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you can exchange information from the development of technologies that enable the transmission of audio, video and images. With the knowledge of electromagnetic principles and technological developments of computers and networks like the Internet, was the technology of wireless networks, also known as Wireless. Wireless is an alternative to conventional wired networks, providing the same features, but in a flexible, economical and rapid deployment. The use also extends to various…

functions of the proposed system aiming at simplicity of handling users with the query system. Worrying about sustainability and the lowest environmental impact of energy consumption, we seek solutions of hardware that prioritizes energy savings. Totem was used to support the equipment that were produced with solar energy. The system is flexible and can work through conventional energy or photovoltaic (made by panels that convert solar energy into electricity). Our main goal to generate…

Chronopotentiometry and Electrochemical Impedance Spectroscopy (EIS) were used and the system was subject to different hydrogen loading conditions, besides X-Ray Photoelectron Spectroscopy (XPS) to characterize the resulting oxide. With the Cyclic Voltammetry it was possible to verify the characteristic of a valve metal, as niobium is classified, with stable oxide formation and difficult dilution. From results obtained at the OCP it was possible to verify a variation of its potential to…

recognized and used by industries to discuss and analyse cloud computing activities and functions. In spite this fact, similar approaches of their application were not identified in contexts related with the purpose of this dissertation. The NIST model was applied in two demonstration cases. In the first case, the model is used to support the design of cloud computing architecture for the system that supports the availability of Enterprise Resource Planning software in a…

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materials. To deepen knowledge about the raw materials behavior, used at Portobello S/A, was held a full characterization, in the pure state. However, due to chemical reactions during firing, they have a different behavior when burned at pure state or within a ceramic body, thus causing flaws in the interpretation of data. To have the raw materials controlled effectively, without failure of interpretation, was developed a characterization method using bases. The bases include a simple…

As a result, there was significant interest in both industry and medicine in developing new materials that can detect NO. Multiwall carbon nanotubes, that have been intensively explored since its discovery in 1991, are considered promising in many applications due to its unique structure and because it can be easily modified in order to tuning their physical and chemical properties. But the interest in using gold as the catalytic material appeared only in 1985, when was discovered…

classification seemed useful, more than one was given. Please note that the classifications represented here may not be those preferred by all specialists in a particular field. U•X•L ENCYCLOPEDIA OF BIOMES [ix] READER’S GUIDE Every effort was made in this set to include the most accurate information pertaining to sizes and other measurements. Great variations exist in the available data, however. Sometimes differences can be accounted for in terms of what was measured: the…

aspects of the history which were most significant (up to that time) to the development of the subject. The predominant practitioners of the art were those associated with the military, the diplomatic service and government in general. Cryptography was used as a tool to protect national secrets and strategies. The proliferation of computers and communications systems in the 1960s brought with it a demand from the private sector for means to protect information in digital form and to…

following chapters of this documentation), it helps to acquaint oneself with a bit of crucial terminology, especially the following terms: Host operating system (host OS). This is the operating system of the physical computer on which VirtualBox was installed. There are versions of VirtualBox for Windows, Mac OS X, Linux and Solaris hosts; for details, please see chapter 1.4, Supported host operating systems, page 14. Most of the time, this User Manual discusses all VirtualBox…