Keyword: Water

Briefs: Manufacturing & Prototyping
Antimicrobial-Coated Granules for Disinfecting Water

Methods of preparing antimicrobial-coated granules for disinfecting flowing potable water have been developed. Like the methods reported in the immediately preceding article, these methods involve chemical preparation of substrate surfaces (in this case, the surfaces of granules) to enable...

Briefs: Materials
Two Catalysts for Selective Oxidation of Contaminant Gases

Two catalysts for the selective oxidation of trace amounts of contaminant gases in air have been developed for use aboard the International Space Station. These catalysts might also be useful for reducing concentrations of fumes in terrestrial industrial facilities — especially...

Briefs: Energy
High-Resolution Wind Measurements for Offshore Wind Energy Development

A mathematical transform, called the Rosette Transform, together with a new method, called the Dense Sampling Method, have been developed. The Rosette Transform is invented to apply to both the mean part and the fluctuating part of a targeted radar signature using the Dense...

Briefs: Manufacturing & Prototyping
Process for Making a Noble Metal on Tin Oxide Catalyst

To produce a noble metal-on-metal oxide catalyst on an inert, high-surface-area support material (that functions as a catalyst at approximately room temperature using chloride-free reagents), for use in a carbon dioxide laser, requires two steps: First, a commercially available, inert,...

Briefs: Mechanical & Fluid Systems

Some refinements have been conceived for a proposed apparatus that would generate hydrogen (for use in a fuel cell) by means of chemical reactions among magnesium, magnesium...

Briefs: Electronics & Computers
Miniature Low-Noise G-Band I-Q Receiver

Weather forecasting, hurricane tracking, and atmospheric science applications depend on humidity sounding of atmosphere. Current instruments provide these measurements from ground-based, airborne, and low Earth orbit (LEO) satellites by measuring radiometric temperature on the flanks of the 183-GHz water...

Briefs: Materials
A Computer Model for Analyzing Volatile Removal Assembly

A computer model simulates reactional gas/liquid two-phase flow processes in porous media. A typical process is the oxygen/wastewater flow in the Volatile Removal Assembly (VRA) in the Closed Environment Life Support System (CELSS) installed in the International Space Station (ISS). The...

Briefs: Physical Sciences

A portable instrument incorporates both mass spectrometry and dew point measurement to provide real-time, quantitative gas measurements of helium, nitrogen,...

Articles: Manufacturing & Prototyping
BreezeRite Air Filtration Module Rob Luchsinger
Pipe Creek, TX

BreezeRite, an indoor air modular filtration system, attaches to new or existing ceiling fans,...

Articles: Green Design & Manufacturing

(Winner of an HP Workstation)

Sustainable, Durable Bridges of the Future

Ibrahim Al-Khattat

Talacre, Wales, United Kingdom

Alight,...

Briefs: Manufacturing & Prototyping
Electrochemical Hydrogen Peroxide Generator

Two-electron reduction of oxygen to produce hydrogen peroxide is a much researched topic. Most of the work has been done in the production of hydrogen peroxide in basic media, in order to address the needs of the pulp and paper industry. However, peroxides under alkaline conditions show poor...

Briefs: Physical Sciences

This software has been designed to detect water bodies that are out in the open on cross-country terrain at mid- to far-range (approximately 20–100 meters), using imagery acquired from a stereo pair...

Briefs: Software
Characterization of Cloud Water-Content Distribution

The development of realistic cloud parameterizations for climate models requires accurate characterizations of sub-grid distributions of thermodynamic variables. To this end, a software tool was developed to characterize cloud water-content distributions in climate-model sub-grid scales.

Briefs: Mechanical & Fluid Systems

A bladderless water tank (see figure) has been developed that contains capillary devices that allow it to be filled and emptied, as needed, in microgravity. When filled with water, the tank...

Briefs: Mechanical & Fluid Systems
Large-Flow-Area Flow-Selective Liquid/Gas Separator

This liquid/gas separator provides the basis for a first stage of a fuel cell product water/oxygen gas phase separator. It can separate liquid and gas in bulk in multiple gravity environments. The system separates fuel cell product water entrained with circulating oxygen gas from the outlet of...

Briefs: Physical Sciences

An improved magnetic levitation apparatus (“Maglev Facility”) has been built for use in experiments in which there are requirements to impose variable gravity (including zero gravity) in...

Briefs: Software

In 1999, NASA’s Lunar Prospector revealed concentrated hydrogen signatures detected in permanently shadowed craters at the lunar poles. While scientists have long speculated about the source of vast...

Briefs: Mechanical & Fluid Systems

Recent experiments with a flextensional piezoelectric actuator have led to the development of a sampler with a bit that is designed to produce and capture a full set of sample...

Briefs: Software
MIRO Computational Model

A computational model calculates the excitation of water rotational levels and emission-line spectra in a cometary coma with applications for the Microwave Instrument for Rosetta Orbiter (MIRO). MIRO is a millimeter-submillimeter spectrometer that will be used to study the nature of cometary nuclei, the physical...

Briefs: Physical Sciences
Fiber-Optic Continuous Liquid Sensor for Cryogenic Propellant Gauging

An innovative fiber-optic sensor has been developed for low-thrust-level settled mass gauging with measurement uncertainty

Briefs: Materials
Catalyst for Carbon Monoxide Oxidation

In many applications, it is highly desirable to operate a CO2 laser in a sealed condition, for in an open system the laser requires a continuous flow of laser gas to remove the dissociation products that occur in the discharge zone of the laser, in order to maintain a stable power output. This...

Briefs: Materials
Titanium Hydroxide — a Volatile Species at High Temperature

Titanium hydroxide, TiO(OH)2 (g), has been identified as the primary reaction product of TiO2 (s) + H2O (g) at high temperatures (1,200–1,400 °C) through the use of the transpiration technique. This technique is a well-established method used to...

Briefs: Green Design & Manufacturing

A water membrane evaporator (WME) has been conceived and tested at Johnson Space Center as an alternative to the contamination-sensitive and corrosion-prone evaporators currently used for dissipating heat from space...

Briefs: Physical Sciences

The Cryogenic Moisture Apparatus (CMA) is designed for quantifying the amount of moisture from the surrounding air that is taken up by cryogenic-tank-insulating material specimens while under typical conditions...

Briefs: Energy

NASA’s Jet Propulsion Laboratory has proposed a scheme for generating electric power from rivers and from ocean currents, tides, and waves that not entail the high maintenance...

Application Briefs: Test & Measurement
QE65000 Spectrometer
Ocean Optics
Dunedin, FL
727-733-2447
www.oceanoptics.com

An Ocean Optics QE65000 spectrometer has contributed measurements to the...

Application Briefs: Sensors/Data Acquisition
InGaAs shortwave infrared (SWIR) cameras
Sensors Unlimited, Goodrich Corp.
Princeton, NJ
609-520-0610
www.sensorsinc.com

Shortwave infrared (SWIR)...

Briefs: Physical Sciences

Robust mud detection is a critical perception requirement for Un manned Ground Vehicle (UGV) auton omous offroad navigation. A military UGV stuck in a mud body during a mission may have to be sacrificed or rescued,...

Briefs: Green Design & Manufacturing

A fine-water-mist fire-suppression device developed at John H. Glenn Research Center can be discharged uniformly in any orientation via a high-pressure gas propellant. Research...