철도차량 유지보수 적용방향에 관한 연구

이강성(Lee Kang-Sung),손웅(Sohn Woong),강찬용(Kang Chan-Yong) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월

At the Rolling-stock, most important thing is thorough maintenance for safety as a mass transit. Recently, many studies of cost down method and acquisition of high reliability have being progressed with considering of safety. Maintenance cost is closely relative to the preventive maintenance. But generally the preventive maintenance is decided in compliance with an experience. So the study of cost down method at the preventive maintenance is difficult. In this study, many results of effectiveness and optimization for the preventive maintenance are checked. Then, it is possible that efficiency preventive maintenance method will be able to suggest.

임금협상에서 협상자 인지적 틀의 영향요인에 관한 연구

이강성(Kang-Sung Lee) 한국고용노사관계학회 2009 産業關係硏究 Vol.19 No.1

이 논문은 실제 임금협상에서 노사 협상대표자들의 인지적 틀을 긍정적 혹은 부정적으로 형성하는 데 미치는 영향 요인들을 분석하였다. 실증분석 결과, 협상대표자들의 인지적 틀의 영향 요인은 노사 양측이 서로 다르다는 것을 발견하였다. 사용자측 협상대표자들의 인지적 틀은 주로 임금관련 요인, 노조측 요인, 그리고 기업측 요인 등 복합적 요인의 영향을 받는 것으로 나타났다. 이에 비해 노조측 협상대표자의 인지적 틀은 임금관련 요인보다는 경영층의 노조관이나 노무관리 합리성, 협상에 있어 사용자 대표성 등과 같은 기업측 특성요인과 노조의 성향에 크게 영향을 받는 것으로 나타났다. 이러한 결과는 협상대표자들의 긍정적인 인지적 틀 형성을 통해 협상의 효율성을 높이기 위해서는 노사 양측의 서로 다른 이해와 욕구를 정확히 파악하고 이를 충족시키는 것이 중요하다는 시사점을 제공해 주고 있다. The purpose of this study is to investigate the factors that affect negotiator’s frame using data collected from management and labor negotiators involved in actual wage negotiations. The results showed that the factors affecting the frames of management and labor union negotiators were different. Those factors affected management negotiators’ frame were a mix of wage-related, union-related, and management-related factors. On the other hand, all the management-related factors and union characteristics were significant in determining labor negotiators’ frames. Understanding and satisfying the differences of their interests and needs are crucial ways to increase the effectiveness of negotiation through the positive frames of both management and union negotiators.

연속 반응 시간 과제 수행의 행위 관찰과 운동 상상이 거울신경활성에 미치는 영향

이상열 ( Sang Yeol Lee ),이명희 ( Myung Hee Lee ),배성수 ( Sung Soo Bae ),이강성 ( Kang Seong Lee ),공원태 ( Won Tae Gong ) 대한물리의학회 2010 대한물리의학회지 Vol.5 No.3

Purpose:The object of this study was to examine the effect of motor learning on brain activation depending on the method of motor learning. Methods:The brain activation was measured in 9 men by fMRI. The subjects were divided into the following groups depending on the method of motor learning: actually practice (AP, n=3) group, action observation (AO, n=3) group and motor imagery (MI, n=3) group. In order to examine the effect of motor learning depending on the method of motor learning, the brain activation data were measured during learning. For the investigation of brain activation, fMRI was conducted. Results:The results of brain activation measured before and during learning were as follows; (1) During learning, the AP group showed the activation in the following areas: primary motor area located in precentral gyrus, somatosensory area located in postcentral gyrus, supplemental motor area and prefrontal association area located in precentral gyrus, middle frontal gyrus and superior frontal gyrus, speech area located in superior temporal gyrus and middle temporal gyrus, Broca`s area located in inferior parietal lobe and somatosensory association area of precuneus; (2) During learning, the AO groups showed the activation in the following areas: primary motor area located in precentral gyrus, prefrontal association area located in middle frontal gyrus and superior frontal gyrus, speech area and supplemental motor area located in superior temporal gyrusand middle temporal gyrus, Broca`s area located in inferior parietal lobe, somatosensory area and primary motor area located in precentral gyrus of right cerebrum and left cerebrum, and somatosensory association area located in precuneus; and (3) During learning, the MI group showed activation in the following areas: speech area located in superior temporal gyrus, supplemental area, and somatosensory association area located in precuneus. Conclusion:Given the results above, in this study, the action observation was suggested as an alternative to motor learning through actual practice in serial reaction time task of motor learning. It showed the similar results to the actual practice in brain activation which were obtained using activation of mirror neuron. This result suggests that the brain activation occurred by the activation of mirror neuron, which was observed during action observation. The mirror neurons are located in primary motor area, somatosensory area, premotor area, supplemental motor area and somatosensory association area. In sum, when we plan a training program through physiotherapy to increase the effect during reeducation of movement, the action observation as well as best resting is necessary in increasing the effect of motor learning with the patients who cannot be engaged in actual practice.

Mitochondrial Myopathy 환자에서 과제지향적 상지운동과 탄성밴드를 이용한 기능적 근력증진 프로그램이 상지근력과 일상생활활동에 미치는 영향 -단일사례연구-

박형기,이강성,Park, Hyung-Ki,Lee, Kang-Sung 대한고유수용성신경근촉진법학회 2010 PNF and Movement Vol.8 No.1

Purpose : The purpose of this study was to the effect of task-oriented arm movements and muscle enhancement program using elastic bands on limb muscle strength and activities of daily living of mitochondrial myopathy patient. Method : Single-subject experimental research design was applied to. AB Design was adopted. The study period was approximately four weeks. A baseline period of the three sessions of the experiment, the treatment period B, 3 sessions were conducted. Baseline period to observe the patient's daily life bardel index was measured as an independent feature, MMT as a limb muscle strength was assessed by measuring early. During the period of treatment with serabaendeu limb strength training 30 minutes after the break five minutes after the treatment using MMT limb muscle strength were evaluated. Task-oriented exercise program, and who exercise a week as a treatment was carried out in 30 minutes. Result : All of the scores for each sessional period of treatment when compared to base line and upper limb muscle strengthening exercises on the subjects that did not change significantly. Conclusion : If the muscles and nervous system involvement in patients with symptoms such as muscle weakness and paralysis of upper extremity functional use is difficult.

20대 정상성인에게 6주간 플라이오메트릭 훈련이 동적 균형능력에 미치는 영향

조현래,이강성,Cho, Hyun-Rae,Lee, Kang-Sung 대한고유수용성신경근촉진법학회 2010 PNF and Movement Vol.8 No.1

Purpose : The purposes of this study was to determine the effect of plyometric training and agility training on SEBT and dynamic balance of health young. Methods : Thirty healthy subjects in their 20s were randomly assigned to a plyometric exercise group, an agility training group, and a control group; each group had 10 subjects. The training starts first 2set after more 1set 2 weeks. SEBT is measured every two weeks. Results : The results of this research were as followings: (1) After treatment, there were significant SEBT scores differences in both plyometric and agility group compared with pre-treatment(p<0.05). (2) After treatment, there were significant SEBT scores differences in both agility and control group compared with pre-treatment (p<0.05). Conclusion : It was concluded that ployometric training was effective for improving balance than agility and control group. Therefore, further studies are required to investigate the effect of plyometric training for improving balance with sports injury patient.

새로운 자율학습을 이용한 한국어 음소 인식

강명광(Myung-kwang Kang),이성권(Seong-Kwon Lee),이강성(Kang-Sung Lee),김순협(Sun-hyob Kim) 대한전자공학회 1994 대한전자공학회 학술대회 Vol.1994 No.7

상지운동 동안 복부에 적용된 압력 차이가 요부와 복부 근육 활성도에 미치는 영향

고은혜,윤혜선,신헌석,이강성,Ko, Eun-Hye,Yoon, Hye-Sun,Cynn, Heon-Seock,Lee, Kang-Sung 대한물리치료과학회 2003 대한물리치료과학회지 Vol.10 No.2

The purpose of this study was to assess the effect of applied pressure to abdomen on lumbar and abdominal muscle activation during upper limb exercise. The experimental group consisted of twenty-seven healthy male subjects (mean age=$22.40{\pm}2.19years$, mean height=$175.30{\pm}2.19cm$, mean weight= $67.67{\pm}7.44kg$, RM=$8.43{\pm}2.76kg$). In each different pressure condition (OmmHg, 30mmHg, 70mmHg, 100mmHg), upper limb exercise was performed in total of 10 trials with 10 RM dumb-bell exercise. Lumbar and abdominal muscle activity was measured using surface bipolar electrode electromyography(EMG). EMG activity was measured from upper rectus abdominis, external oblique abdominis, internal oblique abdominis, and elector spinae. The raw EMG signal was processed into the root mean square(RMS). All RMS EMG data were normalized and express as a percentage of the EMG(%EMG). Collected data were statistically analyzed by SPSS/PC Ver 10.0 using two-way analysis of variance for repeated measures($4{\pm}3$) and Bonferroni post hoc, test. Lumbar and abdominal muscle activation was significantly increased when 100 mmHg was applied(p<.05). Upper rectus abdominis activation was significantly increased compared as other muscles activation(p<.05). However, there were no interaction between pressure and muscles(p>.05). The findings of this study can be used as a fundamental data when lumbar orthosis is applied and external pressure can be used as a therapeutic tool.

증강현실 기반 학습프로그램이 학습동기 및 학업성취도에 미치는 영향 :

이지수(Ji soo Lee),심현애(Hyeon Ae Sim),김경연(Kyung Yun Kim)이강성(Kang Sung Lee) 한독교육학회 2010 교육의 이론과 실천 Vol.15 No.1

중도⋅중복장애 학생이 교육현장에서 어떤 교육을 받고 있는지 설명하고, 그들의 교육 요구에 비추 어볼 때 현재의 교육현실을 어떻게 평가할 것인지를 설명하기 위해 중도⋅중복장애 학생이 재학 중인 특수학교 48개교를 대상으로 84부 설문지 자료를 근거로 학교교육 현황을 2개 영역으로 구분, 1)해당 장애학생에 대한 전반적 인식 및 해당 학생을 위한 학교의 교육기반 영역과 2)교육과정 운영 영역에 대해 알아보았다. 연구결과 중도⋅중복장애 학생 담당교사는 해당 학생이 지닌 능력과 가능성에 대한 인식이 충분하지 못하며, 교육과정 등 관련 자료 부족을 이유로 해당 학생을 위한 적합한 교육활동에 대한 확신이 부족했다. 특히 교육과정 운영에 있어서 막연히 알고 있는 직무상의 어려움과 실제 느끼 는 어려움에 차이가 나타났는데 이는 교육활동에 대한 교사의 이론적 반성이 부족하다는 것을 의미했 다. 특수학교 교원양성 과정이나 연수과정에 특히 ‘표준전공이론’을 통한 보완조치 논의가 해결의 실마 리를 제공하리라 기대한다. The purpose of this study was to design and develope the augment-reality based science learning program for facilitating learning motivation and to identify the effects of the program to learning motivation and learning achievement. First, design strategies for augmented reality based science learning program were devised using ARCS model proposed by Keller, and the learning program which includes augment reality based learning contents and teaching guidance was developed. Second, empirical experiment using the program was conducted. The subject was 30 5th grade elementary students and assigned to experimental and control group. The result was as follows: First, the program showed positive effect on learning motivation. Specifically the size of effect was high by order of attention, confidence, satisfaction and relevance. Second, the program showed positive effect on understanding and application while it showed no effect on the conceptual acquisition. The results provided the implication on the instructional design and application of learning program based on the augmented reality.

간호사가 지각하는 변혁적 리더십이 일의 의미와 이직 의도에 미치는 영향

전정민(Jeong-Min Jeon),이강성(Kang-Sung Lee),박철주(Chul-Ju Park),우희영(Hee-Yeong Woo) 한국산학기술학회 2016 한국산학기술학회논문지 Vol.17 No.7

본 논문은 의료 기관에 종사하는 간호사가 지각하는 리더의 변혁적 리더십이 심리적 자본을 매개로 구성원의 직무태 도인 일의 의미와 이직 의도에 미치는 영향을 파악하기 위하여 시도되었다. 본 연구는 서울 소재 300병상 이상 3개 종합병원 에서 근무하는 간호사 201명을 대상으로 하였으며, 자료 분석은 SPSS Windows 20.0과 AMOS 20.0을 사용하였다. 구조방정 식 모형을 구축하기 위해 확인적 요인분석을 실시하였으며, 집중타당도와 모형의 적합도 검증하였다. 분석 결과 변혁적 리더 십은 심리적 자본(.68, p=.007)에 직접적인 영향을 미쳤으며, 이직 의도(-.34, p=.008)를 낮추고, 일의 의미(.11, p=.007)를 향상 시키는데 직접적인 영향을 미치는 것으로 나타났다. 또한 심리적 자본은 일의 의미(.26, p=.009)와 이직 의도(-.07, p=.041)에 직접적인 영향을 미쳤고, 이직 의도(-.05, p=.087)와 일의 의미(.18, p=.004)에 간접적인 영향을 미치는 것으로도 나타났다. 본 연구의 결과는 간호사들의 이직 의도를 낮추고 일의 의미를 높이기 위해 리더의 변혁적 리더십과 구성원이 가지고 있는 심리적 자본의 매개 효과를 고려한 인적자원 관리 프로그램의 개발이 요구된다. The purpose of this study was to explore the effects of transformational leadership as perceived by nurses working in medical institutions on their work attitudes using psychological capital as a mediating variable. Subjects were 201 nurses working in three general hospitals located in Seoul with more than 300 beds, and SPSS Windows 20.0 and AMOS 20.0 were used for data analysis. As the results of the analysis, transformational leadership had direct effects on psychological capital (.68, p=.007), turnover intention (-.34, p=.008), and meaning of work (.11, p=.007), whereas psychological capital had direct effects on meaning of work (.26, p=.009) and turnover intention (-.07, p=.041). In addition, transformational leadership had indirect effects on turnover intention (-.05, p=.087) and meaning of work (.18, p=.004). The results of this study can be used as a base material in the development of programs to exert positive effects on nurses' work attitudes.

슬관절 움직임 제한 보조기를 이용한 슬관절 과신전 제한이 편마비 환자의 균형과 보행에 미치는 영향

이은혁(Eun-Hyuk Lee),민경옥(Kyung-Ok Min),이강성(Kang-Sung Lee) 한국콘텐츠학회 2010 한국콘텐츠학회논문지 Vol.10 No.3

본 연구는 편마비 환자 중 슬관절 과신전으로 인해 균형 및 보행 장애를 보이는 환자들에게 슬관절 움직임 제한 보조기로 과신전을 제한시킨 연구군과, 치료사의 손으로 과신전을 제한시킨 대조군으로 나누어 전통적인 물리치료를 실시해 치료 전, 후와 두 간을 비교하여, 슬관절 움직임 제한 보조기가 슬관절 과신전이 있는 편마비 환자의 균형과 보행에 미치는 영향을 알아보고자 하였다. 연구 대상은 서울 참병원에서 편마비로 인하여 편마비라고 진단 받고 입원 및 통원 치료를 하는 환자 중 슬관절 과신전을 보이는 20명을 대상으로 무작위로 연구군과 대조군으로 나누어 연구 전, 후를 BBS (Berg Balance Scale), TUG (Time Up & Go Test), 보행 능력 평가를 이용하여 측정 비교 하였다. BBS를 이용해 균형능력을 측정한 결과 연구군, 대조군 모두에서 실험 전, 후에 유의한 차이를 보였다(p<0.05). 또한 TUG를 이용한 균형능력 측정 결과에서도 연구군, 대조군 모두에서 실험 전, 후에 유의한 차이를 보였다(p<0.05). 보행 능력 검사를 이용해 보행능력 평가를 한 결과 연구군, 대조군 모두에서 실험 전, 후에 유의한 차이를 보였다 (p<0.05). 균형 및 보행능력을 주 단위로 측정한 결과 연구군과 대조군 모두에서 유의한 증가를 보였고 (p<0.05), 두군 간에는 균형능력에서만 유의한 차이가 있었다(p<0.05). 하지만 그래프상으로 봤을 때 연구군에서 균형과 보행능력의 더 많은 증가를 보였다. 본 연구 결과 슬관절 움직임 제한 보조기를 사용한 슬관절 과신전 제한 후 치료는 편마비 환자의 보행능력 증진에는 유의한 효과가 없었지만, 균형능력 증진에 유의한 효과가 있었다. The purposes of this study was to determine the effects of limited hyperextension at knee joint using Limited Motion Knee Brace on balance and walking in patients with hemiplegia. The subjects of this study were 20 post-stroke hemiplegic patients admitted. Subjects were randomly assigned to either experimental group (Limited Motion Knee Brace group) or control group (manual restriction group). Both groups received traditional physical therapy intervention. The effects of each therapeutic method were evaluated by measurements of gait ability assesment, Berg balance scale (BBS), 10-meter walk speed (10MWS), Timed Up & Go (TUG) Test. The results of this research were as followings: (1) After treatment, there were significant BBS scores differences in both experimental and control group compared with pre-treatment(p<0.05). (2) After treatment, there were significant TUG test scores differences in both experimental and control group compared with pre-treatment (p<0.05). (3) After treatment, there were significant 10MWS differences in both experimental and control group compared with pre-treatment (p<0.05). (4) There were significant BBS scores differences in third and fourth week between experimental and control group (p<0.05). It was concluded that Limited Motion Knee Brace was effective for improving balance and for reducing fatigue for experimental group. Therefore, further studies are required to investigate the effect of knee orthosis for improving balance and walking in patients with hemiplegia.