• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.2 no.1
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• pp.21-32
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• 1996

To compare the treatment effects of back exercise on functional status, spinal mobility, SLR, pain severity, and treatment results satisfaction, and to determine whether spinal exercises during the low back pain reduces recurrent episodes of back pain. 1. Flexion and extension exercise groups did not differ in any outcome over 4weeks. After 1week, both exercise groups had reduced disability score, a higher proportion returning to work, and fewer subjects with a positive SLR compared with the control group. 2. There was no difference among groups regarding recurrence of low back pain after 6~12 months. 3. There was no difference for any outcomes between the flexion or extension groups. However, either exercise was slightly more effective than no exercise when patients with low back pain were treated.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.15 no.2
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• pp.35-43
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• 2009

Purpose : The purpose of this study was to measure the change of strength of trunk flexion and extension on abdominal and back muscles. Methods : Each taping group 1(n=14), taping group 2(n=14), taping group 3(n=14) and control group(n=15) were measured a muscle strength by Biodex at first test, second test, third test and forth test in 3 days. Results : The strength of trunk flexion and extension was significantly different among the experimental groups (p<.05). It also shows that significant increasing of muscle strength at 48 hours after application of taping (p<.05). Conclusion : In conclusion, we were found that taping technique base on taping type show immediately assistance of muscle strength and enduring effect for 48 hours.

• Journal of Korean Foot and Ankle Society
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• v.18 no.4
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• pp.208-211
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• 2014

Chronic extensor hallucis longus tendon ruptures are very rare, and may lead to hallux dysfunction. To the best of our knowledge, reconstruction of a chronic extensor hallucis longus rupture using interposed scar tissue has not been previously reported. Our results show that direct repair method using interposed scar tissue for chronic extensor hallucis longus rupture can successfully restore function of the hallux and provide good satisfaction in carefully selected patients.

• Proceedings of the KIEE Conference
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• 2003.11a
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• pp.354-357
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• 2003

전력산업은 국가의 가장 중요한 중추적인 기간산업임에도 불구하고 최근 정보 통신 산업 등에 밀려 위기를 맞고 있다고 할 수 있다. 그러나 IT기술의 발달과 전력기기, 설비의 디지털화 기술개발이 본격화되면서 전력 IT기술과 산업은 IT 융합형의 신전력산업으로 그 가능성이 어떤 분야보다 크며 새로운 기회를 맞이하고 있다고 볼 수 있다. 특히 중전기기분야에 선진국에서는 전력산업이 퇴조를 이룬 반면 국내에는 한국전력, 각 학계, 연구소 및 업계에 많은 전문인력을 확보하고 있으며, 특히 세계적인 경쟁력이 있는 IT기술을 확보하고 있다. 그러므로 IT기술과 중전기기, 전력계통 기술을 융합하여 전력산업에서의 새로운 산업창출을 도모하고 세계적인 경쟁력을 조기에 확보하여 수출산업으로 육성하기 위하여 정부는 차세대 성장동력산업의 주력기간산업으로 전력 IT분야를 포함하기에 이르렀다. 이제 차세대 성장동력산업의 산업 기술혁신 5개년 계획에 따라 전력 IT가 전기산업 분야의 새로운 산업으로 발전할 수 있어야 하겠다.

• Journal of Korean Physical Therapy Science
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• v.1 no.2
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• pp.215-222
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• 1994

The aim of this study was to determine the normative strength value for cervical flexors, extensors and right lateral flexors, left lateral flexors to provide a guideline for rehabilitation of cervical radiculopathy patients. The isometric evaluation of cervical flexors, extensors and lateral flexors by using the Hand-held dynamometer was performed on 50 males and 50 females. The result were as follows. The average cervical muscle strength were 5.7 kg in flexor. 10.5 kg in extensors, and 6.6 kg in right lateral flexor, 6.5 kg in left lateral flexor. There was statistically significant difference between the cervical flexors and extensors(p<0.01) but no significant difference between right lateral flexor and left lateral flexor. There was statistically significant difference between male and female(p<0.01). When one of cervical muscle was strong, also the others did in subjects(p<0.01) and the body weight was significantly releated to the cervical muscle strength(p<0.01).

• Journal of Biomedical Engineering Research
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• v.22 no.1
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• pp.41-47
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• 2001

본 연구는 한 대의 칼라 카메라와 광학장치를 이용하여 인체의 운동량을 측정하는 시스템에 관한 것이다. 광학을 이용하여 인체의 운동량을 측정하기 위해서는 일반적으로 두 대 이상의 카메라로부터 획득된 영상으로 측정물체에 대한 좌표를 구하는 입체화상법을 사용한다. 제시한 시스템은 서로 다른 색의 칼라필터와 거울을 통과한 두 개의 광경로를 빔스플리터로 중첩시켜서 한 대의 칼라카메라로 영상을 획득하여 분석하는 것으로, 한 대의 칼라카메라가 두 대의 단색 가상카메라 역할을 하는 것이다. 단색 가상카메라는 적색, 녹색과 청색의 세 가지로 본 실험에서는 적색의 밝기가 가장 낮아서 녹색과 청색 가상카메라를 사용하였다. 광학장치를 이용하여 칼라카메라로 획득된 적색, 녹색과 청색별로 8bit인 24bit 디지털영상에서 녹색과 청색 영상은 각각 녹색과 청색의 가상카메라로 획득한 영상이다. 이 영상들을 이진화하여 측정물체를 배경으로부터 분리하고, 이진영상에서 일정한 면적을 지닌 영역의 중심을 측정물체가 영상면에 투영된 좌표로 본다. 녹색과 청색 영상에서 동일한 측정물체에 대한 영상선을 구하고 이들의 교차점을 측정물체의 공간좌표로 하였다. 이 시스템을 이용하여 직립 및 신전자세에서 척추의 형상을 측정하였으며 향후 시스템의 추가적인 개발과 적응분야에 대하여도 살펴보았다.

• Proceedings of the Korean Society for Information Management Conference
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• 2015.08a
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• pp.127-130
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• 2015

본 연구는 공공도서관 사서들의 직무스트레스를 업무 능력 및 효율성을 저해하는 요소로 파악하고 직무스트레스 요인을 분석하고자 하였다. 특히 업무정보와 직무스트레스간의 상관관계가 있다는 가설을 설정하고 접근하였다. 이를 위해 공공도서관 사서 총 36명을 대상으로 방문 및 전자 메일 설문을 통해 직무스트레스 현황을 조사하였다. 조사 결과, 업무정보와 직무스트레스는 상관관계가 있는 것으로 나타났으며, 직무스트레스의 경우 조직적 영역의 요인보다는 개인적 영역의 요인이 상대적으로 크게 작용함을 알 수 있었다. 본 연구를 통해 업무 정보의 중요성을 인식하고, 원활한 정보 교류 및 교육을 통해 업무 효율성을 높이고자 하였으며, 더 나아가 후속연구를 위해 측정도구가 개발된다면 보다 정확한 결과를 기대해 볼 수 있을 것이라 생각한다.

• Progress in Superconductivity and Cryogenics
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• v.9 no.3
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• pp.16-20
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• 2007

This paper describes protection system of new distribution power system with superconducting power devices such as HTS cable, HTS transformer, HTS-FCL. First of all, this paper investigates protection systems of Korean power system and then do a basic study on relaying systems in the power system with HTS power devices. For the more detailed results, we did the study using EMTDC relaying system modeling from the viewpoint of superconducting power devices application. Then we proposed some solution for a high resistance fault problem.

• Journal of Yeungnam Medical Science
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• v.14 no.1
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• pp.175-182
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• 1997

Forty-two preoperative CT scans with renal cell carcinoma were reviewed and compared with pathologic findings to evaluate the differential points between stage I and II. Regardless of whole body staging, perirenal fat infiltrations were seen in 9 cases and the other 33 cases showed no infiltration onto perirenal fat tissue. We retrospectively reviewed them by comparing tumor size and CT findings, following three view points, lobulating contour of tumor margin, thickening of Gerota's fascia and strands in perirenal fat tissue. The size of them was 2-15 cm, size of the stage I tumors was 2-15 cm and that of stage II was 6-15 cm. In stage I(n=33), 25 cases(76%) showed smooth margin, and the others(n=8) showed lobulating contours. Thickening of Gerota's fascia was observed in 7 cases(21%) and strands in perirenal fat tissue in 14(42%). Of these, only one positive finding was seen in 7 cases(21%), 2 findings in 6(18%), 3 findings in 3 (9%) and nothing in 17cases(51%). In stage II(n=9), 3 cases(34%) showed smooth margin, and the others(n=6) showed lobulating contours. Thickening of Gerota's fascia were observed in 5 cases(55%) and strands in perirenal fat tissue in 9(100%). Of these, one finding was seen in 2 cases(22%), 2 findings in 3(33%), 3 findings in 4 (44%). In conclusion, it is insufficient to evaluate the perirenal fat infiltration in renal cell carcinoma with only one positive finding of 3 view points; lobulation of tumor margin, thickening of Gerota's fascia, strands in perirenal fat tissue. But if all these findings are shown, it is helpful to determinate perirenal fat infiltration of renal cell carcinoma.

• The Journal of the Korean bone and joint tumor society
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• v.9 no.1
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• pp.52-60
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• 2003

Purpose: To analyse their end results and also to differentiate the single or multiple giant cell tumor(GCT) of tendon sheath in hand. Materials & Methods: Total 21 cases with GCT of tendon sheath in hand were treated surgically and analyzed their end results with clinically, radiologically and pathologically to allowed for average 16 months after surgical excision. Results: The finger flexor tendons, especially on index and ring finger, involving distal interphalangeal joint and mid-phalanges in fourth decades (average age of 47 years old) were frequently involved, and the mass was not exceed than 2 cm in size, fixed on tendon sheath with rubbery hard tenderness but rare bony involvements except 4 cases of bony erosion and cortical perforation. The three cases with multiple GCT of hand was also combined with familial hypercholesterolemia, and are commonly involved the extensor tendons as well as achilles tendons bilaterally, treated with partial excision because of multiplicity. Average 16 months after surgical excision for single GCT cases was followed and showed the recurrence in 3 cases(3/18,16.7%), treated with wide excision. The single and multifocal GCT are similar in pathologic changes but different soft tissue tumors in their pathogenesis, treatment and prognosis. Conclusion: Incomplete excision of GCT of tendon sheath in hand are thought to be the cause of recurrence, especially in cases with incomplete lesional excision, in multilobular and bony involvement etc. So careful wide excision is necessary to prevent the recurrence.