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Articles 151 - 179 of 179

Full-Text Articles in Engineering

Delayed-Bang Approach Towards More Sustainable Critical Infrastructure Risk Management, C. Ariel Pinto, Michael K. Mcshane, Abhishek S. Pathak Jan 2011

Delayed-Bang Approach Towards More Sustainable Critical Infrastructure Risk Management, C. Ariel Pinto, Michael K. Mcshane, Abhishek S. Pathak

Finance Faculty Publications

This article describes the Delayed Bang Approach for determining the value of risk management alternatives in critical infrastructure security. The discussion includes (1) the need for sustainable risk management (2) the importance of time valuation in evaluating competing loss prevention and loss reduction alternatives, (3) the convergence of deterministic engineering economics, survivability analysis, and probabilistic analysis, and (4) hypothetical examples of the Delayed-Bang Approach and significance towards more sustainable risk management.


Selection Of Source And Use Of Traffic Information In Emergency Situations, R. Michael Robinson, Asad Khattak Jan 2011

Selection Of Source And Use Of Traffic Information In Emergency Situations, R. Michael Robinson, Asad Khattak

VMASC Publications

The access and the use of advanced traveler information systems (ATISs) by drivers during normal commuting have been extensively assessed and analyzed. Emergency managers and transportation officials have extended the results of studies of ATIS use under routine conditions to emergency scenarios under the assumption that drivers' responses to information under emergency conditions mimic those seen under normal driving conditions. A recent survey of potential hurricane evacuees suggests the need to revisit this assumption. Results indicate that although commercial radio reports and variable message signs continue to be the sources of traffic information cited the most frequently, other information sources …


The Influence Of Network Factors On Network Centric Operations, Mehmet Fidanci Jul 2010

The Influence Of Network Factors On Network Centric Operations, Mehmet Fidanci

Engineering Management & Systems Engineering Theses & Dissertations

As Information Age changes the lifestyle of all humankinds, it also changes the way how to defense and secure the borders are secured and defended. The Information Age is about information superiority. It evolves the command and control concept, proactively, to optimize the size of the units and their connections within a combat force for effective mission accomplishment. The biggest issue is how big a unit will be and how they will arrange and connect it to the command and control structure in order for the unit to be effective on the battlefield. While some arrangements connect to each other …


Climate Change And Sea Level Rise Initiative (Ccslri), Larry P. Atkinson Jan 2010

Climate Change And Sea Level Rise Initiative (Ccslri), Larry P. Atkinson

CCSLRI Brochures

Brochure of the Old Dominion University Climate Change and Sea Level Rise Initiative (CCSLRI)


Challenges For Human, Social, Cultural, And Behavioral Modeling, S. K. Numrich, Andreas Tolk Jan 2010

Challenges For Human, Social, Cultural, And Behavioral Modeling, S. K. Numrich, Andreas Tolk

Computational Modeling & Simulation Engineering Faculty Publications

Today's military focus has moved away from the force-on-force battlefield of the past century and into the domain of irregular warfare and its companion security, stability, transition and reconstruction missions. With that change in focus has come a need to examine the operational environment from a wider perspective, one that includes the whole range of human experiences and circumstances. As the set of factors and list of players expands, the need for reliable modeling and simulation increases, if for no other reason than to help the human decision maker make sense of this expanded decision space. However, to do this, …


Towards A Center For Modeling And Simulation: The Case For Jordan, Ghaith Rabadi, Hazem Kaylani, Joseph Barjis (Ed.), Murali Mohan Narasipuram (Ed.), Ghaith Rabadi (Ed.), Jolita Ralyt (Ed.), Pierluigi Plebani (Ed.) Jan 2010

Towards A Center For Modeling And Simulation: The Case For Jordan, Ghaith Rabadi, Hazem Kaylani, Joseph Barjis (Ed.), Murali Mohan Narasipuram (Ed.), Ghaith Rabadi (Ed.), Jolita Ralyt (Ed.), Pierluigi Plebani (Ed.)

Engineering Management & Systems Engineering Faculty Publications

Modeling and Simulation (M&S) has recently become an important area that is pursued by many researchers and practitioners due to the role it plays in understanding complex systems and problems. We have therefore witnessed the establishment of many M&S organizations in the last two decades especially in the more developed world. Less developed countries are starting to recognize the need for such capability especially that the problems they face are not less complex. In this paper, we present a preliminary study towards a business plan for establishing a scientific center for Modeling, Analysis, Simulation and Animation in Jordan (JoSAMA) and …


Route Change Decision Making By Hurricane Evacuees Facing Congestion, R. Michael Robinson, Asad Khattak Jan 2010

Route Change Decision Making By Hurricane Evacuees Facing Congestion, R. Michael Robinson, Asad Khattak

VMASC Publications

Successful evacuations of metropolitan areas require overcoming unexpected congestion that reduces traffic flows. Congestion may result from accidents, incidents, or other events that reduce road capacity. Traffic professionals and emergency managers may promote deviations from planned routes to bypass an area of congestion and speed mass exit. However, some route changes may actually reduce traffic flow rates, and in these cases decision makers may want to discourage use of alternate routes. By using results of a behavioral survey of potential hurricane evacuees, this study identifies variables associated with the decision to alter routes and also identifies frequently used information sources. …


Towards The Quantitative Analysis Of The Connectivity Value Of Networked Operations, Dean Deller Apr 2009

Towards The Quantitative Analysis Of The Connectivity Value Of Networked Operations, Dean Deller

Engineering Management & Systems Engineering Theses & Dissertations

While the nature of and the approach to command and control is evolving in order to meet the challenges of Information Age warfare, the essential functions that must be accomplished remain constant. One of those essential functions is the arrangement of the assets within a combat force. Certainly, the many different ways to arrange a given set of assets will have different impacts on the combat effectiveness of the force. Some arrangements will enable self-synchronization, while other arrangements will impede it. How then, should an Information Age combat force be organized in order to optimize its effectiveness?

The concept of …


Harmonizing Bml Approaches: Grammars And Data Models For A Bml Standard, Dietmar Kunde, Thomas Orichel, Andreas Tolk, Ulrich Schade, Michael R. Hieb Jan 2009

Harmonizing Bml Approaches: Grammars And Data Models For A Bml Standard, Dietmar Kunde, Thomas Orichel, Andreas Tolk, Ulrich Schade, Michael R. Hieb

Computational Modeling & Simulation Engineering Faculty Publications

Battle Management Language (BML) is being developed as an open standard that unambiguously formalizes and specifies Command and Control information, including orders and reports built upon precise representations of tasks. BML is a language specification, based on doctrine and consistent with Coalition standards. The goal of BML is to enable and improve the interoperability in the C2 area, especially by enabling also the military communication with simulation systems and future robotic forces.

Although the need for BML is well documented, a SISO standard has still not been achieved. At present, there are two recommended approaches focusing on different aspects. In …


Utilizing Strategic Project Management Processes And The Nato Code Of Best Practice To Improve Management Of Experimentation Events, Andreas Tolk, Rafael E. Landaeta, Robert H. Kewley, Thomas T. Litwin Jan 2009

Utilizing Strategic Project Management Processes And The Nato Code Of Best Practice To Improve Management Of Experimentation Events, Andreas Tolk, Rafael E. Landaeta, Robert H. Kewley, Thomas T. Litwin

Computational Modeling & Simulation Engineering Faculty Publications

Systems engineering and project management are two core engineering management processes supported by core quantitative disciplines within engineering management problems. Traditional approaches to systems engineering focus on a single system being engineered and managed (i.e., project managed), while challenges addressing composition of systems of systems and the reuse of systems for new solutions require a strategic management approach that promote a process flow in which the outputs of one project (e.g., deliverables, knowledge, work documents) are captured for the benefit of other projects within and outside the project-based organization. Two other core processes of engineering management are therefore critical to …


Exploring Primitives Of Meaning In Support Of Interoperability, Charles D. Turnitsa, Andreas Tolk, Robert Kewley Jan 2009

Exploring Primitives Of Meaning In Support Of Interoperability, Charles D. Turnitsa, Andreas Tolk, Robert Kewley

Computational Modeling & Simulation Engineering Faculty Publications

Semantic mismatch between systems is due, in part, to the grouping together of terms who have defined meaning in different levels of granularity, and which are composed together into different groupings by distinct systems. It has been proposed that making use of elemental concepts (referred to here as primitives of meaning) can assist in interoperability, but seeking to define all terms at a level of granularity equal to or greater than that of all involved systems.

By decomposing a system’s groups of composed terms into primitives of meaning, the building blocks that can be reassembled into the compositions required by …


Applying Model-Based Data Engineering To Evaluate The Alignment Of Information Modeled Within Jc3iedm, Msdl, And Matrex-Fom, Anil Ustun, Andreas Tolk, Saikou Diallo Jan 2009

Applying Model-Based Data Engineering To Evaluate The Alignment Of Information Modeled Within Jc3iedm, Msdl, And Matrex-Fom, Anil Ustun, Andreas Tolk, Saikou Diallo

Computational Modeling & Simulation Engineering Faculty Publications

The need for a common representation of entities and their relations to support the easier composition and federation of independently developed solutions in support of the user has been identified and addressed in several papers presented during recent simulation interoperability workshop. One of the underlying assumptions is that standards derived from the same conceptual domain can easily be converted into each others, as they deal with the same concepts. In a project conducted for the U.S. Army’s Program Executive Office (PEO) Soldier, three of such solutions for military operations (with focus on the land forces) were utilized to capture the …


C2 Domain Ontology Within Our Lifetime, Leslie Winters, Andreas Tolk Jan 2009

C2 Domain Ontology Within Our Lifetime, Leslie Winters, Andreas Tolk

Computational Modeling & Simulation Engineering Faculty Publications

Agile Command and Control (C2) requires agile information sharing with an increasingly wide variety of military and non-military partners. While current net-centric approaches may improve information sharing within a particular niche of C2, they do not support information sharing across the larger C2 domain. Although not a silver bullet, the development and application of a C2 domain ontology to improve C2 data and service integration appears to be increasingly realistic. In fact, there are several examples of successful ontology applications in domains such as medicine, biology, and engineering, and the new discipline of Applied Ontology is emerging. C2 data, architecture, …


Developing A Repeatable And Reliable Methodology To Determine Return-On-Investment, Mark Cullen Nesselrode Apr 2008

Developing A Repeatable And Reliable Methodology To Determine Return-On-Investment, Mark Cullen Nesselrode

Computational Modeling & Simulation Engineering Theses & Dissertations

The high costs of modern weapons systems, fuel, personnel, and increasing environmental awareness is forcing U.S. forces to rely on simulation for training. Further, the need to train in a robust and theater specific environment is critical to ensure operational readiness immediately upon reaching the combat theater. Finally, the rapidly changing nature of the conflicts, crises, or contingencies in which U.S. forces are involved requires a new approach to training.

The purpose of this research is to develop and demonstrate the feasibility of a methodology that can provide a reliable, consistent method for determining ROI in various forms, focusing on …


Integrating Game Technology And Discrete Event Simulation To Analyze Mass Casualty Scenarios, Jason Loveland Oct 2007

Integrating Game Technology And Discrete Event Simulation To Analyze Mass Casualty Scenarios, Jason Loveland

Computational Modeling & Simulation Engineering Theses & Dissertations

In the last 10 years, video games have become complex simulation environments with high resolution 3D graphics enabled by powerhouse rendering engines, multi-player client server networks, user friendly displays and graphical user interface , while remaining relatively inexpensive. There is a critical need for systems engineering analysis and rapid trade studies due to changes in operations caused by current events such as terrorist attacks, asymmetric threats, natural disasters, etc. Modem games provide a unique way to visualize and interact with these complex environments, scenarios, missions, and operations. A discrete event simulator (DES) provides an environment to model system architecture behavior, …


Robustness And Control Of A Magnetically Levitated Transportation System, Grzegorz Oleszczuk Jan 2006

Robustness And Control Of A Magnetically Levitated Transportation System, Grzegorz Oleszczuk

Mechanical & Aerospace Engineering Theses & Dissertations

Electromagnetic suspension of Magnetic Levitation Vehicles (Maglev) has been studied for many years as an alternative to wheel-on rail transportation systems. In this work, design and implementation of control systems for a Maglev laboratory experiment and a Maglev vehicle under development at Old Dominion University are described. Both plants are modeled and simulated with consideration of issues associated with system non-linearity, structural flexibility and electromagnetic force modeling. Discussion concerning different control strategies, namely centralized and decentralized approaches are compared and contrasted in this work. Different types of electromagnetic non-linearities are considered and described to establish a convenient method for modeling …


Coalition Battle Management Language (C-Bml) Study Group Final Report, Major Kevin Galvin, Mike Hieb, Andreas Tolk, Charles Turnitsa, Curtis Blais, James Montgomery Dec 2005

Coalition Battle Management Language (C-Bml) Study Group Final Report, Major Kevin Galvin, Mike Hieb, Andreas Tolk, Charles Turnitsa, Curtis Blais, James Montgomery

Computational Modeling & Simulation Engineering Faculty Publications

Interoperability across Modeling and Simulation (M&S) and Command and Control (C2) systems continues to be a significant problem for today's warfighters. M&S is well-established in military training, but it can be a valuable asset for planning and mission rehearsal if M&S and C2 systems were able to exchange information, plans, and orders more effectively. To better support the warfighter with M&S based capabilities, an open standards-based framework is needed that establishes operational and technical coherence between C2 and M&S systems.


Quantifying Vulnerability To Critical Infrastructure, Barry Charles Ezell Apr 2005

Quantifying Vulnerability To Critical Infrastructure, Barry Charles Ezell

Engineering Management & Systems Engineering Theses & Dissertations

Military and civilian leaders have the responsibility to protect our Nation's critical infrastructure, communities, and symbols of American power from terrorists, home and abroad, as well as from natural disasters. To this end, assessments are conducted to reduce vulnerability. The literature offers multiple definitions of vulnerability and measurement has not been adequately addressed. Thus, the purpose of this research has been to develop and deploy a systems-based model that quantifies vulnerability to critical infrastructure. This research defines critical infrastructure vulnerability as a measure of the susceptibility of critical infrastructure to threat scenarios. Vulnerability is a function of (1) threat scenario, …


Modeling Of Commercial Maritime Port Recoverability From Security Disruptions: Work-In-Progress, C. Ariel Pinto, Wayne K. Talley Jan 2005

Modeling Of Commercial Maritime Port Recoverability From Security Disruptions: Work-In-Progress, C. Ariel Pinto, Wayne K. Talley

Engineering Management & Systems Engineering Faculty Publications

This article describes active research in commercial maritime port's recovery from security disruptions which explores the synergy of economic and simulation models in investigating the recoverability of ports after security incidents. Previous study has identified decision variables and throughput simulation models of port operation. However, none of these models have been utilized to investigate port's recovery from a security disruption and in evaluating recoverability investments. The method of research includes analysis of recorded disruptions, identification of impediments to recovery and investment criteria for recoverability. This article provides managers insight into including security and continuity of operation in managing various types …


Common Data Administration, Data Management, And Data Alignment As A Necessary Requirement For Coupling C4isr Systems And M&S Systems, Andreas Tolk Jan 2003

Common Data Administration, Data Management, And Data Alignment As A Necessary Requirement For Coupling C4isr Systems And M&S Systems, Andreas Tolk

Computational Modeling & Simulation Engineering Faculty Publications

Within the application domain of military simulation systems, training and exercises as well as support to real operations require the coupling of the simulation system delivering the needed functionality with the Command, Control, Computing, Communications, Intelligence, Surveillance, and Reconnaissance (C4ISR) system providing the necessary data. The solution to this challenge is to build appropriate interfaces. Although in long term a more integrated approach will be necessary, in short and mid term, gateways and interfaces are likely to remain the standard. However, in order to succeed with the respective efforts, at least on the data level of interoperability, a common solution …


Nato Code Of Best Practice For C2 Assessment, Dave Alberts, Tim Bailey, Paul Choinard, Andreas Tolk, Gary Wheatley, John Wilder Oct 2002

Nato Code Of Best Practice For C2 Assessment, Dave Alberts, Tim Bailey, Paul Choinard, Andreas Tolk, Gary Wheatley, John Wilder

Computational Modeling & Simulation Engineering Books

This major revision to the Code of Best Practice (COBP) for C2 Assessment is the product of a NATO Research and Technology Organisation (RTO) sponsored Research Group (SAS-026). It represents over a decade of work by many of the best analysts from the NATO countries. A symposium (SAS-039) was hosted by the NATO Consultation Command Control Agency (NC3A) that provided the venue for a rigorous peer review of the code. This new version of the COBP for C2 assessment builds upon the initial version of the COBP produced by SAS-002. The earlier version focused on the analysis of …


Model Scheme A Good Fit For C4isr, Andreas Tolk Jan 2002

Model Scheme A Good Fit For C4isr, Andreas Tolk

Computational Modeling & Simulation Engineering Faculty Publications

No abstract provided.


A Task Process Pre-Experimental Model, Holly A. H. Handley, Alexander H. Lewis Jan 2002

A Task Process Pre-Experimental Model, Holly A. H. Handley, Alexander H. Lewis

Engineering Management & Systems Engineering Faculty Publications

The Adaptive Architectures for Command and Control (A2C2) program is a multidisciplinary program that employs a scientific basis for designing and analyzing adaptive and reconfigurable organizational structures at the Joint Task Force level. As part of its unique model-driven experimentation method, a pre-experimental model is created to support the formulation of hypotheses, the determination of key variables and parameter values, and the prediction of organizational performance. The pre-experimental model is used to explore the parameters of the experimental design in order to determine the appropriate region to conduct officer-in-the-loop experiments at the Naval Postgraduate School. A pre-experimental model based on …


Continuity In Dynamic Coalition Operations, Holly A. H. Handley, Larry K. Wentz, Alexander H. Levis Jan 2002

Continuity In Dynamic Coalition Operations, Holly A. H. Handley, Larry K. Wentz, Alexander H. Levis

Engineering Management & Systems Engineering Faculty Publications

The combination of participating organizations in a coalition operation often changes over time; the coalition is dynamic and evolves over the course of its mission. A given organization may participate in the coalition only at the stage where its expertise or resources are most needed, while other organizations may participate through the entire course of the operation. As these are independent organizations coming together for a limited time to meet a specific goal, the structure of the coalition must be able to accommodate the different command arrangements, procedures, and other characteristics of each organization. In order to develop a theory …


Incorporating Heterogeneity In Command Center Interactions, Holly A. H. Handley, Alexander H. Levis Jan 2001

Incorporating Heterogeneity In Command Center Interactions, Holly A. H. Handley, Alexander H. Levis

Engineering Management & Systems Engineering Faculty Publications

One of the many complexities of multinational coalition operations stems from differences in culture, military procedures, and command and control processes between the cooperating command centers. These differences can influence the interactions between decision makers of different command centers and can affect the outcome of the coalition operation. A coalition model, composed of individual models of the five-stage interacting decision maker model, was used in a virtual experiment. The subjective parameters included in the decision maker model can be any attribute that characterizes the heterogeneity of the decision makers. In this case, the parameters of power distance and uncertainty avoidance …


Levels Of Interoperability In Coalition Systems, Holly A. H. Handley, Alexander H. Levis, Michel Bares Jan 2001

Levels Of Interoperability In Coalition Systems, Holly A. H. Handley, Alexander H. Levis, Michel Bares

Engineering Management & Systems Engineering Faculty Publications

Systems of different command centers that are brought together in a coalition operation must have some level of interoperability in order to work together. Bares [2000] has introduced a formalism of three interoperability domains that describe the ability of the systems to define their own level of interoperability within the coalition by assessing their own and the other systems’ ability to interact on actions of the coalition. The lowest domain, interconnectivity, reflects the ability to exchange messages; this level must already have been achieved in order for the systems to participate in the coalition. The second domain, interoperability, reflects a …


Developing A Parametric Cost Model For Operating Costs Of Army Ground Combat Weapon Systems, James O. Winbush Jr. Jan 2000

Developing A Parametric Cost Model For Operating Costs Of Army Ground Combat Weapon Systems, James O. Winbush Jr.

Engineering Management & Systems Engineering Theses & Dissertations

The purpose of this research was to develop a parametric cost model for predicting operating costs of Army ground combat weapon systems. The model is intended to be used during the first two phases of the Army's acquisition process. The research necessary to develop the model was guided by two questions: what weapon system characteristics (such as weight, horsepower, fuel consumption, primary mission, NBC protection, fire control and night fighting capability) impact directly on operating ground combat systems; and what is the form of the parametric model for operating costs for ground combat systems? The study extends the bounds of …


Materials Recovery Facilities In The United States Virgin Islands: A Regional Facilities Location Model Study, Lloyd O. Prince Jr. Jan 1994

Materials Recovery Facilities In The United States Virgin Islands: A Regional Facilities Location Model Study, Lloyd O. Prince Jr.

Engineering Management & Systems Engineering Theses & Dissertations

Continental municipalities have derived many benefits from the economies of scale associated with a regional approach to facilities location and management planning. Centralized solid waste processing facilities is an example. Island communities, however, surrounded by miles of ocean, are constrained to a fragmented approach to the facilities location solution. This research was conducted to determine if the regional paradigm suggested in the literature is applicable to a set of island communities connected by an ocean transportation infrastructure. A linear programming (LP) model, constraints and data requirements were developed and applied to a network of islands. A series of hypothetical material …


Mine Warfare In The Russian And Soviet Navies, Jeffrey K. Bray May 1989

Mine Warfare In The Russian And Soviet Navies, Jeffrey K. Bray

Graduate Program in International Studies Theses & Dissertations

This thesis examines the development of technology, tactics, strategy, and organization of mine warfare in the Russian and Soviet navies from 1807 to the present. The author reviews the trials and tribulations of the development of naval mines and their employment within these two navies. This development has been primarily driven by the needs of war and advances of technology. In spite of occasional setbacks, the Russian and Soviet mine warfare forces continued to provide support to the overall naval and central policies of their respective governments. This support has often been during times of high tension and limited resources. …