Yu Nam Chol (pictured), PhD, associate professor and researcher at Kim Chaek University of Technology, is a member of the organizing committee and Technical Committee member of the International Conference on Materials Science. He is also a member of the International Society of Chemical Engineering of the International Association of Engineers and an honorary member of the London Journal Publisher Association of the UK.
He has presented or contributed dozens of papers at international conferences and to international science journals and reviewed papers for the conferences.
He published six SCI-class papers last year and another one in January this year.
Of them two papers attract particular interest of the academic circle.
The first paper proved that nano-ceramic materials, which can be used as an ideal NTC thermistor, can be successfully prepared by a cheap sol-gel auto combustion and the second one presents numerical data with which to design an optimized multilayer NTC thermistor by way of simulation using a finite element analysing method.
“Nano-ceramic materials prepared by sol-gel auto combustion will lower the production cost by a fourth of that by the existing method and if they are annealed for 72 hours at 550℃ in N2 atmosphere, their aging will be reduced by over 0.3 percent as compared to before. And many researchers have undertaken research projects to design optimized multilayer NTC thermistors. I applied the simulation method based on finite element analyzing method which is used for designing optimal battery to the designing of multilayer NTC thermistors and confirmed correct and satisfactory numerical values,” said Yu.
The research results are expected to be of high practical value as the NTC thermistor and multilayer NTC thermistor are widely used.
More From Pyongyang Times
The Iraqi government on January 18 announced the US-led international allied forces completely withdrew from military bases in the
January 25, 2026
The Iraqi government on January 18 announced the US-led international allied forces completely withdrew from military bases in the
According to an American organization, more than 400 large-scale shooting cases occurred in the US last year, causing over 40 000
January 25, 2026
According to an American organization, more than 400 large-scale shooting cases occurred in the US last year, causing over 40 000
Fairyland villages were built in different farms in Junghwa and Singye counties of North Hwanghae Province, epitomizing the change
January 25, 2026
Fairyland villages were built in different farms in Junghwa and Singye counties of North Hwanghae Province, epitomizing the change
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
January 25, 2026
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
The Workers’ Party of Korea is organizing and conducting in a bold way the work to realign the farm fields of the country into
January 24, 2026
The Workers’ Party of Korea is organizing and conducting in a bold way the work to realign the farm fields of the country into
European countries are strongly resisting the US’ threat to impose from February 1 10 percent tariff on those countries which do n
January 24, 2026
European countries are strongly resisting the US’ threat to impose from February 1 10 percent tariff on those countries which do n
On January 23 1968, the sailors of the Korean People’s Army located an unidentified ship in the waters off Wonsan in the East
January 23, 2026
On January 23 1968, the sailors of the Korean People’s Army located an unidentified ship in the waters off Wonsan in the East
Russian presidential press secretary Dmitri Peskov mentioned about a series of international issues at the recent press
January 23, 2026
Russian presidential press secretary Dmitri Peskov mentioned about a series of international issues at the recent press
The US Senators and Representatives recently criticized the authorities' attempt to annex Greenland. Military invasion of
January 23, 2026
The US Senators and Representatives recently criticized the authorities' attempt to annex Greenland. Military invasion of
A new spectacular sight of regional development has unfolded in the Yombunjin area renowned as a scenic attraction on the east
January 23, 2026
A new spectacular sight of regional development has unfolded in the Yombunjin area renowned as a scenic attraction on the east
Several rural villages in South Phyongan Province have undergone radical changes. Modern houses were built in Soje-ri of Taedong
January 23, 2026
Several rural villages in South Phyongan Province have undergone radical changes. Modern houses were built in Soje-ri of Taedong
The respected Comrade Kim Jong Un sent a birthday spread to Ri Ok Suk, a war veteran living in Neighbourhood Unit No. 14 of
January 23, 2026
The respected Comrade Kim Jong Un sent a birthday spread to Ri Ok Suk, a war veteran living in Neighbourhood Unit No. 14 of
Working people in Kaesong have remodelled the finishing building materials factory. The completion of the factory, furnished with
January 23, 2026
Working people in Kaesong have remodelled the finishing building materials factory. The completion of the factory, furnished with
In 1925 President Kim Il Sung made the 1 000-ri (250 miles) Journey for National Liberation with a lofty aim to win back his
January 23, 2026
In 1925 President Kim Il Sung made the 1 000-ri (250 miles) Journey for National Liberation with a lofty aim to win back his
Russian President Vladimir Putin referred to the foreign policy line of his country in a diplomatic meeting on January 15. He
January 22, 2026
Russian President Vladimir Putin referred to the foreign policy line of his country in a diplomatic meeting on January 15. He
With contagious diseases breaking out one after another across the world, a flu epidemic is rapidly spreading. The World Health
January 22, 2026
With contagious diseases breaking out one after another across the world, a flu epidemic is rapidly spreading. The World Health
Mountain villages in Jagang Province are turning into a fairyland. House-moving in Puji-ri of Songgan County, Ryongmun-ri of
January 22, 2026
Mountain villages in Jagang Province are turning into a fairyland. House-moving in Puji-ri of Songgan County, Ryongmun-ri of
A new catalyst production base has been built at the Namhung Youth Chemical Complex. The catalyst production base is another
January 22, 2026
A new catalyst production base has been built at the Namhung Youth Chemical Complex. The catalyst production base is another
With the implementation of the Regional Development 20x10 Policy of the Workers’ Party of Korea, regional-industry factories are
January 22, 2026
With the implementation of the Regional Development 20x10 Policy of the Workers’ Party of Korea, regional-industry factories are
The Youth Movement Museum marked the tenth anniversary of its founding. The respected fatherly Marshal Kim Jong Un personally
January 22, 2026
The Youth Movement Museum marked the tenth anniversary of its founding. The respected fatherly Marshal Kim Jong Un personally
More Articles
