차별화된 예약 관리를 통한 방사선 검사 미 예약률 감소 방안

이종세,유병헌,유희옥,이근옥,강성진,조인완,이기협,유은정,홍정우 한국의료QA학회 2006 가을학술대회 Vol.2005 No.2

麻藥中毒과 治療 및 再活 實態에 關한 硏究

이종세,박경숙 중앙대학교 의과대학 간호학과 간호과학연구소 2002 중앙간호논문집 Vol.6 No.1

According to the previous mentions, the demand of drug is increasing trend. This can be explained that people use the drug by the last method to escape in the confused society. Recently, The drugs are researched continuously by a person or group who pursue illusion and profit Besides, the Smuggling and concealing measures of the drug are also diversifying and intellectualizing. Thus investigation system of drug offenders must be acquired the professional knowledge and investigators must study about detective tequenics and gists. To maintain the safe society without the drug, we must put more attention and investment on the demand than the supply for the policy of controlling drug. At the same time, the investigators must have a sense of duty and a firm will about "crime on the drug". As a result of placing too much importance on controlling and prosecuting narcotics offenses, however, the rate of second offense is above 60% - unfavorable side effects of ill-managed aftercare. As the precedents in advaced nations demonstrate, effective treatment and rehabilitation diminish second offenses and curtail the required budget, greatly contrbuting to extermination and prevention of drug abuse. Therefore, administrative power must be put into vitalizaing rehabilitation education by giving direct job training to prison inmates and narcotic addicts. Prevention of drug abuse requires warding off second offense by subjecting drug addicts to treatment and rehabilitation in addition to publicity, enlightenment on the damage of drug abuse and keeping control over illicit pleasures. 1. In Korea drug treatment/rehabilitation policies are divided into corrective treatment, enforced treatment, surveillance, protective treatment, and treatment/rehabilitation is conducted by govemment and civilian facilities. The government organizations comprise Seoul National Mental Institution and 23 national hospitals throughout the country, the National Treasury providing all expenses. Civilian organizations are Korea Narcotics Extirpation Center and 531 institutions for treatment, rehabilitation, counseling, and protection. The present writer has focused on opening bassec materials to the public for improving treatment/rehabilitation system based on an analysis of the status quo of the internal treatment/rehabilitation of drug addicts. 2. The govemment and civilian organizations' campaign of publicity on the ill effect of drug abuse on an extensive scale over the years has brought about the majority of the nation's cognizance of the seriousness of the ill effect. The general public's attitude of a bystander assuming an unconcerned air out of a mistaken understanding that narcotics are the monopoly of specified well-off classes, however, helped escalate the spread of narcotics, and the managing authorities' being bent on inflicting punishment on offenders on exposing them has failed to give satisfactory results in banishing narcotics. For this reason even imprisoned drug addicts have not infrequently perpetrated second offenses despite vocational training. On the whole treatment/rehabilitation programs and aftercare have been poorly conducted. no more than one percent of narcotic offenders are under tratment/rehabilitation protection, the rest are likely to remain drug abusers over again. If aftercare on treatment/rehabilitation is properly conducted, it is expeced to greatly cut down expenses on drug addicts management. The present writer has focused his research on analysis, assessment of and measures to be taken for readjustment of straggling treatment/rehabilitation and protection facilities and an integrated management system of government/civilian facilities.

응력파 전파 수치모의를 위한 일차원 유한요소모형의 분산 특성 및 제어

이종세,유한규,윤성범 한국전산구조공학회 2004 한국전산구조공학회논문집 Vol.17 No.1

본 논문에서는 응력파 전파를 수치모의할 때 발생하는 수치적인 분산효과를 제거하기 위해 파동방정식에 기초한 일차원 유한요소모형을 이용하여 수치분산오차의 특성을 분석하고 분산오차를 제어할 수 있는 방법을 제안하였다. 질량행렬을 그대로 사용하는 경우와 집중질량행렬을 사용하는 경우에 대한 수치분산오차를 분석하였다. 개발된 분산제어기법은 공간미분항의 시간단계 가중치 및 질량집중도를 조정하는 음해법과 인위적인 분산항을 추가하는 양해법의 두가지 방법이다. 제안된 분산보정기법을 이용하여 계산한 수치해와 파동방정식의 해석해를 비교한 결과 본 연구에서 제안한 분산보정기법의 타당성을 확인하였다. With an aim at eliminating the numerical dispersion error arising from the numerical simulation of stress wave propagation, numerical dispersion characteristics of the wave equation based one-dimensional finite element model are analyzed and some dispersion control scheme are proposed in this paper The dispersion analyses are carried out for two types of mass matrix, namely the consistent and the lumped mass matrices. Based on the finding of the analyses, dispersion correction techniques are developed for both the implicit and explicit schemes. For the implicit scheme, either the weighting factor for the spatial derivatives of each time level or the lumping coefficient for mass matrix is adjusted to minimize the numerical dispersion. In the case of the explicit scheme an artificial dispersion term is introduced in the governing equation. The validity of the dispersion correction techniques proposed in this study is demonstrated by comparing the numerical solutions obtained using the Present techniques with the analytical ones.

Earthquake Response of Two Adjacent Buildings Founded at Different Depths

이종세,윤순종,김동우,Lee Jong-Seh,Yoon Soon-Jong,Kim Dong-Woo Computational Structural Engineering Institute of 2004 한국전산구조공학회논문집 Vol.17 No.4

본 논문에서는 이웃한 빌딩의 기초가 서로 상이한 경우, 구조물과 지반의 상호작용에 대한 지진응답해석을 하였다. 세 가지 시스템에 대한 두 가지 모델에 대하여 연구하였다. 첫째 모델의 경우에는 빌딩은 프레임모델로 지반은 그리드모델로 설정하였고, 둘째 모델의 경우에는 구조물과 지반을 평면응력과 평면변형률로 모델화하였다. 또한 변형된 관성모멘트는 지반의 탄성모듈과 함께 구조물의 단면력에 영향을 미치므로 함께 고려되었다. 근사해석으로는 유한요소법과 응답스펙트럼이 적용되었으며 제시된 예를 통하여 안전성을 논증하였다. The aim of this paper is to study the interaction between adjacent buildings with different foundation levels under earthquake loading conditions. Buildings and soil are represented by two different models. In the first case, the building itself is modeled with standard frame element, whereas the soil behavior is stimulated by a special grid model. In the second case, the building and soil are represented by plane stress or plane strain elements. The modulus of elasticity of the 9round as well as the varying relations of inertia have a strong influence on the section forces within the buildings. The Interaction between the two buildings is demonstrated and discussed via numerical examples using the proposed method.

콘크리트 지하철 구조물의 비선형 지진응답해석

이종세,최준성,박균익 漢陽大學校 工學技術硏究所 2001 工學技術論文集 Vol.10 No.-

1995년 Hyogoken-Nanbu 지진은 RC 지중 지하철 구조물에 지난 과거 전혀 경험치 못했던 심각한 피해를 일으켰다. 이같은 지진피해의 정확한 평가를 위하여, 주파수영역상에서의 지반-구조물 상호작용효과를 고려한 지하 구조물에 대한 선형지진응답해석이 수행되어왔으나, 보다 정확한 지진피해를 예측하기 위해서는 시간영역상에서 지반과 구조물의 이력감쇠와 강성변화를 고려한 비선형지진응답해석을 수행하는 것이 반드시 필요하다. 본 논문에서는 지반-구조물 상호작용을 고려한 비선형 지진응답해석을 시간영역상에서 수행하기 위하여 주파수영역상에서 지반-구조물 상호작용효과를 고려하기위해 개발된 KIESSI-2D와 유한요소 범용해석프로그램 ANSYS를 연계한 복합법을 사용하여 Hyogoken-Nanbu 지진시 피해가 많았던 고베의 가미사와 지하철역을 대상으로 비선형 지진응답해석을 수행하고 실제 발생한 피해상황과 비교 ·분석하였다. 해석시 등가 선형화기법에 근거한 대표적인 자유장 해석프로그램인 SHAKE를 사용하여 지반의 비선형성을 고려하였고, 콘크리트의 비선형성을 고려하기위해서 Hognestad 모델을 사용하였다. 해석결과 실제 발생한 중간기둥의 전단파괴를 매우 유사하게 예측할 수 있음을 보여주었다. During the 1995 Hyogoken-Nanbu earthquake, underground RC structures experienced significant damages which had never been experienced before. To evaluate these damages, a linear earthquake response analysis in frequency domain has often been used. For more accurate evaluation of the damages, however, a nonlinear earthquake response analysis in time domain must be employed by incorporating she continuous change of stiffness and hysteresis damping of soil-structure interaction systems. In this study, a hybrid method which combines a soil-structure interaction program, KIESSI-2D with a general purpose FEM package, ANSYS is developed to perform nonlinear earthquake response analysis of soil-structure interaction in time domain. As a verification of the hybrid method, nonlinear earthquake response analyses are performed on the Kamisawa subway station which was damaged severely during the Kobe earthquake and analytical results are compared with the real damages. In order to consider the nonlinearity of soil, SHAKE program is used, whereas Hognestad model is used to consider the nonlinearity of concrete. It is shown that the analytical prediction agrees fairly well with the actual damages which were caused by the shear failure of the center column of the station.

쵼트바리와 모스타르 다리

이종세 대한토목학회 2014 대한토목학회지 Vol.62 No.7

자기장과 온도장으로 재하된 강자성 판의 좌굴

이종세,왕성철 한국전산구조공학회 2002 한국전산구조공학회논문집 Vol.15 No.4

강자성 판의 자기-열-탄성 상호작용을 고찰하기 위하여 자기-열-탄성에 관한 일반화된 변분원리에 기초한 이론적인 모델이 제안되었다. 자탄성 선형화이론과 섭동법을 사용하여, 온도장과 자기장으로 재하된 단순지지 강자성 평판의자-탄성 좌굴과 자기-열-탄성 좌굴거동을 해석하였다. 또한 해석적인 고찰이 어려운 보다 복잡한 강자성 판의 자기-열-탄성 거동을 모사하기 위하여 비선형 유한요소 모형을 개발하였다. 이 유한요소모형을 이용하여 유한한 강자성 판의 자기-열-탄성 ?과 좌굴거동 그리고, 이에대한 온도장과 자기장의 영향에 대하여 고찰하였다. Based on a generalized variational principle for magneto-thermo-elasticity, a theoretical model is proposed to describe the coupled magneto-thermo-elastic interaction in soft ferromagnetic plates. Using the linearized theory of magneto-elasticity and perturbation technique, we analyze the magneto-elastic and magneto-thermo-elastic instability of simply supported ferromagnetic plates subjected to thermal and magnetic fields. A nonlinear finite element procedure is developed next to simulate the magneto-thermo-elastic behavior of a finite-size ferromagnetic plates. The effects of thermal and magnetic fields on the magneto-thermo-elastic bending and buckling is investigated in some detail.

비대면 시대 언론이 본 한국 무도의 오늘과 내일

이종세 대한무도학회 2020 대한무도학회 학술대회자료집 Vol.2020 No.2

안동문화예술회관(BTL) 건립공사

이종세,계송철,Lee, Jong-Se,Gye, Song-Cheol 한국건축시공학회 2009 한국건축시공학회지 Vol.9 No.4

방진구조물 및 비파괴 응력파 탐상의 응용을 위한 비등방성 재료의 표면파 산란에 관한 연구

이종세 한국지진공학회 1998 한국지진공학회논문집 Vol.2 No.2

이방성 재료에서의 표면파 진행과 산란에 대한 연구를 수행하였다. 두 개의 이방성 4분 무한 영역의 계면에서의 표면파 산란거동을 해석하기 위한 이론을 제안하였다. Green 함수법을 이용하여 계면에서의 표면파 산란계수를 결정하기 위한 방정식을 유도하였다. 수치계산을 수행하였으며 이방성과 비균질성이 산란 거동에 미치는 영향을 비교하였다. Propagation of elastic surface waves in anisotropic media is considered in this study. An analytical technique is proposed to study the scattering of surface waves at the interface between two anisotropic quarter-spaces. The Green's function technique is used to derive a system of equations which can determine the scattering coefficients at the interface. A numerical study is carried out and the trade-offs between the material anisotropy and inhomogeneity are studied.