Defense Systems Digest

21 JUNE 2022

Featured Technical Inquiry

Research Efforts in Infrasound

  The Defense Systems Information Analysis Center (DSIAC) was asked to identify key contributors to DoD research efforts in infrasound. Infrasound is classified as sound waves with frequencies lower than 20 hertz (Hz) cycles per second.  A variety of things produces infrasound, including natural disasters and animals. Sources of infrasound are in the range from very low-frequency atmospheric fluctuations up to the lower audio frequencies. […]

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Mark Johnson

Voice From the Community

Mark S. Johnson

Ph.D. DABT, Toxicology Director, U.S. Army Public Health Center

As the Director of Toxicology, Dr. Johnson is responsible for the operational and technical arm of the Army Surgeon General and the Assistant Secretary of the Army for toxicological matters. He has worked extensively in evaluating the toxicity of military unique compounds and developing and evaluating a phased approach to gathering toxicity data for new compounds. He is a fellow and a member of the Board of Directors of the International Board of Environmental Risk Assessment, SETAC North America, and the Academy of Toxicological Sciences. Dr. Johnson has authored over 100 peer-reviewed publications, book chapters, and technical reports and serves on several NATO and EPA panels.

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Featured News

Leadership Key to Moving Defense Department Toward Data-Driven Future 

In April, the Defense Department hired a former computer science professor and head of machine learning for Lyft to elevate digital and artificial intelligence strategy development and policy formulation. As chief digital and artificial intelligence officer, Craig Martell is responsible for accelerating the adoption of data, analytics, digital solutions, and AI functions. But shifting the largest agency in the federal government toward a data-driven future […]

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Recent News

Harpoon Weapon System, More Howitzers Headed to Ukraine

The Defense Department announced an additional $1 billion in security assistance to Ukraine, which will include Harpoon coastal defense systems, more 155-mm howitzers, and more ammunition for the High-Mobility Artillery Rocket System, or HIMARS. The…

AFRL Leads Effort to Develop, Test Hybrid Halvorsen Aircraft Loader Prototype at Two AMC Aerial Ports

WRIGHT-PATTERSON AIR FORCE BASE, Ohio (AFRL) — The U.S. Air Force Research Laboratory (AFRL) is leading a Department of the Air Force effort to develop and test a diesel-electric mobility aircraft cargo loader, the hybrid…

MINC Program Aims to Enable Critical Data Flow Even in Contested Environments

DARPA has selected three teams for the Mission-Integrated Network Control (MINC) program. MINC’s objective is to ensure that critical data finds a path to the right user at the right time in highly contested, highly…

New AFRL Virtual Range to Bring Directed Energy Capabilities to Warfighters

KIRTLAND AIR FORCE BASE, N.M. (AFRL) – The U.S. Air Force Research Laboratory (AFRL) Directed Energy Directorate has awarded a contract, the largest award of its kind, to BlueHalo to build a directed energy modeling and…

DEVCOM Soldier Center Designs Protective Jumpsuit for Elite Firefighters

NATICK, Mass. — Some heroes wear capes, and some wear jumpsuits designed by the U.S. Army Combat Capabilities Development Command Soldier Center, or DEVCOM SC. America’s smokejumpers literally dive into danger. They are an elite…

Closed-Loop Additive Manufacturing Fueled by Upcycled Plastic

Researchers at the Department of Energy’s Oak Ridge National Laboratory have developed an upcycling approach that adds value to discarded plastics for reuse in additive manufacturing, or 3D printing. The readily adoptable, scalable method introduces…

Upcoming Events

JAS FY23 Proposal Review Meeting

Registration is now closed, however you can still register by contacting Darnell Marbury at   On June 22-23, 2022, the Joint Aircraft Survivability (JAS) FY23 Proposal Review Meeting (PRM) will be held. It will…

Electric Aircraft Symposium

This year’s 16th Annual EAS returns to an in-person format at Oshkosh, Wisconsin, on July 23-24, 2022. EAS 2022 presenters will discuss the latest in electric aircraft, propulsion systems, energy sources, certification, regional and urban…

2022 MSS Tri-Service Radar Symposium (TSRS)

Celebrating its 68th anniversary in 2022, the Tri-Service Radar Symposium (TSRS) is the oldest, continuous meeting of defense radar engineers, scientists, and technologists. This event provides a tri-service forum for presenting a wide range of…

Eglin AFB Tech Expo

The Eglin Air Force Base (AFB) Tech Expo connects government and industry to collaborate on mission requirements and innovative solutions. This event, which is open and free to all Eglin AFB personnel, provides an opportunity…

International Armored Vehicles (IAV) USA

IAV USA provides a forum for decision makers and senior leaders from both the customer community and industry to contribute and share knowledge on all aspects of capability development, force generation, and support for armored…

National Space & Missile Materials Symposium

The National Space & Missile Materials Symposium (NSMMS) is jointly hosted with the Commercial and Government Responsive Access to Space Technology Exchange (CRASTE). In their 10th year, both events bring together technologists, users, and decision…

Aviation Forum

The AIAA AVIATION Forum covers the entire integrated spectrum of aviation business, research, development, and technology. Over 1,000 technical presentations on the latest innovations spanning 20+ aviation and aeronautics research topics will be available. Each…