강중비금속소재물의 자동측정에 관한 고찰

김기철,김재남,박세열,윤의박 대한금속재료학회(대한금속학회) 1984 대한금속·재료학회지 Vol.22 No.3

In determining non-metallic inclusion rating in steel, the efficiency and reliability of conventional manual method and computer aided automatic method using image analyzer have been investigated. To see the effect of shape change of the inclusions on the cleanliness value based on existing test standards, the test coupons examined were taken from continuously casted slab, hot rolled plate and from cold rolled sheet where some inclusions were extremely elongated. Results show that the cleanliness values determined by two methods agree fairly well for both samples with globular oxide inclusions and with properly elongated inclusions. For samples with extremely elongated inclusions, however, the cleanliness value processed by image analyzer tends to be smaller than that of manual count. It appears that the automatic method gives faster and more reliable cleanliness value since the image analyzer determines the value in area fraction instead of in point fraction.

5. 레이저 용접기술의 개요와 산업 적용 현황 - 자동차, 철강, 전자 관련 산업 수요 커 부품산업 다양화, 정밀도에 대처가능

김기철 한국광학기기산업협회 2001 光學世界 Vol.13 No.2

레이저 용접은 매우 작은 점으로 집속된 높은 밀도의 에너지로 재료를 용융시키는 용접방법으로, 좁고 깊은 용접부를 얻을 수 있으며 출력만 충분하면 단 1회의 용접으로도 상당히 깊은 용접부를 쉽게 얻는다는 장점이 있다. 레이저 용접의 원리와 특징, 레이저 용접 공정 변수, 레이저 용접공정의 관리, 산업현장에서의 레이저 용접기술 적용 현황을 알아본다.

서울시립대학교 반도체공학과

김기철 대한전자공학회 1994 CAD 및 VLSI 설계연구회지 Vol.3 No.2

The Role of Arthroscopy of Acute and Chronic Painful Thumb Metacarpophalangeal Joint

김기철,신용은,김종필 대한수부외과학회 2016 대한수부외과학회지 Vol.21 No.2

Purpose: There has been few published on arthroscopy of metacarpophalangeal joint (MCPJ) despite increasingly being used worldwide. The purpose of this study was to investigate the effectiveness of arthroscopy for pathologies around MCPJ of the thumb. Methods: Between September 2007 and June 2015, 56 patients (56 thumb) who underwent arthroscopy of the MCPJ were retrospectively studied. Preoperative diagnoses, which were made through physical examination, plain radiograph, stress radiography, ultrasound, and magnetic resonance images (MRI), were compared with arthroscopic findings. Therapeutic arthroscopic surgeries were performed according to the needs of each patient. Functional outcomes were assessed with physical examination as well as disabilities of the arm, shoulder and hand (DASH) score and Michigan Hand outcomes Questionnaire (MHQ) score at an average 7.3 months follow-up. Results: Six patients who suspected with collateral ligament injuries in MRI confirmed different diagnoses under arthroscopy. At final follow-up, the mean range of flexion contracture of the MCPJ was 5°, and the mean range of further flexion was 52.7°. Grip and pinch strength averaged 87.2% and 79.3% of contralateral side. Mean DASH and MHQ score were improved from 48.1 and 44.6, preoperatively to 14.9 and 26.3, postoperatively (p<0.001, p=0.012, respectively). All patients were satisfied with their outcomes at final follow-up, except 4 patients who noted joint stiffness or chronic pain around the thumb. Conclusion: Our results revealed that arthroscopy is helpful for both diagnostic and therapeutic purposes of acute and chronic painful MCPJ of the thumb. However, further studies are needed to expand the applications of arthroscopy of MCPJ of the thumb.

질적 연구다운 질적 연구를 위한 반성적 고찰

김기철 한국스포츠교육학회 2009 우리체육 Vol.- No.3

초등학교에서 도전활동과 경쟁활동 영역의 적용 방안

김기철 한국스포츠교육학회 2008 우리체육 Vol.- No.2

개정 체육과 교육과정에 대한 현장 교사의 인식과 반응

김기철 한국스포츠교육학회 2010 한국스포츠교육학회 학술발표논문집 Vol.2010 No.12

바닥판 구조물의 진동제어를 위한 MR 감쇠기의 적용

김기철,곽철승,Kim, Gee-Cheol,Kwak, Chul-Seung 한국공간구조학회 2006 한국공간구조학회지 Vol.6 No.3

수동동조질량감쇠기의 진동제어 효과는 질량감쇠기와 구조물과의 동조로 인하여 나타나고 있다. 그러나 바닥판 구조물의 질량과 강성의 변화로 인하여 실제 구조물에 있어서 비동조 현상이 일어나기도 한다. 이러한 상황에서는 수동동조질량감쇠기의 성능이 비효율적이며 경우에 따라서는 구조물의 진동을 증가시키기도 한다. 본 논문에서는 기계나 사람에 의한 바닥판 구조물의 진동을 줄이기 위하여 자기유체감쇠기의 적용성을 알아보고자 한다. 준 능동제어와 groundhook 제어 알고리즘을 적용하여 준능동감쇠기의 성능과 수동질량감쇠기의 성능을 비교 분석하였다. 또한 비동조 상황에서의 준능동감쇠가와 수동질량감쇠기의 견인성을 비교 분석하여 다음과 같은 결론을 얻었다. 자기유체감쇠기는 동조상황에서 우수한 제어 성능을 가지고 있으며 비동조 상황에서도 우수한 견인성을 보여주고 있다. A conventional passive TMD is only effective when it is tuned properly. In many practical applications, inevitable off-tuning of a TMD occurs because the mass in a building floor could change by moving furnishings, people gathering, etc. when TMDs are offtuned, TMDs their effectiveness is sharply reduced. Moreover, the off-tuned nTMDs can excessively amplify the vibration levels of the primary structures. This paper discusses the application of a new class of MR damper, for the reduction of floor vibrations due to machine and human movements. The STMD introduced uses a MR damper called to semi-active damper to achieve reduction in the floor vibration. Here, the STMD and the groundhook algorithm are applied to a single degree of freedom system representative of building floors. The performance or the STMD is compared to that or the equivalent passive TMD. In addition, the effects of off-tuning due to variations in the mass of the floor system. Comparison of the results demonstrates the efficiency and robustness or STMD with respect to equivalent TMD.

영혼 돌봄에 기반을 두는 목회상담: 영성지도의 속성을 받아들이는 상담

김기철 한국실천신학회 2019 신학과 실천 Vol.0 No.63

Since the 1970s North American Christians have shown their great interest in spiritual direction and it has been prevailing now. In Korea spiritual direction was introduced and began to be practiced among Protestant Christians around two decades ago. Pastoral counseling has discussed on its identity in many ways over the past five decades. As one of such discussions the discourse on the relationship between pastoral counseling and spiritual direction emerged and has been studied in the field of pastoral counseling. One of the reasons why pastoral counseling pays a close attention to spiritual direction is based on the fact that they both share their common essence of 'soul care' in the Christian tradition. They share their common ultimate purpose, a seeking for transformation and growth in faith, as well. Thus, they both are in great need of listening to each other. It would be a significant task for pastoral counseling theorists and practitioners to both reaffirm the role and function of pastoral counseling and illuminate its substantial and ultimate goal because it could be a good opportunity to examine how the ministry of soul care is still going on in pastoral counseling practices. It can also be continued to the discussion of how pastoral counseling practices in Korea contain what spiritual direction is seeking for. In this essay, I, first, will review both the tradition of soul care throughout all different Christian eras and a recent rediscovery of spiritual direction. Secondly, I will examine the identity and direction of spiritual direction and commonalities and differences between pastoral counseling and spiritual direction. Lastly, I will take a close look at where they both meet together and discuss a possibility of bringing the attributes of spiritual direction into pastoral counseling in the Korean context. It, today, seems that Korean Christians are in urgent need of seeking for a new alternative to the previous manner of soul care. Gradually, more Christians would feel that their spiritual yearnings are not fully met and they cannot experience an individual spiritual growth in their own manners. In this situation pastoral counseling in Korea needs to clarify its identity further and should be able to play its leading role in helping contemporary Christians with their spiritual yearnings. As pastoral counseling accepts the essence and attributes of spiritual direction, its identity as a form of soul care can be more clarified and refined as an efficacious means of soul care for contemporary Christians. 최근 북미를 중심으로 영성지도에 대한 관심이 급격히 늘어가고 있고, 우리나라에서도 20여년 전부터 개신교인들 사이에서 영성지도의 소개 및 보급이 꾸준하게 증가하고 있다. 목회상담학 안에서는 지난 50여년간 계속해서 정체성에 대한 논의들이 이어져 오고 있는 데, 이 논의들의 일환으로 영성지도에 대한 관심, 그리고 목회상담과 영성지도의 연결에 대한 논의가 진행돼오고 있다. 우리나라에서도 이미 다수의 학술 논문 및 단행본을 통해 목회상담 혹은 심리치료와 영성지도의 관계에 대한 연구가 이루어져오고 있다. 이렇게 목회상담이 영성지도에 관심을 기울이는 이유 중 하나는 이 둘이 기독교 전통 속의 ‘영혼 돌봄(soul care)’이라는 동일한 본질을 공유하고 있다는 점이라고 할 수 있다. 또한 궁극적 목적이 변화와 성장을 통한 구원이라고 할 수 있다는 점에서 목회상담과 영성지도는 서로에게 귀를 기울일 필요가 있다. 영혼 돌봄 사역이 오늘날의 목회상담을 통해 어떻게 이루어지고 있는지를 살펴보는 일은 목회상담의 역할과 기능을 조명해주고, 본질적이고 궁극적인 목적을 조명해 볼 수 있는 기회가 될 수 있다. 우리나라의 상황 속에서 어떻게 목회상담이 영성지도가 추구하는 바를 담아낼 수 있는 지에 대한 논의는 큰 의미가 있다고 여겨진다. 이 글에서 필자는 첫째, 역사적 변천과정 속에서 면면히 이어져온 영혼 돌봄의 전통과 오늘날의 영성지도의 재발견을 살펴보고자 한다. 둘째, 영성지도의 정체성과 방향을 살펴보며, 목회상담과 영성지도의 유사점과 차이점을 설명할 것이다. 셋째, 우리나라의 상황에서 목회상담과 영성지도의 접점에 주목하며 영성지도가 목회상담의 틀에서 이루어질 수 있는 가능성을 논의하며, 영성지도 지향적인 목회상담을 모색해보고자 한다. 오늘날 우리나라의 교회와 신앙인들의 상황에서 영혼 돌봄의 새로운 대안이 필요한 것으로 보인다. 기존의 영혼 돌봄 방식만으로는 영적 갈망을 온전히 표출하지 못하고 개별적인 영적 성장을 경험하지 못하는 신앙인들이 점차 늘어가고 있다. 이러한 현실 속에서 우리나라의 목회상담은 그 정체성을 더 선명하게 하며, 영적 대안을 찾고 있는 현대 신앙인들과 효율적으로 소통하는 일에서 주도적인 역할을 할 수 있어야 한다. 목회상담이 영혼 돌봄의 전통에 더 충실할 때, 이를 통해 목회상담은 더 효율적인 영혼 돌봄의 수단으로 현대 신앙인들에게 다가갈 수 있을 것이다.

산업장 근로자의 근골격계 자각증상과 스트레스의 평가

김기철,박승정,장두섭,김삼태,김유철,권소희,정해경,송용선,이기남,Kim Ki-Chul,Park Sung-Jung,Jahng Doo-Sub,Kim Sam-Tae,Kim Yoo-Chul,Kwon So-Hee,Jung Hae-Kyoung,Song Yung-Sun,Lee Ki-Nam 대한예방한의학회 2004 대한예방한의학회지 Vol.8 No.1

This study was conducted to evaluated musculoskeletal subjective symptoms and the degree of stress of industrial workers to present fundamental materials of preventive oriental medicine for improving their health and quality of life. During the medical examination with oriental medicine method, presence of subjective symptoms of musculoskeletal pain, Psychosocial Well-being Index(PWI) and life style were checked by using questionnaire method in 474 industrial workers. The collected data were analyzed with crosstabs, ANOVA and T-test. The results were as follows; 1. In general differences according to musculoskeletal subjective symptoms, education level of high school graduation had significantly higher distribution than that of below middle school or above university graduation in the pain present group. 2. In the musculoskeletal subjective symptoms and the degree of stress, all of Factor1, Factor2. Factor3, Factor4. and PWI had higher score in pain present group than in pain free group and the difference was statistically significant. 3. According to degree of stress and general character of subjects, single and education level of high school graduation had high score in Factor2, Factor3 and PWI. Factor1 and Factor3 was high in income group of low 1.49 million won. Factor2, Factor4, and PWI was high significantly in income group of 1.50 - 2.99 million won. In job type, manufacturing worker group had significantly high score in Factor3. 4. In degree of stress and life style difference, there was significant difference in PWI score in the field of alcohol chinking, smoking, exercise, obesity except sleeping hours. In the present study. as a result, it is found out that musculoskeletal subjective symptoms present group had higher score in psychosocial stress across the fields than symptom-free group and it is recommended that continuous studies on the relationship of job-related musculoskeletal disorders and psychosocial stress should be performed for improvement and prevention of mental and physical health of industrial worke