EFFECTS OF AIR EXCESS RATIO ON COMBUSTION AND ENGINE PERFORMANCE IN A HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINE FUELLED WITH HEXANE AND N-HEPTANE FUEL MIXTURES

Homogeneous charge compression ignition engines are engines with low temperature combustion tendency and high thermal efficiency.The operating range of these engines, where there is no direct control over combustion, is limited because of knock and misfire problems.At this point, it is aimed to eliminate the knocking problem especially at high load

We extend the theory of Barles Jakobsen [3] for a class of almost monotone schemes to solve stationary Hamilton Jacobi Bellman equations.We show that the monotonicity of the schemes can be relaxed still leading to the convergence to Raquette a neige - Raquettes the viscosity solution of the equation even if the discrete problem can only be ZINC-COP

Background.Shark populations within the eastern Mediterranean are declining due to overfishing.Unfortunately, our knowledge on the biology of sharks and specifically dogfishes within eastern Mediterranean is extremely limited due to the lack of landings.Mustelus mustelus (Linnaeus, 1758) is one of such deficiently known cartilaginous fishes and the

Radiotherapy is a powerful cure for several types of solid tumours, but its application is often limited because of severe side effects in individual patients.With the aim to find biomarkers capable of predicting normal tissue side reactions we analysed the radiation responses of cells from individual head and neck tumour and breast cancer patients