Both the gain and the quantum efficiency are adversely affected by the total amount of charge extracted from the MCP at the point of extraction.
In this case, the addition of surrogate recovery standards (SRSs) at the point of extraction and measurement of the recovery of these SRSs is used to assess (and possibly correct for) the method performance on a sample-by-sample basis.
A carbon tax, on the other hand, could be levied on all fossil carbon at the point of extraction or import.
A tax could be administered at the point of extraction, but it is also possible to levy it at the point of consumption – such as the household meter and the petrol station.
So we need some system in which the cost of the damage caused by CO2 emissions is paid at the gas pump or at the point of extraction and not by generations living later.
The ability to rapidly profile the volatility of crude oil, which is commonly transported by railroad, means decisions about proper transport containers can be made at the point of extraction in the field, helping to prevent accidental explosions.
We then use structural-path analysis to calculate the twenty most important supply chains whose impact could be captured by resource efficiency policies which act at the point of extraction and during the manufacturing process.
These fuels, developed more than a century ago, have been regulated primarily through safety and environmental rules at the point of extraction.
One solution is to take snapshots of the linkage system at the point of extraction for all research projects.
The data will be anonymised at the point of extraction using a participant ID code rather than the participants' personal data (such as their name, address or NHS number).
From this point of view, sugarcane bagasse has an important advantage, since it has already been collected and processed for the extraction of the juice, being immediately available at the plant site.
