• Title/Summary/Keyword: sin

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The First Korean Rocket Dae-Sin-Gi-Jeon : Study of Propellant Case(Yak-Tong) (조선시대 로켓인 대신기전 복원 : 약통에 대한 기초연구)

  • Lee, Yong-Wu;Kim, Min-Jae;Wang, Seung-Won;Kim, Jai-Ho;Huh, Hwan-Il
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2008.11a
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    • pp.211-214
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    • 2008
  • Many types of new Korean Firearms were developed during the reign of King Se Jong(1418$\sim$1450). After the Chong-Tong-Deung-Rok(1448), The Ju-hwa was renamed as the Sin-Gi-Jeon. There was four kinds of rocket propelled arrows : So(small), Chung(medium), Dae(large) and San-hwa(multiple bomblets)-Sin-Gi-Jeon. Dae-Sin-Gi-Jeon known to be the best and biggest of any rocket propelled arrows in the 15th century. This paper describes Yak-Tong(propellant case made by paper) of Dae-Sin-Gi-Jeon.

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Properties of a Surface Curvature in Toric Lens (토릭렌즈의 표면 곡률 특성 연구)

  • Park, Sang-An;Kim, Yong-Geun
    • Journal of Korean Ophthalmic Optics Society
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    • v.6 no.2
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    • pp.65-70
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    • 2001
  • We obtained the sum of two curvature ($C_x+C_y$) in toric lens which two toroidal surface is the right angle each other. $$C_x+C_y=\frac{x^2+y^2}{2r_1}+\frac{x^2}{2}(\frac{1}{r_2}-\frac{1}{r_1})$$ and the sum of two curvature ($C_a+C_b$) in toric lens about the cross angle. $$(C_a+C_b)=\frac{x^2cos^2{\alpha}_1}{2r_1}+\frac{x^2cos^2{\alpha}_2}{2r_2}+\frac{y^2sin^2{\alpha}_1}{2r_1}+\frac{y^2sin^2{\alpha}_2}{2r_2}$$ and claculated the parameter S, C, ${\theta}$ of a combination power in toric lens of the cross angle including surface curvature ($C_x$, $C_y$) values. $$S=(n-1)\[\frac{C_x}{x^2}+\frac{C_y}{y^2}\]-\frac{C}{2},\;C=-\frac{2(n-1)}{sin2{\theta}}\[\frac{C_x}{x^2}+\frac{C_y}{y^2}\]$$ $${\theta}=\frac{1}{2}tan^{-1}\[-\frac{{C_xy^2sin2{\theta}_1}+{C_yx^2sin2{\theta}_2}}{{C_xy^2cos2{\theta}_1}+{C_yx^2cos2{\theta}_2}}\]$$.

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Study on the Shapes of Jung-kwa, Gi-kwa, Sin-kwa, Hyul-kwa (정기신혈과(精氣神血科)의 형상(形象)에 대한 연구)

  • Choi Byung-Tae;Choi Yung-Hyun;Baek Geun-Gi;Lee Yong-Tae
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.5
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    • pp.1181-1190
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    • 2005
  • After study about the shapes of Jung, Gi, Sin, Hyul-kwa advocated by Master Jisan, the conclusions are drawn as follows. It pursues the rules of universe being changed from formless to concrete objects that the Body Essence, Vital energy, Mentality, and Blood are materialized to Jung, GE, Sin, Hyul-kwa. It can be drawn an inference from the next three theories that Jisan considered Jung, Gi, Sin, Hyul-kwa as round, square, reverse triangle, and triangle or oval shape. First, it was taken to following the shapes of viscera. Namely Jung-kwa was taken as Kidney, Gi-kwa as Lung, Sin-kwa as Heart, Hyul-kwa as Liver. Second, it was adopted from five kinds of constitutions according to the five elements in [Yeongchu Yin and Yang twenty five shapes] that is Jung-kwa is purchased with Water-earth phases, Gi-kwa with metal phase Sin-kwa with fire phase, Hyul-kwa with Wood phase, Third, it is taken in order to eliminate contradictions. Hyul-kwa disliking to move is assumed to round shape to easily move. Gi-kwa tending to disperse is chosen to square in order to be unmoved. Sin-kwa declining to stagnate of seven emotions is pursued to reverse triangle to compose oneself. Hyul-kwa inclining to gather is preferred to acreage phase to harmonize ascending tendency. Among shapes which Jisan was divided Hado, Nakseo, Bokhee pal kwoe, Moonwang pal kwoe, Jung-kwa as round is Hado, Gi-kwa as square is Nakseo, Sin-kwa as reverse triangle is Bokhee pal kwoe order shape, Hyul-kwa as acreage phase or oval shape is accord with Moonwang pal kwoe order shape. The reason being classified into Jung, GE, Sin, Hyul-kwa from the shapes of the face is that the face is the place to reflect the whole conditions of the body connected with all of the viscera and meridian system such as semen of plants. Above contents are drawn an inference from the transcription of Jisan's lectures and his writings. And it is considered that insufficient parts of the Jisan's theory must be demonstrated continuously.

A Clinical Experience of Bilateral Facial Palsy accompanied by Contralateral Otitis Media under Treatment for Bell's palsy (벨마비 치료 중 건측에 중이염이 동반된 양측성 안면마비 치험 1례)

  • Gang, Bung-Su;Kim, Hae-Hwa;Lim, Gyung-Mim;Choi, Jung-Hwa;Park, Su-Yeun;Jung, Min-Young;Kim, Jong-Han
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.29 no.4
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    • pp.218-231
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    • 2016
  • Objectives : To report the patient bilateral facial palsy, because it is unusual. Methods : One patient with bilateral facial palsy was selected. Herbal medicine(Cheunggansoyosan, bubidongyeom-2) was administered and acupuncture was applied for twice a day in 73 days. Facial function was evaluated by House-Brackmann scale, Yanagihara's scale and Standardization of muscular paralysis. Results : Cheunggansoyosan, bubidongyeom-2 and acupuncture treatment improved facial function after 73 days of treatment. Adverse effects were not reported. Conclusions : This study shows that the Korean medicine treatment was effective in improving bilateral facial palsy.

Mitogen-Activated Protein Kinases (MAPKs) Mediate SIN-1/ Glucose Deprivation-Induced Death in Rat Primary Astrocytes

  • Yoo Byoung-Kwon;Choi Ji-Woong;Choi Min-Sik;Ryu Mi-Kyoung;Park Gyu-Hwan;Jeon Mi-Jin;Ko Kwang-Ho
    • Archives of Pharmacal Research
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    • v.28 no.8
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    • pp.942-947
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    • 2005
  • Peroxynitrite is a potent neurotoxic molecule produced from a reaction between NO and super-oxide and induces NO-mediated inflammation under neuropathological conditions. Previously, we reported that glucose deprivation induced ATP depletion and cell death in immunostimulated astrocytes, which was mainly due to peroxynitrite. In this study, the role of MAPKs (ERK1/2, p38MAPK, and JNK/SAPK) signal pathway in the SIN-1/glucose deprivation-induced death of astrocytes was examined. A combined treatment with glucose deprivation and $50 {\mu}M$ SIN-1, an endogenous peroxynitrite generator, rapidly and markedly increased the death in rat primary astrocytes. Also, SIN-1/glucose deprivation resulted in the activation of MAPKs, which was significantly blocked by the treatment with $20{\mu}M$ MAPKs inhibitors (ERK1/2, PD98059; p38MAPK, SB203580; JNK/SAPK, SP600125). Interestingly, SIN-1/glucose deprivation caused the loss of intracellular ATP level, which was significantly reversed by MAPKs inhibitors. These results suggest that the activation of MAPKs plays an important role in SIN-1/glucose deprivation-induced cell death by regulating the intracellular ATP level.

Structure and Actual Cognition of Korean 'Sin-Pa' Play - Focusing on and (신파극의 구조와 현실 인식 - <사랑에 속고 돈에 울고>와 <장한몽>을 중심으로 -)

  • Ryu, Kyeong-Ho
    • (The) Research of the performance art and culture
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    • no.18
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    • pp.315-346
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    • 2009
  • Korean 'Sin-Pa' play is a way to examine self-reliance of Korean culture and influence of Japanese culture on the Korean one in the early modern times. Although the 'Sin-Pa' play has been estimated negatively in many aspects, such an estimation can be different depending on the methodology. Therefore, I tried to explain a characteristics of the rise of 'Sin-Pa' play. While making these trials, I made efforts to reappreciate the developing process of Korean 'Sin-Pa' play and its theatrical structure and value. Particularly, I focused on structure of 'Sin-Pa' play in the context of an actual cognition of colonized Korea. Based on the 'Sin-Pa' play's repertoires I found out that one of the representative characteristics of Korean 'Sin-Pa' play is a changing process from orality to literacy. And I made attempts to uncover some ideological functions and their effects of 'Sin-Pa' play, focusing on and whose story line is usually consisted of 'provocation-pangs-defeat' while it interacted with 'provocation-pangs-penalty' of the structure of melodrama under the contemporary cultural conditions. 'Sin-Pa'' play can be considered as a performance mode to accept the Japanese value embedded in the colonized Korea since the 1910s on the one hand and to resist the overwhelming power of western culture imported through Japan on the other hand. In other words, it was closely related with the cultural-field of that period. Based on these results of this research, I tried to outline what the mode of 'Sin-Pa' was, what it reflected, and what it desired for under the influence of the contemporary cultural conditions. I analysed double qualities of 'Sin-Pa' play as a dominant narrative and/or a resistant narrative considering its relationship with the people of colonized Korea. And also I examined the place of the 'Sin-Pa' play in the history of theatre and in the history of culture.