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EXISTENCE OF A MULTIVORTEX SOLUTION FOR ${SU(N)_g}{\times}U(1)_l$ CHERN-SIMONS MODEL IN ${R^2}/{Z^2}$

  • Yoon, Jai-Han
    • Communications of the Korean Mathematical Society
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    • v.12 no.2
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    • pp.305-309
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    • 1997
  • In this paper we prove the existence of a special type of multivortex solutions of $SU (N)_g \times U(1)_l$ Chern-Simons model. More specifically we prove existence of solutions of the self-duality equations for $(\Phi(x), j =1, \cdots, N$ has the same zeroes. In this case we find that the equation can be reduced to the single semilinear elliptic partial differential equations studied by Caffarelli and Yang.

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Development of Monopropellant Thruster for Spacecraft Propulsion System (우주추진기관용 단일추진제 추력기 연구개발)

  • Kim, Su-Kyum;Won, Su-Hee
    • 한국연소학회:학술대회논문집
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    • 2012.11a
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    • pp.295-296
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    • 2012
  • In Korea, study of monopropellant thruster have been started from 1990s by KARI (Korea Aerospace Research Institute). 5N hydrazine thruster that is a first Koreanized hydrazine thruster, have been used as flight model for several satellite. In parallel, in order to retain core technology for monopropellant thruster, catalyst and test facility development have been carried out and successfully completed. On the basis of these technology, KARI is performing development of 1N/200N hydrazine thruster and basic research of green propellant thruster.

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A Study on Gin Ga Chu Yo(診家樞要) I (진가추요(診家樞要)에 대한 연구(硏究) I)

  • Kim, Heon;Park, Kyung
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.9 no.1
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    • pp.1-22
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    • 2005
  • Background and purpose: Gin Ga Chu Yo(該家樞要) was written in the year 1359 by Hwal Su(滑壽) who was a famous oriental doctor between Won(元) and Myeong(明) dynasty. As specialized in sphygmology(脈學), this book was brought together most things about sphygmology(脈學) before Won(元) dynasty by the author. Moreover he added the self-realized things to this book. Methods: In this book, there are all 20 chapters; Chu Yo Hyeon Eon(樞要玄言), Jwa U Su Bae Jang Bu Bu Wi (左右手配臟腑部立), O Jang(五臟), Sa Si peong Maek(四時平脈), Nae Gyeong Sam Bu Maek Beop(內經三部脈法), Ho Heup Chim Bu Jeong O Jang Beop(呼吸沈浮定五臟法), In Ji Ha Gyeong Jung I Jeong O Jang Beop(因指下輕重以定五臟法), Sam Bu So Ju(三部所主), Ji Maek Su Beop(持脈手法), Maek Gwi Yu Sin(脈實有神), Maek Eum Yang Yu Seong(脈陰陽類成 ), Gyeom Hyeon Maek Ryu(兼見脈類), Je Maek Ui Gi Ryu(諸脈宜忌類), Heom Je Sa Jeung Ryu(驗諸死症類) , Sa Jeol Maek Ryu(死絶脈類), O Jang Dong Ji Maek(五藏動止脈), Bu In Maek Beop(婦人脈法), So A Maek Beop(小兒脈法), Maek Sang Tong Hoe(脈象統會), Maek Sang Ga(脈象歌) and an epilogue in the end. This treatise is made up of principal, notes, study and conclusion, we tried to make a translation faithful to the original. Results and Conclusion: Looking into this book, we can know that it is very detail in analyzing item by item, bright and simple in explaining and it is very useful in studying pulse evaluation(脈診). In his preface, Hwal Su(滑壽) expresses his opinion with firm confidence that 'Do(道) of the World scattered in several scholarships and books of method and technique(方術). Nothing of method and technique(方術 ) is more important than medicine. Nothing of medicine goes before pulse evaluation(脈診).' With such good reasons, as a student of sphygmology(脈學), I think this book is very valuable in studying pulse evaluation. So I add Hangul suffixes(吐) to a part of this book and translate it into Korean.

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A Study on Gin Ga Chu yo(診家樞要)III (진가추요(診家樞要)에 대한 연구(硏究) III)

  • Kim, Heon;Park, Kyung
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.10 no.1
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    • pp.1-35
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    • 2006
  • Background and purpose: Giu Ga Chu Yo(診家樞要) was written in the year 1359 by Hwal Su(滑壽) who was a famous oriental doctor between Won(元) and Myeong(明) dynasty. As specialized in sphygmology (脈學), this book was brought together most things about sphygmology(脈擧) before Won(元) dynasty by e author. Moreover he added the self-realized things to this book. Methods: In this book, besides a author's preface, there are all 20 chapters which are Chu Yo Hyeon Eon(權要玄言), Jwa U Su Bae Jang Bu Bu Wi(左右手配臟腑部位), O Jang(五臟), Sa Si Peong Maek(四時平脈), Nae Gyeong Sam Bu Maek Beop(內經三部脈法), Ho Heup Chim Bu Jeong O Jang Beop(呼吸沈浮定五臟法), In Ji Ha Gyeong Jung I Jeing O Jang Beop(因指下重以定五腑法), Sam Bu So Ju(三部所主), Ji Maek Su Beop(持脈手法), Maek Gwi Yu Sin(脈貴有神), Maek Eum Yang Yu Seong(脈陰陽類成), Gyeom Hyeon Maek Ryu(兼見脈類), Je Maek Ui Gi Ryu(諾脈宜忌類), Heom Je Sa Jeung Ryu(驗諸死症類), Sa Jeol Maek Ryu(死絶脈類), O Jang Dong Ji Maek(五藏動止脈), Bu In Maek Beop(婦人脈法), So A Mrek Beop(小兒脈法), Maek Sang Tong Hoe(脈象統會), Maek Sang Ga(脈象歌) and an epilogue in the end. Result and Conclusion: Looking into this book, we can know that it is very detail in analyzing item by item, bright and simple in explaining and it is very useful in studying pulse evaluation(脈診). In his preface, Hwal Su(辨壽) expresses his opinion with firm confidence that 'Do(道) of the World scattered in several scholarships and books of method and technique(術). Nothing of method and technique(力術) is more important than medicine. Nothing of medicine goes before pulse evaluation(脈診).' With such good reasons, as a student of sphygmology(脈學), I think this book is very valuable in studying pulse evaluation.' So I add Hangul suffixes(吐) to a part of this book and translate it into Korean.

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A Study on Gin Ga Chu Yo(診家樞要) II (진가추요(診家樞要)에 대한 연구(硏究) II)

  • Kim, Heon;Park, Kyung
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.9 no.2
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    • pp.25-56
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    • 2005
  • Background and purpose: Gin Ga Chu Yo(診家樞要) was written in the year 1359 by Hwal Su(滑壽) who was a famous oriental doctor between Won(元) and Myeong(明) dynasty. As specialized in sphygmology(脈學), this book was brought together most things about sphygmology(脈學) before Won(元) dynasty by the author. Moreover he added the self-realized things to this book. Methods: In this book, besides a author's preface, there are all 20 chapters which are Chu Yo Hyeon Eon(樞要玄言), Jwa U Su Bae Jang Bu Bu Wi(左右手配臟腑部位), O Jang(五臟), Sa Si peong Maek(四時平脈), Nae Gyeong Sam Bu Maek Beop(內經三部脈法), Ho Heup Chim Bu Jeong O Jang Beop(呼吸沈浮定五臟法), In Ji Ha Gyeong Jung I Jeong 0 Jang Beop(因指下輕重以定五臟法), Sam Bu So Ju(三部所主), Ji Maek Su Beop(持脈手法), Maek Gwi Yu Sin(脈貴有神), Maek Eum Yang Yu Seong(脈陰陽類成), Gyeom Hyeon Maek Ryu(兼見脈類), Je Maek Ui Gi Ryu(諸脈宜忌類), Heom Je Sa Jeung Ryu(驗諸死症類), Sa Jeol Maek Ryu(死絶脈類), O Jang Dong Ji Maek(五藏動止脈), Bu In Maek Beop(婦人脈法), So A Maek Beop(小兒脈法), Maek Sang Tong Hoe(脈象統會), Maek Sang Ga(脈象歌) and an epilogue in the end. Result and Conclusion: Looking into this book, we can know that it is very detail in analyzing item by item, bright and simple in explaining and it is very useful in studying pulse evaluation(脈診). In his preface, Hwal Su(滑壽) expresses his opinion with firm confidence that ‘Do(道) of the World scattered in several scholarships and books of method and technique(方術). Nothing of method and technique(方術) is more important than medicine. Nothing of medicine goes before pulse evaluation(脈診).’ With such good reasons, as a student of sphygmology(脈學), I think this book is very valuable in studying pulse evaluation. So I add Hangul suffixes(吐) to a part of this book and translate it into Korean.

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Ozone Sensitivity of Physiological Indicators for Stress Evaluation in Four Families of Quercus aliena Blume (갈참나무 4가계에서 스트레스 평가용 생리 지표들의 오존 민감성)

  • Kim, Du-Hyun;Han, Sim-Hee;Lee, Jae-Cheon
    • Journal of Korean Society of Forest Science
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    • v.99 no.6
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    • pp.878-884
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    • 2010
  • Ozone sensitivity of physiological indicators and the difference of ozone tolerance on 4 families of Quercus aliena seedlings were investigated on the basis of the standardized physiological indicators. Photosynthetic parameters, photosynthetic pigment and malondialdehyde (MDA) content, and antioxidative enzyme activities were measured or analyzed from the leaves of Q. aliena seedlings at the end of ozone fumigation, and ozone tolerance indices among 4 families were calculated with the standardized physiological parameters. After ozone treatment, the reduction of carboxylation efficiency was observed in the leaves of four families, and their reduction were ranged from -24.1% to -56.9% of control seedlings. Photosynthetic pigment content differed significantly among 4 families and treatments. The reduction of total chlorophyll content showed the highest in family SU4 (-40.6%) and the lowest family US2 (-18.8%). Ascorbate-peroxidase (APX) activity showed significant difference among families and treatments, and increased as compared with control in three families, except for family US2. On the basis of the physiological indices, ozone tolerance of four families was ranked in the order of US1 > SU4 > US2 > SU1. In conclusion, photosynthetic parameters, pigment content and APX activity were recommended as appropriate indicators to assess the tolerance against ozone stress of Q. aliena.

A Comparative Study on Acupuncture Using five Su points(五輸穴) - Sa-am Acupucture(舍岩鍼法), Taeguk Acupuncture(太極鍼法), 8 Constitution Acupuncture(八體質鍼法) - (오수혈(五輸穴)을 이용한 침법(鍼法)의 비교(比較) 고찰(考察) -사암침법(舍岩鍼法), 태극침법(太極鍼法), 팔체질침법(八體質鍼法) 중심(中心)으로-)

  • Jung, In-Gy;Kang, Sung-Keel;Kim, Chang-Hwan
    • Journal of Acupuncture Research
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    • v.18 no.2
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    • pp.186-199
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    • 2001
  • Objectives : Sa-am Acupucture(舍岩鍼法), Taeguk Acupucture(太極鍼法), and 8 Constitution-Acupuncture(八體質鍼法) are largely used acupuncture therapies which utilize Yin and Yang, The Five Elements, Interpromoting and Counteracting Relation(相生 相克 關係). We are here to compare and study each acupuncture methods in order to understand their fundamental principle and theory. Conclusion : 1. When prescribing Herb to patients, we can use the Differentiation of Syndromes method(辨證論治). As there is Constitutional Medicine prescription(四象醫學處方) using constitutional Large & Small Relation of Jang and Bu organs(臟腑大小 關係), in acupuncture treatment we can use the Differentiation of Syndromes method of Sa-am acupucture, applying constitutional Large & Small feature of Jang and Bu organs(臟腑大小) in Taeguk Acupucture and 8 Constitution Acupuncture we can derive a suitable prescriptions. 2. Taeguk Acupucture and 8 Constitution Acupuncture is an acupunture method created upon the constitutional theory. Taeguk Acupucture lacks a theory and has problems with its practical use. 8 Constitution-Acupuncture has a theory, thus it can give us the chance to make derived diverse prescriptions for each diseases. 3. Sa-am Acupucture uses exclusively Manual technique(手技法), breathing Posa method(呼吸補瀉法), YoungSu Posa method(迎隨補瀉法) and also retaining method(留鍼法). Taeguk Acupunctune is directed related with WonBang Posa method(圓方補瀉法), twirling method(撚鍼法) and uses retaining method. 8 Constitution-Acupuncture works only with YoungSu Posa method and also One-insertion method(單刺法). 4. If we apply The Five Elements of five Su points and Interpromoting and Counteracting Relation(相生 相克 關係), we can control discords between Jang and Bu organs. Sa-am Acupucture, Taeguk Acupture and 8 Constitution Acupuncture which use five Su points can make better results in Jang and Bu organs disease. 5. Sa-am Acupunture needs diverse applications of Organ picture theory(臟象論), Pathogenesis theory(病機學說) and an proper prescription studies by Differentiation of Syndromes(辨證). Taeguk Acupuncture and 8 Constitution Acupuncture has a organized prescription methods by constitutional Large & Small relation of Jang and Bu organs(臟腑大小), thus we need to focus on objectification in constitutional differentiation.

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Burning and The Ethical Subject (영화 <버닝>과 윤리적 주체)

  • Kwak, Han-Ju
    • Journal of Popular Narrative
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    • v.26 no.4
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    • pp.117-144
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    • 2020
  • The film Burning (Lee Chang-dong, 2018) is one of the most noted Korean films in recent years as a work that unfolds an elaborate narrative in a delicate visualization. This film is a multi-vocal text in which different types of characters appear and scattered objective facts and ambiguous subjective desires are intertwined, so it is a text that has room for diverse interpretations. This article attempts to read Burning as an ethical discourse centered on the protagonist Jong-su, noting that the film raises universal and significant ethical issues that transcend the specific social and historical conditions of a contemporary Korean youth. I would like to examine the situation in which Jong-su is facing and his reaction to it, above all, from the perspective of Jong-su's ethical awakening and leap forward. Jong-su, a young South Korean non-regular man living in the present, encounters and connects with Hae-mi and Ben and attempts to understand the mysteries of the world. His trajectory, which the film shows closely, inevitably intersects the social and historical dimension of confusion and frustration of a young man graduated from the Department of Creative Writing, the reality of family dissolution and the individual psychological dimension of the sudden disappearance of his lover Hae-mi. Burning is a magistrate film that depicts Jong-su as an ethical subject oriented toward 'communal togetherness' while confronting the world and exploring its mysteries despite all his unfavorable conditions, such as his social position of the precariat youth and the epistemological uncertainty of reality perception. It is read as a story of his painful growth, in which Jong-su is becoming a 'writer', who once was a helpless non-regular delivery worker.

A study on the architectural character of JE-DANG in Ulsan (울산지역(蔚山地域) 제당(祭堂)의 건축적(建築的) 특성(特性)에 관한 연구(硏究) - 웅재면(熊材面)과 강동면(江東面)의 제당(祭堂)을 사례(事例)로 -)

  • Kang, Hye-Kyung;Nishimura, Ichiro;Han, Sam-Geon
    • Journal of architectural history
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    • v.8 no.3 s.20
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    • pp.9-22
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    • 1999
  • The purpose of this study is to analyse the architectural character of JE-DAMG at farm village in Ulsan. JE-DANG means the building for DONG-JE (the sacrificial rite of a village). The regions of this study are KANG-DONG MYEN, and UNG-CHON MYEN in Ulsan. The method of this study is the analysis of them after the actual field surveys of 47 JE-DANGs in these regions The survey contains the area, the height, the period of the erection, the architectural structure, the roof shape, the material, the landowner, SHIN-CHE (means a god's name and shape), DANG-SU tree and so on. Methods of the survey are the field survey, the interview of villager, the analysis of reference data and so on. Results of the study are below. JE-DANGs(buildings) of these regions had been built first in the period of Japanese occupancy and erections of them had continued until 1970's. Since then, they have been rebuilt. The primary JE-DANG is characterized by a tiled roof, a wooden post lintel, a mud-plastered wall, and a wooden door. After rebuilding, characters are a flat slab, a tiled roof, a structure of using red bricks, and the area is getting larger than the primary JE-DANG, but 1 KAN persists without variety. Most of houses in the inland area like UNG-CHON MYEN face the south, and ones in the coastal area like KANG-BONG MYEN face the east. Generally there is DANG-SU tree behind JE-DANG. That proves DANG-SU tree to be the object of the rite. The species of DANG-SU is a pine in general ,but various in UNG-CHON MYEN. In general names of the god are DONG-SHIN , DANG-SAN SHIN and SUNG-HWANG SHIN. I think that the landownership of JE-DANG should change the private ownership into the village ownership to preserve JE-DANG though most of lands of JE-DANG are private ones.

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The relationship between reactive oxygen species, DNA fragmentation, and sperm parameters in human sperm using simplified sucrose vitrification with or without triple antioxidant supplementation

  • Juanpanich, Theesit;Suttirojpattana, Tayita;Parnpai, Rangsun;Vutyavanich, Teraporn
    • Clinical and Experimental Reproductive Medicine
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    • v.49 no.2
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    • pp.117-126
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    • 2022
  • Objective: This study examined whether the addition of triple antioxidants (3A)-10 µM acetyl-L-carnitine, 10 µM N-acetyl-L-cysteine, and 5 µM α-lipoic acid-in freezing-thawing medium during human sperm cryopreservation using the sucrose vitrification (SuV) and liquid nitrogen vapor (Vapor) techniques could improve post-thaw survival of spermatozoa. Methods: We analyzed 30 samples from healthy human sperm donors. Each sample was allocated into one of five groups: fresh control, SuV, SuV+3A, Vapor, and Vapor+3A. The sperm motility, morphology, viability, intracellular and extracellular reactive oxygen species (ROS) levels, and sperm DNA fragmentation (SDF) were evaluated. Results: The cryopreserved spermatozoa had significantly reduced percentages of motility (p<0.05) and viability (p<0.05). Antioxidant supplementation non-significantly improved these parameters (p>0.05). No significant differences were found in sperm morphology between the fresh and frozen-thawed groups (p>0.05). After freezing, the extracellular ROS levels in the frozen-thawed groups were significantly higher (p<0.05) than in the fresh group. However, we did not find any differences in intracellular ROS parameters among these groups (p>0.05). The SDF was higher in the SuV and Vapor groups than in the fresh group, but without statistical significance (p=0.075 and p=0.077, respectively). Conclusion: Cryopreservation had detrimental effects on sperm motility, viability, and extracellular ROS levels, without changing the morphology or intracellular ROS levels. Antioxidant supplementation was slightly effective in preventing SDF in frozen-thawed spermatozoa.