Hydrogen is considered to be a suitable supplementary fuel for Spark Ignition (SI) engines. The energy and exergy analysis of engines important provide theoretical fundaments the improvement efficiency. However, few studies on balance engine working under Direct Injection (HDI) plus Gasoline Port (GPI) mode lean-burn conditions are reported. In this paper, effects two different modes SI present...

As the most reliable alternative energy source for traditional fuel engines, natural gas has been widely used in inland river marine engines. The engine is faced with problem of increased cyclic variations under condition lean combustion. In this paper, a multi-point injection spark ignition tested different burn degrees to investigate correlation between parameters and variation, including acc...

Neoplastic disease continues to represent one of the most formidable challenges in modern medicine. Many neoplastic lesions stem from the cumulative outcome of a variety of genetic mutations, allowing cells to rely on multiple and often redundant pathways to sustain undesirable growth [1]. In contrast, several forms of leukemia appear to result from unique translocation events that lead to the ...

Introduction Lean NOx Trap (LNT) catalysts are viable catalysts for the abatement of NOx emissions from lean–burn engines [1]. These systems work under periodic cyclic conditions, alternating lean (NOx storage) and rich conditions during which the stored NOx are reduced by a reductant. Although PtBa/Al2O3 is a typical model catalyst for this application, systems containing K have also been prop...

Ignition capability is a critical design constraint for aeronautical gas turbines. However the current trend toward overall lean burn detrimental to engine ignition and relight system must be adapted ensure fast reliable light-round in all circumstances. As stochastic phenomenon, optimization of an requires build probability maps, which difficult costly with either experiment or numerical simul...