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2. Olfactometer - Wikipedia

   en.wikipedia.org/wiki/Olfactometer

   In these designs, air flows continuously through or over the odor source and is then transported via tubing to the subject. Vacuum pressure plays an important role in a continuous flow olfactometer, where it is utilized both to switch between odorized air flow and control flow and to evacuate odors, often just below the subject’s nose. The [4]

3. Machine olfaction - Wikipedia

   en.wikipedia.org/wiki/Machine_olfaction

   There are three basic detection techniques using conductive-polymer odor sensors (polypyrrole), tin-oxide gas sensors, and quartz-crystal micro-balance sensors. [ citation needed ] They generally comprise (1) an array of sensors of some type, (2) the electronics to interrogate those sensors and produce digital signals, and (3) data processing ...

4. Electronic nose - Wikipedia

   en.wikipedia.org/wiki/Electronic_nose

   The detection system, which consists of a sensor set, is the "reactive" part of the instrument. When in contact with volatile compounds, the sensors react, which means they experience a change of electrical properties. [8] In most electronic noses, each sensor is sensitive to all volatile molecules but each in their specific way.

5. Olfactory system - Wikipedia

   en.wikipedia.org/wiki/Olfactory_system

   Allomones include flower scents, natural herbicides, and natural toxic plant chemicals. The info for these processes comes from the vomeronasal organ indirectly via the olfactory bulb. [16] The main olfactory bulb's pulses in the amygdala are used to pair odors to names and recognize odor to odor differences. [17] [18]

6. What’s that smell? Mystery odor pervades Wichita, but city ...

   www.aol.com/news/smell-mystery-odor-pervades...

   A resident who said she works at Towne East Square said the odor had apparently entered the building. “I’m working at towne east rn (right now) and the mall smells like burnt rubber really bad ...

7. Odor detection threshold - Wikipedia

   en.wikipedia.org/wiki/Odor_detection_threshold

   The odor detection threshold is the lowest concentration of a certain odor compound that is perceivable by the human sense of smell. The threshold of a chemical compound is determined in part by its shape, polarity, partial charges, and molecular mass. The olfactory mechanisms responsible for a compound's different detection threshold is not ...

8. Why does my sneeze smell bad? An expert explains - AOL

   www.aol.com/why-does-sneeze-smell-bad-020025078.html

   When you breathe, air flows smoothly in and out of your nose, Ramakrishnan says. But when you sneeze, you expel air and change up that flow, forcing odorous particles in your nose or throat upward ...

9. That rotten egg smell could be a gas leak. What can you do to ...

   www.aol.com/news/rotten-egg-smell-could-gas...

   Natural gas leaks happen nearly every day in the U.S. — and they can be deadly if they go undetected. A report from a group of Texas environmental nonprofits released in June found around 2,600 ...