• Title/Summary/Keyword: YangHyunGo

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A Study on the reduction of surface roughness by analyzing the thickness of photocurable sculpture (광조형물의 패턴두께에 따른 표면 거칠기 저감을 위한 공정연구)

  • Kim, Young-Su;Yang, Hyoung-Chan;Kim, Go-Beom;Dang, Hyun-Woo;Doh, Yang-Hoi;Choi, Kyung-Hyun
    • Journal of Power System Engineering
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    • v.20 no.4
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    • pp.75-82
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    • 2016
  • In this paper, we developed a 3D printing system using a photo-curing resin in order to reduce the surface roughness of a sculpture produced with the 3D printer. Using the pattern of the resulting variable thickness, that gave rise to a stepped shape, and the area error of the photo-curable sculpture, a study was carried out for the process to reduce the surface roughness. At a given value of stage velocity (40~70 mm/s) and output air pneumatic pressure (20~60 kPa), the minimum pattern thickness of the pattern was achieved $65{\mu}m$ and the maximum pattern thickness of up to $175{\mu}m$. To increases the pattern resolution to about $40{\mu}m$, the process conditions should be optimized. 3D surface Nano profiler was used to find the surface roughness of the sculpture that was measured to be minimum $4.7{\mu}m$ and maximum $8.7{\mu}m$. The maximum surface roughness was reduced about $1.2{\mu}m$ for the maximum thickness of the pattern. In addition, a FDM was used to fabricate the same sculpture and its surface roughness measurements were also taken for comparison with the one fabricated using photo-curing. Same process conditions were used for both fabrication setups in order to perform the comparison efficiently. The surface roughness of the photo-curable sculpture is $5.5{\mu}m$ lower than the sculpture fabricated using FDM. A certain circuit patterns was formed on the laminated surface of the photo-curable sculpture while there was no stable pattern on the laminated surface of the FDM based sculpture the other hand.

The Study on The variational Forms of Sa-Ahm's 5 Element Acupuncture Method (사암침법(舍巖鍼法)의 변형(變形)에 관(關)한 연구(硏究))

  • Kim, Dar-Hoo;Kim, Jung-Han
    • Korean Journal of Oriental Medicine
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    • v.2 no.1
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    • pp.337-380
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    • 1996
  • 'Nei Jing(內徑)' first defined the interrelationship of the true and tile false between evil factor affecting health(雅氣) and vital essence energy(精氣). According to 「'Nei Jing(內徑)', the above interrelationship is explained as 'If state of evil domination is considered as sthenia-syndrome(雅氣盛則實), if the consumption of healthy energy Is considered as asenia-syndrome(精氣尊則虛): 'Nei Jing(內徑)', proposed major features of the medicall treatment by 'regluate the vatal energy of asthenia and sthenia, treat the sthenia-syndrome by purgation, and treat the asenia-syndrome by therapy of invigoration(調其氣之虛實, 實則瀉之, 虛則補之): The above interrelationship was interpreted as 'treat the asthenia-syndrome of child organ by invigorating the mother organ(虛者補其母)'in the 69th of 'The Classic on Difficulty',(難經 六十九難). Go-Mu(高武) of Myung-dynasty describe therapy for invigoration and purgation of itself-meridian(自經 補瀉法), which locating acupuncture points according to the Therorr of Five Element in the five shu points of itself-meridian(自經 五유穴), based on the generation in the ${\ulcorner}$A Synthetical Book of Acupuncture and Moxibustion(針灸聚英)${\lrcorner}$, Sae-hyun Jang(張世賢) further extended location acupuncture points of the five shu points to the other-meridian in the ${\ulcorner}$Gyeo Jung Do Ju Nan Gyung(校正圖註難經)${\lrcorner}$ Sa-Ahm's 5 Element Acupuncture Method(舍嚴五行鍼法) was originated in 1644, the middle of the Yi-dynasty. It linked the reinforcing and reducing in acupuncture therapy which incorporated tlle asthenia-syndrome and sthenia-syndrome of the hollow organs, based on principle of the Yin Yang 5 Element Theory(陰陽五行學說), not only to the generation in the 5 element(相生關係) but also to the restriction in the 5 element(相剋關係). Furthermore it was devised for the medical treatment by comning therapy for invigoration and purgation of itself-meridian(自經 補瀉法) with that of the other-meridian. Even though many original forms(正形) of the therapy for invigoration and purgation of the Yin Yang 5 Element Theory comply with the principle of the generation and the restriction based on the principle of the Yin Yang 5 Element Theory are abailable, variational forms(變形) are also recognized by examining the nature of the Sa-Ahm's 5 Element Acupuncture Method(舍嚴五行鍼法), For this reason, it is very difficult to understand the Sa-Ahm's 5 Element Acupuncture Method(舍嚴五行鍼法) thoroughly. therefore, those variational forms are obstacles for the beginners to study the Sa-Ahm's 5 Element Acupuncture Method. In order to understand the principle of the practical clinical application of the Sa-Ahm's 5 Element Acupuncture Method, this study investigated which principle was based on the variations of the locating acupuncture points' method for the acupuncture prescription.

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The Eastern and Western Medical Investigation on the Relation with I.I.C.P and Kwul (두개내압상승(頭蓋內壓上昇)과 궐의(厥) 상관성(相關性)에 대(對)한 동서의학적(東西醫學的) 고찰(考察))

  • Jung, Seung-Hyun;Park, Seong-Sik;Lee, Won-Chul
    • The Journal of Dong Guk Oriental Medicine
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    • v.3
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    • pp.237-267
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    • 1994
  • The purpose of this study is the approach to I.I.C.P. centered on the meaning of consciousness disorder and the pathological aspect of Kwul (Jose consciousness ; faint, fall into a coma). The meaning of consciousness disorder and apoplexy is evidently involved the definition of Kwul. 1. It is found that the etymological interpretation on Kwul which the energy rises back to go through blocked space and the meaning interpretation of regarding Kwul as apoplexy with medical viewpoint, are related with consciousness disorder and motor disturbance in IICP in the aspect of the rise of Kwul and the abnormal rising of vital energy and blood, In addtion, the overall of meaning of Kwul is showed in table <1-1> by reference to doctors of many generations, 2. The pathology of Kwul includes abnormal rising, sthenia-syndrome in the upper part and asthenia in the lower, the origin of Kwul, the lower, looking like Yin by too sthenic Yang and looking like Yang by too sthenic Yin. The headache, vomiting, papilledema, paralysis of nervi craniales, coma, blood pressure rising, tachycardia by I.I.C.P can be regarded as a conception of trouble of vital energy, sthenia-syndrome of Kwul. The pulse pressure, brachycardia, bradypnea can be regarded as the conception of looking like Yin by too sthenic Yang. 3. In the emergency of Kwul, the abnormal ternimal reversion of the Kwulyin channel, Kuyang channel, and three Yins are related with the phenomenon in I.I.C.P. It is considered that the reverse movement of materials, I.I.C.P. can be closely observed by giving meaning on the meridian of Kwul in Somunkwulron. And the content of phrases of Naelyung which includes consciousness disorder refered in the chapter of Kwul, is compared with I.I.C.P. 4. The followings should be considered; examination of optic symptom and abnormal posture in cerebral herniation ; understanding and working out counterplans of factors and symptoms of consciousness disorder by the observation of vital sign, check of general stages, neurologic inverstigation, clinical diagnosis, and subsidiary diagnosis; application of morphological change of opinion; addtion of the conception of demonstration centered on Yunkyung, Samyinkwulruk, asthenia and thenia of healthy energy in oriental medicine. 5. The similarity of Kwul and I.I.C.P. can be found from etiology and pathotenic factor. The similarity is clearly found by investigation of etiology, pathotenic factor, symptoms and thrapy of Kwul, disease symptom ar.d other symptoms.

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A Study on the Meaning and Cultural Properties Value of Rock-Go-Board from the Viewpoint of Site and Location Characteristics (입지와 장소 특성으로 본 암각바둑판의 의미와 문화재적 가치)

  • Park, Joo Sung;Rho, Jae Hyun;Sim, Woo Kyung
    • Korean Journal of Heritage: History & Science
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    • v.44 no.4
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    • pp.172-205
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    • 2011
  • Go bears significant meanings in terms of cultural and entertaining functions in Asia Eastern such as China and Japan. Beyond the mere entertaining level, it produces philosophical and mythic discourse as well. As a part of effort to seek an identity of Korean traditional garden culture, this study traced back to find meanings of rock-go-board and taste for the arts which ancestors pursued in playing Go game, through analysis and interpretation of correlation among origin of place name, nearby scenery, carved letters and vicinal handed-down place name. At the same time, their position, shape and location types were interpreted through comprehensive research and analysis of stone-go-boards including rock-go-board. Particularly, it focused on the rock names related to Sundoism(仙道) Ideal world, fixed due to a connection between traces of Sundoism and places in a folk etymology. Series of this work is to highlight features of the immortal sceneries, one of traditional landscaping ideals, by understanding place identity and scenic features of where the rock-go-boards are carved. These works are expected to become foundation for promotion and preservation of the traditional landscaping remains. The contents of this study could be summarized as follows; First, round stone and square board for round sky and angled land, black and white color for harmony of yin and yang and 361paths for rotating sky are symbols projecting order of universe. Sayings of Gyuljungjirak(橘中之樂), Sangsansaho(商山四皓), Nangagosa(爛柯故事) formed based on the idea of eternity stand for union of sky and sun. It indicates Go game which matches life and nature spatiotemporally and elegant taste for arts pursuing beauty and leisure. Second, the stone-go-boards found through this research, are 18 in total. 3 of those(16.1%), Gangjin Weolnamsaji, Yangsan Sohanjeong and Banryongdae ones were classified into movable Seokguk and 15(83.9%) including Banghakdong were turned out to be non-movable rock-go-boards carved on natural rocks. Third, upon the result of materializing location types of rock-go-boards, 15 are mountain stream type(83.9%) and 3 are rock peak type(16.1%). Among those, the one at Sobaeksam Sinseonbong is located at the highest place(1,389m). Considering the fact that all of 15 rock-go-boards were found at mountainous areas lower than 500m, it is recognizable that where the Go-boards are the parts of the living space, not far from secular world. Fourth, there are 7 Sunjang(巡將) Go with 17 Hwajeoms(花點), which is a traditional Go board type, but their existences, numbers and shapes of Hwajeom appear variously. Based on the fact, it is recognizable that culture of making go-board had been handed down for an extended period of time. Among the studied rock-goboards, the biggest one was Muju Sasunam[$80(82)cm{\times}80(82)cm$] while the smallest one was Yangsan Sohandjeong Seokguk ($40cm{\times}40cm$). The dimension of length and breadth are both $49cm{\times}48cm$ on average, which is realistic size for actual Go play. Fifth, the biggest bed rock, an under-masonry with carved Go-board on it, was one in Muju Sasunam[$8.7m{\times}7.5m(65.25m^2)$], followed by ones in Hoengseong Chuiseok[$7.8m{\times}6.3m(49.14m^2$] and Goisan Sungukam[$6.7m{\times}5.7m(37.14m^2)$]. Meanwhile, the smallest rock-go-board was turned out to be one in Seoul Banghak-dong. There was no consistency in directions of the Go-boards, which gives a hint that geographical features and sceneries of locations were considered first and then these were carved toward an optimal direction corresponding to the conditions. Sixth, rock-go-boards were all located in valleys and peaks of mountains with breathtaking scenery. It seems closely related to ancestors' taste for arts. Particularly, rock-go-boards are apprehended as facilities related to taste for arts for having leisure in many mountains and big streams under the idea of union of sky and human as a primitive communal line. Go became a medium of hermits, which is a traditional image of Go-game, and symbol of amusement and entertainment with the idea that Go is an essence of scholar culture enabling to reach the Tao of turning back to nature. Seventh, the further ancient time going back to, the more dreamlike the Go-boards are. It is an evident for that Sundoism, which used to be unacceptable once, became more visible and realistic. Considering the high relation between rock-go-boards and Sundoism relevant names such as Sundoism peak in Danyang Sobaeksan, 4 hermits rock in Muju and Sundoism hermit rock in Jangsu, Sundoism hermit rocks and rock-go-boards are sceneries and observation spots to express a communication of worship and longing for Sundoism. Eighth, 3 elements-physical environment such as location type of the rock-go-boards, human activities concentrated on 8 sceneries and Dongcheongugok(洞天九曲) setup and relevancy to Confucian scholars, as well as 'Sangsansaho' motif and 'Nangagosa' symbolic meaning were used as interpretation tools in order to judge the place identity. Upon the result, spatial investigation is required with respect to Sunyoodongcheon(仙遊洞天) concept based on enjoyment to unify with the nature rather than Dongcheongugok concept of neo-Confucian, for Dongcheon and Dongmoon(洞門) motives carved around the rock-go-boards. Generally, places where mountain stream type rock-go-boards were formed were hermit spaces of Confucianism or Sundoism. They are considered to have compromised one other with the change of times. Particularly, in the rock-go-board at the mountain peak, sublimity-oriented advent of Sundoism is considered as a significant factor to control place identity. Ninth, including where the rock-go-boards were established, the vicinal areas are well-known as parts of Dongcheongugok and Palkyung(八景) mostly. In addition, many of Sundoism relevant expressions were discovered even in the neighboring carvings written by scholars and nobility, which means sophisticated taste based on longing for Sundoism world played a significant role in making go-board. The rock-go-board is an integration of cultural phenomena naturally managed by seclusion of scholars in the Joseon Dynasty as well as remains and essence of Korean traditional landscaping. Some rock-go-boards out of 17 discovered in South Korea, including ones in Sobaeksan Sinsunbong, Banghak-dong, Chungju Gongili, Muju Sasunam, Yangsan Eogokdong Banryongdae Seokguk, are damaged such as cracks in rocks or fainted lines by hardships of time and hand stains. Worse yet, in case of Eunyang Bangudae Jipcheongjeong board, it is very difficult to identify the shape due to being buried. Rock-go-boards are valuable sculptures in terms of cultural asset and artwork since they reflect ancestors' love for nature and longing for Sundoism world. Therefore, they should be maintained properly with right preservation method. Not only rock-boards itself but also peripheral places are excellent cultural heritages and crucial cultural assets. In addition, vicinal sceneries of where rock-goboards and pavilion spots are the representative remains of embracing prototype of Korean traditional landscaping and major parts of cultural properties.

Correlations of Cross-sectional Areas of Psoas and Paraspinal Muscles in Patients with Lumbar Disc Herniation According to the Age Groups (연령대별 요추 추간판탈출증 환자의 요근과 척추주위근 단면적에 대한 분석)

  • Kong, Deok-Hyun;Bae, Kwang-Ho;Go, Ho-Yeon;Kang, Myung-Jin;Kim, Jun-Su;Yang, Kee-Young;Lee, Jae-Hoon;Eun, Young-Jun
    • Journal of Korean Medicine Rehabilitation
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    • v.20 no.4
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    • pp.159-169
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    • 2010
  • Objectives : This study was designed to evaluate the correlation of the cross-sectional areas(CSA) of paraspinalis(iliocostalis lumborum, multifidus, longissimus thoracis parts lumborum) and psoas muscle and sex, age, change of the VAS(visual analogue scale) and past history of chronic low back pain in patients suffering from HIVD(herniation of intervertebral disc). Methods : Medical records of 140 subjects with HIVD were retrospectively reviewed. The MRI(magnetic resonance imaging) findings on the patients were scanned and analyzed by PiView program to find the paraspinal and psoas muscle CSA and were evaluated by the correlation of sex, age, change of the VAS, and past history of chronic low back pain. Results : There was significant difference between groups in male and female, young-adults age and middle age, middle age and old age, young-adults age and old age. But the correlation of the paraspinal and psoas muscle CSA and past history of chronic low back pain were partially significant. On the other hand, the correlation of the paraspinal and psoas muscle CSA and change of the VAS were not significant. Conclusions : These results suggest that the cross-sectional areas(CSA) of paraspinalis and psoas muscle have relevance to sex and age.

Differential Gene Expression in GPR40-Overexpressing Pancreatic ${\beta}$-cells Treated with Linoleic Acid

  • Kim, In-Su;Yang, So-Young;Han, Joo-Hui;Jung, Sang-Hyuk;Park, Hyun-Soo;Myung, Chang-Seon
    • The Korean Journal of Physiology and Pharmacology
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    • v.19 no.2
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    • pp.141-149
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    • 2015
  • "G protein-coupled receptor 40" (GPR40), a receptor for long-chain fatty acids, mediates the stimulation of glucose-induced insulin secretion. We examined the profiles of differential gene expression in GPR40-activated cells treated with linoleic acid, and finally predicted the integral pathways of the cellular mechanism of GPR40-mediated insulinotropic effects. After constructing a GPR40-overexpressing stable cell line (RIN-40) from the rat pancreatic ${\beta}$-cell line RIN-5f, we determined the gene expression profiles of RIN-5f and RIN-40. In total, 1004 genes, the expression of which was altered at least twofold, were selected in RIN-5f versus RIN-40. Moreover, the differential genetic profiles were investigated in RIN-40 cells treated with $30{\mu}M$ linoleic acid, which resulted in selection of 93 genes in RIN-40 versus RIN-40 treated with linoleic acid. Based on the Kyoto Encyclopedia of Genes and Genomes Pathway (KEGG, http://www.genome.jp/kegg/), sets of genes induced differentially by treatment with linoleic acid in RIN-40 cells were found to be related to mitogen-activated protein (MAP) kinase- and neuroactive ligand-receptor interaction pathways. A gene ontology (GO) study revealed that more than 30% of the genes were associated with signal transduction and cell proliferation. Thus, this study elucidated a gene expression pattern relevant to the signal pathways that are regulated by GPR40 activation during the acute period. Together, these findings increase our mechanistic understanding of endogenous molecules associated with GPR40 function, and provide information useful for identification of a target for the management of type 2 diabetes mellitus.

The Discovery of woodcut 『ChiJongBang』 and its significance (버클리대 아사미문고본 치종방(治腫方)에 대하여)

  • Park, Sang Young;Lee, Jung Hwa;Kwon, Oh min;Ahn, Sang Young;Han, Chang Hyun;Ahn, Sang Woo
    • The Journal of Korean Medical History
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    • v.23 no.2
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    • pp.37-41
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    • 2010
  • There are two transcriptions of "ChiJongBang" in Korea at the moment. The first is the Jangseo-gak ibrary transcription(K3-380). The title is "ChiJongBang(治腫方)" and it starts with the contents of "ChiJongBang(治腫方)", followed by "HoeChunYoGyeol(回春要訣)", "NoInSeopYangBang(老人攝養方)", "SoABang(小兒方)". "ChiJongBang(治腫方)" does not even take up a large portion of the book. The other transcription is "ChiJongBang(治腫方)" in Geojil's "Uihui(宜彙)", which was presented into the worldin 1871(the 8th year of King Go-jong)by GeumRiSanIn(錦里山人). The contents of the two transcriptions are the same, and both are left by ImEonGuk. The latter part is identical to the contents of "ChimGuGyeongHeomBang". It was common fora medical book to have additional useful information attatched in the end, so it was thought that somebody added a part of "ChimGuGyeongHeomBang" at the end of "ChiJongBiBang". But the discovery of a woodcut "ChiJongBang" in Korean annotation confirmed that the making of this book was led by the government, and the fact that abscess was a big part of healthcare around the ImJinWaeRan(Japanese Invasion of Korea in 1592) period.

Evaluation of Visual Arts Policy during Kookmin Government Period (국민의 정부 시기 미술진흥정책의 성과와 한계)

  • Yang, Hyun-Mee
    • The Journal of Art Theory & Practice
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    • no.1
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    • pp.93-108
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    • 2003
  • The aim of this thesis is to evaluate visual arts policy during Kookmin government period(1998-2002). In the beginning, many artists had expected president Kim Dae Jung to enlarge arts support But the evaluation of them was very negative because the government was only interested in the development of cultural industry. First, I analysed the government expenditure in the visual arts. Department of Culture and Tourism took the responsibility of visual arts policy. The budget of arts and culture increased to 1 % of total government expenditure in this period. But the main factor was the increasement of cultural industry and tourism expenditure. The budget of visual arts in 2002 was only 6,600million won. Second, I analysed visual arts support programs. (1) The government introduced studio programs for the first time. For 5 years, 2 national studios and 23 public studios were established. (2) The number of art museum was increased to 62. (3) It introduced alternative space support program and supported 200million won annually. (4) Percent for art scheme reduced from 1% to 0.7% of total construction cost, but still 27 public sculpture gardens were built. (5) Business support for visual arts reduced because of IMF. (6) Also arts market froze and many commercial galleries were closed. (7) In order to revitalize region through arts and to promote international exchange of culture, Gwangju Biennale was created. Third, I analysed Arts Plan 2002. It had a radical limitation because it was established in the last year of Kookmin government period. Also it showed special favors to some arts organizations. In general, I think that positive outcomes are the introductions of the studio program and the alternative space support program. Especially alternative space support program enforced the diversity of visual arts, and encouraged creative young artists. But policy of arts market failed because of IMF and visual artists had to go through rough times.

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experiment and its upgrade with the large silicon charge detector

  • Lee, Jik;Nam, Ji-Woo;Park, Il-Hung;Yang, Jong-Man;Lee, Hye-Young;Na, Go-Woon;Jeon, Jin-A;Suh, Jung-Eun;Lim, Sun-In;Lee, Moo-Hyun;Seo, Eun-Suk
    • Bulletin of the Korean Space Science Society
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    • 2011.04a
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    • pp.20.2-20.2
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    • 2011
  • The NASA Antarctica balloon experiment CREAM has successfully collected the data of energetic cosmic rays during flights in past years. We will present the recent analysis results of the CREAM experiment. We will also report on the launch and recovery process of the latest flight. The silicon charge detector of the CREAM has played the key role in the precision measurement of the charge constitution of energetic cosmic rays. We proposed the upgrade of the CREAM experiment with the installment of a new large silicon charge detector on top of the CREAM instrument. The charge measurement of the large silicon detector with no material in front is expected to improve the accuracy of the CREAM charge measurement drastically when combined with the measurement of the existing double layer silicon detector. We will present the fabrication of the large silicon detector and its performance in the radiation source test as well as in the beam test.

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A Study on the System of Collaborative Practice between Korean Traditional Medicine and Western Medicine for Dementia based on a Case Study (증례를 통해 본 치매의 한양방 협진 모델 연구)

  • Lee, Go-Eun;Yang, Hyun Duk;Jeon, Won Kyung;Kang, Hyung-Won
    • Journal of Oriental Neuropsychiatry
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    • v.24 no.3
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    • pp.211-228
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    • 2013
  • Objectives : This report describes the diagnostic and therapeutic procedures of Collaborative Practice between Korean Traditional Medicine and Western Medicine for two dementia patients. Furthermore, through these cases, we suggest a model of collaborative practice between Korean traditional medicine and western medicine for the treatment of dementia. Methods : Two patients suffering from several symptoms related to dementia received collaborative practice between Korean traditional medicine and western medicine. Physicians of deparment which paient first visit interviewed patient and patient's guardians, discussed the symptoms and the status of the patient. Since then, the medical team made a differential diagnosis based on the results of brain imaging, hematology, urine test. and apprehended the status of dementia by the neuropsychological test. Korean traditional physicians examined the physical symptoms and identified the pattern of dementia in Korean traditional medicine. Following this, they decided on the method of acupuncture, moxibustion, cupping and herbal treatment. Western physicians decided on the type of medication after consideration of the patient's other medical conditions. Every intervention was decided by both Korean traditional physicians and western physicians after discussion. The medical team provided education on dementia and counseled the guardians. They also wrote the paper for using the long-term care insurance for the aged. Results : Two patients showed no improvement on the neuropsychologic and activity of daily living tests. However, the patients' subjective physical symptoms were improved. The collaborative practice between Korean traditional medicine and western medicine improved the patients' and guardians' satisfaction. Conclusions : Through these cases, we propose a model of collaborative practice between Korean traditional medicine and western medicine for dementia categorized diagnosis-test, treatment, prevention, management. More specifically, we supplement qigong and psychotherapy which was inadequate in these cases.