Award Data

Rotating wall vessels (RWV) are widely used for cell culture in simulated microgravity conditions. Sensor technologies capable of monitoring the expression of proteins on a large scale (proteomics) are needed to fully exploit the unique capabilities of RWVs. This Phase II effort is part of a program to develop an advanced analytical monitoring system for quantitative detection of bioreactor biopro ...

Rotating wall vessels (RWV) are widely used for cell culture in simulated microgravity conditions. Sensor technologies capable of monitoring the expression of proteins on a large scale (proteomics) are needed to fully exploit the unique capabilities of RWVs. This Phase II effort is part of a program to develop an advanced analytical monitoring system for quantitative detection of bioreactor biopro ...

This research will investigate a new technique for analyzing operation characteristics of future space transportation systems using a variation of activity based cost modeling. The unique element of the new technique is its focus on simulation modeling to translate vehicle design parameters into a set of activities and a related process map in a domain (operations characteristics of future space v ...

Several technologies are under development to replace conventional x-ray film with digital converters. More of the penetrating x-rays are absorbed into the detector because of its thicker stopping material. Current x-ray conversion materials are limited because of their relatively low atomic number and density. The high atomic number and high density of mercuric iodide can offer superior stopping ...

Small light-weight satellites and space vehicles under development for future NASA missions have reduced thermal mass and are rapidly affected by changes in orbital conditions, resulting in large temperature variations. Restrictions on payload weight and volume limit the usefulness of many thermal control system technologies. To address this problem, Eclipse Energy Systems, Inc. (EES) has suggeste ...

Solar sails use a thin reflecting membrane to deflect sunlight, converting the momentum of solar photons striking the sail to a means of spacecraft propulsion. The trajectory of the sail-powered spacecraft may be controlled by through a mechanical arrangement or through the use of an electrochromic material that changes reflectivity or transmittance in response to the application of an electric po ...

Small light-weight satellites and space vehicles under development for future NASA missions have reduced thermal mass and are rapidly affected by changes in orbital conditions, resulting in large temperature variations. Restrictions on payload weight and volume limit the usefulness of many thermal control system technologies. To address this problem, Eclipse Energy Systems, Inc. (EES) has suggeste ...

Solar sails use a thin reflecting membrane to deflect sunlight, converting the momentum of solar photons striking the sail to a means of spacecraft propulsion. The trajectory of the sail-powered spacecraft may be controlled by through a mechanical arrangement or through the use of an electrochromic material that changes reflectivity or transmittance in response to the application of an electric po ...

Extended operations and sleep loss can lead to fatigue, decrements in decision making, and other challenges to performance, productivity, and safety. The NASA Ames Research Center's Fatigue Countermeasures Group has conducted an extended program of research to develop and evaluate operationally useful countermeasures to mitigate the adverse effects of fatigue. This proposal describes an effort to ...

Gas sensors based on metal oxides are known to be widely used for the detection of gases, aromatic hydrocarbon, etc., but such sensors lack selectivity, and operation at high temperatures is required. We have proved feasibility of our approach in Phase I, which focused on the use of highly organized ultrathin films of conducting polymers synthesized/processed via the layer-by-layer self-assembly t ...