GC: n CT: To meet its energy needs, each country uses the energy available to it in differing proportions. This is what we call the energy mix. Since the 19th century, the energy sources used to meet global demand have been mostly fossil fuels (coal, oil and natural gas). These
GC: n CT: The energy pile, also called heat exchanger pile, is a pile equipped with individual or several pipe circuits in order to enable exchange of heat with the surrounding soil. The function of energy piles is dual. The first function consists of transferring load from a construction into
GC: n CT: The rising cost of the energy bill brings additional pressure to household budgets’. As a result, some European households are spending a higher share of their budget on domestic energy services. Bearing the rising cost of the energy bill is particularly hard for low-income households, who may,
GC: n CT: At present there are four important energy resources: petroleum, coal, natural gas, and uranium-235. In the future oil shale and uranium-238 will probably join this list. On the demand side, the model specifies five demand categories: electricity, industrial heat, residential heat, and two transport categories. S: http://www.brookings.edu/~/media/projects/bpea/1973%203/1973c_bpea_nordhaus_houthakker_solow.pdf
GC: n CT: This analysis reviews and synthesizes the literature on the net energy return for electric power generation by wind turbines. Energy return on investment (EROI) is the ratio of energy delivered to energy costs. We examine 119 wind turbines from 50 different analyses, ranging in publication date from
GC: n CT: Energy saving is an important issue to both the environment and the economy. As most of us are using computers and their associated peripherals, such as monitors and printers, we can all contribute to saving energy by turning on their energy saving features. This will save a
GC: n CT: Which Energy Source is Best? It depends. Many alternative sources of energy are still being researched and tested. Technologies are continually being developed and enhanced to improve energy sources. Not all energies are ready for mass consumption, so you have to ask the right questions to find
GC: n CT: Energy storage — a key technology for global energy sustainability. The quality of life today is dependent upon access to a bountiful supply of cheap energy. For a sustainable future, the energy should be derived from non-fossil sources; ideally, it should also be reliable and safe, flexible
GC: n CT: Before its use in a reactor, uranium must undergo four processing steps to convert it from an ore to solid ceramic fuel pellets. These processes are: mining and milling, conversion, enrichment and fabrication. Mining and Milling Uranium miners use several techniques to obtain uranium: surface (open pit),
GC: n CT: Thermodynamics is a branch of physics which deals with the energy and work of a system. Thermodynamics deals only with the large scale response of a system which we can observe and measure in experiments. In aerodynamics, we are most interested in thermodynamics in the study of
GC: n CT: The government is working to protect our environment by reducing pollution, reducing the amount of waste sent to landfill, protecting areas of parkland, wildlife reserves and marine biodiversity, and enforcing regulations that kecep our water and air clean. We also help communities avoid or recover from flooding
GC: n CT: According to some EPA guidelines due to the importance of accurate cost information in making the decisions sketched out above, the term “environmental cost” has been introduced into the vocabulary of environmental managers. Today we are starting a series of posts related to the definition(s) and the
GC: n CT: Environmental Impact Assessment. One of the EPA’s key roles is to provide Government with advice on the environmental acceptability of development proposals and statutory planning schemes. Development proposals include proposals for mining, industry as well as infrastructure such as ports, railways and pipelines. Planning schemes include both
GC: n CT: Although some researchers believe that environmental sensitivities may have strictly psychological origins, a 1994 review of psychological studies found methodological and logical problems in the then current psychological research. Environmental sensitivity reactions to inhalation challenges may mimic panic disorder, which is classified as a psychiatric condition. However,
GC: n CT: Environmental sustainability involves making decisions and taking action that are in the interests of protecting the natural world, with particular emphasis on preserving the capability of the environment to support human life. It is an important topic at the present time, as people are realising the full
GC: n CT: Biotechnological approaches to reduce or modify lignin in biomass crops are predicated on the assumption that it is the principal determinant of the recalcitrance of biomass to enzymatic digestion for biofuels production. We defined quantitative trait loci (QTL) in the Intermated B73 x Mo17 (IBM) recombinant inbred
GC: n CT: Given the multifactorial etiology for MSD and its association with individual and workplace risk factors, their reduction and prevention will require a multidisciplinary effort. The science of ergonomics, biomechanics, epidemiology, and medicine are being used to better understand the interdependence of MSD. Ergonomics (Greek ergon = work
GC: n CT: Ethanol is an alternative fuel produced from starch contained in grains such as corn, grain sorghum, barley and sugarcane through a fermentation and distillation process that converts starch to sugar and then to alcohol (ethanol). Most ethanol in the U.S. is made from corn because it is
GC: n CT: Eutrophication is characterized by excessive plant and algal growth due to the increased availability of one or more limiting growth factors needed for photosynthesis (Schindler 2006), such as sunlight, carbon dioxide, and nutrient fertilizers. Eutrophication occurs naturally over centuries as lakes age and are filled in with