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Alan W. Johnson
Air Force Institute of Technology
51Publications
7H-index
414Citations
Publications 51
Newest
#1Greg H. Gehret (AFIT: Air Force Institute of Technology)
#2Jeffery D. Weir (AFIT: Air Force Institute of Technology)H-Index: 9
Last.David R. Jacques (AFIT: Air Force Institute of Technology)H-Index: 10
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#1Jacob D. Maywald (AFIT: Air Force Institute of Technology)
#2Adam D. Reiman (AFIT: Air Force Institute of Technology)H-Index: 1
Last.Alan W. Johnson (AFIT: Air Force Institute of Technology)H-Index: 7
view all 4 authors...
We consider the use of the new C-130J-30 aircraft for long distance (strategic) cargo movement. Currently, only large aircraft, the C-5 and the C-17, are identified as strategic airlift assets by the United States Air Force. Our mathematical model identifies all logical airframe combinations to perform a cargo movement given a set of constraints. Using previously developed routing algorithms and fuel metrics, we evaluated the combinations and calculated the potential savings had the most fuel ef...
#1Daniel A. Griffith (AFIT: Air Force Institute of Technology)H-Index: 1
#2Bradley C. Boehmke (AFIT: Air Force Institute of Technology)H-Index: 4
Last.Alan W. Johnson (AFIT: Air Force Institute of Technology)H-Index: 7
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Analytical techniques continue to advance in efficacy, as well as complexity. However, it is sometimes unrealistic to employ complex analyses during time-constrained humanitarian disaster operations. We propose that simple, embedded analytics tools can provide an effective and practical means toward managing humanitarian operations. In this paper, we demonstrate a real-world application of our technique in a patient evacuation context. This paper contributes to literature and practice by showing...
#1Joshua Rodewald (AFIT: Air Force Institute of Technology)H-Index: 2
#2John M. ColombiH-Index: 10
Last.Alan W. JohnsonH-Index: 7
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Supply networks existing today in many industries can behave as complex adaptive systems making them more difficult to analyze and assess. Being able to fully understand both the complex static and dynamic structures of a complex adaptive supply network (CASN) are key to being able to make more informed management decisions and prioritize resources and production throughout the network. Previous efforts to model and analyze CASN have been impeded by the complex, dynamic nature of the systems. Ho...
#1Bradley C. Boehmke (AFIT: Air Force Institute of Technology)H-Index: 4
#2Alan W. Johnson (AFIT: Air Force Institute of Technology)H-Index: 7
Last.Mark A. GallagherH-Index: 6
view all 5 authors...
Indirect activities often represent an underemphasized, yet significant, contributing source of costs for organizations. In order to manage indirect costs, organizations must understand how these costs behave relative to changes in operational resources and activities. This is of particular interest to the Air Force and its sister services, because recent and projected reductions in defense spending are forcing reductions in their operational variables, and insufficient research exists to help t...
#1Christos E. Chalyvidis (Hellenic Air Force Academy)H-Index: 2
#2Jeffrey A. Ogden (AFIT: Air Force Institute of Technology)H-Index: 14
Last.Thomas C. Ford (AFIT: Air Force Institute of Technology)H-Index: 4
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ABSTRACTThe ability of systems or organisations to provide services to, and accept services from, other systems or organisations is the fundamental tenet of interoperability. This paper introduces supply chain interoperability and proposes it as a metric to facilitate supply chain management performance analysis. Interoperability can be considered a similarity metric with regard to a set of characteristics. Our methodology adapts and expands an interoperability measurement tool initially develop...
#1Bradley C. Boehmke (AFIT: Air Force Institute of Technology)H-Index: 4
#2Alan W. Johnson (AFIT: Air Force Institute of Technology)H-Index: 7
Last.Mark A. GallagherH-Index: 6
view all 5 authors...
Current constraints in the fiscal environment are forcing the Air Force, and its sister services, to assess force reduction considerations. With significant force reduction comes the need to model and assess the potential impact that these changes may have on support resources. Previous research has remained heavily focused on a ratio approach for linking the tooth and tail ends of the Air Force cost spectrum and, although recent research has augmented this literature stream by providing more st...
#1Joshua Rodewald (AFIT: Air Force Institute of Technology)H-Index: 2
#2John M. Colombi (AFIT: Air Force Institute of Technology)H-Index: 10
Last.Alan W. Johnson (AFIT: Air Force Institute of Technology)H-Index: 7
view all 4 authors...
Abstract Transfer entropy has long been used to discover network structures and relationships based on the behavior of nodes in the system, especially for complex adaptive systems. Using the fact that organizations often behave as complex adaptive systems, transfer entropy can be applied to discover the relationships and structure within an organizational network. The organizational structures are built using a model developed by Dodd, Watts, et al, and a simulation method for complex adaptive s...
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