• (The) Research of the performance art and culture
• /
• no.32
• /
• pp.427-463
• /
• 2016

This article deals with five main theories about the origin of Yeonwahdae(蓮花臺), a Korean court dance(jeongjae; 呈才) and its transmission process through the age from Chinese Dang(唐) and Song(宋) to Goryo(高麗) and Joseon(朝鮮) in Korea. As a result, it was found that there was a significant difference between Chinese Chaj-u(?枝舞) dance and Korean Yeonwahdae, and furthermore there was an enormous change as it came to Joseon period in the number of performer, costume and music. Therefore, it is seriously necessary to select, restore the main version of Yeonwahdae in each period, and to make an effort to create new version of Yeonwahdae that reflects the spirit and taste of our time. Besides, it is important to inherit the inner spirit of Yeonwahdae as well as its outer appearance. Shortly, the main purpose of Yeonwahdae performance at present should be to reflect the most important, urgent issues of our time thereby to pray the welfare and prosperity of our country.

• Korean Journal of Heritage: History & Science
• /
• v.42 no.3
• /
• pp.132-153
• /
• 2009

A lotus flower pattern of the shape of straight and pointed petals has the forms whose lotus flowers are pointed, and is one of the representative forms of lotus flower pattern of Baekjae along with a round and a triangle protruded style. This style of lotus flower pattern was applied to roof-end tiles, halos of Buddhist images, containers of Buddha's bones, head supports, etc. from the Hanseong period to the Sabi period of Baekjae. However most of lotus flower patterns that remain today were used for the tiles of the Sabi period. Many of them were produced under the influence of the Northern Dynasties and the Southern Dynasties of China, and of Goryeo, which implies the active cultural exchange of Baekjae at that time. Among the present lotus flower patterns of the shape of the straight and pointed petals, that of the earliest time is from Gyeongdang district of Poongnab mud castle and belongs to the mid-fifth century. However there is a higher chance that the gradual subsequent excavation and research will find some tiles of the earlier period and other styles can also be unearthed.

• Economic and Environmental Geology
• /
• v.2 no.1
• /
• pp.82-90
• /
• 1969

• The Journal of the Petrological Society of Korea
• /
• v.14 no.3 s.41
• /
• pp.141-148
• /
• 2005

Lead isotopic compositions are analyzed from the sulfide minerals of the Yeonhwa, Janggun and Uljin deposits and from host limestone, intrusives, and basement rocks to reveal the source of Pb in these deposits. In the $^{206}Pb/^{204}Pb$ vs $^{207}Pb/^{204}Pb$ plot, Galenas from the Yeonhwa mine display relatively well defined positive linear array, similar to the Precambrian basement rocks of the Korean peninsula. A galena sample from the Uljin mine, Janggun limestone and the basement rocks also follow the variation of Yeonhwa mine. However, ore minerals from the Janggun mine, having relatively low $^{206}Pb/^{204}Pb$ values, reveal offset from such trend toward lower $^{207}Pb/^{204}Pb$ values. Considering the fact that Mesozoic igneous rocks and ores within the Gyeongsang basin display considerably lower $^{207}Pb/^{204}Pb$ values than basement rocks of the Korean peninsula, the deviation of Janggun ore minerals can be interpreted as to reflect mixing between leads from old continental crustal materials and from Mesozoic igneous rocks with more mantle signature. The lead of the Yeonhwa and Uljin mine, following trend of Precambrian basement rather well, seems to have been originated mostly from such basement. However, regarding that they occupy low $^{207}Pb/^{204}Pb$ side of the variation trend of the basement, the possibility of having some leads derived from the Mesozoic igneous rocks cannot be excluded.

• (The) Research of the performance art and culture
• /
• no.39
• /
• pp.863-901
• /
• 2019

This paper deals with the process of developing a traditional culture content based on the historical spread of Jajimu, an ethnic dance of ancient Tashkent(Chach), to Tang China and then to Goryeo in Korean peninsula. Jajimu as a solo dance form was a very enegetic dance form that reflects the dynamic nature of namadic life, and it enjoyed high popularity in Tang China due to its exotic style after the 8th century A.D. Later, it gave a birth to a derivative duet dance form called Ssangjaji or Guljaji, an highly sophisticated elegant court dance item that reflects the aesthetic taste of Tang China. Further, the Ssangjaji was flowed into Georyeo around in the 11th century or earlier, and was transformed into a Korean court dance while renaming it as Yeonhwadae that means 'lotus pedestal'. I tried the production of a special performance which displys those three dance forms on same stage to demonstrate the historical connection of ancient Asian dance. It was not easy to restore the music, dance and costume of Jajimu and Ssangjaji because of limited historical materials whereas those of Korean Yeonhwadae have been well preserved and transmitted owing to old dance and music notation system. A large amount of audio, visual materials were collected and analysed to overcome those limits, and its result was utilized efficiently for the production. The final performance was the culmination of long preparation process for 11 months in 2015. In spite of some limits, this project has a historical meaning in the point that it was the first trial of same kind in the world.

• Journal of the Korean Geotechnical Society
• /
• v.24 no.1
• /
• pp.61-70
• /
• 2008

The control and prediction of surface settlement, gradient and ground displacement are the main factors in shallow tunnel design and construction in urban area. For deformation analysis of shallow tunnel due to excavation it is important to identify possible deformation mechanism of shear bands developing from tunnel shoulder to the ground surface. This paper investigaties quantitatively the deformation behavior of shallow tunneling by model tunnel test and strain softening analysis Incorporating the reduction of shear stiffness and strength parameters. The comparison of model tunnel test result and numerical simulation using strain softening analysis showed good agreement in crown settlement, normalized subsidence settlement and developing shear bands above tunnel shoulder. In this study, it is blown that the strain softening modeling is applicable to the nonlinear deformation analysis of shallow tunnel.

• The Journal of the Korea Contents Association
• /
• v.22 no.5
• /
• pp.261-275
• /
• 2022

In this stage when K-Pop and K-Fashion have been drawing global attention, it is required to activate the Korean culture and fashion by developing fashion products which reinterpret various items in the Hanbok fields with modern sense in connection with Korean wave. Thus, this study aims to develop fashion products related to Korean wave with court dance costumes used in court banquets, which may be the origin of K-Pop, as the main theme, and to converge and expand culture and fashion fields. To this end, the original court dance costumes and their modern forms continuing in these days were analyzed and the costumes for Musanhyang, Yeonhwadae, Cheoyongmu, Chundaeokchok and Chunaengjeon differentiated from existing daily Hanbok were selected. The fashion products related to Korean wave reflecting the specific elements of those five costumes were designed. Then, the silhouette and sizes of those costumes were checked using the CLO, the 3D virtual clothing program and total 5 fashion products were created. In conclusion, the results of this paper will contribute on making Korean design popular on the design aspects, expanding the scope of Korean wave contents on the industrial aspects and globalizing the K-Fashion on the global aspects.

• Proceedings of the Korean Society of Food and Cookery Science Conference
• /
• 1986.08a
• /
• pp.89-94
• /
• 1986

1. 밀가루 반죽 내에서 유지류는 gluten의 수화를 감소시키고 따라서 glu1en의 망상 구조형성을 방해함으로써 연화작용을 하게 된다. 이 결과 pastry와 biscuit, cracker 류의 crispness를 증가시키고, shortened cake에 tenderness를 부여한다.2. 유지류의 shortening power는 가소성이 커서 밀가루에 잘 분산될수록, 유지의 사용량이 많을수록, 반죽 정도가 적당할 대, 반죽을 섞는 과정에서 액체 성분 첨가 후의 젓는 정도가 적을수록 커진다. 3. Yeast-raised baked food에서 shortening등 유지류의 역할은 빵의 용적, 탄성 및 기계적 내성을 증가시키고 노화를 지연시키며 질감을 좋게한다. 이러한 shortening의 기능은 밀가루 자체의 지방질과도 밀접한 상관 관계가 있다.

• Korean Chemical Engineering Research
• /
• v.57 no.5
• /
• pp.672-678
• /
• 2019

The electrochemical properties of pitch-coated natural graphite(NG) were investigated as an anode for lithium-ion batteries. The anode materials were prepared by heat-treatment of mixture of NG and petroleum pitch at $1000^{\circ}C$. The pitches with various softening points were used as carbon precursor. The physical properties of anode materials were analyzed by TGA, SEM, PSA and BET. As the softening point increased, the thickness of the coating layer increased and the specific surface area decreased. The electrochemical performances were investigated by initial charge/discharge efficiency, cycle stability, cyclic voltammetry, rate performance and electrochemical impedance spectroscopy. The carbon-coated NG using pitch with softening points of $250^{\circ}C$ showed an initial discharge capacity of 361 mAh/g and a coulombic efficiency of 92.6%. Also, the rate performance(5 C/0.2 C) was 1.6 times higher than that of NG, and it had a capacity retention (90%) after 50 cycles at 0.5 C.

• Economic and Environmental Geology
• /
• v.20 no.4
• /
• pp.273-288
• /
• 1987

연화(蓮花) 연(鉛) 아연광산(亞鉛鑛山)은 광체(鑛體)의 분포(分布)에 따라 본산지구(本山地區), 동점지구(銅店地區) 및 태백지구(太白地區)로 구분할 수 있다. 태백지구(太白地區)에 대한 본격적인 탐광(探鑛)이 시작되기 전인 1981년 당시, 약 25년 동안 채광작업(採鑛作業)이 진행되어 온 본산지역(本山地域)은 주종광체(主宗鑛體)인 월암(月岩) 및 남산광체(南山鑛體)가 -600m level에서 하한(下限)이 드러남에 따라 광량(鑛量)이 크게 소진(消盡)된 상태였으며, 동점지성(銅店地城)은 상하(上下)의 광황변화(鑛況變化)는 크지 않으나 광체(鑛體)의 규모(規模)가 비교적 작아, 조업(操業)의 안정(安定)을 위해서는 신광화대(新鑛化帶)의 개발(開發)이 시급(時急)한 과제(課題)로 대두되었다. 이에 따라 평천(平川), 태백(太白), 동점역(銅店驛), 방터골, 삼방산광화대(三芳山鑛化帶) 등 연화(蓮花) 전역(全域)에 걸쳐 모암(母岩)의 분포(分布), 지질구조(地質構造), 광징(鑛徵) 등을 검토한 결과 탐광대상(探鑛對象)에서 제외되어 왔던 태백지구(太白地區)가 다음과 같은 점에서 유망(有望)한 탐사후보지(探査候補地)로 부각되었다. 첫째, 지표(地表)에서는 풍촌석회암층(豊村石灰岩層)이 분포(分布)되지 않으나 지질구조(地質構造)를 검토한 결과 -300m level 하부(下部)에서는 이의 전층(全層)이 분포(分布)할 것으로 예상되며, 둘째, 두무동층(斗務洞層) 및 동점규암층내(銅店珪岩層內)에서 발견된 광징(鑛徵)들이 하부(下部)의 풍촌석회암내(豊村石灰岩內)로 연장(延長)되면 부광부(富鑛部)를 이룰 것으로 기대되고, 셋째, 지층(地層)의 경사(傾斜)가 $50^{\circ}$ 이상(以上)인 점, 석영반암(石英斑岩)이 분포(分布)하는 점 등은 광상배태(鑛床胚胎)에 양호(良好)한 조건(條件)이고, 넷째, 본산지구(本山地區)의 월곡(月谷), 월암(月岩), 남산(南山)등 주종광화대(主宗鑛化帶)의 연장부(延長部)인 점, 다섯째, 중앙견갱(中央堅坑)으로부터 약 2km 거리로 탐사단계(探査段階)에 별도의 신규투자(新規投資) 없이 굴진(掘進)이 가능하다는 개발조건상(開發條件上)의 이점(利點)이 있었다. 이에 따라 태백지구(太白地區)에 대한 지표정사(地表精査), 물리탐사(物理探査) 및 지화탐(地化探)을 실시하고, 20여년간 축적된 연화광산(蓮花鑛山)의 지질(地質), 광상자료(鑛床資料)를 정리(整理), 그 특성(特性)을 태백지구(太白地區) 탐사(探査)의 가설(假說)로 적용하여 시추계획(試錐計劃)을 수립, 1982년 구조시추(構造試錐)를 실시한 결과 지질구조(地質構造), 풍촌석회암층(豊村石灰岩層)의 분포(分布) 등이 거의 예상했던 대로 밝혀졌으며 태백(太白) 1호광체(號鑛體)의 일단(一端)이 확인되기에 이르렀다. 1983년(年) 7월(月) 본산지구(本山地區) -600m level에서 태백(太白) 크로스 탐광굴진(探鑛掘進)이 착수되었으며, 1985년에 마침내 갱내(坑內)에서 태백(太白) 1호(號), 2호(號) 광체(鑛體)가 착광(着鑛)되었다. -600m level에서의 태백(太白) 1호광체(號鑛體)의 규모(規模)는 연장(延長) 300m, 평균맥폭(平均脈幅) 8.5m이며, 품위(品位)는 Pb 4.5%, Zn 4.5%, Ag 109g/t이다. 태백광화대(太白鑛化帶)의 지질학적(地質學的) 예상광량(豫想鑛量)은 1,000만(萬)t 이상(以上)이 될 것으로 추정(推定)되며, 현재 -480m level에서 -720m level에 이르기까지 5개 level에서 가행(稼行)되고 있다. 현재 level에서 태백(太白) 1호(號) 광체(鑛體)는 풍촌석회암층(豊村石灰岩層) 및 화절층(花折層)을 모암(母岩)으로 하여 맥상광상(脈狀鑛床)으로 생산(生産)되며, 맥석광물(脈石鑛物)은 능망간석, Mn-방해석(方解石), 방해석(方解石), 석영(石英) 등이고 광석광물(鑛石鑛物)은 섬아연석(閃亞鉛石), 방연석(方鉛石), 황철석(黃鐵石), 자유철석(磁硫鐵石), 유비광석(硫砒鑛石), 황동석(黃銅石), 사면동석(四面銅石), 엘렉트럼 등이다. 태백지구(太自地區)는 광상(鑛床)의 산출상태(産出狀態) 및 지질(地質), 광상학적(鑛床學的) 환경(環境)이 본산지구(本山地區)와 거의 동일(同一)함이 밝혀지고 있다. 태백지구(太白地區)에서는 현재 태백(太白) 1호(號), 2호(號), 3호(號), 5호(號) 및 절골 1호(號), 2호(號) 등 6개 광화대(鑛化帶)에 대한 탐광(探鑛)이 진행되고 있다.