Sentence examples for vehicular emission from inspiring English sources

Effective measures include the restriction of using only natural gas for all new power plants and progressive tightening of vehicular emission standards.

These catalysts are very active and selective in the catalytic reduction of NOx with iso-butane; they have a high durability under conditions simulating vehicular emission.

To explore factors affecting vehicular emission models, the present study provides results and some interpretations from the MARS and B-MARS models.

Five vehicular emission predictor variables, namely, speed (m/s), acceleration (m/s 2), power (W), temperature (° C) and load (Nm) were used with the response variable of NO X (g/s) in an attempt to identify the relationships that vehicular emission models developers wish to understand.

The basic problem in vehicular emission modelling is how best to determine the fundamental relationship between dependent variables, and vector of predictors, such as speed, acceleration, load, power, ambient temperature including other factors.

The information generated by our methodology can then be entered in vehicular emission models that rely on vehicle specific power, i.e., comprehensive modal emissions model (CMEM), international vehicle emissions (IVE), or motor vehicle emission simulator (MOVES) to compute energy consumption and vehicular emissions for various air pollutants.

They account for over 90 percent of vehicular emissions of particulates and nitrogen oxides in mainland China, studies have found.

The environmental agency broke with decades of precedent last month and denied California a waiver to move forward with its proposed limits on vehicular emissions of heat-trapping gases like carbon dioxide.

Mary D. Nichols, thechairwoman of the Air Resources Board, the state agency charged with putting California's 2002 law on vehicular emissions into practice, said the suit was filed quickly because "the states didn't want to sleep on their rights".

In and near regions of urbanization and heavy industrial activity, the enhanced deposition and precipitation of sulfur in the form of sulfuric acid, and of nitrogen oxides in the form of nitric acid (HNO3), resulting from vehicular emissions, have been associated with damage to fish populations, forests, statues, and building exteriors.

Sam Leonard, the director of vehicular emissions policy at General Motors, said oxygenates may be of some benefit when a car is first started up, but that their importance for carbon monoxide reduction is declining as cars with carburetors are replaced by cars with fuel injection.