Secondly, the Monte Carlo numerical approach allows scalability on parallel machines that is practically unachievable by means of other techniques based on finite difference or finite element methods.
Complete removal of total Kjeldahl Nitrogen (TKN) is practically unachievable in the WWTP's having a pre-anaerobic system, wherein the anaerobic reactor is positioned behind the aerobic reactor and the mixed liquor involving nitrate is recirculated to the aerobic reactor from the secondary clarifier.
I am, therefore, against universal credit in principle, but also fear the programme is practically unachievable.
In reality, most analysts, including the Institute for Fiscal Studies, believe cuts on that sort of scale would be politically, and practically, unachievable.
Field writes: "I am, therefore, against universal credit in principle, but I also fear that the programme is practically unachievable".
As MPs prepare to vote on the reforms in the Commons on Tuesday, Field says the universal credit is "practically unachievable" and will "rot the soul" of low-paid workers by encouraging dependency.
Practically, the level of resource required to emulate HELP was viewed as unachievable: to deliver the intervention to all patients on a typical elderly care ward would require substantial additional staffing.
But people like Yes and Jeff Wayne were trying to achieve the unachievable: to write a rock symphony.
I often return to higher inflation as a strategy because something like Mr Summers' five-year programme of deficit-financed public investment looks politically unachievable to me.
How much easier than to starve all day is it to amend the absurd, unachievable aesthetic to which all those serial-dieting suckers are struggling to conform.
We are practically asked to follow suit.
