The increased demand and consumption of fossil fuels have raised interest in finding renewable energy sources throughout the globe. Much focus has been placed on optimizing microorganisms and primarily microalgae, to efficiently produce compounds that can substitute for fossil fuels. However, the path to achieving economic feasibility is likely to require strain optimization through using avail...

A major goal of training to improve the performance of prolonged, continuous, endurance events lasting up to 3 h is to promote a range of physiological and metabolic adaptations that permit an athlete to work at both higher absolute and relative power outputs/speeds and delay the onset of fatigue (i.e., a decline in exercise intensity). To meet these goals, competitive endurance athletes undert...

This article reviews and compares assessments of three biodiesel fuels: (1) transesterified lipids, (2) hydrotreated vegetable oils (HVO), and (3) woody biomass-to-liquid (BTL) Fischer-Tropsch diesel and selected feedstock options. The article attempts to rank the environmental performance and costs of fuel and feedstock combinations. Due to inter-study differences in goal and study assumptions...

This paper describes experiments in which the combustion of animal tissue (pork) was measured under a variety of conditions that may be encountered in fire scenes. Combustion depends on substantial preheating of the tissue by an external heat source and the availability of a porous wick (such as charred cellulosic material). Combustion of moderate-size samples can proceed at a moderate rate of ...

During the past twenty years, the use of wood has become popular as an alternative to conventional home heating fuels. Part of this movement has been due to uncertainty about the availability of fossil fuels. About ten percent of space heating in urbanized areas of the northern United States is from wood burning, with up to fifty percent in some .smaller, rural towns (42, 63, 75, 85). Wood is o...

BACKGROUND The global focus on improved cookstoves (ICSs) and clean fuels has increased because of their potential for delivering triple dividends: household health, local environmental quality, and regional climate benefits. However, ICS and clean fuel dissemination programs have met with low rates of adoption. OBJECTIVES We reviewed empirical studies on ICSs and fuel choice to describe the ...

Excessive diversion of metabolic fuels away from oxidation and into adipose tissue storage depots, such as underfeeding or extraordinary levels of energy expenditure, can induce nutritional infertility. Treatment with pharmacological doses of insulin reduces metabolic fuel availability and suppresses both ovulatory cyclicity and pulsatile luteinizing hormone release in females of several mammal...

organized work. It is not surprising, therefore, that the active groups of the enzymes should only be capable of acting in association with a carrier of a given structure. For, orderly biological processes are unthinkable without presupposing structure, and it is therefore out of the question that any living constituent of protoplasm could consist of structureless, fluid, independently displace...

Economic development is mainly dependent on fossil fuels. The massive use of fuels has led to changes in the climate environment, which deterioration air quality affected people’s daily lives. This paper introduces green growth level as a control variable explore connection between carbon dioxide emissions and economic growth. It uses EKC algorithm VEC model analyze Nanjing city’s data from 199...

The subject matter of this paper, if treated in the general sense, covers an extremely wide field to which it is impossible to do justice in the time allocated. It is even difficult to cover the subject adequately if we confine ourselves only to the furnace design of bagasse fired sugar mill boilers. I therefore intend to give a short summary of past and present bagasse furnace designs and cove...