Jo Nov 13, 2022
Kamhong-ro, one of the three old famous spirits well known across the country which has developed centered in Pyongyang over a long period of time, is a valuable traditional inheritance of our nation.
Our country has a very long history of making and drinking liquor, but records of reddish sweet Kamhong-ro finally began during the feudal Joson dynasty. “Kyongdo Magazine” and “Pyongyangji” compiled in this period wrote that Pyongyang Kamhong-ro was famous. “Rimwonsipryukji” published at the beginning of the 19th century described the way of making Kwanso Kamhong-ro, according to which the bottom of the pot for dewdrops was plastered with honey and they were mixed with gromwell. It wrote that it was the best of all kinds of liquor as it was sweet and strong and it looked red like a lipstick. The term Kamhong-ro means a sweet (kam) reddish (hong) spirit (ro).
Until the 19th century, fermented liquid prepared from traditional Korean malt was distilled three times and it was mixed with gromwell and honey to make sweet red Kamhong-ro, high-quality medicinal liquor. In old times our people came to find medicinal herbs good for health and longevity in the course of conquering the nature and paving the way for their life and they actively introduced them to their life to make herbal tonics, which have still been conveyed down to the present day. Kamhong-ro, too, has been accepted as healthful medicinal drink and one of the three old famous spirits. Right amount of medicinal spirits helped our people to protect health and they were served on important days like family events or holidays.
Chairman
Today Kamhong-ro, which adds our national flavor and native savour, is served in public service facilities for people, giving our people national pride and delight.
Sin Kwang Il, researcher at the Academy of Social Sciences
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Jo Nov 10, 2022
“Computer Application in Major Field” is a subject that studies the ways of using applications for the simulation and analysis of scientific and technological calculations in the field of materials engineering and hydrodynamical processes in hydrometallurgy.
In the past, teachers had some problems with stimulating students’ thinking for developing their creativity and raising their program application abilities.
Therefore, Kim Chol Nam, a researcher at the Faculty of Metal Engineering, has introduced problem-based learning (PBL) whereby students could seek discussion points and solutions to them on their own, in order to enhance their application abilities of simulating and analyzing hydrodynamic problems arising in process operations.
First, while he was explaining the principle of the process by using a virtual reality system, he led them to discovering problems and finding solutions from FLUENT library. It was helpful for students to have a full understanding of the hydrodynamic principles of hydrometallurgy.
After they studied the hydrodynamic quantities for turbulent kinetic energy in FLUENT library, he taught them the method of determining the agitation characteristics so that they could have a technical and hydrodynamic notion of hydrometallurgy. In a word, he emphasized that the agitating condition was an important factor in the chemical reactions made in a leacher with air agitation and the quantity was turbulent kinetic energy and that it could be calculated simply in FLUENT. As a result, they became more enthusiastic in their study with confidence that they could solve any hydrodynamic problems by utilizing applications.
Second, he designed his teaching plan in a way that students could be familiar with how to simulate and analyze the process through an understanding of the process, a determination of its factors, an analysis and a determination of reasonable parameters, and raise their application ability, all by introducing PBL.
It is the basic purpose of PBL to raise the ability of application and self-study by making the discovery of questions and solving them a process of inquiry and cooperation.
With a good understanding of the chemical reaction process in the leacher with air agitation through the virtual reality system, the students raised by themselves several questions like improving the agitating condition, an important factor that affects reaction rates, that is, the relative position between the circulating pipe and the air inlet and the ratio of the diameter of the inlet and the circulating pipe to the diameter of the leacher body. While finding ways to solve them, they were able to raise their ability of application and self-study.
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Jo Nov 8, 2022
Sinji letters are the first national letters made after several stages of letter life as a result of a long time of thinking and painstaking inquiry of the ancient Korean people who created their own language Korean to use as a powerful weapon for struggle and creation in the remote past.
Sinji letters were invented by a man called Sin Ji in Ancient Korea. The word sinji meant a big man, so it usually referred to a ruler, a master or a boss. In the historical records, the word sinji is written in several Chinese characters ―神誌 (sinji), 神志(sinji), 巨智(koji), etc. ― which have no connections with the meanings of each character but are of the same sound as the native Korean word sinji. Sinji letters are also recorded as wangmun (王文), which means that they were used by rulers including kings. It reflects the social and historical characteristics of the past societies like a slave society where the ruling classes used to hog letters, and at the same time it has some connections with the meaning of the name “sinji letters”.
Historical books “Kyuwonsahwa” and “Pyongyangji” have some records associated with sinji letters. In later national classics “Haedongryoktaemyonggaphilbo” and “Nyongbyonji” are recorded sixteen of the sinji letters of Ancient Korea, which became widely known to the world. Due to the lack of the remaining data, things like the number and system of the sinji letters, sound values of each letter and norm of use have not been fully illuminated yet. However, it is clear from the form of the letters that they were phonetic and syllabic letters and they were written downwards. The fact that similar letters are engraved on several archaeological relics such as earthenware of Ancient Korea and blocks of Rangnang old tombs proves that sinji letters were widely used in Ancient Korea.
In conclusion, sinji letters convincingly demonstrate that the Korean nation is a resourceful nation that created their independent national letters as early as in ancient times and developed their own unique civilization on the basis of them.
Kim Kwang Jo, researcher at the Academy of Social Sciences
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Jo Nov 6, 2022
“Structural engineering of thermal facility” is a subject which studies theories and techniques related to the design, fabrication and structural safety of thermal power facilities.
In the past, the cognitive faculty and the level of 3D design and structural analysis of students were low due to the lack of concrete images of thermal power equipment.
Pak Un Hyok, a researcher at the Faculty of Heat Engineering, has introduced practical 3D models and applications to his subject to ensure high cognition effect and application ability whereby students could satisfactorily solve problems arising in reality.
Firstly, he has presented practical problems for their individual tasks and asked them to solve them by using application codes.
Secondly, while giving theoretical knowledge, he has taken some minutes in his lecture to explain solutions to practical problems by application codes.
With a brief introduction of the mathematical induction, he has given detailed explanations of the ways of solving problems by ABAQUS and the results so as to enhance students' cognition and application faculty.
Thirdly, for better cognition effect, he has created, collected and edited real objects and models of ordinary thermal power facilities.
All these have proved useful in increasing the teaching intensity and the creative thinking ability of students.
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Jo Nov 4, 2022
Okryugum was invented in the 1970s as an original national flick instrument by developing wagonghu, one of the old national instruments that had been passed down from ancient times. Chairman
Okryugum consists of the body made up of a resonance box and tune adjusting pedals, and the legs. The seven tune adjusting pedals attached to the legs make variations possible in any conditions. It has a total of 33 strings. It has two bridges on the resonance box; one on the front side and the other on the eight pillars at the back.
Okryugum is a C instrument which ranges from C2 to G4. There are seven pedals that are arranged in order of C, D, E, B, A, G and F from the left.
Okryugum produces clear, elegant and beautiful tones true to the meaning of its name. Its tone is so diverse that a single pluck sounds like a harp, a piano, a kayagum or a guitar. Such tones blend well to produce a silvery one. Since it fully supports a chromatic scale and vibratos like a kayagum, it is regarded as a unique and excellent national instrument with a great power of expression. It is used as a solo instrument and plays an important part in a national instrument ensemble as well as in guaranteeing the national colouring and sentiment of the mixed orchestra of a Juche type with extraordinary tones and ample volume.
Ri Yong Ho, section head at the Academy of Social Sciences
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