Environment

Briefs : Green Design & Manufacturing
An Alternative Molecular Sexing Method for the Florida Scrub-jay

A new method of molecular sexing is described that helps to understand population dynamics of the Florida Scrub-jay (FSJ). FSJ is an endemic, nonmigratory, monomorphic species of bird found on the Florida peninsula in lowgrowing oak or pine scrub. The current conservation status...

Briefs : Green Design & Manufacturing
Surface Water Ocean Topography (SWOT) Science Simulator

The SWOT Science Simulator simulates projected SWOT altimetry observations that can be applied to an ocean general circulation model, allowing the exploration of ideas and methods to optimize information retrieval from the proposed SWOT Mission, which is currently baselined to launch in...

Briefs : Physical Sciences
Digital Elevation Model Maker (DEMmaker)

The DEMmaker suite of software applications produces data products containing surface shape, reflectivity, and geomorphology (craters and rocks) for a desired planetary surface based on statistically accurate size and frequency distributions of geologic and surface impact features. The current version can...

Briefs : Test & Measurement
Nonlinear Swept Frequency Technique for CO2 Measurements Using a CW Laser System

The U.S. National Research Council recently identified the need for a near-term space mission of Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS). The primary objective of the ASCENDS mission is to make CO2 column...

Briefs : Green Design & Manufacturing
Sustainable Remediation Software Tool Evaluation

To advance the acceptance and incorporation of sustainable remediation metrics into the larger body of remedial work, the Center for Sustainable Groundwater and Soil Solutions (CSGSS) within the Savannah River National Laboratory (SNRL) created the Sustainable Remediation Initiative (SRI).

Briefs : Green Design & Manufacturing
Data Service Provider Cost Estimation Tool

The Data Service Provider Cost Estimation Tool (CET) and Comparables Database (CDB) package provides to NASA’s Earth Science Enterprise (ESE) the ability to estimate the full range of year-by-year lifecycle cost estimates for the implementation and operation of data service providers required by ESE...

Briefs : Green Design & Manufacturing
Pressure Shell Approach to Integrated Environmental Protection

In order to continue human exploration, habitat systems will require special shells to protect astronauts from hostile environments. This shell consists of multiple layers that can be tailored for specific environmental protection needs. Mainly, this innovation focuses on protecting...

Briefs : Green Design & Manufacturing
Carbon Dioxide Removal via Passive Thermal Approaches
A regenerable approach to separate carbon dioxide from other cabin gases by means of cooling until the carbon dioxide forms carbon dioxide ice on the walls of the physical device has been developed. Currently, NASA space vehicles remove carbon dioxide by reaction with lithium hydroxide (LiOH) or...
Briefs : Green Design & Manufacturing
Polymer Electrolyte-Based Ambient Temperature Oxygen Microsensors for Environmental Monitoring
An ambient temperature oxygen microsensor, based on a Nafion polymer electrolyte, has been developed. A challenge in the operation of Nafion-based sensor systems is that the conductivity of Nafion film depends on the humidity in the film. Nafion film...
Briefs : Green Design & Manufacturing
Improved, Low-Stress Economical Submerged Pipeline

A preliminary study has shown that the use of a high-strength composite fiber cloth material may greatly reduce fabrication and deployment costs of a subsea offshore pipeline. Above-water pipelines are often not feasible due to safety, cost, and environmental problems, and present, fixed-wall,...

Briefs : Green Design & Manufacturing
Radiation-Resistant Hybrid Lotus Effect for Achieving Photoelectrocatalytic Self-Cleaning Anticontamination Coatings

This innovation from Goddard Space Flight Center is an antibacterial, anti-contamination, and self-cleaning coating that uses nano-sized semiconductor semimetal oxides to neutralize biological pathogens and toxic chemicals, as...

Briefs : Green Design & Manufacturing
Spectroelectrochemical Instrument Measures TOC

A spectroelectrochemical instrument has been developed for measuring the total organic carbon (TOC) content of an aqueous solution. Measurements of TOC are frequently performed in environmental, clinical, and industrial settings. Until now, techniques for performing such measurements have included,...

Briefs : Green Design & Manufacturing
Combustor Computations for CO₂-Neutral Aviation

Knowing the pure component Cp0 or mixture Cp0 as computed by a flexible code such as NIST-STRAPP or McBride-Gordon, one can, within reasonable accuracy, determine the thermophysical properties necessary to predict the combustion characteristics when...

Briefs : Green Design & Manufacturing
Nickel-Zinc Battery System Technology

Société de Conseil et de Prospective Scientifique (SCPS), located in Rosny-sous-Bois, France, developed a technology that allows the nickel-zinc battery system to work as close as possible to its theoretical performance, with a long cycle life.

Briefs : Energy
Sliding Mode Pulsed Current Averaging IC Drivers for High-Brightness Light Emitting Diodes

Light Emitting Diode (LED) driver ICs associated with specific (uniquely operated) switching power supplies that optimize performance for High Brightness LEDs (HB-LEDs) have been developed. The LED drivers feature fewer external components and high power...