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System and Method for Providing Vertical Profile Measurements of Atmospheric Gases
data.commerce.gov | Last Updated 2015-03-25T20:59:37.000ZA system and method for using an air collection device to collect a continuous air sample as the device descends through the atmosphere are provided. The air collection device may be one or more coils of thin-walled elongated hollow tubing having a small interior diameter. The thin-walled elongated hollow tubing may be of a substantially nonreactive and nonabsorptive material such as stainless steel. A valve or the like controls the flow of air into and out of the tubing with one of the ends of the tubing closed and the other of the ends open at the beginning or end of the ascent and closed substantially at the end of the descent to seal the continuous air sample in the air collection device. The air collection device may be insulated and have cushioning. Once the continuous air sample is collected in the air collection device, it is analyzed to determine the presence and mole fraction of trace gases at different altitudes in the atmosphere. A high resolution continuous vertical profile of the trace gas may be created. The air collection device may also be used to store a sample gas using a compressor which draws or pushes the gas into the air collection device over a selected period of time. The stored gas may be analyzed in the same manner as the atmospheric air to obtain a time history of the gas sample.
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Frequently Asked Questions About OIG Investigations
data.commerce.gov | Last Updated 2015-03-25T20:59:37.000ZFrequently asked questions (FAQs) with answers of what to expect from Inspections. This page provides the public links to the Departmental Administative Orders on Investigations 207-10 and Department Organization Order 10-13 with a description of the Investigative process. Quality standards for investigations are included along with tha link to the Attorney General for Offices of Inspectors General with Statutory Law Enforcement Authority. It also provides POC information for the Principal Assistant
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DNA Sampling Hook
data.commerce.gov | Last Updated 2015-03-25T20:59:37.000ZThe DNA Sampling Hook is a significant improvement on a method of obtaining a tissue sample from a live fish in situ from an aquatic environment. A tissue sample taken from a live fish can be used for DNA analyses, which can identify the species of fish, as well as the unique individual fish. Taking a small tissue sample without bringing the fish to the surface is important as it allows for observing the fish community without harming the individual fish by inducing barotrauma or other stresses associated with bringing a fish up from depth, which can be lethal to the animal. These tissue samples are obtained by hook and line methods and do not capture or traumatize the fish resulting in a non-lethal and non-destructive method of observing fish individuals and species. The DNA Sampling Hook is specifically designed to virtually eliminate a condition called double bites, in which more than one individual fish gives up tissue to the same hook. It is also designed to protect the tissue sample in an enclosed manner and the device can be reused repeatedly for a total overall reduction in cost for programs requiring extensive numbers of tissue samples for DNA analysis.