The route has been steadily improved, the roughest sections graded, and in some cases sealed.
Since its inception in 1969 the IRI model has been steadily improved with newer data and with better mathematical descriptions of global and temporal variation patterns.
The natural lubricating capacity of crude oil has been steadily improved through the development of a wide variety of products designed for the specific lubricating needs of the automobile, the airplane, the diesel locomotive, the turbojet, and power machinery of every description.
The IRI model has been steadily improved with newer data and with better mathematical descriptions of global and temporal variation patterns since its inception (Bilitza and Reinisch, 2008).
But over time, the app has been steadily improved, as has Evernote's contacts management app, Hello, which was introduced at the same time.
Depending upon these types of observations, the IRI model has been steadily improved as IRI-78, (Rawer et al. 1978), IRI-85 (Bilitza 1986), IRI-1990 (Bilitza 1990), IRI-2000 (Bilitza 2001), and IRI-2007 (Bilitzandnd Reinisch 2008), and the latest is IRI-2012 (Bilitza et al. 2014).
The job market has been steadily improving.
However, the school has been steadily improving under the stewardship of the new head, Dave Hooker.
Volkswagen has been steadily improving its cars and gaining share at the expense of both Ford and Opel.
Shotton says the efficiency of the lights has been steadily improving in recent months.
The approach with which the environmental footprint of PV was determined has been steadily improving over the years.
