The output of Gas turbine (GT) power plants operating in the arid and semiarid zones is affected by weather conditions where the warm air at the compressor intake decreases the air density and hence reduces the net output power far below the ISO standard (15oC and 60% relative humidity). The power degradation reaches an average of 7% for an increase in temperature by only 10oC above the 15 C ISO standard. Furthermore; in hot summer days the plants...

The central objective of the International Year of Sanitation was to put the global community on track to achieve the Millennium Development Goals MDG sanitation target. However, one year later, it is still difficult to keep sanitation high on the agenda, while practical action is required to encourage demand driven and sustainable solutions. With the support of the German Ministry for Development and Cooperation and together with the European Investment...

By using Natural States Research, Inc.'s* new technology, we can convert all types of waste plastics into liquid hydrocarbon fuel by setting the temperature profile from 370 degrees C to 420 degrees C. We can resolve all waste plastic problems including land, ocean, river and greenhouse effects. Many researchers and experts have done research into waste plastics; some of the theses are on the thermal degradation process, the pyrolysis process and...

"Honda Motorcycle Hacking: Honda make some great motorcycles but then they get old - riders' reports on their worst bikes: Superdreams, Dreams, G5's,CG125, CM125, FT500, XBR500, VF500, VF's, GL's, CX's, VT's and many more."--

Fine Grained Alumina-Based Ceramics Produced Using Magnetic Pulsed Compaction. The aim of the work is to fabricate alumina-based ceramics with high wear resistance. It is achieved by the usage of weakly aggregated nanopowders and by the application of magnetic-pulsed compaction as well as by the addition of titania, magnesia and zirconia

The Internet lets us share perfect copies of our work with a worldwide audience at virtually no cost. We take advantage of this revolutionary opportunity when we make our work "open access": digital, online, free of charge and free of most copyright and licensing restrictions. Open access is made possible by the Internet and copyright-holder consent, and many authors, musicians, filmmakers and other creators who depend on royalties are understandably...

When certain disease-causing bacteria, viruses or parasite contaminate food, they can cause food-related diseases. Another word for such a bacterium, virus, or parasite is “pathogen”. Since food-related diseases can be serious, or even fatal, it is important to know and practice safe food-handling behaviors to help reduce the risk of getting sick from contaminated food. According to the Codex Alimentarius Commission (CAC), “food safety is the...

Integrating Behaviors for Mobile Robots: an Ethological Approach An architecture for behaviour generation named JDE has been presented. Its distinguish characteristics are its hierarchical nature and the use of schemas as the basic building blocks. Its hierarchy model is taken from ethology and intended as a predisposition of the system to perceive certain stimuli and to response in a certain way to them.

The residues coming from woodlands and agricultural exploitation constitute the most abundant biomass available on earth. Its importance as a source of renewable energy has grown in addition to the environmental impact. Biomass waste is a lignocellulosic feedstock which contains three main biopolymers: cellulose, hemicellulose and lignin. It could be utilized for the production of a number of value-added products due to their chemical composition,...

Excerpted from Introduction Nano-porous silica aerogels are unique materials often having a high specific surface area, a high porosity (75-99%), a low thermal conductivity (0.01-0.03W/mK), and a low index of refraction. Because of their unique properties, aerogels have been extensively studied, not only for use as transparent thermal insulators but also as inter-metal dielectric materials, optical and acoustic applications, and the space industry...