계절과 연령은 중풍환자의 증후(證候)에 어떠한 영향을 미치는가?

이경진,정은정,문상관,고창남,조기호,김영석,배형섭,이경섭,노진환,Lee, Kyung-Jin,Jeong, Eun-Jeong,Moon, Sang-Kwan,Ko, Chang-Nam,Joh, Ki-Ho,Kim, Young-Suk,Bae, Hyung-Sup,Lee, Kyung-Sup,Roh, Jin-Hwan 대한한방내과학회 2001 大韓韓方內科學會誌 Vol.22 No.1

Objective : We wanted to examine the differences of symptoms of stroke by seasons and age groups. Methods : We recorded the symptoms of 254 stroke patients for 1 year and statistically analyzed the results. The Chi-Square test was used for the analysis.(p<0.05). Results : There was no difference of symptoms by age, but the symptoms were different by seasons. In spring and autumn, there was a large amount of Hwa. In summer, there was a large amount of Kihuh, and in winter, there was a large amount of Hwa and Dahm. Conclusions : We have concluded that these differences should be considered in the management and the prevention of stroke.

유우의 제4위전위증에 관한 연구

이경진,김태종,장경진,Lee Kyung-Jin,Kim Tae-Jong,Chung Kyung-Jin 대한수의사회 1984 대한수의사회지 Vol.20 No.4

The occurrence of left displacement of the abomasum (LDA) were studied in 32 dairy cows of surrounding pastures in Gim-po contry of Kyung-Gi Do through year. The results observed were as follows; 1. The rate of occurrence by LDA were the most in the first

강판콘크리트 구조 이질접합부의 면외 휨/면내 전단하중 특성에 관한 실험연구

이경진,황경민,함경원,김우범,Lee, Kyung-Jin,Hwang, Kyeong-Min,Hahm, Kyung-Won,Kim, Woo-Bum 한국강구조학회 2012 韓國鋼構造學會 論文集 Vol.24 No.2

본 연구는 L형, I형 실험체에 강판 콘크리트 구조와 철근콘크리트 구조를 적용하여 이질접합부를 만들고, 실험체에 반복하중을 파괴 시 까지 가력하여 면외 휨 내력 및 면내 전단 내력을 평가하고 구조특성을 검토하기 위해서 실험연구를 수행하였다.본 연구에서 면외 휨 성능실험은 접합부에서 정착부 수직철근이 인발되면서 파괴되었고, 면내 전단성능실험은 기초부에서의 휨 균열이 발생하여 파괴되었으며, 이론식과의 비교결과 최대 내력이 실험값/이론값의 결과가 면외 휨성능실험은 96%, 면내 전단성능실험은 82%의 값을 나타내었다. This paper describes an experimental study on the mechanical characteristic and behavior of a structure that has a joint between the reinforced concrete (RC) member and steel plate concrete (SC) member. An out-of-plane flexural test on an L-type test specimen and in-plane shear test on an I-type test specimen were carried out by means of repeated cyclic loading until their failure. Based on the results, the former showed pull-out failure mode of anchored vertical bars while the latter exhibited flexural failure mode of the basement member. These results reveal that the maximum capacity of the specimens is 96% and 82%, respectively, compared with the theoretical value.

골내 결손부에서 법랑기질 유도체의 임상적 효과

이경진,김민중,윤정호,정의원,김창성,최성호,조규성,채중규,김종관,Lee, Kyung-Jin,Kim, Min-Jung,Yun, Jeong-Ho,Jung, Ui-Won,Kim, Chang-Sung,Choi, Seong-Ho,Cho, Kyoo-Sung,Chai, Jung-Kiu,Kim, Chong-Kwan 대한치주과학회 2004 Journal of Periodontal & Implant Science Vol.34 No.3

tachment level was changed from $8.67{\pm}1.72mm$ to $7.00{\pm}1.60mm$ (control); from $8.93{\pm}2.23mm$ to $6.00{\pm}1.92mm$ (test); and bone probing depth was decreased from $10.20{\pm}1.90mm$ to $9.07{\pm}1.95mm$ (control); from $10.14{\pm}2.14mm$ to $7.43{\pm}2.06mm$ (test). This study indicates that treatment of periodontal intrabony defects with EMD is clinically superior to treatment without EMD (OFD alone) in every parameter evaluated. Within the limits of this study, the application of EMD in intrabony defects resulted in clinically significant gain of clinical attachment level and decrease of bone probing depth. And further controlled clinical studies are required to confirm the effectiveness of the EMD in the treatment of various osseous defects.

부신선종으로 인한 원발성 알도스테론증 환자 1례

이경진,구본수,조기호,Lee, Kyung-Jin,Koo, Bon-Soo,Cho, Ki-Ho 대한한방내과학회 1999 大韓韓方內科學會誌 Vol.20 No.1

We report 1 patient with Primary aldosteronism caused by malfunction of adrenal gland. which occupies 1-2% of the whole Hypertensive disease. The patient was 35 year-old female with the history of hypertension. She was hospitalized at Department of Circulatory Internal Medicine. College of Oriental Medicine, Kyung Hee University, Seoul, because of low limb weakness, chest discomport, palpitation and dry mouth. The value of serum potassium level was o.6 and at last adenoma was diagnosed on the basis of abdomen CT scan. The Primary aldosteronism manifests myasthenia, headache, dry mouth, palpitation. In laboratory findings, it especially shows specific U -wave in EKG due to low serum potassium level resulted from excessive flow-out through urine. It could be regarded as ‘Flaccid paralysis of Limbs(?症)‘, the Oriental medical term which indicates a condition of general weakness. We report on this case with a review of literature.

평면 이미지 기법을 이용한 분무 특성 해석

이경진,정기훈,윤영빈,정경석,정인석,Lee, Kyung-Jin,Jung, Ki-Hoon,Yoon, Young-Bin,Jeong, Kyung-Seok,Jeung, In-Seuck 대한기계학회 2000 大韓機械學會論文集B Vol.24 No.1

The characteristics of spray nozzle have been quantified with the measurement of fluorescence and Mie scattering images. To correct the attenuation of the incident light sheet, a sequential double-pass light sheet system and the geometrical averaging of two images was implemented. Quantitative mass flux distribution of spray was obtained from fluorescence image. 3-D image is reconstructed using 2-D radial images. Sauter mean diameter (SMD) distribution was determined using the ratio of fluorescence signal intensity and Mie scattering signal intensity and the values were quantified with PDP A data. The measurement of mass flux and SMD using planar imaging technique agee with PDP A data fairly well in the low density region. However, in dense region, there are significant errors caused by secondary scattering. It was found that the planar imaging technique provides many advantages over the point measurement technique, such as PDP A, and can be implemented for quantitative measurement, especially in low density region.

철근 콘크리트 구조와 강판 콘크리트 구조(Steel Plate Concrete) 이질접합부를 가진 보의 휨 하중 특성에 관한 실험연구

이경진,함경원,박동수,김우범,Lee, Kyung-Jin,Hahm, Kyung-Won,Park, Dong-Soo,Kim, Woo-Bum 한국강구조학회 2010 韓國鋼構造學會 論文集 Vol.22 No.5

본 연구는 철근콘크리트 구조와 강판 콘크리트 구조가 혼합되어 이질접합부가 있는 보형 구조물의 역학적 특성을 평가하기 위하여 수행하였다. 강판콘크리트 구조는 현재 국내와 일본, 미국 등에서 연구가 진행되고 있고, 대규모 산업설비에서 철근콘크리트 구조의 대안으로 실험연구가 수행되고 있다. 본 연구에서는 대규모 철근콘크리트 구조물에 강판 콘크리트 구조를 적용할 경우를 가정하여 보 형태의 구조물에 강판 콘크리트 구조와 철근 콘크리트 구조를 적용하여 이질접합부를 만들고, 면외하중을 파괴 시까지 가력하여 이질접합부를 가진 보형실험체의 휨 내력 및 구조특성을 평가하기 위하여 실험연구를 수행하였다. This paper describes the experimental study on the mechanical characteristics of a steel plate-reinforced concrete joint. As an alternative reinforced concrete structure, the SC modular construction method is widely used and studied in the field ofindustrial facility field. However, the structure characteristics of RC and SC joint are not yet studied completely. In this paper, the beam-type construction joint of RC and SC walls was made to simulate the application of SC module to the large RC structure. Also, an out-of-plane loading was applied to the test specimen in order to evaluate flexural strength and structural properties of the beam-type RC-SC joint.

RC 슬래브와 SC 벽 접합부의 전단마찰 거동에 관한 실험연구

이경진,황경민,김우범,Lee, Kyung Jin,Hwang, Kyeong Min,Kim, Woo Bum 한국강구조학회 2013 韓國鋼構造學會 論文集 Vol.25 No.6

본 연구에서는 RC 구조 슬래브와 SC 구조 전단벽이 만나는 접합부의 거동특성을 파악하고 RC구조 슬래브-SC구조 전단벽 이질접합부의 전단마찰내력을 평가하고 KEPIC SNG의 접합면 소요전단강도 기준의 안전율을 평가하기 위해 실험연구를 수행하였다. 연구결과, 접합면의 전단마찰내력은 약 300kN으로 나타났고, 변위가 증가할수록 철근의 내력분담이 증가하게 되며, 상부철근보다는 하부철근의 전단내력 분담율이 높은 것으로 나타났다. 하부철근을 구성한 경우에는 하부철근이 없는 실험체에 비해 40% 이상 전단내력이 증가하는 것으로 나타났다. In this study, the structure behavior of RC slab and SC shear wall connection was investigated. Also experimental study was performed to evaluate the factor of safety of demand shear connection strength in KEPIC SNG Standard. As a result, shear friction strength of connection was known about 300kN and shear strength of rebar increased according to the displacement increase. With the installment of the lower rebars, 40% shear strength increased compared to the non-rebar specimen.

파킨슨환자의 자기공명영상과 미세전극기록을 이용한 담창구 파괴술

이경진,손형선,박성찬,조경근,박해관,최창락,Lee, Kyung Jin,Son, Hyung Sun,Park, Sung Chan,Cho, Kyung Keun,Park, Hae Kwan,Choi, Chang Rak 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.1

Objective : The exact position of the lesion during the pallidotomy is critical to obtain the clinical improvement of parkinson's disease without damage to surrounding structure. Ventriculogrphy, CT(computed tomograpy) or MRI(magnetic resonance imaging) have been used to determine the initial coordinates of stereotactic target for pallidotomy. The goal of this study was to determine whether microelectrode recording significantly improves the neurophysiologic localization of the target obtained from MRI. Methods : Twenty patients were studied. They underwent a unilateral pallidotomy. Leksell frame was applied and T1 axial images parallel to the AC-PC(anterior commissure-posterior commissure) plane using a 1.5 Tesla MRI with 3mm slice thickness were obtained. Anteroposterior coordinate of target was chosen at 2mm in front of the midcommissural point and lateral coordinate between 19 and 22mm from the midline. The vertical coordinate was calculated on coronal slice using a fast spin echo inversion recovery sequence(FSEIR) related to the position of the choroidal fissure and ranged over 4-5mm below the AC-PC plane. Confirmation of the anatomical target was done on axial slices using the same FSEIR sequence . Microrecording was done at the pallidum contralateral to the symptomatic side using an electrode with a tip diameter of $1{{\mu}m}$ diameter tip and 1.1-1.4 mOhm impedance at 1000Hz. Electrophysiologic localization of the target was also confirmed intraoperatively by macrostimulation. Results : Microrecording techniques were reliable to define the transition from the base of the pallidum which was characterized by the disappearance of spike activity and by the change of the audible background activity. Signals from high amplitude neurons firing at 200-400Hz were recorded in the pallidal base. X, Y and Z coordinates of target obtained from the MRI were within 1mm from the X, Y, Z coordinates obtained with microrecording in 16 patients (80%), 15 patients(75%), 10 patients(50%) respectively. The difference of Y coordinate between on MRI and on microrecording was 4mm in only one patient. Conclusion : The MRI was accurate to localize the target within 1mm of the error from microrecording target in 70% of the patients. 4mm discrepancy was observed only once. We conclude that MRI alone can be used to determine the target for pallidotomy in most patients. However, microrecording technique can still be extremely valuable in patents with aberrant anatomy or unusual MRI coordinates. We also consider physiologic confirmation of the target using macrostimulation to be mandatory in all cases.

MANETs에서 정책기반 망 관리를 위한 Active PDP Discovery

이경진,송왕철,Lee Kyung-Jin,Song Wang-Cheol 한국통신학회 2006 韓國通信學會論文誌 Vol.31 No.5b

Mobile Ad-hoc Networks(MANETs)에서 정책기반 네트워크 관리를 위해서는 기존의 유선망 관리 방법으로는 신뢰성과 효율성을 보장 할 수 없다. 그러므로 MANETs 관리는 노드들을 효과적으로 클러스터하고 이동 관리를 하는 것이 필수적이다. 본 논문에서는 분산 되어 있는 PDP(Policy Decision Point)를 발견하는 Active PDP Discovery Protocol과 PEP(Policy Enforcement Point)노드 이동 감지를 위해 COPS-PR을 확장하고 PDP에 MNL(Management Node List)를 추가하여 PEP노드를 관리하는 방법을 제안한다. 그리고 시뮬레이션을 통해 얻은 결과를 분석하고 결론으로 끝맺는다. Policy-based Network Management(PBNM) in the Mobile Ad-hoc network(MANETs) requires additional, reliable and efficient mechanism over PBNM in wired network. Thus, it is important that the management system in MANETs should cluster the moving nodes and manage their movements in an effective manner. In this thesis, I propose a mechanism for the policy-based management in ad hoc networks in which I consider several methods to discover the Policy Decision Point(PDP), set the management area, and manage the movements of Policy Enforcement Point(PEP) nodes in the PBNM system. Moreover, COPS-PR is extended for the mechanism. Finally, I analyze and validate the results through simulations.