLIGHT VARIABLES AFFECTING CIVIL AVIATION ACCIDENTS AND INCIDENTS

A systems approach for designing a radio station layout for the U.S. National Airspace

IDENTIFYING VARIANCE BETWEEN MATERIEL AND NON-MATERIEL SOLUTION REQUIREMENT ATTRIBUTES

A Preliminary Framework For Test and Evaluation of Systems of Systems

Application of a Hidden Naïve Bayes Multiclass Classifier in Network Intrusion Detection

Managing Operational Risk and Performance Drift as a Function of the “Nuclear Work Model”

Functional Gain and Change Mechanisms in Post-Production Complex Systems

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