vahid zakari arad of sed and vasima news agency.cialists of a knowledge-based company succeeded for the first time in the largest three-section transformer of 500 megawatt ampere network produce electricity for the country. according to the announcement of the scientific vice president, this giant transformer with dimensions of 14 meters in length and 9 meters in width weighs more than 335 tons. this strategic equipment replaces three single-phase converters, which prevents 70% of network overload losses. using chicken feathers , they developed a new nano-scale drug delivery system that can reduce the side effects of chemotherapy. researchers at the francis crick institute in england made an engineered nano-sized molecular cage with the help of amino acids found in chicken skin tissue, which can be used to encapsulate their drugs. directly to the cancerous masses. by using this method, the side effects of chemotherapy are reduced. and healthy cells are preserved. previously, the construction of such cages was possible only with hydr