WO tallgrass prairie sites with different grazing histories and fuel accumulation were burned to investigate vegetation response to wild fires of differing intensity. Headfires were ignited 5 September 1985 under wildfire weather conditions (37 C air temperature, 36% relative humidity and wind gusts to 40 km/h). One of the burned plots had not been grazed for the past 3 years and had 1000 g/m2 ...

This paper begins a series studying D-modules on the Feigin-Frenkel semi-infinite flag variety from the perspective of the Beilinson-Drinfeld factorization (or chiral) theory. Here we calculate Whittaker-twisted cohomology groups of Zastava spaces, which are certain finite-dimensional subvarieties of the affine Grassmannian. We show that such cohomology groups realize the nilradical of a Borel ...

INTRODUCTION U.S. greenhouse gas (GHG) emissions rose 16 percent between 1990 and 2004, while those from light-duty vehicles rose 23%. (EPA 2006) During the same period, GDP increased 51% (BEA 2005) and VMT rose 37% – more than doubling the nation’s population increase. (Davies et al. 2007 and EPA 2006) While GHGs are on the rise, public policy can result in substantial energy savings. U.S. Cor...

In this issue (P94), Kutoh reports type 2 diabetic patients who showed changes in cardiac function which is concomitant with changes in ketone bodies by using one of sodium glucose cotransporter 2 inhibitors (SGLT2i), tofogliflozin [1], proposing a possible mechanism for SGLT2i-mediated prevention of heart failure. EMPA-REG OUTCOME trial showed a striking relative risk reduction in hospitalizat...

In this paper, we present results of Particle-In-Cell simulations of the plasma behavior in the vicinity of gaps in castellated plasma-facing components. We studied gaps in the test limiter of TEXTOR, which is a plasma-facing component designed for studies of impurity transport and fuel retention, mainly via hydrocarbon layer formation. The castellated limiter tiles have been analyzed using the...

Background: The thriving of biodiesel industry has led to produce 10% (v/v) crude glycerol, thus creating an overflow problem. Biofuel production is restricted by Escherichia coli due to its toxicity to bacterial cells. Therefore, a platform chemical and fuel additive 2,3-butanediol (2,3-BD) with low toxicity to microbes could be a promising alternative for biofuel production by recombinant E. ...

There is a need for alternative energy sources to petroleum-based fuels due to the depletion of the world’s petroleum reserves, global warming and environmental concerns. Biodiesel is a clean and renewable fuel which is considered to be the best substitution for diesel fuel (Singh & Singh, 2010). Soybean oil is one of the major feedstocks for biodiesel production. According to United States Dep...

A numerical investigation of fuel composition effects on spray combustions is presented. A new discrete multicomponent (DMC) fuel model was used to represent the properties and composition of multi-component fuels. A multi-dimensional CFD code, KIVA-ERC-Chemkin, that is coupled with improved sub-models and the Chemkin library, was employed for the simulations. A large-bore, optically accessible...

In the majority of modern forest management systems, mature trees are harvested above the root collar, leaving stumps in the ground. Due to widespread concern about climatic change caused by anthropogenic emissions of greenhouse gases, increasing prices of fossil fuels and a desire to improve energy security, there is a growing interest in the exploitation of alternative sources of energy, incl...

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...