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SBC: FIBERTEK, INC. Topic: N21BT019
We propose a serially concatenated switchable asymmetric Mach Zehnder switching network on a silicon nitride photonic integrated circuit platform to provide flexible and switchable demodulation of signals from less than 1 GHz to greater than 45 GHz. The silicon nitride platform provides a low size weight and power solution while reducing the stabilization requirements and providing long path lengt ...STTR Phase I 2021 Department of DefenseNavy
Integrated Computational Materials Engineering (ICME) Modeling Tool for Optimum Gas Flow in Metal Additive Manufacturing ProcessesSBC: TECHNICAL DATA ANALYSIS, INC. Topic: N21BT022
Users of additive manufacturing machines expect the highest quality when it comes to the mechanical properties of parts, the usability of the machines and associated processes, and overall machine design. The main contributor to the quality of the part is the involvement of process-related by-products originating from the melting process. To handle these by-products in additive manufacturing - in ...STTR Phase I 2021 Department of DefenseNavy
SBC: FREEDOM PHOTONICS LLC Topic: N21AT004
As complexity and performance requirements increases for RF sensors and systems for electronic warfare applications, the need for innovative and low-power compressive sensing (CS) technologies will become urgent in power constrained mobile platforms. There are several DOD and government application areas where this holds true and the high-performance CS technology to be developed in this program c ...STTR Phase I 2021 Department of DefenseNavy
SBC: TDA RESEARCH, INC. Topic: N21AT001
Hemp fibers have been used in textile applications for thousands of years, but have been limited to textiles for home furnishing, rope, sacks, and other non-clothing textile applications. However, new treatment methods for hemp fibers to improve their hand, as well hemp’s general softening properties with time and wear, make these fibers attractive for use in performance clothing due to hemp’s ...STTR Phase I 2021 Department of DefenseNavy
SBC: NANOSONIC INC. Topic: N21AT002
NanoSonic is a small, advanced materials company that specializes in the development and manufacturing of state-of-the-art structural composites that are not commercially available. Here, NanoSonic shall produce aircraft composites using additive manufacturing (AM) techniques with a commercial scalable method for revitalizing carbon fiber reclaimed from end-of-life and aircraft composite scraps. ...STTR Phase I 2021 Department of DefenseNavy
SBC: SCIENTIFIC APPLICATIONS & RESEARCH ASSOCIATES, INC. Topic: N21AT003
Detecting and Avoiding (DAA) manned aircraft from small Unmanned Aircraft Systems (sUAS) remains the unsolved problem for safe integration of sUAS into civil airspaces where Navy UAS must pay Due Regard to the laws of civil aviation. The difficulties are manifold. The solution requires both ultra-low SWaP sensors that track aircraft over long ranges, providing 360o field-of-regard (FOR), and often ...STTR Phase I 2021 Department of DefenseNavy
Ground Fault Detection and Localization for Low Voltage Alternating Current (LVAC) Shipboard Distribution SystemsSBC: HEPBURN AND SONS LLC Topic: N21AT005
Hepburn and Sons LLC proposes to design a ground fault detection system for 440VAC three phase radial Navy shipboard power distribution, while teaming with their partner Florida State University, Center for Advanced Power Systems (FSU CAPS). Existing Navy ground fault detection systems can detect and locate single line to ground faults on a given phase, but a second ground fault on a separate phas ...STTR Phase I 2021 Department of DefenseNavy
SBC: Micro Cooling Concepts, Inc Topic: N21AT012
High power semiconductor devices suffer from difficulty in dissipating heat and thermal stresses. Silicon carbide-based power modules, in particular, have increasingly challenging heat loads despite their high efficiencies. In general terms, the module packaging methods used to improve cooling (moving metal heatsinks closer to the die) also increase thermal stresses, and the methods used to reduce ...STTR Phase I 2021 Department of DefenseNavy
SBC: HEPBURN AND SONS LLC Topic: N21BT020
Hepburn and Sons LLC teamed with North Carolina State University (NCSU) proposes an analysis of alternatives (AoA) to design and optimize a megawatt class, solid state transformer rectifier (SSTR) supporting maintainability of U.S. Navy shipboard power infrastructure. The design will convert 13.8kV AC to +-850V DC with modular, line-replaceable units (LRUs) that are compact and lightweight such th ...STTR Phase I 2021 Department of DefenseNavy
SBC: HEAT, LIGHT, AND SOUND RESEARCH, INC. Topic: N21AT010
Both acoustic and electromagnetic waves exert forces of radiation on targets in their path of propagation. The radiation force (pressure) results from the change in wave momentum due to scattering by the target, averaged over one period of oscillation. Modulated radiation pressure (MRP) utilizes the acoustic radiation force by using a double-sided suppressed carrier modulated (DSB-SCM) incident ...STTR Phase I 2021 Department of DefenseNavy