• Title/Summary/Keyword: Cold Damage

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Youzaijing's Pathologic View on the Outbreak Region of Chest Bind (결흉(結胸)의 발병 부위에 대한 우재경(尤在涇)의 병리관)

  • Chough, Won-Joon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.4
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    • pp.733-739
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    • 2008
  • It was said that the epigastric region was the outbreak region of chest bind on Shanghanlon. But successive medical men annotated the epigastric region as the chest, which caused the misunderstanding that chest bind was a chest trouble. However Youzaijing, a medical man in Qing dynasty, presented that the epigastric region meant stomach and the middle of stomach did intestines, comparing Dachengqi-tang with Daxianxiong-tang. This view agreed with Huatuo's six-region-transmutation theory. Taojiean and Zhangjingyue also criticized on the six-meridian-transmutation theory, proposing that the change of cold damage didn't go by the fixed rules. This reflected the oriental medical pathologic view that pathogen invaded and advanced to the weak region by the relations between healthy qi and pathogen, and it criticized on the doctrinarian interpretation of Shanghanlon as Neijing. Huatuo insisted that stomach was the final stage of cold damage by presenting that theory. And this theory became a philological basis on Youzaijing's pathologic view.

Studies on the Reducing Methods of Cold Wind Damage of Rice Plant by Installation of Wind break Net in the Eastern Coastal Area III. Effect on the Reducing Method of Cold Wind Damage to the Net Meshes of Wind break Net. (동해안 냉조풍지대의 방풍강에 의한 수도의 풍해 경감 연구 III. 방풍강의 강목에 따른 풍해경감 효과)

  • Lee S. P.;Kim S. K.;Lee K. S.;Choi D. U.;Kim C. Y.
    • Proceedings of the Korean Society of Crop Science Conference
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    • 1990.05a
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    • pp.66-67
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    • 1990
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Different Theories on Coming into Being and Transmutation of Six-meridian, Cold Damage (상한(傷寒) 육경(六經)의 성립과 전변에 대한 이설)

  • Chough, Won-Joon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.1
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    • pp.1-8
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    • 2010
  • They have brought many inconsistencies by making much of Wang Sukhwa's six-meridian-transmutation-theory based on Yeollon, Somun in Oriental traditional medicine. On this many medical men such like Hwa Ta have raised objections to that or insisted on its repeal. Wang Geungdang and Yang Soi posed the problem of editing tables of contents, Bang Yujip and Ga Geum etc. gave explanations of fields of six-meridian, Un Cheolcho and Jang Gyeongak etc. presented cause and direction of transmutation. And Gilik Dongdong insisted on its repeal. Sanghannon was the theory that was arranged various experiences of acute epidemic diseases. But they didn't recognize the differences between analogous epidemic diseases, regarded as the same things in Oriental traditional medicine, and this made many inconsistencies. This is the reason why many medical men raised objections to Wang Sukhwa's six-meridian-transmutation-theory.

A Study on the Design of Cold Forging Die with Parted Notch (분할된 노치형상을 고려한 냉간단조 금형 설계에 관한 연구)

  • Lee, H.Y.;Yeo, H.T.;Hur, K.D.
    • Transactions of Materials Processing
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    • v.16 no.6
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    • pp.452-456
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    • 2007
  • Cold forging technology of a gear product is being interested in the dimensional accuracy, high stiffness and reduction of stress concentration. Especially it is needed to avoid the damage due to extremely high local pressure. Therefore it is important to reduce the high pressure in die design of cold forging. In this study, single die insert type and splitted die insert type are considered to recognize the notch effects in the die of sprocket forming. The stress concentration has been released at the notch area by the cushion effect in the splitted die insert.

A Field Study on the Mass Concreting in Cold Weather Environment (매스콘크리트의 한중시공에 관한 현장실험연구)

  • 한민철;김현우;김성수;최강순;한천구
    • Proceedings of the Korea Concrete Institute Conference
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    • 1999.04a
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    • pp.287-292
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    • 1999
  • Mass concreting in cold weather environment should be focused on the control of thermal crack caused by high hydration heat rather than curing method for protecting from frost damage at early age because the thermal stress have much influence on the quality of structure placed in cold weather. Therefore, in this paper, the control of thermal crack of mass concrete in cold weather environment are dealt with preparing the practice plan for mass concrete and placing the concrete according to the plactice plan. According to the results, we can obtain good quality mass concrete without thermal crack caused by the difference of temperature between inner part and outer part.

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A Study ‘On the Morbid Pulse of Abdominal Fullness, Cold Mounting, and Abiding Food' in the Chapter 10 of Synopsis of Golden Chamber (금궤요약(金匱要略).복만한산숙식병맥증병치제십(腹滿寒疝宿食病服證幷治第十)에 대(對)한 연구(硏究))

  • Seo, Dae-Seon;Ahn, Jun-Mo;Cho, Gyeong-Jong;Jeong, Heon-Young
    • Journal of Korean Medical classics
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    • v.19 no.2 s.33
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    • pp.138-162
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    • 2006
  • 'On the Morbid Pulse of Abdominal Fullness, Cold Mounting, and Abiding Food' in the Chapter 10 of Synopsis of Golden Chamber that enunciates Abdominal Fullness, Cold Mounting, and Abiding Food is related to the stomach and intestines respectively, and is similar to the region and symptom of disease in the light of both abdominal fullness and symptoms of pain. This chapter was united into one because the formula mentioned in this chapter can be applied to three disease patterns. Abdominal fullness shows the symptoms of distention and unease, but judging from the text as well as a specific formula and symptoms, it follows pain. Accordingly Abdominal fullness dealt with in this chapter is the first consideration and it is a kind of a disease pattern attendant on abdominal pain. Cold Mounting does not mean mounting gi disease but means the abdominal pain. The cause of cold mounting is mainly due to insufficiency of yang gi and oversufficiency of cold evil. And the main symptoms of cold mounting follow the severe pain around the naval and sweating, cold of the extremities, pulse deep and tight. Abiding food is of the same meaning such as damage of food today. Abiding food is now referred to as damage of food. Principles which have set forth in this chapter are put to use of the method of ejection in case that abiding food places in the upper part, precipitation in the lower part. The symptoms of abiding food show that the pulse is slight and slippery and the wrist pulse is both superficial and large and rough in applying the pressure, and the cubit pulse is also slight and superficial as well, and that have diarrhea and have little appetite.

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Temperature History of Concrete Corresponding to Various Bubble Sheets Layer and Curing Temperature (양생온도 변화 및 버블시트 두께변화에 따른 콘크리트의 온도이력특성)

  • Hong, Seak-Min;Baek, Dae-Hyun;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2008.11a
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    • pp.21-25
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    • 2008
  • In this paper, the temperature history and the strength development of concrete corresponded to various bubble sheets layer and curing temperature. Based on the results, In case of the test temperature of -5℃, concrete subject in the exposure condition, result in a frost damage at initial stage by a fall of below zero temperature. In case of the combination of PE film and non woven fabric was after 36 hour, and combination of bubble sheet over double, a tremendous insulating effect of bubble sheet over double is confirmed due to the temperature of concrete fall of below zero temperature after 60 hours. Meanwhile, regarding the -15℃ of temperature, special measure for insulation curing is necessary to secure stability against early frost damage because frost damage was not affected by the lapping thickness of bubble sheet subjected to severe cold weather condition.

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Study on Chevron Crack Occurring in a 4-stage Open Cold Extrusion Process by Finite Element Method (유한요소법을 이용한 4단 개방냉간압출시 발생하는 셰브론 크랙에 관한 연구)

  • Hwang, H.S.;Lee, Y.S.;Joun, M.S.
    • Transactions of Materials Processing
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    • v.26 no.4
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    • pp.210-215
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    • 2017
  • In this paper, utilizing the theory of ductile fracture a chevron crack in a 4-stage open cold extrusion process is predicted by the finite element methods and then compared with previous experiments. The normalized Cockcroft-Latham damage model is employed and the material is identified using a tensile test based material identification technique that gives fracture information as well as flow stress at large strain. A large difference between the predicted cracks and actual experiments is observed, specifically narrower width and greater maximum height of the crack. This reveals the limitation of this approach based on the conventional theory of ductile fracture. Based on the observations and the related criticisms, a new approach for predicting the chevron crack is proposed, suggesting that either the critical damage should not be a fixed material constant, or that the conventional fracture theory should be considered with the effects of embrittlement due to accumulated plastic deformation while the duration of crack generation and plastic deformation should be reduced.

Cold Storage of Kiyomi Tangor Produced in Cheju (제주산 만감류 청견의 저온저장)

  • Koh, Jeong-Sam;Kim, Min
    • Food Science and Preservation
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    • v.3 no.1
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    • pp.15-21
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    • 1996
  • Physicochemical properties and the conditions of cold storage of kiyomi clangor(Citrus unshiu x sinensis) produced in Cheju were investigated. Firmness, edible part ratio, soluble solids, and acid content were decreased gradually with incurasing fruit size. Carbohydrates in juice were consisted of 65.12% sucrose, 19.65% fructose, and 15.23% glucose The main organic acrid In juice was 57.4% of citric acid, and others were lactic acid, malic acid, oxalic acid and fumaric acid, respectively. Weight loss were occured very. slowly to about 6% till late of May, but decayed fruits were occurred very slowly to about 6% till late of May, but decayed fruits were arisen to about 8% at 3$^{\circ}C$, and about 13% at 5$^{\circ}C$ of storage temperature. The changes of peel moisture content, soluble solids, total sugar, vitaamin C, and density of fruits were slightly occured during cold storage. Cold storage at 3$^{\circ}C$ and 87% relative humidity kept freshness of citrus fruits for a long-term without damage of cold injury.

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