reduction of exhaust emissions is a major research task in diesel engine development in view of increasing concerns regarding environmental protection and stringent exhaust gas regulations. simultaneousreduction of nox emissions and particulate matter is quite difficult due to the soot/nox trade-off and isoften accompanied by fuel consumption penalties. towards this aim, automotive engineers ha...

Discharging industrial wastes into the soil causes accumulation of pollutants, especially petroleum hydrocarbons and used engine oil, in the environment. This study was done to find some bacterial strains capable of removing the engine oil from contaminated soils. Soil samples contaminated by engine oil were collected from some polluted area of Hamadan City, and then their bacterial strains wer...

Lines In[1] and Out[2] below demonstrate a simple interaction with through a notebook interface.1 On line In[1] , the type function object is applied on a representation of the MATLAB expression tanh(3.78i). ’s response, shown on Out[2] , is the inferred type of tanh(3.78i). In this case, “type” is the expression {v, i, s} where v, i and s are the value range, intrinsic type and array shape of ...

This paper presents an experimental study for the Hungarian State Railway Company (MÁV). The engine assignment problem was solved at MÁV by their experts without using any explicit operations research tool. Furthermore, the operations research model was not known at the company. The goal of our project was to introduce and solve operations research model for the engine assignment problem on rea...

This paper presents an experimental study for the Hungarian State Railway Company (MÁV). The engine assignment problem was solved at MÁV by their experts without using any explicit operations research tool. Furthermore, the operations research model was not known at the company. The goal of our project was to introduce and solve an operations research model for the engine assignment problem on ...