Tech Briefs

Hands-on Cybersecurity Studies: Multi-Perspective Analysis of the WannaCry Ransomware

This research involves a multi-perspective analysis of the WannaCry ransomware in the form of a cybersecurity exercise.
Posted in: Briefs, Aerospace, Defense, Software

Thermal Conductivities of Some Polymers and Composites

Thermoset polymers are good electrical insulators that are used in applications ranging from electronics to composite armor. They are rather poor thermal conductors, however.
Posted in: Briefs, Aerospace, Defense, Electronic Components, Electronics, Electronics & Computers, Thermal Management, Composites, Materials, Instrumentation, Measuring Instruments, Test & Measurement

Nominal High-Altitude Electromagnetic Pulse (HEMP) Waveforms

Predictions of these signals were difficult to make due to the complexity of the physics unleashed by the detonation.
Posted in: Briefs, Aerospace, Defense, Photonics, RF & Microwave Electronics, Instrumentation, Measuring Instruments, Test & Measurement

Real-Time Heuristics and Metaheuristics for Static and Dynamic Weapon Target Assignments

Projectile weapons have been a consistent threat of hostilities throughout history. Military advantage has always been aided by the capacity to inflict damage from a distance. In the 20th century, missile technology advanced to the point that an adversary had the potential to attack a protected asset from great distances. To neutralize this stand-off threat, the concept of air defense evolved. However, as the ability to reduce a missile threat increased, so, too, did the quantity and quality of missiles available, and research into the effective allocation of air defense resources emerged.

Posted in: Briefs, Aerospace, Defense, Simulation Software, Automotive, Transportation

Hybrid Ultra-Low VOC and Non-HAP Rain Erosion Coatings

Numerous military aircraft and shipboard surfaces, such as radomes, antennas, gun shields, wing leading edges, and helicopter blade leading edges, are coated with a specialized erosion-resistant protective coating possessing strict performance requirements. These protective coatings must provide excellent rain erosion resistance, superior mechanical properties, good adhesion to the substrate and meet a host of other metrics outlined in MIL-PRF-32239 and SAE AMS-C- 83231A.

Posted in: Briefs, Aerospace, Defense, Coatings & Adhesives, Mechanical Components

Electrical Characterization of Crystalline UO2, THO2 and U0.71TH0.29O2

Tracking and identifying radiation sources in the age of nuclear proliferation and well- resourced non-state actors is a national priority. Current neutron detection methods favor large detector volumes and long data collection times. Additionally, portable neutron detection methods have persistent problems with low signal-to-noise (small pulse height) and require large applied voltages.

Posted in: Briefs, Aerospace, Defense, Materials, Mechanical Components, MEMs, Semiconductors & ICs, Data Acquisition, Detectors, Sensors

ONR Short Pulse Research, Evaluation and non-SWaP Demonstration for C-sUAV Study

The OSPRES (ONR Short Pulse Research, Evaluation and non-SWaP) program performed fundamental work in the areas of Silicon (Si) and Gallium Nitride (GaN) based photoconductive switch development, measurement of HPM waveform dependent effects on small unmanned aerial vehicle (sUAV), adaptive design of experiments, noise injection, RF coupling to sUAV's, minimally dispersive wave theory, and positive feedback non-linear transmission line (NLTL) development.

Posted in: Briefs, Aerospace, Defense, Electronic Components, Power Management, Power, Antennas, RF & Microwave Electronics