Keyword: Odors

Briefs: Test & Measurement
The miniaturized detector mimics the process dogs use to detect cancer and other diseases by smell.
Briefs: Materials

When it comes to the “smell test,” the nose isn't always the best judge of food quality. Now in a study appearing in ACS’ journal Nano Letters, scientists...

Application Briefs: Test & Measurement
Stanford Research Systems
Sunnyvale, CA

The Robotic External Leak Locator (RELL) — a collaboration between NASA's Johnson Space Center and Goddard Space Flight...

INSIDER: Sensors/Data Acquisition

A small, thin square of an organic plastic that can detect disease markers in breath could soon be the basis of portable, disposable sensor devices. By riddling the thin plastic films with pores,...

Briefs: Materials
Colorimetric Indicator for Detection of AF-M315E

An easy and instant method of detection was needed for AF-M315E, a “green” propellant that produces very little vapor. This makes it hard to detect by smell or other active sensors.

Briefs: Sensors/Data Acquisition
Nanosensors for Medical Diagnosis

Many diseases are accompanied by characteristic odors, and their recognition can provide diagnostic clues, guide the laboratory evaluation, and affect the choice of immediate therapy. The study of the chemical composition in human breath using gas chromatography/mass spectrometry (GC/MS) has shown a correlation...

Briefs: Test & Measurement
Advanced Rolling Mechanics Analysis (AROMA) 1.0

AROMA uses a boundary-element formulation to calculate normal and shear pressure distributions and sub-surface stresses for elastic bodies in contact. In addition to handling static normal and sheer loading, it also solves the contact problem for rolling elements such as bearings, traction drives,...

Briefs: Materials
Nano-Ceramic Coated Plastics

Plastic products, due to their durability, safety, and low manufacturing cost, are now rapidly replacing cookware items traditionally made of glass and ceramics. Despite this trend, some still prefer relatively expensive and more fragile ceramic/glassware because plastics can deteriorate over time after exposure to...

Briefs: Mechanical & Fluid Systems
Waterless Clothes-Cleaning Machine

A waterless clothes-cleaning machine has been developed that removes loose particulates and deodorizes dirty laundry with regenerative chemical processes to make the clothes more comfortable to wear and have a fresher smell. This system was initially developed for use in zero-g, but could be altered for 1-g...

Briefs: Electronics & Computers

Since 9/11, we are increasingly threatened by terrorist plots — the release of noxious substances into crowded public places or on airplanes, in crowded...

Briefs: Physical Sciences
Ion-Mobility Spectrometric Determination of Hydrazines

Hydrazine, monomethylhydrazine, and unsymmetrical dimethylhydrazine can be detected and measured at concentrations as low as 10 parts per billion in the presence of ammonia at concentrations as high as 10 parts per million (greater than the odor threshold concentration of ammonia,...