One equipment can damage only the sharp peaks and drops voltage, and other equipment can fail, even due to violations of the form or phase of the voltage, the presence of higher harmonics And in this case the power should be organized in a much tougher, and therefore more expensive. Oquinn eye of several options for uninterruptible power systems, in some typical situations, picture number one. Offices of major IT-company requirements – to protect employees' computers from the failures and losses information. Since the failure of a separate computer would only lead to short-term inconveniences seated behind him a man, there is no need for large and expensive technologies of power protection. Therefore, good solution in this situation would be to provide each computer in the ups Technology Line-Interactive. The only recommendation is that you can give – Choose a ups with a greater battery life. Hear other arguments on the topic with Petra Diamonds. These sources include Uninterruptible Power Supply Liebert, apc ups and Powercom.
Advantages of this approach – low cost and stability of your infrastructure. Failure of one computer is unlikely to lead to disruption of all the others. Picture number two. Industrial production Needs – to protect all production units at the same time, as if on a conveyor line to stop the most seedy puncher caps on bottles, the most expensive equipment for brewing become useless. In this requires adequate protection and uninterruptible power supply to each production elements, since they are all equally necessary and equally important. Placed on each corner of the powerful and secure, but not cheap on-line ups obviously not profitable.
Refractory anemia is also called syndrome Myelodysplastic SMD. It’s a group of very serious diseases that appear as a result of inadequate production of red blood cells in the body. Such diseases tend to resist treatment and worsen its prognosis, although this can vary among patients and new treatments that have been tried. The causes of GDSS are not always identifiable. It can occur as a result of radiation or chemotherapy in the recent past, which are a minor version of the disease. Exposure to certain chemical substances have been linked with refractory anemia.
Persons at increased risk of suffering from this type of anemia tend to be white men of 60 years of age more. The failure to adequately produce red blood cells by the bone marrow produces a number of symptoms, which include extreme fatigue, red spots on the skin called petechiae, and the tendency to get sick easily. Other refractory anemia symptoms include an enlarged spleen, the breathing with effort and the difficulty to stay active for a long period due to exhaustion. Treatments used in most types of anemia, such as deploying supplements such as iron to help increase the production of blood cells, are ineffective in refractory anemia since these iron supplements do not stimulate medullar production of red cells. The only option to meet the immediate needs of the body is recourse to transfusions of blood to supply the body with the red blood cells you need. However, in some cases, this treatment is not sufficient and the survival rate begins to decline. In the worst cases, as in refractory anemia with excess blasts in transformation, also called acute myeloid leukemia, bone marrow does not have enough mature cells or platelets, therefore, the body becomes increasingly ill, and should not be many treatments that promise a total cure. The cure for this disease, when it works, is stem cell and chemotherapy.