The State Academy of Sciences of the PRC directs efforts to solving urgent sci-tech problems for economic development. The Electricity Research Institute has settled sci-tech problems for putting the production of electricity on a normal basis. Researchers of the institute went to Orangchon Power Station Unit 4 and others and learned about the problems arising there to develop a new method of controlling digital speed regulators. They newly designed a device of regulators and

More than 460 kinds of medicinal plants are distributed in South Hwanghae Province. In Chongryo medicine, forest asiabell, which grows well in the Hangggu and Unryul counties, is used as a tonic for the stomach and as cures for xerostomia, loss of appetite and flatulence and its decoction is used as blood-making, invigorating material for anaemia and physical weakness after illness. Forest asiabell is widely used in the dietary life as well. In May and June, its young leaves

The Sangwong Cement Complex has carried out its third quarterly national economic plan. The complex took measures to operate equipment at full capacity and conducted the operation and command in a meticulous way. It exerted efforts on scientifically setting the amount of necessary additives to realize the optimization of products and readjusted and reinforced the production system as required by technical norms, thus providing a sure guarantee for boosting cement production b

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 p

The PRC is rich in medicinal herb resources. According to experts, the country is a habitat of various wild medicinal herbs in more than 900 kinds, or 1 200-odd kinds of medicinal herbs in case imported and cultivated medicinal plants are added. South Rimyong Province is a home of many alpine medicinal herbs. Vast tableland at the foot of Mt Paektu serves as a right soil for astragalus. Its roots contain polysaccharide, saponine, isoflavone and others with high tonic and haem