Hydrogen is advantageous for use in internal combustion engines (ICEs) because of its high laminar flame speed and carbon-neutral characteristics. However, because of its low minimum ignition energy, abnormal combustions such as back-fire, pre-ignition, and knocking hinder its efficient supply...

In this study, a naturally aspirated spark ignition engine fueled by low calorific gas (LCG) was tested in both exhaust gas recirculation (EGR) and lean burn modes, and the effects of these modes on engine performance and combustion and emission characteristics were evaluated and compared. The...

Because of the global increase in the consumption of low-calorie natural gas, and increasing awareness of the mid-to long-term problem with the decrease in the calorific value of natural gas, actions are needed to minimize the problems with gas appliances. Most natural gas engines for small...

Hydrogen-natural gas blends (HCNG) have the advantage of lower emission levels, because of their lean combustion characteristics, compared to a direct injection diesel engine equipped with a high-cost fuel supply system and an aftertreatment system for heavy-duty vehicles. The HCNG engine has...

Gasoline direct injection (GDI) systems have higher power and fuel efficiency than multi-point injection (MPI) systems. The direct injection of fuel into the combustion chamber leads to improved fuel economy because intake air is cooled by fuel evaporation. Direct fuel injection also improves...

This study attempts to reveal how macroeconomic and technology policies that encompass the opportunity and individual drivers of entrepreneurship explain the dynamics of new firm formation in a country. To do so we rely on the Schumpeterian, industrial organization, and labor economics...

This paper describes the shared structure of Hollywood film consumption based on data obtained from the Variety International Film Guide (1995, 1998, 2000). It focuses on the consumption of the top 10 films in over 30 countries, using a longitudinal study to explain the structure of cultural...

This paper is a critical evaluation of Hayek's “Atavism of social justice” thesis, suggesting an alternative explanation of the widespread demands for social justice in contemporary society. It is based on the analysis of the nature of entrepreneurship and its tendency to incite envy. The...

In line with the economic crisis and rapid socio-demographic changes, the interest in ‘social’ and ‘well-being’ indicators has been revived. Social indicator movements of the 1960s resulted in the establishment of social indicator statistical frameworks; that legacy has remained intact...