"build up influence" is a correct and commonly used phrase in written English.
It means to gradually increase one's power, authority, or impact on others. Example: Through years of hard work and dedication, she was able to build up influence in the company and eventually became the CEO.
Political opposition is not tolerated and family members have built up influence – and, in some cases, fortunes.
McKeon, who endorsed former state Sen. Tony Strickland as his replacement, will become the third California congressman to head for the exits when his term expires, further shaking up a delegation that has built up influence on Capitol Hill because of its stability over the years.
Simply fixing your problem by defining lowest value for nai, might be a good thing to do, but that requires that details of the dynamics of nai below a certain value are not relevant to your model and that the dynamics is faithfully represented otherwise and furthermore the fixing of the lowest level should not significantly influence the build up of relevant levels of nai.
As Dmitri Trenin, head of the Carnegie Moscow Centre, has argued, Russia has left the West and is trying to build up its influence in the former Soviet space.
China has been flexing its military muscles over disputed islands and is trying to build up regional influence with projects such as the Asian Infrastructure Investment Bank, of which America is not a part.
But his visit has already prompted the relocation of the meeting from Wroclaw to Warsaw, and will certainly give a higher profile to an event viewed in Brussels as an attempt by Poland to build up its influence beyond the EU.
It is likely that the accelerated kinetics at 24 °C result in more rapid formation of the intermediate, allowing it to build up and influence the observed signal.
