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The Physics Institute of the State Academy of Sciences has made successes in the research work for optimizing the operation of the oxygen heat blast furnaces of the Hwanghae Iron and Steel Complex. The researchers developed and introduced a system for comprehensively grasping the state of the furnaces and setting the needed amount of fuel and charges, thus saving a large amount of anthracite every day and reducing the sulphur content greatly so as to improve the quality and productivity of molten iron. Researchers at the institute are putting spurs to improving the practicality of the system and introducing it on a wide scale. The Pyongyang Times, launched on May 6, 1965, is the DPRK's only English newspaper. It gives latest, detailed information about what is going on in the country in politics, the economy, culture and other sectors. And the paper also provides a vast knowledge of the nooks and crannies of Pyongyang.