We investigate an automobile supply chain where a manufacturer and a retailer serve a market with a fuel-effi cient automobile under a scrappage program by the government. The program awards a subsidy to each consumer who trades in his or her used automobile with a new fuel-effi cient automobile, if the manufacturer’s suggested retail price (MSRP) for the new one does not exceed a cutoff level....

The numerous energy challenges facing the world coupled with the lack of sustainability of the non-renewable “fossil fuels world” has led the search to sustainable alternatives. Biofuel has emerged as an alternative with great promise with quite some problems to contend with; this include the development of feasible technologies such as the search for highly efficient saccharification enzymes; ...

This paper was discussed the current possibility technology can be used to design a high performance steam propulsion system for an LNG carrier. The propose system was designed based on the available technology for marine industry. The technical performance analysis was carried out to evaluate the improvement of the system. Economic performance for this system was also discussed in paper. The s...

Light olefins such as ethylene, propylene, and butylenes, are basic building blocks for petrochemicals. Further, these olefins are also useful for production of clean fuels such as alkylates – which have high octanes but no sulfur, olefins, and aromatics – or as octaneenhancers such as ethers. The conventional olefin production process is steam cracking of C2−C4 light paraffins from natural gas...

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...

High price of chippers and small scale of forestry management area seemed to create a standstill situation of chip utilization system in Japan. By combining the benefits of small scale forestry and low price chippers, a simple and low-cost chip supply model could be established, creating new employments opportunities. The object of this study is to propose the benefits of a chip supply system i...