The DSIAC Journal is a publication of the Defense Systems Information Analysis Center (DSIAC). DSIAC is a DoD Information Analysis Center (IAC) sponsored by the Defense Technical Information Center (DTIC) with policy oversight provided by the Office of the Under Secretary of Defense (OUSD) for Research and Engineering (R&E). DSIAC is operated by the SURVICE…
This article presents a standardized technique to evaluate the navigation performance (position, velocity, and principal axes) of an airborne system and develop an efficient methodology to define the number of target data points to process during the planning phases of testing.
The composition of different types of terrains and presence of a variety of objects and artifacts in a real environment are always evolving.
The 2022 National Defense Strategy directs the U.S. Department of Defense (DoD) to urgently act to strengthen the U.S. military against its pacing challenge—the People’s Republic of China (PRC).
Marine and aerospace vessels have stringent flammability requirements, defined through the American Society for Testing and Materials (ASTM) E1354 Cone Calorimetry standard [1], to protect those onboard Navy vessels in case of fire emergencies.
Amidst the crashing surf of a remote coastline, two U.S. Navy sailors clad in black wetsuits and protective helmets carry the MK18 Mod 1 Swordfish unmanned underwater vehicle (UUV) toward the open ocean
Sensor(s) (singular or an array of microphones) detect acoustic signals (sound waves), parse them in real-time, and send the results to the server. The information the server receives includes the sensor’s identification, its geographic coordinates, and a timestamp of when the sensor detected the sound waves. The server can instantaneously process the messages received from…
Figure 1. An Atomic-Scale Hexagonal Lattice Made of Carbon Atoms (Source: AlexanderAlUS via Wikimedia Commons). The tight lattice of graphene, combined with its very short carbon bonds (0.142 nm), provides its strength. It is the strongest material ever discovered, boasting an ultimate tensile strength of 130 GPa. Graphene is exceptionally light for its strength, weighing…
There are natural and synthetic polymer hydrogels. Natural hydrogel polymers include polysaccharides, polynucleotides, and polypeptides. These polymers are particularly beneficial because they are abundant in nature, biodegradable, and inexpensive. Some examples of natural hydrogels include collagen, silk fibroin, and hyaluronic acid. Synthetic polymer hydrogels differ from natural polymers because they have chemical and physical properties…
The U.S. Department of Defense (DoD) has made some progress certifying additive manufacturing (AM) parts for airworthiness, but certification has been limited to the lab, with significant engineering and inspections required for each part. Over the last two decades, each branch of the DoD developed their own processes for AM certification, thus fragmenting certification and slowing the widespread acceptance of AM. The Federal Aviation Administration…
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The DSIAC Journal is a publication of the Defense Systems Information Analysis Center (DSIAC). DSIAC is a DoD Information Analysis Center (IAC) sponsored by the Defense Technical Information Center (DTIC) with policy oversight provided by the Office of the Under Secretary of Defense (OUSD) for Research and Engineering (R&E). DSIAC is operated by the SURVICE…
This article presents a standardized technique to evaluate the navigation performance (position, velocity, and principal axes) of an airborne system and develop an efficient methodology to define the number of target data points to process during the planning phases of testing.
The composition of different types of terrains and presence of a variety of objects and artifacts in a real environment are always evolving.
The 2022 National Defense Strategy directs the U.S. Department of Defense (DoD) to urgently act to strengthen the U.S. military against its pacing challenge—the People’s Republic of China (PRC).
Marine and aerospace vessels have stringent flammability requirements, defined through the American Society for Testing and Materials (ASTM) E1354 Cone Calorimetry standard [1], to protect those onboard Navy vessels in case of fire emergencies.
Amidst the crashing surf of a remote coastline, two U.S. Navy sailors clad in black wetsuits and protective helmets carry the MK18 Mod 1 Swordfish unmanned underwater vehicle (UUV) toward the open ocean
Sensor(s) (singular or an array of microphones) detect acoustic signals (sound waves), parse them in real-time, and send the results to the server. The information the server receives includes the sensor’s identification, its geographic coordinates, and a timestamp of when the sensor detected the sound waves. The server can instantaneously process the messages received from…
Figure 1. An Atomic-Scale Hexagonal Lattice Made of Carbon Atoms (Source: AlexanderAlUS via Wikimedia Commons). The tight lattice of graphene, combined with its very short carbon bonds (0.142 nm), provides its strength. It is the strongest material ever discovered, boasting an ultimate tensile strength of 130 GPa. Graphene is exceptionally light for its strength, weighing…
There are natural and synthetic polymer hydrogels. Natural hydrogel polymers include polysaccharides, polynucleotides, and polypeptides. These polymers are particularly beneficial because they are abundant in nature, biodegradable, and inexpensive. Some examples of natural hydrogels include collagen, silk fibroin, and hyaluronic acid. Synthetic polymer hydrogels differ from natural polymers because they have chemical and physical properties…
The 2024 Aircraft Survivability Symposium is a SECRET//NOFORN event; attendees must hold at least a Secret clearance and be U.S. citizens. Please review the security clearance and gate access information page when available and submit…
The U.S. Department of Defense Steels Summit brings together the defense, government, industry, and academic communities engaged in the production, use, and research of steel alloys relevant to military applications. The summit is a 2-day…
Senior Project Leader, The Aerospace Corporation
As The Aerospace Corporation’s senior project leader, Greg Meholic explores advanced space launch and propulsion technology for national security and commercial applications. His current projects include coordinating technical support for various interests and activities in space nuclear propulsion and power, cryogenic fluid management, commercial launch licensing, and rocket engine development. These efforts directly support the mission assurance provided to defense and commercial customers as they navigate the ever-changing space industry.
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