Line Communications
Technological Anacronismo The ANEEL (National Agency of Electric Energy) finishes prescribed a called technology PLC (Power Line Communications). The notice is printed in the national media as an absolute sensation, technological revolution. Made a mistake! We go to make a story and an analysis of this fact, we do not need, nor we must blame the ANEEL for the committed errors, the agency played its role, only that it are of the hour. Technology PLC is the use of the electric net for transmission of data, nothing more natural in the age of the knowledge and the society of the information. Technological wonder? Not, the technological anacronismo starts here that we will try to explain. The PLC is used in the world since the decade of 60, some technologies had been developed in this platform, also in Brazil has success cases here. In 1995 the CEMIG made a pioneering project with the use of electric net for transmission of data. The technology was used for applicatory with focus in the improvement of its net, the results had been great.
In 2000 the same CEMIG had the possibility to expand the technology, also with technological profits and many improvements, but the rationing and other reasons that do not come to the case had not left the project to prosper. I imagine in how many other countries expeincias of this type had not been tantadas, always esbarrando in the conservadorismo of a sector, independent of its native land. We live in a world where the speed is one of the premises of the economy and the technology. In the end of the decade of 90 the cellular telephony blew up in growth, millions of consumers entered in the market and this generated a handspike in the resources of P& D and in the proper market that reached unimaginable scales. The consequence is the infrastructure and markdown of equipment.
Beyond the characteristic above the Hibernet is ' ' code aberto' ' what it facilitates to its growth and the new increase of functionality in little time; in the case of the access transactions the Hibernet more leaves this task for another element in the infrastructure of the program; he is native for java more exists the version stops. Net (NHibernet); Map classrooms with JDK 5,0, among others. 1.3 New Characteristics (Hibernet 4,0) In its version 4.0 hibernet foca in the following objectives: simpler configurations; more flexibilities of mapping; otimizaes by means of improvements in the inicializao that currently are slow and the tools of hibernet for where all the DLL are generated automatically. 2. JavServer Faces One of the great difficulties still in the world of the development for Web applications is to have a programming tool where the desenvolvedor does not lose as much time with the part of ' ' design' ' , that is, all moment is looked to it similar tools of development to the Delphi or Visual beginner’s all-purpose symbolic instruction code.
Solar energy is the energy obtained from the Sun. The incident solar radiation on the Earth and can be leveraged, by its ability to heat, or directly, through the use of radiation in optical devices. It is a type of renewable energy, by what is known as green energy. The power of radiation varies with the time of day, weather conditions that dampen it and latitude. It can be presumed that, in good conditions of irradiation, the value is approximately 1000 W/m at the Earth’s surface. This power he known as irradiance. Radiation is usable in its direct and diffuse components, or the sum of both.