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Detection of presence of chemical precursors
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 2009 |
| Description | Methods and systems for determining if one or more target molecules are present in a gas, by exposing a functionalized carbon nanostructure (CNS) to the gas and measuring an electrical parameter value EPV(n) associated with each of N CNS sub-arrays. In a first embodiment, a most-probable concentration value C(opt) is estimated, and an error value, depending upon differences between the measured values EPV(n) and corresponding values EPV(n;C(opt)) is computed. If the error value is less than a first error threshold value, the system interprets this as indicating that the target molecule is present in a concentration C.apprxeq.C(opt). A second embodiment uses extensive statistical and vector space analysis to estimate target molecule concentration. |
| File Size | 907841 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100008468 |
| Archival Resource Key | ark:/13960/t4jm77s8s |
| Language | English |
| Publisher Date | 2009-11-24 |
| Access Restriction | Open |
| Subject Keyword | Inorganic, Organic And Physical Chemistry Errors Patents Statistical Analysis Nanostructure Characteristics Chemical Composition Vector Spaces Detection Carbon Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
