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지진 하중조건에서 배관 건전성 평가를 위한 실험적 연구 현황
김진원,김종성,김윤재,권형도,Kim, Jin Weon,Kim, Jong Sung,Kim, Yun Jae,Kweon, Hyeong Do 한국압력기기공학회 2017 한국압력기기공학회 논문집 Vol.13 No.1
This paper reviewed and summarized the experimental studies conducted during last three decades to evaluate the structural integrity and to establish the acceptance criteria for piping system of nuclear power plants (NPPs) under seismic loading condition. These experimental studies contain the results of large-scale piping system tests under excessive seismic loading as well as standard specimen tests, simplified piping specimen tests, and piping components tests under simplified dynamic and cyclic loading. These would be useful as a basis for establishing integrity assessment procedure and acceptance criteria for piping systems of NPPs under beyond design basis earthquake (BDBE) conditions, and also could be used in planing the scope and direction of further related researches.
전환장애를 간양화풍(肝陽化風)으로 변증(辨證)한 치험 1례(例)
김진원,정병주,우성호,김병철,손지형,임호제,황규동,서호석,김용호,한승혜,Kim, Jin-Won,Jeong, Byeong-Ju,Woo, Sung-Ho,Kim, Byung-Chul,Son, Ji-Hyung,Lim, Ho-Jae,Hwang, Gyu-Dong,Seo, Ho-Seok,Kim, Yong-Ho,Han, Seung-Hea 대한한방내과학회 2005 大韓韓方內科學會誌 Vol.26 No.2
Conversion disorder lacks temperamental grounds and is a type of somatoform disorder that includes alteration or loss of physical functions implicated in physical deficit suggestive psychological conflict. There is high incidence of return of conversion disorder and difficulty in producing exact approaches of cure and apparent effects of remedy with symptomatic treatment alone because of its complex clinical symptoms. The approach of Oriental Medicine in treatment of conversion disorder is to apprehend relative symptoms from the syndrome combined with several annexational symptoms centering around sequential symptoms. Thereupon, author made a Ganyanghwapung comprehensive diagnosis was conducted using Oriental Medicine measures by differential diagnostic methods in psychosomatic patients whose cases are diagnosed as conversion disorder. Then, Cheonmagudeungeum Gagambang was prescribed for them and it brought on satisfactory effects from the first or second treatment. There have been many cases reporting the application of Oriental Medicine treatment to conversion disorder to date and outcomes have also been favorable. Results of this study likewise suggest that this Oriental Medicine treatment for conversion disorder is effective.
파킨슨병으로 유발된 진전이 한약 치료를 통하여 호전된 치험 1례
김진원,김병철,우성호,나유진,심효주,이원희,이지영,서호석,김용호,정병주,Kim, Jin-Won,Kim, Byung-Chul,Woo, Sung-Ho,Na, Yu-Jin,Shim, Hyo-Ju,Lee, Won-Hui,Lee, Ji-Young,Seo, Ho-Seok,Kim, Yong-Ho,Jeong, Byeong-Ju 대한한방내과학회 2006 大韓韓方內科學會誌 Vol.27 No.4
As society ages, the seriousness of Parkinson's disease in the elderly increases. This study was performed in order to evaluate the effect of Korean medical treatments on Parkinson's symptoms. An elderly patient was diagnosed with Parkinson's disease by clinical symptoms, which were resting tremor, pill-rolling tremor and mild bradykinesia. We treated her disease with Korean medical treatment, including herbal medicine and acupuncture therapy and excluding western medication. For the herbal medicine, Insamyangyeong-tang (人參養榮湯), Bobi-tang (補脾湯), Dokhwaljihwang-tang (獨活地黃湯) and Sipimijihwang-tang (十二味地黃湯) were primarily used. In result, the clinical symptoms, measured by unified Parkinson's disease rating scale (UPDRS) and modified Hoehn and Yahr stage (H-Y stage), of Parkinson's disease in this patient had improved after the Korean medical treatment. This study suggests that Korean medical treatments can be applicable to improve symptoms in patients with Parkinson's disease.
복수 동반 간병변 환자의 평위산(平胃散) 합(合) 위령탕가미방 투여 호전 1례
김진원,정병주,우성호,심효주,나유진,김용호,서호석,이원희,김병철,Kim, Jin-Won,Jeong, Byeong-Ju,Woo, Sung-Ho,Shim, Hyo-Ju,Na, Eu-Jin,Kim, Yong-Ho,Seo, Ho-Seok,Lee, Won-Hui,Kim, Byung-Chul 대한한방내과학회 2006 大韓韓方內科學會誌 Vol.27 No.4
Background : Liver cirrhosis is a disease of the liver in which normal cells are replaced by scar tissue. This condition results in the failure of the liver to perform many of its usual functions. Liver cirrhosis includes ascites, jaundice, portal hypertension, varices etc. Objectives : This study was to see if there is a decrease in ascites of liver cirrhosis to under acupuncture and herbal treatment to test their validity. Methods : Measuring the response to treatment of ascites by giving pyengwie-san hap wieryungtang gamibang and treating the patient with acupuncture, these clinical symptoms were observed: weight, abdominal circumference, abdominal SONO, chest X-ray, and lab findings. Results : Over 18 days the daily average loss of weight and abdominal circumference 0.43kg and 0.56cm, respectively. Lab findings of liver functions showed improvement. Conclusions : This report shows a role for acupuncture and herbal treatment for treating ascites in liver cirrhosis.
김진원,박치용,이성호,Kim, Jin-Weon,Park, Chi-Yong,Lee, Sung-Ho 대한기계학회 2007 大韓機械學會論文集A Vol.31 No.10
This study performed a series of burst tests at ambient temperature using real-scale elbow specimen containing a local wall-thinning defect at it's intrados or extrados and evaluated failure pressure of locally wall-thinned elbows. In the experiment, a 90-degree 100A, Sch. 80 standard elbow was employed, and various wall-thinning geometries, such as length, depth, and circumferential angle, were considered. From the results of experiment, the dependences of failure pressure of wall-thinned elbows on the defect geometries and locations were investigated. In addition, the reliability of existing models was examined by comparing the tests data with the results predicted from existing failure pressure evaluation models for locally wall-thinned elbow.
Freestanding GaN 기판의 Ga-polar 면에 기계적 연마 방법을 적용한 Bow 제어 및 그 특성 연구
김진원,손호기,임태영,이미재,김진호,전대우,황종희,정정영,오해곤,김진훈,최영준,이혜용,윤대호,Gim, Jinwon,Son, Hoki,Lim, Tae-Young,Lee, Mijai,Kim, Jin-Ho,Jeon, Dae-Woo,Hwang, Jonghee,Jung, Jung-Young,Oh, Hae-Kon,Kim, Jin-Hun,Choi, YoungJun,Le 한국전기전자재료학회 2015 전기전자재료학회논문지 Vol.28 No.12
In this paper, we have studied the effect of mechanical polishing to Ga-polar face for reducing the wafer bowing and strain in free-standing GaN. After the mechanical polishing to Ga-polar face, the bowing of the free-standing GaN substrate significantly decreased with increasing the size of diamond slurry, and eventually changed the bowing direction from concave to convex. Furthermore, the full width at half maximum (FWHM) of high-resolution X-ray diffraction (HR-XRD) were decreased, especially the FWHM of (1 0 2) reflection for $1.0{\mu}m$ size of diamond slurry was significantly decreased from 630 to 203 arcsec. In the case, we confirmed that the compressive strain in Ga-polar face was fully released by Raman measurement.
Conduction Behaviors of CaBi4Ti4O15 Thin Films Prepared by Using Chemical Solution Deposition
김진원,Seung Woo Yi,Dalhyun Do,Sang Su Kim 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.54 No.2
The ferroelectric CaBi4Ti4O15 (CBT), an Aurivillius family with n = 4, thin film was prepared on a Pt(111)/Ti/SiO2/Si substrate by using chemical solution deposition followed by rapid thermal annealing at 650℃ for 3 min in an oxygen atmosphere. The CBT film was found to be randomly oriented without any observable secondary phases. The electrical properties of the CBT films were investigated systematically. The CBT thin film exhibited a good P-E hysteresis loop with a large remanent polarization (2Pr) of 54 uC/cm2 and a low coercive field (2Ec) of 168 kV/cm at an electric field of 250 kV/cm. The dielectric constant and the dielectric loss were 390 and 0.028, respectively, at 100 kHz. According to the J-E curves of the CBT thin film, the current conduction mechanisms were found to be dominated by Ohmic and Schottky emission conductions at low and high electric fields, respectively. Furthermore, the values of the pulse polarizations [i.e., +(P*-P^) or -(P*-P^)] of the film were reasonably unchanged up to 1.4×1010 switching cycles. The ferroelectric CaBi4Ti4O15 (CBT), an Aurivillius family with n = 4, thin film was prepared on a Pt(111)/Ti/SiO2/Si substrate by using chemical solution deposition followed by rapid thermal annealing at 650℃ for 3 min in an oxygen atmosphere. The CBT film was found to be randomly oriented without any observable secondary phases. The electrical properties of the CBT films were investigated systematically. The CBT thin film exhibited a good P-E hysteresis loop with a large remanent polarization (2Pr) of 54 uC/cm2 and a low coercive field (2Ec) of 168 kV/cm at an electric field of 250 kV/cm. The dielectric constant and the dielectric loss were 390 and 0.028, respectively, at 100 kHz. According to the J-E curves of the CBT thin film, the current conduction mechanisms were found to be dominated by Ohmic and Schottky emission conductions at low and high electric fields, respectively. Furthermore, the values of the pulse polarizations [i.e., +(P*-P^) or -(P*-P^)] of the film were reasonably unchanged up to 1.4×1010 switching cycles.