Award Data

ABSTRACT: Combustion instability (aka thermoacoustic instability) is a significant issue in propulsion systems including augmentors. Oscillations can increase heat transfer to walls 10 fold and cause vibration damage to the propulsion system and the surrounding system. This damage can occur very rapidly. Combustion instability (CI) is challenging to design for due to the complex interactions betw ...

GTL proposes a dramatic improvement in launch and space vehicle technology for NASA space and exploration missions. The modified BHL (mBHL) technology provides significant reductions in weight while exceeding the helium permeability requirements needed to meet NASA long term cryogenic propellant storage requirements. The proposed effort builds upon a substantial DARPA investment in BHL cryotank ...

GTL has been developing a suite of transformational technologies that have the capability to disrupt the traditional launch vehicle paradigm. BHL composite cryotank technology provides a four times improvement over large aluminum iso-grid tanks, offering a 6 percentage point improvement in small stage PMF. Superior Stability Engine is an innovative liquid rocket engine configured to maximize comb ...

Advances in radiation shielding technology remain an important challenge for NASA in order to protect their astronauts, particularly as NASA grows closer to manned missions to the moon and Mars. Polyethylene is a readily available and structurally sound thermoplastic that has recently gained a fair amount of notoriety as an effective radiation shield. GTL is proposing to incorporate polyethylene ...

The proposed technology builds off GTL's advanced solid ramjet fuel. The method uses additive manufacturing methods to produce an innovative new type of fuel grain that regresses quickly and has a high Isp and combustion efficiency. With this technology, the performance of a liquid rocket engine can be had with a hybrid rocket system. This technology allows for a simple, low cost, high performanc ...

A comprehensive model-based approach will be enabled for space systems design via the work started on Phase I of this project. The OpenMETA toolkit is a cyber-physical modeling tool for the design and virtual integration of complex systems, developed under the DARPA AVM Program. OpenMETA will be leveraged and extended to support NASA/JPL goals for multi-physics, multi-domain modeling, analysis, ...

Avian coccidiosis is the major parasitic disease of poultry that can result in the deaths of millions of birds in a short time. Prophylactic medication and live parasite vaccines are employed as therapeutics. The development of parasite strains resistant to drug treatments, and immune-evasive mutations introduced in response to live parasite treatments will soon limit the effectiveness. The USDA A ...

Achievement levels of U.S. K-12 students continue to decline compared with those of students in many foreign countries - especially in math and science. Based on current U.S. standards alone, two-thirds of our 8th grade students lack proficiency in core disciplines related to science, math, and reading. This same data for many of our resource-limited rural school districts is even more troubling. ...

Glyphosate had been used for decades as a pre-emergence herbicide in commercial agriculture. The introduction of herbicide-resistant GMO soybeans and other herbicide-resistant crops made glyphosate the most popular herbicide for grain farmers in the U.S. As the use of glyphosate in post-emergence applications increased, several important weeds, among them Palmer amaranth or pigweed (Amaranthus pal ...

Dioxin and other dioxin-like chemicals are persistent environmental pollutants that threaten human and animal health due to their stability in the environment and their ability to accumulate in the food chain toward eventual human consumption. Incidents of dioxins being found in the food and animal feed chain have led to numerous recalls with consequent impacts on human and animal health as well a ...