Digital Commons Network^™

Understanding The Emergence Of Disruptive Innovation In The Air Force Science And Technology Organizations, David E. Shahady

Theses and Dissertations

Although innovation is widely discussed in both military and industry venues, many organizations continue to struggle with what it means to be creative as well as maintain a competitive advantage. The United States Air Force has specifically struggled with the balance between improving existing technologies and employing revolutionary technologies. The purpose of this thesis was to study the motivation, focus, barriers, and culture needed to foster disruptive innovation in Air Force Science and Technology (S&T) and to investigate how industry innovation strategies could improve breakthrough Air Force technology emergence. The Air Force Research Laboratory (AFRL), the primary organization responsible for …

Extending Cfd Modeling To Near-Continuum Flows Using Enhanced Thermophysical Modeling, Abram E. Claycomb

Theses and Dissertations

The constitutive relations found in traditional Navier-Stokes-based computational fluid dynamics solvers are known to be limited in altitude. The presence of nonequilibrium phenomena beyond what these methods are able to predict becomes more prevalent at higher altitudes, or increasing Knudsen number. The bulk viscosity, normally assumed to be zero in most computational fluid dynamics applications, is examined as a means of increasing the range of applicability of computational fluid dynamics. The bulk viscosity model used was from recent calculations available in the literature, from a new anisotropic potential energy surface, and is restricted to temperatures below 2000 K. The normal …

John Brown's Constitution, Robert L. Tsai

Schmooze 'tickets'

No abstract provided.

Sacrifice And Civic Membership: Who Earns Rights, And When?, Julie Novkov

Schmooze 'tickets'

No abstract provided.

The Missouri Miner, March 6, 2008

The Missouri Miner Newspaper

No abstract provided.

Dialable Cryptography For Wireless Networks, Marnita T. Eaddie

Theses and Dissertations

The objective of this research is to develop an adaptive cryptographic protocol, which allows users to select an optimal cryptographic strength and algorithm based upon the hardware and bandwidth available and allows users to reason about the level of security versus the system throughput. In this constantly technically-improving society, the ability to communicate via wireless technology provides an avenue for delivering information at anytime nearly anywhere. Sensitive or classified information can be transferred wirelessly across unsecured channels by using cryptographic algorithms. The research presented will focus on dynamically selecting optimal cryptographic algorithms and cryptographic strengths based upon the hardware and …

Developing A Reference Framework For Cybercraft Trust Evaluation, Shannon E. Hunt

Theses and Dissertations

It should be no surprise that Department of Defense (DoD) and U.S. Air Force (USAF) networks are the target of constant attack. As a result, network defense remains a high priority for cyber warriors. On the technical side, trust issues for a comprehensive end-to-end network defense solution are abundant and involve multiple layers of complexity. The Air Force Research Labs (AFRL) is currently investigating the feasibility of a holistic approach to network defense, called Cybercraft. We envision Cybercraft to be trusted computer entities that cooperate with other Cybercraft to provide autonomous and responsive network defense services. A top research goal …

A Hybrid Communications Network Simulation-Independent Toolkit, David M. Dines

Theses and Dissertations

Net-centric warfare requires information superiority to enable decision superiority, culminating in insurmountable combat power against our enemies on the battlefield. Information superiority must be attained and retained for success in today’s joint/coalition battlespace. To accomplish this goal, our combat networks must reliably, expediently and completely deliver over a wide range of mobile and fixed assets. Furthermore, each asset must be given special consideration for the sensitivity, priority and volume of information required by the mission. Evolving a grand design of the enabling network will require a flexible evaluation platform to try and select the right combination of network strategies and …

Mustang Daily, March 5, 2008

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

The Daily Egyptian, March 05, 2008, Daily Egyptian Staff

March 2008

No abstract provided.

Increasing Combat Aircraft Survivability Through Coherent Self-Protection Jammers, Soner Ozer

Theses and Dissertations

When the battlefields were within the visual range, the objective of deception tactics in warfare was to deceive the human senses. In the battlefield of electromagnetic spectrum, the objective of deception is to deceive the sensors of the enemy weapon systems. The survivability of the aircraft operating in hostile environment is of prime importance to the mission planner. If the aircraft can deny its location information to the tracking radar of the radar guided threat missile system, this, in return, may increase its survivability. The deception, a tactic which stems from the wisdom of ancient battles, incarnated in the form …

The Lumberjack, March 05, 2008

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.

Operationalizing Offensive Social Engineering For The Air Force, Bryan E. Skarda

Theses and Dissertations

Social engineering is the art and science of persuading individuals to bypass in place security mechanisms causing the unintended release of information. It is a low tech solution to a high tech problem and is as much an art as a science. As is true of many such solutions, social engineering is both ill-defined yet extremely effective. Its low cost, high payoff nature makes it an extremely attractive alternative to adversaries that do not have access to all the resources of a nation state. However, with full backing, the weapon can become that much more effective. Social engineering is something …

Feasibility Study Of Encoding Operational Mission Metadata Into Ipv6 Packet Headers, Timothy R. Policarpio

Theses and Dissertations

The purpose of this research is to determine the feasibility of using the header fields and header extensions of IPv6 packets to encode mission metadata into computer network streams. Specifically, this thesis seeks to answer several research questions addressing the performance of different packet header encoding methods, specifically which method provides the least end-to-end delay of a file transfer over a hypothetical network as well as which method produces the least amount of additional network overhead during its operation in the hypothetical network. The research questions are answered through a comprehensive literature review and with the use of several network …

Spartan Daily, March 4, 2008, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 130, Issue 23

Three-Dimensional Structure Of Conotoxin Tx3a: A M-1 Branch Peptide Of The M-Superfamily, Owen M. Mcdougal, Matthew W. Turner, Andrew J. Ormond, C. Dale Poulter

Chemistry and Biochemistry Faculty Publications and Presentations

The M-superfamily, one of eight major conotoxin superfamilies found in the venom of the cone snail, contains a Cys framework with disulfide-linked loops labeled 1, 2, and 3 (- CC¹C²C³CC-). M-superfamily conotoxins can be divided into the m-1, -2, -3 and -4 branches, based upon the number of residues located in the third Cys loop between the fourth and fifth Cys residues. Here we provide a three-dimensional solution structure for the m-1 conotoxin tx3a found in the venom of Conus textile. The 15 amino acid peptide, CCSWDVCDHPSCTCC, has disulfide bonds between Cys^{1 …}

Improvement Of Ecm Techniques Through Implementation Of A Genetic Algorithm, James D. Townsend

Theses and Dissertations

This research effective effort develops the necessary interfaces between the radar signal processing components and an optimization routine, such as genetic algorithms, to develop Electronic Countermeasure (ECM) waveforms under a Hardware-in-the-Loop (HILS) architecture. The various ECM waveforms are stored in an ECM library, where an operator selects the desired function to use against a particular system. This optimization works with modular components, compared to previous research that embedded a genetic algorithm into the Range Gate Pull-off (RGPO) waveform optimization loop, which can be interchanged based upon the operator's desired hardware/ software testing setup. The ECM library's first entries contain the …

Most Popular Downloads -- February 2008

Institutional Repository Information

This month’s most popular article, “RODENTS AS A FOOD SOURCE,” (from the Proceedings of the Fourteenth Vertebrate Pest Conference 1990) was referenced by food blogger Jesse Sharrad at http://corduroyorange.com/?p=273 and experienced 50 to 100 hits daily for several weeks afterwards. Interesting article, but lately I’ve been eyeing the campus squirrels and thinking “Brunswick stew”.

Other newcomers to the top of the list include Roscoe Pound’s classic essay “Justice according to Law” (from The Mid-West Quarterly 1914), which has a link from the Wikipedia article on Pound.

Theodore Parker’s “Strauss’s Life of Jesus,” an 1840 review from the Christian Examiner of …

The Daily Gamecock, Monday, March 3, 2008, University Of South Carolina, Office Of Student Media

March

No abstract provided.

Exploitation Of Self Organization In Uav Swarms For Optimization In Combat Environments, Dustin J. Nowak

Theses and Dissertations

This investigation focuses primarily on the development of effective target engagement for unmanned aerial vehicle (UAV) swarms using autonomous self-organized cooperative control. This development required the design of a new abstract UAV swarm control model which flows from an abstract Markov structure, a Partially Observable Markov Decision Process. Self-organization features, bio-inspired attack concepts, evolutionary computation (multi-objective genetic algorithms, differential evolution), and feedback from environmental awareness are instantiated within this model. The associated decomposition technique focuses on the iterative deconstruction of the problem domain state and dynamically building-up of self organizational rules as related to the problem domain environment. Resulting emergent …

Collision Avoidance For Uavs Using Optic Flow Measurement With Line Of Sight Rate Equalization And Looming, Paul J. Shelnutt

Theses and Dissertations

A series of simplified scenarios is investigated whereby an optical flow balancing guidance law is used to avoid obstacles by steering an air vehicle between fixed objects/obstacles. These obstacles are registered as specific points that can be representative of features in a scene. The obstacles appear in the field of view of a single forward looking camera. First a 2-D analysis is presented where the rate of the line of sight from the vehicle to each of the obstacles to be avoided is measured. The analysis proceeds by initially using no field of view (FOV) limitations, then applying FOV restrictions, …

A Secure Group Communication Architecture For A Swarm Of Autonomous Unmanned Aerial Vehicles, Adrian N. Phillips

Theses and Dissertations

This thesis investigates the application of a secure group communication architecture to a swarm of autonomous unmanned aerial vehicles (UAVs). A multicast secure group communication architecture for the low earth orbit (LEO) satellite environment is evaluated to determine if it can be effectively adapted to a swarm of UAVs and provide secure, scalable, and efficient communications. The performance of the proposed security architecture is evaluated with two other commonly used architectures using a discrete event computer simulation developed using MatLab. Performance is evaluated in terms of the scalability and efficiency of the group key distribution and management scheme when the …

164th Infantry News: March 2008, 164th Infantry Association

164th Infantry Regiment Publications

March 2008 edition of the 164th Infantry News. A total of 32 pages, containing news articles, event notices, photographs, and personal memories from the veterans of the 164th Infantry Regiment.

Mole Street Journal, March 2008, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry

Mole Street Journal

No abstract provided.

2007 Annual Report Of The Graduate School Of Engineering And Management, Air Force Institute Of Technology, Office Of Research And Sponsored Programs, Graduate School Of Engineering And Management, Afit

AFIT Documents

The Graduate School's Annual Report highlights research focus areas, new academic programs, faculty accomplishments and news, and provides top-level sponsor-funded research data and information.

Institutions And Demographic Responses To Shocks: Wuerttemberg, 1634-1870, Timothy W. Guinnane, Sheilagh Oglivie

Discussion Papers

No abstract provided.

Review Of Schutt's "Peoples Of The River Valleys: The Odyssey Of The Delaware India", Paul Otto

Faculty Publications - Department of History and Politics

No abstract provided.

China's Third World Policy From The Maoist Era To The Present, Joseph Tse-Hei Lee

Global Asia Journal

This study examines the evolution of China's Third World policy from the Maoist era to the present. The term "third World" refers to all developing and underdeveloped countries in Central Asia, South Asia, Southeast Asia, Africa and Latin America. Since 1949, the People's Republic of China was mainly responding to the international pressures from the United States and the Soviet Union rather than dealing with the Third World countries per se. But after the launching of the War on Terror in 2001, the American military expansion into Iraq and Afghanistan completely changed China's diplomatic priorities. Beijing has begun to pursue …

Will Oslo Be The Next Ottawa? The Cluster-Munitions Debate, Jeff Abramson

The Journal of Conventional Weapons Destruction

More than a decade has passed since the monumental Ottawa Mine Ban Convention was opened for signature in December 1997. Now, with the adoption of the text of the Convention on Cluster Munitions in May 2008, the global community is closer than ever to an international agreement prohibiting the use of cluster munitions. A review of the key issues underpinning the debate on cluster munitions follows.

Discovery, 2008, University Of Dayton

Discovery

Discovery was an annual publication of the University of Dayton Office University Communication for the University of Dayton Research Institute. This collection is not complete.