The life-saving.

 The life-saving, or circuit breaker is a protective device having the task of protecting the plant from direct and indirect contacts. Direct contact occurs when you touch parts of a generic system that are normally in tension, such as contact with a terminal non-isolated contact with a conductor, etc., is indirect contact occurs when you are in contact with parts of system that are not normally live, but which may be a potential non-zero due to a failure or breakdown of insulation of electrical equipment, such as the casing of an engine or an electrical appliance. Consider the operation of the differential, referring to fig1.
In it there is a toroidal magnetic core on which they are allocated two windings (coils) connected in series with the line conductors and the coil differential acting on the steering control, without ground fault, which in normal operation, coils are struck by the same current, the flow produced by the latter turns out to be balanced consenguenza will have no magnetic effect and the relay will not intervene. In the presence of a dispersion and then a ground fault is the flow of the two windings unbalanced (the sum is not zero) and the resulting magnetic flux activates the tripping relay. The main characteristics of the 'circuit breaker are: rated voltage (Vn), the rated current (In), the rated residual current of intervention (IDN). Idn values are:

ENERGY STORAGE

The real photovoltaic or other (wind, etc) and CLASSIC use only non-family independent of other conventional energy sources should also include the "Fund storing energy in order to take advantage of the energy produced by the sun even when it fails.
A system of this kind, as written, is absolutely prohibitive in contemporary because of the high costs.
For this reason we will always be dependent on suppliers of electricity even if it has a photovoltaic or wind power, etc., without storage, with regard to the "DARE" and "have".
Give and take means that, if a regular system of alternative energy is not the classic after a long series of checks and overcontrol of every kind (Put on red tape and the various laws and regulations municipal, provincial, regional and state) is also quite expensive to money and time, you could get there (they say .....) well to earn by selling the energy produced in excess of the providers themselves and with a very attractive price per KW (They always say them).
Many entrepreneurs fall into the small size also proposed rewarding undertakings made by the same suppliers and installers of electrical energy using capital also conspicuously perhaps with bank loans very positive for banks.
In my opinion though I do not think that these small entrepreneurs see really small or large profitable gains that can absorb the substantial cost without including interest, expenses and unforeseen damage or other insurance premiums of the complex. Large suppliers instead funded directly by the state, can afford any initiative of their sizes and with a lot less time and witnessed the first entrance, this, yes, really profitable.
Basically, in the end, even the small business non-classical alternative energy, you will always get the bill to pay little or no different from those of the past .-
We hope only that in the short or long term, the State takes very seriously the development of alternative energy, eliminating all the mechanisms of any kind which prevent the development of independent and autonomous mass which can only occur by creating industries competing with each other to decrease very substantial costs.
E 'and above to be taken into account in the "mind" that from January 2011, the various "rates of reimbursement or payment of the energy account by the GSE - Electrical Services Manager', always' s ENEL, the Italian state - through its relevant Ministries, will change these real attractive "prices." In practice, the Italian state will maintain the current rates or change in a negative way? It 's a question that weighs heavily on investment ....
The current situation of incentive systems in Italy is about 37,700 corresponding to a calculated power of 500 MW and will provide certainty with numerous other large power plants. The evolution is very positive and encouraging.
It is rather encouraging for the investigator or the professional craftsman poor that certainly can not compete with midsize and large companies.
Another important fact to note is that the various manufacturers and wholesale dealers of equipment for alternative energy (solar, wind, etc), apply their listings on the face potential "Peak to Peak" and not that of the actual yield real power generated in WAT. Like saying that a car makes 100 hp while in practice makes the half. The fact, for me, is absolutely not "digest".
With the real evolution in progress, let us hope that the performance of photovoltaic panels can be increased to 40 percent and perhaps even more, and the actual cost of a WAT reaches the quota of 0.25 cents. It might be feasible if we continue with the action taken.
Finally, please note that the processing of photovoltaic panels has been done on the site, link STUDIES / Lesson 1 .-

Optimizing computer, computer optimization, acceleration pc, program to optimize computer

 FREE DOWNLOAD
Do you regularly use your computer or laptop to run a well-defined task, to search for information. Do not forget, please, that the PC memory is not unlimited and unnecessary files affect the system work. By the time you might notice that your computer no longer work as before the operation speed decreases, the system errors and failures occur. Where's the problem? How can we improve the performance of your computer or laptop? To speed up your PC and optimize your computer and disk cleanup is necessary to continuously monitor the information does not take up unnecessary space on your hard disk and not slow down the operation of the system.
Obviously it is very convenient store several files and folders on your hard disk, since they are always at hand. Just click the mouse on the file name that pops up and you have all the necessary information before their eyes. But if you do not use these files every day, it would be best to keep the removable disks. This solution is much better for the computer and for you First, the information will not take up too much space on your hard drive, then make your computer faster. Secondly, this information is protected in case of loss of data during computer malfunction.
The next important part is the register. The register collects a wealth of information, not to be used later and negatively affect the functioning of the system. The log is saved all traces of the work, often there are duplicates. Use the software for registry cleaning. Do it as his rule - the weekly cleaning of the register by useless information. This is an important suggestion of ' computer optimization and acceleration pc.
You or your children love the Internet for download free music or games. You know that is an implied threat? There is the chance to download from the Internet, along with free music and games, malicious programs or viruses that occupy the working memory of your computer or laptop. This is also one of the reasons for system malfunction and loss of important data. What can you suggest in this case? We recommend that you install the program 's computer optimization and acceleration pc, which scanerizza entire system from spyware and remove all dangerous files that sticks in the memory of the computer.
The other important aspect of the ' optimize your computer and clean the registry is to scan and search for duplicate files, which are contained in different folders and are not always visible. She lights up the program to get the list of duplicates. You can look at this list and decide whether or not to delete these files. You can also rely on the program, which automatically removes duplicates that are not needed.
It is clear that to speed up your computer the best solution is a specialized program, which scanerizza the system and eliminate all unnecessary information. This program becomes his best help at work, and is designed for operating systems like Windows XP, Windows Vista, Windows 7.

Laptop data recovery

 FREE DOWNLOAD
We must remember that the success of the hard drive data recovery depends on the degree of damage to the hard drive. You can recover lost data if the hard disk is not damaged completely.
In case you have unfortunately deleted some files on the computer working on his farm, to avoid disappointment with the direction, you can download a free program for data recovery and recover the data yourself. Have no fear of failure as to help users have created a detailed manual with detailed examples. The program works for the Windows operating system, Windows XP, Vista, Windows 7. This tool for data recovery is good for the personal computer, both for the laptop.
It is useful to have this program at home, for example because your children may accidentally delete the photos that have value for you or your music collection, which she was collecting for a long time. Or your family forgot to turn off the computer, or use unsafe technology has led to a fault. The problems of data recovery lost resolve more quickly with the use of the program of data recovery laptop.
Please remember that any time you should make backup copies of files, store them on your hard drive or on removable disks, follow the rules of the safe use of the system. If the system stops working, if the laptop were to get the virus, if the hard drive had failed, in these cases is appropriate to use the program for data recovery and data recovery laptop.

The laboratory hybrid hemodynamics: a revolution in cardiac care

What happens when, during an interventional procedure, you need to suddenly change method? This is a potential problem related to the increasing sophistication of transcatheter procedures. The hybrid operating room, integration of the Cath Lab and the operating room significantly reduces the risks associated with an emergency situation, allowing instant switching, for example, by a percutaneous procedure to a surgical procedure. "It's pretty clear that interventional procedures are becoming less invasive and imaging is becoming increasingly important during surgery," said Dr. Darren Walters, director of the Department of Cardiology at the Prince Charles Hospital. "All types of endovascular procedures require, in effect, a hybrid environment. "Dr. Walters believes that the advent of these environments has paved the way for the development of percutaneous valve replacement, and that this is a step forward after interventional cardiology coronary stenting. This is an important component of the revolution of the treatment of heart disease.
These techniques, for example, are leading the way in Australia, the replacement heart valve in elderly patients who were at high risk of surgical procedure in case of replacement, open chest. The data show that the first trial with percutaneous intervention, patients have shorter hospital stays and mortality rates significantly lower. 

Dose reduction in valve replacement procedures

Access for percutaneous heart valve replacement, in most cases is through the artery femorale.In some patients, in which the blood vessel is too small to access, can be done only through ' subclavian artery or by transapical.
The second approach requires an incision of about five centimeters on the side of the chest, in this case it is necessary to intervene in a hybrid operating room because if done in a standard environment is necessary to use a mobile X-ray to guide the catheter. For this type of intervention, the system Artis zee ^® is able to make measurements with significant dose reduction, and is able to reduce the dose in other ways.
The C-arm of Artis zee can detect images up to 290 ° rotation around the patient's body, with the software syngo ^® DynaCT is able to reconstruct three-dimensional images by reducing the radiation dose significantly. This can be done while the patient is on the operating table, with no need 'to travel between image acquisition and installation of the valve. 

Outstanding features Siemens

Dr. Walters notes that Siemens is one of the few suppliers of advanced technology for these needs (only two), and was chosen as a supplier for a number of reasons, was not only includes the cost of the package, but also ' high level of quality, reliability, proven experience, and, equally important, product support ensures that Siemens. Another important aspect in the planning phase was to realize that the equipment supplied is fit for the purposes of future hybrid operating room. At the Prince Charles Hospital has been appreciated the flexibility of the solution because the room is also used for cardiac surgery procedures, vascular and cardiology.