Showing 1 - 10 of 65
Based on CO2 acceptor gasification technology, a biomass anaerobic gasification technology for H2 production was proposed. Utilizing thermodynamic equilibrium calculation software FactSage 5.2, the rules of biomass/CaO/H2O and C/CaCO3/air reaction system involved in this H2 production technology...
Persistent link: https://www.econbiz.de/10010806456
The prediction of high extremes in sustained water level is very important for coastal engineering design and planning. The recorded historical water level datasets in Colombo, Sri Lanka, are not long enough for the traditional frequency analysis in predicting extreme water levels, such as 50-,...
Persistent link: https://www.econbiz.de/10010996614
This study examines the ability of government bond fund managers to time the bond market, based on their monthly or quarterly holdings of Treasury securities during the period 1997-2006. We nd that, on average, government bond funds exhibit signi cantly positive timing ability at the one-month...
Persistent link: https://www.econbiz.de/10012707460
We study the dynamic relation between aggregate mutual fund flow and market-wide volatility. Using daily flow data and a VAR approach, we find that market volatility is negatively related to concurrent and lagged flow. A structural VAR impulse response analysis suggests that shock in flow has a...
Persistent link: https://www.econbiz.de/10012753345
Persistent link: https://www.econbiz.de/10005375132
Based on the Partial Distribution [F. Dai, 2001] and the theory of Development Power [F. Dai, 2004], this paper discusses the power model of relation between development power (DP) and productivity. The power model also supports the hypothesis [F. Dai, 2005] that there are three kinds of energy...
Persistent link: https://www.econbiz.de/10005412817
Traveling salesman problem is a fundamental combinatorial optimization model studied in the operations research community for nearly half a century, yet there is surprisingly little literature that addresses uncertainty and multiple objectives in it. A novel TSP variation, called uncertain...
Persistent link: https://www.econbiz.de/10011077617
Taking the grape theme sightseeing garden of Hebei Academy of Forestry Sciences for example, this article discusses the suitable edible and wine making cultivation varieties, vineyard frame and cultivation techniques in the grape theme sightseeing garden, from the perspective of planning and...
Persistent link: https://www.econbiz.de/10011095892
Cycle-by-cycle variations in some parameters of the combustion and performance during a dual-fuel premixed charge compression ignition (PCCI) combustion process were investigated on a modified direct injection diesel engine with dimethyl ether (DME) as premixing fuel. Experiments were conducted...
Persistent link: https://www.econbiz.de/10011208358
In this study, effects of DME (dimethyl ether) pre-mixing ratio and cooled external EGR (exhaust gas recirculation) rate on combustion, performance and emission characteristics of a DME-diesel dual fuel PCCI (premixed charge compression ignition) engine were investigated in a 2105 engine. PCCI...
Persistent link: https://www.econbiz.de/10010809807