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We blend research with subject matter expertise to provide an outlet for publicly releasable articles on new and emerging science, engineering, and technology within the defense community.

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Corrosion costs the U.S. Department of Defense (DoD) billions of dollars annually and heavily impacts the ...

Latest Articles

Understanding the Bow Topside Flow Field of the USS Zumwalt for Hypersonic Missile Launching: A Potential Missing Link

What happens when a hypersonic missile is launched from a Navy destroyer? Aside from the forthcoming damage effects and political fallout, there are a million complex physical interactions that take place right at the moment and place of the launch.

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A Brief History of the Advanced Inorganic-Organic Hybrid Polymers of NRL’s Chemistry Division

In common language, the term “polymer” elicits references to many ordinary, practical items, including the phrase “paper or plastic” in checkout counters.

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Atmospheric Corrosion Severity and the Role of the Environment: Determining a Direct Correlation

Corrosion costs the U.S. Department of Defense (DoD) billions of dollars annually and heavily impacts the availability of DoD assets to carry out their missions [1].

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Attributing Mission Performance to Submarine Subsystems

Submarine design is a multifaceted process requiring extensive effort spanning across various disciplines and organizations. Part of this effort is deciding which missions a submarine is expected to conduct and assessing its efficacy, or mission effectiveness, in those missions via constructive simulation.

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Note From the Editor-in-Chief

Celebrating Nearly 250 Years of U.S. Naval Innovation On March 9, 1862, as the first sunlight of the day sparkled over the Chesapeake Bay, history was being made with the world’s first clash of steam-powered, ironclad warships.1 The U.S. Navy’s newest and most advanced ship, the USS Monitor, engaged in an hours-long battle with the CSS Virginia (formerly the USS […]

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Emerging Applications of Machine Learning and Predictive Analytics in Naval Energy Autonomy

This article explores several emerging applications of artificial intelligence (AI) and machine learning (ML) for U.S. Department of the Navy (DON) energy autonomy and digital transformation use.

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Investigating Surface Structures for Infrared Signature Management

SUMMARY This article investigates the physics principles that govern the effects of type, smoothness, and surface structure of materials on a material’s emissivity. A simple classification of materials is metals and nonmetals. Nonmetals tend to have higher emissivity above 0.8, while metals generally have low emissivity below 0.2. Other factors that affect the emissivity of […]

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Daunting Challenge of Drone Defense

INTRODUCTION The proliferation of an unmanned aircraft/aerial system (UAS) spreads beyond military and remote control (R/C) hobbyist markets in the last decade, spearheaded by the Chinese company DJI beginning with the release of the DJI Phantom 1 in early 2013 [1]. As the capability of these aircraft has increased to meet the needs of new […]

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Systems Engineering of Autonomy: Frameworks for MUM-T Architecture

SUMMARY Do we design autonomous systems or systems with autonomy? This question will be explored and developed by first understanding the perspective of autonomy, deconflicting the buzzwords from the reality, and applying a robust and simple framework. This will encapsulate and begin to decompose autonomy, autonomous behaviors, artificial intelligence (AI), and collaborative Manned-Unmanned Teaming (MUM-T) […]

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Passive Coherent Location Radar – The Silent Threat

INTRODUCTION The future battlefield will be highly complex and congested. The electromagnetic (EM) environment will consist of a complicated mix of signals, both threats and friendlies. Figure 1 is a simplified illustration of some of the potential players. Passive coherent location (PCL) radars represent an emerging threat that differs from typical radar threats in that […]

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