Editor's Note Vol. 13 No. 1,
2023
University of Nebraska at Omaha
Table Of Contents Vol. 13 No. 1,
2023
University of Nebraska at Omaha
Table Of Contents Vol. 13 No. 1, Space And Defense
Space and Defense
No abstract provided.
Front Matter Vol. 13 No. 1,
2023
University of Nebraska at Omaha
Augmenting External Surface Pressures’ Predictions On Isolated Low-Rise Buildings Using Cfd Simulations,
2023
Louisiana State University
Augmenting External Surface Pressures’ Predictions On Isolated Low-Rise Buildings Using Cfd Simulations, Md Faiaz Khaled, Aly Mousaad Aly
Faculty Publications
The aim of this paper is to enhance the accuracy of predicting time-averaged external surface pressures on low-rise buildings by utilizing Computational Fluid Dynamics (CFD) simulations. To achieve this, benchmark studies of the Silsoe cube and the Texas Tech University (TTU) experimental building are employed for comparison with simulation results. The paper is structured into three main sections. In the initial part, an appropriate domain size is selected based on the precision of mean pressure coefficients on the windward face of the cube, utilizing Reynolds Averaged Navier-Stokes (RANS) turbulence models. Subsequently, recommendations regarding the optimal computational domain size for an …
Orbital Debris Mitigation: Exploring Cubesat Drag Sail Technology,
2023
Embry-Riddle Aeronautical University
Orbital Debris Mitigation: Exploring Cubesat Drag Sail Technology, Robinson Raphael
Student Works
In an era marked by remarkable advancements in space exploration and research, the advent of satellite technology has contributed accordingly to the lives of people here on Earth. Through applications that tie into broadband connectivity, weather forecasting, disaster management, etc., the occupancy in orbital domains like Low-Earth Orbit (LEO) only continues to grow. However, the presence of orbital debris emerges as a significant concern, posing threats to both operational satellites and future space missions. Resulting as a consequence due to decades of activities since the launch of Sputnik 1 in 1957, as more countries ventured into space so did the …
Notes For Contributors,
2023
University of Nebraska at Omaha
Book Review: Spies, Lies, And Algorithms: The History And Future Of American Intelligence,
2023
University of Nebraska at Omaha
Book Review: Spies, Lies, And Algorithms: The History And Future Of American Intelligence, Claire Benedix
Space and Defense
The security environment is entering a new threat landscape; one that must be fought in both the physical and virtual world. The seemingly instantaneous progress of digitization and the cyberspace domain threatens to destabilize traditional warfare strategies and intelligence norms. Amy Zegart, an American academic and leading national security expert, outlines the history and future of American intelligence with a specific emphasis on emerging cyber threats in the digital age. In Spies, Lies, and Algorithms, Zegart explains the roles of technological breakthroughs in a world of big data by chronicling the history of intelligence education and organizational reform, the evolution …
Communicating Deterrence Thresholds In Cyberspace Through Global Normas,
2023
Purdue University
Communicating Deterrence Thresholds In Cyberspace Through Global Normas, Leila Yanni
Space and Defense
Student Contribution.
Cyberspace refers to a purely virtual arena that has become increasingly relevant in the past few years, as countries develop more cyber weapons and carry out more cyber attacks. The cyber domain has a large scope because of its virtual nature, and it has a high potential threat level as the full impact of cyber capabilities are not even understood yet. As the possibilities for destructive cyber weapons are virtually endless, the threats are also virtually endless. Because of the growing relevance of cyberspace and the high danger level, deterrence thresholds are a pressing issue in this domain. …
Us Blindness To Russian, Chinese Cultural Motives Risks Nuclear Escalation And Ill-Fit Response,
2023
Utah State University
Us Blindness To Russian, Chinese Cultural Motives Risks Nuclear Escalation And Ill-Fit Response, Ryan C. Bushman
Space and Defense
Student Contribution.
This paper was authored prior to the 2022 Russian invasion of Ukraine and the publication of the 2022 Nuclear Posture Review.
The United States has taken numerous miscalculated steps with respect to foreign and nuclear policy based on an incomplete understanding of the motives of both China and Russia. This is, in part, due to a failure to acknowledge these nations' strategic culture - an enduring system of values that influence a nation's use of military force. As the US is about to put forth its 2022 Nuclear Posture Review (NPR), it is critical that future responses to …
Keynote Address: Dr. Kori Schake,
2023
American Enterprise Institute
Keynote Address: Dr. Kori Schake, Kori Schake
Space and Defense
2022 United Sates Strategic Command Academic Alliance Conference and Workshop, Mark 30-April 1, 2022, Conducted via Zoom
Addressing The American Approach To Emerging Technologies: Utilizing The Ai Arms Race To Highlight The Need To Develop Public-Private Partnerships In C4isr And 5g,
2023
University of California, Berkeley
Addressing The American Approach To Emerging Technologies: Utilizing The Ai Arms Race To Highlight The Need To Develop Public-Private Partnerships In C4isr And 5g, Hugh Harsono, Nicholas Ondovcsik
Space and Defense
he world of emerging technologies has changed countries' access and placement to these digital enablement tools of the future, with blockchain, decentralization, and a myriad of other compounding technologies accelerating the pace of development and growth combining the physical and the digital world. Historically, America's Silicon Valley has led the world's development of new technologies, particularly during the latter part of the digital revolution. In contrast, China focused on enhancing its manufacturing capabilities, becoming a world leader by capitalizing on the ever-connected world and leveraging its economic prowess. These roles became reversed in the early-2000s,1 when China first surpassed the …
Technology: The Air And Space Force's Barrier To Innovation,
2023
Air and Space Force
Technology: The Air And Space Force's Barrier To Innovation, William F. Cosgrove
Space and Defense
The Department of Defense is a rank-and-file institution that values orders adherence and a zero-error mentality, which has led commanders to be risk averse. This is exemplified in the cybersecurity realm, with controls attempting to protect all information, including uncontrolled unclassified information. Efforts that attempt to employ a new or different type of information technology are made very difficult by a number of existing policies. Additionally, customer surveys, service initiatives, and open user complaints have revealed dissatisfaction with Department of the Air Force (DAF) IT services. The millennial and post-millennial generations are the most technologically adept, yet the majority of …
A Great Nuclear Rejuvenation: What China Can Do With An Expanded Nuclear Arsenal,
2023
University of Nebraska at Omaha
A Great Nuclear Rejuvenation: What China Can Do With An Expanded Nuclear Arsenal, Grant Van Robays, Chloe Reynolds, Will Jackson, Tom Hammerle
Space and Defense
China's hypersonic glide vehicle test in October 2021 prompted widespread concern in the general public and within the defense intelligence community. General Mark A. Milley, Chairman of the Joint Chiefs of Staff, said the test was "very close" to a Sputnik moment.1 More than mere power projection by the People's Republic of China (PRC) and Chinese Communist Party ( CCP), the hypersonic test is an exemplification of rapid advancements in Chinese strategic nuclear forces writ large. Improved nuclear weapons capabilities will offer Beijing greater leverage in regional and international disputes with an increased capacity to coerce and compel adversaries into …
Editor's Note,
2023
University of Nebraska at Omaha
Table Of Contents,
2023
University of Nebraska at Omaha
Table Of Contents, Space And Defense
Space and Defense
Table of contents for Volume 14 issue 1 of Space and Defense
Front Matter,
2023
University of Nebraska at Omaha
How Education Sats Started & A Youth Amsat-Na Program Proposal,
2023
Morehead State University
How Education Sats Started & A Youth Amsat-Na Program Proposal, Robert J. Twiggs, Nick Pugh
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "How Education Sats Started & A Youth Amsat-NA Program Proposal" from October 21, 2023.
Uas Risk Analysis In And Around Airports,
2023
University of North Dakota
Uas Risk Analysis In And Around Airports, Prasad Pothana, Jack Thornby, Michael Ullrich, Sreejith Vidhyadharan, Paul Snyder
Petroleum Engineering Posters and Presentations
No abstract provided.
State Space Modeling And Estimation Of Flexible Structure Using The Theory Of Functional Connections,
2023
Embry-Riddle Aeronautical University
State Space Modeling And Estimation Of Flexible Structure Using The Theory Of Functional Connections, Carlo Lombardi, Riccardo Bevilacqua
Student Works
In this work, we present a novel method to model the dynamics of a continuous structure based on measurements taken at discrete points. The method is conceived to provide new instruments to address the problem of flexible dynamics modeling in a spacecraft, where an effective mathematical representation of the non-rigid behavior of the is of critical importance in the design of an effective and reliable attitude estimation and control system. Both the measurements and the model that describes the structure can be affected by uncertainty. The purpose of the developed method is to estimate the position and the velocity of …
Stability Of Deep Neural Networks For Feedback-Optimal Pinpoint Landings,
2023
University of Florida
Stability Of Deep Neural Networks For Feedback-Optimal Pinpoint Landings, Omkar S. Mulekar, Hancheol Cho, Riccardo Bevilacqua
Student Works
The ability to certify systems driven by neural networks is crucial for future rollouts of machine learning technologies in aerospace applications. In this study, the neural networks are used to represent a fuel-optimal feedback controller for two different 3-degree-of-freedom pinpoint landing problems. It is shown that the standard sum-ofsquares Lyapunov candidate is too restrictive to assess the stability of systems with fuel-optimal control profiles. Instead, a parametric Lyapunov candidate (i.e. a neural network) can be trained to sufficiently evaluate the closed-loop stability of fuel-optimal control profiles. Then, a stability-constrained imitation learning method is applied, which simultaneously trains a neural network …
